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new seekable stream encoder and file encoder layers, not fully implemented yet

This commit is contained in:
Josh Coalson 2002-07-31 07:05:33 +00:00
parent 570db86717
commit f1eff45c96
16 changed files with 3142 additions and 107 deletions
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2
include/FLAC/Makefile.am
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@ -21,10 +21,12 @@ includedir = ${prefix}/include/FLAC
include_HEADERS = \
all.h \
assert.h \
file_encoder.h \
file_decoder.h \
format.h \
metadata.h \
ordinals.h \
seekable_stream_decoder.h \
seekable_stream_encoder.h \
stream_decoder.h \
stream_encoder.h

24
include/FLAC/all.h
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@ -22,10 +22,12 @@
#include "assert.h"
#include "file_decoder.h"
#include "file_encoder.h"
#include "format.h"
#include "metadata.h"
#include "ordinals.h"
#include "seekable_stream_decoder.h"
#include "seekable_stream_encoder.h"
#include "stream_decoder.h"
#include "stream_encoder.h"
@ -94,6 +96,28 @@
* From there you can go on to look at the documentation of
* individual functions. You can see different views of the individual
* functions through the links in top bar across this page.
*
* \section embedded_developers Embedded Developers
*
* libFLAC has grown larger over time as more functionality has been
* included, but much of it may be unnecessary for a particular embedded
* implementation. Unused parts may be pruned by some simple editing of
* src/libFLAC/Makefile.am. In general, the decoders, encoders, and
* metadata interface are all independent from each other.
*
* It is easiest to just describe the dependencies:
*
* - All modules depend on the \link flac_format Format \endlink module.
* - The decoders and encoders are independent of each other.
* - The metadata interface requires the file decoder.
* - The decoder and encoder layers depend on the layers below them, but
* not above them; e.g. the seekable stream decoder depends on the stream
* decoder but not the file decoder
*
* For example, if your application only requires the stream decoder, no
* encoders, and no metadata interface, you can remove the seekable stream
* decoder, file decoder, all encoders, and the metadata interface, which
* will greatly reduce the size of the library.
*/
/** \defgroup flac FLAC C API

711
include/FLAC/file_encoder.h Normal file
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@ -0,0 +1,711 @@
/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef FLAC__FILE_ENCODER_H
#define FLAC__FILE_ENCODER_H
#include "seekable_stream_encoder.h"
#ifdef __cplusplus
extern "C" {
#endif
/** \file include/FLAC/file_encoder.h
*
* \brief
* This module contains the functions which implement the file
* encoder.
*
* See the detailed documentation in the
* \link flac_file_encoder file encoder \endlink module.
*/
/** \defgroup flac_file_encoder FLAC/file_encoder.h: file encoder interface
* \ingroup flac_encoder
*
* \brief
* This module contains the functions which implement the file
* encoder.
*
* The basic usage of this encoder is as follows:
* - The program creates an instance of an encoder using
* FLAC__file_encoder_new().
* - The program overrides the default settings using
* FLAC__file_encoder_set_*() functions.
* - The program initializes the instance to validate the settings and
* prepare for encoding using FLAC__file_encoder_init().
* - The program calls FLAC__file_encoder_process() or
* FLAC__file_encoder_process_interleaved() to encode data, which
* subsequently writes data to the output file.
* - The program finishes the encoding with FLAC__file_encoder_finish(),
* which causes the encoder to encode any data still in its input pipe,
* rewind and write the STREAMINFO metadata to file, and finally reset
* the encoder to the uninitialized state.
* - The instance may be used again or deleted with
* FLAC__file_encoder_delete().
*
* The file encoder is a wrapper around the
* \link flac_seekable_stream_encoder seekable stream encoder \endlink which supplies all
* callbacks internally; the user need specify only the filename.
*
* Make sure to read the detailed description of the
* \link flac_seekable_stream_encoder seekable stream encoder module \endlink since the
* \link flac_stream_encoder stream encoder module \endlink since the
* file encoder inherits much of its behavior from them.
*
* \note
* The "set" functions may only be called when the encoder is in the
* state FLAC__FILE_ENCODER_UNINITIALIZED, i.e. after
* FLAC__file_encoder_new() or FLAC__file_encoder_finish(), but
* before FLAC__file_encoder_init(). If this is the case they will
* return \c true, otherwise \c false.
*
* \note
* FLAC__file_encoder_finish() resets all settings to the constructor
* defaults.
*
* \{
*/
/** State values for a FLAC__FileEncoder
*
* The encoder's state can be obtained by calling FLAC__file_encoder_get_state().
*/
typedef enum {
FLAC__FILE_ENCODER_OK = 0,
/**< The encoder is in the normal OK state. */
FLAC__FILE_ENCODER_NO_FILENAME,
/**< FLAC__file_encoder_init() was called without first calling
* FLAC__file_encoder_set_filename().
*/
FLAC__FILE_ENCODER_SEEKABLE_STREAM_ENCODER_ERROR,
/**< An error occurred in the underlying seekable stream encoder;
* check FLAC__file_encoder_get_seekable_stream_encoder_state().
*/
FLAC__FILE_ENCODER_FATAL_ERROR_WHILE_WRITING,
/**< A fatal error occurred while writing to the encoded file. */
FLAC__FILE_ENCODER_ERROR_OPENING_FILE,
/**< An error occurred opening the output file for writing. */
FLAC__FILE_ENCODER_MEMORY_ALLOCATION_ERROR,
/**< Memory allocation failed. */
FLAC__FILE_ENCODER_ALREADY_INITIALIZED,
/**< FLAC__file_encoder_init() was called when the encoder was
* already initialized, usually because
* FLAC__file_encoder_finish() was not called.
*/
FLAC__FILE_ENCODER_UNINITIALIZED
/**< The encoder is in the uninitialized state. */
} FLAC__FileEncoderState;
/** Maps a FLAC__FileEncoderState to a C string.
*
* Using a FLAC__FileEncoderState as the index to this array
* will give the string equivalent. The contents should not be modified.
*/
/* @@@@ double-check mapping */
extern const char * const FLAC__FileEncoderStateString[];
/***********************************************************************
*
* class FLAC__FileEncoder
*
***********************************************************************/
struct FLAC__FileEncoderProtected;
struct FLAC__FileEncoderPrivate;
/** The opaque structure definition for the file encoder type.
* See the \link flac_file_encoder file encoder module \endlink
* for a detailed description.
*/
typedef struct {
struct FLAC__FileEncoderProtected *protected_; /* avoid the C++ keyword 'protected' */
struct FLAC__FileEncoderPrivate *private_; /* avoid the C++ keyword 'private' */
} FLAC__FileEncoder;
/***********************************************************************
*
* Class constructor/destructor
*
***********************************************************************/
/** Create a new file encoder instance. The instance is created with
* default settings; see the individual FLAC__file_encoder_set_*()
* functions for each setting's default.
*
* \retval FLAC__FileEncoder*
* \c NULL if there was an error allocating memory, else the new instance.
*/
FLAC__FileEncoder *FLAC__file_encoder_new();
/** Free an encoder instance. Deletes the object pointed to by \a encoder.
*
* \param encoder A pointer to an existing encoder.
* \assert
* \code encoder != NULL \endcode
*/
void FLAC__file_encoder_delete(FLAC__FileEncoder *encoder);
/***********************************************************************
*
* Public class method prototypes
*
***********************************************************************/
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_streamable_subset().
*
* \default \c true
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_streamable_subset(FLAC__FileEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_do_mid_side_stereo().
*
* \default \c false
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_do_mid_side_stereo(FLAC__FileEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_loose_mid_side_stereo().
*
* \default \c false
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_loose_mid_side_stereo(FLAC__FileEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_channels().
*
* \default \c 2
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_channels(FLAC__FileEncoder *encoder, unsigned value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_bits_per_sample().
*
* \warning
* Do not feed the encoder data that is wider than the value you
* set here or you will generate an invalid stream.
*
* \default \c 16
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_bits_per_sample(FLAC__FileEncoder *encoder, unsigned value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_sample_rate().
*
* \default \c 44100
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_sample_rate(FLAC__FileEncoder *encoder, unsigned value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_blocksize().
*
* \default \c 1152
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_blocksize(FLAC__FileEncoder *encoder, unsigned value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_max_lpc_order().
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_max_lpc_order(FLAC__FileEncoder *encoder, unsigned value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_qlp_coeff_precision().
*
* \note
* In the current implementation, qlp_coeff_precision + bits_per_sample must
* be less than 32.
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_qlp_coeff_precision(FLAC__FileEncoder *encoder, unsigned value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search().
*
* \default \c false
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_do_qlp_coeff_prec_search(FLAC__FileEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_do_escape_coding().
*
* \default \c false
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_do_escape_coding(FLAC__FileEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_do_exhaustive_model_search().
*
* \default \c false
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_do_exhaustive_model_search(FLAC__FileEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_min_residual_partition_order().
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_min_residual_partition_order(FLAC__FileEncoder *encoder, unsigned value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_max_residual_partition_order().
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_max_residual_partition_order(FLAC__FileEncoder *encoder, unsigned value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_rice_parameter_search_dist().
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_rice_parameter_search_dist(FLAC__FileEncoder *encoder, unsigned value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_total_samples_estimate().
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_total_samples_estimate(FLAC__FileEncoder *encoder, FLAC__uint64 value);
/** This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_set_metadata().
*
* \default \c NULL, 0
* \param encoder An encoder instance to set.
* \param metadata See above.
* \param num_blocks See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_metadata(FLAC__FileEncoder *encoder, FLAC__FileMetadata **metadata, unsigned num_blocks);
/** Set the output file name encode to.
*
* \note
* The filename is mandatory and must be set before initialization.
*
* \note
* Unlike the FLAC__FileDecoder, the filename does not interpret "-" for
* \c stdout; writing to \c stdout is not relevant in the file encoder.
*
* \default \c NULL
* \param encoder A encoder instance to set.
* \param value The output file name.
* \assert
* \code encoder != NULL \endcode
* \code value != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, or there was a memory
* allocation error, else \c true.
*/
FLAC__bool FLAC__file_encoder_set_filename(FLAC__FileEncoder *encoder, const char *value);
/** Get the current encoder state.
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__FileEncoderState
* The current encoder state.
*/
FLAC__FileEncoderState FLAC__file_encoder_get_state(const FLAC__FileEncoder *encoder);
/** Get the state of the underlying seekable stream encoder.
* Useful when the file encoder state is
* \c FLAC__FILE_ENCODER_SEEKABLE_STREAM_ENCODER_ERROR.
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__SeekableStreamEncoderState
* The seekable stream encoder state.
*/
FLAC__SeekableStreamEncoderState FLAC__file_encoder_get_seekable_stream_encoder_state(const FLAC__FileEncoder *encoder);
/** Get the "streamable subset" flag.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_streamable_subset().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_streamable_subset().
*/
FLAC__bool FLAC__file_encoder_get_streamable_subset(const FLAC__FileEncoder *encoder);
/** Get the "mid/side stereo coding" flag.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_do_mid_side_stereo().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_get_do_mid_side_stereo().
*/
FLAC__bool FLAC__file_encoder_get_do_mid_side_stereo(const FLAC__FileEncoder *encoder);
/** Get the "adaptive mid/side switching" flag.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_loose_mid_side_stereo().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_loose_mid_side_stereo().
*/
FLAC__bool FLAC__file_encoder_get_loose_mid_side_stereo(const FLAC__FileEncoder *encoder);
/** Get the number of input channels being processed.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_channels().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_channels().
*/
unsigned FLAC__file_encoder_get_channels(const FLAC__FileEncoder *encoder);
/** Get the input sample resolution setting.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_bits_per_sample().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_bits_per_sample().
*/
unsigned FLAC__file_encoder_get_bits_per_sample(const FLAC__FileEncoder *encoder);
/** Get the input sample rate setting.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_sample_rate().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_sample_rate().
*/
unsigned FLAC__file_encoder_get_sample_rate(const FLAC__FileEncoder *encoder);
/** Get the blocksize setting.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_blocksize().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_blocksize().
*/
unsigned FLAC__file_encoder_get_blocksize(const FLAC__FileEncoder *encoder);
/** Get the maximum LPC order setting.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_max_lpc_order().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_max_lpc_order().
*/
unsigned FLAC__file_encoder_get_max_lpc_order(const FLAC__FileEncoder *encoder);
/** Get the quantized linear predictor coefficient precision setting.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_qlp_coeff_precision().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_qlp_coeff_precision().
*/
unsigned FLAC__file_encoder_get_qlp_coeff_precision(const FLAC__FileEncoder *encoder);
/** Get the qlp coefficient precision search flag.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_do_qlp_coeff_prec_search().
*/
FLAC__bool FLAC__file_encoder_get_do_qlp_coeff_prec_search(const FLAC__FileEncoder *encoder);
/** Get the "escape coding" flag.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_do_escape_coding().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_do_escape_coding().
*/
FLAC__bool FLAC__file_encoder_get_do_escape_coding(const FLAC__FileEncoder *encoder);
/** Get the exhaustive model search flag.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_do_exhaustive_model_search().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_do_exhaustive_model_search().
*/
FLAC__bool FLAC__file_encoder_get_do_exhaustive_model_search(const FLAC__FileEncoder *encoder);
/** Get the minimum residual partition order setting.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_min_residual_partition_order().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_min_residual_partition_order().
*/
unsigned FLAC__file_encoder_get_min_residual_partition_order(const FLAC__FileEncoder *encoder);
/** Get maximum residual partition order setting.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_max_residual_partition_order().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_max_residual_partition_order().
*/
unsigned FLAC__file_encoder_get_max_residual_partition_order(const FLAC__FileEncoder *encoder);
/** Get the Rice parameter search distance setting.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_get_rice_parameter_search_dist().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__file_encoder_set_rice_parameter_search_dist().
*/
unsigned FLAC__file_encoder_get_rice_parameter_search_dist(const FLAC__FileEncoder *encoder);
/** Initialize the encoder instance.
* Should be called after FLAC__file_encoder_new() and
* FLAC__file_encoder_set_*() but before FLAC__file_encoder_process()
* or FLAC__file_encoder_process_interleaved(). Will set and return
* the encoder state, which will be FLAC__FILE_ENCODER_OK if
* initialization succeeded.
*
* \param encoder An uninitialized encoder instance.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__FileEncoderState
* \c FLAC__FILE_ENCODER_OK if initialization was successful; see
* FLAC__FileEncoderState for the meanings of other return values.
*/
FLAC__FileEncoderState FLAC__file_encoder_init(FLAC__FileEncoder *encoder);
/** Finish the encoding process.
* Flushes the encoding buffer, releases resources, resets the encoder
* settings to their defaults, and returns the encoder state to
* FLAC__FILE_ENCODER_UNINITIALIZED.
*
* In the event of a prematurely-terminated encode, it is not strictly
* necessary to call this immediately before FLAC__file_encoder_delete()
* but it is good practice to match every FLAC__file_encoder_init()
* with a FLAC__file_encoder_finish().
*
* \param encoder An uninitialized encoder instance.
* \assert
* \code encoder != NULL \endcode
*/
void FLAC__file_encoder_finish(FLAC__FileEncoder *encoder);
/** Submit data for encoding.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_process().
*
* \param encoder An initialized encoder instance in the OK state.
* \param buffer An array of pointers to each channel's signal.
* \param samples The number of samples in one channel.
* \assert
* \code encoder != NULL \endcode
* \code FLAC__file_encoder_get_state(encoder) == FLAC__FILE_ENCODER_OK \endcode
* \retval FLAC__bool
* \c true if successful, else \c false; in this case, check the
* encoder state with FLAC__file_encoder_get_state() to see what
* went wrong.
*/
FLAC__bool FLAC__file_encoder_process(FLAC__FileEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples);
/** Submit data for encoding.
* This is inherited from FLAC__SeekableStreamEncoder; see
* FLAC__seekable_stream_encoder_process_interleaved().
*
* \param encoder An initialized encoder instance in the OK state.
* \param buffer An array of channel-interleaved data (see above).
* \param samples The number of samples in one channel, the same as for
* FLAC__file_encoder_process(). For example, if
* encoding two channels, \c 1000 \a samples corresponds
* to a \a buffer of 2000 values.
* \assert
* \code encoder != NULL \endcode
* \code FLAC__file_encoder_get_state(encoder) == FLAC__FILE_ENCODER_OK \endcode
* \retval FLAC__bool
* \c true if successful, else \c false; in this case, check the
* encoder state with FLAC__file_encoder_get_state() to see what
* went wrong.
*/
FLAC__bool FLAC__file_encoder_process_interleaved(FLAC__FileEncoder *encoder, const FLAC__int32 buffer[], unsigned samples);
/* \} */
#ifdef __cplusplus
}
#endif
#endif

