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• Using ffmpeg to restream youtube videos

  2 juin 2020, par ILoveCake

  I want to restream 3 youtube videos (each one is a live webcam) in this way : they would run one after the other, but each one runs for only 1 minute. All this in a loop. So my live stream would eventually look like this :
cam1, cam2, cam3, cam1, cam2, cam3, ...
I have tried to used youtube-dl and ffmpeg (these are my preferred command line tools) to download each stream, let it run for 1 minute and restream it. The problem is that I have to start ffmpeg each time. So when it stops and starts again, the live stream stops and starts again (after about 15 seconds). Here is my code (for bash) :

  



  The main script : (FILE is an array with the 3 URLs for the videos)

  



  for URL in "${FILE[@]}"
do
  timeout 1m /usr/local/bin/get_livestream.sh $URL
done



  



  and get_livestream.sh :

  



  youtube-dl -q -o - -- $1 | ffmpeg -re -loglevel warning -hide_banner \&#xA;  -i - -s 960x540 -c:v libx264 -b:v 2M -c:a copy \&#xA;  -strict -2 -flags &#x2B;global_header -bsf:a aac_adtstoasc -bufsize 2100k \&#xA;  -f flv rtmp://live.twitch.tv/app/<key>&#xA;</key>

  


• FFMPEG stream RTSP to RTMP (Youtube) add logo

  16 juin 2017, par Māris Purviņš

  To stream video from IP cam to Youtube I’m using code (through Ubunu) :
  ffmpeg -f lavfi -i anullsrc -rtsp_transport tcp -i rtsp ://user:psw@192.168.0.100:554 -tune zerolatency -vcodec libx264 -pix_fmt + -c:v copy -c:a aac -strict experimental -f flv rtmp ://a.rtmp.youtube.com/live2/ -nostdin -nostats /dev/null 2>&1 &

  It is a bee project for school
  I have two cameras and two streams :
  https://www.youtube.com/watch?v=ws-VcLXo-hI

  Everything is ok, but... I would like to know :
  1. How to add png logo to this strem. I have tried -i /home/user/rvvg_logo_round.png -codec:v libx264 -preset ultrafast -filter_complex overlay and another methods but without a result.
  2. Sometimes there is some problem during night and video streaming stops. How to automatically check process status and restart stream.
  I have tried to create sh file as described in http://videos.cctvcamerapros.com/raspberry-pi/ip-camera-raspberry-pi-youtube-live-video-streaming-server.html and put in cron job, bet that is only to check one cam process. Is there some better idea ?

• Stream to youtube using Hardware Encoding

  28 août 2021, par Renan F.

  I'm currently streaming to youtube using NVIDIA hardware encoding to reduce the load on the CPU, with this code :

  


  ffmpeg -framerate 30 -f gdigrab -i desktop -f lavfi -i anullsrc -c:v h264_nvenc -f flv "rtmp://a.rtmp.youtube.com/live2/KEY"


  


  My screen resolution is 2560x1080, but this is the result i get in youtube :


  


  There are huge empty spaces on both sides, and the resolution is not so good, even selecting "HD" on youtube.

  


  I tried to specify in the last parameter before flv,
-s 2560x1080 but I could not see any difference.

  


  Also would like to ask if someone knows what -qp 0 does, I could not find it in the documentation, it does appear here :

  


  https://trac.ffmpeg.org/wiki/Capture/Desktop

  


  Under hardware encoding.

  


  Looking for any advice, taking in mind I'm trying to reduce the CPU usage and keep a normal/good resolution.