Yes, I believe so. After side-by-side comparation with a good ffmpeg build on my old laptop, I found that these two packages are *required* to build ffmpeg on Debian, even they are optional for ffmpeg.
libxcb-xfixes0-dev libxcb-shm0-dev Thanks. On Wed, 2016-11-09 at 23:25 +0100, Carl Eugen Hoyos wrote: 2016-11-08 6:51 GMT+01:00 肖文良 <xiaowenli...@youku.com<mailto:xiaowenli...@youku.com>>: > I'am trying to capture my X11 desktop sessoin using ffmpeg, but the same > command capture nothing on my new Lenovo T450 laptop running Debian > Jessie. > > The command I used was: ffmpeg -loglevel debug -s 1366x768 -f x11grab > -i :0.0 -c libx264 -crf 28 -preset ultrafast /tmp/output.mp4 > > And the detailed output of ffmepg at: http://pastebin.com/rM8QvkQm > > ffmpeg seems to keep dropping frames according to the log: > frame= 3 fps=0.1 q=-1.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A > dup=0 drop=1241 speed=0.00119x You may be seeing this issue: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=843144 You have to rebuild with libxcb-shm (which is auto-detected if available). Carl Eugen _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org<mailto:ffmpeg-user@ffmpeg.org> http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org<mailto:ffmpeg-user-requ...@ffmpeg.org> with subject "unsubscribe". -- Thanks, 肖文良 Programmer@youku&tudou Mob: 18610724876 Addr: 北京市海淀区中关村海淀大街8号中钢国际广场5层 _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".