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1 | /* |
2 | * Copyright (c) 2010 Stefano Sabatini | |
3 | * This file is part of FFmpeg. | |
4 | * | |
5 | * FFmpeg is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU Lesser General Public | |
7 | * License as published by the Free Software Foundation; either | |
8 | * version 2.1 of the License, or (at your option) any later version. | |
9 | * | |
10 | * FFmpeg is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with FFmpeg; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | */ | |
19 | ||
20 | /** | |
21 | * @file | |
22 | * frei0r wrapper | |
23 | */ | |
24 | ||
25 | #include <dlfcn.h> | |
26 | #include <frei0r.h> | |
27 | #include <stdio.h> | |
28 | #include <string.h> | |
29 | #include <stdlib.h> | |
30 | #include "config.h" | |
31 | #include "libavutil/avstring.h" | |
32 | #include "libavutil/common.h" | |
33 | #include "libavutil/imgutils.h" | |
34 | #include "libavutil/internal.h" | |
35 | #include "libavutil/mathematics.h" | |
36 | #include "libavutil/mem.h" | |
37 | #include "libavutil/opt.h" | |
38 | #include "libavutil/parseutils.h" | |
39 | #include "avfilter.h" | |
40 | #include "formats.h" | |
41 | #include "internal.h" | |
42 | #include "video.h" | |
43 | ||
44 | typedef f0r_instance_t (*f0r_construct_f)(unsigned int width, unsigned int height); | |
45 | typedef void (*f0r_destruct_f)(f0r_instance_t instance); | |
46 | typedef void (*f0r_deinit_f)(void); | |
47 | typedef int (*f0r_init_f)(void); | |
48 | typedef void (*f0r_get_plugin_info_f)(f0r_plugin_info_t *info); | |
49 | typedef void (*f0r_get_param_info_f)(f0r_param_info_t *info, int param_index); | |
50 | typedef void (*f0r_update_f)(f0r_instance_t instance, double time, const uint32_t *inframe, uint32_t *outframe); | |
51 | typedef void (*f0r_update2_f)(f0r_instance_t instance, double time, const uint32_t *inframe1, const uint32_t *inframe2, const uint32_t *inframe3, uint32_t *outframe); | |
52 | typedef void (*f0r_set_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index); | |
53 | typedef void (*f0r_get_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index); | |
54 | ||
55 | typedef struct Frei0rContext { | |
56 | const AVClass *class; | |
57 | f0r_update_f update; | |
58 | void *dl_handle; /* dynamic library handle */ | |
59 | f0r_instance_t instance; | |
60 | f0r_plugin_info_t plugin_info; | |
61 | ||
62 | f0r_get_param_info_f get_param_info; | |
63 | f0r_get_param_value_f get_param_value; | |
64 | f0r_set_param_value_f set_param_value; | |
65 | f0r_construct_f construct; | |
66 | f0r_destruct_f destruct; | |
67 | f0r_deinit_f deinit; | |
68 | ||
69 | char *dl_name; | |
70 | char *params; | |
71 | AVRational framerate; | |
72 | ||
73 | /* only used by the source */ | |
74 | int w, h; | |
75 | AVRational time_base; | |
76 | uint64_t pts; | |
77 | } Frei0rContext; | |
78 | ||
79 | static void *load_sym(AVFilterContext *ctx, const char *sym_name) | |
80 | { | |
81 | Frei0rContext *s = ctx->priv; | |
82 | void *sym = dlsym(s->dl_handle, sym_name); | |
83 | if (!sym) | |
84 | av_log(ctx, AV_LOG_ERROR, "Could not find symbol '%s' in loaded module.\n", sym_name); | |
