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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 "formats.h" | ||
37 | #include "internal.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(AVFilterContext *ctx) | |
105 | { | ||
106 | 2 | const FadeContext *s = ctx->priv; | |
107 | static const enum AVPixelFormat pix_fmts[] = { | ||
108 | AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, | ||
109 | AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, | ||
110 | AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, | ||
111 | AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUVJ440P, | ||
112 | AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, | ||
113 | AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, | ||
114 | AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, | ||
115 | AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, | ||
116 | AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, | ||
117 | AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, | ||
118 | AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, | ||
119 | AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, | ||
120 | AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, | ||
121 | AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, | ||
122 | AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, | ||
123 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, | ||
124 | AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, | ||
125 | AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, | ||
126 | AV_PIX_FMT_NONE | ||
127 | }; | ||
128 | static const enum AVPixelFormat pix_fmts_rgb[] = { | ||
129 | AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, | ||
130 | AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, | ||
131 | AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, | ||
132 | AV_PIX_FMT_GBRP, | ||
133 | AV_PIX_FMT_NONE | ||
134 | }; | ||
135 | static const enum AVPixelFormat pix_fmts_alpha[] = { | ||
136 | AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, | ||
137 | AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, | ||
138 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, | ||
139 | AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, | ||
140 | AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, | ||
141 | AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, | ||
142 | AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, | ||
143 | AV_PIX_FMT_GBRAP, | ||
144 | AV_PIX_FMT_NONE | ||
145 | }; | ||
146 | static const enum AVPixelFormat pix_fmts_rgba[] = { | ||
147 | AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, | ||
148 | AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, | ||
149 | AV_PIX_FMT_GBRAP, | ||
150 | AV_PIX_FMT_NONE | ||
151 | }; | ||
152 | const enum AVPixelFormat *pixel_fmts; | ||
153 | |||
154 |
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2 | if (s->alpha) { |
155 | ✗ | if (s->black_fade) | |
156 | ✗ | pixel_fmts = pix_fmts_alpha; | |
157 | else | ||
158 | ✗ | pixel_fmts = pix_fmts_rgba; | |
159 | } else { | ||
160 |
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2 | if (s->black_fade) |
161 | 2 | pixel_fmts = pix_fmts; | |
162 | else | ||
163 | ✗ | pixel_fmts = pix_fmts_rgb; | |
164 | } | ||
165 | 2 | return ff_set_common_formats_from_list(ctx, pixel_fmts); | |
166 | } | ||
167 | |||
168 | const static enum AVPixelFormat studio_level_pix_fmts[] = { | ||
169 | AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, | ||
170 | AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, | ||
171 | AV_PIX_FMT_YUV440P, | ||
172 | AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, | ||
173 | AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, | ||
174 | AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, | ||
175 | AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, | ||
