[FFmpeg-devel] [PATCH 4/8] avfiltergraph: add avfilter_graph_request_oldest().

Nicolas George nicolas.george at normalesup.org
Sat Apr 21 11:51:07 CEST 2012

Le tridi 3 floréal, an CCXX, Michael Niedermayer a écrit :
> iam not sure about this
> what happens if one seperate sub graph is fed by a real time broadcast
> and the other is fed by a file on disk. ?

Possibly not good things. But this function is not meant to be the sole
scheduling mechanism of a filter graph, only a convenience function to help
drain a filtergraph in a balanced way under normal circumstances.

Would you like a additional note in the doxy comment underlying that point?

Also, please note that the algorithm is the same as in ffmpeg.c to select
the input file. Only one works with timestamps before the graph and the
other timestamps at the output.


  Nicolas George
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