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1 | /* | ||
2 | * Copyright (c) 2010 Brandon Mintern | ||
3 | * Copyright (c) 2007 Bobby Bingham | ||
4 | * | ||
5 | * This file is part of FFmpeg. | ||
6 | * | ||
7 | * FFmpeg is free software; you can redistribute it and/or | ||
8 | * modify it under the terms of the GNU Lesser General Public | ||
9 | * License as published by the Free Software Foundation; either | ||
10 | * version 2.1 of the License, or (at your option) any later version. | ||
11 | * | ||
12 | * FFmpeg is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
15 | * Lesser General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU Lesser General Public | ||
18 | * License along with FFmpeg; if not, write to the Free Software | ||
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
20 | */ | ||
21 | |||
22 | /** | ||
23 | * @file | ||
24 | * video fade filter | ||
25 | * based heavily on vf_negate.c by Bobby Bingham | ||
26 | */ | ||
27 | |||
28 | #include "libavutil/avassert.h" | ||
29 | #include "libavutil/avstring.h" | ||
30 | #include "libavutil/common.h" | ||
31 | #include "libavutil/eval.h" | ||
32 | #include "libavutil/opt.h" | ||
33 | #include "libavutil/pixdesc.h" | ||
34 | #include "avfilter.h" | ||
35 | #include "drawutils.h" | ||
36 | #include "filters.h" | ||
37 | #include "formats.h" | ||
38 | #include "video.h" | ||
39 | |||
40 | #define R 0 | ||
41 | #define G 1 | ||
42 | #define B 2 | ||
43 | #define A 3 | ||
44 | |||
45 | #define Y 0 | ||
46 | #define U 1 | ||
47 | #define V 2 | ||
48 | |||
49 | #define FADE_IN 0 | ||
50 | #define FADE_OUT 1 | ||
51 | |||
52 | typedef struct FadeContext { | ||
53 | const AVClass *class; | ||
54 | int type; | ||
55 | int factor, fade_per_frame; | ||
56 | int start_frame, nb_frames; | ||
57 | int hsub, vsub, bpp, depth; | ||
58 | unsigned int black_level, black_level_scaled; | ||
59 | uint8_t is_rgb; | ||
60 | uint8_t is_packed_rgb; | ||
61 | uint8_t rgba_map[4]; | ||
62 | int alpha; | ||
63 | int is_planar; | ||
64 | uint64_t start_time, duration; | ||
65 | uint64_t start_time_pts, duration_pts; | ||
66 | enum {VF_FADE_WAITING=0, VF_FADE_FADING, VF_FADE_DONE} fade_state; | ||
67 | uint8_t color_rgba[4]; ///< fade color | ||
68 | int black_fade; ///< if color_rgba is black | ||
69 | int (*filter_slice_luma)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); | ||
70 | int (*filter_slice_chroma)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); | ||
71 | int (*filter_slice_alpha)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); | ||
72 | } FadeContext; | ||
73 | |||
74 | 4 | static av_cold int init(AVFilterContext *ctx) | |
75 | { | ||
76 | 4 | FadeContext *s = ctx->priv; | |
77 | |||
78 | 4 | s->fade_per_frame = (1 << 16) / s->nb_frames; | |
79 | 4 | s->fade_state = VF_FADE_WAITING; | |
80 | |||
81 |
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4 | if (s->duration != 0) { |
82 | // If duration (seconds) is non-zero, assume that we are not fading based on frames | ||
83 | ✗ | s->nb_frames = 0; // Mostly to clean up logging | |
84 | } | ||
85 | |||
86 | // Choose what to log. If both time-based and frame-based options, both lines will be in the log | ||
87 |
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4 | if (s->start_frame || s->nb_frames) { |
88 | 4 | av_log(ctx, AV_LOG_VERBOSE, | |
89 | "type:%s start_frame:%d nb_frames:%d alpha:%d\n", | ||
90 |
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4 | s->type == FADE_IN ? "in" : "out", s->start_frame, |
