| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2011 Pascal Getreuer | ||
| 3 | * Copyright (c) 2016 Paul B Mahol | ||
| 4 | * | ||
| 5 | * Redistribution and use in source and binary forms, with or without modification, | ||
| 6 | * are permitted provided that the following conditions are met: | ||
| 7 | * | ||
| 8 | * * Redistributions of source code must retain the above copyright | ||
| 9 | * notice, this list of conditions and the following disclaimer. | ||
| 10 | * * Redistributions in binary form must reproduce the above | ||
| 11 | * copyright notice, this list of conditions and the following | ||
| 12 | * disclaimer in the documentation and/or other materials provided | ||
| 13 | * with the distribution. | ||
| 14 | * | ||
| 15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| 16 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| 17 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| 18 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| 19 | * HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
| 22 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
| 23 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
| 24 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| 25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 26 | */ | ||
| 27 | |||
| 28 | #include <float.h> | ||
| 29 | |||
| 30 | #include "libavutil/imgutils.h" | ||
| 31 | #include "libavutil/mem.h" | ||
| 32 | #include "libavutil/opt.h" | ||
| 33 | #include "libavutil/pixdesc.h" | ||
| 34 | #include "avfilter.h" | ||
| 35 | #include "gblur.h" | ||
| 36 | #include "internal.h" | ||
| 37 | #include "vf_gblur_init.h" | ||
| 38 | #include "video.h" | ||
| 39 | |||
| 40 | #define OFFSET(x) offsetof(GBlurContext, x) | ||
| 41 | #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM | ||
| 42 | |||
| 43 | static const AVOption gblur_options[] = { | ||
| 44 | { "sigma", "set sigma", OFFSET(sigma), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0.0, 1024, FLAGS }, | ||
| 45 | { "steps", "set number of steps", OFFSET(steps), AV_OPT_TYPE_INT, {.i64=1}, 1, 6, FLAGS }, | ||
| 46 | { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS }, | ||
| 47 | { "sigmaV", "set vertical sigma", OFFSET(sigmaV), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 1024, FLAGS }, | ||
| 48 | { NULL } | ||
| 49 | }; | ||
| 50 | |||
| 51 | AVFILTER_DEFINE_CLASS(gblur); | ||
| 52 | |||
| 53 | typedef struct ThreadData { | ||
| 54 | int height; | ||
| 55 | int width; | ||
| 56 | } ThreadData; | ||
| 57 | |||
| 58 | ✗ | static int filter_horizontally(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) | |
| 59 | { | ||
| 60 | ✗ | GBlurContext *s = ctx->priv; | |
| 61 | ✗ | ThreadData *td = arg; | |
| 62 | ✗ | const int height = td->height; | |
| 63 | ✗ | const int width = td->width; | |
| 64 | ✗ | const int slice_start = (height * jobnr ) / nb_jobs; | |
| 65 | ✗ | const int slice_end = (height * (jobnr+1)) / nb_jobs; | |
| 66 | ✗ | const float boundaryscale = s->boundaryscale; | |
| 67 | ✗ | const int steps = s->steps; | |
| 68 | ✗ | const float nu = s->nu; | |
| 69 | ✗ | float *buffer = s->buffer; | |
| 70 | ✗ | float *localbuf = NULL; | |
| 71 | |||
| 72 | ✗ | if (s->localbuf) | |
| 73 | ✗ | localbuf = s->localbuf + s->stride * width * slice_start; | |
| 74 | |||
| 75 | ✗ | s->horiz_slice(buffer + width * slice_start, width, slice_end - slice_start, | |
| 76 | steps, nu, boundaryscale, localbuf); | ||
| 77 | ✗ | return 0; | |
| 78 | } | ||
| 79 | |||