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/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef FLAC__SEEKABLE_STREAM_ENCODER_H
#define FLAC__SEEKABLE_STREAM_ENCODER_H
#include "stream_encoder.h"
#ifdef __cplusplus
extern "C" {
#endif
/** \file include/FLAC/seekable_stream_encoder.h
*
* \brief
* This module contains the functions which implement the seekable stream
* encoder.
*
* See the detailed documentation in the
* \link flac_seekable_stream_encoder seekable stream encoder \endlink module.
*/
/** \defgroup flac_seekable_stream_encoder FLAC/seekable_stream_encoder.h: seekable stream encoder interface
* \ingroup flac_encoder
*
* \brief
* This module contains the functions which implement the seekable stream
* encoder.
*
* XXX (import)
*
* The seekable stream encoder is a wrapper around the
* \link flac_stream_encoder stream encoder \endlink which (XXXimport)
*
* Make sure to read the detailed description of the
* \link flac_stream_encoder stream encoder module \endlink since the
* seekable stream encoder inherits much of its behavior.
*
* \note
* The "set" functions may only be called when the encoder is in the
* state FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED, i.e. after
* FLAC__seekable_stream_encoder_new() or FLAC__seekable_stream_encoder_finish(), but
* before FLAC__seekable_stream_encoder_init(). If this is the case they will
* return \c true, otherwise \c false.
*
* \note
* FLAC__seekable_stream_encoder_finish() resets all settings to the constructor
* defaults, including the callbacks.
*
* \{
*/
/** State values for a FLAC__SeekableStreamEncoder
*
* The encoder's state can be obtained by calling FLAC__seekable_stream_encoder_get_state().
*/
typedef enum {
FLAC__SEEKABLE_STREAM_ENCODER_OK = 0,
/**< The encoder is in the normal OK state. */
FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR,
/**< An error occurred in the underlying stream encoder;
* check FLAC__seekable_stream_encoder_get_stream_encoder_state().
*/
FLAC__SEEKABLE_STREAM_ENCODER_MEMORY_ALLOCATION_ERROR,
/**< Memory allocation failed. */
FLAC__SEEKABLE_STREAM_ENCODER_READ_ERROR,
/**< The read callback returned an error. */
FLAC__SEEKABLE_STREAM_ENCODER_SEEK_ERROR,
/**< The seek callback returned an error. */
FLAC__SEEKABLE_STREAM_ENCODER_ALREADY_INITIALIZED,
/**< FLAC__seekable_stream_encoder_init() was called when the encoder was
* already initialized, usually because
* FLAC__seekable_stream_encoder_finish() was not called.
*/
FLAC__SEEKABLE_STREAM_ENCODER_INVALID_CALLBACK,
/**< FLAC__seekable_stream_encoder_init() was called without all
* callbacks being set.
*/
FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED
/**< The encoder is in the uninitialized state. */
} FLAC__SeekableStreamEncoderState;
/** Maps a FLAC__SeekableStreamEncoderState to a C string.
*
* Using a FLAC__SeekableStreamEncoderState as the index to this array
* will give the string equivalent. The contents should not be modified.
*/
/* @@@@ double-check mapping */
extern const char * const FLAC__SeekableStreamEncoderStateString[];
/***********************************************************************
*
* class FLAC__SeekableStreamEncoder
*
***********************************************************************/
struct FLAC__SeekableStreamEncoderProtected;
struct FLAC__SeekableStreamEncoderPrivate;
/** The opaque structure definition for the seekable stream encoder type.
* See the \link flac_seekable_stream_encoder seekable stream encoder module \endlink
* for a detailed description.
*/
typedef struct {
struct FLAC__SeekableStreamEncoderProtected *protected_; /* avoid the C++ keyword 'protected' */
struct FLAC__SeekableStreamEncoderPrivate *private_; /* avoid the C++ keyword 'private' */
} FLAC__SeekableStreamEncoder;
/***********************************************************************
*
* Class constructor/destructor
*
***********************************************************************/
/** Create a new seekable stream encoder instance. The instance is created with
* default settings; see the individual FLAC__seekable_stream_encoder_set_*()
* functions for each setting's default.
*
* \retval FLAC__SeekableStreamEncoder*
* \c NULL if there was an error allocating memory, else the new instance.
*/
FLAC__SeekableStreamEncoder *FLAC__seekable_stream_encoder_new();
/** Free an encoder instance. Deletes the object pointed to by \a encoder.
*
* \param encoder A pointer to an existing encoder.
* \assert
* \code encoder != NULL \endcode
*/
void FLAC__seekable_stream_encoder_delete(FLAC__SeekableStreamEncoder *encoder);
/***********************************************************************
*
* Public class method prototypes
*
***********************************************************************/
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_streamable_subset().
*
* \default \c true
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_streamable_subset(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_do_mid_side_stereo().
*
* \default \c false
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_do_mid_side_stereo(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_loose_mid_side_stereo().
*
* \default \c false
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_loose_mid_side_stereo(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_channels().
*
* \default \c 2
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_channels(FLAC__SeekableStreamEncoder *encoder, unsigned value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_bits_per_sample().
*
* \warning
* Do not feed the encoder data that is wider than the value you
* set here or you will generate an invalid stream.
*
* \default \c 16
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_bits_per_sample(FLAC__SeekableStreamEncoder *encoder, unsigned value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_sample_rate().
*
* \default \c 44100
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_sample_rate(FLAC__SeekableStreamEncoder *encoder, unsigned value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_blocksize().
*
* \default \c 1152
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_blocksize(FLAC__SeekableStreamEncoder *encoder, unsigned value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_max_lpc_order().
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_max_lpc_order(FLAC__SeekableStreamEncoder *encoder, unsigned value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_qlp_coeff_precision().
*
* \note
* In the current implementation, qlp_coeff_precision + bits_per_sample must
* be less than 32.
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_qlp_coeff_precision(FLAC__SeekableStreamEncoder *encoder, unsigned value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_do_qlp_coeff_prec_search().
*
* \default \c false
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_do_escape_coding().
*
* \default \c false
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_do_escape_coding(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_do_exhaustive_model_search().
*
* \default \c false
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_do_exhaustive_model_search(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_min_residual_partition_order().
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_min_residual_partition_order(FLAC__SeekableStreamEncoder *encoder, unsigned value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_max_residual_partition_order().
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_max_residual_partition_order(FLAC__SeekableStreamEncoder *encoder, unsigned value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_rice_parameter_search_dist().
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_rice_parameter_search_dist(FLAC__SeekableStreamEncoder *encoder, unsigned value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_total_samples_estimate().
*
* \default \c 0
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_total_samples_estimate(FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 value);
/** This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_metadata().
*
* \default \c NULL, 0
* \param encoder An encoder instance to set.
* \param metadata See above.
* \param num_blocks See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_metadata(FLAC__SeekableStreamEncoder *encoder, FLAC__FileMetadata **metadata, unsigned num_blocks);
/** Set the seek callback.
* The supplied function will be called when the encoder needs to seek
* the output stream. The encoder will pass the absolute byte offset
* to seek to, 0 meaning the beginning of the stream.
*
* \note
* The callback is mandatory and must be set before initialization.
*
* \default \c NULL
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \code value != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__seekable_stream_encoder_set_seek_callback(FLAC__SeekableStreamEncoder *encoder, FLAC__SeekableStreamEncoderSeekStatus (*value)(const FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data));
/** Set the write callback.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_set_write_callback().
*
* \note
* The callback is mandatory and must be set before initialization.
*
* \default \c NULL
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \code value != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__stream_encoder_set_write_callback(FLAC__StreamEncoder *encoder, FLAC__StreamEncoderWriteStatus (*value)(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data));
/** Set the client data to be passed back to callbacks.
* This value will be supplied to callbacks in their \a client_data
* argument.
*
* \default \c NULL
* \param encoder An encoder instance to set.
* \param value See above.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* \c false if the encoder is already initialized, else \c true.
*/
FLAC__bool FLAC__stream_encoder_set_client_data(FLAC__StreamEncoder *encoder, void *value);
/** Get the current encoder state.
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__SeekableStreamEncoderState
* The current encoder state.
*/
FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_get_state(const FLAC__SeekableStreamEncoder *encoder);
/** Get the state of the underlying stream encoder.
* Useful when the seekable stream encoder state is
* \c FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR.
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__StreamEncoderState
* The stream encoder state.
*/
FLAC__StreamEncoderState FLAC__seekable_stream_encoder_get_stream_encoder_state(const FLAC__SeekableStreamEncoder *encoder);
/** Get the "streamable subset" flag.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_streamable_subset().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_streamable_subset().
*/
FLAC__bool FLAC__seekable_stream_encoder_get_streamable_subset(const FLAC__SeekableStreamEncoder *encoder);
/** Get the "mid/side stereo coding" flag.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_do_mid_side_stereo().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_get_do_mid_side_stereo().
*/
FLAC__bool FLAC__seekable_stream_encoder_get_do_mid_side_stereo(const FLAC__SeekableStreamEncoder *encoder);
/** Get the "adaptive mid/side switching" flag.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_loose_mid_side_stereo().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_loose_mid_side_stereo().
*/
FLAC__bool FLAC__seekable_stream_encoder_get_loose_mid_side_stereo(const FLAC__SeekableStreamEncoder *encoder);
/** Get the number of input channels being processed.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_channels().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_channels().
*/
unsigned FLAC__seekable_stream_encoder_get_channels(const FLAC__SeekableStreamEncoder *encoder);
/** Get the input sample resolution setting.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_bits_per_sample().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_bits_per_sample().
*/
unsigned FLAC__seekable_stream_encoder_get_bits_per_sample(const FLAC__SeekableStreamEncoder *encoder);
/** Get the input sample rate setting.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_sample_rate().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_sample_rate().
*/
unsigned FLAC__seekable_stream_encoder_get_sample_rate(const FLAC__SeekableStreamEncoder *encoder);
/** Get the blocksize setting.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_blocksize().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_blocksize().
*/
unsigned FLAC__seekable_stream_encoder_get_blocksize(const FLAC__SeekableStreamEncoder *encoder);
/** Get the maximum LPC order setting.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_max_lpc_order().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_max_lpc_order().
*/
unsigned FLAC__seekable_stream_encoder_get_max_lpc_order(const FLAC__SeekableStreamEncoder *encoder);
/** Get the quantized linear predictor coefficient precision setting.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_qlp_coeff_precision().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_qlp_coeff_precision().
*/
unsigned FLAC__seekable_stream_encoder_get_qlp_coeff_precision(const FLAC__SeekableStreamEncoder *encoder);
/** Get the qlp coefficient precision search flag.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_do_qlp_coeff_prec_search().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search().
*/
FLAC__bool FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__SeekableStreamEncoder *encoder);
/** Get the "escape coding" flag.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_do_escape_coding().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_do_escape_coding().
*/
FLAC__bool FLAC__seekable_stream_encoder_get_do_escape_coding(const FLAC__SeekableStreamEncoder *encoder);
/** Get the exhaustive model search flag.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_do_exhaustive_model_search().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_do_exhaustive_model_search().
*/
FLAC__bool FLAC__seekable_stream_encoder_get_do_exhaustive_model_search(const FLAC__SeekableStreamEncoder *encoder);
/** Get the minimum residual partition order setting.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_min_residual_partition_order().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_min_residual_partition_order().
*/
unsigned FLAC__seekable_stream_encoder_get_min_residual_partition_order(const FLAC__SeekableStreamEncoder *encoder);
/** Get maximum residual partition order setting.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_max_residual_partition_order().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_max_residual_partition_order().
*/
unsigned FLAC__seekable_stream_encoder_get_max_residual_partition_order(const FLAC__SeekableStreamEncoder *encoder);
/** Get the Rice parameter search distance setting.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_get_rice_parameter_search_dist().
*
* \param encoder An encoder instance to query.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__bool
* See FLAC__seekable_stream_encoder_set_rice_parameter_search_dist().
*/
unsigned FLAC__seekable_stream_encoder_get_rice_parameter_search_dist(const FLAC__SeekableStreamEncoder *encoder);
/** Initialize the encoder instance.
* Should be called after FLAC__seekable_stream_encoder_new() and
* FLAC__seekable_stream_encoder_set_*() but before FLAC__seekable_stream_encoder_process()
* or FLAC__seekable_stream_encoder_process_interleaved(). Will set and return
* the encoder state, which will be FLAC__SEEKABLE_STREAM_ENCODER_OK if
* initialization succeeded.
*
* The call to FLAC__seekable_stream_encoder_init() currently will also immediately
* call the write callback with the \c fLaC signature and all the encoded
* metadata.
*
* \param encoder An uninitialized encoder instance.
* \assert
* \code encoder != NULL \endcode
* \retval FLAC__SeekableStreamEncoderState
* \c FLAC__SEEKABLE_STREAM_ENCODER_OK if initialization was successful; see
* FLAC__SeekableStreamEncoderState for the meanings of other return values.
*/
FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_init(FLAC__SeekableStreamEncoder *encoder);
/** Finish the encoding process.
* Flushes the encoding buffer, releases resources, resets the encoder
* settings to their defaults, and returns the encoder state to
* FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED.
*
* In the event of a prematurely-terminated encode, it is not strictly
* necessary to call this immediately before FLAC__seekable_stream_encoder_delete()
* but it is good practice to match every FLAC__seekable_stream_encoder_init()
* with a FLAC__seekable_stream_encoder_finish().
*
* \param encoder An uninitialized encoder instance.
* \assert
* \code encoder != NULL \endcode
*/
void FLAC__seekable_stream_encoder_finish(FLAC__SeekableStreamEncoder *encoder);
/** Submit data for encoding.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_process().
*
* \param encoder An initialized encoder instance in the OK state.
* \param buffer An array of pointers to each channel's signal.
* \param samples The number of samples in one channel.
* \assert
* \code encoder != NULL \endcode
* \code FLAC__seekable_stream_encoder_get_state(encoder) == FLAC__SEEKABLE_STREAM_ENCODER_OK \endcode
* \retval FLAC__bool
* \c true if successful, else \c false; in this case, check the
* encoder state with FLAC__seekable_stream_encoder_get_state() to see what
* went wrong.
*/
FLAC__bool FLAC__seekable_stream_encoder_process(FLAC__SeekableStreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples);
/** Submit data for encoding.
* This is inherited from FLAC__StreamEncoder; see
* FLAC__stream_encoder_process_interleaved().
*
* \param encoder An initialized encoder instance in the OK state.
* \param buffer An array of channel-interleaved data (see above).
* \param samples The number of samples in one channel, the same as for
* FLAC__seekable_stream_encoder_process(). For example, if
* encoding two channels, \c 1000 \a samples corresponds
* to a \a buffer of 2000 values.
* \assert
* \code encoder != NULL \endcode
* \code FLAC__seekable_stream_encoder_get_state(encoder) == FLAC__SEEKABLE_STREAM_ENCODER_OK \endcode
* \retval FLAC__bool
* \c true if successful, else \c false; in this case, check the
* encoder state with FLAC__seekable_stream_encoder_get_state() to see what
* went wrong.
*/
FLAC__bool FLAC__seekable_stream_encoder_process_interleaved(FLAC__SeekableStreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples);
/* \} */
#ifdef __cplusplus
}
#endif
#endif

