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1 | /* | ||
2 | * Copyright (c) 2010 Stefano Sabatini | ||
3 | * Copyright (c) 2010 Baptiste Coudurier | ||
4 | * Copyright (c) 2007 Bobby Bingham | ||
5 | * | ||
6 | * This file is part of FFmpeg. | ||
7 | * | ||
8 | * FFmpeg is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU Lesser General Public | ||
10 | * License as published by the Free Software Foundation; either | ||
11 | * version 2.1 of the License, or (at your option) any later version. | ||
12 | * | ||
13 | * FFmpeg is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
16 | * Lesser General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU Lesser General Public | ||
19 | * License along with FFmpeg; if not, write to the Free Software | ||
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
21 | */ | ||
22 | |||
23 | /** | ||
24 | * @file | ||
25 | * overlay one video on top of another | ||
26 | */ | ||
27 | |||
28 | #include "avfilter.h" | ||
29 | #include "formats.h" | ||
30 | #include "libavutil/common.h" | ||
31 | #include "libavutil/eval.h" | ||
32 | #include "libavutil/avstring.h" | ||
33 | #include "libavutil/pixdesc.h" | ||
34 | #include "libavutil/imgutils.h" | ||
35 | #include "libavutil/mathematics.h" | ||
36 | #include "libavutil/opt.h" | ||
37 | #include "libavutil/timestamp.h" | ||
38 | #include "filters.h" | ||
39 | #include "drawutils.h" | ||
40 | #include "framesync.h" | ||
41 | #include "video.h" | ||
42 | #include "vf_overlay.h" | ||
43 | |||
44 | typedef struct ThreadData { | ||
45 | AVFrame *dst, *src; | ||
46 | } ThreadData; | ||
47 | |||
48 | static const char *const var_names[] = { | ||
49 | "main_w", "W", ///< width of the main video | ||
50 | "main_h", "H", ///< height of the main video | ||
51 | "overlay_w", "w", ///< width of the overlay video | ||
52 | "overlay_h", "h", ///< height of the overlay video | ||
53 | "hsub", | ||
54 | "vsub", | ||
55 | "x", | ||
56 | "y", | ||
57 | "n", ///< number of frame | ||
58 | #if FF_API_FRAME_PKT | ||
59 | "pos", ///< position in the file | ||
60 | #endif | ||
61 | "t", ///< timestamp expressed in seconds | ||
62 | NULL | ||
63 | }; | ||
64 | |||
65 | #define MAIN 0 | ||
66 | #define OVERLAY 1 | ||
67 | |||
68 | #define R 0 | ||
69 | #define G 1 | ||
70 | #define B 2 | ||
71 | #define A 3 | ||
72 | |||
73 | #define Y 0 | ||
74 | #define U 1 | ||
75 | #define V 2 | ||
76 | |||
77 | enum EvalMode { | ||
78 | EVAL_MODE_INIT, | ||
79 | EVAL_MODE_FRAME, | ||
80 | EVAL_MODE_NB | ||
81 | }; | ||
82 | |||
83 | 46 | static av_cold void uninit(AVFilterContext *ctx) | |
84 | { | ||
85 | 46 | OverlayContext *s = ctx->priv; | |
86 | |||
87 | 46 | ff_framesync_uninit(&s->fs); | |
88 | 46 | av_expr_free(s->x_pexpr); s->x_pexpr = NULL; | |
89 | 46 | av_expr_free(s->y_pexpr); s->y_pexpr = NULL; | |
90 | 46 | } | |
91 | |||
92 | 1442 | static inline int normalize_xy(double d, int chroma_sub) | |
93 | { | ||
94 |
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1442 | if (isnan(d)) |
95 | ✗ | return INT_MAX; | |
96 | 1442 | return (int)d & ~((1 << chroma_sub) - 1); | |
97 | } | ||
98 | |||
99 | 721 | static void eval_expr(AVFilterContext *ctx) | |
100 | { | ||
101 | 721 | OverlayContext *s = ctx->priv; | |
102 | |||
103 | 721 | s->var_values[VAR_X] = av_expr_eval(s->x_pexpr, s->var_values, NULL); | |
104 | 721 | s->var_values[VAR_Y] = av_expr_eval(s->y_pexpr, s->var_values, NULL); | |
105 | /* It is necessary if x is expressed from y */ | ||
106 | 721 | s->var_values[VAR_X] = av_expr_eval(s->x_pexpr, s->var_values, NULL); | |
107 | 721 | s->x = normalize_xy(s->var_values[VAR_X], s->hsub); | |
108 | 721 | s->y = normalize_xy(s->var_values[VAR_Y], s->vsub); | |
109 | 721 | } | |
110 | |||
111 | 46 | static int set_expr(AVExpr **pexpr, const char *expr, const char *option, void *log_ctx) | |
112 | { | ||
113 | int ret; | ||
114 | 46 | AVExpr *old = NULL; | |
115 | |||
116 |
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46 | if (*pexpr) |
117 | ✗ | old = *pexpr; | |
118 | 46 | ret = av_expr_parse(pexpr, expr, var_names, | |
119 | NULL, NULL, NULL, NULL, 0, log_ctx); | ||
120 |
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46 | if (ret < 0) { |
121 | ✗ | av_log(log_ctx, AV_LOG_ERROR, | |
122 | "Error when evaluating the expression '%s' for %s\n", | ||
123 | expr, option); | ||
124 | ✗ | *pexpr = old; | |
125 | ✗ | return ret; | |
126 | } | ||
127 | |||
128 | 46 | av_expr_free(old); | |
129 | 46 | return 0; | |
130 | } | ||
131 | |||
132 | ✗ | static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, | |
133 | char *res, int res_len, int flags) | ||
134 | { | ||
135 | ✗ | OverlayContext *s = ctx->priv; | |
136 | int ret; | ||
137 | |||
138 | ✗ | if (!strcmp(cmd, "x")) | |
139 | ✗ | ret = set_expr(&s->x_pexpr, args, cmd, ctx); | |
140 | ✗ | else if (!strcmp(cmd, "y")) | |
141 | ✗ | ret = set_expr(&s->y_pexpr, args, cmd, ctx); | |
142 | else | ||
143 | ✗ | ret = AVERROR(ENOSYS); | |
144 | |||
145 | ✗ | if (ret < 0) | |
146 | ✗ | return ret; | |
147 | |||
148 | ✗ | if (s->eval_mode == EVAL_MODE_INIT) { | |
149 | ✗ | eval_expr(ctx); | |
150 | ✗ | av_log(ctx, AV_LOG_VERBOSE, "x:%f xi:%d y:%f yi:%d\n", | |
151 | s->var_values[VAR_X], s->x, | ||
152 | s->var_values[VAR_Y], s->y); | ||
153 | } | ||
154 | ✗ | return ret; | |
155 | } | ||
156 | |||
157 | static const enum AVPixelFormat alpha_pix_fmts[] = { | ||
158 | AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, | ||
159 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, | ||
160 | AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, AV_PIX_FMT_RGBA, | ||
161 | AV_PIX_FMT_BGRA, AV_PIX_FMT_GBRAP, AV_PIX_FMT_NONE | ||
162 | }; | ||
163 | |||
164 | 23 | static int query_formats(AVFilterContext *ctx) | |
165 | { | ||
166 | 23 | OverlayContext *s = ctx->priv; | |
167 | |||
168 | /* overlay formats contains alpha, for avoiding conversion with alpha information loss */ | ||
169 | static const enum AVPixelFormat main_pix_fmts_yuv420[] = { | ||
