AR# 34435

LogiCORE IP Video Scaler v2.0 - How do I input 4:2:0 chroma data when using a Memory Data Source?

描述

How do I input 4:2:0 chroma data when using a Memory Data Source?  There does not seem to be any way to tell the core which line contains valid chroma data.

解决方案

When using a Memory Data Source, with 4:2:0 input data, the first line or top line of each frame that will be scaled must contain valid chroma data.  Then, every other line after that would be expected to contain valid chroma data.

So, if you count from the first line starting with 1, then the core expects valid chroma data on all the odd lines.

Line 1: YCb  YCr  YCb  YCr  YCb  YCr  YCb  YCr  etc.
Line 2: Yx    Yx    Yx    Yx    Yx    Yx    Yx    Yx    etc.
Line 3: YCb  YCr  YCb  YCr  YCb  YCr  YCb  YCr  etc.
Line 4: Yx    Yx    Yx    Yx    Yx    Yx    Yx    Yx    etc.
etc.

Please see (Xilinx Answer 31958) for a detailed list of LogiCORE IP Video Scaler Release Notes and Known Issues.

链接问答记录

主要问答记录

Answer Number 问答标题 问题版本 已解决问题的版本
31958 LogiCORE IP Video Scaler - Release Notes and Known Issues N/A N/A

相关答复记录

Answer Number 问答标题 问题版本 已解决问题的版本
31958 LogiCORE IP Video Scaler - Release Notes and Known Issues N/A N/A
AR# 34435
日期 05/23/2014
状态 Archive
Type 综合文章
IP