2 * Copyright (c) 2010 Stefano Sabatini
3 * This file is part of Libav.
5 * Libav 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.
10 * Libav 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.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with Libav; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "libavutil/avstring.h"
30 #include "libavutil/imgutils.h"
31 #include "libavutil/mathematics.h"
32 #include "libavutil/parseutils.h"
35 typedef f0r_instance_t (*f0r_construct_f)(unsigned int width, unsigned int height);
36 typedef void (*f0r_destruct_f)(f0r_instance_t instance);
37 typedef void (*f0r_deinit_f)(void);
38 typedef int (*f0r_init_f)(void);
39 typedef void (*f0r_get_plugin_info_f)(f0r_plugin_info_t *info);
40 typedef void (*f0r_get_param_info_f)(f0r_param_info_t *info, int param_index);
41 typedef void (*f0r_update_f)(f0r_instance_t instance, double time, const uint32_t *inframe, uint32_t *outframe);
42 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);
43 typedef void (*f0r_set_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index);
44 typedef void (*f0r_get_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index);
46 typedef struct Frei0rContext {
48 void *dl_handle; /* dynamic library handle */
49 f0r_instance_t instance;
50 f0r_plugin_info_t plugin_info;
52 f0r_get_param_info_f get_param_info;
53 f0r_get_param_value_f get_param_value;
54 f0r_set_param_value_f set_param_value;
55 f0r_construct_f construct;
56 f0r_destruct_f destruct;
60 /* only used by the source */
66 static void *load_sym(AVFilterContext *ctx, const char *sym_name)
68 Frei0rContext *frei0r = ctx->priv;
69 void *sym = dlsym(frei0r->dl_handle, sym_name);
71 av_log(ctx, AV_LOG_ERROR, "Could not find symbol '%s' in loaded module\n", sym_name);
75 static int set_param(AVFilterContext *ctx, f0r_param_info_t info, int index, char *param)
77 Frei0rContext *frei0r = ctx->priv;
80 f0r_param_color_t col;
81 f0r_param_position_t pos;
88 if (!strcmp(param, "y")) val.d = 1.0;
89 else if (!strcmp(param, "n")) val.d = 0.0;
93 case F0R_PARAM_DOUBLE:
94 val.d = strtod(param, &tail);
95 if (*tail || val.d == HUGE_VAL)
100 if (sscanf(param, "%f/%f/%f", &val.col.r, &val.col.g, &val.col.b) != 3) {
101 if (av_parse_color(rgba, param, -1, ctx) < 0)
103 val.col.r = rgba[0] / 255.0;
104 val.col.g = rgba[1] / 255.0;
105 val.col.b = rgba[2] / 255.0;
109 case F0R_PARAM_POSITION:
110 if (sscanf(param, "%lf/%lf", &val.pos.x, &val.pos.y) != 2)
115 frei0r->set_param_value(frei0r->instance, &val, index);
119 av_log(ctx, AV_LOG_ERROR, "Invalid value '%s' for parameter '%s'\n",
121 return AVERROR(EINVAL);
124 static int set_params(AVFilterContext *ctx, const char *params)
126 Frei0rContext *frei0r = ctx->priv;
129 for (i = 0; i < frei0r->plugin_info.num_params; i++) {
130 f0r_param_info_t info;
134 frei0r->get_param_info(&info, i);
137 if (!(param = av_get_token(¶ms, ":")))
138 return AVERROR(ENOMEM);
139 params++; /* skip ':' */
140 ret = set_param(ctx, info, i, param);
146 av_log(ctx, AV_LOG_INFO,
147 "idx:%d name:'%s' type:%s explanation:'%s' ",
