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| author | Monty <xiphmont@xiph.org> | 2002-10-16 08:10:09 +0000 |
|---|---|---|
| committer | Monty <xiphmont@xiph.org> | 2002-10-16 08:10:09 +0000 |
| commit | 0185fc26b02cacd81d6e7c5745ff0752afdb4b1c (patch) | |
| tree | f4c9287176f2a270383857d6faafc9768b9c5342 /mdct.c | |
| parent | 049a933452752e5efb7a63637bc24ea256b0b2db (diff) | |
| download | tremor-0185fc26b02cacd81d6e7c5745ff0752afdb4b1c.tar.gz | |
const-ify a few things that really ought to be.
git-svn-id: https://svn.xiph.org/trunk/Tremor@4010 0101bb08-14d6-0310-b084-bc0e0c8e3800
Diffstat (limited to 'mdct.c')
| -rw-r--r-- | mdct.c | 12 |
1 files changed, 6 insertions, 6 deletions
@@ -13,7 +13,7 @@ function: normalized modified discrete cosine transform power of two length transform only [64 <= n ] - last mod: $Id: mdct.c,v 1.6 2002/10/16 07:39:56 xiphmont Exp $ + last mod: $Id: mdct.c,v 1.7 2002/10/16 08:10:08 xiphmont Exp $ Original algorithm adapted long ago from _The use of multirate filter banks for coding of high quality digital audio_, by T. Sporer, @@ -151,7 +151,7 @@ STIN void mdct_butterfly_32(DATA_TYPE *x){ /* N/stage point generic N stage butterfly (in place, 2 register) */ STIN void mdct_butterfly_generic(DATA_TYPE *x,int points,int step){ - DATA_TYPE *T = sincos_lookup0; + const DATA_TYPE *T = sincos_lookup0; DATA_TYPE *x1 = x + points - 8; DATA_TYPE *x2 = x + (points>>1) - 8; REG_TYPE r0; @@ -261,8 +261,8 @@ STIN void mdct_bitreverse(DATA_TYPE *x,int n,int step,int shift){ int bit = 0; DATA_TYPE *w0 = x; DATA_TYPE *w1 = x = w0+(n>>1); - DATA_TYPE *T = (step>=4)?(sincos_lookup0+(step>>1)):sincos_lookup1; - DATA_TYPE *Ttop = T+1024; + const DATA_TYPE *T = (step>=4)?(sincos_lookup0+(step>>1)):sincos_lookup1; + const DATA_TYPE *Ttop = T+1024; DATA_TYPE r2; do{ @@ -346,8 +346,8 @@ void mdct_backward(int n, DATA_TYPE *in, DATA_TYPE *out){ int n4=n>>2; DATA_TYPE *iX; DATA_TYPE *oX; - DATA_TYPE *T; - DATA_TYPE *V; + const DATA_TYPE *T; + const DATA_TYPE *V; int shift; int step; |