FFmpeg
Data Structures | Macros | Functions
mpegvideo.h File Reference
#include "avcodec.h"
#include "blockdsp.h"
#include "error_resilience.h"
#include "fdctdsp.h"
#include "get_bits.h"
#include "h264chroma.h"
#include "h263dsp.h"
#include "hpeldsp.h"
#include "idctdsp.h"
#include "me_cmp.h"
#include "motion_est.h"
#include "mpegpicture.h"
#include "mpegvideodsp.h"
#include "mpegvideoencdsp.h"
#include "pixblockdsp.h"
#include "put_bits.h"
#include "ratecontrol.h"
#include "parser.h"
#include "mpegutils.h"
#include "qpeldsp.h"
#include "videodsp.h"

Go to the source code of this file.

Data Structures

struct  MpegEncContext
 MpegEncContext. More...
 

Macros

#define MAX_THREADS   32
 
#define MAX_B_FRAMES   16
 
#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 VIDEO_FORMAT_COMPONENT   0
 
#define VIDEO_FORMAT_PAL   1
 
#define VIDEO_FORMAT_NTSC   2
 
#define VIDEO_FORMAT_SECAM   3
 
#define VIDEO_FORMAT_MAC   4
 
#define VIDEO_FORMAT_UNSPECIFIED   5
 
#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...
 

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...
 
void ff_mpv_common_init_arm (MpegEncContext *s)
 
void ff_mpv_common_init_axp (MpegEncContext *s)
 
void ff_mpv_common_init_neon (MpegEncContext *s)
 
void ff_mpv_common_init_ppc (MpegEncContext *s)
 
void ff_mpv_common_init_x86 (MpegEncContext *s)
 
void ff_mpv_common_init_mips (MpegEncContext *s)
 
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_mpv_reconstruct_mb (MpegEncContext *s, int16_t block[12][64])
 
void ff_clean_intra_table_entries (MpegEncContext *s)
 Clean dc, ac, coded_block 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_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, op_pixels_func(*pix_op)[4], 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 55 of file mpegvideo.h.

◆ MAX_B_FRAMES

#define MAX_B_FRAMES   16

Definition at line 57 of file mpegvideo.h.

◆ MV_DIR_FORWARD

#define MV_DIR_FORWARD   1

Definition at line 251 of file mpegvideo.h.

◆ MV_DIR_BACKWARD

#define MV_DIR_BACKWARD   2

Definition at line 252 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 253 of file mpegvideo.h.

◆ MV_TYPE_16X16

#define MV_TYPE_16X16   0

1 vector for the whole mb

Definition at line 255 of file mpegvideo.h.

◆ MV_TYPE_8X8

#define MV_TYPE_8X8   1

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

Definition at line 256 of file mpegvideo.h.

◆ MV_TYPE_16X8

#define MV_TYPE_16X8   2

2 vectors, one per 16x8 block

Definition at line 257 of file mpegvideo.h.

◆ MV_TYPE_FIELD

#define MV_TYPE_FIELD   3

2 vectors, one per field

Definition at line 258 of file mpegvideo.h.

◆ MV_TYPE_DMV

#define MV_TYPE_DMV   4

2 vectors, special mpeg2 Dual Prime Vectors

Definition at line 259 of file mpegvideo.h.

◆ VIDEO_FORMAT_COMPONENT

#define VIDEO_FORMAT_COMPONENT   0

Definition at line 448 of file mpegvideo.h.

◆ VIDEO_FORMAT_PAL

#define VIDEO_FORMAT_PAL   1

Definition at line 449 of file mpegvideo.h.

◆ VIDEO_FORMAT_NTSC

#define VIDEO_FORMAT_NTSC   2

Definition at line 450 of file mpegvideo.h.

◆ VIDEO_FORMAT_SECAM

#define VIDEO_FORMAT_SECAM   3

Definition at line 451 of file mpegvideo.h.

◆ VIDEO_FORMAT_MAC

#define VIDEO_FORMAT_MAC   4

Definition at line 452 of file mpegvideo.h.

◆ VIDEO_FORMAT_UNSPECIFIED

#define VIDEO_FORMAT_UNSPECIFIED   5

Definition at line 453 of file mpegvideo.h.

◆ CHROMA_420

#define CHROMA_420   1

Definition at line 457 of file mpegvideo.h.

◆ CHROMA_422

#define CHROMA_422   2

Definition at line 458 of file mpegvideo.h.

◆ CHROMA_444

#define CHROMA_444   3

Definition at line 459 of file mpegvideo.h.

◆ SLICE_OK

#define SLICE_OK   0

Definition at line 479 of file mpegvideo.h.

◆ SLICE_ERROR

#define SLICE_ERROR   -1

Definition at line 480 of file mpegvideo.h.

◆ SLICE_END

#define SLICE_END   -2

end marker found

Definition at line 481 of file mpegvideo.h.

◆ SLICE_NOEND

#define SLICE_NOEND   -3

no end marker or error found but mb count exceeded

Definition at line 482 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 507 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 743 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(), h261_decode_frame(), mpeg_decode_postinit(), rv10_decode_init(), rv20_decode_picture_header(), svq1_encode_init(), and vcr2_init_sequence().

◆ ff_mpv_common_init_arm()

void ff_mpv_common_init_arm ( MpegEncContext s)

Definition at line 44 of file mpegvideo_arm.c.

Referenced by dct_init().

◆ ff_mpv_common_init_axp()

void ff_mpv_common_init_axp ( MpegEncContext s)

Definition at line 106 of file mpegvideo_alpha.c.

Referenced by dct_init().

◆ ff_mpv_common_init_neon()

void ff_mpv_common_init_neon ( MpegEncContext s)

Definition at line 127 of file mpegvideo.c.

Referenced by dct_init().

◆ ff_mpv_common_init_ppc()

void ff_mpv_common_init_ppc ( MpegEncContext s)

Definition at line 119 of file mpegvideo_altivec.c.

Referenced by dct_init().

◆ ff_mpv_common_init_x86()

void ff_mpv_common_init_x86 ( MpegEncContext s)

Definition at line 454 of file mpegvideo.c.

Referenced by dct_init().

◆ ff_mpv_common_init_mips()

void ff_mpv_common_init_mips ( MpegEncContext s)

Definition at line 26 of file mpegvideo_init_mips.c.

Referenced by dct_init().

◆ 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 396 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 525 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 825 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)

◆ ff_mpv_reconstruct_mb()

void ff_mpv_reconstruct_mb ( MpegEncContext s,
int16_t  block[12][64] 
)

◆ ff_clean_intra_table_entries()

void ff_clean_intra_table_entries ( MpegEncContext s)

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

Definition at line 1371 of file mpegvideo.c.

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

◆ ff_update_duplicate_context()

int ff_update_duplicate_context ( MpegEncContext dst,
const MpegEncContext src 
)

Definition at line 476 of file mpegvideo.c.

Referenced by decode_chunks(), and encode_picture().

◆ ff_set_qscale()

void ff_set_qscale ( MpegEncContext s,
int  qscale 
)

◆ ff_mpv_idct_init()

void ff_mpv_idct_init ( MpegEncContext s)

◆ ff_init_block_index()

void ff_init_block_index ( MpegEncContext s)

◆ 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,
op_pixels_func(*)  pix_op[4],
qpel_mc_func(*)  qpix_op[16] 
)

Definition at line 975 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 
)
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