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• Rails 3 : How can I make Paperclip-FFMPEG work ?

  9 novembre 2011, par remino

  I have Rails 3.0.3 with these gems :

  • delayed_job 2.1.4
  • delayed_paperclip 0.7.1
  • paperclip 2.3.16
  • paperclip-ffmpeg 0.7.0

  (This combination is very specific. Some newer gems will not work with others.)

  Here's my Video model :

  class Video < Upload
  
    has_attached_file :file, :default_style => :view, :processors => [:ffmpeg],
  
      :url => '/system/:class/:attachment/:id/:style/:basename.:extension',
  
      :path => ':rails_root/public/system/:class/:attachment/:id/:style' \
  
        + '/:basename.:extension',
  
      :default_url => '/images/en/processing.png',
  
      :styles => {
  
        :mp4video => { :geometry => '520x390', :format => 'mp4',
  
          :convert_options => { :output => { :vcodec => 'libx264',
  
            :vpre => 'ipod640', :b => '250k', :bt => '50k',
  
            :acodec => 'libfaac', :ab => '56k', :ac => 2 } } },
  
        :oggvideo => { :geometry => '520x390', :format => 'ogg',
  
          :convert_options => { :output => { :vcodec => 'libtheora',
  
            :b => '250k', :bt => '50k', :acodec => 'libvorbis',
  
            :ab => '56k', :ac => 2 } } },
  
        :view => { :geometry => '520x390', :format => 'jpg', :time => 1 },
  
        :preview => { :geometry => '160x120', :format => 'jpg', :time => 1 }
  
      }
  
    validates_attachment_content_type :file, :content_type => VIDEOTYPES,
  
      :if => Proc.new { |upload| upload.file.file? }
  
    process_in_background :file
  
  end

  When creating a new Video object with attachment, the original is saved, but no conversion will be done. Even calling Video.last.file.reprocess! won't to a thing except returning true. (Not sure what "true" means in this case as it didn't work.)

  I tried hardcoding the path to ffmpeg in Paperclip::options[:command_path]. I even tried deleting the paperclip-ffmpeg.rb file and replacing it with a blank file. Really thinking I'd get an exception by doing the later, instead, I simply got "true" again.

  It feels like the paperclip-ffmpeg.rb is being loaded, because it is required by config/application.rb, but nothing is called in it when trying to generate a thumbnail or convert a video.

  Can anyone help me with this ? Thanks in advance !

• How to make videos .mp4 for a Phillips Media Player GO GEAR VIBE models ? [closed]

  14 avril 2023, par Ivan Rojas Calvo

  Here is the answer by steps (4/13/23) :

  


  


  1. First download and install the software WinFF here

     


  


  2. Check the specificacions of your media player, mine is the GoGearVibe SA2VBE08K/55 model

     


  


  3. Look for the video specification : mine says that the video format needs to match this specifications :

     


     Format = MJPEG (.mp4)

     


     Resolution = 128 x 128 píxeles

     


     Frames per second = 30 cps (fps)

     


     Bitrate = 512 kpbs

     


  


  4. Read this tutorial to create a preset in WinFF here

     


  


  5. Create a preset that turns ANY mp4 video you have into an MJPEG video with the properties shown above with this info :

     


     name : GoGearVibe55

     


     preset label : MJPEG GOGEAR

     


     Preset command line :

     


     -f mov -vf scale=128:128 -c:v mjpeg -b:v 512k -r 25 -c:a adpcm_ima_wav -b:a 192k -ar 22050 -ac 2


     


     output file : mp4

     


  


  6. Understand how to adapt the code to your necessities with this image
enter image description here

     


  


  


  Do not change what is mark in red, that's the resolution of the screen and the encoder of the video. You can change the value mark in blue, which means the bitrate, more bitrate the video will have more definition without changing the resolution. Tha value in green refers to the fps and the ones marked in yellow is the audio settings, don't worry about that, are good audio settings.

  


  Done. I did'n know how to create an article so I let you try this solution, good luck !

  


• correctly escaping text in drawtext filter

  6 novembre 2013, par mente

  According to documentation %{}:, should be escaped with slash. But when I escape % the text is not added. There's error message saying Stray % near ')'. But what does it mean and how I can fix it ? Command and output :

