Method readByte

czxing/src/main/cpp/DecodeScheduler.cpp:61–80

}

std::vector<ScanResult>
DecodeScheduler::readByte(jbyte* bytes, int width, int height)
{
    LockGuard locker { m_decodeLock };
    LOGE("start readByte rowWidth = %d rowHeight = %d", width, height)

    cv::Mat src(height + height / 2, width, CV_8UC1, bytes);
    saveMat(src);

    // 转灰并更改格式
    cv::Mat gray;
    cvtColor(src, gray, cv::COLOR_YUV2GRAY_NV21);
    saveMat(gray, "gray");

    // 顺时针旋转90度图片，得到正常的图片（Android的后置摄像头获取的格式是横着的，需要旋转90度）
    rotate(gray, gray, cv::ROTATE_90_CLOCKWISE);

    LOGE("end readByte rowWidth = %d rowHeight = %d", width, height)
    return startDecode(gray);
}

std::vector<ScanResult> DecodeScheduler::readBitmap(JNIEnv* env, jobject bitmap)
{