170 | AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVA420P, | ||
171 | AV_PIX_FMT_NV12, AV_PIX_FMT_NV21, | ||
172 | AV_PIX_FMT_NONE | ||
173 | }; | ||
174 | static const enum AVPixelFormat overlay_pix_fmts_yuv420[] = { | ||
175 | AV_PIX_FMT_YUVA420P, AV_PIX_FMT_NONE | ||
176 | }; | ||
177 | |||
178 | static const enum AVPixelFormat main_pix_fmts_yuv420p10[] = { | ||
179 | AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUVA420P10, | ||
180 | AV_PIX_FMT_NONE | ||
181 | }; | ||
182 | static const enum AVPixelFormat overlay_pix_fmts_yuv420p10[] = { | ||
183 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_NONE | ||
184 | }; | ||
185 | |||
186 | static const enum AVPixelFormat main_pix_fmts_yuv422[] = { | ||
187 | AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_NONE | ||
188 | }; | ||
189 | static const enum AVPixelFormat overlay_pix_fmts_yuv422[] = { | ||
190 | AV_PIX_FMT_YUVA422P, AV_PIX_FMT_NONE | ||
191 | }; | ||
192 | |||
193 | static const enum AVPixelFormat main_pix_fmts_yuv422p10[] = { | ||
194 | AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_NONE | ||
195 | }; | ||
196 | static const enum AVPixelFormat overlay_pix_fmts_yuv422p10[] = { | ||
197 | AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_NONE | ||
198 | }; | ||
199 | |||
200 | static const enum AVPixelFormat main_pix_fmts_yuv444[] = { | ||
201 | AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE | ||
202 | }; | ||
203 | static const enum AVPixelFormat overlay_pix_fmts_yuv444[] = { | ||
204 | AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE | ||
205 | }; | ||
206 | |||
207 | static const enum AVPixelFormat main_pix_fmts_yuv444p10[] = { | ||
208 | AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_NONE | ||
209 | }; | ||
210 | static const enum AVPixelFormat overlay_pix_fmts_yuv444p10[] = { | ||
211 | AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_NONE | ||
212 | }; | ||
213 | |||
214 | static const enum AVPixelFormat main_pix_fmts_gbrp[] = { | ||
215 | AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_NONE | ||
216 | }; | ||
217 | static const enum AVPixelFormat overlay_pix_fmts_gbrp[] = { | ||
218 | AV_PIX_FMT_GBRAP, AV_PIX_FMT_NONE | ||
219 | }; | ||
220 | |||
221 | static const enum AVPixelFormat main_pix_fmts_rgb[] = { | ||
222 | AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA, | ||
223 | AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA, | ||
224 | AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, | ||
225 | AV_PIX_FMT_NONE | ||
226 | }; | ||
227 | static const enum AVPixelFormat overlay_pix_fmts_rgb[] = { | ||
228 | AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA, | ||
229 | AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA, | ||
230 | AV_PIX_FMT_NONE | ||
231 | }; | ||
232 | |||
233 | const enum AVPixelFormat *main_formats, *overlay_formats; | ||
234 | AVFilterFormats *formats; | ||
235 | int ret; | ||
236 | |||
237 |
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23 | switch (s->format) { |
238 | 9 | case OVERLAY_FORMAT_YUV420: | |
239 | 9 | main_formats = main_pix_fmts_yuv420; | |
240 | 9 | overlay_formats = overlay_pix_fmts_yuv420; | |
241 | 9 | break; | |
242 | 1 | case OVERLAY_FORMAT_YUV420P10: | |
243 | 1 | main_formats = main_pix_fmts_yuv420p10; | |
244 | 1 | overlay_formats = overlay_pix_fmts_yuv420p10; | |
245 | 1 | break; | |
246 | 3 | case OVERLAY_FORMAT_YUV422: | |
247 | 3 | main_formats = main_pix_fmts_yuv422; | |
248 | 3 | overlay_formats = overlay_pix_fmts_yuv422; | |
249 | 3 | break; | |
250 | 1 | case OVERLAY_FORMAT_YUV422P10: | |
251 | 1 | main_formats = main_pix_fmts_yuv422p10; | |
252 | 1 | overlay_formats = overlay_pix_fmts_yuv422p10; | |
253 | 1 | break; | |
254 | 3 | case OVERLAY_FORMAT_YUV444: | |
255 | 3 | main_formats = main_pix_fmts_yuv444; | |
256 | 3 | overlay_formats = overlay_pix_fmts_yuv444; | |
257 | 3 | break; | |
258 | 1 | case OVERLAY_FORMAT_YUV444P10: | |
259 | 1 | main_formats = main_pix_fmts_yuv444p10; | |
260 | 1 | overlay_formats = overlay_pix_fmts_yuv444p10; | |
261 | 1 | break; | |
262 | 3 | case OVERLAY_FORMAT_RGB: | |
263 | 3 | main_formats = main_pix_fmts_rgb; | |
264 | 3 | overlay_formats = overlay_pix_fmts_rgb; | |
265 | 3 | break; | |
266 | 2 | case OVERLAY_FORMAT_GBRP: | |
267 | 2 | main_formats = main_pix_fmts_gbrp; | |
268 | 2 | overlay_formats = overlay_pix_fmts_gbrp; | |
269 | 2 | break; | |
270 | ✗ | case OVERLAY_FORMAT_AUTO: | |
271 | ✗ | return ff_set_common_formats_from_list(ctx, alpha_pix_fmts); | |
272 | ✗ | default: | |
273 | ✗ | av_assert0(0); | |
274 | } | ||
275 | |||
276 | 23 | formats = ff_make_format_list(main_formats); | |
277 |
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46 | if ((ret = ff_formats_ref(formats, &ctx->inputs[MAIN]->outcfg.formats)) < 0 || |
278 | 23 | (ret = ff_formats_ref(formats, &ctx->outputs[MAIN]->incfg.formats)) < 0) | |
279 | ✗ | return ret; | |
280 | |||
281 | 23 | return ff_formats_ref(ff_make_format_list(overlay_formats), | |
282 | 23 | &ctx->inputs[OVERLAY]->outcfg.formats); | |
283 | } | ||
284 | |||
285 | 23 | static int config_input_overlay(AVFilterLink *inlink) | |
286 | { | ||
287 | 23 | AVFilterContext *ctx = inlink->dst; | |
288 | 23 | OverlayContext *s = inlink->dst->priv; | |
289 | int ret; | ||
290 | 23 | const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format); | |
291 | |||
292 | 23 | av_image_fill_max_pixsteps(s->overlay_pix_step, NULL, pix_desc); | |
293 | |||
294 | /* Finish the configuration by evaluating the expressions | ||
295 | now when both inputs are configured. */ | ||
296 | 23 | s->var_values[VAR_MAIN_W ] = s->var_values[VAR_MW] = ctx->inputs[MAIN ]->w; | |
297 | 23 | s->var_values[VAR_MAIN_H ] = s->var_values[VAR_MH] = ctx->inputs[MAIN ]->h; | |
298 | 23 | s->var_values[VAR_OVERLAY_W] = s->var_values[VAR_OW] = ctx->inputs[OVERLAY]->w; | |
299 | 23 | s->var_values[VAR_OVERLAY_H] = s->var_values[VAR_OH] = ctx->inputs[OVERLAY]->h; | |
