unit avi;interface
{$I config.inc}
uses
Windows, SysUtils,Classes, Graphics, Dialogs,MMSystem,ACMWaveIn,ACMWaveOut, Controls,Forms,
{$IFDEF VER90}
ole2;
{$ELSE}
ActiveX;
{$ENDIF}type
TAVIStreamInfoA = record
fccType,
fccHandler,
dwFlags, // Contains AVITF_* flags
dwCaps: DWORD;
wPriority,
wLanguage: WORD;
dwScale,
dwRate, // dwRate / dwScale == samples/second
dwStart,
dwLength, // In units above...
dwInitialFrames,
dwSuggestedBufferSize,
dwQuality,
dwSampleSize: DWORD;
rcFrame: TRect;
dwEditCount,
dwFormatChangeCount: DWORD;
szName: array[0..63] of AnsiChar;
end; WAVEFORMATEX = record
wFormatTag : WORD ;
nChannels : WORD ;
nSamplesPerSec : DWORD ;
nAvgBytesPerSec : DWORD ;
nBlockAlign : WORD ;
wBitsPerSample : WORD ;
cbSize : WORD ;
end; Tmpeglayer3waveformat_tag = record
wfx : WAVEFORMATEX ;
wID : WORD ;
fdwFlags : DWORD ;
nBlockSize : WORD ;
nFramesPerBlock : WORD ;
nCodecDelay : WORD ;
end;
TAVIStreamInfo = TAVIStreamInfoA;
PAVIStreamInfo = ^TAVIStreamInfo; TWavHeader = record
rId : longint;
rLen : longint;
wId : longint;
fId : longint;
fLen : longint;
wFormatTag : word;
nChannels : word;
nSamplesPerSec : longint;
nAvgBytesPerSec : longint;
nBlockAlign : word;
wBitsPerSample : word;
dId : longint;
wSampleLength : longint;
end;
PTWavHeader = ^TWavHeader; TAVICOMPRESSOPTIONS = record
fccType ,
fccHandler ,
dwKeyFrameEvery,
dwQuality ,
dwBytesPerSecond ,
dwFlags : DWORD ;
lpFormat : Pointer ;
cbFormat : DWORD ;
lpParms : Pointer ;
cbParms : DWORD ;
dwInterleaveEvery :DWORD ;
end;
PAVICOMPRESSOPTIONS = ^TAVICOMPRESSOPTIONS; TFmtChunk = packed record
id : array[0..3] of Char; //="fmt "
size : ULONG; //=16
wFormatTag : Word ; //=WAVE_FORMAT_PCM=1
wChannels : Word; //=1 or 2 for mono or stereo
dwSamplesPerSec : ULONG ; //=11025 or 22050 or 44100
dwAvgBytesPerSec : ULONG ; //=wBlockAlign * dwSamplesPerSec
wBlockAlign : Word; //=wChannels * (wBitsPerSample==8?1:2)
wBitsPerSample : Word ; //=8 or 16, for bits per sample
end; TDataChunk = packed record
id : array[0..3] of Char; //="data"
size : ULONG; //=datsize, size of the following array
data : PByte; //=the raw data goes here
end; TWavChunk = packed record
id : array[0..3] of Char; //="RIFF"
size : ULONG; //=datsize+8+16+4
itype : array[0..3] of Char; //="WAVE"
fmt : TFmtChunk ;
dat : TDataChunk ;
end;
PWavChunk = ^TWavChunk; pRGBArray = ^TRGBArray;
TRGBArray = array[0..32767] of TRGBTriple; Tbuffer = array of char; TAVISaveCallback = function(nPercent: integer): LONGint; stdcall;
function AVIFileOpen(var ppfile: pointer; szFile: PChar; uMode: UINT; lpHandler: pointer): HResult; stdcall;
procedure AVIFileInit; stdcall;
procedure AVIFileExit; stdcall;
function AVIFileCreateStream(pfile: pointer; var ppavi: pointer; var psi: TAVIStreamInfo): HResult; stdcall;
function AVIStreamSetFormat(pavi: pointer; lPos: LONGint; lpFormat: pointer; cbFormat: LONGint): HResult; stdcall;
function AVIFileGetStream(pfile: pointer; var ppavi: pointer; streamtype : DWORD;cbFormat: LONGint): HResult; stdcall;
function AVIStreamWrite(pavi: pointer; lStart, lSamples: LONGint; lpBuffer: pointer; cbBuffer: LONGint; dwFlags: DWORD; var plSampWritten: LONGint; var plBytesWritten: LONGint): HResult; stdcall;
