[FFmpeg-user] Not using all resources

Henk D. Schoneveld belcampo at zonnet.nl
Sat Sep 12 23:34:36 CEST 2015

On 12 Sep 2015, at 22:16, Andy Furniss <adf.lists at gmail.com> wrote:

> Henk D. Schoneveld wrote:
>> First tried to upload to incoming but ii’s presented to me as RO
>> Uploaded a 20MB file for someone interested in investigating at:
>> http://we.tl/CpG3aaamaO
> It does seem to decode slower than other similar bitrate TV samples I have.
Would this suggest that load when playing of such a file is higher then ‘normal behaving’ files ?
Or write-speed of decoded output to SSD or memory would be limited/lower then ‘normal behaving’ files ?
> It also shows my cpufreq issue = 50% faster if I force perf.
> I notice I don't gain with anything more than threads=2, so perhaps it's
> something to do with slices (pure speculation I don't even know how to
> look into h264 to find that info).
> I have other samples which do gain speed with threads > 2.
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