FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
vf_psnr.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2011 Roger Pau MonnĂ© <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 "dualinput.h"
33 #include "drawutils.h"
34 #include "formats.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;
52  char comps[4];
54  int planewidth[4];
55  int planeheight[4];
56  double planeweight[4];
58 } PSNRContext;
59 
60 #define OFFSET(x) offsetof(PSNRContext, x)
61 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
62 
63 static const AVOption psnr_options[] = {
64  {"stats_file", "Set file where to store per-frame difference information", OFFSET(stats_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
65  {"f", "Set file where to store per-frame difference information", OFFSET(stats_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
66  {"stats_version", "Set the format version for the stats file.", OFFSET(stats_version), AV_OPT_TYPE_INT, {.i64=1}, 1, 2, FLAGS },
67  {"output_max", "Add raw stats (max values) to the output log.", OFFSET(stats_add_max), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS},
68  { NULL }
69 };
70 
72 
73 static inline unsigned pow_2(unsigned base)
74 {
75  return base*base;
76 }
77 
78 static inline double get_psnr(double mse, uint64_t nb_frames, int max)
79 {
80  return 10.0 * log10(pow_2(max) / (mse / nb_frames));
81 }
82 
83 static uint64_t sse_line_8bit(const uint8_t *main_line, const uint8_t *ref_line, int outw)
84 {
85  int j;
86  unsigned m2 = 0;
87 
88  for (j = 0; j < outw; j++)
89  m2 += pow_2(main_line[j] - ref_line[j]);
90 
91  return m2;
92 }
93 
94 static uint64_t sse_line_16bit(const uint8_t *_main_line, const uint8_t *_ref_line, int outw)
95 {
96  int j;
97  uint64_t m2 = 0;
98  const uint16_t *main_line = (const uint16_t *) _main_line;
99  const uint16_t *ref_line = (const uint16_t *) _ref_line;
100 
101  for (j = 0; j < outw; j++)
102  m2 += pow_2(main_line[j] - ref_line[j]);
103 
104  return m2;
105 }
106 
107 static inline
109  const uint8_t *main_data[4], const int main_linesizes[4],
110  const uint8_t *ref_data[4], const int ref_linesizes[4],
111  int w, int h, double mse[4])
112 {
113  int i, c;
114 
115  for (c = 0; c < s->nb_components; c++) {
116  const int outw = s->planewidth[c];
117  const int outh = s->planeheight[c];
118  const uint8_t *main_line = main_data[c];
119  const uint8_t *ref_line = ref_data[c];
120  const int ref_linesize = ref_linesizes[c];
121  const int main_linesize = main_linesizes[c];
122  uint64_t m = 0;
123  for (i = 0; i < outh; i++) {
124  m += s->dsp.sse_line(main_line, ref_line, outw);
125  ref_line += ref_linesize;
126  main_line += main_linesize;
127  }
128  mse[c] = m / (double)(outw * outh);
129  }
130 }
131 
132 static void set_meta(AVDictionary **metadata, const char *key, char comp, float d)
133 {
134  char value[128];
135  snprintf(value, sizeof(value), "%0.2f", d);
136  if (comp) {
137  char key2[128];
138  snprintf(key2, sizeof(key2), "%s%c", key, comp);
139  av_dict_set(metadata, key2, value, 0);
140  } else {
141  av_dict_set(metadata, key, value, 0);
142  }
143 }
144 
146  const AVFrame *ref)
147 {
148  PSNRContext *s = ctx->priv;
149  double comp_mse[4], mse = 0;
150  int j, c;
151  AVDictionary **metadata = avpriv_frame_get_metadatap(main);
152 
153  compute_images_mse(s, (const uint8_t **)main->data, main->linesize,
154  (const uint8_t **)ref->data, ref->linesize,
