btparser/cparser/tests/exp_lex/MP4Template.bt

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11: BigEndian ( ) ;
12:
13: local int64 pos ;
14: local int64 pos2 ;
15:
16: typedef union {
17:
18: char text [ 4 ] ;
19: } _typ ;
20:
21: string typeFullName ( _typ & type ) {
22: if ( Memcmp ( type . text , "ftyp" , 4 ) == 0 ) return "File type compatibility box" ;
23: if ( Memcmp ( type . text , "mvhd" , 4 ) == 0 ) return "Movie header box" ;
24: if ( Memcmp ( type . text , "iods" , 4 ) == 0 ) return "Initial object descriptor box" ;
25: if ( Memcmp ( type . text , "trak" , 4 ) == 0 ) return "Track box" ;
26: if ( Memcmp ( type . text , "udta" , 4 ) == 0 ) return "Uset data box" ;
27: if ( Memcmp ( type . text , "mdat" , 4 ) == 0 ) return "Movie (sample) data box" ;
28: if ( Memcmp ( type . text , "moov" , 4 ) == 0 ) return "Moovie box" ;
29: if ( Memcmp ( type . text , "tkhd" , 4 ) == 0 ) return "Track header box" ;
30: if ( Memcmp ( type . text , "mdia" , 4 ) == 0 ) return "Media box" ;
31: if ( Memcmp ( type . text , "edts" , 4 ) == 0 ) return "Edit box" ;
32: if ( Memcmp ( type . text , "elst" , 4 ) == 0 ) return "Edit list" ;
33: return "I don't know the full name" ;
34: }
35:
36: string typeString ( _typ & type ) {
37: return "Type of the box: \"" + type . text + "\"" ;
38: }
39:
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41:
42: while ( FTell ( ) < FileSize ( ) - 1 ) {
43: struct _box {
44: uint size < hidden = true > ;
45: _typ type < bgcolor = cLtRed , fgcolor = cWhite , name = "Box Type" , open = false ,
46: name = typeString > ;
47: if ( Memcmp ( type . text , "ftyp" , 4 ) == 0 ) {
48: char major_brand [ 4 ] < bgcolor = cDkGreen , fgcolor = cWhite , name = "Major brand" > ;
49: char minor_ver [ 4 ] < bgcolor = cDkBlue , fgcolor = cWhite , name = "Minor version" > ;
50: uint comp_brands [ ( size - sizeof ( size ) - sizeof ( type ) - sizeof ( major_brand ) -
51: sizeof ( minor_ver ) ) / 4 ] < name = "Compatible brands" ,
52: comment = brandName , open = true > ;
53: } else if ( Memcmp ( type . text , "moov" , 4 ) == 0 ) {
54: pos = FTell ( ) ;
55: while ( FTell ( ) < pos + size - sizeof ( size ) - sizeof ( type ) )
56: struct _box2 {
57: uint size < hidden = true > ;
58: _typ type < bgcolor = cLtRed , fgcolor = cWhite , name = "Box Type" , open = false ,
59: name = typeString > ;
60: if ( Memcmp ( type . text , "mvhd" , 4 ) == 0 ) {
61: char version < hidden = true > ;
62: char flags [ 3 ] < hidden = true > ;
63: uint crTime < bgcolor = cLtGreen , fgcolor = cBlack , name = "Creation Time" , open = false > ;
64: uint mdTime < bgcolor = cPurple , fgcolor = cWhite , name = "Modification Time" , open = false > ;
65: uint tmScale < name = "Time scale" , comment = "Number of units per 1 second" > ;
66: uint duration < name = "Duration" , comment = "In units defined in the previous field" > ;
67: char rest [ size - sizeof ( size ) - sizeof ( type ) - sizeof ( version ) -
68: sizeof ( flags ) - sizeof ( crTime ) - sizeof ( mdTime ) -
69: sizeof ( tmScale ) - sizeof ( duration ) ] ;
70: } else if ( Memcmp ( type . text , "trak" , 4 ) == 0 ) {
71: pos2 = FTell ( ) ;
72: while ( FTell ( ) < pos2 + size - sizeof ( size ) - sizeof ( type ) )
73: struct _box3 {
74: uint size < hidden = true > ;
75: _typ type < bgcolor = cLtRed , fgcolor = cWhite , name = "Box Type" , open = false ,
76: name = typeString > ;
77: if ( Memcmp ( type . text , "tkhd" , 4 ) == 0 ) {
78: char version < hidden = true > ;
79: char flags [ 3 ] < hidden = true > ;
80: uint crTime < bgcolor = cLtGreen , fgcolor = cBlack , name = "Creation Time" , open = false > ;
81: uint mdTime < bgcolor = cPurple , fgcolor = cWhite , name = "Modification Time" , open = false > ;
82: uint trkID < name = "Track ID" , open = false > ;
83: uint reserv < hidden = true , name = "Reserved" > ;
84: uint duration < name = "Duration" , open = false > ;
85: char rest [ size - sizeof ( size ) - sizeof ( type ) - sizeof ( version ) -
86: sizeof ( flags ) - sizeof ( crTime ) - sizeof ( mdTime ) -
87: sizeof ( trkID ) - sizeof ( reserv ) - sizeof ( duration ) ] ;
88: } else if ( Memcmp ( type . text , "edts" , 4 ) == 0 ) {
89: struct _box4 {
90: uint size < hidden = true > ;
91: _typ type < bgcolor = cLtRed , fgcolor = cWhite , name = "Box Type" , open = false ,
92: name = typeString > ;
93: char version < hidden = true > ;
94: char flags [ 3 ] < hidden = true > ;
95: uint entrs < name = "Number of entries" > ;
96: struct {
97: uint trDuration < name = "Track duration" > ;
98: uint mediaTime < name = "Media time" > ;
99: uint mediaRate < name = "Media rate" > ;
100: } entry [ entrs ] < open = true > ;
101: } box < optimize = false , open = true , comment = boxName4 > ;
102: } else
103: char rest [ size - sizeof ( size ) - sizeof ( type ) ] ;
104: } box < optimize = false , open = true , comment = boxName3 > ;
105: } else
106: char rest [ size - sizeof ( size ) - sizeof ( type ) ] ;
107: } box < optimize = false , open = true , comment = boxName2 > ;
108: } else
109: char rest [ size - sizeof ( size ) - sizeof ( type ) ] ;
110: } box < optimize = false , open = true , comment = boxName > ;
111: }
112:
113: string boxName ( _box & box ) {
114: return box . type . text + " (" + typeFullName ( box . type ) + ")" ; ;
115: }
116:
117: string boxName2 ( _box2 & box ) {
118: return box . type . text + " (" + typeFullName ( box . type ) + ")" ;
119: }
120:
121: string boxName3 ( _box3 & box ) {
122: return box . type . text + " (" + typeFullName ( box . type ) + ")" ;
123: }
124:
125: string boxName4 ( _box4 & box ) {
126: return box . type . text + " (" + typeFullName ( box . type ) + ")" ;
127: }
128:
129: string brandName ( uint brand ) {
130: local char text [ 4 ] ;
131: local int i ;
132:
133: for ( i = 0 ; i < 4 ; ++ i )
134: text [ i ] = brand >> 8 * ( 3 - i ) & 0xFF ;
135: return text ;
136: }
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164: tok_eof