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/file_open.h"
30 #include "libavutil/opt.h"
31 #include "libavutil/pixdesc.h"
32 #include "avfilter.h"
33 #include "drawutils.h"
34 #include "framesync.h"
35 #include "internal.h"
36 #include "psnr.h"
37 
38 typedef struct PSNRContext {
39  const AVClass *class;
41  double mse, min_mse, max_mse, mse_comp[4];
42  uint64_t nb_frames;
43  FILE *stats_file;
48  int max[4], average_max;
49  int is_rgb;
50  uint8_t rgba_map[4];
51  char comps[4];
54  int planewidth[4];
55  int planeheight[4];
56  double planeweight[4];
57  uint64_t **score;
59 } PSNRContext;
60 
61 #define OFFSET(x) offsetof(PSNRContext, x)
62 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
63 
64 static const AVOption psnr_options[] = {
65  {"stats_file", "Set file where to store per-frame difference information", OFFSET(stats_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
66  {"f", "Set file where to store per-frame difference information", OFFSET(stats_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
67  {"stats_version", "Set the format version for the stats file.", OFFSET(stats_version), AV_OPT_TYPE_INT, {.i64=1}, 1, 2, FLAGS },
68  {"output_max", "Add raw stats (max values) to the output log.", OFFSET(stats_add_max), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS},
69  { NULL }
70 };
71 
73 
74 static inline unsigned pow_2(unsigned base)
75 {
76  return base*base;
77 }
78 
79 static inline double get_psnr(double mse, uint64_t nb_frames, int max)
80 {
81  return 10.0 * log10(pow_2(max) / (mse / nb_frames));
82 }
83 
84 static uint64_t sse_line_8bit(const uint8_t *main_line, const uint8_t *ref_line, int outw)
85 {
86  int j;
87  unsigned m2 = 0;
88 
89  for (j = 0; j < outw; j++)
90  m2 += pow_2(main_line[j] - ref_line[j]);
91 
92  return m2;
93 }
94 
95 static uint64_t sse_line_16bit(const uint8_t *_main_line, const uint8_t *_ref_line, int outw)
96 {
97  int j;
98  uint64_t m2 = 0;
99  const uint16_t *main_line = (const uint16_t *) _main_line;
100  const uint16_t *ref_line = (const uint16_t *) _ref_line;
101 
102  for (j = 0; j < outw; j++)
103  m2 += pow_2(main_line[j] - ref_line[j]);
104 
105  return m2;
106 }
107 
108 typedef struct ThreadData {
109  const uint8_t *main_data[4];
110  const uint8_t *ref_data[4];
111  int main_linesize[4];
112  int ref_linesize[4];
113  int planewidth[4];
114  int planeheight[4];
115  uint64_t **score;
116  int nb_components;
118 } ThreadData;
119 
120 static
122  int jobnr, int nb_jobs)
123 {
124  ThreadData *td = arg;
125  uint64_t *score = td->score[jobnr];
126 
127  for (int c = 0; c < td->nb_components; c++) {
128  const int outw = td->planewidth[c];
129  const int outh = td->planeheight[c];
130  const int slice_start = (outh * jobnr) / nb_jobs;
131  const int slice_end = (outh * (jobnr+1)) / nb_jobs;
132  const int ref_linesize = td->ref_linesize[c];
133  const int main_linesize = td->main_linesize[c];
134  const uint8_t *main_line = td->main_data[c] + main_linesize * slice_start;
135  const uint8_t *ref_line = td->ref_data[c] + ref_linesize * slice_start;
136  uint64_t m = 0;
137  for (int i = slice_start; i < slice_end; i++) {
138  m += td->dsp->sse_line(main_line, ref_line, outw);
139  ref_line += ref_linesize;
140  main_line += main_linesize;
141  }
142  score[c] = m;
143  }
144 
145  return 0;
146 }
147 
148 static void set_meta(AVDictionary **metadata, const char *key, char comp, float d)
149 {
150  char value[128];
151  snprintf(value, sizeof(value), "%f", d);
152  if (comp) {
153  char key2[128];
154  snprintf(key2, sizeof(key2), "%s%c", key, comp);
155  av_dict_set(metadata, key2, value, 0);
156  } else {
157  av_dict_set(metadata, key, value, 0);
158  }
159 }
160 
161 static int do_psnr(FFFrameSync *fs)
162 {
163  AVFilterContext *ctx = fs->parent;
164  PSNRContext *s = ctx->priv;
