/* * Copyright (c) 2010 Gordon Schmidt <gordon.schmidt <at> s2000.tu-chemnitz.de> * Copyright (c) 2013 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/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" 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) STEREO_CODE_COUNT // TODO: needs autodetection }; typedef struct StereoComponent { enum StereoCode format; int width, height; int off_left, off_right; int off_lstep, off_rstep; int row_left, row_right; } 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; int row_step; const int *ana_matrix[3]; int nb_planes; int linesize[4]; int pheight[4]; int hsub, vsub; int pixstep[4]; AVFrame *prev; double ts_unit; } 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}, SIDE_BY_SIDE_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" }, { "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" }, { 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; 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; } 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; 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 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 ABOVE_BELOW_2_LR: case ABOVE_BELOW_LR: case ABOVE_BELOW_2_RL: case ABOVE_BELOW_RL: if (s->out.format == INTERLEAVE_ROWS_LR || s->out.format == INTERLEAVE_ROWS_RL) { if (inlink->h & 3) { av_log(ctx, AV_LOG_ERROR, "height must be multiple of 4\n"); return AVERROR_INVALIDDATA; } } 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->row_step = 1; 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; 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: outlink->flags |= FF_LINK_FLAG_REQUEST_LOOP; fps.den *= 2; tb.num *= 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; 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 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->row_step = 2; s->height = s->height / 2; s->out.off_rstep = s->in.off_rstep = 1; break; case INTERLEAVE_ROWS_RL: s->row_step = 2; s->height = s->height / 2; s->out.off_lstep = s->in.off_lstep = 1; break; case MONO_R: s->in.off_left = s->in.off_right; s->in.row_left = s->in.row_right; case MONO_L: break; case ALTERNATING_RL: case ALTERNATING_LR: fps.num *= 2; tb.den *= 2; break; default: av_log(ctx, AV_LOG_ERROR, "output format %d is not supported\n", s->out.format); return AVERROR(EINVAL); } 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->ts_unit = av_q2d(av_inv_q(av_mul_q(outlink->frame_rate, outlink->time_base))); s->pheight[1] = s->pheight[2] = FF_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; return 0; } 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 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 in_off_left[4], in_off_right[4]; int i; 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; }; 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, inpicref); } for (i = 0; i < 4; i++) { int hsub = i == 1 || i == 2 ? s->hsub : 0; int vsub = i == 1 || i == 2 ? s->vsub : 0; in_off_left[i] = (FF_CEIL_RSHIFT(s->in.row_left, vsub) + s->in.off_lstep) * ileft->linesize[i] + FF_CEIL_RSHIFT(s->in.off_left * s->pixstep[i], hsub); in_off_right[i] = (FF_CEIL_RSHIFT(s->in.row_right, vsub) + s->in.off_rstep) * iright->linesize[i] + FF_CEIL_RSHIFT(s->in.off_right * s->pixstep[i], hsub); out_off_left[i] = (FF_CEIL_RSHIFT(s->out.row_left, vsub) + s->out.off_lstep) * oleft->linesize[i] + FF_CEIL_RSHIFT(s->out.off_left * s->pixstep[i], hsub); out_off_right[i] = (FF_CEIL_RSHIFT(s->out.row_right, vsub) + s->out.off_rstep) * oright->linesize[i] + FF_CEIL_RSHIFT(s->out.off_right * s->pixstep[i], hsub); } switch (s->out.format) { case ALTERNATING_LR: case ALTERNATING_RL: 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: for (i = 0; i < s->nb_planes; i++) { av_image_copy_plane(oleft->data[i] + out_off_left[i], oleft->linesize[i] * s->row_step, ileft->data[i] + in_off_left[i], ileft->linesize[i] * s->row_step, s->linesize[i], s->pheight[i]); av_image_copy_plane(oright->data[i] + out_off_right[i], oright->linesize[i] * s->row_step, iright->data[i] + in_off_right[i], iright->linesize[i] * s->row_step, s->linesize[i], s->pheight[i]); } break; case MONO_L: iright = ileft; case MONO_R: for (i = 0; i < s->nb_planes; i++) { av_image_copy_plane(out->data[i], out->linesize[i], iright->data[i] + in_off_left[i], iright->linesize[i], s->linesize[i], s->pheight[i]); } 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 x, y, il, ir, o; const uint8_t *lsrc = ileft->data[0]; const uint8_t *rsrc = iright->data[0]; uint8_t *dst = out->data[0]; int out_width = s->out.width; const int **ana_matrix = s->ana_matrix; for (y = 0; y < s->out.height; y++) { o = out->linesize[0] * y; il = in_off_left[0] + y * ileft->linesize[0]; ir = in_off_right[0] + y * iright->linesize[0]; for (x = 0; x < out_width; x++, il += 3, ir += 3, o+= 3) { dst[o ] = ana_convert(ana_matrix[0], lsrc + il, rsrc + ir); dst[o + 1] = ana_convert(ana_matrix[1], lsrc + il, rsrc + ir); dst[o + 2] = ana_convert(ana_matrix[2], lsrc + il, rsrc + ir); } } break; } default: av_assert0(0); } av_frame_free(&inpicref); av_frame_free(&s->prev); if (oright != oleft) { if (s->out.format == ALTERNATING_LR) FFSWAP(AVFrame *, oleft, oright); oright->pts = outlink->frame_count * s->ts_unit; ff_filter_frame(outlink, oright); out = oleft; oleft->pts = outlink->frame_count * s->ts_unit; } else if (s->in.format == ALTERNATING_LR || s->in.format == ALTERNATING_RL) { out->pts = outlink->frame_count * s->ts_unit; } 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 avfilter_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, };