Unified · Split
| @@ -269,190 +269,190 @@ static inline int l3_unscale(int value, int exponent) · 268 unmodified lines | |||
| 269 | static void decode_init_static(AVCodec *codec) | 269 | static void decode_init_static(AVCodec *codec) |
| 270 | { | 270 | { |
| 271 | int i, j, k; | 271 | int i, j, k; |
| 272 | int offset; | 272 | int offset; |
| 273 | 273 | ||
| 274 | /* scale factors table for layer 1/2 */ | 274 | /* scale factors table for layer 1/2 */ |
| 275 | for (i = 0; i < 64; i++) { | 275 | for (i = 0; i < 64; i++) { |
| 276 | int shift, mod; | 276 | int shift, mod; |
| 277 | /* 1.0 (i = 3) is normalized to 2 ^ FRAC_BITS */ | 277 | /* 1.0 (i = 3) is normalized to 2 ^ FRAC_BITS */ |
| 278 | shift = i / 3; | 278 | shift = i / 3; |
| 279 | mod = i % 3; | 279 | mod = i % 3; |
| 280 | scale_factor_modshift[i] = mod | (shift << 2); | 280 | scale_factor_modshift[i] = mod | (shift << 2); |
| 281 | } | 281 | } |
| 282 | 282 | ||
| 283 | /* scale factor multiply for layer 1 */ | 283 | /* scale factor multiply for layer 1 */ |
| 284 | for (i = 0; i < 15; i++) { | 284 | for (i = 0; i < 15; i++) { |
| 285 | int n, norm; | 285 | int n, norm; |
| 286 | n = i + 2; | 286 | n = i + 2; |
| 287 | norm = ((INT64_C(1) << n) * FRAC_ONE) / ((1 << n) - 1); | 287 | norm = ((INT64_C(1) << n) * FRAC_ONE) / ((1 << n) - 1); |
| 288 | scale_factor_mult[i][0] = MULLx(norm, FIXR(1.0 * 2.0), FRAC_BITS); | 288 | scale_factor_mult[i][0] = MULLx(norm, FIXR(1.0 * 2.0), FRAC_BITS); |
| 289 | scale_factor_mult[i][1] = MULLx(norm, FIXR(0.7937005259 * 2.0), FRAC_BITS); | 289 | scale_factor_mult[i][1] = MULLx(norm, FIXR(0.7937005259 * 2.0), FRAC_BITS); |
| 290 | scale_factor_mult[i][2] = MULLx(norm, FIXR(0.6299605249 * 2.0), FRAC_BITS); | 290 | scale_factor_mult[i][2] = MULLx(norm, FIXR(0.6299605249 * 2.0), FRAC_BITS); |
| 291 | av_dlog(avctx, "%d: norm=%x s=%x %x %x\n", i, norm, | 291 | av_dlog(avctx, "%d: norm=%x s=%x %x %x\n", i, norm, |
| 292 | scale_factor_mult[i][0], | 292 | scale_factor_mult[i][0], |
| 293 | scale_factor_mult[i][1], | 293 | scale_factor_mult[i][1], |
| 294 | scale_factor_mult[i][2]); | 294 | scale_factor_mult[i][2]); |
| 295 | } | 295 | } |
| 296 | 296 | ||
| 297 | RENAME(ff_mpa_synth_init)(RENAME(ff_mpa_synth_window)); | 297 | RENAME(ff_mpa_synth_init)(RENAME(ff_mpa_synth_window)); |
| 298 | 298 | ||
| 299 | /* huffman decode tables */ | 299 | /* huffman decode tables */ |
| 300 | offset = 0; | 300 | offset = 0; |
| 301 | for (i = 1; i < 16; i++) { | 301 | for (i = 1; i < 16; i++) { |
