[pvrusb2] Unable to play video

[Phudgee]

Mike Isely wrote:
> On Sat, 3 Feb 2007, Phudgee wrote:
>
>   
>> I'm not sure what I need to do. I've tried many other TV apps (TvTime,
>> KDETV, kplayer) and they all have issues, so I'm inclined to think it's
>> something with the driver install, and not so much a particular application.
>>     
>
> TvTime will likely never work with this driver, due to the fact that it 
> does not handle mpeg decoding.
>
> KDETV is primarily a DVB application not a V4L application.  I've heard 
> that it can be coaxed to work, but I would not use that to judge the 
> configuration of the driver.
>
>   
>> Does anyone have any suggestions, as to how I can get this working?
>>     
>
> If you just plugged the device in and then ran mplayer, then who knows 
> what the heck you are tuning.  The driver will start in TV mode with the 
> frequency set to correspond to US broadcast channel 7, however if there 
> is no such station in your area (or you don't have an antenna connected) 
> then you're going to have problems.  You need to tune the device.
>
> If tuning problems are suspected, consider trying the composite or 
> s-video input.  (Hook up a VCR or a DVD player to that input.)  That 
> operates downstream of the RF section so if you can get that to work 
> then you know that the remaining problem(s) are tuning related.  You can 
> use the sysfs interface to control the input selection.
>
> The fact that the driver is reporting successful initialization is a 
> good sign.  For that to happen the driver has to be successfully talking 
> to the device and both the FX2 and the encoder's firmware had to have 
> been successfully loaded.  You might still have issues with some of the 
> chip-level drivers that need to attach, but a cursory glance at your 
> log output suggests that the right modules are connecting into the 
> driver for a 24xxx device.
>
> Another thing you can do is just "cat /dev/video >/tmp/foo.mpg".  Then 
> from another window see if that file's size is growing.  If mplayer is 
> sticking then I would expect this file to remain at 0 bytes, but if the 
> file is getting data then I would start looking at your mplayer 
> configuration.  Note also that you can of course then take /tmp/foo.mpg 
> and just pump that into mplayer later.
>
>   -Mike
>
>   
Thanks for the info.

I'm not familiar with sysfs so I'll do some reading on that.

I did however 'cat /dev/video >/tmp/foo.mpg' and the file size just sat
at 0 bytes.

CJ