More complete documentation for AVFrame.reference.

Originally committed as revision 12518 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago · 8474f58e8b
parent b7c407449b
commit 8474f58e8b
1 changed files with 2 additions and 0 deletions
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@ -601,6 +601,8 @@ typedef struct AVPanScan{
 \
    /**\
     * is this picture used as reference\
+     * The values for this are the same as the MpegEncContext.picture_structure\
+     * variable, that is 1->top field, 2->bottom field, 3->frame/both fields.\
     * - encoding: unused\
     * - decoding: Set by libavcodec. (before get_buffer() call)).\
     */\