Libav
Data Fields
H264Context Struct Reference

H264Context. More...

#include <h264.h>

Data Fields

AVCodecContextavctx
DSPContext dsp
VideoDSPContext vdsp
H264DSPContext h264dsp
H264ChromaContext h264chroma
H264QpelContext h264qpel
MotionEstContext me
ParseContext parse_context
GetBitContext gb
ERContext er
PictureDPB
Picturecur_pic_ptr
Picture cur_pic
int pixel_shift
 0 for 8-bit H264, 1 for high-bit-depth H264
int chroma_qp [2]
int qp_thresh
 QP threshold to skip loopfilter.
int width
int height
ptrdiff_t linesize
ptrdiff_t uvlinesize
int chroma_x_shift
int chroma_y_shift
int qscale
int droppable
int data_partitioning
int coded_picture_number
int low_delay
int context_initialized
int flags
int workaround_bugs
int prev_mb_skipped
int next_mb_skipped
int chroma_pred_mode
int intra16x16_pred_mode
int topleft_mb_xy
int top_mb_xy
int topright_mb_xy
int left_mb_xy [LEFT_MBS]
int topleft_type
int top_type
int topright_type
int left_type [LEFT_MBS]
const uint8_tleft_block
int topleft_partition
int8_t intra4x4_pred_mode_cache [5 *8]
int8_t * intra4x4_pred_mode
H264PredContext hpc
unsigned int topleft_samples_available
unsigned int top_samples_available
unsigned int topright_samples_available
unsigned int left_samples_available
uint8_t(*[2] top_borders )[(16 *3)*2]
uint8_t non_zero_count_cache [15 *8]
 non zero coeff count cache.
uint8_t(* non_zero_count )[48]
int16_t mv_cache [2][5 *8][2]
 Motion vector cache.
int8_t ref_cache [2][5 *8]
int neighbor_transform_size
 number of neighbors (top and/or left) that used 8x8 dct
int block_offset [2 *(16 *3)]
 block_offset[ 0..23] for frame macroblocks block_offset[24..47] for field macroblocks
uint32_t * mb2b_xy
uint32_t * mb2br_xy
int b_stride
ptrdiff_t mb_linesize
 may be equal to s->linesize or s->linesize * 2, for mbaff
ptrdiff_t mb_uvlinesize
SPS sps
 current sps
PPS pps
 current pps
uint32_t dequant4_buffer [6][QP_MAX_NUM+1][16]
uint32_t dequant8_buffer [6][QP_MAX_NUM+1][64]
uint32_t(*[6] dequant4_coeff )[16]
uint32_t(*[6] dequant8_coeff )[64]
int slice_num
uint16_t * slice_table
 slice_table_base + 2*mb_stride + 1
int slice_type
int slice_type_nos
 S free slice type (SI/SP are remapped to I/P)
int slice_type_fixed
int mb_aff_frame
int mb_field_decoding_flag
int mb_mbaff
 mb_aff_frame && mb_field_decoding_flag
int picture_structure
int first_field
uint16_t sub_mb_type [4]
int use_weight
int use_weight_chroma
int luma_log2_weight_denom
int chroma_log2_weight_denom
int luma_weight [48][2][2]
int chroma_weight [48][2][2][2]
int implicit_weight [48][48][2]
int direct_spatial_mv_pred
int col_parity
int col_fieldoff
int dist_scale_factor [32]
int dist_scale_factor_field [2][32]
int map_col_to_list0 [2][16+32]
int map_col_to_list0_field [2][2][16+32]
unsigned int ref_count [2]
 num_ref_idx_l0/1_active_minus1 + 1
unsigned int list_count
uint8_tlist_counts
 Array of list_count per MB specifying the slice type.
Picture ref_list [2][48]
 0..15: frame refs, 16..47: mbaff field refs.
int ref2frm [MAX_SLICES][2][64]
 reference to frame number lists, used in the loop filter, the first 2 are for -2,-1
GetBitContext intra_gb
GetBitContext inter_gb
GetBitContextintra_gb_ptr
GetBitContextinter_gb_ptr
const uint8_tintra_pcm_ptr
int16_t mb [16 *48 *2]
 as a dct coeffecient is int32_t in high depth, we need to reserve twice the space.
int16_t mb_luma_dc [3][16 *2]
int16_t mb_padding [256 *2]
 as mb is addressed by scantable[i] and scantable is uint8_t we can either check that i is not too large or ensure that there is some unused stuff after mb
CABACContext cabac
 Cabac.
uint8_t cabac_state [1024]
uint16_t * cbp_table
int cbp
int top_cbp
int left_cbp
uint8_tchroma_pred_mode_table
int last_qscale_diff
uint8_t(*[2] mvd_table )[2]
uint8_t mvd_cache [2][5 *8][2]
uint8_tdirect_table
uint8_t direct_cache [5 *8]
