diff options
Diffstat (limited to 'libavfilter/avfilter.h')
| -rw-r--r-- | libavfilter/avfilter.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h index 4d3a7a8..229f78d 100644 --- a/libavfilter/avfilter.h +++ b/libavfilter/avfilter.h @@ -261,8 +261,11 @@ struct AVFilterPad { * picture inside the link structure. * * Input video pads only. + * + * @return >= 0 on success, a negative AVERROR on error. picref will be + * unreferenced by the caller in case of error. */ - void (*start_frame)(AVFilterLink *link, AVFilterBufferRef *picref); + int (*start_frame)(AVFilterLink *link, AVFilterBufferRef *picref); /** * Callback function to get a video buffer. If NULL, the filter system will @@ -287,16 +290,20 @@ struct AVFilterPad { * in the link structure during start_frame(). * * Input video pads only. + * + * @return >= 0 on success, a negative AVERROR on error. */ - void (*end_frame)(AVFilterLink *link); + int (*end_frame)(AVFilterLink *link); /** * Slice drawing callback. This is where a filter receives video data * and should do its processing. * * Input video pads only. + * + * @return >= 0 on success, a negative AVERROR on error. */ - void (*draw_slice)(AVFilterLink *link, int y, int height, int slice_dir); + int (*draw_slice)(AVFilterLink *link, int y, int height, int slice_dir); /** * Samples filtering callback. This is where a filter receives audio data @@ -385,7 +392,7 @@ enum AVMediaType avfilter_pad_get_type(AVFilterPad *pads, int pad_idx); /** default handler for end_frame() for video inputs */ attribute_deprecated -void avfilter_default_end_frame(AVFilterLink *link); +int avfilter_default_end_frame(AVFilterLink *link); /** * Filter definition. This defines the pads a filter contains, and all the |
