FFmpeg  4.3
swscale.c
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1 /*
2  * Copyright (C) 2003-2011 Michael Niedermayer <michaelni@gmx.at>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <inttypes.h>
25 #include <stdarg.h>
26 
27 #undef HAVE_AV_CONFIG_H
28 #include "libavutil/cpu.h"
29 #include "libavutil/imgutils.h"
30 #include "libavutil/mem.h"
31 #include "libavutil/avutil.h"
32 #include "libavutil/crc.h"
33 #include "libavutil/pixdesc.h"
34 #include "libavutil/lfg.h"
35 
36 #include "libswscale/swscale.h"
37 
38 /* HACK Duplicated from swscale_internal.h.
39  * Should be removed when a cleaner pixel format system exists. */
40 #define isGray(x) \
41  ((x) == AV_PIX_FMT_GRAY8 || \
42  (x) == AV_PIX_FMT_YA8 || \
43  (x) == AV_PIX_FMT_GRAY16BE || \
44  (x) == AV_PIX_FMT_GRAY16LE || \
45  (x) == AV_PIX_FMT_YA16BE || \
46  (x) == AV_PIX_FMT_YA16LE)
47 #define hasChroma(x) \
48  (!(isGray(x) || \
49  (x) == AV_PIX_FMT_MONOBLACK || \
50  (x) == AV_PIX_FMT_MONOWHITE))
51 #define isALPHA(x) \
52  ((x) == AV_PIX_FMT_BGR32 || \
53  (x) == AV_PIX_FMT_BGR32_1 || \
54  (x) == AV_PIX_FMT_RGB32 || \
55  (x) == AV_PIX_FMT_RGB32_1 || \
56  (x) == AV_PIX_FMT_YUVA420P)
57 
58 static uint64_t getSSD(const uint8_t *src1, const uint8_t *src2,
59  int stride1, int stride2, int w, int h)
60 {
61  int x, y;
62  uint64_t ssd = 0;
63 
64  for (y = 0; y < h; y++) {
65  for (x = 0; x < w; x++) {
66  int d = src1[x + y * stride1] - src2[x + y * stride2];
67  ssd += d * d;
68  }
69  }
70  return ssd;
71 }
72 
73 struct Results {
74  uint64_t ssdY;
75  uint64_t ssdU;
76  uint64_t ssdV;
77  uint64_t ssdA;
78  uint32_t crc;
79 };
80 
81 // test by ref -> src -> dst -> out & compare out against ref
82 // ref & out are YV12
83 static int doTest(const uint8_t * const ref[4], int refStride[4], int w, int h,
84  enum AVPixelFormat srcFormat, enum AVPixelFormat dstFormat,
85  int srcW, int srcH, int dstW, int dstH, int flags,
86  struct Results *r)
87 {
89  const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(srcFormat);
90  const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(dstFormat);
91  static enum AVPixelFormat cur_srcFormat;
92  static int cur_srcW, cur_srcH;
93  static const uint8_t *src[4];
94  static int srcStride[4];
95  uint8_t *dst[4] = { 0 };
96  uint8_t *out[4] = { 0 };
97  int dstStride[4] = {0};
98  int i;
99  uint64_t ssdY, ssdU = 0, ssdV = 0, ssdA = 0;
100  struct SwsContext *dstContext = NULL, *outContext = NULL;
101  uint32_t crc = 0;
102  int res = 0;
103 
104  if (cur_srcFormat != srcFormat || cur_srcW != srcW || cur_srcH != srcH) {
105  struct SwsContext *srcContext = NULL;
106  int p;
107 
108  for (p = 0; p < 4; p++)
109  av_freep(&src[p]);
110 
111  res = av_image_fill_linesizes(srcStride, srcFormat, srcW);
112  if (res < 0) {
113  fprintf(stderr, "av_image_fill_linesizes failed\n");
114  goto end;
115  }
116  for (p = 0; p < 4; p++) {
117  srcStride[p] = FFALIGN(srcStride[p], 16);
118  if (srcStride[p])
119  src[p] = av_mallocz(srcStride[p] * srcH + 16);
120  if (srcStride[p] && !src[p]) {
121  perror("Malloc");
122  res = -1;
123  goto end;
124  }
125  }
126  srcContext = sws_getContext(w, h, AV_PIX_FMT_YUVA420P, srcW, srcH,
128  if (!srcContext) {
129  fprintf(stderr, "Failed to get %s ---> %s\n",
130  desc_yuva420p->name,
131  desc_src->name);
132  res = -1;
133  goto end;
134  }
135  sws_scale(srcContext, ref, refStride, 0, h,
136  (uint8_t * const *) src, srcStride);
137  sws_freeContext(srcContext);
138 
139  cur_srcFormat = srcFormat;
140  cur_srcW = srcW;
141  cur_srcH = srcH;
142  }
143 
144  res = av_image_fill_linesizes(dstStride, dstFormat, dstW);
145  if (res < 0) {
146  fprintf(stderr, "av_image_fill_linesizes failed\n");
147  goto end;
148  }
149 
150  for (i = 0; i < 4; i++) {
151  /* Image buffers passed into libswscale can be allocated any way you
152  * prefer, as long as they're aligned enough for the architecture, and
153  * they're freed appropriately (such as using av_free for buffers
154  * allocated with av_malloc). */
155  /* An extra 16 bytes is being allocated because some scalers may write
156  * out of bounds. */
157  dstStride[i] = FFALIGN(dstStride[i], 16);
158  if (dstStride[i])
159  dst[i] = av_mallocz(dstStride[i] * dstH + 16);
160  if (dstStride[i] && !dst[i]) {
161  perror("Malloc");
162  res = -1;
163 
164  goto end;
165  }
166  }
167 
168  dstContext = sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat,
169  flags, NULL, NULL, NULL);
170  if (!dstContext) {
171  fprintf(stderr, "Failed to get %s ---> %s\n",
172  desc_src->name, desc_dst->name);
173  res = -1;
174  goto end;
175  }
176 
177  printf(" %s %dx%d -> %s %3dx%3d flags=%2d",
178  desc_src->name, srcW, srcH,
179  desc_dst->name, dstW, dstH,
180  flags);
181  fflush(stdout);
182 
183  sws_scale(dstContext, (const uint8_t * const*)src, srcStride, 0, srcH, dst, dstStride);
184 
185  for (i = 0; i < 4 && dstStride[i]; i++)
186  crc = av_crc(av_crc_get_table(AV_CRC_32_IEEE), crc, dst[i],
187  dstStride[i] * dstH);
188 
189  if (r && crc == r->crc) {
190  ssdY = r->ssdY;
191  ssdU = r->ssdU;
192  ssdV = r->ssdV;
193  ssdA = r->ssdA;
194  } else {
195  for (i = 0; i < 4; i++) {
196  refStride[i] = FFALIGN(refStride[i], 16);
197  if (refStride[i])
198  out[i] = av_mallocz(refStride[i] * h);
199  if (refStride[i] && !out[i]) {
200  perror("Malloc");
201  res = -1;
202  goto end;
203  }
204  }
205  outContext = sws_getContext(dstW, dstH, dstFormat, w, h,
207  NULL, NULL, NULL);
208  if (!outContext) {
209  fprintf(stderr, "Failed to get %s ---> %s\n",
210  desc_dst->name,
211  desc_yuva420p->name);
212  res = -1;
213  goto end;
214  }
215  sws_scale(outContext, (const uint8_t * const *) dst, dstStride, 0, dstH,
216  out, refStride);
217 
218  ssdY = getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
220  //FIXME check that output is really gray
221  ssdU = getSSD(ref[1], out[1], refStride[1], refStride[1],
222  (w + 1) >> 1, (h + 1) >> 1);
223  ssdV = getSSD(ref[2], out[2], refStride[2], refStride[2],
224  (w + 1) >> 1, (h + 1) >> 1);
225  }
227  ssdA = getSSD(ref[3], out[3], refStride[3], refStride[3], w, h);
228 
229  ssdY /= w * h;
230  ssdU /= w * h / 4;
231  ssdV /= w * h / 4;
232  ssdA /= w * h;
233 
234  sws_freeContext(outContext);
235 
236  for (i = 0; i < 4; i++)
237  if (refStride[i])
238  av_free(out[i]);
239  }
240 
241  printf(" CRC=%08x SSD=%5"PRId64 ",%5"PRId64 ",%5"PRId64 ",%5"PRId64 "\n",
242  crc, ssdY, ssdU, ssdV, ssdA);
243 
244 end:
245  sws_freeContext(dstContext);
246 
247  for (i = 0; i < 4; i++)
248  if (dstStride[i])
249  av_free(dst[i]);
250 
251  return res;
252 }
253 
254 static void selfTest(const uint8_t * const ref[4], int refStride[4],
255  int w, int h,
256  enum AVPixelFormat srcFormat_in,
257  enum AVPixelFormat dstFormat_in)
258 {
260  SWS_X, SWS_POINT, SWS_AREA, 0 };
261  const int srcW = w;
262  const int srcH = h;
263  const int dstW[] = { srcW - srcW / 3, srcW, srcW + srcW / 3, 0 };
264  const int dstH[] = { srcH - srcH / 3, srcH, srcH + srcH / 3, 0 };
266  const AVPixFmtDescriptor *desc_src, *desc_dst;
267 
268  for (srcFormat = srcFormat_in != AV_PIX_FMT_NONE ? srcFormat_in : 0;
272  continue;
273 
274  desc_src = av_pix_fmt_desc_get(srcFormat);
275 
276  for (dstFormat = dstFormat_in != AV_PIX_FMT_NONE ? dstFormat_in : 0;
278  int i, j, k;
279  int res = 0;
280 
283  continue;
284 
285  desc_dst = av_pix_fmt_desc_get(dstFormat);
286 
287  printf("%s -> %s\n", desc_src->name, desc_dst->name);
288  fflush(stdout);
289 
