X-Git-Url: https://scm.cri.ensmp.fr/git/Faustine.git/blobdiff_plain/1059e1cc0c2ecfa237406949aa26155b6a5b9154:/interpretor/lib/src/libsndfile-1.0.25/src/GSM610/decode.c..66f23d4fabf89ad09adbd4dfc15ac6b5b2b7da83:/interpreter/lib/src/libsndfile-1.0.25/src/GSM610/static/gitweb.css diff --git a/interpretor/lib/src/libsndfile-1.0.25/src/GSM610/decode.c b/interpretor/lib/src/libsndfile-1.0.25/src/GSM610/decode.c deleted file mode 100644 index 350df12..0000000 --- a/interpretor/lib/src/libsndfile-1.0.25/src/GSM610/decode.c +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische - * Universitaet Berlin. See the accompanying file "COPYRIGHT" for - * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. - */ - -#include - -#include "gsm610_priv.h" - -/* - * 4.3 FIXED POINT IMPLEMENTATION OF THE RPE-LTP DECODER - */ - -static void Postprocessing ( - struct gsm_state * S, - register word * s) -{ - register int k; - register word msr = S->msr; - register word tmp; - - for (k = 160; k--; s++) { - tmp = GSM_MULT_R( msr, 28180 ); - msr = GSM_ADD(*s, tmp); /* Deemphasis */ - *s = GSM_ADD(msr, msr) & 0xFFF8; /* Truncation & Upscaling */ - } - S->msr = msr; -} - -void Gsm_Decoder ( - struct gsm_state * S, - - word * LARcr, /* [0..7] IN */ - - word * Ncr, /* [0..3] IN */ - word * bcr, /* [0..3] IN */ - word * Mcr, /* [0..3] IN */ - word * xmaxcr, /* [0..3] IN */ - word * xMcr, /* [0..13*4] IN */ - - word * s) /* [0..159] OUT */ -{ - int j, k; - word erp[40], wt[160]; - word * drp = S->dp0 + 120; - - for (j=0; j <= 3; j++, xmaxcr++, bcr++, Ncr++, Mcr++, xMcr += 13) { - - Gsm_RPE_Decoding( /*-S,-*/ *xmaxcr, *Mcr, xMcr, erp ); - Gsm_Long_Term_Synthesis_Filtering( S, *Ncr, *bcr, erp, drp ); - - for (k = 0; k <= 39; k++) wt[ j * 40 + k ] = drp[ k ]; - } - - Gsm_Short_Term_Synthesis_Filter( S, LARcr, wt, s ); - Postprocessing(S, s); -} -