FFmpeg
Data Fields
H264Context Struct Reference

H264Context. More...

#include <h264dec.h>

Data Fields

const AVClassclass
 
AVCodecContextavctx
 
VideoDSPContext vdsp
 
H264DSPContext h264dsp
 
H264ChromaContext h264chroma
 
H264QpelContext h264qpel
 
H264Picture DPB [H264_MAX_PICTURE_COUNT]
 
H264Picturecur_pic_ptr
 
H264Picture cur_pic
 
H264Picture last_pic_for_ec
 
H264SliceContextslice_ctx
 
int nb_slice_ctx
 
int nb_slice_ctx_queued
 
H2645Packet pkt
 
int pixel_shift
 0 for 8-bit H.264, 1 for high-bit-depth H.264 More...
 
int width
 
int height
 
int chroma_x_shift
 
int chroma_y_shift
 
int droppable
 
int coded_picture_number
 
int context_initialized
 
int flags
 
int workaround_bugs
 
int x264_build
 
int postpone_filter
 
int picture_idr
 
int crop_left
 
int crop_right
 
int crop_top
 
int crop_bottom
 
int8_t * intra4x4_pred_mode
 
H264PredContext hpc
 
uint8_t(* non_zero_count )[48]
 
int block_offset [2 *(16 *3)]
 block_offset[ 0..23] for frame macroblocks block_offset[24..47] for field macroblocks More...
 
uint32_t * mb2b_xy
 
uint32_t * mb2br_xy
 
int b_stride
 
uint16_t * slice_table
 slice_table_base + 2*mb_stride + 1 More...
 
int mb_aff_frame
 
int picture_structure
 
int first_field
 
uint8_tlist_counts
 Array of list_count per MB specifying the slice type. More...
 
uint16_t * cbp_table
 
uint8_tchroma_pred_mode_table
 
uint8_t(*[2] mvd_table )[2]
 
uint8_tdirect_table
 
uint8_t scan_padding [16]
 
uint8_t zigzag_scan [16]
 
uint8_t zigzag_scan8x8 [64]
 
uint8_t zigzag_scan8x8_cavlc [64]
 
uint8_t field_scan [16]
 
uint8_t field_scan8x8 [64]
 
uint8_t field_scan8x8_cavlc [64]
 
uint8_t zigzag_scan_q0 [16]
 
uint8_t zigzag_scan8x8_q0 [64]
 
uint8_t zigzag_scan8x8_cavlc_q0 [64]
 
uint8_t field_scan_q0 [16]
 
uint8_t field_scan8x8_q0 [64]
 
uint8_t field_scan8x8_cavlc_q0 [64]
 
int mb_y
 
int mb_height
 
int mb_width
 
int mb_stride
 
int mb_num
 
int nal_ref_idc
 
int nal_unit_type
 
int has_slice
 slice NAL is found in the packet, set by decode_nal_units, its state does not need to be preserved outside h264_decode_frame() More...
 
int is_avc
 Used to parse AVC variant of H.264. More...
 
int nal_length_size
 Number of bytes used for nal length (1, 2 or 4) More...
 
int bit_depth_luma
 luma bit depth from sps to detect changes More...
 
int chroma_format_idc
 chroma format from sps to detect changes More...
 
H264ParamSets ps
 
uint16_t * slice_table_base
 
H264POCContext poc
 
H264Ref default_ref [2]
 
H264Pictureshort_ref [32]
 
H264Picturelong_ref [32]
 
H264Picturedelayed_pic [MAX_DELAYED_PIC_COUNT+2]
 
int last_pocs [MAX_DELAYED_PIC_COUNT]
 
H264Picturenext_output_pic
 
int next_outputed_poc
 
MMCO mmco [MAX_MMCO_COUNT]
 memory management control operations buffer. More...
 
int nb_mmco
 
int mmco_reset
 
int explicit_ref_marking
 
int long_ref_count
 number of actual long term references More...
 
int short_ref_count
 number of actual short term references More...
 
int prev_interlaced_frame
 Complement sei_pic_struct SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames. More...
 
int valid_recovery_point
 Are the SEI recovery points looking valid. More...
 
int recovery_frame
 recovery_frame is the frame_num at which the next frame should be fully constructed. More...
 
int frame_recovered
 Initial frame has been completely recovered. More...
 
int has_recovery_point
 
int missing_fields
 
int setup_finished
 
int cur_chroma_format_idc
 
int cur_bit_depth_luma
 
int16_t slice_row [MAX_SLICES]
 to detect when MAX_SLICES is too low More...
 
int width_from_caller
 
int height_from_caller
 
int enable_er
 
H264SEIContext sei
 
AVBufferPoolqscale_table_pool
 
AVBufferPoolmb_type_pool
 
AVBufferPoolmotion_val_pool
 
AVBufferPoolref_index_pool
 
int ref2frm [MAX_SLICES][2][64]
 reference to frame number lists, used in the loop filter, the first 2 are for -2,-1 More...
 
