libavcodec/mace.c File Reference

MACE decoder. More...

#include "avcodec.h"

Go to the source code of this file.

Data Structures
struct	ChannelData
struct	MACEContext
Defines
#define	QT_8S_2_16S(x)   (((x) & 0xFF00) | (((x) >> 8) & 0xFF))
Typedefs
typedef struct ChannelData	ChannelData
typedef struct MACEContext	MACEContext
Functions
static int16_t	mace_broken_clip_int16 (int n)
	MACE version of av_clip_int16().
static int16_t	read_table (ChannelData *chd, uint8_t val, int tab_idx)
static void	chomp3 (ChannelData *chd, int16_t *output, uint8_t val, int tab_idx, uint32_t numChannels)
static void	chomp6 (ChannelData *chd, int16_t *output, uint8_t val, int tab_idx, uint32_t numChannels)
static av_cold int	mace_decode_init (AVCodecContext *avctx)
static int	mace_decode_frame (AVCodecContext *avctx, void *data, int *data_size, const uint8_t *buf, int buf_size)
Variables
static const int16_t	MACEtab1 [] = {-13, 8, 76, 222, 222, 76, 8, -13}
static const int16_t	MACEtab3 [] = {-18, 140, 140, -18}
static const int16_t	MACEtab2 [][4]
static const int16_t	MACEtab4 [][2]
struct {
const int16_t *   tab1
const int16_t *   tab2
int   stride
}	tabs []
AVCodec	mace3_decoder
AVCodec	mace6_decoder

---

Detailed Description

MACE decoder.

Definition in file mace.c.

---

Define Documentation

#define QT_8S_2_16S

(

x

)

(((x) & 0xFF00) | (((x) >> 8) & 0xFF))

Definition at line 149 of file mace.c.

Referenced by chomp3(), and chomp6().

---

Typedef Documentation

typedef struct ChannelData ChannelData

typedef struct MACEContext MACEContext

---

Function Documentation

static void chomp3	(	ChannelData *	chd,
		int16_t *	output,
		uint8_t	val,
		int	tab_idx,
		uint32_t	numChannels
	)			[static]

Definition at line 188 of file mace.c.

Referenced by mace_decode_frame().

static void chomp6	(	ChannelData *	chd,
		int16_t *	output,
		uint8_t	val,
		int	tab_idx,
		uint32_t	numChannels
	)			[static]

Definition at line 201 of file mace.c.

Referenced by mace_decode_frame().

static int16_t mace_broken_clip_int16

(

int

n

)

[inline, static]

MACE version of av_clip_int16().

We have to do this to keep binary identical output to the binary decoder.

Definition at line 163 of file mace.c.

Referenced by chomp3(), and chomp6().

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

Definition at line 237 of file mace.c.

static av_cold int mace_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 229 of file mace.c.

static int16_t read_table	(	ChannelData *	chd,
		uint8_t	val,
		int	tab_idx
	)			[static]

Definition at line 173 of file mace.c.

Referenced by chomp3(), and chomp6().

---

Variable Documentation

AVCodec mace3_decoder

Initial value:

 {
    "mace3",
    CODEC_TYPE_AUDIO,
    CODEC_ID_MACE3,
    sizeof(MACEContext),
    mace_decode_init,
    NULL,
    NULL,
    mace_decode_frame,
    .long_name = NULL_IF_CONFIG_SMALL("MACE (Macintosh Audio Compression/Expansion) 3:1"),
}

Definition at line 280 of file mace.c.

AVCodec mace6_decoder

Initial value:

 {
    "mace6",
    CODEC_TYPE_AUDIO,
    CODEC_ID_MACE6,
    sizeof(MACEContext),
    mace_decode_init,
    NULL,
    NULL,
    mace_decode_frame,
    .long_name = NULL_IF_CONFIG_SMALL("MACE (Macintosh Audio Compression/Expansion) 6:1"),
}

Definition at line 292 of file mace.c.

const int16_t MACEtab1[] = {-13, 8, 76, 222, 222, 76, 8, -13} [static]

Definition at line 35 of file mace.c.

const int16_t MACEtab2[][4] [static]

Definition at line 39 of file mace.c.

const int16_t MACEtab3[] = {-18, 140, 140, -18} [static]

Definition at line 37 of file mace.c.

const int16_t MACEtab4[][2] [static]

Definition at line 106 of file mace.c.

int stride

Definition at line 142 of file mace.c.

Referenced by aasc_decode_frame(), apply_loop_filter(), avs_decode_frame(), bitplane_decoding(), check_bidir_mv(), cmp(), copy_picture_attributes(), decode(), decode_13(), decode_frame(), decode_i2_frame(), decode_i_frame(), decode_p_frame(), DEF(), doVertLowPass_SSE2(), encode_q_branch(), ff_apply_vector_2x2(), ff_apply_vector_4x4(), ff_h263_decode_mb(), ff_init_me(), ff_jpegls_decode_picture(), get_frame_mb(), h263_mv4_search(), idct_put(), init_mv4_ref(), init_ref(), interlaced_search(), main(), mpeg4_decode_partition_a(), msvideo1_decode_16bit(), msvideo1_decode_8bit(), pcx_decode_frame(), pp_get_context(), preview_obmc(), ptx_decode_frame(), read_table(), render_slice(), rpza_decode_stream(), sad_hpel_motion_search(), skip_check(), smc_decode_stream(), sunrast_decode_frame(), txd_decode_frame(), vp56_size_changed(), xan_wc3_copy_pixel_run(), and xan_wc3_output_pixel_run().

const int16_t* tab1

Definition at line 142 of file mace.c.

Referenced by compute_stereo(), and main().

const int16_t* tab2

Definition at line 142 of file mace.c.

Referenced by main().

struct { ... } tabs[] [static]

Referenced by read_table().