FFmpeg
vf_psnr.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2011 Roger Pau Monné <roger.pau@entel.upc.edu>
3  * Copyright (c) 2011 Stefano Sabatini
4  * Copyright (c) 2013 Paul B Mahol
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * Calculate the PSNR between two input videos.
26  */
27 
28 #include "libavutil/avstring.h"
29 #include "libavutil/opt.h"
30 #include "libavutil/pixdesc.h"
31 #include "avfilter.h"
32 #include "drawutils.h"
33 #include "formats.h"
34 #include "framesync.h"
35 #include "internal.h"
36 #include "psnr.h"
37 #include "video.h"
38 
39 typedef struct PSNRContext {
40  const AVClass *class;
41  FFFrameSync fs;
42  double mse, min_mse, max_mse, mse_comp[4];
43  uint64_t nb_frames;
44  FILE *stats_file;
45  char *stats_file_str;
46  int stats_version;
47  int stats_header_written;
48  int stats_add_max;
49  int max[4], average_max;
50  int is_rgb;
51  uint8_t rgba_map[4];
52  char comps[4];
53  int nb_components;
54  int nb_threads;
55  int planewidth[4];
56  int planeheight[4];
57  double planeweight[4];
58  uint64_t **score;
59  PSNRDSPContext dsp;
60 } PSNRContext;
61 
62 #define OFFSET(x) offsetof(PSNRContext, x)
63 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
64 
65 static const AVOption psnr_options[] = {
66  {"stats_file", "Set file where to store per-frame difference information", OFFSET(stats_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
67  {"f", "Set file where to store per-frame difference information", OFFSET(stats_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
68  {"stats_version", "Set the format version for the stats file.", OFFSET(stats_version), AV_OPT_TYPE_INT, {.i64=1}, 1, 2, FLAGS },
69  {"output_max", "Add raw stats (max values) to the output log.", OFFSET(stats_add_max), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS},
70  { NULL }
71 };
72 
73 FRAMESYNC_DEFINE_CLASS(psnr, PSNRContext, fs);
74 
75 static inline unsigned pow_2(unsigned base)
76 {
77  return base*base;
78 }
79 
80 static inline double get_psnr(double mse, uint64_t nb_frames, int max)
81 {
82  return 10.0 * log10(pow_2(max) / (mse / nb_frames));
83 }
84 
85 static uint64_t sse_line_8bit(const uint8_t *main_line, const uint8_t *ref_line, int outw)
86 {
87  int j;
88  unsigned m2 = 0;
89 
90  for (j = 0; j < outw; j++)
91  m2 += pow_2(main_line[j] - ref_line[j]);
92 
93  return m2;
94 }
95 
96 static uint64_t sse_line_16bit(const uint8_t *_main_line, const uint8_t *_ref_line, int outw)
97 {
98  int j;
99  uint64_t m2 = 0;
100  const uint16_t *main_line = (const uint16_t *) _main_line;
101  const uint16_t *ref_line = (const uint16_t *) _ref_line;
102 
103  for (j = 0; j < outw; j++)
104  m2 += pow_2(main_line[j] - ref_line[j]);
105 
106  return m2;
107 }
108 
109 typedef struct ThreadData {
110  const uint8_t *main_data[4];
111  const uint8_t *ref_data[4];
112  int main_linesize[4];
113  int ref_linesize[4];
114  int planewidth[4];
115  int planeheight[4];
116  uint64_t **score;
117  int nb_components;
118  PSNRDSPContext *dsp;
119 } ThreadData;
120 
121 static
122 int compute_images_mse(AVFilterContext *ctx, void *arg,
123  int jobnr, int nb_jobs)
124 {
125  ThreadData *td = arg;
126  uint64_t *score = td->score[jobnr];
127 
128  for (int c = 0; c < td->nb_components; c++) {
129  const int outw = td->planewidth[c];
