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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 | "t", ///< timestamp expressed in seconds | ||
59 | NULL | ||
60 | }; | ||
61 | |||
62 | #define MAIN 0 | ||
63 | #define OVERLAY 1 | ||
64 | |||
65 | #define R 0 | ||
66 | #define G 1 | ||
67 | #define B 2 | ||
68 | #define A 3 | ||
69 | |||
70 | #define Y 0 | ||
71 | #define U 1 | ||
72 | #define V 2 | ||
73 | |||
74 | enum EvalMode { | ||
75 | EVAL_MODE_INIT, | ||
76 | EVAL_MODE_FRAME, | ||
77 | EVAL_MODE_NB | ||
78 | }; | ||
79 | |||
80 | 46 | static av_cold void uninit(AVFilterContext *ctx) | |
81 | { | ||
82 | 46 | OverlayContext *s = ctx->priv; | |
83 | |||
84 | 46 | ff_framesync_uninit(&s->fs); | |
85 | 46 | av_expr_free(s->x_pexpr); s->x_pexpr = NULL; | |
86 | 46 | av_expr_free(s->y_pexpr); s->y_pexpr = NULL; | |
87 | 46 | } | |
88 | |||
89 | 1470 | static inline int normalize_xy(double d, int chroma_sub) | |
90 | { | ||
91 |
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1470 | if (isnan(d)) |
92 | ✗ | return INT_MAX; | |
93 | 1470 | return (int)d & ~((1 << chroma_sub) - 1); | |
94 | } | ||
95 | |||
96 | 735 | static void eval_expr(AVFilterContext *ctx) | |
97 | { | ||
98 | 735 | OverlayContext *s = ctx->priv; | |
99 | |||
100 | 735 | s->var_values[VAR_X] = av_expr_eval(s->x_pexpr, s->var_values, NULL); | |
101 | 735 | s->var_values[VAR_Y] = av_expr_eval(s->y_pexpr, s->var_values, NULL); | |
102 | /* It is necessary if x is expressed from y */ | ||
103 | 735 | s->var_values[VAR_X] = av_expr_eval(s->x_pexpr, s->var_values, NULL); | |
104 | 735 | s->x = normalize_xy(s->var_values[VAR_X], s->hsub); | |
105 | 735 | s->y = normalize_xy(s->var_values[VAR_Y], s->vsub); | |
106 | 735 | } | |
107 | |||
108 | 46 | static int set_expr(AVExpr **pexpr, const char *expr, const char *option, void *log_ctx) | |
109 | { | ||
110 | int ret; | ||
111 | 46 | AVExpr *old = NULL; | |
112 | |||
113 |
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46 | if (*pexpr) |
114 | ✗ | old = *pexpr; | |
115 | 46 | ret = av_expr_parse(pexpr, expr, var_names, | |
116 | NULL, NULL, NULL, NULL, 0, log_ctx); | ||
117 |
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46 | if (ret < 0) { |
118 | ✗ | av_log(log_ctx, AV_LOG_ERROR, | |
119 | "Error when evaluating the expression '%s' for %s\n", | ||
120 | expr, option); | ||
121 | ✗ | *pexpr = old; | |
122 | ✗ | return ret; | |
123 | } | ||
124 | |||
125 | 46 | av_expr_free(old); | |
126 | 46 | return 0; | |
127 | } | ||
128 | |||
129 | ✗ | static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, | |
130 | char *res, int res_len, int flags) | ||
131 | { | ||
132 | ✗ | OverlayContext *s = ctx->priv; | |
133 | int ret; | ||
134 | |||
135 | ✗ | if (!strcmp(cmd, "x")) | |
136 | ✗ | ret = set_expr(&s->x_pexpr, args, cmd, ctx); | |
137 | ✗ | else if (!strcmp(cmd, "y")) | |
138 | ✗ | ret = set_expr(&s->y_pexpr, args, cmd, ctx); | |
139 | else | ||
140 | ✗ | ret = AVERROR(ENOSYS); | |
141 | |||
142 | ✗ | if (ret < 0) | |
143 | ✗ | return ret; | |
144 | |||
145 | ✗ | if (s->eval_mode == EVAL_MODE_INIT) { | |
146 | ✗ | eval_expr(ctx); | |
147 | ✗ | av_log(ctx, AV_LOG_VERBOSE, "x:%f xi:%d y:%f yi:%d\n", | |
148 | s->var_values[VAR_X], s->x, | ||
149 | s->var_values[VAR_Y], s->y); | ||
150 | } | ||
151 | ✗ | return ret; | |
152 | } | ||
153 | |||
154 | static const enum AVPixelFormat alpha_pix_fmts[] = { | ||
155 | AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, | ||
156 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, | ||
157 | AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, AV_PIX_FMT_RGBA, | ||
158 | AV_PIX_FMT_BGRA, AV_PIX_FMT_GBRAP, AV_PIX_FMT_NONE | ||
159 | }; | ||
160 | |||
161 | 23 | static int query_formats(const AVFilterContext *ctx, | |
162 | AVFilterFormatsConfig **cfg_in, | ||
163 | AVFilterFormatsConfig **cfg_out) | ||
164 | { | ||
165 | 23 | const OverlayContext *s = ctx->priv; | |
166 | |||
167 | /* overlay formats contains alpha, for avoiding conversion with alpha information loss */ | ||
168 | static const enum AVPixelFormat main_pix_fmts_yuv420[] = { | ||
169 | AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVA420P, | ||
170 | AV_PIX_FMT_NV12, AV_PIX_FMT_NV21, | ||
171 | AV_PIX_FMT_NONE | ||
172 | }; | ||
173 | static const enum AVPixelFormat overlay_pix_fmts_yuv420[] = { | ||
174 | AV_PIX_FMT_YUVA420P, AV_PIX_FMT_NONE | ||
175 | }; | ||
176 | |||
177 | static const enum AVPixelFormat main_pix_fmts_yuv420p10[] = { | ||
178 | AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUVA420P10, | ||
179 | AV_PIX_FMT_NONE | ||
180 | }; | ||
181 | static const enum AVPixelFormat overlay_pix_fmts_yuv420p10[] = { | ||
182 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_NONE | ||
183 | }; | ||
184 | |||
185 | static const enum AVPixelFormat main_pix_fmts_yuv422[] = { | ||
186 | AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_NONE | ||
187 | }; | ||
188 | static const enum AVPixelFormat overlay_pix_fmts_yuv422[] = { | ||
189 | AV_PIX_FMT_YUVA422P, AV_PIX_FMT_NONE | ||
190 | }; | ||
191 | |||
192 | static const enum AVPixelFormat main_pix_fmts_yuv422p10[] = { | ||
193 | AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_NONE | ||
194 | }; | ||
195 | static const enum AVPixelFormat overlay_pix_fmts_yuv422p10[] = { | ||
196 | AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_NONE | ||