| 80 | ✗ | static int filter_vertically(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) | |
| 81 | { | ||
| 82 | ✗ | GBlurContext *s = ctx->priv; | |
| 83 | ✗ | ThreadData *td = arg; | |
| 84 | ✗ | const int height = td->height; | |
| 85 | ✗ | const int width = td->width; | |
| 86 | ✗ | const int slice_start = (width * jobnr ) / nb_jobs; | |
| 87 | ✗ | const int slice_end = (width * (jobnr+1)) / nb_jobs; | |
| 88 | ✗ | const float boundaryscale = s->boundaryscaleV; | |
| 89 | ✗ | const int steps = s->steps; | |
| 90 | ✗ | const float nu = s->nuV; | |
| 91 | ✗ | float *buffer = s->buffer; | |
| 92 | |||
| 93 | ✗ | s->verti_slice(buffer, width, height, slice_start, slice_end, | |
| 94 | steps, nu, boundaryscale); | ||
| 95 | |||
| 96 | ✗ | return 0; | |
| 97 | } | ||
| 98 | |||
| 99 | ✗ | static int filter_postscale(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) | |
| 100 | { | ||
| 101 | ✗ | GBlurContext *s = ctx->priv; | |
| 102 | ✗ | ThreadData *td = arg; | |
| 103 | ✗ | const float max = s->flt ? FLT_MAX : (1 << s->depth) - 1; | |
| 104 | ✗ | const float min = s->flt ? -FLT_MAX : 0.f; | |
| 105 | ✗ | const int height = td->height; | |
| 106 | ✗ | const int width = td->width; | |
| 107 | ✗ | const int awidth = FFALIGN(width, 64); | |
| 108 | ✗ | const int slice_start = (height * jobnr ) / nb_jobs; | |
| 109 | ✗ | const int slice_end = (height * (jobnr+1)) / nb_jobs; | |
| 110 | ✗ | const float postscale = s->postscale * s->postscaleV; | |
| 111 | ✗ | const int slice_size = slice_end - slice_start; | |
| 112 | |||
| 113 | ✗ | s->postscale_slice(s->buffer + slice_start * awidth, | |
| 114 | slice_size * awidth, postscale, min, max); | ||
| 115 | |||
| 116 | ✗ | return 0; | |
| 117 | } | ||
| 118 | |||
| 119 | ✗ | static void gaussianiir2d(AVFilterContext *ctx, int plane) | |
| 120 | { | ||
| 121 | ✗ | GBlurContext *s = ctx->priv; | |
| 122 | ✗ | const int width = s->planewidth[plane]; | |
| 123 | ✗ | const int height = s->planeheight[plane]; | |
| 124 | ✗ | const int nb_threads = ff_filter_get_nb_threads(ctx); | |
| 125 | ThreadData td; | ||
| 126 | |||
| 127 | ✗ | if (s->sigma < 0 || s->steps < 0) | |
| 128 | ✗ | return; | |
| 129 | |||
| 130 | ✗ | td.width = width; | |
| 131 | ✗ | td.height = height; | |
| 132 | ✗ | ff_filter_execute(ctx, filter_horizontally, &td, | |
| 133 | ✗ | NULL, FFMIN(height, nb_threads)); | |
| 134 | ✗ | ff_filter_execute(ctx, filter_vertically, &td, | |
| 135 | ✗ | NULL, FFMIN(width, nb_threads)); | |
| 136 | ✗ | ff_filter_execute(ctx, filter_postscale, &td, | |
| 137 | ✗ | NULL, FFMIN(width * height, nb_threads)); | |
| 138 | } | ||
| 139 | |||
| 140 | static const enum AVPixelFormat pix_fmts[] = { | ||
| 141 | AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, | ||
| 142 | AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, | ||
| 143 | AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P, | ||
| 144 | AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, | ||
| 145 | AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, | ||
| 146 | AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, | ||
| 147 | AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, | ||
| 148 | AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, | ||
| 149 | AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, | ||
| 150 | AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, | ||
| 151 | AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, | ||
| 152 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, | ||