130  const int outh = td->planeheight[c];
131  const int slice_start = (outh * jobnr) / nb_jobs;
132  const int slice_end = (outh * (jobnr+1)) / nb_jobs;
133  const int ref_linesize = td->ref_linesize[c];
134  const int main_linesize = td->main_linesize[c];
135  const uint8_t *main_line = td->main_data[c] + main_linesize * slice_start;
136  const uint8_t *ref_line = td->ref_data[c] + ref_linesize * slice_start;
137  uint64_t m = 0;
138  for (int i = slice_start; i < slice_end; i++) {
139  m += td->dsp->sse_line(main_line, ref_line, outw);
140  ref_line += ref_linesize;
141  main_line += main_linesize;
142  }
143  score[c] = m;
144  }
145 
146  return 0;
147 }
148 
149 static void set_meta(AVDictionary **metadata, const char *key, char comp, float d)
150 {
151  char value[128];
152  snprintf(value, sizeof(value), "%f", d);
153  if (comp) {
154  char key2[128];
155  snprintf(key2, sizeof(key2), "%s%c", key, comp);
156  av_dict_set(metadata, key2, value, 0);
157  } else {
158  av_dict_set(metadata, key, value, 0);
159  }
160 }
161 
162 static int do_psnr(FFFrameSync *fs)
163 {
164  AVFilterContext *ctx = fs->parent;
165  PSNRContext *s = ctx->priv;
166  AVFrame *master, *ref;
167  double comp_mse[4], mse = 0.;
168  uint64_t comp_sum[4] = { 0 };
169  AVDictionary **metadata;
170  ThreadData td;
171  int ret;
172 
173  ret = ff_framesync_dualinput_get(fs, &master, &ref);
174  if (ret < 0)
175  return ret;
176  if (ctx->is_disabled || !ref)
177  return ff_filter_frame(ctx->outputs[0], master);
178  metadata = &master->metadata;
179 
180  td.nb_components = s->nb_components;
181  td.dsp = &s->dsp;
182  td.score = s->score;
183  for (int c = 0; c < s->nb_components; c++) {
184  td.main_data[c] = master->data[c];
185  td.ref_data[c] = ref->data[c];
186  td.main_linesize[c] = master->linesize[c];
187  td.ref_linesize[c] = ref->linesize[c];
188  td.planewidth[c] = s->planewidth[c];
189  td.planeheight[c] = s->planeheight[c];
190  }
191 
192  ff_filter_execute(ctx, compute_images_mse, &td, NULL,
193  FFMIN(s->planeheight[1], s->nb_threads));
194 
195  for (int j = 0; j < s->nb_threads; j++) {
196  for (int c = 0; c < s->nb_components; c++)
197  comp_sum[c] += s->score[j][c];
198  }
199 
200  for (int c = 0; c < s->nb_components; c++)
201  comp_mse[c] = comp_sum[c] / ((double)s->planewidth[c] * s->planeheight[c]);
202 
203  for (int c = 0; c < s->nb_components; c++)
204  mse += comp_mse[c] * s->planeweight[c];
205 
206  s->min_mse = FFMIN(s->min_mse, mse);
207  s->max_mse = FFMAX(s->max_mse, mse);
208 
209  s->mse += mse;
210 
211  for (int j = 0; j < s->nb_components; j++)
212  s->mse_comp[j] += comp_mse[j];
213  s->nb_frames++;
214 
215  for (int j = 0; j < s->nb_components; j++) {
216  int c = s->is_rgb ? s->rgba_map[j] : j;
217  set_meta(metadata, "lavfi.psnr.mse.", s->comps[j], comp_mse[c]);
218  set_meta(metadata, "lavfi.psnr.psnr.", s->comps[j], get_psnr(comp_mse[c], 1, s->max[c]));
219  }
220  set_meta(metadata, "lavfi.psnr.mse_avg", 0, mse);
221  set_meta(metadata, "lavfi.psnr.psnr_avg", 0, get_psnr(mse, 1, s->average_max));
222 
223  if (s->stats_file) {
224  if (s->stats_version == 2 && !s->stats_header_written) {
225  fprintf(s->stats_file, "psnr_log_version:2 fields:n");
226  fprintf(s->stats_file, ",mse_avg");
