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• How can i use live data from an api to livestream using FFMPEG

  17 août 2022, par Steve Mimshak

  I would like to use live data from an api in a live stream video in real time how i did not find any information about how this is possible.

  


  I want to use an ubuntu server with FFMPEG to create the livestream.

  


  Does anyone know how to do it.

  


• http: add hack to make streams served by MediaGateway not seekable

  3 novembre 2013, par wm4

  http: add hack to make streams served by MediaGateway not seekable
  These streams are reported as seekable, but all tests show they are not,
  
  and the server merely pretends the streams are seekable. The server
  
  responds with :
      content-range : bytes 0-1999999999/2000000000
  Range requests seem to be correctly answered, but the actual data
  
  returned at the same offset is different. Assume this is a bug in the
  
  server software. The server identifies itself as :
      Server : MediaGateway 3.5.2-001
  Add a hack that checks the server name, and disables seeking in this
  
  case.
  Test URL : http://8283.live.streamtheworld.com:80/CBC_R1_VCR_H_SC
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavformat/http.c

• How to use ffmpeg to transcode many live streamed videos ? [closed]

  21 septembre 2020, par user14258924

  PREMISE

  


  As a pet project, I am writing a live video streaming service, in Go, that can consume video streams from OBS via SRT(TS -> h264/aac) and RTMP(FLV -> h264/aac) protocols and am planning to support streaming video from web browser as well, captured from a web camera via JS. This ingress server will receive many video streams in various containers and codecs and I need to normalize them into single container and codec and then create multiple versions for various bitrates(ie. 240p, 360p, 480p, 720p, 1080p...) to pass along where needed in the application. Each stream is split into 2 second GOP segments, separate for audio and video track, that will produce fragmented MP4 as the end result - which can be consumed by web browser.

  


  The issue is that I am using Go which has no libraries for transcoding video so I need to use either ffmpeg or vlc, which is a C code. I have decided to avoid the CGo route and use ffmpeg/vlc as standalone binaries.

  


  QUESTION

  


  My question is how to use either of these project in the most efficient way - avoiding the use of files in favour of unix sockets/streams and also the performance aspect - handling hundreds of video segments in any one time and in sufficient time to avoid creating too much of a lag beteen producer and consumer.

  


  So let's say I will pick the most used one - ffmpeg, how should I actually use it to achieve what I have described ? How would you set it up and which flags/config to use with it ?

  


  Can the performance be even achieved or is it just too much and I will need some sort of ffmpeg cluser to even come close to some useful performance/low delay ?