1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
|
#include <stdlib.h>
#include <string.h>
#include "fileutils.h"
#include "generic.h"
#include "cdutils.h"
/*
From the SONY documentation:
32 bytes header:
StSTATUS : 2 bytes 0
StTYPE : 2 bytes 2
StSECTOR_OFFSET: 2 bytes 4
StSECTOR_SIZE : 2 bytes 6
StFRAME_NO : 4 bytes 10
StFRAME_SIZE : 4 bytes 14
StMOVIE_WIDTH : 2 bytes 16
StMOVIE_HEIGHT : 2 bytes 18
StMOVIE_HEADM : 4 bytes 22
StMOVIE_HEADV : 4 bytes 26
Channels : 2 bytes 30
*/
int DCT[8][8] = {
{ 4096, 4096, 4096, 4096, 4096, 4096, 4096, 4096, },
{ 5681, 4816, 3218, 1130, -1130, -3218, -4816, -5681, },
{ 5352, 2217, -2217, -5532, -5532, -2217, 2217, 5352, },
{ 4816, -1130, -5681, -3218, 3218, 5681, 1130, -4816, },
{ 4096, -4096, 4096, -4096, 4096, -4096, 4096, -4096, },
{ 3218, -5681, 1130, 4816, -4816, -1130, 5681, -3218, },
{ 2217, -5352, 5352, -2217, -2217, 5352, -5352, 2217, },
{ 1130, -3218, 4816, -5681, 5681, -4816, 3218, -1130, },
};
int iDCT[8][8] = {
{ 4096, 5681, 5352, 4816, 4096, 3218, 2217, 1130, },
{ 4096, 4816, 2217, -1130, -4096, -5681, -5352, -3218, },
{ 4096, 3218, -2217, -5681, 4096, 1130, 5352, 4816, },
{ 4096, 1130, -5532, -3218, -4096, 4816, -2217, -5681, },
{ 4096, -1130, -5532, 3218, 4096, -4816, -2217, 5681, },
{ 4096, -3218, -2217, 5681, -4096, -1130, 5352, -4816, },
{ 4096, -4816, 2217, 1130, 4096, 5681, -5352, 3218, },
{ 4096, -5681, 5352, -4816, -4096, -3218, 2217, -1130, },
};
int zscan[] = {
0, 1, 8, 16, 9, 2, 3, 10,
17, 24, 32, 25, 18, 11, 4, 5,
12, 19, 26, 33, 40, 48, 41, 34,
27, 20, 13, 6, 7, 14, 21, 28,
35, 42, 49, 56, 57, 50, 43, 36,
29, 22, 15, 23, 30, 37, 44, 51,
58, 59, 52, 45, 38, 31, 39, 46,
53, 60, 61, 54, 47, 55, 62, 63,
};
int izscan[] = {
0, 17, 12, 27, 35, 29, 58, 53,
1, 24, 19, 20, 42, 22, 59, 60,
8, 32, 26, 13, 49, 15, 52, 61,
16, 25, 35, 6, 56, 23, 45, 54,
9, 18, 40, 7, 57, 30, 38, 47,
2, 11, 48, 14, 50, 37, 31, 55,
3, 4, 41, 21, 43, 44, 39, 62,
10, 5, 34, 28, 36, 51, 46, 63,
};
int iqtab[] = {
2, 16, 19, 22, 26, 27, 29, 34,
16, 16, 22, 24, 27, 29, 34, 37,
19, 22, 26, 27, 29, 34, 34, 38,
22, 22, 26, 27, 29, 34, 37, 40,
22, 26, 27, 29, 32, 35, 40, 48,
26, 27, 29, 32, 35, 40, 48, 58,
26, 27, 29, 34, 38, 46, 56, 69,
27, 29, 35, 38, 46, 56, 69, 83,
};
float RGB2YUV[3][3] = {
{ 1.00000, 0.00000, 1.40200, },
{ 1.00000, -0.34370, -0.71430, },
{ 1.00000, 1.77200, 0.00000, },
};
float YUV2RGB[3][3] = {
{ 0.22900, 0.58700, 0.11400, },
{ -0.16871, -0.33130, 0.50000, },
{ 0.50000, -0.41870, -0.08130, },
};
struct STR_Header {
Uint16 StSTATUS;
Uint16 StTYPE;
Uint16 StSECTOR_OFFSET;
Uint16 StSECTOR_SIZE;
Uint32 StFRAME_NO;
Uint32 StFRAME_SIZE;
Uint16 StMOVIE_WIDTH;
Uint16 StMOVIE_HEIGHT;
Uint32 StMOVIE_HEADM;
Uint32 StMOVIE_HEADV;
Uint16 Channels;
} __attribute__((packed));
Byte * video = 0, * audio = 0;
void print_bits(Uint16 w) {
int i;
for (i = 0; i < 16; i++) {
printm(M_BARE, "%c", w & (1 << i) ? '1' : '0');
}
}
Uint32 get_bits(Uint16 * datas, int size, int * pointer) {
static internal = 0;
static Uint16 w = 0;
Uint16 r = 0;
if (internal <= size) {
r = w;
size -= internal;
