//捕获视频回调
private void VideoDataCaptureCallBack(UInt64 time, IntPtr data, UInt32 size, UInt32 width, UInt32 height, string json_extension)
{
Action action = () =>
{
MainForm.VideoFrame frame = new MainForm.VideoFrame(data, (int)width, (int)height, (int)size, (long)time);
ShowVideoFrame(_multiVChatFormGraphics_pb01, pb_multivchat_01.Width, pb_multivchat_01.Height, frame);
};
this.Invoke(action);
}
//收到视频帧回调函数
private static void VideoDataRecHandler(UInt64 time, IntPtr data, UInt32 size, UInt32 width, UInt32 height, string json_extension)
{
MainForm.VideoFrame frame = new MainForm.VideoFrame(data, (int)width, (int)height, (int)size, (long)time);
try
{
if (ReceiveVideoFrameHandler != null)
{
ReceiveVideoFrameHandler(_ownerFriendsListForm, new MainForm.VideoEventAgrs(frame));
}
}
catch
{
return;
}
}
//收到视频数据回调
private void VideoDataReceiveCallBack(UInt64 time, IntPtr data, UInt32 size, UInt32 width, UInt32 height, string json_extension)
{
MainForm.VideoFrame frame = new MainForm.VideoFrame(data, (int)width, (int)height, (int)size, (long)time);
string account = ParseCbJsonExtension(json_extension);
if (_multichatlist.Keys.Contains(account))
{
Debug.Assert(_multichatlist[account] != null);
Action action = () =>
{
ShowVideoFrame(_multichatlist[account], pb_multivchat_02.Width, pb_multivchat_02.Height, frame);
};
this.Invoke(action);
}
else
{
if (_multichatlist.Count < 4)
{
Graphics g = null;
//if (!_multichatlist.Values.Contains(_multiVChatFormGraphics_pb01))
//{
// g = _multiVChatFormGraphics_pb01;
//}
//else
if (!_multichatlist.Values.Contains(_multiVChatFormGraphics_pb02))
{
g = _multiVChatFormGraphics_pb02;
}
else if (!_multichatlist.Values.Contains(_multiVChatFormGraphics_pb03))
{
g = _multiVChatFormGraphics_pb03;
}
else if (!_multichatlist.Values.Contains(_multiVChatFormGraphics_pb04))
{
g = _multiVChatFormGraphics_pb04;
}
if (g != null)
{
_multichatlist.Add(account, g);
Action action = () =>
{
ShowVideoFrame(_multichatlist[account], pb_multivchat_02.Width, pb_multivchat_02.Height, frame);
};
this.Invoke(action);
}
}
}
}
public void ShowVideoFrame(MainForm.VideoFrame frame)
{
int w = pb_livingstream.Width;
int h = pb_livingstream.Height;
graphics.CompositingMode = CompositingMode.SourceCopy;
graphics.CompositingQuality = CompositingQuality.Default;
var stream = frame.GetBmpStream();
Bitmap img = new Bitmap(stream);
//等比例缩放
float sa = (float)w / frame.Width;
float sb = (float)h / frame.Height;
var scale = Math.Min(sa, sb);
var newWidth = frame.Width * scale;
var newHeight = frame.Height * scale;
stream.Dispose();
graphics.DrawImage(img, new Rectangle((int)(w - newWidth) / 2, (int)(h - newHeight) / 2, (int)newWidth, (int)newHeight),
new Rectangle(0, 0, img.Width, img.Height), GraphicsUnit.Pixel);
img.Dispose();
}
public VideoEventAgrs(VideoFrame frame)
{
Frame = frame;
}
