MODULE VideoExample; (** AUTHOR "thomas.frey@alumni.ethz.ch"; PURPOSE "Webcam support for WinA2"; *) (*PH 100317: proposal for more video formats from webcams and built-in cameras delivering YUV422 data *) IMPORT Modules, Kernel, KernelLog, GDI32, Kernel32, User32, SYSTEM, WMWindowManager, Strings, WMRectangles, WMGraphics, Raster, RasterPixelFormats, VfW, Codecs, Commands, Files, Streams; TYPE FrameHandler* = PROCEDURE {DELEGATE} (buffer : Raster.Image); PreviewWindow* = OBJECT (WMWindowManager.BufferWindow); PROCEDURE &New*(width, height : LONGINT); BEGIN Init(width, height, FALSE); WMWindowManager.AddWindow(SELF, 200, 200); SetTitle(Strings.NewString("Preview Window")); canvas.Fill(WMRectangles.MakeRect(0, 0, GetWidth(), GetHeight()), WMGraphics.White, WMGraphics.ModeCopy); Invalidate(WMRectangles.MakeRect(0, 0, GetWidth(), GetHeight())); END New; (* Overwrite draw procedure because we do not want any interpolation *) PROCEDURE Draw*(canvas : WMGraphics.Canvas; w, h, q : LONGINT); BEGIN Draw^(canvas, w, h, 0); END Draw; END PreviewWindow; Starter* = OBJECT VAR opened, stopped : BOOLEAN; PROCEDURE Open; VAR str : ARRAY 16 OF CHAR; name, version : ARRAY 64 OF CHAR; i : LONGINT; info : GDI32.BitmapInfoHeader; capRec : VfW.Capturerec; found : BOOLEAN; BEGIN opened := FALSE; str := ""; handle := VfW.CapCreateCaptureWindow(str, VfW.WS_POPUP, 0, 0, 1, 1, 0, 0); IF handle # 0 THEN i := 0; found := FALSE; WHILE ~found & (i < 10) DO IF VfW.CapGetDriverDescription(i, name, 64, version, 64) THEN IF VfW.CapDriverConnect(handle, i) THEN KernelLog.String("Connected to the driver"); KernelLog.Ln; IF VfW.CapGetVideoFormat(handle, info) THEN VfW.DumpBitmapInfoHeader(info); found:=TRUE; IF info.biCompression = 844715353 (*YUY2*) THEN (*keep it*) ELSE info.biBitCount := 24; (*info.biWidth := 960; info.biHeight := 720; *) info.biWidth := 640; info.biHeight := 480; IF VfW.CapSetVideoFormat(handle, info) THEN KernelLog.String("Set new info"); KernelLog.Ln; found := TRUE; ELSE KernelLog.String("SetVideoFormat failed"); KernelLog.Ln; IF VfW.CapDriverDisconnect(handle) THEN handle := 0; END; END; END; END; ELSE KernelLog.String("Connecting failed"); KernelLog.Ln END END; INC(i); END; IF found THEN IF VfW.CapGetSequenceSetup(handle, capRec) THEN VfW.DumpCapRec(capRec); (*capRec.dwRequestMicroSecPerFrame := 1000;*) capRec.wPercentDropForError := 100; (*capRec.fYield := 1;*) capRec.fAbortLeftMouse := 0; capRec.fAbortRightMouse := 0; IF VfW.CapSetSequenceSetup(handle, capRec) THEN KernelLog.String("new sequence setup"); KernelLog.Ln; END END; IF VfW.CapSetCallbackYield(handle, YieldCallback) THEN END; IF VfW.CapSetCallbackStream(handle, FrameReceived) THEN (* preview *) NEW(buffer); IF info.biCompression = 844715353 (*YUV422*) THEN Raster.Create(buffer, info.biWidth, info.biHeight, RasterPixelFormats.YUV422); ELSIF info.biBitCount = 24 THEN Raster.Create(buffer, info.biWidth, info.biHeight, Raster.BGR888); END; IF s # NIL THEN s.Close END; NEW(s, info.biWidth, info.biHeight); IF VfW.CapSequenceNoFile(handle) THEN END; END; END END END Open; PROCEDURE Stop; BEGIN stopped := TRUE; IF VfW.CapCaptureStop(handle) THEN KernelLog.String("Stoped"); KernelLog.Ln; END; END Stop; PROCEDURE MsgLoop; VAR msg: User32.Msg; i: LONGINT; BEGIN LOOP i := User32.GetMessage( msg, 0, 0, 0 ); IF i = 0 THEN EXIT ELSIF i # -1 THEN IF ( msg.message = User32.WMKeyDown ) THEN (* Translate virtual key code to character. This generates a WMChar message if translation succeeds. Since AOS doesn't allow ALT-Printable-Keys combinations, we don't translate User32.WMSysKeyDown messages that would generate WMSysChar messages *) i := User32.TranslateMessage( msg ); END; i := User32.DispatchMessage( msg ) END; Kernel32.Sleep( 1 ); END END