Libav
vf_frei0r.c
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1 /*
2  * Copyright (c) 2010 Stefano Sabatini
3  * This file is part of Libav.
4  *
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.
9  *
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.
14  *
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
18  */
19 
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/imgutils.h"
33 #include "libavutil/internal.h"
34 #include "libavutil/mathematics.h"
35 #include "libavutil/mem.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/parseutils.h"
38 #include "avfilter.h"
39 #include "formats.h"
40 #include "internal.h"
41 #include "video.h"
42 
43 typedef f0r_instance_t (*f0r_construct_f)(unsigned int width, unsigned int height);
44 typedef void (*f0r_destruct_f)(f0r_instance_t instance);
45 typedef void (*f0r_deinit_f)(void);
46 typedef int (*f0r_init_f)(void);
47 typedef void (*f0r_get_plugin_info_f)(f0r_plugin_info_t *info);
48 typedef void (*f0r_get_param_info_f)(f0r_param_info_t *info, int param_index);
49 typedef void (*f0r_update_f)(f0r_instance_t instance, double time, const uint32_t *inframe, uint32_t *outframe);
50 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);
51 typedef void (*f0r_set_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index);
52 typedef void (*f0r_get_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index);
53 
54 typedef struct Frei0rContext {
55  const AVClass *class;
57  void *dl_handle; /* dynamic library handle */
58  f0r_instance_t instance;
59  f0r_plugin_info_t plugin_info;
60 
67 
68  char *dl_name;
69  char *params;
70  char *size;
71  char *framerate;
72 
73  /* only used by the source */
74  int w, h;
76  uint64_t pts;
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  for (i = 0; i < s->plugin_info.num_params; i++) {
143  f0r_param_info_t info;
144  char *param;
145  int ret;
146 
147  s->get_param_info(&info, i);
148 
149  if (*params) {
150  if (!(param = av_get_token(&params, "|")))
151  return AVERROR(ENOMEM);
152  if (*params)
153  params++; /* skip ':' */
154  ret = set_param(ctx, info, i, param);
155  av_free(param);
156  if (ret < 0)
157  return ret;
158  }
159  }
160 
161  return 0;
162 }
163 
164 static void *load_path(AVFilterContext *ctx, const char *prefix, const char *name)
165 {
166  char path[1024];
167 
168  snprintf(path, sizeof(path), "%s%s%s", prefix, name, SLIBSUF);
169  av_log(ctx, AV_LOG_DEBUG, "Looking for frei0r effect in '%s'.\n", path);
170  return dlopen(path, RTLD_NOW|RTLD_LOCAL);
171 }
172 
174  const char *dl_name, int type)
175 {
176  Frei0rContext *s = ctx->priv;
177  f0r_init_f f0r_init;
178  f0r_get_plugin_info_f f0r_get_plugin_info;
179  f0r_plugin_info_t *pi;
180  char *path;
181 
182  if (!dl_name) {
183  av_log(ctx, AV_LOG_ERROR, "No filter name provided.\n");
184  return AVERROR(EINVAL);
185  }
186 
187  /* see: http://piksel.org/frei0r/1.2/spec/1.2/spec/group__pluglocations.html */
188  if (path = getenv("FREI0R_PATH")) {
189  while(*path) {
190  char *ptr = av_get_token((const char **)&path, ":");
191  if (!ptr)
192  return AVERROR(ENOMEM);
193  s->dl_handle = load_path(ctx, ptr, dl_name);
194  av_freep(&ptr);
195  if (s->dl_handle)
196  break; /* found */
197  if (*path)
198  path++; /* skip ':' */
199  }
200  }
201  if (!s->dl_handle && (path = getenv("HOME"))) {
202  char prefix[1024];
203  snprintf(prefix, sizeof(prefix), "%s/.frei0r-1/lib/", path);
204  s->dl_handle = load_path(ctx, prefix, dl_name);
205  }
206  if (!s->dl_handle)
207  s->dl_handle = load_path(ctx, "/usr/local/lib/frei0r-1/", dl_name);
208  if (!s->dl_handle)
209  s->dl_handle = load_path(ctx, "/usr/lib/frei0r-1/", dl_name);
210  if (!s->dl_handle) {
211  av_log(ctx, AV_LOG_ERROR, "Could not find module '%s'.\n", dl_name);
212  return AVERROR(EINVAL);
213  }
214 
215  if (!(f0r_init = load_sym(ctx, "f0r_init" )) ||
216  !(f0r_get_plugin_info = load_sym(ctx, "f0r_get_plugin_info")) ||
