/// <summary>
/// Saves the image from the video decoder
/// </summary>
public void SaveImage()
{
if (_frame == null)
{
return;
}
if (_frameBitmap == null)
{
_frameBitmap = VideoHelper.CreateBitmap(ref _frame);
}
else
{
VideoHelper.UpdateBitmap(ref _frameBitmap, ref _frame);
}
if (!Directory.Exists(DataPath))
{
System.IO.Directory.CreateDirectory(DataPath);
}
_frameBitmap.Save(DataPath + _frameTag + _frameNumber.ToString("000000") + ".png");
if (!Directory.Exists(LivePath))
{
System.IO.Directory.CreateDirectory(LivePath);
}
_frameBitmap.Save(LivePath + "live.png");
}
private unsafe void Button_Test_Click(object sender, RoutedEventArgs e)
{
Bitmap bitmap = CreateTestBitmap();
AVFrame *inFrame = FFmpegInvoke.avcodec_alloc_frame();
if (inFrame == null)
{
throw new Exception("Could not allocate video frame");
}
inFrame->width = bitmap.Width;
inFrame->height = bitmap.Height;
inFrame->format = (int)AVPixelFormat.AV_PIX_FMT_BGR24;
int ret1 = FFmpegInvoke.av_image_alloc(&inFrame->data_0, inFrame->linesize, bitmap.Width, bitmap.Height, AVPixelFormat.AV_PIX_FMT_BGR24, 32);
if (ret1 < 0)
{
throw new Exception("Could not allocate raw picture buffer");
}
VideoHelper.UpdateFrame(inFrame, bitmap);
VideoConverter converterToYuv = new VideoConverter(AVPixelFormat.AV_PIX_FMT_YUV420P);
var data = converterToYuv.ConvertFrame(inFrame);
var bitmap2 = VideoHelper.CreateBitmap(data, bitmap.Width, bitmap.Height);
SetImageSource(bitmap2);
}
void timerElapsed(object sender, EventArgs e)
{
if (_frame != null)
{
analyze(VideoHelper.CreateBitmap(ref _frame));
}
}
private unsafe void SocketThread()
{
while (true)
{
var bytesReceived = _socket.Receive(_receiveBuffer);
if (bytesReceived == 0)
{
Thread.Sleep(1); continue;
}
var arr = new byte[bytesReceived];
Array.Copy(_receiveBuffer, arr, bytesReceived);
fixed(byte *pData = &arr[0])
{
_avPacket.data = pData;
_avPacket.size = bytesReceived;
AVFrame *pFrame;
if (_decoder.TryDecode(ref _avPacket, out pFrame))
{
byte[] data = _converter.ConvertFrame(pFrame);
var bitmap = VideoHelper.CreateBitmap(data, pFrame->width, pFrame->height);
UpdateImage(bitmap);
}
}
}
}
/// <summary>
/// Render the latest video frame to the vidoeFrame PictureBox
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void timerVideoUpdate_Tick(object sender, EventArgs e)
{
if (frame == null || frameNumber == frame.Number)
{
return;
}
frameNumber = frame.Number;
if (frameBitmap == null)
{
frameBitmap = VideoHelper.CreateBitmap(ref frame);
}
else
{
VideoHelper.UpdateBitmap(ref frameBitmap, ref frame);
}
videoFrame.Image = frameBitmap;
}
void tmrVideoUpdate_Tick(object sender, EventArgs e)
{
if (_frame == null || _frameNumber == _frame.Number)
{
return;
}
_frameNumber = _frame.Number;
if (_frameBitmap == null)
{
_frameBitmap = VideoHelper.CreateBitmap(ref _frame);
}
else
{
VideoHelper.UpdateBitmap(ref _frameBitmap, ref _frame);
}
//pbVideo.Image = _frameBitmap;
imgVideo.Source = VideoHelper.ConvertToBitmapImage(ref _frameBitmap);
}