227  for (int j = 0; j < s->nb_components; j++) {
228  fprintf(s->stats_file, ",mse_%c", s->comps[j]);
229  }
230  fprintf(s->stats_file, ",psnr_avg");
231  for (int j = 0; j < s->nb_components; j++) {
232  fprintf(s->stats_file, ",psnr_%c", s->comps[j]);
233  }
234  if (s->stats_add_max) {
235  fprintf(s->stats_file, ",max_avg");
236  for (int j = 0; j < s->nb_components; j++) {
237  fprintf(s->stats_file, ",max_%c", s->comps[j]);
238  }
239  }
240  fprintf(s->stats_file, "\n");
241  s->stats_header_written = 1;
242  }
243  fprintf(s->stats_file, "n:%"PRId64" mse_avg:%0.2f ", s->nb_frames, mse);
244  for (int j = 0; j < s->nb_components; j++) {
245  int c = s->is_rgb ? s->rgba_map[j] : j;
246  fprintf(s->stats_file, "mse_%c:%0.2f ", s->comps[j], comp_mse[c]);
247  }
248  fprintf(s->stats_file, "psnr_avg:%0.2f ", get_psnr(mse, 1, s->average_max));
249  for (int j = 0; j < s->nb_components; j++) {
250  int c = s->is_rgb ? s->rgba_map[j] : j;
251  fprintf(s->stats_file, "psnr_%c:%0.2f ", s->comps[j],
252  get_psnr(comp_mse[c], 1, s->max[c]));
253  }
254  if (s->stats_version == 2 && s->stats_add_max) {
255  fprintf(s->stats_file, "max_avg:%d ", s->average_max);
256  for (int j = 0; j < s->nb_components; j++) {
257  int c = s->is_rgb ? s->rgba_map[j] : j;
258  fprintf(s->stats_file, "max_%c:%d ", s->comps[j], s->max[c]);
259  }
260  }
261  fprintf(s->stats_file, "\n");
262  }
263 
264  return ff_filter_frame(ctx->outputs[0], master);
265 }
266 
267 static av_cold int init(AVFilterContext *ctx)
268 {
269  PSNRContext *s = ctx->priv;
270 
271  s->min_mse = +INFINITY;
272  s->max_mse = -INFINITY;
273 
274  if (s->stats_file_str) {
275  if (s->stats_version < 2 && s->stats_add_max) {
276  av_log(ctx, AV_LOG_ERROR,
277  "stats_add_max was specified but stats_version < 2.\n" );
278  return AVERROR(EINVAL);
279  }
280  if (!strcmp(s->stats_file_str, "-")) {
281  s->stats_file = stdout;
282  } else {
283  s->stats_file = avpriv_fopen_utf8(s->stats_file_str, "w");
284  if (!s->stats_file) {
285  int err = AVERROR(errno);
286  char buf[128];
287  av_strerror(err, buf, sizeof(buf));
288  av_log(ctx, AV_LOG_ERROR, "Could not open stats file %s: %s\n",
289  s->stats_file_str, buf);
290  return err;
291  }
292  }
293  }
294 
295  s->fs.on_event = do_psnr;
296  return 0;
297 }
298 
299 static const enum AVPixelFormat pix_fmts[] = {
300  AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
301 #define PF_NOALPHA(suf) AV_PIX_FMT_YUV420##suf, AV_PIX_FMT_YUV422##suf, AV_PIX_FMT_YUV444##suf
302 #define PF_ALPHA(suf) AV_PIX_FMT_YUVA420##suf, AV_PIX_FMT_YUVA422##suf, AV_PIX_FMT_YUVA444##suf
303 #define PF(suf) PF_NOALPHA(suf), PF_ALPHA(suf)
304  PF(P), PF(P9), PF(P10), PF_NOALPHA(P12), PF_NOALPHA(P14), PF(P16),
305  AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
306  AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
307  AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
308  AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
309  AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
310  AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
311  AV_PIX_FMT_NONE
312 };
313 
314 static int config_input_ref(AVFilterLink *inlink)
315 {
316  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
317  AVFilterContext *ctx = inlink->dst;
318  PSNRContext *s = ctx->priv;
