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Audio decoding

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This commit is contained in:
Nekotekina 2014-03-19 04:32:23 +04:00
parent c4d9223034
commit 38bfbe2c40
11 changed files with 355 additions and 95 deletions
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18
rpcs3/Emu/SysCalls/Modules/cellAudio.cpp
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@ -118,29 +118,37 @@ int cellAudioInit()
index = (position + 1) % port.block; // write new value
}
u32 k = port.channel / 2;
if (first_mix)
{
for (u32 i = 0; i < (sizeof(buffer) / sizeof(float)); i++)
for (u32 i = 0; i < (sizeof(buffer) / sizeof(float)); i += 2)
{
// reverse byte order (TODO: use port.m_param.level)
buffer[i] = buffer2[i];
buffer[i] = buffer2[i*k];
buffer[i+1] = buffer2[i*k+1];
// convert the data from float to u16
assert(buffer[i] >= -4.0f && buffer[i] <= 4.0f);
assert(buffer[i+1] >= -4.0f && buffer[i+1] <= 4.0f);
oal_buffer[oal_buffer_offset + i] = (u16)(buffer[i] * ((1 << 13) - 1));
oal_buffer[oal_buffer_offset + i + 1] = (u16)(buffer[i+1] * ((1 << 13) - 1));
}
first_mix = false;
}
else
{
for (u32 i = 0; i < (sizeof(buffer) / sizeof(float)); i++)
for (u32 i = 0; i < (sizeof(buffer) / sizeof(float)); i += 2)
{
buffer[i] = (buffer[i] + buffer2[i]) * 0.5; // TODO: valid mixing
buffer[i] = (buffer[i] + buffer2[i*k]) * 0.5; // TODO: valid mixing
buffer[i+1] = (buffer[i+1] + buffer2[i*k+1]) * 0.5;
// convert the data from float to u16
assert(buffer[i] >= -4.0f && buffer[i] <= 4.0f);
assert(buffer[i+1] >= -4.0f && buffer[i+1] <= 4.0f);
oal_buffer[oal_buffer_offset + i] = (u16)(buffer[i] * ((1 << 13) - 1));
oal_buffer[oal_buffer_offset + i + 1] = (u16)(buffer[i+1] * ((1 << 13) - 1));
}
}
}
@ -176,8 +184,6 @@ int cellAudioInit()
ConLog.Error("Port aborted: cannot write file!");
goto abort;
}
m_dump.UpdateHeader(sizeof(buffer));
}
}
ConLog.Write("Audio finished");