hzk-osd's Introduction

HZK-OSD

功能

根据指定字符串信息，从hzk16字体库中读取相应字符的点阵数据，然后写入RGB555格式的BMP图像中，可用于在视频中以BMP图像形式叠加字符OSD信息。本程序支持GB2312编码格式的汉字和英文字母等半角符号。

示例

字符信息

时间戳信息

说明

font 目录下为hzk16字体文件。 RGB555格式BMP图像格式为：

+------------------+------------------+----------------+
| BitmapFileHeader | BitmapInfoHeader |  BMP Data ...  |
+------------------+------------------+----------------+

常见的BMP图像其BMP Data数据为倒序的，即数据从最后一行开始，第一行的数据在文件最后。

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