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avutil/frame: Document avcodec_get_frame_class() and the option naming system 

Missing docs found by: nevcairiel

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-05-28 16:57:13 +02:00
parent 77ba4a7843
commit 003a9e4854
1 changed files with 4 additions and 0 deletions
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4
libavutil/frame.h
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@ -176,6 +176,10 @@ typedef struct AVFrameSideData {
* Similarly fields that are marked as to be only accessed by
* av_opt_ptr() can be reordered. This allows 2 forks to add fields
* without breaking compatibility with each other.
*
* Fields can be accessed through AVOptions, the name string used, matches the
* C structure field name for fields accessable through AVOptions. The AVClass
* for AVFrame can be obtained from avcodec_get_frame_class()
*/
typedef struct AVFrame {
#define AV_NUM_DATA_POINTERS 8