[FFmpeg-user] ffmpeg stalls

[Tom Gleason]

Sorry, turns out it was an issue with our use of proc_open on php.
http://www.php.net/manual/en/function.proc-open.php

We had to use 'a' instead of 'w' on the STDERR pipe to accomodate the
length of ffmpeg output, otherwise it got blocked.

$process = @proc_open($command, array(1 => array('pipe', 'w'), 2 =>
array('pipe', 'a')), $pipe, NULL, NULL, array('bypass_shell' => true));

--
Tom Gleason
Senior Software Developer
Colorhythm
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tgleason at colorhythm.com


On Wed, Apr 23, 2014 at 6:18 PM, Lou <lou at lrcd.com> wrote:

> On Wed, 23 Apr 2014 17:47:38 -0400
> Tom Gleason <tgleason at colorhythm.com> wrote:
>
> > For what reason would FFMPEG stall during a transcode?
> >
> > I have a small EC2 instance, and can easily transcode 10 seconds of a
> file,
> > but when I try to transcode full (say 10 min) files, it always stalls,
> top
> > showing 0% cpu. What would be the likely issue?
> >
> > --
> > Tom Gleason
>
> Please include your ffmpeg command and the complete console output if
> possible.
>
> Does this occur with a particular input or with all inputs? Please
> include a sample input if the issue is limited to specific inputs.
>
> Can this issue be duplicated on another system?
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