summaryrefslogtreecommitdiff
path: root/libavfilter/vf_scale.c
Commit message (Collapse)AuthorAge
* avutil/pixdesc: deprecate AV_PIX_FMT_FLAG_PSEUDOPALwm42018-04-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PSEUDOPAL pixel formats are not paletted, but carried a palette with the intention of allowing code to treat unpaletted formats as paletted. The palette simply mapped the byte values to the resulting RGB values, making it some sort of LUT for RGB conversion. It was used for 1 byte formats only: RGB4_BYTE, BGR4_BYTE, RGB8, BGR8, GRAY8. The first 4 are awfully obscure, used only by some ancient bitmap formats. The last one, GRAY8, is more common, but its treatment is grossly incorrect. It considers full range GRAY8 only, so GRAY8 coming from typical Y video planes was not mapped to the correct RGB values. This cannot be fixed, because AVFrame.color_range can be freely changed at runtime, and there is nothing to ensure the pseudo palette is updated. Also, nothing actually used the PSEUDOPAL palette data, except xwdenc (trivially changed in the previous commit). All other code had to treat it as a special case, just to ignore or to propagate palette data. In conclusion, this was just a very strange old mechnaism that has no real justification to exist anymore (although it may have been nice and useful in the past). Now it's an artifact that makes the API harder to use: API users who allocate their own pixel data have to be aware that they need to allocate the palette, or FFmpeg will crash on them in _some_ situations. On top of this, there was no API to allocate the pseuo palette outside of av_frame_get_buffer(). This patch not only deprecates AV_PIX_FMT_FLAG_PSEUDOPAL, but also makes the pseudo palette optional. Nothing accesses it anymore, though if it's set, it's propagated. It's still allocated and initialized for compatibility with API users that rely on this feature. But new API users do not need to allocate it. This was an explicit goal of this patch. Most changes replace AV_PIX_FMT_FLAG_PSEUDOPAL with FF_PSEUDOPAL. I first tried #ifdefing all code, but it was a mess. The FF_PSEUDOPAL macro reduces the mess, and still allows defining FF_API_PSEUDOPAL to 0. Passes FATE with FF_API_PSEUDOPAL enabled and disabled. In addition, FATE passes with FF_API_PSEUDOPAL set to 1, but with allocation functions manually changed to not allocating a palette.
* avfilter/vf_scale: add more aliases for "range" optionsPaul B Mahol2017-12-08
| | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* lavfi/scale2ref: Set output frame rate to main input frame rate.Carl Eugen Hoyos2017-11-08
| | | | Fixes ticket #6817.
* libavfilter/scale2ref: Maintain main input's DARKevin Mark2017-07-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The scale2ref filter will now maintain the DAR of the main input and not the DAR of the reference input. This previous behavior was deemed counterintuitive for most (all?) use-cases. Before: scale2ref=iw/4:ow/mdar in w:320 h:240 fmt:rgb24 sar:1/1 ref w:640 h:360 fmt:rgb24 sar:1/1 out w:160 h:120 fmt:rgb24 sar:4/3 flags:0x2 SAR: ((120 * 640) / (160 * 360)) * (1 / 1) = 4 / 3 DAR: (160 / 120) * (4 / 3) = 16 / 9 (main out now same DAR as ref) Now: scale2ref=iw/4:ow/mdar in w:320 h:240 fmt:rgb24 sar:1/1 ref w:640 h:360 fmt:rgb24 sar:1/1 out w:160 h:120 fmt:rgb24 sar:1/1 flags:0x2 SAR: ((120 * 320) / (160 * 240)) * (1 / 1) = 1 / 1 DAR: (160 / 120) * (1 / 1) = 4 / 3 (main out same DAR as main in) The scale2ref FATE test has also been updated. Signed-off-by: Kevin Mark <kmark937@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avfilter: do not use AVFrame accessorMuhammad Faiz2017-04-23
| | | | | Reviewed-by: wm4 <nfxjfg@googlemail.com> Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
* avfilter/vf_scale: Fix chroma positioning for 4:2:0 pixel formatMaksym Veremeyenko2017-02-07
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avfilter/scale: refactor common code for scaling height/width expressionsAman Gupta2017-02-02
| | | | | | | Implements support for height/width expressions in vf_scale_vaapi, by refactoring common code into a new libavfilter/scale.c Signed-off-by: Mark Thompson <sw@jkqxz.net>
* vf_scale: support bt2020 in in/out_color_matrix properties.Ronald S. Bultje2016-04-17
|
* vf_scale: Detecting changes of incoming frame properties and dinamically ↵Bela Bodecs2016-01-20
| | | | | | | | | | | | | | | | | | | | | | | | evaluate width and height expressions Currently scale filter accepts expressions in its width and height parameters but evaluates them only once at init and replaces them with their actual values. Later on, if any parameter of incoming frames changes - ie those were used in the original size expressions - then they new values will not have any affect for width and heigth values. They remain the same. This patch makes possible that width and height expressions be evaluated frame-by-frame basis if width/height/sar/format properties of incoming frame would change. To retain the current behaviour and not to break any earlier app, a new config parameter has been introduced. Its name is "eval" and it has two distinct values: "init" and "frame". The default value is "init". This feature is very usefull in case of DVBT mpeg-ts streams where SAR may change time-by-time from 4/3 to 16/9 and vica-versa and the size remains the same and you want to create a variable sized output with 1/1 SAR. Signed-off-by: Bela Bodecs <bodecsb@vivanet.hu> Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avfilter/vf_scale: set proper out frame color rangeThomas Mundt2015-12-31