176 | AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, | ||
177 | AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, | ||
178 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, | ||
179 | AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, | ||
180 | AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, | ||
181 | AV_PIX_FMT_NONE | ||
182 | }; | ||
183 | |||
184 | ✗ | static av_always_inline void filter_rgb(FadeContext *s, const AVFrame *frame, | |
185 | int slice_start, int slice_end, | ||
186 | int do_alpha, int step) | ||
187 | { | ||
188 | int i, j; | ||
189 | ✗ | const uint8_t r_idx = s->rgba_map[R]; | |
190 | ✗ | const uint8_t g_idx = s->rgba_map[G]; | |
191 | ✗ | const uint8_t b_idx = s->rgba_map[B]; | |
192 | ✗ | const uint8_t a_idx = s->rgba_map[A]; | |
193 | ✗ | const uint8_t *c = s->color_rgba; | |
194 | |||
195 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
196 | ✗ | uint8_t *p = frame->data[0] + i * frame->linesize[0]; | |
197 | ✗ | for (j = 0; j < frame->width; j++) { | |
198 | #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) | ||
199 | ✗ | p[r_idx] = INTERP(r_idx, 0); | |
200 | ✗ | p[g_idx] = INTERP(g_idx, 1); | |
201 | ✗ | p[b_idx] = INTERP(b_idx, 2); | |
202 | ✗ | if (do_alpha) | |
203 | ✗ | p[a_idx] = INTERP(a_idx, 3); | |
204 | ✗ | p += step; | |
205 | } | ||
206 | } | ||
207 | ✗ | } | |
208 | |||
209 | ✗ | static av_always_inline void filter_rgb_planar(FadeContext *s, const AVFrame *frame, | |
210 | int slice_start, int slice_end, | ||
211 | int do_alpha) | ||
212 | { | ||
213 | int i, j; | ||
214 | ✗ | const uint8_t *c = s->color_rgba; | |
215 | |||
216 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
217 | ✗ | uint8_t *pg = frame->data[0] + i * frame->linesize[0]; | |
218 | ✗ | uint8_t *pb = frame->data[1] + i * frame->linesize[1]; | |
219 | ✗ | uint8_t *pr = frame->data[2] + i * frame->linesize[2]; | |
220 | ✗ | uint8_t *pa = frame->data[3] + i * frame->linesize[3]; | |
221 | ✗ | for (j = 0; j < frame->width; j++) { | |
222 | #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) | ||
223 | ✗ | pr[j] = INTERPP(pr[j], 0); | |
224 | ✗ | pg[j] = INTERPP(pg[j], 1); | |
225 | ✗ | pb[j] = INTERPP(pb[j], 2); | |
226 | ✗ | if (do_alpha) | |
227 | ✗ | pa[j] = INTERPP(pa[j], 3); | |
228 | } | ||
229 | } | ||
230 | ✗ | } | |
231 | |||
232 | ✗ | static int filter_slice_rgb(AVFilterContext *ctx, void *arg, int jobnr, | |
233 | int nb_jobs) | ||
234 | { | ||
235 | ✗ | FadeContext *s = ctx->priv; | |
236 | ✗ | AVFrame *frame = arg; | |
237 | ✗ | int slice_start = (frame->height * jobnr ) / nb_jobs; | |
238 | ✗ | int slice_end = (frame->height * (jobnr+1)) / nb_jobs; | |
239 | |||
240 | ✗ | if (s->is_planar && s->alpha) | |
241 | ✗ | filter_rgb_planar(s, frame, slice_start, slice_end, 1); | |
242 | ✗ | else if (s->is_planar) | |
243 | ✗ | filter_rgb_planar(s, frame, slice_start, slice_end, 0); | |
244 | ✗ | else if (s->alpha) filter_rgb(s, frame, slice_start, slice_end, 1, 4); | |
245 | ✗ | else if (s->bpp == 3) filter_rgb(s, frame, slice_start, slice_end, 0, 3); | |
246 | ✗ | else if (s->bpp == 4) filter_rgb(s, frame, slice_start, slice_end, 0, 4); | |
247 | ✗ | else av_assert0(0); | |
248 | |||
249 | ✗ | return 0; | |
250 | } | ||
251 | |||
252 | 351 | static int filter_slice_luma(AVFilterContext *ctx, void *arg, int jobnr, | |
253 | int nb_jobs) | ||
254 | { | ||
255 | 351 | FadeContext *s = ctx->priv; | |
256 | 351 | AVFrame *frame = arg; | |
257 | 351 | int slice_start = (frame->height * jobnr ) / nb_jobs; | |
258 | 351 | int slice_end = (frame->height * (jobnr+1)) / nb_jobs; | |
259 | int i, j; | ||
260 | |||
261 |
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702 | for (int k = 0; k < 1 + 2 * (s->is_planar && s->is_rgb); k++) { |
262 |
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11583 | for (i = slice_start; i < slice_end; i++) { |
