[MPlayer-users] Problems recording pwc webcam

[andrea]

On 12/10/2012 09:31 PM, Reimar Döffinger wrote:
> On Mon, Dec 10, 2012 at 09:18:18PM +0000, andrea wrote:
>> On 12/09/2012 10:54 PM, Carl Eugen Hoyos wrote:
>>>> 2) I cannot use -dumpstream in mplayer
>>>
>>> -dumpstream does not work for every input, 
>>> it cannot work for tv.
>>> (It is particularly useful for dvb:// and dvd://)
>>
>> I am curious to know why the stream from the tv cannot be saved.
>> what is the fundamental difference?
> 
> The V4L interface is not stream-based, it is based on individual
> video frames.
> Furthermore, audio and video come from separate sources,
> so providing a stream would involve muxing them
> together, which would be quite annoying to implement.
> However you should be able to use -dumpvideo to only
> save the video steam, but that still leaves the issue
> that you'd usually still want to have the audio as well.
> 

Indeed, -dumpvideo works.
Thanks