mpeg12.h File Reference

#include "mpeg12vlc.h"
#include "mpegvideo.h"

Go to the source code of this file.

Macros
#define	SEQ_END_CODE   0x000001b7
#define	SEQ_START_CODE   0x000001b3
#define	GOP_START_CODE   0x000001b8
#define	PICTURE_START_CODE   0x00000100
#define	SLICE_MIN_START_CODE   0x00000101
#define	SLICE_MAX_START_CODE   0x000001af
#define	EXT_START_CODE   0x000001b5
#define	USER_START_CODE   0x000001b2
#define	INIT_2D_VLC_RL(rl, static_size, flags)

Functions
void	ff_mpeg12_common_init (MpegEncContext *s)
void	ff_init_2d_vlc_rl (RLTable *rl, unsigned static_size, int flags)
void	ff_mpeg1_init_uni_ac_vlc (const RLTable *rl, uint8_t *uni_ac_vlc_len)
static int	decode_dc (GetBitContext *gb, int component)
int	ff_mpeg1_decode_block_intra (GetBitContext *gb, const uint16_t *quant_matrix, uint8_t *const scantable, int last_dc[3], int16_t *block, int index, int qscale)
void	ff_mpeg1_clean_buffers (MpegEncContext *s)
int	ff_mpeg1_find_frame_end (ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s)
	Find the end of the current frame in the bitstream. More...
void	ff_mpeg1_encode_picture_header (MpegEncContext *s, int picture_number)
void	ff_mpeg1_encode_mb (MpegEncContext *s, int16_t block[8][64], int motion_x, int motion_y)
void	ff_mpeg1_encode_init (MpegEncContext *s)
void	ff_mpeg1_encode_slice_header (MpegEncContext *s)
void	ff_mpeg12_find_best_frame_rate (AVRational frame_rate, int *code, int *ext_n, int *ext_d, int nonstandard)

Macro Definition Documentation

SEQ_END_CODE

#define SEQ_END_CODE   0x000001b7

Definition at line 29 of file mpeg12.h.

SEQ_START_CODE

#define SEQ_START_CODE   0x000001b3

Definition at line 30 of file mpeg12.h.

GOP_START_CODE

#define GOP_START_CODE   0x000001b8

Definition at line 31 of file mpeg12.h.

PICTURE_START_CODE

#define PICTURE_START_CODE   0x00000100

Definition at line 32 of file mpeg12.h.

SLICE_MIN_START_CODE

#define SLICE_MIN_START_CODE   0x00000101

Definition at line 33 of file mpeg12.h.

SLICE_MAX_START_CODE

#define SLICE_MAX_START_CODE   0x000001af

Definition at line 34 of file mpeg12.h.

EXT_START_CODE

#define EXT_START_CODE   0x000001b5

Definition at line 35 of file mpeg12.h.

USER_START_CODE

#define USER_START_CODE   0x000001b2

Definition at line 36 of file mpeg12.h.

INIT_2D_VLC_RL

#define INIT_2D_VLC_RL	(		rl,
			static_size,
			flags
	)

Value:

{\
    static RL_VLC_ELEM rl_vlc_table[static_size];\
    rl.rl_vlc[0] = rl_vlc_table;\
    ff_init_2d_vlc_rl(&rl, static_size, flags);\
}

Definition at line 40 of file mpeg12.h.

Function Documentation

ff_mpeg12_common_init()

void ff_mpeg12_common_init

(

MpegEncContext *

s

)

Definition at line 106 of file mpeg12.c.

Referenced by ipu_decode_init(), and mpeg_decode_init().

ff_init_2d_vlc_rl()

void ff_init_2d_vlc_rl	(	RLTable *	rl,
		unsigned	static_size,
		int	flags
	)

Definition at line 69 of file mpeg12.c.

ff_mpeg1_init_uni_ac_vlc()

void ff_mpeg1_init_uni_ac_vlc	(	const RLTable *	rl,
		uint8_t *	uni_ac_vlc_len
	)

Definition at line 68 of file mpeg12enc.c.

Referenced by speedhq_init_static_data().

decode_dc()

static int decode_dc ( GetBitContext *  gb, int  component  )

inlinestatic

Definition at line 50 of file mpeg12.h.

Referenced by ff_mpeg1_decode_block_intra(), mdec_decode_block_intra(), mpeg2_decode_block_intra(), and mpeg2_fast_decode_block_intra().

ff_mpeg1_decode_block_intra()

int ff_mpeg1_decode_block_intra	(	GetBitContext *	gb,
		const uint16_t *	quant_matrix,
		uint8_t *const	scantable,
		int	last_dc[3],
		int16_t *	block,
		int	index,
		int	qscale
	)

Definition at line 239 of file mpeg12.c.

Referenced by ipu_decode_frame(), mpeg_decode_mb(), and tqi_decode_mb().

ff_mpeg1_clean_buffers()

void ff_mpeg1_clean_buffers

(

MpegEncContext *

s

)

Definition at line 114 of file mpeg12.c.

Referenced by encode_thread(), and mpeg_decode_slice().

ff_mpeg1_find_frame_end()

int ff_mpeg1_find_frame_end	(	ParseContext *	pc,
		const uint8_t *	buf,
		int	buf_size,
		AVCodecParserContext *	s
	)

Find the end of the current frame in the bitstream.

Returns

the position of the first byte of the next frame, or -1

Definition at line 176 of file mpeg12.c.

Referenced by mpeg_decode_frame(), and mpegvideo_parse().

ff_mpeg1_encode_picture_header()

void ff_mpeg1_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Referenced by encode_picture().

ff_mpeg1_encode_mb()

void ff_mpeg1_encode_mb	(	MpegEncContext *	s,
		int16_t	block[8][64],
		int	motion_x,
		int	motion_y
	)

Referenced by encode_mb_internal().

ff_mpeg1_encode_init()

void ff_mpeg1_encode_init

(

MpegEncContext *

s

)

Referenced by ff_mpv_encode_init().

ff_mpeg1_encode_slice_header()

void ff_mpeg1_encode_slice_header

(

MpegEncContext *

s

)

Referenced by encode_thread().

ff_mpeg12_find_best_frame_rate()

void ff_mpeg12_find_best_frame_rate	(	AVRational	frame_rate,
		int *	code,
		int *	ext_n,
		int *	ext_d,
		int	nonstandard
	)

Definition at line 44 of file mpeg12framerate.c.

Referenced by mpeg2_metadata_update_fragment(), vaapi_encode_mpeg2_init_sequence_params(), and xavs2_init().