private void DrawFrame(VideoBuffer videoBuffer, PlaybackStatistics statistics)
{
Bitmap bmp = img as Bitmap;
BitmapData bd = null;
try
{
bd = bmp.LockBits(new System.Drawing.Rectangle(0, 0, bmp.Width, bmp.Height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);//bgra32
using (var md = videoBuffer.Lock())
{
CopyMemory(bd.Scan0, md.value.scan0Ptr, videoBuff.stride * videoBuff.height);
//bitmap.WritePixels(
// new Int32Rect(0, 0, videoBuffer.width, videoBuffer.height),
// md.value.scan0Ptr, videoBuffer.size, videoBuffer.stride,
// 0, 0
//);
}
}
catch (Exception err)
{
//errBox.Text = err.Message;
Debug.Print("DrawFrame:: " + err.Message);
}
finally
{
bmp.UnlockBits(bd);
}
imageBox.Image = bmp;
}
private void DrawFrame(VideoBuffer videoBuffer)
{
if (isRecording)
{
Bitmap bitmap = new Bitmap(videoBuffer.width, videoBuffer.height);
BitmapData bitmapData = null;
try
{
bitmapData = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
using (var md = videoBuffer.Lock())
{
CopyMemory(bitmapData.Scan0, md.value.scan0Ptr, buffer.stride * buffer.height);
}
}
catch (Exception e)
{
}
finally
{
bitmap.UnlockBits(bitmapData);
}
bitmaps.Enqueue(bitmap);
//bitmaps.Add(bitmap);
}
}
/// <summary>
/// Initiate rendering loop
/// </summary>
/// <param name="videoBuffer"></param>
public void InitPlayback(VideoBuffer videoBuffer)
{
if (videoBuffer == null)
{
throw new ArgumentNullException("videoBufferDescription");
}
VerifyAccess();
TimeSpan renderinterval;
try {
int fps = AppDefaults.visualSettings.ui_video_rendering_fps;
fps = (fps <= 0 || fps > 100) ? 100 : fps;
renderinterval = TimeSpan.FromMilliseconds(1000 / fps);
} catch {
renderinterval = TimeSpan.FromMilliseconds(1000 / 30);
}
var cancellationTokenSource = new CancellationTokenSource();
renderSubscription.Disposable = Disposable.Create(() => {
cancellationTokenSource.Cancel();
});
var bitmap = PrepareForRendering(videoBuffer);
var cancellationToken = cancellationTokenSource.Token;
var dispatcher = this.Dispatcher; //Application.Current.Dispatcher;
var renderingTask = Task.Factory.StartNew(() => {
var statistics = PlaybackStatistics.Start();
using (videoBuffer.Lock()) {
try {
//start rendering loop
while (!cancellationToken.IsCancellationRequested)
{
using (var processingEvent = new ManualResetEventSlim(false)) {
dispatcher.BeginInvoke(() => {
using (Disposable.Create(() => processingEvent.Set())) {
if (!cancellationToken.IsCancellationRequested)
{
//update statisitc info
statistics.Update(videoBuffer);
//render farme to screen
DrawFrame(bitmap, videoBuffer, statistics);
}
}
});
processingEvent.Wait(cancellationToken);
}
cancellationToken.WaitHandle.WaitOne(renderinterval);
}
} catch (OperationCanceledException) {
//swallow exception
} catch (Exception error) {
dbg.Error(error);
}
}
}, cancellationToken);
}
public void Update(VideoBuffer videoBuffer)
{
//update rendering times history
renderTimes.Enqueue(Stopwatch.GetTimestamp());
//evaluate averange rendering fps
avgRenderingFps = renderTimes.length / SecondsFromTicks(renderTimes.last - renderTimes.first);
//update no signal indicator
using (var md = videoBuffer.Lock()) {
signal = md.value.signal;
md.value.signal = 0;
}
UpdateNoSignal();
}
public void Update(VideoBuffer videoBuffer)
{
//update rendering times history
renderTimes.Enqueue(Stopwatch.GetTimestamp());
//evaluate averange rendering fps
avgRenderingFps = CalculateAvgFpsFromTimes(renderTimes);
//update no signal indicator
using (var md = videoBuffer.Lock()) {
signal = md.value.signal;
md.value.signal = 0;
}
UpdateNoSignal();
//evaluate averange rendering fps
avgDecodingFps = CalculateAvgFpsFromTimes(decodeTimes);
}
private void DrawFrame(WriteableBitmap bitmap, VideoBuffer videoBuffer, PlaybackStatistics statistics)
{
VerifyAccess();
if (isPaused)
{
return;
}
using (var md = videoBuffer.Lock()) {
// internally calls lock\unlock, uses MILUtilities.MILCopyPixelBuffer
bitmap.WritePixels(
new Int32Rect(0, 0, videoBuffer.width, videoBuffer.height),
md.value.scan0Ptr, videoBuffer.size, videoBuffer.stride,
0, 0
);
}
renderingFps.Text = String.Format("rendering fps: {0:F1}", statistics.avgRenderingFps);
