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downmix_info: clarify doxygen

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Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Timothy Gu 2014-07-04 11:06:45 -07:00 committed by Michael Niedermayer
parent beed4ac110
commit 3679edf429
1 changed files with 4 additions and 3 deletions
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7
libavutil/downmix_info.h
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@ -95,11 +95,12 @@ typedef struct AVDownmixInfo {
/** /**
* Get a frame's AV_FRAME_DATA_DOWNMIX_INFO side data for editing. * Get a frame's AV_FRAME_DATA_DOWNMIX_INFO side data for editing.
* *
* The side data is created and added to the frame if it's absent. * If the side data is absent, it is created and added to the frame.
* *
* @param frame the frame for which the side data is to be obtained. * @param frame the frame for which the side data is to be obtained or created
* *
* @return the AVDownmixInfo structure to be edited by the caller. * @return the AVDownmixInfo structure to be edited by the caller, or NULL if
* the sturcture cannot be allocated.
*/ */
AVDownmixInfo *av_downmix_info_update_side_data(AVFrame *frame); AVDownmixInfo *av_downmix_info_update_side_data(AVFrame *frame);