[FFmpeg-user] Hooking into MOOV atom move process

[Eugene Gekhter]

Look into the source code - there's a message couldn't move atom to beginning. Can't open input.mp4 . I'm paraphrasing from memory. Basically if the file is moved before the atom move process is finished, the file becomes corrupt. The executing of process takes place from web app

Sent from my iPhone

> On Jun 27, 2014, at 7:02 PM, Reindl Harald <h.reindl at thelounge.net> wrote:
> 
> besides that use 'sudo' is complete nonsense from any
> security point of view we are doing that for years now
> and *no* it's not a ffmpeg problem - after ffmpeg returns
> the encoded file is finished with no but and if
> 
> Am 27.06.2014 20:42, schrieb Eugene Gekhter:
>> Try moving the output files as soon as the exec command is finished.
>> 
>> On Fri, Jun 27, 2014 at 1:39 PM, Molly Millions <
>> mollyrazormillions at gmail.com> wrote:
>> 
>>> 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);
> 
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