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 #include "maskedclamp.h"
30
31 #define OFFSET(x) offsetof(MaskedClampContext, x)
32 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
33
34 typedef struct ThreadData {
35 AVFrame *b, *o, *m, *d;
36 } ThreadData;
37
38 typedef struct MaskedClampContext {
39 const AVClass *class;
40
41 int planes;
42 int undershoot;
43 int overshoot;
44
45 int linesize[4];
46 int width[4], height[4];
47 int nb_planes;
48 int depth;
49 FFFrameSync fs;
50
51 MaskedClampDSPContext dsp;
52 } MaskedClampContext;
53
54 static const AVOption maskedclamp_options[] = {
55 { "undershoot", "set undershoot", OFFSET(undershoot), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
56 { "overshoot", "set overshoot", OFFSET(overshoot), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
57 { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
58 { NULL }
59 };
60
61 AVFILTER_DEFINE_CLASS(maskedclamp);
62
query_formats(AVFilterContext * ctx)63 static int query_formats(AVFilterContext *ctx)
64 {
65 static const enum AVPixelFormat pix_fmts[] = {
66 AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
67 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
68 AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
69 AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
70 AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
71 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
72 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
73 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
74 AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
75 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
76 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
77 AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
78 AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
79 AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
80 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
81 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
82 AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
83 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
84 AV_PIX_FMT_NONE
85 };
86
87 return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
88 }
89
maskedclamp_slice(AVFilterContext * ctx,void * arg,int jobnr,int nb_jobs)90 static int maskedclamp_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
91 {
92 MaskedClampContext *s = ctx->priv;
93 ThreadData *td = arg;
94 int p;
95
96 for (p = 0; p < s->nb_planes; p++) {
97 const ptrdiff_t blinesize = td->b->linesize[p];
98 const ptrdiff_t brightlinesize = td->m->linesize[p];
99 const ptrdiff_t darklinesize = td->o->linesize[p];
100 const ptrdiff_t dlinesize = td->d->linesize[p];
101 const int w = s->width[p];
102 const int h = s->height[p];
103 const int slice_start = (h * jobnr) / nb_jobs;
104 const int slice_end = (h * (jobnr+1)) / nb_jobs;
105 const uint8_t *bsrc = td->b->data[p] + slice_start * blinesize;
106 const uint8_t *darksrc = td->o->data[p] + slice_start * darklinesize;
107 const uint8_t *brightsrc = td->m->data[p] + slice_start * brightlinesize;
108 uint8_t *dst = td->d->data[p] + slice_start * dlinesize;
109 const int undershoot = s->undershoot;
110 const int overshoot = s->overshoot;
111 int y;
112
113 if (!((1 << p) & s->planes)) {
114 av_image_copy_plane(dst, dlinesize, bsrc, blinesize,
115 s->linesize[p], slice_end - slice_start);
116 continue;
117 }
118
119 for (y = slice_start; y < slice_end; y++) {
120 s->dsp.maskedclamp(bsrc, dst, darksrc, brightsrc, w, undershoot, overshoot);
121
122 dst += dlinesize;
123 bsrc += blinesize;
124 darksrc += darklinesize;
125 brightsrc += brightlinesize;
126 }
127 }
128
129 return 0;
130 }
131
process_frame(FFFrameSync * fs)132 static int process_frame(FFFrameSync *fs)
133 {
134 AVFilterContext *ctx = fs->parent;
135 MaskedClampContext *s = fs->opaque;
136 AVFilterLink *outlink = ctx->outputs[0];
137 AVFrame *out, *base, *dark, *bright;
138 int ret;
139
140 if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
141 (ret = ff_framesync_get_frame(&s->fs, 1, &dark, 0)) < 0 ||
142 (ret = ff_framesync_get_frame(&s->fs, 2, &bright, 0)) < 0)
143 return ret;
144
145 if (ctx->is_disabled) {
146 out = av_frame_clone(base);
147 if (!out)
148 return AVERROR(ENOMEM);
149 } else {
150 ThreadData td;
151
152 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
153 if (!out)
154 return AVERROR(ENOMEM);
155 av_frame_copy_props(out, base);
156
157 td.b = base;
158 td.o = dark;
159 td.m = bright;
160 td.d = out;
161
162 ctx->internal->execute(ctx, maskedclamp_slice, &td, NULL, FFMIN(s->height[0],
163 ff_filter_get_nb_threads(ctx)));
164 }
165 out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
166
167 return ff_filter_frame(outlink, out);
168 }
169
170 #define MASKEDCLAMP(type, name) \
