JpegImageWriter Class Reference
writes an image stage to a JPEG file More...
#include <JpegImageWriter.h>
Inheritance diagram for JpegImageWriter:
Public Member Functions | |
| JpegImageWriter (void) | |
| virtual | ~JpegImageWriter (void) |
| LT_STATUS | initialize (LTIImageStage *imageStage, lt_int32 quality=0, lt_int32 smoothing=0) |
| initialize More... | |
| LT_STATUS | writeBegin (const LTIScene &scene) |
| begin an encode (write) operation More... | |
| LT_STATUS | writeStrip (LTISceneBuffer &stripBuffer, const LTIScene &stripScene) |
| encode one strip of the scene More... | |
| LT_STATUS | writeEnd () |
| complete an encode (write) operation More... | |
 Public Member Functions inherited from LTIGeoFileImageWriter | |
| virtual | ~LTIGeoFileImageWriter () |
| virtual LT_STATUS | deleteOutput (void) |
| clean up a failed encode (write) operation More... | |
| virtual LT_STATUS | setOutputFileSpec (const LTFileSpec &fileSpec) |
| set output file name More... | |
| virtual LT_STATUS | setOutputFileSpec (const char *fileSpec) |
| set output file name More... | |
| virtual LT_STATUS | setOutputStream (LTIOStreamInf *stream) |
| set output file stream More... | |
| virtual void | setWriteWorldFile (bool enabled) |
| enable writing of world file More... | |
| Public Member Functions inherited from LTIImageWriter | |
| virtual | ~LTIImageWriter () |
| virtual LT_STATUS | write (const LTIScene &scene) |
| write (encode) a scene to the output format More... | |
| LT_STATUS | setStripHeight (lt_uint32 stripHeight) |
| set the stripheight for the encode More... | |
| lt_uint32 | getStripHeight (void) const |
| get the stripheight for the encode More... | |
| virtual lt_uint32 | getDefaultStripHeight (void) const |
| get the preferred stripheight for the encode More... | |
| virtual lt_int64 | getEncodingCost (const LTIScene &scene) const |
| get the cost to encode the scene More... | |
| void | setProgressDelegate (LTIProgressDelegate *delegate) |
| set progress delegate More... | |
| void | setInterruptDelegate (LTIInterruptDelegate *delegate) |
| set interrupt delegate More... | |
| const LTIImageStage * | getSourceImageStage (void) const |
| get the source image stage More... | |
| LTIProgressDelegate * | getProgressDelegate (void) const |
| get progress delegate More... | |
| LTIInterruptDelegate * | getInterruptDelegate (void) const |
| get interrupt delegate More... | |
| virtual LT_STATUS | setEncodingApplication (const char *name, const char *version, const char *comment=NULL) |
| set name and version of the creating application More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from LTIGeoFileImageWriter | |
| LTIGeoFileImageWriter (bool supportsStreams) | |
| constructor More... | |
| LTIOStreamInf * | getStream () const |
| get underlying stream More... | |
| LTFileSpec * | getFileSpec () const |
| get target filename More... | |
| Protected Member Functions inherited from LTIImageWriter | |
| LTIImageWriter (void) | |
| LT_STATUS | init (LTIImageStage *imageStage) |
| initialization function More... | |
| LT_STATUS | writeCleanup (LT_STATUS sts) |
| Protected Attributes inherited from LTIImageWriter | |
| LTIImageStage * | m_image |
Detailed Description
This class writes an image stage to a JPEG file.
- Examples:
- DecodeJP2ToJPG.cpp.
Definition at line 31 of file JpegImageWriter.h.
Constructor & Destructor Documentation
§ JpegImageWriter()
| JpegImageWriter::JpegImageWriter | ( | void | ) |
§ ~JpegImageWriter()
|
virtual |
Member Function Documentation
§ initialize()
| LT_STATUS JpegImageWriter::initialize | ( | LTIImageStage * | imageStage, |
| lt_int32 | quality = 0, |
||
| lt_int32 | smoothing = 0 |
||
| ) |
Initialize a writer for JPEG images.
- Parameters
-
imageStage the image to write from quality sets the JPEG "quality" encoding parameter; this is a value between 0 and 100 smoothing sets the JPEG "smoothing" encoding parameter; this is a value between 0 and 100
§ writeBegin()
This function implements the logic for beginning the encoding of the given scene.
The scene must be a valid scene for the underlying image pipeline.
This function is called by write(). Derived classes must implement this function.
- Parameters
-
scene the scene to decode and output
- Returns
- status code indicating success or failure
Reimplemented from LTIGeoFileImageWriter.
§ writeEnd()
|
virtual |
This function implements the logic for completing the encoding of the given scene.
This function is called by write(). Derived classes must implement this function.
- Returns
- status code indicating success or failure
Reimplemented from LTIGeoFileImageWriter.
§ writeStrip()
|
virtual |
This function implements the logic for actually encoding a given strip of the given scene.
This function is called by write(). Derived classes must implement this function.
- Parameters
-
stripBuffer the pixels for the current strip stripScene the scene representing the strip being written
- Returns
- status code indicating success or failure
Implements LTIGeoFileImageWriter.
The documentation for this class was generated from the following file: