The terms “transcoding” and “encoding” are thrown around regularly when it comes to online video streaming. Both of these processes are very important to make live streaming possible and to maintain the video quality on both live and on-demand content.
In this post, we’re going to clear up any confusion between the two by breaking down both cloud video encoding and transcoding.
We will look at video transcoding on Dacast in detail, with a special focus on how to rapidly get up-and-running with cloud video transcoding for your business.
Table of Contents
- What is Cloud Video Encoding?
- What is Cloud Video Transcoding?
- Encoding vs. Transcoding
- The Importance of Video Transcoding and Encoding for Business
- How to Access Professional Cloud Video Transcoding Tools
- How to Encode/Transcode Videos on Dacast
What is Cloud Video Encoding?
Video encoding is a process that converts a video file from one format to another. For the sake of online streaming, an encoder takes RAW video files from the camera and turns them into digital video files.
RAW video files are bulky since they include every single frame that was shot, including duplicates. The encoder throws out unnecessary frames, and thus a small, streamable digital video file is created.
Through this process, videos become viewable across different OTT platforms and devices.
For additional details on how encoding works, the most popular codecs, and more, check out our definitive guide to video encoding.
What is Cloud Video Transcoding?
“Transcoding” is how we refer to the process of creating several “renditions” of the same video. Each rendition is transcoded to different sizes, allowing you to offer your video in different qualities.
These renditions are used for multi-bitrate streaming in an adaptive bitrate player.
Transcoding paired with an adaptive bitrate player will automatically select the appropriate rendition for each of your viewers based on the strength of their internet.
When to Use Encoding and Transcoding
Both on-demand encoding and transcoding involve changing a video file in one way or another. Just remember that encoding is responsible for changing the format of the file, and transcoding is responsible for creating multiple sizes of the same file.
When it comes to professional broadcasting with Dacast, encoding is exclusive to live streaming, but transcoding is used for both live streaming and VOD content.
Live content is fed directly from the camera to the encoder of your choice to be prepared to broadcast in real-time. Many encoders have built-in transcoding technology, so the encoding is on-demand. Transcoding, on the other hand, involves both the process of encoding and decoding, and is more complex than encoding.
However, when it comes to VOD content, it is done a little differently. Transcoding can be done before or after uploading the video content to your online video platform (OVP), like Dacast.
You can run your content through an encoder before uploading it, or you can use your OVP’s built-in cloud transcoder.
The Importance of Video Transcoding and Encoding for Broadcasting
There are two main benefits of video transcoding for professional broadcasters and SMBs: maximizing the video player and ensuring compatibility for playback.
1. Maximize Video Quality for Viewers
With transcoding, you can combine multiple renditions of your videos with an adaptive bitrate video player. That way, you can ensure the best possible quality and uninterrupted streaming for each user.
Viewers with fast internet connections, for example, can receive very high-quality videos. Meanwhile, those with slower or intermittent signals can access lower-quality videos. Though this content won’t look as good, multi-bitrate streaming greatly reduces buffering problems.
This process happens automatically, with no user interaction necessary. The video player will detect the viewer’s internet speed, and deliver them the correct quality by default. This entire process fully depends on video transcoding.
2. Ensure Compatibility and Playback Across All Devices
Also, encoding is relevant when the original uploaded format of the video cannot play correctly.
The standards specs for online video today are MP4 file type, H.264 video codec, and AAC audio codec. You should stick to these specs for your uploads when possible. If you can’t, cloud transcoding helps convert other filetypes (like AVI, MOV, and MP3) to these standards.
With Dacast, as with other live streaming platforms, you must transcode any non-natively supported videos that you upload to your account. Through this process, our platform sets up all transcoded files for maximum compatibility with any device.
How to Access Professional Cloud Video Transcoding Tools
By now, we’ve established what transcoding is, how it works, and what the benefits are. The next step is to access live transcoding software and create a workflow for your digital media content.
Generally speaking, there are two ways to transcode video: locally or in the cloud. There are benefits and drawbacks to each approach.
In most cases, local video transcoding is slower. It also results in multiple files that you must upload and manage separately. However, it’s also a free approach to video transcoding.
When you have a large and growing content library, want to deliver multi-bitrate adaptive streaming video, or don’t want to tie-up in-house machines on time- and processor-intensive transcoding, you’re better off looking for cloud video transcoding tools.
How to Encode/Transcode Videos on Dacast
The Dacast platform offers a variety of professional tools to host, secure, deliver, analyze, and monetize online video—both video on demand and live streams.
This includes several tools for cloud transcoding. With Dacast’s newest video transcoding setup, we make it quicker, easier, and more efficient to transcode your files for online distribution. Here are three ways by which Dacast makes it easy to transcode your video files.
1. Manual Transcoding for VOD Uploads
Whenever you upload a VOD file to Dacast, a popup will allow you to choose between a “RAW Upload” and “Autoencoding.” Using a raw upload is fine as long as your video conforms to the MP4 file type, H.264 video codec, and AAC audio codec.
However, you may wish to quickly transcode this video it into a variety of quality levels.
You can do this by navigating to the video in question via the Dacast dashboard, then selecting the “multi-bitrate” tab. From this menu, you can begin transcoding your master file into a variety of renditions in just a single click.
2. Auto-Encoding for VOD Uploads
If you want to automate your transcoding, you can select the auto-encoding option. This will automatically re-encode your master file into compatible formats (MP4, H.264, AAC).
3. Ingest Recipes
To further automate, our advanced video hosting platform allows you to create “ingest recipes.” This allows you to designate a set of rendition/quality levels that can be applied to all your videos. At that point, each video that is uploaded will be automatically transcoded into these different qualities.
You can create multiple ingest recipes. For example, if you receive files in different sizes and formats, you can create an ingest recipe for each. Whenever you upload files, it’s easy to select the ingest recipe to apply on a batch level or for each video individually.
Please note that encoding a file adds a processing time before that content is ready for playback. While short and small videos tend to encode within 20 or 30 minutes, longer and larger files may take up to an hour to process. Therefore, if it’s essential to get a VOD online immediately, you may want to transcode in-house beforehand.
Different Dacast plans come with different transcoding limits. Please contact us for information on limitations on your specific account.
The difference between encoding and transcoding can be difficult to understand, but these two processes are essential to delivering high-quality video streams
Just remember that encoding deals with format and transcoding deal with size.
The Dacast video hosting platform makes cloud video transcoding possible, so you can rest assured that your files are sized for the best possible playback experience.
Not yet streaming with Dacast, and ready to give our platform a try? Sign up for our 30-day free trial to test out our service for yourself! This free trial includes 2 GB of transcoding capabilities.
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By Max Wilbert