changeset 7:08804864172a

miscutil/gsm0610.c: comment fix
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 14 Jun 2016 03:06:01 +0000
parents d57f68d0568d
children 2748f257312b
files miscutil/gsm0610.c
diffstat 1 files changed, 4 insertions(+), 11 deletions(-) [+]
line wrap: on
line diff
--- a/miscutil/gsm0610.c	Tue Jun 14 02:45:09 2016 +0000
+++ b/miscutil/gsm0610.c	Tue Jun 14 03:06:01 2016 +0000
@@ -1,15 +1,8 @@
 /*
- * TI's DSP has API words from which GSM 06.10 codec bits that have been
- * demodulated from the downlink may be read, FreeCalypso firmware has
- * an experimental feature by way of which these bits may be forwarded
- * to the external host, and fc-shell provides a mechanism to record
- * this downlink speech stream in a file.  We would like to record these
- * files in the libgsm format which the FLOSS world has adopted as the
- * standard, so that they can be played with the SoX play command,
- * for example.  But the bit order is different between what TI's DSP
- * gives us and libgsm, hence we need to reshuffle the bits here.
- *
- * Adapted from OsmocomBB.
+ * This code (lifted from OsmocomBB) facilitates the conversion of 33-byte
+ * GSM 06.10 encoded speech frames between the bit order at the 06.10 interface
+ * in the de facto standard libgsm implementation and the bit order at the
+ * 05.03 channel encoder interface, as realized in TI's Calypso DSP.
  */
 
 #include <sys/types.h>