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path: root/libavfilter/vf_maskedclamp.c (plain)
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1/*
2 * Copyright (c) 2016 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 "formats.h"
26#include "internal.h"
27#include "video.h"
28#include "framesync.h"
29
30#define OFFSET(x) offsetof(MaskedClampContext, x)
31#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
32
33typedef struct MaskedClampContext {
34 const AVClass *class;
35
36 int planes;
37 int undershoot;
38 int overshoot;
39
40 int width[4], height[4];
41 int nb_planes;
42 int depth;
43 FFFrameSync fs;
44
45 void (*maskedclamp)(const uint8_t *bsrc, const uint8_t *osrc,
46 const uint8_t *msrc, uint8_t *dst,
47 ptrdiff_t blinesize, ptrdiff_t darklinesize,
48 ptrdiff_t brightlinesize, ptrdiff_t destlinesize,
49 int w, int h, int undershoot, int overshoot);
50} MaskedClampContext;
51
52static const AVOption maskedclamp_options[] = {
53 { "undershoot", "set undershoot", OFFSET(undershoot), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
54 { "overshoot", "set overshoot", OFFSET(overshoot), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
55 { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
56 { NULL }
57};
58
59AVFILTER_DEFINE_CLASS(maskedclamp);
60
61static int query_formats(AVFilterContext *ctx)
62{
63 static const enum AVPixelFormat pix_fmts[] = {
64 AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
65 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
66 AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
67 AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
68 AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
69 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
70 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
71 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
72 AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
73 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
74 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
75 AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
76 AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
77 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
78 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
79 AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
80 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY16,
81 AV_PIX_FMT_NONE
82 };
83
84 return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
85}
86
87static int process_frame(FFFrameSync *fs)
88{
89 AVFilterContext *ctx = fs->parent;
90 MaskedClampContext *s = fs->opaque;
91 AVFilterLink *outlink = ctx->outputs[0];
92 AVFrame *out, *base, *dark, *bright;
93 int ret;
94
95 if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
96 (ret = ff_framesync_get_frame(&s->fs, 1, &dark, 0)) < 0 ||
97 (ret = ff_framesync_get_frame(&s->fs, 2, &bright, 0)) < 0)
98 return ret;
99
100 if (ctx->is_disabled) {
101 out = av_frame_clone(base);
102 if (!out)
103 return AVERROR(ENOMEM);
104 } else {
105 int p;
106
107 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
108 if (!out)
109 return AVERROR(ENOMEM);
110 av_frame_copy_props(out, base);
111
112 for (p = 0; p < s->nb_planes; p++) {
113 if (!((1 << p) & s->planes)) {
114 av_image_copy_plane(out->data[p], out->linesize[p], base->data[p], base->linesize[p],
115 s->width[p], s->height[p]);
116 continue;
117 }
118
119 s->maskedclamp(base->data[p], dark->data[p],
120 bright->data[p], out->data[p],
121 base->linesize[p], dark->linesize[p],
122 bright->linesize[p], out->linesize[p],
123 s->width[p], s->height[p],
124 s->undershoot, s->overshoot);
125 }
126 }
127 out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
128
129 return ff_filter_frame(outlink, out);
130}
131
132static void maskedclamp8(const uint8_t *bsrc, const uint8_t *darksrc,
133 const uint8_t *brightsrc, uint8_t *dst,
134 ptrdiff_t blinesize, ptrdiff_t darklinesize,
135 ptrdiff_t brightlinesize, ptrdiff_t dlinesize,
136 int w, int h,
137 int undershoot, int overshoot)
138{
139 int x, y;
140
141 for (y = 0; y < h; y++) {
142 for (x = 0; x < w; x++) {
143 if (bsrc[x] < darksrc[x] - undershoot)
144 dst[x] = darksrc[x] - undershoot;
145 else if (bsrc[x] > brightsrc[x] + overshoot)
146 dst[x] = brightsrc[x] + overshoot;
147 else
148 dst[x] = bsrc[x];
149 }
150
151 dst += dlinesize;
152 bsrc += blinesize;
153 darksrc += darklinesize;
154 brightsrc += brightlinesize;
155 }
156}
157
158static void maskedclamp16(const uint8_t *bbsrc, const uint8_t *oosrc,
159 const uint8_t *mmsrc, uint8_t *ddst,
160 ptrdiff_t blinesize, ptrdiff_t darklinesize,
161 ptrdiff_t brightlinesize, ptrdiff_t dlinesize,
162 int w, int h,
163 int undershoot, int overshoot)
164{
165 const uint16_t *bsrc = (const uint16_t *)bbsrc;
166 const uint16_t *darksrc = (const uint16_t *)oosrc;
167 const uint16_t *brightsrc = (const uint16_t *)mmsrc;
168 uint16_t *dst = (uint16_t *)ddst;
169 int x, y;
170
171 dlinesize /= 2;
172 blinesize /= 2;
173 darklinesize /= 2;
174 brightlinesize /= 2;
