#include <stdint.h>
#include "get_bits.h"
#include "mpegvideo.h"
#include "rl.h"

Data Structures
struct	Mpeg4DecContext

Macros
#define	RECT_SHAPE 0

#define	BIN_SHAPE 1

#define	BIN_ONLY_SHAPE 2

#define	GRAY_SHAPE 3

#define	SIMPLE_VO_TYPE 1

#define	CORE_VO_TYPE 3

#define	MAIN_VO_TYPE 4

#define	NBIT_VO_TYPE 5

#define	ARTS_VO_TYPE 10

#define	ACE_VO_TYPE 12

#define	SIMPLE_STUDIO_VO_TYPE 14

#define	CORE_STUDIO_VO_TYPE 15

#define	ADV_SIMPLE_VO_TYPE 17

#define	VOT_VIDEO_ID 1

#define	VOT_STILL_TEXTURE_ID 2

#define	EXTENDED_PAR 15

#define	STATIC_SPRITE 1

#define	GMC_SPRITE 2

#define	MOTION_MARKER 0x1F001

#define	DC_MARKER 0x6B001

#define	VOS_STARTCODE 0x1B0

#define	USER_DATA_STARTCODE 0x1B2

#define	GOP_STARTCODE 0x1B3

#define	VISUAL_OBJ_STARTCODE 0x1B5

#define	VOP_STARTCODE 0x1B6

#define	SLICE_STARTCODE 0x1B7

#define	EXT_STARTCODE 0x1B8

#define	QUANT_MATRIX_EXT_ID 0x3

#define	MAX_NVOP_SIZE 19

#define	IS_3IV1 0

Functions
void	ff_mpeg4_encode_mb (MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)

void	ff_mpeg4_pred_ac (MpegEncContext s, int16_t block, int n, int dir)
	Predict the ac. More...

void	ff_set_mpeg4_time (MpegEncContext *s)

int	ff_mpeg4_encode_picture_header (MpegEncContext *s, int picture_number)

int	ff_mpeg4_decode_picture_header (Mpeg4DecContext ctx, GetBitContext gb, int header)
	Decode MPEG-4 headers. More...

void	ff_mpeg4_encode_video_packet_header (MpegEncContext *s)

void	ff_mpeg4_clean_buffers (MpegEncContext *s)

void	ff_mpeg4_stuffing (PutBitContext *pbc)
	add MPEG-4 stuffing bits (01...1) More...

void	ff_mpeg4_init_partitions (MpegEncContext *s)

void	ff_mpeg4_merge_partitions (MpegEncContext *s)

void	ff_clean_mpeg4_qscales (MpegEncContext *s)
	modify mb_type & qscale so that encoding is actually possible in MPEG-4 More...

int	ff_mpeg4_decode_partitions (Mpeg4DecContext *ctx)
	Decode the first and second partition. More...

int	ff_mpeg4_get_video_packet_prefix_length (MpegEncContext *s)

int	ff_mpeg4_decode_video_packet_header (Mpeg4DecContext *ctx)
	Decode the next video packet. More...

int	ff_mpeg4_decode_studio_slice_header (Mpeg4DecContext *ctx)
	Decode the next video packet. More...

void	ff_mpeg4_init_direct_mv (MpegEncContext *s)

void	ff_mpeg4videodec_static_init (void)

int	ff_mpeg4_workaround_bugs (AVCodecContext *avctx)

int	ff_mpeg4_frame_end (AVCodecContext avctx, const uint8_t buf, int buf_size)

int	ff_mpeg4_set_direct_mv (MpegEncContext *s, int mx, int my)

static int	ff_mpeg4_pred_dc (MpegEncContext s, int n, int level, int dir_ptr, int encoding)
	Predict the dc. More...

Variables
static const uint8_t	mpeg4_block_count [4] = {0, 6, 8, 12}

const uint8_t	ff_mpeg4_DCtab_lum [13][2]

const uint8_t	ff_mpeg4_DCtab_chrom [13][2]

const uint16_t	ff_mpeg4_intra_vlc [103][2]

const int8_t	ff_mpeg4_intra_level [102]

const int8_t	ff_mpeg4_intra_run [102]

RLTable	ff_mpeg4_rl_intra

RLTable	ff_rvlc_rl_inter

RLTable	ff_rvlc_rl_intra

const uint16_t	ff_sprite_trajectory_tab [15][2]

const uint8_t	ff_mb_type_b_tab [4][2]

const int16_t	ff_mpeg4_default_intra_matrix [64]

const int16_t	ff_mpeg4_default_non_intra_matrix [64]

const uint8_t	ff_mpeg4_y_dc_scale_table [32]

const uint8_t	ff_mpeg4_c_dc_scale_table [32]

const uint16_t	ff_mpeg4_resync_prefix [8]

const uint8_t	ff_mpeg4_dc_threshold [8]

const uint16_t	ff_mpeg4_studio_dc_luma [19][2]

const uint16_t	ff_mpeg4_studio_dc_chroma [19][2]

const uint16_t	ff_mpeg4_studio_intra [12][22][2]

uint8_t	ff_mpeg4_static_rl_table_store [3][2][2 *MAX_RUN+MAX_LEVEL+3]

Macro Definition Documentation

◆ RECT_SHAPE

#define RECT_SHAPE 0

Definition at line 33 of file mpeg4video.h.

◆ BIN_SHAPE

#define BIN_SHAPE 1

Definition at line 34 of file mpeg4video.h.

◆ BIN_ONLY_SHAPE

#define BIN_ONLY_SHAPE 2

Definition at line 35 of file mpeg4video.h.

◆ GRAY_SHAPE

#define GRAY_SHAPE 3

Definition at line 36 of file mpeg4video.h.

◆ SIMPLE_VO_TYPE

#define SIMPLE_VO_TYPE 1

Definition at line 38 of file mpeg4video.h.

◆ CORE_VO_TYPE

#define CORE_VO_TYPE 3

Definition at line 39 of file mpeg4video.h.

◆ MAIN_VO_TYPE

#define MAIN_VO_TYPE 4

Definition at line 40 of file mpeg4video.h.

◆ NBIT_VO_TYPE

#define NBIT_VO_TYPE 5

Definition at line 41 of file mpeg4video.h.

◆ ARTS_VO_TYPE

#define ARTS_VO_TYPE 10

Definition at line 42 of file mpeg4video.h.

◆ ACE_VO_TYPE

#define ACE_VO_TYPE 12

Definition at line 43 of file mpeg4video.h.

◆ SIMPLE_STUDIO_VO_TYPE

#define SIMPLE_STUDIO_VO_TYPE 14

Definition at line 44 of file mpeg4video.h.

◆ CORE_STUDIO_VO_TYPE

#define CORE_STUDIO_VO_TYPE 15

Definition at line 45 of file mpeg4video.h.

◆ ADV_SIMPLE_VO_TYPE

#define ADV_SIMPLE_VO_TYPE 17

Definition at line 46 of file mpeg4video.h.

◆ VOT_VIDEO_ID

#define VOT_VIDEO_ID 1

Definition at line 48 of file mpeg4video.h.

◆ VOT_STILL_TEXTURE_ID

#define VOT_STILL_TEXTURE_ID 2

Definition at line 49 of file mpeg4video.h.

◆ EXTENDED_PAR

#define EXTENDED_PAR 15

Definition at line 52 of file mpeg4video.h.

◆ STATIC_SPRITE

#define STATIC_SPRITE 1

Definition at line 55 of file mpeg4video.h.

◆ GMC_SPRITE

#define GMC_SPRITE 2

Definition at line 56 of file mpeg4video.h.

◆ MOTION_MARKER

#define MOTION_MARKER 0x1F001

Definition at line 58 of file mpeg4video.h.

◆ DC_MARKER

#define DC_MARKER 0x6B001

Definition at line 59 of file mpeg4video.h.

◆ VOS_STARTCODE

#define VOS_STARTCODE 0x1B0

Definition at line 61 of file mpeg4video.h.