23
include/FLAC/stream_encoder.h
View File

@ -41,11 +41,18 @@ extern "C" {
* \ingroup flac
*
* \brief
* This module describes the single encoder layer provided by libFLAC.
* This module describes the two encoder layers provided by libFLAC.
*
* Currently there is only one level of encoder implementation which is at
* the stream level. There is currently no file encoder because seeking
* within a file while encoding seemed like too obscure a feature.
* For encoding FLAC streams, libFLAC provides two layers of access. The
* lowest layer is stream-level encoding, and the highest is file-level
* encoding. The interfaces are described in the \link flac_stream_encoder
* stream encoder \endlink and \link flac_file_encoder file encoder \endlink
* modules respectively. Typically you will choose the highest layer that
* your output source will support.
*
* The stream encoder relies on callbacks for writing the data and
* metadata. The file encoder provides these callbacks internally and you
* need only supply the filename.
*/
/** \defgroup flac_stream_encoder FLAC/stream_encoder.h: stream encoder interface
@ -574,6 +581,13 @@ FLAC__bool FLAC__stream_encoder_set_metadata(FLAC__StreamEncoder *encoder, FLAC_
* audio frames and the data is not guaranteed to be aligned on frame or
* metadata block boundaries.
*
* The only duty of the callback is to write out the \a bytes worth of data
* in \a buffer to the current position in the output stream. The arguments
* \a samples and \a current_frame are purely informational. If \a samples
* is greater than \c 0, then \a current_frame will hold the current frame
* number that is being written; otherwise, the write callback is being called
* to write metadata.
*
* \note
* The callback is mandatory and must be set before initialization.
*
@ -848,7 +862,6 @@ FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC
* sample-aligned, i.e. the first value should be channel0_sample0
* and the last value channelN_sampleM.
*
*
* \param encoder An initialized encoder instance in the OK state.
* \param buffer An array of channel-interleaved data (see above).
* \param samples The number of samples in one channel, the same as for

2
src/libFLAC/Makefile.am
View File

@ -51,6 +51,7 @@ libFLAC_la_SOURCES = \
cpu.c \
crc.c \
file_decoder.c \
file_encoder.c \
fixed.c \
format.c \
lpc.c \
@ -59,6 +60,7 @@ libFLAC_la_SOURCES = \
metadata_iterators.c \
metadata_object.c \
seekable_stream_decoder.c \
seekable_stream_encoder.c \
stream_decoder.c \
stream_encoder.c \
stream_encoder_framing.c

2
src/libFLAC/Makefile.lite
View File

@ -50,6 +50,7 @@ OBJS = $(ASM_OBJS) \
cpu.o \
crc.o \
file_decoder.o \
file_encoder.o \
fixed.o \
format.o \
lpc.o \
@ -58,6 +59,7 @@ OBJS = $(ASM_OBJS) \
metadata_iterators.o \
metadata_object.o \
seekable_stream_decoder.o \
seekable_stream_encoder.o \
stream_decoder.o \
stream_encoder.o \
stream_encoder_framing.o

2
src/libFLAC/Makefile.vc
View File

@ -34,6 +34,7 @@ C_FILES= \
cpu.c \
crc.c \
file_decoder.c \
file_encoder.c \
fixed.c \
format.c \
lpc.c \
@ -42,6 +43,7 @@ C_FILES= \
metadata_iterators.c \
metadata_object.c \
seekable_stream_decoder.c \
seekable_stream_encoder.c \
stream_decoder.c \
stream_encoder.c \
stream_encoder_framing.c

