H264Context Struct Reference

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

Definition at line 352 of file h264.h.

int H264Context::cabac_init_idc

Definition at line 359 of file h264.h.

Referenced by decode_slice(), and decode_slice_header().

uint16_t* H264Context::cbp_table

Definition at line 362 of file h264.h.

Referenced by alloc_tables(), clone_tables(), decode_cabac_residual(), decode_mb_cabac(), fill_caches(), and free_tables().

int H264Context::cbp

Definition at line 363 of file h264.h.

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

int H264Context::top_cbp

Definition at line 364 of file h264.h.

Referenced by decode_cabac_mb_cbp_luma(), and fill_caches().

int H264Context::left_cbp

Definition at line 365 of file h264.h.

Referenced by decode_cabac_mb_cbp_chroma(), decode_cabac_mb_cbp_luma(), fill_caches(), and get_cabac_cbf_ctx().

uint8_t* H264Context::chroma_pred_mode_table

Definition at line 367 of file h264.h.

Referenced by alloc_tables(), clone_tables(), decode_cabac_mb_chroma_pre_mode(), decode_mb_cabac(), and free_tables().

int H264Context::last_qscale_diff

Definition at line 368 of file h264.h.

Referenced by decode_cabac_mb_dqp(), decode_mb_cabac(), and decode_slice_header().

int16_t(*[2] H264Context::mvd_table)[2]

Definition at line 369 of file h264.h.

Referenced by alloc_tables(), clone_tables(), fill_caches(), free_tables(), and write_back_motion().

uint8_t* H264Context::direct_table

Definition at line 371 of file h264.h.

Referenced by alloc_tables(), clone_tables(), fill_caches(), free_tables(), and write_back_motion().

uint8_t H264Context::direct_cache[5 *8]

Definition at line 372 of file h264.h.

Referenced by decode_cabac_mb_ref(), decode_mb_cabac(), and fill_caches().

uint8_t H264Context::zigzag_scan[16]

Definition at line 374 of file h264.h.

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

uint8_t H264Context::zigzag_scan8x8[64]

Definition at line 375 of file h264.h.

Referenced by decode_mb_cabac(), and init_scan_tables().

uint8_t H264Context::zigzag_scan8x8_cavlc[64]

Definition at line 376 of file h264.h.

Referenced by decode_mb_cavlc(), and init_scan_tables().

uint8_t H264Context::field_scan[16]

Definition at line 377 of file h264.h.

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

uint8_t H264Context::field_scan8x8[64]

Definition at line 378 of file h264.h.

Referenced by decode_mb_cabac(), and init_scan_tables().

uint8_t H264Context::field_scan8x8_cavlc[64]

Definition at line 379 of file h264.h.

Referenced by decode_mb_cavlc(), and init_scan_tables().

const uint8_t* H264Context::zigzag_scan_q0

Definition at line 380 of file h264.h.

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

const uint8_t* H264Context::zigzag_scan8x8_q0

Definition at line 381 of file h264.h.

Referenced by decode_mb_cabac(), and init_scan_tables().

const uint8_t* H264Context::zigzag_scan8x8_cavlc_q0

Definition at line 382 of file h264.h.

Referenced by decode_mb_cavlc(), and init_scan_tables().

const uint8_t* H264Context::field_scan_q0

Definition at line 383 of file h264.h.

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

const uint8_t* H264Context::field_scan8x8_q0

Definition at line 384 of file h264.h.

Referenced by decode_mb_cabac(), and init_scan_tables().

const uint8_t* H264Context::field_scan8x8_cavlc_q0

Definition at line 385 of file h264.h.

Referenced by decode_mb_cavlc(), and init_scan_tables().

int H264Context::x264_build

Definition at line 387 of file h264.h.

Referenced by decode_slice_header(), decode_unregistered_user_data(), and pred_direct_motion().

