aactab: add deemphasis tables for USAC

Lynne committed 2 years ago

Commit 7cd8a3f1 parent 0513c5c2 files · +27 −0Browse files

Unified · Split

2 files

@@ -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_COEFFUSAC_EMPH_COEFFUSAC_EMPH_COEFF,
	3388	+ USAC_EMPH_COEFFUSAC_EMPH_COEFFUSAC_EMPH_COEFF*USAC_EMPH_COEFF,
	3389	+
	3390	+ 0,
	3391	+ USAC_EMPH_COEFF,
	3392	+ USAC_EMPH_COEFF*USAC_EMPH_COEFF,
	3393	+ USAC_EMPH_COEFFUSAC_EMPH_COEFFUSAC_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

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