diff options
author | Neil Birkbeck <neil.birkbeck@gmail.com> | 2016-01-16 16:19:38 -0800 |
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committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-01-19 16:43:31 +0100 |
commit | d91718107c33960ad295950d7419e6dba292d723 (patch) | |
tree | 7491c55faf2a1e675dd88d4ee61c87ecc474955e /libavutil/mastering_display_metadata.c | |
parent | 22f64c23244f4b83f59b866387ebeb8edca21b0d (diff) |
libavutil: add mastering display metadata sidedata
Adding mastering display metadata struct to avutil. The mastering display metadata contains information
about the mastering display color volume (SMPTE 2086:2014).
This info comes from HEVC in the SEI_TYPE_MASTERING_DISPLAY_INFO and is soon to be included in MKV:
https://mailarchive.ietf.org/arch/search/?email_list=cellar&gbt=1&index=sZyfPTM-QY69P-0omfOIiTN622o
so it is similar to SEI FPA / stereo_mode in MKV and as such this patch follows how AVStereo3D is implemented.
I'll add support to HEVC in a follow-up (and MKV when spec is approved).
Signed-off-by: Neil Birkbeck <neil.birkbeck@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavutil/mastering_display_metadata.c')
-rw-r--r-- | libavutil/mastering_display_metadata.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/libavutil/mastering_display_metadata.c b/libavutil/mastering_display_metadata.c new file mode 100644 index 0000000000..e1683e55c7 --- /dev/null +++ b/libavutil/mastering_display_metadata.c @@ -0,0 +1,43 @@ +/** + * 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 + */ + +#include <stdint.h> +#include <string.h> + +#include "mastering_display_metadata.h" +#include "mem.h" + +AVMasteringDisplayMetadata *av_mastering_display_metadata_alloc(void) +{ + return av_mallocz(sizeof(AVMasteringDisplayMetadata)); +} + +AVMasteringDisplayMetadata *av_mastering_display_metadata_create_side_data(AVFrame *frame) +{ + AVFrameSideData *side_data = av_frame_new_side_data(frame, + AV_FRAME_DATA_MASTERING_DISPLAY_METADATA, + sizeof(AVMasteringDisplayMetadata)); + if (!side_data) + return NULL; + + memset(side_data->data, 0, sizeof(AVMasteringDisplayMetadata)); + + return (AVMasteringDisplayMetadata *)side_data->data; +} |