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  * Caculate 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;
42  double mse, min_mse, max_mse, mse_comp[4];
43  uint64_t nb_frames;
44  FILE *stats_file;
49  int max[4], average_max;
50  int is_rgb;
51  uint8_t rgba_map[4];
52  char comps[4];
55  int planewidth[4];
56  int planeheight[4];
57  double planeweight[4];
58  uint64_t **score;
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 
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;
119 } ThreadData;
120 
121 static
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 
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  ctx->internal->execute(ctx, compute_images_mse, &td, NULL, FFMIN(s->planeheight[1], s->nb_threads));
193 
194  for (int j = 0; j < s->nb_threads; j++) {
195  for (int c = 0; c < s->nb_components; c++)
196  comp_sum[c] += s->score[j][c];
197  }
198 
199  for (int c = 0; c < s->nb_components; c++)
200  comp_mse[c] = comp_sum[c] / ((double)s->planewidth[c] * s->planeheight[c]);
201 
202  for (int c = 0; c < s->nb_components; c++)
203  mse += comp_mse[c] * s->planeweight[c];
204 
205  s->min_mse = FFMIN(s->min_mse, mse);
206  s->max_mse = FFMAX(s->max_mse, mse);
207 
208  s->mse += mse;
209 
210  for (int j = 0; j < s->nb_components; j++)
211  s->mse_comp[j] += comp_mse[j];
212  s->nb_frames++;
213 
214  for (int j = 0; j < s->nb_components; j++) {
215  int c = s->is_rgb ? s->rgba_map[j] : j;
216  set_meta(metadata, "lavfi.psnr.mse.", s->comps[j], comp_mse[c]);
217  set_meta(metadata, "lavfi.psnr.psnr.", s->comps[j], get_psnr(comp_mse[c], 1, s->max[c]));
218  }
219  set_meta(metadata, "lavfi.psnr.mse_avg", 0, mse);
220  set_meta(metadata, "lavfi.psnr.psnr_avg", 0, get_psnr(mse, 1, s->average_max));
221 
222  if (s->stats_file) {
223  if (s->stats_version == 2 && !s->stats_header_written) {
224  fprintf(s->stats_file, "psnr_log_version:2 fields:n");
225  fprintf(s->stats_file, ",mse_avg");
226  for (int j = 0; j < s->nb_components; j++) {
227  fprintf(s->stats_file, ",mse_%c", s->comps[j]);
228  }
229  fprintf(s->stats_file, ",psnr_avg");
230  for (int j = 0; j < s->nb_components; j++) {
231  fprintf(s->stats_file, ",psnr_%c", s->comps[j]);
232  }
233  if (s->stats_add_max) {
234  fprintf(s->stats_file, ",max_avg");
235  for (int j = 0; j < s->nb_components; j++) {
236  fprintf(s->stats_file, ",max_%c", s->comps[j]);
237  }
238  }
239  fprintf(s->stats_file, "\n");
240  s->stats_header_written = 1;
241  }
242  fprintf(s->stats_file, "n:%"PRId64" mse_avg:%0.2f ", s->nb_frames, mse);
243  for (int j = 0; j < s->nb_components; j++) {
244  int c = s->is_rgb ? s->rgba_map[j] : j;
245  fprintf(s->stats_file, "mse_%c:%0.2f ", s->comps[j], comp_mse[c]);
246  }
247  fprintf(s->stats_file, "psnr_avg:%0.2f ", get_psnr(mse, 1, s->average_max));
248  for (int j = 0; j < s->nb_components; j++) {
249  int c = s->is_rgb ? s->rgba_map[j] : j;
250  fprintf(s->stats_file, "psnr_%c:%0.2f ", s->comps[j],
251  get_psnr(comp_mse[c], 1, s->max[c]));
252  }
253  if (s->stats_version == 2 && s->stats_add_max) {
254  fprintf(s->stats_file, "max_avg:%d ", s->average_max);
255  for (int j = 0; j < s->nb_components; j++) {
256  int c = s->is_rgb ? s->rgba_map[j] : j;
257  fprintf(s->stats_file, "max_%c:%d ", s->comps[j], s->max[c]);
258  }
259  }
260  fprintf(s->stats_file, "\n");
261  }
262 
263  return ff_filter_frame(ctx->outputs[0], master);
