1+ #pragma description SUP Bluray Subtitle
2+
3+ #pragma magic [50 47] @ 0x00
4+ #pragma endian big
5+
6+ import std.mem;
7+
8+ enum SegmentType : u8{
9+ PaletteDefinitionSegment=0x14,
10+ ObjectDefinitionSegment=0x15,
11+ PresentationCompositionSegment=0x16,
12+ WindowDefinitionSegment=0x17,
13+ END=0x80
14+ };
15+
16+
17+
18+ enum CompositionState : u8 {
19+ Normal=0x00,
20+ AcquisitionPoint=0x40,
21+ EpochStart=0x80
22+ };
23+ enum PaletteUpdateFlag : u8 {
24+ False=0x00,
25+ True=0x80
26+ };
27+ enum ObjectCroppedFlag : u8{
28+ True=0x40,
29+ False=0x00
30+ };
31+ struct CompositionObject{
32+ u16 objectID;
33+ u8 windowID;
34+ ObjectCroppedFlag objectCroppedFlag;
35+ u16 objectHorizontalPosition;
36+ u16 objectVerticalPosition;
37+ if (objectCroppedFlag == ObjectCroppedFlag::True){
38+ u16 objectCroppingHorizontalPosition;
39+ u16 objectCroppingVerticalPosition;
40+ u16 objectCroppingWidth;
41+ u16 objectCroppingHeight;
42+ }
43+ };
44+ struct PresentationCompositionSegment{
45+ u16 width;
46+ u16 height;
47+ u8 framerate;
48+ u16 compositionNumber;
49+ CompositionState compositionState;
50+ PaletteUpdateFlag paletteUpdateFlag;
51+ u8 paletteID;
52+ u8 numberOfCompositionObjects;
53+ CompositionObject compositionObject[numberOfCompositionObjects];
54+ };
55+
56+
57+ struct WindowDefinitionSegment{
58+ u8 numberOfWindows;
59+ u8 windowID;
60+ u16 windowHorizontalPosition;
61+ u16 windowVerticalPosition;
62+ u16 windowWidth;
63+ u16 windowHeight;
64+ };
65+
66+ fn paletteCount(){
67+ u64 len = (parent.parent.header.segmentSize-7)/5+1;
68+ return len;
69+ };
70+ struct PaletteEntry{
71+ u8 paletteEntryID;
72+ u8 luminance;
73+ u8 colorDifferenceRed [[color("FF0000")]];
74+ u8 colorDifferenceBlue [[color("0000FF")]];
75+ u8 Transparency;
76+ };
77+ struct PaletteDefinitionSegment{
78+ u8 paletteID;
79+ u8 paletteVersionNumber;
80+ PaletteEntry paletteEntry[paletteCount()];
81+ };
82+
83+
84+ enum LastInSequenceFlag : u8{
85+ LastInSequence=0x40,
86+ FirstInSequence=0x80,
87+ FirstAndLastsInSequence=0xC0
88+ };
89+ struct ObjectDefinitionSegment{
90+ u16 objectID;
91+ u8 objectVersionNumber;
92+ LastInSequenceFlag lastInSequenceFlag;
93+ u24 objectDataLength;
94+ //u16 width;
95+ //u16 height;
96+ u8 objectData[objectDataLength];
97+ };
98+
99+
100+ struct PGSHeader{
101+ char magicNumber[2];
102+ u32 presentationTimeStamp;
103+ u32 decodingTimeStamp;
104+ SegmentType segmentType;
105+ u16 segmentSize;
106+ };
107+
108+ struct PGSSegment{
109+ PGSHeader header;
110+ match(header.segmentType){
111+ (0x14): PaletteDefinitionSegment paletteDefinitionSegment;
112+ (0x15): ObjectDefinitionSegment objectDefinitionSegment;
113+ (0x16): PresentationCompositionSegment presentationCompositionSegment;
114+ (0x17): WindowDefinitionSegment windowDefinitionSegment;
115+ }
116+ };
117+
118+
119+ PGSSegment pgsSegment[while(!std::mem::eof())] @ 0;
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