1. Resolution:
-High-definition encoder: A high-definition encoder usually refers to an encoder that supports the resolution of 720p( 1280×720 pixels) or1080p (1920×1080 pixels). It is suitable for the encoding and transmission of common TV, movies and other media content.
-Ultra-clear encoder (2K): Ultra-clear encoder usually refers to an encoder that supports 2K(2560× 1440 pixels) resolution. Provides a higher resolution than HD, and is suitable for large-screen TVs, cinemas and other scenes that require higher image quality.
-Ultra HD encoder (4K): Ultra HD encoder usually refers to an encoder that supports 4K(3840×2 160 pixels) or higher resolution. Provides a higher resolution than ultra-clear, and is suitable for large-screen TVs, cinemas and other scenes that require higher image quality.
2. Coding efficiency:
-High-definition encoder: High-definition encoders usually adopt mature coding algorithms, such as H.264/AVC, which can achieve high coding efficiency and reduce the requirements for video file size and transmission bandwidth on the premise of ensuring a certain image quality.
-Ultra-clear encoder (2K): Compared with high-definition encoder, ultra-clear encoder improves coding efficiency, and adopts more advanced coding algorithm, such as H.265/HEVC, which can achieve higher compression ratio under the same image quality and reduce the requirements for video file size and transmission bandwidth.
-Ultra-high definition encoder (4K): Compared with ultra-high definition encoder, ultra-high definition encoder improves coding efficiency and adopts more advanced coding algorithm, such as H.265/HEVC, which can achieve higher compression ratio with the same image quality and reduce the requirements for video file size and transmission bandwidth.
3. Application scenario:
-High-definition encoder: High-definition encoder is suitable for the encoding and transmission of ordinary TV, movies and other media content, and is widely used in TV stations, radio stations, network video platforms and other fields.
-Ultra-clear encoder (2K): Ultra-clear encoder is suitable for large-screen TV, cinema and other scenes that need higher picture quality, and is widely used in high-end TV, cinema, VR/AR and other fields.
-Ultra-high-definition encoder (4K): Ultra-high-definition encoder is suitable for large-screen TV, cinema and other scenes that need higher picture quality, and is widely used in high-end TV, cinema, VR/AR and other fields.
To sum up, high-definition encoder, ultra-clear encoder and ultra-high-definition encoder are different in resolution and coding efficiency, and are suitable for different application scenarios. With the continuous progress of technology, the performance and effect of the encoder will be improved to meet the user's demand for high-quality video.