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• ffmpeg transcode to live stream

  14 septembre 2016, par brayancastrop

  I need to display a ip camera stream in an html video tag, i have figured out how to transcode to a file from the rtsp stream like this

  ffmpeg -i "rtsp://user:password@ip" -s 640x480 /tmp/output.mp4

  now i need to be able to be able to live stream the rtsp input in a video tag like this

  <video src="http://domain:port/output.mp4" autoplay="autoplay"></video>

  I was trying to do something like this in my server (an ubuntu micro instance on amazon) in order to reproduce the video in the video tag but didn’t work

  ffmpeg -i "rtsp://user:password@ip" -s 640x480 http://localhost:8080/stream.mp4

  instead i got this log

  [tcp @ 0x747b40] Connection to tcp://localhost:8080 failed: Connection refused
http://localhost:8080/stream.mp4: Connection refused

  i don’t really understand what’s happening, not sure if it’s sending the output to that url or serving the output there and this, i’ve been checking the ffmpeg man docs but i didn’t find any example related to this use case and also other questiones like this one FFmpeg Stream Transcoding which is similar to my last try without success

  btw, this is the camera i’m using DS-2CD2020F-I(W) - http://www.hikvision.com/en/Products_accessries_157_i5847.html
  they offer an httppreview but it’s just an img tag source which updates but appears to be unstable

  This is my first time trying to do something like this so any insight about how to achieve it will be really usefull and appreciated

• How To Install FFMPEG on Elastic Beanstalk

  13 avril 2017, par Nick Lynch

  This is not a duplicate, I have found one thread, and it is outdated and does not work :
  Install ffmpeg on elastic beanstalk using ebextensions config.

  I have been trying to install this for some time, nothing seems to work.
  Please share the config.yml that will make this work.

  I am using 64bit Amazon Linux 2016.03 v2.1.6 running PHP 7.0 on Elastic Beanstalk

  ---

  My current file is

  branch-defaults: 
  
    default: 
  
      environment: Default-Environment
  
    master: 
  
      environment: Default-Environment
  
  global: 
  
    application_name: "My First Elastic Beanstalk Application"
  
    default_ec2_keyname: ~
  
    default_platform: "64bit Amazon Linux 2016.03 v2.1.6 running PHP 7.0"
  
    default_region: us-east-1
  
    profile: eb-cli
  
    sc: git
  
  packages: ~
  
  yum: 
  
    ImageMagick: []
  
    ImageMagick-devel: []
  
    commands: 
  
      01-wget: 
  
        command: "wget -O /tmp/ffmpeg.tar.gz http://ffmpeg.gusari.org/static/64bit/ffmpeg.static.64bit.2014-03-05.tar.gz"
  
      02-mkdir: 
  
        command: "if [ ! -d /opt/ffmpeg ] ; then mkdir -p /opt/ffmpeg; fi"
  
      03-tar: 
  
        command: "tar -xzf ffmpeg.tar.gz -C /opt/ffmpeg"
  
        cwd: /tmp
  
      04-ln: 
  
        command: "if [[ ! -f /usr/bin/ffmpeg ]] ; then ln -s /opt/ffmpeg/ffmpeg /usr/bin/ffmpeg; fi"
  
      05-ln: 
  
        command: "if [[ ! -f /usr/bin/ffprobe ]] ; then ln -s /opt/ffmpeg/ffprobe /usr/bin/ffprobe; fi"
  
      06-pecl: 
  
        command: "if [ `pecl list | grep imagick` ] ; then pecl install -f imagick; fi"

• How to record (and process ?) a video that is streamable from Android

  13 mai 2016, par afollestad

  My company’s app relies heavily on video recording and playback of web-based videos. I use the MediaRecorder API to record videos, through this library designed by me : https://github.com/afollestad/material-camera.

  For playback, I use this library which is basically a wrapper around Google’s ExoPlayer library : https://github.com/brianwernick/ExoMedia.

  It works fine for the most part with small videos, especially if I decrease bit rates for audio and video. However, larger and higher quality videos have many issues. Sometimes they seem to buffer forever, sometimes playback doesn’t even start successfully, etc. Again, these videos are being streamed over HTTP from Amazon S3.

  ---

  I’ve read a little bit about FFMPEG, and how it can process MP4’s for "faststart", splitting the files into chunks for DASH, etc. However, FFMPEG solutions for Android seem a bit complex, so...

  Is there anyway to record MP4’s from Android, with MediaRecorder, MediaCodec, or some other API which results in a video file that is fast to stream ? It amazes me how well Snapchat has figured this out.