Exclude some unneeded LSP code. Add some #endif clarification comments here and there.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15497 a1c6a512-1295-4272-9138-f99709370657

apps/codecs/libspeex/cb_search.c

@@ -512,7 +512,7 @@ int   update_target
          target[j]=SUB16(target[j],PSHR16(r2[j],2));
    }
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER*/
 
 
 void split_cb_shape_sign_unquant(
@@ -600,7 +600,7 @@ int   update_target
    for (i=0;i<nsf;i++)
       target[i]=0;
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 
 void noise_codebook_unquant(

apps/codecs/libspeex/filters.c

@@ -157,7 +157,7 @@ void signal_div(const spx_word16_t *x, spx_word16_t *y, spx_word32_t scale, int
       }
    }
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 #else
 
@@ -342,7 +342,7 @@ void filter_mem16(const spx_word16_t *x, const spx_coef_t *num, const spx_coef_t
    }
 }
 #endif
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 #ifndef OVERRIDE_IIR_MEM16
 void iir_mem16(const spx_word16_t *x, const spx_coef_t *den, spx_word16_t *y, int N, int ord, spx_mem_t *mem, char *stack)
@@ -482,7 +482,7 @@ void qmf_decomp(const spx_word16_t *xx, const spx_word16_t *aa, spx_word16_t *y1
       y2[k] = EXTRACT16(SATURATE(PSHR32(y2k,15),32767));
    }
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 #ifndef OVERRIDE_QMF_SYNTH
 /* Re-synthesised a signal from the QMF low-band and high-band signals */

apps/codecs/libspeex/lsp.c

@@ -134,6 +134,8 @@ Heavily modified by Jean-Marc Valin (c) 2002-2006 (fixed-point,
 
 \*---------------------------------------------------------------------------*/
 
+#ifndef SPEEX_DISABLE_ENCODER
+
 #ifdef FIXED_POINT
 
 #ifndef OVERRIDE_CHEB_POLY_EVA
@@ -387,6 +389,8 @@ int lpc_to_lsp (spx_coef_t *a,int lpcrdr,spx_lsp_t *freq,int nb,spx_word16_t del
     return(roots);
 }
 
+#endif /* SPEEX_DISABLE_ENCODER */
+
 /*---------------------------------------------------------------------------*\
 
 	FUNCTION....: lsp_to_lpc()

apps/codecs/libspeex/ltp.c

@@ -660,7 +660,7 @@ spx_word32_t *cumul_gain
 #endif
    return pitch;
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 void pitch_unquant_3tap(
 spx_word16_t exc[],             /* Input excitation */
@@ -812,7 +812,7 @@ spx_word32_t *cumul_gain
       target[i]=EXTRACT16(SATURATE(SUB32(EXTEND32(target[i]),EXTEND32(res[i])),32700));
    return start;
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 /** Unquantize forced pitch delay and gain */
 void forced_pitch_unquant(

apps/codecs/libspeex/nb_celp.c

@@ -1024,7 +1024,7 @@ int nb_encode(void *state, void *vin, SpeexBits *bits)
 
    return 1;
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 static DecState global_decstate IBSS_ATTR;
 
@@ -1947,7 +1947,7 @@ int nb_encoder_ctl(void *state, int request, void *ptr)
    }
    return 0;
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 int nb_decoder_ctl(void *state, int request, void *ptr)
 {

apps/codecs/libspeex/quant_lsp.c

@@ -210,7 +210,7 @@ void lsp_quant_nb(spx_lsp_t *lsp, spx_lsp_t *qlsp, int order, SpeexBits *bits)
    for (i=0;i<order;i++)
       qlsp[i]=lsp[i]-qlsp[i];
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 void lsp_unquant_nb(spx_lsp_t *lsp, int order, SpeexBits *bits)
 {
@@ -282,7 +282,7 @@ void lsp_quant_lbr(spx_lsp_t *lsp, spx_lsp_t *qlsp, int order, SpeexBits *bits)
    for (i=0;i<order;i++)
       qlsp[i]=lsp[i]-qlsp[i];
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 void lsp_unquant_lbr(spx_lsp_t *lsp, int order, SpeexBits *bits)
 {
@@ -367,7 +367,7 @@ void lsp_quant_high(spx_lsp_t *lsp, spx_lsp_t *qlsp, int order, SpeexBits *bits)
    for (i=0;i<order;i++)
       qlsp[i]=lsp[i]-qlsp[i];
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 void lsp_unquant_high(spx_lsp_t *lsp, int order, SpeexBits *bits)
 {
@@ -434,7 +434,7 @@ void lsp_quant_48k(spx_lsp_t *lsp, spx_lsp_t *qlsp, int order, SpeexBits *bits)
    for (i=0;i<order;i++)
       qlsp[i]=lsp[i]-qlsp[i];
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 void lsp_unquant_48k(spx_lsp_t *lsp, int order, SpeexBits *bits)
 {

apps/codecs/libspeex/speex_header.c

@@ -126,7 +126,7 @@ char *speex_header_to_packet(SpeexHeader *header, int *size)
    *size = sizeof(SpeexHeader);
    return (char *)le_header;
 }
-#endif
+#endif /* SPEEX_DISABLE_ENCODER */
 
 static SpeexHeader global_le_header; /* Avoid malloc */
 SpeexHeader *speex_packet_to_header(char *packet, int size)