217 lines
7.6 KiB
C++
217 lines
7.6 KiB
C++
#ifndef _MEDIA_FILE_H
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#define _MEDIA_FILE_H
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#include <kernel/image.h>
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#include <SupportDefs.h>
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#include <StorageDefs.h>
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#include <List.h>
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#include <MediaDefs.h>
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#include <MediaFormats.h>
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namespace BPrivate {
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namespace media {
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class MediaExtractor;
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}
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class MediaWriter;
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class _AddonManager;
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}
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// forward declarations
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class BMediaTrack;
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class BParameterWeb;
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class BView;
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// flags for the BMediaFile constructor
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enum {
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B_MEDIA_FILE_REPLACE_MODE = 0x00000001,
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B_MEDIA_FILE_NO_READ_AHEAD = 0x00000002,
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B_MEDIA_FILE_UNBUFFERED = 0x00000006,
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B_MEDIA_FILE_BIG_BUFFERS = 0x00000008
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};
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// BMediaFile represents a media file (AVI, Quicktime, MPEG, AIFF, WAV, etc)
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//
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// To read a file you construct a BMediaFile with an entry_ref, get the
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// BMediaTracks out of it and use those to read the data.
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//
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// To write a file you construct a BMediaFile with an entry ref and an id as
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// returned by get_next_file_format(). You then CreateTrack() to create
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// various audio & video tracks. Once you're done creating tracks, call
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// CommitHeader(), then write data to each track and call CloseFile() when
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// you're done.
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//
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class BMediaFile {
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public:
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// these four constructors are used for read-only access
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BMediaFile( const entry_ref *ref);
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BMediaFile( BDataIO * source); // BFile is a BDataIO
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BMediaFile( const entry_ref * ref,
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int32 flags);
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BMediaFile( BDataIO * source,
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int32 flags); // BFile is a BDataIO
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// these three constructors are for read-write access
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BMediaFile(const entry_ref *ref, // these two are write-only
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const media_file_format * mfi,
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int32 flags=0);
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BMediaFile(BDataIO *destination, // BFile is a BDataIO
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const media_file_format * mfi,
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int32 flags=0);
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BMediaFile(const media_file_format * mfi, // set file later using SetTo()
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int32 flags=0);
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status_t SetTo(const entry_ref *ref);
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status_t SetTo(BDataIO *destination); // BFile is a BDataIO
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virtual ~BMediaFile();
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status_t InitCheck() const;
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// Get info about the underlying file format.
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status_t GetFileFormatInfo(media_file_format *mfi) const;
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//
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// These functions are for read-only access to a media file.
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// The data is read using the BMediaTrack object.
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//
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const char *Copyright(void) const;
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int32 CountTracks() const;
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// Can be called multiple times with the same index. You must call
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// ReleaseTrack() when you're done with a track.
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BMediaTrack *TrackAt(int32 index);
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// Release the resource used by a given BMediaTrack object, to reduce
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// the memory usage of your application. The specific 'track' object
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// can no longer be used, but you can create another one by calling
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// TrackAt() with the same track index.
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status_t ReleaseTrack(BMediaTrack *track);
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// A convenience.
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status_t ReleaseAllTracks(void);
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// Create and add a track to the media file
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BMediaTrack *CreateTrack(media_format *mf, const media_codec_info *mci, uint32 flags=0);
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// Create and add a raw track to the media file (it has no encoder)
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BMediaTrack *CreateTrack(media_format *mf, uint32 flags=0);
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// Lets you set the copyright info for the entire file
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status_t AddCopyright(const char *data);
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// Call this to add user-defined chunks to a file (if they're supported)
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status_t AddChunk(int32 type, const void *data, size_t size);
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// After you have added all the tracks you want, call this
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status_t CommitHeader(void);
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// After you have written all the data to the track objects, call this
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status_t CloseFile(void);
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// This is for controlling file format parameters
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// returns a copy of the parameter web
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status_t GetParameterWeb(BParameterWeb** outWeb);
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status_t GetParameterValue(int32 id, void *valu, size_t *size);
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status_t SetParameterValue(int32 id, const void *valu, size_t size);
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BView *GetParameterView();
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// For the future...
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virtual status_t Perform(int32 selector, void * data);
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private:
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// deprecated, but for R5 compatibility
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BParameterWeb *Web();
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// Does nothing, returns B_ERROR, for Zeta compatiblity only
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status_t ControlFile(int32 selector, void * io_data, size_t size);
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BPrivate::media::MediaExtractor *fExtractor;
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int32 _reserved_BMediaFile_was_fExtractorID;
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int32 fTrackNum;
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status_t fErr;
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BPrivate::_AddonManager *fEncoderMgr;
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BPrivate::_AddonManager *fWriterMgr;
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BPrivate::MediaWriter *fWriter;
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int32 fWriterID;
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media_file_format fMFI;
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bool fFileClosed;
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bool fDeleteSource;
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bool _reserved_was_fUnused[2];
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BMediaTrack **fTrackList;
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void Init();
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void InitReader(BDataIO *source, int32 flags = 0);
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void InitWriter(BDataIO *source, const media_file_format * mfi,
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int32 flags);
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BMediaFile();
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BMediaFile(const BMediaFile&);
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BMediaFile& operator=(const BMediaFile&);
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BDataIO *fSource;
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/* fbc data and virtuals */
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uint32 _reserved_BMediaFile_[32];
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virtual status_t _Reserved_BMediaFile_0(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_1(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_2(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_3(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_4(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_5(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_6(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_7(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_8(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_9(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_10(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_11(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_12(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_13(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_14(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_15(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_16(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_17(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_18(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_19(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_20(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_21(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_22(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_23(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_24(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_25(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_26(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_27(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_28(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_29(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_30(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_31(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_32(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_33(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_34(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_35(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_36(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_37(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_38(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_39(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_40(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_41(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_42(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_43(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_44(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_45(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_46(int32 arg, ...);
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virtual status_t _Reserved_BMediaFile_47(int32 arg, ...);
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};
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#endif
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