[FFmpeg-cvslog] lavu/qsv: add log message for libmfx version

[Zhong Li]

ffmpeg | branch: master | Zhong Li <zhong.li at intel.com> | Thu Dec 28 17:38:32 2017 +0800| [e23190269fb6e8217d080918893641ba3e0e3556] | committer: Luca Barbato

lavu/qsv: add log message for libmfx version

It is benefit to diagnose issues related to different libmfx version.

Signed-off-by: Zhong Li <zhong.li at intel.com>
Signed-off-by: Luca Barbato <lu_zero at gentoo.org>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e23190269fb6e8217d080918893641ba3e0e3556
---

 libavutil/hwcontext_qsv.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
index 5018a05b9a..9270b2258f 100644
--- a/libavutil/hwcontext_qsv.c
+++ b/libavutil/hwcontext_qsv.c
@@ -1036,6 +1036,10 @@ static int qsv_device_derive_from_child(AVHWDeviceContext *ctx,
         goto fail;
     }
 
+    av_log(ctx, AV_LOG_VERBOSE,
+           "Initialize MFX session: API version is %d.%d, implementation version is %d.%d\n",
+           MFX_VERSION_MAJOR, MFX_VERSION_MINOR, ver.Major, ver.Minor);
+
     MFXClose(hwctx->session);
 
     err = MFXInit(implementation, &ver, &hwctx->session);