| | | | | | | | Prevents that following scalers in the filter chain will do unintentional color range conversions. Fixes Ticket #5096 Signed-off-by: Thomas Mundt <loudmax@yahoo.de> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* lavfi/scale: add nb_slices debug optionClément Bœsch2015-12-21
|
* avfilter: use AV_OPT_TYPE_BOOL in a bunch of placesClément Bœsch2015-12-04
|
* avfilter/all: propagate errors of functions from avfilter/formatsGanesh Ajjanagadde2015-10-14
| | | | | | | | | | | | | | | | | | Many of the functions from avfilter/formats can return errors, usually AVERROR(ENOMEM). This propagates the return values. All of these were found by using av_warn_unused_result, demonstrating its utility. Tested with FATE. I am least sure of the changes to avfilter/filtergraph, since I don't know what/how reduce_format is intended to behave and how it should react to errors. Fixes: CID 1325680, 1325679, 1325678. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Previous version Reviewed-by: Nicolas George <george@nsup.org> Previous version Reviewed-by: Clément Bœsch <u@pkh.me> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
* vf_scale: conditionally override chroma positionChristophe Gisquet2015-09-23
| | | | | | | | | | For yuv420p, the chroma position is unilaterally overriden, even if ffmpeg's command-line explicitly set it. To fix this, override only if the value is the default one. Regression since 1515bfb3. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* lavfi/scale: Pass src_range and dst_range to libswscale.Carl Eugen Hoyos2015-09-01
| | | | Fixes ticket #4812.
* Merge commit 'b1abd2aaf91be249f24cb74db9c205d9e4ca9da6'Hendrik Leppkes2015-08-31
|\ | | | | | | | | | | | | * commit 'b1abd2aaf91be249f24cb74db9c205d9e4ca9da6': vf_scale: Add an option to pass the scaler params Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
| * vf_scale: Add an option to pass the scaler paramsLuca Barbato2015-08-26
| | | | | | | | Reported-By: zehan@magicpony.technology
| * Revert "lavfi: always check av_expr_parse_and_eval() return value"Anton Khirnov2015-05-05
| | | | | | | | | | | | | | This reverts commit 63be97ec403023fb664798432acedaf6e6922527. All those calls were unchecked on purpose, as explained in the comments in the code.
| * lavfi: always check av_expr_parse_and_eval() return valueVittorio Giovara2014-12-18
| | | | | | | | | | CC: libav-stable@libav.org Bug-Id: CID 703624
* | avfilter/vf_scale: If no output color matrix is specified, use the inputMichael Niedermayer2015-08-31
| | | | | | | | | | | | This should only affect yuv->yuv, and not change behavior Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | avfilter/vf_scale: Do not skip scale if the color matrix mismatchesMichael Niedermayer2015-08-31
| | | | | | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | avfilter/vf_scale: Do not skip scale if range mismatchesCarl Eugen Hoyos2015-08-31
| | | | | | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | scale2ref: override request_frame() and correctly connect them to the ↵Michael Niedermayer2015-08-18
| | | | | | | | | | | | corresponding inputs Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | avfilter/vf_scale: Set scale2ref ref output timebaseMichael Niedermayer2015-08-18
| | | | | | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | avfilter: add scale2ref filterMichael Niedermayer2015-08-17
| | | | | | | | | | | | | | This filter can be used to scale one stream to match another or based on another, useful to scale subtitles or other things to be overlayed Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | avfilter/vf_scale: apply generic options after flags.Michael Niedermayer2015-08-08
| | | | | | | | | | | | Otherwise the flags overwrite anything set by the generic stuff to the flags Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | libavfilter/vf_scale: implement process_commandBernd Bleßmann2015-07-21
| | | | | | | | | | Signed-off-by: Bernd Bleßmann <bb@it-entwicklung.de> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | avfilter/vf_scale: Add warning for AVCOL_SPC_YCGCOMichael Niedermayer2015-04-13
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | vf_scale: Use correct chroma positions for YUV420PKieran Kunhya2014-12-25
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | avfilter/vf_scale: Allow chroma samples to be above and to the left of luma ↵Michael Niedermayer2014-09-21
| | | | | | | | | | | | | | samples Found-by: Kierank Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | avfilter/vf_scale: fix log message categoryMichael Niedermayer2014-07-28
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | Merge commit '862f33c10ea38ea49fa4188725df5e5246dbd1d8'Michael Niedermayer2014-05-27
|\| | | | | | | | | | | | | | | | | | | * commit '862f33c10ea38ea49fa4188725df5e5246dbd1d8': vf_scale: use the pixfmt descriptor API Conflicts: libavfilter/vf_scale.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * vf_scale: use the pixfmt descriptor APIAnton Khirnov2014-05-26
| | | | | | | | | | | | Avoid using AV_PIX_FMT_NB, since that hardcodes the number of pixel formats into lavfi and will break when a shared lavu is updated, adding new pixel formats.
* | Merge commit '58400ac133bcfb6bf8196b4e5208bc178307739b'Michael Niedermayer2014-04-19
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * commit '58400ac133bcfb6bf8196b4e5208bc178307739b': lavfi: name anonymous structs Conflicts: libavfilter/buffersink.c libavfilter/f_select.c libavfilter/src_movie.c libavfilter/vf_drawbox.c libavfilter/vf_drawtext.c libavfilter/vf_overlay.c libavfilter/vf_showinfo.c libavfilter/vf_unsharp.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * lavfi: name anonymous structsVittorio Giovara2014-04-19
| |
| * vf_scale: make the dar variable return the DAR.Rudolf Polzer2013-11-02
| | | | | | | | | | | | | | | | | | Before, it just returned width/height. Correct is width/height*sar. That way it is consistent with DAR as in probe output and setdar. Signed-off-by: Rudolf Polzer <divverent@xonotic.org> Signed-off-by: Anton Khirnov <anton@khirnov.net>
* | avfilter/vf_scale: simplify alignment codeMichael Niedermayer2014-01-25
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | avfilter/vf_scale: do aspect ratio and scale factor compensation togetherMichael Niedermayer2014-01-25
| | | | | | | | | | | | Fixes rounding error Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | Documentation for scale filter factorLars Kiesow2014-01-25
| |
* | Fixed factor for scale filterLars Kiesow2014-01-25
| |
* | Factors for scale filterLars Kiesow2014-01-25
| |
* | avfilter/vf_scale: add ov/hsubMichael Niedermayer2013-11-04
| | | | | | | | | | | | Suggested-by: divVerent Reviewed-by: Stefano Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | Merge remote-tracking branch 'qatar/master'Michael Niedermayer2013-10-29
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * qatar/master: lavfi: do not export the filters from shared objects Conflicts: libavfilter/af_amix.c libavfilter/af_anull.c libavfilter/asrc_anullsrc.c libavfilter/f_select.c libavfilter/f_settb.c libavfilter/split.c libavfilter/src_movie.c libavfilter/vf_aspect.c libavfilter/vf_blackframe.c libavfilter/vf_colorbalance.c libavfilter/vf_copy.c libavfilter/vf_crop.c libavfilter/vf_cropdetect.c libavfilter/vf_drawbox.c libavfilter/vf_format.c libavfilter/vf_framestep.c libavfilter/vf_frei0r.c libavfilter/vf_hflip.c libavfilter/vf_libopencv.c libavfilter/vf_lut.c libavfilter/vf_null.c libavfilter/vf_overlay.c libavfilter/vf_scale.c libavfilter/vf_transpose.c libavfilter/vf_unsharp.c libavfilter/vf_vflip.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * lavfi: do not export the filters from shared objectsAnton Khirnov2013-10-28
| |
* | avfilter/vf_scale: Correct vf_scale mappings from arguments to color rangeRobert Krüger2013-10-23
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | avfilter/vf_scale: dont duplicate default.Michael Niedermayer2013-10-06
| | | | | | | | | | | | | | use the defaults set by swscale Suggested-by: stefano Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | avfilter/vf_scale: change the default scaler to bicubicMichael Niedermayer2013-10-06
| | | | | | | | | | See: [FFmpeg-devel] [PATCH] swscale/options: switch default to bicubic Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | lavfi/pad,crop,scale: remove options description from filter descriptionPaul B Mahol2013-09-21
| | | | | | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* | avfilter: various cosmeticsPaul B Mahol2013-09-12
| | | | | | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* | avfilter/vf_scale+aresample: minor simpificationMichael Niedermayer2013-08-16
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-26 07:45:27 +0000