Tag Parser: opus/opusidentificationheader.cpp Source File

Tag Parser 12.5.2 C++ library for reading and writing MP4 (iTunes), ID3, Vorbis, Opus, FLAC and Matroska tags

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opusidentificationheader.cpp
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1#include "./opusidentificationheader.h"
2
3#include "../ogg/oggiterator.h"
4
5#include "../exceptions.h"
6
7#include <c++utilities/conversion/binaryconversion.h>
8
9using namespace std;
10using namespace CppUtilities;
11
12namespace TagParser {
13
19
24 void OpusIdentificationHeader::parseHeader(OggIterator &iterator)
25{
26 char buff[19 - 8];
27 iterator.read(buff, 8);
28 if (BE::toInt<std::uint64_t>(buff) != 0x4F70757348656164u) {
29 throw InvalidDataException(); // not Opus identification header
30 }
31 iterator.read(buff, sizeof(buff));
32 m_version = static_cast<std::uint8_t>(*(buff));
33 m_channels = static_cast<std::uint8_t>(*(buff + 1));
34 m_preSkip = LE::toInt<std::uint16_t>(buff + 2);
35 m_sampleRate = LE::toUInt32(buff + 4);
36 m_outputGain = LE::toInt<std::uint16_t>(buff + 8);
37 m_channelMap = static_cast<std::uint8_t>(*(buff + 10));
38}
39
40} // namespace TagParser
TagParser::InvalidDataException
The exception that is thrown when the data to be parsed or to be made seems invalid and therefore can...
Definition exceptions.h:25
TagParser::OggIterator
The OggIterator class helps iterating through all segments of an Ogg bitstream.
Definition oggiterator.h:11
TagParser::OggIterator::read
void read(char *buffer, std::size_t count)
Reads count bytes from the Ogg stream and writes it to the specified buffer.
Definition oggiterator.cpp:134
TagParser::OpusIdentificationHeader::parseHeader
void parseHeader(OggIterator &iterator)
Parses the Opus identification header which is read using the specified iterator.
Definition opusidentificationheader.cpp:24
exceptions.h
CppUtilities
Definition abstractcontainer.h:16
TagParser
Contains all classes and functions of the TagInfo library.
Definition aaccodebook.h:10
oggiterator.h
opusidentificationheader.h