◆ USER_DATA_STARTCODE

#define USER_DATA_STARTCODE 0x1B2

Definition at line 62 of file mpeg4video.h.

◆ GOP_STARTCODE

#define GOP_STARTCODE 0x1B3

Definition at line 63 of file mpeg4video.h.

◆ VISUAL_OBJ_STARTCODE

#define VISUAL_OBJ_STARTCODE 0x1B5

Definition at line 64 of file mpeg4video.h.

◆ VOP_STARTCODE

#define VOP_STARTCODE 0x1B6

Definition at line 65 of file mpeg4video.h.

◆ SLICE_STARTCODE

#define SLICE_STARTCODE 0x1B7

Definition at line 66 of file mpeg4video.h.

◆ EXT_STARTCODE

#define EXT_STARTCODE 0x1B8

Definition at line 67 of file mpeg4video.h.

◆ QUANT_MATRIX_EXT_ID

#define QUANT_MATRIX_EXT_ID 0x3

Definition at line 69 of file mpeg4video.h.

◆ MAX_NVOP_SIZE

#define MAX_NVOP_SIZE 19

Definition at line 72 of file mpeg4video.h.

◆ IS_3IV1

#define IS_3IV1 0

Definition at line 192 of file mpeg4video.h.

Function Documentation

◆ ff_mpeg4_encode_mb()

void ff_mpeg4_encode_mb	(	MpegEncContext *	s,
		int16_t	block[6][64],
		int	motion_x,
		int	motion_y
	)

Definition at line 475 of file mpeg4videoenc.c.

Referenced by encode_mb_internal().

◆ ff_mpeg4_pred_ac()

void ff_mpeg4_pred_ac	(	MpegEncContext *	s,
		int16_t *	block,
		int	n,
		int	dir
	)

Predict the ac.

Parameters

n	block index (0-3 are luma, 4-5 are chroma)
dir	the ac prediction direction

Definition at line 69 of file mpeg4videodec.c.

Referenced by ff_msmpeg4_decode_block(), and mpeg4_decode_block().

◆ ff_set_mpeg4_time()

void ff_set_mpeg4_time ( MpegEncContext * s )

Definition at line 873 of file mpeg4videoenc.c.

Referenced by encode_picture().

◆ ff_mpeg4_encode_picture_header()

int ff_mpeg4_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 1061 of file mpeg4videoenc.c.

Referenced by encode_picture().

◆ ff_mpeg4_decode_picture_header()

int ff_mpeg4_decode_picture_header	(	Mpeg4DecContext *	ctx,
		GetBitContext *	gb,
		int	header
	)

Decode MPEG-4 headers.

Parameters

header If set the absence of a VOP is not treated as error; otherwise, it is treated as such.

Returns: <0 if an error occurred FRAME_SKIPPED if a not coded VOP is found 0 else

Definition at line 3228 of file mpeg4videodec.c.

Referenced by ff_h263_decode_frame(), and mpeg4_decode_header().

◆ ff_mpeg4_encode_video_packet_header()

void ff_mpeg4_encode_video_packet_header ( MpegEncContext * s )

Definition at line 1363 of file mpeg4videoenc.c.

Referenced by encode_thread().

◆ ff_mpeg4_clean_buffers()

void ff_mpeg4_clean_buffers ( MpegEncContext * s )

Definition at line 45 of file mpeg4video.c.

Referenced by encode_thread(), ff_h263_decode_frame(), and ff_msmpeg4_handle_slices().

◆ ff_mpeg4_stuffing()

void ff_mpeg4_stuffing ( PutBitContext * pbc )

add MPEG-4 stuffing bits (01...1)

Definition at line 863 of file mpeg4videoenc.c.

Referenced by mpeg4_encode_gop_header(), mpeg4_encode_visual_object_header(), mpeg4_encode_vol_header(), and write_slice_end().

◆ ff_mpeg4_init_partitions()

void ff_mpeg4_init_partitions ( MpegEncContext * s )

Definition at line 1324 of file mpeg4videoenc.c.