| 153 | AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, | ||
| 154 | AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, | ||
| 155 | AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, | ||
| 156 | AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16, | ||
| 157 | AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16, | ||
| 158 | AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16, | ||
| 159 | AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32, | ||
| 160 | AV_PIX_FMT_GRAYF32, | ||
| 161 | AV_PIX_FMT_NONE | ||
| 162 | }; | ||
| 163 | |||
| 164 | ✗ | static av_cold void uninit(AVFilterContext *ctx) | |
| 165 | { | ||
| 166 | ✗ | GBlurContext *s = ctx->priv; | |
| 167 | |||
| 168 | ✗ | av_freep(&s->buffer); | |
| 169 | ✗ | av_freep(&s->localbuf); | |
| 170 | ✗ | } | |
| 171 | |||
| 172 | ✗ | static int config_input(AVFilterLink *inlink) | |
| 173 | { | ||
| 174 | ✗ | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); | |
| 175 | ✗ | GBlurContext *s = inlink->dst->priv; | |
| 176 | |||
| 177 | ✗ | uninit(inlink->dst); | |
| 178 | |||
| 179 | ✗ | s->depth = desc->comp[0].depth; | |
| 180 | ✗ | s->flt = !!(desc->flags & AV_PIX_FMT_FLAG_FLOAT); | |
| 181 | ✗ | s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w); | |
| 182 | ✗ | s->planewidth[0] = s->planewidth[3] = inlink->w; | |
| 183 | ✗ | s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h); | |
| 184 | ✗ | s->planeheight[0] = s->planeheight[3] = inlink->h; | |
| 185 | |||
| 186 | ✗ | s->nb_planes = av_pix_fmt_count_planes(inlink->format); | |
| 187 | |||
| 188 | ✗ | s->buffer = av_malloc_array(FFALIGN(inlink->w, 64), FFALIGN(inlink->h, 64) * sizeof(*s->buffer)); | |
| 189 | ✗ | if (!s->buffer) | |
| 190 | ✗ | return AVERROR(ENOMEM); | |
| 191 | |||
| 192 | ✗ | if (s->sigmaV < 0) { | |
| 193 | ✗ | s->sigmaV = s->sigma; | |
| 194 | } | ||
| 195 | ✗ | ff_gblur_init(s); | |
| 196 | |||
| 197 | ✗ | return 0; | |
| 198 | } | ||
| 199 | |||
| 200 | ✗ | static void set_params(float sigma, int steps, float *postscale, float *boundaryscale, float *nu) | |
| 201 | { | ||
| 202 | double dnu, lambda; | ||
| 203 | |||
| 204 | ✗ | lambda = (sigma * sigma) / (2.0 * steps); | |
| 205 | ✗ | dnu = (1.0 + 2.0 * lambda - sqrt(1.0 + 4.0 * lambda)) / (2.0 * lambda); | |
| 206 | ✗ | *postscale = pow(dnu / lambda, steps); | |
| 207 | ✗ | *boundaryscale = 1.0 / (1.0 - dnu); | |
| 208 | ✗ | *nu = (float)dnu; | |
| 209 | ✗ | if (!isnormal(*postscale)) | |
| 210 | ✗ | *postscale = 1.f; | |
| 211 | ✗ | if (!isnormal(*boundaryscale)) | |
| 212 | ✗ | *boundaryscale = 1.f; | |
| 213 | ✗ | if (!isnormal(*nu)) | |
| 214 | ✗ | *nu = 0.f; | |
| 215 | ✗ | } | |
| 216 | |||
| 217 | ✗ | static int filter_frame(AVFilterLink *inlink, AVFrame *in) | |
| 218 | { | ||
| 219 | ✗ | AVFilterContext *ctx = inlink->dst; | |
| 220 | ✗ | GBlurContext *s = ctx->priv; | |
| 221 | ✗ | AVFilterLink *outlink = ctx->outputs[0]; | |
| 222 | AVFrame *out; | ||
| 223 | int plane; | ||
| 224 | |||
| 225 | ✗ | set_params(s->sigma, s->steps, &s->postscale, &s->boundaryscale, &s->nu); | |
| 226 | ✗ | set_params(s->sigmaV, s->steps, &s->postscaleV, &s->boundaryscaleV, &s->nuV); | |
| 227 | |||
| 228 | ✗ | if (av_frame_is_writable(in)) { | |
| 229 | ✗ | out = in; | |
| 230 | } else { | ||
| 231 | ✗ | out = ff_get_video_buffer(outlink, outlink->w, outlink->h); | |
| 232 | ✗ | if (!out) { | |
| 233 | ✗ | av_frame_free(&in); | |
| 234 | ✗ | return AVERROR(ENOMEM); | |
| 235 | } | ||