85 | return sym; | |
86 | } | |
87 | ||
88 | static int set_param(AVFilterContext *ctx, f0r_param_info_t info, int index, char *param) | |
89 | { | |
90 | Frei0rContext *s = ctx->priv; | |
91 | union { | |
92 | double d; | |
93 | f0r_param_color_t col; | |
94 | f0r_param_position_t pos; | |
95 | } val; | |
96 | char *tail; | |
97 | uint8_t rgba[4]; | |
98 | ||
99 | switch (info.type) { | |
100 | case F0R_PARAM_BOOL: | |
101 | if (!strcmp(param, "y")) val.d = 1.0; | |
102 | else if (!strcmp(param, "n")) val.d = 0.0; | |
103 | else goto fail; | |
104 | break; | |
105 | ||
106 | case F0R_PARAM_DOUBLE: | |
107 | val.d = strtod(param, &tail); | |
108 | if (*tail || val.d == HUGE_VAL) | |
109 | goto fail; | |
110 | break; | |
111 | ||
112 | case F0R_PARAM_COLOR: | |
113 | if (sscanf(param, "%f/%f/%f", &val.col.r, &val.col.g, &val.col.b) != 3) { | |
114 | if (av_parse_color(rgba, param, -1, ctx) < 0) | |
115 | goto fail; | |
116 | val.col.r = rgba[0] / 255.0; | |
117 | val.col.g = rgba[1] / 255.0; | |
118 | val.col.b = rgba[2] / 255.0; | |
119 | } | |
120 | break; | |
121 | ||
122 | case F0R_PARAM_POSITION: | |
123 | if (sscanf(param, "%lf/%lf", &val.pos.x, &val.pos.y) != 2) | |
124 | goto fail; | |
125 | break; | |
126 | } | |
127 | ||
128 | s->set_param_value(s->instance, &val, index); | |
129 | return 0; | |
130 | ||
131 | fail: | |
132 | av_log(ctx, AV_LOG_ERROR, "Invalid value '%s' for parameter '%s'.\n", | |
133 | param, info.name); | |
134 | return AVERROR(EINVAL); | |
135 | } | |
136 | ||
137 | static int set_params(AVFilterContext *ctx, const char *params) | |
138 | { | |
139 | Frei0rContext *s = ctx->priv; | |
140 | int i; | |
141 | ||
142 | if (!params) | |
143 | return 0; | |
144 | ||
145 | for (i = 0; i < s->plugin_info.num_params; i++) { | |
146 | f0r_param_info_t info; | |
147 | char *param; | |
148 | int ret; | |
149 | ||
150 | s->get_param_info(&info, i); | |
151 | ||
152 | if (*params) { | |
153 | if (!(param = av_get_token(¶ms, "|"))) | |
154 | return AVERROR(ENOMEM); | |
155 | if (*params) | |
156 | params++; /* skip ':' */ | |
157 | ret = set_param(ctx, info, i, param); | |
158 | av_free(param); | |
159 | if (ret < 0) | |
160 | return ret; | |
161 | } | |
162 | ||
163 | av_log(ctx, AV_LOG_VERBOSE, | |
164 | "idx:%d name:'%s' type:%s explanation:'%s' ", | |
165 | i, info.name, | |
166 | info.type == F0R_PARAM_BOOL ? "bool" : | |
167 | info.type == F0R_PARAM_DOUBLE ? "double" : | |
168 | info.type == F0R_PARAM_COLOR ? "color" : | |
169 | info.type == F0R_PARAM_POSITION ? "position" : | |
170 | info.type == F0R_PARAM_STRING ? "string" : "unknown", | |
171 | info.explanation); | |
172 | ||
173 | #ifdef DEBUG | |
174 | av_log(ctx, AV_LOG_DEBUG, "value:"); | |
175 | switch (info.type) { | |
176 | void *v; | |
177 | double d; | |
178 | char s[128]; | |
179 | f0r_param_color_t col; | |
180 | f0r_param_position_t pos; | |
181 | ||
182 | case F0R_PARAM_BOOL: | |
183 | v = &d; | |
184 | s->get_param_value(s->instance, v, i); | |
185 | av_log(ctx, AV_LOG_DEBUG, "%s", d >= 0.5 && d <= 1.0 ? "y" : "n"); | |
186 | break; | |
187 | case F0R_PARAM_DOUBLE: | |
188 | v = &d; | |
