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• avcodec/utils : av_register_codec & hwaccel() that work in O(1) time

  8 décembre 2013, par Michael Niedermayer

  avcodec/utils : av_register_codec & hwaccel() that work in O(1) time
  Its possible to implement this with a few lines less code but it then
  
  would flip the order of the list and require registration of external
  
  codecs to be done first, also it could break user applications due to
  
  this. Thus to maintain ABI this slighty more complex solution is
  
  used.
  Reviewed-by : Stefano Sabatini
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/utils.c

• FFMpegConverter. ConvertLiveMedia method doesn't work

  30 septembre 2016, par neustart47

  I need to convert files from AWS cloud, which mounted like a local drive by using TntDrive.
  I tried to use FFMpegConverter.ConvertMedia method, but it works slow. In another question someone explained to me next :

  "It looks like you need to use the FFMpegConverter.ConvertLiveMedia method instead of the FFMpegConverter.ConvertMedia method to achieve this. Overall you will still find that you will be probably I/O bound rather than CPU bound."

  But next code didn’t work for me :

  static void Main(string[] args)
  
          {
  
              string input_path =
  
                  @"D:\WAV\ALBUM1\UNDER_ALBUM1\APOV01_10 POV 8_MAIN.WAV";
  
              string dest_path = @"D:\result.mp3";
  
              using (FileStream inputStream = new FileStream(input_path, FileMode.Open))
  
              {
  
  
  
                  var converter = new FFMpegConverter();
  
  
  
                  var result = converter.ConvertLiveMedia(
  
                      inputStream, "WAV",
  
                      dest_path, "MP3",
  
                      new ConvertSettings
  
                      {
  
                          AudioSampleRate = 44100,
  
                          CustomOutputArgs = " -b:a 192k "
  
                      }
  
                      );
  
                  Console.ReadLine();
  
              }
  
  
  
          }

  What’s wrong with my code ?

• How ffmpeg work on server for different type of users ? [on hold]

  7 août 2016, par sam

  I have a question about ffmpeg and I am using mac and xampp and php and jQuery. I make a function that upload video or image file or another type when I saw examples of ffmpeg in Stack Overflow. My questions are :

  1. client can be window user or mac or another than we have to download all different type of ffmpeg file for example ffmpeg.exe and mac can be another because when I saw how to download ffmpeg than they show me different operating system.

  2. And where we have to save ffmpeg file in xampp

  3. If I download all things for mac and I run it and it works and I make my website online and than any Windows user or Linux user will upload video it will work for him also. But we do not client download ffmpeg in their system

  If anybody know good example of create thumbnail for video please tell me.