diff options
Diffstat (limited to 'libavcodec/acelp_filters.c')
| -rw-r--r-- | libavcodec/acelp_filters.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libavcodec/acelp_filters.c b/libavcodec/acelp_filters.c index 581da30..83db0ef 100644 --- a/libavcodec/acelp_filters.c +++ b/libavcodec/acelp_filters.c @@ -152,11 +152,11 @@ void ff_acelp_high_pass_filter( for(i=0; i<length; i++) { - tmp = (hpf_f[0]* 15836LL)>>13; /* (14.13) = (13.13) * (1.13) */ - tmp += (hpf_f[1]* -7667LL)>>13; /* (13.13) = (13.13) * (0.13) */ - tmp += 7699 * (in[i] - 2*in[i-1] + in[i-2]); /* (14.13) = (0.13) * (14.0) */ + tmp = (hpf_f[0]* 15836LL)>>13; + tmp += (hpf_f[1]* -7667LL)>>13; + tmp += 7699 * (in[i] - 2*in[i-1] + in[i-2]); - out[i] = av_clip_int16((tmp + 0x800) >> 12); /* (15.0) = 2 * (13.13) = (14.13) */ + out[i] = av_clip_int16((tmp + 0x800) >> 12); hpf_f[1] = hpf_f[0]; hpf_f[0] = tmp; |
