[FFmpeg-cvslog] r10598 - in trunk/libavcodec: Makefile adpcm.c allcodecs.c avcodec.h
vitor
subversion
Thu Sep 27 08:21:57 CEST 2007
Author: vitor
Date: Thu Sep 27 08:21:57 2007
New Revision: 10598
Log:
AMV audio decoder
Modified:
trunk/libavcodec/Makefile
trunk/libavcodec/adpcm.c
trunk/libavcodec/allcodecs.c
trunk/libavcodec/avcodec.h
Modified: trunk/libavcodec/Makefile
==============================================================================
--- trunk/libavcodec/Makefile (original)
+++ trunk/libavcodec/Makefile Thu Sep 27 08:21:57 2007
@@ -263,6 +263,7 @@ OBJS-$(CONFIG_ADPCM_EA_DECODER) +
OBJS-$(CONFIG_ADPCM_EA_ENCODER) += adpcm.o
OBJS-$(CONFIG_ADPCM_G726_DECODER) += g726.o
OBJS-$(CONFIG_ADPCM_G726_ENCODER) += g726.o
+OBJS-$(CONFIG_ADPCM_IMA_AMV_DECODER) += adpcm.o
OBJS-$(CONFIG_ADPCM_IMA_DK3_DECODER) += adpcm.o
OBJS-$(CONFIG_ADPCM_IMA_DK3_ENCODER) += adpcm.o
OBJS-$(CONFIG_ADPCM_IMA_DK4_DECODER) += adpcm.o
Modified: trunk/libavcodec/adpcm.c
==============================================================================
--- trunk/libavcodec/adpcm.c (original)
+++ trunk/libavcodec/adpcm.c Thu Sep 27 08:21:57 2007
@@ -1182,16 +1182,28 @@ static int adpcm_decode_frame(AVCodecCon
}
}
break;
+ case CODEC_ID_ADPCM_IMA_AMV:
case CODEC_ID_ADPCM_IMA_SMJPEG:
c->status[0].predictor = *src;
src += 2;
c->status[0].step_index = *src++;
src++; /* skip another byte before getting to the meat */
+
+ if (avctx->codec->id == CODEC_ID_ADPCM_IMA_AMV)
+ src+=4;
+
while (src < buf + buf_size) {
+ char hi, lo;
+ lo = *src & 0x0F;
+ hi = (*src >> 4) & 0x0F;
+
+ if (avctx->codec->id == CODEC_ID_ADPCM_IMA_AMV)
+ FFSWAP(char, hi, lo);
+
*samples++ = adpcm_ima_expand_nibble(&c->status[0],
- *src & 0x0F, 3);
+ lo, 3);
*samples++ = adpcm_ima_expand_nibble(&c->status[0],
- (*src >> 4) & 0x0F, 3);
+ hi, 3);
src++;
}
break;
@@ -1439,6 +1451,7 @@ ADPCM_ENCODER(id,name) ADPCM_DECODER(id,
ADPCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
ADPCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
ADPCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
+ADPCM_CODEC(CODEC_ID_ADPCM_IMA_AMV, adpcm_ima_amv);
ADPCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
ADPCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
ADPCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
Modified: trunk/libavcodec/allcodecs.c
==============================================================================
--- trunk/libavcodec/allcodecs.c (original)
+++ trunk/libavcodec/allcodecs.c Thu Sep 27 08:21:57 2007
@@ -246,6 +246,7 @@ void avcodec_register_all(void)
REGISTER_ENCDEC (ADPCM_CT, adpcm_ct);
REGISTER_ENCDEC (ADPCM_EA, adpcm_ea);
REGISTER_ENCDEC (ADPCM_G726, adpcm_g726);
+ REGISTER_DECODER (ADPCM_IMA_AMV, adpcm_ima_amv);
REGISTER_ENCDEC (ADPCM_IMA_DK3, adpcm_ima_dk3);
REGISTER_ENCDEC (ADPCM_IMA_DK4, adpcm_ima_dk4);
REGISTER_ENCDEC (ADPCM_IMA_QT, adpcm_ima_qt);
Modified: trunk/libavcodec/avcodec.h
==============================================================================
--- trunk/libavcodec/avcodec.h (original)
+++ trunk/libavcodec/avcodec.h Thu Sep 27 08:21:57 2007
@@ -208,6 +208,7 @@ enum CodecID {
CODEC_ID_ADPCM_SBPRO_3,
CODEC_ID_ADPCM_SBPRO_2,
CODEC_ID_ADPCM_THP,
+ CODEC_ID_ADPCM_IMA_AMV,
/* AMR */
CODEC_ID_AMR_NB= 0x12000,
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