43 #define EXPMAX ((19+EXPVLCBITS-1)/EXPVLCBITS)
45 #define HGAINVLCBITS 9
46 #define HGAINMAX ((13+HGAINVLCBITS-1)/HGAINVLCBITS)
65 static void dump_floats(
WMACodecContext *s,
const char *name,
int prec,
const float *tab,
int n)
153 t.v = ((u.v <<
LSP_POW_BITS) & ((1 << 23) - 1)) | (127 << 23);
164 wdel =
M_PI / frame_len;
165 for(i=0;i<frame_len;i++)
192 float *out,
float *val_max_ptr,
196 float p, q, w,
v, val_max;
215 *val_max_ptr = val_max;
227 if (i == 0 || i >= 8)
240 1.7782794100389e-04, 2.0535250264571e-04,
241 2.3713737056617e-04, 2.7384196342644e-04,
242 3.1622776601684e-04, 3.6517412725484e-04,
243 4.2169650342858e-04, 4.8696752516586e-04,
244 5.6234132519035e-04, 6.4938163157621e-04,
245 7.4989420933246e-04, 8.6596432336006e-04,
246 1.0000000000000e-03, 1.1547819846895e-03,
247 1.3335214321633e-03, 1.5399265260595e-03,
248 1.7782794100389e-03, 2.0535250264571e-03,
249 2.3713737056617e-03, 2.7384196342644e-03,
250 3.1622776601684e-03, 3.6517412725484e-03,
251 4.2169650342858e-03, 4.8696752516586e-03,
252 5.6234132519035e-03, 6.4938163157621e-03,
253 7.4989420933246e-03, 8.6596432336006e-03,
254 1.0000000000000e-02, 1.1547819846895e-02,
255 1.3335214321633e-02, 1.5399265260595e-02,
256 1.7782794100389e-02, 2.0535250264571e-02,
257 2.3713737056617e-02, 2.7384196342644e-02,
258 3.1622776601684e-02, 3.6517412725484e-02,
259 4.2169650342858e-02, 4.8696752516586e-02,
260 5.6234132519035e-02, 6.4938163157621e-02,
261 7.4989420933246e-02, 8.6596432336007e-02,
262 1.0000000000000e-01, 1.1547819846895e-01,
263 1.3335214321633e-01, 1.5399265260595e-01,
264 1.7782794100389e-01, 2.0535250264571e-01,
265 2.3713737056617e-01, 2.7384196342644e-01,
266 3.1622776601684e-01, 3.6517412725484e-01,
267 4.2169650342858e-01, 4.8696752516586e-01,
268 5.6234132519035e-01, 6.4938163157621e-01,
269 7.4989420933246e-01, 8.6596432336007e-01,
270 1.0000000000000e+00, 1.1547819846895e+00,
271 1.3335214321633e+00, 1.5399265260595e+00,
272 1.7782794100389e+00, 2.0535250264571e+00,
273 2.3713737056617e+00, 2.7384196342644e+00,
274 3.1622776601684e+00, 3.6517412725484e+00,
275 4.2169650342858e+00, 4.8696752516586e+00,
276 5.6234132519035e+00, 6.4938163157621e+00,
277 7.4989420933246e+00, 8.6596432336007e+00,
278 1.0000000000000e+01, 1.1547819846895e+01,
279 1.3335214321633e+01, 1.5399265260595e+01,
280 1.7782794100389e+01, 2.0535250264571e+01,
281 2.3713737056617e+01, 2.7384196342644e+01,
282 3.1622776601684e+01, 3.6517412725484e+01,
283 4.2169650342858e+01, 4.8696752516586e+01,
284 5.6234132519035e+01, 6.4938163157621e+01,
285 7.4989420933246e+01, 8.6596432336007e+01,
286 1.0000000000000e+02, 1.1547819846895e+02,
287 1.3335214321633e+02, 1.5399265260595e+02,
288 1.7782794100389e+02, 2.0535250264571e+02,
289 2.3713737056617e+02, 2.7384196342644e+02,
290 3.1622776601684e+02, 3.6517412725484e+02,
291 4.2169650342858e+02, 4.8696752516586e+02,
292 5.6234132519035e+02, 6.4938163157621e+02,
293 7.4989420933246e+02, 8.6596432336007e+02,
294 1.0000000000000e+03, 1.1547819846895e+03,
295 1.3335214321633e+03, 1.5399265260595e+03,
296 1.7782794100389e+03, 2.0535250264571e+03,
