1 /*
2 * Copyright (c) 2015 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 "maskedmerge.h"
29
30 #define OFFSET(x) offsetof(MaskedMergeContext, x)
31 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
32
33 static const AVOption maskedmerge_options[] = {
34 { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
35 { NULL }
36 };
37
38 AVFILTER_DEFINE_CLASS(maskedmerge);
39
40 static const enum AVPixelFormat pix_fmts[] = {
41 AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
42 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
43 AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
44 AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
45 AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
46 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
47 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV440P10,
48 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
49 AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
50 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
51 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
52 AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
53 AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
54 AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
55 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
56 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
57 AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
58 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
59 AV_PIX_FMT_GRAYF32, AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32,
60 AV_PIX_FMT_NONE
61 };
62
63 typedef struct ThreadData {
64 AVFrame *base, *overlay, *mask;
65 AVFrame *out;
66 } ThreadData;
67
filter_slice(AVFilterContext * ctx,void * arg,int jobnr,int nb_jobs)68 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
69 {
70 MaskedMergeContext *s = ctx->priv;
71 ThreadData *td = arg;
72 AVFrame *base = td->base;
73 AVFrame *overlay = td->overlay;
74 AVFrame *mask = td->mask;
75 AVFrame *out = td->out;
76 int p;
77
78 for (p = 0; p < s->nb_planes; p++) {
79 const int h = s->height[p];
80 const int slice_start = (h * jobnr) / nb_jobs;
81 const int slice_end = (h * (jobnr+1)) / nb_jobs;
82
83 if (!((1 << p) & s->planes)) {
84 av_image_copy_plane(out->data[p] + slice_start * out->linesize[p],
85 out->linesize[p],
86 base->data[p] + slice_start * base->linesize[p],
87 base->linesize[p],
88 s->linesize[p], slice_end - slice_start);
89 continue;
90 }
91
92 s->maskedmerge(base->data[p] + slice_start * base->linesize[p],
93 overlay->data[p] + slice_start * overlay->linesize[p],
94 mask->data[p] + slice_start * mask->linesize[p],
95 out->data[p] + slice_start * out->linesize[p],
96 base->linesize[p], overlay->linesize[p],
97 mask->linesize[p], out->linesize[p],
98 s->width[p], slice_end - slice_start,
99 s->half, s->max);
100 }
101
102 return 0;
103 }
104
process_frame(FFFrameSync * fs)105 static int process_frame(FFFrameSync *fs)
106 {
107 AVFilterContext *ctx = fs->parent;
108 MaskedMergeContext *s = fs->opaque;
109 AVFilterLink *outlink = ctx->outputs[0];
110 AVFrame *out, *base, *overlay, *mask;
111 ThreadData td;
112 int ret;
113
114 if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
115 (ret = ff_framesync_get_frame(&s->fs, 1, &overlay, 0)) < 0 ||
116 (ret = ff_framesync_get_frame(&s->fs, 2, &mask, 0)) < 0)
117 return ret;
118
119 if (ctx->is_disabled) {
120 out = av_frame_clone(base);
121 if (!out)
122 return AVERROR(ENOMEM);
123 } else {
124 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
125 if (!out)
126 return AVERROR(ENOMEM);
127 av_frame_copy_props(out, base);
128
129 td.out = out;
130 td.base = base;
131 td.overlay = overlay;
132 td.mask = mask;
133 ff_filter_execute(ctx, filter_slice, &td, NULL,
134 FFMIN(s->height[2], ff_filter_get_nb_threads(ctx)));
135 }
136 out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
137
138 return ff_filter_frame(outlink, out);
139 }
140
141 #define MASKEDMERGE(n, type, ctype, half, max, div) \
142 static void maskedmerge##n(const uint8_t *bbsrc, const uint8_t *oosrc, \
143 const uint8_t *mmsrc, uint8_t *ddst, \
144 ptrdiff_t blinesize, ptrdiff_t olinesize, \
145 ptrdiff_t mlinesize, ptrdiff_t dlinesize, \
146 int w, int h, \
147 int hhalf, int mmax) \
148 { \
149 const type *bsrc = (const type *)bbsrc; \
150 const type *osrc = (const type *)oosrc; \
151 const type *msrc = (const type *)mmsrc; \
152 type *dst = (type *)ddst; \
153 \
154 dlinesize /= sizeof(type); \
155 blinesize /= sizeof(type); \
156 olinesize /= sizeof(type); \
157 mlinesize /= sizeof(type); \
158 \
