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
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_YUVA422P12, AV_PIX_FMT_YUVA444P12,
77 AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
78 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
79 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
80 AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
81 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
82 AV_PIX_FMT_NONE
83 };
84
maskedclamp_slice(AVFilterContext * ctx,void * arg,int jobnr,int nb_jobs)85 static int maskedclamp_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
86 {
87 MaskedClampContext *s = ctx->priv;
88 ThreadData *td = arg;
89 int p;
90
91 for (p = 0; p < s->nb_planes; p++) {
92 const ptrdiff_t blinesize = td->b->linesize[p];
93 const ptrdiff_t brightlinesize = td->m->linesize[p];
94 const ptrdiff_t darklinesize = td->o->linesize[p];
95 const ptrdiff_t dlinesize = td->d->linesize[p];
96 const int w = s->width[p];
97 const int h = s->height[p];
98 const int slice_start = (h * jobnr) / nb_jobs;
99 const int slice_end = (h * (jobnr+1)) / nb_jobs;
100 const uint8_t *bsrc = td->b->data[p] + slice_start * blinesize;
101 const uint8_t *darksrc = td->o->data[p] + slice_start * darklinesize;
102 const uint8_t *brightsrc = td->m->data[p] + slice_start * brightlinesize;
103 uint8_t *dst = td->d->data[p] + slice_start * dlinesize;
104 const int undershoot = s->undershoot;
105 const int overshoot = s->overshoot;
106 int y;
107
108 if (!((1 << p) & s->planes)) {
109 av_image_copy_plane(dst, dlinesize, bsrc, blinesize,
110 s->linesize[p], slice_end - slice_start);
111 continue;
112 }
113
114 for (y = slice_start; y < slice_end; y++) {
115 s->dsp.maskedclamp(bsrc, dst, darksrc, brightsrc, w, undershoot, overshoot);
116
117 dst += dlinesize;
118 bsrc += blinesize;
119 darksrc += darklinesize;
120 brightsrc += brightlinesize;
121 }
122 }
123
124 return 0;
125 }
126
process_frame(FFFrameSync * fs)127 static int process_frame(FFFrameSync *fs)
128 {
129 AVFilterContext *ctx = fs->parent;
130 MaskedClampContext *s = fs->opaque;
131 AVFilterLink *outlink = ctx->outputs[0];
132 AVFrame *out, *base, *dark, *bright;
133 int ret;
134
135 if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
136 (ret = ff_framesync_get_frame(&s->fs, 1, &dark, 0)) < 0 ||
137 (ret = ff_framesync_get_frame(&s->fs, 2, &bright, 0)) < 0)
138 return ret;
139
140 if (ctx->is_disabled) {
141 out = av_frame_clone(base);
142 if (!out)
143 return AVERROR(ENOMEM);
144 } else {
145 ThreadData td;
146
147 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
148 if (!out)
149 return AVERROR(ENOMEM);
150 av_frame_copy_props(out, base);
151
152 td.b = base;
153 td.o = dark;
154 td.m = bright;
155 td.d = out;
156
157 ff_filter_execute(ctx, maskedclamp_slice, &td, NULL,
158 FFMIN(s->height[0], ff_filter_get_nb_threads(ctx)));
159 }
160 out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
161
162 return ff_filter_frame(outlink, out);
163 }
164
165 #define MASKEDCLAMP(type, name) \
166 static void maskedclamp##name(const uint8_t *bbsrc, uint8_t *ddst, \
167 const uint8_t *ddarksrc, const uint8_t *bbrightsrc, \
168 int w, int undershoot, int overshoot) \
169 { \
170 const type *bsrc = (const type *)bbsrc; \
171 const type *darksrc = (const type *)ddarksrc; \
172 const type *brightsrc = (const type *)bbrightsrc; \
173 type *dst = (type *)ddst; \
174 \
175 for (int x = 0; x < w; x++) { \
176 dst[x] = FFMAX(bsrc[x], darksrc[x] - undershoot); \
177 dst[x] = FFMIN(dst[x], brightsrc[x] + overshoot); \
178 } \
179 }
180
181 MASKEDCLAMP(uint8_t, 8)
182 MASKEDCLAMP(uint16_t, 16)
183
config_input(AVFilterLink * inlink)184 static int config_input(AVFilterLink *inlink)
