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• 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 ?

• Anomalie #2954 : chevauchement titre rubrique et logo

  8 mars 2013, par chan kalan

  réponse de Cédric : oui mais malheureusement ce n’est pas si simple. Le float avait evidement été utilisé en première intention, mais je me souviens être passé à cette alternative à cause de bug IEx/Win. Il faudrait remonter dans le temps des commits pour retrouver l’origine du problème et vérifier qu’on (...)

• How to find if the videos have sound in it ?

  15 avril 2021, par RAVI

  I've a some hundreds of video files in a folder structure. All of them have video and audio streams, but some of them don't have any sound, despite having an audio stream. Is there a way to find out those files without having to resort to opening each file individually.

  



  Most ways I know only check if there is an audio stream.

  



  Thanks.