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• Processing files and then re-uploading with fog and carrierwave fails on production

  2 mars 2015, par Laurie

  So I’m trying to get use carrierwave and fog to upload a file to my server, processing that file using ffmpeg to cut it into multiple small files, then upload those to s3.

  This works locally (no fog, just file storage), but breaks on production with this error :

  NoMethodError: undefined method 'to_file' for #CarrierWave::Storage::Fog::File:0x0000000639a458>

  And this trace :

  /var/deploy/webapp/web_head/shared/bundle/ruby/2.2.0/gems/carrierwave-0.10.0/lib/carrierwave/storage/fog.rb 259:in `store'
  
  …gems/carrierwave-0.10.0/lib/carrierwave/storage/fog.rb:  80:in `store!'
  
  …s/carrierwave-0.10.0/lib/carrierwave/uploader/store.rb:  59:in `block in store!'
  
  …rrierwave-0.10.0/lib/carrierwave/uploader/callbacks.rb:  17:in `with_callbacks'
  
  …s/carrierwave-0.10.0/lib/carrierwave/uploader/store.rb:  58:in `store!'
  
  …2.2.0/gems/carrierwave-0.10.0/lib/carrierwave/mount.rb: 375:in `store!'
  
  …2.2.0/gems/carrierwave-0.10.0/lib/carrierwave/mount.rb: 207:in `store_audio!'
  
  …/20150227144932/app/controllers/podcasts_controller.rb:  60:in `update'
  
  …2.0/gems/actionview-4.2.0/lib/action_view/rendering.rb:  30:in `process'
  
  …_language-2.0.5/lib/http_accept_language/middleware.rb:  14:in `call'
  
  …red/bundle/ruby/2.2.0/gems/rack-1.6.0/lib/rack/etag.rb:  24:in `call'
  
  …/ruby/2.2.0/gems/rack-1.6.0/lib/rack/conditionalget.rb:  38:in `call'
  
  …red/bundle/ruby/2.2.0/gems/rack-1.6.0/lib/rack/head.rb:  13:in `call'
  
  …/2.2.0/gems/rack-1.6.0/lib/rack/session/abstract/id.rb: 225:in `context'
  
  …/2.2.0/gems/rack-1.6.0/lib/rack/session/abstract/id.rb: 220:in `call'

  So, I have two uploaders. The uploader for the small chopped up audio files just sets the storage to fog, that’s it.

  After uploading the big audio file I run this processing function in the uploader (though the error doesn’t seem to come from here) :

  def split
  
    directory = File.dirname(current_path)
  
    tmpfile = File.join(directory,'tmpfile.mp3')
  
    File.rename(current_path,tmpfile)
  
    File.chmod(0644,tmpfile)
  
  
  
    sound = FFMPEG::Movie.new(tmpfile)
  
    @model.length = Mp3Info.open(tmpfile).length.round
  
  
  
  
  
    i=0
  
    number_of_lines= @model.ordered_lines.length
  
    lines = @model.ordered_lines
  
    while icode>

  Any ideas ?

• FFMPEG unwanted rotation

  5 mars 2015, par Ben

  When I add a watermark image with a landscape orientation to a video that has a portrait orientation the video automatically rotates to landscape. How do I prevent this ? Also, the audio file isn’t being merged into the output. How can I include the audio.mp3 to be the sole audio track ?

  ffmpeg -i 1425500438.MOV -i hashtag.png -itsoffset 00:00:07 -i audio.mp3  -filter_complex "[0:v]curves=preset=vintage[a];[a][1:v]overlay=10:10[out]"  -vcodec libx264 -pix_fmt yuv420p -ss 0:0:07 -t 14 -map "[out]" -y processed.mov

  EDIT****

  ffmpeg version 2.1.4 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Mar 19 2014 12:48:02 with Apple LLVM version 5.1 (clang-503.0.38) (based on LLVM 3.4svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/2.1.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1/include/openjpeg-1.5 '
  
    libavutil      52. 48.101 / 52. 48.101
  
    libavcodec     55. 39.101 / 55. 39.101
  
    libavformat    55. 19.104 / 55. 19.104
  
    libavdevice    55.  5.100 / 55.  5.100
  
    libavfilter     3. 90.100 /  3. 90.100
  
    libavresample   1.  1.  0 /  1.  1.  0
  
    libswscale      2.  5.101 /  2.  5.101
  
    libswresample   0. 17.104 /  0. 17.104
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1425500438.MOV':
  
    Metadata:
  
      major_brand     : qt  
  
      minor_version   : 0
  
      compatible_brands: qt  
  
      creation_time   : 2015-03-04 20:20:14
  
      encoder         : 8.1.2
  
      encoder-eng     : 8.1.2
  
      date            : 2015-03-04T14:20:14-0600
  
      date-eng        : 2015-03-04T14:20:14-0600
  
      model           : iPhone 6
  
      model-eng       : iPhone 6
  
      make            : Apple
  
      make-eng        : Apple
  
    Duration: 00:00:10.56, start: 0.000000, bitrate: 703 kb/s
  
      Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 480x360, 696 kb/s, 30.02 fps, 30.08 tbr, 600 tbn, 1200 tbc (default)
  
      Metadata:
  
        rotate          : 90
  
        creation_time   : 2015-03-04 20:20:14
  
        handler_name    : Core Media Data Handler
  
  Input #1, image2, from 'hashtag.png':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  
      Stream #1:0: Video: png, rgba, 131x29, 25 tbr, 25 tbn, 25 tbc
  
  Input #2, mp3, from 'audio.mp3':
  
