libavcodec/mpegvideo.h File Reference

mpegvideo header. More...

#include "dsputil.h"
#include "bitstream.h"
#include "ratecontrol.h"
#include "parser.h"
#include "mpeg12data.h"
#include "rl.h"

Go to the source code of this file.

Data Structures

struct  Picture
 Picture. More...
struct  MotionEstContext
 Motion estimation context. More...
struct  MpegEncContext
 MpegEncContext. More...

Defines

#define FRAME_SKIPPED   100
 return value for header parsers if frame is not coded
#define MPEG_BUF_SIZE   (16 * 1024)
#define QMAT_SHIFT_MMX   16
#define QMAT_SHIFT   22
#define MAX_FCODE   7
#define MAX_MV   2048
#define MAX_THREADS   8
#define MAX_PICTURE_COUNT   32
#define ME_MAP_SIZE   64
#define ME_MAP_SHIFT   3
#define ME_MAP_MV_BITS   11
#define MAX_MB_BYTES   (30*16*16*3/8 + 120)
#define INPLACE_OFFSET   16
#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 MB_TYPE_INTRA   MB_TYPE_INTRA4x4
#define IS_INTRA4x4(a)   ((a)&MB_TYPE_INTRA4x4)
#define IS_INTRA16x16(a)   ((a)&MB_TYPE_INTRA16x16)
#define IS_PCM(a)   ((a)&MB_TYPE_INTRA_PCM)
#define IS_INTRA(a)   ((a)&7)
#define IS_INTER(a)   ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))
#define IS_SKIP(a)   ((a)&MB_TYPE_SKIP)
#define IS_INTRA_PCM(a)   ((a)&MB_TYPE_INTRA_PCM)
#define IS_INTERLACED(a)   ((a)&MB_TYPE_INTERLACED)
#define IS_DIRECT(a)   ((a)&MB_TYPE_DIRECT2)
#define IS_GMC(a)   ((a)&MB_TYPE_GMC)
#define IS_16X16(a)   ((a)&MB_TYPE_16x16)
#define IS_16X8(a)   ((a)&MB_TYPE_16x8)
#define IS_8X16(a)   ((a)&MB_TYPE_8x16)
#define IS_8X8(a)   ((a)&MB_TYPE_8x8)
#define IS_SUB_8X8(a)   ((a)&MB_TYPE_16x16)
#define IS_SUB_8X4(a)   ((a)&MB_TYPE_16x8)
#define IS_SUB_4X8(a)   ((a)&MB_TYPE_8x16)
#define IS_SUB_4X4(a)   ((a)&MB_TYPE_8x8)
#define IS_ACPRED(a)   ((a)&MB_TYPE_ACPRED)
#define IS_QUANT(a)   ((a)&MB_TYPE_QUANT)
#define IS_DIR(a, part, list)   ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
#define USES_LIST(a, list)   ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list))))
 does this mb use listX, note does not work if subMBs
#define HAS_CBP(a)   ((a)&MB_TYPE_CBP)
#define PREV_PICT_TYPES_BUFFER_SIZE   256
#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 (mpeg4)
#define MV_TYPE_16X16   0
 1 vector for the whole mb
#define MV_TYPE_8X8   1
 4 vectors (h263, mpeg4 4MV)
#define MV_TYPE_16X8   2
 2 vectors, one per 16x8 block
#define MV_TYPE_FIELD   3
 2 vectors, one per field
#define MV_TYPE_DMV   4
 2 vectors, special mpeg2 Dual Prime Vectors
#define CANDIDATE_MB_TYPE_INTRA   0x01
#define CANDIDATE_MB_TYPE_INTER   0x02
#define CANDIDATE_MB_TYPE_INTER4V   0x04
#define CANDIDATE_MB_TYPE_SKIPPED   0x08
#define CANDIDATE_MB_TYPE_DIRECT   0x10
#define CANDIDATE_MB_TYPE_FORWARD   0x20
#define CANDIDATE_MB_TYPE_BACKWARD   0x40
#define CANDIDATE_MB_TYPE_BIDIR   0x80
#define CANDIDATE_MB_TYPE_INTER_I   0x100
#define CANDIDATE_MB_TYPE_FORWARD_I   0x200
#define CANDIDATE_MB_TYPE_BACKWARD_I   0x400
#define CANDIDATE_MB_TYPE_BIDIR_I   0x800
#define CANDIDATE_MB_TYPE_DIRECT0   0x1000
#define QUANT_BIAS_SHIFT   8
#define UNI_AC_ENC_INDEX(run, level)   ((run)*128 + (level))
#define VP_START   1
 current MB is the first after a resync marker
#define AC_ERROR   2
#define DC_ERROR   4
#define MV_ERROR   8
#define AC_END   16
#define DC_END   32
#define MV_END   64
#define PICT_TOP_FIELD   1
#define PICT_BOTTOM_FIELD   2
#define PICT_FRAME   3
#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
#define SLICE_NOEND   -3
 no end marker or error found but mb count exceeded

