[Speex-dev] [patch] speex_preprocess_ctl

[Mikael Magnusson]

There is a problem in speex_preprocess_ctl. Both speech_prob_start and 
speech_prob_continue are set to 327.67 for all input values except 0 
which results in 0. This is in floating point mode.

I think the included patch fixes the problem.

Mikael
-------------- next part --------------
Index: libspeex/preprocess.c
===================================================================
--- libspeex/preprocess.c	(revision 13983)
+++ libspeex/preprocess.c	(arbetskopia)
@@ -1126,16 +1126,16 @@
       break;
 
    case SPEEX_PREPROCESS_SET_PROB_START:
-      *(spx_int32_t*)ptr = MIN32(Q15_ONE,MAX32(0, *(spx_int32_t*)ptr));
-      st->speech_prob_start = DIV32_16(MULT16_16(32767,*(spx_int32_t*)ptr), 100);
+      *(spx_int32_t*)ptr = MIN32(100,MAX32(0, *(spx_int32_t*)ptr));
+      st->speech_prob_start = DIV32_16(MULT16_16(Q15ONE,*(spx_int32_t*)ptr), 100);
       break;
    case SPEEX_PREPROCESS_GET_PROB_START:
       (*(spx_int32_t*)ptr) = MULT16_16_Q15(st->speech_prob_start, 100);
       break;
 
    case SPEEX_PREPROCESS_SET_PROB_CONTINUE:
-      *(spx_int32_t*)ptr = MIN32(Q15_ONE,MAX32(0, *(spx_int32_t*)ptr));
-      st->speech_prob_continue = DIV32_16(MULT16_16(32767,*(spx_int32_t*)ptr), 100);
+      *(spx_int32_t*)ptr = MIN32(100,MAX32(0, *(spx_int32_t*)ptr));
+      st->speech_prob_continue = DIV32_16(MULT16_16(Q15ONE,*(spx_int32_t*)ptr), 100);
       break;
    case SPEEX_PREPROCESS_GET_PROB_CONTINUE:
       (*(spx_int32_t*)ptr) = MULT16_16_Q15(st->speech_prob_continue, 100);