Add preliminary PTX support for Protools 10 and 11

Signed-off-by: Damien Zammit <damien@zamaudio.com>
This commit is contained in:
Damien Zammit 2016-02-04 19:39:11 +11:00 committed by Robin Gareus
parent 81a9f7a956
commit fbbde01f25
2 changed files with 110 additions and 103 deletions

View File

@ -107,12 +107,12 @@ PTFFormat::load(std::string path, int64_t targetsr) {
FILE *fp;
unsigned char xxor[256];
unsigned char ct;
unsigned char px;
unsigned char v;
unsigned char voff;
uint64_t key;
uint16_t i;
int j;
uint64_t i;
uint64_t j;
int inv;
unsigned char message;
if (! (fp = fopen(path.c_str(), "rb"))) {
return -1;
@ -139,37 +139,20 @@ PTFFormat::load(std::string path, int64_t targetsr) {
return -1;
}
fseek(fp, 0x0, SEEK_SET);
switch (c0) {
case 0x00:
// Success! easy one
xxor[0] = c0;
xxor[1] = c1;
//fprintf(stderr, "%02x %02x", c0, c1);
//fprintf(stderr, "0 %02x\n1 %02x\n", c0, c1);
for (i = 2; i < 64; i++) {
xxor[i] = (xxor[i-1] + c1 - c0) & 0xff;
//fprintf(stderr, "%02x ", xxor[i]);
}
px = xxor[0];
fread(&ct, 1, 1, fp);
message = px ^ ct;
ptfunxored[0] = message;
px = xxor[1];
fread(&ct, 1, 1, fp);
message = px ^ ct;
ptfunxored[1] = message;
i = 2;
j = 2;
while (fread(&ct, 1, 1, fp) != 0) {
for (i = 2; i < 256; i++) {
if (i%64 == 0) {
i = 0;
xxor[i] = c0;
} else {
xxor[i] = (xxor[i-1] + c1 - c0) & 0xff;
//fprintf(stderr, "%x %02x\n", i, xxor[i]);
}
message = xxor[i] ^ ct;
ptfunxored[j] = message;
i++;
j++;
}
break;
case 0x80:
@ -189,25 +172,6 @@ PTFFormat::load(std::string path, int64_t targetsr) {
for (i = 128; i < 192; i++) {
xxor[i] ^= 0x80;
}
px = xxor[0];
fread(&ct, 1, 1, fp);
message = px ^ ct;
ptfunxored[0] = message;
px = xxor[1];
fread(&ct, 1, 1, fp);
message = px ^ ct;
ptfunxored[1] = message;
i = 2;
j = 2;
while (fread(&ct, 1, 1, fp) != 0) {
if (i%256 == 0) {
i = 0;
}
message = xxor[i] ^ ct;
ptfunxored[j] = message;
i++;
j++;
}
break;
case 0x40:
case 0xc0:
@ -222,6 +186,7 @@ PTFFormat::load(std::string path, int64_t targetsr) {
}
key = gen_secret(c1);
for (i = 0; i < 64; i++) {
xxor[i] ^= (((key >> i) & 1) * 2 * 0x40) + 0x40;
}
@ -233,25 +198,6 @@ PTFFormat::load(std::string path, int64_t targetsr) {
for (i = 192; i < 256; i++) {
xxor[i] ^= 0x80;
}
px = xxor[0];
fread(&ct, 1, 1, fp);
message = px ^ ct;
ptfunxored[0] = message;
px = xxor[1];
fread(&ct, 1, 1, fp);
message = px ^ ct;
ptfunxored[1] = message;
i = 2;
j = 2;
while (fread(&ct, 1, 1, fp) != 0) {
if (i%256 == 0) {
i = 0;
}
message = xxor[i] ^ ct;
ptfunxored[j] = message;
i++;
j++;
}
break;
break;
default:
@ -259,41 +205,101 @@ PTFFormat::load(std::string path, int64_t targetsr) {
return -1;
break;
}
/* Read file */
i = 0;
fseek(fp, 0, SEEK_SET);
while (fread(&ct, 1, 1, fp) != 0) {
ptfunxored[i++] = ct;
}
fclose(fp);
/* version detection */
voff = 0x36;
v = ptfunxored[voff];
if (v == 0x20) {
voff += 7;
} else if (v == 0x03) {
voff += 4;
} else {
voff = 0;
}
v = ptfunxored[voff];
if (v == 10 || v == 11 || v == 12) {
version = v;
unxor10();
}
if (version == 0 || version == 5 || version == 7) {
/* Haven't detected version yet so decipher */
j = 0;
for (i = 0; i < len; i++) {
if (j%256 == 0) {
j = 0;
}
ptfunxored[i] ^= xxor[j];
j++;
}
/* version detection */
voff = 0x36;
v = ptfunxored[voff];
if (v == 0x20) {
voff += 7;
} else if (v == 0x03) {
voff += 4;
} else {
voff = 0;
}
v = ptfunxored[voff];
if (v == 5 || v == 7 || v == 8 || v == 9) {
version = v;
}
}
targetrate = targetsr;
parse();
return 0;
}
uint8_t
PTFFormat::mostfrequent(uint32_t start, uint32_t stop)
{
uint32_t counts[256] = {0};
uint64_t i;
uint32_t max = 0;
uint8_t maxi = 0;
for (i = start; i < stop; i++) {
counts[ptfunxored[i]]++;
}
for (i = 0; i < 256; i++) {
