Files
FFmpeg/libavcodec/hevc/pred.h
Jun Zhao a3d8e417c0 lavc/hevc: extract reference sample filter into function pointers
Extract 3-tap [1,2,1]>>2 and strong intra smoothing from
intra_pred() into HEVCPredContext function pointers, preparing
for arch-specific overrides.

ref_filter_3tap[3] indexed by log2_size - 3 (sizes 8/16/32).
ref_filter_strong for 32x32 luma only.

Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
2026-04-21 07:50:49 +00:00

56 lines
2.1 KiB
C

/*
* HEVC video Decoder
*
* Copyright (C) 2012 - 2013 Guillaume Martres
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_HEVC_PRED_H
#define AVCODEC_HEVC_PRED_H
#include <stddef.h>
#include <stdint.h>
struct HEVCLocalContext;
struct HEVCPPS;
typedef struct HEVCPredContext {
void (*intra_pred[4])(struct HEVCLocalContext *lc,
const struct HEVCPPS *pps, int x0, int y0, int c_idx);
void (*pred_planar[4])(uint8_t *src, const uint8_t *top,
const uint8_t *left, ptrdiff_t stride);
void (*pred_dc)(uint8_t *src, const uint8_t *top, const uint8_t *left,
ptrdiff_t stride, int log2_size, int c_idx);
void (*pred_angular[4])(uint8_t *src, const uint8_t *top,
const uint8_t *left, ptrdiff_t stride,
int c_idx, int mode);
void (*ref_filter_3tap[3])(uint8_t *filtered_left, uint8_t *filtered_top,
const uint8_t *left, const uint8_t *top,
int size);
void (*ref_filter_strong)(uint8_t *filtered_top, uint8_t *left,
const uint8_t *top);
} HEVCPredContext;
void ff_hevc_pred_init(HEVCPredContext *hpc, int bit_depth);
void ff_hevc_pred_init_mips(HEVCPredContext *hpc, int bit_depth);
void ff_hevc_pred_init_aarch64(HEVCPredContext *hpc, int bit_depth);
#endif /* AVCODEC_HEVC_PRED_H */