lavfi: add FF_*LINK_IDX convenience macros.

This commit is contained in:
Nicolas George 2012-07-19 12:59:38 +02:00
parent 461f506f7b
commit cb6a20fa56
1 changed files with 8 additions and 0 deletions

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@ -350,4 +350,12 @@ int ff_request_frame(AVFilterLink *link);
AVFilterBufferRef *ff_copy_buffer_ref(AVFilterLink *outlink,
AVFilterBufferRef *ref);
/**
* Find the index of a link.
*
* I.e. find i such that link == ctx->(in|out)puts[i]
*/
#define FF_INLINK_IDX(link) ((int)((link)->dstpad - (link)->dst->input_pads))
#define FF_OUTLINK_IDX(link) ((int)((link)->srcpad - (link)->src->output_pads))
#endif /* AVFILTER_INTERNAL_H */