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]
const uint8_tzigzag_scan_q0
const uint8_tzigzag_scan8x8_q0
const uint8_tzigzag_scan8x8_cavlc_q0
const uint8_tfield_scan_q0
const uint8_tfield_scan8x8_q0
const uint8_tfield_scan8x8_cavlc_q0
int x264_build
int mb_x
int mb_y
int resync_mb_x
int resync_mb_y
int mb_skip_run
int mb_height
int mb_width
int mb_stride
int mb_num
int mb_xy
int is_complex
int deblocking_filter
 disable_deblocking_filter_idc with 1 <-> 0
int slice_alpha_c0_offset
int slice_beta_offset
int nal_ref_idc
int nal_unit_type
uint8_trbsp_buffer [2]
unsigned int rbsp_buffer_size [2]
int is_avc
 Used to parse AVC variant of h264.
int nal_length_size
 Number of bytes used for nal length (1, 2 or 4)
int got_first
 this flag is != 0 if we've parsed a frame
int bit_depth_luma
 luma bit depth from sps to detect changes
int chroma_format_idc
 chroma format from sps to detect changes
SPSsps_buffers [MAX_SPS_COUNT]
PPSpps_buffers [MAX_PPS_COUNT]
int dequant_coeff_pps
 reinit tables when pps changes
uint16_t * slice_table_base
int poc_lsb
int poc_msb
int delta_poc_bottom
int delta_poc [2]
int frame_num
int prev_poc_msb
 poc_msb of the last reference pic for POC type 0
int prev_poc_lsb
 poc_lsb of the last reference pic for POC type 0
int frame_num_offset
 for POC type 2
int prev_frame_num_offset
 for POC type 2
int prev_frame_num
 frame_num of the last pic for POC type 1/2
int curr_pic_num
 frame_num for frames or 2 * frame_num + 1 for field pics.
int max_pic_num
 max_frame_num or 2 * max_frame_num for field pics.
int redundant_pic_count
Picture default_ref_list [2][32]
 base reference list for all slices of a coded picture
Pictureshort_ref [32]
Picturelong_ref [32]
Picturedelayed_pic [MAX_DELAYED_PIC_COUNT+2]
int last_pocs [MAX_DELAYED_PIC_COUNT]
Picturenext_output_pic
int outputed_poc
int next_outputed_poc
MMCO mmco [MAX_MMCO_COUNT]
 memory management control operations buffer.
int mmco_index
int mmco_reset
int long_ref_count
 number of actual long term references
int short_ref_count
 number of actual short term references
int cabac_init_idc
SEI_PicStructType sei_pic_struct
 pic_struct in picture timing SEI message
int prev_interlaced_frame
 Complement sei_pic_struct SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames.
int sei_frame_packing_present
 frame_packing_arrangment SEI message
int frame_packing_arrangement_type
int content_interpretation_type
int quincunx_subsampling
int sei_ct_type
 Bit set of clock types for fields/frames in picture timing SEI message.
int sei_dpb_output_delay
 dpb_output_delay in picture timing SEI message, see H.264 C.2.2
int sei_cpb_removal_delay
 cpb_removal_delay in picture timing SEI message, see H.264 C.1.2
int sei_recovery_frame_cnt
 recovery_frame_cnt from SEI message
int recovery_frame
 recovery_frame is the frame_num at which the next frame should be fully constructed.
int frame_recovered
 Initial frame has been completely recovered.
int luma_weight_flag [2]
 7.4.3.2 luma_weight_lX_flag
int chroma_weight_flag [2]
 7.4.3.2 chroma_weight_lX_flag
int sei_buffering_period_present
 Buffering period SEI flag.
int initial_cpb_removal_delay [32]
 Initial timestamps for CPBs.
int cur_chroma_format_idc
uint8_tbipred_scratchpad
uint8_tedge_emu_buffer
int16_t * dc_val_base
AVBufferPoolqscale_table_pool
AVBufferPoolmb_type_pool
AVBufferPoolmotion_val_pool
AVBufferPoolref_index_pool
Members for slice based multithreading
struct H264Contextthread_context [MAX_THREADS]
int current_slice
 current slice number, used to initalize slice_num of each thread/context
int max_contexts
 Max number of threads / contexts.
int slice_context_count
int single_decode_warning
 1 if the single thread fallback warning has already been displayed, 0 otherwise.
enum AVPictureType pict_type
int last_slice_type

Detailed Description

H264Context.