Members for slice based multithreading
int current_slice
 current slice number, used to initialize slice_num of each thread/context More...
 

Detailed Description

H264Context.

Definition at line 344 of file h264dec.h.

Field Documentation

◆ class

const AVClass* H264Context::class

Definition at line 345 of file h264dec.h.

◆ avctx

AVCodecContext* H264Context::avctx

Definition at line 346 of file h264dec.h.

Referenced by decode_cabac_mb_mvd(), and get_scale_factor().

◆ vdsp

VideoDSPContext H264Context::vdsp

Definition at line 347 of file h264dec.h.

◆ h264dsp

H264DSPContext H264Context::h264dsp

Definition at line 348 of file h264dec.h.

◆ h264chroma

H264ChromaContext H264Context::h264chroma

Definition at line 349 of file h264dec.h.

◆ h264qpel

H264QpelContext H264Context::h264qpel

Definition at line 350 of file h264dec.h.

◆ DPB

Definition at line 352 of file h264dec.h.

Referenced by copy_picture_range().

◆ cur_pic_ptr

H264Picture* H264Context::cur_pic_ptr

Definition at line 353 of file h264dec.h.

◆ cur_pic

H264Picture H264Context::cur_pic

Definition at line 354 of file h264dec.h.

◆ last_pic_for_ec

H264Picture H264Context::last_pic_for_ec

Definition at line 355 of file h264dec.h.

◆ slice_ctx

H264SliceContext* H264Context::slice_ctx

Definition at line 357 of file h264dec.h.

Referenced by decode_finish_row(), and er_add_slice().

◆ nb_slice_ctx

int H264Context::nb_slice_ctx

Definition at line 358 of file h264dec.h.

◆ nb_slice_ctx_queued

int H264Context::nb_slice_ctx_queued

Definition at line 359 of file h264dec.h.

◆ pkt

H2645Packet H264Context::pkt

Definition at line 361 of file h264dec.h.

◆ pixel_shift

int H264Context::pixel_shift

0 for 8-bit H.264, 1 for high-bit-depth H.264

Definition at line 363 of file h264dec.h.

◆ width

int H264Context::width

Definition at line 366 of file h264dec.h.

◆ height

int H264Context::height

Definition at line 366 of file h264dec.h.

◆ chroma_x_shift

int H264Context::chroma_x_shift

Definition at line 367 of file h264dec.h.

◆ chroma_y_shift

int H264Context::chroma_y_shift

Definition at line 367 of file h264dec.h.

◆ droppable

int H264Context::droppable

Definition at line 369 of file h264dec.h.

◆ coded_picture_number

int H264Context::coded_picture_number

Definition at line 370 of file h264dec.h.

◆ context_initialized

int H264Context::context_initialized

Definition at line 372 of file h264dec.h.

◆ flags

int H264Context::flags

Definition at line 373 of file h264dec.h.

◆ workaround_bugs

int H264Context::workaround_bugs

Definition at line 374 of file h264dec.h.

◆ x264_build

int H264Context::x264_build

Definition at line 375 of file h264dec.h.

◆ postpone_filter

int H264Context::postpone_filter

Definition at line 380 of file h264dec.h.

◆ picture_idr

int H264Context::picture_idr

Definition at line 385 of file h264dec.h.

◆ crop_left

int H264Context::crop_left

Definition at line 387 of file h264dec.h.

◆ crop_right

int H264Context::crop_right

Definition at line 388 of file h264dec.h.

◆ crop_top

int H264Context::crop_top

Definition at line 389 of file h264dec.h.

◆ crop_bottom

int H264Context::crop_bottom

Definition at line 390 of file h264dec.h.

◆ intra4x4_pred_mode

int8_t* H264Context::intra4x4_pred_mode

Definition at line 392 of file h264dec.h.

◆ hpc

H264PredContext H264Context::hpc

Definition at line 393 of file h264dec.h.

◆ non_zero_count

uint8_t(* H264Context::non_zero_count)[48]

Definition at line 395 of file h264dec.h.

◆ block_offset

int H264Context::block_offset[2 *(16 *3)]

block_offset[ 0..23] for frame macroblocks block_offset[24..47] for field macroblocks

Definition at line 404 of file h264dec.h.

◆ mb2b_xy

uint32_t* H264Context::mb2b_xy

Definition at line 406 of file h264dec.h.

◆ mb2br_xy

uint32_t* H264Context::mb2br_xy

Definition at line 407 of file h264dec.h.

