[FFmpeg-cvslog] vaapi_h265: cu_qp_delta should not be used in constant-QP mode

[Mark Thompson]

ffmpeg | branch: master | Mark Thompson <sw at jkqxz.net> | Tue May 31 10:21:19 2016 +0100| [2940e196c5e439d9869f8c02a49a318d0847453c] | committer: Mark Thompson

vaapi_h265: cu_qp_delta should not be used in constant-QP mode

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2940e196c5e439d9869f8c02a49a318d0847453c
---

 libavcodec/vaapi_encode_h265.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavcodec/vaapi_encode_h265.c b/libavcodec/vaapi_encode_h265.c
index 1b1cce7..010db92 100644
--- a/libavcodec/vaapi_encode_h265.c
+++ b/libavcodec/vaapi_encode_h265.c
@@ -868,7 +868,10 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)
 
         vpic->pic_fields.bits.screen_content_flag = 0;
         vpic->pic_fields.bits.enable_gpu_weighted_prediction = 0;
-        vpic->pic_fields.bits.cu_qp_delta_enabled_flag = 1;
+
+        // Per-CU QP changes are required for non-constant-QP modes.
+        vpic->pic_fields.bits.cu_qp_delta_enabled_flag =
+            ctx->va_rc_mode != VA_RC_CQP;
     }
 
     {