繼續上一篇blog
using System;
using System.Runtime.InteropServices;
using System.Drawing;
using System.Drawing.Imaging;
namespace org.loon.util
{
/// <summary>
/// AVIWriter 的摘要說明，chenpeng,Email:ceponline@yahoo.com.cn。
/// </summary>
public class AVIWriter
{
const string AVIFILE32 = "AVIFIL32";
private int _pfile = 0;
private IntPtr _ps = new IntPtr(0);
private IntPtr _psCompressed = new IntPtr(0);
private UInt32 _frameRate = 0;
private int _count = 0;
private UInt32 _width = 0;
private UInt32 _stride = 0;
private UInt32 _height = 0;
//avi標識
private UInt32 _fccType = 1935960438; // vids
private UInt32 _fccHandler = 808810089;// IV50
private Bitmap _bmp;
[DllImport(AVIFILE32)]
private static extern void AVIFileInit();
[DllImport(AVIFILE32)]
private static extern int AVIFileOpenW(ref int ptr_pfile, [MarshalAs(UnmanagedType.LPWStr)]string fileName, int flags, int dummy);
[DllImport(AVIFILE32)]
private static extern int AVIFileCreateStream(int ptr_pfile, out IntPtr ptr_ptr_avi, ref AVISTREAMINFOW ptr_streaminfo);
[DllImport(AVIFILE32)]
private static extern int AVIMakeCompressedStream(out IntPtr ppsCompressed, IntPtr aviStream, ref AVICOMPRESSOPTIONS ao, int dummy);
[DllImport(AVIFILE32)]
private static extern int AVIStreamSetFormat(IntPtr aviStream, Int32 lPos, ref BITMAPINFOHEADER lpFormat, Int32 cbFormat);
[DllImport(AVIFILE32)]
unsafe private static extern int AVISaveOptions(int hwnd, UInt32 flags,int nStreams, IntPtr* ptr_ptr_avi, AVICOMPRESSOPTIONS** ao);
[DllImport(AVIFILE32)]
private static extern int AVIStreamWrite(IntPtr aviStream, Int32 lStart,Int32 lSamples, IntPtr lpBuffer, Int32 cbBuffer, Int32 dwFlags, Int32 dummy1, Int32 dummy2);
[DllImport(AVIFILE32)]
private static extern int AVIStreamRelease(IntPtr aviStream);
[DllImport(AVIFILE32)]
private static extern int AVIFileRelease(int pfile);
[DllImport(AVIFILE32)]
private static extern void AVIFileExit();
[StructLayout(LayoutKind.Sequential, Pack = 1)]
private struct AVISTREAMINFOW
{
public UInt32 fccType;
public UInt32 fccHandler;
public UInt32 dwFlags;
public UInt32 dwCaps;
public UInt16 wPriority;
public UInt16 wLanguage;
public UInt32 dwScale;
public UInt32 dwRate;
public UInt32 dwStart;
public UInt32 dwLength;
public UInt32 dwInitialFrames;
public UInt32 dwSuggestedBufferSize;
public UInt32 dwQuality;
public UInt32 dwSampleSize;
public UInt32 rect_left;
public UInt32 rect_top;
public UInt32 rect_right;
public UInt32 rect_bottom;
public UInt32 dwEditCount;
public UInt32 dwFormatChangeCount;
public UInt16 szName0;
public UInt16 szName1;
public UInt16 szName2;
public UInt16 szName3;
public UInt16 szName4;
public UInt16 szName5;
public UInt16 szName6;
public UInt16 szName7;
public UInt16 szName8;
public UInt16 szName9;
public UInt16 szName10;
public UInt16 szName11;
public UInt16 szName12;
public UInt16 szName13;
public UInt16 szName14;
public UInt16 szName15;
public UInt16 szName16;
public UInt16 szName17;
public UInt16 szName18;
public UInt16 szName19;
public UInt16 szName20;
public UInt16 szName21;
public UInt16 szName22;
public UInt16 szName23;
public UInt16 szName24;
public UInt16 szName25;
public UInt16 szName26;
public UInt16 szName27;
public UInt16 szName28;
public UInt16 szName29;
public UInt16 szName30;
public UInt16 szName31;
public UInt16 szName32;
public UInt16 szName33;