197 | }; | ||
198 | |||
199 | static const enum AVPixelFormat main_pix_fmts_yuv444[] = { | ||
200 | AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE | ||
201 | }; | ||
202 | static const enum AVPixelFormat overlay_pix_fmts_yuv444[] = { | ||
203 | AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE | ||
204 | }; | ||
205 | |||
206 | static const enum AVPixelFormat main_pix_fmts_yuv444p10[] = { | ||
207 | AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_NONE | ||
208 | }; | ||
209 | static const enum AVPixelFormat overlay_pix_fmts_yuv444p10[] = { | ||
210 | AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_NONE | ||
211 | }; | ||
212 | |||
213 | static const enum AVPixelFormat main_pix_fmts_gbrp[] = { | ||
214 | AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_NONE | ||
215 | }; | ||
216 | static const enum AVPixelFormat overlay_pix_fmts_gbrp[] = { | ||
217 | AV_PIX_FMT_GBRAP, AV_PIX_FMT_NONE | ||
218 | }; | ||
219 | |||
220 | static const enum AVPixelFormat main_pix_fmts_rgb[] = { | ||
221 | AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA, | ||
222 | AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA, | ||
223 | AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, | ||
224 | AV_PIX_FMT_NONE | ||
225 | }; | ||
226 | static const enum AVPixelFormat overlay_pix_fmts_rgb[] = { | ||
227 | AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA, | ||
228 | AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA, | ||
229 | AV_PIX_FMT_NONE | ||
230 | }; | ||
231 | |||
232 | const enum AVPixelFormat *main_formats, *overlay_formats; | ||
233 | AVFilterFormats *formats; | ||
234 | int ret; | ||
235 | |||
236 |
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23 | if (s->alpha_mode != AVALPHA_MODE_UNSPECIFIED) { |
237 | ✗ | formats = ff_make_formats_list_singleton(s->alpha_mode); | |
238 | ✗ | ret = ff_formats_ref(formats, &cfg_in[OVERLAY]->alpha_modes); | |
239 | ✗ | if (ret < 0) | |
240 | ✗ | return ret; | |
241 | } | ||
242 | |||
243 |
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23 | switch (s->format) { |
244 | 9 | case OVERLAY_FORMAT_YUV420: | |
245 | 9 | main_formats = main_pix_fmts_yuv420; | |
246 | 9 | overlay_formats = overlay_pix_fmts_yuv420; | |
247 | 9 | break; | |
248 | 1 | case OVERLAY_FORMAT_YUV420P10: | |
249 | 1 | main_formats = main_pix_fmts_yuv420p10; | |
250 | 1 | overlay_formats = overlay_pix_fmts_yuv420p10; | |
251 | 1 | break; | |
252 | 3 | case OVERLAY_FORMAT_YUV422: | |
253 | 3 | main_formats = main_pix_fmts_yuv422; | |
254 | 3 | overlay_formats = overlay_pix_fmts_yuv422; | |
255 | 3 | break; | |
256 | 1 | case OVERLAY_FORMAT_YUV422P10: | |
257 | 1 | main_formats = main_pix_fmts_yuv422p10; | |
258 | 1 | overlay_formats = overlay_pix_fmts_yuv422p10; | |
259 | 1 | break; | |
260 | 3 | case OVERLAY_FORMAT_YUV444: | |
261 | 3 | main_formats = main_pix_fmts_yuv444; | |
262 | 3 | overlay_formats = overlay_pix_fmts_yuv444; | |
263 | 3 | break; | |
264 | 1 | case OVERLAY_FORMAT_YUV444P10: | |
265 | 1 | main_formats = main_pix_fmts_yuv444p10; | |
266 | 1 | overlay_formats = overlay_pix_fmts_yuv444p10; | |
267 | 1 | break; | |
268 | 3 | case OVERLAY_FORMAT_RGB: | |
269 | 3 | main_formats = main_pix_fmts_rgb; | |
270 | 3 | overlay_formats = overlay_pix_fmts_rgb; | |
271 | 3 | break; | |
272 | 2 | case OVERLAY_FORMAT_GBRP: | |
273 | 2 | main_formats = main_pix_fmts_gbrp; | |
274 | 2 | overlay_formats = overlay_pix_fmts_gbrp; | |
275 | 2 | break; | |
276 | ✗ | case OVERLAY_FORMAT_AUTO: | |
277 | ✗ | return ff_set_common_formats_from_list2(ctx, cfg_in, cfg_out, alpha_pix_fmts); | |
278 | ✗ | default: | |
279 | ✗ | av_assert0(0); | |
280 | } | ||
281 | |||
282 | 23 | formats = ff_make_format_list(main_formats); | |
283 |
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46 | if ((ret = ff_formats_ref(formats, &cfg_in[MAIN]->formats)) < 0 || |
284 | 23 | (ret = ff_formats_ref(formats, &cfg_out[MAIN]->formats)) < 0) | |
285 | ✗ | return ret; | |
286 | |||
287 | 23 | return ff_formats_ref(ff_make_format_list(overlay_formats), | |
288 | 23 | &cfg_in[OVERLAY]->formats); | |
289 | } | ||
290 | |||
291 | 23 | static int config_input_overlay(AVFilterLink *inlink) | |
292 | { | ||
293 | 23 | AVFilterContext *ctx = inlink->dst; | |
294 | 23 | OverlayContext *s = inlink->dst->priv; | |
295 | int ret; | ||
296 | 23 | const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format); | |
297 | |||
298 | 23 | av_image_fill_max_pixsteps(s->overlay_pix_step, NULL, pix_desc); | |
299 | |||
300 | /* Finish the configuration by evaluating the expressions | ||
301 | now when both inputs are configured. */ | ||
302 | 23 | s->var_values[VAR_MAIN_W ] = s->var_values[VAR_MW] = ctx->inputs[MAIN ]->w; | |
303 | 23 | s->var_values[VAR_MAIN_H ] = s->var_values[VAR_MH] = ctx->inputs[MAIN ]->h; | |
304 | 23 | s->var_values[VAR_OVERLAY_W] = s->var_values[VAR_OW] = ctx->inputs[OVERLAY]->w; | |
305 | 23 | s->var_values[VAR_OVERLAY_H] = s->var_values[VAR_OH] = ctx->inputs[OVERLAY]->h; | |
306 | 23 | s->var_values[VAR_HSUB] = 1<<pix_desc->log2_chroma_w; | |
307 | 23 | s->var_values[VAR_VSUB] = 1<<pix_desc->log2_chroma_h; | |
308 | 23 | s->var_values[VAR_X] = NAN; | |
309 | 23 | s->var_values[VAR_Y] = NAN; | |
310 | 23 | s->var_values[VAR_N] = 0; | |
311 | 23 | s->var_values[VAR_T] = NAN; | |
312 | |||
313 |