function AVIStreamRelease(pavi: pointer): ULONG; stdcall;
function AVIFileRelease(pfile: pointer): ULONG; stdcall;
function CreateEditableStream(var ppsEditable: pointer; psSource: pointer): HResult; stdcall;
function AVIStreamInfo(pAVIStream : Pointer; var psi : TAVIStreamInfo; lSize : LongInt) : HRESULT; stdcall;
function AVIStreamStart(pavi : LongInt) : HRESULT; stdcall;
function AVIStreamLength(pavi : LongInt) : HRESULT; stdcall;
function AVIStreamGetFrameOpen(pAVIStream : Pointer; var bih : TBitmapInfoHeader) : HRESULT; stdcall;
function AVIStreamReadFormat(aviStream : Pointer; lPos : LongInt; var lpFormat : tWAVEFORMATEX; var cbFormat : LongInt): HRESULT; stdcall;
function AVISaveOptions(handle : HWND;uiFlags : ULONG;nStreams : Integer;var ppavi : Pointer; plpOptions : PAVICOMPRESSOPTIONS): HRESULT; stdcall;
function AVISaveOptionsFree(nStreams : Integer; var plpOptions : TAVICOMPRESSOPTIONS): HRESULT; stdcall;
function AVIMakeCompressedStream(var ppsCompressed : Pointer; psSource : Pointer; var lpOptions : TAVICOMPRESSOPTIONS; var dummy : Integer): HRESULT; stdcall;
procedure InternalGetDIBSizes(Bitmap: HBITMAP; var InfoHeaderSize: Integer; var ImageSize: longInt; PixelFormat: TPixelFormat);
procedure InitializeBitmapInfoHeader(Bitmap: HBITMAP; var Info: TBitmapInfoHeader;PixelFormat: TPixelFormat);
function AlignBit(Bits, BitsPerPixel, Alignment: Cardinal): Cardinal;
function InternalGetDIB(Bitmap: HBITMAP; Palette: HPALETTE; var BitmapInfo; var Bits; PixelFormat: TPixelFormat): Boolean;
function CreateAviFile(fname : string ; dwWidth , dwHeight,idwRate : Integer ;pf : TPixelFormat; var pFile : Pointer; var pStream : Pointer ) : Boolean;
function WriteAviFile(pvideo : Pointer; var istep : Integer;pData : Pointer ;iw,ih : Integer; bufsize : Cardinal;bVertical : Boolean = False) : HRESULT;
function CloseAViFile(var pFile,pStream : Pointer) : Boolean ;
procedure CreateWav(channels, resolution: word; rate: Integer;fn: string);
procedure StartWave(parent : TWinControl; bufsize : LongInt; onData : TOnData);
procedure CloseWave;
function AddWave( avifile, audiofile:string):boolean;
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const
streamtypeAUDIO = byte('a') or (byte('u') shl 8) or (byte('d') shl 16) or (byte('s') shl 24);//$73647561;
streamtypeVIDEO = byte('v') or (byte('i') shl 8) or (byte('d') shl 16) or (byte('s') shl 24);//$73646976;
streamtypeDIVX = byte('D') or (byte('i') shl 8) or (byte('v') shl 16) or (byte('x') shl 24);
streamIV32 = byte('i') or (byte('v') shl 8) or (byte('3') shl 16) or (byte('2') shl 24);
AVIIF_KEYFRAME = $10;
MPEGLAYER3_FLAG_PADDING_ISO = 0;
MPEGLAYER3_FLAG_PADDING_ON = 1;
MPEGLAYER3_FLAG_PADDING_OFF = 2;
MPEGLAYER3_WFX_EXTRA_BYTES = 12 ;
WAVE_FORMAT_MPEGLAYER3 = $0055;
ICMF_CHOOSE_KEYFRAME = $0001; // show KeyFrame Every box
ICMF_CHOOSE_DATARATE = $0002; // show DataRate box
ICMF_CHOOSE_PREVIEW = $0004;
AVICOMPRESSF_INTERLEAVE = $00000001; // interleave
AVICOMPRESSF_DATARATE = $00000002; // use a data rate
AVICOMPRESSF_KEYFRAMES = $00000004; // use keyframes
