dca_core.h File Reference

#include "libavutil/common.h"
#include "libavutil/float_dsp.h"
#include "libavutil/fixed_dsp.h"
#include "libavutil/mem.h"
#include "avcodec.h"
#include "internal.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, uint8_t *data, int size)
int	ff_dca_core_parse_exss (DCACoreDecoder *s, 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

#define DCA_CHANNELS   7

Definition at line 41 of file dca_core.h.

Referenced by alloc_sample_buffer(), alloc_x96_sample_buffer(), erase_adpcm_history(), erase_x96_adpcm_history(), parse_coding_header(), and parse_xbr_subframe().

#define DCA_SUBBANDS   32

Definition at line 42 of file dca_core.h.

Referenced by alloc_sample_buffer(), erase_adpcm_history(), parse_coding_header(), parse_frame_data(), parse_subframe_audio(), parse_x96_coding_header(), parse_xbr_frame(), and parse_xbr_subframe().

#define DCA_SUBBANDS_X96   64

Definition at line 43 of file dca_core.h.

Referenced by alloc_x96_sample_buffer(), erase_x96_adpcm_history(), and parse_x96_frame_data().

#define DCA_SUBFRAMES   16

Definition at line 44 of file dca_core.h.

#define DCA_SUBBAND_SAMPLES   8

Definition at line 45 of file dca_core.h.

Referenced by decode_blockcodes(), extract_audio(), ff_dca_parse_core_frame_header(), parse_huffman_codes(), parse_subframe_audio(), parse_x96_subframe_audio(), and parse_xbr_subframe().

#define DCA_PCMBLOCK_SAMPLES   32

Definition at line 46 of file dca_core.h.

Referenced by dca_parse_params(), ff_dca_core_filter_fixed(), ff_dca_parse_core_frame_header(), and filter_frame_float().

#define DCA_LFE_HISTORY   8

Definition at line 47 of file dca_core.h.

Referenced by alloc_sample_buffer(), ff_dca_core_filter_fixed(), ff_dca_core_flush(), filter_frame_float(), and parse_frame_data().

#define DCA_ABITS_MAX   26

Definition at line 48 of file dca_core.h.

Referenced by extract_audio(), parse_subframe_header(), and parse_xbr_subframe().

#define DCA_CORE_CHANNELS_MAX   6

Definition at line 50 of file dca_core.h.

#define DCA_DMIX_CHANNELS_MAX   4

Definition at line 51 of file dca_core.h.

#define DCA_XXCH_CHANNELS_MAX   2

Definition at line 52 of file dca_core.h.

Referenced by filter_frame_fixed(), filter_frame_float(), and parse_coding_header().

#define DCA_EXSS_CHANNELS_MAX   8

Definition at line 53 of file dca_core.h.

Referenced by parse_xbr_frame().

#define DCA_EXSS_CHSETS_MAX   4

Definition at line 54 of file dca_core.h.

Referenced by parse_x96_frame_exss(), and parse_xbr_frame().

#define DCA_FILTER_MODE_X96   0x01

Definition at line 56 of file dca_core.h.

#define DCA_FILTER_MODE_FIXED   0x02

Definition at line 57 of file dca_core.h.

Referenced by dcadec_decode_frame(), and ff_dca_core_filter_fixed().

Enumeration Type Documentation

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 59 of file dca_core.h.

enum DCACoreExtAudioType

Enumerator
DCA_EXT_AUDIO_XCH
DCA_EXT_AUDIO_X96
DCA_EXT_AUDIO_XXCH

Definition at line 74 of file dca_core.h.

enum DCACoreLFEFlag

Enumerator
DCA_LFE_FLAG_NONE
DCA_LFE_FLAG_128
DCA_LFE_FLAG_64
DCA_LFE_FLAG_INVALID

Definition at line 80 of file dca_core.h.

Function Documentation

static int ff_dca_core_map_spkr ( DCACoreDecoder *  core, int  spkr  )

inlinestatic

Definition at line 216 of file dca_core.h.

Referenced by combine_residual_frame(), and force_lossy_output().

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 227 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().

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

Definition at line 1798 of file dca_core.c.

Referenced by dcadec_decode_frame().

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

Definition at line 1831 of file dca_core.c.

Referenced by dcadec_decode_frame().

int ff_dca_core_filter_fixed	(	DCACoreDecoder *	s,
		int	x96_synth
	)

Definition at line 1959 of file dca_core.c.

Referenced by dcadec_decode_frame(), and filter_frame_fixed().

int ff_dca_core_filter_frame	(	DCACoreDecoder *	s,
		AVFrame *	frame
	)

Definition at line 2345 of file dca_core.c.

Referenced by dcadec_decode_frame().

av_cold void ff_dca_core_flush

(

DCACoreDecoder *

s

)

Definition at line 2399 of file dca_core.c.

Referenced by dcadec_flush().

av_cold int ff_dca_core_init

(

DCACoreDecoder *

s

)

Definition at line 2412 of file dca_core.c.

Referenced by dcadec_init().

av_cold void ff_dca_core_close

(

DCACoreDecoder *

s

)

Definition at line 2430 of file dca_core.c.

Referenced by dcadec_close().