| /* |
| * 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 "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 |
| STEREO_CODE_COUNT // TODO: needs autodetection |
| }; |
| |
| typedef struct StereoComponent { |
| enum StereoCode format; |
| int width, height; |
| int off_left, off_right; |
| 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; |
| int ana_matrix[3][6]; |
| } 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, ABOVE_BELOW_2_RL, 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" }, |
| { "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" }, |
| { "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 av_cold int init(AVFilterContext *ctx, const char *args) |
| { |
| Stereo3DContext *s = ctx->priv; |
| static const char *shorthand[] = { "in", "out", NULL }; |
| int ret; |
| |
| s->class = &stereo3d_class; |
| av_opt_set_defaults(s); |
| |
| if ((ret = av_opt_set_from_string(s, args, shorthand, "=", ":")) < 0) |
| return ret; |
| |
| return 0; |
| } |
| |
| static int query_formats(AVFilterContext *ctx) |
| { |
| static const enum AVPixelFormat pix_fmts[] = { |
| AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE |
| }; |
| |
| ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); |
| |
| return 0; |
| } |
| |
| static int config_output(AVFilterLink *outlink) |
| { |
| AVFilterContext *ctx = outlink->src; |
| AVFilterLink *inlink = ctx->inputs[0]; |
| Stereo3DContext *s = ctx->priv; |
| AVRational aspect = inlink->sample_aspect_ratio; |
| |
| s->in.width = |
| s->width = inlink->w; |
| s->in.height = |
| s->height = inlink->h; |
| s->row_step = 1; |
| s->in.off_left = |
| s->in.off_right = |
| s->in.row_left = |
| s->in.row_right = 0; |
| |
| switch (s->in.format) { |
| case SIDE_BY_SIDE_2_LR: |
| aspect.num *= 2; |
| case SIDE_BY_SIDE_LR: |
| s->width = inlink->w / 2; |
| s->in.off_right = s->width * 3; |
| break; |
| case SIDE_BY_SIDE_2_RL: |
| aspect.num *= 2; |
| case SIDE_BY_SIDE_RL: |
| s->width = inlink->w / 2; |
| s->in.off_left = s->width * 3; |
| break; |
| case ABOVE_BELOW_2_LR: |
| aspect.den *= 2; |
| case ABOVE_BELOW_LR: |
| s->in.row_right = |
| s->height = inlink->h / 2; |
| break; |
| case ABOVE_BELOW_2_RL: |
| aspect.den *= 2; |
| case ABOVE_BELOW_RL: |
| s->in.row_left = |
| s->height = inlink->h / 2; |
| break; |
| default: |
| av_log(ctx, AV_LOG_ERROR, "input format %d is not supported\n", s->in.format); |
| return AVERROR(EINVAL); |
| } |
| |
| s->out.width = s->width; |
| s->out.height = s->height; |
| s->out.off_left = |
| s->out.off_right = |
| s->out.row_left = |
| s->out.row_right = 0; |
| |
| switch (s->out.format) { |
| case ANAGLYPH_RB_GRAY: |
| case ANAGLYPH_RG_GRAY: |
| case ANAGLYPH_RC_GRAY: |
| case ANAGLYPH_RC_HALF: |
| case ANAGLYPH_RC_COLOR: |
| case ANAGLYPH_RC_DUBOIS: |
| case ANAGLYPH_GM_GRAY: |
| case ANAGLYPH_GM_HALF: |
| case ANAGLYPH_GM_COLOR: |
| case ANAGLYPH_GM_DUBOIS: |
| case ANAGLYPH_YB_GRAY: |
| case ANAGLYPH_YB_HALF: |
| case ANAGLYPH_YB_COLOR: |
| case ANAGLYPH_YB_DUBOIS: |
| memcpy(s->ana_matrix, ana_coeff[s->out.format], sizeof(s->ana_matrix)); |
| break; |
| case SIDE_BY_SIDE_2_LR: |
| aspect.num /= 2; |
| case SIDE_BY_SIDE_LR: |
| s->out.width = |
| s->out.off_right = s->width * 3; |
| break; |
| case SIDE_BY_SIDE_2_RL: |
| aspect.num /= 2; |
| case SIDE_BY_SIDE_RL: |
| s->out.width = s->width * 2; |
| s->out.off_left = s->width * 3; |
| break; |
| case ABOVE_BELOW_2_LR: |
| aspect.den /= 2; |
| case ABOVE_BELOW_LR: |
| s->out.height = s->height * 2; |
| s->out.row_right = s->height; |
| break; |
| case ABOVE_BELOW_2_RL: |
| aspect.den /= 2; |
| case ABOVE_BELOW_RL: |
| s->out.height = s->height * 2; |
| s->out.row_left = s->height; |
| break; |
| case INTERLEAVE_ROWS_LR: |
| s->row_step = 2; |
| s->height = s->height / 2; |
| s->out.off_right = s->width * 3; |
| s->in.off_right += s->in.width * 3; |
| break; |
| case INTERLEAVE_ROWS_RL: |
| s->row_step = 2; |
| s->height = s->height / 2; |
| s->out.off_left = s->width * 3; |
| s->in.off_left += s->in.width * 3; |
| break; |
| case MONO_R: |
| s->in.off_left = s->in.off_right; |
| s->in.row_left = s->in.row_right; |
| case MONO_L: |
| break; |
| default: |
| av_log(ctx, AV_LOG_ERROR, "output format is not supported\n"); |
| return AVERROR(EINVAL); |
| } |
| |
| outlink->w = s->out.width; |
