dca_core.h File Reference

#include "libavutil/float_dsp.h"
#include "libavutil/fixed_dsp.h"
#include "libavutil/mem_internal.h"
#include "avcodec.h"
#include "get_bits.h"
#include "dca.h"
#include "dca_exss.h"
#include "dcadsp.h"
#include "dcadct.h"
#include "dcamath.h"
#include "dcahuff.h"
#include "fft.h"
#include "synth_filter.h"

Go to the source code of this file.

Data Structures
struct	DCADSPData
struct	DCACoreDecoder

Macros
#define	DCA_CHANNELS   7
#define	DCA_SUBBANDS   32
#define	DCA_SUBBANDS_X96   64
#define	DCA_SUBFRAMES   16
#define	DCA_SUBBAND_SAMPLES   8
#define	DCA_PCMBLOCK_SAMPLES   32
#define	DCA_LFE_HISTORY   8
#define	DCA_ABITS_MAX   26
#define	DCA_CORE_CHANNELS_MAX   6
#define	DCA_DMIX_CHANNELS_MAX   4
#define	DCA_XXCH_CHANNELS_MAX   2
#define	DCA_EXSS_CHANNELS_MAX   8
#define	DCA_EXSS_CHSETS_MAX   4
#define	DCA_FILTER_MODE_X96   0x01
#define	DCA_FILTER_MODE_FIXED   0x02

Enumerations
enum	DCACoreAudioMode {   DCA_AMODE_MONO, DCA_AMODE_MONO_DUAL, DCA_AMODE_STEREO, DCA_AMODE_STEREO_SUMDIFF,   DCA_AMODE_STEREO_TOTAL, DCA_AMODE_3F, DCA_AMODE_2F1R, DCA_AMODE_3F1R,   DCA_AMODE_2F2R, DCA_AMODE_3F2R, DCA_AMODE_COUNT }
enum	DCACoreExtAudioType { DCA_EXT_AUDIO_XCH = 0, DCA_EXT_AUDIO_X96 = 2, DCA_EXT_AUDIO_XXCH = 6 }
enum	DCACoreLFEFlag { DCA_LFE_FLAG_NONE, DCA_LFE_FLAG_128, DCA_LFE_FLAG_64, DCA_LFE_FLAG_INVALID }

Functions
static int	ff_dca_core_map_spkr (DCACoreDecoder *core, int spkr)
static void	ff_dca_core_dequantize (int32_t *output, const int32_t *input, int32_t step_size, int32_t scale, int residual, int len)
int	ff_dca_core_parse (DCACoreDecoder *s, const uint8_t *data, int size)
int	ff_dca_core_parse_exss (DCACoreDecoder *s, const uint8_t *data, DCAExssAsset *asset)
int	ff_dca_core_filter_fixed (DCACoreDecoder *s, int x96_synth)
int	ff_dca_core_filter_frame (DCACoreDecoder *s, AVFrame *frame)
av_cold void	ff_dca_core_flush (DCACoreDecoder *s)
av_cold int	ff_dca_core_init (DCACoreDecoder *s)
av_cold void	ff_dca_core_close (DCACoreDecoder *s)

Macro Definition Documentation

DCA_CHANNELS

#define DCA_CHANNELS   7

Definition at line 39 of file dca_core.h.

DCA_SUBBANDS

#define DCA_SUBBANDS   32

Definition at line 40 of file dca_core.h.

DCA_SUBBANDS_X96

#define DCA_SUBBANDS_X96   64

Definition at line 41 of file dca_core.h.

DCA_SUBFRAMES

#define DCA_SUBFRAMES   16

Definition at line 42 of file dca_core.h.

DCA_SUBBAND_SAMPLES

#define DCA_SUBBAND_SAMPLES   8

Definition at line 43 of file dca_core.h.

DCA_PCMBLOCK_SAMPLES

#define DCA_PCMBLOCK_SAMPLES   32

Definition at line 44 of file dca_core.h.

DCA_LFE_HISTORY

#define DCA_LFE_HISTORY   8

Definition at line 45 of file dca_core.h.

DCA_ABITS_MAX

#define DCA_ABITS_MAX   26

Definition at line 46 of file dca_core.h.

DCA_CORE_CHANNELS_MAX

#define DCA_CORE_CHANNELS_MAX   6

Definition at line 48 of file dca_core.h.