217  !(s->get_param_info = load_sym(ctx, "f0r_get_param_info" )) ||
218  !(s->get_param_value = load_sym(ctx, "f0r_get_param_value")) ||
219  !(s->set_param_value = load_sym(ctx, "f0r_set_param_value")) ||
220  !(s->update = load_sym(ctx, "f0r_update" )) ||
221  !(s->construct = load_sym(ctx, "f0r_construct" )) ||
222  !(s->destruct = load_sym(ctx, "f0r_destruct" )) ||
223  !(s->deinit = load_sym(ctx, "f0r_deinit" )))
224  return AVERROR(EINVAL);
225 
226  if (f0r_init() < 0) {
227  av_log(ctx, AV_LOG_ERROR, "Could not init the frei0r module.\n");
228  return AVERROR(EINVAL);
229  }
230 
231  f0r_get_plugin_info(&s->plugin_info);
232  pi = &s->plugin_info;
233  if (pi->plugin_type != type) {
234  av_log(ctx, AV_LOG_ERROR,
235  "Invalid type '%s' for this plugin\n",
236  pi->plugin_type == F0R_PLUGIN_TYPE_FILTER ? "filter" :
237  pi->plugin_type == F0R_PLUGIN_TYPE_SOURCE ? "source" :
238  pi->plugin_type == F0R_PLUGIN_TYPE_MIXER2 ? "mixer2" :
239  pi->plugin_type == F0R_PLUGIN_TYPE_MIXER3 ? "mixer3" : "unknown");
240  return AVERROR(EINVAL);
241  }
242 
243  av_log(ctx, AV_LOG_VERBOSE,
244  "name:%s author:'%s' explanation:'%s' color_model:%s "
245  "frei0r_version:%d version:%d.%d num_params:%d\n",
246  pi->name, pi->author, pi->explanation,
247  pi->color_model == F0R_COLOR_MODEL_BGRA8888 ? "bgra8888" :
248  pi->color_model == F0R_COLOR_MODEL_RGBA8888 ? "rgba8888" :
249  pi->color_model == F0R_COLOR_MODEL_PACKED32 ? "packed32" : "unknown",
250  pi->frei0r_version, pi->major_version, pi->minor_version, pi->num_params);
251 
252  return 0;
253 }
254 
256 {
257  Frei0rContext *s = ctx->priv;
258 
259  return frei0r_init(ctx, s->dl_name, F0R_PLUGIN_TYPE_FILTER);
260 }
261 
263 {
264  Frei0rContext *s = ctx->priv;
265 
266  if (s->destruct && s->instance)
267  s->destruct(s->instance);
268  if (s->deinit)
269  s->deinit();
270  if (s->dl_handle)
271  dlclose(s->dl_handle);
272 }
273 
274 static int config_input_props(AVFilterLink *inlink)
275 {
276  AVFilterContext *ctx = inlink->dst;
277  Frei0rContext *s = ctx->priv;
278 
279  if (s->destruct && s->instance)
280  s->destruct(s->instance);
281  if (!(s->instance = s->construct(inlink->w, inlink->h))) {
282  av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance.\n");
283  return AVERROR(EINVAL);
284  }
285 
286  return set_params(ctx, s->params);
287 }
288 
290 {
291  Frei0rContext *s = ctx->priv;
293 
294  if (s->plugin_info.color_model == F0R_COLOR_MODEL_BGRA8888) {
295  ff_add_format(&formats, AV_PIX_FMT_BGRA);
296  } else if (s->plugin_info.color_model == F0R_COLOR_MODEL_RGBA8888) {
297  ff_add_format(&formats, AV_PIX_FMT_RGBA);
298  } else { /* F0R_COLOR_MODEL_PACKED32 */
299  static const enum AVPixelFormat pix_fmts[] = {
301  };
302  formats = ff_make_format_list(pix_fmts);
303  }
304 
305  if (!formats)
306  return AVERROR(ENOMEM);
307 
308  ff_set_common_formats(ctx, formats);
309  return 0;
310 }
311 
312 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
313 {
314  Frei0rContext *s = inlink->dst->priv;
315  AVFilterLink *outlink = inlink->dst->outputs[0];
316  AVFrame *out;
317 
318  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
319  if (!out) {
320  av_frame_free(&in);
321  return AVERROR(ENOMEM);
322  }
323  av_frame_copy_props(out, in);
324 
325  s->update(s->instance, in->pts * av_q2d(inlink->time_base) * 1000,
326  (const uint32_t *)in->data[0],
327  (uint32_t *)out->data[0]);
328 
329  av_frame_free(&in);
330 
331  return ff_filter_frame(outlink, out);
332 }
333 
334 #define OFFSET(x) offsetof(Frei0rContext, x)
335 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM
336 static const AVOption filter_options[] = {
337  { "filter_name", NULL, OFFSET(dl_name), AV_OPT_TYPE_STRING, .flags = FLAGS },
338  { "filter_params", NULL, OFFSET(params), AV_OPT_TYPE_STRING, .flags = FLAGS },
339  { NULL },
340 };
341 
342 static const AVClass filter_class = {
343  .class_name = "frei0r",
