44 #define EXPMAX ((19+EXPVLCBITS-1)/EXPVLCBITS)
46 #define HGAINVLCBITS 9
47 #define HGAINMAX ((13+HGAINVLCBITS-1)/HGAINVLCBITS)
66 static void dump_floats(
WMACodecContext *s,
const char *name,
int prec,
const float *tab,
int n)
159 t.v = ((u.v <<
LSP_POW_BITS) & ((1 << 23) - 1)) | (127 << 23);
170 wdel =
M_PI / frame_len;
171 for(i=0;i<frame_len;i++)
198 float *out,
float *val_max_ptr,
202 float p, q, w,
v, val_max;
221 *val_max_ptr = val_max;
233 if (i == 0 || i >= 8)
246 1.7782794100389e-04, 2.0535250264571e-04,
247 2.3713737056617e-04, 2.7384196342644e-04,
248 3.1622776601684e-04, 3.6517412725484e-04,
249 4.2169650342858e-04, 4.8696752516586e-04,
250 5.6234132519035e-04, 6.4938163157621e-04,
251 7.4989420933246e-04, 8.6596432336006e-04,
252 1.0000000000000e-03, 1.1547819846895e-03,
253 1.3335214321633e-03, 1.5399265260595e-03,
254 1.7782794100389e-03, 2.0535250264571e-03,
255 2.3713737056617e-03, 2.7384196342644e-03,
256 3.1622776601684e-03, 3.6517412725484e-03,
257 4.2169650342858e-03, 4.8696752516586e-03,
258 5.6234132519035e-03, 6.4938163157621e-03,
259 7.4989420933246e-03, 8.6596432336006e-03,
260 1.0000000000000e-02, 1.1547819846895e-02,
261 1.3335214321633e-02, 1.5399265260595e-02,
262 1.7782794100389e-02, 2.0535250264571e-02,
263 2.3713737056617e-02, 2.7384196342644e-02,
264 3.1622776601684e-02, 3.6517412725484e-02,
265 4.2169650342858e-02, 4.8696752516586e-02,
266 5.6234132519035e-02, 6.4938163157621e-02,
267 7.4989420933246e-02, 8.6596432336007e-02,
268 1.0000000000000e-01, 1.1547819846895e-01,
269 1.3335214321633e-01, 1.5399265260595e-01,
270 1.7782794100389e-01, 2.0535250264571e-01,
271 2.3713737056617e-01, 2.7384196342644e-01,
272 3.1622776601684e-01, 3.6517412725484e-01,
273 4.2169650342858e-01, 4.8696752516586e-01,
274 5.6234132519035e-01, 6.4938163157621e-01,
275 7.4989420933246e-01, 8.6596432336007e-01,
276 1.0000000000000e+00, 1.1547819846895e+00,
277 1.3335214321633e+00, 1.5399265260595e+00,
278 1.7782794100389e+00, 2.0535250264571e+00,
279 2.3713737056617e+00, 2.7384196342644e+00,
280 3.1622776601684e+00, 3.6517412725484e+00,
281 4.2169650342858e+00, 4.8696752516586e+00,
282 5.6234132519035e+00, 6.4938163157621e+00,
283 7.4989420933246e+00, 8.6596432336007e+00,
284 1.0000000000000e+01, 1.1547819846895e+01,
285 1.3335214321633e+01, 1.5399265260595e+01,
286 1.7782794100389e+01, 2.0535250264571e+01,
287 2.3713737056617e+01, 2.7384196342644e+01,
288 3.1622776601684e+01, 3.6517412725484e+01,
289 4.2169650342858e+01, 4.8696752516586e+01,
290 5.6234132519035e+01, 6.4938163157621e+01,
291 7.4989420933246e+01, 8.6596432336007e+01,
292 1.0000000000000e+02, 1.1547819846895e+02,
293 1.3335214321633e+02, 1.5399265260595e+02,
294 1.7782794100389e+02, 2.0535250264571e+02,
295 2.3713737056617e+02, 2.7384196342644e+02,
296 3.1622776601684e+02, 3.6517412725484e+02,
297 4.2169650342858e+02, 4.8696752516586e+02,
298 5.6234132519035e+02, 6.4938163157621e+02,
299 7.4989420933246e+02, 8.6596432336007e+02,
300 1.0000000000000e+03, 1.1547819846895e+03,
301 1.3335214321633e+03, 1.5399265260595e+03,
302 1.7782794100389e+03, 2.0535250264571e+03,
