New DISABLE_VBR and DISABLE_FLOAT_API switches can together remove every single

float operation out of libspeex.


git-svn-id: http://svn.xiph.org/trunk/speex@14181 0101bb08-14d6-0310-b084-bc0e0c8e3800

11 files changed, 100 insertions, 29 deletions

diff --git a/libspeex/modes.h b/libspeex/modes.h
index d0ff842..26e2d86 100644
--- a/libspeex/modes.h
+++ b/libspeex/modes.h
@@ -146,7 +146,9 @@ typedef struct SpeexSBMode {
    int     defaultSubmode; /**< Default sub-mode to use when encoding */
    int     low_quality_map[11]; /**< Mode corresponding to each quality setting */
    int     quality_map[11]; /**< Mode corresponding to each quality setting */
+#ifndef DISABLE_VBR
    const float (*vbr_thresh)[11];
+#endif
    int     nb_modes;
 } SpeexSBMode;
 
diff --git a/libspeex/modes_wb.c b/libspeex/modes_wb.c
index 64c9373..4b575b2 100644
--- a/libspeex/modes_wb.c
+++ b/libspeex/modes_wb.c
@@ -188,13 +188,15 @@ static const SpeexSBMode sb_wb_mode = {
    0.9, 0.6, /* gamma1, gamma2 */
 #endif
    QCONST16(.0002,15), /*lpc_floor*/
-            QCONST16(0.9f,15),
-                     {NULL, &wb_submode1, &wb_submode2, &wb_submode3, &wb_submode4, NULL, NULL, NULL},
-                     3,
-                     {1, 8, 2, 3, 4, 5, 5, 6, 6, 7, 7},
-                     {1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 4},
-                     vbr_hb_thresh,
-                     5
+   QCONST16(0.9f,15),
+   {NULL, &wb_submode1, &wb_submode2, &wb_submode3, &wb_submode4, NULL, NULL, NULL},
+   3,
+   {1, 8, 2, 3, 4, 5, 5, 6, 6, 7, 7},
+   {1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 4},
+#ifndef DISABLE_VBR
+   vbr_hb_thresh,
+#endif
+   5
 };
 
 
@@ -232,13 +234,15 @@ static const SpeexSBMode sb_uwb_mode = {
    0.9, 0.6, /* gamma1, gamma2 */
 #endif
    QCONST16(.0002,15), /*lpc_floor*/
-            QCONST16(0.7f,15),
-                     {NULL, &wb_submode1, NULL, NULL, NULL, NULL, NULL, NULL},
-                     1,
-                     {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
-                     {0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
-                     vbr_uhb_thresh,
-                     2
+   QCONST16(0.7f,15),
+   {NULL, &wb_submode1, NULL, NULL, NULL, NULL, NULL, NULL},
+   1,
+   {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
+   {0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
+#ifndef DISABLE_VBR
+   vbr_uhb_thresh,
+#endif
+   2
 };
 
 int wb_mode_query(const void *mode, int request, void *ptr)
diff --git a/libspeex/nb_celp.c b/libspeex/nb_celp.c
index d637637..b1d8592 100644
--- a/libspeex/nb_celp.c
+++ b/libspeex/nb_celp.c
@@ -185,6 +185,7 @@ void *nb_encoder_init(const SpeexMode *m)
    
    st->pitch = (int*)speex_alloc((st->nbSubframes)*sizeof(int));
 
+#ifndef DISABLE_VBR
    st->vbr = (VBRState*)speex_alloc(sizeof(VBRState));
    vbr_init(st->vbr);
    st->vbr_quality = 8;
@@ -192,13 +193,16 @@ void *nb_encoder_init(const SpeexMode *m)
    st->vbr_max = 0;
    st->vad_enabled = 0;
    st->dtx_enabled = 0;
+   st->dtx_count=0;
    st->abr_enabled = 0;
    st->abr_drift = 0;
+   st->abr_drift2 = 0;
+   st->abr_drift = 0;
+#endif /* #ifndef DISABLE_VBR */
 
    st->plc_tuning = 2;
    st->complexity=2;
    st->sampling_rate=8000;
-   st->dtx_count=0;
    st->isWideband = 0;
    st->highpass_enabled = 1;
    
@@ -230,8 +234,10 @@ void nb_encoder_destroy(void *state)
    speex_free (st->pi_gain);
    speex_free (st->pitch);
 