w = *((Uint16 *) (video + pointer));
pointer += 2;
w = swap_word(w);
internal = 16;
}
r <<= size;
r |= ((w >> (16 - size)) & ((1 << size) - 1));
w <<= size;
return r;
}
void process_one_sector(FILE * f) {
Byte sector[2336];
STR_Header * h;
fread(sector, 2336, 1, f);
h = (STR_Header *) ((Byte *) sector + 8);
printm(M_BARE, "SubHeader FN : %x\n", sector[0]);
printm(M_BARE, "SubHeader CN : %x\n", sector[1]);
printm(M_BARE, "SubHeader SM : %x\n", sector[2]);
printm(M_BARE, "SubHeader CI : %x\n", sector[3]);
if (sector[2] == 0x48) {
printm(M_BARE, "Video sector\n");
printm(M_BARE, "Status : %04x\n", h->StSTATUS);
printm(M_BARE, "Type : %04x\n", h->StTYPE);
printm(M_BARE, "Sector Offset: %i\n", h->StSECTOR_OFFSET);
printm(M_BARE, "Sector Size : %i\n", h->StSECTOR_SIZE);
printm(M_BARE, "Frame Number : %i\n", h->StFRAME_NO);
printm(M_BARE, "Frame Size : %i\n", h->StFRAME_SIZE);
printm(M_BARE, "Movie Width : %i\n", h->StMOVIE_WIDTH);
printm(M_BARE, "Movie Height : %i\n", h->StMOVIE_HEIGHT);
printm(M_BARE, "Movie HeadM : %08x\n", h->StMOVIE_HEADM);
printm(M_BARE, "Movie HeadV : %08x\n", h->StMOVIE_HEADV);
printm(M_BARE, "Channels : %04x\n", h->Channels);
if (h->StSECTOR_OFFSET == 0) {
video = (Byte *) malloc(h->StSECTOR_SIZE * 2016);
}
memcpy(video + h->StSECTOR_OFFSET * 2016, sector + 40, 2016);
if (h->StSECTOR_SIZE == (h->StSECTOR_OFFSET + 1)) {
Uint32 pointer = 0;
Uint32 macrobloc = 0;
// Frame finished.
printm(M_BARE, "End of Frame.\n");
// fwrite(video, 1, h->StSECTOR_SIZE * 2016, stdout);
while (pointer <= h->StFRAME_SIZE) {
Uint16 rl_size = *((Uint16 *) (video + pointer));
pointer += 2;
if (*((Uint16 *) (video + pointer)) != 0x3800) {
printm(M_ERROR, "Broken frame\n");
break;
}
pointer += 2;
Uint16 quant = *((Uint16 *) (video + pointer));
pointer += 2;
Uint16 ver = *((Uint16 *) (video + pointer));
printm(M_BARE, "Processing macrobloc %i, rlsize = %i, quant = %i, ver = %i, pointer = 0x%08x\n", macrobloc, rl_size, quant, ver, pointer);
for (int i = 0; i < 32; i++) {
}
printm(M_BARE, "\n");
// int16 Cb[64], Cr[64], Y0[64], Y1[64], Y2[64], Y3[64];
// int16 * blocs[6] = {Cb, Cr, Y0, Y1, Y2, Y3};
// int bloc;
exit(-1);
/* for (bloc = 0; bloc < 6; bloc++) {
Uint16 QSP = *((Uint16 *) (video + pointer));
pointer += 2;
int16 DC = QSP & 0x3f;
Uint8 Quant = QSP >> 10;
int i;
for (i = 0; i < 64; i++) {
blocs[bloc][i] = 0;
}
if (DC & 0x20) {
DC |= 0xc0;
}
printm(M_BARE, "Processing subbloc %i, DC = %i, Quant = %i, pointer = 0x%08x\n", bloc, DC, Quant, pointer);
int inblock = 1;
blocs[bloc][0] = DC;
while (1) {
Uint16 RCF = *((Uint16 *) (video + pointer));
pointer += 2;
if (RCF == 0xfe00) {
break;
}
printm(M_BARE, "Read a RCF: 0x%04x\n", RCF);
int16 Level = RCF & 0x3f;
Uint8 Run = RCF >> 10;
if (Level & 0x20) {
Level |= 0xc0;
}
blocs[bloc][inblock] = Level;
inblock += Run + 1;
}
} */
}
free(video);
}
} else if (sector[2] == 0x64) {
printm(M_BARE, "Audio sector\n");
} else {
printm(M_BARE, "Unknow sector\n");
}
printm(M_BARE, "---------------------------------\n\n");
}
#ifdef STR_MAIN
int main(void) {
while (!feof(stdin)) {
process_one_sector(stdin);
}
}
#endif
|