189 | s->get_param_value(s->instance, v, i); | |
190 | av_log(ctx, AV_LOG_DEBUG, "%f", d); | |
191 | break; | |
192 | case F0R_PARAM_COLOR: | |
193 | v = &col; | |
194 | s->get_param_value(s->instance, v, i); | |
195 | av_log(ctx, AV_LOG_DEBUG, "%f/%f/%f", col.r, col.g, col.b); | |
196 | break; | |
197 | case F0R_PARAM_POSITION: | |
198 | v = &pos; | |
199 | s->get_param_value(s->instance, v, i); | |
200 | av_log(ctx, AV_LOG_DEBUG, "%f/%f", pos.x, pos.y); | |
201 | break; | |
202 | default: /* F0R_PARAM_STRING */ | |
203 | v = s; | |
204 | s->get_param_value(s->instance, v, i); | |
205 | av_log(ctx, AV_LOG_DEBUG, "'%s'", s); | |
206 | break; | |
207 | } | |
208 | #endif | |
209 | av_log(ctx, AV_LOG_VERBOSE, ".\n"); | |
210 | } | |
211 | ||
212 | return 0; | |
213 | } | |
214 | ||
215 | static int load_path(AVFilterContext *ctx, void **handle_ptr, const char *prefix, const char *name) | |
216 | { | |
217 | char *path = av_asprintf("%s%s%s", prefix, name, SLIBSUF); | |
218 | if (!path) | |
219 | return AVERROR(ENOMEM); | |
220 | av_log(ctx, AV_LOG_DEBUG, "Looking for frei0r effect in '%s'.\n", path); | |
221 | *handle_ptr = dlopen(path, RTLD_NOW|RTLD_LOCAL); | |
222 | av_free(path); | |
223 | return 0; | |
224 | } | |
225 | ||
226 | static av_cold int frei0r_init(AVFilterContext *ctx, | |
227 | const char *dl_name, int type) | |
228 | { | |
229 | Frei0rContext *s = ctx->priv; | |
230 | f0r_init_f f0r_init; | |
231 | f0r_get_plugin_info_f f0r_get_plugin_info; | |
232 | f0r_plugin_info_t *pi; | |
233 | char *path; | |
234 | int ret = 0; | |
235 | int i; | |
236 | static const char* const frei0r_pathlist[] = { | |
237 | "/usr/local/lib/frei0r-1/", | |
238 | "/usr/lib/frei0r-1/", | |
239 | "/usr/local/lib64/frei0r-1/", | |
240 | "/usr/lib64/frei0r-1/" | |
241 | }; | |
242 | ||
243 | if (!dl_name) { | |
244 | av_log(ctx, AV_LOG_ERROR, "No filter name provided.\n"); | |
245 | return AVERROR(EINVAL); | |
246 | } | |
247 | ||
248 | /* see: http://frei0r.dyne.org/codedoc/html/group__pluglocations.html */ | |
249 | if ((path = av_strdup(getenv("FREI0R_PATH")))) { | |
250 | #ifdef _WIN32 | |
251 | const char *separator = ";"; | |
252 | #else | |
253 | const char *separator = ":"; | |
254 | #endif | |
255 | char *p, *ptr = NULL; | |
256 | for (p = path; p = av_strtok(p, separator, &ptr); p = NULL) { | |
257 | /* add additional trailing slash in case it is missing */ | |
258 | char *p1 = av_asprintf("%s/", p); | |
259 | if (!p1) { | |
260 | ret = AVERROR(ENOMEM); | |
261 | goto check_path_end; | |
262 | } | |
263 | ret = load_path(ctx, &s->dl_handle, p1, dl_name); | |
264 | av_free(p1); | |
265 | if (ret < 0) | |
266 | goto check_path_end; | |
267 | if (s->dl_handle) | |
268 | break; | |
269 | } | |
270 | ||
271 | check_path_end: | |
272 | av_free(path); | |
273 | if (ret < 0) | |
274 | return ret; | |
275 | } | |
276 | if (!s->dl_handle && (path = getenv("HOME"))) { | |
277 | char *prefix = av_asprintf("%s/.frei0r-1/lib/", path); | |
278 | if (!prefix) | |
279 | return AVERROR(ENOMEM); | |
280 | ret = load_path(ctx, &s->dl_handle, prefix, dl_name); | |
281 | av_free(prefix); | |
282 | if (ret < 0) | |
283 | return ret; | |
