#include "blockdsp.h"
#include "error_resilience.h"
#include "get_bits.h"
#include "h264chroma.h"
#include "h263dsp.h"
#include "hpeldsp.h"
#include "idctdsp.h"
#include "mpegpicture.h"
#include "qpeldsp.h"
#include "videodsp.h"

Data Structures
struct	ScanTable
	Scantable. More...

struct	MpegEncContext
	MpegEncContext. More...

Macros
#define	MAX_THREADS 32

#define	MV_DIR_FORWARD 1

#define	MV_DIR_BACKWARD 2

#define	MV_DIRECT 4
	bidirectional mode where the difference equals the MV of the last P/S/I-Frame (MPEG-4) More...

#define	MV_TYPE_16X16 0
	1 vector for the whole mb More...

#define	MV_TYPE_8X8 1
	4 vectors (H.263, MPEG-4 4MV) More...

#define	MV_TYPE_16X8 2
	2 vectors, one per 16x8 block More...

#define	MV_TYPE_FIELD 3
	2 vectors, one per field More...

#define	MV_TYPE_DMV 4
	2 vectors, special mpeg2 Dual Prime Vectors More...

#define	CHROMA_420 1

#define	CHROMA_422 2

#define	CHROMA_444 3

#define	SLICE_OK 0

#define	SLICE_ERROR -1

#define	SLICE_END -2
	end marker found More...

#define	SLICE_NOEND -3
	no end marker or error found but mb count exceeded More...

Enumerations
enum	OutputFormat { FMT_MPEG1, FMT_H261, FMT_H263, FMT_MJPEG, FMT_SPEEDHQ }

Functions
void	ff_mpv_common_defaults (MpegEncContext *s)
	Set the given MpegEncContext to common defaults (same for encoding and decoding). More...

int	ff_mpv_common_init (MpegEncContext *s)
	init common structure for both encoder and decoder. More...

int	ff_mpv_init_duplicate_contexts (MpegEncContext *s)
	Initialize an MpegEncContext's thread contexts. More...

int	ff_mpv_init_context_frame (MpegEncContext *s)
	Initialize and allocates MpegEncContext fields dependent on the resolution. More...

void	ff_mpv_free_context_frame (MpegEncContext *s)
	Frees and resets MpegEncContext fields depending on the resolution as well as the slice thread contexts. More...

void	ff_mpv_common_end (MpegEncContext *s)

void	ff_clean_intra_table_entries (MpegEncContext *s)
	Clean dc, ac for the current non-intra MB. More...

int	ff_update_duplicate_context (MpegEncContext dst, const MpegEncContext src)

void	ff_set_qscale (MpegEncContext *s, int qscale)
	set qscale and update qscale dependent variables. More...

void	ff_mpv_idct_init (MpegEncContext *s)

void	ff_init_scantable (const uint8_t permutation, ScanTable st, const uint8_t *src_scantable)

void	ff_init_block_index (MpegEncContext *s)

void	ff_mpv_motion (MpegEncContext s, uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr, int dir, uint8_t const ref_picture, const op_pixels_func(pix_op)[4], const qpel_mc_func(qpix_op)[16])

static void	ff_update_block_index (MpegEncContext *s, int bits_per_raw_sample, int lowres, int chroma_x_shift)

Detailed Description

mpegvideo header.

Definition in file mpegvideo.h.

Macro Definition Documentation

◆ MAX_THREADS

#define MAX_THREADS 32

Definition at line 42 of file mpegvideo.h.

◆ MV_DIR_FORWARD

#define MV_DIR_FORWARD 1

Definition at line 188 of file mpegvideo.h.

◆ MV_DIR_BACKWARD

#define MV_DIR_BACKWARD 2

Definition at line 189 of file mpegvideo.h.

◆ MV_DIRECT

#define MV_DIRECT 4

bidirectional mode where the difference equals the MV of the last P/S/I-Frame (MPEG-4)

Definition at line 190 of file mpegvideo.h.

◆ MV_TYPE_16X16

#define MV_TYPE_16X16 0

1 vector for the whole mb

Definition at line 192 of file mpegvideo.h.

◆ MV_TYPE_8X8

#define MV_TYPE_8X8 1

4 vectors (H.263, MPEG-4 4MV)

Definition at line 193 of file mpegvideo.h.

◆ MV_TYPE_16X8

#define MV_TYPE_16X8 2

2 vectors, one per 16x8 block

Definition at line 194 of file mpegvideo.h.

◆ MV_TYPE_FIELD

#define MV_TYPE_FIELD 3

2 vectors, one per field

Definition at line 195 of file mpegvideo.h.

◆ MV_TYPE_DMV

#define MV_TYPE_DMV 4

2 vectors, special mpeg2 Dual Prime Vectors

Definition at line 196 of file mpegvideo.h.

◆ CHROMA_420

#define CHROMA_420 1

Definition at line 309 of file mpegvideo.h.

◆ CHROMA_422

#define CHROMA_422 2

Definition at line 310 of file mpegvideo.h.

◆ CHROMA_444

#define CHROMA_444 3

Definition at line 311 of file mpegvideo.h.

◆ SLICE_OK

#define SLICE_OK 0

Definition at line 324 of file mpegvideo.h.

◆ SLICE_ERROR

#define SLICE_ERROR -1

Definition at line 325 of file mpegvideo.h.

◆ SLICE_END

#define SLICE_END -2

end marker found

Definition at line 326 of file mpegvideo.h.

◆ SLICE_NOEND

#define SLICE_NOEND -3

no end marker or error found but mb count exceeded

Definition at line 327 of file mpegvideo.h.

