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lavfi: port MP stereo3d filter
Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol
@@ -23,6 +23,7 @@ version <next>:
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- noise filter ported from libmpcodecs
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- Subtitles character encoding conversion
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- blend filter
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- stereo3d filter ported from libmpcodecs
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version 1.1:
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1
LICENSE
1
LICENSE
@@ -39,6 +39,7 @@ Specifically, the GPL parts of FFmpeg are
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- vf_noise.c
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- vf_pp.c
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- vf_smartblur.c
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- vf_stereo3d.c
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- vf_super2xsai.c
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- vf_tinterlace.c
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- vf_yadif.c
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1
configure
vendored
1
configure
vendored
@@ -2081,6 +2081,7 @@ removelogo_filter_deps="avcodec avformat swscale"
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scale_filter_deps="swscale"
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smartblur_filter_deps="gpl swscale"
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showspectrum_filter_deps="avcodec rdft"
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stereo3d_filter_deps="gpl"
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subtitles_filter_deps="avformat avcodec libass"
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super2xsai_filter_deps="gpl"
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tinterlace_filter_deps="gpl"
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121
doc/filters.texi
121
doc/filters.texi
@@ -4832,6 +4832,127 @@ a pixel should be blurred or not. A value of 0 will filter all the
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image, a value included in [0,30] will filter flat areas and a value
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included in [-30,0] will filter edges.
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@section stereo3d
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Convert between different stereoscopic image formats.
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This filter accepts the following named options, expressed as a
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sequence of @var{key}=@var{value} pairs, separated by ":".
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@table @option
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@item in
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Set stereoscopic image format of input.
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Available values for input image formats are:
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@table @samp
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@item sbsl
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side by side parallel (left eye left, right eye right)
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@item sbsr
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side by side crosseye (right eye left, left eye right)
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@item sbs2l
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side by side parallel with half width resolution
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(left eye left, right eye right)
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@item sbs2r
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side by side crosseye with half width resolution
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(right eye left, left eye right)
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@item abl
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above-below (left eye above, right eye below)
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@item abr
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above-below (right eye above, left eye below)
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@item ab2l
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above-below with half height resolution
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(left eye above, right eye below)
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@item ab2r
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above-below with half height resolution
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(right eye above, left eye below)
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Default value is @samp{sbsl}.
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@end table
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@item out
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Set stereoscopic image format of output.
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Available values for output image formats are all the input formats as well as:
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@table @samp
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@item arbg
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anaglyph red/blue gray
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(red filter on left eye, blue filter on right eye)
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@item argg
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anaglyph red/green gray
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(red filter on left eye, green filter on right eye)
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@item arcg
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anaglyph red/cyan gray
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(red filter on left eye, cyan filter on right eye)
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@item arch
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anaglyph red/cyan half colored
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(red filter on left eye, cyan filter on right eye)
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@item arcc
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anaglyph red/cyan color
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(red filter on left eye, cyan filter on right eye)
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@item arcd
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anaglyph red/cyan color optimized with the least squares projection of dubois
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(red filter on left eye, cyan filter on right eye)
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@item agmg
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anaglyph green/magenta gray
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(green filter on left eye, magenta filter on right eye)
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@item agmh
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anaglyph green/magenta half colored
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(green filter on left eye, magenta filter on right eye)
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@item agmc
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anaglyph green/magenta colored
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(green filter on left eye, magenta filter on right eye)
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@item agmd
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anaglyph green/magenta color optimized with the least squares projection of dubois
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(green filter on left eye, magenta filter on right eye)
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@item aybg
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anaglyph yellow/blue gray
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(yellow filter on left eye, blue filter on right eye)
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@item aybh
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anaglyph yellow/blue half colored
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(yellow filter on left eye, blue filter on right eye)
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@item aybc
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anaglyph yellow/blue colored
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(yellow filter on left eye, blue filter on right eye)
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@item aybd
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anaglyph yellow/blue color optimized with the least squares projection of dubois
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(yellow filter on left eye, blue filter on right eye)
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@item irl
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interleaved rows (left eye has top row, right eye starts on next row)
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@item irr
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interleaved rows (right eye has top row, left eye starts on next row)
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@item ml
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mono output (left eye only)
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@item mr
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mono output (right eye only)
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@end table
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Default value is @samp{arcd}.