300 | 23 | s->var_values[VAR_HSUB] = 1<<pix_desc->log2_chroma_w; | |
301 | 23 | s->var_values[VAR_VSUB] = 1<<pix_desc->log2_chroma_h; | |
302 | 23 | s->var_values[VAR_X] = NAN; | |
303 | 23 | s->var_values[VAR_Y] = NAN; | |
304 | 23 | s->var_values[VAR_N] = 0; | |
305 | 23 | s->var_values[VAR_T] = NAN; | |
306 | #if FF_API_FRAME_PKT | ||
307 | 23 | s->var_values[VAR_POS] = NAN; | |
308 | #endif | ||
309 | |||
310 |
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46 | if ((ret = set_expr(&s->x_pexpr, s->x_expr, "x", ctx)) < 0 || |
311 | 23 | (ret = set_expr(&s->y_pexpr, s->y_expr, "y", ctx)) < 0) | |
312 | ✗ | return ret; | |
313 | |||
314 | 23 | s->overlay_is_packed_rgb = | |
315 | 23 | ff_fill_rgba_map(s->overlay_rgba_map, inlink->format) >= 0; | |
316 | 23 | s->overlay_has_alpha = ff_fmt_is_in(inlink->format, alpha_pix_fmts); | |
317 | |||
318 |
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23 | if (s->eval_mode == EVAL_MODE_INIT) { |
319 | ✗ | eval_expr(ctx); | |
320 | ✗ | av_log(ctx, AV_LOG_VERBOSE, "x:%f xi:%d y:%f yi:%d\n", | |
321 | s->var_values[VAR_X], s->x, | ||
322 | s->var_values[VAR_Y], s->y); | ||
323 | } | ||
324 | |||
325 | 69 | av_log(ctx, AV_LOG_VERBOSE, | |
326 | "main w:%d h:%d fmt:%s overlay w:%d h:%d fmt:%s\n", | ||
327 | 23 | ctx->inputs[MAIN]->w, ctx->inputs[MAIN]->h, | |
328 | 23 | av_get_pix_fmt_name(ctx->inputs[MAIN]->format), | |
329 | 23 | ctx->inputs[OVERLAY]->w, ctx->inputs[OVERLAY]->h, | |
330 | 23 | av_get_pix_fmt_name(ctx->inputs[OVERLAY]->format)); | |
331 | 23 | return 0; | |
332 | } | ||
333 | |||
334 | 23 | static int config_output(AVFilterLink *outlink) | |
335 | { | ||
336 | 23 | AVFilterContext *ctx = outlink->src; | |
337 | 23 | OverlayContext *s = ctx->priv; | |
338 | int ret; | ||
339 | |||
340 |
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23 | if ((ret = ff_framesync_init_dualinput(&s->fs, ctx)) < 0) |
341 | ✗ | return ret; | |
342 | |||
343 | 23 | outlink->w = ctx->inputs[MAIN]->w; | |
344 | 23 | outlink->h = ctx->inputs[MAIN]->h; | |
345 | 23 | outlink->time_base = ctx->inputs[MAIN]->time_base; | |
346 | |||
347 | 23 | return ff_framesync_configure(&s->fs); | |
348 | } | ||
349 | |||
350 | // divide by 255 and round to nearest | ||
351 | // apply a fast variant: (X+127)/255 = ((X+127)*257+257)>>16 = ((X+128)*257)>>16 | ||
352 | #define FAST_DIV255(x) ((((x) + 128) * 257) >> 16) | ||
353 | |||
354 | // calculate the unpremultiplied alpha, applying the general equation: | ||
355 | // alpha = alpha_overlay / ( (alpha_main + alpha_overlay) - (alpha_main * alpha_overlay) ) | ||
356 | // (((x) << 16) - ((x) << 9) + (x)) is a faster version of: 255 * 255 * x | ||
357 | // ((((x) + (y)) << 8) - ((x) + (y)) - (y) * (x)) is a faster version of: 255 * (x + y) | ||
358 | #define UNPREMULTIPLY_ALPHA(x, y) ((((x) << 16) - ((x) << 9) + (x)) / ((((x) + (y)) << 8) - ((x) + (y)) - (y) * (x))) | ||
359 | |||
360 | /** | ||
361 | * Blend image in src to destination buffer dst at position (x, y). | ||
362 | */ | ||
363 | |||
364 | 468 | static av_always_inline void blend_slice_packed_rgb(AVFilterContext *ctx, | |
365 | AVFrame *dst, const AVFrame *src, | ||
366 | int main_has_alpha, int x, int y, | ||
367 | int is_straight, int jobnr, int nb_jobs) | ||
368 | { | ||
369 | 468 | OverlayContext *s = ctx->priv; | |
370 | int i, imax, j, jmax; | ||
371 | 468 | const int src_w = src->width; | |
372 | 468 | const int src_h = src->height; | |
373 | 468 | const int dst_w = dst->width; | |
374 | 468 | const int dst_h = dst->height; | |
375 | uint8_t alpha; ///< the amount of overlay to blend on to main | ||
376 | 468 | const int dr = s->main_rgba_map[R]; | |
377 | 468 | const int dg = s->main_rgba_map[G]; | |
378 | 468 | const int db = s->main_rgba_map[B]; | |
379 | 468 | const int da = s->main_rgba_map[A]; | |
380 | 468 | const int dstep = s->main_pix_step[0]; | |
381 | 468 | const int sr = s->overlay_rgba_map[R]; | |
382 | 468 | const int sg = s->overlay_rgba_map[G]; | |
383 | 468 | const int sb = s->overlay_rgba_map[B]; | |
384 | 468 | const int sa = s->overlay_rgba_map[A]; | |
385 | 468 | const int sstep = s->overlay_pix_step[0]; | |
386 | int slice_start, slice_end; | ||
387 | uint8_t *S, *sp, *d, *dp; | ||
388 | |||
389 |
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468 | i = FFMAX(-y, 0); |
390 | 468 | imax = FFMIN3(-y + dst_h, FFMIN(src_h, dst_h), y + src_h); | |
391 | |||
392 | 468 | slice_start = i + (imax * jobnr) / nb_jobs; | |
393 | 468 | slice_end = i + (imax * (jobnr+1)) / nb_jobs; | |
394 | |||
395 | 468 | sp = src->data[0] + (slice_start) * src->linesize[0]; | |
396 | 468 | dp = dst->data[0] + (y + slice_start) * dst->linesize[0]; | |
397 | |||
398 |
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4724 | for (i = slice_start; i < slice_end; i++) { |
399 |
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4256 | j = FFMAX(-x, 0); |
400 | 4256 | S = sp + j * sstep; | |
401 | 4256 | d = dp + (x+j) * dstep; | |
402 | |||
403 |
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421024 | for (jmax = FFMIN(-x + dst_w, src_w); j < jmax; j++) { |
404 | 416768 | alpha = S[sa]; | |
405 | |||
406 | // if the main channel has an alpha channel, alpha has to be calculated | ||
407 | // to create an un-premultiplied (straight) alpha value | ||
408 |
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416768 | if (main_has_alpha && alpha != 0 && alpha != 255) { |
409 | 15829 | uint8_t alpha_d = d[da]; | |
410 | 15829 | alpha = UNPREMULTIPLY_ALPHA(alpha, alpha_d); | |
411 | } | ||
412 | |||
413 |
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416768 | switch (alpha) { |
414 | 192 | case 0: | |
415 | 192 | break; | |
416 | 384918 | case 255: | |
417 | 384918 | d[dr] = S[sr]; | |
418 | 384918 | d[dg] = S[sg]; | |
419 | 384918 | d[db] = S[sb]; | |
420 | 384918 | break; | |
421 | 31658 | default: | |
422 | // main_value = main_value * (1 - alpha) + overlay_value * alpha | ||
