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Fix IMA4 decoding

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This commit is contained in:
Chris Robinson 2010-11-30 16:54:30 -08:00
parent a79129835c
commit 3f8ae8f1ce
1 changed files with 5 additions and 4 deletions
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5
OpenAL32/alBuffer.c
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@ -885,7 +885,8 @@ static void DecodeIMA4Block(ALshort *dst, const ALubyte *IMAData, ALint numchans
{ {
for(c = 0;c < numchans;c++) for(c = 0;c < numchans;c++)
{ {
Sample[c] += ((g_IMAStep_size[Index[c]]*g_IMACodeword_4[IMACode[c]&15])/8); Sample[c] += g_IMAStep_size[Index[c]] *
g_IMACodeword_4[IMACode[c]&15] / 8;
Index[c] += g_IMAIndex_adjust_4[IMACode[c]&15]; Index[c] += g_IMAIndex_adjust_4[IMACode[c]&15];
if(Sample[c] < -32768) Sample[c] = -32768; if(Sample[c] < -32768) Sample[c] = -32768;
@ -894,7 +895,7 @@ static void DecodeIMA4Block(ALshort *dst, const ALubyte *IMAData, ALint numchans
if(Index[c] < 0) Index[c] = 0; if(Index[c] < 0) Index[c] = 0;
else if(Index[c] > 88) Index[c] = 88; else if(Index[c] > 88) Index[c] = 88;
dst[(j+k)*numchans + c] = Sample[c]; dst[j*numchans + c] = Sample[c];
IMACode[c] >>= 4; IMACode[c] >>= 4;
} }
} }