libavfilter/vf_stereo3d.c
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 /*
  * Copyright (c) 2010 Gordon Schmidt <gordon.schmidt <at> s2000.tu-chemnitz.de>
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  * Copyright (c) 2013-2015 Paul B Mahol
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  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License along
  * with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "libavutil/avassert.h"
 #include "libavutil/imgutils.h"
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 #include "libavutil/intreadwrite.h"
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 #include "libavutil/opt.h"
 #include "libavutil/parseutils.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
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 #include "drawutils.h"
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 #include "formats.h"
 #include "internal.h"
 #include "video.h"
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 #include "stereo3d.h"
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 enum StereoCode {
     ANAGLYPH_RC_GRAY,   // anaglyph red/cyan gray
     ANAGLYPH_RC_HALF,   // anaglyph red/cyan half colored
     ANAGLYPH_RC_COLOR,  // anaglyph red/cyan colored
     ANAGLYPH_RC_DUBOIS, // anaglyph red/cyan dubois
     ANAGLYPH_GM_GRAY,   // anaglyph green/magenta gray
     ANAGLYPH_GM_HALF,   // anaglyph green/magenta half colored
     ANAGLYPH_GM_COLOR,  // anaglyph green/magenta colored
     ANAGLYPH_GM_DUBOIS, // anaglyph green/magenta dubois
     ANAGLYPH_YB_GRAY,   // anaglyph yellow/blue gray
     ANAGLYPH_YB_HALF,   // anaglyph yellow/blue half colored
     ANAGLYPH_YB_COLOR,  // anaglyph yellow/blue colored
     ANAGLYPH_YB_DUBOIS, // anaglyph yellow/blue dubois
     ANAGLYPH_RB_GRAY,   // anaglyph red/blue gray
     ANAGLYPH_RG_GRAY,   // anaglyph red/green gray
     MONO_L,             // mono output for debugging (left eye only)
     MONO_R,             // mono output for debugging (right eye only)
     INTERLEAVE_ROWS_LR, // row-interleave (left eye has top row)
     INTERLEAVE_ROWS_RL, // row-interleave (right eye has top row)
     SIDE_BY_SIDE_LR,    // side by side parallel (left eye left, right eye right)
     SIDE_BY_SIDE_RL,    // side by side crosseye (right eye left, left eye right)
     SIDE_BY_SIDE_2_LR,  // side by side parallel with half width resolution
     SIDE_BY_SIDE_2_RL,  // side by side crosseye with half width resolution
     ABOVE_BELOW_LR,     // above-below (left eye above, right eye below)
     ABOVE_BELOW_RL,     // above-below (right eye above, left eye below)
     ABOVE_BELOW_2_LR,   // above-below with half height resolution
     ABOVE_BELOW_2_RL,   // above-below with half height resolution
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     ALTERNATING_LR,     // alternating frames (left eye first, right eye second)
     ALTERNATING_RL,     // alternating frames (right eye first, left eye second)
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     CHECKERBOARD_LR,    // checkerboard pattern (left eye first, right eye second)
     CHECKERBOARD_RL,    // checkerboard pattern (right eye first, left eye second)
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     INTERLEAVE_COLS_LR, // column-interleave (left eye first, right eye second)
     INTERLEAVE_COLS_RL, // column-interleave (right eye first, left eye second)
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     HDMI,               // HDMI frame pack (left eye first, right eye second)
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     STEREO_CODE_COUNT   // TODO: needs autodetection
 };
 
 typedef struct StereoComponent {
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     int format;                 ///< StereoCode
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     int width, height;
     int off_left, off_right;
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     int off_lstep, off_rstep;
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     int row_left, row_right;
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     int row_step;
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 } StereoComponent;
 
 static const int ana_coeff[][3][6] = {
   [ANAGLYPH_RB_GRAY]   =
     {{19595, 38470,  7471,     0,     0,     0},
      {    0,     0,     0,     0,     0,     0},
      {    0,     0,     0, 19595, 38470,  7471}},
   [ANAGLYPH_RG_GRAY]   =
     {{19595, 38470,  7471,     0,     0,     0},
      {    0,     0,     0, 19595, 38470,  7471},
      {    0,     0,     0,     0,     0,     0}},
   [ANAGLYPH_RC_GRAY]   =
     {{19595, 38470,  7471,     0,     0,     0},
      {    0,     0,     0, 19595, 38470,  7471},
      {    0,     0,     0, 19595, 38470,  7471}},
   [ANAGLYPH_RC_HALF]   =
     {{19595, 38470,  7471,     0,     0,     0},
      {    0,     0,     0,     0, 65536,     0},
      {    0,     0,     0,     0,     0, 65536}},
   [ANAGLYPH_RC_COLOR]  =
     {{65536,     0,     0,     0,     0,     0},
      {    0,     0,     0,     0, 65536,     0},
      {    0,     0,     0,     0,     0, 65536}},
   [ANAGLYPH_RC_DUBOIS] =
     {{29891, 32800, 11559, -2849, -5763,  -102},
      {-2627, -2479, -1033, 24804, 48080, -1209},
      { -997, -1350,  -358, -4729, -7403, 80373}},
   [ANAGLYPH_GM_GRAY]   =
     {{    0,     0,     0, 19595, 38470,  7471},
      {19595, 38470,  7471,     0,     0,     0},
      {    0,     0,     0, 19595, 38470,  7471}},
   [ANAGLYPH_GM_HALF]   =
     {{    0,     0,     0, 65536,     0,     0},
      {19595, 38470,  7471,     0,     0,     0},
      {    0,     0,     0,     0,     0, 65536}},
   [ANAGLYPH_GM_COLOR]  =
     {{    0,     0,     0, 65536,     0,     0},
      {    0, 65536,     0,     0,     0,     0},
      {    0,     0,     0,     0,     0, 65536}},
   [ANAGLYPH_GM_DUBOIS]  =
     {{-4063,-10354, -2556, 34669, 46203,  1573},
      {18612, 43778,  9372, -1049,  -983, -4260},
      { -983, -1769,  1376,   590,  4915, 61407}},
   [ANAGLYPH_YB_GRAY]   =
     {{    0,     0,     0, 19595, 38470,  7471},
      {    0,     0,     0, 19595, 38470,  7471},
      {19595, 38470,  7471,     0,     0,     0}},
   [ANAGLYPH_YB_HALF]   =
     {{    0,     0,     0, 65536,     0,     0},
      {    0,     0,     0,     0, 65536,     0},
      {19595, 38470,  7471,     0,     0,     0}},
   [ANAGLYPH_YB_COLOR]  =
     {{    0,     0,     0, 65536,     0,     0},
      {    0,     0,     0,     0, 65536,     0},
      {    0,     0, 65536,     0,     0,     0}},
   [ANAGLYPH_YB_DUBOIS] =
     {{65535,-12650,18451,   -987, -7590, -1049},
      {-1604, 56032, 4196,    370,  3826, -1049},
      {-2345,-10676, 1358,   5801, 11416, 56217}},
 };
 
 typedef struct Stereo3DContext {
     const AVClass *class;
     StereoComponent in, out;
     int width, height;
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     const int *ana_matrix[3];
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     int nb_planes;
     int linesize[4];
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     int pheight[4];
     int hsub, vsub;
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     int pixstep[4];
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     AVFrame *prev;
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     int blanks;
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     int in_off_left[4], in_off_right[4];
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     AVRational aspect;
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     Stereo3DDSPContext dsp;
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 } Stereo3DContext;
 