423 | // since alpha is in the range 0-255, the result must divided by 255 | ||
424 |
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31658 | d[dr] = is_straight ? FAST_DIV255(d[dr] * (255 - alpha) + S[sr] * alpha) : |
425 | ✗ | FFMIN(FAST_DIV255(d[dr] * (255 - alpha)) + S[sr], 255); | |
426 |
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31658 | d[dg] = is_straight ? FAST_DIV255(d[dg] * (255 - alpha) + S[sg] * alpha) : |
427 | ✗ | FFMIN(FAST_DIV255(d[dg] * (255 - alpha)) + S[sg], 255); | |
428 |
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31658 | d[db] = is_straight ? FAST_DIV255(d[db] * (255 - alpha) + S[sb] * alpha) : |
429 | ✗ | FFMIN(FAST_DIV255(d[db] * (255 - alpha)) + S[sb], 255); | |
430 | } | ||
431 |
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416768 | if (main_has_alpha) { |
432 |
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16384 | switch (alpha) { |
433 | 96 | case 0: | |
434 | 96 | break; | |
435 | 459 | case 255: | |
436 | 459 | d[da] = S[sa]; | |
437 | 459 | break; | |
438 | 15829 | default: | |
439 | // apply alpha compositing: main_alpha += (1-main_alpha) * overlay_alpha | ||
440 | 15829 | d[da] += FAST_DIV255((255 - d[da]) * S[sa]); | |
441 | } | ||
442 | } | ||
443 | 416768 | d += dstep; | |
444 | 416768 | S += sstep; | |
445 | } | ||
446 | 4256 | dp += dst->linesize[0]; | |
447 | 4256 | sp += src->linesize[0]; | |
448 | } | ||
449 | 468 | } | |
450 | |||
451 | #define DEFINE_BLEND_PLANE(depth, nbits) \ | ||
452 | static av_always_inline void blend_plane_##depth##_##nbits##bits(AVFilterContext *ctx, \ | ||
453 | AVFrame *dst, const AVFrame *src, \ | ||
454 | int src_w, int src_h, \ | ||
455 | int dst_w, int dst_h, \ | ||
456 | int i, int hsub, int vsub, \ | ||
457 | int x, int y, \ | ||
458 | int main_has_alpha, \ | ||
459 | int dst_plane, \ | ||
460 | int dst_offset, \ | ||
461 | int dst_step, \ | ||
462 | int straight, \ | ||
463 | int yuv, \ | ||
464 | int jobnr, \ | ||
465 | int nb_jobs) \ | ||
466 | { \ | ||
467 | OverlayContext *octx = ctx->priv; \ | ||
468 | int src_wp = AV_CEIL_RSHIFT(src_w, hsub); \ | ||
469 | int src_hp = AV_CEIL_RSHIFT(src_h, vsub); \ | ||
470 | int dst_wp = AV_CEIL_RSHIFT(dst_w, hsub); \ | ||
471 | int dst_hp = AV_CEIL_RSHIFT(dst_h, vsub); \ | ||
472 | int yp = y>>vsub; \ | ||
473 | int xp = x>>hsub; \ | ||
474 | uint##depth##_t *s, *sp, *d, *dp, *dap, *a, *da, *ap; \ | ||
475 | int jmax, j, k, kmax; \ | ||
476 | int slice_start, slice_end; \ | ||
477 | const uint##depth##_t max = (1 << nbits) - 1; \ | ||
478 | const uint##depth##_t mid = (1 << (nbits -1)) ; \ | ||
479 | int bytes = depth / 8; \ | ||
480 | \ | ||
481 | dst_step /= bytes; \ | ||
482 | j = FFMAX(-yp, 0); \ | ||
483 | jmax = FFMIN3(-yp + dst_hp, FFMIN(src_hp, dst_hp), yp + src_hp); \ | ||
484 | \ | ||
485 | slice_start = j + (jmax * jobnr) / nb_jobs; \ | ||
486 | slice_end = j + (jmax * (jobnr+1)) / nb_jobs; \ | ||
487 | \ | ||
488 | sp = (uint##depth##_t *)(src->data[i] + (slice_start) * src->linesize[i]); \ | ||
489 | dp = (uint##depth##_t *)(dst->data[dst_plane] \ | ||
490 | + (yp + slice_start) * dst->linesize[dst_plane] \ | ||
491 | + dst_offset); \ | ||
492 | ap = (uint##depth##_t *)(src->data[3] + (slice_start << vsub) * src->linesize[3]); \ | ||
493 | dap = (uint##depth##_t *)(dst->data[3] + ((yp + slice_start) << vsub) * dst->linesize[3]); \ | ||
494 | \ | ||
495 | for (j = slice_start; j < slice_end; j++) { \ | ||
496 | k = FFMAX(-xp, 0); \ | ||
497 | d = dp + (xp+k) * dst_step; \ | ||
498 | s = sp + k; \ | ||
499 | a = ap + (k<<hsub); \ | ||
500 | da = dap + ((xp+k) << hsub); \ | ||
501 | kmax = FFMIN(-xp + dst_wp, src_wp); \ | ||
502 | \ | ||
503 | if (nbits == 8 && ((vsub && j+1 < src_hp) || !vsub) && octx->blend_row[i]) { \ | ||
504 | int c = octx->blend_row[i]((uint8_t*)d, (uint8_t*)da, (uint8_t*)s, \ | ||
505 | (uint8_t*)a, kmax - k, src->linesize[3]); \ | ||
506 | \ | ||
507 | s += c; \ | ||
508 | d += dst_step * c; \ | ||
509 | da += (1 << hsub) * c; \ | ||
510 | a += (1 << hsub) * c; \ | ||
511 | k += c; \ | ||
512 | } \ | ||
513 | for (; k < kmax; k++) { \ | ||
514 | int alpha_v, alpha_h, alpha; \ | ||
515 | \ | ||
516 | /* average alpha for color components, improve quality */ \ | ||
517 | if (hsub && vsub && j+1 < src_hp && k+1 < src_wp) { \ | ||
518 | alpha = (a[0] + a[src->linesize[3]] + \ | ||
519 | a[1] + a[src->linesize[3]+1]) >> 2; \ | ||
520 | } else if (hsub || vsub) { \ | ||
521 | alpha_h = hsub && k+1 < src_wp ? \ | ||
522 | (a[0] + a[1]) >> 1 : a[0]; \ | ||
523 | alpha_v = vsub && j+1 < src_hp ? \ | ||
524 | (a[0] + a[src->linesize[3]]) >> 1 : a[0]; \ | ||
525 | alpha = (alpha_v + alpha_h) >> 1; \ | ||
526 | } else \ | ||
527 | alpha = a[0]; \ | ||
528 | /* if the main channel has an alpha channel, alpha has to be calculated */ \ | ||
529 | /* to create an un-premultiplied (straight) alpha value */ \ | ||
530 | if (main_has_alpha && alpha != 0 && alpha != max) { \ | ||
531 | /* average alpha for color components, improve quality */ \ | ||
532 | uint8_t alpha_d; \ | ||
533 | if (hsub && vsub && j+1 < src_hp && k+1 < src_wp) { \ | ||
534 | alpha_d = (da[0] + da[dst->linesize[3]] + \ | ||
535 | da[1] + da[dst->linesize[3]+1]) >> 2; \ | ||
536 | } else if (hsub || vsub) { \ | ||
537 | alpha_h = hsub && k+1 < src_wp ? \ | ||
538 | (da[0] + da[1]) >> 1 : da[0]; \ | ||
539 | alpha_v = vsub && j+1 < src_hp ? \ | ||
540 | (da[0] + da[dst->linesize[3]]) >> 1 : da[0]; \ | ||
541 | alpha_d = (alpha_v + alpha_h) >> 1; \ | ||
542 | } else \ | ||
543 | alpha_d = da[0]; \ | ||
544 | alpha = UNPREMULTIPLY_ALPHA(alpha, alpha_d); \ | ||
545 | } \ | ||
546 | if (straight) { \ | ||
547 | if (nbits > 8) \ | ||
548 | *d = (*d * (max - alpha) + *s * alpha) / max; \ | ||
549 | else \ | ||
550 | *d = FAST_DIV255(*d * (255 - alpha) + *s * alpha); \ | ||
551 | } else { \ | ||
552 | if (nbits > 8) { \ | ||
553 | if (i && yuv) \ | ||
554 | *d = av_clip((*d * (max - alpha) + *s * alpha) / max + *s - mid, -mid, mid) + mid; \ | ||
