--- /dev/null
+/*
+ * 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 "gsm610_priv.h"
+
+#include "gsm.h"
+
+int gsm_decode (gsm s, gsm_byte * c, gsm_signal * target)
+{
+ word LARc[8], Nc[4], Mc[4], bc[4], xmaxc[4], xmc[13*4];
+
+#ifdef WAV49
+ if (s->wav_fmt) {
+
+ uword sr = 0;
+
+ s->frame_index = !s->frame_index;
+ if (s->frame_index) {
+
+ sr = *c++;
+ LARc[0] = sr & 0x3f; sr >>= 6;
+ sr |= (uword)*c++ << 2;
+ LARc[1] = sr & 0x3f; sr >>= 6;
+ sr |= (uword)*c++ << 4;
+ LARc[2] = sr & 0x1f; sr >>= 5;
+ LARc[3] = sr & 0x1f; sr >>= 5;
+ sr |= (uword)*c++ << 2;
+ LARc[4] = sr & 0xf; sr >>= 4;
+ LARc[5] = sr & 0xf; sr >>= 4;
+ sr |= (uword)*c++ << 2; /* 5 */
+ LARc[6] = sr & 0x7; sr >>= 3;
+ LARc[7] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 4;
+ Nc[0] = sr & 0x7f; sr >>= 7;
+ bc[0] = sr & 0x3; sr >>= 2;
+ Mc[0] = sr & 0x3; sr >>= 2;
+ sr |= (uword)*c++ << 1;
+ xmaxc[0] = sr & 0x3f; sr >>= 6;
+ xmc[0] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ xmc[1] = sr & 0x7; sr >>= 3;
+ xmc[2] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2;
+ xmc[3] = sr & 0x7; sr >>= 3;
+ xmc[4] = sr & 0x7; sr >>= 3;
+ xmc[5] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1; /* 10 */
+ xmc[6] = sr & 0x7; sr >>= 3;
+ xmc[7] = sr & 0x7; sr >>= 3;
+ xmc[8] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ xmc[9] = sr & 0x7; sr >>= 3;
+ xmc[10] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2;
+ xmc[11] = sr & 0x7; sr >>= 3;
+ xmc[12] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 4;
+ Nc[1] = sr & 0x7f; sr >>= 7;
+ bc[1] = sr & 0x3; sr >>= 2;
+ Mc[1] = sr & 0x3; sr >>= 2;
+ sr |= (uword)*c++ << 1;
+ xmaxc[1] = sr & 0x3f; sr >>= 6;
+ xmc[13] = sr & 0x7; sr >>= 3;
+ sr = *c++; /* 15 */
+ xmc[14] = sr & 0x7; sr >>= 3;
+ xmc[15] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2;
+ xmc[16] = sr & 0x7; sr >>= 3;
+ xmc[17] = sr & 0x7; sr >>= 3;
+ xmc[18] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1;
+ xmc[19] = sr & 0x7; sr >>= 3;
+ xmc[20] = sr & 0x7; sr >>= 3;
+ xmc[21] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ xmc[22] = sr & 0x7; sr >>= 3;
+ xmc[23] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2;
+ xmc[24] = sr & 0x7; sr >>= 3;
+ xmc[25] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 4; /* 20 */
+ Nc[2] = sr & 0x7f; sr >>= 7;
+ bc[2] = sr & 0x3; sr >>= 2;
+ Mc[2] = sr & 0x3; sr >>= 2;
+ sr |= (uword)*c++ << 1;
+ xmaxc[2] = sr & 0x3f; sr >>= 6;
+ xmc[26] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ xmc[27] = sr & 0x7; sr >>= 3;
+ xmc[28] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2;
