Les articles publiés sur le site

• FFMPEG .oma to .mp3 "Unsupported codec 5 !" with a big file

  27 mars 2017, par Ventura

  I'm trying to convert a .OMA file to .MP3 but no success with a specific file.

  If I try:

  ffmpeg -i audio1.oma -f mp3 output.mp3
  

  The file is converted successfully. The file audio1.oma is a 3 MB file.

  Full output:

  ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
    built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
    configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
    libavutil      55. 34.101 / 55. 34.101
    libavcodec     57. 64.101 / 57. 64.101
    libavformat    57. 56.101 / 57. 56.101
    libavdevice    57.  1.100 / 57.  1.100
    libavfilter     6. 65.100 /  6. 65.100
    libavresample   3.  1.  0 /  3.  1.  0
    libswscale      4.  2.100 /  4.  2.100
    libswresample   2.  3.100 /  2.  3.100
    libpostproc    54.  1.100 / 54.  1.100
  [oma @ 0x7f8fc4000000] Estimating duration from bitrate, this may be inaccurate
  Input #0, oma, from 'audio1.oma':
    Metadata:
      title           : Is This It
      artist          : The Strokes
      album           : Is This It
      genre           : Rock
      OMG_TRLDA       : 2001/01/01 00:00:00
      TLEN            : 153000
    Duration: 00:02:33.36, start: 0.000000, bitrate: 128 kb/s
      Stream #0:0: Audio: mp3 ([3][0][0][0] / 0x0003), 44100 Hz, stereo, s16p, 128 kb/s
  Output #0, mp3, to 'output.mp3':
    Metadata:
      TIT2            : Is This It
      TPE1            : The Strokes
      TALB            : Is This It
      TCON            : Rock
      OMG_TRLDA       : 2001/01/01 00:00:00
      TLEN            : 153000
      TSSE            : Lavf57.56.101
      Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, stereo, s16p
      Metadata:
        encoder         : Lavc57.64.101 libmp3lame
  Stream mapping:
    Stream #0:0 -> #0:0 (mp3 (native) -> mp3 (libmp3lame))
  Press [q] to stop, [?] for help
  size=    2397kB time=00:02:33.35 bitrate= 128.0kbits/s speed=37.2x    
  video:0kB audio:2397kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.016094%
  

  If I try the same with another .oma (53 MB) I'm getting the error:

  Unsupported codec 5! audio2.oma: Function not implemented

  Full output:

  ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
    built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
    configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
    libavutil      55. 34.101 / 55. 34.101
    libavcodec     57. 64.101 / 57. 64.101
    libavformat    57. 56.101 / 57. 56.101
    libavdevice    57.  1.100 / 57.  1.100
    libavfilter     6. 65.100 /  6. 65.100
    libavresample   3.  1.  0 /  3.  1.  0
    libswscale      4.  2.100 /  4.  2.100
    libswresample   2.  3.100 /  2.  3.100
    libpostproc    54.  1.100 / 54.  1.100
  [oma @ 0x7f8792000000] Unsupported codec 5!
  audio2.OMA: Function not implemented
  

  Both audios works fine when using the MP3 Player. The first audio which works is just a random song from my MP3 player to test. The second file was recorded in a music studio playing live with multiple channels.

  Anything I'm missing here?

• There are error about ffmpeg in python

  27 mars 2017, par WHOAMI

  from ffmpy import FFmpeg
  import ffmpy
  
  ff = FFmpeg(inputs={'screenrecord.mp4':None},
              outputs={'C:\\Users\pc\Desktop\CM\03.24\Demo\output.mp4':None})
  
  #ff.cmd
  ff.run()
  

  following is the error message.

  C:\Users\pc\AppData\Local\Programs\Python\Python36\python.exe C:/Users/pc/Desktop/CM/03.24/Demo/Demo.py
  Traceback (most recent call last):
    File "C:\Users\pc\AppData\Local\Programs\Python\Python36\lib\site-packages\ffmpy-0.2.2-py3.6.egg\ffmpy.py", line 95, in run
    File "C:\Users\pc\AppData\Local\Programs\Python\Python36\lib\subprocess.py", line 707, in __init__
      restore_signals, start_new_session)
    File "C:\Users\pc\AppData\Local\Programs\Python\Python36\lib\subprocess.py", line 990, in _execute_child
      startupinfo)
  FileNotFoundError: [WinError 2] 系统找不到指定的文件。
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "C:/Users/pc/Desktop/CM/03.24/Demo/Demo.py", line 8, in 
      ff.run()
    File "C:\Users\pc\AppData\Local\Programs\Python\Python36\lib\site-packages\ffmpy-0.2.2-py3.6.egg\ffmpy.py", line 99, in run
  ffmpy.FFExecutableNotFoundError: Executable 'ffmpeg' not found
  