740
src/libFLAC/file_encoder.c Normal file
View File

@ -0,0 +1,740 @@
/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h> /* for malloc() */
#include <string.h> /* for memcpy() */
#include "FLAC/assert.h"
#include "protected/file_encoder.h"
#include "protected/seekable_stream_encoder.h"
/***********************************************************************
*
* Private class method prototypes
*
***********************************************************************/
static void set_defaults_(FLAC__FileEncoder *encoder);
static FLAC__StreamEncoderWriteStatus file_encoder_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data);
static void file_encoder_metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data);
/***********************************************************************
*
* Private class data
*
***********************************************************************/
typedef struct FLAC__FileEncoderPrivate {
FILE *file;
char *filename;
FLAC__SeekableStreamEncoder *seekable_stream_encoder;
} FLAC__FileEncoderPrivate;
/***********************************************************************
*
* Public static class data
*
***********************************************************************/
const char * const FLAC__FileEncoderStateString[] = {
"FLAC__FILE_ENCODER_OK",
"FLAC__FILE_ENCODER_NO_FILENAME",
"FLAC__FILE_ENCODER_SEEKABLE_STREAM_ENCODER_ERROR",
"FLAC__FILE_ENCODER_FATAL_ERROR_WHILE_WRITING",
"FLAC__FILE_ENCODER_ERROR_OPENING_FILE",
"FLAC__FILE_ENCODER_MEMORY_ALLOCATION_ERROR",
"FLAC__FILE_ENCODER_ALREADY_INITIALIZED",
"FLAC__FILE_ENCODER_UNINITIALIZED"
};
/***********************************************************************
*
* Class constructor/destructor
*
***********************************************************************/
FLAC__FileEncoder *FLAC__file_encoder_new()
{
FLAC__FileEncoder *encoder;
FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
encoder = (FLAC__FileEncoder*)malloc(sizeof(FLAC__FileEncoder));
if(encoder == 0) {
return 0;
}
encoder->protected_ = (FLAC__FileEncoderProtected*)malloc(sizeof(FLAC__FileEncoderProtected));
if(encoder->protected_ == 0) {
free(encoder);
return 0;
}
encoder->private_ = (FLAC__FileEncoderPrivate*)malloc(sizeof(FLAC__FileEncoderPrivate));
if(encoder->private_ == 0) {
free(encoder->protected_);
free(encoder);
return 0;
}
encoder->private_->seekable_stream_encoder = FLAC__seekable_stream_encoder_new();
if(0 == encoder->private_->seekable_stream_encoder) {
free(encoder->private_);
free(encoder->protected_);
free(encoder);
return 0;
}
encoder->private_->file = 0;
set_defaults_(encoder);
encoder->protected_->state = FLAC__FILE_ENCODER_UNINITIALIZED;
return encoder;
}
void FLAC__file_encoder_delete(FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
(void)FLAC__file_encoder_finish(encoder);
FLAC__seekable_stream_encoder_delete(encoder->private_->seekable_stream_encoder);
free(encoder->private_);
free(encoder->protected_);
free(encoder);
}
/***********************************************************************
*
* Public class methods
*
***********************************************************************/
FLAC__FileEncoderState FLAC__file_encoder_init(FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return encoder->protected_->state = FLAC__FILE_ENCODER_ALREADY_INITIALIZED;
if(0 == encoder->private_->filename)
return encoder->protected_->state = FLAC__FILE_ENCODER_NO_FILENAME;
encoder->private_->file = fopen(encoder->private_->filename, "wb");
if(encoder->private_->file == 0)
return encoder->protected_->state = FLAC__FILE_ENCODER_ERROR_OPENING_FILE;
FLAC__seekable_stream_encoder_set_write_callback(encoder->private_->seekable_stream_encoder, write_callback_);
FLAC__seekable_stream_encoder_set_metadata_callback(encoder->private_->seekable_stream_encoder, metadata_callback_);
FLAC__seekable_stream_encoder_set_client_data(encoder->private_->seekable_stream_encoder, encoder);
if(FLAC__seekable_seekable_stream_encoder_init(encoder->private_->seekable_stream_encoder) != FLAC__SEEKABLE_STREAM_ENCODER_OK)
return encoder->protected_->state = FLAC__FILE_ENCODER_SEEKABLE_STREAM_ENCODER_ERROR;
return decoder->protected_->state = FLAC__FILE_ENCODER_OK;
}
void FLAC__file_encoder_finish(FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
if(encoder->protected_->state == FLAC__FILE_ENCODER_UNINITIALIZED)
return;
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(0 != encoder->private_->file) {
fclose(encoder->private_->file);
encoder->private_->file = 0;
}
if(0 != encoder->private_->filename) {
free(encoder->private_->filename);
encoder->private_->filename = 0;
}
set_defaults_(encoder);
encoder->protected_->state = FLAC__FILE_ENCODER_UNINITIALIZED;
return FLAC__seekable_stream_encoder_finish(encoder->private_->seekable_stream_encoder);
}
FLAC__bool FLAC__file_encoder_set_streamable_subset(FLAC__FileEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_streamable_subset(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_do_mid_side_stereo(FLAC__FileEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_do_mid_side_stereo(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_loose_mid_side_stereo(FLAC__FileEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_loose_mid_side_stereo(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_channels(FLAC__FileEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_channels(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_bits_per_sample(FLAC__FileEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_bits_per_sample(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_sample_rate(FLAC__FileEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_sample_rate(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_blocksize(FLAC__FileEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_blocksize(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_max_lpc_order(FLAC__FileEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_max_lpc_order(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_qlp_coeff_precision(FLAC__FileEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_qlp_coeff_precision(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_do_qlp_coeff_prec_search(FLAC__FileEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_do_escape_coding(FLAC__FileEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_do_escape_coding(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_do_exhaustive_model_search(FLAC__FileEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_do_exhaustive_model_search(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_min_residual_partition_order(FLAC__FileEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_min_residual_partition_order(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_max_residual_partition_order(FLAC__FileEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_max_residual_partition_order(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_rice_parameter_search_dist(FLAC__FileEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_rice_parameter_search_dist(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_total_samples_estimate(FLAC__FileEncoder *encoder, FLAC__uint64 value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_total_samples_estimate(encoder->private_->seekable_stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_metadata(FLAC__FileEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_encoder_set_metadata(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__file_encoder_set_filename(FLAC__FileEncoder *encoder, const char *value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != value);
if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
return false;
if(0 != encoder->private_->filename) {
free(encoder->private_->filename);
encoder->private_->filename = 0;
}
if(0 == (encoder->private_->filename = (char*)malloc(strlen(value)+1))) {
encoder->protected_->state = FLAC__FILE_ENCODER_MEMORY_ALLOCATION_ERROR;
return false;
}
strcpy(encoder->private_->filename, value);
return true;
}
FLAC__FileEncoderState FLAC__file_encoder_get_state(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->state;
}
FLAC__FileEncoderState FLAC__file_encoder_get_seekable_stream_encoder_state(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_state(encoder->private_->seekable_stream_encoder);
}
FLAC__bool FLAC__file_encoder_get_streamable_subset(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_streamable_subset(encoder->private_->seekable_stream_encoder);
}
FLAC__bool FLAC__file_encoder_get_do_mid_side_stereo(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_do_mid_side_stereo(encoder->private_->seekable_stream_encoder);
}
FLAC__bool FLAC__file_encoder_get_loose_mid_side_stereo(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_loose_mid_side_stereo(encoder->private_->seekable_stream_encoder);
}
unsigned FLAC__file_encoder_get_channels(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_channels(encoder->private_->seekable_stream_encoder);
}
unsigned FLAC__file_encoder_get_bits_per_sample(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_bits_per_sample(encoder->private_->seekable_stream_encoder);
}
unsigned FLAC__file_encoder_get_sample_rate(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_sample_rate(encoder->private_->seekable_stream_encoder);
}
unsigned FLAC__file_encoder_get_blocksize(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_blocksize(encoder->private_->seekable_stream_encoder);
}
unsigned FLAC__file_encoder_get_max_lpc_order(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_max_lpc_order(encoder->private_->seekable_stream_encoder);
}
unsigned FLAC__file_encoder_get_qlp_coeff_precision(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_qlp_coeff_precision(encoder->private_->seekable_stream_encoder);
}
FLAC__bool FLAC__file_encoder_get_do_qlp_coeff_prec_search(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search(encoder->private_->seekable_stream_encoder);
}
FLAC__bool FLAC__file_encoder_get_do_escape_coding(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_do_escape_coding(encoder->private_->seekable_stream_encoder);
}
FLAC__bool FLAC__file_encoder_get_do_exhaustive_model_search(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_do_exhaustive_model_search(encoder->private_->seekable_stream_encoder);
}
unsigned FLAC__file_encoder_get_min_residual_partition_order(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_min_residual_partition_order(encoder->private_->seekable_stream_encoder);
}
unsigned FLAC__file_encoder_get_max_residual_partition_order(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_max_residual_partition_order(encoder->private_->seekable_stream_encoder);
}
unsigned FLAC__file_encoder_get_rice_parameter_search_dist(const FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_get_rice_parameter_search_dist(encoder->private_->seekable_stream_encoder);
}
FLAC__bool FLAC__file_encoder_process(FLAC__FileEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_process(encoder->private_->seekable_stream_encoder, buffer, samples);
}
/* 'samples' is channel-wide samples, e.g. for 1 second at 44100Hz, 'samples' = 44100 regardless of the number of channels */
FLAC__bool FLAC__file_encoder_process_interleaved(FLAC__FileEncoder *encoder, const FLAC__int32 buffer[], unsigned samples)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__seekable_stream_encoder_process_interleaved(encoder->private_->seekable_stream_encoder, buffer, samples);
}
/***********************************************************************
*
* Private class methods
*
***********************************************************************/
void set_defaults_(FLAC__FileEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
encoder->protected_->filename = 0;
}
FLAC__StreamEncoderWriteStatus file_encoder_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data)
{
FLAC__FileEncoder *file_encoder = (FLAC__FileEncoder*)client_data;
/* mark the current seek point if hit (if stream_offset == 0 that means we're still writing metadata and haven't hit the first frame yet) */
if(file_encoder->private_->stream_offset > 0 && file_encoder->private_->seek_table.num_points > 0) {
FLAC__uint64 current_sample = (FLAC__uint64)current_frame * (FLAC__uint64)FLAC__stream_encoder_get_blocksize(encoder), test_sample;
unsigned i;
for(i = file_encoder->private_->first_seek_point_to_check; i < file_encoder->private_->seek_table.num_points; i++) {
test_sample = file_encoder->private_->seek_table.points[i].sample_number;
if(test_sample > current_sample) {
break;
}
else if(test_sample == current_sample) {
file_encoder->private_->seek_table.points[i].stream_offset = file_encoder->private_->bytes_written - file_encoder->private_->stream_offset;
file_encoder->private_->seek_table.points[i].frame_samples = FLAC__stream_encoder_get_blocksize(encoder);
file_encoder->private_->first_seek_point_to_check++;
break;
}
else {
file_encoder->private_->first_seek_point_to_check++;
}
}
}
file_encoder->private_->bytes_written += bytes;
file_encoder->private_->samples_written += samples;
file_encoder->private_->current_frame = current_frame;
if(samples && file_encoder->private_->verbose && file_encoder->private_->total_samples_to_encode > 0 && !(current_frame & mask))
print_stats(file_encoder->private_);
if(file_encoder->private_->verify) {
file_encoder->private_->verify_fifo.encoded_signal = buffer;
file_encoder->private_->verify_fifo.encoded_bytes = bytes;
if(file_encoder->private_->verify_fifo.into_frames) {
if(!FLAC__stream_decoder_process_one_frame(file_encoder->private_->verify_fifo.decoder)) {
file_encoder->private_->verify_fifo.result = FLAC__VERIFY_FAILED_IN_FRAME;
return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
}
}
else {
if(!FLAC__stream_decoder_process_metadata(file_encoder->private_->verify_fifo.decoder)) {
file_encoder->private_->verify_fifo.result = FLAC__VERIFY_FAILED_IN_METADATA;
return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
}
}
}
#ifdef FLAC__HAS_OGG
if(file_encoder->private_->use_ogg) {
ogg_packet op;
memset(&op, 0, sizeof(op));
op.packet = (unsigned char *)buffer;
op.granulepos = file_encoder->private_->samples_written - 1;
/*@@@ WATCHOUT:
* this depends on the behavior of libFLAC that we will get one
* write_callback first with all the metadata (and 'samples'
* will be 0), then one write_callback for each frame.
*/
op.packetno = (samples == 0? -1 : (int)file_encoder->private_->current_frame);
op.bytes = bytes;
if (file_encoder->private_->bytes_written == bytes)
op.b_o_s = 1;
if (file_encoder->private_->total_samples_to_encode == file_encoder->private_->samples_written)
op.e_o_s = 1;
ogg_stream_packetin(&file_encoder->private_->ogg.os, &op);
while(ogg_stream_pageout(&file_encoder->private_->ogg.os, &file_encoder->private_->ogg.og) != 0) {
int written;
written = fwrite(file_encoder->private_->ogg.og.header, 1, file_encoder->private_->ogg.og.header_len, file_encoder->private_->fout);
if (written != file_encoder->private_->ogg.og.header_len)
return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
written = fwrite(file_encoder->private_->ogg.og.body, 1, file_encoder->private_->ogg.og.body_len, file_encoder->private_->fout);
if (written != file_encoder->private_->ogg.og.body_len)
return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
}
return FLAC__STREAM_ENCODER_WRITE_OK;
}
else
#endif
{
if(fwrite(buffer, sizeof(FLAC__byte), bytes, file_encoder->private_->fout) == bytes)
return FLAC__STREAM_ENCODER_WRITE_OK;
else
return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
}
}
void file_encoder_metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data)
{
file_encoder->private_ *file_encoder->private_ = (file_encoder->private_ *)client_data;
FLAC__byte b;
FILE *f = file_encoder->private_->fout;
const FLAC__uint64 samples = metadata->data.stream_info.total_samples;
const unsigned min_framesize = metadata->data.stream_info.min_framesize;
const unsigned max_framesize = metadata->data.stream_info.max_framesize;
FLAC__ASSERT(metadata->type == FLAC__METADATA_TYPE_STREAMINFO);
/*
* If we are writing to an ogg stream, there is no need to go back
* and update the STREAMINFO or SEEKTABLE blocks; the values we would
* update are not necessary with Ogg as the transport. We can't do
* it reliably anyway without knowing the Ogg structure.
*/
#ifdef FLAC__HAS_OGG
if(file_encoder->private_->use_ogg)
return;
#endif
/*
* we get called by the encoder when the encoding process has
* finished so that we can update the STREAMINFO and SEEKTABLE
* blocks.
*/
(void)encoder; /* silence compiler warning about unused parameter */
if(f != stdout) {
fclose(file_encoder->private_->fout);
if(0 == (f = fopen(file_encoder->private_->outfilename, "r+b")))
return;
}
/* all this is based on intimate knowledge of the stream header
* layout, but a change to the header format that would break this
* would also break all streams encoded in the previous format.
*/
if(-1 == fseek(f, 26, SEEK_SET)) goto end_;
fwrite(metadata->data.stream_info.md5sum, 1, 16, f);
/* if we get this far we know we can seek so no need to check the
* return value from fseek()
*/
fseek(f, 21, SEEK_SET);
if(fread(&b, 1, 1, f) != 1) goto framesize_;
fseek(f, 21, SEEK_SET);
b = (b & 0xf0) | (FLAC__byte)((samples >> 32) & 0x0F);
if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
b = (FLAC__byte)((samples >> 24) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
b = (FLAC__byte)((samples >> 16) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
b = (FLAC__byte)((samples >> 8) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
b = (FLAC__byte)(samples & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
framesize_:
fseek(f, 12, SEEK_SET);
b = (FLAC__byte)((min_framesize >> 16) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
b = (FLAC__byte)((min_framesize >> 8) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
b = (FLAC__byte)(min_framesize & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
b = (FLAC__byte)((max_framesize >> 16) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
b = (FLAC__byte)((max_framesize >> 8) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
b = (FLAC__byte)(max_framesize & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
seektable_:
if(file_encoder->private_->seek_table.num_points > 0) {
long pos;
unsigned i;
/* convert any unused seek points to placeholders */
for(i = 0; i < file_encoder->private_->seek_table.num_points; i++) {
if(file_encoder->private_->seek_table.points[i].sample_number == FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER)
break;
else if(file_encoder->private_->seek_table.points[i].frame_samples == 0)
file_encoder->private_->seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
}
/* the offset of the seek table data 'pos' should be after then stream sync and STREAMINFO block and SEEKTABLE header */
pos = (FLAC__STREAM_SYNC_LEN + FLAC__STREAM_METADATA_IS_LAST_LEN + FLAC__STREAM_METADATA_TYPE_LEN + FLAC__STREAM_METADATA_LENGTH_LEN) / 8;
pos += metadata->length;
pos += (FLAC__STREAM_METADATA_IS_LAST_LEN + FLAC__STREAM_METADATA_TYPE_LEN + FLAC__STREAM_METADATA_LENGTH_LEN) / 8;
fseek(f, pos, SEEK_SET);
for(i = 0; i < file_encoder->private_->seek_table.num_points; i++) {
if(!write_big_endian_uint64(f, file_encoder->private_->seek_table.points[i].sample_number)) goto end_;
if(!write_big_endian_uint64(f, file_encoder->private_->seek_table.points[i].stream_offset)) goto end_;
if(!write_big_endian_uint16(f, (FLAC__uint16)file_encoder->private_->seek_table.points[i].frame_samples)) goto end_;
}
}
end_:
fclose(f);
return;
}

2
src/libFLAC/include/protected/Makefile.am
View File

@ -19,6 +19,8 @@
noinst_HEADERS = \
all.h \
file_decoder.h \
file_encoder.h \
seekable_stream_decoder.h \
seekable_stream_encoder.h \
stream_decoder.h \
stream_encoder.h

2
src/libFLAC/include/protected/all.h
View File

@ -21,7 +21,9 @@
#define FLAC__PROTECTED__ALL_H
#include "file_decoder.h"
#include "file_encoder.h"
#include "seekable_stream_decoder.h"
#include "seekable_stream_encoder.h"
#include "stream_decoder.h"
#include "stream_encoder.h"

29
src/libFLAC/include/protected/file_encoder.h Normal file
View File

@ -0,0 +1,29 @@
/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2001,2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef FLAC__PROTECTED__FILE_ENCODER_H
#define FLAC__PROTECTED__FILE_ENCODER_H
#include "FLAC/file_encoder.h"
typedef struct FLAC__FileEncoderProtected {
FLAC__FileEncoderState state;
} FLAC__FileEncoderProtected;
#endif

29
src/libFLAC/include/protected/seekable_stream_encoder.h Normal file
View File

@ -0,0 +1,29 @@
/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef FLAC__PROTECTED__SEEKABLE_STREAM_ENCODER_H
#define FLAC__PROTECTED__SEEKABLE_STREAM_ENCODER_H
#include "FLAC/seekable_stream_encoder.h"
typedef struct FLAC__SeekableStreamEncoderProtected {
FLAC__SeekableStreamEncoderState state;
} FLAC__SeekableStreamEncoderProtected;
#endif

