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/*
* This file is part of libplacebo.
*
* libplacebo 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.
*
* libplacebo 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 libplacebo. If not, see <http://www.gnu.org/licenses/>.
*/
#include "common.h"
#include <libplacebo/utils/dolbyvision.h>
#ifdef PL_HAVE_LIBDOVI
#include <libplacebo/tone_mapping.h>
#include <libdovi/rpu_parser.h>
#endif
void pl_hdr_metadata_from_dovi_rpu(struct pl_hdr_metadata *out,
const uint8_t *buf, size_t size)
{
#ifdef PL_HAVE_LIBDOVI
if (buf && size) {
DoviRpuOpaque *rpu =
dovi_parse_unspec62_nalu(buf, size);
const DoviRpuDataHeader *header = dovi_rpu_get_header(rpu);
if (header && header->vdr_dm_metadata_present_flag) {
// Profile 4 reshaping isn't done as it is a dual layer format.
// However there are still unknowns on its EOTF, so it cannot be enabled.
//
// For profile 7, the brightness metadata can still be used as most
// titles are going to have accurate metadata<->image brightness,
// with the exception of some titles that require the enhancement layer
// to be processed to restore the intended brightness, which would then
// match the metadata values.
if (header->guessed_profile == 4) {
goto done;
}
const DoviVdrDmData *vdr_dm_data = dovi_rpu_get_vdr_dm_data(rpu);
if (vdr_dm_data->dm_data.level1) {
const DoviExtMetadataBlockLevel1 *l1 = vdr_dm_data->dm_data.level1;
out->max_pq_y = l1->max_pq / 4095.0f;
out->avg_pq_y = l1->avg_pq / 4095.0f;
}
dovi_rpu_free_vdr_dm_data(vdr_dm_data);
}
done:
dovi_rpu_free_header(header);
dovi_rpu_free(rpu);
}
#endif
}
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