| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2022 Paul B Mahol | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 6 | * FFmpeg is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU Lesser General Public | ||
| 8 | * License as published by the Free Software Foundation; either | ||
| 9 | * version 2.1 of the License, or (at your option) any later version. | ||
| 10 | * | ||
| 11 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 14 | * Lesser General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU Lesser General Public | ||
| 17 | * License along with FFmpeg; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include "libavutil/imgutils.h" | ||
| 22 | #include "libavutil/pixdesc.h" | ||
| 23 | #include "libavutil/opt.h" | ||
| 24 | #include "avfilter.h" | ||
| 25 | #include "filters.h" | ||
| 26 | #include "video.h" | ||
| 27 | #include "framesync.h" | ||
| 28 | |||
| 29 | typedef struct MultiplyContext { | ||
| 30 | const AVClass *class; | ||
| 31 | |||
| 32 | float offset; | ||
| 33 | float scale; | ||
| 34 | int planes; | ||
| 35 | |||
| 36 | int linesize[4]; | ||
| 37 | int nb_planes; | ||
| 38 | |||
| 39 | FFFrameSync fs; | ||
| 40 | } MultiplyContext; | ||
| 41 | |||
| 42 | #define OFFSET(x) offsetof(MultiplyContext, x) | ||
| 43 | #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM | ||
| 44 | |||
| 45 | typedef struct ThreadData { | ||
| 46 | AVFrame *src, *ref, *dst; | ||
| 47 | } ThreadData; | ||
| 48 | |||
| 49 | static const AVOption multiply_options[] = { | ||
| 50 | { "scale", "set scale", OFFSET(scale), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0., 9., FLAGS }, | ||
| 51 | { "offset", "set offset", OFFSET(offset), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, -1., 1., FLAGS }, | ||
| 52 | { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=0xF}, 0., 0xF, FLAGS }, | ||
| 53 | { NULL } | ||
| 54 | }; | ||
| 55 | |||
| 56 | static const enum AVPixelFormat pix_fmts[] = { | ||
| 57 | AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32, | ||
| 58 | AV_PIX_FMT_NONE | ||
| 59 | }; | ||
| 60 | |||
| 61 | ✗ | static int config_input(AVFilterLink *inlink) | |
| 62 | { | ||
| 63 | ✗ | AVFilterContext *ctx = inlink->dst; | |
| 64 | ✗ | MultiplyContext *s = ctx->priv; | |
| 65 | int ret; | ||
| 66 | |||
| 67 | ✗ | s->nb_planes = av_pix_fmt_count_planes(inlink->format); | |
| 68 | ✗ | if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0) | |
| 69 | ✗ | return ret; | |
| 70 | |||
| 71 | ✗ | return 0; | |
| 72 | } | ||
| 73 | |||
| 74 | ✗ | static void multiply(const uint8_t *ssrc, const uint8_t *rref, uint8_t *ddst, | |
| 75 | float scale, float offset, int w) | ||
| 76 | { | ||
| 77 | ✗ | const float *src = (const float *)ssrc; | |
| 78 | ✗ | const float *ref = (const float *)rref; | |
| 79 | ✗ | float *dst = (float *)ddst; | |
| 80 | |||
| 81 | ✗ | for (int x = 0; x < w; x++) { | |
| 82 | ✗ | const float factor = (ref[x] + offset) * scale; | |
| 83 | |||
| 84 | ✗ | dst[x] = src[x] * factor; | |
| 85 | } | ||
| 86 | ✗ | } | |
| 87 | |||
| 88 | ✗ | static int multiply_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) | |
| 89 | { | ||
| 90 | ✗ | MultiplyContext *s = ctx->priv; | |
