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authorAnton Khirnov <anton@khirnov.net>2012-07-14 09:25:33 +0200
committerAnton Khirnov <anton@khirnov.net>2012-07-22 09:14:05 +0200
commite9b992d035b58209d66115bd7d964741dd31d592 (patch)
tree6943fb7749c7930b1fde69fba8198d80a227f931 /libavfilter/video.h
parentebc8d974817fe456a0afe6867fdeb22c761fb04f (diff)
downloadffmpeg-e9b992d035b58209d66115bd7d964741dd31d592.tar.gz
lavfi: add error handling to draw_slice().
Diffstat (limited to 'libavfilter/video.h')
-rw-r--r--libavfilter/video.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/libavfilter/video.h b/libavfilter/video.h
index 3edf47addc..893960e7c1 100644
--- a/libavfilter/video.h
+++ b/libavfilter/video.h
@@ -40,7 +40,7 @@ AVFilterBufferRef *ff_get_video_buffer(AVFilterLink *link, int perms,
int w, int h);
int ff_null_start_frame(AVFilterLink *link, AVFilterBufferRef *picref);
-void ff_null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
+int ff_null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
void ff_null_end_frame(AVFilterLink *link);
/**
@@ -78,7 +78,9 @@ void ff_end_frame(AVFilterLink *link);
* from the top slice to the bottom slice if the value is 1,
* from the bottom slice to the top slice if the value is -1,
* for other values the behavior of the function is undefined.
+ *
+ * @return >= 0 on success, a negative AVERROR on error.
*/
-void ff_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
+int ff_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
#endif /* AVFILTER_VIDEO_H */