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@end table
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@anchor{subtitles}
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@section subtitles
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@@ -154,6 +154,7 @@ OBJS-$(CONFIG_SETTB_FILTER) += f_settb.o
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OBJS-$(CONFIG_SHOWINFO_FILTER) += vf_showinfo.o
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OBJS-$(CONFIG_SMARTBLUR_FILTER) += vf_smartblur.o
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OBJS-$(CONFIG_SPLIT_FILTER) += split.o
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OBJS-$(CONFIG_STEREO3D_FILTER) += vf_stereo3d.o
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OBJS-$(CONFIG_SUBTITLES_FILTER) += vf_subtitles.o
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OBJS-$(CONFIG_SUPER2XSAI_FILTER) += vf_super2xsai.o
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OBJS-$(CONFIG_SWAPUV_FILTER) += vf_swapuv.o
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@@ -148,6 +148,7 @@ void avfilter_register_all(void)
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REGISTER_FILTER(SHOWINFO, showinfo, vf);
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REGISTER_FILTER(SMARTBLUR, smartblur, vf);
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REGISTER_FILTER(SPLIT, split, vf);
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REGISTER_FILTER(STEREO3D, stereo3d, vf);
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REGISTER_FILTER(SUBTITLES, subtitles, vf);
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REGISTER_FILTER(SUPER2XSAI, super2xsai, vf);
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REGISTER_FILTER(SWAPUV, swapuv, vf);
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@@ -29,7 +29,7 @@
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#include "libavutil/avutil.h"
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#define LIBAVFILTER_VERSION_MAJOR 3
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#define LIBAVFILTER_VERSION_MINOR 41
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#define LIBAVFILTER_VERSION_MINOR 42
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#define LIBAVFILTER_VERSION_MICRO 100
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#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
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478
libavfilter/vf_stereo3d.c
Normal file
478
libavfilter/vf_stereo3d.c
Normal file
@@ -0,0 +1,478 @@
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/*
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* Copyright (c) 2010 Gordon Schmidt <gordon.schmidt <at> s2000.tu-chemnitz.de>
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* Copyright (c) 2013 Paul B Mahol
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/avassert.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/opt.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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#include "formats.h"
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#include "internal.h"
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#include "video.h"
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enum StereoCode {
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ANAGLYPH_RC_GRAY, // anaglyph red/cyan gray
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ANAGLYPH_RC_HALF, // anaglyph red/cyan half colored
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ANAGLYPH_RC_COLOR, // anaglyph red/cyan colored
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ANAGLYPH_RC_DUBOIS, // anaglyph red/cyan dubois
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ANAGLYPH_GM_GRAY, // anaglyph green/magenta gray
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ANAGLYPH_GM_HALF, // anaglyph green/magenta half colored
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ANAGLYPH_GM_COLOR, // anaglyph green/magenta colored
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ANAGLYPH_GM_DUBOIS, // anaglyph green/magenta dubois
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ANAGLYPH_YB_GRAY, // anaglyph yellow/blue gray
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ANAGLYPH_YB_HALF, // anaglyph yellow/blue half colored
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ANAGLYPH_YB_COLOR, // anaglyph yellow/blue colored
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ANAGLYPH_YB_DUBOIS, // anaglyph yellow/blue dubois
