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code reorg in prep for simplification, more format support

This commit is contained in:
Josh Coalson 2007-09-20 00:04:13 +00:00
parent ad6ede9d67
commit fe975fe175
4 changed files with 224 additions and 262 deletions
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377
src/flac/encode.c
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@ -147,11 +147,10 @@ static void print_stats(const EncoderSession *encoder_session);
static void print_error_with_init_status(const EncoderSession *e, const char *message, FLAC__StreamEncoderInitStatus init_status);
static void print_error_with_state(const EncoderSession *e, const char *message);
static void print_verify_error(EncoderSession *e);
static FLAC__bool read_little_endian_uint16(FILE *f, FLAC__uint16 *val, FLAC__bool eof_ok, const char *fn);
static FLAC__bool read_little_endian_uint32(FILE *f, FLAC__uint32 *val, FLAC__bool eof_ok, const char *fn);
static FLAC__bool read_big_endian_uint16(FILE *f, FLAC__uint16 *val, FLAC__bool eof_ok, const char *fn);
static FLAC__bool read_big_endian_uint32(FILE *f, FLAC__uint32 *val, FLAC__bool eof_ok, const char *fn);
static FLAC__bool read_sane_extended(FILE *f, FLAC__uint32 *val, FLAC__bool eof_ok, const char *fn);
static FLAC__bool read_bytes(FILE *f, FLAC__byte *buf, size_t n, FLAC__bool eof_ok, const char *fn);
static FLAC__bool read_uint16(FILE *f, FLAC__bool big_endian, FLAC__uint16 *val, const char *fn);
static FLAC__bool read_uint32(FILE *f, FLAC__bool big_endian, FLAC__uint32 *val, const char *fn);
static FLAC__bool read_sane_extended(FILE *f, FLAC__uint32 *val, const char *fn);
static FLAC__bool fskip_ahead(FILE *f, FLAC__uint64 offset);
static unsigned count_channel_mask_bits(FLAC__uint32 mask);
#if 0
@ -161,15 +160,15 @@ static FLAC__uint32 limit_channel_mask(FLAC__uint32 mask, unsigned channels);
/*
* public routines
*/
int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, wav_encode_options_t options, FLAC__bool is_aifc)
int flac__encode_aiff(FILE *infile, off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, wav_encode_options_t options, FLAC__bool is_aifc)
{
EncoderSession encoder_session;
unsigned channels = 0, bps = 0, sample_rate = 0, shift = 0, sample_frames = 0;
size_t channel_map[FLAC__MAX_CHANNELS];
FLAC__uint16 x;
FLAC__uint32 xx;
unsigned int channels= 0U, bps= 0U, shift= 0U, sample_rate= 0U, sample_frames= 0U;
size_t channel_map[FLAC__MAX_CHANNELS];
FLAC__bool got_comm_chunk= false, got_ssnd_chunk= false;
int info_align_carry= -1, info_align_zero= -1;
FLAC__bool got_comm_chunk = false, got_ssnd_chunk = false;
int info_align_carry = -1, info_align_zero = -1;
FLAC__bool is_big_endian_pcm = true;
(void)infilesize; /* silence compiler warning about unused parameter */
@ -209,42 +208,40 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
}
}
/* lookahead[] already has "FORMxxxxAIFF", do sub-chunks */
while(1) {
size_t c= 0U;
/*
* lookahead[] already has "FORMxxxxAIFF", do chunks
*/
while(!feof(infile)) {
char chunk_id[5] = { '\0', '\0', '\0', '\0', '\0' }; /* one extra byte for terminating NUL so we can also treat it like a C string */
/* chunk identifier; really conservative about behavior of fread() and feof() */
if(feof(infile) || ((c= fread(chunk_id, 1U, 4U, infile)), c==0U && feof(infile)))
break;
else if(c<4U || feof(infile)) {
if(!read_bytes(infile, (FLAC__byte*)chunk_id, 4, /*eof_ok=*/true, encoder_session.inbasefilename)) {
flac__utils_printf(stderr, 1, "%s: ERROR: incomplete chunk identifier\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
if(feof(infile))
break;
if(got_comm_chunk==false && !memcmp(chunk_id, "COMM", 4)) { /* common chunk */
if(!memcmp(chunk_id, "COMM", 4) && !got_comm_chunk) { /* common chunk */
unsigned long skip;
const FLAC__uint32 minimum_comm_size = (is_aifc? 22 : 18);
/* COMM chunk size */
if(!read_big_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
if(!read_uint32(infile, /*big_endian=*/true, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
else if(xx<minimum_comm_size) {
else if(xx < minimum_comm_size) {
flac__utils_printf(stderr, 1, "%s: ERROR: non-standard %s 'COMM' chunk has length = %u\n", encoder_session.inbasefilename, is_aifc? "AIFF-C" : "AIFF", (unsigned int)xx);
return EncoderSession_finish_error(&encoder_session);
}
else if(!is_aifc && xx!=minimum_comm_size) {
else if(!is_aifc && xx != minimum_comm_size) {
flac__utils_printf(stderr, 1, "%s: WARNING: non-standard %s 'COMM' chunk has length = %u, expected %u\n", encoder_session.inbasefilename, is_aifc? "AIFF-C" : "AIFF", (unsigned int)xx, minimum_comm_size);
if(encoder_session.treat_warnings_as_errors)
return EncoderSession_finish_error(&encoder_session);
}
skip= (xx-minimum_comm_size)+(xx & 1U);
skip = (xx-minimum_comm_size)+(xx & 1U);
/* number of channels */
if(!read_big_endian_uint16(infile, &x, false, encoder_session.inbasefilename))
if(!read_uint16(infile, /*big_endian=*/true, &x, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
else if(x==0U || x>FLAC__MAX_CHANNELS) {
else if(x ==0U || x>FLAC__MAX_CHANNELS) {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported number channels %u\n", encoder_session.inbasefilename, (unsigned int)x);
return EncoderSession_finish_error(&encoder_session);
}
@ -256,15 +253,15 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
flac__utils_printf(stderr, 1, "%s: ERROR: file has %u channels, must be 2 for --sector-align\n", encoder_session.inbasefilename, (unsigned int)x);
return EncoderSession_finish_error(&encoder_session);
}
channels= x;
channels = x;
/* number of sample frames */
if(!read_big_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
if(!read_uint32(infile, /*big_endian=*/true, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
sample_frames= xx;
sample_frames = xx;
/* bits per sample */
if(!read_big_endian_uint16(infile, &x, false, encoder_session.inbasefilename))
if(!read_uint16(infile, /*big_endian=*/true, &x, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
else if(x<4U || x>24U) {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported bits-per-sample %u\n", encoder_session.inbasefilename, (unsigned int)x);
@ -274,12 +271,12 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
flac__utils_printf(stderr, 1, "%s: ERROR: file has %u bits-per-sample, must be 16 for --sector-align\n", encoder_session.inbasefilename, (unsigned int)x);
return EncoderSession_finish_error(&encoder_session);
}
bps= x;
shift= (bps%8)? 8-(bps%8) : 0; /* SSND data is always byte-aligned, left-justified but format_input() will double-check */
bps+= shift;
bps = x;
shift = (bps%8)? 8-(bps%8) : 0; /* SSND data is always byte-aligned, left-justified but format_input() will double-check */
bps += shift;
/* sample rate */
if(!read_sane_extended(infile, &xx, false, encoder_session.inbasefilename))
