/// <summary>
/// Convert video frame to <paramref name="dstFormat"/> with Bgr24 mat
/// <para>
/// NOTE: only support CV_8U3 Mat!!
/// </para>
/// </summary>
/// <param name="mat">must bge format</param>
/// <param name="dstFormat">video frame format</param>
/// <returns></returns>
public static VideoFrame ToVideoFrame(this Mat mat, AVPixelFormat dstFormat = AVPixelFormat.AV_PIX_FMT_BGR24)
{
if (dstFormat != AVPixelFormat.AV_PIX_FMT_BGR24)
{
using (PixelConverter converter = new PixelConverter(dstFormat, mat.Width, mat.Height))
{
return(converter.ConvertFrame(MatToVideoFrame(mat)));
}
}
return(MatToVideoFrame(mat));
}
private static Mat VideoFrameToMat(VideoFrame frame)
{
if ((AVPixelFormat)frame.AVFrame.format != AVPixelFormat.AV_PIX_FMT_BGRA)
{
using (VideoFrame dstFrame = new VideoFrame(AVPixelFormat.AV_PIX_FMT_BGRA, frame.AVFrame.width, frame.AVFrame.height))
using (PixelConverter converter = new PixelConverter(dstFrame))
{
return(BgraToMat(converter.ConvertFrame(frame)));
}
}
return(BgraToMat(frame));
}