From f60208f4435582306b041bbea5fa91b03cffbb83 Mon Sep 17 00:00:00 2001 From: Vitor Sessak Date: Fri, 15 Feb 2008 21:36:37 +0000 Subject: [PATCH] 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 --- libavfilter/avfilter.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c index dbb3e9d6a7..3d7251a8e1 100644 --- a/libavfilter/avfilter.c +++ b/libavfilter/avfilter.c @@ -31,6 +31,33 @@ static int filter_count = 0; static AVFilter **filters = NULL; +struct AVFilterGraph { + unsigned filter_count; + AVFilterContext **filters; +}; + +AVFilterGraph *avfilter_create_graph(void) +{ + return av_mallocz(sizeof(AVFilterGraph)); +} + +void avfilter_destroy_graph(AVFilterGraph *graph) +{ + unsigned i; + + for(i = 0; i < graph->filter_count; i ++) + avfilter_destroy(graph->filters[i]); + av_free(graph->filters); + av_free(graph); +} + +void avfilter_graph_add_filter(AVFilterGraph *graph, AVFilterContext *filter) +{ + graph->filters = av_realloc(graph->filters, + sizeof(AVFilterContext*) * ++graph->filter_count); + graph->filters[graph->filter_count - 1] = filter; +} + /* TODO: buffer pool. see comment for avfilter_default_get_video_buffer() */ void avfilter_default_free_video_buffer(AVFilterPic *pic) { -- 2.11.0