if(!read_sane_extended(infile, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
else if(!FLAC__format_sample_rate_is_valid(xx)) {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported sample rate %u\n", encoder_session.inbasefilename, (unsigned int)xx);
@ -289,11 +286,11 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
flac__utils_printf(stderr, 1, "%s: ERROR: file's sample rate is %u, must be 44100 for --sector-align\n", encoder_session.inbasefilename, (unsigned int)xx);
return EncoderSession_finish_error(&encoder_session);
}
sample_rate= xx;
sample_rate = xx;
/* check compression type for AIFF-C */
if(is_aifc) {
if(!read_big_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
if(!read_uint32(infile, /*big_endian=*/true, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
if(xx == 0x736F7774) /* "sowt" */
is_big_endian_pcm = false;
@ -349,46 +346,46 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
encoder_session.skip = (FLAC__uint64)options.common.skip_specification.value.samples;
FLAC__ASSERT(!options.common.sector_align || encoder_session.skip == 0);
got_comm_chunk= true;
got_comm_chunk = true;
}
else if(got_ssnd_chunk==false && !memcmp(chunk_id, "SSND", 4)) { /* sound data chunk */
unsigned int offset= 0U, block_size= 0U, align_remainder= 0U, data_bytes;
const size_t bytes_per_frame= channels*(bps>>3);
else if(!memcmp(chunk_id, "SSND", 4) && !got_ssnd_chunk) { /* sound data chunk */
unsigned offset = 0, block_size = 0, align_remainder = 0, data_bytes;
FLAC__uint64 total_samples_in_input, trim = 0;
FLAC__bool pad= false;
FLAC__bool pad = false;
const size_t bytes_per_wide_sample = channels * (bps >> 3);
if(got_comm_chunk==false) {
if(got_comm_chunk == false) {
flac__utils_printf(stderr, 1, "%s: ERROR: got 'SSND' chunk before 'COMM' chunk\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
/* SSND chunk size */
if(!read_big_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
if(!read_uint32(infile, /*big_endian=*/true, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
if(options.common.ignore_chunk_sizes) {
FLAC__ASSERT(!options.common.sector_align);
data_bytes = (unsigned)(-(int)bytes_per_frame); /* max out data_bytes; we'll use EOF as signal to stop reading */
data_bytes = (unsigned)(-(int)bytes_per_wide_sample); /* max out data_bytes; we'll use EOF as signal to stop reading */
}
else {
data_bytes= xx;
data_bytes = xx;
data_bytes-= 8U; /* discount the offset and block size fields */
}
pad= (data_bytes & 1U) ? true : false;
pad = (data_bytes & 1U) ? true : false;
/* offset */
if(!read_big_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
if(!read_uint32(infile, /*big_endian=*/true, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
offset= xx;
offset = xx;
data_bytes-= offset;
/* block size */
if(!read_big_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
if(!read_uint32(infile, /*big_endian=*/true, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
else if(xx!=0U) {
flac__utils_printf(stderr, 1, "%s: ERROR: block size is %u; must be 0\n", encoder_session.inbasefilename, (unsigned int)xx);
return EncoderSession_finish_error(&encoder_session);
}
block_size= xx;
block_size = xx;
/* skip any SSND offset bytes */
FLAC__ASSERT(offset<=LONG_MAX);
@ -396,14 +393,14 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
flac__utils_printf(stderr, 1, "%s: ERROR: skipping offset in SSND chunk\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
if(data_bytes!=(sample_frames*bytes_per_frame)) {
if(data_bytes!=(sample_frames*bytes_per_wide_sample)) {
flac__utils_printf(stderr, 1, "%s: ERROR: SSND chunk size inconsistent with sample frame count\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
/* *options.common.align_reservoir_samples will be 0 unless --sector-align is used */
FLAC__ASSERT(options.common.sector_align || *options.common.align_reservoir_samples == 0);
total_samples_in_input = data_bytes / bytes_per_frame + *options.common.align_reservoir_samples;
total_samples_in_input = data_bytes / bytes_per_wide_sample + *options.common.align_reservoir_samples;
/*
* now that we know the input size, canonicalize the
@ -415,30 +412,30 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
FLAC__ASSERT(!options.common.sector_align || encoder_session.until == 0);
if(encoder_session.skip>0U) {
if(!fskip_ahead(infile, encoder_session.skip*bytes_per_frame)) {
if(!fskip_ahead(infile, encoder_session.skip*bytes_per_wide_sample)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping samples\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
}
data_bytes-= (unsigned int)encoder_session.skip*bytes_per_frame; /*@@@ WATCHOUT: 4GB limit */
data_bytes-= (unsigned int)encoder_session.skip*bytes_per_wide_sample; /*@@@ WATCHOUT: 4GB limit */
if(options.common.ignore_chunk_sizes) {
encoder_session.total_samples_to_encode= 0;
encoder_session.total_samples_to_encode = 0;
flac__utils_printf(stderr, 2, "(No runtime statistics possible; please wait for encoding to finish...)\n");
FLAC__ASSERT(0 == encoder_session.until);
}
else {
encoder_session.total_samples_to_encode= total_samples_in_input - encoder_session.skip;
encoder_session.total_samples_to_encode = total_samples_in_input - encoder_session.skip;
}
if(encoder_session.until > 0) {
trim = total_samples_in_input - encoder_session.until;
FLAC__ASSERT(total_samples_in_input > 0);
FLAC__ASSERT(!options.common.sector_align);
data_bytes-= (unsigned int)trim*bytes_per_frame;
data_bytes-= (unsigned int)trim*bytes_per_wide_sample;
encoder_session.total_samples_to_encode-= trim;
}
if(options.common.sector_align) {
align_remainder= (unsigned int)(encoder_session.total_samples_to_encode % 588U);
align_remainder = (unsigned int)(encoder_session.total_samples_to_encode % 588U);
if(options.common.is_last_file)
encoder_session.total_samples_to_encode+= (588U-align_remainder); /* will pad with zeroes */
else
@ -446,7 +443,7 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
}
/* +54 for the size of the AIFF headers; this is just an estimate for the progress indicator and doesn't need to be exact */
encoder_session.unencoded_size= encoder_session.total_samples_to_encode*bytes_per_frame+54;
encoder_session.unencoded_size = encoder_session.total_samples_to_encode*bytes_per_wide_sample+54;
if(!EncoderSession_init_encoder(&encoder_session, options.common, /*channel_mask=*/0, channels, bps-shift, sample_rate, options.foreign_metadata, /*flac_decoder_data=*/0))
return EncoderSession_finish_error(&encoder_session);
@ -463,18 +460,18 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
/* decrement the data_bytes counter if we need to align the file */
if(options.common.sector_align) {
if(options.common.is_last_file)
*options.common.align_reservoir_samples= 0U;
*options.common.align_reservoir_samples = 0U;
else {
*options.common.align_reservoir_samples= align_remainder;
data_bytes-= (*options.common.align_reservoir_samples)*bytes_per_frame;