Referenced by encode_thread().

◆ ff_mpeg4_merge_partitions()

void ff_mpeg4_merge_partitions ( MpegEncContext * s )

Definition at line 1337 of file mpeg4videoenc.c.

Referenced by write_slice_end().

◆ ff_clean_mpeg4_qscales()

void ff_clean_mpeg4_qscales ( MpegEncContext * s )

modify mb_type & qscale so that encoding is actually possible in MPEG-4

Definition at line 213 of file mpeg4videoenc.c.

Referenced by estimate_qp().

◆ ff_mpeg4_decode_partitions()

int ff_mpeg4_decode_partitions ( Mpeg4DecContext * ctx )

Decode the first and second partition.

Returns: <0 if error (and sets error type in the error_status_table)

Definition at line 977 of file mpeg4videodec.c.

Referenced by decode_slice().

◆ ff_mpeg4_get_video_packet_prefix_length()

int ff_mpeg4_get_video_packet_prefix_length ( MpegEncContext * s )

Definition at line 30 of file mpeg4video.c.

Referenced by ff_mpeg4_decode_video_packet_header(), ff_mpeg4_encode_video_packet_header(), and mpeg4_is_resync().

◆ ff_mpeg4_decode_video_packet_header()

int ff_mpeg4_decode_video_packet_header ( Mpeg4DecContext * ctx )

Decode the next video packet.

Returns: <0 if something went wrong

Definition at line 447 of file mpeg4videodec.c.

Referenced by ff_h263_resync().

◆ ff_mpeg4_decode_studio_slice_header()

int ff_mpeg4_decode_studio_slice_header ( Mpeg4DecContext * ctx )

Decode the next video packet.

Returns: <0 if something went wrong

Definition at line 548 of file mpeg4videodec.c.

Referenced by decode_slice().

◆ ff_mpeg4_init_direct_mv()

void ff_mpeg4_init_direct_mv ( MpegEncContext * s )

Definition at line 71 of file mpeg4video.c.

Referenced by decode_vop_header(), ff_h263_decode_picture_header(), ff_set_mpeg4_time(), and rv20_decode_picture_header().

◆ ff_mpeg4videodec_static_init()

void ff_mpeg4videodec_static_init ( void )

Definition at line 3384 of file mpeg4videodec.c.

Referenced by decode_init(), and mpeg4video_parse_init().

◆ ff_mpeg4_workaround_bugs()

int ff_mpeg4_workaround_bugs ( AVCodecContext * avctx )

Definition at line 2582 of file mpeg4videodec.c.

Referenced by ff_h263_decode_frame().

◆ ff_mpeg4_frame_end()

int ff_mpeg4_frame_end	(	AVCodecContext *	avctx,
		const uint8_t *	buf,
		int	buf_size
	)

Definition at line 3410 of file mpeg4videodec.c.

Referenced by ff_h263_decode_frame().

◆ ff_mpeg4_set_direct_mv()

int ff_mpeg4_set_direct_mv	(	MpegEncContext *	s,
		int	mx,
		int	my
	)

Returns: the mb_type

Definition at line 117 of file mpeg4video.c.

Referenced by encode_thread(), and mpeg4_decode_mb().

◆ ff_mpeg4_pred_dc()

static int ff_mpeg4_pred_dc	(	MpegEncContext *	s,
		int	n,
		int	level,
		int *	dir_ptr,
		int	encoding
	)

inlinestatic

Predict the dc.

encoding quantized level -> quantized diff decoding quantized diff -> quantized level

Parameters

n	block index (0-3 are luma, 4-5 are chroma)
dir_ptr	pointer to an integer where the prediction direction will be stored

Definition at line 202 of file mpeg4video.h.

Referenced by ff_mpeg4_encode_mb(), mpeg4_decode_block(), and mpeg4_decode_dc().

Variable Documentation

◆ mpeg4_block_count

const uint8_t mpeg4_block_count[4] = {0, 6, 8, 12}

static

Definition at line 125 of file mpeg4video.h.

