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Set the step index correctly for flash adpcm. Patch by Baptiste

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Coudurier.

Originally committed as revision 9743 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier
2007-07-18 18:40:03 +00:00
committed by Benjamin Larsson
parent 9fff16bcbb
commit ac0691071e
1 changed files with 2 additions and 1 deletions
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3
libavcodec/adpcm.c
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@@ -531,8 +531,9 @@ static int adpcm_encode_frame(AVCodecContext *avctx,
//Init the encoder state //Init the encoder state
for(i=0; i<avctx->channels; i++){ for(i=0; i<avctx->channels; i++){
c->status[i].step_index = av_clip(c->status[i].step_index, 0, 63); // clip step so it fits 6 bits
put_bits(&pb, 16, samples[i] & 0xFFFF); put_bits(&pb, 16, samples[i] & 0xFFFF);
put_bits(&pb, 6, c->status[i].step_index & 0x3F); put_bits(&pb, 6, c->status[i].step_index);
c->status[i].prev_sample = (signed short)samples[i]; c->status[i].prev_sample = (signed short)samples[i];
} }