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(cosmetics) Describe for which tests clipping is required.

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Originally committed as revision 14979 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vladimir Voroshilov 2008-08-26 16:47:31 +00:00
parent 122d027630
commit f5e177f852
1 changed files with 2 additions and 0 deletions
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2
libavcodec/acelp_filters.c
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@ -156,6 +156,8 @@ void ff_acelp_high_pass_filter(
tmp += (hpf_f[1]* -7667LL)>>13; tmp += (hpf_f[1]* -7667LL)>>13;
tmp += 7699 * (in[i] - 2*in[i-1] + in[i-2]); tmp += 7699 * (in[i] - 2*in[i-1] + in[i-2]);
/* With "+0x800" rounding, clipping is needed
for ALGTHM and SPEECH tests. */
out[i] = av_clip_int16((tmp + 0x800) >> 12); out[i] = av_clip_int16((tmp + 0x800) >> 12);
hpf_f[1] = hpf_f[0]; hpf_f[1] = hpf_f[0];