263 | 11232 | uint8_t *p = frame->data[k] + i * frame->linesize[k]; | |
264 |
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3964896 | for (j = 0; j < frame->width * s->bpp; j++) { |
265 | /* s->factor is using 16 lower-order bits for decimal | ||
266 | * places. 32768 = 1 << 15, it is an integer representation | ||
267 | * of 0.5 and is for rounding. */ | ||
268 | 3953664 | *p = ((*p - s->black_level) * s->factor + s->black_level_scaled) >> 16; | |
269 | 3953664 | p++; | |
270 | } | ||
271 | } | ||
272 | } | ||
273 | |||
274 | 351 | return 0; | |
275 | } | ||
276 | |||
277 | ✗ | static int filter_slice_luma16(AVFilterContext *ctx, void *arg, int jobnr, | |
278 | int nb_jobs) | ||
279 | { | ||
280 | ✗ | FadeContext *s = ctx->priv; | |
281 | ✗ | AVFrame *frame = arg; | |
282 | ✗ | int slice_start = (frame->height * jobnr ) / nb_jobs; | |
283 | ✗ | int slice_end = (frame->height * (jobnr+1)) / nb_jobs; | |
284 | int i, j; | ||
285 | |||
286 | ✗ | for (int k = 0; k < 1 + 2 * (s->is_planar && s->is_rgb); k++) { | |
287 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
288 | ✗ | uint16_t *p = (uint16_t *)(frame->data[k] + i * frame->linesize[k]); | |
289 | ✗ | for (j = 0; j < frame->width * s->bpp; j++) { | |
290 | /* s->factor is using 16 lower-order bits for decimal | ||
291 | * places. 32768 = 1 << 15, it is an integer representation | ||
292 | * of 0.5 and is for rounding. */ | ||
293 | ✗ | *p = ((*p - s->black_level) * s->factor + s->black_level_scaled) >> 16; | |
294 | ✗ | p++; | |
295 | } | ||
296 | } | ||
297 | } | ||
298 | |||
299 | ✗ | return 0; | |
300 | } | ||
301 | |||
302 | 351 | static int filter_slice_chroma(AVFilterContext *ctx, void *arg, int jobnr, | |
303 | int nb_jobs) | ||
304 | { | ||
305 | 351 | FadeContext *s = ctx->priv; | |
306 | 351 | AVFrame *frame = arg; | |
307 | int i, j, plane; | ||
308 | 351 | const int width = AV_CEIL_RSHIFT(frame->width, s->hsub); | |
309 | 351 | const int height= AV_CEIL_RSHIFT(frame->height, s->vsub); | |
310 | 351 | int slice_start = (height * jobnr ) / nb_jobs; | |
311 | 351 | int slice_end = FFMIN(((height * (jobnr+1)) / nb_jobs), frame->height); | |
312 | |||
313 |
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1053 | for (plane = 1; plane < 3; plane++) { |
314 |
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11934 | for (i = slice_start; i < slice_end; i++) { |
315 | 11232 | uint8_t *p = frame->data[plane] + i * frame->linesize[plane]; | |
316 |
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1988064 | for (j = 0; j < width; j++) { |
317 | /* 8421367 = ((128 << 1) + 1) << 15. It is an integer | ||
318 | * representation of 128.5. The .5 is for rounding | ||
319 | * purposes. */ | ||
320 | 1976832 | *p = ((*p - 128) * s->factor + 8421367) >> 16; | |
321 | 1976832 | p++; | |
322 | } | ||
323 | } | ||
324 | } | ||
325 | |||
326 | 351 | return 0; | |
327 | } | ||
328 | |||
329 | ✗ | static int filter_slice_chroma16(AVFilterContext *ctx, void *arg, int jobnr, | |
330 | int nb_jobs) | ||
331 | { | ||
332 | ✗ | FadeContext *s = ctx->priv; | |
333 | ✗ | AVFrame *frame = arg; | |
334 | int i, j, plane; | ||
335 | ✗ | const int width = AV_CEIL_RSHIFT(frame->width, s->hsub); | |
336 | ✗ | const int height= AV_CEIL_RSHIFT(frame->height, s->vsub); | |
337 | ✗ | const int mid = 1 << (s->depth - 1); | |
338 | ✗ | const int add = ((mid << 1) + 1) << 15; | |
339 | ✗ | int slice_start = (height * jobnr ) / nb_jobs; | |
340 | ✗ | int slice_end = FFMIN(((height * (jobnr+1)) / nb_jobs), frame->height); | |
341 | |||
342 | ✗ | for (plane = 1; plane < 3; plane++) { | |
343 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
344 | ✗ | uint16_t *p = (uint16_t *)(frame->data[plane] + i * frame->linesize[plane]); | |
345 | ✗ | for (j = 0; j < width; j++) { | |
346 | ✗ | *p = ((*p - mid) * s->factor + add) >> 16; | |
347 | ✗ | p++; | |
348 | } | ||
349 | } | ||
350 | } | ||
351 | |||
352 | ✗ | return 0; | |