284 | } | |
285 | for (i = 0; !s->dl_handle && i < FF_ARRAY_ELEMS(frei0r_pathlist); i++) { | |
286 | ret = load_path(ctx, &s->dl_handle, frei0r_pathlist[i], dl_name); | |
287 | if (ret < 0) | |
288 | return ret; | |
289 | } | |
290 | if (!s->dl_handle) { | |
291 | av_log(ctx, AV_LOG_ERROR, "Could not find module '%s'.\n", dl_name); | |
292 | return AVERROR(EINVAL); | |
293 | } | |
294 | ||
295 | if (!(f0r_init = load_sym(ctx, "f0r_init" )) || | |
296 | !(f0r_get_plugin_info = load_sym(ctx, "f0r_get_plugin_info")) || | |
297 | !(s->get_param_info = load_sym(ctx, "f0r_get_param_info" )) || | |
298 | !(s->get_param_value = load_sym(ctx, "f0r_get_param_value")) || | |
299 | !(s->set_param_value = load_sym(ctx, "f0r_set_param_value")) || | |
300 | !(s->update = load_sym(ctx, "f0r_update" )) || | |
301 | !(s->construct = load_sym(ctx, "f0r_construct" )) || | |
302 | !(s->destruct = load_sym(ctx, "f0r_destruct" )) || | |
303 | !(s->deinit = load_sym(ctx, "f0r_deinit" ))) | |
304 | return AVERROR(EINVAL); | |
305 | ||
306 | if (f0r_init() < 0) { | |
307 | av_log(ctx, AV_LOG_ERROR, "Could not init the frei0r module.\n"); | |
308 | return AVERROR(EINVAL); | |
309 | } | |
310 | ||
311 | f0r_get_plugin_info(&s->plugin_info); | |
312 | pi = &s->plugin_info; | |
313 | if (pi->plugin_type != type) { | |
314 | av_log(ctx, AV_LOG_ERROR, | |
315 | "Invalid type '%s' for this plugin\n", | |
316 | pi->plugin_type == F0R_PLUGIN_TYPE_FILTER ? "filter" : | |
317 | pi->plugin_type == F0R_PLUGIN_TYPE_SOURCE ? "source" : | |
318 | pi->plugin_type == F0R_PLUGIN_TYPE_MIXER2 ? "mixer2" : | |
319 | pi->plugin_type == F0R_PLUGIN_TYPE_MIXER3 ? "mixer3" : "unknown"); | |
320 | return AVERROR(EINVAL); | |
321 | } | |
322 | ||
323 | av_log(ctx, AV_LOG_VERBOSE, | |
324 | "name:%s author:'%s' explanation:'%s' color_model:%s " | |
325 | "frei0r_version:%d version:%d.%d num_params:%d\n", | |
326 | pi->name, pi->author, pi->explanation, | |
327 | pi->color_model == F0R_COLOR_MODEL_BGRA8888 ? "bgra8888" : | |
328 | pi->color_model == F0R_COLOR_MODEL_RGBA8888 ? "rgba8888" : | |
329 | pi->color_model == F0R_COLOR_MODEL_PACKED32 ? "packed32" : "unknown", | |
330 | pi->frei0r_version, pi->major_version, pi->minor_version, pi->num_params); | |
331 | ||
332 | return 0; | |
333 | } | |
334 | ||
335 | static av_cold int filter_init(AVFilterContext *ctx) | |
336 | { | |
337 | Frei0rContext *s = ctx->priv; | |
338 | ||
339 | return frei0r_init(ctx, s->dl_name, F0R_PLUGIN_TYPE_FILTER); | |
340 | } | |
341 | ||
342 | static av_cold void uninit(AVFilterContext *ctx) | |
343 | { | |
344 | Frei0rContext *s = ctx->priv; | |
345 | ||
346 | if (s->destruct && s->instance) | |
347 | s->destruct(s->instance); | |
348 | if (s->deinit) | |
349 | s->deinit(); | |
350 | if (s->dl_handle) | |
351 | dlclose(s->dl_handle); | |
352 | } | |
353 | ||
354 | static int config_input_props(AVFilterLink *inlink) | |
355 | { | |
356 | AVFilterContext *ctx = inlink->dst; | |
357 | Frei0rContext *s = ctx->priv; | |
358 | ||
359 | if (s->destruct && s->instance) | |
360 | s->destruct(s->instance); | |
361 | if (!(s->instance = s->construct(inlink->w, inlink->h))) { | |
