VP8Context Struct Reference

filter strength adjustment for the following macroblock modes: [0-3] - i16x16 (always zero) [4] - i4x4 [5] - zero mv [6] - inter modes except for zero or split mv [7] - split mv i16x16 modes never have any adjustment

int8_t ref [4]

filter strength adjustment for macroblocks that reference: [0] - intra / VP56_FRAME_CURRENT [1] - VP56_FRAME_PREVIOUS [2] - VP56_FRAME_GOLDEN [3] - altref / VP56_FRAME_GOLDEN2

} lf_delta

uint8_t(* top_border )[16+8+8]

uint8_t(* top_nnz )[9]

VP56RangeCoder c

header context, includes mb modes and motion vectors

struct {

uint8_t segmentid [3]

uint8_t mbskip

uint8_t intra

uint8_t last

uint8_t golden

uint8_t pred16x16 [4]

uint8_t pred8x8c [3]

uint8_t token [4][16][3][NUM_DCT_TOKENS-1]

uint8_t mvc [2][19]

} prob [2]

These are all of the updatable probabilities for binary decisions.

VP8Macroblock * macroblocks_base

int invisible

int update_last

update VP56_FRAME_PREVIOUS with the current one

int update_golden

VP56_FRAME_NONE if not updated, or which frame to copy if so.

int update_altref

int update_probabilities

If this flag is not set, all the probability updates are discarded after this frame is decoded.

int num_coeff_partitions

All coefficients are contained in separate arith coding contexts.

VP56RangeCoder coeff_partition [8]

DSPContext dsp

VP8DSPContext vp8dsp

H264PredContext hpc

vp8_mc_func put_pixels_tab [3][3][3]

AVFrame frames [5]

uint8_t * segmentation_maps [5]

A list of segmentation_map buffers that are to be free()'ed in the next decoding iteration.

int num_maps_to_be_freed

int maps_are_invalid

int num_jobs

int mb_layout

This describes the macroblock memory layout.

Detailed Description

Definition at line 126 of file vp8.h.

Field Documentation

uint8_t VP8Context::absolute_vals

Definition at line 156 of file vp8.h.

Referenced by filter_level_for_mb(), get_quants(), and parse_segment_info().

AVCodecContext* VP8Context::avctx

Definition at line 128 of file vp8.h.

Referenced by decode_frame_header(), intra_predict(), update_dimensions(), vp8_alloc_frame(), vp8_decode_init(), vp8_decode_init_thread_copy(), and vp8_release_frame().

int8_t VP8Context::base_quant[4]

Definition at line 158 of file vp8.h.

Referenced by get_quants(), and parse_segment_info().

VP56RangeCoder VP8Context::c

header context, includes mb modes and motion vectors

Definition at line 212 of file vp8.h.

Referenced by decode_frame_header(), decode_mb_mode(), decode_mvs(), get_quants(), parse_segment_info(), ref_to_update(), setup_partitions(), update_lf_deltas(), and update_refs().

int16_t VP8Context::chroma_qmul[2]

Definition at line 182 of file vp8.h.

Referenced by decode_mb_coeffs(), and get_quants().

VP56RangeCoder VP8Context::coeff_partition[8]

Definition at line 249 of file vp8.h.

Referenced by setup_partitions(), and vp8_decode_mb_row_no_filter().

AVFrame* VP8Context::curframe

Definition at line 131 of file vp8.h.

Referenced by vp8_decode_frame(), vp8_decode_mb_row_no_filter(), vp8_decode_mb_row_sliced(), and vp8_filter_mb_row().

uint8_t VP8Context::deblock_filter

Definition at line 140 of file vp8.h.

Referenced by intra_predict(), vp8_decode_frame(), vp8_decode_mb_row_no_filter(), and vp8_decode_mb_row_sliced().

DSPContext VP8Context::dsp

Definition at line 250 of file vp8.h.

Referenced by prefetch_motion(), vp8_decode_init(), vp8_decode_mb_row_no_filter(), vp8_mc_chroma(), and vp8_mc_luma().

uint8_t VP8Context::enabled

whether each mb can have a different strength based on mode/ref

Definition at line 155 of file vp8.h.

Referenced by decode_frame_header(), decode_mb_mode(), filter_level_for_mb(), get_quants(), and vp8_decode_frame().

struct { ... } VP8Context::filter

Referenced by decode_frame_header(), filter_level_for_mb(), intra_predict(), vp8_decode_frame(), vp8_decode_mb_row_no_filter(), and vp8_filter_mb_row().

int8_t VP8Context::filter_level[4]

base loop filter level

Definition at line 159 of file vp8.h.

Referenced by filter_level_for_mb(), and parse_segment_info().

AVFrame* VP8Context::framep[4]

Definition at line 129 of file vp8.h.

