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• Problems with paperclip and ffmpeg

  15 avril 2015, par proeo pre

  I have a problem with update a video for web cam.

  my model :

  has_attached_file :video_presentacion, :styles => { 
  
      :original => { :geometry => "1280x720", :format => 'mp4',:convert_options => { :output => { :vcodec => 'libx264'}} },
  
      :thumb => { :geometry => "350x350#", :format => 'png', :time => 12}
  
  }, :processors => [:ffmpeg]
  
  
  
  
  
  
  
  validates_attachment_content_type :video_presentacion, :content_type => [ 'application/x-mp4','video/mp4',
  
                                                                        'video/mpeg',
  
                                                                        'video/quicktime',
  
                                                                        'video/x-la-asf',
  
                                                                        'video/x-ms-asf',
  
                                                                        'video/x-msvideo',
  
                                                                        'video/x-sgi-movie',
  
                                                                        'video/x-flv',
  
                                                                        'flv-application/octet-stream',
  
                                                                        'video/3gpp',
  
                                                                        'video/3gpp2',
  
                                                                        'video/3gpp-tt',
  
                                                                        'video/BMPEG',
  
                                                                        'video/BT656',
  
                                                                        'video/CelB',
  
                                                                        'video/DV',
  
                                                                        'video/H261',
  
                                                                        'video/H263',
  
                                                                        'video/H263-1998',
  
                                                                        'video/H263-2000',
  
                                                                        'video/H264',
  
                                                                        'video/JPEG',
  
                                                                        'video/MJ2',
  
                                                                        'video/MP1S',
  
                                                                        'video/MP2P',
  
                                                                        'video/MP2T',
  
                                                                        'video/mp4',
  
                                                                        'video/MP4V-ES',
  
                                                                        'video/MPV',
  
                                                                        'video/mpeg4',
  
                                                                        'video/mpeg4-generic',
  
                                                                        'video/nv',
  
                                                                        'video/parityfec',
  
                                                                        'video/pointer',
  
                                                                        'video/raw',
  
                                                                        'video/rtx']

  MY file name have WIN_20150415_103337.MP4

  file have codec h.264
  sonido have codec MPEG-4 AAC

  When I upload in development mode on my laptop, it work fines. When I update on test or production don’t work and log archive...

  [paperclip] An error was received while processing: #tmp/3f143e8fbebaf46e7103d8153e06f17920150415-11490-1buc2jr.MP4' -vcodec libx264 -s 1280x720 -acodec aac -strict experimental -y '/tmp/3f143e8fbebaf46e7103d8153e06f17920150415-11490-1buc2jr20150415-11490-1ww6qqc.mp4'' returned 1. Expected 0

  Here is the command output :

  [paperclip] [ffmpeg] ffprobe "/tmp/3f143e8fbebaf46e7103d8153e06f17920150415-11490-1buc2jr.MP4" 2>&1
  
  
  
  [paperclip] [ffmpeg] Command Success
  
  
  
  
  
  [paperclip] [ffmpeg] Making...
  
  [paperclip] [ffmpeg] Building Destination File: '3f143e8fbebaf46e7103d8153e06f17920150415-11490-1buc2jr' + 'png'
  
  
  
  [paperclip] [ffmpeg] Destination File Built
  
  [paperclip] [ffmpeg] Adding Geometry
  
  [paperclip] [ffmpeg] Extracting Target Dimensions
  
  [paperclip] [ffmpeg] Target Size is Available
  
  [paperclip] [ffmpeg] Keeping Aspect Ratio
  
  [paperclip] [ffmpeg] Pad Only
  
  [paperclip] [ffmpeg] Convert Options: 
  
  [paperclip] [ffmpeg] Adding Format
  
  [paperclip] [ffmpeg] Adding Source
  
  [paperclip] [ffmpeg] Building Parameters
  
  [paperclip] [ffmpeg] -ss 12 -i :source -vf scale=350:-1,pad=350:350:0:77.0:black -vframes 1 -f image2 -y :dest
  
  Command :: PATH=/usr/local/bin/:$PATH; ffmpeg -ss 12 -i '/tmp/3f143e8fbebaf46e7103d8153e06f17920150415-11490-1buc2jr.MP4' -vf scale=350:-1,pad=350:350:0:77.0:black -vframes 1 -f image2 -y '/tmp/3f143e8fbebaf46e7103d8153e06f17920150415-11490-1buc2jr20150415-11490-txzcol.png'
  
  Command :: PATH=/usr/local/bin/:$PATH; file -b --mime '/tmp/3f143e8fbebaf46e7103d8153e06f17920150415-11490-1buc2jr20150415-11490-txzcol.png'
  
  
  
   Command :: PATH=/usr/local/bin/:$PATH; file -b --mime '/tmp/3f143e8fbebaf46e7103d8153e06f17920150415-11490-1kbatzu.MP4'
  
  [1m[35m (0.3ms)[0m  ROLLBACK

• Why are v0, v1, and v2 of ffmpeg still under active development ? What happened to ppa:jon-severinsson/ffmpeg ?

  12 avril 2015, par cxrodgers

  I know about the long history of ffmpeg and libav. Personally, I preferred to use Jon Severinsson’s PPA, as suggested in many answers here on stackoverflow or askubuntu. However, recently this PPA seems to have gone down recently (this page, which is the link everyone always gives, is dead). I don’t see if he put up a newer version, although I admit I find launchpad hard to navigate. Did it get replaced with this one from Doug McMahon or this one from Sam Rog ?

  Ok, so maybe I need to download it myself. I visit the releases page for ffmpeg, and there seems to be simultaneous development of releases from v2 (2.6.2), v1 (1.2.12, from February), and v0 (0.10.16, from March of this year). 0.10 isn’t even the newest of the v0 series, and yet it seems to be the most recently updated of that series, and (coincidentally ?) also the version that I most recently got from the PPA. Admittedly this was on a slightly older distribution (Linux Mint 16).

  ffmpeg -version
  
  ffmpeg version 0.10.12-7:0.10.12-1~saucy1

  So, which version should I download, now that the PPA is gone ? Does it depend on the distribution I’m using ?

• ffmpeg transcoding example not working on android

  10 mars 2015, par Yogesh Kulkarni

  I am trying to run transcoding example of ffmpeg from here and from here on android, but getting following error

  03-10 16:27:56.903: E/TRANSCODING(8616): Cannot open video encoder for stream #0

  I am getting this error when I try to initialize AVCodecContext* for output file ret = avcodec_open2(enc_ctx, codec, NULL); in method static int open_input_file(const char *filename)

  I have compiled ffmpeg for android and included in my android project and I am calling this transcoding.c from jni.

  I tried this code on many video files with different encoding, but no luck. I have also checked that the given encoder/decoder is available in android device or not.

  Anyone know why I am getting this error ?

  Thanks.