91 | s->nb_frames,s->alpha); | ||
92 | } | ||
93 |
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4 | if (s->start_time || s->duration) { |
94 | ✗ | av_log(ctx, AV_LOG_VERBOSE, | |
95 | "type:%s start_time:%f duration:%f alpha:%d\n", | ||
96 | ✗ | s->type == FADE_IN ? "in" : "out", (s->start_time / (double)AV_TIME_BASE), | |
97 | ✗ | (s->duration / (double)AV_TIME_BASE),s->alpha); | |
98 | } | ||
99 | |||
100 | 4 | s->black_fade = !memcmp(s->color_rgba, "\x00\x00\x00\xff", 4); | |
101 | 4 | return 0; | |
102 | } | ||
103 | |||
104 | 2 | static int query_formats(const AVFilterContext *ctx, | |
105 | AVFilterFormatsConfig **cfg_in, | ||
106 | AVFilterFormatsConfig **cfg_out) | ||
107 | { | ||
108 | 2 | const FadeContext *s = ctx->priv; | |
109 | static const enum AVPixelFormat pix_fmts[] = { | ||
110 | AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, | ||
111 | AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, | ||
112 | AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, | ||
113 | AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUVJ440P, | ||
114 | AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, | ||
115 | AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, | ||
116 | AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, | ||
117 | AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, | ||
118 | AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, | ||
119 | AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, | ||
120 | AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, | ||
121 | AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, | ||
122 | AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, | ||
123 | AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, | ||
124 | AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, | ||
125 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, | ||
126 | AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, | ||
127 | AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, | ||
128 | AV_PIX_FMT_NONE | ||
129 | }; | ||
130 | static const enum AVPixelFormat pix_fmts_rgb[] = { | ||
131 | AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, | ||
132 | AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, | ||
133 | AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, | ||
134 | AV_PIX_FMT_GBRP, | ||
135 | AV_PIX_FMT_NONE | ||
136 | }; | ||
137 | static const enum AVPixelFormat pix_fmts_alpha[] = { | ||
138 | AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, | ||
139 | AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, | ||
140 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, | ||
141 | AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, | ||
142 | AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, | ||
143 | AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, | ||
144 | AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, | ||
145 | AV_PIX_FMT_GBRAP, | ||
146 | AV_PIX_FMT_NONE | ||
147 | }; | ||
148 | static const enum AVPixelFormat pix_fmts_rgba[] = { | ||
149 | AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, | ||
150 | AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, | ||
151 | AV_PIX_FMT_GBRAP, | ||
152 | AV_PIX_FMT_NONE | ||
153 | }; | ||
154 | const static int straight_alpha[] = { | ||
155 | AVALPHA_MODE_UNSPECIFIED, | ||
156 | AVALPHA_MODE_STRAIGHT, | ||
157 | -1, | ||
158 | }; | ||
159 | const enum AVPixelFormat *pixel_fmts; | ||
160 | 2 | int need_straight = 0; | |