decodingFps.Text = String.Format("decoding fps: {0:F1}", statistics.avgDecodingFps);
noSignalPanel.Visibility =
statistics.isNoSignal ? Visibility.Visible : Visibility.Hidden;
}
private void DrawFrame(WriteableBitmap bitmap, VideoBuffer videoBuffer, double averangeFps)
{
VerifyAccess();
if (isPaused)
{
return;
}
bitmap.Lock();
try {
using (var ptr = videoBuffer.Lock()) {
bitmap.WritePixels(
new Int32Rect(0, 0, videoBuffer.width, videoBuffer.height),
ptr.value, videoBuffer.size, videoBuffer.stride,
0, 0
);
}
} finally {
bitmap.Unlock();
}
fpsCaption.Text = averangeFps.ToString("F1");
}
private void DrawFrame(VideoBuffer videoBuffer /*, PlaybackStatistics statistics*/)
{
Bitmap bitmap = image as Bitmap;
BitmapData bitmapData = null;
try
{
bitmapData = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
using (var md = videoBuffer.Lock())
{
CopyMemory(bitmapData.Scan0, md.value.scan0Ptr, this.videoBuffer.stride * this.videoBuffer.height);
}
}
catch (Exception e)
{
//errBox.Text = err.Message;
}
finally
{
bitmap.UnlockBits(bitmapData);
}
pictureBox.Image = bitmap;
}
//private WriteableBitmap PrepareForRendering(VideoBuffer videoBuffer) {
// PixelFormat pixelFormat;
// if (videoBuffer.pixelFormat == PixFrmt.rgb24) {
// pixelFormat = PixelFormats.Rgb24;
// } else if (videoBuffer.pixelFormat == PixFrmt.bgra32) {
// pixelFormat = PixelFormats.Bgra32;
// } else if (videoBuffer.pixelFormat == PixFrmt.bgr24) {
// pixelFormat = PixelFormats.Bgr24;
// } else {
// pixelFormat = PixelFormats.Rgb24;
// }
// var bitmap = new WriteableBitmap(
// videoBuffer.width, videoBuffer.height,
// 96, 96,
// pixelFormat, null
// );
// _imgVIew.Source = bitmap;
// return bitmap;
//}
void InitPlayback(VideoBuffer videoBuffer, bool isInitial)
{
if (videoBuffer == null)
{
dbg.Break();
log.WriteError("video buffer is null");
}
TimeSpan renderinterval;
try
{
int fps = 30;
fps = (fps <= 0 || fps > 100) ? 100 : fps;
renderinterval = TimeSpan.FromMilliseconds(1000 / fps);
}
catch
{
renderinterval = TimeSpan.FromMilliseconds(1000 / 30);
}
var cancellationTokenSource = new CancellationTokenSource();
playerDisposables.Add(Disposable.Create(() =>
{
cancellationTokenSource.Cancel();
}));
//var bitmap = PrepareForRendering(videoBuffer);
img = new Bitmap(videoBuffer.width, videoBuffer.height);
imageBox.Image = img;
var cancellationToken = cancellationTokenSource.Token;
var renderingTask = Task.Factory.StartNew(delegate
{
var statistics = PlaybackStatistics.Start(Restart, isInitial);
using (videoBuffer.Lock())
{
try
{
//start rendering loop
while (!cancellationToken.IsCancellationRequested)
{
using (var processingEvent = new ManualResetEventSlim(false))
{
var dispOp = disp.BeginInvoke((MethodInvoker) delegate
{
using (Disposable.Create(() => processingEvent.Set()))
{
if (!cancellationToken.IsCancellationRequested)
{
//update statisitc info
statistics.Update(videoBuffer);
//render farme to screen
//DrawFrame(bitmap, videoBuffer, statistics);
DrawFrame(videoBuffer, statistics);
}
}
});
processingEvent.Wait(cancellationToken);
}
cancellationToken.WaitHandle.WaitOne(renderinterval);
}
}
catch (OperationCanceledException error)
{
//swallow exception
Debug.Print("OperationCanceledException:: " + error.Message);
}
catch (Exception error)
{
//dbg.Break();
//log.WriteError(error);
Debug.Print("InitPlayback:: " + error.Message);
}
finally
{
}
}
}, cancellationToken);
}
private void InitializePlayer(string videoUri, NetworkCredential account, Size size = default(Size))
{
OnConnect(this, null);
dispatcher = Dispatcher.CurrentDispatcher;
player = new HostedPlayer();
disposables.Add(player);
if (size != default(Size))
{
buffer = new VideoBuffer(size.Width, size.Height, PixFrmt.bgra32);
}
else
{
buffer = new VideoBuffer(720, 576, PixFrmt.bgra32);
}
player.SetVideoBuffer(buffer);
MediaStreamInfo.Transport transport = MediaStreamInfo.Transport.Tcp;
MediaStreamInfo streamInfo = null;
if (account != null)
{
streamInfo = new MediaStreamInfo(videoUri, transport, new UserNameToken(account.UserName, account.Password));
}
else
{
streamInfo = new MediaStreamInfo(videoUri, transport);
}
disposables.Add(player.Play(streamInfo, this));
TimeSpan renderInterval;
try
{
int fps = 30;
