public void PopulateBITMAPINFOHEADER32(ref Win32.BITMAPINFOHEADER bmih) { bmih.Init(); bmih.biPlanes = 1; bmih.biBitCount = 32; bmih.biHeight = height; bmih.biWidth = width; bmih.biSizeImage = (uint)(4 * width * height); }
public void PopulateBITMAPINFOHEADER24(ref Win32.BITMAPINFOHEADER bmih) { bmih.Init(); bmih.biPlanes = 1; bmih.biBitCount = 24; bmih.biHeight = height; //pad up width so that we end up with multiple of 4 bytes pitch = width * 3; pitch = (pitch + 3) & ~3; pitch_add = pitch - width * 3; bmih.biWidth = width; bmih.biSizeImage = (uint)(pitch * height); }
public void OpenFile(string destPath, Parameters parameters, CodecToken videoCodecToken) { this.parameters = parameters; this.currVideoCodecToken = videoCodecToken; //TODO - try creating the file once first before we let vfw botch it up? //open the avi output file handle if (File.Exists(destPath)) { File.Delete(destPath); } if (Win32.FAILED(Win32.AVIFileOpenW(ref pAviFile, destPath, Win32.OpenFileStyle.OF_CREATE | Win32.OpenFileStyle.OF_WRITE, 0))) { throw new InvalidOperationException("Couldnt open dest path for avi file: " + destPath); } //initialize the video stream Win32.AVISTREAMINFOW vidstream_header = new Win32.AVISTREAMINFOW(); Win32.BITMAPINFOHEADER bmih = new Win32.BITMAPINFOHEADER(); parameters.PopulateBITMAPINFOHEADER24(ref bmih); vidstream_header.fccType = Win32.mmioFOURCC("vids"); vidstream_header.dwRate = parameters.fps; vidstream_header.dwScale = parameters.fps_scale; vidstream_header.dwSuggestedBufferSize = (int)bmih.biSizeImage; if (Win32.FAILED(Win32.AVIFileCreateStreamW(pAviFile, out pAviRawVideoStream, ref vidstream_header))) { CloseFile(); throw new InvalidOperationException("Failed opening raw video stream. Not sure how this could happen"); } //initialize audio stream Win32.AVISTREAMINFOW audstream_header = new Win32.AVISTREAMINFOW(); Win32.WAVEFORMATEX wfex = new Win32.WAVEFORMATEX(); parameters.PopulateWAVEFORMATEX(ref wfex); audstream_header.fccType = Win32.mmioFOURCC("auds"); audstream_header.dwQuality = -1; audstream_header.dwScale = wfex.nBlockAlign; audstream_header.dwRate = (int)wfex.nAvgBytesPerSec; audstream_header.dwSampleSize = wfex.nBlockAlign; audstream_header.dwInitialFrames = 1; // ??? optimal value? if (Win32.FAILED(Win32.AVIFileCreateStreamW(pAviFile, out pAviRawAudioStream, ref audstream_header))) { CloseFile(); throw new InvalidOperationException("Failed opening raw audio stream. Not sure how this could happen"); } outStatus = new OutputStatus(); IsOpen = true; }
/// <summary> /// begin recording /// </summary> public void OpenStreams() { if (currVideoCodecToken == null) { throw new InvalidOperationException("set a video codec token before opening the streams!"); } // open compressed video stream Win32.AVICOMPRESSOPTIONS opts = new Win32.AVICOMPRESSOPTIONS(); currVideoCodecToken.AllocateToAVICOMPRESSOPTIONS(ref opts); bool failed = Win32.FAILED(Win32.AVIMakeCompressedStream(out pAviCompressedVideoStream, pAviRawVideoStream, ref opts, IntPtr.Zero)); CodecToken.DeallocateAVICOMPRESSOPTIONS(ref opts); if (failed) { CloseStreams(); throw new InvalidOperationException("Failed making compressed video stream"); } // set the compressed video stream input format Win32.BITMAPINFOHEADER bmih = new Win32.BITMAPINFOHEADER(); if (bit32) { parameters.PopulateBITMAPINFOHEADER32(ref bmih); } else { parameters.PopulateBITMAPINFOHEADER24(ref bmih); } if (Win32.FAILED(Win32.AVIStreamSetFormat(pAviCompressedVideoStream, 0, ref bmih, Marshal.SizeOf(bmih)))) { bit32 = true; // we'll try again CloseStreams(); throw new InvalidOperationException("Failed setting compressed video stream input format"); } // set audio stream input format Win32.WAVEFORMATEX wfex = new Win32.WAVEFORMATEX(); parameters.PopulateWAVEFORMATEX(ref wfex); if (Win32.FAILED(Win32.AVIStreamSetFormat(pAviRawAudioStream, 0, ref wfex, Marshal.SizeOf(wfex)))) { CloseStreams(); throw new InvalidOperationException("Failed setting raw audio stream input format"); } }
