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video-format: update some docs and add a FIXME(2.0)

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This commit is contained in:
Wim Taymans 2014-11-06 09:44:14 +01:00
parent 0f64126919
commit 57b9ea8f54
1 changed files with 7 additions and 3 deletions
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10
gst-libs/gst/video/video-format.h
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@ -272,14 +272,18 @@ typedef void (*GstVideoFormatUnpack) (const GstVideoFormatInfo *info,
* contain at least pack_lines lines with a stride of @sstride and @y * contain at least pack_lines lines with a stride of @sstride and @y
* should be a multiple of pack_lines. * should be a multiple of pack_lines.
* *
* Subsampled formats will use the horizontally cosited component in the * Subsampled formats will use the horizontally and vertically cosited
* destination. Subsampling should be performed before packing. * component from the source. Subsampling should be performed before
* packing.
* *
* Because tis function does not have a x coordinate, it is not possible to * Because this function does not have a x coordinate, it is not possible to
* pack pixels starting from an unaligned position. For tiled images this * pack pixels starting from an unaligned position. For tiled images this
* means that packing should start from a tile coordinate. For subsampled * means that packing should start from a tile coordinate. For subsampled
* formats this means that a complete pixel need to be packed. * formats this means that a complete pixel need to be packed.
*/ */
/* FIXME(2.0): remove the chroma_site, it is unused and is not relevant for
* packing, chroma subsampling based on chroma-site should be done in a separate
* step before packing*/
typedef void (*GstVideoFormatPack) (const GstVideoFormatInfo *info, typedef void (*GstVideoFormatPack) (const GstVideoFormatInfo *info,
GstVideoPackFlags flags, GstVideoPackFlags flags,
const gpointer src, gint sstride, const gpointer src, gint sstride,