344  .item_name = av_default_item_name,
345  .option = filter_options,
346  .version = LIBAVUTIL_VERSION_INT,
347 };
348 
350  {
351  .name = "default",
352  .type = AVMEDIA_TYPE_VIDEO,
353  .config_props = config_input_props,
354  .filter_frame = filter_frame,
355  },
356  { NULL }
357 };
358 
360  {
361  .name = "default",
362  .type = AVMEDIA_TYPE_VIDEO,
363  },
364  { NULL }
365 };
366 
368  .name = "frei0r",
369  .description = NULL_IF_CONFIG_SMALL("Apply a frei0r effect."),
370 
371  .query_formats = query_formats,
372  .init = filter_init,
373  .uninit = uninit,
374 
375  .priv_size = sizeof(Frei0rContext),
376  .priv_class = &filter_class,
377 
378  .inputs = avfilter_vf_frei0r_inputs,
379 
380  .outputs = avfilter_vf_frei0r_outputs,
381 };
382 
384 {
385  Frei0rContext *s = ctx->priv;
386  AVRational frame_rate_q;
387 
388  if (av_parse_video_size(&s->w, &s->h, s->size) < 0) {
389  av_log(ctx, AV_LOG_ERROR, "Invalid frame size: '%s'.\n", s->size);
390  return AVERROR(EINVAL);
391  }
392 
393  if (av_parse_video_rate(&frame_rate_q, s->framerate) < 0 ||
394  frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
395  av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'.\n", s->framerate);
396  return AVERROR(EINVAL);
397  }
398  s->time_base.num = frame_rate_q.den;
399  s->time_base.den = frame_rate_q.num;
400 
401  return frei0r_init(ctx, s->dl_name, F0R_PLUGIN_TYPE_SOURCE);
402 }
403 
404 static int source_config_props(AVFilterLink *outlink)
405 {
406  AVFilterContext *ctx = outlink->src;
407  Frei0rContext *s = ctx->priv;
408 
409  if (av_image_check_size(s->w, s->h, 0, ctx) < 0)
410  return AVERROR(EINVAL);
411  outlink->w = s->w;
412  outlink->h = s->h;
413  outlink->time_base = s->time_base;
414  outlink->frame_rate = av_inv_q(s->time_base);
415 
416  if (s->destruct && s->instance)
417  s->destruct(s->instance);
418  if (!(s->instance = s->construct(outlink->w, outlink->h))) {
419  av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance.\n");
420  return AVERROR(EINVAL);
421  }
422  if (!s->params) {
423  av_log(ctx, AV_LOG_ERROR, "frei0r filter parameters not set.\n");
424  return AVERROR(EINVAL);
425  }
426 
427  return set_params(ctx, s->params);
428 }
429 
430 static int source_request_frame(AVFilterLink *outlink)
431 {
432  Frei0rContext *s = outlink->src->priv;
433  AVFrame *frame = ff_get_video_buffer(outlink, outlink->w, outlink->h);
434 
435  if (!frame)
436  return AVERROR(ENOMEM);
437 
438  frame->sample_aspect_ratio = (AVRational) {1, 1};
439  frame->pts = s->pts++;
440 
441  s->update(s->instance, av_rescale_q(frame->pts, s->time_base, (AVRational){1,1000}),
442  NULL, (uint32_t *)frame->data[0]);
443 
444  return ff_filter_frame(outlink, frame);
445 }
446 
447 static const AVOption src_options[] = {
448  { "size", "Dimensions of the generated video.", OFFSET(size), AV_OPT_TYPE_STRING, { .str = "" }, .flags = FLAGS },
449  { "framerate", NULL, OFFSET(framerate), AV_OPT_TYPE_STRING, { .str = "25" }, .flags = FLAGS },
450  { "filter_name", NULL, OFFSET(dl_name), AV_OPT_TYPE_STRING, .flags = FLAGS },
451  { "filter_params", NULL, OFFSET(params), AV_OPT_TYPE_STRING, .flags = FLAGS },
452  { NULL },
453 };
454 
455 static const AVClass src_class = {
456  .class_name = "frei0r_src",
457  .item_name = av_default_item_name,
458  .option = src_options,
459  .version = LIBAVUTIL_VERSION_INT,
460 };
461 
463  {
464  .name = "default",
465  .type = AVMEDIA_TYPE_VIDEO,
466  .request_frame = source_request_frame,
467  .config_props = source_config_props
468  },
469  { NULL }
470 };
471 
473  .name = "frei0r_src",
474  .description = NULL_IF_CONFIG_SMALL("Generate a frei0r source."),
475 
476  .priv_size = sizeof(Frei0rContext),
477  .priv_class = &src_class,
478  .init = source_init,
479  .uninit = uninit,
480 
482 
483  .inputs = NULL,
484 
485  .outputs = avfilter_vsrc_frei0r_src_outputs,
486 };
static av_cold int filter_init(AVFilterContext *ctx)