| 91 | ✗ | const float offset = s->offset; | |
| 92 | ✗ | const float scale = s->scale; | |
| 93 | ✗ | ThreadData *td = arg; | |
| 94 | |||
| 95 | ✗ | for (int p = 0; p < s->nb_planes; p++) { | |
| 96 | ✗ | const ptrdiff_t src_linesize = td->src->linesize[p]; | |
| 97 | ✗ | const ptrdiff_t ref_linesize = td->ref->linesize[p]; | |
| 98 | ✗ | const ptrdiff_t dst_linesize = td->dst->linesize[p]; | |
| 99 | ✗ | const int w = td->src->width; | |
| 100 | ✗ | const int h = td->src->height; | |
| 101 | ✗ | const int slice_start = (h * jobnr) / nb_jobs; | |
| 102 | ✗ | const int slice_end = (h * (jobnr+1)) / nb_jobs; | |
| 103 | ✗ | const uint8_t *src = td->src->data[p] + slice_start * src_linesize; | |
| 104 | ✗ | const uint8_t *ref = td->ref->data[p] + slice_start * ref_linesize; | |
| 105 | ✗ | uint8_t *dst = td->dst->data[p] + slice_start * dst_linesize; | |
| 106 | |||
| 107 | ✗ | if (!((1 << p) & s->planes)) { | |
| 108 | ✗ | av_image_copy_plane(dst, dst_linesize, ref, ref_linesize, | |
| 109 | s->linesize[p], slice_end - slice_start); | ||
| 110 | ✗ | continue; | |
| 111 | } | ||
| 112 | |||
| 113 | ✗ | for (int y = slice_start; y < slice_end; y++) { | |
| 114 | ✗ | multiply(src, ref, dst, scale, offset, w); | |
| 115 | |||
| 116 | ✗ | dst += dst_linesize; | |
| 117 | ✗ | src += src_linesize; | |
| 118 | ✗ | ref += ref_linesize; | |
| 119 | } | ||
| 120 | } | ||
| 121 | |||
| 122 | ✗ | return 0; | |
| 123 | } | ||
| 124 | |||
| 125 | ✗ | static int process_frame(FFFrameSync *fs) | |
| 126 | { | ||
| 127 | ✗ | AVFilterContext *ctx = fs->parent; | |
| 128 | ✗ | MultiplyContext *s = fs->opaque; | |
| 129 | ✗ | AVFilterLink *outlink = ctx->outputs[0]; | |
| 130 | AVFrame *out, *src, *ref; | ||
| 131 | int ret; | ||
| 132 | |||
| 133 | ✗ | if ((ret = ff_framesync_get_frame(&s->fs, 0, &src, 0)) < 0 || | |
| 134 | ✗ | (ret = ff_framesync_get_frame(&s->fs, 1, &ref, 0)) < 0) | |
| 135 | ✗ | return ret; | |
| 136 | |||
| 137 | ✗ | if (ctx->is_disabled) { | |
| 138 | ✗ | out = av_frame_clone(src); | |
| 139 | ✗ | if (!out) | |
| 140 | ✗ | return AVERROR(ENOMEM); | |
| 141 | } else { | ||
| 142 | ThreadData td; | ||
| 143 | |||
| 144 | ✗ | out = ff_get_video_buffer(outlink, outlink->w, outlink->h); | |
| 145 | ✗ | if (!out) | |
| 146 | ✗ | return AVERROR(ENOMEM); | |
| 147 | ✗ | av_frame_copy_props(out, src); | |
| 148 | |||
| 149 | ✗ | td.src = src; | |
| 150 | ✗ | td.ref = ref; | |
| 151 | ✗ | td.dst = out; | |
| 152 | |||
| 153 | ✗ | ff_filter_execute(ctx, multiply_slice, &td, NULL, | |
| 154 | ✗ | FFMIN(outlink->h, ff_filter_get_nb_threads(ctx))); | |
| 155 | } | ||
| 156 | ✗ | out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base); | |
| 157 | |||
| 158 | ✗ | return ff_filter_frame(outlink, out); | |
| 159 | } | ||
| 160 | |||
| 161 | ✗ | static int config_output(AVFilterLink *outlink) | |
| 162 | { | ||
| 163 | ✗ | AVFilterContext *ctx = outlink->src; | |
| 164 | ✗ | MultiplyContext *s = ctx->priv; | |
| 165 | ✗ | AVFilterLink *source = ctx->inputs[0]; | |
| 166 | ✗ | AVFilterLink *ref = ctx->inputs[1]; | |
| 167 | ✗ | FilterLink *il = ff_filter_link(source); | |
| 168 | ✗ | FilterLink *ol = ff_filter_link(outlink); | |