Definition at line 258 of file h264.h.

Field Documentation

AVCodecContext* H264Context::avctx

Definition at line 259 of file h264.h.

Referenced by alloc_picture(), await_reference_mb_row(), clone_tables(), context_init(), decode_buffering_period(), decode_cabac_mb_mvd(), decode_hrd_parameters(), decode_nal_units(), decode_picture_timing(), decode_postinit(), decode_rbsp_trailing(), decode_residual(), decode_slice(), decode_slice_header(), decode_unregistered_user_data(), decode_update_thread_context(), decode_vui_parameters(), dxva2_h264_end_frame(), execute_decode_slices(), fetch_diagonal_mv(), ff_generate_sliding_window_mmcos(), ff_h264_alloc_tables(), ff_h264_check_intra4x4_pred_mode(), ff_h264_check_intra_pred_mode(), ff_h264_decode_extradata(), ff_h264_decode_init(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_h264_decode_picture_parameter_set(), ff_h264_decode_ref_pic_list_reordering(), ff_h264_decode_ref_pic_marking(), ff_h264_decode_sei(), ff_h264_decode_seq_parameter_set(), ff_h264_draw_horiz_band(), ff_h264_execute_ref_pic_marking(), ff_h264_fill_default_ref_list(), ff_h264_filter_mb(), ff_set_ref_count(), field_end(), filter_mb_dir(), find_short(), get_pixel_format(), h264_frame_start(), h264_parse(), h264_set_parameter_from_sps(), h264_slice_header_init(), init_dimensions(), parse_nal_units(), pred_16x8_motion(), pred_8x16_motion(), pred_intra_mode(), pred_motion(), pred_non_zero_count(), pred_pskip_motion(), print_long_term(), print_short_term(), remove_short(), scan_mmco_reset(), svq3_decode_frame(), svq3_decode_mb(), svq3_decode_slice_header(), svq3_mc_dir(), unref_picture(), vaapi_h264_end_frame(), and vdpau_h264_end_frame().

DSPContext H264Context::dsp
VideoDSPContext H264Context::vdsp
H264DSPContext H264Context::h264dsp
H264ChromaContext H264Context::h264chroma
H264QpelContext H264Context::h264qpel
MotionEstContext H264Context::me
ParseContext H264Context::parse_context

Definition at line 266 of file h264.h.

Referenced by close(), flush_dpb(), h264_find_frame_end(), and h264_parse().

GetBitContext H264Context::gb
ERContext H264Context::er
Picture* H264Context::DPB
Picture* H264Context::cur_pic_ptr
Picture H264Context::cur_pic
int H264Context::pixel_shift
int H264Context::chroma_qp[2]
int H264Context::qp_thresh

QP threshold to skip loopfilter.

Definition at line 277 of file h264.h.

Referenced by decode_slice_header(), and fill_filter_caches().

int H264Context::width
int H264Context::height
ptrdiff_t H264Context::linesize
ptrdiff_t H264Context::uvlinesize
int H264Context::chroma_x_shift

Definition at line 282 of file h264.h.

Referenced by h264_slice_header_init(), output_frame(), and svq3_decode_init().

int H264Context::chroma_y_shift
int H264Context::qscale
int H264Context::droppable
int H264Context::data_partitioning

Definition at line 286 of file h264.h.

Referenced by decode_nal_units(), h264_decode_frame(), and h264_slice_header_init().

int H264Context::coded_picture_number

Definition at line 287 of file h264.h.

Referenced by decode_update_thread_context(), and h264_frame_start().

int H264Context::low_delay
int H264Context::context_initialized
int H264Context::flags
int H264Context::workaround_bugs
int H264Context::prev_mb_skipped

Definition at line 294 of file h264.h.

Referenced by decode_mb_skip(), ff_h264_decode_mb_cabac(), and ff_h264_decode_mb_cavlc().

int H264Context::next_mb_skipped

Definition at line 295 of file h264.h.

Referenced by ff_h264_decode_mb_cabac().

int H264Context::chroma_pred_mode

Definition at line 298 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), and svq3_decode_mb().

int H264Context::intra16x16_pred_mode
int H264Context::topleft_mb_xy

Definition at line 301 of file h264.h.

Referenced by fill_decode_caches(), fill_decode_neighbors(), and pred_pskip_motion().

int H264Context::top_mb_xy
int H264Context::topright_mb_xy

Definition at line 303 of file h264.h.

