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AMR-WB support by (Johannes Carlsson <joca at rixmail dot se>)

Browse Source 
Originally committed as revision 2311 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-09-28 20:34:11 +00:00
parent cd1f22f97e
commit d663a1fdc0
10 changed files with 395 additions and 114 deletions
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13
configure vendored
View File

@ -102,6 +102,7 @@ SLIBSUF=".so"
EXESUF=""
risky="yes"
amr_nb="no"
amr_wb="no"
amr_nb_fixed="no"
sunmlib="no"
@ -850,6 +851,7 @@ fi
echo "Sun medialib support" $sunmlib
echo "AMR-NB float support" $amr_nb
echo "AMR-NB fixed support" $amr_nb_fixed
echo "AMR-WB float support" $amr_wb
echo "Creating config.mak and config.h"
@ -1137,6 +1139,17 @@ if test "$source_path_used" = "yes" ; then
fi
echo "SRC_PATH=$source_path" >> config.mak
if test "$amr_wb" = "yes" ; then
echo "#define AMR_WB 1" >> $TMPH
echo "AMR_WB=yes" >> config.mak
echo
echo "AMR WB FLOAT NOTICE ! Make sure you have downloaded TS26.204"
echo "V5.1.0 from "
echo "http://www.3gpp.org/ftp/Specs/archive/26_series/26.204/26204-510.zip"
echo "and extracted the source to libavcodec/amrwb_float"
echo
fi
if test "$amr_nb" = "yes" ; then
echo "#define AMR_NB 1" >> $TMPH
echo "AMR_NB=yes" >> config.mak

2
doc/ffmpeg-doc.texi
View File

@ -716,6 +716,8 @@ solutions.
@tab Real 28800 bit/s codec
@item AMR-NB @tab X @tab X
@tab supported through an external library
@item AMR-WB @tab X @tab X
@tab supported through an external library
@item DV audio @tab @tab X
@item Id RoQ DPCM @tab @tab X
@tab used in Quake III, Jedi Knight 2, other computer games

12
libavcodec/Makefile
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@ -31,6 +31,15 @@ CLEANAMR=cleanamrfloat
endif
endif
ifeq ($(AMR_WB),yes)
OBJS+= amr.o amrwb_float/dec_acelp.o amrwb_float/dec_dtx.o amrwb_float/dec_gain.o \
amrwb_float/dec_if.o amrwb_float/dec_lpc.o amrwb_float/dec_main.o \
amrwb_float/dec_rom.o amrwb_float/dec_util.o amrwb_float/enc_acelp.o \
amrwb_float/enc_dtx.o amrwb_float/enc_gain.o amrwb_float/enc_if.o \
amrwb_float/enc_lpc.o amrwb_float/enc_main.o amrwb_float/enc_rom.o \
amrwb_float/enc_util.o amrwb_float/if_rom.o
endif
CLEANAMRWB=cleanamrwbfloat
ASM_OBJS=
# codecs which are patented in some non free countries like the us
@ -202,6 +211,9 @@ cleanamr:
cleanamrfloat:
rm -f amr_float/*.o
cleanamrwbfloat:
$(MAKE) -C amrwb_float -f makefile.gcc clean
# api example program
apiexample: apiexample.c $(LIB)
$(CC) $(CFLAGS) -o $@ $< $(LIB) $(EXTRALIBS) -lm

6
libavcodec/allcodecs.c
View File

@ -138,6 +138,12 @@ void avcodec_register_all(void)
register_avcodec(&amr_nb_decoder);
register_avcodec(&amr_nb_encoder);
#endif /* AMR_NB */
#ifdef AMR_WB
register_avcodec(&amr_wb_decoder);
register_avcodec(&amr_wb_encoder);
#endif /* AMR_WB */
/* pcm codecs */
#define PCM_CODEC(id, name) \

242
libavcodec/amr.c
View File

@ -17,31 +17,42 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
This code implements amr-nb audio encoder/decoder through external reference
This code implements amr-nb and amr-wb audio encoder/decoder through external reference
code from www.3gpp.org. The licence of the code from 3gpp is unclear so you
have to download the code separately. Two versions exists: One fixed-point
and one with floats. For some reason the float-encoder is significant faster
atleast on a P4 1.5GHz (0.9s instead of 9.9s on a 30s audio clip at MR102).
Both float and fixed point is supported for amr-nb, but only float for
amr-wb.
--AMR-NB--
The fixed-point (TS26.073) can be downloaded from:
http://www.3gpp.org/ftp/Specs/latest/Rel-5/26_series/26073-510.zip
http://www.3gpp.org/ftp/Specs/archive/26_series/26.073/26073-510.zip
Extract the soure into ffmpeg/libavcodec/amr
To use the float version run "./configure" with "--enable-amr-nb-fixed"
To use the fixed version run "./configure" with "--enable-amr-nb-fixed"
The float version (default) can be downloaded from:
http://www.3gpp.org/ftp/Specs/latest/Rel-5/26_series/26104-510.zip
http://www.3gpp.org/ftp/Specs/archive/26_series/26.104/26104-510.zip
Extract the soure into ffmpeg/libavcodec/amr_float
The specification for amr-nb can be found in TS 26.071
(http://www.3gpp.org/ftp/Specs/html-info/26071.htm) and some other
info at http://www.3gpp.org/ftp/Specs/html-info/26-series.htm
In the future support for AMR-WB might also be included here.
Reference code exist in TS26.173 and TS 26.204.
--AMR-WB--
The reference code can be downloaded from:
http://www.3gpp.org/ftp/Specs/archive/26_series/26.204/26204-510.zip
It should be extracted to "libavcodec/amrwb_float". Enable it with
"--enable-amr-wb".
The specification for amr-wb can be downloaded from:
http://www.3gpp.org/ftp/Specs/archive/26_series/26.171/26171-500.zip
If someone want to use the fixed point version it can be downloaded
from: http://www.3gpp.org/ftp/Specs/archive/26_series/26.173/26173-571.zip
*/
#define DEBUG
//#define AMR_NB_FIXED
#include "../config.h"
#include "avcodec.h"
@ -86,7 +97,7 @@ static enum Mode getBitrateMode(int bitrate)
};
int i;
for(i=0;i<sizeof(rates);i++)
for(i=0;i<8;i++)
{
if(rates[i].startrate<=bitrate && rates[i].stoprate>=bitrate)
{
@ -148,17 +159,19 @@ static int amr_nb_encode_init(AVCodecContext * avctx)
if(avctx->sample_rate!=8000)
{
#ifdef DEBUG
printf("Only 8000Hz sample rate supported\n");
#endif
if(avctx->debug)
{
fprintf(stderr, "Only 8000Hz sample rate supported\n");
}
return -1;
}
if(avctx->channels!=1)
{
#ifdef DEBUG
printf("Only mono supported\n");
#endif
if(avctx->debug)
{
fprintf(stderr, "Only mono supported\n");
}
return -1;
}
@ -167,9 +180,10 @@ static int amr_nb_encode_init(AVCodecContext * avctx)
if(Speech_Encode_Frame_init(&s->enstate, 0, "encoder") || sid_sync_init (&s->sidstate))
{
#ifdef DEBUG
printf("Speech_Encode_Frame_init error\n");
#endif
if(avctx->debug)
{
fprintf(stderr, "Speech_Encode_Frame_init error\n");
}
return -1;
}
@ -343,17 +357,19 @@ static int amr_nb_encode_init(AVCodecContext * avctx)
if(avctx->sample_rate!=8000)
{
#ifdef DEBUG
printf("Only 8000Hz sample rate supported\n");
#endif
if(avctx->debug)
{
fprintf(stderr, "Only 8000Hz sample rate supported\n");
}
return -1;
}
if(avctx->channels!=1)
{
#ifdef DEBUG
printf("Only mono supported\n");
#endif
if(avctx->debug)
{
fprintf(stderr, "Only mono supported\n");
}
return -1;
}