165  AVFrame *master, *ref;
166  double comp_mse[4], mse = 0.;
167  uint64_t comp_sum[4] = { 0 };
168  AVDictionary **metadata;
169  ThreadData td;
170  int ret;
171 
173  if (ret < 0)
174  return ret;
175  if (ctx->is_disabled || !ref)
176  return ff_filter_frame(ctx->outputs[0], master);
177  metadata = &master->metadata;
178 
179  td.nb_components = s->nb_components;
180  td.dsp = &s->dsp;
181  td.score = s->score;
182  for (int c = 0; c < s->nb_components; c++) {
183  td.main_data[c] = master->data[c];
184  td.ref_data[c] = ref->data[c];
185  td.main_linesize[c] = master->linesize[c];
186  td.ref_linesize[c] = ref->linesize[c];
187  td.planewidth[c] = s->planewidth[c];
188  td.planeheight[c] = s->planeheight[c];
189  }
190 
192  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 = avpriv_fopen_utf8(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 
298 static const enum AVPixelFormat pix_fmts[] = {
300 #define PF_NOALPHA(suf) AV_PIX_FMT_YUV420##suf, AV_PIX_FMT_YUV422##suf, AV_PIX_FMT_YUV444##suf
301 #define PF_ALPHA(suf) AV_PIX_FMT_YUVA420##suf, AV_PIX_FMT_YUVA422##suf, AV_PIX_FMT_YUVA444##suf
302 #define PF(suf) PF_NOALPHA(suf), PF_ALPHA(suf)
303  PF(P), PF(P9), PF(P10), PF_NOALPHA(P12), PF_NOALPHA(P14), PF(P16),
311 };
312 
314 {
316  AVFilterContext *ctx = inlink->dst;
317  PSNRContext *s = ctx->priv;
318  double average_max;
319  unsigned sum;
320  int j;
321 
322  s->nb_threads = ff_filter_get_nb_threads(ctx);
323  s->nb_components = desc->nb_components;
324  if (ctx->inputs[0]->w != ctx->inputs[1]->w ||
325  ctx->inputs[0]->h != ctx->inputs[1]->h) {
326  av_log(ctx, AV_LOG_ERROR, "Width and height of input videos must be same.\n");
327  return AVERROR(EINVAL);
328  }
329 
330  s->max[0] = (1 << desc->comp[0].depth) - 1;
331  s->max[1] = (1 << desc->comp[1].depth) - 1;
332  s->max[2] = (1 << desc->comp[2].depth) - 1;
333  s->max[3] = (1 << desc->comp[3].depth) - 1;
334 
335  s->is_rgb = ff_fill_rgba_map(s->rgba_map, inlink->format) >= 0;
336  s->comps[0] = s->is_rgb ? 'r' : 'y' ;
337  s->comps[1] = s->is_rgb ? 'g' : 'u' ;
338  s->comps[2] = s->is_rgb ? 'b' : 'v' ;
339  s->comps[3] = 'a';
340 
341  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
342  s->planeheight[0] = s->planeheight[3] = inlink->h;
343  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
344  s->planewidth[0] = s->planewidth[3] = inlink->w;
345  sum = 0;
346  for (j = 0; j < s->nb_components; j++)
347  sum += s->planeheight[j] * s->planewidth[j];
348  average_max = 0;
349  for (j = 0; j < s->nb_components; j++) {
350  s->planeweight[j] = (double) s->planeheight[j] * s->planewidth[j] / sum;
351  average_max += s->max[j] * s->planeweight[j];
352  }
353  s->average_max = lrint(average_max);
354 
355  s->dsp.sse_line = desc->comp[0].depth > 8 ? sse_line_16bit : sse_line_8bit;
356 #if ARCH_X86
357  ff_psnr_init_x86(&s->dsp, desc->comp[0].depth);
358 #endif
359 
360  s->score = av_calloc(s->nb_threads, sizeof(*s->score));
361  if (!s->score)
362  return AVERROR(ENOMEM);
363 
364  for (int t = 0; t < s->nb_threads; t++) {
365  s->score[t] = av_calloc(s->nb_components, sizeof(*s->score[0]));
366  if (!s->score[t])
367  return AVERROR(ENOMEM);
368  }
369 
370  return 0;
371 }
372 
373 static int config_output(AVFilterLink *outlink)
374 {
375  AVFilterContext *ctx = outlink->src;
376  PSNRContext *s = ctx->priv;
377  AVFilterLink *mainlink = ctx->inputs[0];
378  int ret;
379 
381  if (ret < 0)
382  return ret;
383  outlink->w = mainlink->w;
384  outlink->h = mainlink->h;
385  outlink->time_base = mainlink->time_base;
386  outlink->sample_aspect_ratio = mainlink->sample_aspect_ratio;
387  outlink->frame_rate = mainlink->frame_rate;
388  if ((ret = ff_framesync_configure(&s->fs)) < 0)
389  return ret;
390 
391  outlink->time_base = s->fs.time_base;
392 
393  if (av_cmp_q(mainlink->time_base, outlink->time_base) ||
