Speex encoder specially tailored to create voice UI snippets. Small fixups to libspeex to allow it to be built.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15640 a1c6a512-1295-4272-9138-f99709370657

apps/codecs/libspeex/Makefile

@@ -14,7 +14,7 @@ ifdef APPEXTRA
    INCLUDES += $(patsubst %,-I$(APPSDIR)/%,$(subst :, ,$(APPEXTRA)))
 endif
 
-SPEEXOPTS = -DHAVE_CONFIG_H -DSPEEX_DISABLE_ENCODER
+SPEEXOPTS = -DHAVE_CONFIG_H -DSPEEX_DISABLE_ENCODER -DROCKBOX
 
 # We're faster on ARM-targets with -O1 instead of -O2
 ifeq ($(CPU),arm)

apps/codecs/libspeex/SOURCES

@@ -24,12 +24,22 @@ speex.c
 speex_callbacks.c
 speex_header.c
 #ifndef ROCKBOX_VOICE_CODEC
+#ifndef ROCKBOX_VOICE_ENCODER
 oggframing.c
+#endif
 stereo.c
 #endif
+#ifdef ROCKBOX_VOICE_ENCODER
+lpc.c
+vbr.c
+vq.c
+window.c
+resample.c
+#else
 #ifdef CPU_COLDFIRE
 filters_cf.S
 ltp_cf.S
 #elif defined(CPU_ARM)
 filters_arm4.S
 #endif
+#endif

apps/codecs/libspeex/bits.c

@@ -106,7 +106,7 @@ void speex_bits_rewind(SpeexBits *bits)
    bits->overflow=0;
 }
 
-#if 0
+#ifndef SPEEX_VOICE_ENCODER
 void speex_bits_read_from(SpeexBits *bits, char *chars, int len)
 {
    int i;

apps/codecs/libspeex/config-speex.h

@@ -1,8 +1,16 @@
+#ifndef ROCKBOX_VOICE_ENCODER
 #include "../codec.h" 
 #include "autoconf.h"
+#else
+#define ICODE_ATTR
+#define IDATA_ATTR
+#define IBSS_ATTR
+#define ICONST_ATTR
+#endif
 /* config.h.  Generated from config.h.in by configure.  */
 /* config.h.in.  Generated from configure.ac by autoheader.  */
 
+#ifndef ROCKBOX_VOICE_ENCODER
 /* Make use of ARM4E assembly optimizations */
 #if defined(CPU_ARM)
 #define ARM4_ASM
@@ -15,6 +23,7 @@
 
 /* Make use of Blackfin assembly optimizations */
 /* #undef BFIN_ASM */
+#endif /* ROCKBOX_VOICE_ENCODER */
 
 /* Disable wideband codec */
 /* #undef DISABLE_WIDEBAND */
@@ -28,8 +37,13 @@
 /* Debug fixed-point implementation */
 /* #undef FIXED_DEBUG */
 
+#ifndef ROCKBOX_VOICE_ENCODER
 /* Compile target codec as fixed point */
 #define FIXED_POINT 
+#else
+/* Compile voice clip encoder as floating point */
+#define FLOATING_POINT 
+#endif
 
 /* Define to 1 if you have the <dlfcn.h> header file. */
 /* #undef HAVE_DLFCN_H */

apps/codecs/libspeex/rockbox.h

@@ -19,6 +19,9 @@
 #ifndef SPEEX_ROCKBOX_H
 #define SPEEX_ROCKBOX_H
 
+/* We don't want all this stuff if we're building encoder */
+#ifndef ROCKBOX_VOICE_ENCODER
+
 #include "../codec.h"
 #include "../lib/codeclib.h"
 
@@ -106,5 +109,7 @@ static inline void _speex_putc(int ch, void *file)
     //printf("%c", ch);
 }
 
+#endif /* ROCKBOX_VOICE_ENCODER */
+
 #endif
 

apps/codecs/libspeex/speex_header.c

@@ -47,7 +47,7 @@
 /** Convert little endian */
 static inline spx_int32_t le_int(spx_int32_t i)
 {
-#if 1
+#ifdef ROCKBOX 
 	return letoh32(i);
 #elif !defined(__LITTLE_ENDIAN__) && ( defined(WORDS_BIGENDIAN) || defined(__BIG_ENDIAN__) )
    spx_uint32_t ui, ret;