Enumerations

enum  OutputFormat {
  FMT_MPEG1, FMT_H261, FMT_H263, FMT_MJPEG,
  FMT_H264
}

Functions

void MPV_decode_defaults (MpegEncContext *s)
 sets the given MpegEncContext to defaults for decoding.
int MPV_common_init (MpegEncContext *s)
 init common structure for both encoder and decoder.
void MPV_common_end (MpegEncContext *s)
void MPV_decode_mb (MpegEncContext *s, DCTELEM block[12][64])
int MPV_frame_start (MpegEncContext *s, AVCodecContext *avctx)
 generic function for encode/decode called after coding/decoding the header and before a frame is coded/decoded
void MPV_frame_end (MpegEncContext *s)
int MPV_encode_init (AVCodecContext *avctx)
int MPV_encode_end (AVCodecContext *avctx)
int MPV_encode_picture (AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data)
void MPV_common_init_mmx (MpegEncContext *s)
void MPV_common_init_axp (MpegEncContext *s)
void MPV_common_init_mlib (MpegEncContext *s)
void MPV_common_init_mmi (MpegEncContext *s)
void MPV_common_init_arm (MpegEncContext *s)
void MPV_common_init_altivec (MpegEncContext *s)
void ff_clean_intra_table_entries (MpegEncContext *s)
 cleans dc, ac, coded_block for the current non intra MB
void ff_draw_horiz_band (MpegEncContext *s, int y, int h)
void ff_mpeg_flush (AVCodecContext *avctx)
void ff_print_debug_info (MpegEncContext *s, AVFrame *pict)
 prints debuging info for the given picture.
void ff_write_quant_matrix (PutBitContext *pb, uint16_t *matrix)
int ff_find_unused_picture (MpegEncContext *s, int shared)
void ff_denoise_dct (MpegEncContext *s, DCTELEM *block)
void ff_update_duplicate_context (MpegEncContext *dst, MpegEncContext *src)
const uint8_t * ff_find_start_code (const uint8_t *p, const uint8_t *end, uint32_t *state)
void ff_er_frame_start (MpegEncContext *s)
void ff_er_frame_end (MpegEncContext *s)
void ff_er_add_slice (MpegEncContext *s, int startx, int starty, int endx, int endy, int status)
 adds a slice.
int ff_dct_common_init (MpegEncContext *s)
void ff_convert_matrix (DSPContext *dsp, int(*qmat)[64], uint16_t(*qmat16)[2][64], const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
void ff_init_block_index (MpegEncContext *s)
void ff_copy_picture (Picture *dst, Picture *src)
static void ff_update_block_index (MpegEncContext *s)
static int get_bits_diff (MpegEncContext *s)
static int ff_h263_round_chroma (int x)
void ff_estimate_p_frame_motion (MpegEncContext *s, int mb_x, int mb_y)
void ff_estimate_b_frame_motion (MpegEncContext *s, int mb_x, int mb_y)
int ff_get_best_fcode (MpegEncContext *s, int16_t(*mv_table)[2], int type)
void ff_fix_long_p_mvs (MpegEncContext *s)
void ff_fix_long_mvs (MpegEncContext *s, uint8_t *field_select_table, int field_select, int16_t(*mv_table)[2], int f_code, int type, int truncate)
int ff_init_me (MpegEncContext *s)
int ff_pre_estimate_p_frame_motion (MpegEncContext *s, int mb_x, int mb_y)
int ff_epzs_motion_search (MpegEncContext *s, int *mx_ptr, int *my_ptr, int P[10][2], int src_index, int ref_index, int16_t(*last_mv)[2], int ref_mv_scale, int size, int h)
int ff_get_mb_score (MpegEncContext *s, int mx, int my, int src_index, int ref_index, int size, int h, int add_rate)
void mpeg1_encode_picture_header (MpegEncContext *s, int picture_number)
void mpeg1_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
void ff_mpeg1_encode_init (MpegEncContext *s)
void ff_mpeg1_encode_slice_header (MpegEncContext *s)
void ff_mpeg1_clean_buffers (MpegEncContext *s)
int ff_mpeg1_find_frame_end (ParseContext *pc, const uint8_t *buf, int buf_size)
 Finds the end of the current frame in the bitstream.
void ff_h261_loop_filter (MpegEncContext *s)
void ff_h261_reorder_mb_index (MpegEncContext *s)
void ff_h261_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
void ff_h261_encode_picture_header (MpegEncContext *s, int picture_number)
void ff_h261_encode_init (MpegEncContext *s)
int ff_h261_get_picture_format (int width, int height)
int ff_h263_decode_init (AVCodecContext *avctx)
int ff_h263_decode_frame (AVCodecContext *avctx, void *data, int *data_size, const uint8_t *buf, int buf_size)
int ff_h263_decode_end (AVCodecContext *avctx)
void h263_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
void mpeg4_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
void h263_encode_picture_header (MpegEncContext *s, int picture_number)
void ff_flv_encode_picture_header (MpegEncContext *s, int picture_number)
void h263_encode_gob_header (MpegEncContext *s, int mb_line)
int16_t * h263_pred_motion (MpegEncContext *s, int block, int dir, int *px, int *py)
void mpeg4_pred_ac (MpegEncContext *s, DCTELEM *block, int n, int dir)
 predicts the ac.
void ff_set_mpeg4_time (MpegEncContext *s)
void mpeg4_encode_picture_header (MpegEncContext *s, int picture_number)
void h263_encode_init (MpegEncContext *s)
void h263_decode_init_vlc (MpegEncContext *s)
int h263_decode_picture_header (MpegEncContext *s)
int ff_h263_decode_gob_header (MpegEncContext *s)
int ff_mpeg4_decode_picture_header (MpegEncContext *s, GetBitContext *gb)
 decode mpeg4 headers
void ff_h263_update_motion_val (MpegEncContext *s)
void ff_h263_loop_filter (MpegEncContext *s)
void ff_set_qscale (MpegEncContext *s, int qscale)
 set qscale and update qscale dependent variables.
int ff_h263_decode_mba (MpegEncContext *s)
void ff_h263_encode_mba (MpegEncContext *s)
int intel_h263_decode_picture_header (MpegEncContext *s)
int flv_h263_decode_picture_header (MpegEncContext *s)
int ff_h263_decode_mb (MpegEncContext *s, DCTELEM block[6][64])
int ff_mpeg4_decode_mb (MpegEncContext *s, DCTELEM block[6][64])
int h263_get_picture_format (int width, int height)
void ff_mpeg4_encode_video_packet_header (MpegEncContext *s)
void ff_mpeg4_clean_buffers (MpegEncContext *s)
void ff_mpeg4_stuffing (PutBitContext *pbc)
void ff_mpeg4_init_partitions (MpegEncContext *s)
void ff_mpeg4_merge_partitions (MpegEncContext *s)
void ff_clean_mpeg4_qscales (MpegEncContext *s)
void ff_clean_h263_qscales (MpegEncContext *s)
int ff_mpeg4_decode_partitions (MpegEncContext *s)
 decodes the first & second partition
int ff_mpeg4_get_video_packet_prefix_length (MpegEncContext *s)
int ff_h263_resync (MpegEncContext *s)
 decodes the group of blocks / video packet header.
const uint8_t * ff_h263_find_resync_marker (const uint8_t *p, const uint8_t *end)
int ff_h263_get_gob_height (MpegEncContext *s)
 Get the GOB height based on picture height.
void ff_mpeg4_init_direct_mv (MpegEncContext *s)
int ff_mpeg4_set_direct_mv (MpegEncContext *s, int mx, int my)
void ff_h263_encode_motion (MpegEncContext *s, int val, int f_code)
void rv10_encode_picture_header (MpegEncContext *s, int picture_number)
int rv_decode_dc (MpegEncContext *s, int n)
void rv20_encode_picture_header (MpegEncContext *s, int picture_number)
void msmpeg4_encode_picture_header (MpegEncContext *s, int picture_number)
void msmpeg4_encode_ext_header (MpegEncContext *s)
void msmpeg4_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
int msmpeg4_decode_picture_header (MpegEncContext *s)
int msmpeg4_decode_ext_header (MpegEncContext *s, int buf_size)
int ff_msmpeg4_decode_init (MpegEncContext *s)
void ff_msmpeg4_encode_init (MpegEncContext *s)
int ff_wmv2_decode_picture_header (MpegEncContext *s)
int ff_wmv2_decode_secondary_picture_header (MpegEncContext *s)
void ff_wmv2_add_mb (MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr)
void ff_mspel_motion (MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h)
int ff_wmv2_encode_picture_header (MpegEncContext *s, int picture_number)
void ff_wmv2_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)

