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Diffstat (limited to 'lib/dvb_si/mosaic_descriptor.cpp')
| -rw-r--r-- | lib/dvb_si/mosaic_descriptor.cpp | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/lib/dvb_si/mosaic_descriptor.cpp b/lib/dvb_si/mosaic_descriptor.cpp new file mode 100644 index 00000000..f13bccff --- /dev/null +++ b/lib/dvb_si/mosaic_descriptor.cpp @@ -0,0 +1,171 @@ +/* + * $Id: mosaic_descriptor.cpp,v 1.1 2003-10-17 15:36:37 tmbinc Exp $ + * + * (C) 2002-2003 Andreas Oberritter <obi@saftware.de> + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <lib/dvb_si/mosaic_descriptor.h> + +ElementaryCellField::ElementaryCellField (const uint8_t * const buffer) +{ + reserved = (buffer[0] >> 6) & 0x03; + elementaryCellId = buffer[0] & 0x3F; +} + +uint8_t ElementaryCellField::getElementaryCellId(void) const +{ + return elementaryCellId; +} + +MosaicCell::MosaicCell (const uint8_t * const buffer) +{ + logicalCellId = (buffer[0] >> 2) & 0x3F; + reserved = (((buffer[0] & 0x03) << 8) | (buffer[1] & 0xF1)) >> 3; + logicalCellPresentationInfo = buffer[1] & 0x07; + elementaryCellFieldLength = buffer[2]; + + for (uint16_t i = 0; i < elementaryCellFieldLength; ++i) + elementaryCellFields.push_back(new ElementaryCellField(&buffer[i + 3])); + + cellLinkageInfo = buffer[elementaryCellFieldLength + 3]; + + switch (cellLinkageInfo) { + case 0x01: + bouquetId = (buffer[elementaryCellFieldLength + 4] << 8) | buffer[elementaryCellFieldLength + 5]; + break; + case 0x02: + case 0x03: + case 0x04: + originalNetworkId = (buffer[elementaryCellFieldLength + 4] << 8) | buffer[elementaryCellFieldLength + 5]; + transportStreamId = (buffer[elementaryCellFieldLength + 6] << 8) | buffer[elementaryCellFieldLength + 7]; + serviceId = (buffer[elementaryCellFieldLength + 8] << 8) | buffer[elementaryCellFieldLength + 9]; + break; + default: + break; + } + + if (cellLinkageInfo == 0x04) + eventId = (buffer[elementaryCellFieldLength + 10] << 8) | buffer[elementaryCellFieldLength + 11]; +} + +MosaicCell::~MosaicCell(void) +{ + for (ElementaryCellFieldIterator i = elementaryCellFields.begin(); i != elementaryCellFields.end(); ++i) + delete *i; +} + +uint8_t MosaicCell::getLogicalCellId(void) const +{ + return logicalCellId; +} + +uint8_t MosaicCell::getLogicalCellPresentationInfo(void) const +{ + return logicalCellPresentationInfo; +} + +const ElementaryCellFieldVector *MosaicCell::getElementaryCellFields(void) const +{ + return &elementaryCellFields; +} + +uint8_t MosaicCell::getCellLinkageInfo(void) const +{ + return cellLinkageInfo; +} + +uint16_t MosaicCell::getBouquetId(void) const +{ + return bouquetId; +} + +uint16_t MosaicCell::getOriginalNetworkId(void) const +{ + return originalNetworkId; +} + +uint16_t MosaicCell::getTransportStreamId(void) const +{ + return transportStreamId; +} + +uint16_t MosaicCell::getServiceId(void) const +{ + return serviceId; +} + +uint16_t MosaicCell::getEventId(void) const +{ + return eventId; +} + +MosaicDescriptor::MosaicDescriptor(const uint8_t * const buffer) : Descriptor(buffer) +{ + if (descriptorLength < 1) + return; + + mosaicEntryPoint = (buffer[2] >> 7) & 0x01; + numberOfHorizontalElementaryCells = (buffer[2] >> 4) & 0x07; + reserved = (buffer[2] >> 3) & 0x01; + numberOfVerticalElementaryCells = buffer[2] & 0x07; + + for (uint16_t i = 0; i < descriptorLength - 1; i += buffer[i + 6] + 2) { + mosaicCells.push_back(new MosaicCell(&buffer[i + 1])); + switch (buffer[i + 6 + buffer[i + 6] + 1]) { + case 0x01: + i += 2; + break; + case 0x02: + case 0x03: + i += 6; + break; + case 0x04: + i += 8; + break; + default: + break; + } + } +} + +MosaicDescriptor::~MosaicDescriptor(void) +{ + for (MosaicCellIterator i = mosaicCells.begin(); i != mosaicCells.end(); ++i) + delete *i; +} + +uint8_t MosaicDescriptor::getMosaicEntryPoint(void) const +{ + return mosaicEntryPoint; +} + +uint8_t MosaicDescriptor::getNumberOfHorizontalElementaryCells(void) const +{ + return numberOfHorizontalElementaryCells; +} + +uint8_t MosaicDescriptor::getNumberOfVerticalElementaryCells(void) const +{ + return numberOfVerticalElementaryCells; +} + +const MosaicCellVector *MosaicDescriptor::getMosaicCells(void) const +{ + return &mosaicCells; +} + |