在onPlayerPixelBuffer回调的数据转换后，视频不完整

[martenorton]

转换出来的图片不完整：

操作代码：

+(cv::Mat) matFromImageBuffer: (CVImageBufferRef) buffer {
    cv::Mat mat;
    CVPixelBufferLockBaseAddress(buffer, 0);

    size_t bytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(buffer, 0);
    void *address = CVPixelBufferGetBaseAddress(buffer);
    int width = (int)CVPixelBufferGetWidth(buffer);
    int height = (int)CVPixelBufferGetHeight(buffer);

    mat = cv::Mat(height * 1.5, width, CV_8UC1, address, bytesPerRow);
    cv::Mat mat_dst;
    cv::cvtColor(mat, mat_dst, CV_YUV2RGBA_NV12); //ok
    CVPixelBufferUnlockBaseAddress(buffer, 0);

    return mat_dst;
}

UIImage *resultImg = MatToUIImage(resultMat);
return resultImg;

[Tencent-Alice]

您好，根据您的描述，是ios端吗，提供下具体操作步骤和播放器sdk版本号 技术问题 欢迎交流 q2562367495 注明来意

[martenorton]

试了另外一个代码，一样的问题：

+ (UIImage *)imageFromYUVImageBuffer:(CVImageBufferRef)imageBuffer {
    CVPixelBufferLockBaseAddress(imageBuffer, 0);
    size_t bytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(imageBuffer, 0);
    size_t width = CVPixelBufferGetWidthOfPlane(imageBuffer, 0);
    size_t height = CVPixelBufferGetHeightOfPlane(imageBuffer, 0);
    void *lumaAddress = CVPixelBufferGetBaseAddress(imageBuffer);

    CGColorSpaceRef rgbSpace = CGColorSpaceCreateDeviceGray();
    CGContextRef context = CGBitmapContextCreate(lumaAddress, width, height, 8, bytesPerRow, rgbSpace, kCGRenderingIntentDefault );
    CGImageRef imageRef = CGBitmapContextCreateImage(context);
    CGContextRelease(context);
    CVPixelBufferUnlockBaseAddress(imageBuffer, 0);
    UIImage *image = [UIImage imageWithCGImage:imageRef];
    CGImageRelease(imageRef);
    return image;
}

[Tencent-Alice]

您好，如还是复现，请提供播放器sdk版本号，我们具体看下 技术问题 欢迎交流 q2562367495 注明来意

[martenorton]

情况还是出现，sdk版本号：8.4

[martenorton]

解决了，原来是格式错误，这样转就可以正常显示了：

+ (UIImage*)uiImageFromPixelBuffer:(CVPixelBufferRef)p {
    CIImage* ciImage = [CIImage imageWithCVPixelBuffer:p];

    CIContext* context = [CIContext contextWithOptions:@{kCIContextUseSoftwareRenderer : @(YES)}];

    CGRect rect = CGRectMake(0, 0, CVPixelBufferGetWidth(p), CVPixelBufferGetHeight(p));
    CGImageRef videoImage = [context createCGImage:ciImage fromRect:rect];

    UIImage* image = [UIImage imageWithCGImage:videoImage];
    CGImageRelease(videoImage);

    return image;
}