| 236 | ✗ | av_frame_copy_props(out, in); | |
| 237 | } | ||
| 238 | |||
| 239 | ✗ | for (plane = 0; plane < s->nb_planes; plane++) { | |
| 240 | ✗ | const int height = s->planeheight[plane]; | |
| 241 | ✗ | const int width = s->planewidth[plane]; | |
| 242 | ✗ | float *bptr = s->buffer; | |
| 243 | ✗ | const uint8_t *src = in->data[plane]; | |
| 244 | ✗ | const uint16_t *src16 = (const uint16_t *)in->data[plane]; | |
| 245 | ✗ | uint8_t *dst = out->data[plane]; | |
| 246 | ✗ | uint16_t *dst16 = (uint16_t *)out->data[plane]; | |
| 247 | int y, x; | ||
| 248 | |||
| 249 | ✗ | if (!(s->planes & (1 << plane))) { | |
| 250 | ✗ | if (out != in) | |
| 251 | ✗ | av_image_copy_plane(out->data[plane], out->linesize[plane], | |
| 252 | ✗ | in->data[plane], in->linesize[plane], | |
| 253 | ✗ | width * ((s->depth + 7) / 8), height); | |
| 254 | ✗ | continue; | |
| 255 | } | ||
| 256 | |||
| 257 | ✗ | if (s->flt) { | |
| 258 | ✗ | av_image_copy_plane((uint8_t *)bptr, width * sizeof(float), | |
| 259 | ✗ | in->data[plane], in->linesize[plane], | |
| 260 | width * sizeof(float), height); | ||
| 261 | ✗ | } else if (s->depth == 8) { | |
| 262 | ✗ | for (y = 0; y < height; y++) { | |
| 263 | ✗ | for (x = 0; x < width; x++) { | |
| 264 | ✗ | bptr[x] = src[x]; | |
| 265 | } | ||
| 266 | ✗ | bptr += width; | |
| 267 | ✗ | src += in->linesize[plane]; | |
| 268 | } | ||
| 269 | } else { | ||
| 270 | ✗ | for (y = 0; y < height; y++) { | |
| 271 | ✗ | for (x = 0; x < width; x++) { | |
| 272 | ✗ | bptr[x] = src16[x]; | |
| 273 | } | ||
| 274 | ✗ | bptr += width; | |
| 275 | ✗ | src16 += in->linesize[plane] / 2; | |
| 276 | } | ||
| 277 | } | ||
| 278 | |||
| 279 | ✗ | gaussianiir2d(ctx, plane); | |
| 280 | |||
| 281 | ✗ | bptr = s->buffer; | |
| 282 | ✗ | if (s->flt) { | |
| 283 | ✗ | av_image_copy_plane(out->data[plane], out->linesize[plane], | |
| 284 | (uint8_t *)bptr, width * sizeof(float), | ||
| 285 | width * sizeof(float), height); | ||
| 286 | ✗ | } else if (s->depth == 8) { | |
| 287 | ✗ | for (y = 0; y < height; y++) { | |
| 288 | ✗ | for (x = 0; x < width; x++) | |
| 289 | ✗ | dst[x] = lrintf(bptr[x]); | |
| 290 | ✗ | bptr += width; | |
| 291 | ✗ | dst += out->linesize[plane]; | |
| 292 | } | ||
| 293 | } else { | ||
| 294 | ✗ | for (y = 0; y < height; y++) { | |
| 295 | ✗ | for (x = 0; x < width; x++) | |
| 296 | ✗ | dst16[x] = lrintf(bptr[x]); | |
| 297 | ✗ | bptr += width; | |
| 298 | ✗ | dst16 += out->linesize[plane] / 2; | |
| 299 | } | ||
| 300 | } | ||
| 301 | } | ||
| 302 | |||
| 303 | ✗ | if (out != in) | |
| 304 | ✗ | av_frame_free(&in); | |
| 305 | ✗ | return ff_filter_frame(outlink, out); | |
| 306 | } | ||
| 307 | |||
| 308 | static const AVFilterPad gblur_inputs[] = { | ||
| 309 | { | ||
| 310 | .name = "default", | ||
| 311 | .type = AVMEDIA_TYPE_VIDEO, | ||
| 312 | .config_props = config_input, | ||
| 313 | .filter_frame = filter_frame, | ||
| 314 | }, | ||
| 315 | }; | ||
| 316 | |||
| 317 | const AVFilter ff_vf_gblur = { | ||
| 318 | .name = "gblur", | ||
| 319 | .description = NULL_IF_CONFIG_SMALL("Apply Gaussian Blur filter."), | ||
| 320 | .priv_size = sizeof(GBlurContext), | ||
| 321 | .priv_class = &gblur_class, | ||
| 322 | .uninit = uninit, | ||
| 323 | FILTER_INPUTS(gblur_inputs), | ||
| 324 | FILTER_OUTPUTS(ff_video_default_filterpad), | ||
| 325 | FILTER_PIXFMTS_ARRAY(pix_fmts), | ||
| 326 | .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, | ||
| 327 | .process_command = ff_filter_process_command, | ||
| 328 | }; | ||
| 329 |