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46 | if ((ret = set_expr(&s->x_pexpr, s->x_expr, "x", ctx)) < 0 || |
314 | 23 | (ret = set_expr(&s->y_pexpr, s->y_expr, "y", ctx)) < 0) | |
315 | ✗ | return ret; | |
316 | |||
317 | 23 | s->overlay_is_packed_rgb = | |
318 | 23 | ff_fill_rgba_map(s->overlay_rgba_map, inlink->format) >= 0; | |
319 | 23 | s->overlay_has_alpha = ff_fmt_is_in(inlink->format, alpha_pix_fmts); | |
320 | |||
321 |
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23 | if (s->eval_mode == EVAL_MODE_INIT) { |
322 | ✗ | eval_expr(ctx); | |
323 | ✗ | av_log(ctx, AV_LOG_VERBOSE, "x:%f xi:%d y:%f yi:%d\n", | |
324 | s->var_values[VAR_X], s->x, | ||
325 | s->var_values[VAR_Y], s->y); | ||
326 | } | ||
327 | |||
328 | 69 | av_log(ctx, AV_LOG_VERBOSE, | |
329 | "main w:%d h:%d fmt:%s overlay w:%d h:%d fmt:%s\n", | ||
330 | 23 | ctx->inputs[MAIN]->w, ctx->inputs[MAIN]->h, | |
331 | 23 | av_get_pix_fmt_name(ctx->inputs[MAIN]->format), | |
332 | 23 | ctx->inputs[OVERLAY]->w, ctx->inputs[OVERLAY]->h, | |
333 | 23 | av_get_pix_fmt_name(ctx->inputs[OVERLAY]->format)); | |
334 | 23 | return 0; | |
335 | } | ||
336 | |||
337 | 23 | static int config_output(AVFilterLink *outlink) | |
338 | { | ||
339 | 23 | AVFilterContext *ctx = outlink->src; | |
340 | 23 | OverlayContext *s = ctx->priv; | |
341 | int ret; | ||
342 | |||
343 |
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23 | if ((ret = ff_framesync_init_dualinput(&s->fs, ctx)) < 0) |
344 | ✗ | return ret; | |
345 | |||
346 | 23 | outlink->w = ctx->inputs[MAIN]->w; | |
347 | 23 | outlink->h = ctx->inputs[MAIN]->h; | |
348 | 23 | outlink->time_base = ctx->inputs[MAIN]->time_base; | |
349 | |||
350 | 23 | return ff_framesync_configure(&s->fs); | |
351 | } | ||
352 | |||
353 | // divide by 255 and round to nearest | ||
354 | // apply a fast variant: (X+127)/255 = ((X+127)*257+257)>>16 = ((X+128)*257)>>16 | ||
355 | #define FAST_DIV255(x) ((((x) + 128) * 257) >> 16) | ||
356 | |||
357 | // calculate the unpremultiplied alpha, applying the general equation: | ||
358 | // alpha = alpha_overlay / ( (alpha_main + alpha_overlay) - (alpha_main * alpha_overlay) ) | ||
359 | // (((x) << 16) - ((x) << 9) + (x)) is a faster version of: 255 * 255 * x | ||
360 | // ((((x) + (y)) << 8) - ((x) + (y)) - (y) * (x)) is a faster version of: 255 * (x + y) | ||
361 | // this is only needed when blending onto straight alpha main images | ||
362 | #define UNPREMULTIPLY_ALPHA(x, y) ((((x) << 16) - ((x) << 9) + (x)) / ((((x) + (y)) << 8) - ((x) + (y)) - (y) * (x))) | ||
363 | |||
364 | #define PTR_ADD(TYPE, ptr, byte_addend) ((TYPE*)((uint8_t*)ptr + (byte_addend))) | ||
365 | #define CPTR_ADD(TYPE, ptr, byte_addend) ((const TYPE*)((const uint8_t*)ptr + (byte_addend))) | ||
366 | |||
367 | /** | ||
368 | * Blend image in src to destination buffer dst at position (x, y). | ||
369 | */ | ||
370 | |||
371 | 486 | static av_always_inline void blend_slice_packed_rgb(AVFilterContext *ctx, | |
372 | AVFrame *dst, const AVFrame *src, | ||
373 | int main_has_alpha, int x, int y, | ||
374 | int overlay_straight, int main_straight, | ||
375 | int jobnr, int nb_jobs) | ||
376 | { | ||
377 | 486 | OverlayContext *s = ctx->priv; | |
378 | int i, imax, j, jmax; | ||
379 | 486 | const int src_w = src->width; | |
380 | 486 | const int src_h = src->height; | |
381 | 486 | const int dst_w = dst->width; | |
382 | 486 | const int dst_h = dst->height; | |
383 | uint8_t alpha; ///< the amount of overlay to blend on to main | ||
384 | 486 | const int dr = s->main_rgba_map[R]; | |
385 | 486 | const int dg = s->main_rgba_map[G]; | |
386 | 486 | const int db = s->main_rgba_map[B]; | |
387 | 486 | const int da = s->main_rgba_map[A]; | |
388 | 486 | const int dstep = s->main_pix_step[0]; | |
389 | 486 | const int sr = s->overlay_rgba_map[R]; | |
390 | 486 | const int sg = s->overlay_rgba_map[G]; | |
391 | 486 | const int sb = s->overlay_rgba_map[B]; | |
392 | 486 | const int sa = s->overlay_rgba_map[A]; | |
393 | 486 | const int sstep = s->overlay_pix_step[0]; | |
394 | int slice_start, slice_end; | ||
395 | uint8_t *S, *sp, *d, *dp; | ||
396 | |||
397 |
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486 | i = FFMAX(-y, 0); |
398 | 486 | imax = FFMIN3(-y + dst_h, FFMIN(src_h, dst_h), y + src_h); | |
399 | |||
400 | 486 | slice_start = i + (imax * jobnr) / nb_jobs; | |
401 | 486 | slice_end = i + (imax * (jobnr+1)) / nb_jobs; | |
402 | |||
403 | 486 | sp = src->data[0] + (slice_start) * src->linesize[0]; | |
404 | 486 | dp = dst->data[0] + (y + slice_start) * dst->linesize[0]; | |
405 | |||
406 |
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4998 | for (i = slice_start; i < slice_end; i++) { |
407 |
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4512 | j = FFMAX(-x, 0); |
408 | 4512 | S = sp + j * sstep; | |
409 | 4512 | d = dp + (x+j) * dstep; | |
410 | |||
411 |
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454048 | for (jmax = FFMIN(-x + dst_w, src_w); j < jmax; j++) { |
412 | 449536 | alpha = S[sa]; | |
413 | |||
414 | // if the main channel has an alpha channel, alpha has to be calculated | ||
415 | // to create an un-premultiplied (straight) alpha value | ||
416 |
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449536 | if (main_straight && alpha != 0 && alpha != 255) { |
417 | 31658 | uint8_t alpha_d = d[da]; | |
418 | 31658 | alpha = UNPREMULTIPLY_ALPHA(alpha, alpha_d); | |