MsgLoop; BEGIN {ACTIVE} stopped := FALSE; Open; MsgLoop; IF VfW.CapDriverDisconnect(handle) THEN KernelLog.String("Disonnected."); KernelLog.Ln; handle := 0; END END Starter; VAR s : PreviewWindow; handle : VfW.HWND; buffer : Raster.Image; starter : Starter; frameHandler : FrameHandler; (* Sends a single image through the video processing pipeline. *) PROCEDURE SimulateImage*(context : Commands.Context); (** filename ~ *) VAR fn, name : Files.FileName; res: WORD; w, h, x : LONGINT; dec : Codecs.ImageDecoder; rdr : Streams.Reader; ext : ARRAY 16 OF CHAR; BEGIN context.arg.SkipWhitespace; context.arg.String(fn); Strings.Trim(fn, '"'); Strings.GetExtension(fn, name, ext); Strings.UpperCase(ext); dec := Codecs.GetImageDecoder(ext); IF dec = NIL THEN context.error.String("No decoder found for "); context.error.String(ext); context.error.Ln; RETURN END; rdr := Codecs.OpenInputStream(fn); IF rdr # NIL THEN dec.Open(rdr, res); IF res = 0 THEN dec.GetImageInfo(w, h, x, x); IF (buffer = NIL) THEN NEW(buffer); Raster.Create(buffer, w, h, Raster.BGR888) END; IF s = NIL THEN NEW(s, buffer.width, buffer.height) END; dec.Render(buffer); IF (frameHandler # NIL) & (buffer # NIL) THEN frameHandler(buffer) END; IF buffer # NIL THEN s.canvas.DrawImage(0, 0, buffer, WMGraphics.ModeCopy) END; s.Invalidate(WMRectangles.MakeRect(0, 0, s.GetWidth(), s.GetHeight())) ELSE context.error.String("WMPicView: Could not open decoder for file "); context.error.String(fn); context.error.Ln; END; ELSE context.error.String("WMPicView: Could not open inputstream for file "); context.error.String(fn); context.error.Ln; END; END SimulateImage; PROCEDURE GetTimer():HUGEINT; VAR t : HUGEINT; res : Kernel32.BOOL; BEGIN res := Kernel32.QueryPerformanceCounter(SYSTEM.VAL(Kernel32.LargeInteger, t)); RETURN t; END GetTimer; PROCEDURE GetFreq():HUGEINT; VAR t : HUGEINT; res : Kernel32.BOOL; BEGIN res := Kernel32.QueryPerformanceFrequency(SYSTEM.VAL(Kernel32.LargeInteger, t)); RETURN t; END GetFreq; PROCEDURE {WINAPI} FrameReceived (hWnd : VfW.HWND; VAR lpVHdr : VfW.VHdr) : User32.LResult; VAR y : LONGINT; i : ADDRESS; t0, t1 : HUGEINT; t, f : LONGREAL; trap : BOOLEAN; bytesperpixel:LONGINT; BEGIN trap := TRUE; t0 := GetTimer(); IF s # NIL THEN i := lpVHdr.lpData; bytesperpixel:= buffer.fmt.bpp DIV 8; FOR y := buffer.height - 1 TO 0 BY -1 DO SYSTEM.MOVE(i, ADDRESSOF(buffer.mem[0]) + buffer.bpr * y, buffer.width * bytesperpixel); i := i + buffer.width * bytesperpixel; END; IF (frameHandler # NIL) & (buffer # NIL) THEN frameHandler(buffer) END; IF buffer # NIL THEN s.canvas.DrawImage(0, 0, buffer, WMGraphics.ModeCopy) END; s.Invalidate(WMRectangles.MakeRect(0, 0, s.GetWidth(), s.GetHeight())) END; t1 := GetTimer(); t := t1 - t0; f := GetFreq(); f := f / 1000; (*KernelLog.String("total = "); KernelLog.Int(ENTIER(t / f), 0); KernelLog.Ln; *) trap := FALSE; FINALLY IF trap THEN KernelLog.String("Handler failed, removing it."); KernelLog.Ln; frameHandler := NIL END; RETURN 1 END FrameReceived; PROCEDURE {WINAPI} YieldCallback(hWnd : VfW.HWND) : User32.LResult; VAR msg: User32.Msg; i, j: LONGINT; BEGIN REPEAT i := VfW.PeekMessage( msg, hWnd, 0, 0, 1 ); IF i # 0 THEN j := User32.DispatchMessage(msg) END UNTIL i = 0; RETURN 1 END YieldCallback; PROCEDURE SnapshotFirstPossible*; VAR str : ARRAY 16 OF CHAR; name, version : ARRAY 64 OF CHAR; i : LONGINT; timer : Kernel.Timer; info : GDI32.BitmapInfoHeader; BEGIN str := ""; handle := VfW.CapCreateCaptureWindow(str, VfW.WS_POPUP, 0, 0, 1, 1, 0, 0); IF handle = 0 THEN KernelLog.String("Failed to create the window"); KernelLog.Ln ELSE KernelLog.String("Created the window"); KernelLog.Ln; FOR i := 0 TO 9 DO IF VfW.CapGetDriverDescription(i, name, 64, version, 64) THEN