[FFmpeg-user] Concurrent Segment/Concat Read/Writes

Robert Nagy ronag89 at gmail.com
Sun Apr 26 12:05:36 CEST 2015

In what way does it depend on the formats? The files are streamed to/from
in a nut container.

I've managed to fake it on the segmenting side by buffering through a file,
i.e. the segmenter writes to disk and then I wait for the segment_list
items and start uploading and then remove from disk once finished.
Unfortunately this solution will only upload completed segments, it cannot
upload while writing since the segment_list is only updated for finished

On the concat side I haven't found any workaround.

On Sun, Apr 26, 2015 at 11:20 AM, Nicolas George <george at nsup.org> wrote:

> Le septidi 7 floréal, an CCXXIII, Robert Nagy a écrit :
> > I'm using ffmpeg to segment/concat a 120Mbit/s file in 2 second segments
> > to/from a HTTP server. The problem is that ffmpeg only writes/reads one
> > segment at a time which doesn't fully use all available bandwidth.
> >
> > Each request to/from the server has a limit of 10MB/s. However using 5+
> > concurrent request it can get all the way up to 50+ MB/s.
> >
> > Is there some way I can get the segment/concat muxer/demuxer to run
> several
> > requests concurrently?
> Not currently.
> I can see several manual solutions, based on using an external HTTP client
> instead of the one built into FFmpeg, but it all depends on the exact
> formats you use.
> Regards,
> --
>   Nicolas George
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