| 302 | const HuffTable *h = &mpa_huff_tables[i]; | 302 | const HuffTable *h = &mpa_huff_tables[i]; |
| 303 | int xsize, x, y; | 303 | int xsize, x, y; |
| 304 | uint8_t tmp_bits [512]; | 304 | uint8_t tmp_bits [512]; |
| 305 | uint16_t tmp_codes[512]; | 305 | uint16_t tmp_codes[512]; |
| 306 | 306 | ||
| 307 | memset(tmp_bits , 0, sizeof(tmp_bits )); | 307 | memset(tmp_bits , 0, sizeof(tmp_bits )); |
| 308 | memset(tmp_codes, 0, sizeof(tmp_codes)); | 308 | memset(tmp_codes, 0, sizeof(tmp_codes)); |
| 309 | 309 | ||
| 310 | xsize = h->xsize; | 310 | xsize = h->xsize; |
| 311 | 311 | ||
| 312 | j = 0; | 312 | j = 0; |
| 313 | for (x = 0; x < xsize; x++) { | 313 | for (x = 0; x < xsize; x++) { |
| 314 | for (y = 0; y < xsize; y++) { | 314 | for (y = 0; y < xsize; y++) { |
| 315 | tmp_bits [(x << 5) | y | ((x&&y)<<4)]= h->bits [j ]; | 315 | tmp_bits [(x << 5) | y | ((x&&y)<<4)]= h->bits [j ]; |
| 316 | tmp_codes[(x << 5) | y | ((x&&y)<<4)]= h->codes[j++]; | 316 | tmp_codes[(x << 5) | y | ((x&&y)<<4)]= h->codes[j++]; |
| 317 | } | ||
| 318 | } | 317 | } |
| 319 | |||
| 320 | /* XXX: fail test */ | ||
| 321 | huff_vlc[i].table = huff_vlc_tables+offset; | ||
| 322 | huff_vlc[i].table_allocated = huff_vlc_tables_sizes[i]; | ||
| 323 | init_vlc(&huff_vlc[i], 7, 512, | ||
| 324 | tmp_bits, 1, 1, tmp_codes, 2, 2, | ||
| 325 | INIT_VLC_USE_NEW_STATIC); | ||
| 326 | offset += huff_vlc_tables_sizes[i]; | ||
| 327 | } | 318 | } |
| 328 | assert(offset == FF_ARRAY_ELEMS(huff_vlc_tables)); | ||
| 329 | |||
| 330 | offset = 0; | ||
| 331 | for (i = 0; i < 2; i++) { | ||
| 332 | huff_quad_vlc[i].table = huff_quad_vlc_tables+offset; | ||
| 333 | huff_quad_vlc[i].table_allocated = huff_quad_vlc_tables_sizes[i]; | ||
| 334 | init_vlc(&huff_quad_vlc[i], i == 0 ? 7 : 4, 16, | ||
| 335 | mpa_quad_bits[i], 1, 1, mpa_quad_codes[i], 1, 1, | ||
| 336 | INIT_VLC_USE_NEW_STATIC); | ||
| 337 | offset += huff_quad_vlc_tables_sizes[i]; | ||
| 338 | } | ||
| 339 | assert(offset == FF_ARRAY_ELEMS(huff_quad_vlc_tables)); | ||
| 340 | 319 | ||
| 341 | for (i = 0; i < 9; i++) { | 320 | /* XXX: fail test */ |
| 342 | k = 0; | 321 | huff_vlc[i].table = huff_vlc_tables+offset; |
| 343 | for (j = 0; j < 22; j++) { | 322 | huff_vlc[i].table_allocated = huff_vlc_tables_sizes[i]; |
| 344 | band_index_long[i][j] = k; | 323 | init_vlc(&huff_vlc[i], 7, 512, |
| 345 | k += band_size_long[i][j]; | 324 | tmp_bits, 1, 1, tmp_codes, 2, 2, |
| 346 | } | 325 | INIT_VLC_USE_NEW_STATIC); |
| 347 | band_index_long[i][22] = k; | 326 | offset += huff_vlc_tables_sizes[i]; |