AVICOMPRESSF_VALID = $00000008;
var
AcmWaveIn : TACMWaveIn;
bStartWave : Boolean = False;
GWaveStep : Integer = 0;
WaveBuff : array of Byte;
WaveBuffsize : Integer;
implementationprocedure AVIFileInit; stdcall; external 'avifil32.dll' name 'AVIFileInit';
procedure AVIFileExit; stdcall; external 'avifil32.dll' name 'AVIFileExit';
function AVIFileOpen; external 'avifil32.dll' name 'AVIFileOpenA';
function AVIFileCreateStream; external 'avifil32.dll' name 'AVIFileCreateStreamA';
function AVIStreamSetFormat; external 'avifil32.dll' name 'AVIStreamSetFormat';
function AVIFileGetStream; external 'avifil32.dll' name 'AVIFileGetStream';
function AVIStreamWrite; external 'avifil32.dll' name 'AVIStreamWrite';
function AVIStreamRelease; external 'avifil32.dll' name 'AVIStreamRelease';
function AVIFileRelease; external 'avifil32.dll' name 'AVIFileRelease';
function CreateEditableStream; external 'avifil32.dll' name 'CreateEditableStream';
function AVIStreamInfo; external 'avifil32.dll' name 'AVIStreamInfo';
function AVIStreamStart; external 'avifil32.dll' name 'AVIStreamStart';
function AVIStreamLength; external 'avifil32.dll' name 'AVIStreamLength';
function AVIStreamGetFrameOpen; external 'avifil32.dll' name 'AVIStreamGetFrameOpen';
function AVIStreamReadFormat; external 'avifil32.dll' name 'AVIStreamReadFormat';
function AVISaveOptions; external 'avifil32.dll' name 'AVISaveOptions';
function AVISaveOptionsFree; external 'avifil32.dll' name 'AVISaveOptionsFree';
function AVIMakeCompressedStream; external 'avifil32.dll' name 'AVIMakeCompressedStream';
function AddWave( avifile, audiofile:string):boolean;
var buf:array of Byte;
WavChunk:pTWavheader;
hdr:Thandle;
size:dword;
read:dword;
numbytes,numsamps:integer;
StreamInfoW:TAVIStreamInfo;
Dummy : Integer;
wfx:tWAVEFORMATEX;
pavi , pStreamW: Pointer;
wav : PWavChunk;
label Error;
begin
Result := False;
if not FileExists(avifile) or (not FileExists(audiofile)) then Exit;
AVIFileInit;
if AVIFileOpen(pavi,PChar(avifile), OF_READWRITE , nil) <> 0 then Exit;
hdr:=FileOpen(audiofile,fmOpenRead);
size:=getfilesize(hdr,nil);
setlength(buf,size);
FileRead(hdr,buf[0],size);
FileClose(hdr);
wav := PWavChunk(buf); //ÉèÖÃÒôƵÁ÷
wfx.wFormatTag := wav.fmt.wFormatTag;
wfx.nAvgBytesperSec := wav.fmt.dwAvgBytesPerSec;
wfx.nBlockAlign := wav.fmt.wBlockAlign;
wfx.nSamplesPerSec := wav.fmt.dwSamplesPerSec;
wfx.wBitsPerSample := wav.fmt.wBitsPerSample;
wfx.nChannels := WAV.fmt.wChannels;
FillChar(StreamInfow, sizeof(StreamInfow), 0); streamInfow.fccType := streamtypeAUDIO;
streamInfow.dwScale := wav.fmt.wBlockAlign;
streamInfow.dwRate := wav.fmt.dwSamplesPerSec*wav.fmt.wBlockAlign;
streamInfow.dwSampleSize := wav.fmt.wBlockAlign;
streamInfow.dwQuality:=dword(-1); if (aviFileCreateStream(pavi,pStreamW,StreamInfoW) <>0) then
goto Error; if (AVIStreamSetFormat(pStreamW, 0, @wfx, sizeof(tWAVEFORMATEX)) <> 0) then
goto Error;
//ÏÂÃæдÒôƵÁ÷Êý¾Ý
numbytes:= wav.dat.size;
numsamps:= (numbytes*8) div (wav.fmt.wBitsPerSample);
//size - wav.dat.size
if AVIStreamWrite(pStreamw, 0, numsamps,@buf[0] , numbytes, AVIIF_KEYFRAME,Dummy, Dummy) <> 0 then