  Process finished with exit code 1

• Rails 4.2.8 Using Paperclip With Resque

  27 mars 2017, par AntonioMarquis

  My application uploads training videos to a S3 bucket. I need the transcoding videos to be processed in the background so they don't tie up the application. I want to use Resque on my dev machine and Heroku. But my jobs continue to fail.

  Model

  has_attached_file :video
  
  process_in_background :video 
  

  Gems

  gem 'aws-sdk', '< 2.0'
  gem 'paperclip'
  gem 'paperclip-av-transcoder'
  gem "paperclip-ffmpeg"
  gem "ffmpeg"
  gem 'daemons'
  gem 'delayed_paperclip'
  gem 'nokogiri'#, '~> 1.5.9'
  gem 'rmagick'
  gem 'resque', "~> 1.22.0"
  

  Output from Failed Jobs

  Class ActiveJob::QueueAdapters::ResqueAdapter::JobWrapper
  
  Arguments {"job_class"=>"DelayedPaperclip::Jobs::ActiveJob", "job_id"=>"111e4f9d-942d-4613-b3cb-0e884581249f", "queue_name"=>"paperclip", "arguments"=>["Video", 30, "source"], "locale"=>"en"}
  
  Exception NoMethodError
  
  Error undefined method `call' for "result == false":String
  
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:165:in `block in halting'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:504:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:504:in `block in call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:504:in `each'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:504:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:92:in `__run_callbacks__'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:778:in `_run_source_post_process_callbacks'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:81:in `run_callbacks'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/paperclip-3.5.4/lib/paperclip/callbacks.rb:26:in `run_paperclip_callbacks'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/paperclip-3.5.4/lib/paperclip/attachment.rb:419:in `block in post_process'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:88:in `__run_callbacks__'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:778:in `_run_post_process_callbacks'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:81:in `run_callbacks'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/paperclip-3.5.4/lib/paperclip/callbacks.rb:26:in `run_paperclip_callbacks'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/paperclip-3.5.4/lib/paperclip/attachment.rb:418:in `post_process'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/paperclip-3.5.4/lib/paperclip/attachment.rb:112:in `assign'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/paperclip-3.5.4/lib/paperclip/attachment.rb:322:in `reprocess!'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/delayed_paperclip-2.10.0/lib/delayed_paperclip/attachment.rb:68:in `process_delayed!'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/delayed_paperclip-2.10.0/lib/delayed_paperclip.rb:36:in `process_job'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/delayed_paperclip-2.10.0/lib/delayed_paperclip/jobs/active_job.rb:10:in `perform'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/activejob-4.2.8/lib/active_job/execution.rb:32:in `block in perform_now'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:117:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:117:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:498:in `block (2 levels) in around'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:343:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:343:in `block (2 levels) in simple'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/i18n-0.8.1/lib/i18n.rb:257:in `with_locale'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/activejob-4.2.8/lib/active_job/translation.rb:7:in `block (2 levels) in '
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:441:in `instance_exec'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:441:in `block in make_lambda'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:342:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:342:in `block in simple'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `block in around'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:498:in `block (2 levels) in around'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:343:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:343:in `block (2 levels) in simple'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/activejob-4.2.8/lib/active_job/logging.rb:23:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/activejob-4.2.8/lib/active_job/logging.rb:23:in `block (4 levels) in '
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/notifications.rb:164:in `block in instrument'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/notifications.rb:164:in `instrument'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/activejob-4.2.8/lib/active_job/logging.rb:22:in `block (3 levels) in '
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/activejob-4.2.8/lib/active_job/logging.rb:43:in `block in tag_logger'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/tagged_logging.rb:68:in `block in tagged'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/tagged_logging.rb:26:in `tagged'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/tagged_logging.rb:68:in `tagged'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/activejob-4.2.8/lib/active_job/logging.rb:43:in `tag_logger'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/activejob-4.2.8/lib/active_job/logging.rb:19:in `block (2 levels) in '
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:441:in `instance_exec'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:441:in `block in make_lambda'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:342:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:342:in `block in simple'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `block in around'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:92:in `__run_callbacks__'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:778:in `_run_perform_callbacks'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551@global/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:81:in `run_callbacks'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/activejob-4.2.8/lib/active_job/execution.rb:31:in `perform_now'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/activejob-4.2.8/lib/active_job/execution.rb:21:in `execute'
  /Users/antoniomarquis/.rvm/gems/ruby-1.9.3-p551/gems/activejob-4.2.8/lib/active_job/queue_adapters/resque_adapter.rb:46:in `perform'
  Powered by Resque v1.22.0
  Connected to Redis namespace resque on redis://127.0.0.1:6379/0
  