Referenced by mpeg4_decode_studio_mb().

◆ ff_mpeg4_DCtab_lum

const uint8_t ff_mpeg4_DCtab_lum[13][2]

Definition at line 35 of file mpeg4data.h.

Referenced by ff_mpeg4videodec_static_init(), init_h263_dc_for_msmpeg4(), and init_uni_dc_tab().

◆ ff_mpeg4_DCtab_chrom

const uint8_t ff_mpeg4_DCtab_chrom[13][2]

Definition at line 41 of file mpeg4data.h.

Referenced by ff_mpeg4videodec_static_init(), init_h263_dc_for_msmpeg4(), and init_uni_dc_tab().

◆ ff_mpeg4_intra_vlc

const uint16_t ff_mpeg4_intra_vlc[103][2]

Definition at line 47 of file mpeg4data.h.

◆ ff_mpeg4_intra_level

const int8_t ff_mpeg4_intra_level[102]

Definition at line 77 of file mpeg4data.h.

◆ ff_mpeg4_intra_run

const int8_t ff_mpeg4_intra_run[102]

Definition at line 93 of file mpeg4data.h.

◆ ff_mpeg4_rl_intra

RLTable ff_mpeg4_rl_intra

Definition at line 109 of file mpeg4data.h.

Referenced by encode_init(), ff_mpeg4videodec_static_init(), and mpeg4_decode_block().

◆ ff_rvlc_rl_inter

RLTable ff_rvlc_rl_inter

Definition at line 214 of file mpeg4data.h.

Referenced by ff_mpeg4videodec_static_init(), and mpeg4_decode_block().

◆ ff_rvlc_rl_intra

RLTable ff_rvlc_rl_intra

Definition at line 318 of file mpeg4data.h.

Referenced by ff_mpeg4videodec_static_init(), and mpeg4_decode_block().

◆ ff_sprite_trajectory_tab

const uint16_t ff_sprite_trajectory_tab[15][2]

Definition at line 326 of file mpeg4data.h.

Referenced by ff_mpeg4videodec_static_init().

◆ ff_mb_type_b_tab

const uint8_t ff_mb_type_b_tab[4][2]

Definition at line 332 of file mpeg4data.h.

Referenced by ff_mpeg4videodec_static_init().

◆ ff_mpeg4_default_intra_matrix

const int16_t ff_mpeg4_default_intra_matrix[64]

Definition at line 337 of file mpeg4data.h.

Referenced by ff_mpv_encode_init(), and mpeg4_load_default_matrices().

◆ ff_mpeg4_default_non_intra_matrix

const int16_t ff_mpeg4_default_non_intra_matrix[64]

Definition at line 348 of file mpeg4data.h.

Referenced by ff_mpv_encode_init(), and mpeg4_load_default_matrices().

◆ ff_mpeg4_y_dc_scale_table

const uint8_t ff_mpeg4_y_dc_scale_table[32]

Definition at line 359 of file mpeg4data.h.

Referenced by decode_vop_header(), encode_init(), and ff_msmpeg4_common_init().

◆ ff_mpeg4_c_dc_scale_table

const uint8_t ff_mpeg4_c_dc_scale_table[32]

Definition at line 363 of file mpeg4data.h.

Referenced by decode_vop_header(), encode_init(), and ff_msmpeg4_common_init().

◆ ff_mpeg4_resync_prefix

const uint16_t ff_mpeg4_resync_prefix[8]

Definition at line 368 of file mpeg4data.h.

Referenced by mpeg4_is_resync().

◆ ff_mpeg4_dc_threshold

const uint8_t ff_mpeg4_dc_threshold[8]

Definition at line 372 of file mpeg4data.h.

Referenced by decode_vop_header().

◆ ff_mpeg4_studio_dc_luma

const uint16_t ff_mpeg4_studio_dc_luma[19][2]

Definition at line 377 of file mpeg4data.h.

Referenced by init_studio_vlcs().