303 2.3713737056617e+03, 2.7384196342644e+03,
304 3.1622776601684e+03, 3.6517412725484e+03,
305 4.2169650342858e+03, 4.8696752516586e+03,
306 5.6234132519035e+03, 6.4938163157621e+03,
307 7.4989420933246e+03, 8.6596432336007e+03,
308 1.0000000000000e+04, 1.1547819846895e+04,
309 1.3335214321633e+04, 1.5399265260595e+04,
310 1.7782794100389e+04, 2.0535250264571e+04,
311 2.3713737056617e+04, 2.7384196342644e+04,
312 3.1622776601684e+04, 3.6517412725484e+04,
313 4.2169650342858e+04, 4.8696752516586e+04,
314 5.6234132519035e+04, 6.4938163157621e+04,
315 7.4989420933246e+04, 8.6596432336007e+04,
316 1.0000000000000e+05, 1.1547819846895e+05,
317 1.3335214321633e+05, 1.5399265260595e+05,
318 1.7782794100389e+05, 2.0535250264571e+05,
319 2.3713737056617e+05, 2.7384196342644e+05,
320 3.1622776601684e+05, 3.6517412725484e+05,
321 4.2169650342858e+05, 4.8696752516586e+05,
322 5.6234132519035e+05, 6.4938163157621e+05,
323 7.4989420933246e+05, 8.6596432336007e+05,
331 int last_exp, n, code;
334 uint32_t *q, *q_end, iv;
335 const float *ptab = pow_tab + 60;
336 const uint32_t *iptab = (
const uint32_t*)ptab;
345 iv = iptab[last_exp];
353 }
while ((n -= 4) > 0);
364 last_exp += code - 60;
371 iv = iptab[last_exp];
380 }
while ((n -= 4) > 0);
396 int block_len, bsize, n;
414 memcpy(out+n+block_len, in+n+block_len, n*
sizeof(
float));
432 memcpy(out, in, n*
sizeof(
float));
436 memset(out+n+block_len, 0, n*
sizeof(
float));
447 int n,
v, a, ch, bsize;
448 int coef_nb_bits, total_gain;
555 val = (int)0x80000000;
558 if (val == (
int)0x80000000) {
603 0, ptr, 0, nb_coefs[ch],
614 mdct_norm = 1.0 / (float)n4;
616 mdct_norm *= sqrt(n4);
624 float *coefs, *exponents,
mult, mult1,
noise;
625 int i, j, n, n1, last_high_band, esize;
631 mult = pow(10, total_gain * 0.05) / s->
max_exponent[ch];
633 coefs = s->
coefs[ch];
639 exponents[i<<bsize>>esize] * mult1;
655 for(i = 0;i < n; i++) {
656 v = exponents[i<<bsize>>esize];
659 exp_power[j] = e2 / n;
661 tprintf(s->
avctx,
"%d: power=%f (%d)\n", j, exp_power[j], n);
663 exponents += n<<bsize>>esize;
678 mult1 = sqrt(exp_power[j] / exp_power[last_high_band]);
683 for(i = 0;i < n; i++) {
687 exponents[i<<bsize>>esize] * mult1;
689 exponents += n<<bsize>>esize;
692 for(i = 0;i < n; i++) {
695 *coefs++ = ((*coefs1++) + noise) *
696 exponents[i<<bsize>>esize] *
mult;
698 exponents += n<<bsize>>esize;
704 mult1 = mult * exponents[((-1<<bsize))>>esize];
705 for(i = 0; i < n; i++) {
714 for(i = 0;i < n; i++) {
715 *coefs++ = coefs1[i] * exponents[i<<bsize>>esize] *
mult;
718 for(i = 0;i < n; i++)
775 int ret, n, ch, incr;
799 for (ch = 0; ch < incr; ch++) {
805 dump_shorts(s,
"samples", samples, n * s->
nb_channels);
811 int *got_frame_ptr,
AVPacket *avpkt)
813 const uint8_t *buf = avpkt->
data;
814 int buf_size = avpkt->
size;
816 int nb_frames, bit_offset, i, pos,
len, ret;
820 tprintf(avctx,
"***decode_superframe:\n");
826 if (buf_size < s->block_align) {
828 "Input packet size too small (%d < %d)\n",
856 "Invalid last frame bit offset %d > buf size %d (%d)\n",
901 for(i=0;i<nb_frames;i++) {
911 len = buf_size - pos;