Variables

enum PixelFormat ff_pixfmt_list_420 []
enum PixelFormat ff_hwaccel_pixfmt_list_420 []
const uint8_t ff_mpeg1_dc_scale_table [128]
const uint8_t ff_mpeg4_y_dc_scale_table [32]
const uint8_t ff_mpeg4_c_dc_scale_table [32]
const uint8_t ff_aic_dc_scale_table [32]
const int16_t ff_mpeg4_default_intra_matrix [64]
const int16_t ff_mpeg4_default_non_intra_matrix [64]
const uint8_t ff_h263_chroma_qscale_table [32]
const uint8_t ff_h263_loop_filter_strength [32]


Detailed Description

mpegvideo header.

Definition in file mpegvideo.h.


Define Documentation

#define AC_END   16

#define AC_ERROR   2

#define CANDIDATE_MB_TYPE_BACKWARD   0x40

#define CANDIDATE_MB_TYPE_BACKWARD_I   0x400

#define CANDIDATE_MB_TYPE_BIDIR   0x80

#define CANDIDATE_MB_TYPE_BIDIR_I   0x800

#define CANDIDATE_MB_TYPE_DIRECT   0x10

Definition at line 389 of file mpegvideo.h.

Referenced by encode_thread(), and ff_estimate_b_frame_motion().

#define CANDIDATE_MB_TYPE_DIRECT0   0x1000

Definition at line 399 of file mpegvideo.h.

Referenced by encode_thread(), and ff_estimate_b_frame_motion().

#define CANDIDATE_MB_TYPE_FORWARD   0x20

#define CANDIDATE_MB_TYPE_FORWARD_I   0x200

#define CANDIDATE_MB_TYPE_INTER   0x02

#define CANDIDATE_MB_TYPE_INTER4V   0x04

#define CANDIDATE_MB_TYPE_INTER_I   0x100

#define CANDIDATE_MB_TYPE_INTRA   0x01

#define CANDIDATE_MB_TYPE_SKIPPED   0x08

Definition at line 386 of file mpegvideo.h.

Referenced by encode_thread(), and ff_estimate_p_frame_motion().

#define CHROMA_420   1

#define CHROMA_422   2

Definition at line 623 of file mpegvideo.h.

Referenced by encode_mb_internal(), and MPV_encode_init().

#define CHROMA_444   3

Definition at line 624 of file mpegvideo.h.

#define DC_END   32

#define DC_ERROR   4

#define EXT_START_CODE   0x000001b5

Definition at line 75 of file mpegvideo.h.

#define FRAME_SKIPPED   100

return value for header parsers if frame is not coded

Definition at line 38 of file mpegvideo.h.

Referenced by decode_vop_header(), ff_h263_decode_frame(), ff_mpeg4_decode_picture_header(), and rv20_decode_picture_header().

#define GOP_START_CODE   0x000001b8

Definition at line 71 of file mpegvideo.h.

Referenced by decode_chunks(), and mpeg1_encode_sequence_header().

#define HAS_CBP (  )     ((a)&MB_TYPE_CBP)

Definition at line 113 of file mpegvideo.h.

Referenced by ff_h261_encode_mb(), ff_h263_decode_mb(), h261_decode_mb(), and mpeg_decode_mb().

#define INPLACE_OFFSET   16

Definition at line 66 of file mpegvideo.h.

Referenced by estimate_best_b_count(), load_input_picture(), and select_input_picture().

#define IS_16X16 (  )     ((a)&MB_TYPE_16x16)

#define IS_16X8 (  )     ((a)&MB_TYPE_16x8)

Definition at line 102 of file mpegvideo.h.

