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• Installing ffmpeg on Heroku with Go (Golang) app

  17 novembre 2015, par Kevin Cantwell

  I have a Go app that uses ffmpeg bindings that I’d like to deploy on Heroku. I am able to install ffmpeg successfully using ddollar’s multi buildpack in conjunction with shunjikonishi’s ffmpeg buildpack and kr’s go buildpack. However, no matter what I try, the app fails on the call to pkg-config with the following output :

  $ git push heroku master
  
  Counting objects: 22, done.
  
  Delta compression using up to 8 threads.
  
  Compressing objects: 100% (20/20), done.
  
  Writing objects: 100% (22/22), 2.32 KiB | 0 bytes/s, done.
  
  Total 22 (delta 9), reused 0 (delta 0)
  
  remote: Compressing source files... done.
  
  remote: Building source:
  
  remote:
  
  remote: -----> Fetching set buildpack https://github.com/ddollar/heroku-buildpack-multi... done
  
  remote: -----> Multipack app detected
  
  remote: =====> Downloading Buildpack: https://github.com/shunjikonishi/heroku-buildpack-ffmpeg
  
  remote: =====> Detected Framework: ffmpeg
  
  remote: -----> Install ffmpeg
  
  remote:        DOWNLOAD_URL =  http://flect.github.io/heroku-binaries/libs/ffmpeg.tar.gz
  
  remote:        exporting PATH and LIBRARY_PATH
  
  remote: =====> Downloading Buildpack: https://github.com/kr/heroku-buildpack-go.git
  
  remote: =====> Detected Framework: Go
  
  remote: -----> Checking Godeps/Godeps.json file.
  
  remote: -----> Installing go1.5... done
  
  remote: -----> Running: godep go install -tags heroku ./...
  
  remote: # pkg-config --cflags libavcodec libavformat libavutil libswscale
  
  remote: Package libavcodec was not found in the pkg-config search path.
  
  remote: Perhaps you should add the directory containing `libavcodec.pc'
  
  remote: to the PKG_CONFIG_PATH environment variable
  
  remote: No package 'libavcodec' found
  
  remote: Package libavformat was not found in the pkg-config search path.
  
  remote: Perhaps you should add the directory containing `libavformat.pc'
  
  remote: to the PKG_CONFIG_PATH environment variable
  
  remote: No package 'libavformat' found
  
  remote: Package libavutil was not found in the pkg-config search path.
  
  remote: Perhaps you should add the directory containing `libavutil.pc'
  
  remote: to the PKG_CONFIG_PATH environment variable
  
  remote: No package 'libavutil' found
  
  remote: Package libswscale was not found in the pkg-config search path.
  
  remote: Perhaps you should add the directory containing `libswscale.pc'
  
  remote: to the PKG_CONFIG_PATH environment variable
  
  remote: No package 'libswscale' found
  
  remote: pkg-config: exit status 1
  
  remote: godep: go exit status 2
  
  remote:
  
  remote:  !     Push rejected, failed to compile Multipack app
  
  remote:
  
  remote: Verifying deploy...
  
  remote:
  
  remote: ! Push rejected to myvideoapp.
  
  remote:
  
  To https://git.heroku.com/myvideoapp.git
  
   ! [remote rejected] master -> master (pre-receive hook declined)
  
  error: failed to push some refs to 'https://git.heroku.com/myvideoapp.git'

  The command that fails is pkg-config --cflags libavcodec libavformat libavutil libswscale. However, when I run that command in a bash console it outputs -I/app/vendor/ffmpeg/include, which is what I’d expect.

  I believe that when the Go buildpack builds, it loses track of the ffmpeg package configuration information somehow. These are my config vars for the app :

  $ heroku config -s
  
  CGO_CFLAGS=-I/app/vendor/ffmpeg/include
  
  PKG_CONFIG_PATH=vendor/ffmpeg/lib/pkgconfig

  My question is : How do I get past this error ? Clearly the answer is related to the PKG_CONFIG_PATH variable, but I’m super confused on this one.

• ffmpeg build from source fails in docker container ?

  24 mars 2016, par John Allard

  I’m trying to make some changes to the ffmpeg source code (yes, I’m a masochist), and to start I booted an Arch Linux docker container, installed the requirements, downloaded ffmpeg source code, and tried to compile, but I’m getting some extremely odd errors.

  compile command :

  ./configure --bindidr=~/ffmpeg_build --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree

  Output :

  ./configure:unset:3338: no such has table element: mktemp
  
  pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
  
  pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
  
  pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
  
  pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
  
  ... (24 times)
  
  pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
  
  pr: /tmp/ffconf.r547UgWy.m: No such file or directory.
  