+#ifndef DISABLE_VBR
    vbr_destroy(st->vbr);
    speex_free (st->vbr);
+#endif /* #ifndef DISABLE_VBR */
 
 #ifdef VORBIS_PSYCHO
    vorbis_psy_destroy(st->psy);
@@ -344,8 +350,11 @@ int nb_encode(void *state, void *vin, SpeexBits *bits)
 
 
       /*Open-loop pitch*/
-      if (!st->submodes[st->submodeID] || (st->complexity>2 && SUBMODE(have_subframe_gain)<3) || st->vbr_enabled || st->vad_enabled || SUBMODE(forced_pitch_gain) ||
-          SUBMODE(lbr_pitch) != -1)
+      if (!st->submodes[st->submodeID] || (st->complexity>2 && SUBMODE(have_subframe_gain)<3) || SUBMODE(forced_pitch_gain) || SUBMODE(lbr_pitch) != -1 
+#ifndef DISABLE_VBR
+           || st->vbr_enabled || st->vad_enabled
+#endif
+                  )
       {
          int nol_pitch[6];
          spx_word16_t nol_pitch_coef[6];
@@ -418,6 +427,7 @@ int nb_encode(void *state, void *vin, SpeexBits *bits)
 #endif
 
    /*VBR stuff*/
+#ifndef DISABLE_VBR
    if (st->vbr && (st->vbr_enabled||st->vad_enabled))
    {
       float lsp_dist=0;
@@ -529,6 +539,7 @@ int nb_encode(void *state, void *vin, SpeexBits *bits)
    } else {
       st->relative_quality = -1;
    }
+#endif /* #ifndef DISABLE_VBR */
 
    if (st->encode_submode)
    {
@@ -907,9 +918,11 @@ int nb_encode(void *state, void *vin, SpeexBits *bits)
 
    if (st->submodeID==1)
    {
+#ifndef DISABLE_VBR
       if (st->dtx_count)
          speex_bits_pack(bits, 15, 4);
       else
+#endif
          speex_bits_pack(bits, 0, 4);
    }
 
