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• FFMPEG Online Redistribution in IIS Server Streaming Onvif IP Camera

  23 avril 2015, par Benny Chen

  I’m very new with ffmpeg. Consider the following case :

  I have several onvif ip camera connected to the network with an IIS server inside it. I’d like to allow client to streaming to any of ip camera inside the network but it must through the IIS server.

  So basically each of ip camera will stream to IIS server in single stream and IIS server will re-distribute to many client who request it. My question is how to setup iis server to works with this scenario ? And an example of ffmpeg command line to read from rtsp ip camera and send it the iis server which will re-distribute it to client.

• stream vlc playlist trhough ffmpeg to rtmp live streaming [on hold]

  24 février 2014, par TamilArivu

  i am just tried to stream my playlist mp4 file to my live stream. i am using play my playlist via vlc and also stream via vlc. i am using the following code

  vlc --playlist-autostart --loop  --playlist-tree http://xxxxx.com/test --sout '#transcode{vcodec=h264,vb=300,fps=25,scale=1,acodec=mp4a,ab=64,channels=2}:std{access=rtmp,mux=ffmpeg{mux=flv},dst=rtmp://xxxxx.com/xxx/xxx1}'

  the above code play the playlist file but the streaming is not work . when i am run this code in my ubuntu command prompt it's return the following error

  VLC media player 2.0.8 Twoflower (revision 2.0.8a-0-g68cf50b)
  
  [0x678d58] inhibit interface error: Failed to connect to the D-Bus session daemon: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
  
  [0x678d58] main interface error: no suitable interface module
  
  [0x678d58] main interface error: no suitable interface module
  
  [0x648108] main libvlc error: interface "globalhotkeys,none" initialization failed
  
  [0x648108] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
  
  [0x678d58] qt4 interface error: Could not connect to X server
  
  [0x678d58] skins2 interface error: cannot initialize OSFactory
  
  [0x678d58] [cli] lua interface: Listening on host "*console".
  
  VLC media player 2.0.8 Twoflower
  
  Command Line Interface initialized. Type `help' for help.
  
  > Using network protocols without global network initialization. Please use avformat_network_init(), this will become mandatory later.
  
  Using network protocols without global network initialization. Please use avformat_network_init(), this will become mandatory later.
  
  Using network protocols without global network initialization. Please use avformat_network_init(), this will become mandatory later.
  
  Using network protocols without global network initialization. Please use avformat_network_init(), this will become mandatory later.
  
  x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
  
  x264 [info]: profile High, level 3.1
  
  x264 [info]: final ratefactor: 35.88
  
  x264 [info]: using SAR=109/160
  
  x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
  
  x264 [info]: profile High, level 3.1
  
  [flv @ 0x7f6d09133500] Codec for stream 0 does not use global headers but container format requires global headers
  
  [flv @ 0x7f6d09133500] Codec for stream 1 does not use global headers but container format requires global headers
  
  [flv @ 0x7f6d09133500] Packets are not in the proper order with respect to DTS
  
  [0x7f6d08003808] avformat mux error: could not write frame (pts: 240002, dts: 40001) (pkt pts: 240, dts: 40) 

  how can i solve this problem

• How to tell ffmpeg to encode only the latest frames from input pipe (live streaming) ?

  12 mars 2018, par Valdir

  Similar question on another language : How to get the latest frames in ffmpeg, not the next frame

  Well, basically I receive a vp8 webm chunks through sockets and send it to ffmpeg stdin. My problem is that when the network slows down or temporarily stops, ffmpeg output freezes until the expected chunks arrives. When that happens I can see the output "as expected".

  The real problem is that for every glitch, ffmpeg starts to transcoding from the point it stopped, so let’s say I’m streaming my webcam and at 01:01 I have a network glitch. My chunks are still sent from browser, but never received. At this point the video live streaming (on client’s browser) is at let’s say 01:10, and after the network starts to work as expected, ffmpeg starts receiving all chunks at once since 01:01 and encodes it from that point.

  What I want is ffmpeg to encode only the latest chunks in order to keep in sync with the original video being broadcasted. So I want it to discard that part that lagged.

  It seems like the original problem comes from the socket connection, which sends packets in order and can delay depending on the connection.