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The vflip filter does not need to keep ownership of a picture reference. 

Avoid creating and releasing useless extra picture references in the
start_frame and end_frame callbacks.

Originally committed as revision 22596 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Bobby Bingham 2010-03-18 23:13:04 +00:00
parent d313e17ab1
commit 15ba015f71
1 changed files with 5 additions and 5 deletions
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10
libavfilter/vf_vflip.c
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@ -63,19 +63,18 @@ static AVFilterPicRef *get_video_buffer(AVFilterLink *link, int perms,
static void start_frame(AVFilterLink *link, AVFilterPicRef *picref)
{
FlipContext *flip = link->dst->priv;
AVFilterPicRef *ref2 = avfilter_ref_pic(picref, ~0);
int i;
for (i = 0; i < 4; i ++) {
int vsub = i == 1 || i == 2 ? flip->vsub : 0;
if (ref2->data[i]) {
ref2->data[i] += ((link->h >> vsub)-1) * ref2->linesize[i];
ref2->linesize[i] = -ref2->linesize[i];
if (picref->data[i]) {
picref->data[i] += ((link->h >> vsub)-1) * picref->linesize[i];
picref->linesize[i] = -picref->linesize[i];
}
}
avfilter_start_frame(link->dst->outputs[0], ref2);
avfilter_start_frame(link->dst->outputs[0], picref);
}
static void draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
@ -96,6 +95,7 @@ AVFilter avfilter_vf_vflip = {
.get_video_buffer = get_video_buffer,
.start_frame = start_frame,
.draw_slice = draw_slice,
.end_frame = avfilter_null_end_frame,
.config_props = config_input, },
{ .name = NULL}},
.outputs = (AVFilterPad[]) {{ .name = "default",