#include "libavutil/crc.h"
#include "libavutil/float_dsp.h"
#include "libavutil/libm.h"
+#include "libavutil/mem_internal.h"
#include "libavutil/thread.h"
+
#include "avcodec.h"
#include "get_bits.h"
#include "internal.h"
#define HEADER_SIZE 4
#include "mpegaudiodata.h"
-#include "mpegaudiodectab.h"
-
-/* vlc structure for decoding layer 3 huffman tables */
-static VLC huff_vlc[16];
-static VLC_TYPE huff_vlc_tables[
- 128 + 128 + 128 + 130 + 128 + 154 + 166 +
- 142 + 204 + 190 + 170 + 542 + 460 + 662 + 414
- ][2];
-static VLC huff_quad_vlc[2];
-static VLC_TYPE huff_quad_vlc_tables[64+16][2];
-/* computed from band_size_long */
-static uint16_t band_index_long[9][23];
+
#include "mpegaudio_tablegen.h"
/* intensity stereo coef table */
-static INTFLOAT is_table[2][16];
static INTFLOAT is_table_lsf[2][2][16];
-static INTFLOAT csa_table[8][4];
-
-static int16_t division_tab3[1 << 6 ];
-static int16_t division_tab5[1 << 8 ];
-static int16_t division_tab9[1 << 11];
-
-static int16_t * const division_tabs[4] = {
- division_tab3, division_tab5, NULL, division_tab9
-};
-/* lower 2 bits: modulo 3, higher bits: shift */
-static uint16_t scale_factor_modshift[64];
/* [i][j]: 2^(-j/3) * FRAC_ONE * 2^(i+2) / (2^(i+2) - 1) */
static int32_t scale_factor_mult[15][3];
/* mult table for layer 2 group quantization */
int ra1, int ra2)
{
int l;
- g->region_size[0] = band_index_long[s->sample_rate_index][ra1 + 1] >> 1;
+ g->region_size[0] = ff_band_index_long[s->sample_rate_index][ra1 + 1];
/* should not overflow */
l = FFMIN(ra1 + ra2 + 2, 22);
- g->region_size[1] = band_index_long[s->sample_rate_index][ l] >> 1;
+ g->region_size[1] = ff_band_index_long[s->sample_rate_index][ l];
}
static void compute_band_indexes(MPADecodeContext *s, GranuleDef *g)
int shift, mod;
int64_t val;
- shift = scale_factor_modshift[scale_factor];
+ shift = ff_scale_factor_modshift[scale_factor];
mod = shift & 3;
shift >>= 2;
val = MUL64((int)(mant + (-1U << n) + 1), scale_factor_mult[n-1][mod]);
{
int shift, mod, val;
- shift = scale_factor_modshift[scale_factor];
+ shift = ff_scale_factor_modshift[scale_factor];
mod = shift & 3;
shift >>= 2;
unsigned int m;
int e;
- e = table_4_3_exp [4 * value + (exponent & 3)];
- m = table_4_3_value[4 * value + (exponent & 3)];
+ e = ff_table_4_3_exp [4 * value + (exponent & 3)];
+ m = ff_table_4_3_value[4 * value + (exponent & 3)];
e -= exponent >> 2;
#ifdef DEBUG
if(e < 1)
static av_cold void decode_init_static(void)
{
- const uint8_t *huff_sym = mpa_huffsymbols, *huff_lens = mpa_hufflens;
- int i, j, k;
- int offset;
-
- /* scale factors table for layer 1/2 */
- for (i = 0; i < 64; i++) {
- int shift, mod;
- /* 1.0 (i = 3) is normalized to 2 ^ FRAC_BITS */
- shift = i / 3;
- mod = i % 3;
- scale_factor_modshift[i] = mod | (shift << 2);
