ref: 3dbc1d0df9eb82b0d376d6db70d976e2c4b0c668
parent: 03f9ed300583c4eb8ebb81abf49c427d24893153
author: Jean-Marc Valin <[email protected]>
date: Sat Mar 8 10:21:24 EST 2008
cleaning up some of the mode stuff
--- a/libcelt/celt.c
+++ b/libcelt/celt.c
@@ -160,7 +160,7 @@
}
/** Apply window and compute the MDCT for all sub-frames and all channels in a frame */
-static celt_word32_t compute_mdcts(const mdct_lookup *mdct_lookup, celt_word16_t *window, celt_sig_t *in, celt_sig_t *out, int N, int overlap, int B, int C)
+static celt_word32_t compute_mdcts(const mdct_lookup *mdct_lookup, const celt_word16_t *window, celt_sig_t *in, celt_sig_t *out, int N, int overlap, int B, int C)
{
int i, c, N4;
celt_word32_t E = 0;
@@ -200,7 +200,7 @@
}
/** Compute the IMDCT and apply window for all sub-frames and all channels in a frame */
-static void compute_inv_mdcts(const mdct_lookup *mdct_lookup, celt_word16_t *window, celt_sig_t *X, celt_sig_t *out_mem, celt_sig_t *mdct_overlap, int N, int overlap, int B, int C)
+static void compute_inv_mdcts(const mdct_lookup *mdct_lookup, const celt_word16_t *window, celt_sig_t *X, celt_sig_t *out_mem, celt_sig_t *mdct_overlap, int N, int overlap, int B, int C)
{
int i, c, N4;
VARDECL(celt_word32_t *x);
--- a/libcelt/dump_modes.c
+++ b/libcelt/dump_modes.c
@@ -37,12 +37,19 @@
#include "modes.h"
#include "celt.h"
+#define INT16 "%d"
+#define INT32 "%d"
+#define FLOAT "%f"
+
#ifdef FIXED_POINT
-#define WORD "%d"
+#define WORD16 INT16
+#define WORD32 INT32
#else
-#define WORD "%f"
+#define WORD16 FLOAT
+#define WORD32 FLOAT
#endif
+
void dump_modes(FILE *file, CELTMode *modes, int nb_modes)
{
int i, j;
@@ -63,7 +70,7 @@
fprintf(file, "\n");
fprintf (file, "const celt_word16_t window%d[%d] = {\n", modes->overlap, modes->overlap);
for (j=0;j<modes->overlap;j++)
- fprintf (file, WORD ", ", modes->window[j]);
+ fprintf (file, WORD16 ", ", modes->window[j]);
printf ("};\n");
fprintf(file, "\n");
fprintf (file, "const int allocVectors%d_%d[%d] = {\n", modes->Fs, modes->mdctSize, modes->nbEBands*modes->nbAllocVectors);
@@ -78,7 +85,7 @@
fprintf(file, "\n");
fprintf(file, "CELTMode mode%d_%d_%d_%d = {\n", modes->Fs, modes->nbChannels, modes->mdctSize, modes->overlap);
fprintf(file, "0x%x,\t/* marker */\n", 0xa110ca7e);
- fprintf(file, "%d,\t/* Fs */\n", modes->Fs);
+ fprintf(file, INT32 ",\t/* Fs */\n", modes->Fs);
fprintf(file, "%d,\t/* overlap */\n", modes->overlap);
fprintf(file, "%d,\t/* mdctSize */\n", modes->mdctSize);
fprintf(file, "%d,\t/* nbMdctBlocks */\n", modes->nbMdctBlocks);
@@ -88,22 +95,23 @@
fprintf(file, "%d,\t/* pitchEnd */\n", modes->pitchEnd);
fprintf(file, "eBands%d_%d,\t/* eBands */\n", modes->Fs, modes->mdctSize);
fprintf(file, "pBands%d_%d,\t/* pBands */\n", modes->Fs, modes->mdctSize);
- fprintf(file, "%d,\t/* ePredCoef */\n", modes->ePredCoef);
