avfilter: add documentation for needs_writable

d44bd7fb · Vittorio Giovara · 11d704dc · d44bd7fb
Commit d44bd7fb authored Dec 18, 2013 by Vittorio Giovara
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avfilter.h libavfilter/avfilter.h +6 -0

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--- 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