*options.common.align_reservoir_samples = align_remainder;
data_bytes-= (*options.common.align_reservoir_samples)*bytes_per_wide_sample;
}
}
/* now do from the file */
while(data_bytes>0) {
size_t bytes_read= fread(ucbuffer_, 1U, min(data_bytes, CHUNK_OF_SAMPLES*bytes_per_frame), infile);
size_t bytes_read = fread(ucbuffer_, 1U, min(data_bytes, CHUNK_OF_SAMPLES*bytes_per_wide_sample), infile);
if(bytes_read==0U) {
if(bytes_read == 0U) {
if(ferror(infile)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
@ -488,16 +485,16 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
if(encoder_session.treat_warnings_as_errors)
return EncoderSession_finish_error(&encoder_session);
}
data_bytes= 0;
data_bytes = 0;
}
}
else {
if(bytes_read % bytes_per_frame != 0U) {
if(bytes_read % bytes_per_wide_sample != 0U) {
flac__utils_printf(stderr, 1, "%s: ERROR: got partial sample\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
else {
unsigned int frames= bytes_read/bytes_per_frame;
unsigned int frames = bytes_read/bytes_per_wide_sample;
if(!format_input(input_, frames, is_big_endian_pcm, /*is_unsigned_samples=*/false, channels, bps, shift, channel_map))
return EncoderSession_finish_error(&encoder_session);
@ -513,7 +510,7 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
if(trim>0) {
FLAC__ASSERT(!options.common.sector_align);
if(!fskip_ahead(infile, trim*bytes_per_frame)) {
if(!fskip_ahead(infile, trim*bytes_per_wide_sample)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping samples\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
@ -522,13 +519,13 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
/* now read unaligned samples into reservoir or pad with zeroes if necessary */
if(options.common.sector_align) {
if(options.common.is_last_file) {
unsigned int pad_frames= 588U-align_remainder;
unsigned int pad_frames = 588U-align_remainder;
if(pad_frames<588U) {
unsigned int i;
info_align_zero= pad_frames;
for(i= 0U; i<channels; ++i)
info_align_zero = pad_frames;
for(i = 0U; i<channels; ++i)
memset(input_[i], 0, sizeof(input_[0][0])*pad_frames);
if(!EncoderSession_process(&encoder_session, (const FLAC__int32 *const *)input_, pad_frames)) {
@ -539,20 +536,20 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
}
else {
if(*options.common.align_reservoir_samples > 0) {
size_t bytes_read= fread(ucbuffer_, 1U, (*options.common.align_reservoir_samples)*bytes_per_frame, infile);
size_t bytes_read = fread(ucbuffer_, 1U, (*options.common.align_reservoir_samples)*bytes_per_wide_sample, infile);
FLAC__ASSERT(CHUNK_OF_SAMPLES>=588U);
if(bytes_read==0U && ferror(infile)) {
if(bytes_read == 0U && ferror(infile)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
else if(bytes_read != (*options.common.align_reservoir_samples) * bytes_per_frame) {
else if(bytes_read != (*options.common.align_reservoir_samples) * bytes_per_wide_sample) {
flac__utils_printf(stderr, 1, "%s: WARNING: unexpected EOF; read %u bytes; expected %u samples, got %u samples\n", encoder_session.inbasefilename, (unsigned int)bytes_read, (unsigned int)encoder_session.total_samples_to_encode, (unsigned int)encoder_session.samples_written);
if(encoder_session.treat_warnings_as_errors)
return EncoderSession_finish_error(&encoder_session);
}
else {
info_align_carry= *options.common.align_reservoir_samples;
info_align_carry = *options.common.align_reservoir_samples;
if(!format_input(options.common.align_reservoir, *options.common.align_reservoir_samples, is_big_endian_pcm, /*is_unsigned_samples=*/false, channels, bps, shift, channel_map))
return EncoderSession_finish_error(&encoder_session);
}
@ -560,45 +557,50 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
}
}
if(pad==true) {
if(pad == true) {
unsigned char tmp;
if(fread(&tmp, 1U, 1U, infile)<1U) {
if(fread(&tmp, 1U, 1U, infile) < 1U) {
flac__utils_printf(stderr, 1, "%s: ERROR during read of SSND pad byte\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
}
got_ssnd_chunk= true;
got_ssnd_chunk = true;
}
else { /* other chunk */
else {
if(!memcmp(chunk_id, "SSND", 4) && !got_comm_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: got 'SSND' chunk before 'COMM' chunk\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
if(!options.foreign_metadata) {
if(!memcmp(chunk_id, "COMM", 4))
flac__utils_printf(stderr, 1, "%s: WARNING: skipping extra 'COMM' chunk (use --keep-foreign-metadata to keep)\n", encoder_session.inbasefilename);
else if(!memcmp(chunk_id, "SSND", 4))
flac__utils_printf(stderr, 1, "%s: WARNING: skipping extra 'SSND' chunk (use --keep-foreign-metadata to keep)\n", encoder_session.inbasefilename);
else if(!options.foreign_metadata)
else
flac__utils_printf(stderr, 1, "%s: WARNING: skipping unknown chunk '%s' (use --keep-foreign-metadata to keep)\n", encoder_session.inbasefilename, chunk_id);
if(encoder_session.treat_warnings_as_errors)
return EncoderSession_finish_error(&encoder_session);
}
/* chunk size */
if(!read_big_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
if(!read_uint32(infile, /*big_endian=*/true, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
else {
unsigned long skip= xx+(xx & 1U);
unsigned long skip = xx+(xx & 1U);
FLAC__ASSERT(skip<=LONG_MAX);
if(!fskip_ahead(infile, skip)) {
fprintf(stderr, "%s: ERROR during read while skipping over unknown chunk\n", encoder_session.inbasefilename);
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping over unsupported chunk\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
}
}
}
if(got_ssnd_chunk==false && sample_frames!=0U) {
if(got_ssnd_chunk == false && sample_frames != 0U) {
flac__utils_printf(stderr, 1, "%s: ERROR: missing SSND chunk\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
@ -606,22 +608,20 @@ int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, con
return EncoderSession_finish_ok(&encoder_session, info_align_carry, info_align_zero, options.foreign_metadata);
}
int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, wav_encode_options_t options)
int flac__encode_wave(FILE *infile, off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, wav_encode_options_t options)
{
EncoderSession encoder_session;
FLAC__bool is_unsigned_samples = false;
unsigned channels = 0, bps = 0, sample_rate = 0, shift = 0;
size_t bytes_read;
size_t channel_map[FLAC__MAX_CHANNELS];
FLAC__uint16 x, format; /* format is the wFormatTag word from the 'fmt ' chunk */
FLAC__uint32 xx, channel_mask = 0;
FLAC__bool got_fmt_chunk = false, got_data_chunk = false;
unsigned align_remainder = 0;
int info_align_carry = -1, info_align_zero = -1;
(void)infilesize;
(void)lookahead;
(void)lookahead_length;
(void)infilesize; /* silence compiler warning about unused parameter */
(void)lookahead; /* silence compiler warning about unused parameter */
(void)lookahead_length; /* silence compiler warning about unused parameter */
if(!
