hvirtual/quicktime/ffmpeg/libavcodec/liba52/a52.h File Reference

#include "../avcodec.h"

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Defines
#define	A52_CHANNEL   0
#define	A52_MONO   1
#define	A52_STEREO   2
#define	A52_3F   3
#define	A52_2F1R   4
#define	A52_3F1R   5
#define	A52_2F2R   6
#define	A52_3F2R   7
#define	A52_CHANNEL1   8
#define	A52_CHANNEL2   9
#define	A52_DOLBY   10
#define	A52_CHANNEL_MASK   15
#define	A52_LFE   16
#define	A52_ADJUST_LEVEL   32
Typedefs
typedef float	sample_t
typedef float	level_t
typedef struct a52_state_s	a52_state_t
Functions
a52_state_t *	a52_init (uint32_t mm_accel)
sample_t *	a52_samples (a52_state_t *state)
int	a52_syncinfo (uint8_t *buf, int *flags, int *sample_rate, int *bit_rate)
int	a52_frame (a52_state_t *state, uint8_t *buf, int *flags, level_t *level, sample_t bias)
void	a52_dynrng (a52_state_t *state, level_t(*call)(level_t, void *), void *data)
int	a52_block (a52_state_t *state)
void	a52_free (a52_state_t *state)

---

Define Documentation

#define A52_2F1R   4

Definition at line 50 of file a52.h.

Referenced by a52_downmix(), a52_downmix_coeff(), a52_downmix_init(), a52_upmix(), and mpeg3_ac3_header().

#define A52_2F2R   6

Definition at line 52 of file a52.h.

Referenced by a52_downmix(), a52_downmix_coeff(), a52_downmix_init(), a52_resample_C(), a52_resample_MMX(), a52_upmix(), and mpeg3_ac3_header().

#define A52_3F   3

Definition at line 49 of file a52.h.

Referenced by a52_downmix(), a52_downmix_coeff(), a52_downmix_init(), a52_resample_C(), a52_resample_MMX(), a52_upmix(), mpeg3_ac3_header(), and mpeg3audio_doac3().

#define A52_3F1R   5

Definition at line 51 of file a52.h.

Referenced by a52_downmix(), a52_downmix_coeff(), a52_downmix_init(), a52_upmix(), mpeg3_ac3_header(), and mpeg3audio_doac3().

#define A52_3F2R   7

Definition at line 53 of file a52.h.

Referenced by a52_downmix(), a52_downmix_coeff(), a52_downmix_init(), a52_resample_C(), a52_resample_MMX(), a52_upmix(), mpeg3_ac3_header(), and mpeg3audio_doac3().

#define A52_ADJUST_LEVEL   32

Definition at line 60 of file a52.h.

Referenced by a52_decode_frame(), and a52_downmix_init().

#define A52_CHANNEL   0

Definition at line 46 of file a52.h.

Referenced by a52_downmix(), a52_downmix_coeff(), a52_downmix_init(), a52_resample_C(), a52_resample_MMX(), a52_upmix(), and mpeg3_ac3_header().

#define A52_CHANNEL1   8

Definition at line 54 of file a52.h.

Referenced by a52_downmix_coeff(), and a52_downmix_init().

#define A52_CHANNEL2   9

Definition at line 55 of file a52.h.

Referenced by a52_downmix(), a52_downmix_coeff(), a52_downmix_init(), and a52_upmix().

#define A52_CHANNEL_MASK   15

Definition at line 57 of file a52.h.

Referenced by a52_block(), a52_downmix(), a52_downmix_coeff(), a52_downmix_init(), a52_upmix(), mpeg3_ac3_header(), and mpeg3audio_doac3().

#define A52_DOLBY   10

Definition at line 56 of file a52.h.

Referenced by a52_downmix(), a52_downmix_coeff(), a52_downmix_init(), a52_frame(), a52_resample_C(), a52_resample_MMX(), a52_syncinfo(), a52_upmix(), and mpeg3_ac3_header().

#define A52_LFE   16

Definition at line 59 of file a52.h.

Referenced by a52_block(), a52_decode_frame(), a52_frame(), a52_resample_C(), a52_resample_MMX(), a52_syncinfo(), mpeg3_ac3_header(), and mpeg3audio_doac3().

#define A52_MONO   1

Definition at line 47 of file a52.h.

Referenced by a52_decode_frame(), a52_downmix(), a52_downmix_coeff(), a52_downmix_init(), a52_resample_C(), a52_resample_MMX(), a52_upmix(), and mpeg3_ac3_header().

#define A52_STEREO   2

Definition at line 48 of file a52.h.