Referenced by fill_decode_caches(), fill_decode_neighbors(), and pred_pskip_motion().

int H264Context::left_mb_xy[LEFT_MBS]
int H264Context::topleft_type

Definition at line 306 of file h264.h.

Referenced by fill_decode_caches(), fill_decode_neighbors(), and pred_pskip_motion().

int H264Context::top_type
int H264Context::topright_type

Definition at line 308 of file h264.h.

Referenced by fill_decode_caches(), fill_decode_neighbors(), and pred_pskip_motion().

int H264Context::left_type[LEFT_MBS]
const uint8_t* H264Context::left_block

Definition at line 311 of file h264.h.

Referenced by fill_decode_caches(), fill_decode_neighbors(), and pred_pskip_motion().

int H264Context::topleft_partition

Definition at line 312 of file h264.h.

Referenced by fill_decode_caches(), fill_decode_neighbors(), and pred_pskip_motion().

int8_t H264Context::intra4x4_pred_mode_cache[5 *8]
int8_t* H264Context::intra4x4_pred_mode
H264PredContext H264Context::hpc
unsigned int H264Context::topleft_samples_available

Definition at line 317 of file h264.h.

Referenced by fill_decode_caches(), and hl_decode_mb_predict_luma().

unsigned int H264Context::top_samples_available
unsigned int H264Context::topright_samples_available

Definition at line 319 of file h264.h.

Referenced by fill_decode_caches(), hl_decode_mb_predict_luma(), and svq3_decode_mb().

unsigned int H264Context::left_samples_available
uint8_t(*[2] H264Context::top_borders)[(16 *3)*2]

Definition at line 321 of file h264.h.

Referenced by backup_mb_border(), context_init(), free_tables(), and xchg_mb_border().

uint8_t H264Context::non_zero_count_cache[15 *8]
uint8_t(* H264Context::non_zero_count)[48]
int16_t H264Context::mv_cache[2][5 *8][2]
int8_t H264Context::ref_cache[2][5 *8]
int H264Context::neighbor_transform_size

number of neighbors (top and/or left) that used 8x8 dct

Definition at line 342 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), and fill_decode_caches().

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

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

Definition at line 348 of file h264.h.

Referenced by clone_slice(), decode_update_thread_context(), h264_frame_start(), hl_decode_mb(), hl_decode_mb_444(), and svq3_decode_frame().

uint32_t* H264Context::mb2b_xy
uint32_t* H264Context::mb2br_xy
int H264Context::b_stride
ptrdiff_t H264Context::mb_linesize

may be equal to s->linesize or s->linesize * 2, for mbaff

Definition at line 354 of file h264.h.

Referenced by loop_filter(), mc_dir_part(), mc_part_std(), mc_part_weighted(), and prefetch_motion().

ptrdiff_t H264Context::mb_uvlinesize

Definition at line 355 of file h264.h.

Referenced by loop_filter(), mc_dir_part(), mc_part_std(), and mc_part_weighted().

SPS H264Context::sps
PPS H264Context::pps
uint32_t H264Context::dequant4_buffer[6][QP_MAX_NUM+1][16]

Definition at line 360 of file h264.h.

Referenced by decode_update_thread_context(), and init_dequant4_coeff_table().

uint32_t H264Context::dequant8_buffer[6][QP_MAX_NUM+1][64]

Definition at line 361 of file h264.h.

Referenced by decode_update_thread_context(), and init_dequant8_coeff_table().

uint32_t(*[6] H264Context::dequant4_coeff)[16]
uint32_t(*[6] H264Context::dequant8_coeff)[64]
int H264Context::slice_num
uint16_t* H264Context::slice_table
int H264Context::slice_type
int H264Context::slice_type_nos
int H264Context::slice_type_fixed

Definition at line 369 of file h264.h.

Referenced by decode_slice_header(), and fill_slice_long().

int H264Context::mb_aff_frame

Definition at line 372 of file h264.h.

Referenced by decode_slice_header().

int H264Context::mb_field_decoding_flag
int H264Context::mb_mbaff

mb_aff_frame && mb_field_decoding_flag

Definition at line 374 of file h264.h.

Referenced by decode_slice_header(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), loop_filter(), and predict_field_decoding_flag().

int H264Context::picture_structure
int H264Context::first_field
uint16_t H264Context::sub_mb_type[4]
int H264Context::use_weight
int H264Context::use_weight_chroma
int H264Context::luma_log2_weight_denom
int H264Context::chroma_log2_weight_denom
int H264Context::luma_weight[48][2][2]
int H264Context::chroma_weight[48][2][2][2]
int H264Context::implicit_weight[48][48][2]

Definition at line 388 of file h264.h.