◆ ff_mpeg4_studio_dc_chroma

const uint16_t ff_mpeg4_studio_dc_chroma[19][2]

Definition at line 385 of file mpeg4data.h.

Referenced by init_studio_vlcs().

◆ ff_mpeg4_studio_intra

const uint16_t ff_mpeg4_studio_intra[12][22][2]

Definition at line 393 of file mpeg4data.h.

Referenced by init_studio_vlcs().

◆ ff_mpeg4_static_rl_table_store

uint8_t ff_mpeg4_static_rl_table_store[3][2][2 *MAX_RUN+MAX_LEVEL+3]

Definition at line 28 of file mpeg4video.c.

Referenced by encode_init(), and ff_mpeg4videodec_static_init().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ RECT_SHAPE

◆ BIN_SHAPE

◆ BIN_ONLY_SHAPE

◆ GRAY_SHAPE

◆ SIMPLE_VO_TYPE

◆ CORE_VO_TYPE

◆ MAIN_VO_TYPE

◆ NBIT_VO_TYPE

◆ ARTS_VO_TYPE

◆ ACE_VO_TYPE

◆ SIMPLE_STUDIO_VO_TYPE

◆ CORE_STUDIO_VO_TYPE

◆ ADV_SIMPLE_VO_TYPE

◆ VOT_VIDEO_ID

◆ VOT_STILL_TEXTURE_ID

◆ EXTENDED_PAR

◆ STATIC_SPRITE

◆ GMC_SPRITE

◆ MOTION_MARKER

◆ DC_MARKER

◆ VOS_STARTCODE

◆ USER_DATA_STARTCODE

◆ GOP_STARTCODE

◆ VISUAL_OBJ_STARTCODE

◆ VOP_STARTCODE

◆ SLICE_STARTCODE

◆ EXT_STARTCODE

◆ QUANT_MATRIX_EXT_ID

◆ MAX_NVOP_SIZE

◆ IS_3IV1

Function Documentation

◆ ff_mpeg4_encode_mb()

◆ ff_mpeg4_pred_ac()

◆ ff_set_mpeg4_time()

◆ ff_mpeg4_encode_picture_header()

◆ ff_mpeg4_decode_picture_header()

◆ ff_mpeg4_encode_video_packet_header()

◆ ff_mpeg4_clean_buffers()

◆ ff_mpeg4_stuffing()

◆ ff_mpeg4_init_partitions()

◆ ff_mpeg4_merge_partitions()

◆ ff_clean_mpeg4_qscales()

◆ ff_mpeg4_decode_partitions()

◆ ff_mpeg4_get_video_packet_prefix_length()

◆ ff_mpeg4_decode_video_packet_header()

◆ ff_mpeg4_decode_studio_slice_header()

◆ ff_mpeg4_init_direct_mv()

◆ ff_mpeg4videodec_static_init()

◆ ff_mpeg4_workaround_bugs()

◆ ff_mpeg4_frame_end()

◆ ff_mpeg4_set_direct_mv()

◆ ff_mpeg4_pred_dc()

Variable Documentation

◆ mpeg4_block_count

◆ ff_mpeg4_DCtab_lum

◆ ff_mpeg4_DCtab_chrom

◆ ff_mpeg4_intra_vlc

◆ ff_mpeg4_intra_level

◆ ff_mpeg4_intra_run

◆ ff_mpeg4_rl_intra

◆ ff_rvlc_rl_inter

◆ ff_rvlc_rl_intra

◆ ff_sprite_trajectory_tab

◆ ff_mb_type_b_tab

◆ ff_mpeg4_default_intra_matrix

◆ ff_mpeg4_default_non_intra_matrix

◆ ff_mpeg4_y_dc_scale_table

◆ ff_mpeg4_c_dc_scale_table

◆ ff_mpeg4_resync_prefix

◆ ff_mpeg4_dc_threshold

◆ ff_mpeg4_studio_dc_luma

◆ ff_mpeg4_studio_dc_chroma

◆ ff_mpeg4_studio_intra

◆ ff_mpeg4_static_rl_table_store