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Remove some irrelevant comments.

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Originally committed as revision 14884 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-08-21 21:31:03 +00:00
parent da7e59b4ab
commit 012fd207a3
1 changed files with 1 additions and 8 deletions
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9
libavcodec/acelp_filters.c
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@ -93,10 +93,7 @@ void ff_acelp_convolve_circ(
/* Since there are few pulses over an entire subframe (i.e. almost
all fc_in[i] are zero) it is faster to swap two loops and process
non-zero samples only. In the case of G.729D the buffer contains
two non-zero samples before the call to ff_acelp_enhance_harmonics
and, due to pitch_delay being bounded by [20; 143], a maximum
of four non-zero samples for a total of 40 after the call. */
non-zero samples only. */
for(i=0; i<subframe_size; i++)
{
if(fc_in[i])
@ -133,7 +130,6 @@ int ff_acelp_lp_synthesis_filter(
sum = (sum >> 12) + in[n];
/* Check for overflow */
if(sum + 0x8000 > 0xFFFFU)
{
if(stop_on_overflow)
@ -172,9 +168,6 @@ void ff_acelp_high_pass_filter(
tmp += MULL(hpf_f[1], -7667); /* (13.13) = (13.13) * (0.13) */
tmp += 7699 * (in[i] - 2*in[i-1] + in[i-2]); /* (14.13) = (0.13) * (14.0) */
/* Multiplication by 2 with rounding can cause short type
overflow, thus clipping is required. */
out[i] = av_clip_int16((tmp + 0x800) >> 12); /* (15.0) = 2 * (13.13) = (14.13) */
hpf_f[1] = hpf_f[0];