EncoderSession_construct(
@ -657,14 +657,18 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
}
/*
* lookahead[] already has "RIFFxxxxWAVE", do sub-chunks
* lookahead[] already has "RIFFxxxxWAVE", do chunks
*/
while(!feof(infile)) {
if(!read_little_endian_uint32(infile, &xx, true, encoder_session.inbasefilename))
char chunk_id[5] = { '\0', '\0', '\0', '\0', '\0' }; /* one extra byte for terminating NUL so we can also treat it like a C string */
if(!read_bytes(infile, (FLAC__byte*)chunk_id, 4, /*eof_ok=*/true, encoder_session.inbasefilename)) {
flac__utils_printf(stderr, 1, "%s: ERROR: incomplete chunk identifier\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
if(feof(infile))
break;
if(xx == 0x20746d66 && !got_fmt_chunk) { /* "fmt " */
if(!memcmp(chunk_id, "fmt ", 4) && !got_fmt_chunk) { /* format chunk */
unsigned block_align, data_bytes;
/* see
@ -673,7 +677,7 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/audio_r/hh/Audio_r/aud-prop_d40f094e-44f9-4baa-8a15-03e4fb369501.xml.asp
*
* WAVEFORMAT is
* 4 byte: subchunk size
* 4 byte: chunk size
* 2 byte: format type: 1 for WAVE_FORMAT_PCM, 65534 for WAVE_FORMAT_EXTENSIBLE
* 2 byte: # channels
* 4 byte: sample rate (Hz)
@ -698,23 +702,23 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
* Data is supposed to be unsigned for bps <= 8 else signed.
*/
/* fmt sub-chunk size */
if(!read_little_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
/* fmt chunk size */
if(!read_uint32(infile, /*big_endian=*/false, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
data_bytes = xx;
if(data_bytes < 16) {
flac__utils_printf(stderr, 1, "%s: ERROR: found non-standard 'fmt ' sub-chunk which has length = %u\n", encoder_session.inbasefilename, data_bytes);
flac__utils_printf(stderr, 1, "%s: ERROR: found non-standard 'fmt ' chunk which has length = %u\n", encoder_session.inbasefilename, data_bytes);
return EncoderSession_finish_error(&encoder_session);
}
/* format code */
if(!read_little_endian_uint16(infile, &format, false, encoder_session.inbasefilename))
if(!read_uint16(infile, /*big_endian=*/false, &format, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
if(format != 1 /*WAVE_FORMAT_PCM*/ && format != 65534 /*WAVE_FORMAT_EXTENSIBLE*/) {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported format type %u\n", encoder_session.inbasefilename, (unsigned)format);
return EncoderSession_finish_error(&encoder_session);
}
/* number of channels */
if(!read_little_endian_uint16(infile, &x, false, encoder_session.inbasefilename))
if(!read_uint16(infile, /*big_endian=*/false, &x, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
channels = (unsigned)x;
if(channels == 0 || channels > FLAC__MAX_CHANNELS) {
@ -726,7 +730,7 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
return EncoderSession_finish_error(&encoder_session);
}
/* sample rate */
if(!read_little_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
if(!read_uint32(infile, /*big_endian=*/false, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
sample_rate = xx;
if(!FLAC__format_sample_rate_is_valid(sample_rate)) {
@ -738,14 +742,14 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
return EncoderSession_finish_error(&encoder_session);
}
/* avg bytes per second (ignored) */
if(!read_little_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
if(!read_uint32(infile, /*big_endian=*/false, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
/* block align */
if(!read_little_endian_uint16(infile, &x, false, encoder_session.inbasefilename))
if(!read_uint16(infile, /*big_endian=*/false, &x, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
block_align = (unsigned)x;
/* bits per sample */
if(!read_little_endian_uint16(infile, &x, false, encoder_session.inbasefilename))
if(!read_uint16(infile, /*big_endian=*/false, &x, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
bps = (unsigned)x;
is_unsigned_samples = (bps <= 8);
@ -796,14 +800,14 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
return EncoderSession_finish_error(&encoder_session);
}
/* cbSize */
if(!read_little_endian_uint16(infile, &x, false, encoder_session.inbasefilename))
if(!read_uint16(infile, /*big_endian=*/false, &x, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
if(x < 22) {
flac__utils_printf(stderr, 1, "%s: ERROR: invalid WAVEFORMATEXTENSIBLE chunk with cbSize %u\n", encoder_session.inbasefilename, (unsigned)x);
return EncoderSession_finish_error(&encoder_session);
}
/* valid bps */
if(!read_little_endian_uint16(infile, &x, false, encoder_session.inbasefilename))
if(!read_uint16(infile, /*big_endian=*/false, &x, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
if((unsigned)x > bps) {
flac__utils_printf(stderr, 1, "%s: ERROR: invalid WAVEFORMATEXTENSIBLE chunk with wValidBitsPerSample (%u) > wBitsPerSample (%u)\n", encoder_session.inbasefilename, (unsigned)x, bps);
@ -811,7 +815,7 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
}
shift = bps - (unsigned)x;
/* channel mask */
if(!read_little_endian_uint32(infile, &channel_mask, false, encoder_session.inbasefilename))
if(!read_uint32(infile, /*big_endian=*/false, &channel_mask, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
