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Merge commit '7b02cb29d9d60cdd5ef321043d11d02023e7dc8f' 

* commit '7b02cb29d9d60cdd5ef321043d11d02023e7dc8f':
  pixdesc: Document the component order

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
This commit is contained in:
Hendrik Leppkes 2015-09-12 13:03:04 +02:00
parent a30a8beeb3 7b02cb29d9
commit eadf6cb2c4
1 changed files with 2 additions and 1 deletions
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libavutil/pixdesc.h
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@ -107,11 +107,12 @@ typedef struct AVPixFmtDescriptor {
/** /**
* Parameters that describe how pixels are packed. * Parameters that describe how pixels are packed.
* If the format has 2 or 4 components, then alpha is last.
* If the format has 1 or 2 components, then luma is 0. * If the format has 1 or 2 components, then luma is 0.
* If the format has 3 or 4 components: * If the format has 3 or 4 components:
* if the RGB flag is set then 0 is red, 1 is green and 2 is blue; * if the RGB flag is set then 0 is red, 1 is green and 2 is blue;
* otherwise 0 is luma, 1 is chroma-U and 2 is chroma-V. * otherwise 0 is luma, 1 is chroma-U and 2 is chroma-V.
*
* If present, the Alpha channel is always the last component.
*/ */
AVComponentDescriptor comp[4]; AVComponentDescriptor comp[4];