555 | else \ | ||
556 | *d = av_clip_uintp2((*d * (max - alpha) + *s * alpha) / max + *s - (16<<(nbits-8)),\ | ||
557 | nbits);\ | ||
558 | } else { \ | ||
559 | if (i && yuv) \ | ||
560 | *d = av_clip(FAST_DIV255((*d - mid) * (max - alpha)) + *s - mid, -mid, mid) + mid; \ | ||
561 | else \ | ||
562 | *d = av_clip_uint8(FAST_DIV255(*d * (255 - alpha)) + *s - 16); \ | ||
563 | } \ | ||
564 | } \ | ||
565 | s++; \ | ||
566 | d += dst_step; \ | ||
567 | da += 1 << hsub; \ | ||
568 | a += 1 << hsub; \ | ||
569 | } \ | ||
570 | dp += dst->linesize[dst_plane] / bytes; \ | ||
571 | sp += src->linesize[i] / bytes; \ | ||
572 | ap += (1 << vsub) * src->linesize[3] / bytes; \ | ||
573 | dap += (1 << vsub) * dst->linesize[3] / bytes; \ | ||
574 | } \ | ||
575 | } | ||
576 |
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182829712 | DEFINE_BLEND_PLANE(8, 8) |
577 |
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151923 | DEFINE_BLEND_PLANE(16, 10) |
578 | |||
579 | #define DEFINE_ALPHA_COMPOSITE(depth, nbits) \ | ||
580 | static inline void alpha_composite_##depth##_##nbits##bits(const AVFrame *src, const AVFrame *dst, \ | ||
581 | int src_w, int src_h, \ | ||
582 | int dst_w, int dst_h, \ | ||
583 | int x, int y, \ | ||
584 | int jobnr, int nb_jobs) \ | ||
585 | { \ | ||
586 | uint##depth##_t alpha; /* the amount of overlay to blend on to main */ \ | ||
587 | uint##depth##_t *s, *sa, *d, *da; \ | ||
588 | int i, imax, j, jmax; \ | ||
589 | int slice_start, slice_end; \ | ||
590 | const uint##depth##_t max = (1 << nbits) - 1; \ | ||
591 | int bytes = depth / 8; \ | ||
592 | \ | ||
593 | imax = FFMIN3(-y + dst_h, FFMIN(src_h, dst_h), y + src_h); \ | ||
594 | i = FFMAX(-y, 0); \ | ||
595 | \ | ||
596 | slice_start = i + (imax * jobnr) / nb_jobs; \ | ||
597 | slice_end = i + ((imax * (jobnr+1)) / nb_jobs); \ | ||
598 | \ | ||
599 | sa = (uint##depth##_t *)(src->data[3] + (slice_start) * src->linesize[3]); \ | ||
600 | da = (uint##depth##_t *)(dst->data[3] + (y + slice_start) * dst->linesize[3]); \ | ||
601 | \ | ||
602 | for (i = slice_start; i < slice_end; i++) { \ | ||
603 | j = FFMAX(-x, 0); \ | ||
604 | s = sa + j; \ | ||
605 | d = da + x+j; \ | ||
606 | \ | ||
607 | for (jmax = FFMIN(-x + dst_w, src_w); j < jmax; j++) { \ | ||
608 | alpha = *s; \ | ||
609 | if (alpha != 0 && alpha != max) { \ | ||
610 | uint8_t alpha_d = *d; \ | ||
611 | alpha = UNPREMULTIPLY_ALPHA(alpha, alpha_d); \ | ||
612 | } \ | ||
613 | if (alpha == max) \ | ||
614 | *d = *s; \ | ||
615 | else if (alpha > 0) { \ | ||
616 | /* apply alpha compositing: main_alpha += (1-main_alpha) * overlay_alpha */ \ | ||
617 | if (nbits > 8) \ | ||
618 | *d += (max - *d) * *s / max; \ | ||
619 | else \ | ||
620 | *d += FAST_DIV255((max - *d) * *s); \ | ||
621 | } \ | ||
622 | d += 1; \ | ||
623 | s += 1; \ | ||
624 | } \ | ||
625 | da += dst->linesize[3] / bytes; \ | ||
626 | sa += src->linesize[3] / bytes; \ | ||
627 | } \ | ||
628 | } | ||
629 |
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842984 | DEFINE_ALPHA_COMPOSITE(8, 8) |
630 | ✗ | DEFINE_ALPHA_COMPOSITE(16, 10) | |
631 | |||
632 | #define DEFINE_BLEND_SLICE_YUV(depth, nbits) \ | ||
633 | static av_always_inline void blend_slice_yuv_##depth##_##nbits##bits(AVFilterContext *ctx, \ | ||
634 | AVFrame *dst, const AVFrame *src, \ | ||
635 | int hsub, int vsub, \ | ||
636 | int main_has_alpha, \ | ||
637 | int x, int y, \ | ||
638 | int is_straight, \ | ||
639 | int jobnr, int nb_jobs) \ | ||
640 | { \ | ||
641 | OverlayContext *s = ctx->priv; \ | ||
642 | const int src_w = src->width; \ | ||
643 | const int src_h = src->height; \ | ||
644 | const int dst_w = dst->width; \ | ||
645 | const int dst_h = dst->height; \ | ||
646 | \ | ||
647 | blend_plane_##depth##_##nbits##bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 0, 0, 0, \ | ||
648 | x, y, main_has_alpha, s->main_desc->comp[0].plane, s->main_desc->comp[0].offset, \ | ||
649 | s->main_desc->comp[0].step, is_straight, 1, jobnr, nb_jobs); \ | ||
650 | blend_plane_##depth##_##nbits##bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 1, hsub, vsub, \ | ||
651 | x, y, main_has_alpha, s->main_desc->comp[1].plane, s->main_desc->comp[1].offset, \ | ||
652 | s->main_desc->comp[1].step, is_straight, 1, jobnr, nb_jobs); \ | ||
653 | blend_plane_##depth##_##nbits##bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 2, hsub, vsub, \ | ||
654 | x, y, main_has_alpha, s->main_desc->comp[2].plane, s->main_desc->comp[2].offset, \ | ||
655 | s->main_desc->comp[2].step, is_straight, 1, jobnr, nb_jobs); \ | ||
656 | \ | ||
657 | if (main_has_alpha) \ | ||
658 | alpha_composite_##depth##_##nbits##bits(src, dst, src_w, src_h, dst_w, dst_h, x, y, \ | ||
659 | jobnr, nb_jobs); \ | ||
660 | } | ||
661 |
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5922 | DEFINE_BLEND_SLICE_YUV(8, 8) |
662 |
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81 | DEFINE_BLEND_SLICE_YUV(16, 10) |
663 | |||
664 | 18 | static av_always_inline void blend_slice_planar_rgb(AVFilterContext *ctx, | |
665 | AVFrame *dst, const AVFrame *src, | ||
666 | int hsub, int vsub, | ||
667 | int main_has_alpha, | ||
668 | int x, int y, | ||
669 | int is_straight, | ||
670 | int jobnr, | ||
671 | int nb_jobs) | ||
672 | { | ||
673 | 18 | OverlayContext *s = ctx->priv; | |
674 | 18 | const int src_w = src->width; | |
675 | 18 | const int src_h = src->height; | |
676 | 18 | const int dst_w = dst->width; | |
677 | 18 | const int dst_h = dst->height; | |
678 | |||
679 | 18 | blend_plane_8_8bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 0, 0, 0, x, y, main_has_alpha, | |
680 | 18 | s->main_desc->comp[1].plane, s->main_desc->comp[1].offset, s->main_desc->comp[1].step, is_straight, 0, | |
681 | jobnr, nb_jobs); | ||
682 | 18 | blend_plane_8_8bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 1, hsub, vsub, x, y, main_has_alpha, | |
