Quoting lance.lmw...@gmail.com (2020-01-07 06:03:48)
> From: Limin Wang <lance.lmw...@gmail.com>
>
> Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
> ---
> doc/APIchanges | 3 +++
> libavutil/frame.c | 1 +
> libavutil/frame.h | 8 ++++++++
> libavutil/version.h | 2 +-
> 4 files changed, 13 insertions(+), 1 deletion(-)
>
> diff --git a/doc/APIchanges b/doc/APIchanges
> index 3c24dc6fbc..6e1673e25e 100644
> --- a/doc/APIchanges
> +++ b/doc/APIchanges
> @@ -15,6 +15,9 @@ libavutil: 2017-10-21
>
> API changes, most recent first:
>
> +2020-01-xx - xxxxxxxxxx - lavu 56.39.100 - frame.h
> + Add AV_FRAME_DATA_USER_DATA_UNREGISTERED.
> +
> 2019-12-27 - xxxxxxxxxx - lavu 56.38.100 - eval.h
> Add av_expr_count_func().
>
> diff --git a/libavutil/frame.c b/libavutil/frame.c
> index e4038096c2..1d0faec687 100644
> --- a/libavutil/frame.c
> +++ b/libavutil/frame.c
> @@ -842,6 +842,7 @@ const char *av_frame_side_data_name(enum
> AVFrameSideDataType type)
> #endif
> case AV_FRAME_DATA_DYNAMIC_HDR_PLUS: return "HDR Dynamic Metadata
> SMPTE2094-40 (HDR10+)";
> case AV_FRAME_DATA_REGIONS_OF_INTEREST: return "Regions Of Interest";
> + case AV_FRAME_DATA_USER_DATA_UNREGISTERED: return "User Data
> Unregistered";
> }
> return NULL;
> }
> diff --git a/libavutil/frame.h b/libavutil/frame.h
> index b5afb58634..54863c86ce 100644
> --- a/libavutil/frame.h
> +++ b/libavutil/frame.h
> @@ -179,6 +179,14 @@ enum AVFrameSideDataType {
> * array element is implied by AVFrameSideData.size /
> AVRegionOfInterest.self_size.
> */
> AV_FRAME_DATA_REGIONS_OF_INTEREST,
> +
> + /**
> + * User data unregistered metadata associated with a video frame.
> + * This is the H.26[45] UDU SEI message, and shouldn't be used for any
> other purpose
> + * The data is stored as uint8_t in AVFrameSideData.data which is 16
> bytes of
> + * uuid_iso_iec_11578 followed by AVFrameSideData.size-16 bytes of
> user_data_payload_byte.
> + */
> + AV_FRAME_DATA_USER_DATA_UNREGISTERED,
This naming is too generic IMO. Something like
AV_FRAME_DATA_SEI_UNREGISTERED would make it clearer that it refers to
the H.26x concept rather than any other kind of "registration" or "user
data".
--
Anton Khirnov
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