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61bc8764d4
It avoids allocations and the corresponding error checks. Also avoids casts and indirections. Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/*
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* Dolby Vision RPU decoder
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*
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* Copyright (C) 2021 Jan Ekström
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* Copyright (C) 2021 Niklas Haas
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_DOVI_RPU_H
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#define AVCODEC_DOVI_RPU_H
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#include "libavutil/dovi_meta.h"
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#include "libavutil/frame.h"
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#define DOVI_MAX_DM_ID 15
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typedef struct DOVIContext {
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void *logctx;
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/**
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* Currently active RPU data header, updates on every dovi_rpu_parse().
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*/
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AVDOVIRpuDataHeader header;
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/**
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* Currently active data mappings, or NULL. Points into memory owned by the
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* corresponding rpu/vdr_ref, which becomes invalid on the next call to
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* dovi_rpu_parse.
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*/
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const AVDOVIDataMapping *mapping;
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const AVDOVIColorMetadata *color;
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/**
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* Private fields internal to dovi_rpu.c
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*/
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struct DOVIVdr *vdr[DOVI_MAX_DM_ID+1]; ///< RefStruct references
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uint8_t dv_profile;
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} DOVIContext;
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void ff_dovi_ctx_replace(DOVIContext *s, const DOVIContext *s0);
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/**
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* Completely reset a DOVIContext, preserving only logctx.
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*/
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void ff_dovi_ctx_unref(DOVIContext *s);
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/**
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* Partially reset the internal state. Resets per-frame state while preserving
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* fields parsed from the configuration record.
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*/
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void ff_dovi_ctx_flush(DOVIContext *s);
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/**
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* Read the contents of an AVDOVIDecoderConfigurationRecord (usually provided
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* by stream side data) and update internal state accordingly.
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*/
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void ff_dovi_update_cfg(DOVIContext *s, const AVDOVIDecoderConfigurationRecord *cfg);
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/**
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* Parse the contents of a Dovi RPU NAL and update the parsed values in the
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* DOVIContext struct.
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*
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* Returns 0 or an error code.
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*/
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int ff_dovi_rpu_parse(DOVIContext *s, const uint8_t *rpu, size_t rpu_size);
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/**
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* Attach the decoded AVDOVIMetadata as side data to an AVFrame.
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*/
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int ff_dovi_attach_side_data(DOVIContext *s, AVFrame *frame);
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#endif /* AVCODEC_DOVI_RPU_H */
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