 #define OFFSET(x) offsetof(Stereo3DContext, x)
 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 
 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}, INTERLEAVE_ROWS_LR, STEREO_CODE_COUNT-1, FLAGS, "in"},
     { "ab2l",  "above below half height left first",  0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_LR},   0, 0, FLAGS, "in" },
     { "ab2r",  "above below half height right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_RL},   0, 0, FLAGS, "in" },
     { "abl",   "above below left first",              0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_LR},     0, 0, FLAGS, "in" },
     { "abr",   "above below right first",             0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_RL},     0, 0, FLAGS, "in" },
     { "al",    "alternating frames left first",       0, AV_OPT_TYPE_CONST, {.i64=ALTERNATING_LR},     0, 0, FLAGS, "in" },
     { "ar",    "alternating frames right first",      0, AV_OPT_TYPE_CONST, {.i64=ALTERNATING_RL},     0, 0, FLAGS, "in" },
     { "sbs2l", "side by side half width left first",  0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_LR},  0, 0, FLAGS, "in" },
     { "sbs2r", "side by side half width right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_RL},  0, 0, FLAGS, "in" },
     { "sbsl",  "side by side left first",             0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_LR},    0, 0, FLAGS, "in" },
     { "sbsr",  "side by side right first",            0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_RL},    0, 0, FLAGS, "in" },
     { "irl",   "interleave rows left first",          0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_LR}, 0, 0, FLAGS, "in" },
     { "irr",   "interleave rows right first",         0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_RL}, 0, 0, FLAGS, "in" },
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     { "icl",   "interleave columns left first",       0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_COLS_LR}, 0, 0, FLAGS, "in" },
     { "icr",   "interleave columns right first",      0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_COLS_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" },
     { "ab2r",  "above below half height right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_RL},   0, 0, FLAGS, "out" },
     { "abl",   "above below left first",              0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_LR},     0, 0, FLAGS, "out" },
     { "abr",   "above below right first",             0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_RL},     0, 0, FLAGS, "out" },
     { "agmc",  "anaglyph green magenta color",        0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_COLOR},  0, 0, FLAGS, "out" },
     { "agmd",  "anaglyph green magenta dubois",       0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_DUBOIS}, 0, 0, FLAGS, "out" },
     { "agmg",  "anaglyph green magenta gray",         0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_GRAY},   0, 0, FLAGS, "out" },
     { "agmh",  "anaglyph green magenta half color",   0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_HALF},   0, 0, FLAGS, "out" },
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     { "al",    "alternating frames left first",       0, AV_OPT_TYPE_CONST, {.i64=ALTERNATING_LR},     0, 0, FLAGS, "out" },
     { "ar",    "alternating frames right first",      0, AV_OPT_TYPE_CONST, {.i64=ALTERNATING_RL},     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" },
     { "arcc",  "anaglyph red cyan color",             0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_COLOR},  0, 0, FLAGS, "out" },
     { "arcd",  "anaglyph red cyan dubois",            0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_DUBOIS}, 0, 0, FLAGS, "out" },
     { "arcg",  "anaglyph red cyan gray",              0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_GRAY},   0, 0, FLAGS, "out" },
     { "arch",  "anaglyph red cyan half color",        0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_HALF},   0, 0, FLAGS, "out" },
     { "argg",  "anaglyph red green gray",             0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RG_GRAY},   0, 0, FLAGS, "out" },
     { "aybc",  "anaglyph yellow blue color",          0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_COLOR},  0, 0, FLAGS, "out" },
     { "aybd",  "anaglyph yellow blue dubois",         0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_DUBOIS}, 0, 0, FLAGS, "out" },
     { "aybg",  "anaglyph yellow blue gray",           0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_GRAY},   0, 0, FLAGS, "out" },
     { "aybh",  "anaglyph yellow blue half color",     0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_HALF},   0, 0, FLAGS, "out" },
     { "irl",   "interleave rows left first",          0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_LR}, 0, 0, FLAGS, "out" },
     { "irr",   "interleave rows right first",         0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_RL}, 0, 0, FLAGS, "out" },
     { "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" },
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     { "chl",   "checkerboard left first",             0, AV_OPT_TYPE_CONST, {.i64=CHECKERBOARD_LR},    0, 0, FLAGS, "out" },
     { "chr",   "checkerboard right first",            0, AV_OPT_TYPE_CONST, {.i64=CHECKERBOARD_RL},    0, 0, FLAGS, "out" },
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     { "icl",   "interleave columns left first",       0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_COLS_LR}, 0, 0, FLAGS, "out" },
     { "icr",   "interleave columns right first",      0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_COLS_RL}, 0, 0, FLAGS, "out" },
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     { "hdmi",  "HDMI frame pack",                     0, AV_OPT_TYPE_CONST, {.i64=HDMI},               0, 0, FLAGS, "out" },
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     { NULL }
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 };
 
 AVFILTER_DEFINE_CLASS(stereo3d);
 
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 static const enum AVPixelFormat anaglyph_pix_fmts[] = {
     AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
     AV_PIX_FMT_NONE
 };
 