155  main->width, main->height, comp_mse);
156 
157  for (j = 0; j < s->nb_components; j++)
158  mse += comp_mse[j] * s->planeweight[j];
159 
160  s->min_mse = FFMIN(s->min_mse, mse);
161  s->max_mse = FFMAX(s->max_mse, mse);
162 
163  s->mse += mse;
164  for (j = 0; j < s->nb_components; j++)
165  s->mse_comp[j] += comp_mse[j];
166  s->nb_frames++;
167 
168  for (j = 0; j < s->nb_components; j++) {
169  c = s->is_rgb ? s->rgba_map[j] : j;
170  set_meta(metadata, "lavfi.psnr.mse.", s->comps[j], comp_mse[c]);
171  set_meta(metadata, "lavfi.psnr.psnr.", s->comps[j], get_psnr(comp_mse[c], 1, s->max[c]));
172  }
173  set_meta(metadata, "lavfi.psnr.mse_avg", 0, mse);
174  set_meta(metadata, "lavfi.psnr.psnr_avg", 0, get_psnr(mse, 1, s->average_max));
175 
176  if (s->stats_file) {
177  if (s->stats_version == 2 && !s->stats_header_written) {
178  fprintf(s->stats_file, "psnr_log_version:2 fields:n");
179  fprintf(s->stats_file, ",mse_avg");
180  for (j = 0; j < s->nb_components; j++) {
181  fprintf(s->stats_file, ",mse_%c", s->comps[j]);
182  }
183  fprintf(s->stats_file, ",psnr_avg");
184  for (j = 0; j < s->nb_components; j++) {
185  fprintf(s->stats_file, ",psnr_%c", s->comps[j]);
186  }
187  if (s->stats_add_max) {
188  fprintf(s->stats_file, ",max_avg");
189  for (j = 0; j < s->nb_components; j++) {
190  fprintf(s->stats_file, ",max_%c", s->comps[j]);
191  }
192  }
193  fprintf(s->stats_file, "\n");
194  s->stats_header_written = 1;
195  }
196  fprintf(s->stats_file, "n:%"PRId64" mse_avg:%0.2f ", s->nb_frames, mse);
197  for (j = 0; j < s->nb_components; j++) {
198  c = s->is_rgb ? s->rgba_map[j] : j;
199  fprintf(s->stats_file, "mse_%c:%0.2f ", s->comps[j], comp_mse[c]);
200  }
201  fprintf(s->stats_file, "psnr_avg:%0.2f ", get_psnr(mse, 1, s->average_max));
202  for (j = 0; j < s->nb_components; j++) {
203  c = s->is_rgb ? s->rgba_map[j] : j;
204  fprintf(s->stats_file, "psnr_%c:%0.2f ", s->comps[j],
205  get_psnr(comp_mse[c], 1, s->max[c]));
206  }
207  if (s->stats_version == 2 && s->stats_add_max) {
208  fprintf(s->stats_file, "max_avg:%d ", s->average_max);
209  for (j = 0; j < s->nb_components; j++) {
210  c = s->is_rgb ? s->rgba_map[j] : j;
211  fprintf(s->stats_file, "max_%c:%d ", s->comps[j], s->max[c]);
212  }
213  }
214  fprintf(s->stats_file, "\n");
215  }
216 
217  return main;
218 }
219 
221 {
222  PSNRContext *s = ctx->priv;
223 
224  s->min_mse = +INFINITY;
225  s->max_mse = -INFINITY;
226 
227  if (s->stats_file_str) {
228  if (s->stats_version < 2 && s->stats_add_max) {
229  av_log(ctx, AV_LOG_ERROR,
230  "stats_add_max was specified but stats_version < 2.\n" );
231  return AVERROR(EINVAL);
232  }
233  if (!strcmp(s->stats_file_str, "-")) {
234  s->stats_file = stdout;
235  } else {
236  s->stats_file = fopen(s->stats_file_str, "w");
237  if (!s->stats_file) {
238  int err = AVERROR(errno);
239  char buf[128];
240  av_strerror(err, buf, sizeof(buf));
241  av_log(ctx, AV_LOG_ERROR, "Could not open stats file %s: %s\n",
242  s->stats_file_str, buf);
243  return err;
244  }
245  }
246  }
247 
248  s->dinput.process = do_psnr;
249  return 0;
250 }
251 
253 {
254  static const enum AVPixelFormat pix_fmts[] = {
256 #define PF_NOALPHA(suf) AV_PIX_FMT_YUV420##suf, AV_PIX_FMT_YUV422##suf, AV_PIX_FMT_YUV444##suf
257 #define PF_ALPHA(suf) AV_PIX_FMT_YUVA420##suf, AV_PIX_FMT_YUVA422##suf, AV_PIX_FMT_YUVA444##suf
258 #define PF(suf) PF_NOALPHA(suf), PF_ALPHA(suf)