Referenced by implicit_weight_table(), mc_part(), and mc_part_weighted().

int H264Context::direct_spatial_mv_pred
int H264Context::col_parity
int H264Context::col_fieldoff
int H264Context::dist_scale_factor[32]

Definition at line 393 of file h264.h.

Referenced by ff_h264_direct_dist_scale_factor(), and pred_temp_direct_motion().

int H264Context::dist_scale_factor_field[2][32]

Definition at line 394 of file h264.h.

Referenced by ff_h264_direct_dist_scale_factor(), and pred_temp_direct_motion().

int H264Context::map_col_to_list0[2][16+32]

Definition at line 395 of file h264.h.

Referenced by ff_h264_direct_ref_list_init(), and pred_temp_direct_motion().

int H264Context::map_col_to_list0_field[2][2][16+32]

Definition at line 396 of file h264.h.

Referenced by ff_h264_direct_ref_list_init(), and pred_temp_direct_motion().

unsigned int H264Context::ref_count[2]
unsigned int H264Context::list_count
uint8_t* H264Context::list_counts

Array of list_count per MB specifying the slice type.

Definition at line 403 of file h264.h.

Referenced by clone_tables(), ff_h264_alloc_tables(), free_tables(), and loop_filter().

Picture H264Context::ref_list[2][48]
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 407 of file h264.h.

Referenced by decode_slice_header(), and fill_filter_caches_inter().

GetBitContext H264Context::intra_gb

Definition at line 410 of file h264.h.

Referenced by decode_nal_units().

GetBitContext H264Context::inter_gb

Definition at line 411 of file h264.h.

Referenced by decode_nal_units().

GetBitContext* H264Context::intra_gb_ptr

Definition at line 412 of file h264.h.

Referenced by decode_luma_residual(), decode_nal_units(), and ff_h264_decode_mb_cavlc().

GetBitContext* H264Context::inter_gb_ptr

Definition at line 413 of file h264.h.

Referenced by decode_nal_units(), and ff_h264_decode_mb_cavlc().

const uint8_t* H264Context::intra_pcm_ptr

Definition at line 415 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), and ff_h264_decode_mb_cavlc().

int16_t H264Context::mb[16 *48 *2]

as a dct coeffecient is int32_t in high depth, we need to reserve twice the space.

Definition at line 416 of file h264.h.

Referenced by decode_cabac_luma_residual(), decode_luma_residual(), decode_update_thread_context(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), hl_decode_mb_idct_luma(), hl_decode_mb_predict_luma(), and svq3_decode_mb().

int16_t H264Context::mb_luma_dc[3][16 *2]
int16_t H264Context::mb_padding[256 *2]

as mb is addressed by scantable[i] and scantable is uint8_t we can either check that i is not too large or ensure that there is some unused stuff after mb

Definition at line 418 of file h264.h.

Referenced by decode_update_thread_context().

CABACContext H264Context::cabac
uint8_t H264Context::cabac_state[1024]
uint16_t* H264Context::cbp_table
int H264Context::cbp
int H264Context::top_cbp
int H264Context::left_cbp
uint8_t* H264Context::chroma_pred_mode_table
int H264Context::last_qscale_diff

Definition at line 433 of file h264.h.

Referenced by decode_slice_header(), and ff_h264_decode_mb_cabac().

uint8_t(*[2] H264Context::mvd_table)[2]
uint8_t H264Context::mvd_cache[2][5 *8][2]

Definition at line 435 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), fill_decode_caches(), and write_back_motion_list().

uint8_t* H264Context::direct_table
uint8_t H264Context::direct_cache[5 *8]

Definition at line 437 of file h264.h.

Referenced by decode_cabac_mb_ref(), ff_h264_decode_mb_cabac(), and fill_decode_caches().

uint8_t H264Context::zigzag_scan[16]

Definition at line 439 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), and init_scan_tables().

uint8_t H264Context::zigzag_scan8x8[64]

Definition at line 440 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), and init_scan_tables().

uint8_t H264Context::zigzag_scan8x8_cavlc[64]

Definition at line 441 of file h264.h.

Referenced by ff_h264_decode_mb_cavlc(), and init_scan_tables().

uint8_t H264Context::field_scan[16]

Definition at line 442 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), and init_scan_tables().

uint8_t H264Context::field_scan8x8[64]

Definition at line 443 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), and init_scan_tables().

uint8_t H264Context::field_scan8x8_cavlc[64]

Definition at line 444 of file h264.h.