Referenced by decode_mb_cabac(), decode_mb_cavlc(), ff_print_debug_info(), and hl_motion().

#define IS_8X16 (  )     ((a)&MB_TYPE_8x16)

Definition at line 103 of file mpegvideo.h.

Referenced by decode_mb_cabac(), decode_mb_cavlc(), ff_print_debug_info(), and hl_motion().

#define IS_8X8 (  )     ((a)&MB_TYPE_8x8)

#define IS_ACPRED (  )     ((a)&MB_TYPE_ACPRED)

Definition at line 109 of file mpegvideo.h.

Referenced by ff_print_debug_info(), and mpeg4_decode_partitioned_mb().

#define IS_DIR ( a,
part,
list   )     ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))

Definition at line 111 of file mpegvideo.h.

Referenced by decode_mb_cabac(), decode_mb_cavlc(), and hl_motion().

#define IS_DIRECT (  )     ((a)&MB_TYPE_DIRECT2)

#define IS_GMC (  )     ((a)&MB_TYPE_GMC)

Definition at line 100 of file mpegvideo.h.

Referenced by ff_print_debug_info().

#define IS_INTER (  )     ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))

#define IS_INTERLACED (  )     ((a)&MB_TYPE_INTERLACED)

#define IS_INTRA (  )     ((a)&7)

#define IS_INTRA16x16 (  )     ((a)&MB_TYPE_INTRA16x16)

#define IS_INTRA4x4 (  )     ((a)&MB_TYPE_INTRA4x4)

#define IS_INTRA_PCM (  )     ((a)&MB_TYPE_INTRA_PCM)

Definition at line 97 of file mpegvideo.h.

Referenced by decode_mb_cabac(), decode_mb_cavlc(), hl_decode_mb(), and hl_decode_mb_internal().

#define IS_PCM (  )     ((a)&MB_TYPE_INTRA_PCM)

Definition at line 93 of file mpegvideo.h.

Referenced by ff_print_debug_info().

#define IS_QUANT (  )     ((a)&MB_TYPE_QUANT)

Definition at line 110 of file mpegvideo.h.

Referenced by ff_h261_encode_mb(), ff_h263_decode_mb(), h261_decode_mb(), and mpeg_decode_mb().

#define IS_SKIP (  )     ((a)&MB_TYPE_SKIP)

#define IS_SUB_4X4 (  )     ((a)&MB_TYPE_8x8)

Definition at line 108 of file mpegvideo.h.

Referenced by hl_motion().

#define IS_SUB_4X8 (  )     ((a)&MB_TYPE_8x16)

Definition at line 107 of file mpegvideo.h.

Referenced by decode_mb_cabac(), decode_mb_cavlc(), and hl_motion().

#define IS_SUB_8X4 (  )     ((a)&MB_TYPE_16x8)

Definition at line 106 of file mpegvideo.h.

Referenced by decode_mb_cabac(), decode_mb_cavlc(), and hl_motion().

#define IS_SUB_8X8 (  )     ((a)&MB_TYPE_16x16)

Definition at line 105 of file mpegvideo.h.

Referenced by decode_mb_cabac(), decode_mb_cavlc(), hl_motion(), and pred_direct_motion().

#define MAX_FCODE   7

Definition at line 53 of file mpegvideo.h.

Referenced by ff_mpeg1_encode_init().

#define MAX_MB_BYTES   (30*16*16*3/8 + 120)

Definition at line 64 of file mpegvideo.h.

Referenced by encode_thread().

#define MAX_MV   2048

#define MAX_PICTURE_COUNT   32

#define MAX_THREADS   8

Definition at line 56 of file mpegvideo.h.

Referenced by dnxhd_encode_init(), and MPV_common_init().

#define MB_TYPE_INTRA   MB_TYPE_INTRA4x4

#define ME_MAP_MV_BITS   11

#define ME_MAP_SHIFT   3

#define ME_MAP_SIZE   64

#define MPEG_BUF_SIZE   (16 * 1024)

Definition at line 48 of file mpegvideo.h.

#define MV_DIR_BACKWARD   2

#define MV_DIR_FORWARD   1

#define MV_DIRECT   4

bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)

Definition at line 352 of file mpegvideo.h.

Referenced by encode_mb_internal(), encode_thread(), ff_h263_decode_mb(), and ff_mpeg4_decode_mb().

#define MV_END   64

#define MV_ERROR   8

#define MV_TYPE_16X16   0

#define MV_TYPE_16X8   2

2 vectors, one per 16x8 block

Definition at line 356 of file mpegvideo.h.

Referenced by ff_xvmc_decode_mb(), mpeg_decode_mb(), MPV_motion_internal(), and MPV_motion_lowres().

#define MV_TYPE_8X8   1

#define MV_TYPE_DMV   4

2 vectors, special mpeg2 Dual Prime Vectors

Definition at line 358 of file mpegvideo.h.

Referenced by ff_xvmc_decode_mb(), mpeg_decode_mb(), MPV_motion_internal(), and MPV_motion_lowres().

#define MV_TYPE_FIELD   3

#define PICT_BOTTOM_FIELD   2

#define PICT_FRAME   3

#define PICT_TOP_FIELD   1

#define PICTURE_START_CODE   0x00000100

#define PREV_PICT_TYPES_BUFFER_SIZE   256

Definition at line 294 of file mpegvideo.h.

Referenced by alloc_picture(), and MPV_common_init().

#define QMAT_SHIFT   22

#define QMAT_SHIFT_MMX   16

Definition at line 50 of file mpegvideo.h.

Referenced by ff_convert_matrix().

#define QUANT_BIAS_SHIFT   8

#define SEQ_END_CODE   0x000001b7

Definition at line 69 of file mpegvideo.h.

