[linux-dvb] Re: loosing data with Freeze command

[Ralph Metzler <rjkm@metzlerbros.de>]

Johannes Stezenbach writes:
 > >  2)	- you freeze video with driver command FREEZE and you stop the video
 > > source : the decoder freeze the video on a still picture.
 > > 	- you restart decoding with driver command CONTINUE and you restart
 > > the video source : the decoder restart but there is a big TS interruption
 > > (about 1 second).
 > > 
 > > Does the CONTINUE command flush internal board buffer ?
 > 
 > Yes. It is not optimally implemented in the AV7110 firmware.


If you feed a stream via CI interface (what kind of hardware is this
btw.?) it is just like when coming from the frontend. In this case
the firmware does practically nothing. The driver issues a video
freeze and continue command (see vidcom() command) which the firmware 
just sends unchanged to the MPEG decoder microcode. 

In the case of playback from the PC there also is no buffer flush as
far as I can see.

Ralph


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