319  double average_max;
320  unsigned sum;
321  int j;
322 
323  s->nb_threads = ff_filter_get_nb_threads(ctx);
324  s->nb_components = desc->nb_components;
325  if (ctx->inputs[0]->w != ctx->inputs[1]->w ||
326  ctx->inputs[0]->h != ctx->inputs[1]->h) {
327  av_log(ctx, AV_LOG_ERROR, "Width and height of input videos must be same.\n");
328  return AVERROR(EINVAL);
329  }
330 
331  s->max[0] = (1 << desc->comp[0].depth) - 1;
332  s->max[1] = (1 << desc->comp[1].depth) - 1;
333  s->max[2] = (1 << desc->comp[2].depth) - 1;
334  s->max[3] = (1 << desc->comp[3].depth) - 1;
335 
336  s->is_rgb = ff_fill_rgba_map(s->rgba_map, inlink->format) >= 0;
337  s->comps[0] = s->is_rgb ? 'r' : 'y' ;
338  s->comps[1] = s->is_rgb ? 'g' : 'u' ;
339  s->comps[2] = s->is_rgb ? 'b' : 'v' ;
340  s->comps[3] = 'a';
341 
342  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
343  s->planeheight[0] = s->planeheight[3] = inlink->h;
344  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
345  s->planewidth[0] = s->planewidth[3] = inlink->w;
346  sum = 0;
347  for (j = 0; j < s->nb_components; j++)
348  sum += s->planeheight[j] * s->planewidth[j];
349  average_max = 0;
350  for (j = 0; j < s->nb_components; j++) {
351  s->planeweight[j] = (double) s->planeheight[j] * s->planewidth[j] / sum;
352  average_max += s->max[j] * s->planeweight[j];
353  }
354  s->average_max = lrint(average_max);
355 
356  s->dsp.sse_line = desc->comp[0].depth > 8 ? sse_line_16bit : sse_line_8bit;
357 #if ARCH_X86
358  ff_psnr_init_x86(&s->dsp, desc->comp[0].depth);
359 #endif
360 
361  s->score = av_calloc(s->nb_threads, sizeof(*s->score));
362  if (!s->score)
363  return AVERROR(ENOMEM);
364 
365  for (int t = 0; t < s->nb_threads; t++) {
366  s->score[t] = av_calloc(s->nb_components, sizeof(*s->score[0]));
367  if (!s->score[t])
368  return AVERROR(ENOMEM);
369  }
370 
371  return 0;
372 }
373 
374 static int config_output(AVFilterLink *outlink)
375 {
376  AVFilterContext *ctx = outlink->src;
377  PSNRContext *s = ctx->priv;
378  AVFilterLink *mainlink = ctx->inputs[0];
379  int ret;
380 
381  ret = ff_framesync_init_dualinput(&s->fs, ctx);
382  if (ret < 0)
383  return ret;
384  outlink->w = mainlink->w;
385  outlink->h = mainlink->h;
386  outlink->time_base = mainlink->time_base;
387  outlink->sample_aspect_ratio = mainlink->sample_aspect_ratio;
388  outlink->frame_rate = mainlink->frame_rate;
389  if ((ret = ff_framesync_configure(&s->fs)) < 0)
390  return ret;
391 
392  outlink->time_base = s->fs.time_base;
393 
394  if (av_cmp_q(mainlink->time_base, outlink->time_base) ||
395  av_cmp_q(ctx->inputs[1]->time_base, outlink->time_base))
396  av_log(ctx, AV_LOG_WARNING, "not matching timebases found between first input: %d/%d and second input %d/%d, results may be incorrect!\n",
397  mainlink->time_base.num, mainlink->time_base.den,
398  ctx->inputs[1]->time_base.num, ctx->inputs[1]->time_base.den);
399 
400  return 0;
401 }
402 
403 static int activate(AVFilterContext *ctx)
404 {
405  PSNRContext *s = ctx->priv;
406  return ff_framesync_activate(&s->fs);
407 }
408 
409 static av_cold void uninit(AVFilterContext *ctx)
410 {
411  PSNRContext *s = ctx->priv;
412 
413  if (s->nb_frames > 0) {
414  int j;
415  char buf[256];
416 
417  buf[0] = 0;
418  for (j = 0; j < s->nb_components; j++) {
