VLC + TV tuner

[Cramac]

Hello.
i run vlc:
cvlc 'v4l2:///dev/video0:width=720:height=576:tuner-frequency=143250:bitrate=3000000:maxbitrate=4000000' --sout '#transcode{vcodec=mpgv,vb=5000,audio=mpga,ab=512,channels=1}:standard{access=http,mux=dummy,dst=0.0.0.0:8080}'

but broadcasting is not happening in the log only
[0xb5a06928] rawvideo decoder warning: invalid frame size (622080 < 933120)
[0xb5a06928] rawvideo decoder warning: invalid frame size (622080 < 933120)

how to fix?

OS - ubuntu 14.04 server

[Rémi Denis-Courmont]

This is a device driver bug, so get a fixed V4L2 device driver.

[Cramac]

and do not tell me where to download?

[Rémi Denis-Courmont]

How am I supposed to know that? It's not a VLC thing.

[Daniel Ceregatti]

I'm experiencing the same problem and I doubt it's a device driver issue. Granted, the change seems tied to an upgraded Linux kernel, but other v4l2 apps, such as xawtv and mplayer, continue to work properly when using v4l2 devices. I can only conclude it's something the vlc vl42 module isn't accounting for. I'm going to post my issue in a separate post, but I decided to post here because I believe this is not a device driver issue.

[Rémi Denis-Courmont]

What the error says is, based on the format and resolution, VLC expects at least 933120 bytes per frame, and the driver returns 622080 only. Without the verbose logs, we do not know what the format is, and we are not sure if the resolution really is 720x576. It is thus not possible to say whether this is a VLC or driver bug. But empirically, this is a driver bug.