264 }
265 
267 {
268  PSNRContext *s = ctx->priv;
269 
270  s->min_mse = +INFINITY;
271  s->max_mse = -INFINITY;
272 
273  if (s->stats_file_str) {
274  if (s->stats_version < 2 && s->stats_add_max) {
276  "stats_add_max was specified but stats_version < 2.\n" );
277  return AVERROR(EINVAL);
278  }
279  if (!strcmp(s->stats_file_str, "-")) {
280  s->stats_file = stdout;
281  } else {
282  s->stats_file = fopen(s->stats_file_str, "w");
283  if (!s->stats_file) {
284  int err = AVERROR(errno);
285  char buf[128];
286  av_strerror(err, buf, sizeof(buf));
287  av_log(ctx, AV_LOG_ERROR, "Could not open stats file %s: %s\n",
288  s->stats_file_str, buf);
289  return err;
290  }
291  }
292  }
293 
294  s->fs.on_event = do_psnr;
295  return 0;
296 }
297 
299 {
300  static const enum AVPixelFormat pix_fmts[] = {
302 #define PF_NOALPHA(suf) AV_PIX_FMT_YUV420##suf, AV_PIX_FMT_YUV422##suf, AV_PIX_FMT_YUV444##suf
303 #define PF_ALPHA(suf) AV_PIX_FMT_YUVA420##suf, AV_PIX_FMT_YUVA422##suf, AV_PIX_FMT_YUVA444##suf
304 #define PF(suf) PF_NOALPHA(suf), PF_ALPHA(suf)
305  PF(P), PF(P9), PF(P10), PF_NOALPHA(P12), PF_NOALPHA(P14), PF(P16),
313  };
314 
316  if (!fmts_list)
317  return AVERROR(ENOMEM);
318  return ff_set_common_formats(ctx, fmts_list);
319 }
320 
322 {
324  AVFilterContext *ctx = inlink->dst;
325  PSNRContext *s = ctx->priv;
326  double average_max;
327  unsigned sum;
328  int j;
329 
330  s->nb_threads = ff_filter_get_nb_threads(ctx);
331  s->nb_components = desc->nb_components;
332  if (ctx->inputs[0]->w != ctx->inputs[1]->w ||
333  ctx->inputs[0]->h != ctx->inputs[1]->h) {
334  av_log(ctx, AV_LOG_ERROR, "Width and height of input videos must be same.\n");
335  return AVERROR(EINVAL);
336  }
337  if (ctx->inputs[0]->format != ctx->inputs[1]->format) {
338  av_log(ctx, AV_LOG_ERROR, "Inputs must be of same pixel format.\n");
339  return AVERROR(EINVAL);
340  }
341 
342  s->max[0] = (1 << desc->comp[0].depth) - 1;
343  s->max[1] = (1 << desc->comp[1].depth) - 1;
344  s->max[2] = (1 << desc->comp[2].depth) - 1;
345  s->max[3] = (1 << desc->comp[3].depth) - 1;
346 
347  s->is_rgb = ff_fill_rgba_map(s->rgba_map, inlink->format) >= 0;
348  s->comps[0] = s->is_rgb ? 'r' : 'y' ;
349  s->comps[1] = s->is_rgb ? 'g' : 'u' ;
350  s->comps[2] = s->is_rgb ? 'b' : 'v' ;
351  s->comps[3] = 'a';
352 
353  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
354  s->planeheight[0] = s->planeheight[3] = inlink->h;
355  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
356  s->planewidth[0] = s->planewidth[3] = inlink->w;
357  sum = 0;
358  for (j = 0; j < s->nb_components; j++)
359  sum += s->planeheight[j] * s->planewidth[j];
360  average_max = 0;
361  for (j = 0; j < s->nb_components; j++) {
362  s->planeweight[j] = (double) s->planeheight[j] * s->planewidth[j] / sum;
363  average_max += s->max[j] * s->planeweight[j];
364  }
365  s->average_max = lrint(average_max);
366 
367  s->dsp.sse_line = desc->comp[0].depth > 8 ? sse_line_16bit : sse_line_8bit;
368  if (ARCH_X86)
369  ff_psnr_init_x86(&s->dsp, desc->comp[0].depth);
370 
371  s->score = av_calloc(s->nb_threads, sizeof(*s->score));
372  if (!s->score)
373  return AVERROR(ENOMEM);
374 
375  for (int t = 0; t < s->nb_threads; t++) {
376  s->score[t] = av_calloc(s->nb_components, sizeof(*s->score[0]));
377  if (!s->score[t])
378  return AVERROR(ENOMEM);
379  }
380 
381  return 0;
382 }
383 
