API changes, most recent first:
+2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
+ Change avfilter_open() signature:
+ AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
+ int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
+
+ This change breaks libavfilter API/ABI.
+
2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
Add a type field to AVFilterBufferRef, and move video specific
properties to AVFilterBufferRefVideoProps.