goto Error;
Error :
if pStreamW <> nil then
AVIStreamRelease(pStreamW);
if pavi <> nil then
AVIFileRelease(pavi);
AVIFileExit;
buf := nil;
result:=True;
end;procedure StartWave(parent : TWinControl;bufsize : LongInt; onData : TOnData);
var format:TWaveFormatEx;
begin
if Assigned(AcmWaveIn) then
AcmWaveIn.Close
else AcmWaveIn := TACMWaveIn.Create(parent);
with format do
begin
wFormatTag := WAVE_FORMAT_PCM;
nChannels := 1;
nSamplesPerSec := 16000;
wBitsPerSample := 8;
nBlockAlign := nChannels * (wBitsPerSample div 8 );
nAvgBytesPerSec := nSamplesPerSec * nBlockAlign;
cbSize := 0;
end;
AcmWaveIn.Parent := parent;
AcmWaveIn.OnData := onData;
ACMWaveIn.BufferSize := bufsize;
ACMWaveIn.Open(@format);
bStartWave := True;
SetLength(WaveBuff,bufsize);
GWaveStep := 0;
WaveBuffsize := bufsize;
end;procedure CloseWave;
begin
if Assigned(AcmWaveIn) then
begin
AcmWaveIn.Close;
FreeAndNil(AcmWaveIn);
end;
bStartWave := False;
WaveBuff := nil;
end;
{ 1(µ¥Éù)»òÕß2(Á¢ÌåÉù) , { 8»òÕß16,´ú±í8λ»ò16λÉùÒô } { ÉùÒôƵÂÊ,Èç11025,22050, 44100}
procedure CreateWav(channels, resolution: word; rate: Integer;fn: string);
var
wf : file of TWavHeader;
wh : TWavHeader;
begin
wh.rId := $46464952;
wh.rLen := 36;
wh.wId := $45564157;
wh.fId := $20746d66;
wh.fLen := 16;
wh.wFormatTag := 1;
wh.nChannels := channels;
wh.nSamplesPerSec := rate;
wh.nAvgBytesPerSec := channels*rate*(resolution div 8);
wh.nBlockAlign := channels*(resolution div 8);
wh.wBitsPerSample := resolution;
wh.dId := $61746164;
wh.wSampleLength := 0;
system.assignfile(wf,fn); {´ò¿ª¶ÔÓ¦Îļþ }
rewrite(wf); {Òƶ¯Ö¸Õëµ½ÎļþÍ·}
write(wf,wh); {д½øÎļþÍ· }
closefile(wf); {¹Ø±ÕÎļþ }
end;function CreateAviFile(fname : string ; dwWidth , dwHeight ,idwRate : Integer ; pf : TPixelFormat; var pFile : Pointer; var pStream : Pointer) : Boolean;
var VideoInfo,AudioInfo: TAVIStreamInfo;
BitmapInfo: TBitmapInfoHeader;
BitmapInfoSize : Cardinal;
bitCount : Integer;
waveFormat : tWAVEFORMATEX ;
myopts : TAVICOMPRESSOPTIONS;
aopts : array[0..1] of TAVICOMPRESSOPTIONS;
ppsCompressed : Pointer;
dummy : Integer;
hr : HRESULT;
begin
Result := False;
if FileExists(fname) then DeleteFile(fname);
AVIFileInit;
try
case pf of
pf1bit: bitCount := 1;
pf4bit: bitCount := 4;
pf8bit: bitCount := 8;
pf15bit: bitCount := 15;
pf16bit: bitCount := 16;
pf24bit: bitCount := 24;
end;
if AVIFileOpen(pFile, PChar(fname), OF_WRITE or OF_CREATE , nil) <> 0 then Exit;
FillChar(VideoInfo, sizeof(VideoInfo), 0);
with VideoInfo do
begin
fccType := streamtypeVIDEO;
fccHandler := streamtypeDIVX;
dwFlags := 0;
dwSuggestedBufferSize := AlignBit(dwWidth, bitCount, 32) * Cardinal(abs(dwHeight));;
rcFrame.Right := dwWidth;
rcFrame.Bottom := dwHeight;
dwScale := 1;
dwRate := idwRate;
dwSampleSize := 0;
end;
if (AVIFileCreateStream(pFile, pStream, VideoInfo) <> 0) then Exit;
if hr <> 0 then hr := GetLastError;
FillChar(BitmapInfo, sizeof(TBitmapInfoHeader), 0);
with BitmapInfo do
begin
biSize := SizeOf(TBitmapInfoHeader);
biBitCount := bitCount;
biWidth := dwWidth;
biHeight := dwHeight;
biPlanes := 1;
biCompression := BI_RGB; // Always return data in RGB format
