The DSC was introduced in its original form back in 2014 and although it has become increasingly popular and evolved, its codecs have had to do the same at the same time. So much so that DSC has become the first general industry to put data pressure on screens.
Within the standard we should distinguish three specific types that will differ from the application and the codecs itself: DSC 1.1, DSC 1.2 and VDC-M 1.1. We've talked in detail about DSC, what it is and what its features are, but about it VDC-M We haven't said anything yet.
Basically it is another VESA standard that provides a high level of compression, keeping the quality of the material without loss and which is mainly aimed at low usage with the mobile market. It is very useful for accuracy because its high pressure against the DSC and is included within the definition MIPI Integration Display (DSI-2), so it saves power and does not reduce the final adjustment on the screen.
DSC 1.1 Displaying Display Codecs: features
- 30 bit color at 3.75: 1 (8 bpp).
- 24 bit color at 3: 1 (8 bpp).
- Low IC confusion.
- Compatibility with previous versions -> DSC 1.x.
- Encoder and decoder are defined.
- Including standard C language.
- She is independent of the deduction framework.
- Limited support per color >> 10/8/12.
- HDR Support.
- Combining RGB with YCbCr 4: 4: 4 native.
- It is supported on -> MIPI DSI 1.2, DSI-2 1.0 and VESA eDP 1.4b.
DSC 1.2a: codecs and symbols
- 30 bit color at 3.75: 1 (8 bpp).
- 24 bit color at 3: 1 (8 bpp).
- Low IC confusion.
- Compatibility with previous versions -> DSC 1.x.
- Encoder and decoder are defined.
- Including standard C language.
- She is independent of the deduction framework.
- Partial support per color >> 10/8/12/14/16
- HDR Support.
- Combining RGB with YCbCr 4: 4: 4 native.
- Encoding YCbCr 4: 2: 0 or 4: 2: 2 native.
- Accepted Standards -> HDMI 2.1 and VESA DP 1.4a
VDC-M 1.1: codecs and symbols
- 30 bit color at 5: 1 (6 bpp).
- 24 bit color at 4: 1 (6 bpp).
- IC Medium Hardness.
- Compatibility with previous versions -> No.
- Encoder and decoder are defined.
- Including standard C language.
- She is independent of the deduction framework.
- Limited support per color >> 10/8/12.
- HDR Support.
- Combining RGB with YCbCr 4: 4: 4 native.
- Encoding YCbCr 4: 2: 0 or 4: 2: 2 native.
- Standards accepted -> MIPI DSI-2 1.1
As we can see, each codec has its own characteristics, where many are shared, but where reasonable, they are not adopted by the same standards of connection. As we have seen, the most advanced is undoubtedly the DSC 1.2a, which is included in the HDMI 2.1 and DisplayPort 1.4a, which come in large quantities on both monitors, such as television and graphics cards.
In addition, the new generation is buzzing with SONY and Microsoft and will feature these new social media platforms to be able to play 4K at a decent amount of hertz and without loss of quality, so we're talking about the level of current and future days.
