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Merge commit '718907cd881a0b593264aed059c0e00da13f9e15'

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* commit '718907cd881a0b593264aed059c0e00da13f9e15':
  libtwolame MP2 encoding support

Conflicts:
	Changelog
	configure
	doc/general.texi
	libavcodec/Makefile
	libavcodec/libtwolame.c
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-04-09 02:16:05 +02:00
commit 6c019f05ed
3 changed files with 102 additions and 74 deletions
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2
doc/general.texi
View File

@ -920,7 +920,7 @@ following image formats are supported:
@item Monkey's Audio @tab @tab X
@item MP1 (MPEG audio layer 1) @tab @tab IX
@item MP2 (MPEG audio layer 2) @tab IX @tab IX
@tab libtwolame can be used alternatively for encoding.
@tab encoding supported also through external library TwoLAME
@item MP3 (MPEG audio layer 3) @tab E @tab IX
@tab encoding supported through external library LAME, ADU MP3 and MP3onMP4 also supported
@item MPEG-4 Audio Lossless Coding (ALS) @tab @tab X

172
libavcodec/libtwolame.c
View File

@ -26,22 +26,25 @@
#include <twolame.h>
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "internal.h"
#include "mpegaudio.h"
typedef struct TWOLAMEContext {
AVClass *class;
int mode;
int psymodel;
int energy;
int error_protection;
int copyright;
int original;
AVClass *class;
int mode;
int psymodel;
int energy;
int error_protection;
int copyright;
int original;
int verbosity;
twolame_options *glopts;
int64_t next_pts;
int64_t next_pts;
} TWOLAMEContext;
static av_cold int twolame_encode_close(AVCodecContext *avctx)
@ -57,12 +60,13 @@ static av_cold int twolame_encode_init(AVCodecContext *avctx)
int ret;
avctx->frame_size = TWOLAME_SAMPLES_PER_FRAME;
avctx->delay = 512 - 32 + 1;
s->glopts = twolame_init();
if (!s->glopts)
return AVERROR(ENOMEM);
twolame_set_verbosity(s->glopts, 0);
twolame_set_verbosity(s->glopts, s->verbosity);
twolame_set_mode(s->glopts, s->mode);
twolame_set_psymodel(s->glopts, s->psymodel);
twolame_set_energy_levels(s->glopts, s->energy);
@ -75,19 +79,21 @@ static av_cold int twolame_encode_init(AVCodecContext *avctx)
twolame_set_out_samplerate(s->glopts, avctx->sample_rate);
if (avctx->flags & CODEC_FLAG_QSCALE || !avctx->bit_rate) {
twolame_set_VBR(s->glopts, TRUE);
twolame_set_VBR_level(s->glopts, avctx->global_quality);
av_log(avctx, AV_LOG_WARNING, "VBR mode is experimental!\n");
twolame_set_VBR_level(s->glopts,
avctx->global_quality / (float) FF_QP2LAMBDA);
av_log(avctx, AV_LOG_WARNING,
"VBR in MP2 is a hack, use another codec that supports it.\n");
} else {
twolame_set_bitrate(s->glopts, avctx->bit_rate / 1000);
}
if ((ret = twolame_init_params(s->glopts)))
goto error;
ret = twolame_init_params(s->glopts);
if (ret) {
twolame_encode_close(avctx);
return AVERROR_UNKNOWN;
}
return 0;
error:
twolame_encode_close(avctx);
return ret;
}
static int twolame_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
@ -103,96 +109,118 @@ static int twolame_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
switch (avctx->sample_fmt) {
case AV_SAMPLE_FMT_FLT:
ret = twolame_encode_buffer_float32_interleaved(s->glopts,
frame->data[0],
frame->nb_samples,
avpkt->data, avpkt->size);