419  int c = s->is_rgb ? s->rgba_map[j] : j;
420  av_strlcatf(buf, sizeof(buf), " %c:%f", s->comps[j],
421  get_psnr(s->mse_comp[c], s->nb_frames, s->max[c]));
422  }
423  av_log(ctx, AV_LOG_INFO, "PSNR%s average:%f min:%f max:%f\n",
424  buf,
425  get_psnr(s->mse, s->nb_frames, s->average_max),
426  get_psnr(s->max_mse, 1, s->average_max),
427  get_psnr(s->min_mse, 1, s->average_max));
428  }
429 
430  ff_framesync_uninit(&s->fs);
431  for (int t = 0; t < s->nb_threads && s->score; t++)
432  av_freep(&s->score[t]);
433  av_freep(&s->score);
434 
435  if (s->stats_file && s->stats_file != stdout)
436  fclose(s->stats_file);
437 }
438 
439 static const AVFilterPad psnr_inputs[] = {
440  {
441  .name = "main",
442  .type = AVMEDIA_TYPE_VIDEO,
443  },{
444  .name = "reference",
445  .type = AVMEDIA_TYPE_VIDEO,
446  .config_props = config_input_ref,
447  },
448 };
449 
450 static const AVFilterPad psnr_outputs[] = {
451  {
452  .name = "default",
453  .type = AVMEDIA_TYPE_VIDEO,
454  .config_props = config_output,
455  },
456 };
457 
458 const AVFilter ff_vf_psnr = {
459  .name = "psnr",
460  .description = NULL_IF_CONFIG_SMALL("Calculate the PSNR between two video streams."),
461  .preinit = psnr_framesync_preinit,
462  .init = init,
463  .uninit = uninit,
464  .activate = activate,
465  .priv_size = sizeof(PSNRContext),
466  .priv_class = &psnr_class,
467  FILTER_INPUTS(psnr_inputs),
468  FILTER_OUTPUTS(psnr_outputs),
469  FILTER_PIXFMTS_ARRAY(pix_fmts),
470  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
471  AVFILTER_FLAG_SLICE_THREADS |
472  AVFILTER_FLAG_METADATA_ONLY,
473 };
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:428
ff_framesync_configure
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:119
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
PSNRContext::stats_version
int stats_version
Definition: vf_psnr.c:46
config_input_ref
static int config_input_ref(AVFilterLink *inlink)
Definition: vf_psnr.c:314
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
psnr
static double psnr(double d)
Definition: ffmpeg.c:832
PSNRContext::max_mse
double max_mse
Definition: vf_psnr.c:42
do_psnr
static int do_psnr(FFFrameSync *fs)
Definition: vf_psnr.c:162
INFINITY
#define INFINITY
Definition: mathematics.h:67
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
set_meta
static void set_meta(AVDictionary **metadata, const char *key, char comp, float d)
Definition: vf_psnr.c:149
PSNRContext::max
int max[4]
Definition: vf_psnr.c:49
ff_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:285
PSNRContext
Definition: vf_psnr.c:39
PSNRContext::planewidth
int planewidth[4]
Definition: vf_psnr.c:55
comp
static void comp(unsigned char *dst, ptrdiff_t dst_stride, unsigned char *src, ptrdiff_t src_stride, int add)
Definition: eamad.c:86
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:999
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2662
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:170
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
PSNRContext::is_rgb
int is_rgb
Definition: vf_psnr.c:50
PSNRContext::stats_file_str
char * stats_file_str
Definition: vf_psnr.c:45
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
pixdesc.h
ThreadData::ref_linesize
int ref_linesize
Definition: vf_bm3d.c:58
AVOption
AVOption.