161 | int ret; | ||
162 | |||
163 |
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2 | if (s->alpha) { |
164 | ✗ | if (s->black_fade) | |
165 | ✗ | pixel_fmts = pix_fmts_alpha; | |
166 | else | ||
167 | ✗ | pixel_fmts = pix_fmts_rgba; | |
168 | ✗ | need_straight = 1; | |
169 | } else { | ||
170 |
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2 | if (s->black_fade) |
171 | 2 | pixel_fmts = pix_fmts; | |
172 | else { | ||
173 | ✗ | pixel_fmts = pix_fmts_rgb; | |
174 | ✗ | need_straight = 1; | |
175 | } | ||
176 | } | ||
177 | |||
178 |
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2 | if (need_straight) { |
179 | ✗ | ret = ff_set_common_alpha_modes_from_list2(ctx, cfg_in, cfg_out, straight_alpha); | |
180 | ✗ | if (ret < 0) | |
181 | ✗ | return ret; | |
182 | } | ||
183 | |||
184 | 2 | return ff_set_common_formats_from_list2(ctx, cfg_in, cfg_out, pixel_fmts); | |
185 | } | ||
186 | |||
187 | const static enum AVPixelFormat studio_level_pix_fmts[] = { | ||
188 | AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, | ||
189 | AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, | ||
190 | AV_PIX_FMT_YUV440P, | ||
191 | AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, | ||
192 | AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, | ||
193 | AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, | ||
194 | AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, | ||
195 | AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, | ||
196 | AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, | ||
197 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, | ||
198 | AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, | ||
199 | AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, | ||
200 | AV_PIX_FMT_NONE | ||
201 | }; | ||
202 | |||
203 | ✗ | static av_always_inline void filter_rgb(FadeContext *s, const AVFrame *frame, | |
204 | int slice_start, int slice_end, | ||
205 | int do_alpha, int step) | ||
206 | { | ||
207 | int i, j; | ||
208 | ✗ | const uint8_t r_idx = s->rgba_map[R]; | |
209 | ✗ | const uint8_t g_idx = s->rgba_map[G]; | |
210 | ✗ | const uint8_t b_idx = s->rgba_map[B]; | |
211 | ✗ | const uint8_t a_idx = s->rgba_map[A]; | |
212 | ✗ | const uint8_t *c = s->color_rgba; | |
213 | |||
214 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
215 | ✗ | uint8_t *p = frame->data[0] + i * frame->linesize[0]; | |
216 | ✗ | for (j = 0; j < frame->width; j++) { | |
217 | #define INTERP(c_name, c_idx) av_clip_uint8(((c[c_idx]<<16) + ((int)p[c_name] - (int)c[c_idx]) * s->factor + (1<<15)) >> 16) | ||
218 | ✗ | p[r_idx] = INTERP(r_idx, 0); | |
219 | ✗ | p[g_idx] = INTERP(g_idx, 1); | |
220 | ✗ | p[b_idx] = INTERP(b_idx, 2); | |
221 | ✗ | if (do_alpha) | |
222 | ✗ | p[a_idx] = INTERP(a_idx, 3); | |
223 | ✗ | p += step; | |
224 | } | ||
225 | } | ||
226 | ✗ | } | |
227 | |||
228 | ✗ | static av_always_inline void filter_rgb_planar(FadeContext *s, const AVFrame *frame, | |
229 | int slice_start, int slice_end, | ||
230 | int do_alpha) | ||
231 | { | ||
232 | int i, j; | ||
233 | ✗ | const uint8_t *c = s->color_rgba; | |
234 | |||
235 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
236 | ✗ | uint8_t *pg = frame->data[0] + i * frame->linesize[0]; | |
237 | ✗ | uint8_t *pb = frame->data[1] + i * frame->linesize[1]; | |
238 | ✗ | uint8_t *pr = frame->data[2] + i * frame->linesize[2]; | |
239 | ✗ | uint8_t *pa = frame->data[3] + i * frame->linesize[3]; | |
240 | ✗ | for (j = 0; j < frame->width; j++) { | |
