avfilter: add documentation for needs_writable

2013-12-18 11:40:38 +01:00
parent 11d704dc94
commit d44bd7fb27
1 changed files with 6 additions and 0 deletions
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -358,6 +358,12 @@ struct AVFilterPad {
     */
    int needs_fifo;

+    /**
+     * The filter expects writable frames from its input link,
+     * duplicating data buffers if needed.
+     *
+     * input pads only.
+     */
    int needs_writable;
 };
 #endif