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Defines | |
| #define | GSM_MAGIC 0xD |
| #define | readGSM_33(c1) |
| #define | writeGSM_33(c1) |
Typedefs | |
| typedef unsigned char | gsm_byte |
| typedef unsigned int | uword |
| typedef unsigned char | wav_byte |
Functions | |
| static void | conv65 (wav_byte *c, gsm_byte *d) |
| static void | conv66 (gsm_byte *d, wav_byte *c) |
Define Documentation
| #define readGSM_33 | ( | c1 | ) |
| #define writeGSM_33 | ( | c1 | ) |
Typedef Documentation
Function Documentation
Definition at line 455 of file msgsm.h.
References writeGSM_33.
Referenced by gsm_write(), gsmtolin_framein(), and wav_read().
{
unsigned int sr = 0;
unsigned int frame_chain;
unsigned int LARc[8], Nc[4], Mc[4], bc[4], xmaxc[4];
/* silence bogus compiler warning */
unsigned int xmc[13*4] = { 0, };
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[49] = sr & 0x7; sr >>= 3;
sr |= (uword)*c++ << 2;
xmc[50] = sr & 0x7; sr >>= 3;
xmc[51] = sr & 0x7; sr >>= 3;
frame_chain = sr & 0xf;
writeGSM_33(d);/* LARc etc. -> array of 33 GSM bytes */
sr = 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;
writeGSM_33(d+33);
}
Definition at line 114 of file msgsm.h.
References readGSM_33.
Referenced by wav_write().
{
gsm_byte frame_chain;
unsigned int sr;
unsigned int LARc[8], Nc[4], Mc[4], bc[4], xmaxc[4], xmc[13*4];
readGSM_33(d);
sr = 0;
sr = (sr >> 6) | (LARc[0] << 10);
sr = (sr >> 6) | (LARc[1] << 10);
*c++ = sr >> 4;
sr = (sr >> 5) | (LARc[2] << 11);
*c++ = sr >> 7;
sr = (sr >> 5) | (LARc[3] << 11);
sr = (sr >> 4) | (LARc[4] << 12);
*c++ = sr >> 6;
sr = (sr >> 4) | (LARc[5] << 12);
sr = (sr >> 3) | (LARc[6] << 13);
*c++ = sr >> 7;
sr = (sr >> 3) | (LARc[7] << 13);
sr = (sr >> 7) | (Nc[0] << 9);
*c++ = sr >> 5;
sr = (sr >> 2) | (bc[0] << 14);
sr = (sr >> 2) | (Mc[0] << 14);
sr = (sr >> 6) | (xmaxc[0] << 10);
*c++ = sr >> 3;
sr = (sr >> 3 )|( xmc[0] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[1] << 13);
sr = (sr >> 3 )|( xmc[2] << 13);
sr = (sr >> 3 )|( xmc[3] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[4] << 13);
sr = (sr >> 3 )|( xmc[5] << 13);
sr = (sr >> 3 )|( xmc[6] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[7] << 13);
sr = (sr >> 3 )|( xmc[8] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[9] << 13);
sr = (sr >> 3 )|( xmc[10] << 13);
sr = (sr >> 3 )|( xmc[11] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[12] << 13);
sr = (sr >> 7 )|( Nc[1] << 9);
*c++ = sr >> 5;
sr = (sr >> 2 )|( bc[1] << 14);
sr = (sr >> 2 )|( Mc[1] << 14);
sr = (sr >> 6 )|( xmaxc[1] << 10);
*c++ = sr >> 3;
sr = (sr >> 3 )|( xmc[13] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[14] << 13);
sr = (sr >> 3 )|( xmc[15] << 13);
sr = (sr >> 3 )|( xmc[16] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[17] << 13);
sr = (sr >> 3 )|( xmc[18] << 13);
sr = (sr >> 3 )|( xmc[19] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[20] << 13);
sr = (sr >> 3 )|( xmc[21] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[22] << 13);
sr = (sr >> 3 )|( xmc[23] << 13);
sr = (sr >> 3 )|( xmc[24] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[25] << 13);
sr = (sr >> 7 )|( Nc[2] << 9);
*c++ = sr >> 5;
sr = (sr >> 2 )|( bc[2] << 14);
sr = (sr >> 2 )|( Mc[2] << 14);
sr = (sr >> 6 )|( xmaxc[2] << 10);
*c++ = sr >> 3;
sr = (sr >> 3 )|( xmc[26] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[27] << 13);
sr = (sr >> 3 )|( xmc[28] << 13);
sr = (sr >> 3 )|( xmc[29] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[30] << 13);
sr = (sr >> 3 )|( xmc[31] << 13);
sr = (sr >> 3 )|( xmc[32] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[33] << 13);
sr = (sr >> 3 )|( xmc[34] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[35] << 13);
sr = (sr >> 3 )|( xmc[36] << 13);
sr = (sr >> 3 )|( xmc[37] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[38] << 13);
sr = (sr >> 7 )|( Nc[3] << 9);
*c++ = sr >> 5;
sr = (sr >> 2 )|( bc[3] << 14);
sr = (sr >> 2 )|( Mc[3] << 14);
sr = (sr >> 6 )|( xmaxc[3] << 10);