if (counts[i] > max) {
maxi = i;
max = counts[i];
}
}
return maxi;
}
void
PTFFormat::unxor10(void)
{
key10a = ptfunxored[0x9f];
key10b = ptfunxored[0x9e] - ptfunxored[0x9b];
int j, k, currkey;
uint64_t j;
uint8_t x = mostfrequent(0x1000, 0x2000);
uint8_t dx = 0x100-x;
k = 0x1000;
for (j = k; j < k + 0x1000 && j < len; j++) {
ptfunxored[j] ^= key10a;
}
k = 0x2000;
for (j = k; j < k + 0x1000 && j < len; j++) {
ptfunxored[j] ^= key10b;
}
currkey = key10b;
while (k < len) {
k += 0x1000;
currkey = (key10a + currkey) & 0xff;
for (j = k; j < k + 0x1000 && j < len; j++) {
ptfunxored[j] ^= currkey;
for (j = 0x1000; j < len; j++) {
if(j % 0x1000 == 0xfff) {
x = (x - dx) & 0xff;
}
ptfunxored[j] ^= x;
}
}
void
PTFFormat::parse(void) {
version = (version == 0) ? ptfunxored[61] : version;
if (version == 5) {
parse5header();
setrates();
@ -314,8 +320,7 @@ PTFFormat::parse(void) {
setrates();
parseaudio();
parserest89();
} else if (version == 10) {
unxor10();
} else if (version == 10 || version == 11 || version == 12) {
parse10header();
setrates();
parseaudio();
@ -335,7 +340,7 @@ PTFFormat::setrates(void) {
void
PTFFormat::parse5header(void) {
int k;
uint32_t k;
// Find session sample rate
k = 0x100;
@ -356,7 +361,7 @@ PTFFormat::parse5header(void) {
void
PTFFormat::parse7header(void) {
int k;
uint64_t k;
// Find session sample rate
k = 0x100;
@ -377,7 +382,7 @@ PTFFormat::parse7header(void) {
void
PTFFormat::parse8header(void) {
int k;
uint64_t k;
// Find session sample rate
k = 0;
@ -397,7 +402,7 @@ PTFFormat::parse8header(void) {
void
PTFFormat::parse9header(void) {
int k;
uint64_t k;
// Find session sample rate
k = 0x100;
@ -417,10 +422,10 @@ PTFFormat::parse9header(void) {
void
PTFFormat::parse10header(void) {
int k;
uint64_t k;
// Find session sample rate
k = 0;
k = 0x100;
while (k < len) {
if ( (ptfunxored[k ] == 0x5a) &&
(ptfunxored[k+1] == 0x09)) {
@ -437,9 +442,9 @@ PTFFormat::parse10header(void) {
void
PTFFormat::parserest5(void) {
int i, j, k;
int regionspertrack, lengthofname;
int startbytes, lengthbytes, offsetbytes;
uint64_t i, j, k;
uint64_t regionspertrack, lengthofname;
uint64_t startbytes, lengthbytes, offsetbytes;
uint16_t tracknumber = 0;
uint16_t findex;
uint16_t rindex;
@ -459,7 +464,7 @@ PTFFormat::parserest5(void) {
k--;
for (i = 0; i < 2; i++) {
while (k > 0) {
while (k) {
if ( (ptfunxored[k ] == 0x5a) &&
(ptfunxored[k+1] == 0x00) &&
(ptfunxored[k+2] == 0x01)) {
@ -467,7 +472,8 @@ PTFFormat::parserest5(void) {
}
k--;
}
k--;
if (k)
k--;
}
k++;
@ -643,8 +649,8 @@ PTFFormat::resort(std::vector<wav_t> *ws) {
void
PTFFormat::parseaudio5(void) {
int i,k,l;
int lengthofname, wavnumber;
uint64_t i,k,l;
uint64_t lengthofname, wavnumber;
// Find end of wav file list
k = 0;
@ -733,7 +739,7 @@ PTFFormat::parseaudio5(void) {
void
PTFFormat::parseaudio(void) {
int i,j,k,l;
uint64_t i,j,k,l;
// Find end of wav file list
k = 0;
@ -808,7 +814,7 @@ PTFFormat::parseaudio(void) {
void
PTFFormat::parserest89(void) {
int i,j,k,l;
uint64_t i,j,k,l;
// Find Regions
uint8_t startbytes = 0;
uint8_t lengthbytes = 0;
@ -1057,7 +1063,7 @@ PTFFormat::parserest89(void) {
void
PTFFormat::parserest10(void) {
int i,j,k,l;
uint64_t i,j,k,l;
// Find Regions
uint8_t startbytes = 0;
uint8_t lengthbytes = 0;

View File

@ -113,7 +113,7 @@ public:
unsigned char c0;
unsigned char c1;
unsigned char *ptfunxored;
int len;
uint64_t len;
private:
bool foundin(std::string haystack, std::string needle);
@ -131,6 +131,7 @@ private:
void parseaudio5(void);
void parseaudio(void);
void resort(std::vector<wav_t> *ws);
uint8_t mostfrequent(uint32_t start, uint32_t stop);
std::vector<wav_t> actualwavs;
float ratefactor;
std::string extension;