public AddFrame ( |
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bmp | ||
Результат | void |
/// <summary>Copy a piece of video and wave sound int a new file</summary> /// <param name="newFileName">File name</param> /// <param name="startAtSecond">Start copying at second x</param> /// <param name="stopAtSecond">Stop copying at second y</param> /// <returns>AviManager for the new video</returns> public AviManager CopyTo(String newFileName, float startAtSecond, float stopAtSecond) { AviManager newFile = new AviManager(newFileName, false); try { //copy video stream VideoStream videoStream = GetVideoStream(); int startFrameIndex = (int)(videoStream.FrameRate * startAtSecond); int stopFrameIndex = (int)(videoStream.FrameRate * stopAtSecond); videoStream.GetFrameOpen(); Bitmap bmp = videoStream.GetBitmap(startFrameIndex); VideoStream newStream = newFile.AddVideoStream(false, videoStream.FrameRate, bmp); for (int n = startFrameIndex + 1; n <= stopFrameIndex; n++) { bmp = videoStream.GetBitmap(n); newStream.AddFrame(bmp); } videoStream.GetFrameClose(); //copy audio stream AudioStream waveStream = GetWaveStream(); Avi.AVISTREAMINFO streamInfo = new Avi.AVISTREAMINFO(); Avi.PCMWAVEFORMAT streamFormat = new Avi.PCMWAVEFORMAT(); int streamLength = 0; IntPtr ptrRawData = waveStream.GetStreamData( ref streamInfo, ref streamFormat, ref streamLength); int startByteIndex = (int)(startAtSecond * (float)(waveStream.CountSamplesPerSecond * streamFormat.nChannels * waveStream.CountBitsPerSample) / 8); int stopByteIndex = (int)(stopAtSecond * (float)(waveStream.CountSamplesPerSecond * streamFormat.nChannels * waveStream.CountBitsPerSample) / 8); IntPtr ptrWavePart = new IntPtr(ptrRawData.ToInt32() + startByteIndex); byte[] rawData = new byte[stopByteIndex - startByteIndex]; Marshal.Copy(ptrWavePart, rawData, 0, rawData.Length); Marshal.FreeHGlobal(ptrRawData); streamInfo.dwLength = rawData.Length; streamInfo.dwStart = 0; IntPtr unmanagedRawData = Marshal.AllocHGlobal(rawData.Length); Marshal.Copy(rawData, 0, unmanagedRawData, rawData.Length); newFile.AddAudioStream(unmanagedRawData, streamInfo, streamFormat, rawData.Length); Marshal.FreeHGlobal(unmanagedRawData); } catch (Exception ex) { newFile.Close(); throw ex; } return(newFile); }
/// <summary>Copy all frames into a new file</summary> /// <param name="fileName">Name of the new file</param> /// <param name="recompress">true: Compress the new stream</param> /// <returns>AviManager for the new file</returns> /// <remarks>Use this method if you want to append frames to an existing, compressed stream</remarks> public AviManager DecompressToNewFile(String fileName, bool recompress, out VideoStream newStream2) { AviManager newFile = new AviManager(fileName, false); this.GetFrameOpen(); Bitmap frame = GetBitmap(0); VideoStream newStream = newFile.AddVideoStream(recompress, frameRate, frame); frame.Dispose(); for (int n = 1; n < countFrames; n++) { frame = GetBitmap(n); newStream.AddFrame(frame); frame.Dispose(); } this.GetFrameClose(); newStream2 = newStream; return(newFile); }