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| author | Vittorio Giovara <vittorio.giovara@gmail.com> | 2014-05-15 22:06:49 -0400 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2014-05-19 13:13:10 +0200 |
| commit | bddd8cbf68551f6405b2bf77cc3e212af9fbe834 (patch) | |
| tree | e4055879d665ee6dfd982d6ca2a3b203d92a5c9c /libavcodec/avcodec.h | |
| parent | 9929b3564c0dca42ed7baa6798ef15b6f0013c83 (diff) | |
Add transformation matrix API.
Add AV_PKT_DATA_DISPLAYMATRIX and AV_FRAME_DATA_DISPLAYMATRIX as stream and
frame side data (respectively) to describe a display transformation matrix
for linear transformation operations on the decoded video.
Add functions to easily extract a rotation angle from a matrix and
conversely to setup a matrix for a given rotation angle.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'libavcodec/avcodec.h')
| -rw-r--r-- | libavcodec/avcodec.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 5640710850..f8d815f69b 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -959,6 +959,15 @@ enum AVPacketSideDataType { * ReplayGain information in form of the AVReplayGain struct. */ AV_PKT_DATA_REPLAYGAIN, + + /** + * This side data contains a 3x3 transformation matrix describing an affine + * transformation that needs to be applied to the decoded video frames for + * correct presentation. + * + * See libavutil/display.h for a detailed description of the data. + */ + AV_PKT_DATA_DISPLAYMATRIX, }; typedef struct AVPacketSideData { |