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COMMON: FORMATS: Implement pInf atom parsing for QuickTime movies

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This commit implements pInf (Panorama Information) atom parsing for QuickTime movies.
It contains information about panoramic nodes (ID, timestamp) and the default node's zoom level.
This commit is contained in:
Krish 2024-06-18 15:21:01 +05:30 committed by Eugene Sandulenko
parent 4a180f94f5
commit fc34902998
2 changed files with 36 additions and 0 deletions
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21
common/formats/quicktime.cpp
View File

@ -171,6 +171,8 @@ void QuickTimeParser::initParseTable() {
{ &QuickTimeParser::readSMI, MKTAG('S', 'M', 'I', ' ') },
{ &QuickTimeParser::readDefault, MKTAG('g', 'm', 'h', 'd') },
{ &QuickTimeParser::readLeaf, MKTAG('g', 'm', 'i', 'n') },
{ &QuickTimeParser::readDefault, MKTAG('S', 'T', 'p', 'n') },
{ &QuickTimeParser::readPINF, MKTAG('p', 'I', 'n', 'f') },
{ nullptr, 0 }
};
@ -853,6 +855,25 @@ int QuickTimeParser::readNAVG(Atom atom) {
return 0;
}
int QuickTimeParser::readPINF(Atom atom) {
Track *track = _tracks.back();
track->panoInfo.name = _fd->readPascalString();
_fd->seek((int64)atom.offset + 32);
track->panoInfo.defNodeID = _fd->readUint32BE();
track->panoInfo.defZoom = readAppleFloatField(_fd);
_fd->readUint32BE(); // reserved
_fd->readSint16BE(); // padding
int16 numEntries = _fd->readSint16BE();
track->panoInfo.nodes.resize(numEntries);
for (int16 i = 0; i < numEntries; i++) {
track->panoInfo.nodes[i].nodeID = _fd->readUint32BE();
track->panoInfo.nodes[i].timestamp = _fd->readUint32BE();
}
return 0;
}
int QuickTimeParser::readDREF(Atom atom) {
if (atom.size > 1) {
Track *track = _tracks.back();

15
common/formats/quicktime.h
View File

@ -144,6 +144,18 @@ protected:
CODEC_TYPE_MIDI
};
struct PanoramaNode {
uint32 nodeID;
uint32 timestamp;
};
struct PanoramaInformation {
String name;
uint32 defNodeID;
float defZoom;
Array<PanoramaNode> nodes;
};
struct Track {
Track();
~Track();
@ -181,6 +193,8 @@ protected:
Common::String directory;
int16 nlvlFrom;
int16 nlvlTo;
PanoramaInformation panoInfo;
};
enum class MovieType {
@ -269,6 +283,7 @@ private:
int readSMI(Atom atom);
int readCTYP(Atom atom);
int readNAVG(Atom atom);
int readPINF(Atom atom);
};
/** @} */