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Bug 1843786 - Pipewire: Add videotransform meta, r=grulja,@webrtc-reviewers

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This cherry-picks the `spa_meta_videotransform` needed for upcoming
webrtc patches, avoiding a full sync for easier porting.

Upstream commit: 01b2552b71e7475b4c9f893c43e07e8f1044a50b

Differential Revision: https://phabricator.services.mozilla.com/D183651
This commit is contained in:
Robert Mader 2023-09-06 16:37:55 +00:00
parent 15bec067ae
commit 0cfcaa31a6
1 changed files with 20 additions and 0 deletions
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20
third_party/pipewire/spa/buffer/meta.h vendored
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@ -47,6 +47,7 @@ enum spa_meta_type {
SPA_META_Control, /**< metadata contains a spa_meta_control
* associated with the data */
SPA_META_Busy, /**< don't write to buffer when count > 0 */
SPA_META_VideoTransform, /**< struct spa_meta_transform */
_SPA_META_LAST, /**< not part of ABI/API */
};
@ -152,6 +153,25 @@ struct spa_meta_busy {
uint32_t count; /**< number of users busy with the buffer */
};
enum spa_meta_videotransform_value {
SPA_META_TRANSFORMATION_None = 0, /**< no transform */
SPA_META_TRANSFORMATION_90, /**< 90 degree counter-clockwise */
SPA_META_TRANSFORMATION_180, /**< 180 degree counter-clockwise */
SPA_META_TRANSFORMATION_270, /**< 270 degree counter-clockwise */
SPA_META_TRANSFORMATION_Flipped, /**< 180 degree flipped around the vertical axis. Equivalent
* to a reflexion through the vertical line splitting the
* bufffer in two equal sized parts */
SPA_META_TRANSFORMATION_Flipped90, /**< flip then rotate around 90 degree counter-clockwise */
SPA_META_TRANSFORMATION_Flipped180, /**< flip then rotate around 180 degree counter-clockwise */
SPA_META_TRANSFORMATION_Flipped270, /**< flip then rotate around 270 degree counter-clockwise */
};
/** a transformation of the buffer */
struct spa_meta_videotransform {
uint32_t transform; /**< orientation transformation that was applied to the buffer,
* one of enum spa_meta_videotransform_value */
};
/**
* \}
*/