Errno::ENOENT (No such file or directory - the ffmpeg binary, '/usr/local/bin/ffmpeg', is not executable) in Heroku

[AlbertMontolio]

I am trying to make ffmpeg work in heroku but without success.

I think the problem is with the buildpack. I am using this one:

https://github.com/jonathanong/heroku-buildpack-ffmpeg-latest.git

I add it in the dashboard: https://dashboard.heroku.com/apps/name_ap/settings
Next to the heroku/ruby buildpack

When deploying, I see the builidpack used:

remote: -----> ffmpeg app detected
remote: -----> Install ffmpeg
remote:        DOWNLOAD_URL =  https://johnvansickle.com/ffmpeg/builds/ffmpeg-git-amd64-static.tar.xz
remote:        exporting PATH
remote: -----> Discovering process types
remote:        Procfile declares types -> (none)

But I am not sure if the library ffmpeg is installed or if the path finds it.

I checked the version of ffprobe and it appears to be installed:

heroku run "ffprobe -version"
Running ffprobe -version on ⬢ wikisalsaapi... up, run.6204 (Free)
ffprobe version N-53917-g5ff2ff6bd9-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2007-2020 the FFmpeg developers
built with gcc 8 (Debian 8.3.0-6)
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
libavutil      56. 58.100 / 56. 58.100
libavcodec     58.101.100 / 58.101.100
libavformat    58. 51.101 / 58. 51.101
libavdevice    58. 11.101 / 58. 11.101
libavfilter     7. 87.100 /  7. 87.100
libswscale      5.  8.100 /  5.  8.100
libswresample   3.  8.100 /  3.  8.100
libpostproc    55.  8.100 / 55.  8.100

It's a Rails app (5.2.4.3), Ruby 2.5.3

[matthewmoss]

@AlbertMontolio Hey Albert, did you ever figure this out? I've been stuck on the same issue.

[matthewmoss]

Think I found a workaround if anyone else is stuck on this! By default, streamio-ffmpeg calls FFMPEG using the path /app/vendor/ffmpeg. For instance, a transcription request might result in the follow command:

/app/vendor/ffmpeg -y -i input.mp4 -r 60 output.mp4

The path /app/vendor/ffmpeg seems to be off-limits on Heroku so it throws a Permission Denied error. Instead, heroku-buildpack-ffmpeg-latest makes FFMPEG available using the plain old ffmpeg command. If streamio-ffmpeg issues the command using the ffmpeg name instead of the path, everything works. The above command would be changed to the following:

ffmpeg -y -i input.mp4 -r 60 output.mp4

Unfortunately, FFMPEG.ffmpeg_binary only allows you to specify a path to a valid binary, so FFMPEG.ffmpeg_binary = "ffmpeg" doesn't work by default. I had to create a fork that removes the valid path restriction so that you can set FFMPEG.ffmpeg_binary to ffmpeg.

I have kind of issue with [ffmpegthumbnailer]
Instead of the app/vendor/ffmpegthumbnailer I got in vendor/ffmpegthumbnailer

[Riveascore]

@matthewmoss, thank you infinitely for this!!