diff options
author | Vittorio Giovara <vittorio.giovara@gmail.com> | 2017-06-09 17:35:22 -0400 |
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committer | Vittorio Giovara <vittorio.giovara@gmail.com> | 2017-06-28 09:42:24 -0400 |
commit | 3426832ac3074e081923095f7794064a30642841 (patch) | |
tree | 74e78188da372f02531c776b62e9645f4fd7b1e5 /libavcodec/hevc_sei.h | |
parent | 850c6db97d1f78e7607952ab8b854a93a185319e (diff) |
hevc: Add support for alternative transfer characterics SEI
The use of this SEI is for backward compatibility in HLG HDR systems:
older devices that cannot interpret the "arib-std-b67" transfer will
get the compatible transfer (usually bt709 or bt2020) from the VUI,
while newer devices that can interpret HDR will read the SEI and use
its value instead.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Diffstat (limited to 'libavcodec/hevc_sei.h')
-rw-r--r-- | libavcodec/hevc_sei.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavcodec/hevc_sei.h b/libavcodec/hevc_sei.h index 5645e4f5de..1b522227ec 100644 --- a/libavcodec/hevc_sei.h +++ b/libavcodec/hevc_sei.h @@ -56,6 +56,7 @@ typedef enum { HEVC_SEI_TYPE_REGION_REFRESH_INFO = 134, HEVC_SEI_TYPE_MASTERING_DISPLAY_INFO = 137, HEVC_SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO = 144, + HEVC_SEI_TYPE_ALTERNATIVE_TRANSFER_CHARACTERISTICS = 147, } HEVC_SEI_Type; typedef struct HEVCSEIPictureHash { @@ -100,6 +101,11 @@ typedef struct HEVCSEIContentLight { uint16_t max_pic_average_light_level; } HEVCSEIContentLight; +typedef struct HEVCSEIAlternativeTransfer { + int present; + int preferred_transfer_characteristics; +} HEVCSEIAlternativeTransfer; + typedef struct HEVCSEIContext { HEVCSEIPictureHash picture_hash; HEVCSEIFramePacking frame_packing; @@ -109,6 +115,7 @@ typedef struct HEVCSEIContext { HEVCSEIMasteringDisplay mastering_display; HEVCSEIContentLight content_light; int active_seq_parameter_set_id; + HEVCSEIAlternativeTransfer alternative_transfer; } HEVCSEIContext; struct HEVCParamSets; |