749
src/libFLAC/seekable_stream_encoder.c Normal file
View File

@ -0,0 +1,749 @@
/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h> /* for malloc() */
#include <string.h> /* for memcpy() */
#include "FLAC/assert.h"
#include "protected/seekable_stream_encoder.h"
#include "protected/stream_encoder.h"
/***********************************************************************
*
* Private class method prototypes
*
***********************************************************************/
static void set_defaults_(FLAC__SeekableStreamEncoder *encoder);
static FLAC__StreamEncoderWriteStatus write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data);
static void metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data);
/***********************************************************************
*
* Private class data
*
***********************************************************************/
typedef struct FLAC__SeekableStreamEncoderPrivate {
FILE *file;
char *filename;
FLAC__StreamEncoder *stream_encoder;
} FLAC__SeekableStreamEncoderPrivate;
/***********************************************************************
*
* Public static class data
*
***********************************************************************/
const char * const FLAC__SeekableStreamEncoderStateString[] = {
"FLAC__SEEKABLE_STREAM_ENCODER_OK",
"FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR",
"FLAC__SEEKABLE_STREAM_ENCODER_ERROR_OPENING_FILE",
"FLAC__SEEKABLE_STREAM_ENCODER_MEMORY_ALLOCATION_ERROR",
"FLAC__SEEKABLE_STREAM_ENCODER_ALREADY_INITIALIZED",
"FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED"
};
/***********************************************************************
*
* Class constructor/destructor
*
***********************************************************************/
FLAC__SeekableStreamEncoder *FLAC__seekable_stream_encoder_new()
{
FLAC__SeekableStreamEncoder *encoder;
FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
encoder = (FLAC__SeekableStreamEncoder*)malloc(sizeof(FLAC__SeekableStreamEncoder));
if(encoder == 0) {
return 0;
}
encoder->protected_ = (FLAC__SeekableStreamEncoderProtected*)malloc(sizeof(FLAC__SeekableStreamEncoderProtected));
if(encoder->protected_ == 0) {
free(encoder);
return 0;
}
encoder->private_ = (FLAC__SeekableStreamEncoderPrivate*)malloc(sizeof(FLAC__SeekableStreamEncoderPrivate));
if(encoder->private_ == 0) {
free(encoder->protected_);
free(encoder);
return 0;
}
encoder->private_->stream_encoder = FLAC__stream_encoder_new();
if(0 == encoder->private_->stream_encoder) {
free(encoder->private_);
free(encoder->protected_);
free(encoder);
return 0;
}
set_defaults_(encoder);
encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED;
return encoder;
}
void FLAC__seekable_stream_encoder_delete(FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
(void)FLAC__seekable_stream_encoder_finish(encoder);
FLAC__stream_encoder_delete(encoder->private_->stream_encoder);
free(encoder->private_);
free(encoder->protected_);
free(encoder);
}
/***********************************************************************
*
* Public class methods
*
***********************************************************************/
FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_init(FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_ALREADY_INITIALIZED;
if(0 == encoder->private_->filename)
return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_NO_FILENAME;
encoder->private_->file = fopen(encoder->private_->filename, "wb");
if(encoder->private_->file == 0)
return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_ERROR_OPENING_FILE;
FLAC__stream_encoder_set_write_callback(encoder->private_->stream_encoder, write_callback_);
FLAC__stream_encoder_set_metadata_callback(encoder->private_->stream_encoder, metadata_callback_);
FLAC__stream_encoder_set_client_data(encoder->private_->stream_encoder, encoder);
if(FLAC__stream_encoder_init(encoder->private_->stream_encoder) != FLAC__STREAM_ENCODER_OK)
return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR;
return decoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_OK;
}
void FLAC__seekable_stream_encoder_finish(FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
if(encoder->protected_->state == FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return;
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(0 != encoder->private_->file) {
fclose(encoder->private_->file);
encoder->private_->file = 0;
}
if(0 != encoder->private_->filename) {
free(encoder->private_->filename);
encoder->private_->filename = 0;
}
set_defaults_(encoder);
encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED;
return FLAC__stream_encoder_finish(encoder->private_->stream_encoder);
}
FLAC__bool FLAC__seekable_stream_encoder_set_streamable_subset(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_streamable_subset(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_do_mid_side_stereo(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_do_mid_side_stereo(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_loose_mid_side_stereo(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_loose_mid_side_stereo(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_channels(FLAC__SeekableStreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_channels(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_bits_per_sample(FLAC__SeekableStreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_bits_per_sample(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_sample_rate(FLAC__SeekableStreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_sample_rate(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_blocksize(FLAC__SeekableStreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_blocksize(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_max_lpc_order(FLAC__SeekableStreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_max_lpc_order(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_qlp_coeff_precision(FLAC__SeekableStreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_qlp_coeff_precision(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_do_qlp_coeff_prec_search(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_do_escape_coding(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_do_escape_coding(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_do_exhaustive_model_search(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_do_exhaustive_model_search(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_min_residual_partition_order(FLAC__SeekableStreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_min_residual_partition_order(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_max_residual_partition_order(FLAC__SeekableStreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_max_residual_partition_order(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_rice_parameter_search_dist(FLAC__SeekableStreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_rice_parameter_search_dist(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_total_samples_estimate(FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_total_samples_estimate(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_metadata(FLAC__SeekableStreamEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_metadata(encoder->private_->stream_encoder, value);
}
FLAC__bool FLAC__seekable_stream_encoder_set_seek_callback(FLAC__SeekableStreamEncoder *encoder, FLAC__SeekableStreamEncoderSeekStatus (*value)(const FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data))
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->private_->seek_callback = value;
return true;
}
FLAC__bool FLAC__stream_encoder_set_write_callback(FLAC__StreamEncoder *encoder, FLAC__StreamEncoderWriteStatus (*value)(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data))
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->private_->write_callback = value;
return true;
}
FLAC__bool FLAC__stream_encoder_set_client_data(FLAC__StreamEncoder *encoder, void *value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->private_->client_data = value;
return true;
}
FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_get_state(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->state;
}
FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_get_stream_encoder_state(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_state(encoder->private_->stream_encoder);
}
FLAC__bool FLAC__seekable_stream_encoder_get_streamable_subset(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_streamable_subset(encoder->private_->stream_encoder);
}
FLAC__bool FLAC__seekable_stream_encoder_get_do_mid_side_stereo(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_do_mid_side_stereo(encoder->private_->stream_encoder);
}
FLAC__bool FLAC__seekable_stream_encoder_get_loose_mid_side_stereo(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_loose_mid_side_stereo(encoder->private_->stream_encoder);
}
unsigned FLAC__seekable_stream_encoder_get_channels(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_channels(encoder->private_->stream_encoder);
}
unsigned FLAC__seekable_stream_encoder_get_bits_per_sample(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_bits_per_sample(encoder->private_->stream_encoder);
}
unsigned FLAC__seekable_stream_encoder_get_sample_rate(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_sample_rate(encoder->private_->stream_encoder);
}
unsigned FLAC__seekable_stream_encoder_get_blocksize(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_blocksize(encoder->private_->stream_encoder);
}
unsigned FLAC__seekable_stream_encoder_get_max_lpc_order(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_max_lpc_order(encoder->private_->stream_encoder);
}
unsigned FLAC__seekable_stream_encoder_get_qlp_coeff_precision(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_qlp_coeff_precision(encoder->private_->stream_encoder);
}
FLAC__bool FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_do_qlp_coeff_prec_search(encoder->private_->stream_encoder);
}
FLAC__bool FLAC__seekable_stream_encoder_get_do_escape_coding(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_do_escape_coding(encoder->private_->stream_encoder);
}
FLAC__bool FLAC__seekable_stream_encoder_get_do_exhaustive_model_search(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_do_exhaustive_model_search(encoder->private_->stream_encoder);
}
unsigned FLAC__seekable_stream_encoder_get_min_residual_partition_order(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_min_residual_partition_order(encoder->private_->stream_encoder);
}
unsigned FLAC__seekable_stream_encoder_get_max_residual_partition_order(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_max_residual_partition_order(encoder->private_->stream_encoder);
}
unsigned FLAC__seekable_stream_encoder_get_rice_parameter_search_dist(const FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_get_rice_parameter_search_dist(encoder->private_->stream_encoder);
}
FLAC__bool FLAC__seekable_stream_encoder_process(FLAC__SeekableStreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_process(encoder->private_->stream_encoder, buffer, samples);
}
/* 'samples' is channel-wide samples, e.g. for 1 second at 44100Hz, 'samples' = 44100 regardless of the number of channels */
FLAC__bool FLAC__seekable_stream_encoder_process_interleaved(FLAC__SeekableStreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
return FLAC__stream_encoder_process_interleaved(encoder->private_->stream_encoder, buffer, samples);
}
/***********************************************************************
*
* Private class methods
*
***********************************************************************/
void set_defaults_(FLAC__SeekableStreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
encoder->protected_->filename = 0;
}
FLAC__StreamEncoderWriteStatus write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data)
{
FLAC__SeekableStreamEncoder *seekable_stream_encoder = (FLAC__SeekableStreamEncoder*)client_data;
/* mark the current seek point if hit (if stream_offset == 0 that means we're still writing metadata and haven't hit the first frame yet) */
if(seekable_stream_encoder->private_->stream_offset > 0 && seekable_stream_encoder->private_->seek_table.num_points > 0) {
FLAC__uint64 current_sample = (FLAC__uint64)current_frame * (FLAC__uint64)FLAC__stream_encoder_get_blocksize(encoder), test_sample;
unsigned i;
for(i = seekable_stream_encoder->private_->first_seek_point_to_check; i < seekable_stream_encoder->private_->seek_table.num_points; i++) {
test_sample = seekable_stream_encoder->private_->seek_table.points[i].sample_number;
if(test_sample > current_sample) {
break;
}
else if(test_sample == current_sample) {
seekable_stream_encoder->private_->seek_table.points[i].stream_offset = seekable_stream_encoder->private_->bytes_written - seekable_stream_encoder->private_->stream_offset;
seekable_stream_encoder->private_->seek_table.points[i].frame_samples = FLAC__stream_encoder_get_blocksize(encoder);
seekable_stream_encoder->private_->first_seek_point_to_check++;
break;
}
else {
seekable_stream_encoder->private_->first_seek_point_to_check++;
}
}
}
seekable_stream_encoder->private_->bytes_written += bytes;
seekable_stream_encoder->private_->samples_written += samples;
seekable_stream_encoder->private_->current_frame = current_frame;
if(samples && seekable_stream_encoder->private_->verbose && seekable_stream_encoder->private_->total_samples_to_encode > 0 && !(current_frame & mask))
print_stats(seekable_stream_encoder->private_);
if(seekable_stream_encoder->private_->verify) {
seekable_stream_encoder->private_->verify_fifo.encoded_signal = buffer;
seekable_stream_encoder->private_->verify_fifo.encoded_bytes = bytes;
if(seekable_stream_encoder->private_->verify_fifo.into_frames) {
if(!FLAC__stream_decoder_process_one_frame(seekable_stream_encoder->private_->verify_fifo.decoder)) {
seekable_stream_encoder->private_->verify_fifo.result = FLAC__VERIFY_FAILED_IN_FRAME;
return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
}
}
else {
if(!FLAC__stream_decoder_process_metadata(seekable_stream_encoder->private_->verify_fifo.decoder)) {
seekable_stream_encoder->private_->verify_fifo.result = FLAC__VERIFY_FAILED_IN_METADATA;
return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
}
}
}
#ifdef FLAC__HAS_OGG
if(seekable_stream_encoder->private_->use_ogg) {
ogg_packet op;
memset(&op, 0, sizeof(op));
op.packet = (unsigned char *)buffer;
op.granulepos = seekable_stream_encoder->private_->samples_written - 1;
/*@@@ WATCHOUT:
* this depends on the behavior of libFLAC that we will get one
* write_callback first with all the metadata (and 'samples'
* will be 0), then one write_callback for each frame.
*/
op.packetno = (samples == 0? -1 : (int)seekable_stream_encoder->private_->current_frame);
op.bytes = bytes;
if (seekable_stream_encoder->private_->bytes_written == bytes)
op.b_o_s = 1;
if (seekable_stream_encoder->private_->total_samples_to_encode == seekable_stream_encoder->private_->samples_written)
op.e_o_s = 1;
ogg_stream_packetin(&seekable_stream_encoder->private_->ogg.os, &op);
while(ogg_stream_pageout(&seekable_stream_encoder->private_->ogg.os, &seekable_stream_encoder->private_->ogg.og) != 0) {
int written;
written = fwrite(seekable_stream_encoder->private_->ogg.og.header, 1, seekable_stream_encoder->private_->ogg.og.header_len, seekable_stream_encoder->private_->fout);
if (written != seekable_stream_encoder->private_->ogg.og.header_len)
return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
written = fwrite(seekable_stream_encoder->private_->ogg.og.body, 1, seekable_stream_encoder->private_->ogg.og.body_len, seekable_stream_encoder->private_->fout);
if (written != seekable_stream_encoder->private_->ogg.og.body_len)
return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
}
return FLAC__STREAM_ENCODER_WRITE_OK;
}
else
#endif
{
if(fwrite(buffer, sizeof(FLAC__byte), bytes, seekable_stream_encoder->private_->fout) == bytes)
return FLAC__STREAM_ENCODER_WRITE_OK;
else
return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
}
}
void metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data)
{
seekable_stream_encoder->private_ *seekable_stream_encoder->private_ = (seekable_stream_encoder->private_ *)client_data;
FLAC__byte b;
FILE *f = seekable_stream_encoder->private_->fout;
const FLAC__uint64 samples = metadata->data.stream_info.total_samples;
const unsigned min_framesize = metadata->data.stream_info.min_framesize;
const unsigned max_framesize = metadata->data.stream_info.max_framesize;
FLAC__ASSERT(metadata->type == FLAC__METADATA_TYPE_STREAMINFO);
/*
* If we are writing to an ogg stream, there is no need to go back
* and update the STREAMINFO or SEEKTABLE blocks; the values we would
* update are not necessary with Ogg as the transport. We can't do
* it reliably anyway without knowing the Ogg structure.
*/
#ifdef FLAC__HAS_OGG
if(seekable_stream_encoder->private_->use_ogg)
return;
#endif
/*
* we get called by the encoder when the encoding process has
* finished so that we can update the STREAMINFO and SEEKTABLE
* blocks.
*/
(void)encoder; /* silence compiler warning about unused parameter */
if(f != stdout) {
fclose(seekable_stream_encoder->private_->fout);
if(0 == (f = fopen(seekable_stream_encoder->private_->outfilename, "r+b")))
return;
}
/* all this is based on intimate knowledge of the stream header
* layout, but a change to the header format that would break this
* would also break all streams encoded in the previous format.
*/
if(-1 == fseek(f, 26, SEEK_SET)) goto end_;
fwrite(metadata->data.stream_info.md5sum, 1, 16, f);
/* if we get this far we know we can seek so no need to check the
* return value from fseek()
*/
fseek(f, 21, SEEK_SET);
if(fread(&b, 1, 1, f) != 1) goto framesize_;
fseek(f, 21, SEEK_SET);
b = (b & 0xf0) | (FLAC__byte)((samples >> 32) & 0x0F);
if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
b = (FLAC__byte)((samples >> 24) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
b = (FLAC__byte)((samples >> 16) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
b = (FLAC__byte)((samples >> 8) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
b = (FLAC__byte)(samples & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
framesize_:
fseek(f, 12, SEEK_SET);
b = (FLAC__byte)((min_framesize >> 16) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
b = (FLAC__byte)((min_framesize >> 8) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
b = (FLAC__byte)(min_framesize & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
b = (FLAC__byte)((max_framesize >> 16) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
b = (FLAC__byte)((max_framesize >> 8) & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
b = (FLAC__byte)(max_framesize & 0xFF);
if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
seektable_:
if(seekable_stream_encoder->private_->seek_table.num_points > 0) {
long pos;
unsigned i;
/* convert any unused seek points to placeholders */
for(i = 0; i < seekable_stream_encoder->private_->seek_table.num_points; i++) {
if(seekable_stream_encoder->private_->seek_table.points[i].sample_number == FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER)
break;
else if(seekable_stream_encoder->private_->seek_table.points[i].frame_samples == 0)
seekable_stream_encoder->private_->seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
}
/* the offset of the seek table data 'pos' should be after then stream sync and STREAMINFO block and SEEKTABLE header */
pos = (FLAC__STREAM_SYNC_LEN + FLAC__STREAM_METADATA_IS_LAST_LEN + FLAC__STREAM_METADATA_TYPE_LEN + FLAC__STREAM_METADATA_LENGTH_LEN) / 8;
pos += metadata->length;
pos += (FLAC__STREAM_METADATA_IS_LAST_LEN + FLAC__STREAM_METADATA_TYPE_LEN + FLAC__STREAM_METADATA_LENGTH_LEN) / 8;
fseek(f, pos, SEEK_SET);
for(i = 0; i < seekable_stream_encoder->private_->seek_table.num_points; i++) {
if(!write_big_endian_uint64(f, seekable_stream_encoder->private_->seek_table.points[i].sample_number)) goto end_;
if(!write_big_endian_uint64(f, seekable_stream_encoder->private_->seek_table.points[i].stream_offset)) goto end_;
if(!write_big_endian_uint16(f, (FLAC__uint16)seekable_stream_encoder->private_->seek_table.points[i].frame_samples)) goto end_;
}
}
end_:
fclose(f);
return;
}