149 info.type == F0R_PARAM_BOOL ? "bool" :
150 info.type == F0R_PARAM_DOUBLE ? "double" :
151 info.type == F0R_PARAM_COLOR ? "color" :
152 info.type == F0R_PARAM_POSITION ? "position" :
153 info.type == F0R_PARAM_STRING ? "string" : "unknown",
157 av_log(ctx, AV_LOG_INFO, "value:");
162 f0r_param_color_t col;
163 f0r_param_position_t pos;
167 frei0r->get_param_value(frei0r->instance, v, i);
168 av_log(ctx, AV_LOG_INFO, "%s", d >= 0.5 && d <= 1.0 ? "y" : "n");
170 case F0R_PARAM_DOUBLE:
172 frei0r->get_param_value(frei0r->instance, v, i);
173 av_log(ctx, AV_LOG_INFO, "%f", d);
175 case F0R_PARAM_COLOR:
177 frei0r->get_param_value(frei0r->instance, v, i);
178 av_log(ctx, AV_LOG_INFO, "%f/%f/%f", col.r, col.g, col.b);
180 case F0R_PARAM_POSITION:
182 frei0r->get_param_value(frei0r->instance, v, i);
183 av_log(ctx, AV_LOG_INFO, "%lf/%lf", pos.x, pos.y);
185 default: /* F0R_PARAM_STRING */
187 frei0r->get_param_value(frei0r->instance, v, i);
188 av_log(ctx, AV_LOG_INFO, "'%s'\n", s);
192 av_log(ctx, AV_LOG_INFO, "\n");
198 static void *load_path(AVFilterContext *ctx, const char *prefix, const char *name)
202 snprintf(path, sizeof(path), "%s%s%s", prefix, name, SLIBSUF);
203 av_log(ctx, AV_LOG_DEBUG, "Looking for frei0r effect in '%s'\n", path);
204 return dlopen(path, RTLD_NOW|RTLD_LOCAL);
207 static av_cold int frei0r_init(AVFilterContext *ctx,
208 const char *dl_name, int type)
210 Frei0rContext *frei0r = ctx->priv;
212 f0r_get_plugin_info_f f0r_get_plugin_info;
213 f0r_plugin_info_t *pi;
216 /* see: http://piksel.org/frei0r/1.2/spec/1.2/spec/group__pluglocations.html */
217 if ((path = av_strdup(getenv("FREI0R_PATH")))) {
218 char *p, *ptr = NULL;
219 for (p = path; p = strtok_r(p, ":", &ptr); p = NULL)
220 if (frei0r->dl_handle = load_path(ctx, p, dl_name))
224 if (!frei0r->dl_handle && (path = getenv("HOME"))) {
226 snprintf(prefix, sizeof(prefix), "%s/.frei0r-1/lib/", path);
227 frei0r->dl_handle = load_path(ctx, prefix, dl_name);
229 if (!frei0r->dl_handle)
230 frei0r->dl_handle = load_path(ctx, "/usr/local/lib/frei0r-1/", dl_name);
231 if (!frei0r->dl_handle)
232 frei0r->dl_handle = load_path(ctx, "/usr/lib/frei0r-1/", dl_name);
233 if (!frei0r->dl_handle) {
234 av_log(ctx, AV_LOG_ERROR, "Could not find module '%s'\n", dl_name);
235 return AVERROR(EINVAL);
238 if (!(f0r_init = load_sym(ctx, "f0r_init" )) ||
239 !(f0r_get_plugin_info = load_sym(ctx, "f0r_get_plugin_info")) ||
240 !(frei0r->get_param_info = load_sym(ctx, "f0r_get_param_info" )) ||
241 !(frei0r->get_param_value = load_sym(ctx, "f0r_get_param_value")) ||
242 !(frei0r->set_param_value = load_sym(ctx, "f0r_set_param_value")) ||
243 !(frei0r->update = load_sym(ctx, "f0r_update" )) ||
244 !(frei0r->construct = load_sym(ctx, "f0r_construct" )) ||
245 !(frei0r->destruct = load_sym(ctx, "f0r_destruct" )) ||
246 !(frei0r->deinit = load_sym(ctx, "f0r_deinit" )))
247 return AVERROR(EINVAL);
249 if (f0r_init() < 0) {
250 av_log(ctx, AV_LOG_ERROR, "Could not init the frei0r module");
251 return AVERROR(EINVAL);
254 f0r_get_plugin_info(&frei0r->plugin_info);
