Showing the changes to libavcodec (2 of 2 files). Show all
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| @@ -3377,3 +3377,28 @@ const DECLARE_ALIGNED(32, int, ff_aac_eld_window_480_fixed)[1800] = { · 3376 unmodified lines | ||
| 3377 | 3377 | 0xffecff1c, 0xffed391e, 0xffed740c, 0xffedafb1, |
| 3378 | 3378 | 0xffedebe1, 0xffee287d, 0xffee654e, 0xffeea23f, |
| 3379 | 3379 | }; |
| 3380 | + | |
| 3381 | +/* As specified by ISO/IEC 23003 */ | |
| 3382 | +#define USAC_EMPH_COEFF 0.68 | |
| 3383 | + | |
| 3384 | +DECLARE_ALIGNED(16, const float, ff_aac_deemph_weights)[16] = { | |
| 3385 | + USAC_EMPH_COEFF, | |
| 3386 | + USAC_EMPH_COEFF*USAC_EMPH_COEFF, | |
| 3387 | + USAC_EMPH_COEFF*USAC_EMPH_COEFF*USAC_EMPH_COEFF, | |
| 3388 | + USAC_EMPH_COEFF*USAC_EMPH_COEFF*USAC_EMPH_COEFF*USAC_EMPH_COEFF, | |
| 3389 | + | |
| 3390 | + 0, | |
| 3391 | + USAC_EMPH_COEFF, | |
| 3392 | + USAC_EMPH_COEFF*USAC_EMPH_COEFF, | |
| 3393 | + USAC_EMPH_COEFF*USAC_EMPH_COEFF*USAC_EMPH_COEFF, | |
| 3394 | + | |
| 3395 | + 0, | |
| 3396 | + 0, | |
| 3397 | + USAC_EMPH_COEFF, | |
| 3398 | + USAC_EMPH_COEFF*USAC_EMPH_COEFF, | |
| 3399 | + | |
| 3400 | + 0, | |
| 3401 | + 0, | |
| 3402 | + 0, | |
| 3403 | + USAC_EMPH_COEFF, | |
| 3404 | +}; | |
| @@ -64,6 +64,8 @@ DECLARE_ALIGNED(32, extern const float, ff_aac_eld_window_480)[1800]; · 63 unmodified lines | ||
| 64 | 64 | DECLARE_ALIGNED(32, extern const int, ff_aac_eld_window_480_fixed)[1800]; |
| 65 | 65 | // @} |
| 66 | 66 | |
| 67 | +extern const float ff_aac_deemph_weights[16]; | |
| 68 | + | |
| 67 | 69 | /* Initializes data shared between float decoder and encoder. */ |
| 68 | 70 | void ff_aac_float_common_init(void); |
| 69 | 71 | |