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/*
* Dolby Vision RPU decoder
*
* Copyright (C) 2021 Jan Ekström
* Copyright (C) 2021-2024 Niklas Haas
*
* 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
*/
#include "libavutil/mem.h"
#include "dovi_rpu.h"
#include "refstruct.h"
void ff_dovi_ctx_unref(DOVIContext *s)
{
for (int i = 0; i < FF_ARRAY_ELEMS(s->vdr); i++)
ff_refstruct_unref(&s->vdr[i]);
ff_refstruct_unref(&s->ext_blocks);
av_free(s->rpu_buf);
*s = (DOVIContext) {
.logctx = s->logctx,
};
}
void ff_dovi_ctx_flush(DOVIContext *s)
{
for (int i = 0; i < FF_ARRAY_ELEMS(s->vdr); i++)
ff_refstruct_unref(&s->vdr[i]);
ff_refstruct_unref(&s->ext_blocks);
*s = (DOVIContext) {
.logctx = s->logctx,
.cfg = s->cfg,
/* preserve temporary buffer */
.rpu_buf = s->rpu_buf,
.rpu_buf_sz = s->rpu_buf_sz,
};
}
void ff_dovi_ctx_replace(DOVIContext *s, const DOVIContext *s0)
{
s->logctx = s0->logctx;
s->cfg = s0->cfg;
s->header = s0->header;
s->mapping = s0->mapping;
s->color = s0->color;
for (int i = 0; i <= DOVI_MAX_DM_ID; i++)
ff_refstruct_replace(&s->vdr[i], s0->vdr[i]);
ff_refstruct_replace(&s->ext_blocks, s0->ext_blocks);
}
int ff_dovi_guess_profile_hevc(const AVDOVIRpuDataHeader *hdr)
{
switch (hdr->vdr_rpu_profile) {
case 0:
if (hdr->bl_video_full_range_flag)
return 5;
break;
case 1:
if (hdr->el_spatial_resampling_filter_flag && !hdr->disable_residual_flag) {
if (hdr->vdr_bit_depth == 12) {
return 7;
} else {
return 4;
}
} else {
return 8;
}
}
return 0; /* unknown */
}
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