[FFmpeg-cvslog] r20771 - trunk/libavfilter/vf_vflip.c
stefano
subversion
Tue Dec 8 18:08:49 CET 2009
Author: stefano
Date: Tue Dec 8 18:08:49 2009
New Revision: 20771
Log:
Fix alpha plane flipping for the yuva420p and similar pixel formats.
Modified:
trunk/libavfilter/vf_vflip.c
Modified: trunk/libavfilter/vf_vflip.c
==============================================================================
--- trunk/libavfilter/vf_vflip.c Tue Dec 8 15:50:46 2009 (r20770)
+++ trunk/libavfilter/vf_vflip.c Tue Dec 8 18:08:49 2009 (r20771)
@@ -48,11 +48,11 @@ static AVFilterPicRef *get_video_buffer(
AVFilterPicRef *picref = avfilter_get_video_buffer(link->dst->outputs[0],
perms, w, h);
- picref->data[0] += (h-1) * picref->linesize[0];
- picref->linesize[0] = -picref->linesize[0];
- for (i = 1; i < 4; i ++) {
+ for (i = 0; i < 4; i ++) {
+ int vsub = i == 1 || i == 2 ? flip->vsub : 0;
+
if (picref->data[i]) {
- picref->data[i] += ((h >> flip->vsub)-1) * picref->linesize[i];
+ picref->data[i] += ((h >> vsub)-1) * picref->linesize[i];
picref->linesize[i] = -picref->linesize[i];
}
}
@@ -66,11 +66,11 @@ static void start_frame(AVFilterLink *li
AVFilterPicRef *ref2 = avfilter_ref_pic(picref, ~0);
int i;
- ref2->data[0] += (link->h-1) * ref2->linesize[0];
- ref2->linesize[0] = -ref2->linesize[0];
- for (i = 1; i < 4; 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 >> flip->vsub)-1) * ref2->linesize[i];
+ ref2->data[i] += ((link->h >> vsub)-1) * ref2->linesize[i];
ref2->linesize[i] = -ref2->linesize[i];
}
}
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