Definition: vf_frei0r.c:255
#define FLAGS
Definition: vf_frei0r.c:335
AVFilter ff_vf_frei0r
Definition: vf_frei0r.c:367
char * dl_name
Definition: vf_frei0r.c:68
This structure describes decoded (raw) audio or video data.
Definition: frame.h:140
int av_parse_video_rate(AVRational *rate, const char *arg)
Parse str and store the detected values in *rate.
Definition: parseutils.c:127
AVOption.
Definition: opt.h:234
int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str)
Parse str and put in width_ptr and height_ptr the detected values.
Definition: parseutils.c:100
misc image utilities
static const AVFilterPad outputs[]
Definition: af_ashowinfo.c:259
Main libavfilter public API header.
memory handling functions
int num
numerator
Definition: rational.h:44
f0r_plugin_info_t plugin_info
Definition: vf_frei0r.c:59
av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (%s)\, len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic ? ac->func_descr_generic :ac->func_descr)
static const AVOption src_options[]
Definition: vf_frei0r.c:447
static enum AVSampleFormat formats[]
Definition: avresample.c:163
void(* f0r_get_plugin_info_f)(f0r_plugin_info_t *info)
Definition: vf_frei0r.c:47
int(* f0r_init_f)(void)
Definition: vf_frei0r.c:46
char * params
Definition: vf_frei0r.c:69
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:57
static const AVFilterPad avfilter_vf_frei0r_outputs[]
Definition: vf_frei0r.c:359
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
Definition: mem.c:202
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:165
const char * name
Pad name.
Definition: internal.h:41
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:39
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:747
f0r_get_param_value_f get_param_value
Definition: vf_frei0r.c:62
uint8_t
#define av_cold
Definition: attributes.h:66
AVOptions.
static int query_formats(AVFilterContext *ctx)
Definition: vf_frei0r.c:289
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:211
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_frei0r.c:262
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:91
double strtod(const char *, char **)
static double av_q2d(AVRational a)
Convert rational to double.
Definition: rational.h:69
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:140
static av_cold int frei0r_init(AVFilterContext *ctx, const char *dl_name, int type)
Definition: vf_frei0r.c:173
void ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:389
char * framerate
Definition: vf_frei0r.c:71
int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen, void *log_ctx)
Put the RGBA values that correspond to color_string in rgba_color.
Definition: parseutils.c:305
A filter pad used for either input or output.
Definition: internal.h:35
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:99
AVRational time_base
Definition: vf_frei0r.c:75
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:124
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
Definition: mem.c:190
void(* f0r_update_f)(f0r_instance_t instance, double time, const uint32_t *inframe, uint32_t *outframe)
Definition: vf_frei0r.c:49
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:80
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:148
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:92
void * priv
private data for use by the filter
Definition: avfilter.h:277
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:145
static const AVFilterPad avfilter_vsrc_frei0r_src_outputs[]
Definition: vf_frei0r.c:462
void(* f0r_get_param_info_f)(f0r_param_info_t *info, int param_index)
Definition: vf_frei0r.c:48
void(* f0r_deinit_f)(void)
Definition: vf_frei0r.c:45
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:89
#define fail()
Definition: checkasm.h:80
char * av_get_token(const char **buf, const char *term)
Unescape the given string until a non escaped terminating char, and return the token corresponding to...