Referenced by ff_mpeg1_find_frame_end(), and mpeg_decode_frame().

#define SEQ_START_CODE   0x000001b3

#define SLICE_END   -2

#define SLICE_ERROR   -1

Definition at line 645 of file mpegvideo.h.

Referenced by h261_decode_mb(), and rv10_decode_packet().

#define SLICE_MAX_START_CODE   0x000001af

Definition at line 74 of file mpegvideo.h.

#define SLICE_MIN_START_CODE   0x00000101

#define SLICE_NOEND   -3

no end marker or error found but mb count exceeded

Definition at line 647 of file mpegvideo.h.

Referenced by decode_slice(), and mpeg4_decode_partitioned_mb().

#define SLICE_OK   0

#define UNI_AC_ENC_INDEX ( run,
level   )     ((run)*128 + (level))

#define USER_START_CODE   0x000001b2

Definition at line 76 of file mpegvideo.h.

#define USES_LIST ( a,
list   )     ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list))))

does this mb use listX, note does not work if subMBs

Definition at line 112 of file mpegvideo.h.

Referenced by check_input_motion(), ff_h263_decode_mb(), ff_mpeg4_decode_mb(), ff_print_debug_info(), fill_caches(), hl_decode_mb_internal(), mpeg_decode_mb(), and write_back_motion().

#define VP_START   1

current MB is the first after a resync marker

Definition at line 470 of file mpegvideo.h.

Referenced by ff_er_add_slice(), ff_er_frame_end(), and ff_er_frame_start().


Enumeration Type Documentation

Enumerator:
FMT_MPEG1 
FMT_H261 
FMT_H263 
FMT_MJPEG 
FMT_H264 

Definition at line 40 of file mpegvideo.h.


Function Documentation

void ff_clean_h263_qscales ( MpegEncContext s  ) 

Referenced by estimate_qp().

void ff_clean_intra_table_entries ( MpegEncContext s  ) 

cleans dc, ac, coded_block for the current non intra MB

Definition at line 1702 of file mpegvideo.c.

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

void ff_clean_mpeg4_qscales ( MpegEncContext s  ) 

Referenced by estimate_qp().

void ff_convert_matrix ( DSPContext dsp,
int(*)  qmat[64],
uint16_t(*)  qmat16[2][64],
const uint16_t *  quant_matrix,
int  bias,
int  qmin,
int  qmax,
int  intra 
)

Definition at line 56 of file mpegvideo_enc.c.

Referenced by dnxhd_init_qmat(), encode_picture(), and MPV_encode_init().

void ff_copy_picture ( Picture dst,
Picture src 
)

Definition at line 162 of file mpegvideo.c.

Referenced by decode_slice_header(), and select_input_picture().

int ff_dct_common_init ( MpegEncContext s  ) 

Definition at line 119 of file mpegvideo.c.

Referenced by dnxhd_encode_init(), and MPV_common_init().

void ff_denoise_dct ( MpegEncContext s,
DCTELEM block 
)

void ff_draw_horiz_band ( MpegEncContext s,
int  y,
int  h 
)

int ff_epzs_motion_search ( MpegEncContext s,
int *  mx_ptr,
int *  my_ptr,
int  P[10][2],
int  src_index,
int  ref_index,
int16_t(*)  last_mv[2],
int  ref_mv_scale,
int  size,
int  h 
) [inline]

void ff_er_add_slice ( MpegEncContext s,
int  startx,
int  starty,
int  endx,
int  endy,
int  status 
)

adds a slice.

Parameters:
endx x component of the last macroblock, can be -1 for the last of the previous line
status the status at the end (MV_END, AC_ERROR, ...), it is assumed that no earlier end or error of the same type occurred

Definition at line 617 of file error_resilience.c.

Referenced by decode_chunks(), decode_slice(), ff_intrax8_decode_picture(), ff_mpeg4_decode_partitions(), rv10_decode_packet(), rv34_decode_slice(), slice_decode_thread(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().

void ff_er_frame_end ( MpegEncContext s  ) 

void ff_er_frame_start ( MpegEncContext s  ) 

void ff_estimate_b_frame_motion ( MpegEncContext s,
int  mb_x,
int  mb_y 
)

Definition at line 1593 of file motion_est.c.

Referenced by estimate_motion_thread().

void ff_estimate_p_frame_motion ( MpegEncContext s,
int  mb_x,
int  mb_y 
)

< the variance of the block (sum of squared (p[y][x]-average))

< sum of squared differences with the estimated motion vector

Definition at line 950 of file motion_est.c.

Referenced by estimate_motion_thread(), and svq1_encode_plane().

const uint8_t* ff_find_start_code ( const uint8_t *  p,
const uint8_t *  end,
uint32_t *  state 
)

int ff_find_unused_picture ( MpegEncContext s,
int  shared 
)

void ff_fix_long_mvs ( MpegEncContext s,
uint8_t *  field_select_table,
int  field_select,
int16_t(*)  mv_table[2],
int  f_code,
int  type,
int  truncate 
)

Parameters:
truncate 1 for truncation, 0 for using intra

Definition at line 1862 of file motion_est.c.

Referenced by encode_picture(), and svq1_encode_plane().

void ff_fix_long_p_mvs ( MpegEncContext s  ) 

Definition at line 1811 of file motion_est.c.

Referenced by encode_picture(), and svq1_encode_plane().

void ff_flv_encode_picture_header ( MpegEncContext s,
int  picture_number 
)

Referenced by encode_picture().

int ff_get_best_fcode ( MpegEncContext s,
int16_t(*)  mv_table[2],
int  type 
)

Definition at line 1752 of file motion_est.c.