- }
+ int i, j;
/* scale factor multiply for layer 1 */
for (i = 0; i < 15; i++) {
scale_factor_mult[i][2]);
}
- /* huffman decode tables */
- offset = 0;
- for (int i = 0; i < 15;) {
- uint16_t tmp_symbols[256];
- int nb_codes_minus_one = mpa_huff_sizes_minus_one[i];
- int j;
-
- for (j = 0; j <= nb_codes_minus_one; j++) {
- uint8_t high = huff_sym[j] & 0xF0, low = huff_sym[j] & 0xF;
-
- tmp_symbols[j] = high << 1 | ((high && low) << 4) | low;
- }
-
- /* XXX: fail test */
- huff_vlc[++i].table = huff_vlc_tables + offset;
- huff_vlc[i].table_allocated = FF_ARRAY_ELEMS(huff_vlc_tables) - offset;
- ff_init_vlc_from_lengths(&huff_vlc[i], 7, j,
- huff_lens, 1, tmp_symbols, 2, 2,
- 0, INIT_VLC_STATIC_OVERLONG, NULL);
- offset += huff_vlc[i].table_size;
- huff_lens += j;
- huff_sym += j;
- }
- av_assert0(offset == FF_ARRAY_ELEMS(huff_vlc_tables));
-
- offset = 0;
- for (i = 0; i < 2; i++) {
- int bits = i == 0 ? 6 : 4;
- huff_quad_vlc[i].table = huff_quad_vlc_tables+offset;
- huff_quad_vlc[i].table_allocated = 1 << bits;
- offset += 1 << bits;
- init_vlc(&huff_quad_vlc[i], bits, 16,
- mpa_quad_bits[i], 1, 1, mpa_quad_codes[i], 1, 1,
- INIT_VLC_USE_NEW_STATIC);
- }
- av_assert0(offset == FF_ARRAY_ELEMS(huff_quad_vlc_tables));
-
- for (i = 0; i < 9; i++) {
- k = 0;
- for (j = 0; j < 22; j++) {
- band_index_long[i][j] = k;
- k += band_size_long[i][j];
- }
- band_index_long[i][22] = k;
- }
-
/* compute n ^ (4/3) and store it in mantissa/exp format */
mpegaudio_tableinit();
- for (i = 0; i < 4; i++) {
- if (ff_mpa_quant_bits[i] < 0) {
- for (j = 0; j < (1 << (-ff_mpa_quant_bits[i] + 1)); j++) {
- int val1, val2, val3, steps;
- int val = j;
- steps = ff_mpa_quant_steps[i];
- val1 = val % steps;
- val /= steps;
- val2 = val % steps;
- val3 = val / steps;
- division_tabs[i][j] = val1 + (val2 << 4) + (val3 << 8);
- }
- }
- }
-
-
- for (i = 0; i < 7; i++) {
- float f;
- INTFLOAT v;
- if (i != 6) {
- f = tan((double)i * M_PI / 12.0);
- v = FIXR(f / (1.0 + f));
- } else {
- v = FIXR(1.0);
- }
- is_table[0][ i] = v;
- is_table[1][6 - i] = v;
- }
- /* invalid values */
- for (i = 7; i < 16; i++)
- is_table[0][i] = is_table[1][i] = 0.0;
-
for (i = 0; i < 16; i++) {
double f;
int e, k;
(float) is_table_lsf[j][1][i]);
}
}
-
- for (i = 0; i < 8; i++) {
- double ci, cs, ca;
- ci = ci_table[i];
- cs = 1.0 / sqrt(1.0 + ci * ci);
- ca = cs * ci;
-#if !USE_FLOATS
- csa_table[i][0] = FIXHR(cs/4);
- csa_table[i][1] = FIXHR(ca/4);
- csa_table[i][2] = FIXHR(ca/4) + FIXHR(cs/4);
- csa_table[i][3] = FIXHR(ca/4) - FIXHR(cs/4);
-#else
- csa_table[i][0] = cs;
- csa_table[i][1] = ca;
- csa_table[i][2] = ca + cs;
- csa_table[i][3] = ca - cs;
-#endif
- }
RENAME(ff_mpa_synth_init)();
+ ff_mpegaudiodec_common_init_static();
}
static av_cold int decode_init(AVCodecContext * avctx)