    Metadata:
  
      encoder         : Lavf55.19.104
  
    Duration: 00:00:10.44, start: 0.000000, bitrate: 128 kb/s
  
      Stream #2:0: Audio: mp3, 16000 Hz, stereo, s16p, 128 kb/s
  
  [libx264 @ 0x7f9894017200] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX AVX2 FMA3 BMI1 BMI2
  
  [libx264 @ 0x7f9894017200] profile High, level 3.0
  
  [libx264 @ 0x7f9894017200] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mov, to 'processed.mov':
  
    Metadata:
  
      major_brand     : qt  
  
      minor_version   : 0
  
      compatible_brands: qt  
  
      make-eng        : Apple
  
      make            : Apple
  
      encoder-eng     : 8.1.2
  
      date            : 2015-03-04T14:20:14-0600
  
      date-eng        : 2015-03-04T14:20:14-0600
  
      model           : iPhone 6
  
      model-eng       : iPhone 6
  
      encoder         : Lavf55.19.104
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 480x360, q=-1--1, 11552 tbn, 30.08 tbc (default)
  
  Stream mapping:
  
    Stream #0:0 (h264) -> curves
  
    Stream #1:0 (png) -> overlay:overlay
  
    overlay -> Stream #0:0 (libx264)
  
  Press [q] to stop, [?] for help
  
  frame=  422 fps=413 q=-1.0 Lsize=     361kB time=00:00:13.96 bitrate= 211.9kbits/s dup=303 drop=0    
  
  video:356kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.574185%
  
  [libx264 @ 0x7f9894017200] frame I:2     Avg QP:20.09  size: 19764
  
  [libx264 @ 0x7f9894017200] frame P:134   Avg QP:22.29  size:  2248
  
  [libx264 @ 0x7f9894017200] frame B:286   Avg QP:28.02  size:    79
  
  [libx264 @ 0x7f9894017200] consecutive B-frames:  9.2%  0.0%  3.6% 87.2%
  
  [libx264 @ 0x7f9894017200] mb I  I16..4:  6.6% 45.0% 48.4%
  
  [libx264 @ 0x7f9894017200] mb P  I16..4:  1.8%  2.4%  0.7%  P16..4: 40.8% 13.6%  4.5%  0.0%  0.0%    skip:36.1%
  
  [libx264 @ 0x7f9894017200] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 10.9%  0.1%  0.0%  direct: 0.0%  skip:89.0%  L0:56.5% L1:42.3% BI: 1.2%
  
  [libx264 @ 0x7f9894017200] 8x8 transform intra:47.6% inter:61.5%
  
  [libx264 @ 0x7f9894017200] coded y,uvDC,uvAC intra: 51.3% 81.4% 36.7% inter: 5.6% 8.5% 0.5%
  
  [libx264 @ 0x7f9894017200] i16 v,h,dc,p: 21% 27% 12% 40%
  
  [libx264 @ 0x7f9894017200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 27% 19%  5%  4%  4%  7%  5%  6%
  
  [libx264 @ 0x7f9894017200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 22% 12%  4%  5%  5%  6%  4%  6%
  
  [libx264 @ 0x7f9894017200] i8c dc,h,v,p: 40% 28% 22% 10%
  
  [libx264 @ 0x7f9894017200] Weighted P-Frames: Y:16.4% UV:10.4%
  
  [libx264 @ 0x7f9894017200] ref P L0: 73.7% 12.2% 11.7%  2.3%  0.2%
  
  [libx264 @ 0x7f9894017200] ref B L0: 93.5%  5.8%  0.7%
  
  [libx264 @ 0x7f9894017200] ref B L1: 97.2%  2.8%
  
  [libx264 @ 0x7f9894017200] kb/s:207.25

• Error with IO.popen and ffmepg

  6 mars 2015, par Florian Dano Clement

  I received files in mp3 (2 minutes/files) I want to concatenate together and create a bigger file. So I created my model a function to do this using ffmpeg and IO.popen

  FileUtils.mkdir_p "#{Rails.root}/tmp/files"
  
  imported_dir = "#{Rails.root}/tmp/files/#{SecureRandom.uuid}"
  
  links.each_with_index do |link, index|
  
    file_path = "#{imported_dir}_#{index}#{File.extname(link)}"
  
    File.open(file_path, 'wb') do |file|
  
      file.write open(link).read
  
    end
  
    concat_list << "file '#{file_path}'\n"
  
  end
  
  File.open("#{imported_dir}.txt", 'w'){ |f| f.write(concat_list)}
  
  io = IO.popen("#{Rails.root}/lib/ffmpeg/ffmpeg -f concat -i #{imported_dir}.txt -c copy #{imported_dir}.mp3").readlines
  
  if sound = Sound.create(user_id: user.id, file: File.open("#{imported_dir}.mp3"), lang: lang, title: title)
  
    audio = FFMPEG::Movie.new("#{imported_dir}.mp3")
  
    if !audio.valid?
  
      puts "//_!_\\\\ Failed reading with ffmpeg (#{sound.id})#{sound.title} //_!_\\\\"
  
      return false
  
    end
  
  end 

  the problem is that my .txt file containing the file path

  file '/home/test/apps/example/releases/20150305224026/tmp/files/4dbe9707-cfef-467b-ab2c-a5e1e1165953_0.mp3'

  created files as well but the final file is not created and i got the error message :

  No such file or directory @ rb_sysopen - /home/test/apps/example/releases/20150305224026/tmp/files/4dbe9707-cfef-467b-ab2c-a5e1e1165953.mp3

  If anyone could help me