#define AVCODEC_AC3ENC_H
#include <stdint.h>
+
+#include "libavutil/float_dsp.h"
#include "ac3.h"
#include "ac3dsp.h"
#include "avcodec.h"
#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
-typedef struct AC3MDCTContext {
- const SampleType *window; ///< MDCT window function
- FFTContext fft; ///< FFT context for MDCT calculation
-} AC3MDCTContext;
/**
* Encoding Options used by AVOption.
int dolby_surround_ex_mode;
int dolby_headphone_mode;
int ad_converter_type;
+ int eac3_mixing_metadata;
+ int eac3_info_metadata;
/* other encoding options */
int allow_per_frame_metadata;
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
AVCodecContext *avctx; ///< parent AVCodecContext
PutBitContext pb; ///< bitstream writer context
DSPContext dsp;
+ AVFloatDSPContext fdsp;
AC3DSPContext ac3dsp; ///< AC-3 optimized functions
- AC3MDCTContext *mdct; ///< MDCT context
+ FFTContext mdct; ///< FFT context for MDCT calculation
+ const SampleType *mdct_window; ///< MDCT window function array
AC3Block blocks[AC3_MAX_BLOCKS]; ///< per-block info
int bit_rate; ///< target bit rate, in bits-per-second
int sample_rate; ///< sampling frequency, in Hz
+ int num_blks_code; ///< number of blocks code (numblkscod)
+ int num_blocks; ///< number of blocks per frame
int frame_size_min; ///< minimum frame size in case rounding is necessary
int frame_size; ///< current frame size in bytes
int frame_size_code; ///< frame size code (frmsizecod)
uint8_t *cpl_coord_mant_buffer;
uint8_t exp_strategy[AC3_MAX_CHANNELS][AC3_MAX_BLOCKS]; ///< exponent strategies
+ uint8_t frame_exp_strategy[AC3_MAX_CHANNELS]; ///< frame exp strategy index
+ int use_frame_exp_strategy; ///< indicates use of frame exp strategy
uint8_t exp_ref_block[AC3_MAX_CHANNELS][AC3_MAX_BLOCKS]; ///< reference blocks for EXP_REUSE
uint8_t *ref_bap [AC3_MAX_CHANNELS][AC3_MAX_BLOCKS]; ///< bit allocation pointers (bap)
int ref_bap_set; ///< indicates if ref_bap pointers have been set
/* fixed vs. float function pointers */
- void (*mdct_end)(AC3MDCTContext *mdct);
- int (*mdct_init)(AVCodecContext *avctx, AC3MDCTContext *mdct, int nbits);
+ void (*mdct_end)(struct AC3EncodeContext *s);
+ int (*mdct_init)(struct AC3EncodeContext *s);
/* fixed vs. float templated function pointers */
int (*allocate_sample_buffers)(struct AC3EncodeContext *s);
} AC3EncodeContext;
-extern const int64_t ff_ac3_channel_layouts[19];
+extern const uint64_t ff_ac3_channel_layouts[19];
int ff_ac3_encode_init(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);
/* prototypes for functions in ac3enc_fixed.c and ac3enc_float.c */
-void ff_ac3_fixed_mdct_end(AC3MDCTContext *mdct);
-void ff_ac3_float_mdct_end(AC3MDCTContext *mdct);
+void ff_ac3_fixed_mdct_end(AC3EncodeContext *s);
+void ff_ac3_float_mdct_end(AC3EncodeContext *s);
-int ff_ac3_fixed_mdct_init(AVCodecContext *avctx, AC3MDCTContext *mdct,
- int nbits);
-int ff_ac3_float_mdct_init(AVCodecContext *avctx, AC3MDCTContext *mdct,
- int nbits);
+int ff_ac3_fixed_mdct_init(AC3EncodeContext *s);
+int ff_ac3_float_mdct_init(AC3EncodeContext *s);
/* prototypes for functions in ac3enc_template.c */
int ff_ac3_fixed_allocate_sample_buffers(AC3EncodeContext *s);
int ff_ac3_float_allocate_sample_buffers(AC3EncodeContext *s);
-int ff_ac3_fixed_encode_frame(AVCodecContext *avctx, unsigned char *frame,
- int buf_size, void *data);
-int ff_ac3_float_encode_frame(AVCodecContext *avctx, unsigned char *frame,
- int buf_size, void *data);
+int ff_ac3_fixed_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+ const AVFrame *frame, int *got_packet_ptr);
+int ff_ac3_float_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+ const AVFrame *frame, int *got_packet_ptr);
#endif /* AVCODEC_AC3ENC_H */
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