@ -363,7 +379,10 @@ static int amr_nb_encode_init(AVCodecContext * avctx)
s->enstate=Encoder_Interface_init(0);
if(!s->enstate)
{
printf("Encoder_Interface_init error\n");
if(avctx->debug)
{
fprintf(stderr, "Encoder_Interface_init error\n");
}
return -1;
}
@ -458,3 +477,176 @@ AVCodec amr_nb_encoder =
amr_nb_encode_close,
NULL,
};
/* -----------AMR wideband ------------*/
#ifdef AMR_WB
#ifdef _TYPEDEF_H
//To avoid duplicate typedefs from typdef in amr-nb
#define typedef_h
#endif
#include "amrwb_float/enc_if.h"
#include "amrwb_float/dec_if.h"
/* Common code for fixed and float version*/
typedef struct AMRWB_bitrates
{
int startrate;
int stoprate;
int mode;
} AMRWB_bitrates;
static int getWBBitrateMode(int bitrate)
{
/* Adjusted so that all bitrates can be used from commandline where
only a multiple of 1000 can be specified*/
AMRWB_bitrates rates[]={ {0,7999,0}, //6.6kHz
{8000,9999,1},//8.85
{10000,13000,2},//12.65
{13001,14999,3},//14.25
{15000,17000,4},//15.85
{17001,18000,5},//18.25
{18001,22000,6},//19.85
{22001,23000,7},//23.05
{23001,24000,8},//23.85
};
int i;
for(i=0;i<9;i++)
{
if(rates[i].startrate<=bitrate && rates[i].stoprate>=bitrate)
{
return(rates[i].mode);
}
}
/*Return highest possible*/
return(8);
}
typedef struct AMRWBContext {
int frameCount;
void *state;
int mode;
Word16 allow_dtx;
} AMRWBContext;
static int amr_wb_encode_init(AVCodecContext * avctx)
{
AMRWBContext *s = (AMRWBContext*)avctx->priv_data;
s->frameCount=0;
if(avctx->sample_rate!=16000)
{
if(avctx->debug)
{
fprintf(stderr, "Only 16000Hz sample rate supported\n");
}
return -1;
}
if(avctx->channels!=1)
{
if(avctx->debug)
{
fprintf(stderr, "Only mono supported\n");
}
return -1;
}
avctx->frame_size=320;
avctx->coded_frame= avcodec_alloc_frame();
s->state = E_IF_init();
s->mode=getWBBitrateMode(avctx->bit_rate);
s->allow_dtx=0;
return 0;
}
static int amr_wb_encode_close(AVCodecContext * avctx)
{
AMRWBContext *s = (AMRWBContext*) avctx->priv_data;
E_IF_exit(s->state);
av_freep(&avctx->coded_frame);
s->frameCount++;
return 0;
}
static int amr_wb_encode_frame(AVCodecContext *avctx,
unsigned char *frame/*out*/, int buf_size, void *data/*in*/)
{
AMRWBContext *s = (AMRWBContext*) avctx->priv_data;
int size = E_IF_encode(s->state, s->mode, data, frame, s->allow_dtx);
return size;
}
static int amr_wb_decode_init(AVCodecContext * avctx)
{
AMRWBContext *s = (AMRWBContext *)avctx->priv_data;
s->frameCount=0;
s->state = D_IF_init();
return 0;
}
extern const UWord8 block_size[];
static int amr_wb_decode_frame(AVCodecContext * avctx,
void *data, int *data_size,
uint8_t * buf, int buf_size)
{
AMRWBContext *s = (AMRWBContext*)avctx->priv_data;
uint8_t*amrData=buf;
int offset=0;
int mode;
int packet_size;
*data_size=0;
while(offset<buf_size)
{
s->frameCount++;
mode = (Word16)((amrData[offset] >> 3) & 0x0F);
packet_size = block_size[mode];
D_IF_decode( s->state, &amrData[offset], data+*data_size, _good_frame);
*data_size+=320*2;
offset+=packet_size;
}
return buf_size;
}
static int amr_wb_decode_close(AVCodecContext * avctx)
{
AMRWBContext *s = (AMRWBContext *)avctx->priv_data;
D_IF_exit(s->state);
return 0;
}
AVCodec amr_wb_decoder =
{
"amr_wb",
CODEC_TYPE_AUDIO,
CODEC_ID_AMR_WB,
sizeof(AMRWBContext),
amr_wb_decode_init,
NULL,
amr_wb_decode_close,
amr_wb_decode_frame,
};
AVCodec amr_wb_encoder =
{
"amr_wb",
CODEC_TYPE_AUDIO,
CODEC_ID_AMR_WB,
sizeof(AMRWBContext),
amr_wb_encode_init,
amr_wb_encode_frame,
amr_wb_encode_close,
NULL,
};
#endif //AMR_WB

