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Code Issues Releases Activity

avfilter/af_afir: optimize code a little more

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Avoid memset.
This commit is contained in:
Paul B Mahol 2018-12-30 17:23:53 +01:00
parent e4788ae31b
commit 72270d5bd0
1 changed files with 1 additions and 4 deletions
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5
libavfilter/af_afir.c
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@ -76,7 +76,6 @@ static int fir_channel(AVFilterContext *ctx, void *arg, int ch, int nb_jobs)
seg->output_offset[ch] += s->min_part_size;
if (seg->output_offset[ch] == seg->part_size) {
seg->output_offset[ch] = 0;
memset(dst, 0, sizeof(*dst) * seg->part_size);
} else {
memmove(src, src + s->min_part_size, (seg->input_size - s->min_part_size) * sizeof(*src));
@ -119,9 +118,7 @@ static int fir_channel(AVFilterContext *ctx, void *arg, int ch, int nb_jobs)
buf[n] += sum[n];
}
for (n = 0; n < seg->part_size; n++) {
dst[n] += buf[n];
}
memcpy(dst, buf, seg->part_size * sizeof(*dst));
buf = (float *)seg->buffer->extended_data[ch];
memcpy(buf, sum + seg->part_size, seg->part_size * sizeof(*buf));