dca.h File Reference

#include <stdint.h>
#include "libavutil/float_dsp.h"
#include "libavutil/internal.h"
#include "avcodec.h"
#include "dcadsp.h"
#include "fmtconvert.h"
#include "get_bits.h"

Go to the source code of this file.

Data Structures
struct	XllChSetSubHeader
struct	XllNavi
struct	QMF64_table
struct	DCAContext

Macros
#define	DCA_PRIM_CHANNELS_MAX   (7)
#define	DCA_ABITS_MAX   (32) /* Should be 28 */
#define	DCA_SUBSUBFRAMES_MAX   (4)
#define	DCA_SUBFRAMES_MAX   (16)
#define	DCA_BLOCKS_MAX   (16)
#define	DCA_LFE_MAX   (3)
#define	DCA_CHSETS_MAX   (4)
#define	DCA_CHSET_CHANS_MAX   (8)
#define	DCA_PRIM_CHANNELS_MAX   (7)
#define	DCA_ABITS_MAX   (32) /* Should be 28 */
#define	DCA_SUBSUBFRAMES_MAX   (4)
#define	DCA_SUBFRAMES_MAX   (16)
#define	DCA_BLOCKS_MAX   (16)
#define	DCA_LFE_MAX   (3)
#define	DCA_XLL_FBANDS_MAX   (4)
#define	DCA_XLL_SEGMENTS_MAX   (16)
#define	DCA_XLL_CHSETS_MAX   (16)
#define	DCA_XLL_CHANNELS_MAX   (16)
#define	DCA_XLL_AORDER_MAX   (15)
#define	DCA_XLL_DMIX_NCOEFFS_MAX   (18)
#define	DCA_MAX_FRAME_SIZE   16384
#define	DCA_MAX_EXSS_HEADER_SIZE   4096
#define	DCA_BUFFER_PADDING_SIZE   1024

Enumerations
enum	DCAExtensionMask {   DCA_EXT_CORE = 0x001, DCA_EXT_XXCH = 0x002, DCA_EXT_X96 = 0x004, DCA_EXT_XCH = 0x008,   DCA_EXT_EXSS_CORE = 0x010, DCA_EXT_EXSS_XBR = 0x020, DCA_EXT_EXSS_XXCH = 0x040, DCA_EXT_EXSS_X96 = 0x080,   DCA_EXT_EXSS_LBR = 0x100, DCA_EXT_EXSS_XLL = 0x200 }

Functions
int	avpriv_dca_convert_bitstream (const uint8_t *src, int src_size, uint8_t *dst, int max_size)
	Convert bitstream to one representation based on sync marker. More...
int	ff_dca_xbr_parse_frame (DCAContext *s)
int	ff_dca_xxch_decode_frame (DCAContext *s)
void	ff_dca_exss_parse_header (DCAContext *s)
	Parse extension substream header (HD) More...
int	ff_dca_xll_decode_header (DCAContext *s)
int	ff_dca_xll_decode_navi (DCAContext *s, int asset_end)
int	ff_dca_xll_decode_audio (DCAContext *s, AVFrame *frame)

Variables
av_export const uint32_t	avpriv_dca_sample_rates [16]

Macro Definition Documentation

#define DCA_PRIM_CHANNELS_MAX   (7)

Definition at line 47 of file dca.h.

Referenced by dca_parse_audio_coding_header().

#define DCA_ABITS_MAX   (32) /* Should be 28 */

Definition at line 48 of file dca.h.

#define DCA_SUBSUBFRAMES_MAX   (4)

Definition at line 49 of file dca.h.

#define DCA_SUBFRAMES_MAX   (16)

Definition at line 50 of file dca.h.

#define DCA_BLOCKS_MAX   (16)

Definition at line 51 of file dca.h.

#define DCA_LFE_MAX   (3)

Definition at line 52 of file dca.h.

#define DCA_CHSETS_MAX   (4)

Definition at line 44 of file dca.h.

Referenced by ff_dca_xbr_parse_frame().

#define DCA_CHSET_CHANS_MAX   (8)

Definition at line 45 of file dca.h.

Referenced by ff_dca_xbr_parse_frame().

#define DCA_PRIM_CHANNELS_MAX   (7)

Definition at line 47 of file dca.h.