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ANAGLYPH_RB_GRAY, // anaglyph red/blue gray
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ANAGLYPH_RG_GRAY, // anaglyph red/green gray
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MONO_L, // mono output for debugging (left eye only)
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MONO_R, // mono output for debugging (right eye only)
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INTERLEAVE_ROWS_LR, // row-interleave (left eye has top row)
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INTERLEAVE_ROWS_RL, // row-interleave (right eye has top row)
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SIDE_BY_SIDE_LR, // side by side parallel (left eye left, right eye right)
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SIDE_BY_SIDE_RL, // side by side crosseye (right eye left, left eye right)
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SIDE_BY_SIDE_2_LR, // side by side parallel with half width resolution
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SIDE_BY_SIDE_2_RL, // side by side crosseye with half width resolution
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ABOVE_BELOW_LR, // above-below (left eye above, right eye below)
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ABOVE_BELOW_RL, // above-below (right eye above, left eye below)
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ABOVE_BELOW_2_LR, // above-below with half height resolution
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ABOVE_BELOW_2_RL, // above-below with half height resolution
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STEREO_CODE_COUNT // TODO: needs autodetection
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};
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typedef struct StereoComponent {
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enum StereoCode format;
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int width, height;
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int off_left, off_right;
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int row_left, row_right;
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} StereoComponent;
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static const int ana_coeff[][3][6] = {
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[ANAGLYPH_RB_GRAY] =
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{{19595, 38470, 7471, 0, 0, 0},
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{ 0, 0, 0, 0, 0, 0},
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{ 0, 0, 0, 19595, 38470, 7471}},
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[ANAGLYPH_RG_GRAY] =
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{{19595, 38470, 7471, 0, 0, 0},
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{ 0, 0, 0, 19595, 38470, 7471},
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{ 0, 0, 0, 0, 0, 0}},
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[ANAGLYPH_RC_GRAY] =
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{{19595, 38470, 7471, 0, 0, 0},
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{ 0, 0, 0, 19595, 38470, 7471},
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{ 0, 0, 0, 19595, 38470, 7471}},
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[ANAGLYPH_RC_HALF] =
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{{19595, 38470, 7471, 0, 0, 0},
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{ 0, 0, 0, 0, 65536, 0},
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{ 0, 0, 0, 0, 0, 65536}},
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[ANAGLYPH_RC_COLOR] =
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{{65536, 0, 0, 0, 0, 0},
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{ 0, 0, 0, 0, 65536, 0},
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{ 0, 0, 0, 0, 0, 65536}},
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[ANAGLYPH_RC_DUBOIS] =
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{{29891, 32800, 11559, -2849, -5763, -102},
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{-2627, -2479, -1033, 24804, 48080, -1209},
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{ -997, -1350, -358, -4729, -7403, 80373}},
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[ANAGLYPH_GM_GRAY] =
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{{ 0, 0, 0, 19595, 38470, 7471},
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{19595, 38470, 7471, 0, 0, 0},
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{ 0, 0, 0, 19595, 38470, 7471}},
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[ANAGLYPH_GM_HALF] =
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{{ 0, 0, 0, 65536, 0, 0},
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{19595, 38470, 7471, 0, 0, 0},
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{ 0, 0, 0, 0, 0, 65536}},
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[ANAGLYPH_GM_COLOR] =
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{{ 0, 0, 0, 65536, 0, 0},
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{ 0, 65536, 0, 0, 0, 0},
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{ 0, 0, 0, 0, 0, 65536}},
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[ANAGLYPH_GM_DUBOIS] =
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{{-4063,-10354, -2556, 34669, 46203, 1573},
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{18612, 43778, 9372, -1049, -983, -4260},
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{ -983, -1769, 1376, 590, 4915, 61407}},
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[ANAGLYPH_YB_GRAY] =
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{{ 0, 0, 0, 19595, 38470, 7471},
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{ 0, 0, 0, 19595, 38470, 7471},
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{19595, 38470, 7471, 0, 0, 0}},
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[ANAGLYPH_YB_HALF] =
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{{ 0, 0, 0, 65536, 0, 0},
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{ 0, 0, 0, 0, 65536, 0},
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{19595, 38470, 7471, 0, 0, 0}},
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[ANAGLYPH_YB_COLOR] =
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{{ 0, 0, 0, 65536, 0, 0},
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{ 0, 0, 0, 0, 65536, 0},
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{ 0, 0, 65536, 0, 0, 0}},
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[ANAGLYPH_YB_DUBOIS] =
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{{65535,-12650,18451, -987, -7590, -1049},
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{-1604, 56032, 4196, 370, 3826, -1049},
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{-2345,-10676, 1358, 5801, 11416, 56217}},
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};
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typedef struct Stereo3DContext {
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const AVClass *class;
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StereoComponent in, out;
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int width, height;
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int row_step;
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int ana_matrix[3][6];
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} Stereo3DContext;
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#define OFFSET(x) offsetof(Stereo3DContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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static const AVOption stereo3d_options[] = {
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{ "in", "set input format", OFFSET(in.format), AV_OPT_TYPE_INT, {.i64=SIDE_BY_SIDE_LR}, SIDE_BY_SIDE_LR, ABOVE_BELOW_2_RL, FLAGS, "in"},
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{ "ab2l", "above below half height left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_LR}, 0, 0, FLAGS, "in" },
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{ "ab2r", "above below half height right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_RL}, 0, 0, FLAGS, "in" },
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{ "abl", "above below left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_LR}, 0, 0, FLAGS, "in" },
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{ "abr", "above below right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_RL}, 0, 0, FLAGS, "in" },
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{ "sbs2l", "side by side half width left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_LR}, 0, 0, FLAGS, "in" },
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{ "sbs2r", "side by side half width right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_RL}, 0, 0, FLAGS, "in" },
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{ "sbsl", "side by side left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_LR}, 0, 0, FLAGS, "in" },
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{ "sbsr", "side by side right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_RL}, 0, 0, FLAGS, "in" },
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{ "out", "set output format", OFFSET(out.format), AV_OPT_TYPE_INT, {.i64=ANAGLYPH_RC_DUBOIS}, 0, STEREO_CODE_COUNT-1, FLAGS, "out"},
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{ "ab2l", "above below half height left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_LR}, 0, 0, FLAGS, "out" },
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{ "ab2r", "above below half height right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_RL}, 0, 0, FLAGS, "out" },
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{ "abl", "above below left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_LR}, 0, 0, FLAGS, "out" },
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{ "abr", "above below right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_RL}, 0, 0, FLAGS, "out" },
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{ "agmc", "anaglyph green magenta color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_COLOR}, 0, 0, FLAGS, "out" },
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{ "agmd", "anaglyph green magenta dubois", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_DUBOIS}, 0, 0, FLAGS, "out" },
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{ "agmg", "anaglyph green magenta gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_GRAY}, 0, 0, FLAGS, "out" },
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{ "agmh", "anaglyph green magenta half color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_HALF}, 0, 0, FLAGS, "out" },
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{ "arbg", "anaglyph red blue gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RB_GRAY}, 0, 0, FLAGS, "out" },
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{ "arcc", "anaglyph red cyan color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_COLOR}, 0, 0, FLAGS, "out" },
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{ "arcd", "anaglyph red cyan dubois", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_DUBOIS}, 0, 0, FLAGS, "out" },
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{ "arcg", "anaglyph red cyan gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_GRAY}, 0, 0, FLAGS, "out" },
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{ "arch", "anaglyph red cyan half color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_HALF}, 0, 0, FLAGS, "out" },
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{ "argg", "anaglyph red green gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RG_GRAY}, 0, 0, FLAGS, "out" },
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{ "aybc", "anaglyph yellow blue color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_COLOR}, 0, 0, FLAGS, "out" },
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{ "aybd", "anaglyph yellow blue dubois", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_DUBOIS}, 0, 0, FLAGS, "out" },
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{ "aybg", "anaglyph yellow blue gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_GRAY}, 0, 0, FLAGS, "out" },
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{ "aybh", "anaglyph yellow blue half color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_HALF}, 0, 0, FLAGS, "out" },
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{ "irl", "interleave rows left first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_LR}, 0, 0, FLAGS, "out" },
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{ "irr", "interleave rows right first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_RL}, 0, 0, FLAGS, "out" },
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{ "ml", "mono left", 0, AV_OPT_TYPE_CONST, {.i64=MONO_L}, 0, 0, FLAGS, "out" },
|
||||
{ "mr", "mono right", 0, AV_OPT_TYPE_CONST, {.i64=MONO_R}, 0, 0, FLAGS, "out" },
|
||||
{ "sbs2l", "side by side half width left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_LR}, 0, 0, FLAGS, "out" },
|
||||
{ "sbs2r", "side by side half width right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_RL}, 0, 0, FLAGS, "out" },
|
||||
{ "sbsl", "side by side left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_LR}, 0, 0, FLAGS, "out" },
|
||||
{ "sbsr", "side by side right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_RL}, 0, 0, FLAGS, "out" },