188
src/libFLAC/stream_encoder.c
View File

@ -48,28 +48,28 @@
*
***********************************************************************/
static void stream_encoder_set_defaults_(FLAC__StreamEncoder *encoder);
static void stream_encoder_free_(FLAC__StreamEncoder *encoder);
static FLAC__bool stream_encoder_resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_size);
static FLAC__bool stream_encoder_process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame);
static FLAC__bool stream_encoder_process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame);
static FLAC__bool stream_encoder_process_subframe_(FLAC__StreamEncoder *encoder, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool verbatim_only, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__int32 integer_signal[], const FLAC__real real_signal[], FLAC__Subframe *subframe[2], FLAC__int32 *residual[2], unsigned *best_subframe, unsigned *best_bits);
static FLAC__bool stream_encoder_add_subframe_(FLAC__StreamEncoder *encoder, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__Subframe *subframe, FLAC__BitBuffer *frame);
static unsigned stream_encoder_evaluate_constant_subframe_(const FLAC__int32 signal, unsigned subframe_bps, FLAC__Subframe *subframe);
static unsigned stream_encoder_evaluate_fixed_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe);
static unsigned stream_encoder_evaluate_lpc_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], const FLAC__real lp_coeff[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned qlp_coeff_precision, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe);
static unsigned stream_encoder_evaluate_verbatim_subframe_(const FLAC__int32 signal[], unsigned blocksize, unsigned subframe_bps, FLAC__Subframe *subframe);
static unsigned stream_encoder_find_best_partition_order_(struct FLAC__StreamEncoderPrivate *private_, const FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, unsigned *best_partition_order, unsigned best_parameters[], unsigned best_raw_bits[]);
static void stream_encoder_precompute_partition_info_sums_(const FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order);
static void stream_encoder_precompute_partition_info_escapes_(const FLAC__int32 residual[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order);
static void set_defaults_(FLAC__StreamEncoder *encoder);
static void free_(FLAC__StreamEncoder *encoder);
static FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_size);
static FLAC__bool process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame);
static FLAC__bool process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame);
static FLAC__bool process_subframe_(FLAC__StreamEncoder *encoder, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool verbatim_only, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__int32 integer_signal[], const FLAC__real real_signal[], FLAC__Subframe *subframe[2], FLAC__int32 *residual[2], unsigned *best_subframe, unsigned *best_bits);
static FLAC__bool add_subframe_(FLAC__StreamEncoder *encoder, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__Subframe *subframe, FLAC__BitBuffer *frame);
static unsigned evaluate_constant_subframe_(const FLAC__int32 signal, unsigned subframe_bps, FLAC__Subframe *subframe);
static unsigned evaluate_fixed_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe);
static unsigned evaluate_lpc_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], const FLAC__real lp_coeff[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned qlp_coeff_precision, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe);
static unsigned evaluate_verbatim_subframe_(const FLAC__int32 signal[], unsigned blocksize, unsigned subframe_bps, FLAC__Subframe *subframe);
static unsigned find_best_partition_order_(struct FLAC__StreamEncoderPrivate *private_, const FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, unsigned *best_partition_order, unsigned best_parameters[], unsigned best_raw_bits[]);
static void precompute_partition_info_sums_(const FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order);
static void precompute_partition_info_escapes_(const FLAC__int32 residual[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order);
#ifdef DONT_ESTIMATE_RICE_BITS
static FLAC__bool stream_encoder_set_partitioned_rice_(const FLAC__uint32 abs_residual[], const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits);
static FLAC__bool stream_encoder_set_partitioned_rice_with_precompute_(const FLAC__int32 residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits);
static FLAC__bool set_partitioned_rice_(const FLAC__uint32 abs_residual[], const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits);
static FLAC__bool set_partitioned_rice_with_precompute_(const FLAC__int32 residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits);
#else
static FLAC__bool stream_encoder_set_partitioned_rice_(const FLAC__uint32 abs_residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits);
static FLAC__bool stream_encoder_set_partitioned_rice_with_precompute_(const FLAC__uint32 abs_residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits);
static FLAC__bool set_partitioned_rice_(const FLAC__uint32 abs_residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits);
static FLAC__bool set_partitioned_rice_with_precompute_(const FLAC__uint32 abs_residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits);
#endif
static unsigned stream_encoder_get_wasted_bits_(FLAC__int32 signal[], unsigned samples);
static unsigned get_wasted_bits_(FLAC__int32 signal[], unsigned samples);
/***********************************************************************
*
@ -133,8 +133,8 @@ typedef struct FLAC__StreamEncoderPrivate {
* These fields have been moved here from private function local
* declarations merely to save stack space during encoding.
*/
FLAC__real lp_coeff[FLAC__MAX_LPC_ORDER][FLAC__MAX_LPC_ORDER]; /* from stream_encoder_process_subframe_() */
unsigned parameters[2][1 << FLAC__MAX_RICE_PARTITION_ORDER], raw_bits[2][1 << FLAC__MAX_RICE_PARTITION_ORDER]; /* from stream_encoder_find_best_partition_order_() */
FLAC__real lp_coeff[FLAC__MAX_LPC_ORDER][FLAC__MAX_LPC_ORDER]; /* from process_subframe_() */
unsigned parameters[2][1 << FLAC__MAX_RICE_PARTITION_ORDER], raw_bits[2][1 << FLAC__MAX_RICE_PARTITION_ORDER]; /* from find_best_partition_order_() */
} FLAC__StreamEncoderPrivate;
/***********************************************************************
@ -204,7 +204,7 @@ FLAC__StreamEncoder *FLAC__stream_encoder_new()
return 0;
}
stream_encoder_set_defaults_(encoder);
set_defaults_(encoder);
encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
@ -213,12 +213,12 @@ FLAC__StreamEncoder *FLAC__stream_encoder_new()
void FLAC__stream_encoder_delete(FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(encoder != 0);
FLAC__ASSERT(encoder->protected_ != 0);
FLAC__ASSERT(encoder->private_ != 0);
FLAC__ASSERT(encoder->private_->frame != 0);
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->private_->frame);
stream_encoder_free_(encoder);
free_(encoder);
FLAC__bitbuffer_delete(encoder->private_->frame);
free(encoder->private_);
free(encoder->protected_);
@ -235,7 +235,7 @@ FLAC__StreamEncoderState FLAC__stream_encoder_init(FLAC__StreamEncoder *encoder)
{
unsigned i;
FLAC__ASSERT(encoder != 0);
FLAC__ASSERT(0 != encoder);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return encoder->protected_->state = FLAC__STREAM_ENCODER_ALREADY_INITIALIZED;
@ -416,7 +416,7 @@ FLAC__StreamEncoderState FLAC__stream_encoder_init(FLAC__StreamEncoder *encoder)
/* we require precompute_partition_sums if do_escape_coding because of their intertwined nature */
encoder->private_->precompute_partition_sums = (encoder->protected_->max_residual_partition_order > encoder->protected_->min_residual_partition_order) || encoder->protected_->do_escape_coding;
if(!stream_encoder_resize_buffers_(encoder, encoder->protected_->blocksize)) {
if(!resize_buffers_(encoder, encoder->protected_->blocksize)) {
/* the above function sets the state for us in case of an error */
return encoder->protected_->state;
}
@ -477,18 +477,18 @@ void FLAC__stream_encoder_finish(FLAC__StreamEncoder *encoder)
{
unsigned i, channel;
FLAC__ASSERT(encoder != 0);
FLAC__ASSERT(0 != encoder);
if(encoder->protected_->state == FLAC__STREAM_ENCODER_UNINITIALIZED)
return;
if(encoder->private_->current_sample_number != 0) {
encoder->protected_->blocksize = encoder->private_->current_sample_number;
stream_encoder_process_frame_(encoder, true); /* true => is last frame */
process_frame_(encoder, true); /* true => is last frame */
}
MD5Final(encoder->private_->metadata.data.stream_info.md5sum, &encoder->private_->md5context);
encoder->private_->metadata_callback(encoder, &encoder->private_->metadata, encoder->private_->client_data);
stream_encoder_free_(encoder);
stream_encoder_set_defaults_(encoder);
free_(encoder);
set_defaults_(encoder);
encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
}
@ -782,7 +782,7 @@ FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC
FLAC__int32 x, mid, side;
const unsigned channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize;
FLAC__ASSERT(encoder != 0);
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
j = 0;
@ -805,7 +805,7 @@ FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC
encoder->private_->current_sample_number++;
}
if(i == blocksize) {
if(!stream_encoder_process_frame_(encoder, false)) /* false => not last frame */
if(!process_frame_(encoder, false)) /* false => not last frame */
return false;
}
} while(j < samples);
@ -821,7 +821,7 @@ FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC
encoder->private_->current_sample_number++;
}
if(i == blocksize) {
if(!stream_encoder_process_frame_(encoder, false)) /* false => not last frame */
if(!process_frame_(encoder, false)) /* false => not last frame */
return false;
}
} while(j < samples);
@ -837,7 +837,7 @@ FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder
FLAC__int32 x, mid, side;
const unsigned channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize;
FLAC__ASSERT(encoder != 0);
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
j = k = 0;
@ -860,7 +860,7 @@ FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder
encoder->private_->current_sample_number++;
}
if(i == blocksize) {
if(!stream_encoder_process_frame_(encoder, false)) /* false => not last frame */
if(!process_frame_(encoder, false)) /* false => not last frame */
return false;
}
} while(j < samples);
@ -876,7 +876,7 @@ FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder
encoder->private_->current_sample_number++;
}
if(i == blocksize) {
if(!stream_encoder_process_frame_(encoder, false)) /* false => not last frame */
if(!process_frame_(encoder, false)) /* false => not last frame */
return false;
}
} while(j < samples);
@ -885,7 +885,13 @@ FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder
return true;
}
void stream_encoder_set_defaults_(FLAC__StreamEncoder *encoder)
/***********************************************************************
*
* Private class methods
*
***********************************************************************/
void set_defaults_(FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
@ -913,34 +919,34 @@ void stream_encoder_set_defaults_(FLAC__StreamEncoder *encoder)
encoder->private_->client_data = 0;
}
void stream_encoder_free_(FLAC__StreamEncoder *encoder)
void free_(FLAC__StreamEncoder *encoder)
{
unsigned i, channel;
FLAC__ASSERT(encoder != 0);
FLAC__ASSERT(0 != encoder);
for(i = 0; i < encoder->protected_->channels; i++) {
if(encoder->private_->integer_signal_unaligned[i] != 0) {
if(0 != encoder->private_->integer_signal_unaligned[i]) {
free(encoder->private_->integer_signal_unaligned[i]);
encoder->private_->integer_signal_unaligned[i] = 0;
}
if(encoder->private_->real_signal_unaligned[i] != 0) {
if(0 != encoder->private_->real_signal_unaligned[i]) {
free(encoder->private_->real_signal_unaligned[i]);
encoder->private_->real_signal_unaligned[i] = 0;
}
}
for(i = 0; i < 2; i++) {
if(encoder->private_->integer_signal_mid_side_unaligned[i] != 0) {
if(0 != encoder->private_->integer_signal_mid_side_unaligned[i]) {
free(encoder->private_->integer_signal_mid_side_unaligned[i]);
encoder->private_->integer_signal_mid_side_unaligned[i] = 0;
}
if(encoder->private_->real_signal_mid_side_unaligned[i] != 0) {
if(0 != encoder->private_->real_signal_mid_side_unaligned[i]) {
free(encoder->private_->real_signal_mid_side_unaligned[i]);
encoder->private_->real_signal_mid_side_unaligned[i] = 0;
}
}
for(channel = 0; channel < encoder->protected_->channels; channel++) {
for(i = 0; i < 2; i++) {
if(encoder->private_->residual_workspace_unaligned[channel][i] != 0) {
if(0 != encoder->private_->residual_workspace_unaligned[channel][i]) {
free(encoder->private_->residual_workspace_unaligned[channel][i]);
encoder->private_->residual_workspace_unaligned[channel][i] = 0;
}
@ -948,28 +954,28 @@ void stream_encoder_free_(FLAC__StreamEncoder *encoder)
}
for(channel = 0; channel < 2; channel++) {
for(i = 0; i < 2; i++) {
if(encoder->private_->residual_workspace_mid_side_unaligned[channel][i] != 0) {
if(0 != encoder->private_->residual_workspace_mid_side_unaligned[channel][i]) {
free(encoder->private_->residual_workspace_mid_side_unaligned[channel][i]);
encoder->private_->residual_workspace_mid_side_unaligned[channel][i] = 0;
}
}
}
if(encoder->private_->abs_residual_unaligned != 0) {
if(0 != encoder->private_->abs_residual_unaligned) {
free(encoder->private_->abs_residual_unaligned);
encoder->private_->abs_residual_unaligned = 0;
}
if(encoder->private_->abs_residual_partition_sums_unaligned != 0) {
if(0 != encoder->private_->abs_residual_partition_sums_unaligned) {
free(encoder->private_->abs_residual_partition_sums_unaligned);
encoder->private_->abs_residual_partition_sums_unaligned = 0;
}
if(encoder->private_->raw_bits_per_partition_unaligned != 0) {
if(0 != encoder->private_->raw_bits_per_partition_unaligned) {
free(encoder->private_->raw_bits_per_partition_unaligned);
encoder->private_->raw_bits_per_partition_unaligned = 0;
}
FLAC__bitbuffer_free(encoder->private_->frame);
}
FLAC__bool stream_encoder_resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_size)
FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_size)
{
FLAC__bool ok;
unsigned i, channel;
@ -1022,13 +1028,7 @@ FLAC__bool stream_encoder_resize_buffers_(FLAC__StreamEncoder *encoder, unsigned
return ok;
}
/***********************************************************************
*
* Private class methods
*
***********************************************************************/
FLAC__bool stream_encoder_process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame)
FLAC__bool process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame)
{
const FLAC__byte *buffer;
unsigned bytes;
@ -1046,7 +1046,7 @@ FLAC__bool stream_encoder_process_frame_(FLAC__StreamEncoder *encoder, FLAC__boo
/*
* Process the frame header and subframes into the frame bitbuffer
*/
if(!stream_encoder_process_subframes_(encoder, is_last_frame)) {
if(!process_subframes_(encoder, is_last_frame)) {
/* the above function sets the state for us in case of an error */
return false;
}
@ -1087,7 +1087,7 @@ FLAC__bool stream_encoder_process_frame_(FLAC__StreamEncoder *encoder, FLAC__boo
return true;
}
FLAC__bool stream_encoder_process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame)
FLAC__bool process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame)
{
FLAC__FrameHeader frame_header;
unsigned channel, min_partition_order = encoder->protected_->min_residual_partition_order, max_partition_order;
@ -1158,7 +1158,7 @@ FLAC__bool stream_encoder_process_subframes_(FLAC__StreamEncoder *encoder, FLAC_
if(do_independent) {
unsigned w;
for(channel = 0; channel < encoder->protected_->channels; channel++) {
w = stream_encoder_get_wasted_bits_(encoder->private_->integer_signal[channel], encoder->protected_->blocksize);
w = get_wasted_bits_(encoder->private_->integer_signal[channel], encoder->protected_->blocksize);
encoder->private_->subframe_workspace[channel][0].wasted_bits = encoder->private_->subframe_workspace[channel][1].wasted_bits = w;
encoder->private_->subframe_bps[channel] = encoder->protected_->bits_per_sample - w;
}
@ -1167,7 +1167,7 @@ FLAC__bool stream_encoder_process_subframes_(FLAC__StreamEncoder *encoder, FLAC_
unsigned w;
FLAC__ASSERT(encoder->protected_->channels == 2);
for(channel = 0; channel < 2; channel++) {
w = stream_encoder_get_wasted_bits_(encoder->private_->integer_signal_mid_side[channel], encoder->protected_->blocksize);
w = get_wasted_bits_(encoder->private_->integer_signal_mid_side[channel], encoder->protected_->blocksize);
encoder->private_->subframe_workspace_mid_side[channel][0].wasted_bits = encoder->private_->subframe_workspace_mid_side[channel][1].wasted_bits = w;
encoder->private_->subframe_bps_mid_side[channel] = encoder->protected_->bits_per_sample - w + (channel==0? 0:1);
}
@ -1178,7 +1178,7 @@ FLAC__bool stream_encoder_process_subframes_(FLAC__StreamEncoder *encoder, FLAC_
*/
if(do_independent) {
for(channel = 0; channel < encoder->protected_->channels; channel++) {
if(!stream_encoder_process_subframe_(encoder, min_partition_order, max_partition_order, precompute_partition_sums, false, &frame_header, encoder->private_->subframe_bps[channel], encoder->private_->integer_signal[channel], encoder->private_->real_signal[channel], encoder->private_->subframe_workspace_ptr[channel], encoder->private_->residual_workspace[channel], encoder->private_->best_subframe+channel, encoder->private_->best_subframe_bits+channel))
if(!process_subframe_(encoder, min_partition_order, max_partition_order, precompute_partition_sums, false, &frame_header, encoder->private_->subframe_bps[channel], encoder->private_->integer_signal[channel], encoder->private_->real_signal[channel], encoder->private_->subframe_workspace_ptr[channel], encoder->private_->residual_workspace[channel], encoder->private_->best_subframe+channel, encoder->private_->best_subframe_bits+channel))
return false;
}
}
@ -1190,7 +1190,7 @@ FLAC__bool stream_encoder_process_subframes_(FLAC__StreamEncoder *encoder, FLAC_
FLAC__ASSERT(encoder->protected_->channels == 2);
for(channel = 0; channel < 2; channel++) {
if(!stream_encoder_process_subframe_(encoder, min_partition_order, max_partition_order, precompute_partition_sums, false, &frame_header, encoder->private_->subframe_bps_mid_side[channel], encoder->private_->integer_signal_mid_side[channel], encoder->private_->real_signal_mid_side[channel], encoder->private_->subframe_workspace_ptr_mid_side[channel], encoder->private_->residual_workspace_mid_side[channel], encoder->private_->best_subframe_mid_side+channel, encoder->private_->best_subframe_bits_mid_side+channel))