fps = (fps <= 0 || fps > 100) ? 100 : fps;
renderInterval = TimeSpan.FromMilliseconds(1000 / fps);
}
catch
{
renderInterval = TimeSpan.FromMilliseconds(1000 / 30);
}
var cancellationTokenSource = new CancellationTokenSource();
disposables.Add(Disposable.Create(() => {
cancellationTokenSource.Cancel();
}));
var cancellationToken = cancellationTokenSource.Token;
var renderingTask = Task.Factory.StartNew(() => {
using (buffer.Lock())
{
try
{
while (!cancellationToken.IsCancellationRequested)
{
using (var processingEvent = new ManualResetEventSlim(false))
{
var dispOp = dispatcher.BeginInvoke(() => {
using (Disposable.Create(() => processingEvent.Set()))
{
if (!cancellationToken.IsCancellationRequested)
{
DrawFrame(buffer);
}
}
});
processingEvent.Wait(cancellationToken);
}
cancellationToken.WaitHandle.WaitOne(renderInterval);
}
}
catch (OperationCanceledException)
{
//swallow exception
}
catch (Exception e)
{
}
finally
{
}
}
}, cancellationToken);
}
private void InitPlayback(VideoBuffer videoBuffer, bool isInitial)
{
if (videoBuffer == null)
{
dbg.Break();
log.WriteError("video buffer is null");
}
TimeSpan renderInterval;
try
{
int fps = 30;
fps = (fps <= 0 || fps > 100) ? 100 : fps;
renderInterval = TimeSpan.FromMilliseconds(1000 / fps);
}
catch
{
renderInterval = TimeSpan.FromMilliseconds(1000 / 30);
}
var cancellationTokenSource = new CancellationTokenSource();
playerDisposables.Add(Disposable.Create(() => {
cancellationTokenSource.Cancel();
}));
image = new Bitmap(videoBuffer.width, videoBuffer.height);
pictureBox.Image = image;
var cancellationToken = cancellationTokenSource.Token;
var renderingTask = Task.Factory.StartNew(delegate {
//var statistics = PlaybackStatistics.Start(Restart, isInitial);
using (videoBuffer.Lock())
{
try
{
//start rendering loop
while (!cancellationToken.IsCancellationRequested)
{
using (var processingEvent = new ManualResetEventSlim(false))
{
var dispOp = dispatcher.BeginInvoke(() => {
using (Disposable.Create(() => processingEvent.Set()))
{
if (!cancellationToken.IsCancellationRequested)
{
DrawFrame(videoBuffer);
}
}
});
processingEvent.Wait(cancellationToken);
}
cancellationToken.WaitHandle.WaitOne(renderInterval);
}
}
catch (OperationCanceledException)
{
//swallow exception
}
catch (Exception error)
{
dbg.Break();
log.WriteError(error);
}
finally
{
}
}
}, cancellationToken);
}
/// <summary>
/// Start Playback
/// </summary>
/// <param name="res"></param>
public void InitPlayback(VideoBuffer videoBuffer)
{
if (videoBuffer == null)
{
throw new ArgumentNullException("videoBufferDescription");
}
VerifyAccess();
TimeSpan renderinterval;
try {
int fps = AppDefaults.visualSettings.ui_video_rendering_fps;
fps = (fps <= 0 || fps > 100) ? 100 : fps;
renderinterval = TimeSpan.FromMilliseconds(1000 / fps);
} catch {
renderinterval = TimeSpan.FromMilliseconds(1000 / 30);
}
var cancellationTokenSource = new CancellationTokenSource();
renderSubscription.Disposable = Disposable.Create(() => {
cancellationTokenSource.Cancel();
});
var bitmap = PrepareForRendering(videoBuffer);
var cancellationToken = cancellationTokenSource.Token;
var dispatcher = Application.Current.Dispatcher;
var renderingTask = Task.Factory.StartNew(() => {
var statistics = new CircularBuffer <long>(100);
using (videoBuffer.Lock()) {
try {
//start rendering loop
while (!cancellationToken.IsCancellationRequested)
{
using (var processingEvent = new ManualResetEventSlim(false)) {
dispatcher.BeginInvoke(() => {
using (Disposable.Create(() => processingEvent.Set())) {
if (!cancellationToken.IsCancellationRequested)
{
//update statisitc info
statistics.Enqueue(Stopwatch.GetTimestamp());
//evaluate averange rendering fps
var ticksEllapsed = statistics.last - statistics.first;
double avgFps = 0;
if (ticksEllapsed > 0)
{
avgFps = ((double)statistics.length * (double)Stopwatch.Frequency) / (double)ticksEllapsed;
}
//render farme to screen
DrawFrame(bitmap, videoBuffer, avgFps);
}
}
});
processingEvent.Wait(cancellationToken);
}
cancellationToken.WaitHandle.WaitOne(renderinterval);
}
} catch (OperationCanceledException) {
//swallow exception
} catch (Exception error) {
dbg.Error(error);
}
}
}, cancellationToken);
}