Referenced by encode_picture().

int ff_get_mb_score ( MpegEncContext s,
int  mx,
int  my,
int  src_index,
int  ref_index,
int  size,
int  h,
int  add_rate 
) [inline]

void ff_h261_encode_init ( MpegEncContext s  ) 

Definition at line 237 of file h261enc.c.

Referenced by MPV_encode_init().

void ff_h261_encode_mb ( MpegEncContext s,
DCTELEM  block[6][64],
int  motion_x,
int  motion_y 
)

Definition at line 155 of file h261enc.c.

Referenced by encode_mb_internal().

void ff_h261_encode_picture_header ( MpegEncContext s,
int  picture_number 
)

Definition at line 51 of file h261enc.c.

Referenced by encode_picture().

int ff_h261_get_picture_format ( int  width,
int  height 
)

void ff_h261_loop_filter ( MpegEncContext s  ) 

Definition at line 36 of file h261.c.

Referenced by mpeg_motion_internal().

void ff_h261_reorder_mb_index ( MpegEncContext s  ) 

Definition at line 106 of file h261enc.c.

Referenced by encode_thread().

int ff_h263_decode_end ( AVCodecContext avctx  ) 

Definition at line 124 of file h263dec.c.

Referenced by wmv2_decode_end().

int ff_h263_decode_frame ( AVCodecContext avctx,
void *  data,
int *  data_size,
const uint8_t *  buf,
int  buf_size 
)

Definition at line 332 of file h263dec.c.

int ff_h263_decode_gob_header ( MpegEncContext s  ) 

int ff_h263_decode_init ( AVCodecContext avctx  ) 

Definition at line 39 of file h263dec.c.

Referenced by vc1_decode_init(), and wmv2_decode_init().

int ff_h263_decode_mb ( MpegEncContext s,
DCTELEM  block[6][64] 
)

Definition at line 3908 of file h263.c.

Referenced by ff_h263_decode_init(), and rv10_decode_packet().

int ff_h263_decode_mba ( MpegEncContext s  ) 

void ff_h263_encode_mba ( MpegEncContext s  ) 

Definition at line 2978 of file h263.c.

void ff_h263_encode_motion ( MpegEncContext s,
int  val,
int  f_code 
)

Referenced by svq1_encode_plane().

const uint8_t* ff_h263_find_resync_marker ( const uint8_t *  p,
const uint8_t *  end 
)

int ff_h263_get_gob_height ( MpegEncContext s  ) 

Get the GOB height based on picture height.

Definition at line 2955 of file h263.c.

Referenced by encode_thread(), and ff_h263_decode_frame().

void ff_h263_loop_filter ( MpegEncContext s  ) 

Definition at line 1464 of file h263.c.

Referenced by decode_slice(), encode_thread(), and rv10_decode_packet().

int ff_h263_resync ( MpegEncContext s  ) 

decodes the group of blocks / video packet header.

Returns:
bit position of the resync_marker, or <0 if none was found

Definition at line 3320 of file h263.c.

Referenced by ff_h263_decode_frame().

static int ff_h263_round_chroma ( int  x  )  [inline, static]

Definition at line 737 of file mpegvideo.h.

Referenced by chroma_4mv_motion(), chroma_4mv_motion_lowres(), and h263_mv4_search().

void ff_h263_update_motion_val ( MpegEncContext s  ) 

Definition at line 686 of file h263.c.

Referenced by decode_slice(), encode_thread(), and rv10_decode_packet().

void ff_init_block_index ( MpegEncContext s  ) 

int ff_init_me ( MpegEncContext s  ) 

Definition at line 235 of file motion_est.c.

Referenced by encode_frame(), encode_picture(), and svq1_encode_plane().

void ff_mpeg1_clean_buffers ( MpegEncContext s  ) 

Definition at line 126 of file mpeg12.c.

Referenced by encode_thread(), and mpeg_decode_slice().

void ff_mpeg1_encode_init ( MpegEncContext s  ) 

Definition at line 710 of file mpeg12enc.c.

Referenced by MPV_encode_init().

void ff_mpeg1_encode_slice_header ( MpegEncContext s  ) 

Definition at line 329 of file mpeg12enc.c.

Referenced by encode_thread(), and mpeg1_encode_picture_header().

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

Finds 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 2199 of file mpeg12.c.

Referenced by mpeg_decode_frame(), and mpegvideo_parse().

void ff_mpeg4_clean_buffers ( MpegEncContext s  ) 

Definition at line 3264 of file h263.c.

Referenced by encode_thread(), and ff_h263_decode_frame().

int ff_mpeg4_decode_mb ( MpegEncContext s,
DCTELEM  block[6][64] 
)

Definition at line 4174 of file h263.c.

Referenced by decode_vop_header(), and ff_h263_decode_init().

int ff_mpeg4_decode_partitions ( MpegEncContext s  ) 

decodes the first & second partition

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

Definition at line 3664 of file h263.c.

Referenced by decode_slice().

int ff_mpeg4_decode_picture_header ( MpegEncContext s,
GetBitContext gb 
)

decode mpeg4 headers

Returns:
<0 if no VOP found (or a damaged one) FRAME_SKIPPED if a not coded VOP is found 0 if a VOP is found

Definition at line 6080 of file h263.c.

Referenced by av_mpeg4_decode_header(), and ff_h263_decode_frame().

void ff_mpeg4_encode_video_packet_header ( MpegEncContext s  ) 

Referenced by encode_thread().

int ff_mpeg4_get_video_packet_prefix_length ( MpegEncContext s  ) 

Definition at line 3094 of file h263.c.

Referenced by mpeg4_decode_video_packet_header(), and mpeg4_is_resync().

void ff_mpeg4_init_direct_mv ( MpegEncContext s  ) 

Definition at line 592 of file h263.c.

