vaapi_h264: Set max_num_ref_frames to 1 when not using B frames
authorMark Thompson <sw@jkqxz.net>
Tue, 27 Sep 2016 18:08:42 +0000 (19:08 +0100)
committerMark Thompson <sw@jkqxz.net>
Mon, 21 Nov 2016 22:13:41 +0000 (22:13 +0000)
(cherry picked from commit 956a54129db522998a5abae869568dae2c9774cb)

libavcodec/vaapi_encode_h264.c

index 9bcdc04..02836b0 100644 (file)
@@ -778,7 +778,7 @@ static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
 
         vseq->level_idc = avctx->level;
 
-        vseq->max_num_ref_frames = 2;
+        vseq->max_num_ref_frames = 1 + (avctx->max_b_frames > 0);
 
         vseq->picture_width_in_mbs  = priv->mb_width;
         vseq->picture_height_in_mbs = priv->mb_height;