+ fprintf(file, WORD16 ",\t/* ePredCoef */\n", modes->ePredCoef);
fprintf(file, "%d,\t/* nbAllocVectors */\n", modes->nbAllocVectors);
fprintf(file, "allocVectors%d_%d,\t/* allocVectors */\n", modes->Fs, modes->mdctSize);
fprintf(file, "0,\t/* bits */\n");
- fprintf(file, "0x%x,\t/* marker */\n", 0xa110ca7e);
- fprintf(file, "{0, 0, 0},\t/* ,mdct */\n", modes->mdctSize);
+ fprintf(file, "{%d, 0, 0},\t/* mdct */\n", 2*modes->mdctSize);
fprintf(file, "window%d,\t/* window */\n", modes->overlap);
+ fprintf(file, "0x%x,\t/* marker */\n", 0xa110ca7e);
fprintf(file, "};\n");
modes++;
}
}
-#if 0
+#if 1
int main()
{
- CELTMode *m = celt_mode_create(44100, 2, 256, 128, NULL);
+ CELTMode *m = celt_mode_create(44100, 1, 256, 128, NULL);
dump_modes(stdout, m, 1);
+ return 0;
}
#endif
--- a/libcelt/modes.c
+++ b/libcelt/modes.c
@@ -218,7 +218,8 @@
int res;
int N, i;
CELTMode *mode;
-
+ celt_word16_t *window;
+
/* The good thing here is that permutation of the arguments will automatically be invalid */
if (Fs < 32000 || Fs > 64000)
@@ -268,15 +269,16 @@
N = mode->mdctSize;
mdct_init(&mode->mdct, 2*N);
- mode->window = (celt_word16_t*)celt_alloc(mode->overlap*sizeof(celt_word16_t));
+ window = (celt_word16_t*)celt_alloc(mode->overlap*sizeof(celt_word16_t));
#ifndef FIXED_POINT
for (i=0;i<mode->overlap;i++)
- mode->window[i] = Q15ONE*sin(.5*M_PI* sin(.5*M_PI*(i+.5)/mode->overlap) * sin(.5*M_PI*(i+.5)/mode->overlap));
+ window[i] = Q15ONE*sin(.5*M_PI* sin(.5*M_PI*(i+.5)/mode->overlap) * sin(.5*M_PI*(i+.5)/mode->overlap));
#else
for (i=0;i<mode->overlap;i++)
- mode->window[i] = MIN32(32767,32768.*sin(.5*M_PI* sin(.5*M_PI*(i+.5)/mode->overlap) * sin(.5*M_PI*(i+.5)/mode->overlap)));
+ window[i] = MIN32(32767,32768.*sin(.5*M_PI* sin(.5*M_PI*(i+.5)/mode->overlap) * sin(.5*M_PI*(i+.5)/mode->overlap)));
#endif
+ mode->window = window;
mode->marker_start = MODEVALID;
mode->marker_end = MODEVALID;
@@ -303,7 +305,7 @@
}
celt_free((int**)mode->bits);
mdct_clear(&mode->mdct);
- celt_free(mode->window);
+ celt_free((celt_word16_t*)mode->window);
mode->marker_start = MODEFREED;
mode->marker_end = MODEFREED;
--- a/libcelt/modes.h
+++ b/libcelt/modes.h
@@ -61,13 +61,13 @@
const int *allocVectors; /**< Number of bits in each band for several rates */
const int * const *bits; /**< Cache for pulses->bits mapping in each band */
- celt_uint32_t marker_end;
-
+
/* Stuff that could go in the {en,de}coder, but we save space this way */
mdct_lookup mdct;
- celt_word16_t *window;
+ const celt_word16_t *window;
+ celt_uint32_t marker_end;
};
int check_mode(const CELTMode *mode);
--- a/libcelt/quant_pitch.c
+++ b/libcelt/quant_pitch.c
@@ -99,7 +99,7 @@
int unquant_pitch(celt_pgain_t *gains, int len, ec_dec *dec)
{
- int i, id;
+ int id;
id = ec_dec_uint(dec, 128);
id2gains(id, gains, len);
return id!=0;