# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1773287601 0
# Node ID fd35fd05bc8bfbcf41e6ab5058b344e693219c5b
# Parent  6366902640fd1939b626466a20def8fb1c6a9441
libgsmhr1/sp_frm.[ch]: constify some function arguments

Speech encoder main function calls filt4_2nd(), which in turn calls
iir_d().  A pointer comes from a "ROM" table, hence const.

diff -r 6366902640fd -r fd35fd05bc8b libgsmhr1/sp_frm.c
--- a/libgsmhr1/sp_frm.c	Thu Mar 12 02:52:36 2026 +0000
+++ b/libgsmhr1/sp_frm.c	Thu Mar 12 03:53:21 2026 +0000
@@ -2104,7 +2104,7 @@
  *
  *************************************************************************/
 
-void   filt4_2nd(Shortword pswCoeff[], Shortword pswIn[],
+void   filt4_2nd(const Shortword pswCoeff[], Shortword pswIn[],
                         Shortword pswXstate[], Shortword pswYstate[],
                         int npts, int shifts)
 {
@@ -3899,9 +3899,9 @@
  *
  *************************************************************************/
 
-void   iir_d(Shortword pswCoeff[], Shortword pswIn[], Shortword pswXstate[],
-                    Shortword pswYstate[], int npts, int shifts,
-                    Shortword swPreFirDownSh, Shortword swFinalUpShift)
+void iir_d(const Shortword pswCoeff[], Shortword pswIn[], Shortword pswXstate[],
+           Shortword pswYstate[], int npts, int shifts,
+           Shortword swPreFirDownSh, Shortword swFinalUpShift)
 {
 
 /*_________________________________________________________________________
diff -r 6366902640fd -r fd35fd05bc8b libgsmhr1/sp_frm.h
--- a/libgsmhr1/sp_frm.h	Thu Mar 12 02:52:36 2026 +0000
+++ b/libgsmhr1/sp_frm.h	Thu Mar 12 03:53:21 2026 +0000
@@ -59,7 +59,7 @@
 			Shortword pswWNumSpace[], Shortword pswWDenomSpace[],
 			Shortword pswWSpeechBuffBase[]);
 
-void   iir_d(Shortword pswCoeff[], Shortword pswIn[],
+void   iir_d(const Shortword pswCoeff[], Shortword pswIn[],
                     Shortword pswXstate[],
                     Shortword pswYstate[],
                     int npts, int shifts,
@@ -67,7 +67,7 @@
                     Shortword swFinalUpShift);
 
 
-  void   filt4_2nd(Shortword pswCoeff[],
+  void   filt4_2nd(const Shortword pswCoeff[],
                           Shortword pswIn[],
                           Shortword pswXstate[],
                           Shortword pswYstate[],