/* * Copyright (c) 2018 Mohammad Izadi <moh.izadi at gmail.com> * * 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 AVUTIL_HDR_DYNAMIC_METADATA_H #define AVUTIL_HDR_DYNAMIC_METADATA_H #include "frame.h" #include "rational.h" /** * Option for overlapping elliptical pixel selectors in an image. */ enum AVHDRPlusOverlapProcessOption { … }; /** * Represents the percentile at a specific percentage in * a distribution. */ AVHDRPlusPercentile; /** * Color transform parameters at a processing window in a dynamic metadata for * SMPTE 2094-40. */ AVHDRPlusColorTransformParams; /** * This struct represents dynamic metadata for color volume transform - * application 4 of SMPTE 2094-40:2016 standard. * * To be used as payload of a AVFrameSideData or AVPacketSideData with the * appropriate type. * * @note The struct should be allocated with * av_dynamic_hdr_plus_alloc() and its size is not a part of * the public ABI. */ AVDynamicHDRPlus; /** * Allocate an AVDynamicHDRPlus structure and set its fields to * default values. The resulting struct can be freed using av_freep(). * * @return An AVDynamicHDRPlus filled with default values or NULL * on failure. */ AVDynamicHDRPlus *av_dynamic_hdr_plus_alloc(size_t *size); /** * Allocate a complete AVDynamicHDRPlus and add it to the frame. * @param frame The frame which side data is added to. * * @return The AVDynamicHDRPlus structure to be filled by caller or NULL * on failure. */ AVDynamicHDRPlus *av_dynamic_hdr_plus_create_side_data(AVFrame *frame); /** * Parse the user data registered ITU-T T.35 to AVbuffer (AVDynamicHDRPlus). * The T.35 buffer must begin with the application mode, skipping the * country code, terminal provider codes, and application identifier. * @param s A pointer containing the decoded AVDynamicHDRPlus structure. * @param data The byte array containing the raw ITU-T T.35 data. * @param size Size of the data array in bytes. * * @return >= 0 on success. Otherwise, returns the appropriate AVERROR. */ int av_dynamic_hdr_plus_from_t35(AVDynamicHDRPlus *s, const uint8_t *data, size_t size); #define AV_HDR_PLUS_MAX_PAYLOAD_SIZE … /** * Serialize dynamic HDR10+ metadata to a user data registered ITU-T T.35 buffer, * excluding the first 48 bytes of the header, and beginning with the application mode. * @param s A pointer containing the decoded AVDynamicHDRPlus structure. * @param[in,out] data A pointer to pointer to a byte buffer to be filled with the * serialized metadata. * If *data is NULL, a buffer be will be allocated and a pointer to * it stored in its place. The caller assumes ownership of the buffer. * May be NULL, in which case the function will only store the * required buffer size in *size. * @param[in,out] size A pointer to a size to be set to the returned buffer's size. * If *data is not NULL, *size must contain the size of the input * buffer. May be NULL only if *data is NULL. * * @return >= 0 on success. Otherwise, returns the appropriate AVERROR. */ int av_dynamic_hdr_plus_to_t35(const AVDynamicHDRPlus *s, uint8_t **data, size_t *size); #endif /* AVUTIL_HDR_DYNAMIC_METADATA_H */
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