| /* |
| * Copyright (c) 2020 Jun Zhao<barryjzhao@tencent.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 |
| */ |
| |
| #include <string.h> |
| |
| #include "dovi_meta.h" |
| #include "mem.h" |
| |
| AVDOVIDecoderConfigurationRecord *av_dovi_alloc(size_t *size) |
| { |
| AVDOVIDecoderConfigurationRecord *dovi = |
| av_mallocz(sizeof(AVDOVIDecoderConfigurationRecord)); |
| if (!dovi) |
| return NULL; |
| |
| if (size) |
| *size = sizeof(*dovi); |
| |
| return dovi; |
| } |
| |
| typedef struct AVDOVIMetadataInternal { |
| AVDOVIMetadata metadata; |
| AVDOVIRpuDataHeader header; |
| AVDOVIDataMapping mapping; |
| AVDOVIColorMetadata color; |
| AVDOVIDmData ext_blocks[AV_DOVI_MAX_EXT_BLOCKS]; |
| } AVDOVIMetadataInternal; |
| |
| AVDOVIMetadata *av_dovi_metadata_alloc(size_t *size) |
| { |
| AVDOVIMetadataInternal *dovi = av_mallocz(sizeof(AVDOVIMetadataInternal)); |
| if (!dovi) |
| return NULL; |
| |
| if (size) |
| *size = sizeof(*dovi); |
| |
| dovi->metadata = (struct AVDOVIMetadata) { |
| .header_offset = offsetof(AVDOVIMetadataInternal, header), |
| .mapping_offset = offsetof(AVDOVIMetadataInternal, mapping), |
| .color_offset = offsetof(AVDOVIMetadataInternal, color), |
| .ext_block_offset = offsetof(AVDOVIMetadataInternal, ext_blocks), |
| .ext_block_size = sizeof(AVDOVIDmData), |
| }; |
| |
| return &dovi->metadata; |
| } |
| |
| AVDOVIDmData *av_dovi_find_level(const AVDOVIMetadata *data, uint8_t level) |
| { |
| for (int i = 0; i < data->num_ext_blocks; i++) { |
| AVDOVIDmData *ext = av_dovi_get_ext(data, i); |
| if (ext->level == level) |
| return ext; |
| } |
| |
| return NULL; |
| } |