/// <summary>
/// 创建流文件
/// </summary>
private void CreateStream()
{
AVISTREAMINFOW strhdr = new AVISTREAMINFOW();
strhdr.fccType = _fccType;
strhdr.fccHandler = _fccHandler;
strhdr.dwFlags = 0;
strhdr.dwCaps = 0;
strhdr.wPriority = 0;
strhdr.wLanguage = 0;
strhdr.dwScale = 1;
strhdr.dwRate = _frameRate;
strhdr.dwStart = 0;
strhdr.dwLength = 0;
strhdr.dwInitialFrames = 0;
strhdr.dwSuggestedBufferSize = _height * _stride;
strhdr.dwQuality = 0xffffffff;
strhdr.dwSampleSize = 0;
strhdr.rect_top = 0;
strhdr.rect_left = 0;
strhdr.rect_bottom = _height;
strhdr.rect_right = _width;
strhdr.dwEditCount = 0;
strhdr.dwFormatChangeCount = 0;
strhdr.szName0 = 0;
strhdr.szName1 = 0;
int hr = AVIFileCreateStream(_pfile, out _ps, ref strhdr);
if (hr != 0)
{
throw new AviException("AVIFileCreateStream");
}
}
/**
* Creates an AVI stream
* @return void
* @private
*/
private void CreateStream()
{
AVISTREAMINFOW strhdr = new AVISTREAMINFOW();
strhdr.fccType = fccType_;
strhdr.fccHandler = fccHandler_;
strhdr.dwFlags = 0;
strhdr.dwCaps = 0;
strhdr.wPriority = 0;
strhdr.wLanguage = 0;
strhdr.dwScale = 1;
strhdr.dwRate = frameRate_; // Frames per Second
strhdr.dwStart = 0;
strhdr.dwLength = 0;
strhdr.dwInitialFrames = 0;
strhdr.dwSuggestedBufferSize = height_ * stride_;
strhdr.dwQuality = 0xffffffff; //-1; // Use default
strhdr.dwSampleSize = 0;
strhdr.rect_top = 0;
strhdr.rect_left = 0;
strhdr.rect_bottom = height_;
strhdr.rect_right = width_;
strhdr.dwEditCount = 0;
strhdr.dwFormatChangeCount = 0;
strhdr.szName0 = 0;
strhdr.szName1 = 0;
int hr = AVIFileCreateStream(pfile_, out ps_, ref strhdr);
if (hr != 0)
{
throw new AviException("AVIFileCreateStream");
}
}
private static extern int AVIFileCreateStream(int ptr_pfile, out IntPtr ptr_ptr_avi, ref AVISTREAMINFOW ptr_streaminfo);
private void CreateStream() {
AVISTREAMINFOW strhdr = new AVISTREAMINFOW();
strhdr.fccType = fccType_;
strhdr.fccHandler = fccHandler_;
strhdr.dwFlags = 0;
strhdr.dwCaps = 0;
strhdr.wPriority = 0;
strhdr.wLanguage = 0;
strhdr.dwScale = 1;
strhdr.dwRate = frameRate_; // Frames per Second
strhdr.dwStart = 0;
strhdr.dwLength = 0;
strhdr.dwInitialFrames = 0;
strhdr.dwSuggestedBufferSize = height_ * stride_;
strhdr.dwQuality = 0xffffffff; //-1; // Use default
strhdr.dwSampleSize = 0;
strhdr.rect_top = 0;
strhdr.rect_left = 0;
strhdr.rect_bottom = height_;
strhdr.rect_right = width_;
strhdr.dwEditCount = 0;
strhdr.dwFormatChangeCount = 0;
strhdr.szName0 = 0;
strhdr.szName1 = 0;
int hr = AVIFileCreateStream(pfile_, out ps_, ref strhdr);
if (hr != 0) {
throw new AviException("AVIFileCreateStream");
}
}
private static extern int AVIFileCreateStream(
int ptr_pfile, out IntPtr ptr_ptr_avi, ref AVISTREAMINFOW ptr_streaminfo);
private static extern int AVIFileCreateStream(IntPtr pfile, out IntPtr ppavi, ref AVISTREAMINFOW psi);
/// <summary>Initialize the AviFile.</summary>
/// <param name="path">The path to the output file.</param>
/// <param name="frameRate">The frame rate for the video.</param>
/// <param name="width">The width of the video.</param>
/// <param name="height">The height of the video.</param>
/// <param name="quality">Video quality 0 to 10000.</param>
public AviWriter(string path, int frameRate, int width, int height, uint quality = 10000)
{
#region Validation
if (path == null)
{
throw new ArgumentNullException(nameof(path));
}
if (frameRate <= 0)
{
throw new ArgumentOutOfRangeException(nameof(frameRate), frameRate, "The frame rate must be at least 1 frame per second.");
}
if (width <= 0)
{
throw new ArgumentOutOfRangeException(nameof(width), width, "The width must be at least 1.");
}
if (height <= 0)
{
throw new ArgumentOutOfRangeException(nameof(height), height, "The height must be at least 1.");
}
#endregion
//Store parameters
var fccType = GetFourCc("vids");
_width = width;
_height = height;
_disposed = false;
//Get the stride information by creating a new bitmap and querying it
using (var bmp = new Bitmap(width, height, PixelFormat.Format24bppRgb))
{
var bmpData = bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
_stride = (uint)bmpData.Stride;
bmp.UnlockBits(bmpData);
}
try
{
//Initialize the AVI library.
