Add a simple filter graph structure and functions

Commited in SoC by Bobby Bingham on 2007-07-14 20:12:54 Originally committed as revision 11988 to svn://svn.ffmpeg.org/ffmpeg/trunk

Vitor Sessak committed 18 years ago

Commit f60208f1 parent 6ae82d11 file · +27 −0Browse files

Unified · Split

@@ -31,6 +31,33 @@ · 30 unmodified lines
31	static int filter_count = 0;	31	static int filter_count = 0;
32	static AVFilter **filters = NULL;	32	static AVFilter **filters = NULL;
33		33
		34	struct AVFilterGraph {
		35	unsigned filter_count;
		36	AVFilterContext **filters;
		37	};
		38
		39	AVFilterGraph *avfilter_create_graph(void)
		40	{
		41	return av_mallocz(sizeof(AVFilterGraph));
		42	}
		43
		44	void avfilter_destroy_graph(AVFilterGraph *graph)
		45	{
		46	unsigned i;
		47
		48	for(i = 0; i < graph->filter_count; i ++)
		49	avfilter_destroy(graph->filters[i]);
		50	av_free(graph->filters);
		51	av_free(graph);
		52	}
		53
		54	void avfilter_graph_add_filter(AVFilterGraph graph, AVFilterContext filter)
		55	{
		56	graph->filters = av_realloc(graph->filters,
		57	sizeof(AVFilterContext) ++graph->filter_count);
		58	graph->filters[graph->filter_count - 1] = filter;
		59	}
		60
34	/* TODO: buffer pool. see comment for avfilter_default_get_video_buffer() */	61	/* TODO: buffer pool. see comment for avfilter_default_get_video_buffer() */
35	void avfilter_default_free_video_buffer(AVFilterPic *pic)	62	void avfilter_default_free_video_buffer(AVFilterPic *pic)
36	{	63	{

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