683 | 18 | s->main_desc->comp[2].plane, s->main_desc->comp[2].offset, s->main_desc->comp[2].step, is_straight, 0, | |
684 | jobnr, nb_jobs); | ||
685 | 18 | blend_plane_8_8bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 2, hsub, vsub, x, y, main_has_alpha, | |
686 | 18 | s->main_desc->comp[0].plane, s->main_desc->comp[0].offset, s->main_desc->comp[0].step, is_straight, 0, | |
687 | jobnr, nb_jobs); | ||
688 | |||
689 |
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18 | if (main_has_alpha) |
690 | 9 | alpha_composite_8_8bits(src, dst, src_w, src_h, dst_w, dst_h, x, y, jobnr, nb_jobs); | |
691 | 18 | } | |
692 | |||
693 | #define DEFINE_BLEND_SLICE_PLANAR_FMT(format_, blend_slice_fn_suffix_, hsub_, vsub_, main_has_alpha_, direct_) \ | ||
694 | static int blend_slice_##format_(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ | ||
695 | { \ | ||
696 | OverlayContext *s = ctx->priv; \ | ||
697 | ThreadData *td = arg; \ | ||
698 | blend_slice_##blend_slice_fn_suffix_(ctx, td->dst, td->src, \ | ||
699 | hsub_, vsub_, main_has_alpha_, \ | ||
700 | s->x, s->y, direct_, \ | ||
701 | jobnr, nb_jobs); \ | ||
702 | return 0; \ | ||
703 | } | ||
704 | |||
705 | // FMT FN H V A D | ||
706 | 4977 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv420, yuv_8_8bits, 1, 1, 0, 1); | |
707 | 9 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuva420, yuv_8_8bits, 1, 1, 1, 1); | |
708 | 27 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv420p10, yuv_16_10bits, 1, 1, 0, 1); | |
709 | ✗ | DEFINE_BLEND_SLICE_PLANAR_FMT(yuva420p10, yuv_16_10bits, 1, 1, 1, 1); | |
710 | 27 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv422p10, yuv_16_10bits, 1, 0, 0, 1); | |
711 | ✗ | DEFINE_BLEND_SLICE_PLANAR_FMT(yuva422p10, yuv_16_10bits, 1, 0, 1, 1); | |
712 | 9 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv422, yuv_8_8bits, 1, 0, 0, 1); | |
713 | 459 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuva422, yuv_8_8bits, 1, 0, 1, 1); | |
714 | 9 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv444, yuv_8_8bits, 0, 0, 0, 1); | |
715 | 459 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuva444, yuv_8_8bits, 0, 0, 1, 1); | |
716 | 27 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv444p10, yuv_16_10bits, 0, 0, 0, 1); | |
717 | ✗ | DEFINE_BLEND_SLICE_PLANAR_FMT(yuva444p10, yuv_16_10bits, 0, 0, 1, 1); | |
718 | 9 | DEFINE_BLEND_SLICE_PLANAR_FMT(gbrp, planar_rgb, 0, 0, 0, 1); | |
719 | 9 | DEFINE_BLEND_SLICE_PLANAR_FMT(gbrap, planar_rgb, 0, 0, 1, 1); | |
720 | ✗ | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv420_pm, yuv_8_8bits, 1, 1, 0, 0); | |
721 | ✗ | DEFINE_BLEND_SLICE_PLANAR_FMT(yuva420_pm, yuv_8_8bits, 1, 1, 1, 0); | |
722 | ✗ | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv422_pm, yuv_8_8bits, 1, 0, 0, 0); | |
723 | ✗ | DEFINE_BLEND_SLICE_PLANAR_FMT(yuva422_pm, yuv_8_8bits, 1, 0, 1, 0); | |
724 | ✗ | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv444_pm, yuv_8_8bits, 0, 0, 0, 0); | |
725 | ✗ | DEFINE_BLEND_SLICE_PLANAR_FMT(yuva444_pm, yuv_8_8bits, 0, 0, 1, 0); | |
726 | ✗ | DEFINE_BLEND_SLICE_PLANAR_FMT(gbrp_pm, planar_rgb, 0, 0, 0, 0); | |
727 | ✗ | DEFINE_BLEND_SLICE_PLANAR_FMT(gbrap_pm, planar_rgb, 0, 0, 1, 0); | |
728 | |||
729 | #define DEFINE_BLEND_SLICE_PACKED_FMT(format_, blend_slice_fn_suffix_, main_has_alpha_, direct_) \ | ||
730 | static int blend_slice_##format_(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ | ||
731 | { \ | ||
732 | OverlayContext *s = ctx->priv; \ | ||
733 | ThreadData *td = arg; \ | ||
734 | blend_slice_packed_##blend_slice_fn_suffix_(ctx, td->dst, td->src, \ | ||
735 | main_has_alpha_, \ | ||
736 | s->x, s->y, direct_, \ | ||
737 | jobnr, nb_jobs); \ | ||
738 | return 0; \ | ||
739 | } | ||
740 | |||
741 | // FMT FN A D | ||
742 | 459 | DEFINE_BLEND_SLICE_PACKED_FMT(rgb, rgb, 0, 1); | |
743 | 9 | DEFINE_BLEND_SLICE_PACKED_FMT(rgba, rgb, 1, 1); | |
744 | ✗ | DEFINE_BLEND_SLICE_PACKED_FMT(rgb_pm, rgb, 0, 0); | |
745 | ✗ | DEFINE_BLEND_SLICE_PACKED_FMT(rgba_pm, rgb, 1, 0); | |
746 | |||
747 | 23 | static int config_input_main(AVFilterLink *inlink) | |
748 | { | ||
749 | 23 | OverlayContext *s = inlink->dst->priv; | |
750 | 23 | const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format); | |
751 | |||
752 | 23 | av_image_fill_max_pixsteps(s->main_pix_step, NULL, pix_desc); | |
753 | |||
754 | 23 | s->hsub = pix_desc->log2_chroma_w; | |
755 | 23 | s->vsub = pix_desc->log2_chroma_h; | |
756 | |||
757 | 23 | s->main_desc = pix_desc; | |
758 | |||
759 | 23 | s->main_is_packed_rgb = | |
760 | 23 | ff_fill_rgba_map(s->main_rgba_map, inlink->format) >= 0; | |
761 | 23 | s->main_has_alpha = ff_fmt_is_in(inlink->format, alpha_pix_fmts); | |
762 |
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23 | switch (s->format) { |
763 | 9 | case OVERLAY_FORMAT_YUV420: | |
764 |
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9 | s->blend_slice = s->main_has_alpha ? blend_slice_yuva420 : blend_slice_yuv420; |
765 | 9 | break; | |
766 | 1 | case OVERLAY_FORMAT_YUV420P10: | |
767 |
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1 | s->blend_slice = s->main_has_alpha ? blend_slice_yuva420p10 : blend_slice_yuv420p10; |
768 | 1 | break; | |
769 | 3 | case OVERLAY_FORMAT_YUV422: | |
770 |
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3 | s->blend_slice = s->main_has_alpha ? blend_slice_yuva422 : blend_slice_yuv422; |
771 | 3 | break; | |
772 | 1 | case OVERLAY_FORMAT_YUV422P10: | |
773 |
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1 | s->blend_slice = s->main_has_alpha ? blend_slice_yuva422p10 : blend_slice_yuv422p10; |
774 | 1 | break; | |
775 | 3 | case OVERLAY_FORMAT_YUV444: | |
776 |
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3 | s->blend_slice = s->main_has_alpha ? blend_slice_yuva444 : blend_slice_yuv444; |
777 | 3 | break; | |
778 | 1 | case OVERLAY_FORMAT_YUV444P10: | |
779 |
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1 | s->blend_slice = s->main_has_alpha ? blend_slice_yuva444p10 : blend_slice_yuv444p10; |