Definition: avstring.c:121
char * size
Definition: vf_frei0r.c:70
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:90
AVFilter ff_vsrc_frei0r_src
Definition: vf_frei0r.c:472
void * dl_handle
Definition: vf_frei0r.c:57
common internal API header
int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of the image can be address...
Definition: imgutils.c:223
const char * name
Definition: qsvenc.c:44
static void * load_path(AVFilterContext *ctx, const char *prefix, const char *name)
Definition: vf_frei0r.c:164
uint64_t pts
Definition: vf_frei0r.c:76
static int source_config_props(AVFilterLink *outlink)
Definition: vf_frei0r.c:404
f0r_get_param_info_f get_param_info
Definition: vf_frei0r.c:61
AVFormatContext * ctx
Definition: movenc.c:48
static const AVClass src_class
Definition: vf_frei0r.c:455
f0r_destruct_f destruct
Definition: vf_frei0r.c:65
f0r_update_f update
Definition: vf_frei0r.c:56
static int config_input_props(AVFilterLink *inlink)
Definition: vf_frei0r.c:274
LIBAVUTIL_VERSION_INT
Definition: eval.c:55
static int set_params(AVFilterContext *ctx, const char *params)
Definition: vf_frei0r.c:137
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)
Definition: vf_frei0r.c:50
#define SLIBSUF
Definition: config.h:11
NULL
Definition: eval.c:55
static int width
Definition: utils.c:156
av_default_item_name
Definition: dnxhdenc.c:55
f0r_construct_f construct
Definition: vf_frei0r.c:64
void(* f0r_set_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index)
Definition: vf_frei0r.c:51
static const AVFilterPad avfilter_vf_frei0r_inputs[]
Definition: vf_frei0r.c:349
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:206
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
#define OFFSET(x)
Definition: vf_frei0r.c:334
f0r_instance_t instance
Definition: vf_frei0r.c:58
Describe the class of an AVClass context structure.
Definition: log.h:34
Filter definition.
Definition: avfilter.h:120
int index
Definition: gxfenc.c:72
static const AVFilterPad inputs[]
Definition: af_ashowinfo.c:248
static const AVClass filter_class
Definition: vf_frei0r.c:342
rational number numerator/denominator
Definition: rational.h:43
const char * name
Filter name.
Definition: avfilter.h:124
misc parsing utilities
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:274
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:257
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:122
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:146
int height
Definition: gxfenc.c:72
static const AVOption filter_options[]
Definition: vf_frei0r.c:336
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_frei0r.c:312
f0r_set_param_value_f set_param_value
Definition: vf_frei0r.c:63
static void * load_sym(AVFilterContext *ctx, const char *sym_name)
Definition: vf_frei0r.c:79
static int set_param(AVFilterContext *ctx, f0r_param_info_t info, int index, char *param)
Definition: vf_frei0r.c:88
int den
denominator
Definition: rational.h:45
static av_cold int init(AVCodecParserContext *s)
Definition: h264_parser.c:582
int ff_add_format(AVFilterFormats **avff, int fmt)
Add fmt to the list of media formats contained in *avff.
Definition: formats.c:208
A list of supported formats for one end of a filter link.
Definition: formats.h:64
void(* f0r_get_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index)
Definition: vf_frei0r.c:52
void(* f0r_destruct_f)(f0r_instance_t instance)
Definition: vf_frei0r.c:44
An instance of a filter.
Definition: avfilter.h:262
static int source_request_frame(AVFilterLink *outlink)
Definition: vf_frei0r.c:430
FILE * out
Definition: movenc.c:54
f0r_deinit_f deinit
Definition: vf_frei0r.c:66
f0r_instance_t(* f0r_construct_f)(unsigned int width, unsigned int height)
Definition: vf_frei0r.c:43
internal API functions
AVPixelFormat
Pixel format.
Definition: pixfmt.h:57
static av_cold int source_init(AVFilterContext *ctx)
Definition: vf_frei0r.c:383
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:386