On2 VP6 bSettings struct

[Sirber]

Anyone got the struct (C++) for handling bSettings in registry?

[Sirber]

"bSettings"=hex:00,00,00,00,2C,01,00,00,00,00,00,00,2C,2C,2C,00,00,00,00,00,2C,

I found :
"2C 02" = 556kbps!!!
"2C 01" = 300kbps.
"01 00" = 1kbps.
"00 00" = 0kbps.

2C01 in base16 gives 11265 in base10, not 300. am I missing something?
Also, bitrate is stored in "small int", so 2 bytes.

[Sirber]

"2C 02" = 556kbps!!!
"2C 01" = 300kbps.
"01 00" = 1kbps.
"00 00" = 0kbps.They actually inverted the numbers.

2C 01 --> 01 2C = 300 in base 10
2C 02 --> 02 2C = 556 in base 10!!!

Sirber rock the house! :cool:

[Seb.26]

Little endian ... ;)

PS: what version of VP6 are you using ? ( really great codec, no ? )

[Sirber]

VP62

What is "Little endian" in C++?

[dimzon]

little endian / big endian is byteorder

[Sirber]

thanks!

I'll borrow the C++ book from work :)

[Sirber]

void LoadOneCodecParam(FILE* fileState, COMPVARS* cvar)
{
LONG lStateSize;
void* memState;

ZeroMemory(cvar, sizeof(COMPVARS));
cvar->cbSize = sizeof(COMPVARS);
cvar->dwFlags = ICMF_COMPVARS_VALID;
cvar->fccType = ICTYPE_VIDEO;

fread(&cvar->fccHandler, sizeof(cvar->fccHandler), 1, fileState);
fread(&cvar->lKey, sizeof(cvar->lKey), 1, fileState);
fread(&cvar->lQ, sizeof(cvar->lQ), 1, fileState);
fread(&cvar->lDataRate, sizeof(cvar->lDataRate), 1, fileState);
fread(&lStateSize, sizeof(lStateSize), 1, fileState);

memState = malloc(lStateSize);

fread(memState, lStateSize, 1, fileState);

cvar->hic = ICOpen(cvar->fccType, cvar->fccHandler, ICMODE_COMPRESS);
if ( !(cvar->hic) ) {
free(memState);
ShowErrorAndExit("Unable to open compressor with FourCC \"%s\".",
FourCCToString(cvar->fccHandler));
}

// Ignore return (ICSetState sometimes returns 0 even when successful)
ICSetState(cvar->hic, memState, lStateSize);

free(memState);
}Sorry for my noobiness in C++ :)
I'd like to be able to browse memState to change some datas. I tryed to change "void* memState;" to "char* memState;", but it doesn't want it. In my C++ book, they use malloc with other things than void*.

[Sirber]

Seems I can "walk" memState with heapwalk. is it true?

[dimzon]

char * memState = (char *) malloc(lStateSize);