avcodec: Document AV_PKT_DATA_PALETTE side data type

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 607688cf6f4c3158bd8bb55b9b2c53959a940c53..167525dda35c0442fe1bef82551ef54cbfabf4f5 100644 (file)
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1189,6 +1189,11 @@ typedef struct AVCPBProperties {
  * @{
  */
 enum AVPacketSideDataType {
+    /**
+     * An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE
+     * bytes worth of palette. This side data signals that a new palette is
+     * present.
+     */
     AV_PKT_DATA_PALETTE,
 
     /**