362 | av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance.\n"); | |
363 | return AVERROR(EINVAL); | |
364 | } | |
365 | ||
366 | return set_params(ctx, s->params); | |
367 | } | |
368 | ||
369 | static int query_formats(AVFilterContext *ctx) | |
370 | { | |
371 | Frei0rContext *s = ctx->priv; | |
372 | AVFilterFormats *formats = NULL; | |
373 | ||
374 | if (s->plugin_info.color_model == F0R_COLOR_MODEL_BGRA8888) { | |
375 | ff_add_format(&formats, AV_PIX_FMT_BGRA); | |
376 | } else if (s->plugin_info.color_model == F0R_COLOR_MODEL_RGBA8888) { | |
377 | ff_add_format(&formats, AV_PIX_FMT_RGBA); | |
378 | } else { /* F0R_COLOR_MODEL_PACKED32 */ | |
379 | static const enum AVPixelFormat pix_fmts[] = { | |
380 | AV_PIX_FMT_BGRA, AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, AV_PIX_FMT_ARGB, AV_PIX_FMT_NONE | |
381 | }; | |
382 | formats = ff_make_format_list(pix_fmts); | |
383 | } | |
384 | ||
385 | if (!formats) | |
386 | return AVERROR(ENOMEM); | |
387 | ||
388 | ff_set_common_formats(ctx, formats); | |
389 | return 0; | |
390 | } | |
391 | ||
392 | static int filter_frame(AVFilterLink *inlink, AVFrame *in) | |
393 | { | |
394 | Frei0rContext *s = inlink->dst->priv; | |
395 | AVFilterLink *outlink = inlink->dst->outputs[0]; | |
396 | AVFrame *out; | |
397 | ||
398 | out = ff_get_video_buffer(outlink, outlink->w, outlink->h); | |
399 | if (!out) { | |
400 | av_frame_free(&in); | |
401 | return AVERROR(ENOMEM); | |
402 | } | |
403 | av_frame_copy_props(out, in); | |
404 | ||
405 | s->update(s->instance, in->pts * av_q2d(inlink->time_base) * 1000, | |
406 | (const uint32_t *)in->data[0], | |
407 | (uint32_t *)out->data[0]); | |
408 | ||
409 | av_frame_free(&in); | |
410 | ||
411 | return ff_filter_frame(outlink, out); | |
412 | } | |
413 | ||
414 | #define OFFSET(x) offsetof(Frei0rContext, x) | |
415 | #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | |
416 | static const AVOption frei0r_options[] = { | |
417 | { "filter_name", NULL, OFFSET(dl_name), AV_OPT_TYPE_STRING, .flags = FLAGS }, | |
418 | { "filter_params", NULL, OFFSET(params), AV_OPT_TYPE_STRING, .flags = FLAGS }, | |
419 | { NULL } | |
420 | }; | |
421 | ||
422 | AVFILTER_DEFINE_CLASS(frei0r); | |
423 | ||
424 | static const AVFilterPad avfilter_vf_frei0r_inputs[] = { | |
425 | { | |
426 | .name = "default", | |
427 | .type = AVMEDIA_TYPE_VIDEO, | |
428 | .config_props = config_input_props, | |
429 | .filter_frame = filter_frame, | |
430 | }, | |
431 | { NULL } | |
432 | }; | |
433 | ||
434 | static const AVFilterPad avfilter_vf_frei0r_outputs[] = { | |
435 | { | |
436 | .name = "default", | |
437 | .type = AVMEDIA_TYPE_VIDEO, | |
438 | }, | |
439 | { NULL } | |
440 | }; | |
441 | ||
442 | AVFilter ff_vf_frei0r = { | |
443 | .name = "frei0r", | |
444 | .description = NULL_IF_CONFIG_SMALL("Apply a frei0r effect."), | |
445 | .query_formats = query_formats, | |
446 | .init = filter_init, | |
447 | .uninit = uninit, | |
448 | .priv_size = sizeof(Frei0rContext), | |
449 | .priv_class = &frei0r_class, | |
450 | .inputs = avfilter_vf_frei0r_inputs, | |
451 | .outputs = avfilter_vf_frei0r_outputs, | |
452 | }; | |
453 | ||
