Index: speex/libspeex/speex.c |
=================================================================== |
--- speex/libspeex/speex.c (revision 0) |
+++ speex/libspeex/speex.c (revision 0) |
@@ -0,0 +1,250 @@ |
+/* Copyright (C) 2002 Jean-Marc Valin |
+ File: speex.c |
+ |
+ Basic Speex functions |
+ |
+ Redistribution and use in source and binary forms, with or without |
+ modification, are permitted provided that the following conditions |
+ are met: |
+ |
+ - Redistributions of source code must retain the above copyright |
+ notice, this list of conditions and the following disclaimer. |
+ |
+ - Redistributions in binary form must reproduce the above copyright |
+ notice, this list of conditions and the following disclaimer in the |
+ documentation and/or other materials provided with the distribution. |
+ |
+ - Neither the name of the Xiph.org Foundation nor the names of its |
+ contributors may be used to endorse or promote products derived from |
+ this software without specific prior written permission. |
+ |
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
+ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR |
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
+ |
+*/ |
+ |
+#ifdef HAVE_CONFIG_H |
+#include "config.h" |
+#endif |
+ |
+#include "modes.h" |
+#include <math.h> |
+#include "os_support.h" |
+ |
+#ifndef NULL |
+#define NULL 0 |
+#endif |
+ |
+#define MAX_IN_SAMPLES 640 |
+ |
+ |
+ |
+EXPORT void *speex_encoder_init(const SpeexMode *mode) |
+{ |
+ return mode->enc_init(mode); |
+} |
+ |
+EXPORT void *speex_decoder_init(const SpeexMode *mode) |
+{ |
+ return mode->dec_init(mode); |
+} |
+ |
+EXPORT void speex_encoder_destroy(void *state) |
+{ |
+ (*((SpeexMode**)state))->enc_destroy(state); |
+} |
+ |
+EXPORT void speex_decoder_destroy(void *state) |
+{ |
+ (*((SpeexMode**)state))->dec_destroy(state); |
+} |
+ |
+ |
+ |
+int speex_encode_native(void *state, spx_word16_t *in, SpeexBits *bits) |
+{ |
+ return (*((SpeexMode**)state))->enc(state, in, bits); |
+} |
+ |
+int speex_decode_native(void *state, SpeexBits *bits, spx_word16_t *out) |
+{ |
+ return (*((SpeexMode**)state))->dec(state, bits, out); |
+} |
+ |
+ |
+ |
+#ifdef FIXED_POINT |
+ |
+#ifndef DISABLE_FLOAT_API |
+EXPORT int speex_encode(void *state, float *in, SpeexBits *bits) |
+{ |
+ int i; |
+ spx_int32_t N; |
+ spx_int16_t short_in[MAX_IN_SAMPLES]; |
+ speex_encoder_ctl(state, SPEEX_GET_FRAME_SIZE, &N); |
+ for (i=0;i<N;i++) |
+ { |
+ if (in[i]>32767.f) |
+ short_in[i] = 32767; |
+ else if (in[i]<-32768.f) |
+ short_in[i] = -32768; |
+ else |
+ short_in[i] = (spx_int16_t)floor(.5+in[i]); |
+ } |
+ return (*((SpeexMode**)state))->enc(state, short_in, bits); |
+} |
+#endif /* #ifndef DISABLE_FLOAT_API */ |
+ |
+EXPORT int speex_encode_int(void *state, spx_int16_t *in, SpeexBits *bits) |
+{ |
+ SpeexMode *mode; |
+ mode = *(SpeexMode**)state; |
+ return (mode)->enc(state, in, bits); |
+} |
+ |
+#ifndef DISABLE_FLOAT_API |
+EXPORT int speex_decode(void *state, SpeexBits *bits, float *out) |
+{ |
+ int i, ret; |
+ spx_int32_t N; |
+ spx_int16_t short_out[MAX_IN_SAMPLES]; |
+ speex_decoder_ctl(state, SPEEX_GET_FRAME_SIZE, &N); |
+ ret = (*((SpeexMode**)state))->dec(state, bits, short_out); |
+ for (i=0;i<N;i++) |
+ out[i] = short_out[i]; |
+ return ret; |