KernelLog.String(name); KernelLog.String(" "); KernelLog.String(version); KernelLog.Ln; IF VfW.CapDriverConnect(handle, i) THEN KernelLog.String("Connected to the driver"); KernelLog.Ln; IF VfW.CapGetVideoFormat(handle, info) THEN VfW.DumpBitmapInfoHeader(info) END; IF info.biCompression=844715353 (*YUY2 format*) THEN (* keep it *) ELSE info.biBitCount := 24; info.biWidth := 640; info.biHeight := 480; IF VfW.CapSetVideoFormat(handle, info) THEN KernelLog.String("Set new info"); KernelLog.Ln; ELSE KernelLog.String("Setting new connection failed."); KernelLog.Ln; IF VfW.CapDriverDisconnect(handle) THEN KernelLog.String("Setting new connection failed. Disonnected."); KernelLog.Ln; handle := 0; END; END; END; IF VfW.CapSetCallbackStream(handle, FrameReceived) THEN (* preview *) NEW(buffer); IF info.biCompression = 844715353 (*YUV422*) THEN Raster.Create(buffer, info.biWidth, info.biHeight, RasterPixelFormats.YUV422); ELSIF info.biBitCount = 24 THEN Raster.Create(buffer, info.biWidth, info.biHeight, Raster.BGR888); END; IF s # NIL THEN s.Close END; NEW(s, info.biWidth, info.biHeight); IF VfW.CapSequenceNoFile(handle) THEN KernelLog.String("Started"); KernelLog.Ln; NEW(timer); timer.Sleep(10000); KernelLog.String("Stopping"); KernelLog.Ln; IF VfW.CapCaptureStop(handle) THEN KernelLog.String("Stop"); KernelLog.Ln; END END; (*FOR i := 0 TO 1000 DO IF CapGrabFrame(handle) THEN END; END*) END; IF VfW.CapDriverDisconnect(handle) THEN KernelLog.String("Disonnected."); KernelLog.Ln; handle := 0; END ELSE KernelLog.String("Connecting failed"); KernelLog.Ln END END END END END SnapshotFirstPossible; PROCEDURE Start*; BEGIN NEW(starter); END Start; PROCEDURE Stop*; BEGIN starter.Stop; END Stop; PROCEDURE InstallFrameHandler*(handler : FrameHandler); BEGIN frameHandler := handler END InstallFrameHandler; PROCEDURE Cleanup; BEGIN IF (handle = 0) & VfW.CapDriverDisconnect(handle) THEN KernelLog.String("Disconnected."); KernelLog.Ln; handle := 0; ELSE KernelLog.String("Disonnecting failed."); KernelLog.Ln; END; IF s # NIL THEN s.Close END END Cleanup; BEGIN Modules.InstallTermHandler(Cleanup) END VideoExample. VideoExample.Open ~ VideoExample.SimulateImage "Picture 1.jpg" ~ VideoExample.Start ~ VideoExample.Stop ~ System.Free TestVideo VideoExample VfW RasterPixelFormats~ Video compression formats in Windows (FOURCC identifiers) : 810961203 {3IV0} : result := 'MPEG4-based codec 3ivx'; 827738419 {3IV1} : result := 'MPEG4-based codec 3ivx'; 844515635 {3IV2} : result := 'MPEG4-based codec 3ivx'; 1482049843 {3IVX} : result := 'MPEG4-based codec 3ivx'; 1129529665 {AASC} : result := 'Autodesk Animator codec'; 1381581377 {ABYR} : result := 'Kensington codec'; 1229800769 {AEMI} : result := 'Array VideoONE MPEG1-I Capture'; 1129072193 {AFLC} : result := 'Autodesk Animator FLC (256 color)'; 1229735489 {AFLI} : result := 'Autodesk Animator FLI (256 color)'; 1196444993 {AMPG} : result := 'Array VideoONE MPEG'; 1296649793 {ANIM} : result := 'Intel RDX'; 825512001 {AP41} : result := 'AngelPotion Definitive (hack MS MP43)'; 827740993 {ASV1} : result := 'Asus Video V1'; 844518209 {ASV2} : result := 'Asus Video V2'; 1482052417 {ASVX} : result := 'Asus Video 2.0'; 844256577 {AUR2} : result := 'Aura 2 Codec - YUV 422'; 1095914817 {AURA} : result := 'Aura 1 Codec - YUV 411'; 1245992513 {AVDJ} : result := 'Avid Motion JPEG'; 1314018881 {AVRN} : result := 'Avid Motion JPEG'; 1380997697 {AZPR} : result := 'Quicktime Apple Video'; 1263421762 {BINK} : result := 'Bink Video (RAD Game Tools) (256 color)'; 808604738 {BT20} : result := 'Conexant (ex Brooktree) ProSummer MediaStream'; 1447253058 {BTCV} : result := 'Conexant Composite Video'; 1129731138 {BTVC} : result := 'Conexant Composite Video'; 808539970 {BW10} : result := 'Data Translation Broadway MPEG