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/*
* Simple MPEG/DVB parser to achieve network/service information without initial tuning data
*
* Copyright (C) 2006, 2007, 2008 Winfried Koehler
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* The author can be reached at: handygewinnspiel AT gmx DOT de
*
* The project's page is http://wirbel.htpc-forum.de/w_scan/index2.html
*
* 20080815: file added by mkrufky
*/
#include "section.h"
/* shamelessly stolen from dvbsnoop, but modified */
u32 getBits (const u8 *buf, int startbit, int bitlen)
{
const u8 *b;
u32 mask,tmp_long;
int bitHigh,i;
b = &buf[startbit / 8];
startbit %= 8;
bitHigh = 8;
tmp_long = b[0];
for (i = 0; i < ((bitlen-1) >> 3); i++) {
tmp_long <<= 8;
tmp_long |= b[i+1];
bitHigh += 8;
}
startbit = bitHigh - startbit - bitlen;
tmp_long = tmp_long >> startbit;
mask = (1ULL << bitlen) - 1;
return tmp_long & mask;
}
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