419 | } | ||
420 | |||
421 |
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449536 | switch (alpha) { |
422 | 384 | case 0: | |
423 | 384 | break; | |
424 | 385836 | case 255: | |
425 | 385836 | d[dr] = S[sr]; | |
426 | 385836 | d[dg] = S[sg]; | |
427 | 385836 | d[db] = S[sb]; | |
428 | 385836 | break; | |
429 | 63316 | default: | |
430 | // main_value = main_value * (1 - alpha) + overlay_value * alpha | ||
431 | // since alpha is in the range 0-255, the result must divided by 255 | ||
432 |
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63316 | d[dr] = overlay_straight ? FAST_DIV255(d[dr] * (255 - alpha) + S[sr] * alpha) : |
433 | ✗ | FFMIN(FAST_DIV255(d[dr] * (255 - alpha)) + S[sr], 255); | |
434 |
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63316 | d[dg] = overlay_straight ? FAST_DIV255(d[dg] * (255 - alpha) + S[sg] * alpha) : |
435 | ✗ | FFMIN(FAST_DIV255(d[dg] * (255 - alpha)) + S[sg], 255); | |
436 |
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63316 | d[db] = overlay_straight ? FAST_DIV255(d[db] * (255 - alpha) + S[sb] * alpha) : |
437 | ✗ | FFMIN(FAST_DIV255(d[db] * (255 - alpha)) + S[sb], 255); | |
438 | } | ||
439 |
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449536 | if (main_has_alpha) { |
440 |
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32768 | switch (alpha) { |
441 | 192 | case 0: | |
442 | 192 | break; | |
443 | 918 | case 255: | |
444 | 918 | d[da] = S[sa]; | |
445 | 918 | break; | |
446 | 31658 | default: | |
447 | // apply alpha compositing: main_alpha += (1-main_alpha) * overlay_alpha | ||
448 | 31658 | d[da] += FAST_DIV255((255 - d[da]) * S[sa]); | |
449 | } | ||
450 | } | ||
451 | 449536 | d += dstep; | |
452 | 449536 | S += sstep; | |
453 | } | ||
454 | 4512 | dp += dst->linesize[0]; | |
455 | 4512 | sp += src->linesize[0]; | |
456 | } | ||
457 | 486 | } | |
458 | |||
459 | #define DEFINE_BLEND_PLANE(depth, T, nbits) \ | ||
460 | static av_always_inline void blend_plane_##depth##_##nbits##bits(AVFilterContext *ctx, \ | ||
461 | AVFrame *dst, const AVFrame *src, \ | ||
462 | int src_w, int src_h, \ | ||
463 | int dst_w, int dst_h, \ | ||
464 | int i, int hsub, int vsub, \ | ||
465 | int x, int y, \ | ||
466 | int main_straight, \ | ||
467 | int dst_plane, \ | ||
468 | int dst_offset, \ | ||
469 | int dst_step, \ | ||
470 | int overlay_straight, \ | ||
471 | int yuv, \ | ||
472 | int jobnr, \ | ||
473 | int nb_jobs) \ | ||
474 | { \ | ||
475 | OverlayContext *octx = ctx->priv; \ | ||
476 | int src_wp = AV_CEIL_RSHIFT(src_w, hsub); \ | ||
477 | int src_hp = AV_CEIL_RSHIFT(src_h, vsub); \ | ||
478 | int dst_wp = AV_CEIL_RSHIFT(dst_w, hsub); \ | ||
479 | int dst_hp = AV_CEIL_RSHIFT(dst_h, vsub); \ | ||
480 | int yp = y>>vsub; \ | ||
481 | int xp = x>>hsub; \ | ||
482 | const T max = (1 << nbits) - 1; \ | ||
483 | const T mid = (1 << (nbits - 1)); \ | ||
484 | \ | ||
485 | const int jmin = FFMAX(-yp, 0), jmax = FFMIN3(-yp + dst_hp, FFMIN(src_hp, dst_hp), yp + src_hp); \ | ||
486 | const int kmin = FFMAX(-xp, 0), kmax = FFMIN(-xp + dst_wp, src_wp); \ | ||
487 | const int slice_start = jmin + (jmax * jobnr) / nb_jobs; \ | ||
488 | const int slice_end = jmin + (jmax * (jobnr + 1)) / nb_jobs; \ | ||
489 | \ | ||
490 | const uint8_t *sp = src->data[i] + (slice_start) * src->linesize[i]; \ | ||
491 | uint8_t *dp = dst->data[dst_plane] \ | ||
492 | + (yp + slice_start) * dst->linesize[dst_plane] \ | ||
493 | + dst_offset; \ | ||
494 | const uint8_t *ap = src->data[3] + (slice_start << vsub) * src->linesize[3]; \ | ||
495 | const uint8_t *dap = main_straight ? dst->data[3] + ((yp + slice_start) << vsub) * dst->linesize[3] : NULL; \ | ||
496 | \ | ||
497 | for (int j = slice_start; j < slice_end; ++j) { \ | ||
498 | int k = kmin; \ | ||
499 | const T *s = (const T *)sp + k; \ | ||
500 | const T *a = (const T *)ap + (k << hsub); \ | ||
501 | const T *da = main_straight ? (T *)dap + ((xp + k) << hsub) : NULL; \ | ||
502 | T *d = (T *)(dp + (xp + k) * dst_step); \ | ||
503 | \ | ||
504 | if (nbits == 8 && ((vsub && j+1 < src_hp) || !vsub) && octx->blend_row[i]) { \ | ||
505 | int c = octx->blend_row[i]((uint8_t*)d, (uint8_t*)da, (uint8_t*)s, \ | ||
506 | (uint8_t*)a, kmax - k, src->linesize[3]); \ | ||
507 | \ | ||
508 | s += c; \ | ||
509 | d = PTR_ADD(T, d, dst_step * c); \ | ||
510 | if (main_straight) \ | ||
511 | da += (1 << hsub) * c; \ | ||
512 | a += (1 << hsub) * c; \ | ||
513 | k += c; \ | ||
514 | } \ | ||
515 | for (; k < kmax; k++) { \ | ||
516 | int alpha_v, alpha_h, alpha; \ | ||
517 | \ | ||
518 | /* average alpha for color components, improve quality */ \ | ||
519 | if (hsub && vsub && j+1 < src_hp && k+1 < src_wp) { \ | ||
520 | const T *next_line = CPTR_ADD(T, a, src->linesize[3]); \ | ||
521 | alpha = (a[0] + next_line[0] + \ | ||
522 | a[1] + next_line[1]) >> 2; \ | ||
523 | } else if (hsub || vsub) { \ | ||
524 | alpha_h = hsub && k+1 < src_wp ? \ | ||
525 | (a[0] + a[1]) >> 1 : a[0]; \ | ||
526 | alpha_v = vsub && j+1 < src_hp ? \ | ||
527 | (a[0] + *CPTR_ADD(T, a, src->linesize[3])) >> 1 : a[0]; \ | ||
528 | alpha = (alpha_v + alpha_h) >> 1; \ | ||
529 | } else \ | ||
530 | alpha = a[0]; \ | ||
531 | /* if the main channel has an alpha channel, alpha has to be calculated */ \ | ||
532 | /* to create an un-premultiplied (straight) alpha value */ \ | ||
533 | if (main_straight && alpha != 0 && alpha != max) { \ | ||
