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avutil/hdr_dynamic_metadata: allow av_dynamic_hdr_plus_to_t35() to accept an existing buffer

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The function now accepts an existing buffer to avoid unnecessary allocations,
as well as only reporting the needed amount of bytes if you pass a NULL pointer
as input for data.
For this, both parameters become input and output, as well as making data
optional. This is backwards compatible, and as such not breaking any existing
use of the function in external code (if there's any).

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2023-04-01 12:12:11 -03:00
parent 1c2a1e0750
commit 61b27b15fc
4 changed files with 37 additions and 12 deletions
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@@ -2,6 +2,11 @@ The last version increases of all libraries were on 2023-02-09
API changes, most recent first:
2023-04-04 - xxxxxxxxxx - lavu 58.6.100 - hdr_dynamic_metadata.h
Add AV_HDR_PLUS_MAX_PAYLOAD_SIZE.
av_dynamic_hdr_plus_create_side_data() now accepts a user provided
buffer.
2023-03-xx - xxxxxxxxxx - lavfi 9.5.100 - avfilter.h
Add AVFILTER_FLAG_HWDEVICE.