int v2;
/* 3 values at the same time */
v = get_bits(&s->gb, -bits);
- v2 = division_tabs[qindex][v];
+ v2 = ff_division_tabs[qindex][v];
steps = ff_mpa_quant_steps[qindex];
s->sb_samples[ch][k * 12 + l + 0][i] =
gain = g->global_gain - 210;
shift = g->scalefac_scale + 1;
- bstab = band_size_long[s->sample_rate_index];
- pretab = mpa_pretab[g->preflag];
+ bstab = ff_band_size_long[s->sample_rate_index];
+ pretab = ff_mpa_pretab[g->preflag];
for (i = 0; i < g->long_end; i++) {
v0 = gain - ((g->scale_factors[i] + pretab[i]) << shift) + 400;
len = bstab[i];
}
if (g->short_start < 13) {
- bstab = band_size_short[s->sample_rate_index];
+ bstab = ff_band_size_short[s->sample_rate_index];
gains[0] = gain - (g->subblock_gain[0] << 3);
gains[1] = gain - (g->subblock_gain[1] << 3);
gains[2] = gain - (g->subblock_gain[2] << 3);
continue;
/* select vlc table */
k = g->table_select[i];
- l = mpa_huff_data[k][0];
- linbits = mpa_huff_data[k][1];
- vlc = &huff_vlc[l];
+ l = ff_mpa_huff_data[k][0];
+ linbits = ff_mpa_huff_data[k][1];
+ vlc = &ff_huff_vlc[l];
if (!l) {
memset(&g->sb_hybrid[s_index], 0, sizeof(*g->sb_hybrid) * 2 * j);
}
/* high frequencies */
- vlc = &huff_quad_vlc[g->count1table_select];
+ vlc = &ff_huff_quad_vlc[g->count1table_select];
last_pos = 0;
while (s_index <= 572) {
int pos, code;
}
for (i = g->short_start; i < 13; i++) {
- len = band_size_short[s->sample_rate_index][i];
+ len = ff_band_size_short[s->sample_rate_index][i];
ptr1 = ptr;
dst = tmp;
for (j = len; j > 0; j--) {
{
int i, j, k, l;
int sf_max, sf, len, non_zero_found;
- INTFLOAT (*is_tab)[16], *tab0, *tab1, v1, v2;
+ INTFLOAT *tab0, *tab1, v1, v2;
+ const INTFLOAT (*is_tab)[16];
SUINTFLOAT tmp0, tmp1;
int non_zero_found_short[3];
/* for last band, use previous scale factor */
if (i != 11)
k -= 3;
- len = band_size_short[s->sample_rate_index][i];
+ len = ff_band_size_short[s->sample_rate_index][i];
for (l = 2; l >= 0; l--) {
tab0 -= len;
tab1 -= len;
non_zero_found_short[2];
for (i = g1->long_end - 1;i >= 0;i--) {
- len = band_size_long[s->sample_rate_index][i];
+ len = ff_band_size_long[s->sample_rate_index][i];
tab0 -= len;
tab1 -= len;
/* test if non zero band. if so, stop doing i-stereo */
int slen, slen1, slen2;
/* MPEG-1 scale factors */
- slen1 = slen_table[0][g->scalefac_compress];
- slen2 = slen_table[1][g->scalefac_compress];
+ slen1 = ff_slen_table[0][g->scalefac_compress];
+ slen2 = ff_slen_table[1][g->scalefac_compress];
ff_dlog(s->avctx, "slen1=%d slen2=%d\n", slen1, slen2);
if (g->block_type == 2) {
n = g->switch_point ? 17 : 18;
j = 0;
for (k = 0; k < 4; k++) {
- n = lsf_nsf_table[tindex2][tindex][k];
+ n = ff_lsf_nsf_table[tindex2][tindex][k];
sl = slen[k];
if (sl) {
for (i = 0; i < n; i++)
projects / ffmpeg / blobdiff