/* for mono/stereo and unassigned channels, we fake the mask */
if(channel_mask == 0) {
@ -872,7 +876,7 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
}
#endif
else {
flac__utils_printf(stderr, 1, "%s: ERROR: WAVEFORMATEXTENSIBLE chunk with unsupported channel mask=0x%04X\n", encoder_session.inbasefilename, (unsigned)channel_mask);
flac__utils_printf(stderr, 1, "%s: ERROR: WAVEFORMATEXTENSIBLE chunk with unsupported channel mask=0x%04X\n\nUse --channel-map=none option to store channels in current order; FLAC files\nmust also be decoded with --channel-map=none to restore correct order.\n", encoder_session.inbasefilename, (unsigned)channel_mask);
return EncoderSession_finish_error(&encoder_session);
}
if(!options.common.channel_map_none) {
@ -895,7 +899,7 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
#endif
}
/* first part of GUID */
if(!read_little_endian_uint16(infile, &x, false, encoder_session.inbasefilename))
if(!read_uint16(infile, /*big_endian=*/false, &x, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
if(x != 1) {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported WAVEFORMATEXTENSIBLE chunk with non-PCM format %u\n", encoder_session.inbasefilename, (unsigned)x);
@ -913,7 +917,7 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
return EncoderSession_finish_error(&encoder_session);
}
/* skip any extra data in the fmt sub-chunk */
/* skip any extra data in the fmt chunk */
if(!fskip_ahead(infile, data_bytes)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping over extra 'fmt' data\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
@ -930,14 +934,14 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
got_fmt_chunk = true;
}
else if(xx == 0x61746164 && !got_data_chunk && got_fmt_chunk) { /* "data" */
else if(!memcmp(chunk_id, "data", 4) && !got_data_chunk && got_fmt_chunk) { /* data chunk */
unsigned align_remainder = 0, data_bytes;
FLAC__uint64 total_samples_in_input, trim = 0;
FLAC__bool pad = false;
const size_t bytes_per_wide_sample = channels * (bps >> 3);
unsigned data_bytes;
/* data size */
if(!read_little_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
if(!read_uint32(infile, /*big_endian=*/false, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
if(options.common.ignore_chunk_sizes) {
FLAC__ASSERT(!options.common.sector_align);
@ -946,7 +950,7 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
else {
data_bytes = xx;
if(0 == data_bytes) {
flac__utils_printf(stderr, 1, "%s: ERROR: 'data' subchunk has size of 0\n", encoder_session.inbasefilename);
flac__utils_printf(stderr, 1, "%s: ERROR: 'data' chunk has size of 0\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
}
@ -1029,7 +1033,7 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
* now do from the file
*/
while(data_bytes > 0) {
bytes_read = fread(ucbuffer_, sizeof(unsigned char), min(data_bytes, CHUNK_OF_SAMPLES * bytes_per_wide_sample), infile);
size_t bytes_read = fread(ucbuffer_, sizeof(unsigned char), min(data_bytes, CHUNK_OF_SAMPLES * bytes_per_wide_sample), infile);
if(bytes_read == 0) {
if(ferror(infile)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read\n", encoder_session.inbasefilename);
@ -1095,6 +1099,7 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
}
else {
if(*options.common.align_reservoir_samples > 0) {
size_t bytes_read;
FLAC__ASSERT(CHUNK_OF_SAMPLES >= 588);
bytes_read = fread(ucbuffer_, sizeof(unsigned char), (*options.common.align_reservoir_samples) * bytes_per_wide_sample, infile);
if(bytes_read == 0 && ferror(infile)) {
@ -1127,31 +1132,31 @@ int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, con
got_data_chunk = true;
}
else {
if(xx == 0x61746164 && !got_fmt_chunk) { /* "data" */
flac__utils_printf(stderr, 1, "%s: ERROR: got 'data' sub-chunk before 'fmt' sub-chunk\n", encoder_session.inbasefilename);
if(!memcmp(chunk_id, "data", 4) && !got_fmt_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: got 'data' chunk before 'fmt' chunk\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
if(!options.foreign_metadata) {
if(xx == 0x20746d66 && got_fmt_chunk) /* "fmt " */
flac__utils_printf(stderr, 1, "%s: WARNING: skipping extra 'fmt ' sub-chunk (use --keep-foreign-metadata to keep)\n", encoder_session.inbasefilename);
else if(xx == 0x61746164) /* "data" */
flac__utils_printf(stderr, 1, "%s: WARNING: skipping extra 'data' sub-chunk (use --keep-foreign-metadata to keep)\n", encoder_session.inbasefilename);
if(!memcmp(chunk_id, "fmt ", 4) && got_fmt_chunk)
flac__utils_printf(stderr, 1, "%s: WARNING: skipping extra 'fmt ' chunk (use --keep-foreign-metadata to keep)\n", encoder_session.inbasefilename);
else if(!memcmp(chunk_id, "data", 4))
flac__utils_printf(stderr, 1, "%s: WARNING: skipping extra 'data' chunk (use --keep-foreign-metadata to keep)\n", encoder_session.inbasefilename);
else
flac__utils_printf(stderr, 1, "%s: WARNING: skipping unknown sub-chunk '%c%c%c%c' (use --keep-foreign-metadata to keep)\n", encoder_session.inbasefilename, (char)(xx&255), (char)((xx>>8)&255), (char)((xx>>16)&255), (char)(xx>>24));
