[FFmpeg-devel] [PATCH 2/2] lavc/qsvenc: add error messeage if ICQ unsupported.

[Zhong Li]

Signed-off-by: Zhong Li <zhong.li at intel.com>
---
 libavcodec/qsvenc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c
index fbd4d85..f4c8df4 100644
--- a/libavcodec/qsvenc.c
+++ b/libavcodec/qsvenc.c
@@ -287,6 +287,12 @@ static int select_rc_mode(AVCodecContext *avctx, QSVEncContext *q)
         return AVERROR(EINVAL);
     }
 
+    if (!want_qscale && avctx->global_quality > 0 && !QSV_HAVE_ICQ){
+        av_log(avctx, AV_LOG_ERROR,
+               "ICQ ratecontrol mode requested, but is not supported by this SDK version\n");
+        return AVERROR(ENOSYS);
+    }
+
     if (want_qscale) {
         rc_mode = MFX_RATECONTROL_CQP;
         rc_desc = "constant quantization parameter (CQP)";
-- 
1.8.3.1