  ./configure:53378: parse error near '}'
  
  ==> ERROR" A failure occured in build()
  
      Aborting...
  
  The build failed.

  This doesn’t seem to be a problem with ffmpeg, more a problem with the container. If I check find /tmp -name ffconf\* I see that the files do exist and they contain

  extern int getrusage();
  
  int main(void){ getrusage(); }

  what in the hell is going on ? hash tabled ? mktemp not working ? files not being found ?

  edit-

  here is what is on the line numbers in the files that give the errors

  3338:configure - unset -f mktemp
  
  5338:configure - check_builtin gmtime_r time.g "time_t * time; strict tm*; gmtime_r(time, tm)"

  edit2 - Here’s the dockerfile (cloned from here https://hub.docker.com/r/greyltc/archlinux/ /dockerfile/)

  # Arch Linux baseline docker container
  
  # Generated on Sat Mar 19 14:26:28 GMT 2016 using code in this GitHub repo:
  
  # https://github.com/greyltc/docker-archlinux
  
  FROM scratch
  
  MAINTAINER Grey Christoforo <grey@christoforo.net>
  
  
  
  # copy in super minimal root filesystem archive
  
  ADD archlinux.tar.xz /
  
  
  
  # perform initial container setup tasks
  
  RUN setup-arch-docker-container
  
  
  
  # this allows the system profile to be sourced at every shell
  
  ENV ENV /etc/profile

• Video Failed to transcode with FFmpeg with Rails app in my localhost

  25 avril 2017, par Takor

  I ve tried to upload videos using Carrierwave-video & FFmpeg. I’ve installed FFmpeg and there is no problem with installation. I have made configurations from ’ http://blog.41studio.com/upload-videos-using-carrierwave-ffmpeg/ ’ .But when I tried to upload video (.mov file), I have an error.

  Error

   Video Failed to transcode with FFmpeg. Check ffmpeg install and verify video is not corrupt or cut short. Original error: Failed encoding.Errors: encoded file is invalid. Full output: ffmpeg version 2.8.3 Copyright (c) 2000-2015 the FFmpeg developers built with Apple LLVM version 7.0.0 (clang-700.1.76) configuration: --prefix=/usr/local/Cellar/ffmpeg/2.8.3 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libfaac --enable-nonfree --enable-vda libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100 libavformat 56. 40.101 / 56. 40.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 40.101 / 5. 40.101 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 libpostproc 53. 3.100 / 53. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/tanerkoroglu/Desktop/Wishpere2/public/uploads/tmp/1449435556-7186-2107/IMG_1756.MOV': Metadata: major_brand : qt minor_version : 0 compatible_brands: qt creation_time : 2015-10-17 12:19:27 Duration: 00:01:04.24, start: 0.000000, bitrate: 17176 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 17082 kb/s, 29.98 fps, 29.97 tbr, 600 tbn, 1200 tbc (default) Metadata: creation_time : 2015-10-17 12:19:27 handler_name : Core Media Data Handler encoder : H.264 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 85 kb/s (default) Metadata: creation_time : 2015-10-17 12:19:27 handler_name : Core Media Data Handler Stream #0:2(und): Data: none (mebx / 0x7862656D), 0 kb/s (default) Metadata: creation_time : 2015-10-17 12:19:27 handler_name : Core Media Data Handler Stream #0:3(und): Data: none (mebx / 0x7862656D), 0 kb/s (default) Metadata: creation_time : 2015-10-17 12:19:27 handler_name : Core Media Data Handler Please use -q:a or -q:v, -qscale is ambiguous [Parsed_movie_0 @ 0x7feb6bf00100] Failed to avformat_open_input '/Users/tanerkoroglu/Desktop/Wishpere2/app/assets/images/logo.png' [AVFilterGraph @ 0x7feb6bc09240] Error initializing filter 'movie' with args '/Users/tanerkoroglu/Desktop/Wishpere2/app/assets/images/logo.png' Error opening filters! 

  video_uploader.rb

  class VideoUploader < CarrierWave::Uploader::Base  
  
      include CarrierWave::Video
  
      process :encode
  
       def encode
  
         encode_video(:mp4, watermark: {path: File.join(Rails.root, "app/assets/images/logo.png")})
  
       end
  
  
  
     version :mp4 do
  
       def full_filename(for_file)
  
          super.chomp(File.extname(super)) + '.mp4'
  
       end
  
     end
  
   end 

  Gemfile

   gem 'carrierwave',             '0.10.0'
  
   gem 'carrierwave-video' 
  
   gem 'streamio-ffmpeg'