171 static void maskedclamp##name(const uint8_t *bbsrc, uint8_t *ddst, \
172 const uint8_t *ddarksrc, const uint8_t *bbrightsrc, \
173 int w, int undershoot, int overshoot) \
174 { \
175 const type *bsrc = (const type *)bbsrc; \
176 const type *darksrc = (const type *)ddarksrc; \
177 const type *brightsrc = (const type *)bbrightsrc; \
178 type *dst = (type *)ddst; \
179 \
180 for (int x = 0; x < w; x++) { \
181 dst[x] = FFMAX(bsrc[x], darksrc[x] - undershoot); \
182 dst[x] = FFMIN(dst[x], brightsrc[x] + overshoot); \
183 } \
184 }
185
186 MASKEDCLAMP(uint8_t, 8)
187 MASKEDCLAMP(uint16_t, 16)
188
config_input(AVFilterLink * inlink)189 static int config_input(AVFilterLink *inlink)
190 {
191 AVFilterContext *ctx = inlink->dst;
192 MaskedClampContext *s = ctx->priv;
193 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
194 int vsub, hsub, ret;
195
196 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
197
198 if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
199 return ret;
200
201 hsub = desc->log2_chroma_w;
202 vsub = desc->log2_chroma_h;
203 s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
204 s->height[0] = s->height[3] = inlink->h;
205 s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
206 s->width[0] = s->width[3] = inlink->w;
207
208 s->depth = desc->comp[0].depth;
209 s->undershoot = FFMIN(s->undershoot, (1 << s->depth) - 1);
210 s->overshoot = FFMIN(s->overshoot, (1 << s->depth) - 1);
211
212 if (s->depth <= 8)
213 s->dsp.maskedclamp = maskedclamp8;
214 else
215 s->dsp.maskedclamp = maskedclamp16;
216
217 if (ARCH_X86)
218 ff_maskedclamp_init_x86(&s->dsp, s->depth);
219
220 return 0;
221 }
222
config_output(AVFilterLink * outlink)223 static int config_output(AVFilterLink *outlink)
224 {
225 AVFilterContext *ctx = outlink->src;
226 MaskedClampContext *s = ctx->priv;
227 AVFilterLink *base = ctx->inputs[0];
228 AVFilterLink *dark = ctx->inputs[1];
229 AVFilterLink *bright = ctx->inputs[2];
230 FFFrameSyncIn *in;
231 int ret;
232
233 if (base->format != dark->format ||
234 base->format != bright->format) {
235 av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
236 return AVERROR(EINVAL);
237 }
238 if (base->w != dark->w || base->h != dark->h ||
239 base->w != bright->w || base->h != bright->h) {
240 av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
241 "(size %dx%d) do not match the corresponding "
242 "second input link %s parameters (%dx%d) "
243 "and/or third input link %s parameters (size %dx%d)\n",
244 ctx->input_pads[0].name, base->w, base->h,
245 ctx->input_pads[1].name, dark->w, dark->h,
246 ctx->input_pads[2].name, bright->w, bright->h);
247 return AVERROR(EINVAL);
248 }
249
250 outlink->w = base->w;
251 outlink->h = base->h;
252 outlink->sample_aspect_ratio = base->sample_aspect_ratio;
253 outlink->frame_rate = base->frame_rate;
254
255 if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
256 return ret;
257
258 in = s->fs.in;
259 in[0].time_base = base->time_base;
260 in[1].time_base = dark->time_base;
261 in[2].time_base = bright->time_base;
262 in[0].sync = 1;
263 in[0].before = EXT_STOP;
264 in[0].after = EXT_INFINITY;
265 in[1].sync = 1;
266 in[1].before = EXT_STOP;
267 in[1].after = EXT_INFINITY;
268 in[2].sync = 1;
269 in[2].before = EXT_STOP;
270 in[2].after = EXT_INFINITY;
271 s->fs.opaque = s;
272 s->fs.on_event = process_frame;
273
274 ret = ff_framesync_configure(&s->fs);
275 outlink->time_base = s->fs.time_base;
276
277 return ret;
278 }
279
activate(AVFilterContext * ctx)280 static int activate(AVFilterContext *ctx)
281 {
282 MaskedClampContext *s = ctx->priv;
283 return ff_framesync_activate(&s->fs);
284 }
285
uninit(AVFilterContext * ctx)286 static av_cold void uninit(AVFilterContext *ctx)
287 {
288 MaskedClampContext *s = ctx->priv;
289
290 ff_framesync_uninit(&s->fs);
291 }
292
293 static const AVFilterPad maskedclamp_inputs[] = {
294 {
295 .name = "base",
296 .type = AVMEDIA_TYPE_VIDEO,
297 .config_props = config_input,
298 },
299 {
300 .name = "dark",
301 .type = AVMEDIA_TYPE_VIDEO,
302 },
303 {
304 .name = "bright",
305 .type = AVMEDIA_TYPE_VIDEO,
306 },
307 { NULL }
308 };
309
310 static const AVFilterPad maskedclamp_outputs[] = {
311 {
312 .name = "default",
313 .type = AVMEDIA_TYPE_VIDEO,
314 .config_props = config_output,
315 },
316 { NULL }
317 };
318
319 AVFilter ff_vf_maskedclamp = {
320 .name = "maskedclamp",
321 .description = NULL_IF_CONFIG_SMALL("Clamp first stream with second stream and third stream."),
322 .priv_size = sizeof(MaskedClampContext),
323 .uninit = uninit,
324 .activate = activate,
325 .query_formats = query_formats,
326 .inputs = maskedclamp_inputs,
327 .outputs = maskedclamp_outputs,
328 .priv_class = &maskedclamp_class,
329 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
330 .process_command = ff_filter_process_command,
331 };
332