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Add support for AMR-WB encoding via libvo-amrwbenc

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The wrapper code is based on the libamr wrapper removed in SVN rev 19365.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2009-12-29 16:48:09 +02:00
parent d89e738a0c
commit f502ff3f61
7 changed files with 139 additions and 2 deletions
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1
Changelog
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@ -84,6 +84,7 @@ version <next>:
- Chronomaster DFA decoder
- Mobotix MxPEG decoder
- AAC encoding via libvo-aacenc
- AMR-WB encoding via libvo-amrwbenc
version 0.6:

6
configure vendored
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@ -179,6 +179,7 @@ External library support:
--enable-libspeex enable Speex decoding via libspeex [no]
--enable-libtheora enable Theora encoding via libtheora [no]
--enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
--enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
--enable-libvorbis enable Vorbis encoding via libvorbis,
native implementation exists [no]
--enable-libvpx enable VP8 support via libvpx [no]
@ -939,6 +940,7 @@ CONFIG_LIST="
libspeex
libtheora
libvo_aacenc
libvo_amrwbenc
libvorbis
libvpx
libx264
@ -1387,6 +1389,7 @@ libschroedinger_encoder_deps="libschroedinger"
libspeex_decoder_deps="libspeex"
libtheora_encoder_deps="libtheora"
libvo_aacenc_encoder_deps="libvo_aacenc"
libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
libvorbis_encoder_deps="libvorbis"
libvpx_decoder_deps="libvpx"
libvpx_encoder_deps="libvpx"
@ -2529,6 +2532,7 @@ die_license_disabled nonfree libfaac
die_license_disabled version3 libopencore_amrnb
die_license_disabled version3 libopencore_amrwb
die_license_disabled version3 libvo_aacenc
die_license_disabled version3 libvo_amrwbenc
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
@ -2869,6 +2873,7 @@ enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schr
enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
enabled libvpx && {
enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
@ -3138,6 +3143,7 @@ echo "libspeex enabled ${libspeex-no}"
echo "libtheora enabled ${libtheora-no}"
echo "libva enabled ${vaapi-no}"
echo "libvo-aacenc support ${libvo_aacenc-no}"
echo "libvo-amrwbenc support ${libvo_amrwbenc-no}"
echo "libvorbis enabled ${libvorbis-no}"
echo "libvpx enabled ${libvpx-no}"
echo "libx264 enabled ${libx264-no}"

3
doc/general.texi
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@ -588,7 +588,8 @@ following image formats are supported:
@item ADPCM Yamaha @tab X @tab X
@item AMR-NB @tab E @tab X
@tab encoding supported through external library libopencore-amrnb
@item AMR-WB @tab @tab X
@item AMR-WB @tab E @tab X
@tab encoding supported through external library libvo-amrwbenc
@item Apple lossless audio @tab X @tab X
@tab QuickTime fourcc 'alac'
@item Atrac 1 @tab @tab X

1
libavcodec/Makefile
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@ -569,6 +569,7 @@ OBJS-$(CONFIG_LIBSCHROEDINGER_ENCODER) += libschroedingerenc.o \
OBJS-$(CONFIG_LIBSPEEX_DECODER) += libspeexdec.o
OBJS-$(CONFIG_LIBTHEORA_ENCODER) += libtheoraenc.o
OBJS-$(CONFIG_LIBVO_AACENC_ENCODER) += libvo-aacenc.o mpeg4audio.o
OBJS-$(CONFIG_LIBVO_AMRWBENC_ENCODER) += libvo-amrwbenc.o
OBJS-$(CONFIG_LIBVORBIS_ENCODER) += libvorbis.o vorbis_data.o
OBJS-$(CONFIG_LIBVPX_DECODER) += libvpxdec.o
OBJS-$(CONFIG_LIBVPX_ENCODER) += libvpxenc.o

