一、使用none实现yuv420快速转换为yuv422 #include <arm_neon.h> static vs_int32_t yuv420_yuv422_conver(vs_uint8_t *p_yuv420_y, vs_uint8_t *p_yuv420_uv, vs_uint32_t yuv420_y_stride, vs_uint32_t yuv420_uv_stride, v