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• FFPLAY unable to facebook live stream url i.e. rtmps url

  1er mai 2020, par Shankar

  I am trying to play facebook live streraming url using ffplay where i have used rtmps stream url & stream key. I have enabled openssl library and rtmps library in ffmpeg. But while running command of ffplay with stream url & key, i am getting Pull function error.
  
So is there any solution known please let me know.
Thank you.

  


• how to deal with live raw h264 stream to send over network

  3 novembre 2015, par jinhwan

  what I want to do is that send live camera stream which is encoded by h264 to gstreamer. I already have seen many example which send over network by using rtp and mpeg-ts. But problem is that all those examples assume that the input will be served by fixed file or live stream which is already transcoded in transport portocol like below.

  client :
  gst-launch-1.0 videotestsrc horizontal-speed=5 ! x264enc tune="zerolatency" threads=1 ! mpegtsmux ! tcpserversink host=192.168.0.211 port=8554

  server : gst-launch-1.0 tcpclientsrc port=8554 host=192.168.0.211 ! tsdemux ! h264parse ! avdec_h264 ! xvimagesink

  But, My camera offer the below interface (written in java, actually work on adnroid). The interface offer just live raw h264 blocks.

  mReceivedVideoDataCallBack=newDJIReceivedVideoDataCallBack(){
  
      @Override
  
      public void onResult(byte[] videoBuffer, int size)
  
      {
  
  }

  I can create tcp session to send those data block. But, how can i make those data which is not packed in transport protocol into format which is understable by gstreamer tcpclient ?
  Transcode the original stream in ts format in the camera side can be a solution. But i have no clue to do transcode from non-file and non-transport-format data. I have searched gstreamer and ffmpeg, But I could not derive a way to deal h264 block stream using the supported interface, unitl now.
  Or, Are there any way to make gstreamer to directly accept those simple raw h264 block ?

• Azure Media service live streaming using raspberry pi 2

  29 juillet 2015, par emy virk

  I have tried to stream a video from my raspberry pi 2 using a webcam using the tutorial here http://gtrifonov.com/2015/07/02/streaming-live-video-from-raspberrypi-to-azure-media-services/.
  Using ffmpeg, I am running this in Ubuntu mate terminal :

  ffmpeg -framerate 30 -r 30 -s 640×480 -i /dev/video0 -vcodec libx264 -preset ultrafast -acodec libfaac -ab 48k -b:v 500k -maxrate 500k -bufsize 500k -r 30 -g 60 -keyint_min 60 -sc_threshold 0 -f flv $INGESTURI

  Now, to see the video is streaming I am using PLAY PREVIEW URL from the azure portal. It works, interrupted, at a very fast speed for about 5 second and than it stops with an error
  After that I try to play the video again and I can see the one that was streaming before the error and than it breaks again.
  From the Ubuntu mate I can tell the streaming is working fine : connection established and I can see the frames being sent.

  fps=7.9 q=28 bitrate = 500 kbits

  any idea why this is happening ?