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avutil/csp: add av_csp_trc_inv_from_id()

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Mathematical inverse of av_csp_trc_from_id(), plus testing to make sure it
roundtrips correctly with the corresponding TRC.
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Niklas Haas
2024-11-25 13:35:34 +01:00
parent 28f217780b
commit bf0a6c4111
6 changed files with 471 additions and 319 deletions
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doc/APIchanges
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@@ -2,6 +2,9 @@ The last version increases of all libraries were on 2024-03-07
API changes, most recent first:
2024-12-05 - xxxxxxxxxx - lavu 59.48.100 - csp.h
Add av_csp_trc_func_inv_from_id().
2024-11-25 - xxxxxxxxxx - lsws 8.12.100 - swscale.h
Allow using sws_frame_scale() dynamically, without first initializing the
SwsContext. Deprecate sws_init_context(). Add sws_frame_setup() instead.