| outlink->h = s->out.height; |
| outlink->sample_aspect_ratio = aspect; |
| |
| return 0; |
| } |
| |
| static inline uint8_t ana_convert(const int *coeff, uint8_t *left, uint8_t *right) |
| { |
| int sum; |
| |
| sum = coeff[0] * left[0] + coeff[3] * right[0]; //red in |
| sum += coeff[1] * left[1] + coeff[4] * right[1]; //green in |
| sum += coeff[2] * left[2] + coeff[5] * right[2]; //blue in |
| |
| return av_clip_uint8(sum >> 16); |
| } |
| |
| static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| Stereo3DContext *s = ctx->priv; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| AVFilterBufferRef *out; |
| int out_off_left, out_off_right; |
| int in_off_left, in_off_right; |
| int ret; |
| |
| out = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h); |
| if (!out) { |
| avfilter_unref_bufferp(&inpicref); |
| return AVERROR(ENOMEM); |
| } |
| |
| out->pts = inpicref->pts; |
| out->pos = inpicref->pos; |
| |
| in_off_left = s->in.row_left * inpicref->linesize[0] + s->in.off_left; |
| in_off_right = s->in.row_right * inpicref->linesize[0] + s->in.off_right; |
| out_off_left = s->out.row_left * out->linesize[0] + s->out.off_left; |
| out_off_right = s->out.row_right * out->linesize[0] + s->out.off_right; |
| |
| switch (s->out.format) { |
| case SIDE_BY_SIDE_LR: |
| case SIDE_BY_SIDE_RL: |
| case SIDE_BY_SIDE_2_LR: |
| case SIDE_BY_SIDE_2_RL: |
| case ABOVE_BELOW_LR: |
| case ABOVE_BELOW_RL: |
| case ABOVE_BELOW_2_LR: |
| case ABOVE_BELOW_2_RL: |
| case INTERLEAVE_ROWS_LR: |
| case INTERLEAVE_ROWS_RL: |
| av_image_copy_plane(out->data[0] + out_off_left, |
| out->linesize[0] * s->row_step, |
| inpicref->data[0] + in_off_left, |
| inpicref->linesize[0] * s->row_step, |
| 3 * s->width, s->height); |
| av_image_copy_plane(out->data[0] + out_off_right, |
| out->linesize[0] * s->row_step, |
| inpicref->data[0] + in_off_right, |
| inpicref->linesize[0] * s->row_step, |
| 3 * s->width, s->height); |
| break; |
| case MONO_L: |
| case MONO_R: |
| av_image_copy_plane(out->data[0], out->linesize[0], |
| inpicref->data[0] + in_off_left, |
| inpicref->linesize[0], |
| 3 * s->width, s->height); |
| break; |
| case ANAGLYPH_RB_GRAY: |
| case ANAGLYPH_RG_GRAY: |
| case ANAGLYPH_RC_GRAY: |
| case ANAGLYPH_RC_HALF: |
| case ANAGLYPH_RC_COLOR: |
| case ANAGLYPH_RC_DUBOIS: |
| case ANAGLYPH_GM_GRAY: |
| case ANAGLYPH_GM_HALF: |
| case ANAGLYPH_GM_COLOR: |
| case ANAGLYPH_GM_DUBOIS: |
| case ANAGLYPH_YB_GRAY: |
| case ANAGLYPH_YB_HALF: |
| case ANAGLYPH_YB_COLOR: |
| case ANAGLYPH_YB_DUBOIS: { |
| int i, x, y, il, ir, o; |
| uint8_t *src = inpicref->data[0]; |
| uint8_t *dst = out->data[0]; |
| int out_width = s->out.width; |
| int *ana_matrix[3]; |
| |
| for (i = 0; i < 3; i++) |
| ana_matrix[i] = s->ana_matrix[i]; |
| |
| for (y = 0; y < s->out.height; y++) { |
| o = out->linesize[0] * y; |
| il = in_off_left + y * inpicref->linesize[0]; |
| ir = in_off_right + y * inpicref->linesize[0]; |
| for (x = 0; x < out_width; x++, il += 3, ir += 3, o+= 3) { |
| dst[o ] = ana_convert(ana_matrix[0], src + il, src + ir); |
| dst[o + 1] = ana_convert(ana_matrix[1], src + il, src + ir); |
| dst[o + 2] = ana_convert(ana_matrix[2], src + il, src + ir); |
| } |
| } |
| break; |
| } |
| default: |
| av_assert0(0); |
| } |
| |
| ret = ff_filter_frame(outlink, out); |
| avfilter_unref_bufferp(&inpicref); |
| if (ret < 0) |
| return ret; |
| return 0; |
| } |
| |
| static av_cold void uninit(AVFilterContext *ctx) |
| { |
| Stereo3DContext *s = ctx->priv; |
| |
| av_opt_free(s); |
| } |
| |
| static const AVFilterPad stereo3d_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .get_video_buffer = ff_null_get_video_buffer, |
| .filter_frame = filter_frame, |
| .min_perms = AV_PERM_READ, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad stereo3d_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_output, |
| .min_perms = AV_PERM_WRITE, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter avfilter_vf_stereo3d = { |
| .name = "stereo3d", |
| .description = NULL_IF_CONFIG_SMALL("Convert video stereoscopic 3D view."), |
| .priv_size = sizeof(Stereo3DContext), |
| .init = init, |
| .uninit = uninit, |
| .query_formats = query_formats, |
| .inputs = stereo3d_inputs, |
| .outputs = stereo3d_outputs, |
| .priv_class = &stereo3d_class, |
| }; |
