本帖最后由 simms01 于 2017-3-2 10:49 编辑

按照论坛上的各位大神 的例子 移植TJPG

我用于测试的图片是一张 32*32大小的 全黑 或全白jpg图

如果我在 #define JD_FORMAT  0 /* Output pixel format 0:RGB888 (3 BYTE/pix), 1:RGB565 (1 WORD/pix)
选 RGB 888 数据数据正常的 全黑是 0xFFFFFF  全白  0x000000

但是选RGB565 出来的却是如下数据  
FF FF 00 00 07 FF 00 00 00 1F 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

但是 jd_decomp(&jd, STM32_out_func, scale); 返回是 0 也就是解码成功了

scale 因子=0