AVIFileInit();
//Open the output AVI file.
var rv = AVIFileOpenW(ref _aviFile, path, AVI_OPEN_MODE_CREATEWRITE, 0);
if (rv != 0)
{
throw new Win32Exception(((AviErrors)rv).ToString());
}
//Create a new stream in the avi file.
var aviStreamInfo = new AVISTREAMINFOW
{
fccType = fccType,
fccHandler = 0,
dwScale = 1,
dwRate = (uint)frameRate,
dwSuggestedBufferSize = (uint)(_height * _stride),
dwQuality = quality, //-1 default 0xffffffff, 0 to 10.000
rcFrame = new Native.Rect
{
Bottom = _height,
Right = _width
}
};
rv = AVIFileCreateStream(_aviFile, out _aviStream, ref aviStreamInfo);
if (rv != 0)
{
throw new Win32Exception(((AviErrors)rv).ToString());
}
//Configure the compressed stream.
var streamFormat = new BITMAPINFOHEADER
{
biSize = 40,
biWidth = _width,
biHeight = _height,
biPlanes = 1,
biBitCount = 24,
biSizeImage = (uint)(_stride * _height)
};
rv = AVIStreamSetFormat(_aviStream, 0, ref streamFormat, 40);
if (rv != 0)
{
throw new Win32Exception(((AviErrors)rv).ToString()); //, "Unable to set the AVI stream format.");
}
}
catch
{
// Clean up
Dispose(false);
try
{
if (File.Exists(path))
{
File.Delete(path);
}
}
catch { }
throw;
}
}
private static extern int AVIStreamInfo(int pAVIStream, ref AVISTREAMINFOW psi, int lSize);
/// <summary>Initialize the AviFile.</summary>
/// <param name="path">The path to the output file.</param>
/// <param name="frameRate">The frame rate for the video.</param>
/// <param name="width">The width of the video.</param>
/// <param name="height">The height of the video.</param>
/// <param name="quality">Video quality 0 to 10000.</param>
public AviWriter(string path, int frameRate, int width, int height, uint quality = 10000)
{
#region Validation
if (path == null)
{
throw new ArgumentNullException(nameof(path));
}
if (frameRate <= 0)
{
throw new ArgumentOutOfRangeException(nameof(frameRate), frameRate, "The frame rate must be at least 1 frame per second.");
}
if (width <= 0)
{
throw new ArgumentOutOfRangeException(nameof(width), width, "The width must be at least 1.");
}
if (height <= 0)
{
throw new ArgumentOutOfRangeException(nameof(height), height, "The height must be at least 1.");
}
#endregion
//Store parameters.
_width = width;
_height = height;
_disposed = false;
//Get the stride information by creating a new bitmap and querying it
using (var bmp = new Bitmap(width, height, PixelFormat.Format24bppRgb))
{
var bmpData = bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
_stride = (uint)bmpData.Stride;
bmp.UnlockBits(bmpData);
}
try
{
//Initialize the AVI library.