353 | } | ||
354 | |||
355 | ✗ | static int filter_slice_alpha(AVFilterContext *ctx, void *arg, int jobnr, | |
356 | int nb_jobs) | ||
357 | { | ||
358 | ✗ | FadeContext *s = ctx->priv; | |
359 | ✗ | AVFrame *frame = arg; | |
360 | ✗ | int plane = s->is_packed_rgb ? 0 : A; | |
361 | ✗ | int slice_start = (frame->height * jobnr ) / nb_jobs; | |
362 | ✗ | int slice_end = (frame->height * (jobnr+1)) / nb_jobs; | |
363 | int i, j; | ||
364 | |||
365 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
366 | ✗ | uint8_t *p = frame->data[plane] + i * frame->linesize[plane] + s->is_packed_rgb*s->rgba_map[A]; | |
367 | ✗ | int step = s->is_packed_rgb ? 4 : 1; | |
368 | ✗ | for (j = 0; j < frame->width; j++) { | |
369 | /* s->factor is using 16 lower-order bits for decimal | ||
370 | * places. 32768 = 1 << 15, it is an integer representation | ||
371 | * of 0.5 and is for rounding. */ | ||
372 | ✗ | *p = ((*p - s->black_level) * s->factor + s->black_level_scaled) >> 16; | |
373 | ✗ | p += step; | |
374 | } | ||
375 | } | ||
376 | |||
377 | ✗ | return 0; | |
378 | } | ||
379 | |||
380 | ✗ | static int filter_slice_alpha16(AVFilterContext *ctx, void *arg, int jobnr, | |
381 | int nb_jobs) | ||
382 | { | ||
383 | ✗ | FadeContext *s = ctx->priv; | |
384 | ✗ | AVFrame *frame = arg; | |
385 | ✗ | int plane = s->is_packed_rgb ? 0 : A; | |
386 | ✗ | int slice_start = (frame->height * jobnr ) / nb_jobs; | |
387 | ✗ | int slice_end = (frame->height * (jobnr+1)) / nb_jobs; | |
388 | int i, j; | ||
389 | |||
390 | ✗ | for (i = slice_start; i < slice_end; i++) { | |
391 | ✗ | uint16_t *p = (uint16_t *)(frame->data[plane] + i * frame->linesize[plane]) + s->is_packed_rgb*s->rgba_map[A]; | |
392 | ✗ | int step = s->is_packed_rgb ? 4 : 1; | |
393 | ✗ | for (j = 0; j < frame->width; j++) { | |
394 | /* s->factor is using 16 lower-order bits for decimal | ||
395 | * places. 32768 = 1 << 15, it is an integer representation | ||
396 | * of 0.5 and is for rounding. */ | ||
397 | ✗ | *p = ((*p - s->black_level) * s->factor + s->black_level_scaled) >> 16; | |
398 | ✗ | p += step; | |
399 | } | ||
400 | } | ||
401 | |||
402 | ✗ | return 0; | |
403 | } | ||
404 | |||
405 | 2 | static int config_input(AVFilterLink *inlink) | |
406 | { | ||
407 | 2 | FadeContext *s = inlink->dst->priv; | |
408 | 2 | const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(inlink->format); | |
409 | |||
410 | 2 | s->hsub = pixdesc->log2_chroma_w; | |
411 | 2 | s->vsub = pixdesc->log2_chroma_h; | |
412 | |||
413 | 2 | ff_fill_rgba_map(s->rgba_map, inlink->format); | |
414 | |||
415 | 2 | s->depth = pixdesc->comp[0].depth; | |
416 | 4 | s->bpp = pixdesc->flags & AV_PIX_FMT_FLAG_PLANAR ? | |
417 |
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2 | 1 : |
418 | ✗ | av_get_bits_per_pixel(pixdesc) >> 3; | |
419 | 2 | s->alpha &= !!(pixdesc->flags & AV_PIX_FMT_FLAG_ALPHA); | |
420 | 2 | s->is_planar = pixdesc->flags & AV_PIX_FMT_FLAG_PLANAR; | |
421 | 2 | s->is_rgb = pixdesc->flags & AV_PIX_FMT_FLAG_RGB; | |
422 |
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2 | s->is_packed_rgb = !s->is_planar && s->is_rgb; |
423 | |||
424 |
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2 | if (s->duration) |
425 | ✗ | s->duration_pts = av_rescale_q(s->duration, AV_TIME_BASE_Q, inlink->time_base); | |
426 |
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2 | if (s->start_time) |
427 | ✗ | s->start_time_pts = av_rescale_q(s->start_time, AV_TIME_BASE_Q, inlink->time_base); | |
428 | |||
429 | /* use CCIR601/709 black level for studio-level pixel non-alpha components */ | ||
430 | 2 | s->black_level = | |
431 |
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2 | ff_fmt_is_in(inlink->format, studio_level_pix_fmts) && !s->alpha ? 16 * (1 << (s->depth - 8)): 0; |
432 | /* 32768 = 1 << 15, it is an integer representation | ||
433 | * of 0.5 and is for rounding. */ | ||