534 | /* average alpha for color components, improve quality */ \ | ||
535 | uint8_t alpha_d; \ | ||
536 | if (hsub && vsub && j+1 < src_hp && k+1 < src_wp) { \ | ||
537 | const T *next_line = CPTR_ADD(T, da, dst->linesize[3]); \ | ||
538 | alpha_d = (da[0] + next_line[0] + \ | ||
539 | da[1] + next_line[1]) >> 2; \ | ||
540 | } else if (hsub || vsub) { \ | ||
541 | alpha_h = hsub && k+1 < src_wp ? \ | ||
542 | (da[0] + da[1]) >> 1 : da[0]; \ | ||
543 | alpha_v = vsub && j+1 < src_hp ? \ | ||
544 | (da[0] + *CPTR_ADD(T, da, dst->linesize[3])) >> 1 : da[0]; \ | ||
545 | alpha_d = (alpha_v + alpha_h) >> 1; \ | ||
546 | } else \ | ||
547 | alpha_d = da[0]; \ | ||
548 | alpha = UNPREMULTIPLY_ALPHA(alpha, alpha_d); \ | ||
549 | } \ | ||
550 | if (overlay_straight) { \ | ||
551 | if (nbits > 8) \ | ||
552 | *d = (*d * (max - alpha) + *s * alpha) / max; \ | ||
553 | else \ | ||
554 | *d = FAST_DIV255(*d * (255 - alpha) + *s * alpha); \ | ||
555 | } else { \ | ||
556 | if (nbits > 8) { \ | ||
557 | if (i && yuv) \ | ||
558 | *d = av_clip((*d * (max - alpha) + *s * alpha) / max + *s - mid, -mid, mid) + mid; \ | ||
559 | else \ | ||
560 | *d = av_clip_uintp2((*d * (max - alpha) + *s * alpha) / max + *s - (16<<(nbits-8)),\ | ||
561 | nbits);\ | ||
562 | } else { \ | ||
563 | if (i && yuv) \ | ||
564 | *d = av_clip(FAST_DIV255((*d - mid) * (max - alpha)) + *s - mid, -mid, mid) + mid; \ | ||
565 | else \ | ||
566 | *d = av_clip_uint8(FAST_DIV255(*d * (255 - alpha)) + *s - 16); \ | ||
567 | } \ | ||
568 | } \ | ||
569 | s++; \ | ||
570 | d = PTR_ADD(T, d, dst_step); \ | ||
571 | if (main_straight) \ | ||
572 | da += 1 << hsub; \ | ||
573 | a += 1 << hsub; \ | ||
574 | } \ | ||
575 | dp += dst->linesize[dst_plane]; \ | ||
576 | sp += src->linesize[i]; \ | ||
577 | ap += (1 << vsub) * src->linesize[3]; \ | ||
578 | if (main_straight) \ | ||
579 | dap += (1 << vsub) * dst->linesize[3]; \ | ||
580 | } \ | ||
581 | } | ||
582 |
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183242883 | DEFINE_BLEND_PLANE(8, uint8_t, 8) |
583 |
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|
202564 | DEFINE_BLEND_PLANE(16, uint16_t, 10) |
584 | |||
585 | #define DEFINE_ALPHA_COMPOSITE(depth, T, nbits) \ | ||
586 | static inline void alpha_composite_##depth##_##nbits##bits(const AVFrame *src, const AVFrame *dst, \ | ||
587 | int src_w, int src_h, \ | ||
588 | int dst_w, int dst_h, \ | ||
589 | int x, int y, int main_straight, \ | ||
590 | int jobnr, int nb_jobs) \ | ||
591 | { \ | ||
592 | T alpha; /* the amount of overlay to blend on to main */ \ | ||
593 | const T max = (1 << nbits) - 1; \ | ||
594 | \ | ||
595 | const int imin = FFMAX(-y, 0), imax = FFMIN3(-y + dst_h, FFMIN(src_h, dst_h), y + src_h); \ | ||
596 | const int jmin = FFMAX(-x, 0), jmax = FFMIN(-x + dst_w, src_w); \ | ||
597 | const int slice_start = imin + ( imax * jobnr) / nb_jobs; \ | ||
598 | const int slice_end = imin + ((imax * (jobnr + 1)) / nb_jobs); \ | ||
599 | \ | ||
600 | const uint8_t *sa = src->data[3] + (slice_start) * src->linesize[3]; \ | ||
601 | uint8_t *da = dst->data[3] + (y + slice_start) * dst->linesize[3]; \ | ||
602 | \ | ||
603 | for (int i = slice_start; i < slice_end; ++i) { \ | ||
604 | const T *s = (const T *)sa + jmin; \ | ||
605 | T *d = (T *)da + x + jmin; \ | ||
606 | \ | ||
607 | for (int j = jmin; j < jmax; ++j) { \ | ||
608 | alpha = *s; \ | ||
609 | if (main_straight && 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]; \ | ||
626 | sa += src->linesize[3]; \ | ||
627 | } \ | ||
628 | } | ||
629 |
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|
909068 | DEFINE_ALPHA_COMPOSITE(8, uint8_t, 8) |
630 | ✗ | DEFINE_ALPHA_COMPOSITE(16, uint16_t, 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_straight, \ | ||
637 | int x, int y, \ | ||
638 | int overlay_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_straight, s->main_desc->comp[0].plane, s->main_desc->comp[0].offset, \ | ||
649 | s->main_desc->comp[0].step, overlay_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_straight, s->main_desc->comp[1].plane, s->main_desc->comp[1].offset, \ | ||
652 | s->main_desc->comp[1].step, overlay_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_straight, s->main_desc->comp[2].plane, s->main_desc->comp[2].offset, \ | ||
655 | s->main_desc->comp[2].step, overlay_straight, 1, jobnr, nb_jobs); \ | ||
656 | \ | ||
657 | if (s->main_has_alpha) \ | ||
658 | alpha_composite_##depth##_##nbits##bits(src, dst, src_w, src_h, dst_w, dst_h, x, y, main_straight, \ | ||
659 | jobnr, nb_jobs); \ | ||
660 | } | ||
661 |
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5985 | DEFINE_BLEND_SLICE_YUV(8, 8) |
662 |
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108 | DEFINE_BLEND_SLICE_YUV(16, 10) |
663 | |||
664 | 36 | 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_straight, | ||
668 | int x, int y, | ||
669 | int overlay_straight, | ||
670 | int jobnr, | ||
671 | int nb_jobs) | ||
672 | { | ||
673 | 36 | OverlayContext *s = ctx->priv; | |
674 | 36 | const int src_w = src->width; | |
675 | 36 | const int src_h = src->height; | |
676 | 36 | const int dst_w = dst->width; | |
677 | 36 | const int dst_h = dst->height; | |
678 | |||
679 | 36 | blend_plane_8_8bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 0, 0, 0, x, y, main_straight, | |
