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VIDCS 927 - Update CustomVideoRenderer sample to include filter and watermark #55

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VIDCS 927 - Update CustomVideoRenderer sample to include filter and watermark #55

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7b53601
Modified CustomVideoRenderer sample to include filters and watermark
sergioturgil-vonage May 23, 2023
4c34545
Removed test credentials
sergioturgil-vonage May 23, 2023
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15 changes: 15 additions & 0 deletions CustomVideoRenderer/CustomVideoRenderer.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
<Prefer32Bit>false</Prefer32Bit>
<AllowUnsafeBlocks>false</AllowUnsafeBlocks>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
Expand All @@ -37,6 +38,7 @@
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
<AllowUnsafeBlocks>false</AllowUnsafeBlocks>
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
Expand Down Expand Up @@ -105,6 +107,19 @@
<ItemGroup>
<None Include="App.config" />
</ItemGroup>
<ItemGroup>
<Content Include="Data\vonage-logo-white-456x100.png">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</Content>
<Content Include="Data\vonage-logo-white-913x200.png">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</Content>
</ItemGroup>
<ItemGroup>
<PackageReference Include="WriteableBitmapEx">
<Version>1.6.7</Version>
</PackageReference>
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
Other similar extension points exist, see Microsoft.Common.targets.
Expand Down
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36 changes: 19 additions & 17 deletions CustomVideoRenderer/MainWindow.xaml
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Expand Up @@ -5,22 +5,24 @@
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:CustomVideoRenderer" x:Class="CustomVideoRenderer.MainWindow"
mc:Ignorable="d"
Title="Screen Sharing Example" Height="350" Width="525" MinWidth="320" MinHeight="240">
<Grid>
<UniformGrid x:Name="SubscriberGrid" Rows="1" Columns="0">
</UniformGrid>
<local:SampleVideoRenderer x:Name="PublisherVideo" HorizontalAlignment="Right" Height="114" VerticalAlignment="Bottom" Width="184" Margin="0,0,10.429,10.143" BorderBrush="#FF5B1919" BorderThickness="1" >
<local:SampleVideoRenderer.Effect>
<DropShadowEffect Opacity="0.6"/>
</local:SampleVideoRenderer.Effect>
<local:SampleVideoRenderer.Background>
<ImageBrush Stretch="UniformToFill">
</ImageBrush>
</local:SampleVideoRenderer.Background>
</local:SampleVideoRenderer>
<Grid HorizontalAlignment="Left" Height="200" VerticalAlignment="Top" Width="100">
<Button x:Name="ConnectDisconnectButton" Content="Connect" HorizontalAlignment="Left" Margin="10,10,0,160" Width="80" Click="Connect_Click"/>
<Button x:Name="FilterButton" Content="Toggle filter" HorizontalAlignment="Left" Margin="10,50,0,120" Width="80" Click="FilterButton_Click"/>
Title="Screen Sharing Example" Height="720" Width="1280
" MinWidth="320" MinHeight="240">
<Grid>
<UniformGrid x:Name="SubscriberGrid" Rows="1" Columns="0">
</UniformGrid>
<local:SampleVideoRenderer x:Name="PublisherVideo" HorizontalAlignment="Right" Height="360" VerticalAlignment="Bottom" Width="640" Margin="0,0,10,10" BorderBrush="#FF5B1919" BorderThickness="1" >
<local:SampleVideoRenderer.Effect>
<DropShadowEffect Opacity="0.6"/>
</local:SampleVideoRenderer.Effect>
<local:SampleVideoRenderer.Background>
<ImageBrush Stretch="UniformToFill">
</ImageBrush>
</local:SampleVideoRenderer.Background>
</local:SampleVideoRenderer>
<Grid HorizontalAlignment="Left" Height="200" VerticalAlignment="Top" Width="100">
<Button x:Name="ConnectDisconnectButton" Content="Connect" HorizontalAlignment="Left" Margin="10,10,-15,160" Width="105" Click="Connect_Click"/>
<Button x:Name="FilterButton" Content="Toggle filter" HorizontalAlignment="Left" Margin="10,45,-15,125" Width="105" Click="FilterButton_Click"/>
<Button x:Name="WatermarkButton" Content="Toggle watermark" HorizontalAlignment="Left" Margin="10,80,-15,90" Width="105" Click="WatermarkButton_Click"/>
</Grid>
</Grid>
</Grid>
</Window>
11 changes: 11 additions & 0 deletions CustomVideoRenderer/MainWindow.xaml.cs
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Expand Up @@ -15,6 +15,7 @@ public partial class MainWindow : Window
private const string SESSION_ID = "";
private const string TOKEN = "";


