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* avutil/{color_utils, csp}: merge color_utils into csp and expose APILeo Izen2023-02-091-234/+0
| | | | | | | | | | | | | | | | | | | | | | | | libavutil/color_utils contains some avpriv_ symbols that map enum AVTransferCharacteristic values to gamma-curve approximations and to the actual transfer functions to invert them (i.e. -> linear). There's two issues with this: (1) avpriv is evil and should be avoided whenever possible (2) libavutil/csp.h exposes a public API for handling color that already handles primaries and matricies I don't see any reason this API has to be private, so this commit takes the functionality from avutil/color_utils and merges it into avutil/csp with an exposed av_ API rather than the previous avpriv_ API. Every reference to the previous API has been updated to point to the new one. color_utils.h has been deleted as well. This should not break any applications as it only contained avpriv_ symbols in the first place, so nothing in that header could be referenced by other applications. Signed-off-by: Leo Izen <leo.izen@gmail.com> Signed-off-by: Anton Khirnov <anton@khirnov.net>
* Remove unnecessary libavutil/(avutil|common|internal).h inclusionsAndreas Rheinhardt2022-02-241-1/+0
| | | | | | | | | | Some of these were made possible by moving several common macros to libavutil/macros.h. While just at it, also improve the other headers a bit. Reviewed-by: Martin Storsjö <martin@martin.st> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* lavu: Adding ARIB STD-B67 (hybrid log-gamma) enum value and transfer function.Neil Birkbeck2016-06-011-0/+16
| | | | | | | | | | | | | | | | | | Adding hybrid log-gamma (https://en.wikipedia.org/wiki/Hybrid_Log-Gamma) based on the standardization in ARIB STD-B67: http://www.arib.or.jp/english/html/overview/doc/2-STD-B67v1_0.pdf The choice of enum value of 18 is consistent with HEVC: http://phenix.it-sudparis.eu/jct/doc_end_user/current_document.php?id=10481 And also with latest proposal for color format in mkv: https://mailarchive.ietf.org/arch/search/?email_list=cellar&gbt=1&q=Colour+Format+proposal The implementation assumes a nominal input range of [0, 1], which is consistent with HEVC. Signed-off-by: Neil Birkbeck <neil.birkbeck@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* Merge commit 'd12b5b2f135aade4099f4b26b0fe678656158c13'Derek Buitenhuis2016-05-111-28/+0
| | | | | | | | * commit 'd12b5b2f135aade4099f4b26b0fe678656158c13': build: Split test programs off into separate files Some conversions done by: James Almer <jamrial@gmail.com> Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
* avutil/color_utils: Mark test_data as static constMichael Niedermayer2016-03-031-1/+1
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* Add test for avpriv_get_trc_function_from_trc functionNagaChaitanya Vellanki2016-03-031-0/+29
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avutil/color_utils: Add basic transfer functions for each ↵Kevin Wheatley2015-09-101-0/+166
| | | | | | | | | | AVColorTransferCharacteristic Most functions are valid over a domain and range of [0.0-1.0] but some are defined over greater. This patch does not deal with AVColorRange and assumes AVCOL_RANGE_JPEG for the returned values. Signed-off-by: Kevin Wheatley <kevin.j.wheatley@gmail.com>
* avutil: Extract gamma determination from PNG encoder for future use. Adds ↵Kevin Wheatley2015-03-051-0/+52
private avpriv_get_gamma_from_trc() function to libavutil. Signed-off-by: Kevin Wheatley <kevin.j.wheatley@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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