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• avformat:matroskadec : use a define to mark the EBML length is unknown

  23 février 2019, par Steve Lhomme

  avformat:matroskadec : use a define to mark the EBML length is unknown
  Unifying the way the EBML unknown length is signaled, rather than using two
  
  incompatible values. UINT64_MAX cannot be read as a valid EBML length with the
  
  current code.
  Co-authored-by : Steve Lhomme <robux4@ycbcr.xyz>
  
  Co-authored-by : Dale Curtis <dalecurtis@chromium.org>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/matroskadec.c

• Use Ffmeg to Convert Video to Gif android studio

  21 octobre 2014, par Donnie Ibiyemi

  Am currently making a simple Androidapp that converts a video from the sd card into a gif.

  I learnt Ffmeg is the most efficient method to handle the conversion. But i have no idea how to add ffmeg to my android studio project.

  Please kindly point me in the right direction

• Trouble setting up rtmp audio streaming with ffmpeg and nginx

  20 septembre 2021, par igoryonya

  Can't figure out how to set up rtmp streaming with ffmpeg.
I've been trying to figure it out for about 2 weeks now.
I need to stream the default sound from my sound card over rtmp stream.
I don't need a video, only an audio.

  


  So, i've installed nginx with rtmp module and added the following code at the end of my "/etc/nginx/nginx.conf" file :

  


  rtmp {
        server {
                listen 1935;
                application cam1 {
                        live on;
                }
        }
}


  


  restarted my nginx installation :

  


  sudo systemctl status nginx.service


  


  Checked that the 1935 port is listening :

  


  ~$ sudo netstat -nlp|egrep -i 'nginx'
tcp        0      0 0.0.0.0:1935            0.0.0.0:*               LISTEN      1885931/nginx: mast 
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      1885931/nginx: mast 
tcp6       0      0 :::80                   :::*                    LISTEN      1885931/nginx: mast


  


  Launched an ffmpeg to capture my sound card, encode it into ogg format and stream it to the rtmp server (on the same computer with nginx installed) :

  


  ffmpeg -re -f pulse -i default -c:a libvorbis -content_type 'audio/ogg' -vn -f ogg rtmp://127.0.0.1/cam1/test


  


  And it looks like, it's streaming, by showing statistics.

  


  Then, I try to open it with the vlc player to test the stream and the yellow bar on the progress bar just going back and forth and never starts playing.
I tried to use vlc on the same computer and on the computer on the same network.

  


  Assuming, the computer, that is streaming rtmp has an IP : 192.168.0.1, I use the following connection URL in VLC :

  


  rtmp://192.168.0.1/cam1/test