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add support for encoding from non-compressed AIFF-C (SF bug #1090933: https://sourceforge.net/tracker/?func=detail&atid=113478&aid=1090933&group_id=13478)

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This commit is contained in:
Josh Coalson
2005-08-26 05:57:04 +00:00
parent c2af4280e5
commit 15acb69ea3
4 changed files with 41 additions and 20 deletions
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1
doc/html/changelog.html
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@@ -83,6 +83,7 @@
<li>
flac:
<ul>
<li>Add support for encoding from non-compressed AIFF-C (<a href="https://sourceforge.net/tracker/?func=detail&atid=113478&aid=1090933&group_id=13478">SF #1090933</a>).</li>
<li>Importing of non-CDDA-compliant cuesheets now only issues a warning, not an error (see <a href="http://www.hydrogenaudio.org/forums/index.php?showtopic=31282">here</a>).</li>
<li>Fixed a bug in cuesheet parsing where it would return an error if the last line of the cuesheet did not end with a newline.</li>
</ul>

46
src/flac/encode.c
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@@ -160,9 +160,7 @@ static FLAC__bool fskip_ahead(FILE *f, FLAC__uint64 offset);
/*
* public routines
*/
int
flac__encode_aif(FILE *infile, long infilesize, const char *infilename, const char *outfilename,
const FLAC__byte *lookahead, unsigned lookahead_length, wav_encode_options_t options)
int flac__encode_aif(FILE *infile, long 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;
FLAC__uint16 x;
@@ -170,6 +168,7 @@ flac__encode_aif(FILE *infile, long infilesize, const char *infilename, const ch
unsigned int channels= 0U, bps= 0U, sample_rate= 0U, sample_frames= 0U;
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 */
(void)lookahead; /* silence compiler warning about unused parameter */
@@ -205,20 +204,21 @@ flac__encode_aif(FILE *infile, long infilesize, const char *infilename, const ch
return EncoderSession_finish_error(&encoder_session);
}
if(got_comm_chunk==false && !strncmp(chunk_id, "COMM", 4)) { /* common chunk */
if(got_comm_chunk==false && !memcmp(chunk_id, "COMM", 4)) { /* 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))
return EncoderSession_finish_error(&encoder_session);
else if(xx<18U) {
flac__utils_printf(stderr, 1, "%s: ERROR: non-standard 'COMM' chunk has length = %u\n", encoder_session.inbasefilename, (unsigned int)xx);
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(xx!=18U) {
flac__utils_printf(stderr, 1, "%s: WARNING: non-standard 'COMM' chunk has length = %u\n", encoder_session.inbasefilename, (unsigned int)xx);
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);
}
skip= (xx-18U)+(xx & 1U);
skip= (xx-minimum_comm_size)+(xx & 1U);
/* number of channels */
if(!read_big_endian_uint16(infile, &x, false, encoder_session.inbasefilename))
@@ -264,6 +264,20 @@ flac__encode_aif(FILE *infile, long infilesize, const char *infilename, const ch
}
sample_rate= xx;
/* check compression type for AIFF-C */
if(is_aifc) {
if(!read_big_endian_uint32(infile, &xx, false, encoder_session.inbasefilename))
return EncoderSession_finish_error(&encoder_session);
if(xx == 0x736F7774) /* "sowt" */
is_big_endian_pcm = false;
else if(xx == 0x4E4F4E45) /* "NONE" */
; /* nothing to do, we already default to big-endian */
else {
flac__utils_printf(stderr, 1, "%s: ERROR: can't handle AIFF-C compression type \"%c%c%c%c\"\n", encoder_session.inbasefilename, (char)(xx>>24), (char)((xx>>16)&8), (char)((xx>>8)&8), (char)(xx&8));
return EncoderSession_finish_error(&encoder_session);
}
}
/* skip any extra data in the COMM chunk */
if(!fskip_ahead(infile, skip)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping extra COMM data\n", encoder_session.inbasefilename);
@@ -281,7 +295,7 @@ flac__encode_aif(FILE *infile, long infilesize, const char *infilename, const ch
got_comm_chunk= true;
}
else if(got_ssnd_chunk==false && !strncmp(chunk_id, "SSND", 4)) { /* sound data chunk */
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;
size_t bytes_per_frame= channels*(bps>>3);
FLAC__uint64 total_samples_in_input, trim = 0;
@@ -408,7 +422,7 @@ flac__encode_aif(FILE *infile, long infilesize, const char *infilename, const ch
}
else {
unsigned int frames= bytes_read/bytes_per_frame;
format_input(input_, frames, true, false, channels, bps);
format_input(input_, frames, is_big_endian_pcm, /*is_unsigned_samples=*/false, channels, bps);
if(!EncoderSession_process(&encoder_session, (const FLAC__int32 *const *)input_, frames)) {
print_error_with_state(&encoder_session, "ERROR during encoding");
@@ -460,7 +474,7 @@ flac__encode_aif(FILE *infile, long infilesize, const char *infilename, const ch
}
else {
info_align_carry= *options.common.align_reservoir_samples;
format_input(options.common.align_reservoir, *options.common.align_reservoir_samples, true, false, channels, bps);
format_input(options.common.align_reservoir, *options.common.align_reservoir_samples, is_big_endian_pcm, /*is_unsigned_samples=*/false, channels, bps);
}
}
}
@@ -478,10 +492,10 @@ flac__encode_aif(FILE *infile, long infilesize, const char *infilename, const ch
got_ssnd_chunk= true;
}
else { /* other chunk */
if(!strncmp(chunk_id, "COMM", 4)) {
if(!memcmp(chunk_id, "COMM", 4)) {
flac__utils_printf(stderr, 1, "%s: WARNING: skipping extra 'COMM' chunk\n", encoder_session.inbasefilename);
}
else if(!strncmp(chunk_id, "SSND", 4)) {
else if(!memcmp(chunk_id, "SSND", 4)) {
flac__utils_printf(stderr, 1, "%s: WARNING: skipping extra 'SSND' chunk\n", encoder_session.inbasefilename);
}
else {
@@ -746,7 +760,7 @@ int flac__encode_wav(FILE *infile, long infilesize, const char *infilename, cons
}
else {
unsigned wide_samples = bytes_read / bytes_per_wide_sample;
format_input(input_, wide_samples, false, is_unsigned_samples, channels, bps);
format_input(input_, wide_samples, /*is_big_endian=*/false, is_unsigned_samples, channels, bps);
if(!EncoderSession_process(&encoder_session, (const FLAC__int32 * const *)input_, wide_samples)) {
print_error_with_state(&encoder_session, "ERROR during encoding");
@@ -799,7 +813,7 @@ int flac__encode_wav(FILE *infile, long infilesize, const char *infilename, cons
}
else {
info_align_carry = *options.common.align_reservoir_samples;
format_input(options.common.align_reservoir, *options.common.align_reservoir_samples, false, is_unsigned_samples, channels, bps);
format_input(options.common.align_reservoir, *options.common.align_reservoir_samples, /*is_big_endian=*/false, is_unsigned_samples, channels, bps);
}
}
}