public UInt16 szName34;
public UInt16 szName35;
public UInt16 szName36;
public UInt16 szName37;
public UInt16 szName38;
public UInt16 szName39;
public UInt16 szName40;
public UInt16 szName41;
public UInt16 szName42;
public UInt16 szName43;
public UInt16 szName44;
public UInt16 szName45;
public UInt16 szName46;
public UInt16 szName47;
public UInt16 szName48;
public UInt16 szName49;
public UInt16 szName50;
public UInt16 szName51;
public UInt16 szName52;
public UInt16 szName53;
public UInt16 szName54;
public UInt16 szName55;
public UInt16 szName56;
public UInt16 szName57;
public UInt16 szName58;
public UInt16 szName59;
public UInt16 szName60;
public UInt16 szName61;
public UInt16 szName62;
public UInt16 szName63;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
private struct AVICOMPRESSOPTIONS
{
public UInt32 fccType;
public UInt32 fccHandler;
public UInt32 dwKeyFrameEvery;
public UInt32 dwQuality;
public UInt32 dwBytesPerSecond;
public UInt32 dwFlags;
public IntPtr lpFormat;
public UInt32 cbFormat;
public IntPtr lpParms;
public UInt32 cbParms;
public UInt32 dwInterleaveEvery;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct BITMAPINFOHEADER
{
public UInt32 biSize;
public Int32 biWidth;
public Int32 biHeight;
public Int16 biPlanes;
public Int16 biBitCount;
public UInt32 biCompression;
public UInt32 biSizeImage;
public Int32 biXPelsPerMeter;
public Int32 biYPelsPerMeter;
public UInt32 biClrUsed;
public UInt32 biClrImportant;
}
public class AviException : ApplicationException
{
public AviException(string s) : base(s) { }
public AviException(string s, Int32 hr)
: base(s)
{
if (hr == AVIERR_BADPARAM)
{
err_msg = "AVIERR_BADPARAM";
}
else
{
err_msg = "unknown";
}
}
public string ErrMsg()
{
return err_msg;
}
private const Int32 AVIERR_BADPARAM = -2147205018;
private string err_msg;
}
public Bitmap Create(string fileName, UInt32 frameRate, int width, int
height)
{
_frameRate = frameRate;
_width = (UInt32)width;
_height = (UInt32)height;
_bmp = new Bitmap(width, height, PixelFormat.Format24bppRgb);
//鎖定為24位位圖
BitmapData bmpDat = _bmp.LockBits(new Rectangle(0, 0, width,
height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
_stride = (UInt32)bmpDat.Stride;
_bmp.UnlockBits(bmpDat);
AVIFileInit();
int hr = AVIFileOpenW(ref _pfile, fileName, 4097, 0);
if (hr != 0)
{
throw new AviException("Create錯誤!");
}
CreateStream();
SetOptions();
return _bmp;
}
public void AddFrame()
{
BitmapData bmpDat = _bmp.LockBits(
new Rectangle(0, 0, (int)_width, (int)_height),
ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
int hr = AVIStreamWrite(_psCompressed, _count, 1,
bmpDat.Scan0,
(Int32)(_stride * _height),
0,
0,
0);
if (hr != 0)
{
throw new AviException("AVIStreamWrite");
}
_bmp.UnlockBits(bmpDat);
_count++;
}
public void LoadFrame(Bitmap nextframe)
{
_bmp = new Bitmap(nextframe);
}
public void Close()
{
AVIStreamRelease(_ps);
AVIStreamRelease(_psCompressed);
AVIFileRelease(_pfile);
AVIFileExit();
}
/// <summary>
/// 創建流文件
/// </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");
}
}
/// <summary>
/// 設置參數
/// </summary>
unsafe private void SetOptions()
{
AVICOMPRESSOPTIONS opts = new AVICOMPRESSOPTIONS();
opts.fccType = _fccType;
opts.fccHandler = 0;
opts.dwKeyFrameEvery = 0;
opts.dwQuality = 0;
opts.dwFlags = 0;
