1 #ifndef TAG_PARSER_MP4TRACK_H
2 #define TAG_PARSER_MP4TRACK_H
4 #include "../abstracttrack.h"
12 class Mpeg4Descriptor;
15 struct TrackHeaderInfo;
54 bool dependencyFlag()
const;
57 std::uint8_t priority()
const;
58 std::uint8_t streamTypeId()
const;
59 bool upstream()
const;
126 const std::vector<std::uint32_t> &sampleSizes()
const;
127 unsigned int chunkOffsetSize()
const;
128 std::uint32_t chunkCount()
const;
129 std::uint32_t sampleToChunkEntryCount()
const;
135 static std::unique_ptr<Mpeg4ElementaryStreamInfo> parseMpeg4ElementaryStreamInfo(
137 static std::unique_ptr<Mpeg4AudioSpecificConfig> parseAudioSpecificConfig(
138 std::istream &stream, std::uint64_t startOffset, std::uint64_t size,
Diagnostics &diag);
139 static std::unique_ptr<Mpeg4VideoSpecificConfig> parseVideoSpecificConfig(
140 CppUtilities::BinaryReader &reader, std::uint64_t startOffset, std::uint64_t size,
Diagnostics &diag);
143 std::vector<std::uint64_t> readChunkOffsets(
bool parseFragments,
Diagnostics &diag);
144 std::vector<std::tuple<std::uint32_t, std::uint32_t, std::uint32_t>> readSampleToChunkTable(
Diagnostics &diag);
149 std::uint64_t requiredSize(
Diagnostics &diag)
const;
157 void updateChunkOffsets(
const std::vector<std::int64_t> &oldMdatOffsets,
const std::vector<std::int64_t> &newMdatOffsets);
158 void updateChunkOffsets(
const std::vector<std::uint64_t> &chunkOffsets);
159 void updateChunkOffset(std::uint32_t chunkIndex, std::uint64_t offset);
165 void internalParseHeader(
Diagnostics &diag)
override;
169 std::uint64_t accumulateSampleSizes(std::size_t &sampleIndex, std::size_t count,
Diagnostics &diag);
170 void addChunkSizeEntries(
171 std::vector<std::uint64_t> &chunkSizeTable, std::size_t count, std::size_t &sampleIndex, std::uint32_t sampleCount,
Diagnostics &diag);
185 std::uint16_t m_framesPerSample;
186 std::vector<std::uint32_t> m_sampleSizes;
187 unsigned int m_chunkOffsetSize;
188 std::uint32_t m_chunkCount;
189 std::uint32_t m_sampleToChunkEntryCount;
190 std::unique_ptr<Mpeg4ElementaryStreamInfo> m_esInfo;
191 std::unique_ptr<AvcConfiguration> m_avcConfig;
192 std::unique_ptr<Av1Configuration> m_av1Config;
212 return m_sampleSizes;
222 return m_chunkOffsetSize;
238 return m_sampleToChunkEntryCount;
250 return m_esInfo.get();
261 return m_avcConfig.get();
272 return m_av1Config.get();
277 #endif // TAG_PARSER_MP4TRACK_H