394  av_cmp_q(ctx->inputs[1]->time_base, outlink->time_base))
395  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",
396  mainlink->time_base.num, mainlink->time_base.den,
397  ctx->inputs[1]->time_base.num, ctx->inputs[1]->time_base.den);
398 
399  return 0;
400 }
401 
403 {
404  PSNRContext *s = ctx->priv;
405  return ff_framesync_activate(&s->fs);
406 }
407 
409 {
410  PSNRContext *s = ctx->priv;
411 
412  if (s->nb_frames > 0) {
413  int j;
414  char buf[256];
415 
416  buf[0] = 0;
417  for (j = 0; j < s->nb_components; j++) {
418  int c = s->is_rgb ? s->rgba_map[j] : j;
419  av_strlcatf(buf, sizeof(buf), " %c:%f", s->comps[j],
420  get_psnr(s->mse_comp[c], s->nb_frames, s->max[c]));
421  }
422  av_log(ctx, AV_LOG_INFO, "PSNR%s average:%f min:%f max:%f\n",
423  buf,
424  get_psnr(s->mse, s->nb_frames, s->average_max),
425  get_psnr(s->max_mse, 1, s->average_max),
426  get_psnr(s->min_mse, 1, s->average_max));
427  }
428 
429  ff_framesync_uninit(&s->fs);
430  for (int t = 0; t < s->nb_threads && s->score; t++)
431  av_freep(&s->score[t]);
432  av_freep(&s->score);
433 
434  if (s->stats_file && s->stats_file != stdout)
435  fclose(s->stats_file);
436 }
437 
438 static const AVFilterPad psnr_inputs[] = {
439  {
440  .name = "main",
441  .type = AVMEDIA_TYPE_VIDEO,
442  },{
443  .name = "reference",
444  .type = AVMEDIA_TYPE_VIDEO,
445  .config_props = config_input_ref,
446  },
447 };
448 
449 static const AVFilterPad psnr_outputs[] = {
450  {
451  .name = "default",
452  .type = AVMEDIA_TYPE_VIDEO,
453  .config_props = config_output,
454  },
455 };
456 
458  .name = "psnr",
459  .description = NULL_IF_CONFIG_SMALL("Calculate the PSNR between two video streams."),
460  .preinit = psnr_framesync_preinit,
461  .init = init,
462  .uninit = uninit,
463  .activate = activate,
464  .priv_size = sizeof(PSNRContext),
465  .priv_class = &psnr_class,
472 };
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:481
ff_framesync_configure
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:134
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:45
config_input_ref
static int config_input_ref(AVFilterLink *inlink)
Definition: vf_psnr.c:313
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
psnr
static double psnr(double d)
Definition: ffmpeg.c:741
PSNRContext::max_mse
double max_mse
Definition: vf_psnr.c:41
do_psnr
static int do_psnr(FFFrameSync *fs)
Definition: vf_psnr.c:161
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:148
PSNRContext::max
int max[4]
Definition: vf_psnr.c:48
ff_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:304
PSNRContext
Definition: vf_psnr.c:38
PSNRContext::planewidth
int planewidth[4]
Definition: vf_psnr.c:54
comp
static void comp(unsigned char *dst, ptrdiff_t dst_stride, unsigned char *src, ptrdiff_t src_stride, int add)
Definition: eamad.c:80
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1009
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2888
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:49
PSNRContext::stats_file_str
char * stats_file_str
Definition: vf_psnr.c:44
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:128
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:32
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:168
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_psnr.c:266
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:439
psnr_inputs
static const AVFilterPad psnr_inputs[]
Definition: vf_psnr.c:438
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:477
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:475
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:443
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:276
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:479
s
#define s(width, name)
Definition: cbs_vp9.c:256
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:480
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:2010
FRAMESYNC_DEFINE_CLASS
FRAMESYNC_DEFINE_CLASS(psnr, PSNRContext, fs)
PSNRContext::mse
double mse
Definition: vf_psnr.c:41
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:442
key
const char * key
Definition: hwcontext_opencl.c:174
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
file_open.h
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:440
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:478
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:51
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:64
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:474
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:84
PSNRContext::stats_header_written
int stats_header_written
Definition: vf_psnr.c:46
ThreadData::dsp
PSNRDSPContext * dsp
Definition: vf_psnr.c:117
PSNRContext::rgba_map
uint8_t rgba_map[4]
Definition: vf_psnr.c:50
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:95
psnr_outputs
static const AVFilterPad psnr_outputs[]
Definition: vf_psnr.c:449
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:115
ff_framesync_init_dualinput
int ff_framesync_init_dualinput(FFFrameSync *fs, AVFilterContext *parent)
Initialize a frame sync structure for dualinput.
Definition: framesync.c:372
master
const char * master
Definition: vf_curves.c:129
P
#define P
PSNRContext::nb_components
int nb_components
Definition: vf_psnr.c:52
PSNRContext::fs
FFFrameSync fs
Definition: vf_psnr.c:40
pow_2
static unsigned pow_2(unsigned base)
Definition: vf_psnr.c:74
PSNRContext::planeheight
int planeheight[4]
Definition: vf_psnr.c:55
for
for(k=2;k<=8;++k)
Definition: h264pred_template.c:425
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_psnr.c:408
PSNRContext::min_mse
double min_mse
Definition: vf_psnr.c:41
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_psnr.c:298
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:476
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:793
ThreadData
Used for passing data between threads.
Definition: dsddec.c:69
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_psnr.c:373
PSNRContext::mse_comp
double mse_comp[4]
Definition: vf_psnr.c:41
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:159
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:272
PSNRContext::planeweight
double planeweight[4]
Definition: vf_psnr.c:56
PSNRContext::average_max
int average_max
Definition: vf_psnr.c:48
PSNRContext::dsp
PSNRDSPContext dsp
Definition: vf_psnr.c:58
PSNRContext::stats_add_max
int stats_add_max
Definition: vf_psnr.c:47
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:53
framesync.h
get_psnr
static double get_psnr(double mse, uint64_t nb_frames, int max)
Definition: vf_psnr.c:79
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:402
AVFilterContext
An instance of a filter.
Definition: avfilter.h:415
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:86
FLAGS
#define FLAGS
Definition: vf_psnr.c:62
compute_images_mse
static int compute_images_mse(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_psnr.c:121
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: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: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:42
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:355
avstring.h
ff_framesync_dualinput_get
int ff_framesync_dualinput_get(FFFrameSync *fs, AVFrame **f0, AVFrame **f1)
Definition: framesync.c:390
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:441
drawutils.h
PSNRContext::stats_file
FILE * stats_file
Definition: vf_psnr.c:43
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:61
PSNRContext::score
uint64_t ** score
Definition: vf_psnr.c:57
ff_vf_psnr
const AVFilter ff_vf_psnr
Definition: vf_psnr.c:457
ThreadData::main_data
const uint8_t * main_data[4]
Definition: vf_identity.c:86