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In yadif filter, use current frame when previous is missing,

better results for the first frame

Originally committed as revision 25202 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2010-09-26 00:56:26 +00:00
parent b9f9e59afc
commit 48f7f29f52

View File

@ -197,13 +197,12 @@ static void start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
yadif->cur = yadif->next;
yadif->next = picref;
if (!yadif->prev)
yadif->prev = avfilter_get_video_buffer(link, AV_PERM_WRITE | AV_PERM_PRESERVE |
AV_PERM_REUSE, link->w, link->h);
if(!yadif->cur)
return;
if (!yadif->prev)
yadif->prev = avfilter_ref_buffer(yadif->cur, AV_PERM_READ);
yadif->out = avfilter_get_video_buffer(ctx->outputs[0], AV_PERM_WRITE | AV_PERM_PRESERVE |
AV_PERM_REUSE, link->w, link->h);