[FFmpeg-user] Turn Off Multi-Threading

[Paul B Mahol]

On 7/30/13, James Board <jpboard2 at yahoo.com> wrote:
> I'm using ffmpeg to edit a large file with the Select filter (-vf select) on
> a Linux
> machine.  When I run 'top' this process is consuming almost 500%
> of my CPU (according to 'top').  Is ffmpeg multi-threading this
> edit?  Or is the Select filter multi-threaded?  If so, how can I
> tell ffmpeg to use a single-thread?

select filter use single thread only.

Main reason why select filter use so much CPU is probably
decoding process of video itself.