*c++ = sr >> 3;
sr = (sr >> 3 )|( xmc[39] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[40] << 13);
sr = (sr >> 3 )|( xmc[41] << 13);
sr = (sr >> 3 )|( xmc[42] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[43] << 13);
sr = (sr >> 3 )|( xmc[44] << 13);
sr = (sr >> 3 )|( xmc[45] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[46] << 13);
sr = (sr >> 3 )|( xmc[47] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[48] << 13);
sr = (sr >> 3 )|( xmc[49] << 13);
sr = (sr >> 3 )|( xmc[50] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[51] << 13);
sr = sr >> 4;
*c = sr >> 8;
frame_chain = *c;
readGSM_33(d+33); /* puts all the parameters into LARc etc. */
sr = 0;
/* sr = (sr >> 4 )|( s->frame_chain << 12); */
sr = (sr >> 4 )|( frame_chain << 12);
sr = (sr >> 6 )|( LARc[0] << 10);
*c++ = sr >> 6;
sr = (sr >> 6 )|( LARc[1] << 10);
*c++ = sr >> 8;
sr = (sr >> 5 )|( LARc[2] << 11);
sr = (sr >> 5 )|( LARc[3] << 11);
*c++ = sr >> 6;
sr = (sr >> 4 )|( LARc[4] << 12);
sr = (sr >> 4 )|( LARc[5] << 12);
*c++ = sr >> 6;
sr = (sr >> 3 )|( LARc[6] << 13);
sr = (sr >> 3 )|( LARc[7] << 13);
*c++ = sr >> 8;
sr = (sr >> 7 )|( Nc[0] << 9);
sr = (sr >> 2 )|( bc[0] << 14);
*c++ = sr >> 7;
sr = (sr >> 2 )|( Mc[0] << 14);
sr = (sr >> 6 )|( xmaxc[0] << 10);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[0] << 13);
sr = (sr >> 3 )|( xmc[1] << 13);
sr = (sr >> 3 )|( xmc[2] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[3] << 13);
sr = (sr >> 3 )|( xmc[4] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[5] << 13);
sr = (sr >> 3 )|( xmc[6] << 13);
sr = (sr >> 3 )|( xmc[7] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[8] << 13);
sr = (sr >> 3 )|( xmc[9] << 13);
sr = (sr >> 3 )|( xmc[10] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[11] << 13);
sr = (sr >> 3 )|( xmc[12] << 13);
*c++ = sr >> 8;
sr = (sr >> 7 )|( Nc[1] << 9);
sr = (sr >> 2 )|( bc[1] << 14);
*c++ = sr >> 7;
sr = (sr >> 2 )|( Mc[1] << 14);
sr = (sr >> 6 )|( xmaxc[1] << 10);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[13] << 13);
sr = (sr >> 3 )|( xmc[14] << 13);
sr = (sr >> 3 )|( xmc[15] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[16] << 13);
sr = (sr >> 3 )|( xmc[17] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[18] << 13);
sr = (sr >> 3 )|( xmc[19] << 13);
sr = (sr >> 3 )|( xmc[20] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[21] << 13);
sr = (sr >> 3 )|( xmc[22] << 13);
sr = (sr >> 3 )|( xmc[23] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[24] << 13);
sr = (sr >> 3 )|( xmc[25] << 13);
*c++ = sr >> 8;
sr = (sr >> 7 )|( Nc[2] << 9);
sr = (sr >> 2 )|( bc[2] << 14);
*c++ = sr >> 7;
sr = (sr >> 2 )|( Mc[2] << 14);
sr = (sr >> 6 )|( xmaxc[2] << 10);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[26] << 13);
sr = (sr >> 3 )|( xmc[27] << 13);
sr = (sr >> 3 )|( xmc[28] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[29] << 13);
sr = (sr >> 3 )|( xmc[30] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[31] << 13);
sr = (sr >> 3 )|( xmc[32] << 13);
sr = (sr >> 3 )|( xmc[33] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[34] << 13);
sr = (sr >> 3 )|( xmc[35] << 13);
sr = (sr >> 3 )|( xmc[36] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[37] << 13);
sr = (sr >> 3 )|( xmc[38] << 13);
*c++ = sr >> 8;
sr = (sr >> 7 )|( Nc[3] << 9);
sr = (sr >> 2 )|( bc[3] << 14);
*c++ = sr >> 7;
sr = (sr >> 2 )|( Mc[3] << 14);
sr = (sr >> 6 )|( xmaxc[3] << 10);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[39] << 13);
sr = (sr >> 3 )|( xmc[40] << 13);
sr = (sr >> 3 )|( xmc[41] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[42] << 13);
sr = (sr >> 3 )|( xmc[43] << 13);
*c++ = sr >> 8;
sr = (sr >> 3 )|( xmc[44] << 13);
sr = (sr >> 3 )|( xmc[45] << 13);
sr = (sr >> 3 )|( xmc[46] << 13);
*c++ = sr >> 7;
sr = (sr >> 3 )|( xmc[47] << 13);
sr = (sr >> 3 )|( xmc[48] << 13);
sr = (sr >> 3 )|( xmc[49] << 13);
*c++ = sr >> 6;
sr = (sr >> 3 )|( xmc[50] << 13);
sr = (sr >> 3 )|( xmc[51] << 13);
*c++ = sr >> 8;
}