+ xmc[29] = sr & 0x7; sr >>= 3;
+ xmc[30] = sr & 0x7; sr >>= 3;
+ xmc[31] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1;
+ xmc[32] = sr & 0x7; sr >>= 3;
+ xmc[33] = sr & 0x7; sr >>= 3;
+ xmc[34] = sr & 0x7; sr >>= 3;
+ sr = *c++; /* 25 */
+ xmc[35] = sr & 0x7; sr >>= 3;
+ xmc[36] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2;
+ xmc[37] = sr & 0x7; sr >>= 3;
+ xmc[38] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 4;
+ Nc[3] = sr & 0x7f; sr >>= 7;
+ bc[3] = sr & 0x3; sr >>= 2;
+ Mc[3] = sr & 0x3; sr >>= 2;
+ sr |= (uword)*c++ << 1;
+ xmaxc[3] = sr & 0x3f; sr >>= 6;
+ xmc[39] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ xmc[40] = sr & 0x7; sr >>= 3;
+ xmc[41] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2; /* 30 */
+ xmc[42] = sr & 0x7; sr >>= 3;
+ xmc[43] = sr & 0x7; sr >>= 3;
+ xmc[44] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1;
+ xmc[45] = sr & 0x7; sr >>= 3;
+ xmc[46] = sr & 0x7; sr >>= 3;
+ xmc[47] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ xmc[48] = sr & 0x7; sr >>= 3;
+ xmc[49] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2;
+ xmc[50] = sr & 0x7; sr >>= 3;
+ xmc[51] = sr & 0x7; sr >>= 3;
+
+ s->frame_chain = sr & 0xf;
+ }
+ else {
+ sr = s->frame_chain;
+ sr |= (uword)*c++ << 4; /* 1 */
+ LARc[0] = sr & 0x3f; sr >>= 6;
+ LARc[1] = sr & 0x3f; sr >>= 6;
+ sr = *c++;
+ LARc[2] = sr & 0x1f; sr >>= 5;
+ sr |= (uword)*c++ << 3;
+ LARc[3] = sr & 0x1f; sr >>= 5;
+ LARc[4] = sr & 0xf; sr >>= 4;
+ sr |= (uword)*c++ << 2;
+ LARc[5] = sr & 0xf; sr >>= 4;
+ LARc[6] = sr & 0x7; sr >>= 3;
+ LARc[7] = sr & 0x7; sr >>= 3;
+ sr = *c++; /* 5 */
+ Nc[0] = sr & 0x7f; sr >>= 7;
+ sr |= (uword)*c++ << 1;
+ bc[0] = sr & 0x3; sr >>= 2;
+ Mc[0] = sr & 0x3; sr >>= 2;
+ sr |= (uword)*c++ << 5;
+ xmaxc[0] = sr & 0x3f; sr >>= 6;
+ xmc[0] = sr & 0x7; sr >>= 3;
+ xmc[1] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1;
+ xmc[2] = sr & 0x7; sr >>= 3;
+ xmc[3] = sr & 0x7; sr >>= 3;
+ xmc[4] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ xmc[5] = sr & 0x7; sr >>= 3;
+ xmc[6] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2; /* 10 */
+ xmc[7] = sr & 0x7; sr >>= 3;
+ xmc[8] = sr & 0x7; sr >>= 3;
+ xmc[9] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1;
+ xmc[10] = sr & 0x7; sr >>= 3;
+ xmc[11] = sr & 0x7; sr >>= 3;
+ xmc[12] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ Nc[1] = sr & 0x7f; sr >>= 7;
+ sr |= (uword)*c++ << 1;
+ bc[1] = sr & 0x3; sr >>= 2;
+ Mc[1] = sr & 0x3; sr >>= 2;
+ sr |= (uword)*c++ << 5;
+ xmaxc[1] = sr & 0x3f; sr >>= 6;
+ xmc[13] = sr & 0x7; sr >>= 3;