Enumeration Type Documentation

◆ OutputFormat

enum OutputFormat

Enumerator
FMT_MPEG1
FMT_H261
FMT_H263
FMT_MJPEG
FMT_SPEEDHQ

Definition at line 53 of file mpegvideo.h.

Function Documentation

◆ ff_mpv_common_defaults()

void ff_mpv_common_defaults ( MpegEncContext * s )

Set the given MpegEncContext to common defaults (same for encoding and decoding).

The changed fields will not depend upon the prior state of the MpegEncContext.

Definition at line 230 of file mpegvideo.c.

Referenced by ff_mpv_decode_init(), and mpv_encode_defaults().

◆ ff_mpv_common_init()

int ff_mpv_common_init ( MpegEncContext * s )

init common structure for both encoder and decoder.

this assumes that some variables like width/height are already set

Definition at line 422 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), ff_h263_decode_init(), ff_mpeg_update_thread_context(), ff_mpv_encode_init(), ff_rv34_decode_init(), ff_vc1_decode_init(), h261_decode_frame(), mpeg_decode_postinit(), rv20_decode_picture_header(), svq1_encode_init(), and vcr2_init_sequence().

◆ ff_mpv_init_duplicate_contexts()

int ff_mpv_init_duplicate_contexts ( MpegEncContext * s )

Initialize an MpegEncContext's thread contexts.

Presumes that slice_context_count is already set and that all the fields that are freed/reset in free_duplicate_context() are NULL.

Definition at line 140 of file mpegvideo.c.

Referenced by ff_mpv_common_frame_size_change(), and ff_mpv_common_init().

◆ ff_mpv_init_context_frame()

int ff_mpv_init_context_frame ( MpegEncContext * s )

Initialize and allocates MpegEncContext fields dependent on the resolution.

Definition at line 252 of file mpegvideo.c.

Referenced by ff_mpv_common_frame_size_change(), and ff_mpv_common_init().

◆ ff_mpv_free_context_frame()

void ff_mpv_free_context_frame ( MpegEncContext * s )

Frees and resets MpegEncContext fields depending on the resolution as well as the slice thread contexts.

Is used during resolution changes to avoid a full reinitialization of the codec.

Definition at line 484 of file mpegvideo.c.

Referenced by ff_mpv_common_end(), and ff_mpv_common_frame_size_change().

◆ ff_mpv_common_end()

void ff_mpv_common_end ( MpegEncContext * s )

Definition at line 509 of file mpegvideo.c.

Referenced by ff_mpv_common_init(), ff_mpv_decode_close(), ff_mpv_encode_end(), h261_decode_frame(), mpeg_decode_postinit(), rv20_decode_picture_header(), svq1_encode_end(), vc1_decode_reset(), and vcr2_init_sequence().

◆ ff_clean_intra_table_entries()

void ff_clean_intra_table_entries ( MpegEncContext * s )

Clean dc, ac for the current non-intra MB.

Definition at line 528 of file mpegvideo.c.

Referenced by decode_slice(), encode_thread(), and mpeg4_decode_partition_a().

◆ ff_update_duplicate_context()

int ff_update_duplicate_context	(	MpegEncContext *	dst,
		const MpegEncContext *	src
	)

Definition at line 206 of file mpegvideo.c.

Referenced by decode_chunks(), and encode_picture().

◆ ff_set_qscale()

void ff_set_qscale	(	MpegEncContext *	s,
		int	qscale
	)

set qscale and update qscale dependent variables.

Definition at line 585 of file mpegvideo.c.

Referenced by decode_slice(), encode_mb_internal(), encode_thread(), h261_encode_mb(), h263_decode_dquant(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg4_decode_partitioned_mb(), and rv10_decode_packet().

◆ ff_mpv_idct_init()

void ff_mpv_idct_init ( MpegEncContext * s )

Definition at line 95 of file mpegvideo.c.

Referenced by dnxhd_encode_init(), ff_h263_decode_frame(), ff_mpeg4_workaround_bugs(), ff_mpv_decode_init(), and ff_mpv_encode_init().

◆ ff_init_scantable()

void ff_init_scantable	(	const uint8_t *	permutation,
		ScanTable *	st,
		const uint8_t *	src_scantable
	)

Definition at line 81 of file mpegvideo.c.

Referenced by decode_studio_vop_header(), decode_vop_header(), ff_mpv_idct_init(), ff_msmpeg4_common_init(), and ff_wmv2_common_init().

◆ ff_init_block_index()

void ff_init_block_index ( MpegEncContext * s )

Definition at line 552 of file mpegvideo.c.

Referenced by decode_slice(), encode_thread(), estimate_motion_thread(), ff_h261_reorder_mb_index(), h261_init_dest(), init_block_index(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg_decode_slice(), rv10_decode_packet(), and rv34_decode_slice().

◆ ff_mpv_motion()

void ff_mpv_motion	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		int	dir,
		uint8_t const	ref_picture,
		const op_pixels_func(*)	pix_op[4],
		const qpel_mc_func(*)	qpix_op[16]
	)

Definition at line 820 of file mpegvideo_motion.c.

Referenced by encode_mb_internal(), and mpv_reconstruct_mb_internal().

◆ ff_update_block_index()

static void ff_update_block_index	(	MpegEncContext *	s,
		int	bits_per_raw_sample,
		int	lowres,
		int	chroma_x_shift
	)

inlinestatic

Definition at line 390 of file mpegvideo.h.

Referenced by decode_slice(), encode_thread(), ff_h261_reorder_mb_index(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), rv10_decode_packet(), and update_block_index().

Data Structures

Macros

Enumerations

Functions