(const float *)frame->data[0],
frame->nb_samples,
avpkt->data,
avpkt->size);
break;
case AV_SAMPLE_FMT_FLTP:
ret = twolame_encode_buffer_float32(s->glopts,
frame->data[0], frame->data[1],
frame->nb_samples,
avpkt->data, avpkt->size);
(const float *)frame->data[0],
(const float *)frame->data[1],
frame->nb_samples,
avpkt->data, avpkt->size);
break;
case AV_SAMPLE_FMT_S16:
ret = twolame_encode_buffer_interleaved(s->glopts,
frame->data[0],
frame->nb_samples,
avpkt->data, avpkt->size);
(const short int *)frame->data[0],
frame->nb_samples,
avpkt->data, avpkt->size);
break;
case AV_SAMPLE_FMT_S16P:
ret = twolame_encode_buffer(s->glopts,
frame->data[0], frame->data[1],
(const short int *)frame->data[0],
(const short int *)frame->data[1],
frame->nb_samples,
avpkt->data, avpkt->size);
break;
default:
av_log(avctx, AV_LOG_ERROR,
"Unsupported sample format %d.\n", avctx->sample_fmt);
return AVERROR_BUG;
}
} else {
ret = twolame_encode_flush(s->glopts, avpkt->data, avpkt->size);
}
if (ret > 0) {
avpkt->duration = ff_samples_to_time_base(avctx, avctx->frame_size);
if (frame) {
if (frame->pts != AV_NOPTS_VALUE)
avpkt->pts = frame->pts;
} else {
avpkt->pts = s->next_pts;
}
if (avpkt->pts != AV_NOPTS_VALUE)
s->next_pts = avpkt->pts + avpkt->duration;
avpkt->size = ret;
*got_packet_ptr = 1;
if (!ret) // no bytes written
return 0;
}
if (ret < 0) // twolame error
return AVERROR_UNKNOWN;
return ret;
avpkt->duration = ff_samples_to_time_base(avctx, frame->nb_samples);
if (frame) {
if (frame->pts != AV_NOPTS_VALUE)
avpkt->pts = frame->pts - ff_samples_to_time_base(avctx, avctx->delay);
} else {
avpkt->pts = s->next_pts;
}
// this is for setting pts for flushed packet(s).
if (avpkt->pts != AV_NOPTS_VALUE)
s->next_pts = avpkt->pts + avpkt->duration;
av_shrink_packet(avpkt, ret);
*got_packet_ptr = 1;
return 0;
}
#define OFFSET(x) offsetof(TWOLAMEContext, x)
#define AE AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "mode", "Mpeg Mode", OFFSET(mode), AV_OPT_TYPE_INT, { .i64 = TWOLAME_AUTO_MODE }, TWOLAME_AUTO_MODE, TWOLAME_MONO, AE, "mode"},
{ "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TWOLAME_AUTO_MODE }, 0, 0, AE, "mode" },
{ "stereo", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TWOLAME_STEREO }, 0, 0, AE, "mode" },
{ "joint_stereo", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TWOLAME_JOINT_STEREO }, 0, 0, AE, "mode" },
{ "dual_channel", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TWOLAME_DUAL_CHANNEL }, 0, 0, AE, "mode" },
{ "mono", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TWOLAME_MONO }, 0, 0, AE, "mode" },
{ "psymodel", "Psychoacoustic Model", OFFSET(psymodel), AV_OPT_TYPE_INT, { .i64 = 3 }, -1, 4, AE},
{ "energy_levels","enable energy levels", OFFSET(energy), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AE},
{ "mode", "Mpeg Mode", OFFSET(mode), AV_OPT_TYPE_INT, { .i64 = TWOLAME_AUTO_MODE }, TWOLAME_AUTO_MODE, TWOLAME_MONO, AE, "mode"},
{ "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TWOLAME_AUTO_MODE }, 0, 0, AE, "mode" },
{ "stereo", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TWOLAME_STEREO }, 0, 0, AE, "mode" },
{ "joint_stereo", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TWOLAME_JOINT_STEREO }, 0, 0, AE, "mode" },
