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• 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.

• How to convert an rtmp stream to HEVC DASH/HLS using nginx ?

  17 juillet 2019, par Hakan Murat Aksüt

  exec_push /usr/bin/ffmpeg -re -i rtmp://localhost:1935/$app/$name -ar 44100 -vcodec libx264 -g 25 -f flv rtmp://localhost/live/$name_hi

  I can broadcast h264 video on my nginxg server. but it doesn’t work when I want to make h265 instead of h264. I found out that this is because rtmp does not support h265. Is there a way to do this using rtmp if possible ?
  if not, what else can be used to stream h265 video in nginx instead of rtmp.

  rtmp {
  
      server {
  
              listen 1935;
  
              chunk_size 4096;
  
  
  
              application src {
  
                  live on;
  
                  exec_push /usr/bin/ffmpeg -re -i rtmp://localhost:1935/$app/$name -ar 44100 -vcodec libx264 -g 25 -f flv rtmp://localhost/live/$name_hi;
  
              }
  
  
  
              application live {
  
                      live on;
  
                      hls on;
  
                      hls_path /usr/share/nginx/hls; #file path for save
  
                      hls_fragment 1;
  
                      hls_playlist_length 10; 
  
                      hls_cleanup on;
  
                      dash on;
  
                      dash_path /usr/share/nginx/dash; #Sets MPEG-DASH playlist and fragment directory. If the directory does not exists it will be created.
  
                      dash_fragment 1; #Sets MPEG-DASH fragment length. Defaults to 5 seconds.
  
                      dash_playlist_length 10; #Sets MPEG-DASH playlist length. Defaults to 30 seconds.
  
  
  
                      dash_cleanup on; `
  
                     } 
  
  }

• Recommendation on the best quality/performance H264 encoder for video encoding ?

  20 août 2013, par kheya

  I am looking for a video encoder that is fast, requires less CPU power and produces very good quality mp4 video.

  The input videos can be in any format and uploaded by users.

  Only thing I know is FFMPEG library.

  Is there anything else that is better ?

  The program must have a batch utility (exe) that I am interested in.

  I would appreciate if you kindly share your knowledge.

  Thanks