259  PF(P), PF(P9), PF(P10), PF_NOALPHA(P12), PF_NOALPHA(P14), PF(P16),
267  };
268 
269  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
270  if (!fmts_list)
271  return AVERROR(ENOMEM);
272  return ff_set_common_formats(ctx, fmts_list);
273 }
274 
275 static int config_input_ref(AVFilterLink *inlink)
276 {
278  AVFilterContext *ctx = inlink->dst;
279  PSNRContext *s = ctx->priv;
280  double average_max;
281  unsigned sum;
282  int j;
283 
284  s->nb_components = desc->nb_components;
285  if (ctx->inputs[0]->w != ctx->inputs[1]->w ||
286  ctx->inputs[0]->h != ctx->inputs[1]->h) {
287  av_log(ctx, AV_LOG_ERROR, "Width and height of input videos must be same.\n");
288  return AVERROR(EINVAL);
289  }
290  if (ctx->inputs[0]->format != ctx->inputs[1]->format) {
291  av_log(ctx, AV_LOG_ERROR, "Inputs must be of same pixel format.\n");
292  return AVERROR(EINVAL);
293  }
294 
295  s->max[0] = (1 << desc->comp[0].depth) - 1;
296  s->max[1] = (1 << desc->comp[1].depth) - 1;
297  s->max[2] = (1 << desc->comp[2].depth) - 1;
298  s->max[3] = (1 << desc->comp[3].depth) - 1;
299 
300  s->is_rgb = ff_fill_rgba_map(s->rgba_map, inlink->format) >= 0;
301  s->comps[0] = s->is_rgb ? 'r' : 'y' ;
302  s->comps[1] = s->is_rgb ? 'g' : 'u' ;
303  s->comps[2] = s->is_rgb ? 'b' : 'v' ;
304  s->comps[3] = 'a';
305 
306  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
307  s->planeheight[0] = s->planeheight[3] = inlink->h;
308  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
309  s->planewidth[0] = s->planewidth[3] = inlink->w;
310  sum = 0;
311  for (j = 0; j < s->nb_components; j++)
312  sum += s->planeheight[j] * s->planewidth[j];
313  average_max = 0;
314  for (j = 0; j < s->nb_components; j++) {
315  s->planeweight[j] = (double) s->planeheight[j] * s->planewidth[j] / sum;
316  average_max += s->max[j] * s->planeweight[j];
317  }
318  s->average_max = lrint(average_max);
319 
320  s->dsp.sse_line = desc->comp[0].depth > 8 ? sse_line_16bit : sse_line_8bit;
321  if (ARCH_X86)
322  ff_psnr_init_x86(&s->dsp, desc->comp[0].depth);
323 
324  return 0;
325 }
326 
327 static int config_output(AVFilterLink *outlink)
328 {
329  AVFilterContext *ctx = outlink->src;
330  PSNRContext *s = ctx->priv;
331  AVFilterLink *mainlink = ctx->inputs[0];
332  int ret;
333 
334  outlink->w = mainlink->w;
335  outlink->h = mainlink->h;
336  outlink->time_base = mainlink->time_base;
337  outlink->sample_aspect_ratio = mainlink->sample_aspect_ratio;
338  outlink->frame_rate = mainlink->frame_rate;
339  if ((ret = ff_dualinput_init(ctx, &s->dinput)) < 0)
340  return ret;
341 
342  return 0;
343 }
344 
345 static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
346 {
347  PSNRContext *s = inlink->dst->priv;
348  return ff_dualinput_filter_frame(&s->dinput, inlink, inpicref);
349 }
350 
351 static int request_frame(AVFilterLink *outlink)
352 {
353  PSNRContext *s = outlink->src->priv;
354  return ff_dualinput_request_frame(&s->dinput, outlink);
355 }
356 
358 {
359  PSNRContext *s = ctx->priv;
360 
361  if (s->nb_frames > 0) {
362  int j;
363  char buf[256];
364 
365  buf[0] = 0;
366  for (j = 0; j < s->nb_components; j++) {
367  int c = s->is_rgb ? s->rgba_map[j] : j;
368  av_strlcatf(buf, sizeof(buf), " %c:%f", s->comps[j],
369  get_psnr(s->mse_comp[c], s->nb_frames, s->max[c]));
370  }
371  av_log(ctx, AV_LOG_INFO, "PSNR%s average:%f min:%f max:%f\n",
372  buf,