| 327 | } | ||
| 328 | assert(offset == FF_ARRAY_ELEMS(huff_vlc_tables)); | ||
| 329 | |||
| 330 | offset = 0; | ||
| 331 | for (i = 0; i < 2; i++) { | ||
| 332 | huff_quad_vlc[i].table = huff_quad_vlc_tables+offset; | ||
| 333 | huff_quad_vlc[i].table_allocated = huff_quad_vlc_tables_sizes[i]; | ||
| 334 | init_vlc(&huff_quad_vlc[i], i == 0 ? 7 : 4, 16, | ||
| 335 | mpa_quad_bits[i], 1, 1, mpa_quad_codes[i], 1, 1, | ||
| 336 | INIT_VLC_USE_NEW_STATIC); | ||
| 337 | offset += huff_quad_vlc_tables_sizes[i]; | ||
| 338 | } | ||
| 339 | assert(offset == FF_ARRAY_ELEMS(huff_quad_vlc_tables)); | ||
| 340 | |||
| 341 | for (i = 0; i < 9; i++) { | ||
| 342 | k = 0; | ||
| 343 | for (j = 0; j < 22; j++) { | ||
| 344 | band_index_long[i][j] = k; | ||
| 345 | k += band_size_long[i][j]; | ||
| 348 | } | 346 | } |
| 347 | band_index_long[i][22] = k; | ||
| 348 | } | ||
| 349 | 349 | ||
| 350 | /* compute n ^ (4/3) and store it in mantissa/exp format */ | 350 | /* compute n ^ (4/3) and store it in mantissa/exp format */ |
| 351 | 351 | ||
| 352 | mpegaudio_tableinit(); | 352 | mpegaudio_tableinit(); |
| 353 | 353 | ||
| 354 | for (i = 0; i < 4; i++) { | 354 | for (i = 0; i < 4; i++) { |
| 355 | if (ff_mpa_quant_bits[i] < 0) { | 355 | if (ff_mpa_quant_bits[i] < 0) { |
| 356 | for (j = 0; j < (1 << (-ff_mpa_quant_bits[i]+1)); j++) { | 356 | for (j = 0; j < (1 << (-ff_mpa_quant_bits[i]+1)); j++) { |
| 357 | int val1, val2, val3, steps; | 357 | int val1, val2, val3, steps; |
| 358 | int val = j; | 358 | int val = j; |
| 359 | steps = ff_mpa_quant_steps[i]; | 359 | steps = ff_mpa_quant_steps[i]; |
| 360 | val1 = val % steps; | 360 | val1 = val % steps; |
| 361 | val /= steps; | 361 | val /= steps; |
| 362 | val2 = val % steps; | 362 | val2 = val % steps; |
| 363 | val3 = val / steps; | 363 | val3 = val / steps; |
| 364 | division_tabs[i][j] = val1 + (val2 << 4) + (val3 << 8); | 364 | division_tabs[i][j] = val1 + (val2 << 4) + (val3 << 8); |
| 365 | } | ||
| 366 | } | 365 | } |
| 367 | } | 366 | } |
| 367 | } | ||
| 368 | 368 | ||
| 369 | 369 | ||
| 370 | for (i = 0; i < 7; i++) { | 370 | for (i = 0; i < 7; i++) { |
| 371 | float f; | 371 | float f; |
| 372 | INTFLOAT v; | 372 | INTFLOAT v; |
| 373 | if (i != 6) { | 373 | if (i != 6) { |
| 374 | f = tan((double)i * M_PI / 12.0); | 374 | f = tan((double)i * M_PI / 12.0); |
| 375 | v = FIXR(f / (1.0 + f)); | 375 | v = FIXR(f / (1.0 + f)); |
| 376 | } else { | 376 | } else { |
| 377 | v = FIXR(1.0); | 377 | v = FIXR(1.0); |
| 378 | } | ||
| 379 | is_table[0][ i] = v; | ||
