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comparison miscutil/gsm0610.c @ 7:08804864172a

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miscutil/gsm0610.c: comment fix
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 14 Jun 2016 03:06:01 +0000
parents 7eaa3307e5df
children
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6:d57f68d0568d 7:08804864172a
1 /* 1 /*
2 * TI's DSP has API words from which GSM 06.10 codec bits that have been 2 * This code (lifted from OsmocomBB) facilitates the conversion of 33-byte
3 * demodulated from the downlink may be read, FreeCalypso firmware has 3 * GSM 06.10 encoded speech frames between the bit order at the 06.10 interface
4 * an experimental feature by way of which these bits may be forwarded 4 * in the de facto standard libgsm implementation and the bit order at the
5 * to the external host, and fc-shell provides a mechanism to record 5 * 05.03 channel encoder interface, as realized in TI's Calypso DSP.
6 * this downlink speech stream in a file. We would like to record these
7 * files in the libgsm format which the FLOSS world has adopted as the
8 * standard, so that they can be played with the SoX play command,
9 * for example. But the bit order is different between what TI's DSP
10 * gives us and libgsm, hence we need to reshuffle the bits here.
11 *
12 * Adapted from OsmocomBB.
13 */ 6 */
14 7
15 #include <sys/types.h> 8 #include <sys/types.h>
16 #include <string.h> 9 #include <string.h>
17 #include <strings.h> 10 #include <strings.h>