diff options
| -rw-r--r-- | libavutil/pixdesc.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/libavutil/pixdesc.h b/libavutil/pixdesc.h index a4376b2c0e..705377df8b 100644 --- a/libavutil/pixdesc.h +++ b/libavutil/pixdesc.h @@ -129,10 +129,14 @@ typedef struct AVPixFmtDescriptor { * The pixel format contains RGB-like data (as opposed to YUV/grayscale). */ #define AV_PIX_FMT_FLAG_RGB (1 << 5) + /** - * The pixel format is "pseudo-paletted". This means that FFmpeg treats it as - * paletted internally, but the palette is generated by the decoder and is not - * stored in the file. + * The pixel format is "pseudo-paletted". This means that it contains a + * fixed palette in the 2nd plane but the palette is fixed/constant for each + * PIX_FMT. This allows interpreting the data as if it was PAL8, which can + * in some cases be simpler. Or the data can be interpreted purely based on + * the pixel format without using the palette. + * An example of a pseudo-paletted format is AV_PIX_FMT_GRAY8 */ #define AV_PIX_FMT_FLAG_PSEUDOPAL (1 << 6) /** |