• Paperclip geometry ignored

  27 mars 2017, par ACIDSTEALTH

  I have a model called Snapshot, which represents a user-recorded video. I want to take the input video file and scale it to fit within a 720x720 box (ImageMagick documentation). I then want to capture some screenshots of the video to represent it in my app. These sizes are specified accordingly in my model.

  I expect the output of this to be an original video with a maximum width of 720px (assuming it was recorded in landscape mode), a large JPG image with a maximum width of 540px, etc.

  When I attach the video file and save the model, the images and video file are processed but the result is not what I expected. The video file has a resolution of 960x720 and the images are all square (540x540, 360x360, etc).

  I'm not sure if I'm doing something wrong or if this is just a bug with Paperclip. Here is my code:

  class Snapshot < ApplicationRecord
      has_attached_file :video,
          styles: {
              original: { geometry: "720x720", format: 'mp4' },
              large: { geometry: "540x540", format: 'jpg' },
              medium: { geometry: "360x360", format: 'jpg' },
              thumb: { geometry: "180x180", format: 'jpg' }
          },
          default_url: "", processors: [:transcoder]
      validates_attachment_content_type :video, content_type: /\Avideo\/.*\Z/
      validates_attachment_size :video, less_than: 100.megabytes
  end
  

  I have also tried adjusting the geometry to 720x720>, 540x540>, etc. When I did this, the attachments' resolution was unchanged, which seems to go completely against my understanding of how ImageMagick geometry works. I have numerous other models with image-only attachments that do not suffer from this issue.

  Here is a snippet from my Gemfile.lock so you can see which versions I am running:

  delayed_paperclip (3.0.1)
    activejob (>= 4.2)
    paperclip (>= 3.3)
  paperclip (5.1.0)
    activemodel (>= 4.2.0)
    activesupport (>= 4.2.0)
    cocaine (~> 0.5.5)
    mime-types
    mimemagic (~> 0.3.0)
  paperclip-av-transcoder (0.6.4)
    av (~> 0.9.0)
    paperclip (>= 2.5.2)
  paperclip-optimizer (2.0.0)
    image_optim (~> 0.19)
    paperclip (>= 3.4)
  

  Update I retried this with a video recorded in portrait mode (iPhone 6 front-facing webcam) and the video file's output size was 720x720. The images were still square as before.

• ffmpeg encoding for HTML 5 - Primefaces/JSF

  27 mars 2017, par Mitsos

  I am trying to build a web app (using Primefaces) that streams real time video on an html page. The video is captured using an HDMI to IP encoder(TBS2603), that outputs the stream to HTTP. The video is show on the page using:

  BUT the video is not show on the page using tag. As I want to stream on mobile devices and I need to use stream. Therefore I have to transcode the stream using ffmpeg (not ffserver - as it will be deprecated on future releases), and publishing it on Tomcat on another context allowing listing.

  I am creating 3 streams on 3 files (ogg/mp4/webm)

  MP4

  ffmpeg -i http://ip:8080/hdmi -vcodec libx264 -b:v 8192k -f segment -segment_time 4 -segment_list_size 0 -segment_list test.m3u8 -segment_format mpegts stream%05d.ts
  

  OGG

  ffmpeg -i http://ip:8080/hdmi -acodec vorbis -vcodec libtheora test.ogg
  

  WEBM

  ffmpeg -i http://ip:8080/hdmi -vcodec libvpx -acodec libvorbis test.webm
  

  The streams are loaded on jsf:

  In this manner I get the output from the encoded files - how can I get the real time stream from the encoder?