avcodec: transmit palette to libavcodec >= 54

modules/codec/avcodec/video.c

@@ -77,7 +77,7 @@ struct decoder_sys_t
 #if LIBAVCODEC_VERSION_MAJOR < 54
     AVPaletteControl palette;
 #else
-# warning FIXME
+    bool palette_sent;
 #endif
 
     /* */
@@ -389,7 +389,13 @@ int InitVideoDec( decoder_t *p_dec, AVCodecContext *p_context,
         p_sys->p_context->palctrl = &p_sys->palette;
     }
 #else
-# warning FIXME
+    if( p_dec->fmt_in.video.p_palette ) {
+        p_sys->palette_sent = false;
+        p_dec->fmt_out.video.p_palette = malloc( sizeof(video_palette_t) );
+        if( p_dec->fmt_out.video.p_palette )
+            *p_dec->fmt_out.video.p_palette = *p_dec->fmt_in.video.p_palette;
+    } else
+        p_sys->palette_sent = true;
 #endif
 
     /* ***** init this codec with special data ***** */
@@ -557,6 +563,17 @@ picture_t *DecodeVideo( decoder_t *p_dec, block_t **pp_block )
         pkt.pts = p_block->i_pts;
         pkt.dts = p_block->i_dts;
 
+#if LIBAVCODEC_VERSION_MAJOR >= 54
+        if( !p_sys->palette_sent )
+        {
+            uint8_t *pal = av_packet_new_side_data(&pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
+            if (pal) {
+                memcpy(pal, p_dec->fmt_in.video.p_palette->palette, AVPALETTE_SIZE);
+                p_sys->palette_sent = true;
+            }
+        }
+#endif
+
         /* Make sure we don't reuse the same timestamps twice */
         p_block->i_pts =
         p_block->i_dts = VLC_TS_INVALID;