if(!process_subframe_(encoder, min_partition_order, max_partition_order, precompute_partition_sums, false, &frame_header, encoder->private_->subframe_bps_mid_side[channel], encoder->private_->integer_signal_mid_side[channel], encoder->private_->real_signal_mid_side[channel], encoder->private_->subframe_workspace_ptr_mid_side[channel], encoder->private_->residual_workspace_mid_side[channel], encoder->private_->best_subframe_mid_side+channel, encoder->private_->best_subframe_bits_mid_side+channel))
return false;
}
}
@ -1279,9 +1279,9 @@ FLAC__bool stream_encoder_process_subframes_(FLAC__StreamEncoder *encoder, FLAC_
}
/* note that encoder_add_subframe_ sets the state for us in case of an error */
if(!stream_encoder_add_subframe_(encoder, &frame_header, left_bps , left_subframe , encoder->private_->frame))
if(!add_subframe_(encoder, &frame_header, left_bps , left_subframe , encoder->private_->frame))
return false;
if(!stream_encoder_add_subframe_(encoder, &frame_header, right_bps, right_subframe, encoder->private_->frame))
if(!add_subframe_(encoder, &frame_header, right_bps, right_subframe, encoder->private_->frame))
return false;
}
else {
@ -1291,7 +1291,7 @@ FLAC__bool stream_encoder_process_subframes_(FLAC__StreamEncoder *encoder, FLAC_
}
for(channel = 0; channel < encoder->protected_->channels; channel++) {
if(!stream_encoder_add_subframe_(encoder, &frame_header, encoder->private_->subframe_bps[channel], &encoder->private_->subframe_workspace[channel][encoder->private_->best_subframe[channel]], encoder->private_->frame)) {
if(!add_subframe_(encoder, &frame_header, encoder->private_->subframe_bps[channel], &encoder->private_->subframe_workspace[channel][encoder->private_->best_subframe[channel]], encoder->private_->frame)) {
/* the above function sets the state for us in case of an error */
return false;
}
@ -1309,7 +1309,7 @@ FLAC__bool stream_encoder_process_subframes_(FLAC__StreamEncoder *encoder, FLAC_
return true;
}
FLAC__bool stream_encoder_process_subframe_(FLAC__StreamEncoder *encoder, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool verbatim_only, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__int32 integer_signal[], const FLAC__real real_signal[], FLAC__Subframe *subframe[2], FLAC__int32 *residual[2], unsigned *best_subframe, unsigned *best_bits)
FLAC__bool process_subframe_(FLAC__StreamEncoder *encoder, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool verbatim_only, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__int32 integer_signal[], const FLAC__real real_signal[], FLAC__Subframe *subframe[2], FLAC__int32 *residual[2], unsigned *best_subframe, unsigned *best_bits)
{
FLAC__real fixed_residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1];
FLAC__real lpc_residual_bits_per_sample;
@ -1324,7 +1324,7 @@ FLAC__bool stream_encoder_process_subframe_(FLAC__StreamEncoder *encoder, unsign
/* verbatim subframe is the baseline against which we measure other compressed subframes */
_best_subframe = 0;
_best_bits = stream_encoder_evaluate_verbatim_subframe_(integer_signal, frame_header->blocksize, subframe_bps, subframe[_best_subframe]);
_best_bits = evaluate_verbatim_subframe_(integer_signal, frame_header->blocksize, subframe_bps, subframe[_best_subframe]);
if(!verbatim_only && frame_header->blocksize >= FLAC__MAX_FIXED_ORDER) {
/* check for constant subframe */
@ -1339,7 +1339,7 @@ FLAC__bool stream_encoder_process_subframe_(FLAC__StreamEncoder *encoder, unsign
}
}
if(signal_is_constant) {
_candidate_bits = stream_encoder_evaluate_constant_subframe_(integer_signal[0], subframe_bps, subframe[!_best_subframe]);
_candidate_bits = evaluate_constant_subframe_(integer_signal[0], subframe_bps, subframe[!_best_subframe]);
if(_candidate_bits < _best_bits) {
_best_subframe = !_best_subframe;
_best_bits = _candidate_bits;
@ -1368,7 +1368,7 @@ FLAC__bool stream_encoder_process_subframe_(FLAC__StreamEncoder *encoder, unsign
#endif
rice_parameter = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER - 1;
}
_candidate_bits = stream_encoder_evaluate_fixed_subframe_(encoder, integer_signal, residual[!_best_subframe], encoder->private_->abs_residual, encoder->private_->abs_residual_partition_sums, encoder->private_->raw_bits_per_partition, frame_header->blocksize, subframe_bps, fixed_order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, encoder->protected_->do_escape_coding, encoder->protected_->rice_parameter_search_dist, subframe[!_best_subframe]);
_candidate_bits = evaluate_fixed_subframe_(encoder, integer_signal, residual[!_best_subframe], encoder->private_->abs_residual, encoder->private_->abs_residual_partition_sums, encoder->private_->raw_bits_per_partition, frame_header->blocksize, subframe_bps, fixed_order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, encoder->protected_->do_escape_coding, encoder->protected_->rice_parameter_search_dist, subframe[!_best_subframe]);
if(_candidate_bits < _best_bits) {
_best_subframe = !_best_subframe;
_best_bits = _candidate_bits;
@ -1415,7 +1415,7 @@ FLAC__bool stream_encoder_process_subframe_(FLAC__StreamEncoder *encoder, unsign
rice_parameter = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER - 1;
}
for(qlp_coeff_precision = min_qlp_coeff_precision; qlp_coeff_precision <= max_qlp_coeff_precision; qlp_coeff_precision++) {
_candidate_bits = stream_encoder_evaluate_lpc_subframe_(encoder, integer_signal, residual[!_best_subframe], encoder->private_->abs_residual, encoder->private_->abs_residual_partition_sums, encoder->private_->raw_bits_per_partition, encoder->private_->lp_coeff[lpc_order-1], frame_header->blocksize, subframe_bps, lpc_order, qlp_coeff_precision, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, encoder->protected_->do_escape_coding, encoder->protected_->rice_parameter_search_dist, subframe[!_best_subframe]);
_candidate_bits = evaluate_lpc_subframe_(encoder, integer_signal, residual[!_best_subframe], encoder->private_->abs_residual, encoder->private_->abs_residual_partition_sums, encoder->private_->raw_bits_per_partition, encoder->private_->lp_coeff[lpc_order-1], frame_header->blocksize, subframe_bps, lpc_order, qlp_coeff_precision, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, encoder->protected_->do_escape_coding, encoder->protected_->rice_parameter_search_dist, subframe[!_best_subframe]);
if(_candidate_bits > 0) { /* if == 0, there was a problem quantizing the lpcoeffs */
if(_candidate_bits < _best_bits) {
_best_subframe = !_best_subframe;
@ -1436,7 +1436,7 @@ FLAC__bool stream_encoder_process_subframe_(FLAC__StreamEncoder *encoder, unsign
return true;
}
FLAC__bool stream_encoder_add_subframe_(FLAC__StreamEncoder *encoder, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__Subframe *subframe, FLAC__BitBuffer *frame)
FLAC__bool add_subframe_(FLAC__StreamEncoder *encoder, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__Subframe *subframe, FLAC__BitBuffer *frame)
{
switch(subframe->type) {
case FLAC__SUBFRAME_TYPE_CONSTANT:
@ -1470,7 +1470,7 @@ FLAC__bool stream_encoder_add_subframe_(FLAC__StreamEncoder *encoder, const FLAC
return true;
}
unsigned stream_encoder_evaluate_constant_subframe_(const FLAC__int32 signal, unsigned subframe_bps, FLAC__Subframe *subframe)
unsigned evaluate_constant_subframe_(const FLAC__int32 signal, unsigned subframe_bps, FLAC__Subframe *subframe)
{
subframe->type = FLAC__SUBFRAME_TYPE_CONSTANT;
subframe->data.constant.value = signal;
@ -1478,7 +1478,7 @@ unsigned stream_encoder_evaluate_constant_subframe_(const FLAC__int32 signal, un
return FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe_bps;
}
unsigned stream_encoder_evaluate_fixed_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe)
unsigned evaluate_fixed_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe)
{
unsigned i, residual_bits;
const unsigned residual_samples = blocksize - order;
@ -1490,7 +1490,7 @@ unsigned stream_encoder_evaluate_fixed_subframe_(FLAC__StreamEncoder *encoder, c
subframe->data.fixed.entropy_coding_method.type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE;
subframe->data.fixed.residual = residual;
residual_bits = stream_encoder_find_best_partition_order_(encoder->private_, residual, abs_residual, abs_residual_partition_sums, raw_bits_per_partition, residual_samples, order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, do_escape_coding, rice_parameter_search_dist, &subframe->data.fixed.entropy_coding_method.data.partitioned_rice.order, subframe->data.fixed.entropy_coding_method.data.partitioned_rice.parameters, subframe->data.fixed.entropy_coding_method.data.partitioned_rice.raw_bits);
residual_bits = find_best_partition_order_(encoder->private_, residual, abs_residual, abs_residual_partition_sums, raw_bits_per_partition, residual_samples, order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, do_escape_coding, rice_parameter_search_dist, &subframe->data.fixed.entropy_coding_method.data.partitioned_rice.order, subframe->data.fixed.entropy_coding_method.data.partitioned_rice.parameters, subframe->data.fixed.entropy_coding_method.data.partitioned_rice.raw_bits);
subframe->data.fixed.order = order;
for(i = 0; i < order; i++)
@ -1499,7 +1499,7 @@ unsigned stream_encoder_evaluate_fixed_subframe_(FLAC__StreamEncoder *encoder, c
return FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + (order * subframe_bps) + residual_bits;
}
unsigned stream_encoder_evaluate_lpc_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], const FLAC__real lp_coeff[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned qlp_coeff_precision, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe)
unsigned evaluate_lpc_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], const FLAC__real lp_coeff[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned qlp_coeff_precision, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe)
{
FLAC__int32 qlp_coeff[FLAC__MAX_LPC_ORDER];
unsigned i, residual_bits;
@ -1520,7 +1520,7 @@ unsigned stream_encoder_evaluate_lpc_subframe_(FLAC__StreamEncoder *encoder, con
subframe->data.lpc.entropy_coding_method.type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE;
subframe->data.lpc.residual = residual;
residual_bits = stream_encoder_find_best_partition_order_(encoder->private_, residual, abs_residual, abs_residual_partition_sums, raw_bits_per_partition, residual_samples, order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, do_escape_coding, rice_parameter_search_dist, &subframe->data.lpc.entropy_coding_method.data.partitioned_rice.order, subframe->data.lpc.entropy_coding_method.data.partitioned_rice.parameters, subframe->data.lpc.entropy_coding_method.data.partitioned_rice.raw_bits);
residual_bits = find_best_partition_order_(encoder->private_, residual, abs_residual, abs_residual_partition_sums, raw_bits_per_partition, residual_samples, order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, do_escape_coding, rice_parameter_search_dist, &subframe->data.lpc.entropy_coding_method.data.partitioned_rice.order, subframe->data.lpc.entropy_coding_method.data.partitioned_rice.parameters, subframe->data.lpc.entropy_coding_method.data.partitioned_rice.raw_bits);
subframe->data.lpc.order = order;
subframe->data.lpc.qlp_coeff_precision = qlp_coeff_precision;
@ -1532,7 +1532,7 @@ unsigned stream_encoder_evaluate_lpc_subframe_(FLAC__StreamEncoder *encoder, con
return FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN + FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN + (order * (qlp_coeff_precision + subframe_bps)) + residual_bits;
}
unsigned stream_encoder_evaluate_verbatim_subframe_(const FLAC__int32 signal[], unsigned blocksize, unsigned subframe_bps, FLAC__Subframe *subframe)
unsigned evaluate_verbatim_subframe_(const FLAC__int32 signal[], unsigned blocksize, unsigned subframe_bps, FLAC__Subframe *subframe)
{
subframe->type = FLAC__SUBFRAME_TYPE_VERBATIM;
@ -1541,7 +1541,7 @@ unsigned stream_encoder_evaluate_verbatim_subframe_(const FLAC__int32 signal[],
return FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + (blocksize * subframe_bps);
}
unsigned stream_encoder_find_best_partition_order_(FLAC__StreamEncoderPrivate *private_, const FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, unsigned *best_partition_order, unsigned best_parameters[], unsigned best_raw_bits[])
unsigned find_best_partition_order_(FLAC__StreamEncoderPrivate *private_, const FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, unsigned *best_partition_order, unsigned best_parameters[], unsigned best_raw_bits[])
{
FLAC__int32 r;
unsigned residual_bits, best_residual_bits = 0;
@ -1564,16 +1564,16 @@ unsigned stream_encoder_find_best_partition_order_(FLAC__StreamEncoderPrivate *p
int partition_order;
unsigned sum;
stream_encoder_precompute_partition_info_sums_(abs_residual, abs_residual_partition_sums, residual_samples, predictor_order, min_partition_order, max_partition_order);
precompute_partition_info_sums_(abs_residual, abs_residual_partition_sums, residual_samples, predictor_order, min_partition_order, max_partition_order);
if(do_escape_coding)
stream_encoder_precompute_partition_info_escapes_(residual, raw_bits_per_partition, residual_samples, predictor_order, min_partition_order, max_partition_order);
precompute_partition_info_escapes_(residual, raw_bits_per_partition, residual_samples, predictor_order, min_partition_order, max_partition_order);
for(partition_order = (int)max_partition_order, sum = 0; partition_order >= (int)min_partition_order; partition_order--) {
#ifdef DONT_ESTIMATE_RICE_BITS
if(!stream_encoder_set_partitioned_rice_with_precompute_(residual, abs_residual_partition_sums+sum, raw_bits_per_partition+sum, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, (unsigned)partition_order, do_escape_coding, private_->parameters[!best_parameters_index], private_->raw_bits[!best_parameters_index], &residual_bits))
if(!set_partitioned_rice_with_precompute_(residual, abs_residual_partition_sums+sum, raw_bits_per_partition+sum, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, (unsigned)partition_order, do_escape_coding, private_->parameters[!best_parameters_index], private_->raw_bits[!best_parameters_index], &residual_bits))
#else
if(!stream_encoder_set_partitioned_rice_with_precompute_(abs_residual, abs_residual_partition_sums+sum, raw_bits_per_partition+sum, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, (unsigned)partition_order, do_escape_coding, private_->parameters[!best_parameters_index], private_->raw_bits[!best_parameters_index], &residual_bits))
if(!set_partitioned_rice_with_precompute_(abs_residual, abs_residual_partition_sums+sum, raw_bits_per_partition+sum, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, (unsigned)partition_order, do_escape_coding, private_->parameters[!best_parameters_index], private_->raw_bits[!best_parameters_index], &residual_bits))
#endif
{
FLAC__ASSERT(best_residual_bits != 0);
@ -1591,9 +1591,9 @@ unsigned stream_encoder_find_best_partition_order_(FLAC__StreamEncoderPrivate *p
unsigned partition_order;
for(partition_order = min_partition_order; partition_order <= max_partition_order; partition_order++) {
#ifdef DONT_ESTIMATE_RICE_BITS
if(!stream_encoder_set_partitioned_rice_(abs_residual, residual, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, partition_order, private_->parameters[!best_parameters_index], &residual_bits))
if(!set_partitioned_rice_(abs_residual, residual, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, partition_order, private_->parameters[!best_parameters_index], &residual_bits))
#else
if(!stream_encoder_set_partitioned_rice_(abs_residual, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, partition_order, private_->parameters[!best_parameters_index], &residual_bits))
if(!set_partitioned_rice_(abs_residual, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, partition_order, private_->parameters[!best_parameters_index], &residual_bits))
#endif
{
FLAC__ASSERT(best_residual_bits != 0);
@ -1613,7 +1613,7 @@ unsigned stream_encoder_find_best_partition_order_(FLAC__StreamEncoderPrivate *p
return best_residual_bits;
}
void stream_encoder_precompute_partition_info_sums_(const FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order)
void precompute_partition_info_sums_(const FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order)
{
int partition_order;
unsigned from_partition, to_partition = 0;
@ -1660,7 +1660,7 @@ void stream_encoder_precompute_partition_info_sums_(const FLAC__uint32 abs_resid
}
}
void stream_encoder_precompute_partition_info_escapes_(const FLAC__int32 residual[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order)
void precompute_partition_info_escapes_(const FLAC__int32 residual[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order)
{
int partition_order;
unsigned from_partition, to_partition = 0;
@ -1720,9 +1720,9 @@ void stream_encoder_precompute_partition_info_escapes_(const FLAC__int32 residua
#endif
#ifdef DONT_ESTIMATE_RICE_BITS
FLAC__bool stream_encoder_set_partitioned_rice_(const FLAC__uint32 abs_residual[], const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits)
FLAC__bool set_partitioned_rice_(const FLAC__uint32 abs_residual[], const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits)
#else
FLAC__bool stream_encoder_set_partitioned_rice_(const FLAC__uint32 abs_residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits)
FLAC__bool set_partitioned_rice_(const FLAC__uint32 abs_residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits)
#endif
{
unsigned rice_parameter, partition_bits;
@ -1892,9 +1892,9 @@ FLAC__bool stream_encoder_set_partitioned_rice_(const FLAC__uint32 abs_residual[
}
#ifdef DONT_ESTIMATE_RICE_BITS
FLAC__bool stream_encoder_set_partitioned_rice_with_precompute_(const FLAC__int32 residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits)
FLAC__bool set_partitioned_rice_with_precompute_(const FLAC__int32 residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits)
#else
FLAC__bool stream_encoder_set_partitioned_rice_with_precompute_(const FLAC__uint32 abs_residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits)
FLAC__bool set_partitioned_rice_with_precompute_(const FLAC__uint32 abs_residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits)
#endif
{
unsigned rice_parameter, partition_bits;
@ -2076,7 +2076,7 @@ FLAC__bool stream_encoder_set_partitioned_rice_with_precompute_(const FLAC__uint
return true;
}
unsigned stream_encoder_get_wasted_bits_(FLAC__int32 signal[], unsigned samples)
unsigned get_wasted_bits_(FLAC__int32 signal[], unsigned samples)
{
unsigned i, shift;
FLAC__int32 x = 0;