241 | #define INTERPP(c_name, c_idx) av_clip_uint8(((c[c_idx]<<16) + ((int)c_name - (int)c[c_idx]) * s->factor + (1<<15)) >> 16) | ||
242 | ✗ | pr[j] = INTERPP(pr[j], 0); | |
243 | ✗ | pg[j] = INTERPP(pg[j], 1); | |
244 | ✗ | pb[j] = INTERPP(pb[j], 2); | |
245 | ✗ | if (do_alpha) | |
246 | ✗ | pa[j] = INTERPP(pa[j], 3); | |
247 | } | ||
248 | } | ||
249 | ✗ | } | |
250 | |||
251 | ✗ | static int filter_slice_rgb(AVFilterContext *ctx, void *arg, int jobnr, | |
252 | int nb_jobs) | ||
253 | { | ||
254 | ✗ | FadeContext *s = ctx->priv; | |
255 | ✗ | AVFrame *frame = arg; | |
256 | ✗ | int slice_start = (frame->height * jobnr ) / nb_jobs; | |
257 | ✗ | int slice_end = (frame->height * (jobnr+1)) / nb_jobs; | |
258 | |||
259 | ✗ | if (s->is_planar && s->alpha) | |
260 | ✗ | filter_rgb_planar(s, frame, slice_start, slice_end, 1); | |
261 | ✗ | else if (s->is_planar) | |
262 | ✗ | filter_rgb_planar(s, frame, slice_start, slice_end, 0); | |
263 | ✗ | else if (s->alpha) filter_rgb(s, frame, slice_start, slice_end, 1, 4); | |
264 | ✗ | else if (s->bpp == 3) filter_rgb(s, frame, slice_start, slice_end, 0, 3); | |
265 | ✗ | else if (s->bpp == 4) filter_rgb(s, frame, slice_start, slice_end, 0, 4); | |
266 | ✗ | else av_assert0(0); | |
267 | |||
268 | ✗ | return 0; | |
269 | } | ||
270 | |||
271 | 351 | static int filter_slice_luma(AVFilterContext *ctx, void *arg, int jobnr, | |
272 | int nb_jobs) | ||
273 | { | ||
274 | 351 | FadeContext *s = ctx->priv; | |
275 | 351 | AVFrame *frame = arg; | |
276 | 351 | int slice_start = (frame->height * jobnr ) / nb_jobs; | |
277 | 351 | int slice_end = (frame->height * (jobnr+1)) / nb_jobs; | |
278 | int i, j; | ||
279 | |||
280 |
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702 | for (int k = 0; k < 1 + 2 * (s->is_planar && s->is_rgb); k++) { |
281 |
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11583 | for (i = slice_start; i < slice_end; i++) { |
282 | 11232 | uint8_t *p = frame->data[k] + i * frame->linesize[k]; | |
283 |
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3964896 | for (j = 0; j < frame->width * s->bpp; j++) { |
284 | /* s->factor is using 16 lower-order bits for decimal | ||
285 | * places. 32768 = 1 << 15, it is an integer representation | ||
286 | * of 0.5 and is for rounding. */ | ||
287 | 3953664 | *p = ((*p - s->black_level) * s->factor + s->black_level_scaled) >> 16; | |
288 | 3953664 | p++; | |
289 | } | ||
290 | } | ||
291 | } | ||
292 | |||
293 | 351 | return 0; | |
294 | } | ||
295 | |||
296 | ✗ | static int filter_slice_luma16(AVFilterContext *ctx, void *arg, int jobnr, | |
297 | int nb_jobs) | ||
298 | { | ||
299 | ✗ | FadeContext *s = ctx->priv; | |
300 | ✗ | AVFrame *frame = arg; | |
301 | ✗ | int slice_start = (frame->height * jobnr ) / nb_jobs; | |
302 | ✗ | int slice_end = (frame->height * (jobnr+1)) / nb_jobs; | |
303 | int i, j; | ||
304 | |||
305 | ✗ | for (int k = 0; k < 1 + 2 * (s->is_planar && s->is_rgb); k++) { | |
306 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
307 | ✗ | uint16_t *p = (uint16_t *)(frame->data[k] + i * frame->linesize[k]); | |
308 | ✗ | for (j = 0; j < frame->width * s->bpp; j++) { | |
309 | /* s->factor is using 16 lower-order bits for decimal | ||
310 | * places. 32768 = 1 << 15, it is an integer representation | ||
311 | * of 0.5 and is for rounding. */ | ||
312 | ✗ | *p = ((*p - s->black_level) * s->factor + s->black_level_scaled) >> 16; | |
313 | ✗ | p++; | |
314 | } | ||
315 | } | ||
316 | } | ||
317 | |||
318 | ✗ | return 0; | |
319 | } | ||
