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2019-05-27doc/swscaler: explain default Lanczos parameterWerner Robitza
Explain that the default Lanczos filter parameter is 3 and that it can be changed by the param0 option. Signed-off-by: Werner Robitza <werner.robitza@gmail.com>
2019-05-17doc/scaler: explain values for src_range, dst_rangeWerner Robitza
This fixes the description of the values for src_range and dst_range to include the possible values and their meanings. Signed-off-by: Werner Robitza <werner.robitza@gmail.com> Signed-off-by: Gyan Doshi <ffmpeg@gyani.pro>
2019-05-17doc/scaler: indicate some options as API only.Gyan Doshi
srcw, srch, dstw, dsth, src_format and dst_format were blocked for CLI use in a0af9fd954 in order to fix ticket #4856
2017-01-10doc/scaler: mention default scaling algorithmLou Logan
Default is "bicubic". Signed-off-by: Lou Logan <lou@lrcd.com> Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
2016-01-20vf_scale: eval, param0 and param1 documentationBela Bodecs
Documentation of eval, param0 and param1 parameters Signed-off-by: Bela Bodecs <bodecsb@vivanet.hu> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-10-10doc/scaler, swscale/options: use proper capitalizationGanesh Ajjanagadde
Proper names should be capitalized in all user facing API as far as possible. The option names themselves have not been changed since: 1. We consistently keep option names in lower case. 2. Changing them would break existing scripts. The converse is also true: improper names should not be capitalized generally. Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-08-09swscale/alphablend: Support SWS_ALPHA_BLEND_CHECKERBOARDMichael Niedermayer
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-08-08swscale: Implement alphablendaway for planar 4:4:4 formatsMichael Niedermayer
Fixes Ticket4746 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2014-03-25swscale: add two spatially stable dithering methodsØyvind Kolås
Both of these dithering methods are from http://pippin.gimp.org/a_dither/ for GIF they can be considered better than bayer (provides more gray-levels), and spatial stability - often more than twice as good compression and less visual flicker than error diffusion methods (the methods also avoids error-shadow artifacts of diffusion dithers). These methods are similar to blue/green noise type dither masks; but are simple enough to generate their mask on the fly. They are still research work in progress; though more expensive to generate masks (which can be used in a LUT) like 'void and cluster' and similar methods will yield superior results
2014-03-25dox/scaler:fix bicubiclin typoMichael Niedermayer
See Ticket3486 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-30doc: move sws_dither option description to scaler.texiStefano Sabatini
That's the more proper place where the scaler options should be documented.
2013-09-30doc/filters/scale: mention and link scaler optionsStefano Sabatini
2013-09-30doc: try to add a link from the vf_scale sws_flags to the scaler docsMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-04-05doc: move ffmpeg-scaler.texi content to separated fileStefano Sabatini
This should simplify inclusion in monolithic tool manuals.
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