Hi,
I've encountered a strange problem. I try to temporary stop an MPEG
datastream. That stoping should be frame accurate.
This appeared to be working perfectly, when i just stoped sending data
to the driver. The picture freezes and comes back alive when i resume
the datastream. No additional ioctl's are needed.
The only problem is: it doesn't stop on the last frame. It stop's some
frames before that. The missing frames are actualy played, when i resume
the datastream.
It would appear as if the driver internal buffers are only flushed after
they have reached a certain fill-level.
During my further investigation, i stumbled accross the play_iframe()
function, which apparently deals with the same problem. The I-frame is
simply repeated n-times, so that the buffer contains 400kb of data,
which will apparently then be flush.
I can't use play_iframe() since the last frame might not be an I-frame.
So my question is, how do i force the driver do flush it's current
buffer content to the card?
Have fun
Andreas
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