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Fix yamaha adpcm stereo (issue 1117).

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Patch by Yoshihisa Uchida, yoshihisa D uchida A gmail

Originally committed as revision 19237 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Yoshihisa Uchida 2009-06-20 13:07:21 +00:00 committed by Carl Eugen Hoyos
parent 3f3f3ba799
commit d8b2d83473
3 changed files with 11 additions and 14 deletions
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13
libavcodec/adpcm.c
View File

@ -648,14 +648,11 @@ static int adpcm_encode_frame(AVCodecContext *avctx,
*dst++ = buf[0][i] | (buf[1][i] << 4);
}
} else
for (; n>0; n--) {
for(i = 0; i < avctx->channels; i++) {
int nibble;
nibble = adpcm_yamaha_compress_sample(&c->status[i], samples[i]);
nibble |= adpcm_yamaha_compress_sample(&c->status[i], samples[i+avctx->channels]) << 4;
*dst++ = nibble;
}
samples += 2 * avctx->channels;
for (n *= avctx->channels; n>0; n--) {
int nibble;
nibble = adpcm_yamaha_compress_sample(&c->status[ 0], *samples++);
nibble |= adpcm_yamaha_compress_sample(&c->status[st], *samples++) << 4;
*dst++ = nibble;
}
break;
default:

6
tests/rotozoom.regression.ref
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@ -193,10 +193,10 @@ stddev: 914.63 PSNR: 37.09 bytes: 1058604/ 1058444
268344 ./tests/data/a-adpcm_ms.wav
7be370f937c51e8a967e6a3d08d5156a *./tests/data/adpcm_ms.rotozoom.out.wav
stddev: 1050.00 PSNR: 35.90 bytes: 1060620/ 1058444
14df8b8bb7c127ec70c0167df1c0dbf7 *./tests/data/a-adpcm_yam.wav
2546d72df736b5ffa1557e8c9c9ef788 *./tests/data/a-adpcm_yam.wav
266296 ./tests/data/a-adpcm_yam.wav
2f73107dafef6db42e545f9e466d3f05 *./tests/data/adpcm_yam.rotozoom.out.wav
stddev:18302.45 PSNR: 11.07 bytes: 1065004/ 1058444
c80c847a53a0fee17a88fa889ec34a4e *./tests/data/adpcm_yam.rotozoom.out.wav
stddev: 1247.64 PSNR: 34.40 bytes: 1065004/ 1058444
42d4639866ed4d692eaf126228a4fa2a *./tests/data/a-adpcm_swf.flv
269166 ./tests/data/a-adpcm_swf.flv
628089745a7059ae4055c2515b6d668b *./tests/data/adpcm_swf.rotozoom.out.wav

6
tests/vsynth.regression.ref
View File

@ -193,10 +193,10 @@ stddev: 914.63 PSNR: 37.09 bytes: 1058604/ 1058444
268344 ./tests/data/a-adpcm_ms.wav
7be370f937c51e8a967e6a3d08d5156a *./tests/data/adpcm_ms.vsynth.out.wav
stddev: 1050.00 PSNR: 35.90 bytes: 1060620/ 1058444
14df8b8bb7c127ec70c0167df1c0dbf7 *./tests/data/a-adpcm_yam.wav
2546d72df736b5ffa1557e8c9c9ef788 *./tests/data/a-adpcm_yam.wav
266296 ./tests/data/a-adpcm_yam.wav
2f73107dafef6db42e545f9e466d3f05 *./tests/data/adpcm_yam.vsynth.out.wav
stddev:18302.45 PSNR: 11.07 bytes: 1065004/ 1058444
c80c847a53a0fee17a88fa889ec34a4e *./tests/data/adpcm_yam.vsynth.out.wav
stddev: 1247.64 PSNR: 34.40 bytes: 1065004/ 1058444
42d4639866ed4d692eaf126228a4fa2a *./tests/data/a-adpcm_swf.flv
269166 ./tests/data/a-adpcm_swf.flv
628089745a7059ae4055c2515b6d668b *./tests/data/adpcm_swf.vsynth.out.wav