454 | static av_cold int source_init(AVFilterContext *ctx) | |
455 | { | |
456 | Frei0rContext *s = ctx->priv; | |
457 | ||
458 | s->time_base.num = s->framerate.den; | |
459 | s->time_base.den = s->framerate.num; | |
460 | ||
461 | return frei0r_init(ctx, s->dl_name, F0R_PLUGIN_TYPE_SOURCE); | |
462 | } | |
463 | ||
464 | static int source_config_props(AVFilterLink *outlink) | |
465 | { | |
466 | AVFilterContext *ctx = outlink->src; | |
467 | Frei0rContext *s = ctx->priv; | |
468 | ||
469 | if (av_image_check_size(s->w, s->h, 0, ctx) < 0) | |
470 | return AVERROR(EINVAL); | |
471 | outlink->w = s->w; | |
472 | outlink->h = s->h; | |
473 | outlink->time_base = s->time_base; | |
474 | outlink->sample_aspect_ratio = (AVRational){1,1}; | |
475 | ||
476 | if (s->destruct && s->instance) | |
477 | s->destruct(s->instance); | |
478 | if (!(s->instance = s->construct(outlink->w, outlink->h))) { | |
479 | av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance.\n"); | |
480 | return AVERROR(EINVAL); | |
481 | } | |
482 | if (!s->params) { | |
483 | av_log(ctx, AV_LOG_ERROR, "frei0r filter parameters not set.\n"); | |
484 | return AVERROR(EINVAL); | |
485 | } | |
486 | ||
487 | return set_params(ctx, s->params); | |
488 | } | |
489 | ||
490 | static int source_request_frame(AVFilterLink *outlink) | |
491 | { | |
492 | Frei0rContext *s = outlink->src->priv; | |
493 | AVFrame *frame = ff_get_video_buffer(outlink, outlink->w, outlink->h); | |
494 | ||
495 | if (!frame) | |
496 | return AVERROR(ENOMEM); | |
497 | ||
498 | frame->sample_aspect_ratio = (AVRational) {1, 1}; | |
499 | frame->pts = s->pts++; | |
500 | ||
501 | s->update(s->instance, av_rescale_q(frame->pts, s->time_base, (AVRational){1,1000}), | |
502 | NULL, (uint32_t *)frame->data[0]); | |
503 | ||
504 | return ff_filter_frame(outlink, frame); | |
505 | } | |
506 | ||
507 | static const AVOption frei0r_src_options[] = { | |
508 | { "size", "Dimensions of the generated video.", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, { .str = "320x240" }, .flags = FLAGS }, | |
509 | { "framerate", NULL, OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, .flags = FLAGS }, | |
510 | { "filter_name", NULL, OFFSET(dl_name), AV_OPT_TYPE_STRING, .flags = FLAGS }, | |
511 | { "filter_params", NULL, OFFSET(params), AV_OPT_TYPE_STRING, .flags = FLAGS }, | |
512 | { NULL }, | |
513 | }; | |
514 | ||
515 | AVFILTER_DEFINE_CLASS(frei0r_src); | |
516 | ||
517 | static const AVFilterPad avfilter_vsrc_frei0r_src_outputs[] = { | |
518 | { | |
519 | .name = "default", | |
520 | .type = AVMEDIA_TYPE_VIDEO, | |
521 | .request_frame = source_request_frame, | |
522 | .config_props = source_config_props | |
523 | }, | |
524 | { NULL } | |
525 | }; | |
526 | ||
527 | AVFilter ff_vsrc_frei0r_src = { | |
528 | .name = "frei0r_src", | |
529 | .description = NULL_IF_CONFIG_SMALL("Generate a frei0r source."), | |
530 | .priv_size = sizeof(Frei0rContext), | |
531 | .priv_class = &frei0r_src_class, | |
532 | .init = source_init, | |
533 | .uninit = uninit, | |
534 | .query_formats = query_formats, | |
535 | .inputs = NULL, | |
536 | .outputs = avfilter_vsrc_frei0r_src_outputs, | |
537 | }; |