File size: 15,998 Bytes
8ead80b |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 |
/*
* Copyright (c) 2016 Paul B Mahol
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "internal.h"
#include "video.h"
typedef struct AverageBlurContext {
const AVClass *class;
int radius;
int radiusV;
int planes;
int depth;
int max;
int area;
int planewidth[4];
int planeheight[4];
void *buffer;
uint16_t lut[256 * 256 * 256];
int nb_planes;
int (*filter[2])(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
} AverageBlurContext;
#define OFFSET(x) offsetof(AverageBlurContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
static const AVOption avgblur_options[] = {
{ "sizeX", "set horizontal size", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=1}, 1, 1024, FLAGS },
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
{ "sizeY", "set vertical size", OFFSET(radiusV), AV_OPT_TYPE_INT, {.i64=0}, 0, 1024, FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(avgblur);
typedef struct ThreadData {
int height;
int width;
const void *ptr;
void *dptr;
int linesize, dlinesize;
} ThreadData;
#define LUT_DIV(sum, area) (lut[(sum)])
#define SLOW_DIV(sum, area) ((sum) / (area))
#define FILTER(name, type, btype, lutunused, areaunused, lutdiv) \
static int filter_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
{ \
AverageBlurContext *s = ctx->priv; \
ThreadData *td = arg; \
areaunused const int area = s->area; \
lutunused const uint16_t *lut = s->lut; \
const int size_w = s->radius; \
const int size_h = s->radiusV; \
btype *col_sum = (btype *)s->buffer + size_w; \
const int dlinesize = td->dlinesize / sizeof(type); \
const int linesize = td->linesize / sizeof(type); \
const int height = td->height; \
const int width = td->width; \
const type *src = td->ptr; \
type *dst = td->dptr; \
btype sum = 0; \
\
for (int x = -size_w; x < 0; x++) { \
sum = src[0] * size_h; \
for (int y = 0; y <= size_h; y++) \
sum += src[y * linesize]; \
av_assert2(sum >= 0); \
col_sum[x] = sum; \
} \
\
for (int x = 0; x < width; x++) { \
sum = src[x] * size_h; \
for (int y = 0; y <= size_h; y++) \
sum += src[x + y * linesize]; \
av_assert2(sum >= 0); \
col_sum[x] = sum; \
} \
\
for (int x = width; x < width + size_w; x++) { \
sum = src[width - 1] * size_h; \
for (int y = 0; y <= size_h; y++) \
sum += src[width - 1 + y * linesize]; \
av_assert2(sum >= 0); \
col_sum[x] = sum; \
} \
\
sum = 0; \
for (int x = -size_w; x <= size_w; x++) \
sum += col_sum[x]; \
av_assert2(sum >= 0); \
dst[0] = lutdiv(sum, area); \
\
for (int x = 1; x < width; x++) { \
sum = sum - col_sum[x - size_w - 1] + col_sum[x + size_w]; \
av_assert2(sum >= 0); \
dst[x] = lutdiv(sum, area); \
} \
\
src = td->ptr; \
src += linesize; \
dst += dlinesize; \
\
for (int y = 1; y < height; y++) { \
const int syp = FFMIN(size_h, height - y - 1) * linesize; \
const int syn = FFMIN(y, size_h + 1) * linesize; \
\
sum = 0; \
\
for (int x = -size_w; x < 0; x++) \
col_sum[x] += src[0 + syp] - src[0 - syn]; \
\
for (int x = 0; x < width; x++) \
col_sum[x] += src[x + syp] - src[x - syn]; \
\
for (int x = width; x < width + size_w; x++) \
col_sum[x] += src[width - 1 + syp] - src[width - 1 - syn]; \
\
for (int x = -size_w; x <= size_w; x++) \
sum += col_sum[x]; \
av_assert2(sum >= 0); \
dst[0] = lutdiv(sum, area); \
\
for (int x = 1; x < width; x++) { \
sum = sum - col_sum[x - size_w - 1] + col_sum[x + size_w]; \
av_assert2(sum >= 0); \
dst[x] = lutdiv(sum, area); \
} \
\
src += linesize; \
dst += dlinesize; \
} \
\
return 0; \
}
FILTER(lut8, uint8_t, int32_t, , av_unused, LUT_DIV)
FILTER(lut16, uint16_t, int64_t, , av_unused, LUT_DIV)