175
176 for (y = 0; y < h; y++) {
177 for (x = 0; x < w; x++) {
178 if (bsrc[x] < darksrc[x] - undershoot)
179 dst[x] = darksrc[x] - undershoot;
180 else if (bsrc[x] > brightsrc[x] + overshoot)
181 dst[x] = brightsrc[x] + overshoot;
182 else
183 dst[x] = bsrc[x];
184 }
185
186 dst += dlinesize;
187 bsrc += blinesize;
188 darksrc += darklinesize;
189 brightsrc += brightlinesize;
190 }
191}
192
193static int config_input(AVFilterLink *inlink)
194{
195 AVFilterContext *ctx = inlink->dst;
196 MaskedClampContext *s = ctx->priv;
197 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
198 int vsub, hsub;
199
200 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
201
202 hsub = desc->log2_chroma_w;
203 vsub = desc->log2_chroma_h;
204 s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
205 s->height[0] = s->height[3] = inlink->h;
206 s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
207 s->width[0] = s->width[3] = inlink->w;
208
209 s->depth = desc->comp[0].depth;
210
211 if (desc->comp[0].depth == 8)
212 s->maskedclamp = maskedclamp8;
213 else
214 s->maskedclamp = maskedclamp16;
215
216 return 0;
217}
218
219static int config_output(AVFilterLink *outlink)
220{
221 AVFilterContext *ctx = outlink->src;
222 MaskedClampContext *s = ctx->priv;
223 AVFilterLink *base = ctx->inputs[0];
224 AVFilterLink *dark = ctx->inputs[1];
225 AVFilterLink *bright = ctx->inputs[2];
226 FFFrameSyncIn *in;
227 int ret;
228
229 if (base->format != dark->format ||
230 base->format != bright->format) {
231 av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
232 return AVERROR(EINVAL);
233 }
234 if (base->w != dark->w ||
235 base->h != dark->h ||
236 base->sample_aspect_ratio.num != dark->sample_aspect_ratio.num ||
237 base->sample_aspect_ratio.den != dark->sample_aspect_ratio.den ||
238 base->w != bright->w ||
239 base->h != bright->h ||
240 base->sample_aspect_ratio.num != bright->sample_aspect_ratio.num ||
241 base->sample_aspect_ratio.den != bright->sample_aspect_ratio.den) {
242 av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
243 "(size %dx%d, SAR %d:%d) do not match the corresponding "
244 "second input link %s parameters (%dx%d, SAR %d:%d) "
245 "and/or third input link %s parameters (%dx%d, SAR %d:%d)\n",
246 ctx->input_pads[0].name, base->w, base->h,
247 base->sample_aspect_ratio.num,
248 base->sample_aspect_ratio.den,
249 ctx->input_pads[1].name, dark->w, dark->h,
250 dark->sample_aspect_ratio.num,
251 dark->sample_aspect_ratio.den,
252 ctx->input_pads[2].name, bright->w, bright->h,
253 bright->sample_aspect_ratio.num,
254 bright->sample_aspect_ratio.den);
255 return AVERROR(EINVAL);
256 }
257
258 outlink->w = base->w;
259 outlink->h = base->h;
260 outlink->time_base = base->time_base;
261 outlink->sample_aspect_ratio = base->sample_aspect_ratio;
262 outlink->frame_rate = base->frame_rate;
263
264 if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
265 return ret;
266
267 in = s->fs.in;
268 in[0].time_base = base->time_base;
269 in[1].time_base = dark->time_base;
270 in[2].time_base = bright->time_base;
271 in[0].sync = 1;
272 in[0].before = EXT_STOP;
273 in[0].after = EXT_INFINITY;
274 in[1].sync = 1;
275 in[1].before = EXT_STOP;
276 in[1].after = EXT_INFINITY;
277 in[2].sync = 1;
278 in[2].before = EXT_STOP;
279 in[2].after = EXT_INFINITY;
280 s->fs.opaque = s;
281 s->fs.on_event = process_frame;
282
283 return ff_framesync_configure(&s->fs);
284}
285
286static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
287{
288 MaskedClampContext *s = inlink->dst->priv;
289 return ff_framesync_filter_frame(&s->fs, inlink, buf);
290}
291
292static int request_frame(AVFilterLink *outlink)
293{
294 MaskedClampContext *s = outlink->src->priv;
295 return ff_framesync_request_frame(&s->fs, outlink);
296}
297
298static av_cold void uninit(AVFilterContext *ctx)
299{
300 MaskedClampContext *s = ctx->priv;
301
302 ff_framesync_uninit(&s->fs);
303}
304
305static const AVFilterPad maskedclamp_inputs[] = {
306 {
307 .name = "base",
308 .type = AVMEDIA_TYPE_VIDEO,
309 .filter_frame = filter_frame,
310 .config_props = config_input,
311 },
312 {
313 .name = "dark",
314 .type = AVMEDIA_TYPE_VIDEO,
315 .filter_frame = filter_frame,
316 },
317 {
318 .name = "bright",
319 .type = AVMEDIA_TYPE_VIDEO,
320 .filter_frame = filter_frame,
321 },
322 { NULL }
323};
324
325static const AVFilterPad maskedclamp_outputs[] = {
326 {
327 .name = "default",
328 .type = AVMEDIA_TYPE_VIDEO,
329 .config_props = config_output,
330 .request_frame = request_frame,
331 },
332 { NULL }
333};
334
335AVFilter ff_vf_maskedclamp = {
336 .name = "maskedclamp",
337 .description = NULL_IF_CONFIG_SMALL("Clamp first stream with second stream and third stream."),
338 .priv_size = sizeof(MaskedClampContext),
339 .uninit = uninit,
340 .query_formats = query_formats,
341 .inputs = maskedclamp_inputs,
342 .outputs = maskedclamp_outputs,
343 .priv_class = &maskedclamp_class,
344 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
345};
346
generated by cgit at 2024-05-17 06:57:24 (GMT)