Referenced by ff_h264_decode_mb_cavlc(), and init_scan_tables().

const uint8_t* H264Context::zigzag_scan_q0

Definition at line 445 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), and init_scan_tables().

const uint8_t* H264Context::zigzag_scan8x8_q0

Definition at line 446 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), and init_scan_tables().

const uint8_t* H264Context::zigzag_scan8x8_cavlc_q0

Definition at line 447 of file h264.h.

Referenced by ff_h264_decode_mb_cavlc(), and init_scan_tables().

const uint8_t* H264Context::field_scan_q0

Definition at line 448 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), and init_scan_tables().

const uint8_t* H264Context::field_scan8x8_q0

Definition at line 449 of file h264.h.

Referenced by ff_h264_decode_mb_cabac(), and init_scan_tables().

const uint8_t* H264Context::field_scan8x8_cavlc_q0

Definition at line 450 of file h264.h.

Referenced by ff_h264_decode_mb_cavlc(), and init_scan_tables().

int H264Context::x264_build
int H264Context::mb_x
int H264Context::mb_y
int H264Context::resync_mb_x

Definition at line 455 of file h264.h.

Referenced by decode_slice(), and decode_slice_header().

int H264Context::resync_mb_y

Definition at line 456 of file h264.h.

Referenced by decode_slice(), and decode_slice_header().

int H264Context::mb_skip_run

Definition at line 457 of file h264.h.

Referenced by decode_slice(), ff_h264_decode_mb_cavlc(), and svq3_decode_slice_header().

int H264Context::mb_height
int H264Context::mb_width
int H264Context::mb_stride
int H264Context::mb_num
int H264Context::mb_xy
int H264Context::is_complex

Definition at line 463 of file h264.h.

Referenced by decode_slice(), ff_h264_hl_decode_mb(), and svq3_decode_init().

int H264Context::deblocking_filter

disable_deblocking_filter_idc with 1 <-> 0

Definition at line 466 of file h264.h.

Referenced by decode_finish_row(), decode_slice_header(), fill_filter_caches(), fill_slice_long(), loop_filter(), vaapi_h264_decode_slice(), and xchg_mb_border().

int H264Context::slice_alpha_c0_offset
int H264Context::slice_beta_offset
int H264Context::nal_ref_idc
int H264Context::nal_unit_type
uint8_t* H264Context::rbsp_buffer[2]

Definition at line 475 of file h264.h.

Referenced by decode_update_thread_context(), ff_h264_decode_nal(), and free_tables().

unsigned int H264Context::rbsp_buffer_size[2]

Definition at line 476 of file h264.h.

Referenced by decode_update_thread_context(), ff_h264_decode_nal(), and free_tables().

int H264Context::is_avc

Used to parse AVC variant of h264.

this flag is != 0 if codec is avc1

Definition at line 481 of file h264.h.

Referenced by decode_nal_units(), decode_update_thread_context(), and ff_h264_decode_extradata().

int H264Context::nal_length_size

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

Definition at line 482 of file h264.h.

Referenced by decode_nal_units(), and ff_h264_decode_extradata().

int H264Context::got_first

this flag is != 0 if we've parsed a frame

Definition at line 483 of file h264.h.

Referenced by h264_parse().

int H264Context::bit_depth_luma

luma bit depth from sps to detect changes

Definition at line 485 of file h264.h.

Referenced by decode_slice_header(), and ff_h264_decode_init().

int H264Context::chroma_format_idc

chroma format from sps to detect changes

Definition at line 486 of file h264.h.

Referenced by decode_slice_header(), and ff_h264_decode_init().

SPS* H264Context::sps_buffers[MAX_SPS_COUNT]
PPS* H264Context::pps_buffers[MAX_PPS_COUNT]
int H264Context::dequant_coeff_pps

reinit tables when pps changes

Definition at line 491 of file h264.h.

Referenced by decode_slice_header(), decode_update_thread_context(), ff_h264_decode_init(), and ff_h264_decode_picture_parameter_set().

uint16_t* H264Context::slice_table_base

Definition at line 493 of file h264.h.

Referenced by ff_h264_alloc_tables(), and free_tables().

int H264Context::poc_lsb
int H264Context::poc_msb

Definition at line 497 of file h264.h.

Referenced by decode_update_thread_context(), ff_init_poc(), field_end(), and parse_nal_units().

int H264Context::delta_poc_bottom

Definition at line 498 of file h264.h.

Referenced by decode_slice_header(), ff_init_poc(), and parse_nal_units().

int H264Context::delta_poc[2]

Definition at line 499 of file h264.h.