297 2.3713737056617e+03, 2.7384196342644e+03,
298 3.1622776601684e+03, 3.6517412725484e+03,
299 4.2169650342858e+03, 4.8696752516586e+03,
300 5.6234132519035e+03, 6.4938163157621e+03,
301 7.4989420933246e+03, 8.6596432336007e+03,
302 1.0000000000000e+04, 1.1547819846895e+04,
303 1.3335214321633e+04, 1.5399265260595e+04,
304 1.7782794100389e+04, 2.0535250264571e+04,
305 2.3713737056617e+04, 2.7384196342644e+04,
306 3.1622776601684e+04, 3.6517412725484e+04,
307 4.2169650342858e+04, 4.8696752516586e+04,
308 5.6234132519035e+04, 6.4938163157621e+04,
309 7.4989420933246e+04, 8.6596432336007e+04,
310 1.0000000000000e+05, 1.1547819846895e+05,
311 1.3335214321633e+05, 1.5399265260595e+05,
312 1.7782794100389e+05, 2.0535250264571e+05,
313 2.3713737056617e+05, 2.7384196342644e+05,
314 3.1622776601684e+05, 3.6517412725484e+05,
315 4.2169650342858e+05, 4.8696752516586e+05,
316 5.6234132519035e+05, 6.4938163157621e+05,
317 7.4989420933246e+05, 8.6596432336007e+05,
325 int last_exp, n, code;
328 uint32_t *q, *q_end, iv;
329 const float *ptab = pow_tab + 60;
330 const uint32_t *iptab = (
const uint32_t*)ptab;
339 iv = iptab[last_exp];
347 }
while ((n -= 4) > 0);
358 last_exp += code - 60;
365 iv = iptab[last_exp];
374 }
while ((n -= 4) > 0);
390 int block_len, bsize, n;
408 memcpy(out+n+block_len, in+n+block_len, n*
sizeof(
float));
426 memcpy(out, in, n*
sizeof(
float));
430 memset(out+n+block_len, 0, n*
sizeof(
float));
441 int n,
v,
a, ch, bsize;
442 int coef_nb_bits, total_gain;
549 val = (int)0x80000000;
552 if (val == (
int)0x80000000) {
597 0, ptr, 0, nb_coefs[ch],
608 mdct_norm = 1.0 / (float)n4;
610 mdct_norm *= sqrt(n4);
618 float *coefs, *exponents,
mult, mult1,
noise;
619 int i, j, n, n1, last_high_band, esize;
625 mult = pow(10, total_gain * 0.05) / s->
max_exponent[ch];
627 coefs = s->
coefs[ch];
633 exponents[i<<bsize>>esize] * mult1;
649 for(i = 0;i < n; i++) {
650 v = exponents[i<<bsize>>esize];
653 exp_power[j] = e2 / n;
655 tprintf(s->
avctx,
"%d: power=%f (%d)\n", j, exp_power[j], n);
657 exponents += n<<bsize>>esize;
672 mult1 = sqrt(exp_power[j] / exp_power[last_high_band]);
677 for(i = 0;i < n; i++) {
681 exponents[i<<bsize>>esize] * mult1;
683 exponents += n<<bsize>>esize;
686 for(i = 0;i < n; i++) {
689 *coefs++ = ((*coefs1++) + noise) *
690 exponents[i<<bsize>>esize] *
mult;
692 exponents += n<<bsize>>esize;
698 mult1 = mult * exponents[((-1<<bsize))>>esize];
699 for(i = 0; i < n; i++) {
708 for(i = 0;i < n; i++) {
709 *coefs++ = coefs1[i] * exponents[i<<bsize>>esize] *
mult;
712 for(i = 0;i < n; i++)
769 int ret, n, ch, incr;
793 for (ch = 0; ch < incr; ch++) {
799 dump_shorts(s,
"samples", samples, n * s->
nb_channels);
805 int *got_frame_ptr,
AVPacket *avpkt)
807 const uint8_t *buf = avpkt->
data;
808 int buf_size = avpkt->
size;
810 int nb_frames, bit_offset, i, pos,
len, ret;
814 tprintf(avctx,
"***decode_superframe:\n");
820 if (buf_size < s->block_align) {
822 "Input packet size too small (%d < %d)\n",
850 "Invalid last frame bit offset %d > buf size %d (%d)\n",
895 for(i=0;i<nb_frames;i++) {
905 len = buf_size - pos;