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HxImageSeqAVIMedia Class Reference

Read image sequence files using DirectMedia library. More...

#include <HxImageSeqAVIMedia.h>

Inheritance diagram for HxImageSeqAVIMedia::

HxImageSeqData HxRcObject List of all members.

Public Methods

 HxImageSeqAVIMedia (HxString fileName, int bufSize)
 Constructor. More...

virtual ~HxImageSeqAVIMedia ()
 Destructor. More...

virtual int valid ()
 Is this a valid object? More...

virtual int frameWidth ()
 The frame width. More...

virtual int frameHeight ()
 The frame height. More...

virtual int frameDepth ()
 The frame depth. More...

virtual int nrFrames ()
 The number of frames. More...

virtual void getRgb2d (int fn, int *pixels, HxString displayMode)
 Display the specified frame in the given buffer in ARGB format using the given displayMode. More...

virtual void getRgbPixels2d (int fn, int *pixels, HxString displayMode, int resWidth, int resHeight, HxGeoIntType gi)
 Display the specified frame in the given buffer in ARGB format using the given displayMode. More...

virtual HxImageRep frame2HxImageRep (int)
 "construct" an HxImageRep for the specified frame. More...

Detailed Description

Read image sequence files using DirectMedia library.

Constructor & Destructor Documentation

HxImageSeqAVIMedia::HxImageSeqAVIMedia (  HxString    fileName,
int    bufSize
) 
 

Constructor. 

00021     : HxImageSeqData(bufSize)
00022 {
00023     _handle = HxAVILoadVideo(fileName.c_str());
00024     if (_handle) {
00025         _sizes = HxSizes(frameWidth(), frameHeight(), 1);
00026     } else {
00027         HxEnvironment::instance()->errorStream() <<
00028             "HxImageSeqAVIMedia : unable to load file " << fileName << STD_ENDL;
00029         HxEnvironment::instance()->flush();
00030     }
00031 }

HxImageSeqAVIMedia::~HxImageSeqAVIMedia (    )  [virtual]
 

Destructor. 

00040 {
00041     if (_handle)
00042     {
00043         HxAVICloseVideo(_handle);
00044     }
00045 }

Member Function Documentation

int HxImageSeqAVIMedia::valid (    )  [virtual]
 

Is this a valid object?

Reimplemented from HxImageSeqData. 

00035 {
00036     return (_handle != NULL);
00037 }

int HxImageSeqAVIMedia::frameWidth (    )  [virtual]
 

The frame width.

Reimplemented from HxImageSeqData. 

00049 {
00050     return (_handle) ? HxAVIGetFrameWidth(_handle) : -1;
00051 }

int HxImageSeqAVIMedia::frameHeight (    )  [virtual]
 

The frame height.

Reimplemented from HxImageSeqData. 

00055 {
00056     return (_handle) ? HxAVIGetFrameHeight(_handle) : -1;
00057 }

int HxImageSeqAVIMedia::frameDepth (    )  [virtual]
 

The frame depth.

Reimplemented from HxImageSeqData. 

00061 {
00062     return 1;
00063 }

int HxImageSeqAVIMedia::nrFrames (    )  [virtual]
 

The number of frames.

Reimplemented from HxImageSeqData. 

00067 {
00068     return (_handle) ? HxAVIGetLength(_handle) : 0;
00069 }

void HxImageSeqAVIMedia::getRgb2d (  int    fn,
int *    pixels,
HxString    displayMode
)  [virtual]
 

Display the specified frame in the given buffer in ARGB format using the given displayMode.

Optimized version : does not require HxImageRep.

Reimplemented from HxImageSeqData. 

00086 {
00087     if(!_handle) return;
00088 
00089     if(displayMode == "Direct") getRgbPixels2d(fn, pixels);
00090     else
00091         HxImageSeqData::getRgb2d(fn, pixels, displayMode);
00092 }

void HxImageSeqAVIMedia::getRgbPixels2d (  int    fn,
int *    pixels,
HxString    displayMode,
int    resWidth,
int    resHeight,
HxGeoIntType    gi
)  [virtual]
 

Display the specified frame in the given buffer in ARGB format using the given displayMode.

Optimized version : does not require HxImageRep.

Reimplemented from HxImageSeqData. 

00074 {
00075     if(!_handle) return;
00076 
00077     if((displayMode == "Direct") && (resWidth == -1) && (resHeight == -1))  
00078         getRgbPixels2d(fn, pixels);
00079     else
00080         HxImageSeqData::getRgbPixels2d(fn, pixels, displayMode, 
00081             resWidth, resHeight, gi);
00082 }

HxImageRep HxImageSeqAVIMedia::frame2HxImageRep (  int    fn )  [virtual]
 

"construct" an HxImageRep for the specified frame.

Reimplemented from HxImageSeqData. 

00114 {
00115     HxImageSignature sig(2, 3, INT_VALUE, 8);
00116     unsigned char* data = HxAVIGetFrame(_handle, fn);
00117     if (data) {
00118         //HxTagList tags;
00119         //HxAddTag(tags, "dataPtr", data);
00120         //return HxImageFactory::instance().fromImport(sig, _sizes, 
00121         //  "importBgr", tags);
00122 
00123         HxImageRep im = HxMakeFromByteData(3, 2, _sizes, data);
00124         return im;
00125     }
00126     HxImageRep im2 = HxMakeFromSignature(sig, _sizes);
00127     return im2;
00128 }

The documentation for this class was generated from the following files:
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