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Attempt to read the atrac size from the file.

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This commit is contained in:
Unknown W. Brackets 2013-02-03 16:54:52 -08:00
parent 1eea5aa969
commit ee62c807ee
1 changed files with 39 additions and 8 deletions
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47
Core/HLE/sceAtrac.cpp
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@ -61,6 +61,8 @@ struct Atrac {
p.DoMarker("Atrac");
}
void Analyze();
u32 decodePos;
u32 decodeEnd;
int loopNum;
@ -139,6 +141,38 @@ int getCodecType(int addr) {
return 0;
}
void Atrac::Analyze()
{
// This is an ugly approximation of song length, in case we can't do better.
this->decodeEnd = first.size * 3;
if (first.size < 0x100)
{
ERROR_LOG(HLE, "Atrac buffer very small: %d", first.size);
return;
}
// TODO: Validate stuff.
// RIFF size excluding chunk header.
first.filesize = Memory::Read_U32(first.addr + 4) + 8;
u32 offset = 12;
while (first.size > offset + 8)
{
u32 magic = Memory::Read_U32(first.addr + offset);
u32 size = Memory::Read_U32(first.addr + offset + 4);
offset += 8;
if (magic == *(u32 *) "fmt " && size > 14 && first.size > offset + 14)
{
u16 bytesPerFrame = Memory::Read_U16(first.addr + offset + 12);
// TODO: This is probably still wrong?
this->decodeEnd = (first.filesize / bytesPerFrame) * ATRAC_MAX_SAMPLES;
}
}
}
u32 sceAtracGetAtracID(int codecType)
{
ERROR_LOG(HLE, "FAKE sceAtracGetAtracID(%i)", codecType);
@ -343,6 +377,7 @@ u32 sceAtracGetRemainFrame(int atracID, u32 remainAddr)
//return -1;
Memory::Write_U32(12, remainAddr); // outpos
} else {
// TODO: Seems like this is the number of bytes remaining to read from the file (or -1 if none)?
Memory::Write_U32(-1, remainAddr);
}
return 0;
@ -429,8 +464,7 @@ u32 sceAtracSetData(int atracID, u32 buffer, u32 bufferSize)
if (atrac != NULL) {
atrac->first.addr = buffer;
atrac->first.size = bufferSize;
// TODO: This is an ugly approximation of song length.
atrac->decodeEnd = bufferSize * 3;
atrac->Analyze();
}
return 0;
}
@ -443,8 +477,7 @@ int sceAtracSetDataAndGetID(u32 buffer, u32 bufferSize)
Atrac *atrac = new Atrac();
atrac->first.addr = buffer;
atrac->first.size = bufferSize;
// TODO: This is an ugly approximation of song length.
atrac->decodeEnd = bufferSize * 3;
atrac->Analyze();
return createAtrac(atrac);
}
@ -456,8 +489,7 @@ int sceAtracSetHalfwayBufferAndGetID(int atracID, u32 halfBuffer, u32 readSize,
Atrac *atrac = new Atrac();
atrac->first.addr = halfBuffer;
atrac->first.size = halfBufferSize;
// TODO: This is an ugly approximation of song length.
atrac->decodeEnd = halfBufferSize * 3;
atrac->Analyze();
return createAtrac(atrac);
}
@ -519,8 +551,7 @@ int sceAtracSetAA3DataAndGetID(u32 buffer, int bufferSize, int fileSize, u32 met
Atrac *atrac = new Atrac();
atrac->first.addr = buffer;
atrac->first.size = bufferSize;
// TODO: This is an ugly approximation of song length.
atrac->decodeEnd = bufferSize * 3;
atrac->Analyze();
return createAtrac(atrac);
}