Implementation method of converting C++ consortium into C# structure

The examples in this article mainly refer to MSDN: /zh-cn/library/ya9bz4ha%28v=vs.80%

Recently, because the C++ consortium was converted into a C# structure in the project, I checked a lot of information before the conversion was successful.

Note: For the official UNION example, my simple understanding is that this type of UNION practice can be appropriately replaced by operations such as IF ELSE.

Solve the problem: If you only receive video decoded data but never receive audio data, can you directly define the structure and use it to obtain video data.

/// &lt;summary&gt;
/// * @struct tagTFrameInfo_YUV420
/// * @brief The decoded frame information structure (including audio and video)/// * @attention If you only receive video decoded data but never receive audio data, then can you directly define the structure and use it to obtain video data/// * @Prototype definition:/// Decoded frame information structure (including audio and video)/// typedef struct tagTFrameInfo
/// {
/// BYTE m_byMediaType; // Media Type (PCM or YUV420)/// DWORD m_dwTimeStamp; // Timestamp///   union
///   {
/// BYTE m_byBitCount; // The number of color bits when it is YUV/// BYTE m_bStereo; // is the channel value when PCM///   };
///   union
///   {
/// WORD m_wVideoWidth; // Video frame width/// WORD m_wBitRate; // Sampling bit rate (such as 8000)///   };
///   union
///   {
/// WORD m_wVideoHeight;// Video frame width/// WORD m_wBand; // Number of bits sampled (such as 16)///   };
/// }TFrameInfo,*PFrameInfo; 
/// &lt;/summary&gt;
[StructLayout()]
public struct tagTFrameInfo_YUV420
{
  /// &lt;summary&gt;
  /// Media type (0:yuv420; 1:pcm; 2:rgb32: 3:uyvy; 4:YV12), pcm is audio  /// @Prototype: BYTE m_byMediaType; // Media type (1:PCM or 0:YUV420)  /// &lt;/summary&gt;
  public byte m_byMediaType;     /** Media type (0:yuv420; 1:pcm; 2:rgb32: 3:uyvy; 4:YV12), pcm is audio */

  /// &lt;summary&gt;
  /// Time stamp  /// @Prototype: DWORD m_dwTimeStamp; // Timestamp  /// &lt;/summary&gt;
  public UInt32 m_dwTimeStamp;     /** Timestamp */

  // YUV
  /// &lt;summary&gt;
  /// The number of color bits when YUV is  /// @Prototype: BYTE m_byBitCount; //The number of color bits when it is YUV  /// &lt;/summary&gt;
  public byte m_byBitCount;     /** The number of color bits when YUV */

  /// &lt;summary&gt;
  /// Video frame width  /// @Prototype: WORD m_wVideoWidth; //Video frame width  /// &lt;/summary&gt;
  public UInt16 m_wVideoWidth;     /** Video frame width */

  /// &lt;summary&gt;
  /// Video frame width  /// @Prototype: WORD m_wVideoHeight; //Video frame width  /// &lt;/summary&gt;
  public UInt16 m_wVideoHeight;     /** Video frame width */
}

Interested readers can debug and run this, hoping it will be helpful to everyone.