Definition: opt.h:251
base
uint8_t base
Definition: vp3data.h:141
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
max
#define max(a, b)
Definition: cuda_runtime.h:33
AVDictionary
Definition: dict.c:30
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:175
FFFrameSync
Frame sync structure.
Definition: framesync.h:146
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_psnr.c:267
video.h
av_strlcatf
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:104
ff_psnr_init_x86
void ff_psnr_init_x86(PSNRDSPContext *dsp, int bpp)
Definition: vf_psnr_init.c:28
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:386
formats.h
psnr_inputs
static const AVFilterPad psnr_inputs[]
Definition: vf_psnr.c:439
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:424
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
av_strerror
int av_strerror(int errnum, char *errbuf, size_t errbuf_size)
Put a description of the AVERROR code errnum in errbuf.
Definition: error.c:108
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:422
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:390
AVRational::num
int num
Numerator.
Definition: rational.h:59
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:248
lrint
#define lrint
Definition: tablegen.h:53
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
psnr.h
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:426
s
#define s(width, name)
Definition: cbs_vp9.c:256
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:427
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:50
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2013
FRAMESYNC_DEFINE_CLASS
FRAMESYNC_DEFINE_CLASS(psnr, PSNRContext, fs)
PSNRContext::mse
double mse
Definition: vf_psnr.c:42
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:389
key
const char * key
Definition: hwcontext_opencl.c:174
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
arg
const char * arg
Definition: jacosubdec.c:67
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:387
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:425
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:258
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
PSNRContext::comps
char comps[4]
Definition: vf_psnr.c:52
double
double
Definition: af_crystalizer.c:132
ThreadData::planewidth
int planewidth[4]
Definition: vf_identity.c:90
psnr_options
static const AVOption psnr_options[]
Definition: vf_psnr.c:65
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:421
PSNRDSPContext
Definition: psnr.h:27
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
sse_line_8bit
static uint64_t sse_line_8bit(const uint8_t *main_line, const uint8_t *ref_line, int outw)
Definition: vf_psnr.c:85
PSNRContext::stats_header_written
int stats_header_written
Definition: vf_psnr.c:47
ThreadData::dsp
PSNRDSPContext * dsp
Definition: vf_psnr.c:118
PSNRContext::rgba_map
uint8_t rgba_map[4]
Definition: vf_psnr.c:51
PF_NOALPHA
#define PF_NOALPHA(suf)
sse_line_16bit
static uint64_t sse_line_16bit(const uint8_t *_main_line, const uint8_t *_ref_line, int outw)
Definition: vf_psnr.c:96
psnr_outputs
static const AVFilterPad psnr_outputs[]
Definition: vf_psnr.c:450
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
ff_framesync_init_dualinput
int ff_framesync_init_dualinput(FFFrameSync *fs, AVFilterContext *parent)
Initialize a frame sync structure for dualinput.
Definition: framesync.c:353
master
const char * master
Definition: vf_curves.c:119
P
#define P
PSNRContext::nb_components
int nb_components
Definition: vf_psnr.c:53
PSNRContext::fs
FFFrameSync fs
Definition: vf_psnr.c:41
pow_2
static unsigned pow_2(unsigned base)
Definition: vf_psnr.c:75
PSNRContext::planeheight
int planeheight[4]
Definition: vf_psnr.c:56
for
for(k=2;k<=8;++k)
Definition: h264pred_template.c:425
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_psnr.c:409
PSNRContext::min_mse
double min_mse
Definition: vf_psnr.c:42
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_psnr.c:299
PF
#define PF(suf)
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition: log.h:191
internal.h
ThreadData::score
uint64_t ** score
Definition: vf_identity.c:92
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:423
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:783
ThreadData
Used for passing data between threads.
