[MPlayer-users] No video output on ivtv/v4l2 TV out

[Peter Daum]

Thank you so much!
That's certainly nothing I would have found myself.After

  v4l2-ctl --set-fbuf=chromakey=1

all the various output drivers that I tried
(ivtv, v4l2, cvidx) produce a visible output :-)

The sound (when using the hardware decoder) is still extremely
jerky and often fails (while cat > /dev/video16 works fine) -
I'll look into this some more ...

Regards,
                     Peter Daum

Russell Treleaven wrote:
>>> What happens when you do this?
>>>
>>> "cat someVideo.mpg > /dev/video16"
>>>
>>> Where someVideo.mpg is an mpeg2 encoded video and 
>> /dev/video16 is the 
>>> mpeg decoder.
>> The sound plays fine, but the screen stays dark :-(
>>
>> Regards,
> 
> I think we can rule out mplayer now.
> 
> The following line is from dmesg output
> 
> ivtv0-fb: Display size 720x480 (720x480 Virtual) @ 8bpp
> 
> When I "cat someVideo.mpg > /dev/video16"
> I don't see anything because the framebuffer overlay defaults to opaque.
> To make the framebuffer overlay transparent try this.
> v4l2-ctl --set-fbuf=chromakey=1
> 
> I apologize to the list for going off topic.
>  
> Sincerely,
> 
> russ at else.net