latest CVS commit

Paul Davis wrote:

>
>>>      
>>>
>>Hi Paul,
>>could you explain a bit more about this "audio
frames per video frame" 
>>patch ?
>>
>>It seems like you are set on the idea of combining
video and audio in 
>>the same server. However, now I have done some more
testing, I currently 
>>prefer having two separate jack servers, one for
video and one for audio.
>>    
>>
>
>No. Stephane and I have talked about this, and we
conclude that video
>inside JACK is a post-1.0 issue. There are a lot of
issues to be
>discussed. Probably quite a lot more than you may have
considered for
>videojack. Or maybe not. The big problem right now is
that videojack was
>done without any discussion on this list,and seems based
around a
>completely different set of ideas (other than using
shared memory to
>exchange data) than JACK. It would be good to discuss
the existing
>design at all levels.
>
>These new fields are there to allow integration of JACK
into systems
>where the transport system is to be sync'ed to a video
sync pulse. I am
>working with a commercial organization that requires
this, and it seems
>like a required feature if you want to use JACK
transport in combination
>with some other system running on a video clock.
>
>and yes, of course audio_frames_per_video_frame is
non-integer )
>
>--p
>
>
>
>
>
>
>  
>

Hi Paul,
my sincere apologies for jumping to the wrong conclusions -
since you 
had previously mentioned syncing video with audio in the
context of 
videojack, I mistakenly assumed it was something to do with
that.

The design of videojack is not really very much different
from jack 
audio, just that the rate is much slower (e.g. 25Hz instead
of 48000Hz), 
and the buffer size is much larger (width*height*4)

The current set of videojack patches just add new port
types: video_in 
and video_out, and add width and height properties to the
jack server.

There's not much special about the use of jack for video,
other than 
what is mentioned above.

Regards,
Gabriel.





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