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Adaptive Bitrate Streaming
Last updated: 2024-09-11 14:42:07
Overview
Adaptive bitrate streaming (ABR streaming) involves creating audio/video files with various bitrates. After using adaptive bitrate streaming, a player can dynamically select and play back the most appropriate bitrate based on the viewer’s current bandwidth. VOD can convert videos to mainstream adaptive bitrate streaming formats such as HLS and DASH.
Capability | Description |
Supported formats | HLS and DASH. |
Ultra fast start | An adaptive bitrate stream contains multiple resolutions. The player generally starts playback at a low resolution to help playback start faster. |
Smart resolution switch | The player dynamically selects the most appropriate resolution for playback based on the current bandwidth. |
Zero-lag switch | The frames of each stream are aligned, ensuring zero-lag when switching between streams with different resolutions. |
High video/audio quality | Up to 8K FHD resolution is supported. Stereo is supported. HDR is supported. |
Advanced encoding technologies | You can use advanced encoding formats such as H.265, H.266, and AV1 and Top Speed Codec transcoding to reduce the video bitrate. |
Encryption and DRM | Media encryption and DRM schemes such as Widevine and FairPlay all depend on adaptive bitrate streaming. |
Note:
Differences between adaptive bitrate streaming and transcoding:
An adaptive bitrate streaming URL contains outputs in multiple resolutions, while a transcoding URL contains an output in only one resolution.
With adaptive bitrate streaming, the player switches to the optimal resolution in real time based on current network conditions. Transcoding outputs do not support intelligent resolution switch.
Use Cases
Use Case | Description |
Online education | For copyright protection, online education platforms often need to encrypt their video courses or enable DRM. |
Video website | Video websites have rich video resources, and adaptive bitrate streaming can deliver a smoother viewing experience. |
Online TV | Online TV platforms may need to protect their resources. In addition, viewers may want to switch to a higher resolution while watching a video. |
How to Use
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