VideoCapturer Capturer;
Session Session;
Publisher Publisher;
Expand Down Expand Up @@ -117,6 +118,7 @@ private void Session_StreamReceived(object sender, Session.StreamEventArgs e)

SampleVideoRenderer renderer = new SampleVideoRenderer();
renderer.EnableBlueFilter = PublisherVideo.EnableBlueFilter;
renderer.EnableWatermark = PublisherVideo.EnableWatermark;

SubscriberGrid.Children.Add(renderer);
UpdateGridSize(SubscriberGrid.Children.Count);
Expand Down Expand Up @@ -196,5 +198,14 @@ private void FilterButton_Click(object sender, RoutedEventArgs e)
((SampleVideoRenderer)subscriber.VideoRenderer).EnableBlueFilter = PublisherVideo.EnableBlueFilter;
}
}

private void WatermarkButton_Click(object sender, RoutedEventArgs e)
{
PublisherVideo.EnableWatermark = !PublisherVideo.EnableWatermark;
foreach (var subscriber in SubscriberByStream.Values)
{
((SampleVideoRenderer)subscriber.VideoRenderer).EnableWatermark = PublisherVideo.EnableWatermark;
}
}
}
}
113 changes: 113 additions & 0 deletions CustomVideoRenderer/SampleVideoRenderer.cs
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Expand Up @@ -42,6 +42,17 @@ public class SampleVideoRenderer : Control, IVideoRenderer
private WriteableBitmap VideoBitmap;

public bool EnableBlueFilter;
public bool EnableWatermark;
public bool AutoResize;

public WriteableBitmap Watermark
{
get; private set;
}
public float RelativeSize
{
get; set;
}

static SampleVideoRenderer()
{
Expand All @@ -53,6 +64,8 @@ public SampleVideoRenderer()
var brush = new ImageBrush();
brush.Stretch = Stretch.UniformToFill;
Background = brush;

Watermark = CreateFromResource("Data/vonage-logo-white-913x200.png");
}

public void RenderFrame(VideoFrame frame)
Expand All @@ -62,6 +75,9 @@ public void RenderFrame(VideoFrame frame)
{
try
{
WriteableBitmap watermark = Watermark;
Rect position = new Rect(10, 10, Watermark.PixelWidth, Watermark.PixelHeight);

if (frame.Width != FrameWidth || frame.Height != FrameHeight)
{
FrameWidth = frame.Width;
Expand All @@ -77,6 +93,27 @@ public void RenderFrame(VideoFrame frame)
{
throw new Exception("Please use an ImageBrush as background in the SampleVideoRenderer control");
}

if (AutoResize)
{
int w = Watermark.PixelWidth;
int h = Watermark.PixelHeight;

float ratio = (float)w / h;
if (ratio > 1)
{
w = (int)(FrameWidth * RelativeSize);
h = (int)(w / ratio);
}
else
{
h = (int)(FrameHeight * RelativeSize);
w = (int)(h * ratio);
}

watermark = ResizeWritableBitmap(Watermark, w, h);
position = new Rect(10, 10, w, h);
}
}

