Recherche avancée

Sur d’autres sites (5286)

• Streaming Webcam Over LAN : HTML5 Video Element Not Loading

  27 novembre 2023, par Franck Freiburger

  I am currently working on a project where I aim to stream my webcam over my LAN and read the stream in an HTML5 video element with minimal setup. My setup involves a server (192.168.0.1 dev/video0 -> ffmpeg) and a client (192.168.0.2 html5 browser). I am using ffmpeg with the codec set to h264.

  


  Here is the ffmpeg command I am using :

  


  ffmpeg -f video4linux2 -i /dev/video0
  -an -c:v libx264 -b:v 1024k -video_size 800x600 -pix_fmt yuv420p -preset ultrafast
  -tune zerolatency -g 16 -keyint_min 16 -f mpegts pipe:1


  


  This command is spawned by a simple Node.js server that shares this stream without any transformation (just pipe ffpmeg stream to each incoming connection).

  


  When I use vlc or ffplay with the following command, it works very well :

  


  ffplay -fflags nobuffer -flags low_delay -probesize 32 -analyzeduration 0 -framedrop http://192.168.0.1:3000/stream


  


  I can even run multiple instances of ffplay and the video is properly played. However, when I try to use the HTML5 element like this :

  


  <video src="http://127.0.0.1:3000/stream" type="video/mp4"></video>&#xA;

  


  The video seems to "load forever" without any error, nothing suspect in chrome://media-internals. I can see in the network tab that the network is reading the stream, but the video does not play (got same result using hljs and videojs).

  


  

  


  I am looking for help to understand :

  


  

  • What is wrong with the <video></video> element in this context ?

  


  • Is there a better approach to achieve this ?

  


  


  Any help or guidance would be greatly appreciated.

  


• avformat/dashenc : addition of segment index correction logic

  11 avril 2018, par Vishwanath Dixit

  avformat/dashenc : addition of segment index correction logic
  The logic is applicable only when use_template is enabled and use_timeline
  
  is disabled. The logic monitors the flow of segment indexes. If a streams's
  
  segment index value is not at the expected real time position, then
  
  the logic corrects that index value.
  Typically this logic is needed in live streaming use cases. The network
  
  bandwidth fluctuations are common during long run streaming. Each
  
  fluctuation can cause the segment indexes fall behind the expected real
  
  time position. Without this logic, players will not be able to consume
  
  the content, even after encoder's network condition comes back to
  
  normal state.
  

  • [DH] doc/muxers.texi
  • [DH] libavformat/dashenc.c

• Anomalie #4127 : Bug de version initiale ?

  17 septembre 2018, par b b

  Pour info, la source de tout ça semble être le commit https://zone.spip.org/trac/spip-zone/changeset/50708/spip-zone#file1 lié au ticket #2238 (merci à denisb pour la recherche).