/// <summary> /// begin recording /// </summary> public void OpenStreams() { if (currVideoCodecToken == null) throw new InvalidOperationException("set a video codec token before opening the streams!"); //open compressed video stream if (Win32.FAILED(Win32.AVIMakeCompressedStream(out pAviCompressedVideoStream, pAviRawVideoStream, ref currVideoCodecToken.comprOptions, IntPtr.Zero))) { CloseStreams(); throw new InvalidOperationException("Failed making compressed video stream"); } //set the compressed video stream input format Win32.BITMAPINFOHEADER bmih = new Win32.BITMAPINFOHEADER(); if (bit32) parameters.PopulateBITMAPINFOHEADER32(ref bmih); else parameters.PopulateBITMAPINFOHEADER24(ref bmih); if (Win32.FAILED(Win32.AVIStreamSetFormat(pAviCompressedVideoStream, 0, ref bmih, Marshal.SizeOf(bmih)))) { bit32 = true; // we'll try again CloseStreams(); throw new InvalidOperationException("Failed setting compressed video stream input format"); } //set audio stream input format Win32.WAVEFORMATEX wfex = new Win32.WAVEFORMATEX(); parameters.PopulateWAVEFORMATEX(ref wfex); if (Win32.FAILED(Win32.AVIStreamSetFormat(pAviRawAudioStream, 0, ref wfex, Marshal.SizeOf(wfex)))) { CloseStreams(); throw new InvalidOperationException("Failed setting raw audio stream input format"); } }
public void OpenFile(string destPath, Parameters parameters, CodecToken videoCodecToken) { this.parameters = parameters; this.currVideoCodecToken = videoCodecToken; //TODO - try creating the file once first before we let vfw botch it up? //open the avi output file handle if (File.Exists(destPath)) File.Delete(destPath); if (Win32.FAILED(Win32.AVIFileOpenW(ref pAviFile, destPath, Win32.OpenFileStyle.OF_CREATE | Win32.OpenFileStyle.OF_WRITE, 0))) throw new InvalidOperationException("Couldnt open dest path for avi file: " + destPath); //initialize the video stream Win32.AVISTREAMINFOW vidstream_header = new Win32.AVISTREAMINFOW(); Win32.BITMAPINFOHEADER bmih = new Win32.BITMAPINFOHEADER(); parameters.PopulateBITMAPINFOHEADER24(ref bmih); vidstream_header.fccType = Win32.mmioFOURCC("vids"); vidstream_header.dwRate = parameters.fps; vidstream_header.dwScale = parameters.fps_scale; vidstream_header.dwSuggestedBufferSize = (int)bmih.biSizeImage; if (Win32.FAILED(Win32.AVIFileCreateStreamW(pAviFile, out pAviRawVideoStream, ref vidstream_header))) { CloseFile(); throw new InvalidOperationException("Failed opening raw video stream. Not sure how this could happen"); } //initialize audio stream Win32.AVISTREAMINFOW audstream_header = new Win32.AVISTREAMINFOW(); Win32.WAVEFORMATEX wfex = new Win32.WAVEFORMATEX(); parameters.PopulateWAVEFORMATEX(ref wfex); audstream_header.fccType = Win32.mmioFOURCC("auds"); audstream_header.dwQuality = -1; audstream_header.dwScale = wfex.nBlockAlign; audstream_header.dwRate = (int)wfex.nAvgBytesPerSec; audstream_header.dwSampleSize = wfex.nBlockAlign; audstream_header.dwInitialFrames = 1; // ??? optimal value? if (Win32.FAILED(Win32.AVIFileCreateStreamW(pAviFile, out pAviRawAudioStream, ref audstream_header))) { CloseFile(); throw new InvalidOperationException("Failed opening raw audio stream. Not sure how this could happen"); } outStatus = new OutputStatus(); IsOpen = true; }