780 | 1 | break; | |
781 | 3 | case OVERLAY_FORMAT_RGB: | |
782 |
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3 | s->blend_slice = s->main_has_alpha ? blend_slice_rgba : blend_slice_rgb; |
783 | 3 | break; | |
784 | 2 | case OVERLAY_FORMAT_GBRP: | |
785 |
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2 | s->blend_slice = s->main_has_alpha ? blend_slice_gbrap : blend_slice_gbrp; |
786 | 2 | break; | |
787 | ✗ | case OVERLAY_FORMAT_AUTO: | |
788 | ✗ | switch (inlink->format) { | |
789 | ✗ | case AV_PIX_FMT_YUVA420P: | |
790 | ✗ | s->blend_slice = blend_slice_yuva420; | |
791 | ✗ | break; | |
792 | ✗ | case AV_PIX_FMT_YUVA420P10: | |
793 | ✗ | s->blend_slice = blend_slice_yuva420p10; | |
794 | ✗ | break; | |
795 | ✗ | case AV_PIX_FMT_YUVA422P: | |
796 | ✗ | s->blend_slice = blend_slice_yuva422; | |
797 | ✗ | break; | |
798 | ✗ | case AV_PIX_FMT_YUVA422P10: | |
799 | ✗ | s->blend_slice = blend_slice_yuva422p10; | |
800 | ✗ | break; | |
801 | ✗ | case AV_PIX_FMT_YUVA444P: | |
802 | ✗ | s->blend_slice = blend_slice_yuva444; | |
803 | ✗ | break; | |
804 | ✗ | case AV_PIX_FMT_YUVA444P10: | |
805 | ✗ | s->blend_slice = blend_slice_yuva444p10; | |
806 | ✗ | break; | |
807 | ✗ | case AV_PIX_FMT_ARGB: | |
808 | case AV_PIX_FMT_RGBA: | ||
809 | case AV_PIX_FMT_BGRA: | ||
810 | case AV_PIX_FMT_ABGR: | ||
811 | ✗ | s->blend_slice = blend_slice_rgba; | |
812 | ✗ | break; | |
813 | ✗ | case AV_PIX_FMT_GBRAP: | |
814 | ✗ | s->blend_slice = blend_slice_gbrap; | |
815 | ✗ | break; | |
816 | ✗ | default: | |
817 | ✗ | av_assert0(0); | |
818 | break; | ||
819 | } | ||
820 | ✗ | break; | |
821 | } | ||
822 | |||
823 |
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23 | if (!s->alpha_format) |
824 | 23 | goto end; | |
825 | |||
826 | ✗ | switch (s->format) { | |
827 | ✗ | case OVERLAY_FORMAT_YUV420: | |
828 | ✗ | s->blend_slice = s->main_has_alpha ? blend_slice_yuva420_pm : blend_slice_yuv420_pm; | |
829 | ✗ | break; | |
830 | ✗ | case OVERLAY_FORMAT_YUV422: | |
831 | ✗ | s->blend_slice = s->main_has_alpha ? blend_slice_yuva422_pm : blend_slice_yuv422_pm; | |
832 | ✗ | break; | |
833 | ✗ | case OVERLAY_FORMAT_YUV444: | |
834 | ✗ | s->blend_slice = s->main_has_alpha ? blend_slice_yuva444_pm : blend_slice_yuv444_pm; | |
835 | ✗ | break; | |
836 | ✗ | case OVERLAY_FORMAT_RGB: | |
837 | ✗ | s->blend_slice = s->main_has_alpha ? blend_slice_rgba_pm : blend_slice_rgb_pm; | |
838 | ✗ | break; | |
839 | ✗ | case OVERLAY_FORMAT_GBRP: | |
840 | ✗ | s->blend_slice = s->main_has_alpha ? blend_slice_gbrap_pm : blend_slice_gbrp_pm; | |
841 | ✗ | break; | |
842 | ✗ | case OVERLAY_FORMAT_AUTO: | |
843 | ✗ | switch (inlink->format) { | |
844 | ✗ | case AV_PIX_FMT_YUVA420P: | |
845 | ✗ | s->blend_slice = blend_slice_yuva420_pm; | |
846 | ✗ | break; | |
847 | ✗ | case AV_PIX_FMT_YUVA422P: | |
848 | ✗ | s->blend_slice = blend_slice_yuva422_pm; | |
849 | ✗ | break; | |
850 | ✗ | case AV_PIX_FMT_YUVA444P: | |
851 | ✗ | s->blend_slice = blend_slice_yuva444_pm; | |
852 | ✗ | break; | |
853 | ✗ | case AV_PIX_FMT_ARGB: | |
854 | case AV_PIX_FMT_RGBA: | ||
855 | case AV_PIX_FMT_BGRA: | ||
856 | case AV_PIX_FMT_ABGR: | ||
857 | ✗ | s->blend_slice = blend_slice_rgba_pm; | |
858 | ✗ | break; | |
859 | ✗ | case AV_PIX_FMT_GBRAP: | |
860 | ✗ | s->blend_slice = blend_slice_gbrap_pm; | |
861 | ✗ | break; | |
862 | ✗ | default: | |
863 | ✗ | av_assert0(0); | |
864 | break; | ||
865 | } | ||
866 | ✗ | break; | |
867 | } | ||
868 | |||
869 | 23 | end: | |
870 | #if ARCH_X86 | ||
871 | 23 | ff_overlay_init_x86(s, s->format, inlink->format, | |
872 | 23 | s->alpha_format, s->main_has_alpha); | |
873 | #endif | ||
874 | |||
875 | 23 | return 0; | |
876 | } | ||
877 | |||
878 | 724 | static int do_blend(FFFrameSync *fs) | |
879 | { | ||
880 | 724 | AVFilterContext *ctx = fs->parent; | |
881 | AVFrame *mainpic, *second; | ||
882 | 724 | OverlayContext *s = ctx->priv; | |
883 | 724 | AVFilterLink *inlink = ctx->inputs[0]; | |
884 | 724 | FilterLink *inl = ff_filter_link(inlink); | |
885 | int ret; | ||
886 | |||
887 | 724 | ret = ff_framesync_dualinput_get_writable(fs, &mainpic, &second); | |
888 |
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724 | if (ret < 0) |
889 | ✗ | return ret; | |
890 |
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724 | if (!second) |
891 | 3 | return ff_filter_frame(ctx->outputs[0], mainpic); | |
892 | |||
893 |
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721 | if (s->eval_mode == EVAL_MODE_FRAME) { |
894 | |||
895 | 721 | s->var_values[VAR_N] = inl->frame_count_out; | |
896 | 1442 | s->var_values[VAR_T] = mainpic->pts == AV_NOPTS_VALUE ? | |
897 |
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721 | NAN : mainpic->pts * av_q2d(inlink->time_base); |
898 | #if FF_API_FRAME_PKT | ||
899 | FF_DISABLE_DEPRECATION_WARNINGS | ||
900 | { | ||
901 | 721 | int64_t pos = mainpic->pkt_pos; | |
902 |
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721 | s->var_values[VAR_POS] = pos == -1 ? NAN : pos; |
903 | } | ||
904 | FF_ENABLE_DEPRECATION_WARNINGS | ||
905 | #endif | ||
906 | |||
907 | 721 | s->var_values[VAR_OVERLAY_W] = s->var_values[VAR_OW] = second->width; | |
908 | 721 | s->var_values[VAR_OVERLAY_H] = s->var_values[VAR_OH] = second->height; | |
909 | 721 | s->var_values[VAR_MAIN_W ] = s->var_values[VAR_MW] = mainpic->width; | |
910 | 721 | s->var_values[VAR_MAIN_H ] = s->var_values[VAR_MH] = mainpic->height; | |
911 | |||
912 | 721 | eval_expr(ctx); | |
913 | 721 | av_log(ctx, AV_LOG_DEBUG, "n:%f t:%f x:%f xi:%d y:%f yi:%d\n", | |
914 | s->var_values[VAR_N], s->var_values[VAR_T], | ||
915 | s->var_values[VAR_X], s->x, | ||
916 | s->var_values[VAR_Y], s->y); | ||
917 | } | ||
918 | |||
919 |
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721 | if (s->x < mainpic->width && s->x + second->width >= 0 && |
920 |
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721 | s->y < mainpic->height && s->y + second->height >= 0) { |