320 | |||
321 | 351 | static int filter_slice_chroma(AVFilterContext *ctx, void *arg, int jobnr, | |
322 | int nb_jobs) | ||
323 | { | ||
324 | 351 | FadeContext *s = ctx->priv; | |
325 | 351 | AVFrame *frame = arg; | |
326 | int i, j, plane; | ||
327 | 351 | const int width = AV_CEIL_RSHIFT(frame->width, s->hsub); | |
328 | 351 | const int height= AV_CEIL_RSHIFT(frame->height, s->vsub); | |
329 | 351 | int slice_start = (height * jobnr ) / nb_jobs; | |
330 | 351 | int slice_end = FFMIN(((height * (jobnr+1)) / nb_jobs), frame->height); | |
331 | |||
332 |
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1053 | for (plane = 1; plane < 3; plane++) { |
333 |
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11934 | for (i = slice_start; i < slice_end; i++) { |
334 | 11232 | uint8_t *p = frame->data[plane] + i * frame->linesize[plane]; | |
335 |
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1988064 | for (j = 0; j < width; j++) { |
336 | /* 8421367 = ((128 << 1) + 1) << 15. It is an integer | ||
337 | * representation of 128.5. The .5 is for rounding | ||
338 | * purposes. */ | ||
339 | 1976832 | *p = ((*p - 128) * s->factor + 8421367) >> 16; | |
340 | 1976832 | p++; | |
341 | } | ||
342 | } | ||
343 | } | ||
344 | |||
345 | 351 | return 0; | |
346 | } | ||
347 | |||
348 | ✗ | static int filter_slice_chroma16(AVFilterContext *ctx, void *arg, int jobnr, | |
349 | int nb_jobs) | ||
350 | { | ||
351 | ✗ | FadeContext *s = ctx->priv; | |
352 | ✗ | AVFrame *frame = arg; | |
353 | int i, j, plane; | ||
354 | ✗ | const int width = AV_CEIL_RSHIFT(frame->width, s->hsub); | |
355 | ✗ | const int height= AV_CEIL_RSHIFT(frame->height, s->vsub); | |
356 | ✗ | const int mid = 1 << (s->depth - 1); | |
357 | ✗ | const int add = ((mid << 1) + 1) << 15; | |
358 | ✗ | int slice_start = (height * jobnr ) / nb_jobs; | |
359 | ✗ | int slice_end = FFMIN(((height * (jobnr+1)) / nb_jobs), frame->height); | |
360 | |||
361 | ✗ | for (plane = 1; plane < 3; plane++) { | |
362 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
363 | ✗ | uint16_t *p = (uint16_t *)(frame->data[plane] + i * frame->linesize[plane]); | |
364 | ✗ | for (j = 0; j < width; j++) { | |
365 | ✗ | *p = ((*p - mid) * s->factor + add) >> 16; | |
366 | ✗ | p++; | |
367 | } | ||
368 | } | ||
369 | } | ||
370 | |||
371 | ✗ | return 0; | |
372 | } | ||
373 | |||
374 | ✗ | static int filter_slice_alpha(AVFilterContext *ctx, void *arg, int jobnr, | |
375 | int nb_jobs) | ||
376 | { | ||
377 | ✗ | FadeContext *s = ctx->priv; | |
378 | ✗ | AVFrame *frame = arg; | |
379 | ✗ | int plane = s->is_packed_rgb ? 0 : A; | |
380 | ✗ | int slice_start = (frame->height * jobnr ) / nb_jobs; | |
381 | ✗ | int slice_end = (frame->height * (jobnr+1)) / nb_jobs; | |
382 | int i, j; | ||
383 | |||
384 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
385 | ✗ | uint8_t *p = frame->data[plane] + i * frame->linesize[plane] + s->is_packed_rgb*s->rgba_map[A]; | |
386 | ✗ | int step = s->is_packed_rgb ? 4 : 1; | |
387 | ✗ | for (j = 0; j < frame->width; j++) { | |
388 | /* s->factor is using 16 lower-order bits for decimal | ||
389 | * places. 32768 = 1 << 15, it is an integer representation | ||
390 | * of 0.5 and is for rounding. */ | ||
391 | ✗ | *p = ((*p - s->black_level) * s->factor + s->black_level_scaled) >> 16; | |
392 | ✗ | p += step; | |
393 | } | ||
394 | } | ||
395 | |||
396 | ✗ | return 0; | |
397 | } | ||
398 | |||
399 | ✗ | static int filter_slice_alpha16(AVFilterContext *ctx, void *arg, int jobnr, | |