Referenced by decode_slice_header(), ff_init_poc(), and parse_nal_units().

int H264Context::frame_num
int H264Context::prev_poc_msb

poc_msb of the last reference pic for POC type 0

Definition at line 501 of file h264.h.

Referenced by clone_slice(), decode_update_thread_context(), ff_h264_decode_init(), ff_init_poc(), field_end(), idr(), and parse_nal_units().

int H264Context::prev_poc_lsb

poc_lsb of the last reference pic for POC type 0

Definition at line 502 of file h264.h.

Referenced by clone_slice(), decode_update_thread_context(), ff_init_poc(), field_end(), idr(), and parse_nal_units().

int H264Context::frame_num_offset

for POC type 2

Definition at line 503 of file h264.h.

Referenced by decode_update_thread_context(), ff_init_poc(), field_end(), parse_nal_units(), svq3_decode_frame(), and svq3_mc_dir().

int H264Context::prev_frame_num_offset
int H264Context::prev_frame_num

frame_num of the last pic for POC type 1/2

Definition at line 505 of file h264.h.

Referenced by clone_slice(), decode_slice_header(), decode_update_thread_context(), ff_init_poc(), field_end(), idr(), parse_nal_units(), and svq3_decode_frame().

int H264Context::curr_pic_num

frame_num for frames or 2 * frame_num + 1 for field pics.

Definition at line 510 of file h264.h.

Referenced by decode_slice_header(), ff_h264_decode_ref_pic_list_reordering(), and ff_h264_decode_ref_pic_marking().

int H264Context::max_pic_num

max_frame_num or 2 * max_frame_num for field pics.

Definition at line 515 of file h264.h.

Referenced by decode_slice_header(), ff_h264_decode_ref_pic_list_reordering(), and ff_h264_decode_ref_pic_marking().

int H264Context::redundant_pic_count

Definition at line 517 of file h264.h.

Referenced by decode_nal_units(), decode_slice_header(), and fill_slice_long().

Picture H264Context::default_ref_list[2][32]

base reference list for all slices of a coded picture

Definition at line 519 of file h264.h.

Referenced by clone_slice(), ff_h264_decode_ref_pic_list_reordering(), ff_h264_fill_default_ref_list(), and flush_change().

Picture* H264Context::short_ref[32]
Picture* H264Context::long_ref[32]
Picture* H264Context::delayed_pic[MAX_DELAYED_PIC_COUNT+2]
int H264Context::last_pocs[MAX_DELAYED_PIC_COUNT]

Definition at line 523 of file h264.h.

Referenced by decode_postinit(), ff_h264_decode_init(), and flush_change().

Picture* H264Context::next_output_pic

Definition at line 524 of file h264.h.

Referenced by decode_postinit(), h264_decode_frame(), and h264_frame_start().

int H264Context::outputed_poc

Definition at line 525 of file h264.h.

Referenced by decode_update_thread_context(), ff_h264_decode_init(), field_end(), and flush_change().

int H264Context::next_outputed_poc
MMCO H264Context::mmco[MAX_MMCO_COUNT]
int H264Context::mmco_index
int H264Context::mmco_reset

Definition at line 533 of file h264.h.

Referenced by decode_postinit(), and ff_h264_execute_ref_pic_marking().

int H264Context::long_ref_count

number of actual long term references

Definition at line 535 of file h264.h.

Referenced by decode_slice_header(), ff_generate_sliding_window_mmcos(), ff_h264_execute_ref_pic_marking(), ff_h264_remove_all_refs(), and remove_long().

int H264Context::short_ref_count
int H264Context::cabac_init_idc
struct H264Context* H264Context::thread_context[MAX_THREADS]
int H264Context::current_slice

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

Definition at line 549 of file h264.h.

Referenced by decode_nal_units(), decode_slice_header(), field_end(), and fill_slice_long().

int H264Context::max_contexts

Max number of threads / contexts.

This is equal to AVCodecContext.thread_count unless multithreaded decoding is impossible, in which case it is reduced to 1.

Definition at line 557 of file h264.h.

Referenced by decode_nal_units(), and decode_slice_header().

int H264Context::slice_context_count
int H264Context::single_decode_warning

1 if the single thread fallback warning has already been displayed, 0 otherwise.

Definition at line 565 of file h264.h.

Referenced by decode_slice_header().

enum AVPictureType H264Context::pict_type
int H264Context::last_slice_type

Definition at line 569 of file h264.h.

Referenced by decode_slice_header(), and decode_update_thread_context().

SEI_PicStructType H264Context::sei_pic_struct

pic_struct in picture timing SEI message

Definition at line 575 of file h264.h.