| 380 | is_table[1][6 - i] = v; | ||
| 381 | } | 378 | } |
| 382 | /* invalid values */ | 379 | is_table[0][ i] = v; |
| 383 | for (i = 7; i < 16; i++) | 380 | is_table[1][6 - i] = v; |
| 384 | is_table[0][i] = is_table[1][i] = 0.0; | 381 | } |
| 385 | 382 | /* invalid values */ | |
| 386 | for (i = 0; i < 16; i++) { | 383 | for (i = 7; i < 16; i++) |
| 387 | double f; | 384 | is_table[0][i] = is_table[1][i] = 0.0; |
| 388 | int e, k; | 385 | |
| 389 | 386 | for (i = 0; i < 16; i++) { | |
| 390 | for (j = 0; j < 2; j++) { | 387 | double f; |
| 391 | e = -(j + 1) * ((i + 1) >> 1); | 388 | int e, k; |
| 392 | f = pow(2.0, e / 4.0); | 389 | |
| 393 | k = i & 1; | 390 | for (j = 0; j < 2; j++) { |
| 394 | is_table_lsf[j][k ^ 1][i] = FIXR(f); | 391 | e = -(j + 1) * ((i + 1) >> 1); |
| 395 | is_table_lsf[j][k ][i] = FIXR(1.0); | 392 | f = pow(2.0, e / 4.0); |
| 396 | av_dlog(avctx, "is_table_lsf %d %d: %f %f\n", | 393 | k = i & 1; |
| 397 | i, j, (float) is_table_lsf[j][0][i], | 394 | is_table_lsf[j][k ^ 1][i] = FIXR(f); |
| 398 | (float) is_table_lsf[j][1][i]); | 395 | is_table_lsf[j][k ][i] = FIXR(1.0); |
| 399 | } | 396 | av_dlog(avctx, "is_table_lsf %d %d: %f %f\n", |
| 397 | i, j, (float) is_table_lsf[j][0][i], | ||
| 398 | (float) is_table_lsf[j][1][i]); | ||
| 400 | } | 399 | } |
| 400 | } | ||
| 401 | 401 | ||
| 402 | for (i = 0; i < 8; i++) { | 402 | for (i = 0; i < 8; i++) { |
| 403 | float ci, cs, ca; | 403 | float ci, cs, ca; |
| 404 | ci = ci_table[i]; | 404 | ci = ci_table[i]; |
| 405 | cs = 1.0 / sqrt(1.0 + ci * ci); | 405 | cs = 1.0 / sqrt(1.0 + ci * ci); |
| 406 | ca = cs * ci; | 406 | ca = cs * ci; |
| 407 | #if !CONFIG_FLOAT | 407 | #if !CONFIG_FLOAT |
| 408 | csa_table[i][0] = FIXHR(cs/4); | 408 | csa_table[i][0] = FIXHR(cs/4); |
| 409 | csa_table[i][1] = FIXHR(ca/4); | 409 | csa_table[i][1] = FIXHR(ca/4); |
| 410 | csa_table[i][2] = FIXHR(ca/4) + FIXHR(cs/4); | 410 | csa_table[i][2] = FIXHR(ca/4) + FIXHR(cs/4); |
| 411 | csa_table[i][3] = FIXHR(ca/4) - FIXHR(cs/4); | 411 | csa_table[i][3] = FIXHR(ca/4) - FIXHR(cs/4); |
| 412 | #else | 412 | #else |
| 413 | csa_table[i][0] = cs; | 413 | csa_table[i][0] = cs; |
| 414 | csa_table[i][1] = ca; | 414 | csa_table[i][1] = ca; |
| 415 | csa_table[i][2] = ca + cs; | 415 | csa_table[i][2] = ca + cs; |
| 416 | csa_table[i][3] = ca - cs; | 416 | csa_table[i][3] = ca - cs; |
| 417 | #endif | 417 | #endif |
| 418 | } | 418 | } |
| 419 | 419 | ||
| 420 | /* compute mdct windows */ | 420 | /* compute mdct windows */ |
