References ▼
The following attributes are supported by the LEAD Video Rotation Transform through the IMFAttributes interface.
| Data type | Attribute CLSID | Description |
|---|---|---|
| UINT32 (BOOL) | LMF_ROTATION_REVERSE | Sets or gets reverse option, set to TRUE to enable the reverse option. |
| UINT32 (BOOL) | LMF_ROTATION_FLIP | Sets or gets Flip option, set to TRUE to enable the flip option. |
| UINT32 (long) | LMF_ROTATION_ROTATIONANGLE | Sets or gets the rotation angle, it should be a multiple of right angle (90). Unit of angle is degree. |
| UINT32 (BOOL) | LMF_ROTATION_DEFAULTREVERSE | Default Reverse status.Original value is FALSE. |
| UINT32 (BOOL) | LMF_ROTATION_DEFAULTFLIP | Default Flip status.Original value is FALSE. |
| UINT32 (long) | LMF_ROTATION_DEFAULTROTATIONANGLE | Default Rotation Angle.Original value is zero. |
Note: Changes that affect the video frame dimensions cannot be performed while the media session is active, as a result these changes will be reverted. You must close the currently open media, change the properties, and then re-open the media.
For more information on how to use the Transform Attributes, refer to Using Media Foundation Transform Attributes.