flac__utils_printf(stderr, 1, "%s: WARNING: skipping unknown chunk '%s' (use --keep-foreign-metadata to keep)\n", encoder_session.inbasefilename, chunk_id);
if(encoder_session.treat_warnings_as_errors)
return EncoderSession_finish_error(&encoder_session);
}
/* sub-chunk size */
if(!read_little_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
/* chunk size */
if(!read_uint32(infile, /*big_endian=*/false, &xx, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
else {
unsigned long skip = xx+(xx & 1U);
FLAC__ASSERT(skip<=LONG_MAX);
if(!fskip_ahead(infile, skip)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping over unsupported sub-chunk\n", encoder_session.inbasefilename);
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping over unsupported chunk\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
}
@ -1632,6 +1637,9 @@ FLAC__bool EncoderSession_construct(EncoderSession *e, FLAC__bool use_ogg, FLAC_
e->outfilename = outfilename;
e->skip = 0; /* filled in later after the sample_rate is known */
e->channels = 0;
e->bits_per_sample = 0;
e->sample_rate = 0;
e->unencoded_size = 0;
e->total_samples_to_encode = 0;
e->bytes_written = 0;
@ -2241,7 +2249,7 @@ FLAC__bool convert_to_seek_table_template(const char *requested_seek_points, int
/*@@@@@@ workaround ogg bug: too many seekpoints makes table not fit in one page */
if(e->use_ogg && e->total_samples_to_encode > 0 && e->total_samples_to_encode / e->sample_rate / 10 > 230)
requested_seek_points = "230x;";
else
else
#endif
requested_seek_points = "10s;";
num_requested_seek_points = 1;
@ -2756,9 +2764,9 @@ void print_verify_error(EncoderSession *e)
flac__utils_printf(stderr, 1, "Verify FAILED! Do not trust %s\n", e->outfilename);
}
FLAC__bool read_little_endian_uint16(FILE *f, FLAC__uint16 *val, FLAC__bool eof_ok, const char *fn)
FLAC__bool read_bytes(FILE *f, FLAC__byte *buf, size_t n, FLAC__bool eof_ok, const char *fn)
{
size_t bytes_read = fread(val, 1, 2, f);
size_t bytes_read = fread(buf, 1, n, f);
if(bytes_read == 0) {
if(!eof_ok) {
@ -2768,111 +2776,62 @@ FLAC__bool read_little_endian_uint16(FILE *f, FLAC__uint16 *val, FLAC__bool eof_
else
return true;
}
else if(bytes_read < 2) {
if(bytes_read < n) {
flac__utils_printf(stderr, 1, "%s: ERROR: unexpected EOF\n", fn);
return false;
}
else {
if(is_big_endian_host_) {
FLAC__byte tmp, *b = (FLAC__byte*)val;
tmp = b[1]; b[1] = b[0]; b[0] = tmp;
}
return true;
}
}
FLAC__bool read_little_endian_uint32(FILE *f, FLAC__uint32 *val, FLAC__bool eof_ok, const char *fn)
{
size_t bytes_read = fread(val, 1, 4, f);
if(bytes_read == 0) {
if(!eof_ok) {
flac__utils_printf(stderr, 1, "%s: ERROR: unexpected EOF\n", fn);
return false;
}
else
return true;
}
else if(bytes_read < 4) {
flac__utils_printf(stderr, 1, "%s: ERROR: unexpected EOF\n", fn);
return false;
}
else {
if(is_big_endian_host_) {
FLAC__byte tmp, *b = (FLAC__byte*)val;
tmp = b[3]; b[3] = b[0]; b[0] = tmp;
tmp = b[2]; b[2] = b[1]; b[1] = tmp;
}
return true;
}
}
FLAC__bool read_big_endian_uint16(FILE *f, FLAC__uint16 *val, FLAC__bool eof_ok, const char *fn)
{
unsigned char buf[4];
size_t bytes_read= fread(buf, 1, 2, f);
if(bytes_read==0U && eof_ok)
return true;
else if(bytes_read<2U) {
flac__utils_printf(stderr, 1, "%s: ERROR: unexpected EOF\n", fn);
return false;
}
/* this is independent of host endianness */
*val= (FLAC__uint16)(buf[0])<<8 | buf[1];
return true;
}
FLAC__bool read_big_endian_uint32(FILE *f, FLAC__uint32 *val, FLAC__bool eof_ok, const char *fn)
FLAC__bool read_uint16(FILE *f, FLAC__bool big_endian, FLAC__uint16 *val, const char *fn)
{
unsigned char buf[4];
size_t bytes_read= fread(buf, 1, 4, f);
if(bytes_read==0U && eof_ok)
return true;
else if(bytes_read<4U) {
flac__utils_printf(stderr, 1, "%s: ERROR: unexpected EOF\n", fn);
if(!read_bytes(f, (FLAC__byte*)val, 2, /*eof_ok=*/false, fn))
return false;
if(is_big_endian_host_ != big_endian) {
FLAC__byte tmp, *b = (FLAC__byte*)val;
tmp = b[1]; b[1] = b[0]; b[0] = tmp;
}
/* this is independent of host endianness */
*val= (FLAC__uint32)(buf[0])<<24 | (FLAC__uint32)(buf[1])<<16 |
(FLAC__uint32)(buf[2])<<8 | buf[3];
return true;
}
FLAC__bool read_sane_extended(FILE *f, FLAC__uint32 *val, FLAC__bool eof_ok, const char *fn)
FLAC__bool read_uint32(FILE *f, FLAC__bool big_endian, FLAC__uint32 *val, const char *fn)
{
if(!read_bytes(f, (FLAC__byte*)val, 4, /*eof_ok=*/false, fn))
return false;
if(is_big_endian_host_ != big_endian) {
FLAC__byte tmp, *b = (FLAC__byte*)val;
tmp = b[3]; b[3] = b[0]; b[0] = tmp;
tmp = b[2]; b[2] = b[1]; b[1] = tmp;
}
return true;
}
FLAC__bool read_sane_extended(FILE *f, FLAC__uint32 *val, const char *fn)
/* Read an IEEE 754 80-bit (aka SANE) extended floating point value from 'f',
* convert it into an integral value and store in 'val'. Return false if only
* between 1 and 9 bytes remain in 'f', if 0 bytes remain in 'f' and 'eof_ok' is
* false, or if the value is negative, between zero and one, or too large to be
* represented by 'val'; return true otherwise.
* between 1 and 9 bytes remain in 'f', if 0 bytes remain in 'f', or if the
* value is negative, between zero and one, or too large to be represented by
* 'val'; return true otherwise.
