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Merge commit '58884e4c1bb455db90a35df3f7480cfd355eb8c6' into main

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This commit is contained in:
Sam Lantinga 2021-05-07 12:28:51 -07:00
commit e8eb0b15fe
1 changed files with 8 additions and 8 deletions
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16
src/audio/SDL_audiocvt.c
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@ -246,8 +246,8 @@ SDL_ConvertStereoTo51(SDL_AudioCVT * cvt, SDL_AudioFormat format)
lf = src[0]; lf = src[0];
rf = src[1]; rf = src[1];
ce = (lf + rf) * 0.5f; ce = (lf + rf) * 0.5f;
dst[0] = 0.5 * (lf + (lf - ce)); /* FL */ dst[0] = 0.5f * (lf + (lf - ce)); /* FL */
dst[1] = 0.5 * (rf + (rf - ce)); /* FR */ dst[1] = 0.5f * (rf + (rf - ce)); /* FR */
dst[2] = ce; /* FC */ dst[2] = ce; /* FC */
dst[3] = 0; /* LFE (only meant for special LFE effects) */ dst[3] = 0; /* LFE (only meant for special LFE effects) */
dst[4] = lf; /* BL */ dst[4] = lf; /* BL */
@ -282,8 +282,8 @@ SDL_ConvertQuadTo51(SDL_AudioCVT * cvt, SDL_AudioFormat format)
lb = src[2]; lb = src[2];
rb = src[3]; rb = src[3];
ce = (lf + rf) * 0.5f; ce = (lf + rf) * 0.5f;
dst[0] = 0.5 * (lf + (lf - ce)); /* FL */ dst[0] = 0.5f * (lf + (lf - ce)); /* FL */
dst[1] = 0.5 * (rf + (rf - ce)); /* FR */ dst[1] = 0.5f * (rf + (rf - ce)); /* FR */
dst[2] = ce; /* FC */ dst[2] = ce; /* FC */
dst[3] = 0; /* LFE (only meant for special LFE effects) */ dst[3] = 0; /* LFE (only meant for special LFE effects) */
dst[4] = lb; /* BL */ dst[4] = lb; /* BL */
@ -357,10 +357,10 @@ SDL_Convert51To71(SDL_AudioCVT * cvt, SDL_AudioFormat format)
dst[2] = src[2]; /* FC */ dst[2] = src[2]; /* FC */
dst[7] = rs; /* SR */ dst[7] = rs; /* SR */
dst[6] = ls; /* SL */ dst[6] = ls; /* SL */
dst[5] = 0.5 * rb; /* BR */ dst[5] = 0.5f * rb; /* BR */
dst[4] = 0.5 * lb; /* BL */ dst[4] = 0.5f * lb; /* BL */
dst[1] = 0.5 * rf; /* FR */ dst[1] = 0.5f * rf; /* FR */
dst[0] = 0.5 * lf; /* FL */ dst[0] = 0.5f * lf; /* FL */
} }
cvt->len_cvt = cvt->len_cvt * 4 / 3; cvt->len_cvt = cvt->len_cvt * 4 / 3;