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avutil/pixfmt: Document chroma plane size for odd resolutions

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
pull/349/head
Michael Niedermayer 7 years ago
parent 9cb3d8fcb7
commit be0b77e6e8
1 changed files with 4 additions and 0 deletions
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  1. 4
      libavutil/pixfmt.h

4
libavutil/pixfmt.h
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@ -42,6 +42,10 @@
* This is stored as BGRA on little-endian CPU architectures and ARGB on * This is stored as BGRA on little-endian CPU architectures and ARGB on
* big-endian CPUs. * big-endian CPUs.
* *
* @note
* If the resolution is not a multiple of the chroma subsampling factor
* then the chroma plane resolution must be rounded up.
*
* @par * @par
* When the pixel format is palettized RGB32 (AV_PIX_FMT_PAL8), the palettized * When the pixel format is palettized RGB32 (AV_PIX_FMT_PAL8), the palettized
* image data is stored in AVFrame.data[0]. The palette is transported in * image data is stored in AVFrame.data[0]. The palette is transported in

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