384 static int config_output(AVFilterLink *outlink)
385 {
386  AVFilterContext *ctx = outlink->src;
387  PSNRContext *s = ctx->priv;
388  AVFilterLink *mainlink = ctx->inputs[0];
389  int ret;
390 
392  if (ret < 0)
393  return ret;
394  outlink->w = mainlink->w;
395  outlink->h = mainlink->h;
396  outlink->time_base = mainlink->time_base;
397  outlink->sample_aspect_ratio = mainlink->sample_aspect_ratio;
398  outlink->frame_rate = mainlink->frame_rate;
399  if ((ret = ff_framesync_configure(&s->fs)) < 0)
400  return ret;
401 
402  outlink->time_base = s->fs.time_base;
403 
404  if (av_cmp_q(mainlink->time_base, outlink->time_base) ||
405  av_cmp_q(ctx->inputs[1]->time_base, outlink->time_base))
406  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",
407  mainlink->time_base.num, mainlink->time_base.den,
408  ctx->inputs[1]->time_base.num, ctx->inputs[1]->time_base.den);
409 
410  return 0;
411 }
412 
414 {
415  PSNRContext *s = ctx->priv;
416  return ff_framesync_activate(&s->fs);
417 }
418 
420 {
421  PSNRContext *s = ctx->priv;
422 
423  if (s->nb_frames > 0) {
424  int j;
425  char buf[256];
426 
427  buf[0] = 0;
428  for (j = 0; j < s->nb_components; j++) {
429  int c = s->is_rgb ? s->rgba_map[j] : j;
430  av_strlcatf(buf, sizeof(buf), " %c:%f", s->comps[j],
431  get_psnr(s->mse_comp[c], s->nb_frames, s->max[c]));
432  }
433  av_log(ctx, AV_LOG_INFO, "PSNR%s average:%f min:%f max:%f\n",
434  buf,
435  get_psnr(s->mse, s->nb_frames, s->average_max),
436  get_psnr(s->max_mse, 1, s->average_max),
437  get_psnr(s->min_mse, 1, s->average_max));
438  }
439 
440  ff_framesync_uninit(&s->fs);
441  for (int t = 0; t < s->nb_threads && s->score; t++)
442  av_freep(&s->score[t]);
443  av_freep(&s->score);
444 
445  if (s->stats_file && s->stats_file != stdout)
446  fclose(s->stats_file);
447 }
448 
449 static const AVFilterPad psnr_inputs[] = {
450  {
451  .name = "main",
452  .type = AVMEDIA_TYPE_VIDEO,
453  },{
454  .name = "reference",
455  .type = AVMEDIA_TYPE_VIDEO,
456  .config_props = config_input_ref,
457  },
458  { NULL }
459 };
460 
461 static const AVFilterPad psnr_outputs[] = {
462  {
463  .name = "default",
464  .type = AVMEDIA_TYPE_VIDEO,
465  .config_props = config_output,
466  },
467  { NULL }
468 };
469 
471  .name = "psnr",
472  .description = NULL_IF_CONFIG_SMALL("Calculate the PSNR between two video streams."),
473  .preinit = psnr_framesync_preinit,
474  .init = init,
475  .uninit = uninit,
476  .query_formats = query_formats,
477  .activate = activate,
478  .priv_size = sizeof(PSNRContext),
479  .priv_class = &psnr_class,
480  .inputs = psnr_inputs,
483 };
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:411
ff_framesync_configure
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:124
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:321
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
psnr
static double psnr(double d)
Definition: ffmpeg.c:1441
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
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
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:290
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:85
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:978
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2540
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:303
pixdesc.h
ThreadData::ref_linesize
int ref_linesize
Definition: vf_bm3d.c:58
AVOption
AVOption.