4
libavcodec/avcodec.h
View File

@ -95,6 +95,8 @@ enum CodecID {
/* AMR */
CODEC_ID_AMR_NB,
CODEC_ID_AMR_WB,
/* RealAudio codecs*/
CODEC_ID_RA_144,
CODEC_ID_RA_288,
@ -1403,6 +1405,8 @@ extern AVCodec indeo3_decoder;
extern AVCodec vp3_decoder;
extern AVCodec amr_nb_decoder;
extern AVCodec amr_nb_encoder;
extern AVCodec amr_wb_encoder;
extern AVCodec amr_wb_decoder;
extern AVCodec aac_decoder;
extern AVCodec mpeg4aac_decoder;
extern AVCodec asv1_decoder;

2
libavformat/Makefile
View File

@ -21,7 +21,7 @@ ifeq ($(CONFIG_RISKY),yes)
OBJS+= asf.o
endif
ifeq ($(AMR_NB),yes)
ifeq ($(AMR_NB),yes) | ifeq ($(AMR_NB_FIXED),yes) | ifeq ($(AMR_WB),yes)
OBJS+= amr.o
endif

2
libavformat/allformats.c
View File

@ -57,7 +57,7 @@ void av_register_all(void)
ipmovie_init();
wc3_init();
#ifdef AMR_NB
#if defined(AMR_NB) || defined(AMR_NB_FIXED) || defined(AMR_WB)
amr_init();
#endif
yuv4mpeg_init();

116
libavformat/amr.c
View File

@ -20,34 +20,34 @@
/*
Write and read amr data according to RFC3267, http://www.ietf.org/rfc/rfc3267.txt?number=3267
Only amr narrowband (not amr-wb) is supported for now.
Only mono files are supported.
*/
#include "avformat.h"
#include "avi.h"
static const unsigned char AMR_header [] = "#!AMR\n";
/* AMR_FILE header */
static int put_amr_header(ByteIOContext *pb, AVCodecContext *enc)
{
put_tag(pb, AMR_header); /* magic number */
return 0;
}
static const unsigned char AMRWB_header [] = "#!AMR-WB\n";
static int amr_write_header(AVFormatContext *s)
{
ByteIOContext *pb = &s->pb;
AVCodecContext *enc = &s->streams[0]->codec;
s->priv_data = NULL;
/* format header */
if (put_amr_header(pb, &s->streams[0]->codec) < 0) {
return -1;
if (enc->codec_id == CODEC_ID_AMR_NB)
{
put_tag(pb, AMR_header); /* magic number */
}
else if(enc->codec_id == CODEC_ID_AMR_WB)
{
put_tag(pb, AMRWB_header); /* magic number */
}
else
{
//This is an error!
}
put_flush_packet(pb);
return 0;
}
@ -66,10 +66,13 @@ static int amr_write_trailer(AVFormatContext *s)
static int amr_probe(AVProbeData *p)
{
/* check file header */
if (p->buf_size < 6)
//Only check for "#!AMR" which could be amr-wb, amr-nb.
//This will also trigger multichannel files: "#!AMR_MC1.0\n" and
//"#!AMR-WB_MC1.0\n" (not supported)
if (p->buf_size < 5)
return 0;
if(memcmp(p->buf,AMR_header,6)==0)
if(memcmp(p->buf,AMR_header,5)==0)
return AVPROBE_SCORE_MAX;
else
return 0;
@ -81,24 +84,44 @@ static int amr_read_header(AVFormatContext *s,
{
ByteIOContext *pb = &s->pb;
AVStream *st;
uint8_t header[6];
uint8_t header[9];
get_buffer(pb, header, 6);
if(memcmp(header,AMR_header,6)!=0)
{
get_buffer(pb, header+6, 3);
if(memcmp(header,AMRWB_header,9)!=0)
{
return -1;
}
st = av_new_stream(s, 0);
if (!st)
{
return AVERROR_NOMEM;
}
st->codec.codec_type = CODEC_TYPE_AUDIO;
st->codec.codec_tag = CODEC_ID_AMR_WB;
st->codec.codec_id = CODEC_ID_AMR_WB;
st->codec.channels = 1;
st->codec.sample_rate = 16000;
}
else
{
st = av_new_stream(s, 0);
if (!st)
{
return AVERROR_NOMEM;
}
st->codec.codec_type = CODEC_TYPE_AUDIO;
st->codec.codec_tag = CODEC_ID_AMR_NB;
st->codec.codec_id = CODEC_ID_AMR_NB;
st->codec.channels = 1;
st->codec.sample_rate = 8000;
}
return 0;
}
@ -107,26 +130,30 @@ static int amr_read_header(AVFormatContext *s,
static int amr_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
static uint16_t packed_size[16] = {12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0};
AVCodecContext *enc = &s->streams[0]->codec;
if (enc->codec_id == CODEC_ID_AMR_NB)
{
const static uint8_t packed_size[16] = {12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0};
uint8_t toc, q, ft;
int read;
int size;
if (url_feof(&s->pb))
{
return -EIO;
toc=0;
}
toc=get_byte(&s->pb);
q = (toc >> 2) & 0x01;
ft = (toc >> 3) & 0x0F;
size=packed_size[ft];
//printf("amr_read_packet size=%d\n",size);
if (av_new_packet(pkt, size+1))
{
return -EIO;
}
pkt->stream_index = 0;
pkt->data[0]=toc;
@ -140,6 +167,45 @@ static int amr_read_packet(AVFormatContext *s,
}
return 0;
}
else if(enc->codec_id == CODEC_ID_AMR_WB)
{
static uint8_t packed_size[16] = {18, 24, 33, 37, 41, 47, 51, 59, 61, 6, 6, 0, 0, 0, 1, 1};
uint8_t toc, mode;
int read;
int size;
if (url_feof(&s->pb))
{
return -EIO;
}
toc=get_byte(&s->pb);
mode = (uint8_t)((toc >> 3) & 0x0F);
size = packed_size[mode];
if ( (size==0) || av_new_packet(pkt, size))
{
return -EIO;
}
pkt->stream_index = 0;
pkt->data[0]=toc;
read = get_buffer(&s->pb, pkt->data+1, size-1);
if (read != (size-1))
{
av_free_packet(pkt);
return -EIO;
}
return 0;
}
else
{
return -EIO;
}
}
static int amr_read_close(AVFormatContext *s)
@ -150,7 +216,7 @@ static int amr_read_close(AVFormatContext *s)
static AVInputFormat amr_iformat = {
"amr",
"3gpp amr file format",
0,
0, /*priv_data_size*/
amr_probe,
amr_read_header,
amr_read_packet,

