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• Broadcast Live Streaming on a website with an added graphical overlay

  14 avril 2016, par Mohit Saini

  I was doing some research on Live Streaming. I want to develop a solution where I will collect live streams from multiple remote cameras on my website, modify the stream with a custom text banner (i.e. we have on news TV channel, football match) at the bottom and broadcast it to all.

  I know there are Flash plugins available for video streaming and editing, but I want to build this web app to be mobile friendly and responsive.

  HTML5 could be used to display multiple video streams on the website, but how can I add a text banner, graphs or any other frame on a running live stream ?

• How to capture iOS camera and publish RTMP live stream ?

  30 mai 2014, par Smeegol Xie

  I have completed an RTMP player on iOS, using FFmpeg to decode flv1 video and speex audio. Now I want to capture iOS camera and decode H.264 video and AAC audio, then publish video and audio stream to RTMP server, Red5 server as the player programe used before. I know that I should recompile FFmpeg, adding libx264 and libaacplus to support iOS video and audio decoding. But then how to publish RTMP live stream ? Using RTMP_Write() ? RTMP_SendPacket() ? Please just tell me some thoughts or solutions, or it’s very generous of you to show me some code. Thanks !

  Reference : capture camera and publish video with librtmp

• SOLVED - IP camera - Reading live ASF video stream

  30 mai 2014, par Emmanuel Brunet

  I’m trying to read a video stream from an IP camera and store it on disk as several sequential files in MP4 format. I’m using Debian 7.5 with ffmpeg 2.2.

  Let’s assume the camera DNS name is webcam and, the user account / password is account / password

  Input

  the camera input stream is

  ffprobe http://account:password@webcam/videostream.asf
  
  
  
  Input #0, asf, from 'http://account:password@webcam/videostream.asf':
  
    Duration: N/A, start: 0.000000, bitrate: 32 kb/s
  
      Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc), 640x480, 25 tbr, 1k tbn, 1k tbc
  
      Stream #0:1: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 8000 Hz, 1 channels, s16p, 32 kb/s

  ffmpeg conversion

  This command opens the output file but doesn’t read / write anything.

  ffmpeg -y -i http://account:password@webcam/videostream.asf -t 30 -c:v libx264 -c:a libfdk_aac -f mp4 ~/output.mp4

  The process completes successfully and writes 1.1M to the output file.

  Issue

  When I open the /output.mp4 video (in totem), no image is displayed but a gray background but the progess bar moves forward until the end of the video.

  Any idea ?

  for reminder I also would like to save data to a disk file which upon a predefined amount of time should rotate to another output file.

  Thanks in advance