[mythtv] Streaming over network

Curtis Stanford mythtv-dev@snowman.net
Fri Jan 10 21:35:55 EST 2003


Seems to me that encoding a single frame would be very parallelizable. 
Doesn't it break the picture into squares or something that could be 
distributed across multiple processors?

Brian Grossman wrote:
>>>Granted. But is the encoding process suitably for parallelization or 
>>>will it only utilize one CPU?
>>
>>Modern video encoding works by calculating the differences between frames.
>>Thus, in order to do any work on frame N+1, frame N must already be encoded.
>>It is a serial process.
> 
> 
> But it occasionally inserts a non-differential frame, which could be
> used to separate data for parallel encoding.
> 
> Brian
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