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March 16, 2017

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HDS VS HLS – Which is better?

Thanks for checking us back again! As a short recap on our Streaming Mini-Series so far, we’ve started by analyzing the overall difference between Streaming Technologies and Progressive Downloads (something we still owe a proper introduction to, and we’ll cover as we move forward), and then started our journey through Streaming Proprietary Technologies. Adobe was the first proprietary brand we’ve been introducing through our past three articles on RTMP, HLS and HDS, and today’s article completes our introduction to Apple/Adobe by questioning something rhetorical – “which is better, HDS or HLS?”. Before getting technical with the article, let us kindly remind you we’re barely halfway through our Streaming Mini-Series journey: we have yet several Streaming and so-called “Pseudostreaming” technologies or “methodologies” to cover, not to even mention security considerations which are an additional layer of complexity when it comes to Securing assets. Let us now start specula

Streaming Video on Demand with nginx and RTMP Module

In this tutorial we will show a simple way to stream different types of video files using the Nginx server and RTMP modules. Before starting the work, we will try to offer a small overview over the advantages of using RTMP versus HTTP video delivery. Real Time Messaging Protocol (RTMP) was initially developed by Macromedia, for streaming on-demand and live media to Adobe Flash applications. It is a TCP-based protocol which maintains persistent connections and is defined as a “stateful” protocol. This means that from the first time a client connects until the time it disconnects, the streaming server keeps track of the client’s actions. On the other side, HTTP is a “stateless” application protocol used to deliver hypermedia information across the Internet worldwide. Advantages of HTTP over RTMP: Less likely to be blocked by firewalls at different levels in the network; RTMP uses default port 1935, which can be blocked sometimes, especially within corporate firewalls S

Streaming Media Delivery Using NGINX Plus

NGINX is widely used to deliver MP4 and FLV video content using progressive downloads or HTTP pseudo-streaming . Progressive downloads rely on the efficiency of the streaming server to handle disk I/O and concurrent connections, while MP4 or FLV pseudo-streaming capabilities also allow the clients to use a simple “trick-play” technique to seek to the desired position in a video stream without needing to download the entire resource. NGINX Plus extends this capability to support adaptive streaming for video-on-demand (VOD) applications with Apple HLS and Adobe HDS , and Flash-based services using RTMP . Among other benefits, adaptive streaming allows the video player to select the most appropriate bit-rate in real-time. NGINX Plus can also impose smart bandwidth limits on individual MP4 streams to prevent fast clients and download accelerators from using unnecessary resources, and the enhanced session logging capabilities of NGINX Plus reduce the overhead of the standard

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