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/*
reads/parse slice infos
Copyright (C) 1999 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 "slice.h"
Slice::Slice() {
mpegExtension=new MpegExtension();
}
Slice::~Slice() {
delete mpegExtension;
}
unsigned int Slice::getVertPos() {
return vert_pos;
}
void Slice::setQuantScale(unsigned int quant_scale) {
this->quant_scale=quant_scale;
}
/*
*--------------------------------------------------------------
*
* ParseSlice --
*
* Parses off slice header.
*
* Results:
* Values found in slice header put into video stream structure.
*
* Side effects:
* Bit stream irreversibly parsed.
*
*--------------------------------------------------------------
*/
int Slice::parseSlice(MpegVideoStream* mpegVideoStream) {
/* Flush slice start code. */
mpegVideoStream->flushBits(24);
/* Parse off slice vertical position. */
/* its the "slice number" */
vert_pos=mpegVideoStream->getBits(8);
/* Parse off quantization scale. */
quant_scale=mpegVideoStream->getBits(5);
/* Parse off extra bit slice info. */
mpegExtension->processExtra_bit_info(mpegVideoStream);
return true;
}
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