921 | ThreadData td; | ||
922 | |||
923 | 721 | td.dst = mainpic; | |
924 | 721 | td.src = second; | |
925 |
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721 | ff_filter_execute(ctx, s->blend_slice, &td, NULL, FFMIN(FFMAX(1, FFMIN3(s->y + second->height, FFMIN(second->height, mainpic->height), mainpic->height - s->y)), |
926 | ff_filter_get_nb_threads(ctx))); | ||
927 | } | ||
928 | 721 | return ff_filter_frame(ctx->outputs[0], mainpic); | |
929 | } | ||
930 | |||
931 | 46 | static av_cold int init(AVFilterContext *ctx) | |
932 | { | ||
933 | 46 | OverlayContext *s = ctx->priv; | |
934 | |||
935 | 46 | s->fs.on_event = do_blend; | |
936 | 46 | return 0; | |
937 | } | ||
938 | |||
939 | 1860 | static int activate(AVFilterContext *ctx) | |
940 | { | ||
941 | 1860 | OverlayContext *s = ctx->priv; | |
942 | 1860 | return ff_framesync_activate(&s->fs); | |
943 | } | ||
944 | |||
945 | #define OFFSET(x) offsetof(OverlayContext, x) | ||
946 | #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM | ||
947 | |||
948 | static const AVOption overlay_options[] = { | ||
949 | { "x", "set the x expression", OFFSET(x_expr), AV_OPT_TYPE_STRING, {.str = "0"}, 0, 0, FLAGS }, | ||
950 | { "y", "set the y expression", OFFSET(y_expr), AV_OPT_TYPE_STRING, {.str = "0"}, 0, 0, FLAGS }, | ||
951 | { "eof_action", "Action to take when encountering EOF from secondary input ", | ||
952 | OFFSET(fs.opt_eof_action), AV_OPT_TYPE_INT, { .i64 = EOF_ACTION_REPEAT }, | ||
953 | EOF_ACTION_REPEAT, EOF_ACTION_PASS, .flags = FLAGS, .unit = "eof_action" }, | ||
954 | { "repeat", "Repeat the previous frame.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_REPEAT }, .flags = FLAGS, .unit = "eof_action" }, | ||
955 | { "endall", "End both streams.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_ENDALL }, .flags = FLAGS, .unit = "eof_action" }, | ||
956 | { "pass", "Pass through the main input.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_PASS }, .flags = FLAGS, .unit = "eof_action" }, | ||
957 | { "eval", "specify when to evaluate expressions", OFFSET(eval_mode), AV_OPT_TYPE_INT, {.i64 = EVAL_MODE_FRAME}, 0, EVAL_MODE_NB-1, FLAGS, .unit = "eval" }, | ||
958 | { "init", "eval expressions once during initialization", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_INIT}, .flags = FLAGS, .unit = "eval" }, | ||
959 | { "frame", "eval expressions per-frame", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_FRAME}, .flags = FLAGS, .unit = "eval" }, | ||
960 | { "shortest", "force termination when the shortest input terminates", OFFSET(fs.opt_shortest), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS }, | ||
961 | { "format", "set output format", OFFSET(format), AV_OPT_TYPE_INT, {.i64=OVERLAY_FORMAT_YUV420}, 0, OVERLAY_FORMAT_NB-1, FLAGS, .unit = "format" }, | ||
962 | { "yuv420", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV420}, .flags = FLAGS, .unit = "format" }, | ||
963 | { "yuv420p10", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV420P10}, .flags = FLAGS, .unit = "format" }, | ||
964 | { "yuv422", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV422}, .flags = FLAGS, .unit = "format" }, | ||
965 | { "yuv422p10", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV422P10}, .flags = FLAGS, .unit = "format" }, | ||
966 | { "yuv444", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV444}, .flags = FLAGS, .unit = "format" }, | ||
967 | { "yuv444p10", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV444P10}, .flags = FLAGS, .unit = "format" }, | ||
968 | { "rgb", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_RGB}, .flags = FLAGS, .unit = "format" }, | ||
969 | { "gbrp", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_GBRP}, .flags = FLAGS, .unit = "format" }, | ||
970 | { "auto", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_AUTO}, .flags = FLAGS, .unit = "format" }, | ||
971 | { "repeatlast", "repeat overlay of the last overlay frame", OFFSET(fs.opt_repeatlast), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS }, | ||
972 | { "alpha", "alpha format", OFFSET(alpha_format), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, .unit = "alpha_format" }, | ||
973 | { "straight", "", 0, AV_OPT_TYPE_CONST, {.i64=0}, .flags = FLAGS, .unit = "alpha_format" }, | ||
974 | { "premultiplied", "", 0, AV_OPT_TYPE_CONST, {.i64=1}, .flags = FLAGS, .unit = "alpha_format" }, | ||
975 | { NULL } | ||
976 | }; | ||
977 | |||
978 |
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420 | FRAMESYNC_DEFINE_CLASS(overlay, OverlayContext, fs); |
979 | |||
980 | static const AVFilterPad avfilter_vf_overlay_inputs[] = { | ||
981 | { | ||
982 | .name = "main", | ||
983 | .type = AVMEDIA_TYPE_VIDEO, | ||
984 | .config_props = config_input_main, | ||
985 | }, | ||
986 | { | ||
987 | .name = "overlay", | ||
988 | .type = AVMEDIA_TYPE_VIDEO, | ||
989 | .config_props = config_input_overlay, | ||
990 | }, | ||
991 | }; | ||
992 | |||
993 | static const AVFilterPad avfilter_vf_overlay_outputs[] = { | ||
994 | { | ||
995 | .name = "default", | ||
996 | .type = AVMEDIA_TYPE_VIDEO, | ||
997 | .config_props = config_output, | ||
998 | }, | ||
999 | }; | ||
1000 | |||
1001 | const AVFilter ff_vf_overlay = { | ||
1002 | .name = "overlay", | ||
1003 | .description = NULL_IF_CONFIG_SMALL("Overlay a video source on top of the input."), | ||
1004 | .preinit = overlay_framesync_preinit, | ||
1005 | .init = init, | ||
1006 | .uninit = uninit, | ||
1007 | .priv_size = sizeof(OverlayContext), | ||
1008 | .priv_class = &overlay_class, | ||
1009 | .activate = activate, | ||
1010 | .process_command = process_command, | ||
1011 | FILTER_INPUTS(avfilter_vf_overlay_inputs), | ||
1012 | FILTER_OUTPUTS(avfilter_vf_overlay_outputs), | ||
1013 | FILTER_QUERY_FUNC(query_formats), | ||
1014 | .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | | ||
1015 | AVFILTER_FLAG_SLICE_THREADS, | ||
1016 | }; | ||
1017 |