Capture/Compression'; 842089283 {CC12} : result := 'Intel YUV12 Codec'; 1129727043 {CDVC} : result := 'Canopus DV Codec'; 1128482371 {CFCC} : result := 'Conkrete DPS Perception Motion JPEG'; 1229211459 {CGDI} : result := 'Camcorder Video (MS Office 97)'; 1296123971 {CHAM} : result := 'WinNow Caviara Champagne'; 1196444227 {CJPG} : result := 'Creative Video Blaster Webcam Go JPEG'; 1380600899 {CLJR} : result := 'Cirrus Logic YUV 4:1:1'; 1264143683 {CMYK} : result := 'Common Data Format in Printing'; 1095520323 {CPLA} : result := 'Weitek YUV 4:2:0 Planar'; 1296126531 {CRAM} : result := 'Microsoft Video 1'; 1145656899 {CVID} : result := 'Cinepak by Radius YUV 4:2:2'; 1414289219 {CWLT} : result := 'Microsoft Color WLT DIB'; 1448433987 {CYUV} : result := 'Creative Labs YUV 4:2:2'; 1498765635 {CYUY} : result := 'ATI Technologies YUV'; 825635396 {D261} : result := 'H.261'; 859189828 {D263} : result := 'H.263'; 4344132 {DIB } : result := 'Full Frames (Uncompressed)'; 827738436 {DIV1} : result := 'FFmpeg-4 V1 (hacked MS MPEG-4 V1)'; 844515652 {DIV2} : result := 'FFmpeg-4 V2 (hacked MS MPEG-4 V2)'; 861292868 {DIV3} : result := 'DivX;-) MPEG-4 Low-Motion'; 878070084 {DIV4} : result := 'DivX;-) MPEG-4 Fast-Motion'; 894847300 {DIV5} : result := 'DivX MPEG-4'; 911624516 {DIV6} : result := 'DivX MPEG-4'; 1482049860 {DIVX} : result := 'OpenDivX (DivX 4.0 and later)'; 826428740 {DMB1} : result := 'Matrox Rainbow Runner hardware compression (Motion JPEG)'; 843205956 {DMB2} : result := 'Motion JPEG codec used by Paradigm'; 810766404 {DPS0} : result := 'DPS Reality Motion JPEG'; 1129533508 {DPSC} : result := 'DPS PAR Motion JPEG'; 1146508100 {DSVD} : result := 'Microsoft DirectShow DV'; 1262703940 {DUCK} : result := 'True Motion 1.0'; 892491332 {DV25} : result := 'Matrox DVCPRO codec'; 808801860 {DV50} : result := 'Matrox DVCPRO50 codec'; 4412996 {DVC } : result := 'MainConcept DV Codec'; 1346590276 {DVCP} : result := 'Sony Digital Video (DV)'; 843404868 {DVE2} : result := 'DVE-2 Videoconferencing Codec'; 1145591364 {DVHD} : result := 'DV 1125 lines at 30.00 Hz or 1250 lines at 25.00 Hz'; 1095587396 {DVMA} : result := 'Darim Vision DVMPEG'; 827545156 {DVS1} : result := 'DV compressed in SD (SDL)'; 1146312260 {DVSD} : result := 'Sony Digital Video (DV) 525 lines at 29.97 Hz or 625 lines at 25.00 Hz'; 827872836 {DVX1} : result := 'DVX1000SP Video Decoder'; 844650052 {DVX2} : result := 'DVX2000S Video Decoder'; 861427268 {DVX3} : result := 'DVX3000S Video Decoder'; 808802372 {DX50} : result := 'DivX 5.0 codec'; 827611204 {DXT1} : result := 'DirectX Compressed Texture'; 844388420 {DXT2} : result := 'DirectX Compressed Texture'; 861165636 {DXT3} : result := 'DirectX Compressed Texture'; 877942852 {DXT4} : result := 'DirectX Compressed Texture'; 894720068 {DXT5} : result := 'DirectX Compressed Texture'; 1129601092 {DXTC} : result := 'DirectX Texture Compression'; 810634053 {EKQ0} : result := 'Else graphics card codec'; 810241093 {ELK0} : result := 'Else graphics card codec'; 1446137157 {EM2V} : result := 'Etymonix MPEG-2 I-frame'; 1346589509 {ESCP} : result := 'Eidos Technologies Escape codec'; 827741253 {ETV1} : result := 'eTreppid Video Codec'; 844518469 {ETV2} : result := 'eTreppid Video Codec'; 1129731141 {ETVC} : result := 'eTreppid Video Codec'; 1347046470 {FLJP} : result := 'Field Encoded Motion JPEG (Targa emulation)'; 1096241734 {FRWA} : result := 'Darim Vision Forward Motion JPEG with Alpha-channel'; 1146573382 {FRWD} : result := 'Darim Vision Forward Motion JPEG'; 1415008838 {FRWT} : result := 'Darim Vision Forward Motion JPEG'; 1431786054 {FRWU} : result := 'Darim Vision Forward Uncompressed'; 826693190 {FVF1} : result := 'Fractal Video Frame'; 1464227398 {FVFW} : result := 'ff MPEG-4 based on