misc/quazip/quacrc32.cpp
author Stepan777 <stepik-777@mail.ru>
Sun, 24 Jun 2012 20:57:02 +0400
changeset 7280 fd707afbc3a2
parent 5752 ea95ee97c805
permissions -rw-r--r--
pagevideos is now much better that before: 1. Display list of video files. 2. For each file in progress display progress bar. 3. Description for each file (size, duration etc). 4. It is possible to remove and rename files. 5. Video file can be launched in external media player. 6. ... also fixed some bugs http://postimage.org/image/hk87cuqm9/

#include "quacrc32.h"

#include "zlib.h"

QuaCrc32::QuaCrc32()
{
	reset();
}

quint32 QuaCrc32::calculate(const QByteArray &data)
{
	return crc32( crc32(0L, Z_NULL, 0), (const Bytef*)data.data(), data.size() );
}

void QuaCrc32::reset()
{
	checksum = crc32(0L, Z_NULL, 0);
}

void QuaCrc32::update(const QByteArray &buf)
{
	checksum = crc32( checksum, (const Bytef*)buf.data(), buf.size() );
}

quint32 QuaCrc32::value()
{
	return checksum;
}