@@ -1604,7 +1617,8 @@ int nb_encoder_ctl(void *state, int request, void *ptr)
    case SPEEX_GET_MODE:
       (*(spx_int32_t*)ptr) = st->submodeID;
       break;
-   case SPEEX_SET_VBR:
+#ifndef DISABLE_VBR
+      case SPEEX_SET_VBR:
       st->vbr_enabled = (*(spx_int32_t*)ptr);
       break;
    case SPEEX_GET_VBR:
@@ -1652,12 +1666,15 @@ int nb_encoder_ctl(void *state, int request, void *ptr)
    case SPEEX_GET_ABR:
       (*(spx_int32_t*)ptr) = st->abr_enabled;
       break;
+#endif /* #ifndef DISABLE_VBR */
+#if !defined(DISABLE_VBR) && !defined(DISABLE_FLOAT_API)
    case SPEEX_SET_VBR_QUALITY:
       st->vbr_quality = (*(float*)ptr);
       break;
    case SPEEX_GET_VBR_QUALITY:
       (*(float*)ptr) = st->vbr_quality;
       break;
+#endif /* !defined(DISABLE_VBR) && !defined(DISABLE_FLOAT_API) */
    case SPEEX_SET_QUALITY:
       {
          int quality = (*(spx_int32_t*)ptr);
@@ -1735,12 +1752,14 @@ int nb_encoder_ctl(void *state, int request, void *ptr)
    case SPEEX_GET_PLC_TUNING:
       (*(spx_int32_t*)ptr)=(st->plc_tuning);
       break;
+#ifndef DISABLE_VBR
    case SPEEX_SET_VBR_MAX_BITRATE:
       st->vbr_max = (*(spx_int32_t*)ptr);
       break;
    case SPEEX_GET_VBR_MAX_BITRATE:
       (*(spx_int32_t*)ptr) = st->vbr_max;
       break;
+#endif /* #ifndef DISABLE_VBR */
    case SPEEX_SET_HIGHPASS:
       st->highpass_enabled = (*(spx_int32_t*)ptr);
       break;
@@ -1764,9 +1783,11 @@ int nb_encoder_ctl(void *state, int request, void *ptr)
             ((spx_word16_t*)ptr)[i] = compute_rms16(st->exc+i*st->subframeSize, st->subframeSize);
       }
       break;
+#ifndef DISABLE_VBR
    case SPEEX_GET_RELATIVE_QUALITY:
       (*(float*)ptr)=st->relative_quality;
       break;
+#endif /* #ifndef DISABLE_VBR */
    case SPEEX_SET_INNOVATION_SAVE:
       st->innov_rms_save = (spx_word16_t*)ptr;
       break;
@@ -1858,6 +1879,8 @@ int nb_decoder_ctl(void *state, int request, void *ptr)
    case SPEEX_GET_HIGHPASS:
       (*(spx_int32_t*)ptr) = st->highpass_enabled;
       break;
+      /* FIXME: Convert to fixed-point and re-enable even when float API is disabled */
+#ifndef DISABLE_FLOAT_API
    case SPEEX_GET_ACTIVITY:
    {
       float ret;
@@ -1871,6 +1894,7 @@ int nb_decoder_ctl(void *state, int request, void *ptr)
       (*(spx_int32_t*)ptr) = (int)(100*ret);
    }
    break;
+#endif
    case SPEEX_GET_PI_GAIN:
       {
          int i;
diff --git a/libspeex/nb_celp.h b/libspeex/nb_celp.h
index eac1261..14c776f 100644
--- a/libspeex/nb_celp.h
+++ b/libspeex/nb_celp.h
@@ -92,7 +92,8 @@ typedef struct EncState {
    spx_mem_t mem_hp[2];          /**< High-pass filter memory */
    spx_word32_t *pi_gain;        /**< Gain of LPC filter at theta=pi (fe/2) */
    spx_word16_t *innov_rms_save; /**< If non-NULL, innovation RMS is copied here */
-         
+
+#ifndef DISABLE_VBR
    VBRState *vbr;                /**< State of the VBR data */
    float  vbr_quality;           /**< Quality setting for VBR encoding */
    float  relative_quality;      /**< Relative quality that will be needed by VBR */
@@ -105,6 +106,8 @@ typedef struct EncState {
    float  abr_drift;
    float  abr_drift2;
    float  abr_count;
+#endif /* #ifndef DISABLE_VBR */
+   
    int    complexity;            /**< Complexity setting (0-10 from least complex to most complex) */
    spx_int32_t sampling_rate;
    int    plc_tuning;
diff --git a/libspeex/sb_celp.c b/libspeex/sb_celp.c
index 0f4ea24..619512c 100644
--- a/libspeex/sb_celp.c
+++ b/libspeex/sb_celp.c
@@ -253,6 +253,7 @@ void *sb_encoder_init(const SpeexMode *m)
    for (i=0;i<st->lpcSize;i++)
       st->old_lsp[i]= DIV32(MULT16_16(QCONST16(3.1415927f, LSP_SHIFT), i+1), st->lpcSize+1);
 
+#ifndef DISABLE_VBR
    st->vbr_quality = 8;
    st->vbr_enabled = 0;
    st->vbr_max = 0;
@@ -260,6 +261,7 @@ void *sb_encoder_init(const SpeexMode *m)
    st->vad_enabled = 0;
    st->abr_enabled = 0;
    st->relative_quality=0;
+#endif /* #ifndef DISABLE_VBR */
 
    st->complexity=2;
    speex_encoder_ctl(st->st_low, SPEEX_GET_SAMPLING_RATE, &st->sampling_rate);
@@ -336,6 +338,7 @@ int sb_encode(void *state, void *vin, SpeexBits *bits)
    /* Compute the two sub-bands by filtering with QMF h0*/
    qmf_decomp(in, h0, low, high, st->full_frame_size, QMF_ORDER, st->h0_mem, stack);
    
+#ifndef DISABLE_VBR
    if (st->vbr_enabled || st->vad_enabled)
    {
       /* Need to compute things here before the signal is trashed by the encoder */
@@ -343,6 +346,8 @@ int sb_encode(void *state, void *vin, SpeexBits *bits)
       e_low = compute_rms16(low, st->frame_size);
       e_high = compute_rms16(high, st->frame_size);
    }
+#endif /* #ifndef DISABLE_VBR */
+
    ALLOC(low_innov_rms, st->nbSubframes, spx_word16_t);
    speex_encoder_ctl(st->st_low, SPEEX_SET_INNOVATION_SAVE, low_innov_rms);
    /* Encode the narrowband part*/
@@ -418,6 +423,7 @@ int sb_encode(void *state, void *vin, SpeexBits *bits)
       }
    }
 