|
||||
};
|
||||
|
||||
AVFILTER_DEFINE_CLASS(stereo3d);
|
||||
|
||||
static av_cold int init(AVFilterContext *ctx, const char *args)
|
||||
{
|
||||
Stereo3DContext *s = ctx->priv;
|
||||
static const char *shorthand[] = { "in", "out", NULL };
|
||||
int ret;
|
||||
|
||||
s->class = &stereo3d_class;
|
||||
av_opt_set_defaults(s);
|
||||
|
||||
if ((ret = av_opt_set_from_string(s, args, shorthand, "=", ":")) < 0)
|
||||
return ret;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int query_formats(AVFilterContext *ctx)
|
||||
{
|
||||
static const enum AVPixelFormat pix_fmts[] = {
|
||||
AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
|
||||
};
|
||||
|
||||
ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int config_output(AVFilterLink *outlink)
|
||||
{
|
||||
AVFilterContext *ctx = outlink->src;
|
||||
AVFilterLink *inlink = ctx->inputs[0];
|
||||
Stereo3DContext *s = ctx->priv;
|
||||
AVRational aspect = inlink->sample_aspect_ratio;
|
||||
|
||||
s->in.width =
|
||||
s->width = inlink->w;
|
||||
s->in.height =
|
||||
s->height = inlink->h;
|
||||
s->row_step = 1;
|
||||
s->in.off_left =
|
||||
s->in.off_right =
|
||||
s->in.row_left =
|
||||
s->in.row_right = 0;
|
||||
|
||||
switch (s->in.format) {
|
||||
case SIDE_BY_SIDE_2_LR:
|
||||
aspect.num *= 2;
|
||||
case SIDE_BY_SIDE_LR:
|
||||
s->width = inlink->w / 2;
|
||||
s->in.off_right = s->width * 3;
|
||||
break;
|
||||
case SIDE_BY_SIDE_2_RL:
|
||||
aspect.num *= 2;
|
||||
case SIDE_BY_SIDE_RL:
|
||||
s->width = inlink->w / 2;
|
||||
s->in.off_left = s->width * 3;
|
||||
break;
|
||||
case ABOVE_BELOW_2_LR:
|
||||
aspect.den *= 2;
|
||||
case ABOVE_BELOW_LR:
|
||||
s->in.row_right =
|
||||
s->height = inlink->h / 2;
|
||||
break;
|
||||
case ABOVE_BELOW_2_RL:
|
||||
aspect.den *= 2;
|
||||
case ABOVE_BELOW_RL:
|
||||
s->in.row_left =
|
||||
s->height = inlink->h / 2;
|
||||
break;
|
||||
default:
|
||||
av_log(ctx, AV_LOG_ERROR, "input format %d is not supported\n", s->in.format);
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
|
||||
s->out.width = s->width;
|
||||
s->out.height = s->height;
|
||||
s->out.off_left =
|
||||
s->out.off_right =
|
||||
s->out.row_left =
|
||||
s->out.row_right = 0;
|
||||
|
||||
switch (s->out.format) {
|
||||
case ANAGLYPH_RB_GRAY:
|
||||
case ANAGLYPH_RG_GRAY:
|
||||
case ANAGLYPH_RC_GRAY:
|
||||
case ANAGLYPH_RC_HALF:
|
||||
case ANAGLYPH_RC_COLOR:
|
||||
case ANAGLYPH_RC_DUBOIS:
|
||||
case ANAGLYPH_GM_GRAY:
|
||||
case ANAGLYPH_GM_HALF:
|
||||
case ANAGLYPH_GM_COLOR:
|
||||
case ANAGLYPH_GM_DUBOIS:
|
||||
case ANAGLYPH_YB_GRAY:
|
||||
case ANAGLYPH_YB_HALF:
|
||||
case ANAGLYPH_YB_COLOR:
|
||||
case ANAGLYPH_YB_DUBOIS:
|
||||
memcpy(s->ana_matrix, ana_coeff[s->out.format], sizeof(s->ana_matrix));
|
||||
break;
|
||||
case SIDE_BY_SIDE_2_LR:
|
||||
aspect.num /= 2;
|
||||
case SIDE_BY_SIDE_LR:
|
||||
s->out.width =
|
||||
s->out.off_right = s->width * 3;
|
||||
break;
|
||||
case SIDE_BY_SIDE_2_RL:
|
||||
aspect.num /= 2;
|
||||
case SIDE_BY_SIDE_RL:
|
||||
s->out.width = s->width * 2;
|
||||
s->out.off_left = s->width * 3;
|
||||
break;
|
||||
case ABOVE_BELOW_2_LR:
|
||||
aspect.den /= 2;
|
||||
case ABOVE_BELOW_LR:
|
||||
s->out.height = s->height * 2;
|
||||
s->out.row_right = s->height;
|
||||
break;
|
||||
case ABOVE_BELOW_2_RL:
|
||||
aspect.den /= 2;
|
||||
case ABOVE_BELOW_RL:
|
||||
s->out.height = s->height * 2;
|
||||
s->out.row_left = s->height;
|
||||
break;
|
||||
case INTERLEAVE_ROWS_LR:
|
||||
s->row_step = 2;
|
||||
s->height = s->height / 2;
|
||||
s->out.off_right = s->width * 3;
|
||||
s->in.off_right += s->in.width * 3;
|
||||
break;
|
||||
case INTERLEAVE_ROWS_RL:
|
||||
s->row_step = 2;
|
||||
s->height = s->height / 2;
|
||||
s->out.off_left = s->width * 3;
|
||||
s->in.off_left += s->in.width * 3;
|
||||
break;
|
||||
case MONO_R:
|
||||
s->in.off_left = s->in.off_right;
|
||||
s->in.row_left = s->in.row_right;
|
||||
case MONO_L:
|
||||
break;
|
||||
default:
|
||||
av_log(ctx, AV_LOG_ERROR, "output format is not supported\n");
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
|
||||
outlink->w = s->out.width;
|
||||
outlink->h = s->out.height;
|
||||
outlink->sample_aspect_ratio = aspect;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline uint8_t ana_convert(const int *coeff, uint8_t *left, uint8_t *right)
|
||||
{
|
||||
int sum;
|
||||
|
||||
sum = coeff[0] * left[0] + coeff[3] * right[0]; //red in
|
||||
sum += coeff[1] * left[1] + coeff[4] * right[1]; //green in
|
||||
sum += coeff[2] * left[2] + coeff[5] * right[2]; //blue in
|
||||
|
||||
return av_clip_uint8(sum >> 16);
|
||||
}
|
||||
|
||||
static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref)
|
||||
{
|
||||
AVFilterContext *ctx = inlink->dst;
|
||||
Stereo3DContext *s = ctx->priv;
|
||||
AVFilterLink *outlink = ctx->outputs[0];
|
||||
AVFilterBufferRef *out;
|
||||
int out_off_left, out_off_right;
|
||||
int in_off_left, in_off_right;
|
||||
int ret;
|
||||
|
||||
out = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
|
||||
if (!out) {
|
||||
avfilter_unref_bufferp(&inpicref);
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
|
||||
out->pts = inpicref->pts;
|
||||
out->pos = inpicref->pos;
|
||||
|
||||
in_off_left = s->in.row_left * inpicref->linesize[0] + s->in.off_left;
|
||||
in_off_right = s->in.row_right * inpicref->linesize[0] + s->in.off_right;
|
||||
out_off_left = s->out.row_left * out->linesize[0] + s->out.off_left;
|
||||
out_off_right = s->out.row_right * out->linesize[0] + s->out.off_right;
|
||||
|
||||
switch (s->out.format) {
|
||||
case SIDE_BY_SIDE_LR:
|
||||
case SIDE_BY_SIDE_RL:
|
||||
case SIDE_BY_SIDE_2_LR:
|
||||
case SIDE_BY_SIDE_2_RL:
|
||||
case ABOVE_BELOW_LR:
|
||||
case ABOVE_BELOW_RL:
|
||||
case ABOVE_BELOW_2_LR:
|
||||
case ABOVE_BELOW_2_RL:
|
||||
case INTERLEAVE_ROWS_LR:
|
||||
case INTERLEAVE_ROWS_RL:
|
||||
av_image_copy_plane(out->data[0] + out_off_left,
|
||||
out->linesize[0] * s->row_step,
|
||||
inpicref->data[0] + in_off_left,
|
||||
inpicref->linesize[0] * s->row_step,
|
||||
3 * s->width, s->height);
|
||||
av_image_copy_plane(out->data[0] + out_off_right,
|
||||
out->linesize[0] * s->row_step,
|
||||
inpicref->data[0] + in_off_right,
|
||||
inpicref->linesize[0] * s->row_step,
|
||||
3 * s->width, s->height);
|
||||
break;
|
||||
case MONO_L:
|
||||
case MONO_R:
|
||||
av_image_copy_plane(out->data[0], out->linesize[0],
|
||||
inpicref->data[0] + in_off_left,
|
||||
inpicref->linesize[0],
|
||||
3 * s->width, s->height);
|
||||
break;
|
||||
case ANAGLYPH_RB_GRAY:
|
||||
case ANAGLYPH_RG_GRAY:
|
||||
case ANAGLYPH_RC_GRAY:
|
||||
case ANAGLYPH_RC_HALF:
|
||||
case ANAGLYPH_RC_COLOR:
|
||||
case ANAGLYPH_RC_DUBOIS:
|
||||
case ANAGLYPH_GM_GRAY:
|
||||
case ANAGLYPH_GM_HALF:
|
||||
case ANAGLYPH_GM_COLOR:
|
||||
case ANAGLYPH_GM_DUBOIS:
|
||||
case ANAGLYPH_YB_GRAY:
|
||||
case ANAGLYPH_YB_HALF:
|
||||
case ANAGLYPH_YB_COLOR:
|
||||
case ANAGLYPH_YB_DUBOIS: {
|
||||
int i, x, y, il, ir, o;
|
||||
uint8_t *src = inpicref->data[0];
|
||||
uint8_t *dst = out->data[0];
|
||||
int out_width = s->out.width;
|
||||
int *ana_matrix[3];
|
||||
|
||||
for (i = 0; i < 3; i++)
|
||||
ana_matrix[i] = s->ana_matrix[i];
|
||||
|
||||
for (y = 0; y < s->out.height; y++) {
|
||||
o = out->linesize[0] * y;
|
||||
il = in_off_left + y * inpicref->linesize[0];
|
||||
ir = in_off_right + y * inpicref->linesize[0];
|
||||
for (x = 0; x < out_width; x++, il += 3, ir += 3, o+= 3) {
|
||||
dst[o ] = ana_convert(ana_matrix[0], src + il, src + ir);
|
||||
dst[o + 1] = ana_convert(ana_matrix[1], src + il, src + ir);
|
||||
dst[o + 2] = ana_convert(ana_matrix[2], src + il, src + ir);
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:
|
||||
av_assert0(0);
|
||||
}
|
||||
|
||||
ret = ff_filter_frame(outlink, out);
|
||||
avfilter_unref_bufferp(&inpicref);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_cold void uninit(AVFilterContext *ctx)
|
||||
{
|
||||
Stereo3DContext *s = ctx->priv;
|
||||
|
||||
av_opt_free(s);
|
||||
}
|
||||
|
||||
static const AVFilterPad stereo3d_inputs[] = {
|
||||
{
|
||||
.name = "default",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.get_video_buffer = ff_null_get_video_buffer,
|
||||
.filter_frame = filter_frame,
|
||||
.min_perms = AV_PERM_READ,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
static const AVFilterPad stereo3d_outputs[] = {
|
||||
{
|
||||
.name = "default",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.config_props = config_output,
|
||||
.min_perms = AV_PERM_WRITE,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
AVFilter avfilter_vf_stereo3d = {
|
||||
.name = "stereo3d",
|
||||
.description = NULL_IF_CONFIG_SMALL("Convert video stereoscopic 3D view."),
|
||||
.priv_size = sizeof(Stereo3DContext),
|
||||
.init = init,
|
||||
.uninit = uninit,
|
||||
.query_formats = query_formats,
|
||||
.inputs = stereo3d_inputs,
|
||||
.outputs = stereo3d_outputs,
|
||||
.priv_class = &stereo3d_class,
|
||||
};
|
||||
Reference in New Issue
Block a user