*/
{
unsigned int i;
unsigned char buf[10];
size_t bytes_read= fread(buf, 1U, 10U, f);
FLAC__int16 e= ((FLAC__uint16)(buf[0])<<8 | (FLAC__uint16)(buf[1]))-0x3FFF;
FLAC__int16 shift= 63-e;
FLAC__uint64 p= 0U;
FLAC__byte buf[10];
FLAC__uint64 p = 0;
FLAC__int16 e;
FLAC__int16 shift;
if(bytes_read==0U && eof_ok)
return true;
else if(bytes_read<10U) {
flac__utils_printf(stderr, 1, "%s: ERROR: unexpected EOF\n", fn);
if(!read_bytes(f, buf, sizeof(buf), /*eof_ok=*/false, fn))
return false;
}
else if((buf[0]>>7)==1U || e<0 || e>63) {
e = ((FLAC__uint16)(buf[0])<<8 | (FLAC__uint16)(buf[1]))-0x3FFF;
shift = 63-e;
if((buf[0]>>7)==1U || e<0 || e>63) {
flac__utils_printf(stderr, 1, "%s: ERROR: invalid floating-point value\n", fn);
return false;
}
for(i= 0U; i<8U; ++i)
p|= (FLAC__uint64)(buf[i+2])<<(56U-i*8);
*val= (FLAC__uint32)((p>>shift)+(p>>(shift-1) & 0x1));
for(i = 0; i < 8; ++i)
p |= (FLAC__uint64)(buf[i+2])<<(56U-i*8);
*val = (FLAC__uint32)((p>>shift)+(p>>(shift-1) & 0x1));
return true;
}

4
src/flac/encode.h
View File

@ -114,8 +114,8 @@ typedef struct {
encode_options_t common;
} flac_encode_options_t;
int flac__encode_aif(FILE *infile, off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, wav_encode_options_t options, FLAC__bool is_aifc);
int flac__encode_wav(FILE *infile, off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, wav_encode_options_t options);
int flac__encode_aiff(FILE *infile, off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, wav_encode_options_t options, FLAC__bool is_aifc);
int flac__encode_wave(FILE *infile, off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, wav_encode_options_t options);
int flac__encode_raw(FILE *infile, off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, raw_encode_options_t options);
int flac__encode_flac(FILE *infile, off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, flac_encode_options_t options, FLAC__bool input_is_ogg);

103
src/flac/main.c
View File

@ -57,8 +57,6 @@
# include "share/getopt.h"
#endif
typedef enum { RAW, WAV, AIF, FLAC, OGGFLAC } FileFormat;
static int do_it(void);
static FLAC__bool init_options(void);
@ -1161,6 +1159,9 @@ static void usage_summary(void)
printf(" Testing: flac -t [<general-options>] [FLACFILE [...]]\n");
printf("Analyzing: flac -a [<general-options>] [<analysis-options>] [FLACFILE [...]]\n");
printf("\n");
printf("Be sure to read the list of known bugs at:\n");
printf("http://flac.sourceforge.net/documentation_bugs.html\n");
printf("\n");
}
void short_usage(void)
@ -1170,6 +1171,9 @@ void short_usage(void)
printf("This is the short help; for all options use 'flac --help'; for even more\n");
printf("instructions use 'flac --explain'\n");
printf("\n");
printf("Be sure to read the list of known bugs at:\n");
printf("http://flac.sourceforge.net/documentation_bugs.html\n");
printf("\n");
printf("To encode:\n");
printf(" flac [-#] [INPUTFILE [...]]\n");
printf("\n");
@ -1613,8 +1617,8 @@ void show_explain(void)
void format_mistake(const char *infilename, FileFormat wrong, FileFormat right)
{
/* WATCHOUT: indexed by FileFormat */
static const char * const ff[] = { "raw", "WAVE", "AIFF", "FLAC", "Ogg FLAC" };
flac__utils_printf(stderr, 1, "WARNING: %s is not a %s file; treating as a %s file\n", infilename, ff[wrong], ff[right]);
static const char * const ff[] = { " raw", " WAVE", "n AIFF", "n AIFF-C", " FLAC", "n Ogg FLAC" };
flac__utils_printf(stderr, 1, "WARNING: %s is not a%s file; treating as a%s file\n", infilename, ff[wrong], ff[right]);
}
int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file)
@ -1622,8 +1626,7 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
FILE *encode_infile;
FLAC__byte lookahead[12];
unsigned lookahead_length = 0;
FileFormat input_format = RAW;
FLAC__bool is_aifc = false;
FileFormat input_format = FORMAT_RAW;
int retval;
off_t infilesize;
encode_options_t common_options;
@ -1651,28 +1654,28 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
if(!option_values.force_raw_format) {
/* first set format based on name */
if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".wav"))
input_format = WAV;
input_format = FORMAT_WAVE;
else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".aif"))
input_format = AIF;
input_format = FORMAT_AIFF;
else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".aiff"))
input_format = AIF;
input_format = FORMAT_AIFF;
else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".flac"))
input_format = FLAC;
input_format = FORMAT_FLAC;
else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".oga"))
input_format = OGGFLAC;
input_format = FORMAT_OGGFLAC;
else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
input_format = OGGFLAC;
input_format = FORMAT_OGGFLAC;
/* attempt to guess the file type based on the first 12 bytes */
if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
if(input_format != RAW) {
format_mistake(infilename, input_format, RAW);
if(input_format != FORMAT_RAW) {
format_mistake(infilename, input_format, FORMAT_RAW);
if(option_values.treat_warnings_as_errors) {
conditional_fclose(encode_infile);
return 1;
}
}
input_format = RAW;
input_format = FORMAT_RAW;
}
else {
if(!strncmp((const char *)lookahead, "ID3", 3)) {
@ -1680,27 +1683,25 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
return 1;
}
else if(!strncmp((const char *)lookahead, "RIFF", 4) && !strncmp((const char *)lookahead+8, "WAVE", 4))
input_format = WAV;
input_format = FORMAT_WAVE;
else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFF", 4))
input_format = AIF;
else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFC", 4)) {
input_format = AIF;
is_aifc = true;
}
input_format = FORMAT_AIFF;
else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFC", 4))
input_format = FORMAT_AIFF_C;
else if(!memcmp(lookahead, FLAC__STREAM_SYNC_STRING, sizeof(FLAC__STREAM_SYNC_STRING)))
input_format = FLAC;
input_format = FORMAT_FLAC;
/* this could be made more accurate by looking at the first packet */
else if(!memcmp(lookahead, "OggS", 4))
input_format = OGGFLAC;
input_format = FORMAT_OGGFLAC;
else {
if(input_format != RAW) {
format_mistake(infilename, input_format, RAW);
if(input_format != FORMAT_RAW) {
format_mistake(infilename, input_format, FORMAT_RAW);
if(option_values.treat_warnings_as_errors) {
conditional_fclose(encode_infile);
return 1;
}
}
input_format = RAW;
input_format = FORMAT_RAW;
}
}
}
@ -1710,7 +1711,7 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
conditional_fclose(encode_infile);
return usage_error("ERROR: --keep-foreign-metadata cannot be used when encoding from stdin or to stdout\n");
}
if(input_format != WAV && input_format != AIF) {
if(input_format != FORMAT_WAVE && input_format != FORMAT_AIFF && input_format != FORMAT_AIFF_C) {
conditional_fclose(encode_infile);
return usage_error("ERROR: --keep-foreign-metadata can only be used with WAVE or AIFF input\n");
}
@ -1721,7 +1722,7 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
* Use grabbag__file_get_filesize() as a cheap way to check.