XviD codec'; 1465535559 {GLZW} : result := 'Motion LZW by gabest@freemail.hu'; 1195724871 {GPEG} : result := 'Motion JPEG by gabest@freemail.hu (with floating point)'; 1414289223 {GWLT} : result := 'Microsoft Greyscale WLT DIB'; 808858184 {H260} : result := 'H.260'; 825635400 {H261} : result := 'H.261'; 842412616 {H262} : result := 'H.262'; 859189832 {H263} : result := 'Intel ITU H.263'; 875967048 {H264} : result := 'H.264'; 892744264 {H265} : result := 'H.265'; 909521480 {H266} : result := 'H.266'; 926298696 {H267} : result := 'H.267'; 943075912 {H268} : result := 'H.268'; 959853128 {H269} : result := 'H.263 for POTS-based videoconferencing'; 1431914056 {HFYU} : result := 'Huffman Lossless Codec YUV and RGB formats (with Alpha-channel)'; 1380142408 {HMCR} : result := 'Rendition Motion Compensation Format'; 1381125448 {HMRR} : result := 'Rendition Motion Compensation Format'; 859189833 {I263} : result := 'Intel ITU H.263'; 808596553 {I420} : result := 'Intel Indeo 4 H.263'; 5128521 {IAN } : result := 'Indeo 4 (RDX) Codec'; 1398161737 {IAVS} : result := 'interleaved audio and video stream'; 1112294217 {ICLB} : result := 'CellB Videoconferencing Codec'; 1380927305 {IGOR} : result := 'Power DVD'; 1196444233 {IJPG} : result := 'Intergraph JPEG'; 1129729097 {ILVC} : result := 'Intel Layered Video'; 1381387337 {ILVR} : result := 'ITU H.263+ Codec'; 1447317577 {IPDV} : result := 'Giga AVI DV Codec'; 825381449 {IR21} : result := 'Intel Indeo 2.1'; 1463898697 {IRAW} : result := 'Intel YUV Uncompressed'; 1448695113 {IUYV} : result := 'Interlaced version of UYVY (line order 0, 2, 4,....,1, 3, 5....)'; 808670793 {IV30} : result := 'Intel Indeo Video 3'; 825448009 {IV31} : result := 'Intel Indeo Video 3.1'; 842225225 {IV32} : result := 'Intel Indeo Video 3.2'; 859002441 {IV33} : result := 'Intel Indeo Video 3.3'; 875779657 {IV34} : result := 'Intel Indeo Video 3.4'; 892556873 {IV35} : result := 'Intel Indeo Video 3.5'; 909334089 {IV36} : result := 'Intel Indeo Video 3.6'; 926111305 {IV37} : result := 'Intel Indeo Video 3.7'; 942888521 {IV38} : result := 'Intel Indeo Video 3.8'; 959665737 {IV39} : result := 'Intel Indeo Video 3.9'; 808736329 {IV40} : result := 'Intel Indeo Video 4.0'; 825513545 {IV41} : result := 'Intel Indeo Video 4.1'; 842290761 {IV42} : result := 'Intel Indeo Video 4.2'; 859067977 {IV43} : result := 'Intel Indeo Video 4.3'; 875845193 {IV44} : result := 'Intel Indeo Video 4.4'; 892622409 {IV45} : result := 'Intel Indeo Video 4.5'; 909399625 {IV46} : result := 'Intel Indeo Video 4.6'; 926176841 {IV47} : result := 'Intel Indeo Video 4.7'; 942954057 {IV48} : result := 'Intel Indeo Video 4.8'; 959731273 {IV49} : result := 'Intel Indeo Video 4.9'; 808801865 {IV50} : result := 'Intel Indeo Video 5.0 Wavelet'; 825514313 {IY41} : result := 'Interlaced version of Y41P (line order 0, 2, 4,....,1, 3, 5....)'; 827677001 {IYU1} : result := '12 bit format used in mode 2 of the IEEE 1394 Digital Camera 1.04 spec'; 844454217 {IYU2} : result := '24 bit format used in mode 2 of the IEEE 1394 Digital Camera 1.04 spec'; 1448433993 {IYUV} : result := 'Intel Indeo iYUV 4:2:0'; 1195724874 {JPEG} : result := 'Still Image JPEG DIB'; 1279742026 {JPGL} : result := 'DIVIO JPEG Light for WebCams'; 1129729355 {KMVC} : result := 'Karl Morton Video Codec'; 1145128268 {LEAD} : result := 'LEAD Video Codec'; 1196444236 {LJPG} : result := 'LEAD Motion JPEG Codec'; 1297503052 {LSVM} : result := 'Vianet Lighting Strike Vmail (Streaming)'; 825635405 {M261} : result := 'Microsoft H.261'; 859189837 {M263} : result := 'Microsoft H.263'; 844313677 {M4S2} : result := 'Microsoft MPEG-4 (hacked MS MPEG-4)'; 842089293 {MC12} : result := 'ATI Motion Compensation Format'; 1296122701 {MCAM} : result := 'ATI Motion Compensation