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-rw-r--r--libavutil/avutil.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavutil/avutil.h b/libavutil/avutil.h
index 20735183c7..799e764f7f 100644
--- a/libavutil/avutil.h
+++ b/libavutil/avutil.h
@@ -76,6 +76,10 @@ unsigned avutil_version(void);
* components stored in AVFrame.data[1] should be in the range 0..255.
* This is important as many custom PAL8 video codecs that were designed
* to run on the IBM VGA graphics adapter use 6-bit palette components.
+ *
+ * For all the 8bit per pixel formats, an RGB32 palette is in data[1] like
+ * for pal8. This palette is filled in automatically by the function
+ * allocating the picture.
*/
enum PixelFormat {
PIX_FMT_NONE= -1,