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authorStefano Sabatini <stefano.sabatini-lala@poste.it>2010-11-07 22:56:29 +0000
committerStefano Sabatini <stefano.sabatini-lala@poste.it>2010-11-07 22:56:29 +0000
commit1e80a0eaa4905aa043690f715843f9c01dfea913 (patch)
tree7617a9d57272fcdd93f5bc9dd49bef412f50b6dd /libavfilter/avfiltergraph.h
parent0b90e4a240c859de1fa5e0adac99ab58307d6b73 (diff)
Remove graphparser.h header, move AVFilterInOut and
avfilter_graph_parse() declaration to libavfilter/avfiltergraph.h. Simplify, and less confusing for the user. Originally committed as revision 25705 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavfilter/avfiltergraph.h')
-rw-r--r--libavfilter/avfiltergraph.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/libavfilter/avfiltergraph.h b/libavfilter/avfiltergraph.h
index 793c3a44f4..5bc8f0d4b8 100644
--- a/libavfilter/avfiltergraph.h
+++ b/libavfilter/avfiltergraph.h
@@ -87,4 +87,40 @@ int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx);
*/
void avfilter_graph_free(AVFilterGraph *graph);
+/**
+ * A linked-list of the inputs/outputs of the filter chain.
+ *
+ * This is mainly useful for avfilter_graph_parse(), since this
+ * function may accept a description of a graph with not connected
+ * input/output pads. This struct specifies, per each not connected
+ * pad contained in the graph, the filter context and the pad index
+ * required for establishing a link.
+ */
+typedef struct AVFilterInOut {
+ /** unique name for this input/output in the list */
+ char *name;
+
+ /** filter context associated to this input/output */
+ AVFilterContext *filter_ctx;
+
+ /** index of the filt_ctx pad to use for linking */
+ int pad_idx;
+
+ /** next input/input in the list, NULL if this is the last */
+ struct AVFilterInOut *next;
+} AVFilterInOut;
+
+/**
+ * Add a graph described by a string to a graph.
+ *
+ * @param graph the filter graph where to link the parsed graph context
+ * @param filters string to be parsed
+ * @param inputs linked list to the inputs of the graph
+ * @param outputs linked list to the outputs of the graph
+ * @return zero on success, a negative AVERROR code on error
+ */
+int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,
+ AVFilterInOut *inputs, AVFilterInOut *outputs,
+ AVClass *log_ctx);
+
#endif /* AVFILTER_AVFILTERGRAPH_H */