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aacenc: Start the lookahead pointer 1/4 of the way into the first short window.

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Short windows are of length 256 and begin at sample 448.

Originally committed as revision 23871 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Converse
2010-06-28 21:50:57 +00:00
parent 75ef689884
commit 4e42debc8d
1 changed files with 1 additions and 1 deletions
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libavcodec/aacenc.c
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@@ -519,7 +519,7 @@ static int aac_encode_frame(AVCodecContext *avctx,
chans = tag == TYPE_CPE ? 2 : 1;
cpe = &s->cpe[i];
samples2 = samples + start_ch;
la = samples2 + 1024 * avctx->channels + start_ch;
la = samples2 + (448+64) * avctx->channels + start_ch;
if (!data)
la = NULL;
for (j = 0; j < chans; j++) {