185 {
186 AVFilterContext *ctx = inlink->dst;
187 MaskedClampContext *s = ctx->priv;
188 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
189 int vsub, hsub, ret;
190
191 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
192
193 if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
194 return ret;
195
196 hsub = desc->log2_chroma_w;
197 vsub = desc->log2_chroma_h;
198 s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
199 s->height[0] = s->height[3] = inlink->h;
200 s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
201 s->width[0] = s->width[3] = inlink->w;
202
203 s->depth = desc->comp[0].depth;
204 s->undershoot = FFMIN(s->undershoot, (1 << s->depth) - 1);
205 s->overshoot = FFMIN(s->overshoot, (1 << s->depth) - 1);
206
207 if (s->depth <= 8)
208 s->dsp.maskedclamp = maskedclamp8;
209 else
210 s->dsp.maskedclamp = maskedclamp16;
211
212 #if ARCH_X86
213 ff_maskedclamp_init_x86(&s->dsp, s->depth);
214 #endif
215
216 return 0;
217 }
218
config_output(AVFilterLink * outlink)219 static 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->w != dark->w || base->h != dark->h ||
230 base->w != bright->w || base->h != bright->h) {
231 av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
232 "(size %dx%d) do not match the corresponding "
233 "second input link %s parameters (%dx%d) "
234 "and/or third input link %s parameters (size %dx%d)\n",
235 ctx->input_pads[0].name, base->w, base->h,
236 ctx->input_pads[1].name, dark->w, dark->h,
237 ctx->input_pads[2].name, bright->w, bright->h);
238 return AVERROR(EINVAL);
239 }
240
241 outlink->w = base->w;
242 outlink->h = base->h;
243 outlink->sample_aspect_ratio = base->sample_aspect_ratio;
244 outlink->frame_rate = base->frame_rate;
245
246 if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
247 return ret;
248
249 in = s->fs.in;
250 in[0].time_base = base->time_base;
251 in[1].time_base = dark->time_base;
252 in[2].time_base = bright->time_base;
253 in[0].sync = 1;
254 in[0].before = EXT_STOP;
255 in[0].after = EXT_INFINITY;
256 in[1].sync = 1;
257 in[1].before = EXT_STOP;
258 in[1].after = EXT_INFINITY;
259 in[2].sync = 1;
260 in[2].before = EXT_STOP;
261 in[2].after = EXT_INFINITY;
262 s->fs.opaque = s;
263 s->fs.on_event = process_frame;
264
265 ret = ff_framesync_configure(&s->fs);
266 outlink->time_base = s->fs.time_base;
267
268 return ret;
269 }
270
activate(AVFilterContext * ctx)271 static int activate(AVFilterContext *ctx)
272 {
273 MaskedClampContext *s = ctx->priv;
274 return ff_framesync_activate(&s->fs);
275 }
276
uninit(AVFilterContext * ctx)277 static av_cold void uninit(AVFilterContext *ctx)
278 {
279 MaskedClampContext *s = ctx->priv;
280
281 ff_framesync_uninit(&s->fs);
282 }
283
284 static const AVFilterPad maskedclamp_inputs[] = {
285 {
286 .name = "base",
287 .type = AVMEDIA_TYPE_VIDEO,
288 .config_props = config_input,
289 },
290 {
291 .name = "dark",
292 .type = AVMEDIA_TYPE_VIDEO,
293 },
294 {
295 .name = "bright",
296 .type = AVMEDIA_TYPE_VIDEO,
297 },
298 };
299
300 static const AVFilterPad maskedclamp_outputs[] = {
301 {
302 .name = "default",
303 .type = AVMEDIA_TYPE_VIDEO,
304 .config_props = config_output,
305 },
306 };
307
308 const AVFilter ff_vf_maskedclamp = {
309 .name = "maskedclamp",
310 .description = NULL_IF_CONFIG_SMALL("Clamp first stream with second stream and third stream."),
311 .priv_size = sizeof(MaskedClampContext),
312 .uninit = uninit,
313 .activate = activate,
314 FILTER_INPUTS(maskedclamp_inputs),
315 FILTER_OUTPUTS(maskedclamp_outputs),
316 FILTER_PIXFMTS_ARRAY(pix_fmts),
317 .priv_class = &maskedclamp_class,
318 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
319 .process_command = ff_filter_process_command,
320 };
321