[Mesa-dev] [PATCH 06/11] vl/util: add copy func for yv12image to nv12surface

Andy Furniss adf.lists at gmail.com
Thu Jul 21 12:57:04 UTC 2016

Zhang, Boyuan wrote:
> Hi Andy,
> Thanks very much for providing all the information.
> The I420 U V swapping issue still can't be reproduced from my side, I
> will try it again later. CQP issue is fixed in the new patch set I
> just submitted. Please use " ... vaapiencodeh264 rate-control=cqp
> init-qp=x ..." command, where x can be any value b/w 0--51. Please
> give a try and let me know the result. Other issues, e.g. encoding
> speed, ffmpeg, will be addressed/investigated later in separate patch
> as I mentioned. This initial patch set is to bring up VAAPI encode
> for gstreamer with basic functionality working. I will update with
> you once we make progress.

CQP is working OK now.

On the I420 I still see it whatever I try and have just managed to
produce a totally trashed output.

Below produces "expected" output = colors are wrong for I420 but the
vid is OK apart from that.

gst-launch-1.0 videotestsrc num-buffers=5 ! 
video/x-raw,format=I420,width=1280,height=720,framerate=1/1 ! 
vaapih264enc ! h264parse ! mp4mux ! filesink location=I420.mp4

gst-launch-1.0 videotestsrc num-buffers=5 ! 
video/x-raw,format=NV12,width=1280,height=720,framerate=1/1 ! 
vaapih264enc ! h264parse ! mp4mux ! filesink location=NV12.mp4

I then decided I would attach a png showing both outputs, to get it
to fit I repeated above with width=720,height=480 and the result for
I420 was totally trashed, NV12 OK.

Replacing vaapih264enc with x264enc for the trashed case produces
good output - so I don't think it's the input that is trashed at that

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