Recherche avancée

Sur d’autres sites (14998)

• FFmpeg video conversion wont play in my browser

  3 juin 2015, par Marc Rasmussen

  I am trying no matter what format of video my clients upload to convert them into three different formats :

   var videoExtensions = ['mp4', 'webm', 'ogg'];
  
  
  
      var ffmpeg = require('fluent-ffmpeg');
  
  videoExtensions.forEach(function (extension) {
  
      var proc = new ffmpeg({source: media.file.path, nolog: false})
  
          .withVideoCodec('libx264')
  
          .withVideoBitrate(800)
  
          .withAudioCodec('libvo_aacenc')
  
          .withAudioBitrate('128k')
  
          .withAudioChannels(2)
  
          .toFormat(extension)
  
          .saveToFile(media.targetDir + media.getName() + '.' + extension,
  
          function (retcode, error) {
  
              console.log('file has been converted succesfully');
  
          });
  
  });

  On my local machine I am able to open and play the videos no problem

  However as soon as I load them as resources into my browser it simply will not play.

  If I however instead of converting just move the file I have no problem opening the file in my browser however then I will not be able to get the file in all three formats.

  My question is am I doing something wrong in the above code or why is my browser "rejecting" the files so to speak ?

• Why is safari browser not able to play h.264 high10 with pixel format yuv420p10le video ?

  15 avril 2022, par Rajat Raghuwanshi

  I have read and found that Safari Supports HDR as well as H264 Codecs.
But When I generate HDR video using h.264 codecs using ffmpeg, the safari gives error in playing the video which chrome is easily able to play.
Video Error on Safari

  
I am able to play the video with pixel format yuv420p ( 8 bit ).
Is 10 bit video not supported with H264 in Safari ?

  


  I used FFMPEG.WASM to generate video with following properties :
  
-framerate 0.1 -pattern_type glob -i *.png -tag:v avc1 -c:v libx264
  
-profile:v high10 -crf 20
-sws_flags spline+accurate_rnd+full_chroma_int
  
-color_trc smpte2084 -color_primaries bt2020
-color_range pc -colorspace bt2020nc
  
-pix_fmt yuv420p10le -vf eq=brightness=0.12 out.mp4"

  


• ffmpeg what is the codec for play video in windows media player and web browser

  27 septembre 2016, par Swagat

  I have a requirement to convert video to mp4 which can play both windows medial player(latest version) and web browser(video tag)

  I got to run video in both windows media player or web browser, but two different video. i.e. in below scenario :

  For windows media play, I am using -codec:v mpeg4 and an example is :

  ffmpeg -i input.mp4  -filter_complex  -codec:v mpeg4 -flags:v +qscale -global_quality:v 0 -codec:a libmp3lame  output.mp4

  For Web Browser I need to run with -codec:v libx264 and an example is :

  ffmpeg -i input.mp4  -filter_complex  -codec:v libx264 -flags:v +qscale -global_quality:v 0 -codec:a copy output.mp4

  Both them are working perfectly in their respective player. Even I tried with combine both codec, its obvious, it is raising error.

  Any way to play in both place. Any way of direction will also help me here.

  Thanks in advance.