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| author | Fei Jiang <fei.jiang@intel.com> | 2010-10-18 17:30:53 +0800 |
|---|---|---|
| committer | Fei Jiang <fei.jiang@intel.com> | 2010-10-18 17:30:53 +0800 |
| commit | 825b15b3ddd74e090a87a4f9cfe2bda499db3a4f (patch) | |
| tree | ad7aac00d4ebaa26c83586321ff778b4e1e0d8c6 | |
| parent | 0477116931e16ab7b0682bebf7b0cef095114266 (diff) | |
| download | libva-825b15b3ddd74e090a87a4f9cfe2bda499db3a4f.tar.gz | |
Add more comments for the cisco's positioning, cropping, blend and fade in/out effect.
| -rw-r--r-- | va/va.h | 13 |
1 files changed, 11 insertions, 2 deletions
@@ -137,6 +137,12 @@ typedef int VAStatus; /* Return status type from functions */ #define VA_TOP_FIELD 0x00000001 #define VA_BOTTOM_FIELD 0x00000002 +/* + * Enabled the positioning/cropping/blending feature: + * 1, specify the video playback position in the isurface + * 2, specify the cropping info for video playback + * 3, encoded video will blend with background color + */ #define VA_ENBLE_BLEND 0x00000004 /* video area blend with the constant color */ /* @@ -144,7 +150,7 @@ typedef int VAStatus; /* Return status type from functions */ * for hardware overlay based implementation this flag * can be used to turn off the overlay */ -#define VA_CLEAR_DRAWABLE 0x00000008 +#define VA_CLEAR_DRAWABLE 0x00000008 /* Color space conversion flags for vaPutSurface() */ #define VA_SRC_BT601 0x00000010 @@ -1801,7 +1807,10 @@ typedef enum VADisplayAttribContrast = 1, VADisplayAttribHue = 2, VADisplayAttribSaturation = 3, - /* client can specifiy a background color for the target window */ + /* client can specifiy a background color for the target window + * the new feature of video conference, + * the uncovered area of the surface is filled by this color + * also it will blend with the decoded video color*/ VADisplayAttribBackgroundColor = 4, /* * this is a gettable only attribute. For some implementations that use the |