+ xmc[14] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1; /* 15 */
+ xmc[15] = sr & 0x7; sr >>= 3;
+ xmc[16] = sr & 0x7; sr >>= 3;
+ xmc[17] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ xmc[18] = sr & 0x7; sr >>= 3;
+ xmc[19] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2;
+ xmc[20] = sr & 0x7; sr >>= 3;
+ xmc[21] = sr & 0x7; sr >>= 3;
+ xmc[22] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1;
+ xmc[23] = sr & 0x7; sr >>= 3;
+ xmc[24] = sr & 0x7; sr >>= 3;
+ xmc[25] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ Nc[2] = sr & 0x7f; sr >>= 7;
+ sr |= (uword)*c++ << 1; /* 20 */
+ bc[2] = sr & 0x3; sr >>= 2;
+ Mc[2] = sr & 0x3; sr >>= 2;
+ sr |= (uword)*c++ << 5;
+ xmaxc[2] = sr & 0x3f; sr >>= 6;
+ xmc[26] = sr & 0x7; sr >>= 3;
+ xmc[27] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1;
+ xmc[28] = sr & 0x7; sr >>= 3;
+ xmc[29] = sr & 0x7; sr >>= 3;
+ xmc[30] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ xmc[31] = sr & 0x7; sr >>= 3;
+ xmc[32] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2;
+ xmc[33] = sr & 0x7; sr >>= 3;
+ xmc[34] = sr & 0x7; sr >>= 3;
+ xmc[35] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1; /* 25 */
+ xmc[36] = sr & 0x7; sr >>= 3;
+ xmc[37] = sr & 0x7; sr >>= 3;
+ xmc[38] = sr & 0x7; sr >>= 3;
+ sr = *c++;
+ Nc[3] = sr & 0x7f; sr >>= 7;
+ sr |= (uword)*c++ << 1;
+ bc[3] = sr & 0x3; sr >>= 2;
+ Mc[3] = sr & 0x3; sr >>= 2;
+ sr |= (uword)*c++ << 5;
+ xmaxc[3] = sr & 0x3f; sr >>= 6;
+ xmc[39] = sr & 0x7; sr >>= 3;
+ xmc[40] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1;
+ xmc[41] = sr & 0x7; sr >>= 3;
+ xmc[42] = sr & 0x7; sr >>= 3;
+ xmc[43] = sr & 0x7; sr >>= 3;
+ sr = *c++; /* 30 */
+ xmc[44] = sr & 0x7; sr >>= 3;
+ xmc[45] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 2;
+ xmc[46] = sr & 0x7; sr >>= 3;
+ xmc[47] = sr & 0x7; sr >>= 3;
+ xmc[48] = sr & 0x7; sr >>= 3;
+ sr |= (uword)*c++ << 1;
+ xmc[49] = sr & 0x7; sr >>= 3;
+ xmc[50] = sr & 0x7; sr >>= 3;
+ xmc[51] = sr & 0x7; sr >>= 3;
+ }
+ }
+ else
+#endif
+ {
+ /* GSM_MAGIC = (*c >> 4) & 0xF; */
+
+ if (((*c >> 4) & 0x0F) != GSM_MAGIC) return -1;
+
+ LARc[0] = (*c++ & 0xF) << 2; /* 1 */
+ LARc[0] |= (*c >> 6) & 0x3;
+ LARc[1] = *c++ & 0x3F;
+ LARc[2] = (*c >> 3) & 0x1F;
+ LARc[3] = (*c++ & 0x7) << 2;
+ LARc[3] |= (*c >> 6) & 0x3;
+ LARc[4] = (*c >> 2) & 0xF;
+ LARc[5] = (*c++ & 0x3) << 2;
+ LARc[5] |= (*c >> 6) & 0x3;
+ LARc[6] = (*c >> 3) & 0x7;
+ LARc[7] = *c++ & 0x7;
+ Nc[0] = (*c >> 1) & 0x7F;
+ bc[0] = (*c++ & 0x1) << 1;
+ bc[0] |= (*c >> 7) & 0x1;
+ Mc[0] = (*c >> 5) & 0x3;
