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path: root/libavfilter/vf_maskedmerge.c (plain)
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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
32
33static const AVOption maskedmerge_options[] = {
34 { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
35 { NULL }
36};
37
38AVFILTER_DEFINE_CLASS(maskedmerge);
39
40static int query_formats(AVFilterContext *ctx)
41{
42 static const enum AVPixelFormat pix_fmts[] = {
43 AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
44 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
45 AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
46 AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
47 AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
48 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
49 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
50 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
51 AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
52 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
53 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
54 AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
55 AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
56 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
57 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
58 AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
59 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY16,
60 AV_PIX_FMT_NONE
61 };
62
63 return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
64}
65
66static int process_frame(FFFrameSync *fs)
67{
68 AVFilterContext *ctx = fs->parent;
69 MaskedMergeContext *s = fs->opaque;
70 AVFilterLink *outlink = ctx->outputs[0];
71 AVFrame *out, *base, *overlay, *mask;
72 int ret;
73
74 if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
75 (ret = ff_framesync_get_frame(&s->fs, 1, &overlay, 0)) < 0 ||
76 (ret = ff_framesync_get_frame(&s->fs, 2, &mask, 0)) < 0)
77 return ret;
78
79 if (ctx->is_disabled) {
80 out = av_frame_clone(base);
81 if (!out)
82 return AVERROR(ENOMEM);
83 } else {
84 int p;
85
86 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
87 if (!out)
88 return AVERROR(ENOMEM);
89 av_frame_copy_props(out, base);
90
91 for (p = 0; p < s->nb_planes; p++) {
92 if (!((1 << p) & s->planes)) {
93 av_image_copy_plane(out->data[p], out->linesize[p], base->data[p], base->linesize[p],
94 s->width[p], s->height[p]);
95 continue;
96 }
97
98 s->maskedmerge(base->data[p], overlay->data[p],
99 mask->data[p], out->data[p],
100 base->linesize[p], overlay->linesize[p],
101 mask->linesize[p], out->linesize[p],
102 s->width[p], s->height[p],
103 s->half, s->depth);
104 }
105 }
106 out->pts = av_rescale_q(base->pts, s->fs.time_base, outlink->time_base);
107
108 return ff_filter_frame(outlink, out);
109}
110
111static void maskedmerge8(const uint8_t *bsrc, const uint8_t *osrc,
112 const uint8_t *msrc, uint8_t *dst,
113 ptrdiff_t blinesize, ptrdiff_t olinesize,
114 ptrdiff_t mlinesize, ptrdiff_t dlinesize,
115 int w, int h,
116 int half, int shift)
117{
118 int x, y;
119
120 for (y = 0; y < h; y++) {
121 for (x = 0; x < w; x++) {
122 dst[x] = bsrc[x] + ((msrc[x] * (osrc[x] - bsrc[x]) + 128) >> 8);
123 }
124
125 dst += dlinesize;
126 bsrc += blinesize;
127 osrc += olinesize;
128 msrc += mlinesize;
129 }
130}
131
132static void maskedmerge16(const uint8_t *bbsrc, const uint8_t *oosrc,
133 const uint8_t *mmsrc, uint8_t *ddst,
134 ptrdiff_t blinesize, ptrdiff_t olinesize,
135 ptrdiff_t mlinesize, ptrdiff_t dlinesize,
136 int w, int h,
137 int half, int shift)
138{
139 const uint16_t *bsrc = (const uint16_t *)bbsrc;
140 const uint16_t *osrc = (const uint16_t *)oosrc;
141 const uint16_t *msrc = (const uint16_t *)mmsrc;
142 uint16_t *dst = (uint16_t *)ddst;
143 int x, y;
144
145 for (y = 0; y < h; y++) {
146 for (x = 0; x < w; x++) {
147 dst[x] = bsrc[x] + ((msrc[x] * (osrc[x] - bsrc[x]) + half) >> shift);
148 }
149
150 dst += dlinesize / 2;
151 bsrc += blinesize / 2;
152 osrc += olinesize / 2;
153 msrc += mlinesize / 2;
154 }
155}
156
157static int config_input(AVFilterLink *inlink)
158{
159 AVFilterContext *ctx = inlink->dst;
160 MaskedMergeContext *s = ctx->priv;
161 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
162 int vsub, hsub;
163
164 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
165
166 hsub = desc->log2_chroma_w;
167 vsub = desc->log2_chroma_h;
