New file |
| | |
| | | /* |
| | | * Copyright (c) 2016 Neil Birkbeck <neil.birkbeck@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_MASTERING_DISPLAY_METADATA_H |
| | | #define AVUTIL_MASTERING_DISPLAY_METADATA_H |
| | | |
| | | #include "frame.h" |
| | | #include "rational.h" |
| | | |
| | | |
| | | /** |
| | | * Mastering display metadata capable of representing the color volume of |
| | | * the display used to master the content (SMPTE 2086:2014). |
| | | * |
| | | * To be used as payload of a AVFrameSideData or AVPacketSideData with the |
| | | * appropriate type. |
| | | * |
| | | * @note The struct should be allocated with av_mastering_display_metadata_alloc() |
| | | * and its size is not a part of the public ABI. |
| | | */ |
| | | typedef struct AVMasteringDisplayMetadata { |
| | | /** |
| | | * CIE 1931 xy chromaticity coords of color primaries (r, g, b order). |
| | | */ |
| | | AVRational display_primaries[3][2]; |
| | | |
| | | /** |
| | | * CIE 1931 xy chromaticity coords of white point. |
| | | */ |
| | | AVRational white_point[2]; |
| | | |
| | | /** |
| | | * Min luminance of mastering display (cd/m^2). |
| | | */ |
| | | AVRational min_luminance; |
| | | |
| | | /** |
| | | * Max luminance of mastering display (cd/m^2). |
| | | */ |
| | | AVRational max_luminance; |
| | | |
| | | /** |
| | | * Flag indicating whether the display primaries (and white point) are set. |
| | | */ |
| | | int has_primaries; |
| | | |
| | | /** |
| | | * Flag indicating whether the luminance (min_ and max_) have been set. |
| | | */ |
| | | int has_luminance; |
| | | |
| | | } AVMasteringDisplayMetadata; |
| | | |
| | | /** |
| | | * Allocate an AVMasteringDisplayMetadata structure and set its fields to |
| | | * default values. The resulting struct can be freed using av_freep(). |
| | | * |
| | | * @return An AVMasteringDisplayMetadata filled with default values or NULL |
| | | * on failure. |
| | | */ |
| | | AVMasteringDisplayMetadata *av_mastering_display_metadata_alloc(void); |
| | | |
| | | /** |
| | | * Allocate a complete AVMasteringDisplayMetadata and add it to the frame. |
| | | * |
| | | * @param frame The frame which side data is added to. |
| | | * |
| | | * @return The AVMasteringDisplayMetadata structure to be filled by caller. |
| | | */ |
| | | AVMasteringDisplayMetadata *av_mastering_display_metadata_create_side_data(AVFrame *frame); |
| | | |
| | | /** |
| | | * Content light level needed by to transmit HDR over HDMI (CTA-861.3). |
| | | * |
| | | * To be used as payload of a AVFrameSideData or AVPacketSideData with the |
| | | * appropriate type. |
| | | * |
| | | * @note The struct should be allocated with av_content_light_metadata_alloc() |
| | | * and its size is not a part of the public ABI. |
| | | */ |
| | | typedef struct AVContentLightMetadata { |
| | | /** |
| | | * Max content light level (cd/m^2). |
| | | */ |
| | | unsigned MaxCLL; |
| | | |
| | | /** |
| | | * Max average light level per frame (cd/m^2). |
| | | */ |
| | | unsigned MaxFALL; |
| | | } AVContentLightMetadata; |
| | | |
| | | /** |
| | | * Allocate an AVContentLightMetadata structure and set its fields to |
| | | * default values. The resulting struct can be freed using av_freep(). |
| | | * |
| | | * @return An AVContentLightMetadata filled with default values or NULL |
| | | * on failure. |
| | | */ |
| | | AVContentLightMetadata *av_content_light_metadata_alloc(size_t *size); |
| | | |
| | | /** |
| | | * Allocate a complete AVContentLightMetadata and add it to the frame. |
| | | * |
| | | * @param frame The frame which side data is added to. |
| | | * |
| | | * @return The AVContentLightMetadata structure to be filled by caller. |
| | | */ |
| | | AVContentLightMetadata *av_content_light_metadata_create_side_data(AVFrame *frame); |
| | | |
| | | #endif /* AVUTIL_MASTERING_DISPLAY_METADATA_H */ |