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Audio: convert 5.1 to 7.1, use right-surround for r-front and r-back (see #4104)
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@ -353,9 +353,9 @@ SDL_Convert51To71(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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rs = (rf + rb) * 0.5f;
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/* !!! FIXME: these four may clip */
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lf += lf - ls;
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rf += rf - ls;
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rf += rf - rs;
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lb += lb - ls;
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rb += rb - ls;
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rb += rb - rs;
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dst[3] = src[3]; /* LFE */
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dst[2] = src[2]; /* FC */
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dst[7] = rs; /* SR */
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