[vaapi AMD VCE] Hardware encoder outputs messed up video
Rob McCathie <[email protected]>
| Newsgroups | gmane.comp.video.mesa3d.user |
|---|---|
| Message-ID | <[email protected]> |
Hello Mesa Users list, I have an AMD A10-7800 APU ( Steamroller/Kaveri/VCE2.0) and would like to use the h264 (MPEG4 AVC) hardware encoding capability that Xorg/Mesa documentation states is supported (https://www.x.org/wiki/RadeonFeature/#index9h2). I've been making attempts with both gstreamer (gst-launch-1.0) and ffmpeg but am having the same problematic outcome with both. I am performing the colourspace conversion to NV12 that research leads me to believe is required (and indeed gst-launch does not succeed if this conversion is not done). (...though Wikipedia says VCE 2.0 also supports YUV444 and i'd like to be able to use it, but one thing at a time.) Here is a video of the gstreamer test pattern encoded using a software encoder (x264), it's produced with this following command: gst-launch-1.0 videotestsrc num-buffers=200 ! video/x-raw,format=NV12 ! x264enc ! video/x-h264,profile=main ! h264parse ! matroskamux ! filesink location=test-x264enc.mkv http://paradoxcomputers.com.au/stuff/amd_vaapi_issue/test-x264enc.mkv It looks how it should. Here's the outcome when i try to use hardware h264 encoding with VA-API, produced with this following command: gst-launch-1.0 videotestsrc num-buffers=200 ! video/x-raw,format=NV12 ! vaapih264enc ! video/x-h264,profile=main ! h264parse ! matroskamux ! filesink location=test-vaapih264enc.mkv http://paradoxcomputers.com.au/stuff/amd_vaapi_issue/test-vaapih264enc.mkv It's all messed up, the image is duplicated (above and below) and the colours are wonky (like the colour channels are separated and all offset from each other... or something). I've tested this on Debian 9 (Mesa 13.0.6) and an up-to-date Arch Linux install (Mesa 17.1.4) and get the same result on both. On the Arch Linux install I've also tried using AMDGPU driver rather than radeon - same result. (well actually, the output on AMDGPU did seem a little different, but messed up in a similar fashion nonetheless). Any help would be appreciated. -- Regards, Rob McCathie _______________________________________________ mesa-users mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-users