opts.dwBytesPerSecond = 0;
opts.lpFormat = new IntPtr(0);
opts.cbFormat = 0;
opts.lpParms = new IntPtr(0);
opts.cbParms = 0;
opts.dwInterleaveEvery = 0;
AVICOMPRESSOPTIONS* p = &opts;
AVICOMPRESSOPTIONS** pp = &p;
IntPtr x = _ps;
IntPtr* ptr_ps = &x;
AVISaveOptions(0, 0, 1, ptr_ps, pp);
int hr = AVIMakeCompressedStream(out _psCompressed, _ps, ref
opts, 0);
if (hr != 0)
{
throw new AviException("AVIMakeCompressedStream");
}
BITMAPINFOHEADER bi = new BITMAPINFOHEADER();
bi.biSize = 40;
bi.biWidth = (Int32)_width;
bi.biHeight = (Int32)_height;
bi.biPlanes = 1;
bi.biBitCount = 24;
bi.biCompression = 0;
bi.biSizeImage = _stride * _height;
bi.biXPelsPerMeter = 0;
bi.biYPelsPerMeter = 0;
bi.biClrUsed = 0;
bi.biClrImportant = 0;
hr = AVIStreamSetFormat(_psCompressed, 0, ref bi, 40);
if (hr != 0)
{
throw new AviException("AVIStreamSetFormat", hr);
}
}
};
}
運行：
org.loon.util.FileUtil file=new org.loon.util.FileUtil();
org.loon.util.AVIWriter aviWriter = new org.loon.util.AVIWriter();
//ps:avi中所有圖像皆不能小于width及height
Bitmap avi_frame = aviWriter.Create("d:/mytest.avi",1, 700, 700);
//獲得指定目錄下文件列表的list
IList list=file.ListFile("D:/羅德島戰記/羅德島戰記1/");
foreach(string s in list)
{
//獲得圖像
Bitmap cache=new Bitmap("D:/羅德島戰記/羅德島戰記1/"+s);
//由于轉化為avi后呈現相反，所以翻轉
cache.RotateFlip(RotateFlipType.Rotate180FlipX);
//載入圖像
aviWriter.LoadFrame(cache);
aviWriter.AddFrame();
}
//釋放資源
aviWriter.Close();
avi_frame.Dispose();
播放畫面如下：
生成的文件屬性如下，與我們設定的參數相符：
是 不是很簡單？實際上，借助于avifile32 api，我們甚至可以改變文件壓縮格式，加入背景音樂，乃至植入病毒（咳，通常我們結合桌面截圖及avi生成還有模擬鍵盤，就可以遠程操作或者監控、記錄 電腦操作……）總之，在windows下操作avi文件是一件再簡單沒有的事情了。
有興趣的話可以這兩篇博文為基礎，將其修改為自己的字幕組工具、屏幕錄像工具、乃至遠程監控工具等。有疑問的話，可以發email到:ceponline@yahoo.com.cn
using System;using System.Runtime.InteropServices;using System.Drawing;using System.Drawing.Imaging;namespace org.loon.util{
/// <summary>
/// AVIWriter 的摘要說明，chenpeng,Email:ceponline@yahoo.com.cn。 /// </summary> public class AVIWriter { const string AVIFILE32 = "AVIFIL32"; private int _pfile = 0; private IntPtr _ps = new IntPtr(0); private IntPtr _psCompressed = new IntPtr(0); private UInt32 _frameRate = 0; private int _count = 0; private UInt32 _width = 0; private UInt32 _stride = 0; private UInt32 _height = 0; //avi標識 private UInt32 _fccType = 1935960438; // vids private UInt32 _fccHandler = 808810089;// IV50 private Bitmap _bmp; [DllImport(AVIFILE32)] private static extern void AVIFileInit(); [DllImport(AVIFILE32)] private static extern int AVIFileOpenW(ref int ptr_pfile, [MarshalAs(UnmanagedType.LPWStr)]string fileName, int flags, int dummy); [DllImport(AVIFILE32)] private static extern int AVIFileCreateStream(int ptr_pfile, out IntPtr ptr_ptr_avi, ref AVISTREAMINFOW ptr_streaminfo); [DllImport(AVIFILE32)] private static extern int AVIMakeCompressedStream(out IntPtr ppsCompressed, IntPtr aviStream, ref AVICOMPRESSOPTIONS ao, int dummy); [DllImport(AVIFILE32)] private static extern int AVIStreamSetFormat(IntPtr aviStream, Int32 lPos, ref BITMAPINFOHEADER lpFormat, Int32 cbFormat); [DllImport(AVIFILE32)] unsafe private static extern int AVISaveOptions(int hwnd, UInt32 flags,int nStreams, IntPtr* ptr_ptr_avi, AVICOMPRESSOPTIONS** ao); [DllImport(AVIFILE32)] private static extern int AVIStreamWrite(IntPtr aviStream, Int32 lStart,Int32 lSamples, IntPtr lpBuffer, Int32 cbBuffer, Int32 dwFlags, Int32 