[mythtv] PATCH: Commercial detection/skip using blank frames
pat at netburp.com
Sun Feb 23 23:10:01 EST 2003
Would it make more sense to do two threads decoding? A commercial
skip "ringbuf"....the second thread would just decode ahead of the
playback, looking for "commercial skip criteria" and record them as
frame & criteria info... This could allow for multiple types of
frame 1000 -> black/blank counter 1
frame 1001 -> no logo counter 1, black counter 2
frame 1002 -> no logo counter 2, black counter 3
yada yada yada
Then it's a matter of
Enter skip detection
determine current frame
examine skip buffer ( from the 2nd thread )
If the first thread caught up to the second thread (not likely ) it
would pause until the second thread had more output or the skip failed...
If using a true ring buffer it would be needed a method of making sure
the second thread didn't overwrite something the first thread could
Further thought: should this be local to the front end, or a network
operation? How to elminiate duplicate compressed video on the network?
Just thoughts, not demands, or even suggestions :-)
Matt Zimmerman wrote:
>On Sun, Feb 23, 2003 at 10:09:04PM -0500, Andy Davidoff wrote:
>>Thanks so much for your contribution.
>>I guess what I'd like to see is an adjustable buffer size so that I
>>can devote a few hundred megs to commercial-killing.
>To what end? If you intend to store uncompressed video for analysis
>purposes, a few hundred megs (500 or so) will net you approximately one
More information about the mythtv-dev