36
libavformat/mov.c
View File

@ -121,6 +121,7 @@ static const CodecTag mov_audio_tags[] = {
{ CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG 4 AAC or audio ? */
/* The standard for mpeg4 audio is still not normalised AFAIK anyway */
{ CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
{ CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
{ CODEC_ID_NONE, 0 },
};
@ -850,10 +851,10 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
#endif
} else {
st->codec.codec_id = codec_get_id(mov_audio_tags, format);
if(st->codec.codec_id==CODEC_ID_AMR_NB) //from TS26.244
if(st->codec.codec_id==CODEC_ID_AMR_NB || st->codec.codec_id==CODEC_ID_AMR_WB) //from TS26.244
{
#ifdef DEBUG
printf("AMR-NB audio identified!!\n");
printf("AMR-NB or AMR-WB audio identified!!\n");
#endif
get_be32(pb);get_be32(pb); //Reserved_8
get_be16(pb);//Reserved_2
@ -864,40 +865,25 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
//AMRSpecificBox.(10 bytes)
#ifdef DEBUG
int damr_size=
#endif
get_be32(pb); //size
#ifdef DEBUG
int damr_type=
#endif
get_be32(pb); //type=='damr'
#ifdef DEBUG
int damr_vendor=
#endif
get_be32(pb); //vendor
get_byte(pb); //decoder version
get_be16(pb); //mode_set
get_byte(pb); //mode_change_period
get_byte(pb); //frames_per_sample
#ifdef DEBUG
printf("Audio: damr_type=%c%c%c%c damr_size=%d damr_vendor=%c%c%c%c\n",
(damr_type >> 24) & 0xff,
(damr_type >> 16) & 0xff,
(damr_type >> 8) & 0xff,
(damr_type >> 0) & 0xff,
damr_size,
(damr_vendor >> 24) & 0xff,
(damr_vendor >> 16) & 0xff,
(damr_vendor >> 8) & 0xff,
(damr_vendor >> 0) & 0xff
);
#endif
st->duration = AV_NOPTS_VALUE;//Not possible to get from this info, must count number of AMR frames
if(st->codec.codec_id==CODEC_ID_AMR_NB)
{
st->codec.sample_rate=8000;
st->codec.channels=1;
}
else //AMR-WB
{
st->codec.sample_rate=16000;
st->codec.channels=1;
}
st->codec.bits_per_sample=16;
st->codec.bit_rate=0; /*It is not possible to tell this before we have
an audio frame and even then every frame can be different*/