| 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 | }; |