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• building MobileVLC -> armc7 + ffmpeg issue

  28 septembre 2012, par Shamil

  I'm trying to build MobileVLC on OS X Lion, against iOS SDK 5.0. So far, no dice.

  Followed the given instructions, however, build stops and fails here :
  [info] Building contrib for iOS in '/Users/shamil/Documents/MobileVLC/ImportedSources/vlc/contrib-builddir-ios-i686-apple-darwin10

  Current log :
  ./buildMobileVLC.sh -s
  [info] Preparing build dirs
  [info] Building
  [info] Building vlc
  [info] Building libvlc for the iOS
  [info] Using i386 with SDK version 4.2
  [info] Building contrib for iOS in '/Users/shamil/Documents/MobileVLC/ImportedSources/vlc/contrib-builddir-ios-i686-apple-darwin10'

  The error is given as follows :

  make[1]: *** [.ffmpeg] Error 1
  
  make: *** [using-src] Error 2

  /ImportedSources/vlc/contrib-builddir-ios-arm-apple-darwin10/build-src/ffmpeg/config.log tells me :

  ld: warning: directory not found for option 'L/Users/shamil/Documents/MobileVLC/ImportedSources/vlc/contrib-ios-arm-apple-darwin10/lib'
  
  ld: warning: directory not found for option '-L/Users/shamil/Documents/MobileVLC/ImportedSources/vlc/contrib-ios-arm-apple-darwin10/lib'
  
  **ld: in /usr/lib/system/libcache.dylib, missing required architecture armv7 in file for architecture armv7**
  
  collect2: ld returned 1 exit status
  
  C compiler test failed.

  I've bolded the one which I think is causing it to fail. Now - how do I fix THIS error ?

• uninitialized constant Paperclip::Error with paperclip-ffmpeg

  7 mai 2014, par Kashiftufail

  I am using Paperclip , and paperclip-ffmpeg for processing uploads. Below is my code

  class Asset < ActiveRecord::Base

   belongs_to :profile  
  
   has_attached_file :photo, :styles => {
  
        :mobile => {:geometry => "400x300", :format => 'mp4', :streaming => true}
  
    }, :processors => [:ffmpeg]
  
  
  
  
  
   validates_attachment_content_type :photo, :content_type => ['image/jpeg', 'image/png',  'image/gif', 'application/msword', 'application/pdf', 'video/x-flv']

  end

  when i upload image or video file then it is working properly. But when i upload PDF or doc

  file, this error occurs.

         "uninitialized constant Paperclip::Error" 

  Any help ??

  Or How i can put if condition validation if upload file is PDF or Doc. Then i can skip this

  below code. Because this is cause of error when file type is PDF or Doc.

          ":styles => {
  
        :mobile => {:geometry => "400x300", :format => 'mp4', :streaming => true}
  
    }, :processors => [:ffmpeg]" 

  Thanks

• FFmpeg : merge 8 mono audio streams MOV file into one audio stream FLV file

  1er décembre 2015, par snucky

  I have a MOV file with eight mono audio streams, likely a 5.1 or 7.1 setup. I want to generate a for-web preview FLV file from it but in doing so lose the voices in the dialogue. FFmpeg is likely favoring an audio stream out of the eight that doesn’t have the voices. When I researched ways to merge the audio streams, in order to bring the voices back, I lose the ability to execute my ffmpeg command entirely. Here’s what I have at the moment (the introduction of the "-map 0" option rendered the command non-executable)

  /usr/local/bin/ffmpeg -i ../vmx_files/6711177.mov -map 0 -y -f flv -qmax 10
  
        -vf "scale=trunc(oh*a/2)*2:720" -ar 44100 -ab 64k assets/flv/6711177.flv
  
  
  
  
  
  ffmpeg version N-69160-g1013c15 Copyright (c) 2000-2015 the FFmpeg developers
  
    built on Jan 20 2015 09:41:10 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-11)
  
    configuration:
  
    libavutil      54. 17.100 / 54. 17.100
  
    libavcodec     56. 20.100 / 56. 20.100
  
    libavformat    56. 19.100 / 56. 19.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5.  8.100 /  5.  8.100
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '../vmx_files/6711177.mov':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 537199360
  
      compatible_brands: qt
  
      creation_time   : 2015-11-24 23:00:27
  
    Duration: 00:01:48.34, start: 0.000000, bitrate: 229443 kb/s
  
      Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le(bt709), 1920x1080, 220043 kb/s, SAR 1:1 DAR 16:9, 29.97 fps, 29.97 tbr, 2997 tbn, 2997 tbc (default)
  
      Metadata:
  
        creation_time   : 2015-11-24 23:00:27
  
        handler_name    : Apple Alias Data Handler
  
        encoder         : Apple ProRes 422 (HQ)
  
        timecode        : 00:59:50;00
  
      Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-11-24 23:00:27
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:2(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-11-24 23:00:27
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:3(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-11-24 23:00:27
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:4(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-11-24 23:00:27
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:5(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-11-24 23:00:27
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:6(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-11-24 23:00:27
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:7(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-11-24 23:00:27
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:8(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-11-24 23:00:28
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:9(eng): Data: none (tmcd / 0x64636D74)
  
      Metadata:
  
        rotate          : -0
  
        creation_time   : 2015-11-24 23:03:22
  
        handler_name    : Apple Alias Data Handler
  
        timecode        : 00:59:50;00
  
  Data stream encoding not supported yet (only streamcopy)