680 | 36 | s->main_desc->comp[1].plane, s->main_desc->comp[1].offset, s->main_desc->comp[1].step, overlay_straight, 0, | |
681 | jobnr, nb_jobs); | ||
682 | 36 | blend_plane_8_8bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 1, hsub, vsub, x, y, main_straight, | |
683 | 36 | s->main_desc->comp[2].plane, s->main_desc->comp[2].offset, s->main_desc->comp[2].step, overlay_straight, 0, | |
684 | jobnr, nb_jobs); | ||
685 | 36 | blend_plane_8_8bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 2, hsub, vsub, x, y, main_straight, | |
686 | 36 | s->main_desc->comp[0].plane, s->main_desc->comp[0].offset, s->main_desc->comp[0].step, overlay_straight, 0, | |
687 | jobnr, nb_jobs); | ||
688 | |||
689 |
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36 | if (s->main_has_alpha) |
690 | 18 | alpha_composite_8_8bits(src, dst, src_w, src_h, dst_w, dst_h, x, y, main_straight, jobnr, nb_jobs); | |
691 | 36 | } | |
692 | |||
693 | #define DEFINE_BLEND_SLICE_PLANAR_FMT_(format_, blend_slice_fn_suffix_, hsub_, vsub_, main_straight_, overlay_straight_) \ | ||
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_straight_, \ | ||
700 | s->x, s->y, overlay_straight_, \ | ||
701 | jobnr, nb_jobs); \ | ||
702 | return 0; \ | ||
703 | } | ||
704 | |||
705 | #define DEFINE_BLEND_SLICE_PLANAR_FMT(format_, blend_slice_fn_suffix_, hsub_, vsub_) \ | ||
706 | DEFINE_BLEND_SLICE_PLANAR_FMT_(format_ ## _ss, blend_slice_fn_suffix_, hsub_, vsub_, 1, 1) \ | ||
707 | DEFINE_BLEND_SLICE_PLANAR_FMT_(format_ ## _sp, blend_slice_fn_suffix_, hsub_, vsub_, 1, 0) \ | ||
708 | DEFINE_BLEND_SLICE_PLANAR_FMT_(format_ ## _ps, blend_slice_fn_suffix_, hsub_, vsub_, 0, 1) \ | ||
709 | DEFINE_BLEND_SLICE_PLANAR_FMT_(format_ ## _pp, blend_slice_fn_suffix_, hsub_, vsub_, 0, 0) | ||
710 | |||
711 | // FMT FN H V | ||
712 | 10026 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv420, yuv_8_8bits, 1, 1) | |
713 | 72 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv420p10, yuv_16_10bits, 1, 1) | |
714 | 72 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv422p10, yuv_16_10bits, 1, 0) | |
715 | 972 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv422, yuv_8_8bits, 1, 0) | |
716 | 972 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv444, yuv_8_8bits, 0, 0) | |
717 | 72 | DEFINE_BLEND_SLICE_PLANAR_FMT(yuv444p10, yuv_16_10bits, 0, 0) | |
718 | 72 | DEFINE_BLEND_SLICE_PLANAR_FMT(gbrp, planar_rgb, 0, 0) | |
719 | |||
720 | #define DEFINE_BLEND_SLICE_PACKED_FMT(format_, blend_slice_fn_suffix_, main_has_alpha_, main_straight_, overlay_straight_) \ | ||
721 | static int blend_slice_##format_(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ | ||
722 | { \ | ||
723 | OverlayContext *s = ctx->priv; \ | ||
724 | ThreadData *td = arg; \ | ||
725 | blend_slice_packed_##blend_slice_fn_suffix_(ctx, td->dst, td->src, \ | ||
726 | main_has_alpha_, \ | ||
727 | s->x, s->y, \ | ||
728 | overlay_straight_, \ | ||
729 | main_straight_, \ | ||
730 | jobnr, nb_jobs); \ | ||
731 | return 0; \ | ||
732 | } | ||
733 | |||
734 | // FMT FN A MS OS | ||
735 | 468 | DEFINE_BLEND_SLICE_PACKED_FMT(rgb, rgb, 0, 0, 1) | |
736 | ✗ | DEFINE_BLEND_SLICE_PACKED_FMT(rgb_pm, rgb, 0, 0, 0) | |
737 | 18 | DEFINE_BLEND_SLICE_PACKED_FMT(rgba_ss, rgb, 1, 1, 1) | |
738 | ✗ | DEFINE_BLEND_SLICE_PACKED_FMT(rgba_sp, rgb, 1, 1, 0) | |
739 | ✗ | DEFINE_BLEND_SLICE_PACKED_FMT(rgba_ps, rgb, 1, 0, 1) | |
740 | ✗ | DEFINE_BLEND_SLICE_PACKED_FMT(rgba_pp, rgb, 1, 0, 0) | |
741 | |||
742 | 23 | static int config_input_main(AVFilterLink *inlink) | |
743 | { | ||
744 | 23 | OverlayContext *s = inlink->dst->priv; | |
745 | 23 | const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format); | |
746 | |||
747 | 23 | av_image_fill_max_pixsteps(s->main_pix_step, NULL, pix_desc); | |
748 | |||
749 | 23 | s->hsub = pix_desc->log2_chroma_w; | |
750 | 23 | s->vsub = pix_desc->log2_chroma_h; | |
751 | |||
752 | 23 | s->main_desc = pix_desc; | |
753 | |||
754 | 23 | s->main_is_packed_rgb = | |
755 | 23 | ff_fill_rgba_map(s->main_rgba_map, inlink->format) >= 0; | |
756 | 23 | s->main_has_alpha = ff_fmt_is_in(inlink->format, alpha_pix_fmts); | |
757 | 23 | return 0; | |
758 | } | ||
759 | |||
760 | 735 | static int init_slice_fn(AVFilterContext *ctx) | |
761 | { | ||
762 | 735 | OverlayContext *s = ctx->priv; | |
763 | 735 | const AVFilterLink *main = ctx->inputs[MAIN]; | |
764 | 735 | const AVFilterLink *overlay = ctx->inputs[OVERLAY]; | |
765 |
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735 | const int main_straight = s->main_has_alpha && main->alpha_mode != AVALPHA_MODE_PREMULTIPLIED; |
766 | 735 | const int overlay_straight = overlay->alpha_mode != AVALPHA_MODE_PREMULTIPLIED; | |
767 | |||
768 | #define ASSIGN_BLEND_SLICE(format_) \ | ||
769 | do { \ | ||
770 | s->blend_slice = main_straight ? (overlay_straight ? format_##_ss : format_##_sp) \ | ||
771 | : (overlay_straight ? format_##_ps : format_##_pp); \ | ||
772 | } while (0) | ||
773 | |||
774 |
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735 | switch (s->format) { |
775 | 557 | case OVERLAY_FORMAT_YUV420: | |
776 |
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557 | ASSIGN_BLEND_SLICE(blend_slice_yuv420); |
777 | 557 | break; | |
778 | 4 | case OVERLAY_FORMAT_YUV420P10: | |
779 |
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4 | ASSIGN_BLEND_SLICE(blend_slice_yuv420p10); |
780 | 4 | break; | |