168 s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
169 s->height[0] = s->height[3] = inlink->h;
170 s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
171 s->width[0] = s->width[3] = inlink->w;
172
173 s->depth = desc->comp[0].depth;
174 s->half = (1 << s->depth) / 2;
175
176 if (desc->comp[0].depth == 8)
177 s->maskedmerge = maskedmerge8;
178 else
179 s->maskedmerge = maskedmerge16;
180
181 if (ARCH_X86)
182 ff_maskedmerge_init_x86(s);
183
184 return 0;
185}
186
187static int config_output(AVFilterLink *outlink)
188{
189 AVFilterContext *ctx = outlink->src;
190 MaskedMergeContext *s = ctx->priv;
191 AVFilterLink *base = ctx->inputs[0];
192 AVFilterLink *overlay = ctx->inputs[1];
193 AVFilterLink *mask = ctx->inputs[2];
194 FFFrameSyncIn *in;
195 int ret;
196
197 if (base->format != overlay->format ||
198 base->format != mask->format) {
199 av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
200 return AVERROR(EINVAL);
201 }
202 if (base->w != overlay->w ||
203 base->h != overlay->h ||
204 base->sample_aspect_ratio.num != overlay->sample_aspect_ratio.num ||
205 base->sample_aspect_ratio.den != overlay->sample_aspect_ratio.den ||
206 base->w != mask->w ||
207 base->h != mask->h ||
208 base->sample_aspect_ratio.num != mask->sample_aspect_ratio.num ||
209 base->sample_aspect_ratio.den != mask->sample_aspect_ratio.den) {
210 av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
211 "(size %dx%d, SAR %d:%d) do not match the corresponding "
212 "second input link %s parameters (%dx%d, SAR %d:%d) "
213 "and/or third input link %s parameters (%dx%d, SAR %d:%d)\n",
214 ctx->input_pads[0].name, base->w, base->h,
215 base->sample_aspect_ratio.num,
216 base->sample_aspect_ratio.den,
217 ctx->input_pads[1].name, overlay->w, overlay->h,
218 overlay->sample_aspect_ratio.num,
219 overlay->sample_aspect_ratio.den,
220 ctx->input_pads[2].name, mask->w, mask->h,
221 mask->sample_aspect_ratio.num,
222 mask->sample_aspect_ratio.den);
223 return AVERROR(EINVAL);
224 }
225
226 outlink->w = base->w;
227 outlink->h = base->h;
228 outlink->time_base = base->time_base;
229 outlink->sample_aspect_ratio = base->sample_aspect_ratio;
230 outlink->frame_rate = base->frame_rate;
231
232 if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
233 return ret;
234
235 in = s->fs.in;
236 in[0].time_base = base->time_base;
237 in[1].time_base = overlay->time_base;
238 in[2].time_base = mask->time_base;
239 in[0].sync = 1;
240 in[0].before = EXT_STOP;
241 in[0].after = EXT_INFINITY;
242 in[1].sync = 1;
243 in[1].before = EXT_STOP;
244 in[1].after = EXT_INFINITY;
245 in[2].sync = 1;
246 in[2].before = EXT_STOP;
247 in[2].after = EXT_INFINITY;
248 s->fs.opaque = s;
249 s->fs.on_event = process_frame;
250
251 return ff_framesync_configure(&s->fs);
252}
253
254static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
255{
256 MaskedMergeContext *s = inlink->dst->priv;
257 return ff_framesync_filter_frame(&s->fs, inlink, buf);
258}
259
260static int request_frame(AVFilterLink *outlink)
261{
262 MaskedMergeContext *s = outlink->src->priv;
263 return ff_framesync_request_frame(&s->fs, outlink);
264}
265
266static av_cold void uninit(AVFilterContext *ctx)
267{
268 MaskedMergeContext *s = ctx->priv;
269
270 ff_framesync_uninit(&s->fs);
271}
272
273static const AVFilterPad maskedmerge_inputs[] = {
274 {
275 .name = "base",
276 .type = AVMEDIA_TYPE_VIDEO,
277 .filter_frame = filter_frame,
278 .config_props = config_input,
279 },
280 {
281 .name = "overlay",
282 .type = AVMEDIA_TYPE_VIDEO,
283 .filter_frame = filter_frame,
284 },
285 {
286 .name = "mask",
287 .type = AVMEDIA_TYPE_VIDEO,
288 .filter_frame = filter_frame,
289 },
290 { NULL }
291};
292
293static const AVFilterPad maskedmerge_outputs[] = {
294 {
295 .name = "default",
296 .type = AVMEDIA_TYPE_VIDEO,
297 .config_props = config_output,
298 .request_frame = request_frame,
299 },
300 { NULL }
301};
302
303AVFilter ff_vf_maskedmerge = {
304 .name = "maskedmerge",
305 .description = NULL_IF_CONFIG_SMALL("Merge first stream with second stream using third stream as mask."),
306 .priv_size = sizeof(MaskedMergeContext),
307 .uninit = uninit,
308 .query_formats = query_formats,
309 .inputs = maskedmerge_inputs,
310 .outputs = maskedmerge_outputs,
311 .priv_class = &maskedmerge_class,
312 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
313};
314
generated by cgit at 2024-05-17 03:16:23 (GMT)