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• Joining a video stream in ffmpeg by passing an SDP file as inline data

  8 novembre 2019, par user1447903

  Afternoon.
  Using ffmpeg I can open an SDP file using the syntax :

  ffmpeg -protocol_whitelist file -i file.sdp

  Does anyone know if it is possible to join the stream described in the sdp file without first writing the contents to a file ?

  So, for example, if the SDP file contents is :

  v=0
  
  m=video 1234 RTP/AVP 96
  
  c=IN IP4 232.1.2.3
  
  a=rtpmap:96 MP4V-ES/90000
  
  a=source-filter: incl IN IP4 232.1.2.3 1.2.3.4

  Can I use the data input type described here :
  https://ffmpeg.org/ffmpeg-protocols.html#data

  To join the same stream doing something like :

  ffmpeg -protocol_whitelist data -i "data:application/sdp;charset=UTF-8,v=0 \r\n...."

  The answer /seems/ to be no, but I thought I’d ask "the internet" in case I am simply doing something wrong...

• How to decode Byte string from continous video frames in python

  15 juillet 2021, par fresch man

  i am trying to get PNG from a video stream. first i connect the server during socket, and i recieve presistent byte string. however when i use Pickel ,i get a Error,that is UnpicklingError : invalid load key, '\x10.

  


  i surpose that ,if i should first do someting to the bytestring before i use pickel.or i should use another methode

  


  i have already search in the internet, but all the answers are , open locally video and so ..but my byte string are acctully presistent RAW video frames(yuv420) during tcp transport.

  


  `import socket,os,struct,numpy,pickle
TCP_IP = '192.168.0.90'
TCP_PORT = 5000
BUFFER_SIZE =1024
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((TCP_IP, TCP_PORT))
while True :
        data = s.recv(BUFFER_SIZE)
        data = pickle.loads(data) `


  


  thank you

  


• Stream list of videos with ffmpeg and live555

  9 juin 2015, par f3r83

  I’m developing a C++ application that streams a list of urls every n seconds in a loop. To do this, I use ffmpeg and live555 libs. I use VS2010 as IDE too.

  I stop the video that is playing and play the next one in the list every n seconds and this works ok. But I have a serious problem, there are some resource leaks that increment the Handle Count every time I play a video.

  Debugging my application and searching on the Internet I find that there are some problems in ffmpeg : leak in avcodec_open2 and some problems with sockets in live555 under Windows : live55 problem. I use some tools as Intel Inspector to find problems too.

  Can anybody gives me some help ?