#define MAC_COEF(d,a,b) ((d)+=(a)*(b))
#define COEF_MIN (-16777215.0/16777216.0)
#define COEF_MAX ( 16777215.0/16777216.0)
+#define NEW_CPL_COORD_THRESHOLD 0.03
typedef float SampleType;
typedef float CoefType;
typedef float CoefSumType;
#define MAC_COEF(d,a,b) MAC64(d,a,b)
#define COEF_MIN -16777215
#define COEF_MAX 16777215
+#define NEW_CPL_COORD_THRESHOLD 503317
typedef int16_t SampleType;
typedef int32_t CoefType;
typedef int64_t CoefSumType;
#endif
+/* common option values */
+#define AC3ENC_OPT_NONE -1
+#define AC3ENC_OPT_AUTO -1
+#define AC3ENC_OPT_OFF 0
+#define AC3ENC_OPT_ON 1
+#define AC3ENC_OPT_NOT_INDICATED 0
+#define AC3ENC_OPT_MODE_ON 2
+#define AC3ENC_OPT_MODE_OFF 1
+
+/* specific option values */
+#define AC3ENC_OPT_LARGE_ROOM 1
+#define AC3ENC_OPT_SMALL_ROOM 2
+#define AC3ENC_OPT_DOWNMIX_LTRT 1
+#define AC3ENC_OPT_DOWNMIX_LORO 2
+#define AC3ENC_OPT_ADCONV_STANDARD 0
+#define AC3ENC_OPT_ADCONV_HDCD 1
+
-#if 0
/**
* Encoding Options used by AVOption.
*/
int channel_coupling;
int cpl_start;
} AC3EncOptions;
-#endif
+
/**
* Data for a single audio block.
*/
int cpl_in_use; ///< coupling in use for this block (cplinu)
uint8_t channel_in_cpl[AC3_MAX_CHANNELS]; ///< channel in coupling (chincpl)
int num_cpl_channels; ///< number of channels in coupling
- uint8_t new_cpl_coords; ///< send new coupling coordinates (cplcoe)
+ uint8_t new_cpl_coords[AC3_MAX_CHANNELS]; ///< send new coupling coordinates (cplcoe)
uint8_t cpl_master_exp[AC3_MAX_CHANNELS]; ///< coupling coord master exponents (mstrcplco)
int new_snr_offsets; ///< send new SNR offsets
int new_cpl_leak; ///< send new coupling leak info
} AC3EncodeContext;
+extern const int64_t ff_ac3_channel_layouts[19];
+
int ff_ac3_encode_init(AVCodecContext *avctx);
int ff_ac3_encode_close(AVCodecContext *avctx);
int ff_ac3_compute_bit_allocation(AC3EncodeContext *s);
+void ff_ac3_group_exponents(AC3EncodeContext *s);
+
void ff_ac3_quantize_mantissas(AC3EncodeContext *s);
void ff_ac3_output_frame(AC3EncodeContext *s, unsigned char *frame);