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 static const enum AVPixelFormat other_pix_fmts[] = {
     AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
     AV_PIX_FMT_RGB48BE, AV_PIX_FMT_BGR48BE,
     AV_PIX_FMT_RGB48LE, AV_PIX_FMT_BGR48LE,
     AV_PIX_FMT_RGBA64BE, AV_PIX_FMT_BGRA64BE,
     AV_PIX_FMT_RGBA64LE, AV_PIX_FMT_BGRA64LE,
     AV_PIX_FMT_RGBA,  AV_PIX_FMT_BGRA,
     AV_PIX_FMT_ARGB,  AV_PIX_FMT_ABGR,
     AV_PIX_FMT_RGB0,  AV_PIX_FMT_BGR0,
     AV_PIX_FMT_0RGB,  AV_PIX_FMT_0BGR,
     AV_PIX_FMT_GBRP,
     AV_PIX_FMT_GBRP9BE,  AV_PIX_FMT_GBRP9LE,
     AV_PIX_FMT_GBRP10BE, AV_PIX_FMT_GBRP10LE,
     AV_PIX_FMT_GBRP12BE, AV_PIX_FMT_GBRP12LE,
     AV_PIX_FMT_GBRP14BE, AV_PIX_FMT_GBRP14LE,
     AV_PIX_FMT_GBRP16BE, AV_PIX_FMT_GBRP16LE,
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     AV_PIX_FMT_YUV410P,
     AV_PIX_FMT_YUV411P,
     AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P,
     AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P,
     AV_PIX_FMT_YUV440P,
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     AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P,
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     AV_PIX_FMT_YUVJ411P,
     AV_PIX_FMT_YUVJ420P,
     AV_PIX_FMT_YUVJ422P,
     AV_PIX_FMT_YUVJ440P,
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     AV_PIX_FMT_YUVJ444P,
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     AV_PIX_FMT_YUV420P9LE,  AV_PIX_FMT_YUVA420P9LE,
     AV_PIX_FMT_YUV420P9BE,  AV_PIX_FMT_YUVA420P9BE,
     AV_PIX_FMT_YUV422P9LE,  AV_PIX_FMT_YUVA422P9LE,
     AV_PIX_FMT_YUV422P9BE,  AV_PIX_FMT_YUVA422P9BE,
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     AV_PIX_FMT_YUV444P9LE,  AV_PIX_FMT_YUVA444P9LE,
     AV_PIX_FMT_YUV444P9BE,  AV_PIX_FMT_YUVA444P9BE,
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     AV_PIX_FMT_YUV420P10LE, AV_PIX_FMT_YUVA420P10LE,
     AV_PIX_FMT_YUV420P10BE, AV_PIX_FMT_YUVA420P10BE,
     AV_PIX_FMT_YUV422P10LE, AV_PIX_FMT_YUVA422P10LE,
     AV_PIX_FMT_YUV422P10BE, AV_PIX_FMT_YUVA422P10BE,
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     AV_PIX_FMT_YUV444P10LE, AV_PIX_FMT_YUVA444P10LE,
     AV_PIX_FMT_YUV444P10BE, AV_PIX_FMT_YUVA444P10BE,
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     AV_PIX_FMT_YUV420P12BE,  AV_PIX_FMT_YUV420P12LE,
     AV_PIX_FMT_YUV422P12BE,  AV_PIX_FMT_YUV422P12LE,
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     AV_PIX_FMT_YUV444P12BE,  AV_PIX_FMT_YUV444P12LE,
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     AV_PIX_FMT_YUV420P14BE,  AV_PIX_FMT_YUV420P14LE,
     AV_PIX_FMT_YUV422P14BE,  AV_PIX_FMT_YUV422P14LE,
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     AV_PIX_FMT_YUV444P14BE,  AV_PIX_FMT_YUV444P14LE,
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     AV_PIX_FMT_YUV420P16LE, AV_PIX_FMT_YUVA420P16LE,
     AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_YUVA420P16BE,
     AV_PIX_FMT_YUV422P16LE, AV_PIX_FMT_YUVA422P16LE,
     AV_PIX_FMT_YUV422P16BE, AV_PIX_FMT_YUVA422P16BE,
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     AV_PIX_FMT_YUV444P16LE, AV_PIX_FMT_YUVA444P16LE,
     AV_PIX_FMT_YUV444P16BE, AV_PIX_FMT_YUVA444P16BE,
     AV_PIX_FMT_NONE
 };
 
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 static int query_formats(AVFilterContext *ctx)
 {
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     Stereo3DContext *s = ctx->priv;
     const enum AVPixelFormat *pix_fmts;
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     AVFilterFormats *fmts_list;
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     switch (s->out.format) {
     case ANAGLYPH_GM_COLOR:
     case ANAGLYPH_GM_DUBOIS:
     case ANAGLYPH_GM_GRAY:
     case ANAGLYPH_GM_HALF:
     case ANAGLYPH_RB_GRAY:
     case ANAGLYPH_RC_COLOR:
     case ANAGLYPH_RC_DUBOIS:
     case ANAGLYPH_RC_GRAY:
     case ANAGLYPH_RC_HALF:
     case ANAGLYPH_RG_GRAY:
     case ANAGLYPH_YB_COLOR:
     case ANAGLYPH_YB_DUBOIS:
     case ANAGLYPH_YB_GRAY:
     case ANAGLYPH_YB_HALF:
         pix_fmts = anaglyph_pix_fmts;
         break;
     default:
         pix_fmts = other_pix_fmts;
     }
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     fmts_list = ff_make_format_list(pix_fmts);
     if (!fmts_list)
         return AVERROR(ENOMEM);
     return ff_set_common_formats(ctx, fmts_list);
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 }
 
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 static inline uint8_t ana_convert(const int *coeff, const uint8_t *left, const 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);
 }
 
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 static void anaglyph_ic(uint8_t *dst, uint8_t *lsrc, uint8_t *rsrc,
                         ptrdiff_t dst_linesize, ptrdiff_t l_linesize, ptrdiff_t r_linesize,
                         int width, int height,
                         const int *ana_matrix_r, const int *ana_matrix_g, const int *ana_matrix_b)
 {
     int x, y, o;
 
     for (y = 0; y < height; y++) {
         for (o = 0, x = 0; x < width; x++, o+= 3) {
             dst[o    ] = ana_convert(ana_matrix_r, lsrc + o * 2, rsrc + o * 2);
             dst[o + 1] = ana_convert(ana_matrix_g, lsrc + o * 2, rsrc + o * 2);
             dst[o + 2] = ana_convert(ana_matrix_b, lsrc + o * 2, rsrc + o * 2);
         }
 
         dst  += dst_linesize;
         lsrc += l_linesize;
         rsrc += r_linesize;
     }
 }
 
ac74e857
 static void anaglyph(uint8_t *dst, uint8_t *lsrc, uint8_t *rsrc,
                      ptrdiff_t dst_linesize, ptrdiff_t l_linesize, ptrdiff_t r_linesize,
                      int width, int height,
                      const int *ana_matrix_r, const int *ana_matrix_g, const int *ana_matrix_b)
 {
     int x, y, o;
 
     for (y = 0; y < height; y++) {
         for (o = 0, x = 0; x < width; x++, o+= 3) {
             dst[o    ] = ana_convert(ana_matrix_r, lsrc + o, rsrc + o);
             dst[o + 1] = ana_convert(ana_matrix_g, lsrc + o, rsrc + o);
             dst[o + 2] = ana_convert(ana_matrix_b, lsrc + o, rsrc + o);
         }
 
         dst  += dst_linesize;
         lsrc += l_linesize;
         rsrc += r_linesize;
     }
 }
 
3f35f36a
 static int config_output(AVFilterLink *outlink)
 {
     AVFilterContext *ctx = outlink->src;
     AVFilterLink *inlink = ctx->inputs[0];
     Stereo3DContext *s = ctx->priv;
2bdd4349
     AVRational fps = inlink->frame_rate;
     AVRational tb = inlink->time_base;
a56fd051
     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format);
     int ret;
b4b02477
     s->aspect = inlink->sample_aspect_ratio;
3f35f36a
 
71658818
     switch (s->in.format) {
ebe1ca01
     case INTERLEAVE_COLS_LR:
     case INTERLEAVE_COLS_RL:
71658818
     case SIDE_BY_SIDE_2_LR:
     case SIDE_BY_SIDE_LR:
     case SIDE_BY_SIDE_2_RL:
     case SIDE_BY_SIDE_RL:
         if (inlink->w & 1) {
             av_log(ctx, AV_LOG_ERROR, "width must be even\n");
             return AVERROR_INVALIDDATA;
         }
         break;
4b2bafbd
     case INTERLEAVE_ROWS_LR:
     case INTERLEAVE_ROWS_RL:
71658818
     case ABOVE_BELOW_2_LR:
     case ABOVE_BELOW_LR:
     case ABOVE_BELOW_2_RL:
     case ABOVE_BELOW_RL:
         if (inlink->h & 1) {
             av_log(ctx, AV_LOG_ERROR, "height must be even\n");
             return AVERROR_INVALIDDATA;
         }
         break;
     }
 
3f35f36a
     s->in.width     =
     s->width        = inlink->w;
     s->in.height    =
     s->height       = inlink->h;
1de7dcb4
     s->in.off_lstep =
     s->in.off_rstep =
3f35f36a
     s->in.off_left  =
     s->in.off_right =
     s->in.row_left  =
     s->in.row_right = 0;
4b2bafbd
     s->in.row_step  = 1;
3f35f36a
 
     switch (s->in.format) {
     case SIDE_BY_SIDE_2_LR:
b4b02477
         s->aspect.num  *= 2;
3f35f36a
     case SIDE_BY_SIDE_LR:
         s->width        = inlink->w / 2;
a56fd051
         s->in.off_right = s->width;
3f35f36a
         break;
     case SIDE_BY_SIDE_2_RL:
b4b02477
         s->aspect.num  *= 2;
3f35f36a
     case SIDE_BY_SIDE_RL:
         s->width        = inlink->w / 2;
a56fd051
         s->in.off_left  = s->width;
3f35f36a
         break;
     case ABOVE_BELOW_2_LR:
b4b02477
         s->aspect.den  *= 2;
3f35f36a
     case ABOVE_BELOW_LR:
         s->in.row_right =
         s->height       = inlink->h / 2;
         break;
     case ABOVE_BELOW_2_RL:
b4b02477
         s->aspect.den  *= 2;
3f35f36a
     case ABOVE_BELOW_RL:
         s->in.row_left  =
         s->height       = inlink->h / 2;
         break;
2bdd4349
     case ALTERNATING_RL:
     case ALTERNATING_LR:
         fps.den        *= 2;
         tb.num         *= 2;
         break;
ebe1ca01
     case INTERLEAVE_COLS_RL:
     case INTERLEAVE_COLS_LR:
         s->width        = inlink->w / 2;
         break;
4b2bafbd
     case INTERLEAVE_ROWS_LR:
     case INTERLEAVE_ROWS_RL:
         s->in.row_step  = 2;
         if (s->in.format == INTERLEAVE_ROWS_RL)
             s->in.off_lstep = 1;
         else
             s->in.off_rstep = 1;
0c511eb2
         if (s->out.format != CHECKERBOARD_LR &&
4b2bafbd
             s->out.format != CHECKERBOARD_RL)
             s->height   = inlink->h / 2;
         break;
3f35f36a
     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;
1de7dcb4
     s->out.off_lstep =
     s->out.off_rstep =
3f35f36a
     s->out.off_left  =
     s->out.off_right =
     s->out.row_left  =
     s->out.row_right = 0;
4b2bafbd
     s->out.row_step  = 1;
3f35f36a
 
     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:
c74d5929
     case ANAGLYPH_YB_DUBOIS: {
         uint8_t rgba_map[4];
 
         ff_fill_rgba_map(rgba_map, outlink->format);
         s->ana_matrix[rgba_map[0]] = &ana_coeff[s->out.format][0][0];
         s->ana_matrix[rgba_map[1]] = &ana_coeff[s->out.format][1][0];
         s->ana_matrix[rgba_map[2]] = &ana_coeff[s->out.format][2][0];
3f35f36a
         break;
c74d5929
     }
3f35f36a
     case SIDE_BY_SIDE_2_LR:
b4b02477
         s->aspect.den   *= 2;
3f35f36a
     case SIDE_BY_SIDE_LR:
b7252025
         s->out.width     = s->width * 2;
a56fd051
         s->out.off_right = s->width;
3f35f36a
         break;
     case SIDE_BY_SIDE_2_RL:
b4b02477
         s->aspect.den   *= 2;
3f35f36a
     case SIDE_BY_SIDE_RL:
         s->out.width     = s->width * 2;
a56fd051
         s->out.off_left  = s->width;
3f35f36a
         break;
     case ABOVE_BELOW_2_LR:
b4b02477
         s->aspect.num   *= 2;
3f35f36a
     case ABOVE_BELOW_LR:
         s->out.height    = s->height * 2;
         s->out.row_right = s->height;
         break;
8bd13eb8
     case HDMI:
eeaf19ce
         if (s->height != 720 && s->height != 1080) {
             av_log(ctx, AV_LOG_ERROR, "Only 720 and 1080 height supported\n");
             return AVERROR(EINVAL);
         }
 
         s->blanks = s->height / 24;
8bd13eb8
         s->out.height    = s->height * 2 + s->blanks;
         s->out.row_right = s->height + s->blanks;
         break;
3f35f36a
     case ABOVE_BELOW_2_RL:
b4b02477
         s->aspect.num   *= 2;
3f35f36a
     case ABOVE_BELOW_RL:
         s->out.height    = s->height * 2;
         s->out.row_left  = s->height;
         break;
     case INTERLEAVE_ROWS_LR:
0c511eb2
         s->in.row_step   = 1 + (s->in.format == INTERLEAVE_ROWS_RL);
4b2bafbd
         s->out.row_step  = 2;
0c511eb2
         s->out.height    = s->height * 2;
4b2bafbd
         s->out.off_rstep = 1;
3f35f36a
         break;
     case INTERLEAVE_ROWS_RL:
0c511eb2
         s->in.row_step   = 1 + (s->in.format == INTERLEAVE_ROWS_LR);
4b2bafbd
         s->out.row_step  = 2;
0c511eb2
         s->out.height    = s->height * 2;
4b2bafbd
         s->out.off_lstep = 1;
3f35f36a
         break;
     case MONO_R:
ebe1ca01
         if (s->in.format != INTERLEAVE_COLS_LR) {
             s->in.off_left = s->in.off_right;
             s->in.row_left = s->in.row_right;
         }
4b2bafbd
         if (s->in.format == INTERLEAVE_ROWS_LR)
             FFSWAP(int, s->in.off_lstep, s->in.off_rstep);
         break;
3f35f36a
     case MONO_L:
4b2bafbd
         if (s->in.format == INTERLEAVE_ROWS_RL)
             FFSWAP(int, s->in.off_lstep, s->in.off_rstep);
3f35f36a
         break;
2bdd4349
     case ALTERNATING_RL:
     case ALTERNATING_LR:
         fps.num         *= 2;
         tb.den          *= 2;
         break;
09812e12
     case CHECKERBOARD_LR:
     case CHECKERBOARD_RL:
         s->out.width     = s->width * 2;
         break;
32dd9b2c
     case INTERLEAVE_COLS_LR:
     case INTERLEAVE_COLS_RL:
         s->out.width     = s->width * 2;
         break;
3f35f36a
     default:
2bdd4349
         av_log(ctx, AV_LOG_ERROR, "output format %d is not supported\n", s->out.format);
3f35f36a
         return AVERROR(EINVAL);
     }
 
ebe1ca01
     if (s->in.format == INTERLEAVE_COLS_LR || s->in.format == INTERLEAVE_COLS_RL) {
         if ((s->in.format & 1) != (s->out.format & 1)) {
             FFSWAP(int, s->in.row_left,   s->in.row_right);
             FFSWAP(int, s->in.off_lstep,  s->in.off_rstep);
             FFSWAP(int, s->in.off_left,   s->in.off_right);
             FFSWAP(int, s->out.row_left,  s->out.row_right);
             FFSWAP(int, s->out.off_lstep, s->out.off_rstep);
             FFSWAP(int, s->out.off_left,  s->out.off_right);
         }
     }
 
3f35f36a
     outlink->w = s->out.width;
     outlink->h = s->out.height;
2bdd4349
     outlink->frame_rate = fps;
     outlink->time_base = tb;
b4b02477
     outlink->sample_aspect_ratio = s->aspect;
3f35f36a
 
a56fd051
     if ((ret = av_image_fill_linesizes(s->linesize, outlink->format, s->width)) < 0)
         return ret;
     s->nb_planes = av_pix_fmt_count_planes(outlink->format);
     av_image_fill_max_pixsteps(s->pixstep, NULL, desc);
21f94684
     s->pheight[1] = s->pheight[2] = AV_CEIL_RSHIFT(s->height, desc->log2_chroma_h);
85a22099
     s->pheight[0] = s->pheight[3] = s->height;
     s->hsub = desc->log2_chroma_w;
     s->vsub = desc->log2_chroma_h;
a56fd051
 
ac74e857
     s->dsp.anaglyph = anaglyph;
     if (ARCH_X86)
         ff_stereo3d_init_x86(&s->dsp);
3f35f36a
 
ac74e857
     return 0;
e306e436
 }
 
7b07e72a
 typedef struct ThreadData {
     AVFrame *ileft, *iright;
     AVFrame *out;
 } ThreadData;
 
 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 {
     Stereo3DContext *s = ctx->priv;
     ThreadData *td = arg;
     AVFrame *ileft = td->ileft;
     AVFrame *iright = td->iright;
     AVFrame *out = td->out;
     int height = s->out.height;
     int start = (height *  jobnr   ) / nb_jobs;
     int end   = (height * (jobnr+1)) / nb_jobs;
     const int **ana_matrix = s->ana_matrix;
e306e436
 
ac74e857
     s->dsp.anaglyph(out->data[0] + out->linesize[0] * start,
e306e436
              ileft ->data[0] + s->in_off_left [0]  + ileft->linesize[0] * start * s->in.row_step,
              iright->data[0] + s->in_off_right[0] + iright->linesize[0] * start * s->in.row_step,
              out->linesize[0],
              ileft->linesize[0] * s->in.row_step,
              iright->linesize[0] * s->in.row_step,
              s->out.width, end - start,
              ana_matrix[0], ana_matrix[1], ana_matrix[2]);
7b07e72a
 
     return 0;
 }
 
ebe1ca01
 static void interleave_cols_to_any(Stereo3DContext *s, int *out_off, int p, AVFrame *in, AVFrame *out, int d)
 {
     int y, x;
 
     for (y = 0; y < s->pheight[p]; y++) {
         const uint8_t *src = (const uint8_t*)in->data[p] + y * in->linesize[p] + d * s->pixstep[p];
         uint8_t *dst = out->data[p] + out_off[p] + y * out->linesize[p] * s->out.row_step;
 
         switch (s->pixstep[p]) {
         case 1:
             for (x = 0; x < s->linesize[p]; x++)
                 dst[x] = src[x * 2];
             break;
         case 2:
             for (x = 0; x < s->linesize[p]; x+=2)
                 AV_WN16(&dst[x], AV_RN16(&src[x * 2]));
             break;
         case 3:
             for (x = 0; x < s->linesize[p]; x+=3)
                 AV_WB24(&dst[x], AV_RB24(&src[x * 2]));
             break;
         case 4:
             for (x = 0; x < s->linesize[p]; x+=4)
                 AV_WN32(&dst[x], AV_RN32(&src[x * 2]));
             break;
         case 6:
             for (x = 0; x < s->linesize[p]; x+=6)
                 AV_WB48(&dst[x], AV_RB48(&src[x * 2]));
             break;
         case 8:
             for (x = 0; x < s->linesize[p]; x+=8)
                 AV_WN64(&dst[x], AV_RN64(&src[x * 2]));
             break;
         }
     }
 }
 
a05a44e2
 static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
3f35f36a
 {
     AVFilterContext *ctx  = inlink->dst;
     Stereo3DContext *s = ctx->priv;
     AVFilterLink *outlink = ctx->outputs[0];
2bdd4349
     AVFrame *out, *oleft, *oright, *ileft, *iright;
a56fd051
     int out_off_left[4], out_off_right[4];
10b16aee
     int i, ret;
3f35f36a
 
4b2bafbd
     if (s->in.format == s->out.format)
         return ff_filter_frame(outlink, inpicref);
 
10b16aee
     switch (s->out.format) {
     case ALTERNATING_LR:
     case ALTERNATING_RL:
         if (!s->prev) {
             s->prev = inpicref;
             return 0;
         }
         break;
     };
 
2bdd4349
     switch (s->in.format) {
     case ALTERNATING_LR:
     case ALTERNATING_RL:
         if (!s->prev) {
             s->prev = inpicref;
             return 0;
         }
         ileft  = s->prev;
         iright = inpicref;
         if (s->in.format == ALTERNATING_RL)
             FFSWAP(AVFrame *, ileft, iright);
         break;
     default:
         ileft = iright = inpicref;
     };
 
c54632d3
     if ((s->out.format == ALTERNATING_LR ||
          s->out.format == ALTERNATING_RL) &&
         (s->in.format == SIDE_BY_SIDE_LR ||
          s->in.format == SIDE_BY_SIDE_RL ||
          s->in.format == SIDE_BY_SIDE_2_LR ||
          s->in.format == SIDE_BY_SIDE_2_RL ||
          s->in.format == ABOVE_BELOW_LR ||
          s->in.format == ABOVE_BELOW_RL ||
          s->in.format == ABOVE_BELOW_2_LR ||
a2a217b3
          s->in.format == ABOVE_BELOW_2_RL ||
          s->in.format == INTERLEAVE_ROWS_LR ||
          s->in.format == INTERLEAVE_ROWS_RL)) {
10b16aee
         oright = av_frame_clone(s->prev);
         oleft  = av_frame_clone(s->prev);
c54632d3
         if (!oright || !oleft) {
             av_frame_free(&oright);
2bdd4349
             av_frame_free(&oleft);
             av_frame_free(&s->prev);
             av_frame_free(&inpicref);
             return AVERROR(ENOMEM);
         }
c54632d3
     } else if ((s->out.format == MONO_L ||
                 s->out.format == MONO_R) &&
         (s->in.format == SIDE_BY_SIDE_LR ||
          s->in.format == SIDE_BY_SIDE_RL ||
          s->in.format == SIDE_BY_SIDE_2_LR ||
          s->in.format == SIDE_BY_SIDE_2_RL ||
          s->in.format == ABOVE_BELOW_LR ||
          s->in.format == ABOVE_BELOW_RL ||
          s->in.format == ABOVE_BELOW_2_LR ||
620b4757
          s->in.format == ABOVE_BELOW_2_RL ||
          s->in.format == INTERLEAVE_ROWS_LR ||
          s->in.format == INTERLEAVE_ROWS_RL)) {
c54632d3
         out = oleft = oright = av_frame_clone(inpicref);
         if (!out) {
             av_frame_free(&s->prev);
             av_frame_free(&inpicref);
             return AVERROR(ENOMEM);
         }
10b16aee
     } else if ((s->out.format == MONO_L && s->in.format == ALTERNATING_LR) ||
                (s->out.format == MONO_R && s->in.format == ALTERNATING_RL)) {
         s->prev->pts /= 2;
         ret = ff_filter_frame(outlink, s->prev);
         av_frame_free(&inpicref);
         s->prev = NULL;
         return ret;
     } else if ((s->out.format == MONO_L && s->in.format == ALTERNATING_RL) ||
                (s->out.format == MONO_R && s->in.format == ALTERNATING_LR)) {
         av_frame_free(&s->prev);
         inpicref->pts /= 2;
         return ff_filter_frame(outlink, inpicref);
     } else if ((s->out.format == ALTERNATING_LR && s->in.format == ALTERNATING_RL) ||
                (s->out.format == ALTERNATING_RL && s->in.format == ALTERNATING_LR)) {
         FFSWAP(int64_t, s->prev->pts, inpicref->pts);
         ff_filter_frame(outlink, inpicref);
         ret = ff_filter_frame(outlink, s->prev);
         s->prev = NULL;
         return ret;
c54632d3
     } else {
         out = oleft = oright = ff_get_video_buffer(outlink, outlink->w, outlink->h);
         if (!out) {
             av_frame_free(&s->prev);
             av_frame_free(&inpicref);
             return AVERROR(ENOMEM);
         }
         av_frame_copy_props(out, inpicref);
 
         if (s->out.format == ALTERNATING_LR ||
             s->out.format == ALTERNATING_RL) {
             oright = ff_get_video_buffer(outlink, outlink->w, outlink->h);
             if (!oright) {
                 av_frame_free(&oleft);
                 av_frame_free(&s->prev);
                 av_frame_free(&inpicref);
                 return AVERROR(ENOMEM);
             }
10b16aee
             av_frame_copy_props(oright, s->prev);
c54632d3
         }
2bdd4349
     }
 
a56fd051
     for (i = 0; i < 4; i++) {
85a22099
         int hsub = i == 1 || i == 2 ? s->hsub : 0;
         int vsub = i == 1 || i == 2 ? s->vsub : 0;
21f94684
         s->in_off_left[i]   = (AV_CEIL_RSHIFT(s->in.row_left,   vsub) + s->in.off_lstep)  * ileft->linesize[i]  + AV_CEIL_RSHIFT(s->in.off_left   * s->pixstep[i], hsub);
         s->in_off_right[i]  = (AV_CEIL_RSHIFT(s->in.row_right,  vsub) + s->in.off_rstep)  * iright->linesize[i] + AV_CEIL_RSHIFT(s->in.off_right  * s->pixstep[i], hsub);
         out_off_left[i]  = (AV_CEIL_RSHIFT(s->out.row_left,  vsub) + s->out.off_lstep) * oleft->linesize[i]  + AV_CEIL_RSHIFT(s->out.off_left  * s->pixstep[i], hsub);
         out_off_right[i] = (AV_CEIL_RSHIFT(s->out.row_right, vsub) + s->out.off_rstep) * oright->linesize[i] + AV_CEIL_RSHIFT(s->out.off_right * s->pixstep[i], hsub);
a56fd051
     }
3f35f36a
 
     switch (s->out.format) {
c54632d3
     case ALTERNATING_LR:
     case ALTERNATING_RL:
         switch (s->in.format) {
a2a217b3
         case INTERLEAVE_ROWS_LR:
         case INTERLEAVE_ROWS_RL:
             for (i = 0; i < s->nb_planes; i++) {
                 oleft->linesize[i]  *= 2;
                 oright->linesize[i] *= 2;
             }
c54632d3
         case ABOVE_BELOW_LR:
         case ABOVE_BELOW_RL:
         case ABOVE_BELOW_2_LR:
         case ABOVE_BELOW_2_RL:
         case SIDE_BY_SIDE_LR:
         case SIDE_BY_SIDE_RL:
         case SIDE_BY_SIDE_2_LR:
         case SIDE_BY_SIDE_2_RL:
             oleft->width   = outlink->w;
             oright->width  = outlink->w;
             oleft->height  = outlink->h;
             oright->height = outlink->h;
 
             for (i = 0; i < s->nb_planes; i++) {
                 oleft->data[i]  += s->in_off_left[i];
                 oright->data[i] += s->in_off_right[i];
             }
             break;
         default:
             goto copy;
             break;
         }
         break;
8bd13eb8
     case HDMI:
         for (i = 0; i < s->nb_planes; i++) {
             int j, h = s->height >> ((i == 1 || i == 2) ? s->vsub : 0);
             int b = (s->blanks) >> ((i == 1 || i == 2) ? s->vsub : 0);
 
             for (j = h; j < h + b; j++)
                 memset(oleft->data[i] + j * s->linesize[i], 0, s->linesize[i]);
         }
3f35f36a
     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:
c54632d3
 copy:
ebe1ca01
         if (s->in.format == INTERLEAVE_COLS_LR ||
             s->in.format == INTERLEAVE_COLS_RL) {
             for (i = 0; i < s->nb_planes; i++) {
                 int d = (s->in.format & 1) != (s->out.format & 1);
 
                 interleave_cols_to_any(s, out_off_left,  i, ileft,  oleft,   d);
                 interleave_cols_to_any(s, out_off_right, i, iright, oright, !d);
             }
         } else {
             for (i = 0; i < s->nb_planes; i++) {
                 av_image_copy_plane(oleft->data[i] + out_off_left[i],
                                     oleft->linesize[i] * s->out.row_step,
                                     ileft->data[i] + s->in_off_left[i],
                                     ileft->linesize[i] * s->in.row_step,
                                     s->linesize[i], s->pheight[i]);
                 av_image_copy_plane(oright->data[i] + out_off_right[i],
                                     oright->linesize[i] * s->out.row_step,
                                     iright->data[i] + s->in_off_right[i],
                                     iright->linesize[i] * s->in.row_step,
                                     s->linesize[i], s->pheight[i]);
             }
a56fd051
         }
3f35f36a
         break;
     case MONO_L:
2bdd4349
         iright = ileft;
3f35f36a
     case MONO_R:
c54632d3
         switch (s->in.format) {
620b4757
         case INTERLEAVE_ROWS_LR:
         case INTERLEAVE_ROWS_RL:
             for (i = 0; i < s->nb_planes; i++) {
aefcc77b
                 out->linesize[i] *= 2;
620b4757
             }
c54632d3
         case ABOVE_BELOW_LR:
         case ABOVE_BELOW_RL:
         case ABOVE_BELOW_2_LR:
         case ABOVE_BELOW_2_RL:
         case SIDE_BY_SIDE_LR:
         case SIDE_BY_SIDE_RL:
         case SIDE_BY_SIDE_2_LR:
         case SIDE_BY_SIDE_2_RL:
             out->width  = outlink->w;
             out->height = outlink->h;
 
             for (i = 0; i < s->nb_planes; i++) {
                 out->data[i] += s->in_off_left[i];
             }
             break;
ebe1ca01
         case INTERLEAVE_COLS_LR:
         case INTERLEAVE_COLS_RL:
             for (i = 0; i < s->nb_planes; i++) {
                 const int d = (s->in.format & 1) != (s->out.format & 1);
 
                 interleave_cols_to_any(s, out_off_right, i, iright, out, d);
             }
             break;
c54632d3
         default:
             for (i = 0; i < s->nb_planes; i++) {
                 av_image_copy_plane(out->data[i], out->linesize[i],
                                     iright->data[i] + s->in_off_left[i],
                                     iright->linesize[i] * s->in.row_step,
                                     s->linesize[i], s->pheight[i]);
             }
             break;
a56fd051
         }
3f35f36a
         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: {
ebe1ca01
         if (s->in.format == INTERLEAVE_COLS_LR ||
             s->in.format == INTERLEAVE_COLS_RL) {
             const int d = (s->in.format & 1);
 
             anaglyph_ic(out->data[0],
                 ileft ->data[0] + s->in_off_left [0] +   d  * 3,
                 iright->data[0] + s->in_off_right[0] + (!d) * 3,
                 out->linesize[0],
                 ileft->linesize[0] * s->in.row_step,
                 iright->linesize[0] * s->in.row_step,
                 s->out.width, s->out.height,
                 s->ana_matrix[0], s->ana_matrix[1], s->ana_matrix[2]);
         } else {
             ThreadData td;
7b07e72a
 
ebe1ca01
             td.ileft = ileft; td.iright = iright; td.out = out;
             ctx->internal->execute(ctx, filter_slice, &td, NULL,
a0a57072
                                    FFMIN(s->out.height, ff_filter_get_nb_threads(ctx)));
ebe1ca01
         }
3f35f36a
         break;
     }
09812e12
     case CHECKERBOARD_RL:
     case CHECKERBOARD_LR:
         for (i = 0; i < s->nb_planes; i++) {
             int x, y;
 
             for (y = 0; y < s->pheight[i]; y++) {
                 uint8_t *dst = out->data[i] + out->linesize[i] * y;
ebe1ca01
                 const int d1 = (s->in.format == INTERLEAVE_COLS_LR || s->in.format == INTERLEAVE_COLS_RL) && (s->in.format & 1) != (s->out.format & 1);
                 const int d2 = (s->in.format == INTERLEAVE_COLS_LR || s->in.format == INTERLEAVE_COLS_RL) ? !d1 : 0;
                 const int m = 1 + (s->in.format == INTERLEAVE_COLS_LR || s->in.format == INTERLEAVE_COLS_RL);
                 uint8_t *left  = ileft->data[i]  + ileft->linesize[i]  * y + s->in_off_left[i]  + d1 * s->pixstep[i];
                 uint8_t *right = iright->data[i] + iright->linesize[i] * y + s->in_off_right[i] + d2 * s->pixstep[i];
09812e12
                 int p, b;
 
ebe1ca01
                 if (s->out.format == CHECKERBOARD_RL && s->in.format != INTERLEAVE_COLS_LR && s->in.format != INTERLEAVE_COLS_RL)
09812e12
                     FFSWAP(uint8_t*, left, right);
                 switch (s->pixstep[i]) {
                 case 1:
ebe1ca01
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=2, p++, b+=2) {
                         dst[x  ] = (b&1) == (y&1) ? left[p*m] : right[p*m];
                         dst[x+1] = (b&1) != (y&1) ? left[p*m] : right[p*m];
09812e12
                     }
                     break;
                 case 2:
ebe1ca01
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=4, p+=2, b+=2) {
                         AV_WN16(&dst[x  ], (b&1) == (y&1) ? AV_RN16(&left[p*m]) : AV_RN16(&right[p*m]));
                         AV_WN16(&dst[x+2], (b&1) != (y&1) ? AV_RN16(&left[p*m]) : AV_RN16(&right[p*m]));
09812e12
                     }
                     break;
                 case 3:
ebe1ca01
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=6, p+=3, b+=2) {
                         AV_WB24(&dst[x  ], (b&1) == (y&1) ? AV_RB24(&left[p*m]) : AV_RB24(&right[p*m]));
                         AV_WB24(&dst[x+3], (b&1) != (y&1) ? AV_RB24(&left[p*m]) : AV_RB24(&right[p*m]));
09812e12
                     }
                     break;
                 case 4:
ebe1ca01
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=8, p+=4, b+=2) {
                         AV_WN32(&dst[x  ], (b&1) == (y&1) ? AV_RN32(&left[p*m]) : AV_RN32(&right[p*m]));
                         AV_WN32(&dst[x+4], (b&1) != (y&1) ? AV_RN32(&left[p*m]) : AV_RN32(&right[p*m]));
09812e12
                     }
                     break;
                 case 6:
ebe1ca01
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=12, p+=6, b+=2) {
                         AV_WB48(&dst[x  ], (b&1) == (y&1) ? AV_RB48(&left[p*m]) : AV_RB48(&right[p*m]));
                         AV_WB48(&dst[x+6], (b&1) != (y&1) ? AV_RB48(&left[p*m]) : AV_RB48(&right[p*m]));
09812e12
                     }
                     break;
                 case 8:
ebe1ca01
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=16, p+=8, b+=2) {
                         AV_WN64(&dst[x  ], (b&1) == (y&1) ? AV_RN64(&left[p*m]) : AV_RN64(&right[p*m]));
                         AV_WN64(&dst[x+8], (b&1) != (y&1) ? AV_RN64(&left[p*m]) : AV_RN64(&right[p*m]));
09812e12
                     }
                     break;
                 }
             }
         }
         break;
32dd9b2c
     case INTERLEAVE_COLS_LR:
     case INTERLEAVE_COLS_RL:
         for (i = 0; i < s->nb_planes; i++) {
ebe1ca01
             const int d = (s->in.format == INTERLEAVE_COLS_LR || s->in.format == INTERLEAVE_COLS_RL);
             const int m = 1 + d;
32dd9b2c
             int x, y;
 
