On 2018-08-04 19:56:20, Louis-Philippe Véronneau wrote: > Package: vlc > Version: 3.0.3-1-2 > Severity: important > > Hi! > > Trying to play webm videos encoded with the following ffmpeg parameters > results in garbled videos. It seems the issue is caused by a lack of > support for VA-API on older CPUs. > > ----- > ffmpeg -loglevel warning -y -f concat -safe 0 -i concat.txt -c:v > libvpx-vp9 -b:v 1024k -minrate 512k -maxrate 1484.8k -r:v 30/1 -crf 32 > -speed 4 -pass 1 -passlogfile passlogfile -c:a libopus -b:a 128k -ar > 48000 -t 2923.138 -pix_fmt yuv420p file.webm > ----- > > (concat.txt is a file with paths to multiple mkv files to be concatenated.) > > If you can find an old Core duo computer (an old Thinkpad X200 should > do) or a computer with a CPU that doesn't support VA-API, you can try > reproducing with this video: > > https://meetings-archive.debian.net/pub/debian-meetings/2018/DebConf18/2018-07-30/building-a-debian-derivative-lessons-lea.webm > > Here's what VLC tells me when I run that video: > > libva info: VA-API version 1.2.0 > libva info: va_getDriverName() returns 0 > libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so > libva info: Found init function __vaDriverInit_1_0 > libva info: va_openDriver() returns 0 > > On another computer, also without VA-API support. > > libva info: VA-API version 1.2.0 > libva info: va_getDriverName() returns 0 > libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so > libva info: Found init function __vaDriverInit_1_0 > libva error: /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so init failed > libva info: va_openDriver() returns -1 > [00007f8f14002cc0] glconv_vaapi_drm gl error: vaInitialize: unknown > libva errorf4pV3UiGyFuxVg5EPz6v Please provide the full output of vlc -vvv so that we can see what's happening. Cheers > MPV plays the video just fine, but I guess that doesn't help :9 > > -- > ,''`. > : :' : Louis-Philippe Véronneau > `. `'` pollo@debian.org / veronneau.org > `- > -- Sebastian Ramacher
Attachment:
signature.asc
Description: PGP signature