◆ b_stride

int H264Context::b_stride

Definition at line 408 of file h264dec.h.

◆ slice_table

uint16_t* H264Context::slice_table

slice_table_base + 2*mb_stride + 1

Definition at line 410 of file h264dec.h.

◆ mb_aff_frame

int H264Context::mb_aff_frame

Definition at line 413 of file h264dec.h.

◆ picture_structure

int H264Context::picture_structure

Definition at line 414 of file h264dec.h.

◆ first_field

int H264Context::first_field

Definition at line 415 of file h264dec.h.

◆ list_counts

uint8_t* H264Context::list_counts

Array of list_count per MB specifying the slice type.

Definition at line 417 of file h264dec.h.

◆ cbp_table

uint16_t* H264Context::cbp_table

Definition at line 420 of file h264dec.h.

◆ chroma_pred_mode_table

uint8_t* H264Context::chroma_pred_mode_table

Definition at line 423 of file h264dec.h.

◆ mvd_table

uint8_t(*[2] H264Context::mvd_table)[2]

Definition at line 424 of file h264dec.h.

◆ direct_table

uint8_t* H264Context::direct_table

Definition at line 425 of file h264dec.h.

◆ scan_padding

uint8_t H264Context::scan_padding[16]

Definition at line 427 of file h264dec.h.

◆ zigzag_scan

uint8_t H264Context::zigzag_scan[16]

Definition at line 428 of file h264dec.h.

◆ zigzag_scan8x8

uint8_t H264Context::zigzag_scan8x8[64]

Definition at line 429 of file h264dec.h.

◆ zigzag_scan8x8_cavlc

uint8_t H264Context::zigzag_scan8x8_cavlc[64]

Definition at line 430 of file h264dec.h.

◆ field_scan

uint8_t H264Context::field_scan[16]

Definition at line 431 of file h264dec.h.

◆ field_scan8x8

uint8_t H264Context::field_scan8x8[64]

Definition at line 432 of file h264dec.h.

◆ field_scan8x8_cavlc

uint8_t H264Context::field_scan8x8_cavlc[64]

Definition at line 433 of file h264dec.h.

◆ zigzag_scan_q0

uint8_t H264Context::zigzag_scan_q0[16]

Definition at line 434 of file h264dec.h.

◆ zigzag_scan8x8_q0

uint8_t H264Context::zigzag_scan8x8_q0[64]

Definition at line 435 of file h264dec.h.

◆ zigzag_scan8x8_cavlc_q0

uint8_t H264Context::zigzag_scan8x8_cavlc_q0[64]

Definition at line 436 of file h264dec.h.

◆ field_scan_q0

uint8_t H264Context::field_scan_q0[16]

Definition at line 437 of file h264dec.h.

◆ field_scan8x8_q0

uint8_t H264Context::field_scan8x8_q0[64]

Definition at line 438 of file h264dec.h.

◆ field_scan8x8_cavlc_q0

uint8_t H264Context::field_scan8x8_cavlc_q0[64]

Definition at line 439 of file h264dec.h.

◆ mb_y

int H264Context::mb_y

Definition at line 441 of file h264dec.h.

◆ mb_height

int H264Context::mb_height

Definition at line 442 of file h264dec.h.

◆ mb_width

int H264Context::mb_width

Definition at line 442 of file h264dec.h.

◆ mb_stride

int H264Context::mb_stride

Definition at line 443 of file h264dec.h.

◆ mb_num

int H264Context::mb_num

Definition at line 444 of file h264dec.h.

◆ nal_ref_idc

int H264Context::nal_ref_idc

Definition at line 449 of file h264dec.h.

◆ nal_unit_type

int H264Context::nal_unit_type

Definition at line 450 of file h264dec.h.

◆ has_slice

int H264Context::has_slice

slice NAL is found in the packet, set by decode_nal_units, its state does not need to be preserved outside h264_decode_frame()

Definition at line 452 of file h264dec.h.

◆ is_avc

int H264Context::is_avc

Used to parse AVC variant of H.264.

this flag is != 0 if codec is avc1

Definition at line 457 of file h264dec.h.

Referenced by ff_h264_update_thread_context_for_user().

◆ nal_length_size

int H264Context::nal_length_size

Number of bytes used for nal length (1, 2 or 4)

Definition at line 458 of file h264dec.h.

Referenced by ff_h264_update_thread_context_for_user().

◆ bit_depth_luma

int H264Context::bit_depth_luma

luma bit depth from sps to detect changes

Definition at line 460 of file h264dec.h.

◆ chroma_format_idc

int H264Context::chroma_format_idc

chroma format from sps to detect changes

Definition at line 461 of file h264dec.h.