Definition: dsddec.c:68
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_psnr.c:374
PSNRContext::mse_comp
double mse_comp[4]
Definition: vf_psnr.c:42
value
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default value
Definition: writing_filters.txt:86
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:100
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
avpriv_fopen_utf8
FILE * avpriv_fopen_utf8(const char *path, const char *mode)
Open a file using a UTF-8 filename.
Definition: file_open.c:158
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:272
PSNRContext::planeweight
double planeweight[4]
Definition: vf_psnr.c:57
PSNRContext::average_max
int average_max
Definition: vf_psnr.c:49
PSNRContext::dsp
PSNRDSPContext dsp
Definition: vf_psnr.c:59
PSNRContext::stats_add_max
int stats_add_max
Definition: vf_psnr.c:48
av_cmp_q
static int av_cmp_q(AVRational a, AVRational b)
Compare two rationals.
Definition: rational.h:89
AVFilter
Filter definition.
Definition: avfilter.h:171
ret
ret
Definition: filter_design.txt:187
PSNRContext::nb_threads
int nb_threads
Definition: vf_psnr.c:54
framesync.h
get_psnr
static double get_psnr(double mse, uint64_t nb_frames, int max)
Definition: vf_psnr.c:80
AVRational::den
int den
Denominator.
Definition: rational.h:60
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
AVFILTER_FLAG_METADATA_ONLY
#define AVFILTER_FLAG_METADATA_ONLY
The filter is a "metadata" filter - it does not modify the frame data in any way.
Definition: avfilter.h:143
ref
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:112
ThreadData::main_linesize
int main_linesize[4]
Definition: vf_identity.c:88
activate
static int activate(AVFilterContext *ctx)
Definition: vf_psnr.c:403
AVFilterContext
An instance of a filter.
Definition: avfilter.h:408
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:127
desc
const char * desc
Definition: libsvtav1.c:83
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
ThreadData::nb_components
int nb_components
Definition: vf_identity.c:93
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
av_dict_set
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
FLAGS
#define FLAGS
Definition: vf_psnr.c:63
compute_images_mse
static int compute_images_mse(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_psnr.c:122
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
ff_fill_rgba_map
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Definition: drawutils.c:35
ThreadData::planeheight
int planeheight[4]
Definition: vf_identity.c:91
d
d
Definition: ffmpeg_filter.c:153
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:160
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
PSNRContext::nb_frames
uint64_t nb_frames
Definition: vf_psnr.c:43
ff_framesync_activate
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
Definition: framesync.c:336
avstring.h
ff_framesync_dualinput_get
int ff_framesync_dualinput_get(FFFrameSync *fs, AVFrame **f0, AVFrame **f1)
Definition: framesync.c:371
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:388
drawutils.h
PSNRContext::stats_file
FILE * stats_file
Definition: vf_psnr.c:44
ff_filter_execute
static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: internal.h:142
ThreadData::ref_data
const uint8_t * ref_data[4]
Definition: vf_identity.c:87
snprintf
#define snprintf
Definition: snprintf.h:34
OFFSET
#define OFFSET(x)
Definition: vf_psnr.c:62
PSNRContext::score
uint64_t ** score
Definition: vf_psnr.c:58
ff_vf_psnr
const AVFilter ff_vf_psnr
Definition: vf_psnr.c:458
ThreadData::main_data
const uint8_t * main_data[4]
Definition: vf_identity.c:86
Generated on Wed Aug 24 2022 21:42:08 for FFmpeg by   doxygen 1.8.17