Format'; 1146504269 {MDVD} : result := 'Alex MicroDVD Video (hacked MS MPEG-4)'; 1127369293 {MJ2C} : result := 'Morgan Multimedia JPEG2000 Compression'; 1095780941 {MJPA} : result := 'Pinnacle Motion JPEG with Alpha-channel'; 1112558157 {MJPB} : result := 'Motion JPEG codec'; 1196444237 {MJPG} : result := 'IBM Motion JPEG including Huffman Tables'; 1397050701 {MMES} : result := 'Matrox MPEG-2 I-frame'; 842289229 {MP42} : result := 'Microsoft MPEG-4 V2'; 859066445 {MP43} : result := 'Microsoft MPEG-4 V3'; 1395937357 {MP4S} : result := 'Microsoft MPEG-4 (hacked MS MPEG-4)'; 1446269005 {MP4V} : result := 'Microsoft MPEG-4 (hacked MS MPEG-4)'; 1195724877 {MPEG} : result := 'Chromatic MPEG 1 Video I Frame'; 826757197 {MPG1} : result := 'FFmpeg-1'; 843534413 {MPG2} : result := 'FFmpeg-1'; 860311629 {MPG3} : result := 'Same as Low motion DivX MPEG-4'; 877088845 {MPG4} : result := 'Microsoft MPEG-4 V1'; 1229410381 {MPGI} : result := 'Sigma Design MPEG-1 I-frame'; 1196314701 {MPNG} : result := 'Motion PNG codec'; 1094931021 {MRCA} : result := 'FAST Multimedia MR Codec'; 1162629709 {MRLE} : result := 'Microsoft Run Length Encoding'; 827544397 {MSS1} : result := 'Windows Screen Video'; 1129730893 {MSVC} : result := 'Microsoft Video 1'; 1213879117 {MSZH} : result := 'Lossless codec (ZIP compression)'; 827872333 {MTX1} : result := 'Matrox codec'; 844649549 {MTX2} : result := 'Matrox codec'; 861426765 {MTX3} : result := 'Matrox codec'; 878203981 {MTX4} : result := 'Matrox codec'; 894981197 {MTX5} : result := 'Matrox codec'; 911758413 {MTX6} : result := 'Matrox codec'; 928535629 {MTX7} : result := 'Matrox codec'; 945312845 {MTX8} : result := 'Matrox codec'; 962090061 {MTX9} : result := 'Matrox codec'; 827742029 {MWV1} : result := 'Aware Motion Wavelets'; 1230389582 {NAVI} : result := 'nAVI video codec (hacked MS MPEG-4)'; 808473678 {NT00} : result := 'NewTek LigtWave HDTV YUV with Alpha-channel'; 827216974 {NTN1} : result := 'Nogatech Video Compression 1'; 827741518 {NUV1} : result := 'NuppelVideo'; 810767950 {NVS0} : result := 'Nvidia texture compression format'; 827545166 {NVS1} : result := 'Nvidia texture compression format'; 844322382 {NVS2} : result := 'Nvidia texture compression format'; 861099598 {NVS3} : result := 'Nvidia texture compression format'; 877876814 {NVS4} : result := 'Nvidia texture compression format'; 894654030 {NVS5} : result := 'Nvidia texture compression format'; 810833486 {NVT0} : result := 'Nvidia texture compression format'; 827610702 {NVT1} : result := 'Nvidia texture compression format'; 844387918 {NVT2} : result := 'Nvidia texture compression format'; 861165134 {NVT3} : result := 'Nvidia texture compression format'; 877942350 {NVT4} : result := 'Nvidia texture compression format'; 894719566 {NVT5} : result := 'Nvidia texture compression format'; 1129727056 {PDVC} : result := 'Panasonic DV codec'; 1448494928 {PGVV} : result := 'Radius Video Vision Telecast (adaptive JPEG)'; 1330464848 {PHMO} : result := 'Photomotion'; 827148624 {PIM1} : result := 'Pegasus Imaging codec'; 843925840 {PIM2} : result := 'Pegasus Imaging codec'; 1246579024 {PIMJ} : result := 'Pegasus Imaging PICvideo Lossless JPEG'; 1514493520 {PVEZ} : result := 'Horizons Technology PowerEZ codec'; 1296914000 {PVMM} : result := 'PacketVideo Corporation MPEG-4'; 844584528 {PVW2} : result := 'Pegasus Imaging Wavelet 2000'; 808333649 {Q1.0} : result := 'Q-Team QPEG 1.0'; 1195724881 {QPEG} : result := 'Q-Team QPEG 1.1'; 1363497041 {QPEQ} : result := 'Q-Team QPEG 1.1'; 5718354 {RAW } : result := 'Full Frames (Uncompressed)'; 4343634 {RGB } : result := 'Full Frames (Uncompressed)'; 1094862674 {RGBA} : result := 'Raw RGB with alpha'; 1413629778 {RGBT} : result := 'Uncompressed RGB with transparency'; 876956754 {RLE4} : result := 'Run length encoded 4bpp RGB image'; 944065618 {RLE8} : result := 'Run length encoded 8bpp RGB image'; 4541522 {RLE } : result := 'Raw RGB with arbitrary sample packing within a pixel'; 877677906 {RMP4} : result := 'REALmagic MPEG-4 Video Codec'; 1096437842 {RPZA} : result := 'Apple Video 16 bit "road pizza"'; 825381970 {RT21} : result := 'Intel Real Time Video 2.1'; 809784658 {RUD0} : result := 'Rududu video codec'; 808539730 {RV10} : result := 'RealVideo codec'; 858871378 {RV13} : result := 'RealVideo codec'; 808605266 {RV20} : result := 'RealVideo G2'; 808670802 {RV30} : result := 'RealVideo 8'; 5789266 {RVX } : result := 'Intel RDX'; 842150995 {S422} : result := 'VideoCap C210 YUV Codec'; 1128481875 {SDCC} : result := 'Sun Digital Camera Codec'; 1129137747 {SFMC} : result := 'Crystal Net SFM Codec'; 1196444243 {SJPG} : result := 'White Pine (ex Paradigm Matrix) Motion JPEG'; 4410707 {SMC } : result := 'Apple Graphics (SMC) codec (256 color)'; 1129532755 {SMSC} : result := 'Radius proprietary codec'; 1146309971 {SMSD} : result := 'Radius proprietary codec'; 1448299859 {SMSV} : result := 'WorldConnect Wavelet Streaming Video'; 1195987027 {SPIG} : result := 'Radius Spigot'; 1129074771 {SPLC} : result := 'Splash Studios ACM Audio Codec'; 844779859 {SQZ2} : result := 'Microsoft VXTreme Video Codec V2'; 1096176723 {STVA} : result := 'ST CMOS Imager Data (Bayer)'; 1112953939 {STVB} : result := 'ST CMOS Imager Data (Nudged Bayer)'; 1129731155 {STVC} : result := 'ST CMOS Imager Data (Bunched)'; 1482052691 {STVX} : result := 'ST CMOS Imager Data (Extended)'; 1498829907 {STVY} : result := 'ST CMOS Imager Data (Extended with Correction Data)'; 808539731 {SV10} : result := 'Sorenson Media Video R1'; 827414099 {SVQ1} : result := 'Sorenson Video (Apple Quicktime 3)'; 860968531 {SVQ3} : result := 'Sorenson Video 3 (Apple Quicktime 5)'; 808596564 {T420} : result := 'Toshiba YUV 4:2:0'; 1397574740 {TLMS} : result := 'TeraLogic Motion Infraframe Codec A'; 1414745172 {TLST} : result := 'TeraLogic Motion Infraframe Codec B'; 808602964 {TM20} : result := 'Duck TrueMotion 2.0'; 1093815636 {TM2A} : result := 'Duck TrueMotion Archiver 2.0'; 1479691604 {TM2X} : result := 'Duck TrueMotion 2X'; 1128877396 {TMIC} : result := 'TeraLogic Motion Intraframe Codec 2'; 1414483284 {TMOT} : result := 'TrueMotion Video Compression'; 808604244 {TR20} : result := 'Duck TrueMotion RT 2.0'; 1128485716 {TSCC} : result := 'TechSmith Screen Capture Codec'; 808539732 {TV10} : result := 'Tecomac Low-Bit Rate Codec'; 1246582356 {TVMJ} : result := 'Field Encoded Motion JPEG (Targa emulation)'; 1311791444 {TY0N} : result := 'Trident Decompression Driver'; 1127373140 {TY2C} : result := 'Trident Decompression Driver'; 1311922516 {TY2N} : result := 'Trident Decompression Driver'; 859189845 {U263} : result := 'UB Video StreamForce H.263'; 1146045269 {UCOD} : result := 'ClearVideo (fractal compression-based codec)'; 1230261333 {ULTI} : result := 'IBM Corp. Ultimotion'; 1447975253 {UYNV} : result := 'A direct copy of UYVY registered by NVidia to work around problems in some old codecs which did not like hardware which offered more than 2 UYVY surfaces'; 1347836245 {UYVP} : result := 'YCbCr 4:2:2 extended precision 10-bits per component in U0Y0V0Y1 order'; 1498831189 {UYVY} : result := 'YUV 4:2:2 (Y sample at every pixel, U and V sampled at every second pixel horizontally on each line)'; 825635414 {V261} : result := 'Lucent VX2000S'; 842150998 {V422} : result := 'Vitec Multimedia YUV 4:2:2 as for UYVY but with different component ordering within the u_int32 macropixel'; 892679766 {V655} : result := 'Vitec Multimedia 16 bit YUV 4:2:2 (6:5:5) format'; 827474774 {VCR1} : result := 'ATI VCR 1.0'; 844251990 {VCR2} : result := 'ATI VCR 2.0 (MPEG YV12)'; 861029206 {VCR3} : result := 'ATI VCR 3.0'; 877806422 {VCR4} : result := 'ATI VCR 4.0'; 894583638 {VCR5} : result := 'ATI VCR 5.0'; 911360854 {VCR6} : result := 'ATI VCR 6.0'; 928138070 {VCR7} : result := 'ATI VCR 7.0'; 944915286 {VCR8} : result := 'ATI VCR 8.0'; 961692502 {VCR9} : result := 'ATI VCR 9.0'; 1413694550 {VDCT} : result := 'Video Maker Pro DIB'; 1297040470 {VDOM} : result := 'VDOnet VDOWave'; 1464812630 {VDOW} : result := 'VDOLive (H.263)'; 1515471958 {VDTZ} : result := 'Darim Vision VideoTizer YUV'; 1481656150 {VGPX} : result := 'Alaris VGPixel Codec'; 1396984150 {VIDS} : result := 'Vitec Multimedia YUV 4:2:2 codec'; 1346783574 {VIFP} : result := 'Virtual Frame API codec (VFAPI)'; 827738454 {VIV1} : result := 'Vivo H.263'; 844515670 {VIV2} : result := 'Vivo H.263'; 1331054934 {VIVO} : result := 'Vivo H.263'; 1280854358 {VIXL} : result := 'miroVideo XL'; 827739222 {VLV1} : result := 'VideoLogic codec'; 808669270 {VP30} : result := 'On2 (ex Duck TrueMotion) VP3'; 825446486 {VP31} : result := 'On2 (ex Duck TrueMotion) VP3'; 1261525078 {VX1K} : result := 'Lucent VX1000S Video Codec'; 1261590614 {VX2K} : result := 'Lucent VX2000S Video Codec'; 1347639382 {VXSP} : result := 'Lucent VX1000SP Video Codec'; 1129726551 {WBVC} : result := 'Winbond W9960 codec'; 1296123991 {WHAM} : result := 'Microsoft Video 1'; 1481525591 {WINX} : result := 'Winnov Software Compression'; 1196444247 {WJPG} : result := 'Winbond JPEG'; 827739479 {WMV1} : result := 'Windows Media Video 7'; 844516695 {WMV2} : result := 'Windows Media Video 8'; 861293911 {WMV3} : result := 'Windows Media Video 9'; 827739735 {WNV1} : result := 'WinNow Videum Hardware Compression'; 859189848 {X263} : result := 'Xirlink H.263'; 810962008 {XLV0} : result := 'NetXL Inc. XL Video Decoder'; 1196445016 {XMPG} : result := 'XING MPEG (I frame only)'; 1145656920 {XVID} : result := 'XviD MPEG-4 codec'; 825307737 {Y211} : result := 'Packed YUV format with Y sampled at every second pixel across each line and U and V sampled at every fourth pixel'; 825308249 {Y411} : result := 'YUV 4:1:1 Packed'; 1110520921 {Y41B} : result := 'YUV 4:1:1 Planar'; 1345401945 {Y41P} : result := 'Conexant (ex Brooktree) YUV 4:1:1 Raw'; 1412510809 {Y41T} : result := 'Format as for Y41P but the lsb of each Y component is used to signal pixel transparency'; 842151001 {Y422} : result := 'Direct copy of UYVY as used by ADS Technologies Pyro WebCam firewire camera'; 1110586457 {Y42B} : result := 'YUV 4:2:2 Planar'; 1412576345 {Y42T} : result := 'Format as for UYVY but the lsb of each Y component is used to signal pixel transparency'; 808466521 {Y800} : result := 'Simple grayscale video'; 536885337 {Y8 } : result := 'Simple grayscale video'; 842089305 {YC12} : result := 'Intel YUV12 Codec'; 1447974233 {YUNV} : result := 'A direct copy of YUY2 registered by NVidia to work around problems in some old codecs which did not like hardware which offered more than 2 YUY2 surfaces'; 945182041 {YUV8} : result := 'Winnov Caviar YUV8'; 961959257 {YUV9} : result := 'Intel YUV9'; 1347835225 {YUVP} : result := 'YCbCr 4:2:2 extended precision 10-bits per component in Y0U0Y1V0 order'; 844715353 {YUY2} : result := 'YUV 4:2:2 as for UYVY but with different component ordering within the u_int32 macropixel'; 1448695129 {YUYV} : result := 'Canopus YUV format'; 842094169 {YV12} : result := 'ATI YVU12 4:2:0 Planar'; 961893977 {YVU9} : result := 'Brooktree YVU9 Raw (YVU9 Planar)'; 1431918169 {YVYU} : result := 'YUV 4:2:2 as for UYVY but with different component ordering within the u_int32 macropixel'; 1112099930 {ZLIB} : result := 'Lossless codec (ZIP compression)'; 1195724890 {ZPEG} : result := 'Metheus Video Zipper'; else result := W_STR_07;