avcodec/photocd: implement FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM

libavcodec/photocd.c

@@ -325,6 +325,9 @@ static int photocd_decode_frame(AVCodecContext *avctx, AVFrame *p,
     if (ret < 0)
         return ret;
 
+    if (avctx->skip_frame >= AVDISCARD_ALL)
+        return avpkt->size;
+
     if ((ret = ff_thread_get_buffer(avctx, p, 0)) < 0)
         return ret;
 
@@ -466,5 +469,6 @@ const FFCodec ff_photocd_decoder = {
     .close          = photocd_decode_close,
     FF_CODEC_DECODE_CB(photocd_decode_frame),
     .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
+    .caps_internal  = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
     CODEC_LONG_NAME("Kodak Photo CD"),
 };