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

libavcodec/h264.h


Public Member Functions
	DECLARE_ALIGNED_8 (uint8_t, non_zero_count_cache[6 *8])
	non zero coeff count cache.
	DECLARE_ALIGNED_8 (int16_t, mv_cache[2][5 *8][2])
	Motion vector cache.
	DECLARE_ALIGNED_8 (int8_t, ref_cache[2][5 *8])
	DECLARE_ALIGNED_16 (DCTELEM, mb[16 *24])
	DECLARE_ALIGNED_8 (int16_t, mvd_cache[2][5 *8][2])
Data Fields
MpegEncContext	s
int	nal_ref_idc
int	nal_unit_type
uint8_t *	rbsp_buffer [2]
unsigned int	rbsp_buffer_size [2]
int	is_avc
	Used to parse AVC variant of h264.
int	got_avcC
	flag used to parse avcC data only once
int	nal_length_size
	Number of bytes used for nal length (1, 2 or 4).
int	chroma_qp [2]
int	prev_mb_skipped
int	next_mb_skipped
int	chroma_pred_mode
int	intra16x16_pred_mode
int	top_mb_xy
int	left_mb_xy [2]
int8_t	intra4x4_pred_mode_cache [5 *8]
int8_t(*	intra4x4_pred_mode )[8]
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+2 *8]
uint8_t	left_border [2 (17+2 9)]
uint8_t(*	non_zero_count )[16]
int	mv_cache_clean [2]
	is 1 if the specific list MV&references are set to 0,0,-2.
int	neighbor_transform_size
	number of neighbors (top and/or left) that used 8x8 dct
int	block_offset [2 *(16+8)]
	block_offset[ 0.
uint32_t *	mb2b_xy
uint32_t *	mb2b8_xy
int	b_stride
int	b8_stride
int	mb_linesize
	may be equal to s->linesize or s->linesize*2, for mbaff
int	mb_uvlinesize
int	emu_edge_width
int	emu_edge_height
int	halfpel_flag
int	thirdpel_flag
int	unknown_svq3_flag
int	next_slice_index
SPS *	sps_buffers [MAX_SPS_COUNT]
SPS	sps
	current sps
PPS *	pps_buffers [MAX_PPS_COUNT]
PPS	pps
	current pps
uint32_t	dequant4_buffer [6][52][16]
uint32_t	dequant8_buffer [2][52][64]
uint32_t(*[6]	dequant4_coeff )[16]
uint32_t(*[2]	dequant8_coeff )[64]
int	dequant_coeff_pps
	reinit tables when pps changes
int	slice_num
uint8_t *	slice_table_base
uint8_t *	slice_table
	slice_table_base + 2*mb_stride + 1
int	slice_type
int	slice_type_fixed
int	mb_aff_frame
int	mb_field_decoding_flag
int	mb_mbaff
	mb_aff_frame && mb_field_decoding_flag
unsigned int	sub_mb_type [4]
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	use_weight
int	use_weight_chroma
int	luma_log2_weight_denom
int	chroma_log2_weight_denom
int	luma_weight [2][48]
int	luma_offset [2][48]
int	chroma_weight [2][48][2]
int	chroma_offset [2][48][2]
int	implicit_weight [48][48]
int	deblocking_filter
	disable_deblocking_filter_idc with 1<->0
int	slice_alpha_c0_offset
int	slice_beta_offset
int	redundant_pic_count
int	direct_spatial_mv_pred
int	dist_scale_factor [16]
int	dist_scale_factor_field [32]
int	map_col_to_list0 [2][16]
int	map_col_to_list0_field [2][32]
unsigned int	ref_count [2]
	num_ref_idx_l0/1_active_minus1 + 1
unsigned int	list_count
Picture *	short_ref [32]
Picture *	long_ref [32]
Picture	default_ref_list [2][32]
	base reference list for all slices of a coded picture
Picture	ref_list [2][48]
	0.
Picture *	delayed_pic [18]
Picture *	delayed_output_pic
MMCO	mmco [MAX_MMCO_COUNT]
	memory management control operations buffer.
int	mmco_index
int	long_ref_count
	number of actual long term references
int	short_ref_count
	number of actual short term references
GetBitContext	intra_gb
GetBitContext	inter_gb
GetBitContext *	intra_gb_ptr
GetBitContext *	inter_gb_ptr
DCTELEM	mb_padding [256]
	as mb is addressed by scantable[i] and scantable is uint8_t we can either check that i is not to large or ensure that there is some unused stuff after mb
CABACContext	cabac
	Cabac.
uint8_t	cabac_state [460]
int	cabac_init_idc
uint16_t *	cbp_table
int	cbp
int	top_cbp
int	left_cbp
uint8_t *	chroma_pred_mode_table
int	last_qscale_diff
int16_t(*[2]	mvd_table )[2]
uint8_t *	direct_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_t *	zigzag_scan_q0
const uint8_t *	zigzag_scan8x8_q0
const uint8_t *	zigzag_scan8x8_cavlc_q0
const uint8_t *	field_scan_q0
const uint8_t *	field_scan8x8_q0
const uint8_t *	field_scan8x8_cavlc_q0
int	x264_build
struct H264Context *	thread_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	single_decode_warning
	1 if the single thread fallback warning has already been displayed, 0 otherwise.
int	last_slice_type