2
src/flac/encode.h
View File

@@ -83,7 +83,7 @@ typedef struct {
unsigned sample_rate;
} raw_encode_options_t;
int flac__encode_aif(FILE *infile, long infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, wav_encode_options_t options);
int flac__encode_aif(FILE *infile, long 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, long 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, long infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, raw_encode_options_t options);

12
src/flac/main.c
View File

@@ -1239,7 +1239,8 @@ void show_explain()
usage_header();
usage_summary();
printf("For encoding:\n");
printf(" The input file(s) may be a PCM RIFF WAVE file, AIFF file, or raw samples.\n");
printf(" The input file(s) may be a PCM RIFF WAVE file, AIFF (or uncompressed AIFF-C)\n");
printf(" file, or raw samples.\n");
printf(" The output file(s) will be in native FLAC or Ogg FLAC format\n");
printf("For decoding, the reverse is true.\n");
printf("\n");
@@ -1475,7 +1476,8 @@ 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 fmt= RAW;
FileFormat fmt = RAW;
FLAC__bool is_aifc = false;
int retval;
long infilesize;
encode_options_t common_options;
@@ -1527,6 +1529,10 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
fmt= WAV;
else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFF", 4))
fmt= AIF;
else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFC", 4)) {
fmt= AIF;
is_aifc = true;
}
else {
if(fmt != RAW)
format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
@@ -1626,7 +1632,7 @@ int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_
options.common = common_options;
if(fmt == AIF)
retval = flac__encode_aif(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
retval = flac__encode_aif(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options, is_aifc);
else
retval = flac__encode_wav(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
}