#include <vp8.h>
Public Member Functions | |
DECLARE_ALIGNED (8, uint8_t, left_nnz)[9] | |
DECLARE_ALIGNED (16, uint8_t, non_zero_count_cache)[6][4] | |
This is the index plus one of the last non-zero coeff for each of the blocks in the current macroblock. | |
DECLARE_ALIGNED (16, DCTELEM, block)[6][4][16] | |
DECLARE_ALIGNED (16, DCTELEM, block_dc)[16] | |
Data Fields | |
AVCodecContext * | avctx |
DSPContext | dsp |
VP8DSPContext | vp8dsp |
H264PredContext | hpc |
vp8_mc_func | put_pixels_tab [3][3][3] |
AVFrame | frames [4] |
AVFrame * | framep [4] |
uint8_t * | edge_emu_buffer |
VP56RangeCoder | c |
header context, includes mb modes and motion vectors | |
int | profile |
int | mb_width |
int | mb_height |
int | linesize |
int | uvlinesize |
int | keyframe |
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 | deblock_filter |
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] |
VP8Macroblock * | macroblocks |
VP8Macroblock * | macroblocks_base |
VP8FilterStrength * | filter_strength |
uint8_t * | intra4x4_pred_mode_top |
uint8_t | intra4x4_pred_mode_left [4] |
uint8_t * | segmentation_map |
uint8_t(* | top_border )[16+8+8] |
Cache of the top row needed for intra prediction 16 for luma, 8 for each chroma plane. | |
uint8_t(* | top_nnz )[9] |
For coeff decode, we need to know whether the above block had non-zero coefficients. | |
uint8_t | intra4x4_pred_mode_mb [16] |
int | chroma_pred_mode |
8x8c pred mode of the current macroblock | |
int | segment |
segment of the current macroblock | |
VP56mv | mv_min |
VP56mv | mv_max |
int | mbskip_enabled |
int | sign_bias [4] |
one state [0, 1] per ref frame type | |
int | ref_count [3] |
struct { | |
int enabled | |
int absolute_vals | |
int update_map | |
int8_t base_quant [4] | |
int8_t filter_level [4] | |
base loop filter level | |
} | segmentation |
Base parameters for segmentation, i.e. | |
struct { | |
int16_t luma_qmul [2] | |
int16_t luma_dc_qmul [2] | |
luma dc-only block quant | |
int16_t chroma_qmul [2] | |
} | qmat [4] |
Macroblocks can have one of 4 different quants in a frame when segmentation is enabled. | |
struct { | |
int simple | |
int level | |
int sharpness | |
} | filter |
struct { | |
int enabled | |
whether each mb can have a different strength based on mode/ref | |
int8_t mode [VP8_MVMODE_SPLIT+1] | |
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 |
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][17][3][NUM_DCT_TOKENS-1] | |
uint8_t mvc [2][19] | |
} | prob [2] |
These are all of the updatable probabilities for binary decisions. |
Definition at line 86 of file vp8.h.
VP8Context::DECLARE_ALIGNED | ( | 8 | , | |
uint8_t | , | |||
left_nnz | ||||
) |
VP8Context::DECLARE_ALIGNED | ( | 16 | , | |
uint8_t | , | |||
non_zero_count_cache | ||||
) |
This is the index plus one of the last non-zero coeff for each of the blocks in the current macroblock.
So, 0 -> no coeffs 1 -> dc-only (special transform) 2+-> full transform
VP8Context::DECLARE_ALIGNED | ( | 16 | , | |
DCTELEM | , | |||
block | ||||
) |
VP8Context::DECLARE_ALIGNED | ( | 16 | , | |
DCTELEM | , | |||
block_dc | ||||
) |
Definition at line 87 of file vp8.h.
Referenced by decode_frame_header(), intra_predict(), update_dimensions(), and vp8_decode_init().
Definition at line 88 of file vp8.h.
Referenced by prefetch_motion(), vp8_decode_frame(), vp8_decode_init(), vp8_mc_chroma(), and vp8_mc_luma().
Definition at line 89 of file vp8.h.
Referenced by decode_frame_header(), decode_mb_coeffs(), filter_mb(), filter_mb_simple(), idct_mb(), intra_predict(), and vp8_decode_init().
vp8_mc_func VP8Context::put_pixels_tab[3][3][3] |
Definition at line 91 of file vp8.h.
Referenced by decode_frame_header(), inter_predict(), and vp8_mc_part().
Definition at line 93 of file vp8.h.
Referenced by filter_mb_row(), filter_mb_row_simple(), inter_predict(), prefetch_motion(), vp8_decode_flush(), and vp8_decode_frame().
uint8_t* VP8Context::edge_emu_buffer |
Definition at line 94 of file vp8.h.
Referenced by vp8_decode_flush(), vp8_decode_frame(), vp8_mc_chroma(), and vp8_mc_luma().
header context, includes mb modes and motion vectors
Definition at line 95 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().
Definition at line 96 of file vp8.h.
Referenced by decode_frame_header(), inter_predict(), and vp8_mc_part().
Definition at line 98 of file vp8.h.
Referenced by filter_mb_row(), filter_mb_row_simple(), inter_predict(), intra_predict(), update_dimensions(), and vp8_decode_frame().
Definition at line 99 of file vp8.h.
Referenced by inter_predict(), update_dimensions(), and vp8_decode_frame().
Definition at line 100 of file vp8.h.
Referenced by filter_mb(), filter_mb_row(), filter_mb_row_simple(), filter_mb_simple(), idct_mb(), inter_predict(), intra_predict(), prefetch_motion(), vp8_decode_frame(), and vp8_mc_part().
Definition at line 101 of file vp8.h.
Referenced by filter_mb(), filter_mb_row(), idct_mb(), inter_predict(), intra_predict(), prefetch_motion(), vp8_decode_frame(), and vp8_mc_part().
Definition at line 103 of file vp8.h.
Referenced by decode_frame_header(), decode_mb_mode(), filter_mb(), and vp8_decode_frame().
update VP56_FRAME_PREVIOUS with the current one
Definition at line 105 of file vp8.h.
Referenced by decode_frame_header(), and vp8_decode_frame().
VP56_FRAME_NONE if not updated, or which frame to copy if so.
Definition at line 106 of file vp8.h.
Referenced by decode_frame_header(), update_refs(), and vp8_decode_frame().
Definition at line 107 of file vp8.h.
Referenced by decode_frame_header(), update_refs(), and vp8_decode_frame().
If this flag is not set, all the probability updates are discarded after this frame is decoded.
Definition at line 114 of file vp8.h.
Referenced by decode_frame_header(), and vp8_decode_frame().
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 120 of file vp8.h.
Referenced by setup_partitions(), and vp8_decode_frame().
Definition at line 123 of file vp8.h.
Referenced by update_dimensions(), vp8_decode_flush(), and vp8_decode_frame().
Definition at line 124 of file vp8.h.
Referenced by decode_frame_header(), update_dimensions(), and vp8_decode_flush().
Definition at line 125 of file vp8.h.
Referenced by filter_mb_row(), filter_mb_row_simple(), update_dimensions(), vp8_decode_flush(), and vp8_decode_frame().
uint8_t* VP8Context::intra4x4_pred_mode_top |
Definition at line 127 of file vp8.h.
Referenced by decode_intra4x4_modes(), decode_mb_mode(), update_dimensions(), vp8_decode_flush(), and vp8_decode_frame().
uint8_t VP8Context::intra4x4_pred_mode_left[4] |
Definition at line 128 of file vp8.h.
Referenced by decode_intra4x4_modes(), decode_mb_mode(), and vp8_decode_frame().
uint8_t* VP8Context::segmentation_map |
Definition at line 129 of file vp8.h.
Referenced by update_dimensions(), vp8_decode_flush(), and vp8_decode_frame().
uint8_t(* VP8Context::top_border)[16+8+8] |
Cache of the top row needed for intra prediction 16 for luma, 8 for each chroma plane.
Definition at line 135 of file vp8.h.
Referenced by filter_mb_row(), filter_mb_row_simple(), intra_predict(), update_dimensions(), vp8_decode_flush(), and vp8_decode_frame().
uint8_t(* VP8Context::top_nnz)[9] |
For coeff decode, we need to know whether the above block had non-zero coefficients.
This means for each macroblock, we need data for 4 luma blocks, 2 u blocks, 2 v blocks, and the luma dc block, for a total of 9 per macroblock. We keep the last row in top_nnz.
Definition at line 143 of file vp8.h.
Referenced by update_dimensions(), vp8_decode_flush(), and vp8_decode_frame().
uint8_t VP8Context::intra4x4_pred_mode_mb[16] |
8x8c pred mode of the current macroblock
Definition at line 158 of file vp8.h.
Referenced by decode_mb_mode(), and intra_predict().
segment of the current macroblock
Definition at line 159 of file vp8.h.
Referenced by decode_mb_coeffs(), decode_mb_mode(), and filter_level_for_mb().
int VP8Context::sign_bias[4] |
one state [0, 1] per ref frame type
Definition at line 164 of file vp8.h.
Referenced by decode_frame_header(), and decode_mvs().
int VP8Context::ref_count[3] |
Definition at line 165 of file vp8.h.
Referenced by decode_mb_mode(), prefetch_motion(), and vp8_decode_frame().
whether each mb can have a different strength based on mode/ref
Definition at line 173 of file vp8.h.
Referenced by decode_frame_header(), filter_level_for_mb(), and get_quants().
Definition at line 174 of file vp8.h.
Referenced by filter_level_for_mb(), get_quants(), and parse_segment_info().
Definition at line 175 of file vp8.h.
Referenced by decode_frame_header(), decode_mb_mode(), and parse_segment_info().
int8_t VP8Context::base_quant[4] |
int8_t VP8Context::filter_level[4] |
base loop filter level
Definition at line 177 of file vp8.h.
Referenced by filter_level_for_mb(), and parse_segment_info().
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(), and parse_segment_info().
int16_t VP8Context::luma_qmul[2] |
int16_t VP8Context::luma_dc_qmul[2] |
luma dc-only block quant
Definition at line 188 of file vp8.h.
Referenced by decode_mb_coeffs(), and get_quants().
int16_t VP8Context::chroma_qmul[2] |
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().
Definition at line 193 of file vp8.h.
Referenced by decode_frame_header(), intra_predict(), and vp8_decode_frame().
Definition at line 194 of file vp8.h.
Referenced by decode_frame_header(), filter_level_for_mb(), and vp8_decode_frame().
Definition at line 195 of file vp8.h.
Referenced by decode_frame_header(), and filter_level_for_mb().
struct { ... } VP8Context::filter |
Referenced by decode_frame_header(), filter_level_for_mb(), intra_predict(), and vp8_decode_frame().
int8_t VP8Context::mode[VP8_MVMODE_SPLIT+1] |
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
Definition at line 210 of file vp8.h.
Referenced by filter_level_for_mb(), and update_lf_deltas().
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 219 of file vp8.h.
Referenced by filter_level_for_mb(), and update_lf_deltas().
struct { ... } VP8Context::lf_delta |
Referenced by decode_frame_header(), filter_level_for_mb(), and update_lf_deltas().
uint8_t VP8Context::segmentid[3] |
uint8_t VP8Context::mbskip |
uint8_t VP8Context::intra |
uint8_t VP8Context::last |
uint8_t VP8Context::golden |
uint8_t VP8Context::pred16x16[4] |
uint8_t VP8Context::pred8x8c[3] |
uint8_t VP8Context::token[4][17][3][NUM_DCT_TOKENS-1] |
uint8_t VP8Context::mvc[2][19] |
Definition at line 238 of file vp8.h.
Referenced by decode_frame_header(), decode_mvs(), and decode_splitmvs().
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(), and vp8_decode_frame().