AVIStreamReadFormat() private method

private AVIStreamReadFormat ( IntPtr aviStream, Int32 lPos, BITMAPINFOHEADER &lpFormat, Int32 &cbFormat ) : int
aviStream System.IntPtr
lPos System.Int32
lpFormat BITMAPINFOHEADER
cbFormat System.Int32
return int
Avi Class Documentation
Beispiel #1
0
        /// <summary>Read the stream's format information</summary>
        /// <returns>PCMWAVEFORMAT</returns>
        public Avi.PCMWAVEFORMAT GetFormat()
        {
            Avi.PCMWAVEFORMAT format = new Avi.PCMWAVEFORMAT();
            int size   = Marshal.SizeOf(format);
            int result = Avi.AVIStreamReadFormat(aviStream, 0, ref format, ref size);

            return(format);
        }
Beispiel #2
0
        /// <summary>Initialize an AudioStream for an existing stream</summary>
        /// <param name="aviFile">The file that contains the stream</param>
        /// <param name="aviStream">An IAVISTREAM from [aviFile]</param>
        public AudioStream(int aviFile, IntPtr aviStream)
        {
            this.aviFile   = aviFile;
            this.aviStream = aviStream;

            int size = Marshal.SizeOf(waveFormat);

            Avi.AVIStreamReadFormat(aviStream, 0, ref waveFormat, ref size);
            Avi.AVISTREAMINFO streamInfo = GetStreamInfo(aviStream);
        }
Beispiel #3
0
        /// <summary>Initialize a VideoStream for an existing stream</summary>
        /// <param name="aviFile">The file that contains the stream</param>
        /// <param name="aviStream">An IAVISTREAM from [aviFile]</param>
        public VideoStream(int aviFile, IntPtr aviStream)
        {
            this.aviFile   = aviFile;
            this.aviStream = aviStream;

            Avi.BITMAPINFOHEADER bih = new Avi.BITMAPINFOHEADER();
            int size = Marshal.SizeOf(bih);

            Avi.AVIStreamReadFormat(aviStream, 0, ref bih, ref size);
            Avi.AVISTREAMINFO streamInfo = GetStreamInfo(aviStream);

            this.frameRate         = (float)streamInfo.dwRate / (float)streamInfo.dwScale;
            this.width             = (int)streamInfo.rcFrame.right;
            this.height            = (int)streamInfo.rcFrame.bottom;
            this.frameSize         = bih.biSizeImage;
            this.countBitsPerPixel = bih.biBitCount;
            this.firstFrame        = Avi.AVIStreamStart(aviStream.ToInt32());
            this.countFrames       = Avi.AVIStreamLength(aviStream.ToInt32());
        }