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• Broadcasting to YouTube Live via RTMP using VLC from terminal

  29 mars 2018, par devprashant

  When running :

  cvlc -vvv 'Bootstrap Tutorial.mp4' --sout '#rtp{dst=rtmp://a.rtmp.youtube.com/live2,name=pa1p-8c4m-zzvp-5j6t,mux=ts}'

  I get this debugging log.

  When additionally specifying the access method :

  cvlc -vvv 'Bootstrap Tutorial.mp4' --sout '#std{access=rtmp,dst=rtmp://a.rtmp.youtube.com/live2/pa1p-8c4m-zzvp-5j6t,mux=ts}'

  I get this debugging log.

  How do I stream live video and audio to YouTube using VLC from terminal ?

  Resources I looked into :

  1. https://blog.vucica.net/2015/08/streaming-to-youtube-live-with-vlc-and-ffmpeg.html
  2. https://forum.videolan.org/viewtopic.php?f=14&t=130520&p=436913&hilit=rtmp+youtube#p436913
  3. Problems Starting VLC HTTP Stream with Servlet
  4. https://forum.videolan.org/viewtopic.php?f=4&t=112221&p=380232&hilit=rtmp+youtube#p380232

• Probing an RTMP address for streaming to check if it's in use

  20 juillet 2020, par hedgehog90

  I need a quick, lightweight method to probe rtmp addressses in Windows and Ubuntu to see if they are 'free' for upload.

  


  One possible way of checking is to simply send a dummy video stream to an rtmp address with a simple ffmpeg command :

  


  ffmpeg -re -f lavfi -i color=c=black:s=2x2:r=1 -f lavfi -i anullsrc=cl=mono:r=44100 -c:v h264 -c:a aac -t 10 -f flv -y rtmp://streaming.service.com/live/1234567890

  


  If the rtmp address is in use, depending on the streaming service's rtmp server, I'll get an error response from ffmpeg like

  


  [rtmp @ 000002a908997cc0] Server error: Stream name is already in use: 1234567890
rtmp://streaming.service.com/live/1234567890: Operation not permitted


  


  However, if the rtmp address is free then it will publish my dummy video stream, which I don't want to do.

  


  Preferably I'd just like to probe the rtmp server without encoding a dummy video stream.

  


  I've tried using ffprobe and rtmpdump but for streaming services they usually won't allow playback from the rtmp address they assign you, the request will be rejected.

  


  I'm programming in javascript for a NodeJS application, so if there's a node package available then that would be very useful to know.

  


• How to Live Stream YouTube without Audio [on hold]

  23 septembre 2016, par arsenalist

  I have two IP cam and a computer with ffmpeg to re-stream them to YouTube.

  First Cam

  It has Video and Audio. I can re-stream to YouTube successfully with this command.

  ffmpeg -re -rtsp_transport tcp -i rtsp://192.168.aaa.bbb:554/ch0_1.h264 -acodec libmp3lame -ar 44100 -b:a 128k -pix_fmt yuv420p -profile:v baseline -s 426x240 -bufsize 2048k -vb 400k -maxrate 800k -deinterlace -vcodec libx264 -preset medium -g 30 -r 30 -f flv rtmp://a.rtmp.youtube.com/live2/

  Second Cam

  It has Video only. However, with both commands below, I can’t stream to YouTube. (although the ffmpeg process is running well)

  ffmpeg -re -rtsp_transport tcp -i rtsp://192.168.aaa.ccc/Streaming/Channels/102 -an -pix_fmt yuv420p -profile:v baseline -s 426x240 -bufsize 2048k -vb 400k -maxrate 800k -deinterlace -vcodec libx264 -preset medium -g 30 -r 30 -f flv rtmp://a.rtmp.youtube.com/live2/

  or

  ffmpeg -re -rtsp_transport tcp -i rtsp://192.168.aaa.ccc/Streaming/Channels/102 -acodec libmp3lame -ar 44100 -b:a 128k -pix_fmt yuv420p -profile:v baseline -s 426x240 -bufsize 2048k -vb 400k -maxrate 800k -deinterlace -vcodec libx264 -preset medium -g 30 -r 30 -f flv rtmp://a.rtmp.youtube.com/live2/

  I’ve test both camera’s stream first using FLV, and they work well. So, the issue is not the URL of IP camera.

  From what I understand, YouTube define stream as audio-video content. However, what if the source only has Video.

  So, my question :

  How to live stream YouTube without audio, specially from an IP cam ?

  Thanks