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ColorReductionAdaptor Class Reference

Implementation of Adaptor that removes U and V component in a MPEG4 VES. <short description="">. More...

#include <ColorReductionAdaptor.hpp>

Inheritance diagram for ColorReductionAdaptor:

VideoAdaptorChain AdaptorChain Adaptor List of all members.

Public Member Functions

 ColorReductionAdaptor (VideoESInfo *pESInfo, u32 keyFrameInterval=30, u32 bitrate=0, MP4Decoder::meCoderType coderType=MP4Decoder::FFMPEG)
 Constructor.
virtual ~ColorReductionAdaptor ()
 Destructor.
Adaptor * clone ()
 Create a shallow copy of the Adaptor.
void initialize ()
 Initialize internal data structures.

Protected Attributes

u32 keyFrameInterval
u32 targetBitrate
MP4Decoder::meCoderType codec

Detailed Description

Implementation of Adaptor that removes U and V component in a MPEG4 VES. <short description="">.

Author:
Michael Kropfberger and Peter Schojer
Version:
Id
ColorReductionAdaptor.hpp,v 1.5 2004/05/27 17:56:53 pschojer Exp

Definition at line 65 of file ColorReductionAdaptor.hpp.

Constructor & Destructor Documentation

ColorReductionAdaptor::ColorReductionAdaptor (  VideoESInfo *  pESInfo,
u32  keyFrameInterval = 30,
u32  bitrate = 0,
MP4Decoder::meCoderType  coderType = MP4Decoder::FFMPEG
) 
 

Constructor.

Average Bitrate of ESInfo object will be reduced by 20%, which is approximately the proportion of color in the VES.

Parameters:
pESInfo Pointer to ESInfo object.
Definition at line 46 of file ColorReductionAdaptor.cpp.

References MP4Decoder::meCoderType.

Referenced by clone().

00048 {
00049     es = pESInfo;
00050     initialized = false;
00051     keyFrameInterval = key;
00052         targetBitrate=bitrate;
00053         strcpy(name,"ColorReductionAdaptor");
00054         codec=coderType;
00055         dprintf_full("ColorReductionAdaptor::ColorReductionAdaptor Codec %i\n",(int)coderType);
00056 }

ColorReductionAdaptor::~ColorReductionAdaptor (   )  [virtual]
 

Destructor.

Definition at line 71 of file ColorReductionAdaptor.cpp.

00072 {
00073 }

Member Function Documentation

Adaptor * ColorReductionAdaptor::clone (   )  [virtual]
 

Create a shallow copy of the Adaptor.

Creates an Adaptor with the same setup (without copying the current status).

Returns:
An Adaptor object.

Reimplemented from VideoAdaptorChain.

Definition at line 75 of file ColorReductionAdaptor.cpp.

References ColorReductionAdaptor().

00076 {
00077     return new ColorReductionAdaptor(es,keyFrameInterval,targetBitrate,codec);
00078 }

void ColorReductionAdaptor::initialize (   )  [virtual]
 

Initialize internal data structures.

Reimplemented from AdaptorChain.

Definition at line 58 of file ColorReductionAdaptor.cpp.

References AdaptorChain::addAdaptor().

00059 {
00060         if(initialized)
00061                 return;
00062 
00063   addAdaptor(new MP4Decoder(es, false, UncompressedVideoFrame::ColorSpaceI420, codec));
00064   addAdaptor(new YUVColorReductionAdaptor(es));
00065         if(targetBitrate==0 || targetBitrate>es->getAvgBandwidth())
00066                 targetBitrate=es->getAvgBandwidth() * 80 / 100;
00067   addAdaptor(new MP4Encoder(es, targetBitrate, (int)es->getFPS(), keyFrameInterval, 0 /*BVOPs*/, UncompressedVideoFrame::ColorSpaceI420, codec));
00068   initialized = true;
00069 };

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