On 9/4/19 11:13 AM, Scott Doty wrote: > > On 9/3/19 1:34 AM, Hans Verkuil wrote: >> >> Never mind, hdpvr uses read(), not streaming I/O. Of course this >> doesn't work... >> >> Just plain 'cat /dev/videoX >x.mpg' will do. >> >> > > Okay, tried that, it produces data that vlc can then play back. > > So I think I'm running into a problem with vlc instead of hdpvr. It's > just weird that mplayer, vlc, and ffplay would all three be unable to > use it. > > I'm at work atm, will plug it back in when I get home and see for how > long it will read data with cat. > > Thank you for looking, now I feel a bit dumb. > > -Scott > Yep, reads indefinitely. _[/tmp]_(scott@eva)_ $ time -p cat /dev/video2 > out5.ts ^C real 45.49 user 0.00 sys 0.27 _[/tmp]_(scott@eva)_ $ time -p cat /dev/video2 > out6.ts Furthermore, I can run "vlc out6.ts", and it will play the file until it reaches the end (which it won't, if I keep writing to it). So this appears to be a problem in userland. My apologies for reporting otherwise. -Scott