434 | 2 | s->black_level_scaled = (s->black_level << 16) + 32768; | |
435 | |||
436 |
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2 | s->filter_slice_luma = s->depth <= 8 ? filter_slice_luma : filter_slice_luma16; |
437 |
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2 | s->filter_slice_chroma = s->depth <= 8 ? filter_slice_chroma : filter_slice_chroma16; |
438 |
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2 | s->filter_slice_alpha = s->depth <= 8 ? filter_slice_alpha : filter_slice_alpha16; |
439 | |||
440 | 2 | return 0; | |
441 | } | ||
442 | |||
443 | 100 | static int filter_frame(AVFilterLink *inlink, AVFrame *frame) | |
444 | { | ||
445 | 100 | AVFilterContext *ctx = inlink->dst; | |
446 | 100 | FadeContext *s = ctx->priv; | |
447 | |||
448 | // Calculate Fade assuming this is a Fade In | ||
449 |
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100 | if (s->fade_state == VF_FADE_WAITING) { |
450 | 37 | s->factor=0; | |
451 |
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37 | if (frame->pts >= s->start_time_pts |
452 |
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37 | && inlink->frame_count_out >= s->start_frame) { |
453 | // Time to start fading | ||
454 | 2 | s->fade_state = VF_FADE_FADING; | |
455 | |||
456 | // Save start time in case we are starting based on frames and fading based on time | ||
457 |
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2 | if (s->start_time_pts == 0 && s->start_frame != 0) { |
458 | 2 | s->start_time_pts = frame->pts; | |
459 | } | ||
460 | |||
461 | // Save start frame in case we are starting based on time and fading based on frames | ||
462 |
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2 | if (s->start_time_pts != 0 && s->start_frame == 0) { |
463 | ✗ | s->start_frame = inlink->frame_count_out; | |
464 | } | ||
465 | } | ||
466 | } | ||
467 |
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100 | if (s->fade_state == VF_FADE_FADING) { |
468 |
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34 | if (s->duration_pts == 0) { |
469 | // Fading based on frame count | ||
470 | 34 | s->factor = (inlink->frame_count_out - s->start_frame) * s->fade_per_frame; | |
471 |
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34 | if (inlink->frame_count_out > s->start_frame + s->nb_frames) { |
472 | 2 | s->fade_state = VF_FADE_DONE; | |
473 | } | ||
474 | |||
475 | } else { | ||
476 | // Fading based on duration | ||
477 | ✗ | s->factor = (frame->pts - s->start_time_pts) * UINT16_MAX / s->duration_pts; | |
478 | ✗ | if (frame->pts > s->start_time_pts + s->duration_pts) { | |
479 | ✗ | s->fade_state = VF_FADE_DONE; | |
480 | } | ||
481 | } | ||
482 | } | ||
483 |
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100 | if (s->fade_state == VF_FADE_DONE) { |
484 | 33 | s->factor=UINT16_MAX; | |
485 | } | ||
486 | |||
487 | 100 | s->factor = av_clip_uint16(s->factor); | |
488 | |||
489 | // Invert fade_factor if Fading Out | ||
490 |
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100 | if (s->type == FADE_OUT) { |
491 | 50 | s->factor=UINT16_MAX-s->factor; | |
492 | } | ||
493 | |||
494 |
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100 | if (s->factor < UINT16_MAX) { |
495 |
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39 | if (s->alpha) { |
496 | ✗ | ff_filter_execute(ctx, s->filter_slice_alpha, frame, NULL, | |
497 | ✗ | FFMIN(frame->height, ff_filter_get_nb_threads(ctx))); | |
498 |
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39 | } else if (s->is_rgb && !s->black_fade) { |
499 | ✗ | ff_filter_execute(ctx, filter_slice_rgb, frame, NULL, | |
500 | ✗ | FFMIN(frame->height, ff_filter_get_nb_threads(ctx))); | |
501 | } else { | ||
502 | /* luma, or rgb plane in case of black */ | ||
503 | 39 | ff_filter_execute(ctx, s->filter_slice_luma, frame, NULL, | |
504 |