+#ifndef DISABLE_VBR
    /* VBR code */
    if ((st->vbr_enabled || st->vad_enabled) && !dtx)
    {
@@ -494,6 +500,7 @@ int sb_encode(void *state, void *vin, SpeexBits *bits)
       }
       /*fprintf (stderr, "%f %f\n", ratio, low_qual);*/
    }
+#endif /* #ifndef DISABLE_VBR */
 
    if (st->encode_submode)
    {
@@ -1127,6 +1134,7 @@ int sb_encoder_ctl(void *state, int request, void *ptr)
    case SPEEX_SET_MODE:
       speex_encoder_ctl(st, SPEEX_SET_QUALITY, ptr);
       break;
+#ifndef DISABLE_VBR
    case SPEEX_SET_VBR:
       st->vbr_enabled = (*(spx_int32_t*)ptr);
       speex_encoder_ctl(st->st_low, SPEEX_SET_VBR, ptr);
@@ -1141,6 +1149,8 @@ int sb_encoder_ctl(void *state, int request, void *ptr)
    case SPEEX_GET_VAD:
       (*(spx_int32_t*)ptr) = st->vad_enabled;
       break;
+#endif /* #ifndef DISABLE_VBR */
+#if !defined(DISABLE_VBR) && !defined(DISABLE_FLOAT_API)
    case SPEEX_SET_VBR_QUALITY:
       {
          spx_int32_t q;
@@ -1158,6 +1168,8 @@ int sb_encoder_ctl(void *state, int request, void *ptr)
    case SPEEX_GET_VBR_QUALITY:
       (*(float*)ptr) = st->vbr_quality;
       break;
+#endif /* #if !defined(DISABLE_VBR) && !defined(DISABLE_FLOAT_API) */
+#ifndef DISABLE_VBR
    case SPEEX_SET_ABR:
       st->abr_enabled = (*(spx_int32_t*)ptr);
       st->vbr_enabled = st->abr_enabled!=0;
@@ -1188,6 +1200,8 @@ int sb_encoder_ctl(void *state, int request, void *ptr)
    case SPEEX_GET_ABR:
       (*(spx_int32_t*)ptr) = st->abr_enabled;
       break;
+#endif /* #ifndef DISABLE_VBR */
+
    case SPEEX_SET_QUALITY:
       {
          spx_int32_t nb_qual;
@@ -1274,6 +1288,7 @@ int sb_encoder_ctl(void *state, int request, void *ptr)
    case SPEEX_GET_PLC_TUNING:
       speex_encoder_ctl(st->st_low, SPEEX_GET_PLC_TUNING, ptr);
       break;
+#ifndef DISABLE_VBR
    case SPEEX_SET_VBR_MAX_BITRATE:
       {
          st->vbr_max = (*(spx_int32_t*)ptr);
@@ -1305,6 +1320,7 @@ int sb_encoder_ctl(void *state, int request, void *ptr)
    case SPEEX_GET_VBR_MAX_BITRATE:
       (*(spx_int32_t*)ptr) = st->vbr_max;
       break;
+#endif /* #ifndef DISABLE_VBR */
    case SPEEX_SET_HIGHPASS:
       speex_encoder_ctl(st->st_low, SPEEX_SET_HIGHPASS, ptr);
       break;
@@ -1329,9 +1345,11 @@ int sb_encoder_ctl(void *state, int request, void *ptr)
             ((spx_word16_t*)ptr)[i] = st->exc_rms[i];
       }
       break;
+#ifndef DISABLE_VBR
    case SPEEX_GET_RELATIVE_QUALITY:
       (*(float*)ptr)=st->relative_quality;
       break;
+#endif /* #ifndef DISABLE_VBR */
    case SPEEX_SET_INNOVATION_SAVE:
       st->innov_rms_save = (spx_word16_t*)ptr;
       break;
diff --git a/libspeex/sb_celp.h b/libspeex/sb_celp.h
index c2e28bf..e8c3761 100644
--- a/libspeex/sb_celp.h
+++ b/libspeex/sb_celp.h
@@ -72,6 +72,7 @@ typedef struct SBEncState {
    spx_word16_t *exc_rms;
    spx_word16_t *innov_rms_save;         /**< If non-NULL, innovation is copied here */
 