+} |
+#endif /* #ifndef DISABLE_FLOAT_API */ |
+ |
+EXPORT int speex_decode_int(void *state, SpeexBits *bits, spx_int16_t *out) |
+{ |
+ SpeexMode *mode = *(SpeexMode**)state; |
+ return (mode)->dec(state, bits, out); |
+} |
+ |
+#else |
+ |
+EXPORT int speex_encode(void *state, float *in, SpeexBits *bits) |
+{ |
+ return (*((SpeexMode**)state))->enc(state, in, bits); |
+} |
+ |
+EXPORT int speex_encode_int(void *state, spx_int16_t *in, SpeexBits *bits) |
+{ |
+ int i; |
+ spx_int32_t N; |
+ float float_in[MAX_IN_SAMPLES]; |
+ speex_encoder_ctl(state, SPEEX_GET_FRAME_SIZE, &N); |
+ for (i=0;i<N;i++) |
+ float_in[i] = in[i]; |
+ return (*((SpeexMode**)state))->enc(state, float_in, bits); |
+} |
+ |
+EXPORT int speex_decode(void *state, SpeexBits *bits, float *out) |
+{ |
+ return (*((SpeexMode**)state))->dec(state, bits, out); |
+} |
+ |
+EXPORT int speex_decode_int(void *state, SpeexBits *bits, spx_int16_t *out) |
+{ |
+ int i; |
+ spx_int32_t N; |
+ float float_out[MAX_IN_SAMPLES]; |
+ int ret; |
+ speex_decoder_ctl(state, SPEEX_GET_FRAME_SIZE, &N); |
+ ret = (*((SpeexMode**)state))->dec(state, bits, float_out); |
+ for (i=0;i<N;i++) |
+ { |
+ if (float_out[i]>32767.f) |
+ out[i] = 32767; |
+ else if (float_out[i]<-32768.f) |
+ out[i] = -32768; |
+ else |
+ out[i] = (spx_int16_t)floor(.5+float_out[i]); |
+ } |
+ return ret; |
+} |
+#endif |
+ |
+ |
+ |
+EXPORT int speex_encoder_ctl(void *state, int request, void *ptr) |
+{ |
+ return (*((SpeexMode**)state))->enc_ctl(state, request, ptr); |
+} |
+ |
+EXPORT int speex_decoder_ctl(void *state, int request, void *ptr) |
+{ |
+ return (*((SpeexMode**)state))->dec_ctl(state, request, ptr); |
+} |
+ |
+ |
+ |
+int nb_mode_query(const void *mode, int request, void *ptr) |
+{ |
+ const SpeexNBMode *m = (const SpeexNBMode*)mode; |
+ |
+ switch (request) |
+ { |
+ case SPEEX_MODE_FRAME_SIZE: |
+ *((int*)ptr)=m->frameSize; |
+ break; |
+ case SPEEX_SUBMODE_BITS_PER_FRAME: |
+ if (*((int*)ptr)==0) |
+ *((int*)ptr) = NB_SUBMODE_BITS+1; |
+ else if (m->submodes[*((int*)ptr)]==NULL) |
+ *((int*)ptr) = -1; |
+ else |
+ *((int*)ptr) = m->submodes[*((int*)ptr)]->bits_per_frame; |
+ break; |
+ default: |
+ speex_warning_int("Unknown nb_mode_query request: ", request); |
+ return -1; |
+ } |
+ return 0; |
+} |
+ |
+ |
+ |
+EXPORT int speex_lib_ctl(int request, void *ptr) |
+{ |
+ switch (request) |
+ { |
+ case SPEEX_LIB_GET_MAJOR_VERSION: |
+ *((int*)ptr) = SPEEX_MAJOR_VERSION; |
+ break; |
+ case SPEEX_LIB_GET_MINOR_VERSION: |
+ *((int*)ptr) = SPEEX_MINOR_VERSION; |
+ break; |
+ case SPEEX_LIB_GET_MICRO_VERSION: |
+ *((int*)ptr) = SPEEX_MICRO_VERSION; |
+ break; |
+ case SPEEX_LIB_GET_EXTRA_VERSION: |
+ *((const char**)ptr) = SPEEX_EXTRA_VERSION; |
+ break; |
+ case SPEEX_LIB_GET_VERSION_STRING: |
+ *((const char**)ptr) = SPEEX_VERSION; |
+ break; |
+ /*case SPEEX_LIB_SET_ALLOC_FUNC: |
+ break; |
+ case SPEEX_LIB_GET_ALLOC_FUNC: |
+ break; |
+ case SPEEX_LIB_SET_FREE_FUNC: |
+ break; |
+ case SPEEX_LIB_GET_FREE_FUNC: |
+ break;*/ |
+ default: |
+ speex_warning_int("Unknown wb_mode_query request: ", request); |
+ return -1; |
+ } |
+ return 0; |
+} |
Property changes on: speex/libspeex/speex.c |
___________________________________________________________________ |
Name: svn:executable |
+ * |