1
libavcodec/allcodecs.c
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@ -367,6 +367,7 @@ void avcodec_register_all(void)
REGISTER_DECODER (LIBSPEEX, libspeex);
REGISTER_ENCODER (LIBTHEORA, libtheora);
REGISTER_ENCODER (LIBVO_AACENC, libvo_aacenc);
REGISTER_ENCODER (LIBVO_AMRWBENC, libvo_amrwbenc);
REGISTER_ENCODER (LIBVORBIS, libvorbis);
REGISTER_ENCDEC (LIBVPX, libvpx);
REGISTER_ENCODER (LIBX264, libx264);

127
libavcodec/libvo-amrwbenc.c Normal file
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@ -0,0 +1,127 @@
/*
* AMR Audio encoder stub
* Copyright (c) 2003 the ffmpeg project
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <vo-amrwbenc/enc_if.h>
#include "avcodec.h"
static const char wb_bitrate_unsupported[] =
"bitrate not supported: use one of 6.6k, 8.85k, 12.65k, 14.25k, 15.85k, "
"18.25k, 19.85k, 23.05k, or 23.85k\n";
typedef struct AMRWB_bitrates {
int rate;
int mode;
} AMRWB_bitrates;
typedef struct AMRWBContext {
void *state;
int mode;
int allow_dtx;
} AMRWBContext;
static int getWBBitrateMode(int bitrate)
{
/* make the correspondance between bitrate and mode */
AMRWB_bitrates rates[] = { { 6600, 0},
{ 8850, 1},
{12650, 2},
{14250, 3},
{15850, 4},
{18250, 5},
{19850, 6},
{23050, 7},
{23850, 8}, };
int i;
for (i = 0; i < 9; i++)
if (rates[i].rate == bitrate)
return rates[i].mode;
/* no bitrate matching, return an error */
return -1;
}
static av_cold int amr_wb_encode_init(AVCodecContext *avctx)
{
AMRWBContext *s = avctx->priv_data;
if (avctx->sample_rate != 16000) {
av_log(avctx, AV_LOG_ERROR, "Only 16000Hz sample rate supported\n");
return -1;
}
if (avctx->channels != 1) {
av_log(avctx, AV_LOG_ERROR, "Only mono supported\n");
return -1;
}
if ((s->mode = getWBBitrateMode(avctx->bit_rate)) < 0) {
av_log(avctx, AV_LOG_ERROR, wb_bitrate_unsupported);
return -1;
}
avctx->frame_size = 320;
avctx->coded_frame = avcodec_alloc_frame();
s->state = E_IF_init();
s->allow_dtx = 0;
return 0;
}
static int amr_wb_encode_close(AVCodecContext *avctx)
{
AMRWBContext *s = avctx->priv_data;
E_IF_exit(s->state);
av_freep(&avctx->coded_frame);
return 0;
}
static int amr_wb_encode_frame(AVCodecContext *avctx,
unsigned char *frame/*out*/,
int buf_size, void *data/*in*/)
{
AMRWBContext *s = avctx->priv_data;
int size;
if ((s->mode = getWBBitrateMode(avctx->bit_rate)) < 0) {
av_log(avctx, AV_LOG_ERROR, wb_bitrate_unsupported);
return -1;
}
size = E_IF_encode(s->state, s->mode, data, frame, s->allow_dtx);
return size;
}
AVCodec ff_libvo_amrwbenc_encoder = {
"libvo_amrwbenc",
CODEC_TYPE_AUDIO,
CODEC_ID_AMR_WB,
sizeof(AMRWBContext),
amr_wb_encode_init,
amr_wb_encode_frame,
amr_wb_encode_close,
NULL,
.sample_fmts = (enum SampleFormat[]){SAMPLE_FMT_S16,SAMPLE_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("libvo-amrwbenc Adaptive Multi-Rate "
"(AMR) Wide-Band"),
};

2
libavcodec/version.h
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@ -21,7 +21,7 @@
#define AVCODEC_VERSION_H
#define LIBAVCODEC_VERSION_MAJOR 52
#define LIBAVCODEC_VERSION_MINOR 118
#define LIBAVCODEC_VERSION_MINOR 119
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \