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Merge commit '2deac60a387409dcbc7b37a8c30de89c7aeb58ac' into release/0.10

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* commit '2deac60a387409dcbc7b37a8c30de89c7aeb58ac':
  adpcmenc: Calculate the IMA_QT predictor without overflow

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-03-11 21:49:59 +01:00
commit 35e88167ea
2 changed files with 4 additions and 4 deletions
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2
libavcodec/adpcmenc.c
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@ -554,7 +554,7 @@ static int adpcm_encode_frame(AVCodecContext *avctx,
init_put_bits(&pb, dst, buf_size * 8);
for (ch = 0; ch < avctx->channels; ch++) {
put_bits(&pb, 9, (c->status[ch].prev_sample + 0x10000) >> 7);
put_bits(&pb, 9, (c->status[ch].prev_sample & 0xFFFF) >> 7);
put_bits(&pb, 7, c->status[ch].step_index);
if (avctx->trellis > 0) {
uint8_t buf[64];

6
tests/ref/acodec/adpcm_ima_qt
View File

@ -1,4 +1,4 @@
057d27978b35888776512e4e9669a63b *./tests/data/acodec/adpcm_qt.aiff
23cbae1182e150ebf28e0abfb9cba127 *./tests/data/acodec/adpcm_qt.aiff
281252 ./tests/data/acodec/adpcm_qt.aiff
169c40435c68d50112c9c61fc67e446d *./tests/data/adpcm_ima_qt.acodec.out.wav
stddev: 918.61 PSNR: 37.07 MAXDIFF:34029 bytes: 1058560/ 1058400
b0fafd002c38fb70acaddfda1a31ed61 *./tests/data/adpcm_ima_qt.acodec.out.wav
stddev: 904.76 PSNR: 37.20 MAXDIFF:34029 bytes: 1058560/ 1058400