[MS-RDPEGFX] 3.3.8.3.2 YUV420p流组合 [英] [MS-RDPEGFX] 3.3.8.3.2 YUV420p Stream Combination

问题描述

您好！

我目前正在尝试为FreeRDP客户端添加AVC444格式支持。

I'm currently trying to add AVC444 format support for FreeRDP client.

关于如何将两个YUV420视图组合到一个YUV444视图的规范有点不清楚。

The specification is a bit unclear on how to combine the two YUV420 views to one YUV444 view.

* B4-B7的公式具有固定的x和y限制。这应该意味着宽度和高度（以及那些的半个版本）

* The formulae for B4-B7 have fixed x and y limits. Should that mean width and height (and the half versions of those)

* 2x，2y指数实际上意味着每个偶数和每个奇数点的2x + 1,2Y + 1是使用？

* Are the 2x,2y indices actually meaning that every even and the 2x+1,2Y+1 every odd point is used?

我问，因为生成的图像包含大约是原始图像大小两倍的伪像。

I'm asking because the resulting images contain artifacts that have roughly twice the size of the original image.

如果只是组合块作为左上角，下半部分和右上角，图像失真较少但并未完全消失。

If just combining the blocks as left upper corner, bottom half and right upper corner the image distortions are less but not entirely gone.

因此，如果有人可以摆脱一些光线对此，我们将非常感激。

So if anyone could shed some light on this, it would be very appreciated.

推荐答案

嗨Akallabeth，

Hi Akallabeth,

感谢您与Microsoft Open Specifications论坛联系。 已创建一个案例来跟踪请求。 团队成员将审核并回复更新。

Thank you for contacting the Microsoft Open Specifications forum.  A case has been created to track the request.  A member from the team will review and respond back with an update.

谢谢，

Nathan

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