781 | 54 | case OVERLAY_FORMAT_YUV422: | |
782 |
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54 | ASSIGN_BLEND_SLICE(blend_slice_yuv422); |
783 | 54 | break; | |
784 | 4 | case OVERLAY_FORMAT_YUV422P10: | |
785 |
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4 | ASSIGN_BLEND_SLICE(blend_slice_yuv422p10); |
786 | 4 | break; | |
787 | 54 | case OVERLAY_FORMAT_YUV444: | |
788 |
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54 | ASSIGN_BLEND_SLICE(blend_slice_yuv444); |
789 | 54 | break; | |
790 | 4 | case OVERLAY_FORMAT_YUV444P10: | |
791 |
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4 | ASSIGN_BLEND_SLICE(blend_slice_yuv444p10); |
792 | 4 | break; | |
793 | 54 | case OVERLAY_FORMAT_RGB: | |
794 |
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54 | if (s->main_has_alpha) |
795 |
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2 | ASSIGN_BLEND_SLICE(blend_slice_rgba); |
796 | else | ||
797 |
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52 | s->blend_slice = overlay_straight ? blend_slice_rgb : blend_slice_rgb_pm; |
798 | 54 | break; | |
799 | 4 | case OVERLAY_FORMAT_GBRP: | |
800 |
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4 | ASSIGN_BLEND_SLICE(blend_slice_gbrp); |
801 | 4 | break; | |
802 | ✗ | case OVERLAY_FORMAT_AUTO: | |
803 | ✗ | switch (main->format) { | |
804 | ✗ | case AV_PIX_FMT_YUVA420P: | |
805 | ✗ | ASSIGN_BLEND_SLICE(blend_slice_yuv420); | |
806 | ✗ | break; | |
807 | ✗ | case AV_PIX_FMT_YUVA420P10: | |
808 | ✗ | ASSIGN_BLEND_SLICE(blend_slice_yuv420p10); | |
809 | ✗ | break; | |
810 | ✗ | case AV_PIX_FMT_YUVA422P: | |
811 | ✗ | ASSIGN_BLEND_SLICE(blend_slice_yuv422); | |
812 | ✗ | break; | |
813 | ✗ | case AV_PIX_FMT_YUVA422P10: | |
814 | ✗ | ASSIGN_BLEND_SLICE(blend_slice_yuv422p10); | |
815 | ✗ | break; | |
816 | ✗ | case AV_PIX_FMT_YUVA444P: | |
817 | ✗ | ASSIGN_BLEND_SLICE(blend_slice_yuv444); | |
818 | ✗ | break; | |
819 | ✗ | case AV_PIX_FMT_YUVA444P10: | |
820 | ✗ | ASSIGN_BLEND_SLICE(blend_slice_yuv444p10); | |
821 | ✗ | break; | |
822 | ✗ | case AV_PIX_FMT_ARGB: | |
823 | case AV_PIX_FMT_RGBA: | ||
824 | case AV_PIX_FMT_BGRA: | ||
825 | case AV_PIX_FMT_ABGR: | ||
826 | ✗ | ASSIGN_BLEND_SLICE(blend_slice_rgba); | |
827 | ✗ | break; | |
828 | ✗ | case AV_PIX_FMT_GBRAP: | |
829 | ✗ | ASSIGN_BLEND_SLICE(blend_slice_gbrp); | |
830 | ✗ | break; | |
831 | ✗ | default: | |
832 | ✗ | av_unreachable("Invalid pixel format for overlay"); | |
833 | break; | ||
834 | } | ||
835 | ✗ | break; | |
836 | } | ||
837 | |||
838 | #if ARCH_X86 | ||
839 | 735 | ff_overlay_init_x86(ctx); | |
840 | #endif | ||
841 | |||
842 | 735 | return 0; | |
843 | } | ||
844 | |||
845 | 738 | static int do_blend(FFFrameSync *fs) | |
846 | { | ||
847 | 738 | AVFilterContext *ctx = fs->parent; | |
848 | AVFrame *mainpic, *second; | ||
849 | 738 | OverlayContext *s = ctx->priv; | |
850 | 738 | AVFilterLink *inlink = ctx->inputs[0]; | |
851 | 738 | FilterLink *inl = ff_filter_link(inlink); | |
852 | int ret; | ||
853 | |||
854 | 738 | ret = ff_framesync_dualinput_get_writable(fs, &mainpic, &second); | |
855 |
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738 | if (ret < 0) |
856 | ✗ | return ret; | |
857 |
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738 | if (!second) |
858 | 3 | return ff_filter_frame(ctx->outputs[0], mainpic); | |
859 | |||
860 |
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735 | if (s->eval_mode == EVAL_MODE_FRAME) { |
861 | |||
862 | 735 | s->var_values[VAR_N] = inl->frame_count_out; | |
863 | 1470 | s->var_values[VAR_T] = mainpic->pts == AV_NOPTS_VALUE ? | |
864 |
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735 | NAN : mainpic->pts * av_q2d(inlink->time_base); |
865 | |||
866 | 735 | s->var_values[VAR_OVERLAY_W] = s->var_values[VAR_OW] = second->width; | |
867 | 735 | s->var_values[VAR_OVERLAY_H] = s->var_values[VAR_OH] = second->height; | |
868 | 735 | s->var_values[VAR_MAIN_W ] = s->var_values[VAR_MW] = mainpic->width; | |
869 | 735 | s->var_values[VAR_MAIN_H ] = s->var_values[VAR_MH] = mainpic->height; | |
870 | |||
871 | 735 | eval_expr(ctx); | |
872 | 735 | av_log(ctx, AV_LOG_DEBUG, "n:%f t:%f x:%f xi:%d y:%f yi:%d\n", | |
873 | s->var_values[VAR_N], s->var_values[VAR_T], | ||
874 | s->var_values[VAR_X], s->x, | ||
875 | s->var_values[VAR_Y], s->y); | ||
876 | } | ||
877 | |||
878 |
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735 | if (s->x < mainpic->width && s->x + second->width >= 0 && |
879 |
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735 | s->y < mainpic->height && s->y + second->height >= 0) { |
880 | ThreadData td; | ||
881 | |||
882 | 735 | init_slice_fn(ctx); | |
883 | |||
884 | 735 | td.dst = mainpic; | |
885 | 735 | td.src = second; | |
886 |
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735 | 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)), |
887 | ff_filter_get_nb_threads(ctx))); | ||
888 | } | ||
889 | 735 | return ff_filter_frame(ctx->outputs[0], mainpic); | |
890 | } | ||
891 | |||
892 | 46 | static av_cold int init(AVFilterContext *ctx) | |
893 | { | ||
894 | 46 | OverlayContext *s = ctx->priv; | |
895 | |||
896 | 46 | s->fs.on_event = do_blend; | |
897 | 46 | return 0; | |
898 | } | ||
899 | |||
900 | 2762 | static int activate(AVFilterContext *ctx) | |
901 | { | ||
902 | 2762 | OverlayContext *s = ctx->priv; | |