400 | int nb_jobs) | ||
401 | { | ||
402 | ✗ | FadeContext *s = ctx->priv; | |
403 | ✗ | AVFrame *frame = arg; | |
404 | ✗ | int plane = s->is_packed_rgb ? 0 : A; | |
405 | ✗ | int slice_start = (frame->height * jobnr ) / nb_jobs; | |
406 | ✗ | int slice_end = (frame->height * (jobnr+1)) / nb_jobs; | |
407 | int i, j; | ||
408 | |||
409 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
410 | ✗ | uint16_t *p = (uint16_t *)(frame->data[plane] + i * frame->linesize[plane]) + s->is_packed_rgb*s->rgba_map[A]; | |
411 | ✗ | int step = s->is_packed_rgb ? 4 : 1; | |
412 | ✗ | for (j = 0; j < frame->width; j++) { | |
413 | /* s->factor is using 16 lower-order bits for decimal | ||
414 | * places. 32768 = 1 << 15, it is an integer representation | ||
415 | * of 0.5 and is for rounding. */ | ||
416 | ✗ | *p = ((*p - s->black_level) * s->factor + s->black_level_scaled) >> 16; | |
417 | ✗ | p += step; | |
418 | } | ||
419 | } | ||
420 | |||
421 | ✗ | return 0; | |
422 | } | ||
423 | |||
424 | 2 | static int config_input(AVFilterLink *inlink) | |
425 | { | ||
426 | 2 | FadeContext *s = inlink->dst->priv; | |
427 | 2 | const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(inlink->format); | |
428 | |||
429 | 2 | s->hsub = pixdesc->log2_chroma_w; | |
430 | 2 | s->vsub = pixdesc->log2_chroma_h; | |
431 | |||
432 | 2 | ff_fill_rgba_map(s->rgba_map, inlink->format); | |
433 | |||
434 | 2 | s->depth = pixdesc->comp[0].depth; | |
435 | 4 | s->bpp = pixdesc->flags & AV_PIX_FMT_FLAG_PLANAR ? | |
436 |
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2 | 1 : |
437 | ✗ | av_get_bits_per_pixel(pixdesc) >> 3; | |
438 | 2 | s->alpha &= !!(pixdesc->flags & AV_PIX_FMT_FLAG_ALPHA); | |
439 | 2 | s->is_planar = pixdesc->flags & AV_PIX_FMT_FLAG_PLANAR; | |
440 | 2 | s->is_rgb = pixdesc->flags & AV_PIX_FMT_FLAG_RGB; | |
441 |
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2 | s->is_packed_rgb = !s->is_planar && s->is_rgb; |
442 | |||
443 |
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2 | if (s->duration) |
444 | ✗ | s->duration_pts = av_rescale_q(s->duration, AV_TIME_BASE_Q, inlink->time_base); | |
445 |
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2 | if (s->start_time) |
446 | ✗ | s->start_time_pts = av_rescale_q(s->start_time, AV_TIME_BASE_Q, inlink->time_base); | |
447 | |||
448 | /* use CCIR601/709 black level for studio-level pixel non-alpha components */ | ||
449 | 2 | s->black_level = | |
450 |
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2 | ff_fmt_is_in(inlink->format, studio_level_pix_fmts) && !s->alpha ? 16 * (1 << (s->depth - 8)): 0; |
451 | /* 32768 = 1 << 15, it is an integer representation | ||
452 | * of 0.5 and is for rounding. */ | ||
453 | 2 | s->black_level_scaled = (s->black_level << 16) + 32768; | |
454 | |||
455 |
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2 | s->filter_slice_luma = s->depth <= 8 ? filter_slice_luma : filter_slice_luma16; |
456 |
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2 | s->filter_slice_chroma = s->depth <= 8 ? filter_slice_chroma : filter_slice_chroma16; |
457 |
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2 | s->filter_slice_alpha = s->depth <= 8 ? filter_slice_alpha : filter_slice_alpha16; |
458 | |||
459 | 2 | return 0; | |
460 | } | ||
461 | |||
462 | 100 | static int filter_frame(AVFilterLink *inlink, AVFrame *frame) | |
463 | { | ||
464 | 100 | FilterLink *inl = ff_filter_link(inlink); | |
465 | 100 | AVFilterContext *ctx = inlink->dst; | |
466 | 100 | FadeContext *s = ctx->priv; | |
