On 8 September 2016 at 14:12, Carl Eugen Hoyos <[email protected]> wrote:
> 2016-09-07 17:59 GMT+02:00 Kristijonas Malisauskas <[email protected]>: > > First thing i would suggest doing is setting your > > AVCodecContext to use more threads > > > > for ex: videoCtx->thread_count = 4; > > I believe default is to use all cpu cores. > > Please do not top-post here, Carl Eugen Apologies - I was following what other people were doing - re top-posting. When I set the thread_count correctly (using a dict, setting to "auto" and before the codec was opened) based on a later reply it made a significant difference to speed. So my guess would be that it defaults to 1 CPU core or 1 thread. Simon
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