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gsmhr_decoder_twts002_in(): set BFI=1 SID=1 for invalid SID When a received TW-TS-002 RTP payload indicates invalid SID, which of the 3 possible BFI/SID combinations should we pass to our internal ETSI-based speech decoder or TFO engine? Our original code passed BFI=0 SID=1, but upon further reflection, BFI=1 SID=1 is a better choice. In the corner case where received invalid SID is fed to a full decoder in homed state, setting BFI=1 allows that decoder to emit zeros on PCM and stay homed, instead of launching into full decoding.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 04 Dec 2025 21:01:46 +0000
parents 3654df24451f
children
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#ifndef  __MATHDP31
#define  __MATHDP31

#include "typedefs.h"

/*_________________________________________________________________________
 |                                                                         |
 |                            Function Prototypes                          |
 |_________________________________________________________________________|
*/

Longword L_mpy_ls(Longword L_var2, Shortword var1);
Longword L_mpy_ll(Longword L_var1, Longword L_var2);
short  isSwLimit(Shortword swIn);
short  isLwLimit(Longword L_In);

#endif