{ "dual_channel", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TWOLAME_DUAL_CHANNEL }, 0, 0, AE, "mode" },
{ "mono", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TWOLAME_MONO }, 0, 0, AE, "mode" },
{ "psymodel", "Psychoacoustic Model", OFFSET(psymodel), AV_OPT_TYPE_INT, { .i64 = 3 }, -1, 4, AE},
{ "energy_levels","enable energy levels", OFFSET(energy), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AE},
{ "error_protection","enable CRC error protection", OFFSET(error_protection), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AE},
{ "copyright", "set MPEG Audio Copyright flag", OFFSET(copyright), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AE},
{ "original", "set MPEG Audio Original flag", OFFSET(original), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AE},
{ "copyright", "set MPEG Audio Copyright flag", OFFSET(copyright), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AE},
{ "original", "set MPEG Audio Original flag", OFFSET(original), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AE},
{ "verbosity", "set library optput level (0-10)", OFFSET(verbosity), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 10, AE},
{ NULL },
};
static const AVClass libtwolame_class = {
static const AVClass twolame_class = {
.class_name = "libtwolame encoder",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
AVCodec ff_libtwolame_encoder = {
.name = "libtwolame",
.long_name = NULL_IF_CONFIG_SMALL("libtwolame MP2 (MPEG audio layer 2)"),
.type = AVMEDIA_TYPE_AUDIO,
.id = AV_CODEC_ID_MP2,
.priv_data_size = sizeof(TWOLAMEContext),
.init = twolame_encode_init,
.encode2 = twolame_encode_frame,
.close = twolame_encode_close,
.capabilities = CODEC_CAP_DELAY,
.sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT,
AV_SAMPLE_FMT_FLTP,
AV_SAMPLE_FMT_S16,
AV_SAMPLE_FMT_S16P,
AV_SAMPLE_FMT_NONE },
.channel_layouts = (const uint64_t[]) { AV_CH_LAYOUT_MONO,
AV_CH_LAYOUT_STEREO,
0 },
.supported_samplerates = (const int[]){ 16000, 22050, 24000, 32000, 44100, 48000, 0 },
.priv_class = &libtwolame_class,
static const AVCodecDefault twolame_defaults[] = {
{ "b", "384000" },
{ "ar", "48000" },
{ NULL },
};
static const int twolame_samplerates[] = {
16000, 22050, 24000, 32000, 44100, 48000, 0
};
AVCodec ff_libtwolame_encoder = {
.name = "libtwolame",
.long_name = NULL_IF_CONFIG_SMALL("libtwolame MP2 (MPEG audio layer 2)"),
.type = AVMEDIA_TYPE_AUDIO,
.id = AV_CODEC_ID_MP2,
.priv_data_size = sizeof(TWOLAMEContext),
.init = twolame_encode_init,
.encode2 = twolame_encode_frame,
.close = twolame_encode_close,
.capabilities = CODEC_CAP_DELAY,
.defaults = twolame_defaults,
.priv_class = &twolame_class,
.sample_fmts = (const enum AVSampleFormat[]) {
AV_SAMPLE_FMT_FLT,
AV_SAMPLE_FMT_FLTP,
AV_SAMPLE_FMT_S16,
AV_SAMPLE_FMT_S16P,
AV_SAMPLE_FMT_NONE
},
.channel_layouts = (const uint64_t[]) {
AV_CH_LAYOUT_MONO,
AV_CH_LAYOUT_STEREO,
0 },
.supported_samplerates = twolame_samplerates,
};

2
libavcodec/version.h
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@ -30,7 +30,7 @@
#define LIBAVCODEC_VERSION_MAJOR 55
#define LIBAVCODEC_VERSION_MINOR 58
#define LIBAVCODEC_VERSION_MICRO 102
#define LIBAVCODEC_VERSION_MICRO 103
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \