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Diffstat (limited to 'libavfilter/vf_stereo3d.c')
| -rw-r--r-- | libavfilter/vf_stereo3d.c | 1116 |
1 files changed, 1116 insertions, 0 deletions
diff --git a/libavfilter/vf_stereo3d.c b/libavfilter/vf_stereo3d.c new file mode 100644 index 0000000000..2036c9432c --- /dev/null +++ b/libavfilter/vf_stereo3d.c @@ -0,0 +1,1116 @@ +/* + * Copyright (c) 2010 Gordon Schmidt <gordon.schmidt <at> s2000.tu-chemnitz.de> + * Copyright (c) 2013-2015 Paul B Mahol + * + * 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" +#include "libavutil/intreadwrite.h" +#include "libavutil/opt.h" +#include "libavutil/parseutils.h" +#include "libavutil/pixdesc.h" +#include "avfilter.h" +#include "drawutils.h" +#include "formats.h" +#include "internal.h" +#include "video.h" +#include "stereo3d.h" + +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 + ALTERNATING_LR, // alternating frames (left eye first, right eye second) + ALTERNATING_RL, // alternating frames (right eye first, left eye second) + CHECKERBOARD_LR, // checkerboard pattern (left eye first, right eye second) + CHECKERBOARD_RL, // checkerboard pattern (right eye first, left eye second) + INTERLEAVE_COLS_LR, // column-interleave (left eye first, right eye second) + INTERLEAVE_COLS_RL, // column-interleave (right eye first, left eye second) + HDMI, // HDMI frame pack (left eye first, right eye second) + STEREO_CODE_COUNT // TODO: needs autodetection +}; + +typedef struct StereoComponent { + int format; ///< StereoCode + int width, height; + int off_left, off_right; + int off_lstep, off_rstep; + int row_left, row_right; + int row_step; +} 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; + const int *ana_matrix[3]; + int nb_planes; + int linesize[4]; + int pheight[4]; + int hsub, vsub; + int pixstep[4]; + AVFrame *prev; + int blanks; + int in_off_left[4], in_off_right[4]; + Stereo3DDSPContext dsp; +} Stereo3DContext; + +#define OFFSET(x) offsetof(Stereo3DContext, x) +#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM + +static const AVOption stereo3d_options[] = { + { "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" }, + { "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" }, + { "out", "set output format", OFFSET(out.format), AV_OPT_TYPE_INT, {.i64=ANAGLYPH_RC_DUBOIS}, 0, STEREO_CODE_COUNT-1, FLAGS, "out"}, + { "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" }, + { "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" }, + { "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" }, + { "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" }, + { "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" }, + { "hdmi", "HDMI frame pack", 0, AV_OPT_TYPE_CONST, {.i64=HDMI}, 0, 0, FLAGS, "out" }, + { NULL } +}; + +AVFILTER_DEFINE_CLASS(stereo3d); + +static const enum AVPixelFormat anaglyph_pix_fmts[] = { + AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, + AV_PIX_FMT_NONE +}; + +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, + 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, + AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P, + AV_PIX_FMT_YUVJ411P, + AV_PIX_FMT_YUVJ420P, + AV_PIX_FMT_YUVJ422P, + AV_PIX_FMT_YUVJ440P, + AV_PIX_FMT_YUVJ444P, + 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, + AV_PIX_FMT_YUV444P9LE, AV_PIX_FMT_YUVA444P9LE, + AV_PIX_FMT_YUV444P9BE, AV_PIX_FMT_YUVA444P9BE, + 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, + AV_PIX_FMT_YUV444P10LE, AV_PIX_FMT_YUVA444P10LE, + AV_PIX_FMT_YUV444P10BE, AV_PIX_FMT_YUVA444P10BE, + AV_PIX_FMT_YUV420P12BE, AV_PIX_FMT_YUV420P12LE, + AV_PIX_FMT_YUV422P12BE, AV_PIX_FMT_YUV422P12LE, + AV_PIX_FMT_YUV444P12BE, AV_PIX_FMT_YUV444P12LE, + AV_PIX_FMT_YUV420P14BE, AV_PIX_FMT_YUV420P14LE, + AV_PIX_FMT_YUV422P14BE, AV_PIX_FMT_YUV422P14LE, + AV_PIX_FMT_YUV444P14BE, AV_PIX_FMT_YUV444P14LE, + 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, + AV_PIX_FMT_YUV444P16LE, AV_PIX_FMT_YUVA444P16LE, + AV_PIX_FMT_YUV444P16BE, AV_PIX_FMT_YUVA444P16BE, + AV_PIX_FMT_NONE +}; + +static int query_formats(AVFilterContext *ctx) +{ + Stereo3DContext *s = ctx->priv; + const enum AVPixelFormat *pix_fmts; + AVFilterFormats *fmts_list; + + 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; + } + + fmts_list = ff_make_format_list(pix_fmts); + if (!fmts_list) + return AVERROR(ENOMEM); + return ff_set_common_formats(ctx, fmts_list); +} + +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); +} + +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; + } +} + +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; + } +} + +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; + AVRational fps = inlink->frame_rate; + AVRational tb = inlink->time_base; + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format); + int ret; + + switch (s->in.format) { + case INTERLEAVE_COLS_LR: + case INTERLEAVE_COLS_RL: + 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; + case INTERLEAVE_ROWS_LR: + case INTERLEAVE_ROWS_RL: + 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; + } + + s->in.width = + s->width = inlink->w; + s->in.height = + s->height = inlink->h; + s->in.off_lstep = + s->in.off_rstep = + s->in.off_left = + s->in.off_right = + s->in.row_left = + s->in.row_right = 0; + s->in.row_step = 1; + + 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; + 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; + 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; + case ALTERNATING_RL: + case ALTERNATING_LR: + fps.den *= 2; + tb.num *= 2; + break; + case INTERLEAVE_COLS_RL: + case INTERLEAVE_COLS_LR: + s->width = inlink->w / 2; + break; + 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; + if (s->out.format != CHECKERBOARD_LR && + s->out.format != CHECKERBOARD_RL) + 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_lstep = + s->out.off_rstep = + s->out.off_left = + s->out.off_right = + s->out.row_left = + s->out.row_right = 0; + s->out.row_step = 1; + + 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: { + 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]; + break; + } + case SIDE_BY_SIDE_2_LR: + aspect.den *= 2; + case SIDE_BY_SIDE_LR: + s->out.width = s->width * 2; + s->out.off_right = s->width; + break; + case SIDE_BY_SIDE_2_RL: + aspect.den *= 2; + case SIDE_BY_SIDE_RL: + s->out.width = s->width * 2; + s->out.off_left = s->width; + break; + case ABOVE_BELOW_2_LR: + aspect.num *= 2; + case ABOVE_BELOW_LR: + s->out.height = s->height * 2; + s->out.row_right = s->height; + break; + case HDMI: + 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; + s->out.height = s->height * 2 + s->blanks; + s->out.row_right = s->height + s->blanks; + break; + case ABOVE_BELOW_2_RL: + aspect.num *= 2; + case ABOVE_BELOW_RL: + s->out.height = s->height * 2; + s->out.row_left = s->height; + break; + case INTERLEAVE_ROWS_LR: + s->in.row_step = 1 + (s->in.format == INTERLEAVE_ROWS_RL); + s->out.row_step = 2; + s->out.height = s->height * 2; + s->out.off_rstep = 1; + break; + case INTERLEAVE_ROWS_RL: + s->in.row_step = 1 + (s->in.format == INTERLEAVE_ROWS_LR); + s->out.row_step = 2; + s->out.height = s->height * 2; + s->out.off_lstep = 1; + break; + case MONO_R: + if (s->in.format != INTERLEAVE_COLS_LR) { + s->in.off_left = s->in.off_right; + s->in.row_left = s->in.row_right; + } + if (s->in.format == INTERLEAVE_ROWS_LR) + FFSWAP(int, s->in.off_lstep, s->in.off_rstep); + break; + case MONO_L: + if (s->in.format == INTERLEAVE_ROWS_RL) + FFSWAP(int, s->in.off_lstep, s->in.off_rstep); + break; + case ALTERNATING_RL: + case ALTERNATING_LR: + fps.num *= 2; + tb.den *= 2; + break; + case CHECKERBOARD_LR: + case CHECKERBOARD_RL: + s->out.width = s->width * 2; + break; + case INTERLEAVE_COLS_LR: + case INTERLEAVE_COLS_RL: + s->out.width = s->width * 2; + break; + default: + av_log(ctx, AV_LOG_ERROR, "output format %d is not supported\n", s->out.format); + return AVERROR(EINVAL); + } + + 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); + } + } + + outlink->w = s->out.width; + outlink->h = s->out.height; + outlink->frame_rate = fps; + outlink->time_base = tb; + outlink->sample_aspect_ratio = aspect; + + 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); + s->pheight[1] = s->pheight[2] = AV_CEIL_RSHIFT(s->height, desc->log2_chroma_h); + s->pheight[0] = s->pheight[3] = s->height; + s->hsub = desc->log2_chroma_w; + s->vsub = desc->log2_chroma_h; + + s->dsp.anaglyph = anaglyph; + if (ARCH_X86) + ff_stereo3d_init_x86(&s->dsp); + + return 0; +} + +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; + + s->dsp.anaglyph(out->data[0] + out->linesize[0] * start, + 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]); + + return 0; +} + +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; + } + } +} + +static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref) +{ + AVFilterContext *ctx = inlink->dst; + Stereo3DContext *s = ctx->priv; + AVFilterLink *outlink = ctx->outputs[0]; + AVFrame *out, *oleft, *oright, *ileft, *iright; + int out_off_left[4], out_off_right[4]; + int i, ret; + + if (s->in.format == s->out.format) + return ff_filter_frame(outlink, inpicref); + + switch (s->out.format) { + case ALTERNATING_LR: + case ALTERNATING_RL: + if (!s->prev) { + s->prev = inpicref; + return 0; + } + break; + }; + + 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; + }; + + 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 || + s->in.format == ABOVE_BELOW_2_RL || + s->in.format == INTERLEAVE_ROWS_LR || + s->in.format == INTERLEAVE_ROWS_RL)) { + oright = av_frame_clone(s->prev); + oleft = av_frame_clone(s->prev); + if (!oright || !oleft) { + av_frame_free(&oright); + av_frame_free(&oleft); + av_frame_free(&s->prev); + av_frame_free(&inpicref); + return AVERROR(ENOMEM); + } + } 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 || + s->in.format == ABOVE_BELOW_2_RL || + s->in.format == INTERLEAVE_ROWS_LR || + s->in.format == INTERLEAVE_ROWS_RL)) { + out = oleft = oright = av_frame_clone(inpicref); + if (!out) { + av_frame_free(&s->prev); + av_frame_free(&inpicref); + return AVERROR(ENOMEM); + } + } 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; + } 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); + } + av_frame_copy_props(oright, s->prev); + } + } + + for (i = 0; i < 4; i++) { + int hsub = i == 1 || i == 2 ? s->hsub : 0; + int vsub = i == 1 || i == 2 ? s->vsub : 0; + 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); + } + + switch (s->out.format) { + case ALTERNATING_LR: + case ALTERNATING_RL: + switch (s->in.format) { + case INTERLEAVE_ROWS_LR: + case INTERLEAVE_ROWS_RL: + for (i = 0; i < s->nb_planes; i++) { + oleft->linesize[i] *= 2; + oright->linesize[i] *= 2; + } + 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; + 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]); + } + 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: +copy: + 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]); + } + } + break; + case MONO_L: + iright = ileft; + case MONO_R: + switch (s->in.format) { + case INTERLEAVE_ROWS_LR: + case INTERLEAVE_ROWS_RL: + for (i = 0; i < s->nb_planes; i++) { + out->linesize[i] *= 2; + } + 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; + 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; + 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; + } + 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: { + 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; + + td.ileft = ileft; td.iright = iright; td.out = out; + ctx->internal->execute(ctx, filter_slice, &td, NULL, + FFMIN(s->out.height, ctx->graph->nb_threads)); + } + break; + } + 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; + 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]; + int p, b; + + if (s->out.format == CHECKERBOARD_RL && s->in.format != INTERLEAVE_COLS_LR && s->in.format != INTERLEAVE_COLS_RL) + FFSWAP(uint8_t*, left, right); + switch (s->pixstep[i]) { + case 1: + 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]; + } + break; + case 2: + 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])); + } + break; + case 3: + 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])); + } + break; + case 4: + 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])); + } + break; + case 6: + 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])); + } + break; + case 8: + 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])); + } + break; + } + } + } + break; + case INTERLEAVE_COLS_LR: + case INTERLEAVE_COLS_RL: + for (i = 0; i < s->nb_planes; i++) { + const int d = (s->in.format == INTERLEAVE_COLS_LR || s->in.format == INTERLEAVE_COLS_RL); + const int m = 1 + d; + int x, y; + + for (y = 0; y < s->pheight[i]; y++) { + uint8_t *dst = out->data[i] + out->linesize[i] * y; + uint8_t *left = ileft->data[i] + ileft->linesize[i] * y * s->in.row_step + s->in_off_left[i] + d * s->pixstep[i]; + 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: + for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=2, p++, b+=2) { + dst[x ] = b&1 ? left[p*m] : right[p*m]; + dst[x+1] = !(b&1) ? left[p*m] : right[p*m]; + } + break; + case 2: + for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=4, p+=2, b+=2) { + 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])); + } + break; + case 3: + for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=6, p+=3, b+=2) { + 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])); + } + break; + case 4: + for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=8, p+=4, b+=2) { + 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])); + } + break; + case 6: + for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=12, p+=6, b+=2) { + 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])); + } + break; + case 8: + for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=16, p+=8, b+=2) { + 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])); + } + break; + } + } + } + break; + default: + av_assert0(0); + } + + if (oright != oleft) { + if (s->out.format == ALTERNATING_LR) + FFSWAP(AVFrame *, oleft, oright); + oright->pts = s->prev->pts * 2; + ff_filter_frame(outlink, oright); + out = oleft; + oleft->pts = s->prev->pts + inpicref->pts; + av_frame_free(&s->prev); + s->prev = inpicref; + } else if (s->in.format == ALTERNATING_LR || + s->in.format == ALTERNATING_RL) { + 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); + } + return ff_filter_frame(outlink, out); +} + +static av_cold void uninit(AVFilterContext *ctx) +{ + Stereo3DContext *s = ctx->priv; + + av_frame_free(&s->prev); +} + +static const AVFilterPad stereo3d_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame, + }, + { NULL } +}; + +static const AVFilterPad stereo3d_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = config_output, + }, + { NULL } +}; + +AVFilter ff_vf_stereo3d = { + .name = "stereo3d", + .description = NULL_IF_CONFIG_SMALL("Convert video stereoscopic 3D view."), + .priv_size = sizeof(Stereo3DContext), + .uninit = uninit, + .query_formats = query_formats, + .inputs = stereo3d_inputs, + .outputs = stereo3d_outputs, + .priv_class = &stereo3d_class, + .flags = AVFILTER_FLAG_SLICE_THREADS, +}; |