/* flac - Command-line FLAC encoder/decoder
- * Copyright (C) 2000,2001,2002 Josh Coalson
+ * Copyright (C) 2000,2001,2002,2003 Josh Coalson
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
#include <string.h> /* for strcmp() */
#include "FLAC/all.h"
#include "share/grabbag.h"
+#include "share/replaygain_synthesis.h"
#include "decode.h"
#ifdef FLAC__HAS_OGG
FLAC__bool is_aiff_out;
FLAC__bool is_wave_out;
FLAC__bool continue_through_decode_errors;
+
+ struct {
+ replaygain_synthesis_spec_t spec;
+ double scale;
+ DitherContext dither_context;
+ } replaygain;
+
FLAC__bool test_only;
FLAC__bool analysis_mode;
analysis_options aopts;
/*
* local routines
*/
-static FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool verbose, FLAC__bool is_aiff_out, FLAC__bool is_wave_out, FLAC__bool continue_through_decode_errors, FLAC__bool analysis_mode, analysis_options aopts, utils__SkipUntilSpecification *skip_specification, utils__SkipUntilSpecification *until_specification, const char *infilename, const char *outfilename);
+static FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool verbose, FLAC__bool is_aiff_out, FLAC__bool is_wave_out, FLAC__bool continue_through_decode_errors, replaygain_synthesis_spec_t replaygain_synthesis_spec, FLAC__bool analysis_mode, analysis_options aopts, utils__SkipUntilSpecification *skip_specification, utils__SkipUntilSpecification *until_specification, const char *infilename, const char *outfilename);
static void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred);
static FLAC__bool DecoderSession_init_decoder(DecoderSession *d, decode_options_t decode_options, const char *infilename);
static FLAC__bool DecoderSession_process(DecoderSession *d);
/*is_aiff_out=*/true,
/*is_wave_out=*/false,
options.common.continue_through_decode_errors,
+ options.common.replaygain_synthesis_spec,
analysis_mode,
aopts,
&options.common.skip_specification,
/*is_aiff_out=*/false,
/*is_wave_out=*/true,
options.common.continue_through_decode_errors,
+ options.common.replaygain_synthesis_spec,
analysis_mode,
aopts,
&options.common.skip_specification,
/*is_aiff_out=*/false,
/*is_wave_out=*/false,
options.common.continue_through_decode_errors,
+ options.common.replaygain_synthesis_spec,
analysis_mode,
aopts,
&options.common.skip_specification,
return DecoderSession_finish_ok(&decoder_session);
}
-FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool verbose, FLAC__bool is_aiff_out, FLAC__bool is_wave_out, FLAC__bool continue_through_decode_errors, FLAC__bool analysis_mode, analysis_options aopts, utils__SkipUntilSpecification *skip_specification, utils__SkipUntilSpecification *until_specification, const char *infilename, const char *outfilename)
+FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool verbose, FLAC__bool is_aiff_out, FLAC__bool is_wave_out, FLAC__bool continue_through_decode_errors, replaygain_synthesis_spec_t replaygain_synthesis_spec, FLAC__bool analysis_mode, analysis_options aopts, utils__SkipUntilSpecification *skip_specification, utils__SkipUntilSpecification *until_specification, const char *infilename, const char *outfilename)
{
#ifdef FLAC__HAS_OGG
d->is_ogg = is_ogg;
d->is_aiff_out = is_aiff_out;
d->is_wave_out = is_wave_out;
d->continue_through_decode_errors = continue_through_decode_errors;
+ d->replaygain.spec = replaygain_synthesis_spec;
+ d->replaygain.scale = 0.0;
+ /* d->replaygain.dither_context gets initialized later once we know the sample resolution */
d->test_only = (0 == outfilename);
d->analysis_mode = analysis_mode;
d->aopts = aopts;
if(!decode_options.use_first_serial_number)
OggFLAC__stream_decoder_set_serial_number(decoder_session->decoder.ogg.stream, decode_options.serial_number);
+ if (decoder_session->replaygain.spec.apply)
+ OggFLAC__stream_decoder_set_metadata_respond(decoder_session->decoder.ogg.stream, FLAC__METADATA_TYPE_VORBIS_COMMENT);
OggFLAC__stream_decoder_set_read_callback(decoder_session->decoder.ogg.stream, read_callback);
/*
FLAC__file_decoder_set_md5_checking(decoder_session->decoder.flac.file, true);
FLAC__file_decoder_set_filename(decoder_session->decoder.flac.file, infilename);
+ if (decoder_session->replaygain.spec.apply)
+ FLAC__file_decoder_set_metadata_respond(decoder_session->decoder.flac.file, FLAC__METADATA_TYPE_VORBIS_COMMENT);
/*
* The three ugly casts here are to 'downcast' the 'void *' argument of
* the callback down to 'FLAC__FileDecoder *'.
