MediaServer

Media Server implementing Modern HTTP MPEG-DASH and HLS protocols

OBJECTIVE

The goal of the project is to implement a Media server compatible with both MPEG Dynamic Adaptive Streaming over HTTP ( DASH) and HTTP Live streaming(HLS).

PROJECT DETAILS/PROPOSED METHODOLOGY

The following is our step-by-step plan:

For both the methods the common structure for the Media server/client is :

Server :

• Segment the media or streaming buffer to make a playlist using ffmpeg[3] ( Handle audio and video stream appropriately).

• Add appropriate signature and track information and append the parsable format as mentioned in RFC [1] for HLS and RFC [2] for DASH.

• Encode and encrypt the segments (END-to-END) and send securely over HTTP.

Client :

• Decrpyt the segments upon receiving them ( Handle audio and video stream appropriately).

• Parse the receiving segments and use header information to recreate the proper sequence.

• Decode the sequence and recreate the playlist.

• Read from the buffer and stream it using openCV [4].

Other:

1. Also implement protocol specific logging, adaptive features etc.

2. Evaluate performance metrics to decide which method is better with respect to which parameters.

LIST OF MODULES AND DISTRIBUTION

Siddhartha Mishra

• DASH : Implementation of the segmentation, encryption and specific features and working prototype as mentioned in RFC.

• Client side : Parsing segment and decoding them to recreate playlists on client side.

Raaghav R.

• HLS : Implementation of the segmentation, encryption and specific features and working prototype as mentioned in RFC.

• Client side : Render streaming buffer as received in order on display using OpenCV.

DELIVERABLES

• Implementation of MPEG-DASH and HLS protocol and a working prototype of the Media server and client.

• Performance comparison using visualizable graphs for both protocols based on the following parameters:

  • Streaming performance : Startup delay, jitter, latency, re buffer duration etc.

  • Video Quality : Resolution , packets lossed , Bit rate, frame rate etc.

LIST OF TOOLS, SOFTWARES AND OTHER REFERENCES:

[1] https://tools.ietf.org/html/rfc8216( RFC for HLS)

[2] https://tools.ietf.org/html/rfc6983 (RFC for MPEG-DASH)

[3] https://ffmpeg.org Used to create ffmpeg segments of a continuous stream using a c ommon encoder so that it can be decoded properly on the client side.

[4] https://opencv.org To render video on client side stream from received buffers over network from media server.