if (VideoBitmap != null)
Expand All @@ -100,6 +137,11 @@ public void RenderFrame(VideoFrame frame)
p += stride[0] - FrameWidth * 4;
}
}

if (EnableWatermark)
{
VideoBitmap.Blit(position, watermark, new Rect(0, 0, position.Width, position.Height));
}
}
VideoBitmap.AddDirtyRect(new Int32Rect(0, 0, FrameWidth, FrameHeight));
VideoBitmap.Unlock();
Expand All @@ -111,5 +153,76 @@ public void RenderFrame(VideoFrame frame)
}
}));
}

private WriteableBitmap CreateFromResource(string resource)
{
BitmapImage bi = new BitmapImage();
bi.BeginInit();
bi.UriSource = new Uri(resource, UriKind.RelativeOrAbsolute);
bi.EndInit();
return new WriteableBitmap(bi);
}

private static WriteableBitmap ResizeWritableBitmap(WriteableBitmap wBitmap, int reqWidth, int reqHeight)
{
int Stride = wBitmap.PixelWidth * ((wBitmap.Format.BitsPerPixel + 7) / 8);
int NumPixels = Stride * wBitmap.PixelHeight;
ushort[] ArrayOfPixels = new ushort[NumPixels];


wBitmap.CopyPixels(ArrayOfPixels, Stride, 0);

int OriWidth = (int)wBitmap.PixelWidth;
int OriHeight = (int)wBitmap.PixelHeight;

double nXFactor = (double)OriWidth / (double)reqWidth;
double nYFactor = (double)OriHeight / (double)reqHeight;

double fraction_x, fraction_y, one_minus_x, one_minus_y;
int ceil_x, ceil_y, floor_x, floor_y;

ushort pix1, pix2, pix3, pix4;
int nStride = reqWidth * ((wBitmap.Format.BitsPerPixel + 7) / 8);
int nNumPixels = reqWidth * reqHeight;
ushort[] newArrayOfPixels = new ushort[nNumPixels];

for (int y = 0; y < reqHeight; y++)
{
for (int x = 0; x < reqWidth; x++)
{
// Setup
floor_x = (int)Math.Floor(x * nXFactor);
floor_y = (int)Math.Floor(y * nYFactor);

ceil_x = floor_x + 1;
if (ceil_x >= OriWidth) ceil_x = floor_x;

ceil_y = floor_y + 1;
if (ceil_y >= OriHeight) ceil_y = floor_y;

fraction_x = x * nXFactor - floor_x;
fraction_y = y * nYFactor - floor_y;

one_minus_x = 1.0 - fraction_x;
one_minus_y = 1.0 - fraction_y;

pix1 = ArrayOfPixels[floor_x + floor_y * OriWidth];
pix2 = ArrayOfPixels[ceil_x + floor_y * OriWidth];
pix3 = ArrayOfPixels[floor_x + ceil_y * OriWidth];
pix4 = ArrayOfPixels[ceil_x + ceil_y * OriWidth];

ushort g1 = (ushort)(one_minus_x * pix1 + fraction_x * pix2);
ushort g2 = (ushort)(one_minus_x * pix3 + fraction_x * pix4);
ushort g = (ushort)(one_minus_y * (double)(g1) + fraction_y * (double)(g2));
newArrayOfPixels[y * reqWidth + x] = g;
}
}

WriteableBitmap newWBitmap = new WriteableBitmap(reqWidth, reqHeight, 96, 96, PixelFormats.Gray16, null);
Int32Rect Imagerect = new Int32Rect(0, 0, reqWidth, reqHeight);
int newStride = reqWidth * ((PixelFormats.Gray16.BitsPerPixel + 7) / 8);
newWBitmap.WritePixels(Imagerect, newArrayOfPixels, newStride, 0);
return newWBitmap;
}
}
}
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Binary file added ...mVideoRenderer/packages/WriteableBitmapEx.1.6.7/lib/NetCore45/WriteableBitmapEx.WinRT.dll
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