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• ffmpeg throws conversion error, but only if the triggering web request is made from safari ?

  22 novembre 2022, par Kyoshiro Kokujou Obscuritas

  I'm using ffmpeg to do an on-the-fly conversion of audio files to ensure high compatibility. i'm converting them to OGG. and all of this is done by a .NET 6 REST service.
This service is then accessed by a javascript Frontend.
Now the problem. The exact same request runs through without any problems on Windows + Firefox, but it does not on Safari. In Safari it says something about "unknownConversion failed"

  


  it's the same file, it's the same name, and to make sure there are no weird invisible characters i used the Microsoft File API to convert it to a proper file path.

  


  code looks like this

  


  var ffmpeg = new Process();
        var startInfo = new ProcessStartInfo("D:\\Programme\\ffmpeg\\bin\\ffmpeg.exe",
            $"-i \"{path.FullName}\" -c:a libopus -f ogg -")
        {
            RedirectStandardError = true,
            RedirectStandardOutput = true,
            RedirectStandardInput = true,
            UseShellExecute = false,
            CreateNoWindow = true
        };
        ffmpeg.EnableRaisingEvents = true;
        ffmpeg.StartInfo = startInfo;
        ffmpeg.ErrorDataReceived += OnErrorDataReceived;
        ffmpeg.Exited += OnFinished;

        ffmpeg.Start();
        ffmpeg.BeginErrorReadLine();

        return File(new BufferedStream(ffmpeg.StandardOutput.BaseStream), "audio/ogg");


  


  Complete Logs : https://pastebin.com/tTUcsjuT

  


• dashenc : allow assigning all streams of a media type to an AdaptationSet

  29 janvier 2017, par Peter Große

  dashenc : allow assigning all streams of a media type to an AdaptationSet
  Using the characters "v" or "a" instead of stream index numbers for assigning
  
  streams in the adaption_set option, all streams matching that given type will
  
  be added to the AdaptationSet.
  Signed-off-by : Peter Große <pegro@friiks.de>
  
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] libavformat/dashenc.c

• ffmpeg not working with filenames that have whitespace

  18 mai 2021, par cmw

  I'm using FFMPEG to measure the duration of videos stored in an Amazon S3 Bucket.

  


  I've read the FFMPEG docs, and they explicitly state that all whitespace and special characters need to be escaped, in order for FFMPEG to handle them properly :

  


  See docs 2.1 and 2.1.1 : https://ffmpeg.org/ffmpeg-utils.html

  


  However, when dealing with files whose filenames contain whitespace, ffmpeg fails to render a result.

  


  I've tried the following, with no success

  


  ffmpeg -i "http://s3.mybucketname.com/videos/my\ video\ file.mov" 2>&1 | grep Duration | awk '{print $2}' | tr -d
ffmpeg -i "http://s3.mybucketname.com/videos/my video file.mov" 2>&1 | grep Duration | awk '{print $2}' | tr -d
ffmpeg -i "http://s3.mybucketname.com/videos/my'\' video'\' file.mov" 2>&1 | grep Duration | awk '{print $2}' | tr -d
ffmpeg -i "http://s3.mybucketname.com/videos/my\ video\ file.mov" 2>&1 | grep Duration | awk '{print $2}' | tr -d


  


  However, if I strip out the whitespace in the filename – all is well, and the duration of the video is returned.