255 pi = &frei0r->plugin_info;
256 if (pi->plugin_type != type) {
257 av_log(ctx, AV_LOG_ERROR,
258 "Invalid type '%s' for the plugin\n",
259 pi->plugin_type == F0R_PLUGIN_TYPE_FILTER ? "filter" :
260 pi->plugin_type == F0R_PLUGIN_TYPE_SOURCE ? "source" :
261 pi->plugin_type == F0R_PLUGIN_TYPE_MIXER2 ? "mixer2" :
262 pi->plugin_type == F0R_PLUGIN_TYPE_MIXER3 ? "mixer3" : "unknown");
263 return AVERROR(EINVAL);
266 av_log(ctx, AV_LOG_INFO,
267 "name:%s author:'%s' explanation:'%s' color_model:%s "
268 "frei0r_version:%d version:%d.%d num_params:%d\n",
269 pi->name, pi->author, pi->explanation,
270 pi->color_model == F0R_COLOR_MODEL_BGRA8888 ? "bgra8888" :
271 pi->color_model == F0R_COLOR_MODEL_RGBA8888 ? "rgba8888" :
272 pi->color_model == F0R_COLOR_MODEL_PACKED32 ? "packed32" : "unknown",
273 pi->frei0r_version, pi->major_version, pi->minor_version, pi->num_params);
278 static av_cold int filter_init(AVFilterContext *ctx, const char *args, void *opaque)
280 Frei0rContext *frei0r = ctx->priv;
281 char dl_name[1024], c;
285 sscanf(args, "%1023[^:=]%c%255c", dl_name, &c, frei0r->params);
287 return frei0r_init(ctx, dl_name, F0R_PLUGIN_TYPE_FILTER);
290 static av_cold void uninit(AVFilterContext *ctx)
292 Frei0rContext *frei0r = ctx->priv;
294 if (frei0r->destruct && frei0r->instance)
295 frei0r->destruct(frei0r->instance);
298 if (frei0r->dl_handle)
299 dlclose(frei0r->dl_handle);
301 memset(frei0r, 0, sizeof(*frei0r));
304 static int config_input_props(AVFilterLink *inlink)
306 AVFilterContext *ctx = inlink->dst;
307 Frei0rContext *frei0r = ctx->priv;
309 if (!(frei0r->instance = frei0r->construct(inlink->w, inlink->h))) {
310 av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance");
311 return AVERROR(EINVAL);
314 return set_params(ctx, frei0r->params);
317 static int query_formats(AVFilterContext *ctx)
319 Frei0rContext *frei0r = ctx->priv;
320 AVFilterFormats *formats = NULL;
322 if (frei0r->plugin_info.color_model == F0R_COLOR_MODEL_BGRA8888) {
323 avfilter_add_format(&formats, PIX_FMT_BGRA);
324 } else if (frei0r->plugin_info.color_model == F0R_COLOR_MODEL_RGBA8888) {
325 avfilter_add_format(&formats, PIX_FMT_RGBA);
326 } else { /* F0R_COLOR_MODEL_PACKED32 */
327 static const enum PixelFormat pix_fmts[] = {
328 PIX_FMT_BGRA, PIX_FMT_ARGB, PIX_FMT_ABGR, PIX_FMT_ARGB, PIX_FMT_NONE
330 formats = avfilter_make_format_list(pix_fmts);
334 return AVERROR(ENOMEM);
336 avfilter_set_common_formats(ctx, formats);
340 static void null_draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir) { }
342 static void end_frame(AVFilterLink *inlink)
344 Frei0rContext *frei0r = inlink->dst->priv;
345 AVFilterLink *outlink = inlink->dst->outputs[0];
346 AVFilterBufferRef *inpicref = inlink->cur_buf;
347 AVFilterBufferRef *outpicref = outlink->out_buf;
349 frei0r->update(frei0r->instance, inpicref->pts * av_q2d(inlink->time_base) * 1000,
350 (const uint32_t *)inpicref->data[0],
351 (uint32_t *)outpicref->data[0]);
352 avfilter_unref_buffer(inpicref);
353 avfilter_draw_slice(outlink, 0, outlink->h, 1);
354 avfilter_end_frame(outlink);
