p2ptv

    0.5.2 • Public • Published

    p2ptv

    An open source P2P livestreaming module for synchronized playback in HTML5.

    p2ptv distributes live WebM by sending the WebM Byte Stream Format directly to the browser where the experimental MSE API is used for playback. Livestreams are transcoded from RTMP or from a file before being processed by this module.

    The plan is to significantly reduce the cost of livestreaming by forming a P2P distribution network using WebRTC. Currently has only client-server implementation. If you're interested in starting a webservice, it is probably in your best interest to use conventional streaming methods.

    Please note that this is alpha software. Meaning it is experimental, unstable, incomplete, and likely to change drastically between versions. Feel free to contribute if you are interested in the project.

    Supported browsers

    • Chrome 34+
    • Opera 15+
    • Firefox 43+

    Install

    npm install p2ptv
    

    or

    $ git clone git://github.com/eadle/p2ptv.git
    $ cd p2ptv
    $ npm install
    

    Usage

    Without logging:

    $ node example/example.js
    

    With verbose logging:

    $ DEBUG=p2ptv,gateway,peer,push-pull-window node example/example.js
    

    Transcoding

    There's no FFmpeg flag to force placement of a keyframe at the beginning of each cluster. Until this project switches to DASH, just set -cluster_size_limit and -cluster_time_limit to 999999999 or some value that's greater than your expected media segments. It's ugly, but it works.

    From RTMP (with upstream port set to 9001):

    ffmpeg -re -i rtmp://localhost:1935/480p/test -c:a libvorbis -c:v libvpx \
    -g 150 -crf 23 -lag-in-frames 15 -profile:v 2 -qmax 50 -qmin 1 \
    -cpu-used 0 -slices 4 -b:v 2M -cluster_size_limit 999999999 \
    -cluster_time_limit 999999999 -deadline realtime \
    -f webm tcp://localhost:9001;
    

    From a file:

    ffmpeg -i media/test.mp4 -c:a libvorbis -c:v libvpx -g 150 -crf 23 \
    -lag-in-frames 15 -profile:v 2 -qmax 50 -qmin 1 -cpu-used 0 -b:v 1M \
    -cluster_size_limit 999999999 -cluster_time_limit 999999999 \
    -deadline realtime -f webm tcp://127.0.0.1:9001
    

    You may have better results transcoding from RTMP. It really depends on how much processing power you're willing to give your transcoding box.

    License

    MIT

    Contributing

    Not really actively working on this anymore. Feel free to create an issue or pull request though.

    Install

    npm i p2ptv

    DownloadsWeekly Downloads

    12

    Version

    0.5.2

    License

    MIT

    Last publish

    Collaborators

    • siphon