tta.c File Reference

Go to the source code of this file.

Classes
struct	TTAContext
struct	TTAFilter
struct	TTARice
Functions
static int	shift_1 (int i)
static int	shift_16 (int i)
static void	ttafilter_init (TTAFilter *c, int32_t shift, int32_t mode)
static void	memshl (register int32_t *a, register int32_t *b)
static void	ttafilter_process (TTAFilter *c, int32_t *in, int32_t mode)
static void	rice_init (TTARice *c, uint32_t k0, uint32_t k1)
static int	tta_get_unary (GetBitContext *gb)
static int	tta_decode_init (AVCodecContext *avctx)
static int	tta_decode_frame (AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
static int	tta_decode_close (AVCodecContext *avctx)
Variables
static const uint32_t	shift_1 []
static const uint32_t *	shift_16 = shift_1 + 4
static int32_t	ttafilter_configs [4][2]
AVCodec	tta_decoder

---

Function Documentation

static int shift_1

(

int

i

)

[inline, static]

Definition at line 50 of file libavcodec/tta.c.

static int shift_16

(

int

i

)

[inline, static]

Definition at line 58 of file libavcodec/tta.c.

static void ttafilter_init	(	TTAFilter *	c,
		int32_t	shift,
		int32_t	mode
	)			[static]

Definition at line 97 of file libavcodec/tta.c.

Referenced by tta_decode_frame().

static void memshl	(	register int32_t *	a,
		register int32_t *	b
	)			[inline, static]

Definition at line 106 of file libavcodec/tta.c.

Referenced by ttafilter_process().

static void ttafilter_process	(	TTAFilter *	c,
		int32_t *	in,
		int32_t	mode
	)			[inline, static]

Definition at line 119 of file libavcodec/tta.c.

Referenced by tta_decode_frame().

static void rice_init	(	TTARice *	c,
		uint32_t	k0,
		uint32_t	k1
	)			[static]

Definition at line 182 of file libavcodec/tta.c.

Referenced by tta_decode_frame().

static int tta_get_unary

(

GetBitContext *

gb

)

[static]

Definition at line 190 of file libavcodec/tta.c.

Referenced by tta_decode_frame().

static int tta_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 200 of file libavcodec/tta.c.

static int tta_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 288 of file libavcodec/tta.c.

static int tta_decode_close

(

AVCodecContext *

avctx

)

[static]

Definition at line 428 of file libavcodec/tta.c.

---

Variable Documentation

const uint32_t shift_1[] [static]

Initial value:

 {
    0x00000001, 0x00000002, 0x00000004, 0x00000008,
    0x00000010, 0x00000020, 0x00000040, 0x00000080,
    0x00000100, 0x00000200, 0x00000400, 0x00000800,
    0x00001000, 0x00002000, 0x00004000, 0x00008000,
    0x00010000, 0x00020000, 0x00040000, 0x00080000,
    0x00100000, 0x00200000, 0x00400000, 0x00800000,
    0x01000000, 0x02000000, 0x04000000, 0x08000000,
    0x10000000, 0x20000000, 0x40000000, 0x80000000,
    0x80000000, 0x80000000, 0x80000000, 0x80000000,
    0x80000000, 0x80000000, 0x80000000, 0x80000000
}

Definition at line 66 of file libavcodec/tta.c.

Referenced by tta_decode_frame(), and ttafilter_init().

const uint32_t* shift_16 = shift_1 + 4 [static]

Definition at line 79 of file libavcodec/tta.c.

Referenced by rice_init(), and tta_decode_frame().

int32_t ttafilter_configs[4][2] [static]

Initial value:

 {
    {10, 1},
    {9, 1},
    {10, 1},
    {12, 0}
}

Definition at line 90 of file libavcodec/tta.c.

Referenced by tta_decode_frame().

AVCodec tta_decoder

Initial value:

 {
    "tta",
    CODEC_TYPE_AUDIO,
    CODEC_ID_TTA,
    sizeof(TTAContext),
    tta_decode_init,
    NULL,
    tta_decode_close,
    tta_decode_frame,
}

Definition at line 437 of file libavcodec/tta.c.