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-rw-r--r--misc/tcodec2.c220
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diff --git a/misc/tcodec2.c b/misc/tcodec2.c
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--- a/misc/tcodec2.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*---------------------------------------------------------------------------*\
-
- FILE........: tcodec2.c
- AUTHOR......: David Rowe
- DATE CREATED: 24/8/10
-
- Test program for codec2.c functions.
-
-\*---------------------------------------------------------------------------*/
-
-/*
- Copyright (C) 2010 David Rowe
-
- All rights reserved.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License version 2.1, as
- published by the Free Software Foundation. This program is
- distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
- License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with this program; if not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include <assert.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <math.h>
-#include "defines.h"
-#include "comp.h"
-#include "codec2.h"
-#include "quantise.h"
-#include "interp.h"
-
-/* CODEC2 struct copies from codec2.c to help with testing */
-
-struct CODEC2 {
- int mode;
- float w[M]; /* time domain hamming window */
- COMP W[FFT_ENC]; /* DFT of w[] */
- float Pn[2*N]; /* trapezoidal synthesis window */
- float Sn[M]; /* input speech */
- float hpf_states[2]; /* high pass filter states */
- void *nlp; /* pitch predictor states */
- float Sn_[2*N]; /* synthesised output speech */
- float ex_phase; /* excitation model phase track */
- float bg_est; /* background noise estimate for post filter */
- float prev_Wo; /* previous frame's pitch estimate */
- MODEL prev_model; /* previous frame's model parameters */
- float prev_lsps_[LPC_ORD]; /* previous frame's LSPs */
- float prev_energy; /* previous frame's LPC energy */
-};
-
-void analyse_one_frame(struct CODEC2 *c2, MODEL *model, short speech[]);
-void synthesise_one_frame(struct CODEC2 *c2, short speech[], MODEL *model, float ak[]);
-
-int test1()
-{
- FILE *fin, *fout;
- short buf[N];
- struct CODEC2 *c2;
- MODEL model;
- float ak[LPC_ORD+1];
- float lsps[LPC_ORD];
-
- c2 = codec2_create(CODEC2_MODE_2400);
-
- fin = fopen("../raw/hts1a.raw", "rb");
- assert(fin != NULL);
- fout = fopen("hts1a_test.raw", "wb");
- assert(fout != NULL);
-
- while(fread(buf, sizeof(short), N, fin) == N) {
- analyse_one_frame(c2, &model, buf);
- speech_to_uq_lsps(lsps, ak, c2->Sn, c2->w, LPC_ORD);
- synthesise_one_frame(c2, buf, &model, ak);
- fwrite(buf, sizeof(short), N, fout);
- }
-
- codec2_destroy(c2);
-
- fclose(fin);
- fclose(fout);
-
- return 0;
-}
-
-int test2()
-{
- FILE *fin, *fout;
- short buf[2*N];
- struct CODEC2 *c2;
- MODEL model, model_interp;
- float ak[LPC_ORD+1];
- int voiced1, voiced2;
- int lsp_indexes[LPC_ORD];
- int energy_index;
- int Wo_index;
- char *bits;
- int nbit;
- int i;
- float lsps[LPC_ORD];
- float e;
-
- c2 = codec2_create(CODEC2_MODE_2400);
- bits = (char*)malloc(codec2_bits_per_frame(c2));
- assert(bits != NULL);
- fin = fopen("../raw/hts1a.raw", "rb");
- assert(fin != NULL);
- fout = fopen("hts1a_test.raw", "wb");
- assert(fout != NULL);
-
- while(fread(buf, sizeof(short), 2*N, fin) == 2*N) {
- /* first 10ms analysis frame - we just want voicing */
-
- analyse_one_frame(c2, &model, buf);
- voiced1 = model.voiced;
-
- /* second 10ms analysis frame */
-
- analyse_one_frame(c2, &model, &buf[N]);
- voiced2 = model.voiced;
-
- Wo_index = encode_Wo(model.Wo);
- e = speech_to_uq_lsps(lsps, ak, c2->Sn, c2->w, LPC_ORD);
- encode_lsps_scalar(lsp_indexes, lsps, LPC_ORD);
- energy_index = encode_energy(e);
- nbit = 0;
- pack((unsigned char*)bits, (unsigned *)&nbit, Wo_index, WO_BITS);
- for(i=0; i<LPC_ORD; i++) {
- pack((unsigned char*)bits, (unsigned *)&nbit, lsp_indexes[i], lsp_bits(i));
- }
- pack((unsigned char*)bits, (unsigned *)&nbit, energy_index, E_BITS);
- pack((unsigned char*)bits, (unsigned *)&nbit, voiced1, 1);
- pack((unsigned char*)bits, (unsigned *)&nbit, voiced2, 1);
-
- nbit = 0;
- Wo_index = unpack((unsigned char*)bits, (unsigned *)&nbit, WO_BITS);
- for(i=0; i<LPC_ORD; i++) {
- lsp_indexes[i] = unpack((unsigned char*)bits, (unsigned *)&nbit, lsp_bits(i));
- }
- energy_index = unpack((unsigned char*)bits, (unsigned *)&nbit, E_BITS);
- voiced1 = unpack((unsigned char*)bits, (unsigned *)&nbit, 1);
- voiced2 = unpack((unsigned char*)bits, (unsigned *)&nbit, 1);
-
- model.Wo = decode_Wo(Wo_index);
- model.L = PI/model.Wo;
- decode_amplitudes(&model,
- ak,
- lsp_indexes,
- energy_index,
- lsps,
- &e);
-
- model.voiced = voiced2;
- model_interp.voiced = voiced1;
- interpolate(&model_interp, &c2->prev_model, &model);
-
- synthesise_one_frame(c2, buf, &model_interp, ak);
- synthesise_one_frame(c2, &buf[N], &model, ak);
-
- memcpy(&c2->prev_model, &model, sizeof(MODEL));
- fwrite(buf, sizeof(short), 2*N, fout);
- }
-
- free(bits);
- codec2_destroy(c2);
-
- fclose(fin);
- fclose(fout);
-
- return 0;
-}
-
-int test3()
-{
- FILE *fin, *fout, *fbits;
- short buf1[2*N];
- short buf2[2*N];
- char *bits;
- struct CODEC2 *c2;
-
- c2 = codec2_create(CODEC2_MODE_2400);
- int numBits = codec2_bits_per_frame(c2);
- int numBytes = (numBits+7)>>3;
-
- bits = (char*)malloc(numBytes);
-
- fin = fopen("../raw/hts1a.raw", "rb");
- assert(fin != NULL);
- fout = fopen("hts1a_test.raw", "wb");
- assert(fout != NULL);
- fbits = fopen("hts1a_test3.bit", "wb");
- assert(fout != NULL);
-
- while(fread(buf1, sizeof(short), 2*N, fin) == 2*N) {
- codec2_encode(c2, (void*)bits, buf1);
- fwrite(bits, sizeof(char), numBytes, fbits);
- codec2_decode(c2, buf2, (void*)bits);
- fwrite(buf2, sizeof(short), numBytes, fout);
- }
-
- free(bits);
- codec2_destroy(c2);
-
- fclose(fin);
- fclose(fout);
- fclose(fbits);
-
- return 0;
-}
-
-int main() {
- test3();
- return 0;
-}
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