#define _XOPEN_SOURCE 600
-#include <inttypes.h>
-#include <stdio.h>
-#include <stdlib.h>
#include <math.h>
-#include <string.h>
#include <regex.h>
#include <sys/select.h>
int frame_len_bits;
/** Number of block sizes, one if !ahi->use_variable_block_len. */
int nb_block_sizes;
- /* block info */
- int reset_block_lengths;
+ /* Whether to update block lengths from getbit context. */
+ bool reset_block_lengths;
/** log2 of current block length. */
int block_len_bits;
/** log2 of next block length. */
};
#define EXPVLCBITS 8
-#define EXPMAX DIV_ROUND_UP(19, EXPVLCBITS)
-
#define HGAINVLCBITS 9
-#define HGAINMAX DIV_ROUND_UP(13, HGAINVLCBITS)
-
#define VLCBITS 9
-#define VLCMAX DIV_ROUND_UP(22, VLCBITS)
/** \cond sine_winows */
pwd->windows[i] = sine_windows[pwd->frame_len_bits - i - 7];
}
- pwd->reset_block_lengths = 1;
+ pwd->reset_block_lengths = true;
if (pwd->use_noise_coding) {
/* init the noise generator */
return 0;
}
-static void wma_lsp_to_curve_init(struct private_wmadec_data *pwd, int frame_len)
+static void wma_lsp_to_curve_init(struct private_wmadec_data *pwd)
{
float wdel, a, b;
int i, e, m;
- wdel = M_PI / frame_len;
- for (i = 0; i < frame_len; i++)
+ wdel = M_PI / pwd->frame_len;
+ for (i = 0; i < pwd->frame_len; i++)
pwd->lsp_cos_table[i] = 2.0f * cos(wdel * i);
/* tables for x^-0.25 computation */
wma_scale_huffbits, wma_scale_huffcodes, 4);
} else {
PARA_INFO_LOG("using curve\n");
- wma_lsp_to_curve_init(pwd, pwd->frame_len);
+ wma_lsp_to_curve_init(pwd);
}
*result = pwd;
return pwd->ahi.header_len;
last_exp = 36;
while (q < q_end) {
- code = get_vlc(&pwd->gb, pwd->exp_vlc.table, EXPVLCBITS, EXPMAX);
+ code = get_vlc(&pwd->gb, pwd->exp_vlc.table, EXPVLCBITS);
if (code < 0)
return code;
/* NOTE: this offset is the same as MPEG4 AAC ! */
val = get_bits(&pwd->gb, 7) - 19;
else {
int code = get_vlc(&pwd->gb,
- pwd->hgain_vlc.table, HGAINVLCBITS,
- HGAINMAX);
+ pwd->hgain_vlc.table, HGAINVLCBITS);
if (code < 0)
return code;
val += code - 18;
}
/* very high freqs: noise */
n = pwd->block_len - pwd->coefs_end[bsize];
- mult1 = mult * exponents[((-1 << bsize)) >> esize];
+ mult1 = mult * exponents[(-(1 << bsize)) >> esize];
for (i = 0; i < n; i++) {
*coefs++ = pwd->noise_table[pwd->noise_index] * mult1;
pwd->noise_index = (pwd->noise_index + 1)
n = wma_log2(pwd->nb_block_sizes - 1) + 1;
if (pwd->reset_block_lengths) {
- pwd->reset_block_lengths = 0;
+ pwd->reset_block_lengths = false;
v = get_bits(&pwd->gb, n);
if (v >= pwd->nb_block_sizes)
return -E_WMA_BLOCK_SIZE;
eptr = ptr + nb_coefs[ch];
memset(ptr, 0, pwd->block_len * sizeof(int16_t));
for (;;) {
- code = get_vlc(&pwd->gb, coef_vlc->table,
- VLCBITS, VLCMAX);
+ code = get_vlc(&pwd->gb, coef_vlc->table, VLCBITS);
if (code < 0)
return code;
if (code == 1) /* EOB */
if (len > 0)
skip_bits(&pwd->gb, len);
- pwd->reset_block_lengths = 1;
+ pwd->reset_block_lengths = true;
for (i = 0; i < nb_frames; i++) {
ret = wma_decode_frame(pwd, samples);
if (ret < 0)