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39 | FFMIN(frame->height, ff_filter_get_nb_threads(ctx))); |
505 | |||
506 |
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39 | if (frame->data[1] && frame->data[2] && !s->is_rgb) { |
507 | /* chroma planes */ | ||
508 | 39 | ff_filter_execute(ctx, s->filter_slice_chroma, frame, NULL, | |
509 |
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39 | FFMIN(frame->height, ff_filter_get_nb_threads(ctx))); |
510 | } | ||
511 | } | ||
512 | } | ||
513 | |||
514 | 100 | return ff_filter_frame(inlink->dst->outputs[0], frame); | |
515 | } | ||
516 | |||
517 | |||
518 | #define OFFSET(x) offsetof(FadeContext, x) | ||
519 | #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM | ||
520 | |||
521 | static const AVOption fade_options[] = { | ||
522 | { "type", "set the fade direction", OFFSET(type), AV_OPT_TYPE_INT, { .i64 = FADE_IN }, FADE_IN, FADE_OUT, FLAGS, .unit = "type" }, | ||
523 | { "t", "set the fade direction", OFFSET(type), AV_OPT_TYPE_INT, { .i64 = FADE_IN }, FADE_IN, FADE_OUT, FLAGS, .unit = "type" }, | ||
524 | { "in", "fade-in", 0, AV_OPT_TYPE_CONST, { .i64 = FADE_IN }, .flags = FLAGS, .unit = "type" }, | ||
525 | { "out", "fade-out", 0, AV_OPT_TYPE_CONST, { .i64 = FADE_OUT }, .flags = FLAGS, .unit = "type" }, | ||
526 | { "start_frame", "Number of the first frame to which to apply the effect.", | ||
527 | OFFSET(start_frame), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS }, | ||
528 | { "s", "Number of the first frame to which to apply the effect.", | ||
529 | OFFSET(start_frame), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS }, | ||
530 | { "nb_frames", "Number of frames to which the effect should be applied.", | ||
531 | OFFSET(nb_frames), AV_OPT_TYPE_INT, { .i64 = 25 }, 1, INT_MAX, FLAGS }, | ||
532 | { "n", "Number of frames to which the effect should be applied.", | ||
533 | OFFSET(nb_frames), AV_OPT_TYPE_INT, { .i64 = 25 }, 1, INT_MAX, FLAGS }, | ||
534 | { "alpha", "fade alpha if it is available on the input", OFFSET(alpha), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, FLAGS }, | ||
535 | { "start_time", "Number of seconds of the beginning of the effect.", | ||
536 | OFFSET(start_time), AV_OPT_TYPE_DURATION, {.i64 = 0. }, 0, INT64_MAX, FLAGS }, | ||
537 | { "st", "Number of seconds of the beginning of the effect.", | ||
538 | OFFSET(start_time), AV_OPT_TYPE_DURATION, {.i64 = 0. }, 0, INT64_MAX, FLAGS }, | ||
539 | { "duration", "Duration of the effect in seconds.", | ||
540 | OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 0. }, 0, INT64_MAX, FLAGS }, | ||
541 | { "d", "Duration of the effect in seconds.", | ||
542 | OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 0. }, 0, INT64_MAX, FLAGS }, | ||
543 | { "color", "set color", OFFSET(color_rgba), AV_OPT_TYPE_COLOR, {.str = "black"}, 0, 0, FLAGS }, | ||
544 | { "c", "set color", OFFSET(color_rgba), AV_OPT_TYPE_COLOR, {.str = "black"}, 0, 0, FLAGS }, | ||
545 | { NULL } | ||
546 | }; | ||
547 | |||
548 | AVFILTER_DEFINE_CLASS(fade); | ||
549 | |||
550 | static const AVFilterPad avfilter_vf_fade_inputs[] = { | ||
551 | { | ||
552 | .name = "default", | ||
553 | .type = AVMEDIA_TYPE_VIDEO, | ||
554 | .flags = AVFILTERPAD_FLAG_NEEDS_WRITABLE, | ||
555 | .config_props = config_input, | ||
556 | .filter_frame = filter_frame, | ||
557 | }, | ||
558 | }; | ||
559 | |||
560 | const AVFilter ff_vf_fade = { | ||
561 | .name = "fade", | ||
562 | .description = NULL_IF_CONFIG_SMALL("Fade in/out input video."), | ||
563 | .init = init, | ||
564 | .priv_size = sizeof(FadeContext), | ||
565 | .priv_class = &fade_class, | ||
566 | FILTER_INPUTS(avfilter_vf_fade_inputs), | ||
567 | FILTER_OUTPUTS(ff_video_default_filterpad), | ||
568 | FILTER_QUERY_FUNC(query_formats), | ||
569 | .flags = AVFILTER_FLAG_SLICE_THREADS | | ||
570 | AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, | ||
571 | }; | ||
572 |