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format: improve docs

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https://bugzilla.gnome.org/show_bug.cgi?id=707361
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Wim Taymans 2013-12-26 17:40:05 +01:00 committed by Nicolas Dufresne
parent 12eedf86e8
commit 61cbdf379b
1 changed files with 5 additions and 0 deletions
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5
gst-libs/gst/video/video-format.h
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@ -276,6 +276,11 @@ typedef void (*GstVideoFormatUnpack) (const GstVideoFormatInfo *info,
*
* Subsampled formats will use the horizontally cosited component in the
* destination. Subsampling should be performed before packing.
*
* Because tis function does not have a x coordinate, it is not possible to
* pack pixels starting from an unaligned position. For tiled images this
* means that packing should start from a tile coordinate. For subsampled
* formats this means that a complete pixel need to be packed.
*/
typedef void (*GstVideoFormatPack) (const GstVideoFormatInfo *info,
GstVideoPackFlags flags,