[FFmpeg-user] Hooking into MOOV atom move process

Fri Jun 27 20:39:03 CEST 2014

I have just run your script and could not reproduce anything you've
described. When exec returns all of the output files are done, there are no
content changes. The problem might be an out of memory error. That's why
exec returns prematurely. I presume you are running in a shared host
environment. So check your php.ini (or check the phpinfo() output before
running your script) also check your nginx and or apache config for php
related memory limits or RLimitMem options. Also, check yout exitcode.

On Fri, Jun 27, 2014 at 6:49 PM, Eugene Gekhter <egekhter at pixcel.com> wrote:

> $cmd = 'sudo ffmpeg -i ' . $local_file . ' -y -vcodec libx264 -tune
> zerolatency -movflags faststart -crf 23 -profile:v high -level:v 4.0
> -maxrate 6000k -bufsize 12000k -acodec libfdk_aac -b:a 256k ' .
> $output_directory. $data['temp_file_key'] . '_HQ.mp4 -vcodec libx264 -s ' .
> $sq_width . 'x' . $sq_height . ' -tune zerolatency -movflags faststart -crf
> 25 -profile:v main -level:v 3.1 -maxrate 1400k -bufsize 1400k -acodec
> libfdk_aac -b:a 256k ' . $output_directory. $data['temp_file_key'] .
> '_SQ.mp4 -ss ' . $seek_half . ' -f image2 -vframes 1 ' . $output_directory.
> $data['temp_file_key'] . '_poster.jpg -ss ' . $seek_half . ' -f image2 -vf
> scale=-1:240 -vframes 1 ' . $output_directory. $data['temp_file_key'] .
> '_thumb.jpg' . ' 1> ' . $log_directory . $data['temp_file_key'] . '_log.txt
> 2>&1';
>
> exec($cmd, $out, $ret);
>
>
> *Eugene Gekhter* / CEO
>
> (847) 272-8207/ egekhter at pixcel.com
> *Pixcel* Office: (800) 557-3508
> 3336 Commercial Ave. / Northbrook, IL 60062
> http://www.pixcel.com
>
>
>
>
>
>
> On Fri, Jun 27, 2014 at 11:43 AM, Molly Millions <
> mollyrazormillions at gmail.com> wrote:
>
> > Of course it returns, since you must be running two separate ffmpeg
> > commands (separated by a ;) after each other. Can you copy the command
> you
> > are executing from php?
> >
> >
> > On Fri, Jun 27, 2014 at 4:47 PM, Eugene Gekhter <egekhter at pixcel.com>
> > wrote:
> >
> > > I execute ffmpeg command from PHP script.
> > > The execute command goes on for a long time, but for some reason, it
> > > returns as soon as encoding is finished and then continues running rest
> > of
> > > my script. It returns after encoding the whole video, but before moving
> > the
> > > MOOV atom to beginning. I'm not familiar with the signals that go on in
> > the
> > > background to know exactly the reason.
> > >
> > >
> > > *Eugene Gekhter* / CEO
> > >
> > > (847) 272-8207/ egekhter at pixcel.com
> > > *Pixcel* Office: (800) 557-3508
> > > 3336 Commercial Ave. / Northbrook, IL 60062
> > > http://www.pixcel.com
> > >
> > >
> > >
> > >
> > >
> > >
> > > On Fri, Jun 27, 2014 at 9:32 AM, Denys Khanzhyiev <xdenser at gmail.com>
> > > wrote:
> > >
> > > > So you try to move file before ffmpeg finishes?
> > > > I move files converted with this flag w/o problems after ffmpeg
> exits.
> > > >
> > > >
> > > > 2014-06-27 16:31 GMT+03:00 Eugene Gekhter <egekhter at pixcel.com>:
> > > >
> > > > > On Fri, Jun 27, 2014 at 8:23 AM, Denys Khanzhyiev <
> xdenser at gmail.com
> > >
> > > > > wrote:
> > > > >
> > > > > > Why not just directly use option -movflags faststart?
> > > > > >
> > > > > >
> > > > > > 2014-06-27 16:14 GMT+03:00 Eugene Gekhter <egekhter at pixcel.com>:
> > > > > >
> > > > > > > Hi,
> > > > > > >
> > > > > > > Does anybody know how to hook into this process from Linux
> > command
> > > > > line?
> > > > > > >
> > > > > > > Basically, to enable users to start streaming a video before
> > > > > downloading
> > > > > > > the whole file, after encoding a h.264 video file, the MOOV
> atom
> > > > needs
> > > > > to
> > > > > > > be moved from the end of the file to the beginning of the file.
> > > Since
> > > > > we
> > > > > > > move the file to its final destination right after encoding is
> > > > finished
> > > > > > so
> > > > > > > the user can start using it right away, the whole movie gets
> > > > corrupted
> > > > > if
> > > > > > > the MOOV atom has not been properly moved. I initially put in
> a 5
> > > > > second
> > > > > > > sleep then a 30 second sleep into the script, but that is not a
> > > > blanket
> > > > > > > solution so I need to figure out a way to hook into the end of
> > the
> > > > moov
> > > > > > end
> > > > > > > process.
> > > > > > >
> > > > > > > I hope somebody has a simple solution to this problem.
> > > > > > >
> > > > > > > Thank you,
> > > > > > >
> > > > > > > *Eugene Gekhter* / CEO
> > > > > > >
> > > > > > > (847) 272-8207/ egekhter at pixcel.com
> > > > > > > *Pixcel* Office: (800) 557-3508
> > > > > > > 3336 Commercial Ave. / Northbrook, IL 60062
> > > > > > > http://www.pixcel.com
> > > > > > > _______________________________________________
> > > > > > > ffmpeg-user mailing list
> > > > > > > ffmpeg-user at ffmpeg.org
> > > > > > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> > > > > > >
> > > > > > _______________________________________________
> > > > > > ffmpeg-user mailing list
> > > > > > ffmpeg-user at ffmpeg.org
> > > > > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> > > > > >
> > > > >
> > > > > That is the case, I am using that flag to encode my video, however,
> > as
> > > it
> > > > > says on the website, the move process can take *a while*.
> > > > > There is this solution for Atomic Parsley or qtfaststart
> > > > > <
> > > http://superuser.com/questions/559372/using-ffmpeg-to-locate-moov-atom
> >
> > > > > which
> > > > > could be used to check every x seconds if the there's a preg_match
> > > (PHP)
> > > > on
> > > > > the output of that process, but I am looking for an ffmpeg-first
> > > > solution.
> > > > >
> > > > > Thanks,
> > > > >
> > > > >
> > > > > *Eugene Gekhter* / CEO
> > > > >
> > > > > (847) 272-8207/ egekhter at pixcel.com
> > > > > *Pixcel* Office: (800) 557-3508
> > > > > 3336 Commercial Ave. / Northbrook, IL 60062
> > > > > http://www.pixcel.com
> > > > > _______________________________________________
> > > > > ffmpeg-user mailing list
> > > > > ffmpeg-user at ffmpeg.org
> > > > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> > > > >
> > > > _______________________________________________
> > > > ffmpeg-user mailing list
> > > > ffmpeg-user at ffmpeg.org
> > > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> > > >
> > > _______________________________________________
> > > ffmpeg-user mailing list
> > > ffmpeg-user at ffmpeg.org
> > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> > >
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> > ffmpeg-user at ffmpeg.org
> > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> >
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