HLS is a streaming protocol currently used by many streaming platforms and websites. Therefore, HLS is well known to everyone. However, what you may not know is that you may be using the MPEG-DASH protocol to watch videos online. Similarly, MPEG-DASH is also one of the common methods used by people to transmit video streams over the Internet. Among them, one of the characteristics of the MPEG-DASH protocol is that the transmitted videos are often protected by DRM. If you don’t know MPEG-DASH yet, you can read this tutorial in detail. This tutorial will specifically answer questions such as what is MPEG-DASH? How does MPEG-DASH work? and how to find MPEG-DASH streams. In addition, if you want to download MPD videos with DRM, you can carefully read the CleverGet MPD Downloader I introduced and know how to use it.
Outline
Part 1: What is MPEG-DASH
Now, let's take a look at the questions and answers about MPEG-DASH.
1. What is MPEG-DASH
Similar to HLS, MPEG-DASH is also a streaming protocol based on HTTP, but it mainly adopts a dynamic adaptive method. Therefore, HLS mainly uses .m3u8 files to transmit streaming data, while MPEG-DASH mainly uses MPD files to transmit streaming data. In addition, unlike HLS, which can only use H.264 or H.265 for encoding, MPEG-DASH allows people to use any encoding standard, so MPEG-DASH is currently an international standard transmission protocol. In terms of supported devices, although most devices support the playback of videos transmitted by MPEG-DASH, iPhones and other iOS devices and Mac devices do not support the MPEG-DASH protocol, so we cannot use these devices to play MPD videos. On the other hand, MPEG-DASH mainly divides video files into multiple segments before transmitting them, and the length of each video segment is usually between 2 and 10 seconds, but the optimal length is 2 to 4 seconds.
2. How does MPEG-DASH work
After understanding the basic concept of MPEG-DASH, let's take a look at how MPEG-DASH works. In general, the working principle of MPEG-DASH is mainly divided into three steps: encoding and segmentation, delivery, decoding and playback.
Encoding and segmentation: The server where the transmitted video is located will divide the video file into multiple segments, and the video length of each segment is only a few seconds. Then, the server will create an index file according to the order of these segment files and encode each segment. This index file is like a directory, which can help the player play these segment files in sequence.
Delivery: When we start playing MPD videos online, the server will start to transmit these segmented segment files through the Internet and finally transmit these segment files to our devices.
Decoding and playback: After receiving these segment files, the media player in our device will decode these segment files and then play these segment files according to the encoding order of each segment in the index file.
The above is the specific process of how does MPEG-DASH work.
3. Devices and browsers that support MPEG-DASH streaming
We need to note that not all devices and browsers support the MPEG-DASH protocol. For example, iPhones and other iOS devices do not support playing videos transmitted using the MPEG-DASH protocol. So, I will introduce several commonly used devices and browsers as examples, all of which can support the MPEG-DASH protocol and play MPD videos.
1. VLC
VLC is a free, open-source, cross-platform media player that supports transmission protocols including HLS and MPEG-DASH, and can decode and play media files transmitted by the Internet. At present, most versions of VLC provide free decoding and encoding libraries, which we can use to play various videos.
2. Android Exoplayer
Android Exoplayer supports multiple streaming protocols, including HLS and MPEG-DASH. Therefore, Android Exoplayer can play various videos and audio. In addition, Android Exoplayer also has programs such as default audio and video rendering, which can provide users with various video playback services more efficiently.
3. Google Chrome
Google Chrome was developed by Google and launched in 2008. It is a professional web browser. Because it has the function of online video playback, Google Chrome supports multiple streaming protocols including HLS and MPEG-DASH, and can easily encode and decode videos. Therefore, Google Chrome is often used by people to play MPD videos online.
4. Firefox
Firefox is another commonly used web browser. Because Firefox is now free and open source, it supports multiple operating systems, including Windows, macOS and Linux. Of course, because it has the function of playing online videos, Firefox can handle various requests in a timely manner and decode and play video clips encoded according to the MPEG-DASH transmission protocol.
