linux-dvb-apps.git - linux-dvb-apps Debian packaging

Age	Commit message (Collapse)	Author	Files	Lines
2013-09-03	Imported Upstream version 1.1.1+rev1207upstream/1.1.1+rev1207	etobi	1	-0/+333

/* * section and descriptor parser * * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ #include <libucsi/atsc/tvct_section.h> struct atsc_tvct_section *atsc_tvct_section_codec(struct atsc_section_psip *psip) { uint8_t * buf = (uint8_t *) psip; size_t pos = sizeof(struct atsc_section_psip); size_t len = section_ext_length(&(psip->ext_head)); int idx; struct atsc_tvct_section *tvct = (struct atsc_tvct_section *) psip; if (len < sizeof(struct atsc_tvct_section)) return NULL; pos++; for(idx =0; idx < tvct->num_channels_in_section; idx++) { if ((pos + sizeof(struct atsc_tvct_channel)) > len) return NULL; struct atsc_tvct_channel *channel = (struct atsc_tvct_channel *) (buf+pos); pos += 7*2; bswap32(buf+pos); bswap32(buf+pos+4); bswap16(buf+pos+8); bswap16(buf+pos+10); bswap16(buf+pos+12); bswap16(buf+pos+14); bswap16(buf+pos+16); pos+=18; if ((pos + channel->descriptors_length) > len) return NULL; if (verify_descriptors(buf + pos, channel->descriptors_length)) return NULL; pos += channel->descriptors_length; } if ((pos + sizeof(struct atsc_tvct_section_part2)) > len) return NULL; struct atsc_tvct_section_part2 *part2 = (struct atsc_tvct_section_part2 *) (buf+pos); bswap16(buf+pos); pos+=2; if ((pos + part2->descriptors_length) > len) return NULL; if (verify_descriptors(buf + pos, part2->descriptors_length)) return NULL; pos += part2->descriptors_length; if (pos != len) return NULL; return (struct atsc_tvct_section *) psip; }