AVIFileInit();
//Open the output AVI file.
var rv = AVIFileOpen(out _aviFile, path, AVI_OPEN_MODE_CREATEWRITE, IntPtr.Zero);
if (rv != 0)
{
throw new Win32Exception(((AviErrors)rv).ToString());
}
//Create a new stream in the avi file.
var aviStreamInfo = new AVISTREAMINFOW
{
fccType = GetFourCc("vids"),
fccHandler = GetFourCc("CVID"), //CVID// 808810089, //IV50 //'DIB '//MJPG
dwScale = 1,
dwRate = (uint)frameRate,
dwSuggestedBufferSize = (uint)(_height * _stride),
dwQuality = quality, //-1 default 0xffffffff, 0 to 10.000
rcFrame = new Native.Rect
{
Bottom = _height,
Right = _width
}
};
rv = AVIFileCreateStream(_aviFile, out _aviStream, ref aviStreamInfo);
if (rv != 0)
{
throw new Win32Exception(((AviErrors)rv).ToString());
}
//Set compress options.
var options = new AVICOMPRESSOPTIONS
{
fccType = GetFourCc("vids"),
lpParms = IntPtr.Zero,
lpFormat = IntPtr.Zero
};
var mem = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(AVICOMPRESSOPTIONS)));
Marshal.StructureToPtr(options, mem, false);
var streams = new[] { _aviStream };
var infPtrs = new[] { mem };
var ok = AVISaveOptions(IntPtr.Zero, ICMF_CHOOSE_KEYFRAME | ICMF_CHOOSE_DATARATE, 1, streams, infPtrs);
if (ok)
{
options = (AVICOMPRESSOPTIONS)Marshal.PtrToStructure(mem, typeof(AVICOMPRESSOPTIONS));
}
Marshal.FreeHGlobal(mem);
if (!ok)
{
throw new Exception("User cancelled the operation.");
}
rv = AVIMakeCompressedStream(out _compStream, _aviStream, ref options, 0);
if (rv != 0)
{
throw new Win32Exception(((AviErrors)rv).ToString());
}
//Configure the compressed stream.
var streamFormat = new BITMAPINFOHEADER
{
biSize = 40,
biWidth = _width,
biHeight = _height,
biPlanes = 1,
biBitCount = 24,
biSizeImage = (uint)(_stride * _height),
biCompression = 0 //BI_RGB
};
rv = AVIStreamSetFormat(_compStream, 0, ref streamFormat, 40);
if (rv != 0)
{
throw new Win32Exception(((AviErrors)rv).ToString());
}
}
catch
{
//Clean up.
Dispose(false);
try
{
if (File.Exists(path))
{
File.Delete(path);
}
}
catch { }
throw;
}
}
/// <summary>Initialize the AviFile.</summary>
/// <param name="path">The path to the output file.</param>
/// <param name="frameRate">The frame rate for the video.</param>
/// <param name="width">The width of the video.</param>
/// <param name="height">The height of the video.</param>
/// <param name="fourcc">The FOURCC compression value to use. A value of null means no compression is used.</param>
public AviImageWriter(string path, int frameRate, int width, int height)
{
// Validate parameters
if (path == null)
{
throw new ArgumentNullException("path");
}
if (frameRate <= 0)
{
throw new ArgumentOutOfRangeException("frameRate", frameRate, "The frame rate must be at least 1 frame per second.");
}
if (width <= 0)
{
throw new ArgumentOutOfRangeException("width", width, "The width must be at least 1.");
}
if (height <= 0)
{
throw new ArgumentOutOfRangeException("height", height, "The height must be at least 1.");
}
// Store parameters
uint fccType = GetFourCc("vids");
_width = width;
_height = height;
_disposed = false;
// Get the stride information by creating a new bitmap and querying it
using (Bitmap bmp = new Bitmap(width, height, PixelFormat.Format24bppRgb))
{
BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
_stride = (uint)bmpData.Stride;
bmp.UnlockBits(bmpData);
}
try
{
// Initialize the AVI library
AVIFileInit();
// Open the output AVI file
int rv = AVIFileOpenW(ref _aviFile, path, AVI_OPEN_MODE_CREATEWRITE, 0);
if (rv != 0)
{
throw new Win32Exception(((AviErrors)rv).ToString());
}
// Create a new stream in the avi file
AVISTREAMINFOW aviStreamInfo = new AVISTREAMINFOW();
aviStreamInfo.fccType = fccType;
aviStreamInfo.fccHandler = 0;
aviStreamInfo.dwScale = 1;
aviStreamInfo.dwRate = (uint)frameRate;
