编解码
系统概述
概述
Codec(Coder-Decoder)是指编解码器,用于压缩或解压缩视频、图像、音频等媒体数据;S100 Soc 中存在两种硬件编解码单元,分别是 VPU(Video process unit)和 JPU(Jpeg process unit),可提供4K@90fps 的视频编解码能力和4K@90fps 的图像编解码能力。
JPU 硬件特性
| HW Feature | Feature Indicator |
|---|---|
| HW number | 1 |
| maximum input | 8192x8192 |
| minimum input | 32x32 |
| performance | 4K@90fps |
| max instance | 64 |
| input image format | 4:0:0, 4:2:0, 4:2:2, 4:4:0, and 4:4:4 color format |
| output image format | 4:0:0, 4:2:0, 4:2:2, 4:4:0, and 4:4:4 color format |
| input crop | Supports |
| bitrate control | FIXQP(MJPEG) |
| rotation | 90, 180, 270 |
| mirror | Vertical, Horizontal, Vertical+Horizontal |
| quantization table | Supports Custom Settings |
| huffman table | Supports Custom Settings |