Do you get the same failure using testsrc for input? On Thu, Oct 2, 2014 at 8:00 AM, Mark Umansky <[email protected]> wrote:
> Hello, > > I am currently recording video of the desktop using UScreenCapture set up > as shown in > http://nerdlogger.com/2011/11/03/stream-your-windows-desktop-using-ffmpeg/, > that's all set up working fine. Running the ffmpeg static 64 bit build from > 2014-09-28 (git-3edb9aa) in Windows 7 64bit > > I get playable fragmented mp4 (played in VLC) saving correctly with the > following command: > > ffmpeg -f dshow -i video="UScreenCapture" -vcodec libx264 -r 25 -q 5 > -preset ultrafast -movflags frag_keyframe C:\Users\user\Desktop\video.mp4 > -y > > I'd like to segment files by time, so I get X minute chunks of video that > are all individually playable as well as preserving fragmentation in case > of power loss (this will be running on a portable computer). > > When I run: > > ffmpeg -f dshow -i video="UScreenCapture" -codec copy -map 0 -f segment > -vcodec libx264 -q 5 -r 25 -preset ultrafast -movflags frag_keyframe > -segment_time 10 -reset_timestamps 1 C:\Users\user\Desktop\Video_%04d.mp4 -y > > I cannot get the last file (the fragmented one) to play at all. (The > segmented files before the last one are fine) The last file has data in it > (filesize is non-zero) but VLC cannot open it. Ideally the fragmented file > wouldn't require any additional processing later to turn it into a > non-fragmented file that's playable. > > Any help would be appreciated. > > Thanks, > Mark > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