373  get_psnr(s->mse, s->nb_frames, s->average_max),
374  get_psnr(s->max_mse, 1, s->average_max),
375  get_psnr(s->min_mse, 1, s->average_max));
376  }
377 
379 
380  if (s->stats_file && s->stats_file != stdout)
381  fclose(s->stats_file);
382 }
383 
384 static const AVFilterPad psnr_inputs[] = {
385  {
386  .name = "main",
387  .type = AVMEDIA_TYPE_VIDEO,
388  .filter_frame = filter_frame,
389  },{
390  .name = "reference",
391  .type = AVMEDIA_TYPE_VIDEO,
392  .filter_frame = filter_frame,
393  .config_props = config_input_ref,
394  },
395  { NULL }
396 };
397 
398 static const AVFilterPad psnr_outputs[] = {
399  {
400  .name = "default",
401  .type = AVMEDIA_TYPE_VIDEO,
402  .config_props = config_output,
403  .request_frame = request_frame,
404  },
405  { NULL }
406 };
407 
409  .name = "psnr",
410  .description = NULL_IF_CONFIG_SMALL("Calculate the PSNR between two video streams."),
411  .init = init,
412  .uninit = uninit,
413  .query_formats = query_formats,
414  .priv_size = sizeof(PSNRContext),
415  .priv_class = &psnr_class,
416  .inputs = psnr_inputs,
417  .outputs = psnr_outputs,
418 };
double max_mse
Definition: vf_psnr.c:42
#define PF_NOALPHA(suf)
#define NULL
Definition: coverity.c:32
double mse_comp[4]
Definition: vf_psnr.c:42
const char * s
Definition: avisynth_c.h:768
#define P
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2333
int stats_version
Definition: vf_psnr.c:46
This structure describes decoded (raw) audio or video data.
Definition: frame.h:187
AVOption.
Definition: opt.h:246
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:60
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
int planewidth[4]
Definition: vf_psnr.c:54
static AVFrame * do_psnr(AVFilterContext *ctx, AVFrame *main, const AVFrame *ref)
Definition: vf_psnr.c:145
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:367
static uint64_t sse_line_8bit(const uint8_t *main_line, const uint8_t *ref_line, int outw)
Definition: vf_psnr.c:83
char * stats_file_str
Definition: vf_psnr.c:45
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
int max[4]
Definition: vf_psnr.c:49
static int request_frame(AVFilterLink *outlink)
Definition: vf_psnr.c:351
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:333
#define OFFSET(x)
Definition: vf_psnr.c:60
const char * name
Pad name.
Definition: internal.h:60
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:334
int ff_dualinput_filter_frame(FFDualInputContext *s, AVFilterLink *inlink, AVFrame *in)
Definition: dualinput.c:76
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:331
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
static double get_psnr(double mse, uint64_t nb_frames, int max)
Definition: vf_psnr.c:78
static void compute_images_mse(PSNRContext *s, const uint8_t *main_data[4], const int main_linesizes[4], const uint8_t *ref_data[4], const int ref_linesizes[4], int w, int h, double mse[4])
Definition: vf_psnr.c:108
AVOptions.
double min_mse
Definition: vf_psnr.c:42
#define PF(suf)
static double psnr(double d)
Definition: ffmpeg.c:1355
static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
Definition: vf_psnr.c:345
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:366
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
void ff_dualinput_uninit(FFDualInputContext *s)
Definition: dualinput.c:87
#define av_log(a,...)
int is_rgb
Definition: vf_psnr.c:50
A filter pad used for either input or output.
