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Code Issues Releases Activity

avfilter/phase: avoid a memcpy per frame.

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This commit is contained in:
Clément Bœsch 2014-05-03 22:42:54 +02:00
parent 687119aa9d
commit 8de600de55
1 changed files with 4 additions and 8 deletions
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12
libavfilter/vf_phase.c
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@ -251,13 +251,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
av_frame_copy_props(out, in);
if (!s->frame) {
s->frame = in;
mode = PROGRESSIVE;
s->frame = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!s->frame) {
av_frame_free(&in);
av_frame_free(&out);
return AVERROR(ENOMEM);
}
} else {
mode = analyze_plane(ctx, s->mode, s->frame, in);
}
@ -269,7 +264,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
for (y = 0, top = 1; y < s->planeheight[plane]; y++, top ^= 1) {
memcpy(to, mode == (top ? BOTTOM_FIRST : TOP_FIRST) ? buf : from, s->linesize[plane]);
memcpy(buf, from, s->linesize[plane]);
buf += s->frame->linesize[plane];
from += in->linesize[plane];
@ -277,7 +271,9 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
}
}
av_frame_free(&in);
if (in != s->frame)
av_frame_free(&s->frame);
s->frame = in;
return ff_filter_frame(outlink, out);
}