Definition: opt.h:247
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:149
FFFrameSync
Frame sync structure.
Definition: framesync.h:146
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_psnr.c:266
video.h
AVFormatContext::internal
AVFormatInternal * internal
An opaque field for libavformat internal usage.
Definition: avformat.h:1565
av_strlcatf
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:101
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:369
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
formats.h
psnr_inputs
static const AVFilterPad psnr_inputs[]
Definition: vf_psnr.c:449
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:407
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:105
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:405
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:373
AVRational::num
int num
Numerator.
Definition: rational.h:59
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
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
inputs
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Definition: filter_design.txt:243
ff_set_common_formats
int 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:580
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:409
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:410
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:51
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2033
FRAMESYNC_DEFINE_CLASS
FRAMESYNC_DEFINE_CLASS(psnr, PSNRContext, fs)
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:290
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:372
key
const char * key
Definition: hwcontext_opencl.c:168
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:370
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:408
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_psnr.c:298
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:259
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
ThreadData::planewidth
int planewidth[4]
Definition: vf_identity.c:88
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:404
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
for
for(j=16;j >0;--j)
Definition: h264pred_template.c:469
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:461
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:116
ff_framesync_init_dualinput
int ff_framesync_init_dualinput(FFFrameSync *fs, AVFilterContext *parent)
Initialize a frame sync structure for dualinput.
Definition: framesync.c:358
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
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_psnr.c:419
PSNRContext::min_mse
double min_mse
Definition: vf_psnr.c:42
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:90
i
int i
Definition: input.c:406
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:406
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:762
ThreadData
Used for passing data between threads.
Definition: dsddec.c:67
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_psnr.c:384
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:60
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:145
ret
ret
Definition: filter_design.txt:187
PSNRContext::nb_threads
int nb_threads
Definition: vf_psnr.c:54
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Definition: mem.c:251
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:224
avfilter.h
ref
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
ThreadData::main_linesize
int main_linesize[4]
Definition: vf_identity.c:86
activate
static int activate(AVFilterContext *ctx)
Definition: vf_psnr.c:413
AVFilterContext
An instance of a filter.
Definition: avfilter.h:333
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:117
desc
const char * desc
Definition: libsvtav1.c:79
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:91
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:241
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
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:33
ThreadData::planeheight
int planeheight[4]
Definition: vf_identity.c:89
d
d
Definition: ffmpeg_filter.c:156
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:134
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
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:28
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:341
avstring.h
ff_framesync_dualinput_get
int ff_framesync_dualinput_get(FFFrameSync *fs, AVFrame **f0, AVFrame **f1)
Definition: framesync.c:376
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:228
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:371
drawutils.h
PSNRContext::stats_file
FILE * stats_file
Definition: vf_psnr.c:44
ThreadData::ref_data
const uint8_t * ref_data[4]
Definition: vf_identity.c:85
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:470
ThreadData::main_data
const uint8_t * main_data[4]
Definition: vf_identity.c:84