355 avfilter_unref_buffer(outpicref);
358 AVFilter avfilter_vf_frei0r = {
360 .description = NULL_IF_CONFIG_SMALL("Apply a frei0r effect."),
362 .query_formats = query_formats,
366 .priv_size = sizeof(Frei0rContext),
368 .inputs = (AVFilterPad[]) {{ .name = "default",
369 .type = AVMEDIA_TYPE_VIDEO,
370 .draw_slice = null_draw_slice,
371 .config_props = config_input_props,
372 .end_frame = end_frame,
373 .min_perms = AV_PERM_READ },
376 .outputs = (AVFilterPad[]) {{ .name = "default",
377 .type = AVMEDIA_TYPE_VIDEO, },
381 static av_cold int source_init(AVFilterContext *ctx, const char *args, void *opaque)
383 Frei0rContext *frei0r = ctx->priv;
384 char dl_name[1024], c;
385 char frame_size[128] = "";
386 char frame_rate[128] = "";
387 AVRational frame_rate_q;
389 memset(frei0r->params, 0, sizeof(frei0r->params));
392 sscanf(args, "%127[^:]:%127[^:]:%1023[^:=]%c%255c",
393 frame_size, frame_rate, dl_name, &c, frei0r->params);
395 if (av_parse_video_size(&frei0r->w, &frei0r->h, frame_size) < 0) {
396 av_log(ctx, AV_LOG_ERROR, "Invalid frame size: '%s'\n", frame_size);
397 return AVERROR(EINVAL);
400 if (av_parse_video_rate(&frame_rate_q, frame_rate) < 0 ||
401 frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
402 av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", frame_rate);
403 return AVERROR(EINVAL);
405 frei0r->time_base.num = frame_rate_q.den;
406 frei0r->time_base.den = frame_rate_q.num;
408 return frei0r_init(ctx, dl_name, F0R_PLUGIN_TYPE_SOURCE);
411 static int source_config_props(AVFilterLink *outlink)
413 AVFilterContext *ctx = outlink->src;
414 Frei0rContext *frei0r = ctx->priv;
416 if (av_image_check_size(frei0r->w, frei0r->h, 0, ctx) < 0)
417 return AVERROR(EINVAL);
418 outlink->w = frei0r->w;
419 outlink->h = frei0r->h;
420 outlink->time_base = frei0r->time_base;
422 if (!(frei0r->instance = frei0r->construct(outlink->w, outlink->h))) {
423 av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance");
424 return AVERROR(EINVAL);
427 return set_params(ctx, frei0r->params);
430 static int source_request_frame(AVFilterLink *outlink)
432 Frei0rContext *frei0r = outlink->src->priv;
433 AVFilterBufferRef *picref = avfilter_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
434 picref->video->pixel_aspect = (AVRational) {1, 1};
435 picref->pts = frei0r->pts++;
438 avfilter_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
439 frei0r->update(frei0r->instance, av_rescale_q(picref->pts, frei0r->time_base, (AVRational){1,1000}),
440 NULL, (uint32_t *)picref->data[0]);
441 avfilter_draw_slice(outlink, 0, outlink->h, 1);
442 avfilter_end_frame(outlink);
443 avfilter_unref_buffer(picref);
448 AVFilter avfilter_vsrc_frei0r_src = {
449 .name = "frei0r_src",
450 .description = NULL_IF_CONFIG_SMALL("Generate a frei0r source."),
452 .priv_size = sizeof(Frei0rContext),
456 .query_formats = query_formats,
458 .inputs = (AVFilterPad[]) {{ .name = NULL}},
460 .outputs = (AVFilterPad[]) {{ .name = "default",
461 .type = AVMEDIA_TYPE_VIDEO,
462 .request_frame = source_request_frame,
463 .config_props = source_config_props },