FILTER(slow8, uint8_t, int32_t, av_unused, , SLOW_DIV)
FILTER(slow16, uint16_t, int64_t, av_unused, , SLOW_DIV)
static void build_lut(AVFilterContext *ctx, int max)
{
AverageBlurContext *s = ctx->priv;
const int area = (2 * s->radiusV + 1) * (2 * s->radius + 1);
s->area = area;
if (max * area >= FF_ARRAY_ELEMS(s->lut))
return;
for (int i = 0, j = 0, k = 0; i < max * area; i++, j++) {
if (j == area) {
k++;
j = 0;
}
s->lut[i] = k;
}
}
static av_cold void uninit(AVFilterContext *ctx)
{
AverageBlurContext *s = ctx->priv;
av_freep(&s->buffer);
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
AverageBlurContext *s = ctx->priv;
uninit(ctx);
s->depth = desc->comp[0].depth;
s->max = 1 << s->depth;
s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
s->planewidth[0] = s->planewidth[3] = inlink->w;
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
s->planeheight[0] = s->planeheight[3] = inlink->h;
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
s->buffer = av_calloc(inlink->w + (1024 * 2 + 1), 4 * ((s->depth + 7) / 8));
if (!s->buffer)
return AVERROR(ENOMEM);
if (s->radiusV <= 0)
s->radiusV = s->radius;
s->filter[0] = s->depth <= 8 ? filter_lut8 : filter_lut16;
s->filter[1] = s->depth <= 8 ? filter_slow8 : filter_slow16;
s->radius = FFMIN(s->planewidth[1] / 2, s->radius);
s->radiusV = FFMIN(s->planeheight[1] / 2, s->radiusV);
build_lut(ctx, s->max);
return 0;
}
static void averageiir2d(AVFilterContext *ctx, AVFrame *in, AVFrame *out, int plane)
{
AverageBlurContext *s = ctx->priv;
const int width = s->planewidth[plane];
const int height = s->planeheight[plane];
const int slow = (s->max * s->area) >= FF_ARRAY_ELEMS(s->lut);
ThreadData td;
td.width = width;
td.height = height;
td.ptr = in->data[plane];
td.linesize = in->linesize[plane];
td.dptr = out->data[plane];
td.dlinesize = out->linesize[plane];
s->filter[slow](ctx, &td, 0, 0);
}
static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
AV_PIX_FMT_NONE
};
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
AverageBlurContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out;
int plane;
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
av_frame_free(&in);
return AVERROR(ENOMEM);
}
av_frame_copy_props(out, in);
for (plane = 0; plane < s->nb_planes; plane++) {
const int height = s->planeheight[plane];
const int width = s->planewidth[plane];
if (!(s->planes & (1 << plane))) {
if (out != in)
av_image_copy_plane(out->data[plane], out->linesize[plane],
in->data[plane], in->linesize[plane],
width * ((s->depth + 7) / 8), height);
continue;
}
averageiir2d(ctx, in, out, plane);
}
av_frame_free(&in);
return ff_filter_frame(outlink, out);
}
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
char *res, int res_len, int flags)
{
AverageBlurContext *s = ctx->priv;
const int area = s->area;
int ret;
ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
if (ret < 0)
return ret;
if (s->radiusV <= 0)
s->radiusV = s->radius;
s->radius = FFMIN(s->planewidth[1] / 2, s->radius);
s->radiusV = FFMIN(s->planeheight[1] / 2, s->radiusV);
if (area != (2 * s->radiusV + 1) * (2 * s->radius + 1))
build_lut(ctx, s->max);
return 0;
}
static const AVFilterPad avgblur_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_input,
.filter_frame = filter_frame,
},
};
const AVFilter ff_vf_avgblur = {
.name = "avgblur",
.description = NULL_IF_CONFIG_SMALL("Apply Average Blur filter."),
.priv_size = sizeof(AverageBlurContext),
.priv_class = &avgblur_class,
.uninit = uninit,
FILTER_INPUTS(avgblur_inputs),
FILTER_OUTPUTS(ff_video_default_filterpad),
FILTER_PIXFMTS_ARRAY(pix_fmts),
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
.process_command = process_command,
};
|