903 | 2762 | return ff_framesync_activate(&s->fs); | |
904 | } | ||
905 | |||
906 | #define OFFSET(x) offsetof(OverlayContext, x) | ||
907 | #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM | ||
908 | #define TFLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM | ||
909 | |||
910 | static const AVOption overlay_options[] = { | ||
911 | { "x", "set the x expression", OFFSET(x_expr), AV_OPT_TYPE_STRING, {.str = "0"}, 0, 0, TFLAGS }, | ||
912 | { "y", "set the y expression", OFFSET(y_expr), AV_OPT_TYPE_STRING, {.str = "0"}, 0, 0, TFLAGS }, | ||
913 | { "eof_action", "Action to take when encountering EOF from secondary input ", | ||
914 | OFFSET(fs.opt_eof_action), AV_OPT_TYPE_INT, { .i64 = EOF_ACTION_REPEAT }, | ||
915 | EOF_ACTION_REPEAT, EOF_ACTION_PASS, .flags = FLAGS, .unit = "eof_action" }, | ||
916 | { "repeat", "Repeat the previous frame.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_REPEAT }, .flags = FLAGS, .unit = "eof_action" }, | ||
917 | { "endall", "End both streams.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_ENDALL }, .flags = FLAGS, .unit = "eof_action" }, | ||
918 | { "pass", "Pass through the main input.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_PASS }, .flags = FLAGS, .unit = "eof_action" }, | ||
919 | { "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" }, | ||
920 | { "init", "eval expressions once during initialization", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_INIT}, .flags = FLAGS, .unit = "eval" }, | ||
921 | { "frame", "eval expressions per-frame", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_FRAME}, .flags = FLAGS, .unit = "eval" }, | ||
922 | { "shortest", "force termination when the shortest input terminates", OFFSET(fs.opt_shortest), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS }, | ||
923 | { "format", "set output format", OFFSET(format), AV_OPT_TYPE_INT, {.i64=OVERLAY_FORMAT_YUV420}, 0, OVERLAY_FORMAT_NB-1, FLAGS, .unit = "format" }, | ||
924 | { "yuv420", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV420}, .flags = FLAGS, .unit = "format" }, | ||
925 | { "yuv420p10", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV420P10}, .flags = FLAGS, .unit = "format" }, | ||
926 | { "yuv422", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV422}, .flags = FLAGS, .unit = "format" }, | ||
927 | { "yuv422p10", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV422P10}, .flags = FLAGS, .unit = "format" }, | ||
928 | { "yuv444", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV444}, .flags = FLAGS, .unit = "format" }, | ||
929 | { "yuv444p10", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV444P10}, .flags = FLAGS, .unit = "format" }, | ||
930 | { "rgb", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_RGB}, .flags = FLAGS, .unit = "format" }, | ||
931 | { "gbrp", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_GBRP}, .flags = FLAGS, .unit = "format" }, | ||
932 | { "auto", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_AUTO}, .flags = FLAGS, .unit = "format" }, | ||
933 | { "repeatlast", "repeat overlay of the last overlay frame", OFFSET(fs.opt_repeatlast), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS }, | ||
934 | { "alpha", "alpha format", OFFSET(alpha_mode), AV_OPT_TYPE_INT, {.i64=AVALPHA_MODE_UNSPECIFIED}, 0, AVALPHA_MODE_NB-1, FLAGS, .unit = "alpha_mode" }, | ||
935 | { "auto", "", 0, AV_OPT_TYPE_CONST, {.i64=AVALPHA_MODE_UNSPECIFIED}, .flags = FLAGS, .unit = "alpha_mode" }, | ||
936 | { "unknown", "", 0, AV_OPT_TYPE_CONST, {.i64=AVALPHA_MODE_UNSPECIFIED}, .flags = FLAGS, .unit = "alpha_mode" }, | ||
937 | { "straight", "", 0, AV_OPT_TYPE_CONST, {.i64=AVALPHA_MODE_STRAIGHT}, .flags = FLAGS, .unit = "alpha_mode" }, | ||
938 | { "premultiplied", "", 0, AV_OPT_TYPE_CONST, {.i64=AVALPHA_MODE_PREMULTIPLIED}, .flags = FLAGS, .unit = "alpha_mode" }, | ||
939 | { NULL } | ||
940 | }; | ||
941 | |||
942 |
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420 | FRAMESYNC_DEFINE_CLASS(overlay, OverlayContext, fs); |
943 | |||
944 | static const AVFilterPad avfilter_vf_overlay_inputs[] = { | ||
945 | { | ||
946 | .name = "main", | ||
947 | .type = AVMEDIA_TYPE_VIDEO, | ||
948 | .config_props = config_input_main, | ||
949 | }, | ||
950 | { | ||
951 | .name = "overlay", | ||
952 | .type = AVMEDIA_TYPE_VIDEO, | ||
953 | .config_props = config_input_overlay, | ||
954 | }, | ||
955 | }; | ||
956 | |||
957 | static const AVFilterPad avfilter_vf_overlay_outputs[] = { | ||
958 | { | ||
959 | .name = "default", | ||
960 | .type = AVMEDIA_TYPE_VIDEO, | ||
961 | .config_props = config_output, | ||
962 | }, | ||
963 | }; | ||
964 | |||
965 | const FFFilter ff_vf_overlay = { | ||
966 | .p.name = "overlay", | ||
967 | .p.description = NULL_IF_CONFIG_SMALL("Overlay a video source on top of the input."), | ||
968 | .p.priv_class = &overlay_class, | ||
969 | .p.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | | ||
970 | AVFILTER_FLAG_SLICE_THREADS, | ||
971 | .preinit = overlay_framesync_preinit, | ||
972 | .init = init, | ||
973 | .uninit = uninit, | ||
974 | .priv_size = sizeof(OverlayContext), | ||
975 | .activate = activate, | ||
976 | .process_command = process_command, | ||
977 | FILTER_INPUTS(avfilter_vf_overlay_inputs), | ||
978 | FILTER_OUTPUTS(avfilter_vf_overlay_outputs), | ||
979 | FILTER_QUERY_FUNC2(query_formats), | ||
980 | }; | ||
981 |