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• ffmpeg real-time encoding. Encode while file uploading by chunks

  29 avril 2020, par skatehype

  Now the process is :
1) File upload
2) Encode file with ffmpeg when file has been uploaded

  



  Can be done at the same time ?, obviusly yes, but I don't know how.

  



  The file upload process is by 8MB chunks stored in server, then, temporary I have videofile.ext.tmp that is growing up to final uploaded file.

  



  I read about ffmpeg -stream_loop or -loop parameters, but I don't know if the upload process is good for real-time encoding or how to manage it.

  



  Any help will be appreciated.

  


• hide text in real time video python opencv

  29 septembre 2016, par Elmehdi Alloul

  i need to know how can i find the place of an given text in a video real time stream and add blur box on it with python and opencv.

  import numpy as np
  
  import cv2
  
  import subprocess as sp
  
  import socket
  
  import numpy
  
  import sys
  
  input = 'rtmp://127.0.0.1:1935/live/cha'
  
  cap = cv2.VideoCapture(input)
  
  output_file = 'rtmp://127.0.0.1:1935/live/cho'
  
  text="simple"
  
  def get_blur_box(input_img, input_template, threshold):
  
  if (exist text):
  
    addblurbox()
  
  else 
  
    nothing

  any one can help me to begin i’m a beginner in opencv.

• Stream real-time (video+audio) via WebRTC (TCP) with chromakey && webm, best practices - how ? [on hold]

  18 octobre 2018, par Kirill K

  Please tell us about the best practics in your opinion for the case described below.
  Are there any hardware solutions for this case ?

  I want to get the real-time stream from the ip camera, overlay a chromakey, transcode into the necessary codecs (VP8 + opus), and distribute stream via webrtc over tcp to many users with some kind of authentication, for example, via a dynamic token.
  The delay from real time should be minimal.
  The solution should be stable (do not fall after 1 hour or 24 hours).

  Now I have decided on such a solution, but the time costs are too high (delay from real-time strem), maybe there you will offer be a more elegant solution :

  1. IP Camera (h264 + aac)
  2. FFmpeg (transcoding to VP8\OPUS + chromakey)
  3. FFserver (pack to rtp (for webcallserver))
  4. WebCallServer (WebRTC)

  I tried the following solutions :

  • Flussonic - missing WebRTC via TCP
  • Wowza (written in java) - crashes, support could not say the exact reasons, talked for more than 2 months, tested on different servers in different Data Centres