Referenced by inter_predict(), prefetch_motion(), vp8_decode_flush_impl(), vp8_decode_frame(), and vp8_decode_update_thread_context().

AVFrame VP8Context::frames[5]

Definition at line 254 of file vp8.h.

Referenced by vp8_decode_flush_impl(), vp8_decode_frame(), and vp8_decode_update_thread_context().

uint8_t VP8Context::golden

Definition at line 225 of file vp8.h.

Referenced by decode_frame_header(), and decode_mb_mode().

H264PredContext VP8Context::hpc

Definition at line 252 of file vp8.h.

Referenced by intra_predict(), and vp8_decode_init().

uint8_t VP8Context::intra

Definition at line 223 of file vp8.h.

Referenced by decode_frame_header(), and decode_mb_mode().

uint8_t VP8Context::intra4x4_pred_mode_left[4]

Definition at line 171 of file vp8.h.

Referenced by decode_intra4x4_modes(), decode_mb_mode(), vp8_decode_mb_row_no_filter(), and vp8_decode_mv_mb_modes().

uint8_t* VP8Context::intra4x4_pred_mode_top

Definition at line 170 of file vp8.h.

Referenced by decode_intra4x4_modes(), decode_mb_mode(), free_buffers(), update_dimensions(), and vp8_decode_frame().

int VP8Context::invisible

Definition at line 233 of file vp8.h.

Referenced by decode_frame_header(), and vp8_decode_frame().

uint8_t VP8Context::keyframe

Definition at line 139 of file vp8.h.

Referenced by decode_frame_header(), decode_mb_mode(), filter_mb(), and vp8_decode_frame().

uint8_t VP8Context::last

Definition at line 224 of file vp8.h.

Referenced by decode_frame_header(), and decode_mb_mode().

uint8_t VP8Context::level

Definition at line 164 of file vp8.h.

Referenced by decode_frame_header(), filter_level_for_mb(), and vp8_decode_frame().

struct { ... } VP8Context::lf_delta

Referenced by decode_frame_header(), filter_level_for_mb(), update_lf_deltas(), and vp8_decode_update_thread_context().

int VP8Context::linesize

Definition at line 136 of file vp8.h.

Referenced by filter_mb(), filter_mb_simple(), idct_mb(), inter_predict(), intra_predict(), prefetch_motion(), vp8_decode_frame(), vp8_decode_mb_row_no_filter(), vp8_filter_mb_row(), and vp8_mc_part().

int16_t VP8Context::luma_dc_qmul[2]

luma dc-only block quant

Definition at line 181 of file vp8.h.

Referenced by decode_mb_coeffs(), and get_quants().

int16_t VP8Context::luma_qmul[2]

Definition at line 180 of file vp8.h.

Referenced by decode_mb_coeffs(), and get_quants().

VP8Macroblock* VP8Context::macroblocks

Definition at line 168 of file vp8.h.

Referenced by free_buffers(), update_dimensions(), vp8_decode_frame(), vp8_decode_mb_row_no_filter(), and vp8_filter_mb_row().

VP8Macroblock* VP8Context::macroblocks_base

Definition at line 232 of file vp8.h.

Referenced by decode_frame_header(), free_buffers(), update_dimensions(), vp8_decode_mb_row_no_filter(), vp8_decode_mv_mb_modes(), vp8_decode_update_thread_context(), and vp8_filter_mb_row().

int VP8Context::maps_are_invalid

Definition at line 264 of file vp8.h.

Referenced by release_queued_segmaps(), vp8_alloc_frame(), vp8_decode_flush_impl(), and vp8_decode_update_thread_context().

uint16_t VP8Context::mb_height

Definition at line 135 of file vp8.h.

Referenced by decode_frame_header(), inter_predict(), update_dimensions(), vp8_alloc_frame(), vp8_decode_frame(), vp8_decode_mb_row_no_filter(), vp8_decode_mb_row_sliced(), vp8_decode_mv_mb_modes(), vp8_decode_update_thread_context(), and vp8_filter_mb_row().

int VP8Context::mb_layout

This describes the macroblock memory layout.

0 -> Only width+height*2+1 macroblocks allocated (frame/single thread). 1 -> Macroblocks for entire frame alloced (sliced thread).

Definition at line 271 of file vp8.h.

Referenced by decode_mb_mode(), update_dimensions(), vp8_decode_frame(), vp8_decode_mb_row_no_filter(), and vp8_filter_mb_row().

uint16_t VP8Context::mb_width

Definition at line 134 of file vp8.h.

Referenced by decode_frame_header(), decode_intra4x4_modes(), decode_mvs(), decode_splitmvs(), inter_predict(), intra_predict(), update_dimensions(), vp8_alloc_frame(), vp8_decode_frame(), vp8_decode_mb_row_no_filter(), vp8_decode_mv_mb_modes(), vp8_decode_update_thread_context(), and vp8_filter_mb_row().

uint8_t VP8Context::mbskip

Definition at line 222 of file vp8.h.

Referenced by decode_frame_header(), and decode_mb_mode().

uint8_t VP8Context::mbskip_enabled

Definition at line 141 of file vp8.h.

Referenced by decode_frame_header(), and decode_mb_mode().

int8_t VP8Context::mode[VP8_MVMODE_SPLIT+1]

Definition at line 197 of file vp8.h.

Referenced by filter_level_for_mb(), and update_lf_deltas().

VP56mv VP8Context::mv_max

Definition at line 144 of file vp8.h.

Referenced by clamp_mv(), vp8_decode_frame(), vp8_decode_mb_row_no_filter(), vp8_decode_mb_row_sliced(), and vp8_decode_mv_mb_modes().

VP56mv VP8Context::mv_min

Definition at line 143 of file vp8.h.

Referenced by clamp_mv(), vp8_decode_frame(), vp8_decode_mb_row_no_filter(), vp8_decode_mb_row_sliced(), and vp8_decode_mv_mb_modes().

uint8_t VP8Context::mvc[2][19]

Definition at line 229 of file vp8.h.

Referenced by decode_frame_header(), decode_mvs(), and decode_splitmvs().

AVFrame* VP8Context::next_framep[4]

Definition at line 130 of file vp8.h.

Referenced by vp8_decode_frame().

int VP8Context::num_coeff_partitions

All coefficients are contained in separate arith coding contexts.

There can be 1, 2, 4, or 8 of these after the header context.

Definition at line 248 of file vp8.h.

Referenced by setup_partitions(), update_dimensions(), vp8_decode_frame(), and vp8_decode_mb_row_no_filter().

int VP8Context::num_jobs

Definition at line 265 of file vp8.h.

Referenced by vp8_decode_frame(), vp8_decode_mb_row_no_filter(), vp8_decode_mb_row_sliced(), and vp8_filter_mb_row().

int VP8Context::num_maps_to_be_freed

Definition at line 263 of file vp8.h.

Referenced by release_queued_segmaps(), vp8_alloc_frame(), and vp8_release_frame().

uint8_t VP8Context::pred16x16[4]

Definition at line 226 of file vp8.h.

Referenced by decode_frame_header(), and decode_mb_mode().

uint8_t VP8Context::pred8x8c[3]

Definition at line 227 of file vp8.h.

Referenced by decode_frame_header(), and decode_mb_mode().

AVFrame* VP8Context::prev_frame

Definition at line 132 of file vp8.h.

Referenced by vp8_decode_frame(), and vp8_decode_mb_row_no_filter().

struct { ... } VP8Context::prob[2]

These are all of the updatable probabilities for binary decisions.

They are only implictly reset on keyframes, making it quite likely for an interframe to desync if a prior frame's header was corrupt or missing outright!

Referenced by decode_frame_header(), decode_mb_coeffs(), decode_mb_mode(), decode_mvs(), decode_splitmvs(), parse_segment_info(), vp8_decode_frame(), and vp8_decode_update_thread_context().

uint8_t VP8Context::profile

Definition at line 142 of file vp8.h.

Referenced by decode_frame_header(), inter_predict(), and vp8_mc_part().

vp8_mc_func VP8Context::put_pixels_tab[3][3][3]

Definition at line 253 of file vp8.h.

Referenced by decode_frame_header(), inter_predict(), and vp8_mc_part().

struct { ... } VP8Context::qmat[4]

Macroblocks can have one of 4 different quants in a frame when segmentation is enabled.

If segmentation is disabled, only the first segment's values are used.

Referenced by decode_mb_coeffs(), and get_quants().

int8_t VP8Context::ref[4]

filter strength adjustment for macroblocks that reference: [0] - intra / VP56_FRAME_CURRENT [1] - VP56_FRAME_PREVIOUS [2] - VP56_FRAME_GOLDEN [3] - altref / VP56_FRAME_GOLDEN2

Definition at line 206 of file vp8.h.

Referenced by filter_level_for_mb(), and update_lf_deltas().

int VP8Context::ref_count[3]

Definition at line 147 of file vp8.h.

Referenced by decode_mb_mode(), prefetch_motion(), and vp8_decode_frame().

struct { ... } VP8Context::segmentation

Base parameters for segmentation, i.e.

per-macroblock parameters. These must be kept unchanged even if segmentation is not used for a frame, since the values persist between interframes.

Referenced by decode_frame_header(), decode_mb_mode(), filter_level_for_mb(), get_quants(), parse_segment_info(), vp8_decode_frame(), and vp8_decode_update_thread_context().