| 421 | for (i = 0; i < 36; i++) { | 421 | for (i = 0; i < 36; i++) { |
| 422 | for (j = 0; j < 4; j++) { | 422 | for (j = 0; j < 4; j++) { |
| 423 | double d; | 423 | double d; |
| 424 | |||
| 425 | if (j == 2 && i % 3 != 1) | ||
| 426 | continue; | ||
| 427 | |||
| 428 | d = sin(M_PI * (i + 0.5) / 36.0); | ||
| 429 | if (j == 1) { | ||
| 430 | if (i >= 30) d = 0; | ||
| 431 | else if (i >= 24) d = sin(M_PI * (i - 18 + 0.5) / 12.0); | ||
| 432 | else if (i >= 18) d = 1; | ||
| 433 | } else if (j == 3) { | ||
| 434 | if (i < 6) d = 0; | ||
| 435 | else if (i < 12) d = sin(M_PI * (i - 6 + 0.5) / 12.0); | ||
| 436 | else if (i < 18) d = 1; | ||
| 437 | } | ||
| 438 | //merge last stage of imdct into the window coefficients | ||
| 439 | d *= 0.5 / cos(M_PI * (2 * i + 19) / 72); | ||
| 440 | 424 | ||
| 441 | if (j == 2) | 425 | if (j == 2 && i % 3 != 1) |
| 442 | mdct_win[j][i/3] = FIXHR((d / (1<<5))); | 426 | continue; |
| 443 | else | 427 | |
| 444 | mdct_win[j][i ] = FIXHR((d / (1<<5))); | 428 | d = sin(M_PI * (i + 0.5) / 36.0); |
| 429 | if (j == 1) { | ||
| 430 | if (i >= 30) d = 0; | ||
| 431 | else if (i >= 24) d = sin(M_PI * (i - 18 + 0.5) / 12.0); | ||
| 432 | else if (i >= 18) d = 1; | ||
| 433 | } else if (j == 3) { | ||
| 434 | if (i < 6) d = 0; | ||
| 435 | else if (i < 12) d = sin(M_PI * (i - 6 + 0.5) / 12.0); | ||
| 436 | else if (i < 18) d = 1; | ||
| 445 | } | 437 | } |
| 438 | //merge last stage of imdct into the window coefficients | ||
| 439 | d *= 0.5 / cos(M_PI * (2 * i + 19) / 72); | ||
| 440 | |||
| 441 | if (j == 2) | ||
| 442 | mdct_win[j][i/3] = FIXHR((d / (1<<5))); | ||
| 443 | else | ||
| 444 | mdct_win[j][i ] = FIXHR((d / (1<<5))); | ||
| 446 | } | 445 | } |
| 446 | } | ||
| 447 | 447 | ||
| 448 | /* NOTE: we do frequency inversion adter the MDCT by changing | 448 | /* NOTE: we do frequency inversion adter the MDCT by changing |
| 449 | the sign of the right window coefs */ | 449 | the sign of the right window coefs */ |
| 450 | for (j = 0; j < 4; j++) { | 450 | for (j = 0; j < 4; j++) { |
| 451 | for (i = 0; i < 36; i += 2) { | 451 | for (i = 0; i < 36; i += 2) { |
| 452 | mdct_win[j + 4][i ] = mdct_win[j][i ]; | 452 | mdct_win[j + 4][i ] = mdct_win[j][i ]; |
| 453 | mdct_win[j + 4][i + 1] = -mdct_win[j][i + 1]; | 453 | mdct_win[j + 4][i + 1] = -mdct_win[j][i + 1]; |
| 454 | } | ||
| 455 | } | 454 | } |
| 455 | } | ||
| 456 | } | 456 | } |
| 457 | 457 | ||
| 458 | static av_cold int decode_init(AVCodecContext * avctx) | 458 | static av_cold int decode_init(AVCodecContext * avctx) |