Create a set of null callback functions. These are useful for filters which don't modify the image data.

Originally committed as revision 22594 to svn://svn.ffmpeg.org/ffmpeg/trunk

Bobby Bingham committed 16 years ago

Commit 91d1c741 parent 22e82222 files · +33 −0Browse files

Unified · Split

2 files

@@ -395,6 +395,19 @@ void avfilter_set_common_formats(AVFilterContext ctx, AVFilterFormats formats) · 394 unmodified lines
395	395	/** Default handler for query_formats() */
396	396	int avfilter_default_query_formats(AVFilterContext *ctx);
397	397
	398	+/** start_frame() handler for filters which simply pass video along */
	399	+void avfilter_null_start_frame(AVFilterLink link, AVFilterPicRef picref);
	400	+
	401	+/** draw_slice() handler for filters which simply pass video along */
	402	+void avfilter_null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
	403	+
	404	+/** end_frame() handler for filters which simply pass video along */
	405	+void avfilter_null_end_frame(AVFilterLink *link);
	406	+
	407	+/** get_video_buffer() handler for filters which simply pass video along */
	408	+AVFilterPicRef avfilter_null_get_video_buffer(AVFilterLink link,
	409	+ int perms, int w, int h);
	410	+
398	411	/**
399	412	* Filter definition. This defines the pads a filter contains, and all the
400	413	* callback functions used to interact with the filter.

@@ -165,3 +165,23 @@ int avfilter_default_query_formats(AVFilterContext *ctx) · 164 unmodified lines
165	165	return 0;
166	166	}
167	167
	168	+void avfilter_null_start_frame(AVFilterLink link, AVFilterPicRef picref)
	169	+{
	170	+ avfilter_start_frame(link->dst->outputs[0], picref);
	171	+}
	172	+
	173	+void avfilter_null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
	174	+{
	175	+ avfilter_draw_slice(link->dst->outputs[0], y, h, slice_dir);
	176	+}
	177	+
	178	+void avfilter_null_end_frame(AVFilterLink *link)
	179	+{
	180	+ avfilter_end_frame(link->dst->outputs[0]);
	181	+}
	182	+
	183	+AVFilterPicRef avfilter_null_get_video_buffer(AVFilterLink link, int perms, int w, int h)
	184	+{
	185	+ return avfilter_get_video_buffer(link->dst->outputs[0], perms, w, h);
	186	+}
	187	+

Keyboard shortcuts