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avutil/pixfmt: Improve ascii art showing the meaning of the AVChromaLocation values 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-19 17:47:04 +02:00
parent 7786a91b47
commit 710abaf2c5
1 changed files with 7 additions and 3 deletions
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10
libavutil/pixfmt.h
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@ -530,9 +530,13 @@ enum AVColorRange {
/**
* Location of chroma samples.
*
* X X 3 4 X X are luma samples,
* 1 2 1-6 are possible chroma positions
* X X 5 6 X 0 is undefined/unknown position
* Illustration showing the location, the left shows only luma, the right
* shows the location of the chroma samples, the 2 could be imagined to overlay
* each other but are drawn seperately due to limitations of ASCII
* ______ ______
* |X X ... |3 4 X ... X are luma samples,
* | |1 2 1-6 are possible chroma positions
* |X X ... |5 6 X ... 0 is undefined/unknown position
*/
enum AVChromaLocation {
AVCHROMA_LOC_UNSPECIFIED = 0,