Part 2: How to Find MPEG-DASH Streams
Similar to finding HLS streams, we can also find MPEG-DASH streams in the browser. First, use the browser to play the video transmitted using the MPEG-DASH protocol online. Then, press the "CTRL+SHIFT+I" keys on the keyboard to enter the developer tools page in the browser. Finally, click the "Network" option. At this time, the browser will display all resources requested when or after loading this video playback page. Therefore, when the browser plays the video transmitted using the MPEG-DASH protocol online, we can see all the MPEG-DASH video segments requested by the browser.
Part 3: How to Download MPD Videos with DRM
The MPEG-DASH protocol mainly uses MPD files as manifest files, so MPD files often contain all the information of the transmitted video. Videos transmitted according to the MPEG-DASH protocol are often protected by DRM. Therefore, if you want to download MPD videos with DRM, you need the help of a DRM MPD download tool. CleverGet MPD Downloader is one of the most popular MPD video download tools, which can easily download DRM-protected MPD videos from DASH MPD streaming websites losslessly. With just a few simple clicks, we can use CleverGet MPD Downloader to download DRM-protected MPD videos as MP4 or MKV format videos with 1080P or above. What's even more surprising is that CleverGet MPD Downloader can identify and remove advertisements in videos when downloading MPD videos. After you install CleverGet MPD Downloader, you can download video from MPD file by using the following steps:

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- Download on-demand MPD videos from MPEG-DASH streaming websites in clicks
- Download MPD videos in up to 1080p quality to MP4/MKV files
- Preserve desired multi-language captions and audio tracks
- Get Ads-free MPD videos for playing offline without interruptions
Step 1: Set output directory
Run CleverGet MPD Downloader. You can click the "..." button in the upper right corner of the CleverGet client, and then click the "Settings" option. Then, in the "Settings" window that automatically pops up from CleverGet, you can set the output file directory and the client language, etc.
Step 2: Open the target video page
Enter the URL of the MPD video you want to download in the address bar above the CleverGet client, and then directly use CleverGet's internal browser to access this page.
Step 3: Play the target MPD video
Use CleverGet's internal browser to play this MPD video online. Then, CleverGet MPD Downloader will automatically start parsing this MPD video. After the parsing is completed, CleverGet MPD Downloader will use a "Download" window to display all the information of this MPD video.
Step 4: Download the MPD video
You can set the output video format, subtitles, audio and other information, and then click the "Download" button to command CleverGet MPD Downloader to download this MPD video.
Note:
- CleverGet opposes all user behaviors regarding the use of downloaded videos for sharing or profit. Therefore, CleverGet is not responsible for any legal consequences caused by users.
FAQs
Regarding the information about CleverGet MPD downloader, you may be interested in the following questions.
1. Currently, which streaming platforms use the MPEG-DASH protocol to transmit videos?
Currently popular streaming platforms, such as YouTube, Netflix and Hulu, all use the MPEG-DASH protocol to transmit videos online, so that video encoding can be freely switched between high-quality and low-quality.
2. What standard transmission protocol is MPEG-DASH?
As an international standard transmission protocol, MPEG-DASH adopts the open standard defined by MPEG. Therefore, the MPEG-DASH transmission protocol can often be decoded by most devices and streaming media players. However, because Apple uses the proprietary HLS protocol, most iPhone and Mac devices cannot play videos transmitted according to the MPEG-DASH transmission protocol.
3. What container format does MPEG-DASH mainly use?
Unlike HLS, which usually uses the MPEG-2 transport stream container format or .ts, MPEG-DASH uses the MP4 format or .mp4.
4. What is the role of the MPD file in MPEG-DASH?
In the MPEG-DASH protocol, the MPD file is often a manifest file that contains all the information needed to display a given content.
Conclusion
This tutorial explains many issues related to MPEG-DASH in detail. Fortunately, we know that although MPEG-DASH is different from HLS, it is also one of the most commonly used streaming methods. And, we can also use the best MPD video download tool, CleverGet MPD Downloader, to help us download MPD videos, just like downloading HLS videos.



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