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• doc/developer : Better {} style rule

  27 février, par Michael Niedermayer

  doc/developer : Better {} style rule
  This makes developer.texi consistent with tools/patcheck
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] doc/developer.texi

• Proprietary codecs on Linux. What is legal ?

  17 octobre 2016, par George Eco

  So, assuming we got a distribution without proprietary codecs installed.
  Let’s take Linux Mint for example. I want to store and playback wav and ogg format sounds, either by using my own software, or by using another developer’s software. So far so good right ?

  Imagine now that we have the following scenario. For some reason, I wanna playback a file that is either an mp4 or mp3 or mpeg or any other format, made by proprietary codecs. Instantly, I will need a codec for these formats.

  I read somewhere that Fluendo sells solutions for "legal codec usage" for linux distros.
  URL of fluendo : http://www.fluendo.com/en/

  So here comes the questions :

  Using VLC and ffmpeg is enough for me to convert a file to an ogg or ogv so I can playback a song or a video using an open format. You can also playback playback files made by proprietary formats. But are VLC and ffmpeg legal to use, to playback such files made by proprietary codecs ? For example, ss VLC codecs okay to be used without paying anyone for mp4 playback ? Is it okay to convert a file from mp4 to ogv ?
  If not, are there any legal and open source and free (as in freedom) codecs around that can solve the issue, or does someone have to pay a product, to be ethically correct, to the developers of the proprietaty codecs ?

  Note that I do not ask for Windows, since codec licenses are included to the price of the operating system. I ask exclusively for a free linux distribution.

• Error : The path is not of a legal form while using NReco.VideoConverter

  26 janvier 2017, par Dyon

  I am trying to convert a .flac-file to a .wav-file using NReco.VideoConverter, but I keep getting an error and I do not know why.
  This is the piece of code I am using for the conversion :

          //Create the NReco.VideoConverter.FFMpegConverter object
  
          var ffmpeg = new FFMpegConverter();
  
  
  
          //inputFile will be something like this:
  
          //type: string, "C:\\some\\folder\\fullTrackName" + ".flac"
  
          var inputFile = Path.Combine(downloadFolder + fullTrackNameNoExtension + ".flac");
  
  
  
          //outputFile will be something like this:
  
          //type: string, "C:\\some\\folder\\musicfile" + ".wav"
  
          var outputFile = Path.Combine(downloadFolder + fullTrackNameNoExtension + ".wav");
  
  
  
          //Convert the file using NReco.VideoConverter.FFMpegConverter
  
          ffmpeg.ConvertMedia(inputFile, outputFile, null);

  inputFile/outputFile would be like this, this is what I see when I insert a breakpoint and check the values of in/outputFile :

  string, inputFile/outputFile : "Z :\Downloads\Audio - File (Original Mix).flac" (or .wav)

  And this is the error I receive when I run ffmpeg.ConvertMedia :

  System.ArgumentException: The path is not of a legal form.
  
     at System.IO.Path.LegacyNormalizePath(String path, Boolean fullCheck, Int32 maxPathLength, Boolean expandShortPaths)
  
     at System.IO.Path.NormalizePath(String path, Boolean fullCheck, Int32 maxPathLength, Boolean expandShortPaths)
  
     at System.IO.Path.GetFullPathInternal(String path)
  
     at System.IO.File.InternalGetLastWriteTimeUtc(String path, Boolean checkHost)
  
     at NReco.VideoConverter.FFMpegConverter.EnsureFFMpegLibs()
  
     at NReco.VideoConverter.FFMpegConverter.ConvertMedia(Media input, Media output, ConvertSettings settings)
  
     at NReco.VideoConverter.FFMpegConverter.ConvertMedia(String inputFile, String inputFormat, String outputFile, String outputFormat, ConvertSettings settings)
  
     at NReco.VideoConverter.FFMpegConverter.ConvertMedia(String inputFile, String outputFile, String outputFormat)
  
     at APPLICATION_Name.APPLICATION_Class.ConvertFile(String downloadFolder, String fullTrackName, String fullTrackNameNoExtension, String downloadQuality, String downloadType) in X:\APPLICATION_Name\DownloadTrack.cs:line 244