Referenced by decode_picture_timing(), decode_postinit(), and parse_nal_units().

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 583 of file h264.h.

Referenced by decode_postinit(), flush_change(), and h264_slice_header_init().

int H264Context::sei_frame_packing_present

frame_packing_arrangment SEI message

Definition at line 588 of file h264.h.

Referenced by decode_frame_packing_arrangement(), decode_postinit(), and ff_h264_reset_sei().

int H264Context::frame_packing_arrangement_type

Definition at line 589 of file h264.h.

Referenced by decode_frame_packing_arrangement(), and decode_postinit().

int H264Context::content_interpretation_type

Definition at line 590 of file h264.h.

Referenced by decode_frame_packing_arrangement(), and decode_postinit().

int H264Context::quincunx_subsampling

Definition at line 591 of file h264.h.

Referenced by decode_frame_packing_arrangement(), and decode_postinit().

int H264Context::sei_ct_type

Bit set of clock types for fields/frames in picture timing SEI message.

For each found ct_type, appropriate bit is set (e.g., bit 1 for interlaced).

Definition at line 598 of file h264.h.

Referenced by decode_picture_timing(), and decode_postinit().

int H264Context::sei_dpb_output_delay

dpb_output_delay in picture timing SEI message, see H.264 C.2.2

Definition at line 603 of file h264.h.

Referenced by decode_picture_timing(), ff_h264_reset_sei(), and h264_parse().

int H264Context::sei_cpb_removal_delay

cpb_removal_delay in picture timing SEI message, see H.264 C.1.2

Definition at line 608 of file h264.h.

Referenced by decode_picture_timing(), ff_h264_reset_sei(), and h264_parse().

int H264Context::sei_recovery_frame_cnt

recovery_frame_cnt from SEI message

Set to -1 if no recovery point SEI message found or to number of frames before playback synchronizes. Frames having recovery point are key frames.

Definition at line 617 of file h264.h.

Referenced by decode_nal_units(), decode_recovery_point(), ff_h264_reset_sei(), and parse_nal_units().

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 625 of file h264.h.

Referenced by decode_nal_units(), decode_update_thread_context(), ff_h264_decode_init(), and flush_change().

int H264Context::frame_recovered

Initial frame has been completely recovered.

Definition at line 638 of file h264.h.

Referenced by decode_nal_units(), decode_postinit(), decode_update_thread_context(), ff_h264_decode_init(), and flush_change().

int H264Context::luma_weight_flag[2]

7.4.3.2 luma_weight_lX_flag

Definition at line 640 of file h264.h.

Referenced by decode_slice_header(), ff_pred_weight_table(), fill_slice_long(), fill_vaapi_plain_pred_weight_table(), and implicit_weight_table().

int H264Context::chroma_weight_flag[2]

7.4.3.2 chroma_weight_lX_flag

Definition at line 641 of file h264.h.

Referenced by decode_slice_header(), ff_pred_weight_table(), fill_slice_long(), fill_vaapi_plain_pred_weight_table(), and implicit_weight_table().

int H264Context::sei_buffering_period_present

Buffering period SEI flag.

Definition at line 644 of file h264.h.

Referenced by decode_buffering_period(), ff_h264_reset_sei(), and h264_parse().

int H264Context::initial_cpb_removal_delay[32]

Initial timestamps for CPBs.

Definition at line 645 of file h264.h.

Referenced by decode_buffering_period().

int H264Context::cur_chroma_format_idc

Definition at line 647 of file h264.h.

Referenced by h264_set_parameter_from_sps().

uint8_t* H264Context::bipred_scratchpad
uint8_t* H264Context::edge_emu_buffer
int16_t* H264Context::dc_val_base

Definition at line 650 of file h264.h.

Referenced by context_init(), and free_tables().

AVBufferPool* H264Context::qscale_table_pool

Definition at line 652 of file h264.h.

Referenced by alloc_picture(), decode_update_thread_context(), free_tables(), and init_table_pools().

AVBufferPool* H264Context::mb_type_pool

Definition at line 653 of file h264.h.

Referenced by alloc_picture(), decode_update_thread_context(), free_tables(), and init_table_pools().

AVBufferPool* H264Context::motion_val_pool

Definition at line 654 of file h264.h.

Referenced by alloc_picture(), decode_update_thread_context(), free_tables(), and init_table_pools().

AVBufferPool* H264Context::ref_index_pool

Definition at line 655 of file h264.h.

Referenced by alloc_picture(), decode_update_thread_context(), free_tables(), and init_table_pools().


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