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use downmixing coefficients in dca decoder.

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Subject: [Ffmpeg-devel] [PATCH] DTS multichannel
Date: Wed, 25 Apr 2007 16:25:18 -0400

Originally committed as revision 8875 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles
2007-05-02 20:33:32 +00:00
parent cc82662662
commit c31a76e4ef
2 changed files with 47 additions and 19 deletions
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libavcodec/dcadata.h
+13
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@@ -8361,6 +8361,19 @@ static const float dca_downmix_coeffs[65] = {
0.001412537544623, 0.001000000000000, 0.000501187233627, 0.000251188643151, 0.000000000000000,
};
static const uint8_t dca_default_coeffs[16][5][2] = {
{ { 13, 13 }, },
{ { 0, 64 }, { 64, 0 }, },
{ { 0, 64 }, { 64, 0 }, },
{ { 0, 64 }, { 64, 0 }, },
{ { 0, 64 }, { 64, 0 }, },
{ { 6, 6 }, { 0, 25 }, { 25, 0 }, },
{ { 0, 25 }, { 25, 0 }, { 13, 13 }, },
{ { 6, 6 }, { 0, 25 }, { 25, 0 }, { 13, 13 }, },
{ { 0, 25 }, { 25, 0 }, { 0, 13 }, { 13, 0 }, },
{ { 6, 6 }, { 0, 25 }, { 25, 0 }, { 0, 13 }, { 13, 0 }, },
};
/* downmix coeffs
TABLE 9