Referenced by decode_vop_header(), and rv20_decode_picture_header().

void ff_mpeg4_init_partitions ( MpegEncContext s  ) 

Referenced by encode_thread().

void ff_mpeg4_merge_partitions ( MpegEncContext s  ) 

Referenced by write_slice_end().

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

Returns:
the mb_type

Definition at line 635 of file h263.c.

Referenced by encode_thread(), ff_h263_decode_mb(), and ff_mpeg4_decode_mb().

void ff_mpeg4_stuffing ( PutBitContext pbc  ) 

Referenced by write_slice_end().

void ff_mpeg_flush ( AVCodecContext avctx  ) 

Definition at line 2062 of file mpegvideo.c.

Referenced by flush_dpb().

int ff_msmpeg4_decode_init ( MpegEncContext s  ) 

Definition at line 1053 of file msmpeg4.c.

Referenced by ff_h263_decode_init().

void ff_msmpeg4_encode_init ( MpegEncContext s  ) 

Referenced by MPV_encode_init().

void ff_mspel_motion ( MpegEncContext s,
uint8_t *  dest_y,
uint8_t *  dest_cb,
uint8_t *  dest_cr,
uint8_t **  ref_picture,
op_pixels_func(*)  pix_op[4],
int  motion_x,
int  motion_y,
int  h 
)

Definition at line 73 of file wmv2.c.

Referenced by MPV_motion_internal().

int ff_pre_estimate_p_frame_motion ( MpegEncContext s,
int  mb_x,
int  mb_y 
)

Definition at line 1200 of file motion_est.c.

Referenced by pre_estimate_motion_thread().

void ff_print_debug_info ( MpegEncContext s,
AVFrame pict 
)

prints debuging info for the given picture.

Definition at line 1097 of file mpegvideo.c.

Referenced by decode_frame(), ff_h263_decode_frame(), ff_rv34_decode_frame(), h261_decode_frame(), rv10_decode_frame(), slice_end(), and vc1_decode_frame().

void ff_set_mpeg4_time ( MpegEncContext s  ) 

Referenced by encode_picture().

void ff_set_qscale ( MpegEncContext s,
int  qscale 
)

static void ff_update_block_index ( MpegEncContext s  )  [inline, static]

void ff_update_duplicate_context ( MpegEncContext dst,
MpegEncContext src 
)

Definition at line 360 of file mpegvideo.c.

Referenced by decode_chunks(), and encode_picture().

void ff_wmv2_add_mb ( MpegEncContext s,
DCTELEM  block[6][64],
uint8_t *  dest_y,
uint8_t *  dest_cb,
uint8_t *  dest_cr 
)

Definition at line 59 of file wmv2.c.

Referenced by MPV_decode_mb_internal().

int ff_wmv2_decode_picture_header ( MpegEncContext s  ) 

Definition at line 113 of file wmv2dec.c.

Referenced by ff_h263_decode_frame().

int ff_wmv2_decode_secondary_picture_header ( MpegEncContext s  ) 

Definition at line 143 of file wmv2dec.c.

Referenced by ff_h263_decode_frame().

void ff_wmv2_encode_mb ( MpegEncContext s,
DCTELEM  block[6][64],
int  motion_x,
int  motion_y 
)

Definition at line 163 of file wmv2enc.c.

Referenced by encode_mb_internal().

int ff_wmv2_encode_picture_header ( MpegEncContext s,
int  picture_number 
)

Definition at line 82 of file wmv2enc.c.

Referenced by encode_picture().

void ff_write_quant_matrix ( PutBitContext pb,
uint16_t *  matrix 
)

Definition at line 137 of file mpegvideo_enc.c.

Referenced by mpeg1_encode_sequence_header().

int flv_h263_decode_picture_header ( MpegEncContext s  ) 

Definition at line 6265 of file h263.c.

Referenced by ff_h263_decode_frame().

static int get_bits_diff ( MpegEncContext s  )  [inline, static]

Definition at line 728 of file mpegvideo.h.

Referenced by mpeg1_encode_mb_internal(), and write_slice_end().

void h263_decode_init_vlc ( MpegEncContext s  ) 

Definition at line 2902 of file h263.c.

Referenced by ff_h263_decode_init(), and rv10_decode_init().

int h263_decode_picture_header ( MpegEncContext s  ) 

Definition at line 5001 of file h263.c.

Referenced by ff_h263_decode_frame().

void h263_encode_gob_header ( MpegEncContext s,
int  mb_line 
)

Referenced by encode_thread().

void h263_encode_init ( MpegEncContext s  ) 

void h263_encode_mb ( MpegEncContext s,
DCTELEM  block[6][64],
int  motion_x,
int  motion_y 
)

Referenced by encode_mb_internal().

void h263_encode_picture_header ( MpegEncContext s,
int  picture_number 
)

Referenced by encode_picture().

int h263_get_picture_format ( int  width,
int  height 
)

Definition at line 121 of file h263.c.

Referenced by MPV_encode_init().

int16_t* h263_pred_motion ( MpegEncContext s,
int  block,
int  dir,
int *  px,
int *  py 
)

int intel_h263_decode_picture_header ( MpegEncContext s  ) 

Definition at line 6167 of file h263.c.

Referenced by ff_h263_decode_frame().

void mpeg1_encode_mb ( MpegEncContext s,
DCTELEM  block[6][64],
int  motion_x,
int  motion_y 
)

Definition at line 660 of file mpeg12enc.c.

Referenced by encode_mb_internal().

void mpeg1_encode_picture_header ( MpegEncContext s,
int  picture_number 
)

Definition at line 335 of file mpeg12enc.c.

