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* video, options: implement better YUV->RGB conversion controlGravatar wm42011-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rewrite control of the colorspace and input/output level parameters used in YUV-RGB conversions, replacing VO-specific suboptions with new common options and adding configuration support to more cases. Add new option --colormatrix which selects the colorspace the original video is assumed to have in YUV->RGB conversions. The default behavior changes from assuming BT.601 to colorspace autoselection between BT.601 and BT.709 using a simple heuristic based on video size. Add new options --colormatrix-input-range and --colormatrix-output-range which select input YUV and output RGB range. Disable the previously existing VO-specific colorspace and level conversion suboptions in vo_gl and vo_vdpau. Remove the "yuv_colorspace" property and replace it with one named "colormatrix" and semantics matching the new option. Add new properties matching the options for level conversion. Colorspace selection is currently supported by vo_gl, vo_vdpau, vo_xv and vf_scale, and all can change it at runtime (previously only vo_vdpau and vo_xv could). vo_vdpau now uses the same conversion matrix generation as vo_gl instead of libvdpau functionality; the main functional difference is that the "contrast" equalizer control behaves somewhat differently (it scales the Y component around 1/2 instead of around 0, so that contrast 0 makes the image gray rather than black). vo_xv does not support level conversion. vf_scale supports range setting for input, but always outputs full-range RGB. The value of the slave properties is the policy setting used for conversions. This means they can be set to any value regardless of whether the current VO supports that value or whether there currently even is any video. Possibly separate properties could be added to query the conversion actually used at the moment, if any. Because the colorspace and level settings are now set with a single VF/VO control call, the return value of that is no longer used to signal whether all the settings are actually supported. Instead code should set all the details it can support, and ignore the rest. The core will use GET_YUV_COLORSPACE to check which colorspace details have been set and which not. In other words, the return value for SET_YUV_COLORSPACE only signals whether any kind of YUV colorspace conversion handling exists at all, and VOs have to take care to return the actual state with GET_YUV_COLORSPACE instead. To be changed in later commits: add missing option documentation.
* Add missing license headers to all files in the libmpcodecs directory.Gravatar diego2010-01-30
| | | | git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@30463 b3059339-0415-0410-9bf9-f77b7e298cf2
* Add MPLAYER_ prefix to multiple inclusion guards.Gravatar diego2008-02-22
| | | | git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@26061 b3059339-0415-0410-9bf9-f77b7e298cf2
* Add multiple inclusion guards to all header files that lack them.Gravatar diego2008-01-01
| | | | git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@25581 b3059339-0415-0410-9bf9-f77b7e298cf2
* Patch by Stefan Huehner / stefan % huehner ! org \Gravatar rathann2006-02-09
| | | | | | | | | | | | | | | | | | | | | | patch replaces '()' for the correct '(void)' in function declarations/prototypes which have no parameters. The '()' syntax tell thats there is a variable list of arguments, so that the compiler cannot check this. The extra CFLAG '-Wstrict-declarations' shows those cases. Comments about a similar patch applied to ffmpeg: That in C++ these mean the same, but in ANSI C the semantics are different; function() is an (obsolete) K&R C style forward declaration, it basically means that the function can have any number and any types of parameters, effectively completely preventing the compiler from doing any sort of type checking. -- Erik Slagter Defining functions with unspecified arguments is allowed but bad. With arguments unspecified the compiler can't report an error/warning if the function is called with incorrect arguments. -- Måns Rullgård git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17567 b3059339-0415-0410-9bf9-f77b7e298cf2
* vf_scale.h & related cleanup & some small warning fix by dominikGravatar michael2003-06-01
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@10234 b3059339-0415-0410-9bf9-f77b7e298cf2