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• ffmpeg crashes in electron on mac apple store ; no suitable image found file system sandbox blocked open() of 'libass'

  20 février 2021, par Martin

  I am trying to release an electron app on the Mac Apple Store (mas), my electron app uses ffmpeg to render videos. In order to release my app on the mac apple store, It needs to be sandboxed, and by default ffmpeg makes calls to external libraries so I need to statically build ffmpeg and package it with my app. I have successfully built my app, submitted it to the app store, had it approved, and downloaded/used it but my ffmpeg fails with this errir :

  


  Uncaught (in promise) Error: Command was killed with SIGABRT (Aborted): /Users/martinbarker/Documents/projects/digify-new/dist/mas/Digify.app/Contents/Resources/ffmpeg -i /Users/martinbarker/Downloads/Steve Leach With The Crystal Grass Orchestra – Ocean Potion/9. Get Out In The Sun.flac -i /Users/martinbarker/Downloads/Steve Leach With The Crystal Grass Orchestra – Ocean Potion/10. Golden Hues.flac -y -filter_complex concat=n=2:v=0:a=1 -c:a libmp3lame -b:a 320k /Users/martinbarker/Downloads/Steve Leach With The Crystal Grass Orchestra – Ocean Potion/output-261020.mp3
dyld: Library not loaded: /usr/local/opt/libass/lib/libass.9.dylib
  Referenced from: /Users/martinbarker/Documents/projects/digify-new/dist/mas/Digify.app/Contents/Resources/ffmpeg
  Reason: no suitable image found.  Did find:
    file system sandbox blocked open() of '/usr/local/opt/libass/lib/libass.9.dylib'
    /usr/local/opt/libass/lib/libass.9.dylib: stat() failed with errno=1
    file system sandbox blocked open() of '/usr/local/lib/libass.9.dylib'
    file system sandbox blocked open() of '/usr/local/Cellar/libass/0.15.0/lib/libass.9.dylib'
    at makeError (/Users/martinbarker/…eca/lib/error.js:59)
    at handlePromise (/Users/martinbarker/…/execa/index.js:114)
    at async file:/Users/ma…js/newindex.js:1151


  


  I think this line is important ; file system sandbox blocked open() of '/usr/local/opt/libass/lib/libass.9.dylib' but I'm not sure what I should change with my static ffmpeg build so that it works in production and so that I can avoid the above error.

  


  My code is available on the branch mas-attempt-after-redesign here : https://github.com/MartinBarker/digify/tree/mas-attempt-after-redesign

  


  Inside my package.json I have the command download-ffmpeg which clones the ffmpeg repo, runs a configure command with some flags, and then builds ffmpeg into a folder called 'ffmpeg-mac', this folder gets packaged with the app for the mac apple store build.

  


  git clone https://git.ffmpeg.org/ffmpeg.git ffmpeg-mac && cd ffmpeg-mac && ./configure pkg_config='pkg-config --static' --pkg-config-flags='--static' --libdir=/usr/local/lib --extra-version=ntd_20150128 --disable-shared --disable-lzma --enable-gpl --enable-pthreads --enable-nonfree --enable-libass --enable-libfdk-aac  --enable-libmp3lame  --enable-libx264 --enable-static --enable-filters --enable-runtime-cpudetect && make && cd ..


  


  You can see in the above ffmpeg command the flag --enable-libass, but even though I have that flag included, after I build and sign my mac apple store build by running sudo rm -rf dist/mas/ && npm run build-mas && sh mas-sign-script.sh, the production build (once approved) fails with the above included error.

  


• How to add MOV file header to raw data written file with ffmpeg ?

  10 janvier 2018, par gstream79

  I am going to record H264 encoded video stream data in iOS using swift.
  I am not familiar with video codec formats so don’t know how to do this. But I’ve tried to write the H264 raw video data to the file sequently and see its file Info. I am surprised that it has almost video file info (compared with standard mp4, MOV file). The only missing info is video duration, file size, overall bit rate, encoded data, etc. So I am just wondering if video can play if I add the MOV file header to this file manually. Spent few hours to googling how to add MOV file header with ffmpeg but stacked. Any help would be appreciated. Thanks

• I want the mp4 file shooting date to be the xml file name

  21 novembre 2019, par re6

  In Windows 10 environment, I would like to change the name of both “file with extension mp4” and “file with extension xml” to the shooting date of mp4 file.

  C0001.MP4
  
  C0001M01.XML
  
  C0002.MP4
  
  C0002M01.XML

  Specifically, I want to change the file name as follows.

  2019-10-23_13-10-32.MP4
  
  2019-10-23_13-10-32.XML
  
  2019-10-23_13-10-49.MP4
  
  2019-10-23_13-10-49.XML

  ---

  I tried to think that using the ext option would give me the expected result, but I didn’t get the expected result.

  First time

  C:\Users\user>exiftool "-FileNamehoge/C0001M01.XML
  
  Warning: No writable tags set from C:/hoge/C0001M01.XML
  
  Warning: [minor] Error 3 placing ::NonRealTimeMetaAudioFormatAudioRecPortTrackDst in structure or list - C:/hoge/C0002M01.XML
  
  Warning: No writable tags set from C:/hoge/C0002M01.XML
  
      1 directories scanned
  
      0 image files updated
  
      2 image files unchanged

  Second time

  C:\Users\user>exiftool "-FileNamehoge/C0001.MP4
  
  Warning: [minor] Error 3 placing ::NonRealTimeMetaLtcChangeTableLtcChangeStatus in structure or list - C:/hoge/C0001M01.XML
  
  Warning: No writable tags set from C:/hoge/C0001M01.XML
  
  Warning: [minor] The ExtractEmbedded option may find more tags in the movie data - C:/hoge/C0002.MP4
  
  Warning: [minor] Error 3 placing ::NonRealTimeMetaAudioFormatAudioRecPortPort in structure or list - C:/hoge/C0002M01.XML
  
  Warning: No writable tags set from C:/hoge/C0002M01.XML
  
      1 directories scanned
  
      2 image files updated
  
      2 image files unchanged