+#ifndef DISABLE_VBR
    float  vbr_quality;            /**< Quality setting for VBR encoding */
    int    vbr_enabled;            /**< 1 for enabling VBR, 0 otherwise */
    spx_int32_t vbr_max;           /**< Max bit-rate allowed in VBR mode (total) */
@@ -82,7 +83,8 @@ typedef struct SBEncState {
    float  abr_count;
    int    vad_enabled;            /**< 1 for enabling VAD, 0 otherwise */
    float  relative_quality;
-
+#endif /* #ifndef DISABLE_VBR */
+   
    int    encode_submode;
    const SpeexSubmode * const *submodes;
    int    submodeID;
diff --git a/libspeex/speex.c b/libspeex/speex.c
index b6bfbd1..78e1a7a 100644
--- a/libspeex/speex.c
+++ b/libspeex/speex.c
@@ -84,6 +84,7 @@ int speex_decode_native(void *state, SpeexBits *bits, spx_word16_t *out)
 
 #ifdef FIXED_POINT
 
+#ifndef DISABLE_FLOAT_API
 int speex_encode(void *state, float *in, SpeexBits *bits)
 {
    int i;
@@ -101,6 +102,7 @@ int speex_encode(void *state, float *in, SpeexBits *bits)
    }
    return (*((SpeexMode**)state))->enc(state, short_in, bits);
 }
+#endif /* #ifndef DISABLE_FLOAT_API */
 
 int speex_encode_int(void *state, spx_int16_t *in, SpeexBits *bits)
 {
@@ -109,6 +111,7 @@ int speex_encode_int(void *state, spx_int16_t *in, SpeexBits *bits)
    return (mode)->enc(state, in, bits);
 }
 
+#ifndef DISABLE_FLOAT_API
 int speex_decode(void *state, SpeexBits *bits, float *out)
 {
    int i, ret;
@@ -120,6 +123,7 @@ int speex_decode(void *state, SpeexBits *bits, float *out)
       out[i] = short_out[i];
    return ret;
 }
+#endif /* #ifndef DISABLE_FLOAT_API */
 
 int speex_decode_int(void *state, SpeexBits *bits, spx_int16_t *out)
 {
diff --git a/libspeex/speex_callbacks.c b/libspeex/speex_callbacks.c
index b884775..d1158b2 100644
--- a/libspeex/speex_callbacks.c
+++ b/libspeex/speex_callbacks.c
@@ -96,6 +96,7 @@ int speex_std_high_mode_request_handler(SpeexBits *bits, void *state, void *data
    return 0;
 }
 
+#ifndef DISABLE_VBR
 int speex_std_vbr_request_handler(SpeexBits *bits, void *state, void *data)
 {
    spx_int32_t vbr;
@@ -103,6 +104,7 @@ int speex_std_vbr_request_handler(SpeexBits *bits, void *state, void *data)
    speex_encoder_ctl(data, SPEEX_SET_VBR, &vbr);
    return 0;
 }
+#endif /* #ifndef DISABLE_VBR */
 
 int speex_std_enh_request_handler(SpeexBits *bits, void *state, void *data)
 {
@@ -112,6 +114,7 @@ int speex_std_enh_request_handler(SpeexBits *bits, void *state, void *data)
    return 0;
 }
 
+#ifndef DISABLE_VBR
 int speex_std_vbr_quality_request_handler(SpeexBits *bits, void *state, void *data)
 {
    float qual;
@@ -119,7 +122,7 @@ int speex_std_vbr_quality_request_handler(SpeexBits *bits, void *state, void *da
    speex_encoder_ctl(data, SPEEX_SET_VBR_QUALITY, &qual);
    return 0;
 }
-
+#endif /* #ifndef DISABLE_VBR */
 
 int speex_std_char_handler(SpeexBits *bits, void *state, void *data)
 {
diff --git a/libspeex/stereo.c b/libspeex/stereo.c
index a8bdfdd..bc6e1ba 100644
--- a/libspeex/stereo.c
+++ b/libspeex/stereo.c
@@ -104,6 +104,7 @@ void speex_stereo_state_destroy(SpeexStereoState *stereo)
    speex_free(stereo);
 }
 