dummy1, Int32 dummy2); [DllImport(AVIFILE32)] private static extern int AVIStreamRelease(IntPtr aviStream); [DllImport(AVIFILE32)] private static extern int AVIFileRelease(int pfile); [DllImport(AVIFILE32)] private static extern void AVIFileExit(); [StructLayout(LayoutKind.Sequential, Pack = 1)] private struct AVISTREAMINFOW { public UInt32 fccType; public UInt32 fccHandler; public UInt32 dwFlags; public UInt32 dwCaps; public UInt16 wPriority; public UInt16 wLanguage; public UInt32 dwScale; public UInt32 dwRate; public UInt32 dwStart; public UInt32 dwLength; public UInt32 dwInitialFrames; public UInt32 dwSuggestedBufferSize; public UInt32 dwQuality; public UInt32 dwSampleSize; public UInt32 rect_left; public UInt32 rect_top; public UInt32 rect_right; public UInt32 rect_bottom; public UInt32 dwEditCount; public UInt32 dwFormatChangeCount; public UInt16 szName0; public UInt16 szName1; public UInt16 szName2; public UInt16 szName3; public UInt16 szName4; public UInt16 szName5; public UInt16 szName6; public UInt16 szName7; public UInt16 szName8; public UInt16 szName9; public UInt16 szName10; public UInt16 szName11; public UInt16 szName12; public UInt16 szName13; public UInt16 szName14; public UInt16 szName15; public UInt16 szName16; public UInt16 szName17; public UInt16 szName18; public UInt16 szName19; public UInt16 szName20; public UInt16 szName21; public UInt16 szName22; public UInt16 szName23; public UInt16 szName24; public UInt16 szName25; public UInt16 szName26; public UInt16 szName27; public UInt16 szName28; public UInt16 szName29; public UInt16 szName30; public UInt16 szName31; public UInt16 szName32; public UInt16 szName33; public UInt16 szName34; public UInt16 szName35; public UInt16 szName36; public UInt16 szName37; public UInt16 szName38; public UInt16 szName39; public UInt16 szName40; public UInt16 szName41; public UInt16 szName42; public UInt16 szName43; public UInt16 szName44; public UInt16 szName45; public UInt16 szName46; public UInt16 szName47; public UInt16 szName48; public UInt16 szName49; public UInt16 szName50; public UInt16 szName51; public UInt16 szName52; public UInt16 szName53; public UInt16 szName54; public UInt16 szName55; public UInt16 szName56; public UInt16 szName57; public UInt16 szName58; public UInt16 szName59; public UInt16 szName60; public UInt16 szName61; public UInt16 szName62; public UInt16 szName63; } [StructLayout(LayoutKind.Sequential, Pack = 1)] private struct AVICOMPRESSOPTIONS { public UInt32 fccType; public UInt32 fccHandler; public UInt32 dwKeyFrameEvery; public UInt32 dwQuality; public UInt32 dwBytesPerSecond; public UInt32 dwFlags; public IntPtr lpFormat; public UInt32 cbFormat; public IntPtr lpParms; public UInt32 cbParms; public UInt32 dwInterleaveEvery; } [StructLayout(LayoutKind.Sequential, Pack = 1)] public struct BITMAPINFOHEADER { public UInt32 biSize; public Int32 biWidth; public Int32 biHeight; public Int16 biPlanes; public Int16 biBitCount; public UInt32 biCompression; public UInt32 biSizeImage; public Int32 biXPelsPerMeter; public Int32 biYPelsPerMeter; public UInt32 biClrUsed; public UInt32 biClrImportant; } public class AviException : ApplicationException { public AviException(string s) : base(s) { } public AviException(string s, Int32 hr) : base(s) { if (hr == AVIERR_BADPARAM) { err_msg = "AVIERR_BADPARAM"; } else { err_msg = "unknown"; } } public string ErrMsg() { return err_msg; } private const Int32 AVIERR_BADPARAM = -2147205018; private string err_msg; } public Bitmap Create(string fileName, UInt32 frameRate, int width, int height) { _frameRate = frameRate; _width = (UInt32)width; _height = (UInt32)height; _bmp = new Bitmap(width, height, PixelFormat.Format24bppRgb); //鎖定為24位位圖 BitmapData bmpDat = _bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb); _stride = (UInt32)bmpDat.Stride; _bmp.UnlockBits(bmpDat); AVIFileInit(); int hr = AVIFileOpenW(ref _pfile, fileName, 4097, 0); if (hr != 0) { throw new AviException("Create錯誤!"); } CreateStream(); SetOptions(); return _bmp; } public void AddFrame() { BitmapData bmpDat = _bmp.LockBits( new Rectangle(0, 0, (int)_width, (int)_height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb); int hr = AVIStreamWrite(_psCompressed, _count, 1, bmpDat.Scan0, (Int32)(_stride * _height), 0, 0, 0); if (hr != 0) { throw new AviException("AVIStreamWrite"); } _bmp.UnlockBits(bmpDat); _count++; } public void LoadFrame(Bitmap nextframe) { _bmp = new Bitmap(nextframe); } public void Close() { AVIStreamRelease(_ps); AVIStreamRelease(_psCompressed); AVIFileRelease(_pfile); AVIFileExit(); } /// <summary> /// 創建流文件 /// </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"); } } /// <summary> /// 設置參數 /// </summary> unsafe private void SetOptions() { AVICOMPRESSOPTIONS opts = new AVICOMPRESSOPTIONS(); opts.fccType = _fccType; opts.fccHandler = 0; opts.dwKeyFrameEvery = 0; opts.dwQuality = 0; opts.dwFlags = 0; opts.dwBytesPerSecond = 0; opts.lpFormat = new IntPtr(0); opts.cbFormat = 0; opts.lpParms = new IntPtr(0); opts.cbParms = 0; opts.dwInterleaveEvery = 0; AVICOMPRESSOPTIONS* p = &opts; AVICOMPRESSOPTIONS** pp = &p; IntPtr x = _ps; IntPtr* ptr_ps = &x; AVISaveOptions(0, 0, 1, ptr_ps, pp); int hr = AVIMakeCompressedStream(out _psCompressed, _ps, ref opts, 0); if (hr != 0) { throw new AviException("AVIMakeCompressedStream"); } BITMAPINFOHEADER bi = new BITMAPINFOHEADER(); bi.biSize = 40; bi.biWidth = (Int32)_width; bi.biHeight = (Int32)_height; bi.biPlanes = 1; bi.biBitCount = 24; bi.biCompression = 0; bi.biSizeImage = _stride * _height; bi.biXPelsPerMeter = 0; bi.biYPelsPerMeter = 0; bi.biClrUsed = 0; bi.biClrImportant = 0; hr = AVIStreamSetFormat(_psCompressed, 0, ref bi, 40); if (hr != 0) { throw new AviException("AVIStreamSetFormat", hr); } } };}運行：
org.loon.util.FileUtil file=new org.loon.util.FileUtil(); org.loon.util.AVIWriter aviWriter = new org.loon.util.AVIWriter(); //ps:avi中所有圖像皆不能小于width及height Bitmap avi_frame = aviWriter.Create("d:/mytest.avi",1, 700, 700); //獲得指定目錄下文件列表的list IList list=file.ListFile("D:/羅德島戰記/羅德島戰記1/"); foreach(string s in list) { //獲得圖像 Bitmap cache=new Bitmap("D:/羅德島戰記/羅德島戰記1/"+s); //由于轉化為avi后呈現相反，所以翻轉 cache.RotateFlip(RotateFlipType.Rotate180FlipX); //載入圖像 aviWriter.LoadFrame(cache); aviWriter.AddFrame(); } //釋放資源 aviWriter.Close(); avi_frame.Dispose();播放畫面如下：
生成的文件屬性如下，與我們設定的參數相符：
是 不是很簡單？實際上，借助于avifile32 api，我們甚至可以改變文件壓縮格式，加入背景音樂，乃至植入病毒（咳，通常我們結合桌面截圖及avi生成還有模擬鍵盤，就可以遠程操作或者監控、記錄 電腦操作……）總之，在windows下操作avi文件是一件再簡單沒有的事情了。
有興趣的話可以這兩篇博文為基礎，將其修改為自己的字幕組工具、屏幕錄像工具、乃至遠程監控工具等。有疑問的話，可以發email到:ceponline@yahoo.com.cn
浙公網安備 33010602011771號