[Libav-user] multi-thread decoding

[YIRAN LI]

2016-10-25 11:00 GMT+11:00 Carl Eugen Hoyos <ceffmpeg at gmail.com>:

> 2016-10-25 1:55 GMT+02:00 YIRAN LI <mrfun.china at gmail.com>:
> >
> >
> > 2016-10-25 10:46 GMT+11:00 Carl Eugen Hoyos <ceffmpeg at gmail.com>:
> >>
> >> 2016-10-25 1:40 GMT+02:00 YIRAN LI <mrfun.china at gmail.com>:
> >> > How can I tell if it's being single-thread
> >> > decoded or multi-thread decoded?
> >>
> >> You decide how many threads decoding should
> >> > use (or you set it to automatic).
> >>
> > So if I use -threads 1 that means it must be single-thread
> > decoded, although I can see there are 6 active threads?
>
> If this were not true, you would have found a bug.
>
> ​Thanks Carl, could you help to confirm me, if the command "
ffmpeg.exe -v error -i a.mp4  -threads 0
​/1/2/3/4 ​
 -f null - 2>error.log
​" can do video decoding​
​?
I'm using this command to check the CPU/memory usage when decoding.

Carl Eugen
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