diff options
Diffstat (limited to 'str-util.cpp')
| -rw-r--r-- | str-util.cpp | 180 |
1 files changed, 178 insertions, 2 deletions
diff --git a/str-util.cpp b/str-util.cpp index f735758..aa2c9d6 100644 --- a/str-util.cpp +++ b/str-util.cpp @@ -1,7 +1,8 @@ #include <stdlib.h> +#include <string.h> #include "fileutils.h" #include "generic.h" -#include "yazedc.h" +#include "cdutils.h" /* @@ -23,6 +24,73 @@ 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; @@ -39,6 +107,36 @@ struct STR_Header { 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; @@ -68,8 +166,86 @@ void process_one_sector(FILE * f) { video = (Byte *) malloc(h->StSECTOR_SIZE * 2016); } - memcpy(video + h->StSECTOR_OFFSET * 2016, sector + 40); + 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"); |