159 for (int y = 0; y < h; y++) { \
160 for (int x = 0; x < w; x++) { \
161 const type invm = max - msrc[x]; \
162 const ctype r = ((ctype)(bsrc[x] * invm) + \
163 (ctype)(msrc[x] * osrc[x] + half)) div; \
164 dst[x] = r; \
165 } \
166 \
167 dst += dlinesize; \
168 bsrc += blinesize; \
169 osrc += olinesize; \
170 msrc += mlinesize; \
171 } \
172 }
173
174 MASKEDMERGE(8, uint8_t, uint16_t, 127, 255, / 255)
175 MASKEDMERGE(16, uint16_t, uint32_t, hhalf, mmax, / mmax)
176 MASKEDMERGE(32, float, float, 0.f, 1.f, + 0.f)
177
config_input(AVFilterLink * inlink)178 static int config_input(AVFilterLink *inlink)
179 {
180 AVFilterContext *ctx = inlink->dst;
181 MaskedMergeContext *s = ctx->priv;
182 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
183 int vsub, hsub;
184
185 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
186
187 hsub = desc->log2_chroma_w;
188 vsub = desc->log2_chroma_h;
189 s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
190 s->height[0] = s->height[3] = inlink->h;
191 s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
192 s->width[0] = s->width[3] = inlink->w;
193
194 s->depth = desc->comp[0].depth;
195 s->max = (1 << s->depth) - 1;
196 s->half = s->max / 2;
197
198 if (s->depth == 8)
199 s->maskedmerge = maskedmerge8;
200 else if (s->depth <= 16)
201 s->maskedmerge = maskedmerge16;
202 else
203 s->maskedmerge = maskedmerge32;
204
205 #if ARCH_X86
206 ff_maskedmerge_init_x86(s);
207 #endif
208
209 return 0;
210 }
211
config_output(AVFilterLink * outlink)212 static int config_output(AVFilterLink *outlink)
213 {
214 AVFilterContext *ctx = outlink->src;
215 MaskedMergeContext *s = ctx->priv;
216 AVFilterLink *base = ctx->inputs[0];
217 AVFilterLink *overlay = ctx->inputs[1];
218 AVFilterLink *mask = ctx->inputs[2];
219 FFFrameSyncIn *in;
220 int ret;
221
222 if (base->w != overlay->w || base->h != overlay->h ||
223 base->w != mask->w || base->h != mask->h) {
224 av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
225 "(size %dx%d) do not match the corresponding "
226 "second input link %s parameters (size %dx%d) "
227 "and/or third input link %s parameters (size %dx%d)\n",
228 ctx->input_pads[0].name, base->w, base->h,
229 ctx->input_pads[1].name, overlay->w, overlay->h,
230 ctx->input_pads[2].name, mask->w, mask->h);
231 return AVERROR(EINVAL);
232 }
233
234 outlink->w = base->w;
235 outlink->h = base->h;
236 outlink->sample_aspect_ratio = base->sample_aspect_ratio;
237 outlink->frame_rate = base->frame_rate;
238
239 if ((ret = av_image_fill_linesizes(s->linesize, outlink->format, outlink->w)) < 0)
240 return ret;
241
242 if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
243 return ret;
244
245 in = s->fs.in;
246 in[0].time_base = base->time_base;
247 in[1].time_base = overlay->time_base;
248 in[2].time_base = mask->time_base;
249 in[0].sync = 1;
250 in[0].before = EXT_STOP;
251 in[0].after = EXT_INFINITY;
252 in[1].sync = 1;
253 in[1].before = EXT_STOP;
254 in[1].after = EXT_INFINITY;
255 in[2].sync = 1;
256 in[2].before = EXT_STOP;
257 in[2].after = EXT_INFINITY;
258 s->fs.opaque = s;
259 s->fs.on_event = process_frame;
260
261 ret = ff_framesync_configure(&s->fs);
262 outlink->time_base = s->fs.time_base;
263
264 return ret;
265 }
266
activate(AVFilterContext * ctx)267 static int activate(AVFilterContext *ctx)
268 {
269 MaskedMergeContext *s = ctx->priv;
270 return ff_framesync_activate(&s->fs);
271 }
272
uninit(AVFilterContext * ctx)273 static av_cold void uninit(AVFilterContext *ctx)
274 {
275 MaskedMergeContext *s = ctx->priv;
276
277 ff_framesync_uninit(&s->fs);
278 }
279
280 static const AVFilterPad maskedmerge_inputs[] = {
281 {
282 .name = "base",
283 .type = AVMEDIA_TYPE_VIDEO,
284 .config_props = config_input,
285 },
286 {
287 .name = "overlay",
288 .type = AVMEDIA_TYPE_VIDEO,
289 },
290 {
291 .name = "mask",
292 .type = AVMEDIA_TYPE_VIDEO,
293 },
294 };
295
296 static const AVFilterPad maskedmerge_outputs[] = {
297 {
298 .name = "default",
299 .type = AVMEDIA_TYPE_VIDEO,
300 .config_props = config_output,
301 },
302 };
303
304 const AVFilter ff_vf_maskedmerge = {
305 .name = "maskedmerge",
306 .description = NULL_IF_CONFIG_SMALL("Merge first stream with second stream using third stream as mask."),
307 .priv_size = sizeof(MaskedMergeContext),
308 .uninit = uninit,
309 .activate = activate,
310 FILTER_INPUTS(maskedmerge_inputs),
311 FILTER_OUTPUTS(maskedmerge_outputs),
312 FILTER_PIXFMTS_ARRAY(pix_fmts),
313 .priv_class = &maskedmerge_class,
314 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
315 .process_command = ff_filter_process_command,
316 };
317