Referenced by a52_decode_frame(), a52_downmix(), a52_downmix_coeff(), a52_downmix_init(), a52_resample_C(), a52_resample_MMX(), a52_upmix(), and mpeg3_ac3_header().

---

Typedef Documentation

typedef struct a52_state_s a52_state_t

Definition at line 44 of file a52.h.

typedef float level_t

Definition at line 41 of file a52.h.

typedef float sample_t

Definition at line 40 of file a52.h.

---

Function Documentation

int a52_block

(

a52_state_t *

state

)

Definition at line 551 of file parse.c.

References a52_bit_allocate(), A52_CHANNEL_MASK, a52_downmix(), a52_downmix_coeff(), a52_imdct_256(), a52_imdct_512(), A52_LFE, a52_upmix(), a52_state_s::acmod, a52_state_s::ba, ba_t::bai, a52_state_s::bai, expbap_t::bap, a52_state_s::bias, bitstream_get(), bitstream_get_2(), bndtab, a52_state_s::chincpl, a52_state_s::clev, coeff_get(), coeff_get_coupling(), a52_state_s::cpl_expbap, a52_state_s::cplba, a52_state_s::cplbndstrc, a52_state_s::cplco, a52_state_s::cplendmant, a52_state_s::cplfleak, a52_state_s::cplsleak, a52_state_s::cplstrtbnd, a52_state_s::cplstrtmant, a52_state_s::csnroffst, DELTA_BIT_NEW, DELTA_BIT_NONE, ba_t::deltba, ba_t::deltbae, a52_state_s::downmixed, a52_state_s::dynrng, a52_state_s::dynrngcall, a52_state_s::dynrngdata, a52_state_s::dynrnge, a52_state_s::endmant, expbap_t::exp, EXP_REUSE, a52_state_s::fbw_expbap, a52_state_s::level, a52_state_s::lfe_expbap, a52_state_s::lfeba, a52_state_s::lfeon, MUL_L, a52_state_s::ncplbnd, a52_state_s::output, parse_deltba(), parse_exponents(), a52_state_s::phsflginu, quantizer_set_t::q1_ptr, quantizer_set_t::q2_ptr, quantizer_set_t::q4_ptr, quant(), a52_state_s::rematflg, a52_state_s::samples, samples, scale_factor, a52_state_s::slev, and zero_snr_offsets().

Referenced by a52_decode_init(), and mpeg3audio_doac3().

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void a52_dynrng	(	a52_state_t *	state,
		level_t(*)(level_t, void *)	call,
		void *	data
	)

Definition at line 200 of file parse.c.

References a52_state_s::dynrngcall, a52_state_s::dynrngdata, and a52_state_s::dynrnge.

Referenced by mpeg3audio_doac3().

int a52_frame	(	a52_state_t *	state,
		uint8_t *	buf,
		int *	flags,
		level_t *	level,
		sample_t	bias
	)

Definition at line 124 of file parse.c.

References a52_bitstream_set_ptr(), A52_DOLBY, a52_downmix_init(), A52_LFE, a52_state_s::acmod, a52_state_s::ba, a52_state_s::bias, bitstream_get(), a52_state_s::clev, a52_state_s::cplba, DELTA_BIT_NONE, ba_t::deltbae, a52_state_s::dynrng, a52_state_s::dynrngcall, a52_state_s::dynrnge, a52_state_s::fscod, halfrate, a52_state_s::halfrate, a52_state_s::level, LEVEL, LEVEL_3DB, LEVEL_45DB, LEVEL_6DB, a52_state_s::lfeon, MUL_C, NULL, a52_state_s::output, and a52_state_s::slev.

Referenced by a52_decode_init(), and mpeg3audio_doac3().

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void a52_free

(

a52_state_t *

state

)

Definition at line 935 of file parse.c.

References a52_state_s::samples.

Referenced by a52_decode_init(), and mpeg3_delete_ac3().

a52_state_t* a52_init

(

uint32_t

mm_accel

)

Definition at line 47 of file parse.c.

References a52_imdct_init(), a52_state_s::downmixed, a52_state_s::lfsr_state, memalign, NULL, and a52_state_s::samples.

Referenced by a52_decode_init(), and mpeg3_new_ac3().

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sample_t* a52_samples

(

a52_state_t *

state

)

Definition at line 74 of file parse.c.

References a52_state_s::samples.

Referenced by a52_decode_init(), and mpeg3_new_ac3().

int a52_syncinfo	(	uint8_t *	buf,
		int *	flags,
		int *	sample_rate,
		int *	bit_rate
	)

Definition at line 79 of file parse.c.

References A52_DOLBY, A52_LFE, bitrate, and halfrate.

Referenced by a52_decode_init(), mpeg3_ac3_check(), and mpeg3_ac3_header().