467 | |||
468 | // Calculate Fade assuming this is a Fade In | ||
469 |
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100 | if (s->fade_state == VF_FADE_WAITING) { |
470 | 37 | s->factor=0; | |
471 |
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37 | if (frame->pts >= s->start_time_pts |
472 |
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37 | && inl->frame_count_out >= s->start_frame) { |
473 | // Time to start fading | ||
474 | 2 | s->fade_state = VF_FADE_FADING; | |
475 | |||
476 | // Save start time in case we are starting based on frames and fading based on time | ||
477 |
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2 | if (s->start_time_pts == 0 && s->start_frame != 0) { |
478 | 2 | s->start_time_pts = frame->pts; | |
479 | } | ||
480 | |||
481 | // Save start frame in case we are starting based on time and fading based on frames | ||
482 |
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2 | if (s->start_time_pts != 0 && s->start_frame == 0) { |
483 | ✗ | s->start_frame = inl->frame_count_out; | |
484 | } | ||
485 | } | ||
486 | } | ||
487 |
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100 | if (s->fade_state == VF_FADE_FADING) { |
488 |
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34 | if (s->duration_pts == 0) { |
489 | // Fading based on frame count | ||
490 | 34 | s->factor = (inl->frame_count_out - s->start_frame) * s->fade_per_frame; | |
491 |
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34 | if (inl->frame_count_out > s->start_frame + s->nb_frames) { |
492 | 2 | s->fade_state = VF_FADE_DONE; | |
493 | } | ||
494 | |||
495 | } else { | ||
496 | // Fading based on duration | ||
497 | ✗ | s->factor = (frame->pts - s->start_time_pts) * UINT16_MAX / s->duration_pts; | |
498 | ✗ | if (frame->pts > s->start_time_pts + s->duration_pts) { | |
499 | ✗ | s->fade_state = VF_FADE_DONE; | |
500 | } | ||
501 | } | ||
502 | } | ||
503 |
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100 | if (s->fade_state == VF_FADE_DONE) { |
504 | 33 | s->factor=UINT16_MAX; | |
505 | } | ||
506 | |||
507 | 100 | s->factor = av_clip_uint16(s->factor); | |
508 | |||
509 | // Invert fade_factor if Fading Out | ||
510 |
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100 | if (s->type == FADE_OUT) { |
511 | 50 | s->factor=UINT16_MAX-s->factor; | |
512 | } | ||
513 | |||
514 |
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100 | if (s->factor < UINT16_MAX) { |
515 |
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39 | if (s->alpha) { |
516 | ✗ | ff_filter_execute(ctx, s->filter_slice_alpha, frame, NULL, | |
517 | ✗ | FFMIN(frame->height, ff_filter_get_nb_threads(ctx))); | |
518 |
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39 | } else if (s->is_rgb && !s->black_fade) { |
519 | ✗ | ff_filter_execute(ctx, filter_slice_rgb, frame, NULL, | |
520 | ✗ | FFMIN(frame->height, ff_filter_get_nb_threads(ctx))); | |
521 | } else { | ||
522 | /* luma, or rgb plane in case of black */ | ||
523 | 39 | ff_filter_execute(ctx, s->filter_slice_luma, frame, NULL, | |
524 |
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39 | FFMIN(frame->height, ff_filter_get_nb_threads(ctx))); |
525 | |||
526 |
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39 | if (frame->data[1] && frame->data[2] && !s->is_rgb) { |
527 | /* chroma planes */ | ||
528 | 39 | ff_filter_execute(ctx, s->filter_slice_chroma, frame, NULL, | |
529 |
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39 | FFMIN(frame->height, ff_filter_get_nb_threads(ctx))); |