+#ifndef DISABLE_FLOAT_API
 void speex_encode_stereo(float *data, int frame_size, SpeexBits *bits)
 {
    int i, tmp;
@@ -140,6 +141,7 @@ void speex_encode_stereo(float *data, int frame_size, SpeexBits *bits)
    tmp=scal_quant(e_ratio*Q15_ONE, e_ratio_quant_bounds, 4);
    speex_bits_pack(bits, tmp, 2);
 }
+#endif /* #ifndef DISABLE_FLOAT_API */
 
 void speex_encode_stereo_int(spx_int16_t *data, int frame_size, SpeexBits *bits)
 {
@@ -215,6 +217,7 @@ void speex_encode_stereo_int(spx_int16_t *data, int frame_size, SpeexBits *bits)
    speex_bits_pack(bits, tmp, 2);
 }
 
+#ifndef DISABLE_FLOAT_API
 void speex_decode_stereo(float *data, int frame_size, SpeexStereoState *_stereo)
 {
    int i;
@@ -240,6 +243,7 @@ void speex_decode_stereo(float *data, int frame_size, SpeexStereoState *_stereo)
       data[2*i+1] = (float)MULT16_16_P14(stereo->smooth_right, tmp);
    }
 }
+#endif /* #ifndef DISABLE_FLOAT_API */
 
 void speex_decode_stereo_int(spx_int16_t *data, int frame_size, SpeexStereoState *_stereo)
 {
diff --git a/libspeex/testenc.c b/libspeex/testenc.c
index 3dbfa96..44c132f 100644
--- a/libspeex/testenc.c
+++ b/libspeex/testenc.c
@@ -19,7 +19,6 @@ int main(int argc, char **argv)
    FILE *fin, *fout, *fbits=NULL;
    short in_short[FRAME_SIZE];
    short out_short[FRAME_SIZE];
-   float sigpow,errpow,snr, seg_snr=0;
    int snr_frames = 0;
    char cbits[200];
    int nbBits;
@@ -32,9 +31,6 @@ int main(int argc, char **argv)
    spx_int32_t skip_group_delay;
    SpeexCallback callback;
 
-   sigpow = 0;
-   errpow = 0;
-
    st = speex_encoder_init(speex_lib_get_mode(SPEEX_MODEID_NB));
    dec = speex_decoder_init(speex_lib_get_mode(SPEEX_MODEID_NB));
 
@@ -109,6 +105,12 @@ int main(int argc, char **argv)
    speex_decoder_destroy(dec);
    speex_bits_destroy(&bits);
 
+#ifndef DISABLE_FLOAT_API
+   {
+   float sigpow,errpow,snr, seg_snr=0;
+   sigpow = 0;
+   errpow = 0;
+
    /* This code just computes SNR, so you don't need it either */
    rewind(fin);
    rewind(fout);
@@ -127,9 +129,6 @@ int main(int argc, char **argv)
 	errpow += e;
 	snr_frames++;
    }
-   fclose(fin);
-   fclose(fout);
-
    snr = 10 * log10( sigpow / errpow );
    seg_snr /= snr_frames;
    fprintf(stderr,"SNR = %f\nsegmental SNR = %f\n",snr, seg_snr);
@@ -137,6 +136,11 @@ int main(int argc, char **argv)
 #ifdef FIXED_DEBUG
    printf ("Total: %f MIPS\n", (float)(1e-6*50*spx_mips/snr_frames));
 #endif
-   
+   }
+#endif
+
+   fclose(fin);
+   fclose(fout);
+
    return 0;
 }
diff --git a/libspeex/vbr.c b/libspeex/vbr.c
index fa74620..5b7dd9b 100644
--- a/libspeex/vbr.c
+++ b/libspeex/vbr.c
@@ -45,6 +45,7 @@
 #define MIN_ENERGY 6000
 #define NOISE_POW .3
 
+#ifndef DISABLE_VBR
 
 const float vbr_nb_thresh[9][11]={
    {-1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f}, /*   CNG   */
@@ -270,3 +271,5 @@ float vbr_analysis(VBRState *vbr, spx_word16_t *sig, int len, int pitch, float p
 void vbr_destroy(VBRState *vbr)
 {
 }
+
+#endif /* #ifndef DISABLE_VBR */