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/*
raw yuv stream player
Copyright (C) 2000 Martin Vogt
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation.
For more information look at the file COPYRIGHT in this package
*/
#include "yuvPlugin.h"
#include <iostream>
using namespace std;
YUVPlugin::YUVPlugin() {
init();
}
YUVPlugin::~YUVPlugin() {
}
void YUVPlugin::init() {
lCalcLength=false;
nWidth=0;
nHeight=0;
imageType=PICTURE_YUVMODE_CR_CB;
picPerSec=1.0;
}
void YUVPlugin::decoder_loop() {
cout << "YUVPlugin::decoder_loop() 1"<<endl;
if (input == NULL) {
cout << "YUVPlugin::decoder_loop input is NULL"<<endl;
exit(0);
}
if (output == NULL) {
cout << "YUVPlugin::decoder_loop output is NULL"<<endl;
exit(0);
}
PictureArray* pictureArray;
int bytes=nWidth*nHeight;
if ( (imageType == PICTURE_YUVMODE_CR_CB) ||
(imageType == PICTURE_YUVMODE_CB_CR) ) {
bytes=bytes+bytes/2;
}
if ( (imageType == PICTURE_RGB) ||
(imageType == PICTURE_RGB_FLIPPED) ) {
bytes=bytes*4;
}
// decode loop
while(runCheck()) {
switch(streamState) {
case _STREAM_STATE_FIRST_INIT :
output->openWindow(nWidth,nHeight,(char*)"yuv Viewer");
pictureArray=output->lockPictureArray();
cout << "pictureArray->setImageType"<<endl;
pictureArray->setImageType(imageType);
setStreamState(_STREAM_STATE_INIT);
break;
case _STREAM_STATE_INIT :
setStreamState(_STREAM_STATE_PLAY);
break;
case _STREAM_STATE_PLAY : {
// we read from input raw yuv bytes
// and display them.
pictureArray=output->lockPictureArray();
// now we have the color info
YUVPicture* pic=pictureArray->getPast();
unsigned char* dest=pic->getImagePtr();
input->read((char*)dest,bytes);
pic->setPicturePerSecond(picPerSec);
// now inform subsystem about the frame to display
pictureArray->setYUVPictureCallback(pic);
// display it
output->unlockPictureArray(pictureArray);
pictureArray->setYUVPictureCallback(NULL);
break;
}
case _STREAM_STATE_WAIT_FOR_END:
// exit while loop
lDecoderLoop=false;
cout << "mpegplugin _STREAM_STATE_WAIT_FOR_END"<<endl;
break;
default:
cout << "unknown stream state:"<<streamState<<endl;
}
}
cout << "*********mpegPLugin exit"<<endl;
output->flushWindow();
// copy sequence back if needed
cout << "delete mpegVideoStream"<<endl;
}
// here we can config our decoder with special flags
void YUVPlugin::config(const char* key,const char* value,void* user_data) {
if (strcmp(key,"-c")==0) {
lCalcLength=false;
}
if (strcmp(key,"height")==0) {
nHeight=atoi(value);
}
if (strcmp(key,"width")==0) {
nWidth=atoi(value);
}
if (strcmp(key,"imageType")==0) {
imageType=atoi(value);
cout << "imageType:"<<imageType<<endl;
}
if (strcmp(key,"picPerSec")==0) {
picPerSec=atoi(value);
}
DecoderPlugin::config(key,value,user_data);
}
int YUVPlugin::getSongLength() {
int back=0;
return back;
}
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