             for (y = 0; y < s->pheight[i]; y++) {
                 uint8_t *dst = out->data[i] + out->linesize[i] * y;
ebe1ca01
                 uint8_t *left = ileft->data[i] + ileft->linesize[i] * y * s->in.row_step + s->in_off_left[i] + d * s->pixstep[i];
32dd9b2c
                 uint8_t *right = iright->data[i] + iright->linesize[i] * y * s->in.row_step + s->in_off_right[i];
                 int p, b;
 
                 if (s->out.format == INTERLEAVE_COLS_LR)
                     FFSWAP(uint8_t*, left, right);
 
                 switch (s->pixstep[i]) {
                 case 1:
8d6b1ffb
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=2, p++, b+=2) {
ebe1ca01
                         dst[x  ] =   b&1  ? left[p*m] : right[p*m];
                         dst[x+1] = !(b&1) ? left[p*m] : right[p*m];
32dd9b2c
                     }
                     break;
                 case 2:
8d6b1ffb
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=4, p+=2, b+=2) {
ebe1ca01
                         AV_WN16(&dst[x  ],   b&1  ? AV_RN16(&left[p*m]) : AV_RN16(&right[p*m]));
                         AV_WN16(&dst[x+2], !(b&1) ? AV_RN16(&left[p*m]) : AV_RN16(&right[p*m]));
32dd9b2c
                     }
                     break;
                 case 3:
8d6b1ffb
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=6, p+=3, b+=2) {
ebe1ca01
                         AV_WB24(&dst[x  ],   b&1  ? AV_RB24(&left[p*m]) : AV_RB24(&right[p*m]));
                         AV_WB24(&dst[x+3], !(b&1) ? AV_RB24(&left[p*m]) : AV_RB24(&right[p*m]));
32dd9b2c
                     }
                     break;
                 case 4:
8d6b1ffb
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=8, p+=4, b+=2) {
ebe1ca01
                         AV_WN32(&dst[x  ],   b&1  ? AV_RN32(&left[p*m]) : AV_RN32(&right[p*m]));
                         AV_WN32(&dst[x+4], !(b&1) ? AV_RN32(&left[p*m]) : AV_RN32(&right[p*m]));
32dd9b2c
                     }
                     break;
                 case 6:
8d6b1ffb
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=12, p+=6, b+=2) {
ebe1ca01
                         AV_WB48(&dst[x  ],   b&1  ? AV_RB48(&left[p*m]) : AV_RB48(&right[p*m]));
                         AV_WB48(&dst[x+6], !(b&1) ? AV_RB48(&left[p*m]) : AV_RB48(&right[p*m]));
32dd9b2c
                     }
                     break;
                 case 8:
8d6b1ffb
                     for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=16, p+=8, b+=2) {
ebe1ca01
                         AV_WN64(&dst[x  ],   b&1 ?  AV_RN64(&left[p*m]) : AV_RN64(&right[p*m]));
                         AV_WN64(&dst[x+8], !(b&1) ? AV_RN64(&left[p*m]) : AV_RN64(&right[p*m]));
32dd9b2c
                     }
                     break;
                 }
             }
         }
         break;
3f35f36a
     default:
         av_assert0(0);
     }
 
2bdd4349
     if (oright != oleft) {
         if (s->out.format == ALTERNATING_LR)
             FFSWAP(AVFrame *, oleft, oright);
10b16aee
         oright->pts = s->prev->pts * 2;
2bdd4349
         ff_filter_frame(outlink, oright);
         out = oleft;
10b16aee
         oleft->pts = s->prev->pts + inpicref->pts;
         av_frame_free(&s->prev);
         s->prev = inpicref;
2bdd4349
     } else if (s->in.format == ALTERNATING_LR ||
                s->in.format == ALTERNATING_RL) {
10b16aee
         out->pts = s->prev->pts / 2;
         av_frame_free(&s->prev);
         av_frame_free(&inpicref);
     } else {
         av_frame_free(&s->prev);
         av_frame_free(&inpicref);
2bdd4349
     }
b4b02477
     out->sample_aspect_ratio = s->aspect;
83253431
     return ff_filter_frame(outlink, out);
3f35f36a
 }
 
2bdd4349
 static av_cold void uninit(AVFilterContext *ctx)
 {
     Stereo3DContext *s = ctx->priv;
 
     av_frame_free(&s->prev);
 }
 
3f35f36a
 static const AVFilterPad stereo3d_inputs[] = {
     {
b211607b
         .name         = "default",
         .type         = AVMEDIA_TYPE_VIDEO,
         .filter_frame = filter_frame,
3f35f36a
     },
     { NULL }
 };
 
 static const AVFilterPad stereo3d_outputs[] = {
     {
         .name         = "default",
         .type         = AVMEDIA_TYPE_VIDEO,
         .config_props = config_output,
     },
     { NULL }
 };
 
325f6e0a
 AVFilter ff_vf_stereo3d = {
3f35f36a
     .name          = "stereo3d",
     .description   = NULL_IF_CONFIG_SMALL("Convert video stereoscopic 3D view."),
     .priv_size     = sizeof(Stereo3DContext),
2bdd4349
     .uninit        = uninit,
3f35f36a
     .query_formats = query_formats,
     .inputs        = stereo3d_inputs,
     .outputs       = stereo3d_outputs,
     .priv_class    = &stereo3d_class,
7b07e72a
     .flags         = AVFILTER_FLAG_SLICE_THREADS,
3f35f36a
 };