}
FLAC__bool write_sane_extended(FILE *f, unsigned val)
+ /* Write to 'f' a SANE extended representation of 'val'. Return false if
+ * the write succeeds; return true otherwise.
+ *
+ * SANE extended is an 80-bit IEEE-754 representation with sign bit, 15 bits
+ * of exponent, and 64 bits of significand (mantissa). Unlike most IEEE-754
+ * representations, it does not imply a 1 above the MSB of the significand.
+ *
+ * Preconditions:
+ * val!=0U
+ */
{
- unsigned i, exponent;
-
- /* this reasonable limitation make the implementation simpler */
- FLAC__ASSERT(val < 0x80000000);
+ unsigned int shift, exponent;
- /* we'll use the denormalized form, with no implicit '1' (i bit == 0) */
+ FLAC__ASSERT(val!=0U); /* handling 0 would require a special case */
- for(i = val, exponent = 0; i; i >>= 1, exponent++)
+ for(shift= 0U; (val>>(31-shift))==0U; ++shift)
;
- if(!write_big_endian_uint16(f, (FLAC__uint16)(exponent + 16383)))
- return false;
+ val<<= shift;
+ exponent= 63U-(shift+32U); /* add 32 for unused second word */
- for(i = 32; i; i--) {
- if(val & 0x40000000)
- break;
- val <<= 1;
- }
+ if(!write_big_endian_uint16(f, (FLAC__uint16)(exponent+0x3FFF)))
+ return false;
if(!write_big_endian_uint32(f, val))
return false;
- if(!write_big_endian_uint32(f, 0))
+ if(!write_big_endian_uint32(f, 0)) /* unused second word */
return false;
return true;
flac__analyze_frame(frame, decoder_session->frame_counter-1, decoder_session->aopts, fout);
}
else if(!decoder_session->test_only) {
- if(bps == 8) {
+ if (decoder_session->replaygain.spec.apply) {
+ const size_t n = FLAC__replaygain_synthesis__apply_gain(
+ u8buffer,
+ is_big_endian,
+ is_unsigned_samples,
+ buffer,
+ wide_samples,
+ channels,
+ bps, /* source_bps */
+ bps, /* target_bps */
+ decoder_session->replaygain.scale,
+ decoder_session->replaygain.spec.limiter == RGSS_LIMIT__HARD, /* hard_limit */
+ decoder_session->replaygain.spec.noise_shaping != NOISE_SHAPING_NONE, /* do_dithering */
+ &decoder_session->replaygain.dither_context
+ );
+ if(flac__utils_fwrite(u8buffer, 1, n, fout) != n)
+ return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+ }
+ else if(bps == 8) {
if(is_unsigned_samples) {
for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
for(channel = 0; channel < channels; channel++, sample++)
}
}
}
+ else if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
+ if (decoder_session->replaygain.spec.apply) {
+ double gain, peak;
+ if (!(decoder_session->replaygain.spec.apply = grabbag__replaygain_load_from_vorbiscomment(metadata, decoder_session->replaygain.spec.use_album_gain, &gain, &peak))) {
+ fprintf(stderr, "%s: WARNING: can't get %s ReplayGain tag\n", decoder_session->inbasefilename, decoder_session->replaygain.spec.use_album_gain? "album":"track");
+ }
+ else {
+ const char *ls[] = { "no", "peak", "hard" };
+ const char *ns[] = { "no", "low", "medium", "high" };
+ decoder_session->replaygain.scale = grabbag__replaygain_compute_scale_factor(peak, gain, decoder_session->replaygain.spec.preamp, decoder_session->replaygain.spec.limiter == RGSS_LIMIT__PEAK);
+ FLAC__ASSERT(decoder_session->bps > 0 && decoder_session->bps <= 32);
+ FLAC__replaygain_synthesis__init_dither_context(&decoder_session->replaygain.dither_context, decoder_session->bps, decoder_session->replaygain.spec.noise_shaping);
+ fprintf(stderr, "%s: INFO: applying %s ReplayGain (gain=%0.2fdB+preamp=%0.1fdB, %s noise shaping, %s limiting) to output\n", decoder_session->inbasefilename, decoder_session->replaygain.spec.use_album_gain? "album":"track", gain, decoder_session->replaygain.spec.preamp, ns[decoder_session->replaygain.spec.noise_shaping], ls[decoder_session->replaygain.spec.limiter]);
+ fprintf(stderr, "%s: WARNING: applying ReplayGain is not lossless\n", decoder_session->inbasefilename);
+ }
+ }
+ }
}
void error_callback(const void *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
projects / platform / upstream / flac.git / blobdiff