Definition: internal.h:54
int width
width and height of the video frame
Definition: frame.h:239
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
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:568
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
int stats_add_max
Definition: vf_psnr.c:48
#define AVERROR(e)
Definition: error.h:43
uint8_t rgba_map[4]
Definition: vf_psnr.c:51
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
static int config_input_ref(AVFilterLink *inlink)
Definition: vf_psnr.c:275
void * priv
private data for use by the filter
Definition: avfilter.h:338
FFDualInputContext dinput
Definition: vf_psnr.c:41
#define FFMAX(a, b)
Definition: common.h:94
char comps[4]
Definition: vf_psnr.c:52
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_psnr.c:357
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:373
int stats_header_written
Definition: vf_psnr.c:47
int planeheight[4]
Definition: vf_psnr.c:55
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:370
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:335
static unsigned pow_2(unsigned base)
Definition: vf_psnr.c:73
#define FFMIN(a, b)
Definition: common.h:96
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
static void set_meta(AVDictionary **metadata, const char *key, char comp, float d)
Definition: vf_psnr.c:132
GLsizei GLboolean const GLfloat * value
Definition: opengl_enc.c:109
static int config_output(AVFilterLink *outlink)
Definition: vf_psnr.c:327
AVFormatContext * ctx
Definition: movenc.c:48
uint64_t nb_frames
Definition: vf_psnr.c:43
static av_cold int init(AVFilterContext *ctx)
Definition: vf_psnr.c:220
AVFrame *(* process)(AVFilterContext *ctx, AVFrame *main, const AVFrame *second)
Definition: dualinput.h:35
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
uint64_t(* sse_line)(const uint8_t *buf, const uint8_t *ref, int w)
Definition: psnr.h:28
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:369
PSNRDSPContext dsp
Definition: vf_psnr.c:57
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Definition: drawutils.c:35
#define INFINITY
Definition: math.h:27
static void comp(unsigned char *dst, ptrdiff_t dst_stride, unsigned char *src, ptrdiff_t src_stride, int add)
Definition: eamad.c:83
FILE * stats_file
Definition: vf_psnr.c:44
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
#define FLAGS
Definition: vf_psnr.c:61
misc drawing utilities
AVDictionary ** avpriv_frame_get_metadatap(AVFrame *frame)
Definition: frame.c:51
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:218
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
void * buf
Definition: avisynth_c.h:690
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
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:101
const char * name
Filter name.
Definition: avfilter.h:148
#define snprintf
Definition: snprintf.h:34
int ff_dualinput_init(AVFilterContext *ctx, FFDualInputContext *s)
Definition: dualinput.c:43
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:368
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:201
double mse
Definition: vf_psnr.c:42
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
static const AVFilterPad psnr_inputs[]
Definition: vf_psnr.c:384
double planeweight[4]
Definition: vf_psnr.c:56
Y , 8bpp.
Definition: pixfmt.h:70
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:229
static double c[64]
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
static const AVFilterPad psnr_outputs[]
Definition: vf_psnr.c:398
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
static const AVOption psnr_options[]
Definition: vf_psnr.c:63
int nb_components
Definition: vf_psnr.c:53
static int query_formats(AVFilterContext *ctx)
Definition: vf_psnr.c:252
Double input streams helper for filters.
AVFILTER_DEFINE_CLASS(psnr)
A list of supported formats for one end of a filter link.
Definition: formats.h:64
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:272
#define lrint
Definition: tablegen.h:53
An instance of a filter.
Definition: avfilter.h:323
int ff_dualinput_request_frame(FFDualInputContext *s, AVFilterLink *outlink)
Definition: dualinput.c:82
static uint64_t sse_line_16bit(const uint8_t *_main_line, const uint8_t *_ref_line, int outw)
Definition: vf_psnr.c:94
AVFilter ff_vf_psnr
Definition: vf_psnr.c:408
int height
Definition: frame.h:239
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:100
void ff_psnr_init_x86(PSNRDSPContext *dsp, int bpp)
Definition: vf_psnr_init.c:28
int main(int argc, char **argv)
Definition: main.c:22
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
for(j=16;j >0;--j)
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
int average_max
Definition: vf_psnr.c:49