Problems converting video file: Unrecognized option 'preset'

[ttseng]

Using this buildpack, I was able to install ffmpeg version git-2013-06-02-5711e4f for my Heroku app. When I try to convert a video file, though, I get the following error:

2013-11-17T19:45:05.255059+00:00 app[web.1]: Running transcoding...
2013-11-17T19:45:05.255059+00:00 app[web.1]: ffmpeg -y -i /app/public/uploads/tmp/1384717504-2-9158/Untitled.mov -vcodec libx264 -acodec libfaac -s 640x360 -qscale 0 -preset slow -g 30 -aspect 1.7777777777777777 /app/public/uploads/tmp/1384717504-2-9158/tmpfile.mp4
2013-11-17T19:45:05.255059+00:00 app[web.1]:
2013-11-17T19:45:05.317895+00:00 app[web.1]: Failed encoding...
2013-11-17T19:45:05.317895+00:00 app[web.1]: ffmpeg -y -i /app/public/uploads/tmp/1384717504-2-9158/Untitled.mov -vcodec libx264 -acodec libfaac -s 640x360 -qscale 0 -preset slow -g 30 -aspect 1.7777777777777777 /app/public/uploads/tmp/1384717504-2-9158/tmpfile.mp4
2013-11-17T19:45:05.317895+00:00 app[web.1]:
2013-11-17T19:45:05.317895+00:00 app[web.1]: ffmpeg version git-2013-06-02-5711e4f Copyright (c) 2000-2013 the FFmpeg developers
2013-11-17T19:45:05.317895+00:00 app[web.1]: built on Jun 2 2013 07:38:40 with gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1)
2013-11-17T19:45:05.317895+00:00 app[web.1]: configuration: --enable-shared --disable-asm --prefix=/app/vendor/ffmpeg
2013-11-17T19:45:05.317895+00:00 app[web.1]: libavutil 52. 34.100 / 52. 34.100
2013-11-17T19:45:05.317895+00:00 app[web.1]: libavcodec 55. 13.100 / 55. 13.100
2013-11-17T19:45:05.317895+00:00 app[web.1]: libavformat 55. 8.102 / 55. 8.102
2013-11-17T19:45:05.317895+00:00 app[web.1]: libavdevice 55. 2.100 / 55. 2.100
2013-11-17T19:45:05.318137+00:00 app[web.1]: libavfilter 3. 74.101 / 3. 74.101
2013-11-17T19:45:05.318137+00:00 app[web.1]: libswscale 2. 3.100 / 2. 3.100
2013-11-17T19:45:05.318137+00:00 app[web.1]: libswresample 0. 17.102 / 0. 17.102
2013-11-17T19:45:05.318137+00:00 app[web.1]: Unrecognized option 'preset'.
2013-11-17T19:45:05.318137+00:00 app[web.1]: Error splitting the argument list: Option not found
2013-11-17T19:45:05.318137+00:00 app[web.1]:
2013-11-17T19:45:05.318137+00:00 app[web.1]: Errors: no output file created.

Full details here: http://stackoverflow.com/questions/20035338/ffmpeg-on-heroku-unrecognized-option-preset

[shunjikonishi]

Hi,
I saw your stackoverflow.
I also think this is compile option issue.
But unfortunately I don't familiar with ffmpeg compile option.
And recently I don't use this buildpack.

I compiled the ffmpeg by referring to this page.

https://gist.github.com/coopermaruyama/3963576

You can compile your own ffmpeg by same step.
And you can use it by replacing following line.

https://github.com/shunjikonishi/heroku-buildpack-ffmpeg/blob/master/bin/compile#L10

Best.

Shunji