+ xmaxc[0] = (*c++ & 0x1F) << 1;
+ xmaxc[0] |= (*c >> 7) & 0x1;
+ xmc[0] = (*c >> 4) & 0x7;
+ xmc[1] = (*c >> 1) & 0x7;
+ xmc[2] = (*c++ & 0x1) << 2;
+ xmc[2] |= (*c >> 6) & 0x3;
+ xmc[3] = (*c >> 3) & 0x7;
+ xmc[4] = *c++ & 0x7;
+ xmc[5] = (*c >> 5) & 0x7;
+ xmc[6] = (*c >> 2) & 0x7;
+ xmc[7] = (*c++ & 0x3) << 1; /* 10 */
+ xmc[7] |= (*c >> 7) & 0x1;
+ xmc[8] = (*c >> 4) & 0x7;
+ xmc[9] = (*c >> 1) & 0x7;
+ xmc[10] = (*c++ & 0x1) << 2;
+ xmc[10] |= (*c >> 6) & 0x3;
+ xmc[11] = (*c >> 3) & 0x7;
+ xmc[12] = *c++ & 0x7;
+ Nc[1] = (*c >> 1) & 0x7F;
+ bc[1] = (*c++ & 0x1) << 1;
+ bc[1] |= (*c >> 7) & 0x1;
+ Mc[1] = (*c >> 5) & 0x3;
+ xmaxc[1] = (*c++ & 0x1F) << 1;
+ xmaxc[1] |= (*c >> 7) & 0x1;
+ xmc[13] = (*c >> 4) & 0x7;
+ xmc[14] = (*c >> 1) & 0x7;
+ xmc[15] = (*c++ & 0x1) << 2;
+ xmc[15] |= (*c >> 6) & 0x3;
+ xmc[16] = (*c >> 3) & 0x7;
+ xmc[17] = *c++ & 0x7;
+ xmc[18] = (*c >> 5) & 0x7;
+ xmc[19] = (*c >> 2) & 0x7;
+ xmc[20] = (*c++ & 0x3) << 1;
+ xmc[20] |= (*c >> 7) & 0x1;
+ xmc[21] = (*c >> 4) & 0x7;
+ xmc[22] = (*c >> 1) & 0x7;
+ xmc[23] = (*c++ & 0x1) << 2;
+ xmc[23] |= (*c >> 6) & 0x3;
+ xmc[24] = (*c >> 3) & 0x7;
+ xmc[25] = *c++ & 0x7;
+ Nc[2] = (*c >> 1) & 0x7F;
+ bc[2] = (*c++ & 0x1) << 1; /* 20 */
+ bc[2] |= (*c >> 7) & 0x1;
+ Mc[2] = (*c >> 5) & 0x3;
+ xmaxc[2] = (*c++ & 0x1F) << 1;
+ xmaxc[2] |= (*c >> 7) & 0x1;
+ xmc[26] = (*c >> 4) & 0x7;
+ xmc[27] = (*c >> 1) & 0x7;
+ xmc[28] = (*c++ & 0x1) << 2;
+ xmc[28] |= (*c >> 6) & 0x3;
+ xmc[29] = (*c >> 3) & 0x7;
+ xmc[30] = *c++ & 0x7;
+ xmc[31] = (*c >> 5) & 0x7;
+ xmc[32] = (*c >> 2) & 0x7;
+ xmc[33] = (*c++ & 0x3) << 1;
+ xmc[33] |= (*c >> 7) & 0x1;
+ xmc[34] = (*c >> 4) & 0x7;
+ xmc[35] = (*c >> 1) & 0x7;
+ xmc[36] = (*c++ & 0x1) << 2;
+ xmc[36] |= (*c >> 6) & 0x3;
+ xmc[37] = (*c >> 3) & 0x7;
+ xmc[38] = *c++ & 0x7;
+ Nc[3] = (*c >> 1) & 0x7F;
+ bc[3] = (*c++ & 0x1) << 1;
+ bc[3] |= (*c >> 7) & 0x1;
+ Mc[3] = (*c >> 5) & 0x3;
+ xmaxc[3] = (*c++ & 0x1F) << 1;
+ xmaxc[3] |= (*c >> 7) & 0x1;
+ xmc[39] = (*c >> 4) & 0x7;
+ xmc[40] = (*c >> 1) & 0x7;
+ xmc[41] = (*c++ & 0x1) << 2;
+ xmc[41] |= (*c >> 6) & 0x3;
+ xmc[42] = (*c >> 3) & 0x7;
+ xmc[43] = *c++ & 0x7; /* 30 */
+ xmc[44] = (*c >> 5) & 0x7;
+ xmc[45] = (*c >> 2) & 0x7;
+ xmc[46] = (*c++ & 0x3) << 1;
+ xmc[46] |= (*c >> 7) & 0x1;
+ xmc[47] = (*c >> 4) & 0x7;
+ xmc[48] = (*c >> 1) & 0x7;
+ xmc[49] = (*c++ & 0x1) << 2;
+ xmc[49] |= (*c >> 6) & 0x3;
+ xmc[50] = (*c >> 3) & 0x7;
+ xmc[51] = *c & 0x7; /* 33 */
+ }
+
+ Gsm_Decoder(s, LARc, Nc, bc, Mc, xmaxc, xmc, target);
+
+ return 0;
+}
+
projects / Faustine.git / blobdiff