530 | } | ||
531 | } | ||
532 | } | ||
533 | |||
534 | 100 | return ff_filter_frame(inlink->dst->outputs[0], frame); | |
535 | } | ||
536 | |||
537 | |||
538 | #define OFFSET(x) offsetof(FadeContext, x) | ||
539 | #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM | ||
540 | |||
541 | static const AVOption fade_options[] = { | ||
542 | { "type", "set the fade direction", OFFSET(type), AV_OPT_TYPE_INT, { .i64 = FADE_IN }, FADE_IN, FADE_OUT, FLAGS, .unit = "type" }, | ||
543 | { "t", "set the fade direction", OFFSET(type), AV_OPT_TYPE_INT, { .i64 = FADE_IN }, FADE_IN, FADE_OUT, FLAGS, .unit = "type" }, | ||
544 | { "in", "fade-in", 0, AV_OPT_TYPE_CONST, { .i64 = FADE_IN }, .flags = FLAGS, .unit = "type" }, | ||
545 | { "out", "fade-out", 0, AV_OPT_TYPE_CONST, { .i64 = FADE_OUT }, .flags = FLAGS, .unit = "type" }, | ||
546 | { "start_frame", "Number of the first frame to which to apply the effect.", | ||
547 | OFFSET(start_frame), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS }, | ||
548 | { "s", "Number of the first frame to which to apply the effect.", | ||
549 | OFFSET(start_frame), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS }, | ||
550 | { "nb_frames", "Number of frames to which the effect should be applied.", | ||
551 | OFFSET(nb_frames), AV_OPT_TYPE_INT, { .i64 = 25 }, 1, INT_MAX, FLAGS }, | ||
552 | { "n", "Number of frames to which the effect should be applied.", | ||
553 | OFFSET(nb_frames), AV_OPT_TYPE_INT, { .i64 = 25 }, 1, INT_MAX, FLAGS }, | ||
554 | { "alpha", "fade alpha if it is available on the input", OFFSET(alpha), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, FLAGS }, | ||
555 | { "start_time", "Number of seconds of the beginning of the effect.", | ||
556 | OFFSET(start_time), AV_OPT_TYPE_DURATION, {.i64 = 0. }, 0, INT64_MAX, FLAGS }, | ||
557 | { "st", "Number of seconds of the beginning of the effect.", | ||
558 | OFFSET(start_time), AV_OPT_TYPE_DURATION, {.i64 = 0. }, 0, INT64_MAX, FLAGS }, | ||
559 | { "duration", "Duration of the effect in seconds.", | ||
560 | OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 0. }, 0, INT64_MAX, FLAGS }, | ||
561 | { "d", "Duration of the effect in seconds.", | ||
562 | OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 0. }, 0, INT64_MAX, FLAGS }, | ||
563 | { "color", "set color", OFFSET(color_rgba), AV_OPT_TYPE_COLOR, {.str = "black"}, 0, 0, FLAGS }, | ||
564 | { "c", "set color", OFFSET(color_rgba), AV_OPT_TYPE_COLOR, {.str = "black"}, 0, 0, FLAGS }, | ||
565 | { NULL } | ||
566 | }; | ||
567 | |||
568 | AVFILTER_DEFINE_CLASS(fade); | ||
569 | |||
570 | static const AVFilterPad avfilter_vf_fade_inputs[] = { | ||
571 | { | ||
572 | .name = "default", | ||
573 | .type = AVMEDIA_TYPE_VIDEO, | ||
574 | .flags = AVFILTERPAD_FLAG_NEEDS_WRITABLE, | ||
575 | .config_props = config_input, | ||
576 | .filter_frame = filter_frame, | ||
577 | }, | ||
578 | }; | ||
579 | |||
580 | const FFFilter ff_vf_fade = { | ||
581 | .p.name = "fade", | ||
582 | .p.description = NULL_IF_CONFIG_SMALL("Fade in/out input video."), | ||
583 | .p.priv_class = &fade_class, | ||
584 | .p.flags = AVFILTER_FLAG_SLICE_THREADS | | ||
585 | AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, | ||
586 | .init = init, | ||
587 | .priv_size = sizeof(FadeContext), | ||
588 | FILTER_INPUTS(avfilter_vf_fade_inputs), | ||
589 | FILTER_OUTPUTS(ff_video_default_filterpad), | ||
590 | FILTER_QUERY_FUNC2(query_formats), | ||
591 | }; | ||
592 |