biSizeImage := AlignBit(biWidth, biBitCount, 32) * Cardinal(abs(biHeight));
end;
if (AVIStreamSetFormat(pStream, 0, @BitmapInfo, sizeof(TBitmapInfoHeader)) <> 0) then Exit;
finally end;
Result := True;
end;function WriteAviFile(pvideo : Pointer; var istep : Integer;pData : Pointer ; iw,ih : Integer; bufsize : Cardinal;bVertical : Boolean = False) : HRESULT;
var Dummy : Integer;
i,j,Fcurx,FDstx : Integer;
puf : PByte;
hmem : Cardinal;
psrc : pRGBArray;
pDst : pRGBArray;
begin
if bVertical then
begin
hmem := GlobalAlloc(GHND,iw * ih * 3);
puf := GlobalLock(hmem);
psrc := pRGBArray(pData) ;
pDst := pRGBArray(puf);
for i := 0 to ih - 1 do
begin
for j := 0 to iw - 1 do
begin
Fcurx := i * iw + j;
FDstx := (ih - 1 - i) * iw + j;
pDst[FDstx].rgbtBlue := psrc[Fcurx].rgbtBlue;
pDst[FDstx].rgbtGreen := psrc[Fcurx].rgbtGreen;
pDst[FDstx].rgbtRed := psrc[Fcurx].rgbtRed;
end;
end;
end;
if bVertical then
Result := AVIStreamWrite(pvideo, istep, 1, pDst, bufsize, AVIIF_KEYFRAME, Dummy, Dummy)
else
Result := AVIStreamWrite(pvideo, istep, 1, pData, bufsize, AVIIF_KEYFRAME, Dummy, Dummy);
Inc(istep);
if bVertical then
begin
GlobalUnlock(hmem);
GlobalFree(hmem);
end;
end;function CloseAViFile(var pFile,pStream : Pointer) : Boolean;
begin
if pStream <> nil then
AVIStreamRelease(pStream);
if pFile <> nil then
AVIFileRelease(pFile);
AVIFileExit;
pStream := nil;
pFile := nil;
end;
procedure Tfrmmain.StartRecord;
var dwRate : Integer;
begin
if (FVideoWidth = 0) or (FVideoHeight = 0) then Exit;
FRecordFile := FSaveFolder + FCombineFile;
if (mpMusic.Mode = mpPlaying) or (mpMusic.Mode = mpRecording) then mpMusic.Pause;
//创建音频文件
CreateWav(2,16,48000, ChangeFileExt(FRecordFile,'.wav'));
mpMusic.DeviceType := dtAutoSelect;
mpMusic.FileName := ChangeFileExt(FRecordFile,'.wav');
mpMusic.Open;
/开始录音
mpMusic.StartRecording;
//设置视频帧数
if FCamera is TPRCamera then
begin
{$IFDEF Large_Screen}
dwRate := 15;
FVideoDelay := 10;
{$else}
dwRate := 20;
FVideoDelay := 10;
{$ENDIF}
end
else if FCamera is TEDCamera then
begin
FVideoDelay := 0;
if FCamera.DeviceName = 'Canon EOS 600D' then
dwRate := 5
else if FCamera.DeviceName = 'Canon EOS 500D' then
dwRate := 7
else dwRate := 6;
end;
//创建AVI文件
CreateAviFile(FRecordFile,FVideoWidth,FVideoHeight,dwRate,pf24bit,PAVIFile,PAVIStream);
Start := True;
istep := 0;
FRecordTime := 0;
{$ENDIF}
end;
var
PAVIFile : Pointer;
PAVIStream : Pointer;
istep : Integer;
Start : Boolean;
FVideoDelay : Integer = 10;
FVideoWidth,FVideoHeight : Integer;//在视频预览回调函数中写入图像数据
if (PAVIFile <> nil) and (PAVIStream <> nil) and Start then
begin
WriteAviFile(PAVIStream,istep,bd.Scan0,bd.Width,bd.Height,bd.Height * bd.Stride,True);
Delay(FVideoDelay);
end;
//结束录制
Start := False;
CloseAViFile(PAVIFile,PAVIStream);
mpMusic.Stop;
mpMusic.Save;
mpMusic.Close;
//合并音频视频文件,音频和视频很难完全同步
AddWave(FRecordFile,ChangeFileExt(FRecordFile,'.wav'));
SysUtils.DeleteFile(ChangeFileExt(FRecordFile,'.wav'));
(稻草人)
谢谢你 这么多代码哦 学习一下先 我用的directdraw捕捉视频的 不懂的还请教你哦 非常感激
begin
Dec(Alignment);
Result := ((Bits * BitsPerPixel) + Alignment) and not Alignment;
Result := Result shr 3;
end;
(稻草人)
看到美女了,这么热心,,lz最好是真的美女哦