◆ ps

H264ParamSets H264Context::ps

Definition at line 463 of file h264dec.h.

◆ slice_table_base

uint16_t* H264Context::slice_table_base

Definition at line 465 of file h264dec.h.

◆ poc

H264POCContext H264Context::poc

Definition at line 467 of file h264dec.h.

◆ default_ref

H264Ref H264Context::default_ref[2]

Definition at line 469 of file h264dec.h.

◆ short_ref

H264Picture* H264Context::short_ref[32]

Definition at line 470 of file h264dec.h.

◆ long_ref

H264Picture* H264Context::long_ref[32]

Definition at line 471 of file h264dec.h.

◆ delayed_pic

H264Picture* H264Context::delayed_pic[MAX_DELAYED_PIC_COUNT+2]

Definition at line 472 of file h264dec.h.

◆ last_pocs

int H264Context::last_pocs[MAX_DELAYED_PIC_COUNT]

Definition at line 473 of file h264dec.h.

◆ next_output_pic

H264Picture* H264Context::next_output_pic

Definition at line 474 of file h264dec.h.

◆ next_outputed_poc

int H264Context::next_outputed_poc

Definition at line 475 of file h264dec.h.

◆ mmco

MMCO H264Context::mmco[MAX_MMCO_COUNT]

memory management control operations buffer.

Definition at line 480 of file h264dec.h.

◆ nb_mmco

int H264Context::nb_mmco

Definition at line 481 of file h264dec.h.

◆ mmco_reset

int H264Context::mmco_reset

Definition at line 482 of file h264dec.h.

◆ explicit_ref_marking

int H264Context::explicit_ref_marking

Definition at line 483 of file h264dec.h.

◆ long_ref_count

int H264Context::long_ref_count

number of actual long term references

Definition at line 485 of file h264dec.h.

◆ short_ref_count

int H264Context::short_ref_count

number of actual short term references

Definition at line 486 of file h264dec.h.

◆ current_slice

int H264Context::current_slice

current slice number, used to initialize slice_num of each thread/context

Definition at line 495 of file h264dec.h.

◆ prev_interlaced_frame

int H264Context::prev_interlaced_frame

Complement sei_pic_struct SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames.

However, soft telecined frames may have these values. This is used in an attempt to flag soft telecine progressive.

Definition at line 505 of file h264dec.h.

◆ valid_recovery_point

int H264Context::valid_recovery_point

Are the SEI recovery points looking valid.

Definition at line 510 of file h264dec.h.

◆ recovery_frame

int H264Context::recovery_frame

recovery_frame is the frame_num at which the next frame should be fully constructed.

Set to -1 when not expecting a recovery point.

Definition at line 518 of file h264dec.h.

◆ frame_recovered

int H264Context::frame_recovered

Initial frame has been completely recovered.

Definition at line 531 of file h264dec.h.

◆ has_recovery_point

int H264Context::has_recovery_point

Definition at line 533 of file h264dec.h.

◆ missing_fields

int H264Context::missing_fields

Definition at line 535 of file h264dec.h.

◆ setup_finished

int H264Context::setup_finished

Definition at line 541 of file h264dec.h.

◆ cur_chroma_format_idc

int H264Context::cur_chroma_format_idc

Definition at line 543 of file h264dec.h.

◆ cur_bit_depth_luma

int H264Context::cur_bit_depth_luma

Definition at line 544 of file h264dec.h.

◆ slice_row

int16_t H264Context::slice_row[MAX_SLICES]

to detect when MAX_SLICES is too low

Definition at line 545 of file h264dec.h.

◆ width_from_caller

int H264Context::width_from_caller

Definition at line 549 of file h264dec.h.

◆ height_from_caller

int H264Context::height_from_caller

Definition at line 550 of file h264dec.h.

◆ enable_er

int H264Context::enable_er

Definition at line 552 of file h264dec.h.

Referenced by er_add_slice().

◆ sei

H264SEIContext H264Context::sei

Definition at line 554 of file h264dec.h.

◆ qscale_table_pool

AVBufferPool* H264Context::qscale_table_pool

Definition at line 556 of file h264dec.h.

◆ mb_type_pool

AVBufferPool* H264Context::mb_type_pool

Definition at line 557 of file h264dec.h.

◆ motion_val_pool

AVBufferPool* H264Context::motion_val_pool

Definition at line 558 of file h264dec.h.

◆ ref_index_pool

AVBufferPool* H264Context::ref_index_pool

Definition at line 559 of file h264dec.h.

◆ ref2frm

int H264Context::ref2frm[MAX_SLICES][2][64]

reference to frame number lists, used in the loop filter, the first 2 are for -2,-1

Definition at line 560 of file h264dec.h.


The documentation for this struct was generated from the following file: