FFmpeg
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Chinese AVS video (AVS1-P2, JiZhun profile) decoder. More...
#include "avcodec.h"
#include "get_bits.h"
#include "golomb.h"
#include "h264chroma.h"
#include "mathops.h"
#include "cavs.h"
Go to the source code of this file.
Macros | |
#define | SET_PARAMS |
#define | LOWPASS(ARRAY, INDEX) ((ARRAY[(INDEX) - 1] + 2 * ARRAY[(INDEX)] + ARRAY[(INDEX) + 1] + 2) >> 2) |
Functions | |
static int | get_bs (cavs_vector *mvP, cavs_vector *mvQ, int b) |
void | ff_cavs_filter (AVSContext *h, enum cavs_mb mb_type) |
in-loop deblocking filter for a single macroblock | |
void | ff_cavs_load_intra_pred_luma (AVSContext *h, uint8_t *top, uint8_t **left, int block) |
void | ff_cavs_load_intra_pred_chroma (AVSContext *h) |
static void | intra_pred_vert (uint8_t *d, uint8_t *top, uint8_t *left, int stride) |
static void | intra_pred_horiz (uint8_t *d, uint8_t *top, uint8_t *left, int stride) |
static void | intra_pred_dc_128 (uint8_t *d, uint8_t *top, uint8_t *left, int stride) |
static void | intra_pred_plane (uint8_t *d, uint8_t *top, uint8_t *left, int stride) |
static void | intra_pred_lp (uint8_t *d, uint8_t *top, uint8_t *left, int stride) |
static void | intra_pred_down_left (uint8_t *d, uint8_t *top, uint8_t *left, int stride) |
static void | intra_pred_down_right (uint8_t *d, uint8_t *top, uint8_t *left, int stride) |
static void | intra_pred_lp_left (uint8_t *d, uint8_t *top, uint8_t *left, int stride) |
static void | intra_pred_lp_top (uint8_t *d, uint8_t *top, uint8_t *left, int stride) |
static void | modify_pred (const int8_t *mod_table, int *mode) |
void | ff_cavs_modify_mb_i (AVSContext *h, int *pred_mode_uv) |
static void | mc_dir_part (AVSContext *h, AVFrame *pic, int chroma_height, int delta, int list, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int src_x_offset, int src_y_offset, qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op, cavs_vector *mv) |
static void | mc_part_std (AVSContext *h, int chroma_height, int delta, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int x_offset, int y_offset, qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put, qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg, cavs_vector *mv) |
void | ff_cavs_inter (AVSContext *h, enum cavs_mb mb_type) |
static void | scale_mv (AVSContext *h, int *d_x, int *d_y, cavs_vector *src, int distp) |
static void | mv_pred_median (AVSContext *h, cavs_vector *mvP, cavs_vector *mvA, cavs_vector *mvB, cavs_vector *mvC) |
void | ff_cavs_mv (AVSContext *h, enum cavs_mv_loc nP, enum cavs_mv_loc nC, enum cavs_mv_pred mode, enum cavs_block size, int ref) |
void | ff_cavs_init_mb (AVSContext *h) |
initialise predictors for motion vectors and intra prediction | |
int | ff_cavs_next_mb (AVSContext *h) |
save predictors for later macroblocks and increase macroblock address | |
int | ff_cavs_init_pic (AVSContext *h) |
void | ff_cavs_init_top_lines (AVSContext *h) |
some predictions require data from the top-neighbouring macroblock. | |
av_cold int | ff_cavs_init (AVCodecContext *avctx) |
av_cold int | ff_cavs_end (AVCodecContext *avctx) |
Variables | |
static const uint8_t | alpha_tab [64] |
static const uint8_t | beta_tab [64] |
static const uint8_t | tc_tab [64] |
static const cavs_vector | un_mv = { 0, 0, 1, NOT_AVAIL } |
mark block as unavailable, i.e. | |
static const int8_t | left_modifier_l [8] = { 0, -1, 6, -1, -1, 7, 6, 7 } |
static const int8_t | top_modifier_l [8] = { -1, 1, 5, -1, -1, 5, 7, 7 } |
static const int8_t | left_modifier_c [7] = { 5, -1, 2, -1, 6, 5, 6 } |
static const int8_t | top_modifier_c [7] = { 4, 1, -1, -1, 4, 6, 6 } |
Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
Definition in file cavs.c.
#define SET_PARAMS |
#define LOWPASS | ( | ARRAY, | |
INDEX | |||
) | ((ARRAY[(INDEX) - 1] + 2 * ARRAY[(INDEX)] + ARRAY[(INDEX) + 1] + 2) >> 2) |
Definition at line 292 of file cavs.c.
Referenced by avfilter_register_all(), intra_pred_down_left(), intra_pred_down_right(), intra_pred_lp(), intra_pred_lp_left(), and intra_pred_lp_top().
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inlinestatic |
Definition at line 71 of file cavs.c.
Referenced by ff_cavs_filter().
void ff_cavs_filter | ( | AVSContext * | h, |
enum cavs_mb | mb_type | ||
) |
in-loop deblocking filter for a single macroblock
boundary strength (bs) mapping:
–4—5– 0 2 | | 6 | 7 |
Definition at line 106 of file cavs.c.
Referenced by decode_mb_b(), decode_mb_i(), and decode_mb_p().
void ff_cavs_load_intra_pred_luma | ( | AVSContext * | h, |
uint8_t * | top, | ||
uint8_t ** | left, | ||
int | block | ||
) |
Definition at line 178 of file cavs.c.
Referenced by decode_mb_i().
void ff_cavs_load_intra_pred_chroma | ( | AVSContext * | h | ) |
Definition at line 229 of file cavs.c.
Referenced by decode_mb_i().
Definition at line 247 of file cavs.c.
Referenced by ff_cavs_init().
Definition at line 255 of file cavs.c.
Referenced by ff_cavs_init().
Definition at line 265 of file cavs.c.
Referenced by ff_cavs_init().
Definition at line 273 of file cavs.c.
Referenced by ff_cavs_init().
Definition at line 295 of file cavs.c.
Referenced by ff_cavs_init().
Definition at line 303 of file cavs.c.
Referenced by ff_cavs_init().
Definition at line 311 of file cavs.c.
Referenced by ff_cavs_init().
Definition at line 324 of file cavs.c.
Referenced by ff_cavs_init().
Definition at line 332 of file cavs.c.
Referenced by ff_cavs_init().
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inlinestatic |
Definition at line 342 of file cavs.c.
Referenced by ff_cavs_modify_mb_i().
void ff_cavs_modify_mb_i | ( | AVSContext * | h, |
int * | pred_mode_uv | ||
) |
Definition at line 351 of file cavs.c.
Referenced by decode_mb_i().
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inlinestatic |
Definition at line 378 of file cavs.c.
Referenced by mc_part_std().
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inlinestatic |
Definition at line 443 of file cavs.c.
Referenced by ff_cavs_inter(), and mc_part().
void ff_cavs_inter | ( | AVSContext * | h, |
enum cavs_mb | mb_type | ||
) |
Definition at line 481 of file cavs.c.
Referenced by decode_mb_b(), and decode_mb_p().
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inlinestatic |
Definition at line 524 of file cavs.c.
Referenced by mv_pred_median().
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inlinestatic |
Definition at line 533 of file cavs.c.
Referenced by ff_cavs_mv().
void ff_cavs_mv | ( | AVSContext * | h, |
enum cavs_mv_loc | nP, | ||
enum cavs_mv_loc | nC, | ||
enum cavs_mv_pred | mode, | ||
enum cavs_block | size, | ||
int | ref | ||
) |
Definition at line 563 of file cavs.c.
Referenced by decode_mb_b(), and decode_mb_p().
void ff_cavs_init_mb | ( | AVSContext * | h | ) |
initialise predictors for motion vectors and intra prediction
Definition at line 618 of file cavs.c.
Referenced by decode_mb_b(), decode_mb_i(), and decode_mb_p().
int ff_cavs_next_mb | ( | AVSContext * | h | ) |
save predictors for later macroblocks and increase macroblock address
Definition at line 659 of file cavs.c.
Referenced by decode_pic().
int ff_cavs_init_pic | ( | AVSContext * | h | ) |
Definition at line 704 of file cavs.c.
Referenced by decode_pic().
void ff_cavs_init_top_lines | ( | AVSContext * | h | ) |
some predictions require data from the top-neighbouring macroblock.
this data has to be stored for one complete row of macroblocks and this storage space is allocated here
Definition at line 740 of file cavs.c.
Referenced by decode_seq_header().
av_cold int ff_cavs_init | ( | AVCodecContext * | avctx | ) |
av_cold int ff_cavs_end | ( | AVCodecContext * | avctx | ) |
Definition at line 803 of file cavs.c.
Referenced by ff_cavs_init().
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mark block as unavailable, i.e.
out of picture or not yet decoded
Definition at line 58 of file cavs.c.
Referenced by ff_cavs_init(), ff_cavs_init_mb(), and ff_cavs_mv().
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Definition at line 60 of file cavs.c.
Referenced by ff_cavs_modify_mb_i().
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Definition at line 61 of file cavs.c.
Referenced by ff_cavs_modify_mb_i().
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Definition at line 62 of file cavs.c.
Referenced by ff_cavs_modify_mb_i().
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Definition at line 63 of file cavs.c.
Referenced by ff_cavs_modify_mb_i().