DCA_DMIX_CHANNELS_MAX

#define DCA_DMIX_CHANNELS_MAX   4

Definition at line 49 of file dca_core.h.

DCA_XXCH_CHANNELS_MAX

#define DCA_XXCH_CHANNELS_MAX   2

Definition at line 50 of file dca_core.h.

DCA_EXSS_CHANNELS_MAX

#define DCA_EXSS_CHANNELS_MAX   8

Definition at line 51 of file dca_core.h.

DCA_EXSS_CHSETS_MAX

#define DCA_EXSS_CHSETS_MAX   4

Definition at line 52 of file dca_core.h.

DCA_FILTER_MODE_X96

#define DCA_FILTER_MODE_X96   0x01

Definition at line 54 of file dca_core.h.

DCA_FILTER_MODE_FIXED

#define DCA_FILTER_MODE_FIXED   0x02

Definition at line 55 of file dca_core.h.

Enumeration Type Documentation

DCACoreAudioMode

enum DCACoreAudioMode

Enumerator
DCA_AMODE_MONO
DCA_AMODE_MONO_DUAL
DCA_AMODE_STEREO
DCA_AMODE_STEREO_SUMDIFF
DCA_AMODE_STEREO_TOTAL
DCA_AMODE_3F
DCA_AMODE_2F1R
DCA_AMODE_3F1R
DCA_AMODE_2F2R
DCA_AMODE_3F2R
DCA_AMODE_COUNT

Definition at line 57 of file dca_core.h.

DCACoreExtAudioType

enum DCACoreExtAudioType

Enumerator
DCA_EXT_AUDIO_XCH
DCA_EXT_AUDIO_X96
DCA_EXT_AUDIO_XXCH

Definition at line 72 of file dca_core.h.

DCACoreLFEFlag

enum DCACoreLFEFlag

Enumerator
DCA_LFE_FLAG_NONE
DCA_LFE_FLAG_128
DCA_LFE_FLAG_64
DCA_LFE_FLAG_INVALID

Definition at line 78 of file dca_core.h.

Function Documentation

ff_dca_core_map_spkr()

static int ff_dca_core_map_spkr ( DCACoreDecoder *  core, int  spkr  )

inlinestatic

Definition at line 214 of file dca_core.h.

Referenced by combine_residual_frame(), and force_lossy_output().

ff_dca_core_dequantize()

static void ff_dca_core_dequantize ( int32_t *  output, const int32_t *  input, int32_t  step_size, int32_t  scale, int  residual, int  len  )

inlinestatic

Definition at line 225 of file dca_core.h.

Referenced by ff_dcaadpcm_do_real(), fill_in_adpcm_bufer(), parse_subframe_audio(), parse_x96_subframe_audio(), and parse_xbr_subframe().

ff_dca_core_parse()

int ff_dca_core_parse	(	DCACoreDecoder *	s,
		const uint8_t *	data,
		int	size
	)

Definition at line 1800 of file dca_core.c.

Referenced by dcadec_decode_frame().

ff_dca_core_parse_exss()

int ff_dca_core_parse_exss	(	DCACoreDecoder *	s,
		const uint8_t *	data,
		DCAExssAsset *	asset
	)

Definition at line 1833 of file dca_core.c.

Referenced by dcadec_decode_frame().

ff_dca_core_filter_fixed()

int ff_dca_core_filter_fixed	(	DCACoreDecoder *	s,
		int	x96_synth
	)

Definition at line 1961 of file dca_core.c.

Referenced by dcadec_decode_frame(), and filter_frame_fixed().

ff_dca_core_filter_frame()

int ff_dca_core_filter_frame	(	DCACoreDecoder *	s,
		AVFrame *	frame
	)

Definition at line 2347 of file dca_core.c.

Referenced by dcadec_decode_frame().

ff_dca_core_flush()

av_cold void ff_dca_core_flush

(

DCACoreDecoder *

s

)

Definition at line 2401 of file dca_core.c.

Referenced by dcadec_flush().

ff_dca_core_init()

av_cold int ff_dca_core_init

(

DCACoreDecoder *

s

)

Definition at line 2414 of file dca_core.c.

Referenced by dcadec_init().

ff_dca_core_close()

av_cold void ff_dca_core_close

(

DCACoreDecoder *

s

)

Definition at line 2432 of file dca_core.c.

Referenced by dcadec_close().