  $ /usr/bin/ffmpeg -y -i /home/www/255871.mov -af 'aresample=async=1:min_hard_comp=0.100000' -vf 'scale=480:trunc(ow/a/2)*2,transpose=1 [in];movie=watermarks/text-box440.mov,scale=320:55 [bg];[in][bg] overlay=x=20:y=main_h-80,drawtext=fontsize=20:fix_bounds=1:fontfile=Helvetica\\:Style=bold:fontcolor=0xe6b300:text=small kitten \%\):x=30:y=h-80+ascent/2:draw=gte(t\,0)\;lt(t\,5) [out]' -pix_fmt yuv420p -r 24.39 -map_metadata -1 -movflags +faststart -f mp4 -vcodec libx264 -b:v 800k -maxrate 1100k -bufsize 2M -bt 256k -profile:vbaseline -acodec libfdk_aac -ab 64k -ar 44100 -ac 1 /tmp/kitten.mp4
  
  ffmpeg version 1.2 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Mar 15 2013 18:40:14 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
  
    configuration: --enable-gpl --enable-libmp3lame --enable-libvo-aacenc --enable-libx264 --enable-version3 --enable-pthreads --enable-libfaac --enable-nonfree --enable-libfdk_a
  
  ac --enable-fontconfig --enable-libfreetype
  
    libavutil      52. 18.100 / 52. 18.100
  
    libavcodec     54. 92.100 / 54. 92.100
  
    libavformat    54. 63.104 / 54. 63.104
  
    libavdevice    54.  3.103 / 54.  3.103
  
    libavfilter     3. 42.103 /  3. 42.103
  
    libswscale      2.  2.100 /  2.  2.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  2.100 / 52.  2.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/www/255871.mov':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 0
  
      compatible_brands: qt
  
      creation_time   : 2012-07-17 07:42:35
  
      model           : iPhone 3GS
  
      model-rus       : iPhone 3GS
  
      encoder         : 4.2.1
  
      encoder-rus     : 4.2.1
  
      date            : 2012-07-17T10:42:35+0300
  
      date-rus        : 2012-07-17T10:42:35+0300
  
      make            : Apple
  
      make-rus        : Apple
  
    Duration: 00:00:09.38, start: 0.000000, bitrate: 790 kb/s
  
      Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 480x360, 720 kb/s, 29.97 fps, 29.97 tbr, 600 tbn, 1200 tbc
  
      Metadata:
  
        rotate          : 90
  
        creation_time   : 2012-07-17 07:42:35
  
        handler_name    : Core Media Data Handler
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s
  
      Metadata:
  
        creation_time   : 2012-07-17 07:42:35
  
        handler_name    : Core Media Data Handler
  
  [Parsed_drawtext_5 @ 0x2ae9b00] Using "/usr/share/fonts/default/Type1/n019003l.pfb"
  
  [libx264 @ 0x2ae7d40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x2ae7d40] profile Constrained Baseline, level 2.1
  
  [libx264 @ 0x2ae7d40] 264 - core 130 r2274 c832fe9 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 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=0 weightp=0 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=800 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=1100 vbv_bufsize=2000 nal_hrd=none ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to '/tmp/kitten.mp4':
  
    Metadata:
  
      encoder         : Lavf54.63.104
  
      Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 360x480, q=-1--1, 800 kb/s, 19512 tbn, 24.39 tbc
  
      Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, mono, s16, 64 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 -> libx264)
  
    Stream #0:1 -> #0:1 (aac -> libfdk_aac)
  
  Press [q] to stop, [?] for help
  
  [Parsed_drawtext_5 @ 0x2ae9b00] Stray % near ')'
  
      Last message repeated 201 times
  
  Stray % near ')'0.0 q=27.0 size=     480kB time=00:00:07.96 bitrate= 493.4kbits/s dup=0 drop=35
  
  [Parsed_drawtext_5 @ 0x2ae9b00] Stray % near ')'
  
      Last message repeated 77 times
  
  Starting second pass: moving header on top of the file
  
  frame=  231 fps=0.0 q=-1.0 Lsize=    1002kB time=00:00:09.47 bitrate= 866.6kbits/s dup=0 drop=50
  
  video:921kB audio:74kB subtitle:0 global headers:0kB muxing overhead 0.680957%
  
  [libx264 @ 0x2ae7d40] frame I:1     Avg QP:24.43  size: 13264
  
  [libx264 @ 0x2ae7d40] frame P:230   Avg QP:23.72  size:  4041
  
  [libx264 @ 0x2ae7d40] mb I  I16..4: 24.8%  0.0% 75.2%
  
  [libx264 @ 0x2ae7d40] mb P  I16..4:  2.3%  0.0%  4.8%  P16..4: 34.4% 28.8%  9.4%  0.0%  0.0%    skip:20.3%
  
  [libx264 @ 0x2ae7d40] coded y,uvDC,uvAC intra: 62.5% 54.2% 4.4% inter: 19.6% 20.3% 0.1%
  
  [libx264 @ 0x2ae7d40] i16 v,h,dc,p: 36% 29% 19% 16%
  
  [libx264 @ 0x2ae7d40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 21% 20%  6%  8%  7%  7%  6%  6%
  
  [libx264 @ 0x2ae7d40] i8c dc,h,v,p: 65% 15% 17%  3%
  
  [libx264 @ 0x2ae7d40] ref P L0: 93.4%  4.3%  2.3%
  
  [libx264 @ 0x2ae7d40] kb/s:796.32