FFMediaToolkit is a cross-platform video decoder/encoder library for .NET that uses FFmpeg native libraries. It supports video frames extraction, reading stream metadata and creating videos from bitmaps in any format supported by FFmpeg.
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Video.AddFrame(FrameToImageData(ImageData)) causes program to exit #125
I have a C# Windows .net6 application where I want to capture video to a file.
I initialize a file like this:
var file = MediaBuilder.CreateContainer(outputFilePath).WithVideo(settings).Create();
In the Capture_NewFrame eventhandler (Aforge.Video.DirectShow) I save the incoming frames like this:
System.Drawing.Bitmap bitmap = eventArgs.Frame;
var rect = new System.Drawing.Rectangle(System.Drawing.Point.Empty, bitmap.Size);
var bitLock = bitmap.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
var bitmapData = ImageData.FromPointer(bitLock.Scan0, ImagePixelFormat.Bgr24, bitmap.Size);
file.Video.AddFrame(bitmapData);
bitmap.UnlockBits(bitLock);
I have two cams: a Fantech Luminous C30 USB cam and an Integrated webcam in my Dell laptop.
The Fantech works fine; no issues.
But when I use the integrated webcam, the application quits unexpectedly when it reaches the call file.Video.AddFrame(bitmapData);
The code is in a try/catch block, but that isn't triggered. The application just quits.
The bitmapData for the integrated cam is Bgr24, 1280 x 720, Stride 3840, IsPooled = false, 2764800 bytes,
For the working Fantech cam the bitmapData is Bgr24, 1920 x 1080, Stride 5760, IsPooled = false, 6220800 bytes.
During the same Capture_NewFrame eventhandler I also show the incoming bitmap on an Image, which works fine for both cams.
I have a C# Windows .net6 application where I want to capture video to a file. I initialize a file like this:
var file = MediaBuilder.CreateContainer(outputFilePath).WithVideo(settings).Create();In the Capture_NewFrame eventhandler (Aforge.Video.DirectShow) I save the incoming frames like this:
I have two cams: a Fantech Luminous C30 USB cam and an Integrated webcam in my Dell laptop. The Fantech works fine; no issues. But when I use the integrated webcam, the application quits unexpectedly when it reaches the call file.Video.AddFrame(bitmapData); The code is in a try/catch block, but that isn't triggered. The application just quits.
The bitmapData for the integrated cam is Bgr24, 1280 x 720, Stride 3840, IsPooled = false, 2764800 bytes, For the working Fantech cam the bitmapData is Bgr24, 1920 x 1080, Stride 5760, IsPooled = false, 6220800 bytes.
During the same Capture_NewFrame eventhandler I also show the incoming bitmap on an Image, which works fine for both cams.
In the event viewer I see this:
Faulting application name: TestCarMaster.exe, version: 0.7.0.0, time stamp: 0x6331eb0e Faulting module name: swscale-6.dll, version: 6.8.112.0, time stamp: 0x6368faa4 Exception code: 0xc0000005 Fault offset: 0x000000000004b3d6 Faulting process ID: 0x1d87c Faulting application start time: 0x01d8f2bad24f37e1 Faulting application path: C:\Repos\Wessel\Projects\TestCar\TestCarMaster\bin\Debug\net6.0-windows\TestCarMaster.exe Faulting module path: C:\Repos\Wessel\Projects\TestCar\TestCarMaster\bin\Debug\net6.0-windows\ffmpeg\swscale-6.dll Report ID: d8c8ee0c-38e1-47ab-ac72-9e4d23d950fd Faulting package full name: Faulting package-relative application ID: