Remove unneeded math wrappers. Clear state structs in decoder init. Start initial work at stripping away parts of Speex in preparation for its use as a statically linked voice UI codec.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15612 a1c6a512-1295-4272-9138-f99709370657

apps/codecs/libspeex/Makefile

@@ -23,6 +23,11 @@ else
    SPEEXOPTS += -O2
 endif
 
+# We build Speex separately for use as a voice codec
+ifdef ROCKBOX_VOICE_CODEC
+EXTRA_DEFINES += -DROCKBOX_VOICE_CODEC
+endif
+
 CFLAGS = $(INCLUDES) $(GCCOPTS) $(TARGET_INC) $(SPEEXOPTS) $(TARGET)	\
 $(EXTRA_DEFINES) -DMEM=${MEMORYSIZE} ${PROFILE_OPTS} -Wno-unused-parameter
 

apps/codecs/libspeex/SOURCES

@@ -18,14 +18,15 @@ ltp.c
 modes.c
 modes_wb.c
 nb_celp.c
-oggframing.c
 quant_lsp.c
-rockbox.c
 sb_celp.c
 speex.c
 speex_callbacks.c
 speex_header.c
+#ifndef ROCKBOX_VOICE_CODEC
+oggframing.c
 stereo.c
+#endif
 #ifdef CPU_COLDFIRE
 filters_cf.S
 ltp_cf.S

apps/codecs/libspeex/nb_celp.c

@@ -944,6 +944,7 @@ void *nb_decoder_init(const SpeexMode *m)
    if (!st)
       return NULL;
 */
+   memset(st, 0, sizeof(*st));
 #if defined(VAR_ARRAYS) || defined (USE_ALLOCA)
    st->stack = NULL;
 #else

apps/codecs/libspeex/rockbox.c

@@ -1,77 +0,0 @@
-/**************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- *
- * Copyright (C) 2007 Dan Everton
- *
- * All files in this archive are subject to the GNU General Public License.
- * See the file COPYING in the source tree root for full license agreement.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ***************************************************************************/
-
-#include "../codec.h"
-#include "../lib/codeclib.h"
-
-#if defined(DEBUG) || defined(SIMULATOR)
-#undef DEBUGF
-#define DEBUGF ci->debugf
-#else
-#define DEBUGF(...)
-#endif
-
-#ifdef ROCKBOX_HAS_LOGF
-#undef LOGF
-#define LOGF ci->logf
-#else
-#define LOGF(...)
-#endif
-
-extern struct codec_api* ci;
-
-float floor(float x) {
-    return ((float)(((int)x)));
-} 
-
-//Placeholders (not fixed point, only used when encoding):
-float pow(float a, float b) {
-    DEBUGF("pow(%f, %f)\n", a, b);
-    return 0;
-}
-
-float log(float l) {
-    DEBUGF("log(%f)\n", l);
-    return 0;
-}
-
-float fabs(float a) {
-    DEBUGF("fabs(%f)\n", a);
-    return 0;
-}
-
-float sin(float a) {
-    DEBUGF("sin(%f)\n", a);
-    return 0;
-}
-
-float cos(float a) {
-    DEBUGF("cos(%f)\n", a);
-    return 0;
-}
-
-float sqrt(float a) {
-    DEBUGF("sqrt(%f)\n", a);
-    return 0;
-}
-
-float exp(float a) {
-    DEBUGF("exp(%f)\n", a);
-    return 0;
-}
-

apps/codecs/libspeex/sb_celp.c

@@ -755,7 +755,10 @@ int sb_encode(void *state, void *vin, SpeexBits *bits)
 
 
 static SBDecState global_decstate_wb IBSS_ATTR;
+/* Do not include this for voice codec, files will never be UWB */
+#ifndef SPEEX_ROCKBOX_VOICE_CODEC
 static SBDecState global_decstate_uwb IBSS_ATTR;
+#endif
 
 void *sb_decoder_init(const SpeexMode *m)
 {
@@ -767,10 +770,13 @@ void *sb_decoder_init(const SpeexMode *m)
    if (!st)
       return NULL;
 */
+#ifndef ROCKBOX_VOICE_CODEC
    if (m->modeID == SPEEX_MODEID_UWB)
       st = &global_decstate_uwb; 
    else
+#endif
       st = &global_decstate_wb;
+   memset(st, 0, sizeof(*st));
    st->mode = m;
    mode=(const SpeexSBMode*)m->mode;
    st->encode_submode = 1;

apps/codecs/libspeex/sb_celp.h

@@ -110,7 +110,12 @@ typedef struct SBDecState {
    char  *stack;
    spx_word16_t g0_mem[64], g1_mem[64];
 
+/* Voice codec files will be WB mode, which has sub frame size of 40 */
+#ifndef SPEEX_ROCKBOX_VOICE_CODEC
    spx_word16_t excBuf[80];
+#else
+   spx_word16_t excBuf[40];
+#endif
    spx_lsp_t old_qlsp[8];
    spx_coef_t interp_qlpc[8];