public VideoDecoder(MemoryStream inputStream, VideoFormat format, int sampleLength)
{
this.format = format;
this.sampleLength = sampleLength;
this.inputStream = inputStream;
this.inputStream.Seek(0, SeekOrigin.Begin);
}
protected override void OnFormatChange(VideoFormat videoFormat)
{
if (videoFormat.PixelFormat != PixelFormatType.Format32bppArgb) throw new Exception();
VideoFormat = videoFormat;
if (OnFormatInit != null)
OnFormatInit(VideoFormat);
}
/// <summary>
/// Invoked when a video device reports a video format change.
/// </summary>
/// <param name="videoFormat">The new video format.</param>
protected override void OnFormatChange(VideoFormat videoFormat)
{
if (videoFormat.PixelFormat != PixelFormatType.Format32bppArgb)
{
throw new InvalidOperationException(String.Format("Only 32 Bit ARGB pixel format is supported, not {0}.", videoFormat.PixelFormat));
}
detector.ChangeFormat(videoFormat.PixelWidth, videoFormat.PixelHeight);
vidFormat = videoFormat;
}
protected abstract void OnFormatChange (VideoFormat videoFormat);
protected override void OnFormatChange(VideoFormat videoFormat)
{
this.aviFileWriter.StartFile((uint)videoFormat.Width, (uint)videoFormat.Height,
(uint)videoFormat.FramesPerSecond);
}
protected abstract void OnFormatChange(VideoFormat videoFormat);
protected override void OnFormatChange(VideoFormat format)
{
this.Format = format;
Debug.WriteLine(this.Format.FramesPerSecond.ToString());
}
protected override void OnFormatChange(VideoFormat videoFormat)
{
if (CapturedFormat != null)
{
throw new InvalidOperationException("Ошибка!");
}
this.CapturedFormat = new VideoFormat(PixelFormatType.Format32bppArgb, 640, 480, videoFormat.FramesPerSecond);
}