aviStreamInfo.dwSuggestedBufferSize = (uint)(_height * _stride);
aviStreamInfo.dwQuality = 0xffffffff;
aviStreamInfo.rcFrame = new RECT();
aviStreamInfo.rcFrame.bottom = _height;
aviStreamInfo.rcFrame.right = _width;
rv = AVIFileCreateStream(_aviFile, out _aviStream, ref aviStreamInfo);
if (rv != 0)
{
throw new Win32Exception(((AviErrors)rv).ToString());
}
// Configure the compressed stream
BITMAPINFOHEADER streamFormat = new BITMAPINFOHEADER();
streamFormat.biSize = 40;
streamFormat.biWidth = _width;
streamFormat.biHeight = _height;
streamFormat.biPlanes = 1;
streamFormat.biBitCount = 24;
streamFormat.biSizeImage = (uint)(_stride * _height);
rv = AVIStreamSetFormat(_aviStream, 0, ref streamFormat, 40);
if (rv != 0)
{
throw new Win32Exception(((AviErrors)rv).ToString()); //, "Unable to set the AVI stream format.");
}
}
catch
{
// Clean up
Dispose(false);
try { if (path != null && File.Exists(path))
{
File.Delete(path);
}
}
catch {}
throw;
}
}
/// <summary>Initialize the AviFile.</summary>
/// <param name="path">The path to the output file.</param>
/// <param name="frameRate">The frame rate for the video.</param>
/// <param name="width">The width of the video.</param>
/// <param name="height">The height of the video.</param>
/// <param name="fourcc">The FOURCC compression value to use. A value of null means no compression is used.</param>
public AviImageWriter(string path, int frameRate, int width, int height)
{
// Validate parameters
if (path == null) throw new ArgumentNullException("path");
if (frameRate <= 0) throw new ArgumentOutOfRangeException("frameRate", frameRate, "The frame rate must be at least 1 frame per second.");
if (width <= 0) throw new ArgumentOutOfRangeException("width", width, "The width must be at least 1.");
if (height <= 0) throw new ArgumentOutOfRangeException("height", height, "The height must be at least 1.");
// Store parameters
uint fccType = GetFourCc("vids");
_width = width;
_height = height;
_disposed = false;
// Get the stride information by creating a new bitmap and querying it
using (Bitmap bmp = new Bitmap(width, height, PixelFormat.Format24bppRgb))
{
BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
_stride = (uint)bmpData.Stride;
bmp.UnlockBits(bmpData);
}
try
{
// Initialize the AVI library
AVIFileInit();
// Open the output AVI file
int rv = AVIFileOpenW(ref _aviFile, path, AVI_OPEN_MODE_CREATEWRITE, 0);
if (rv != 0) throw new Win32Exception(((AviErrors)rv).ToString());
// Create a new stream in the avi file
AVISTREAMINFOW aviStreamInfo = new AVISTREAMINFOW();
aviStreamInfo.fccType = fccType;
aviStreamInfo.fccHandler = 0;
aviStreamInfo.dwScale = 1;
aviStreamInfo.dwRate = (uint)frameRate;
aviStreamInfo.dwSuggestedBufferSize = (uint)(_height * _stride);
aviStreamInfo.dwQuality = 0xffffffff;
aviStreamInfo.rcFrame = new RECT();
aviStreamInfo.rcFrame.bottom = _height;
aviStreamInfo.rcFrame.right = _width;
rv = AVIFileCreateStream(_aviFile, out _aviStream, ref aviStreamInfo);
if(rv != 0) throw new Win32Exception(((AviErrors)rv).ToString());
// Configure the compressed stream
BITMAPINFOHEADER streamFormat = new BITMAPINFOHEADER();
streamFormat.biSize = 40;
streamFormat.biWidth = _width;
streamFormat.biHeight = _height;
streamFormat.biPlanes = 1;
streamFormat.biBitCount = 24;
streamFormat.biSizeImage = (uint)(_stride * _height);
rv = AVIStreamSetFormat(_aviStream, 0, ref streamFormat, 40);
if (rv != 0) throw new Win32Exception(((AviErrors)rv).ToString()); //, "Unable to set the AVI stream format.");
}
catch
{
// Clean up
Dispose(false);
try { if (path != null && File.Exists(path)) File.Delete(path); }
catch{}
throw;
}
}
private static extern int AVIFileCreateStream(IntPtr pfile, out IntPtr ppavi, ref AVISTREAMINFOW psi);
