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authorMichael Niedermayer <michaelni@gmx.at>2003-09-28 20:34:11 +0000
committerMichael Niedermayer <michaelni@gmx.at>2003-09-28 20:34:11 +0000
commitd663a1fdc0fd405aafabc9bca6d19d02ca640df9 (patch)
tree7b8bbe5e7c61c935111aa68aec37fdd441e1327c /libavcodec
parentcd1f22f97e9cec9a64c41f33dfd9658c73461270 (diff)
downloadffmpeg-d663a1fdc0fd405aafabc9bca6d19d02ca640df9.tar.gz
AMR-WB support by (Johannes Carlsson <joca at rixmail dot se>)
Originally committed as revision 2311 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/Makefile12
-rw-r--r--libavcodec/allcodecs.c6
-rw-r--r--libavcodec/amr.c244
-rw-r--r--libavcodec/avcodec.h4
4 files changed, 240 insertions, 26 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 8af210ae77..544f003ab8 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -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
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 4e792ba081..5543e73ac2 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -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) \
diff --git a/libavcodec/amr.c b/libavcodec/amr.c
index 50fe003f81..e8da4fd8ac 100644
--- a/libavcodec/amr.c
+++ b/libavcodec/amr.c
@@ -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
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index bb81d00021..29304bac89 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -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;