#define DCA_ABITS_MAX   (32) /* Should be 28 */

Definition at line 48 of file dca.h.

#define DCA_SUBSUBFRAMES_MAX   (4)

Definition at line 49 of file dca.h.

#define DCA_SUBFRAMES_MAX   (16)

Definition at line 50 of file dca.h.

#define DCA_BLOCKS_MAX   (16)

Definition at line 51 of file dca.h.

#define DCA_LFE_MAX   (3)

Definition at line 52 of file dca.h.

#define DCA_XLL_FBANDS_MAX   (4)

Definition at line 53 of file dca.h.

#define DCA_XLL_SEGMENTS_MAX   (16)

Definition at line 54 of file dca.h.

#define DCA_XLL_CHSETS_MAX   (16)

Definition at line 55 of file dca.h.

#define DCA_XLL_CHANNELS_MAX   (16)

Definition at line 56 of file dca.h.

#define DCA_XLL_AORDER_MAX   (15)

Definition at line 57 of file dca.h.

Referenced by dca_xll_inv_adapt_pred(), and ff_dca_xll_decode_audio().

#define DCA_XLL_DMIX_NCOEFFS_MAX   (18)

Definition at line 60 of file dca.h.

Referenced by ff_dca_xll_decode_header().

#define DCA_MAX_FRAME_SIZE   16384

Definition at line 62 of file dca.h.

Referenced by dca_decode_frame().

#define DCA_MAX_EXSS_HEADER_SIZE   4096

Definition at line 63 of file dca.h.

Referenced by dca_decode_frame().

#define DCA_BUFFER_PADDING_SIZE   1024

Definition at line 65 of file dca.h.

Enumeration Type Documentation

enum DCAExtensionMask

Enumerator
DCA_EXT_CORE	core in core substream
DCA_EXT_XXCH	XXCh channels extension in core substream.
DCA_EXT_X96	96/24 extension in core substream
DCA_EXT_XCH	XCh channel extension in core substream.
DCA_EXT_EXSS_CORE	core in ExSS (extension substream)
DCA_EXT_EXSS_XBR	extended bitrate extension in ExSS
DCA_EXT_EXSS_XXCH	XXCh channels extension in ExSS.
DCA_EXT_EXSS_X96	96/24 extension in ExSS
DCA_EXT_EXSS_LBR	low bitrate component in ExSS
DCA_EXT_EXSS_XLL	lossless extension in ExSS

Definition at line 67 of file dca.h.

Function Documentation

int avpriv_dca_convert_bitstream	(	const uint8_t *	src,
		int	src_size,
		uint8_t *	dst,
		int	max_size
	)

Convert bitstream to one representation based on sync marker.

Definition at line 39 of file dca.c.

Referenced by dca_decode_frame(), dca_parse_params(), dcadec_decode_frame(), and dts_probe().

int ff_dca_xbr_parse_frame

(

DCAContext *

s

)

Definition at line 1218 of file dcadec.c.

Referenced by ff_dca_exss_parse_header().

int ff_dca_xxch_decode_frame

(

DCAContext *

s

)

Definition at line 1396 of file dcadec.c.

Referenced by dca_decode_frame(), and ff_dca_exss_parse_header().

void ff_dca_exss_parse_header

(

DCAContext *

s

)

Parse extension substream header (HD)

Definition at line 245 of file dca_exss.c.

Referenced by dca_decode_frame().

int ff_dca_xll_decode_header

(

DCAContext *

s

)

Definition at line 77 of file dca_xll.c.

Referenced by ff_dca_exss_parse_header().

int ff_dca_xll_decode_navi	(	DCAContext *	s,
		int	asset_end
	)

Definition at line 291 of file dca_xll.c.

Referenced by ff_dca_exss_parse_header().

int ff_dca_xll_decode_audio	(	DCAContext *	s,
		AVFrame *	frame
	)

Definition at line 409 of file dca_xll.c.

Referenced by dca_decode_frame().

Variable Documentation

av_export const uint32_t avpriv_dca_sample_rates[16]

Definition at line 34 of file dca.c.

Referenced by dca_parse_frame_header(), dca_parse_params(), dts_probe(), and spdif_header_dts().