Referenced by encode_picture().

void mpeg4_encode_mb ( MpegEncContext s,
DCTELEM  block[6][64],
int  motion_x,
int  motion_y 
)

Referenced by encode_mb_internal().

void mpeg4_encode_picture_header ( MpegEncContext s,
int  picture_number 
)

Referenced by encode_picture().

void mpeg4_pred_ac ( MpegEncContext s,
DCTELEM block,
int  n,
int  dir 
)

predicts the ac.

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

Definition at line 2599 of file h263.c.

Referenced by ff_msmpeg4_decode_block(), and mpeg4_decode_block().

void MPV_common_end ( MpegEncContext s  ) 

int 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 408 of file mpegvideo.c.

Referenced by decode_pic(), decode_slice_header(), ff_h263_decode_frame(), ff_h263_decode_init(), ff_rv34_decode_init(), h261_decode_frame(), MPV_encode_init(), rv10_decode_init(), rv20_decode_picture_header(), rv34_decode_slice(), svq1_decode_init(), svq3_decode_init(), and vcr2_init_sequence().

void MPV_common_init_altivec ( MpegEncContext s  ) 

Definition at line 591 of file mpegvideo_altivec.c.

Referenced by ff_dct_common_init().

void MPV_common_init_arm ( MpegEncContext s  ) 

Definition at line 28 of file mpegvideo_arm.c.

Referenced by ff_dct_common_init().

void MPV_common_init_axp ( MpegEncContext s  ) 

Definition at line 106 of file mpegvideo_alpha.c.

Referenced by ff_dct_common_init().

void MPV_common_init_mlib ( MpegEncContext s  ) 

Definition at line 452 of file dsputil_mlib.c.

Referenced by ff_dct_common_init().

void MPV_common_init_mmi ( MpegEncContext s  ) 

Definition at line 83 of file mpegvideo_mmi.c.

Referenced by ff_dct_common_init().

void MPV_common_init_mmx ( MpegEncContext s  ) 

Definition at line 626 of file mpegvideo_mmx.c.

Referenced by ff_dct_common_init().

void MPV_decode_defaults ( MpegEncContext s  ) 

sets the given MpegEncContext to defaults for decoding.

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

Definition at line 400 of file mpegvideo.c.

Referenced by decode_init(), ff_cavs_init(), ff_h263_decode_init(), ff_rv34_decode_init(), h261_decode_init(), mpeg_decode_init(), rv10_decode_init(), and svq1_decode_init().

void MPV_decode_mb ( MpegEncContext s,
DCTELEM  block[12][64] 
)

int MPV_encode_end ( AVCodecContext avctx  ) 

Definition at line 718 of file mpegvideo_enc.c.

int MPV_encode_init ( AVCodecContext avctx  ) 

Definition at line 221 of file mpegvideo_enc.c.

Referenced by encode_init(), and wmv2_encode_init().

int MPV_encode_picture ( AVCodecContext avctx,
unsigned char *  buf,
int  buf_size,
void *  data 
)

Definition at line 1183 of file mpegvideo_enc.c.

void MPV_frame_end ( MpegEncContext s  ) 

int MPV_frame_start ( MpegEncContext s,
AVCodecContext avctx 
)

generic function for encode/decode called after coding/decoding the header and before a frame is coded/decoded

Definition at line 831 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), frame_start(), h261_decode_frame(), mpeg_field_start(), MPV_encode_picture(), rv10_decode_packet(), rv34_decode_slice(), svq1_decode_frame(), and vc1_decode_frame().

int msmpeg4_decode_ext_header ( MpegEncContext s,
int  buf_size 
)

Definition at line 1326 of file msmpeg4.c.

Referenced by ff_h263_decode_frame(), and msmpeg4_decode_picture_header().

int msmpeg4_decode_picture_header ( MpegEncContext s  ) 

Definition at line 1157 of file msmpeg4.c.

Referenced by ff_h263_decode_frame().

void msmpeg4_encode_ext_header ( MpegEncContext s  ) 

Referenced by encode_thread().

void msmpeg4_encode_mb ( MpegEncContext s,
DCTELEM  block[6][64],
int  motion_x,
int  motion_y 
)

Referenced by encode_mb_internal().

void msmpeg4_encode_picture_header ( MpegEncContext s,
int  picture_number 
)

Referenced by encode_picture().

void rv10_encode_picture_header ( MpegEncContext s,
int  picture_number 
)

Referenced by encode_picture().

void rv20_encode_picture_header ( MpegEncContext s,
int  picture_number 
)

Referenced by encode_picture().

int rv_decode_dc ( MpegEncContext s,
int  n 
)

Definition at line 182 of file rv10.c.

Referenced by h263_decode_block().


Variable Documentation

const uint8_t ff_aic_dc_scale_table[32]

Definition at line 282 of file h263data.h.

Referenced by h263_decode_picture_header(), and rv10_decode_packet().

const uint8_t ff_h263_chroma_qscale_table[32]

Definition at line 296 of file h263data.h.

Referenced by h263_decode_picture_header(), MPV_encode_init(), and rv10_decode_packet().

const uint8_t ff_h263_loop_filter_strength[32]

Definition at line 83 of file mpegvideo.c.

Referenced by mpeg_get_pixelformat().

const uint8_t ff_mpeg1_dc_scale_table[128]

const uint8_t ff_mpeg4_c_dc_scale_table[32]

Definition at line 419 of file mpeg4data.h.

Referenced by common_init(), and decode_vop_header().

const int16_t ff_mpeg4_default_intra_matrix[64]

Definition at line 393 of file mpeg4data.h.

Referenced by decode_vol_header(), and MPV_encode_init().

Definition at line 404 of file mpeg4data.h.

Referenced by decode_vol_header(), and MPV_encode_init().

const uint8_t ff_mpeg4_y_dc_scale_table[32]

Definition at line 415 of file mpeg4data.h.

Referenced by common_init(), and decode_vop_header().

Definition at line 78 of file mpegvideo.c.


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