16
src/libFLAC/stream_encoder_framing.c
View File

@ -27,8 +27,8 @@
#endif
#define max(x,y) ((x)>(y)?(x):(y))
static FLAC__bool subframe_add_entropy_coding_method_(FLAC__BitBuffer *bb, const FLAC__EntropyCodingMethod *method);
static FLAC__bool subframe_add_residual_partitioned_rice_(FLAC__BitBuffer *bb, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order);
static FLAC__bool add_entropy_coding_method_(FLAC__BitBuffer *bb, const FLAC__EntropyCodingMethod *method);
static FLAC__bool add_residual_partitioned_rice_(FLAC__BitBuffer *bb, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order);
FLAC__bool FLAC__add_metadata_block(const FLAC__StreamMetadata *metadata, FLAC__BitBuffer *bb)
{
@ -279,11 +279,11 @@ FLAC__bool FLAC__subframe_add_fixed(const FLAC__Subframe_Fixed *subframe, unsign
if(!FLAC__bitbuffer_write_raw_int32(bb, subframe->warmup[i], subframe_bps))
return false;
if(!subframe_add_entropy_coding_method_(bb, &subframe->entropy_coding_method))
if(!add_entropy_coding_method_(bb, &subframe->entropy_coding_method))
return false;
switch(subframe->entropy_coding_method.type) {
case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
if(!subframe_add_residual_partitioned_rice_(bb, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.parameters, subframe->entropy_coding_method.data.partitioned_rice.raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order))
if(!add_residual_partitioned_rice_(bb, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.parameters, subframe->entropy_coding_method.data.partitioned_rice.raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order))
return false;
break;
default:
@ -315,11 +315,11 @@ FLAC__bool FLAC__subframe_add_lpc(const FLAC__Subframe_LPC *subframe, unsigned r
if(!FLAC__bitbuffer_write_raw_int32(bb, subframe->qlp_coeff[i], subframe->qlp_coeff_precision))
return false;
if(!subframe_add_entropy_coding_method_(bb, &subframe->entropy_coding_method))
if(!add_entropy_coding_method_(bb, &subframe->entropy_coding_method))
return false;
switch(subframe->entropy_coding_method.type) {
case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
if(!subframe_add_residual_partitioned_rice_(bb, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.parameters, subframe->entropy_coding_method.data.partitioned_rice.raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order))
if(!add_residual_partitioned_rice_(bb, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.parameters, subframe->entropy_coding_method.data.partitioned_rice.raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order))
return false;
break;
default:
@ -347,7 +347,7 @@ FLAC__bool FLAC__subframe_add_verbatim(const FLAC__Subframe_Verbatim *subframe,
return true;
}
FLAC__bool subframe_add_entropy_coding_method_(FLAC__BitBuffer *bb, const FLAC__EntropyCodingMethod *method)
FLAC__bool add_entropy_coding_method_(FLAC__BitBuffer *bb, const FLAC__EntropyCodingMethod *method)
{
if(!FLAC__bitbuffer_write_raw_uint32(bb, method->type, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
return false;
@ -362,7 +362,7 @@ FLAC__bool subframe_add_entropy_coding_method_(FLAC__BitBuffer *bb, const FLAC__
return true;
}
FLAC__bool subframe_add_residual_partitioned_rice_(FLAC__BitBuffer *bb, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order)
FLAC__bool add_residual_partitioned_rice_(FLAC__BitBuffer *bb, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order)
{
if(partition_order == 0) {
unsigned i;