![]() Diving deep into the scriptīefore processing the conversion, Let’s find a little bit more about our source file. ![]() Now, the file generated playlist.m3u8 is an extended M3U playlist file and is directly streamable over HTTPS. The file has the QuickTime video format is shot on iPhone X. After downloading this script, You will be able to use it as follows: $ bash create-vod-hls Īnd this will generate the following output renditions: Here is the shell script that you can use to create VOD HLS for a simple video. Visit this page to download binary for Linux, Windows, or OS X distro. FFmpeg is a cross-platform tool to record, convert and stream audio and video. I will drop a few links in the references section and you can take a read. I am not going to dive into the architecture and design of the protocol. This is achieved by encoding video at different bit rates and is sent to the receiver via an extended M3U playlist. HLS works by breaking down all the streams into a sequence of small HTTP-based file downloads, each chunk loading a small part of the overall video rather than streaming down the whole video. ![]() Update: Netflix and Youtube have moved to DASH. This process is widely implemented nowadays by almost all video streaming providers like Netflix, YouTube, Instagram, Facebook as well as Live conference providers like Skype, Zoom etcetera. We needed some way to automate the auto quality switches for the streaming videos based on the bandwidth of the end-users. Why we needed the HLS protocol? Well, Apple realized the need for it long before 2009 (When they released HLS) that conventional ways of streaming are not optimal and are way too slow. The repository link is at the end of the blog ) IntroductoryĪdaptive bitrate streaming. In a while, I will tell you how you can build a stand-alone server in NodeJS, which handles the transcoding, encoding and generating video chunk with differenct bit rates and hence generating an extended M3U playlist Although, I will put up reference links sometimes to keep certain things brief and will be open to any queries in the comment section. Because learning is better with doing.įYI, this is going to be a long article because the topic is technical and I tried to make it as much descriptive as possible. Well, I am about to explain each and everything in detail about video transcoding, encoding, and buffered streaming along with a simple implementation in NodeJS. ![]() These are the production-level answers and someone would like to bother only when the quality and experience of the service matters. But is it the solution? What about low bandwidths? Are you still buffering the video in high quality? What about bandwidth changes? Still loading the old low-quality video since your bandwidth has been increased. Yet, as developers get familiar with streaming service as nowadays, most of the media players offer the service to load data in chunks. It is a pretty basic, most widely yet moderately complicated feature that most apps and websites demand. Adaptive bitrate streaming HLS VOD service in NodeJS
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