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FFmpeg/libavcodec/hevcpred.h
Andreas Rheinhardt 6265b155bc avcodec/hevcpred: Pass HEVCLocalContext when slice-threading
The HEVC decoder has both HEVCContext and HEVCLocalContext
structures. The latter is supposed to be the structure
containing the per-slicethread state.

Yet that is not how it is handled in practice: Each HEVCLocalContext
has a unique HEVCContext allocated for it and each of these
coincides except in exactly one field: The corresponding
HEVCLocalContext. This makes it possible to pass the HEVCContext
everywhere where logically a HEVCLocalContext should be used.

This commit stops doing this for lavc/hevcpred as well as
the corresponding mips code; the latter is untested.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-07-25 23:32:08 +02:00

47 lines
1.7 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_HEVCPRED_H
#define AVCODEC_HEVCPRED_H
#include <stddef.h>
#include <stdint.h>
struct HEVCLocalContext;
typedef struct HEVCPredContext {
void (*intra_pred[4])(struct HEVCLocalContext *lc, 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);
} HEVCPredContext;
void ff_hevc_pred_init(HEVCPredContext *hpc, int bit_depth);
void ff_hevc_pred_init_mips(HEVCPredContext *hpc, int bit_depth);
#endif /* AVCODEC_HEVCPRED_H */