| 169 | FFFrameSyncIn *in; | ||
| 170 | int ret; | ||
| 171 | |||
| 172 | ✗ | if (source->w != ref->w || source->h != ref->h) { | |
| 173 | ✗ | av_log(ctx, AV_LOG_ERROR, "First input link %s parameters " | |
| 174 | "(size %dx%d) do not match the corresponding " | ||
| 175 | "second input link %s parameters (%dx%d)\n", | ||
| 176 | ✗ | ctx->input_pads[0].name, source->w, source->h, | |
| 177 | ✗ | ctx->input_pads[1].name, ref->w, ref->h); | |
| 178 | ✗ | return AVERROR(EINVAL); | |
| 179 | } | ||
| 180 | |||
| 181 | ✗ | outlink->w = source->w; | |
| 182 | ✗ | outlink->h = source->h; | |
| 183 | ✗ | outlink->sample_aspect_ratio = source->sample_aspect_ratio; | |
| 184 | ✗ | ol->frame_rate = il->frame_rate; | |
| 185 | |||
| 186 | ✗ | if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0) | |
| 187 | ✗ | return ret; | |
| 188 | |||
| 189 | ✗ | in = s->fs.in; | |
| 190 | ✗ | in[0].time_base = source->time_base; | |
| 191 | ✗ | in[1].time_base = ref->time_base; | |
| 192 | ✗ | in[0].sync = 1; | |
| 193 | ✗ | in[0].before = EXT_STOP; | |
| 194 | ✗ | in[0].after = EXT_INFINITY; | |
| 195 | ✗ | in[1].sync = 1; | |
| 196 | ✗ | in[1].before = EXT_STOP; | |
| 197 | ✗ | in[1].after = EXT_INFINITY; | |
| 198 | ✗ | s->fs.opaque = s; | |
| 199 | ✗ | s->fs.on_event = process_frame; | |
| 200 | |||
| 201 | ✗ | ret = ff_framesync_configure(&s->fs); | |
| 202 | ✗ | outlink->time_base = s->fs.time_base; | |
| 203 | |||
| 204 | ✗ | return ret; | |
| 205 | } | ||
| 206 | |||
| 207 | ✗ | static int activate(AVFilterContext *ctx) | |
| 208 | { | ||
| 209 | ✗ | MultiplyContext *s = ctx->priv; | |
| 210 | ✗ | return ff_framesync_activate(&s->fs); | |
| 211 | } | ||
| 212 | |||
| 213 | ✗ | static av_cold void uninit(AVFilterContext *ctx) | |
| 214 | { | ||
| 215 | ✗ | MultiplyContext *s = ctx->priv; | |
| 216 | |||
| 217 | ✗ | ff_framesync_uninit(&s->fs); | |
| 218 | ✗ | } | |
| 219 | |||
| 220 | static const AVFilterPad multiply_inputs[] = { | ||
| 221 | { | ||
| 222 | .name = "source", | ||
| 223 | .type = AVMEDIA_TYPE_VIDEO, | ||
| 224 | .config_props = config_input, | ||
| 225 | }, | ||
| 226 | { | ||
| 227 | .name = "factor", | ||
| 228 | .type = AVMEDIA_TYPE_VIDEO, | ||
| 229 | }, | ||
| 230 | }; | ||
| 231 | |||
| 232 | static const AVFilterPad multiply_outputs[] = { | ||
| 233 | { | ||
| 234 | .name = "default", | ||
| 235 | .type = AVMEDIA_TYPE_VIDEO, | ||
| 236 | .config_props = config_output, | ||
| 237 | }, | ||
| 238 | }; | ||
| 239 | |||
| 240 | AVFILTER_DEFINE_CLASS(multiply); | ||
| 241 | |||
| 242 | const AVFilter ff_vf_multiply = { | ||
| 243 | .name = "multiply", | ||
| 244 | .description = NULL_IF_CONFIG_SMALL("Multiply first video stream with second video stream."), | ||
| 245 | .priv_class = &multiply_class, | ||
| 246 | .priv_size = sizeof(MultiplyContext), | ||
| 247 | .uninit = uninit, | ||
| 248 | .activate = activate, | ||
| 249 | FILTER_INPUTS(multiply_inputs), | ||
| 250 | FILTER_OUTPUTS(multiply_outputs), | ||
| 251 | FILTER_PIXFMTS_ARRAY(pix_fmts), | ||
| 252 | .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, | ||
| 253 | .process_command = ff_filter_process_command, | ||
| 254 | }; | ||
| 255 |