*/
if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
if(input_format == FLAC) {
if(input_format == FORMAT_FLAC) {
/* need more detailed error message when re-flac'ing to avoid confusing the user */
flac__utils_printf(stderr, 1,
"ERROR: output file %s already exists.\n\n"
@ -1732,7 +1733,7 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
outfilename
);
}
else if(input_format == OGGFLAC) {
else if(input_format == FORMAT_OGGFLAC) {
/* need more detailed error message when re-flac'ing to avoid confusing the user */
flac__utils_printf(stderr, 1,
"ERROR: output file %s already exists.\n\n"
@ -1750,7 +1751,7 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
}
if(option_values.format_input_size >= 0) {
if (input_format != RAW || infilesize >= 0) {
if (input_format != FORMAT_RAW || infilesize >= 0) {
flac__utils_printf(stderr, 1, "ERROR: can only use --input-size when encoding raw samples from stdin\n");
conditional_fclose(encode_infile);
return 1;
@ -1760,18 +1761,18 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
}
}
if(option_values.sector_align && (input_format == FLAC || input_format == OGGFLAC)) {
if(option_values.sector_align && (input_format == FORMAT_FLAC || input_format == FORMAT_OGGFLAC)) {
flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input file is FLAC or Ogg FLAC\n");
conditional_fclose(encode_infile);
return 1;
}
if(option_values.sector_align && input_format == RAW && infilesize < 0) {
if(option_values.sector_align && input_format == FORMAT_RAW && infilesize < 0) {
flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input size is unknown\n");
conditional_fclose(encode_infile);
return 1;
}
if(input_format == RAW) {
if(input_format == FORMAT_RAW) {
if(option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0 || option_values.format_channels < 0 || option_values.format_bps < 0 || option_values.format_sample_rate < 0) {
conditional_fclose(encode_infile);
return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --sign, --channels, --bps, and --sample-rate\n");
@ -1853,7 +1854,7 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
strcat(internal_outfilename, tmp_suffix);
}
if(input_format == RAW) {
if(input_format == FORMAT_RAW) {
raw_encode_options_t options;
options.common = common_options;
@ -1865,12 +1866,12 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
retval = flac__encode_raw(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options);
}
else if(input_format == FLAC || input_format == OGGFLAC) {
else if(input_format == FORMAT_FLAC || input_format == FORMAT_OGGFLAC) {
flac_encode_options_t options;
options.common = common_options;
retval = flac__encode_flac(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options, input_format==OGGFLAC);
retval = flac__encode_flac(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options, input_format==FORMAT_OGGFLAC);
}
else {
wav_encode_options_t options;
@ -1880,17 +1881,17 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
/* read foreign metadata if requested */
if(option_values.keep_foreign_metadata) {
if(0 == (options.foreign_metadata = flac__foreign_metadata_new(input_format==AIF? FOREIGN_BLOCK_TYPE__AIFF : FOREIGN_BLOCK_TYPE__RIFF))) {
if(0 == (options.foreign_metadata = flac__foreign_metadata_new(input_format==FORMAT_WAVE? FOREIGN_BLOCK_TYPE__RIFF : FOREIGN_BLOCK_TYPE__AIFF))) {
flac__utils_printf(stderr, 1, "ERROR: creating foreign metadata object\n");
conditional_fclose(encode_infile);
return 1;
}
}
if(input_format == AIF)
retval = flac__encode_aif(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options, is_aifc);
if(input_format == FORMAT_WAVE)
retval = flac__encode_wave(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options);
else
retval = flac__encode_wav(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options);
retval = flac__encode_aiff(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options, input_format==FORMAT_AIFF_C);
if(options.foreign_metadata)
flac__foreign_metadata_delete(options.foreign_metadata);
@ -1949,7 +1950,7 @@ int decode_file(const char *infilename)
{
int retval;
FLAC__bool treat_as_ogg = false;
FileFormat output_format = WAV;
FileFormat output_format = FORMAT_WAVE;
decode_options_t common_options;
const char *outfilename = get_decoded_outfilename(infilename);
@ -1968,25 +1969,25 @@ int decode_file(const char *infilename)
}
if(option_values.force_raw_format)
output_format = RAW;
output_format = FORMAT_RAW;
else if(
option_values.force_aiff_format ||
(strlen(outfilename) >= 4 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-4), ".aif")) ||
(strlen(outfilename) >= 5 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-5), ".aiff"))
)
output_format = AIF;
output_format = FORMAT_AIFF;
else
output_format = WAV;
output_format = FORMAT_WAVE;
if(!option_values.test_only && !option_values.analyze) {
if(output_format == RAW && (option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0))
if(output_format == FORMAT_RAW && (option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0))
return usage_error("ERROR: for decoding to a raw file you must specify a value for --endian and --sign\n");
}
if(option_values.keep_foreign_metadata) {
if(0 == strcmp(infilename, "-") || 0 == strcmp(outfilename, "-"))
return usage_error("ERROR: --keep-foreign-metadata cannot be used when decoding from stdin or to stdout\n");
if(output_format != WAV && output_format != AIF)
if(output_format != FORMAT_WAVE && output_format != FORMAT_AIFF)
return usage_error("ERROR: --keep-foreign-metadata can only be used with WAVE or AIFF output\n");
}
@ -2033,7 +2034,7 @@ int decode_file(const char *infilename)
#endif
common_options.channel_map_none = option_values.channel_map_none;
if(output_format == RAW) {
if(output_format == FORMAT_RAW) {
raw_decode_options_t options;
options.common = common_options;
@ -2050,16 +2051,16 @@ int decode_file(const char *infilename)
/* read foreign metadata if requested */
if(option_values.keep_foreign_metadata) {
if(0 == (options.foreign_metadata = flac__foreign_metadata_new(output_format==AIF? FOREIGN_BLOCK_TYPE__AIFF : FOREIGN_BLOCK_TYPE__RIFF))) {
if(0 == (options.foreign_metadata = flac__foreign_metadata_new(output_format==FORMAT_WAVE? FOREIGN_BLOCK_TYPE__RIFF : FOREIGN_BLOCK_TYPE__AIFF))) {
flac__utils_printf(stderr, 1, "ERROR: creating foreign metadata object\n");
return 1;
}
}
if(output_format == AIF)
retval = flac__decode_aiff(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
else
if(output_format == FORMAT_WAVE)
retval = flac__decode_wav(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
else
retval = flac__decode_aiff(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
if(options.foreign_metadata)
flac__foreign_metadata_delete(options.foreign_metadata);

2
src/flac/utils.h
View File

@ -27,6 +27,8 @@
#include "FLAC/format.h" /* for FLAC__StreamMetadata_CueSheet */
#include <stdio.h> /* for FILE */
typedef enum { FORMAT_RAW, FORMAT_WAVE, FORMAT_AIFF, FORMAT_AIFF_C, FORMAT_FLAC, FORMAT_OGGFLAC } FileFormat;
typedef struct {
FLAC__bool is_relative; /* i.e. specification string started with + or - */
FLAC__bool value_is_samples;