290  for (k = 0; flags[k] && !res; k++)
291  for (i = 0; dstW[i] && !res; i++)
292  for (j = 0; dstH[j] && !res; j++)
293  res = doTest(ref, refStride, w, h,
295  srcW, srcH, dstW[i], dstH[j], flags[k],
296  NULL);
297  if (dstFormat_in != AV_PIX_FMT_NONE)
298  break;
299  }
300  if (srcFormat_in != AV_PIX_FMT_NONE)
301  break;
302  }
303 }
304 
305 static int fileTest(const uint8_t * const ref[4], int refStride[4],
306  int w, int h, FILE *fp,
307  enum AVPixelFormat srcFormat_in,
308  enum AVPixelFormat dstFormat_in)
309 {
310  char buf[256];
311 
312  while (fgets(buf, sizeof(buf), fp)) {
313  struct Results r;
314  enum AVPixelFormat srcFormat;
315  char srcStr[21];
316  int srcW = 0, srcH = 0;
317  enum AVPixelFormat dstFormat;
318  char dstStr[21];
319  int dstW = 0, dstH = 0;
320  int flags;
321  int ret;
322 
323  ret = sscanf(buf,
324  " %20s %dx%d -> %20s %dx%d flags=%d CRC=%x"
325  " SSD=%"SCNu64 ", %"SCNu64 ", %"SCNu64 ", %"SCNu64 "\n",
326  srcStr, &srcW, &srcH, dstStr, &dstW, &dstH,
327  &flags, &r.crc, &r.ssdY, &r.ssdU, &r.ssdV, &r.ssdA);
328  if (ret != 12) {
329  srcStr[0] = dstStr[0] = 0;
330  ret = sscanf(buf, "%20s -> %20s\n", srcStr, dstStr);
331  }
332 
333  srcFormat = av_get_pix_fmt(srcStr);
334  dstFormat = av_get_pix_fmt(dstStr);
335 
336  if (srcFormat == AV_PIX_FMT_NONE || dstFormat == AV_PIX_FMT_NONE ||
337  srcW > 8192U || srcH > 8192U || dstW > 8192U || dstH > 8192U) {
338  fprintf(stderr, "malformed input file\n");
339  return -1;
340  }
341  if ((srcFormat_in != AV_PIX_FMT_NONE && srcFormat_in != srcFormat) ||
342  (dstFormat_in != AV_PIX_FMT_NONE && dstFormat_in != dstFormat))
343  continue;
344  if (ret != 12) {
345  printf("%s", buf);
346  continue;
347  }
348 
349  doTest(ref, refStride, w, h,
350  srcFormat, dstFormat,
351  srcW, srcH, dstW, dstH, flags,
352  &r);
353  }
354 
355  return 0;
356 }
357 
358 #define W 96
359 #define H 96
360 
361 int main(int argc, char **argv)
362 {
363  enum AVPixelFormat srcFormat = AV_PIX_FMT_NONE;
364  enum AVPixelFormat dstFormat = AV_PIX_FMT_NONE;
365  uint8_t *rgb_data = av_malloc(W * H * 4);
366  const uint8_t * const rgb_src[4] = { rgb_data, NULL, NULL, NULL };
367  int rgb_stride[4] = { 4 * W, 0, 0, 0 };
368  uint8_t *data = av_malloc(4 * W * H);
369  const uint8_t * const src[4] = { data, data + W * H, data + W * H * 2, data + W * H * 3 };
370  int stride[4] = { W, W, W, W };
371  int x, y;
372  struct SwsContext *sws;
373  AVLFG rand;
374  int res = -1;
375  int i;
376  FILE *fp = NULL;
377 
378  if (!rgb_data || !data)
379  return -1;
380 
381  for (i = 1; i < argc; i += 2) {
382  if (argv[i][0] != '-' || i + 1 == argc)
383  goto bad_option;
384  if (!strcmp(argv[i], "-ref")) {
385  fp = fopen(argv[i + 1], "r");
386  if (!fp) {
387  fprintf(stderr, "could not open '%s'\n", argv[i + 1]);
388  goto error;
389  }
390  } else if (!strcmp(argv[i], "-cpuflags")) {
391  unsigned flags = av_get_cpu_flags();
392  int ret = av_parse_cpu_caps(&flags, argv[i + 1]);
393  if (ret < 0) {
394  fprintf(stderr, "invalid cpu flags %s\n", argv[i + 1]);
395  return ret;
396  }
398  } else if (!strcmp(argv[i], "-src")) {
399  srcFormat = av_get_pix_fmt(argv[i + 1]);
400  if (srcFormat == AV_PIX_FMT_NONE) {
401  fprintf(stderr, "invalid pixel format %s\n", argv[i + 1]);
402  return -1;
403  }
404  } else if (!strcmp(argv[i], "-dst")) {
405  dstFormat = av_get_pix_fmt(argv[i + 1]);
406  if (dstFormat == AV_PIX_FMT_NONE) {
407  fprintf(stderr, "invalid pixel format %s\n", argv[i + 1]);
408  return -1;
409  }
410  } else {
411 bad_option:
412  fprintf(stderr, "bad option or argument missing (%s)\n", argv[i]);
413  goto error;
414  }
415  }
416 
417  sws = sws_getContext(W / 12, H / 12, AV_PIX_FMT_RGB32, W, H,
419 
420  av_lfg_init(&rand, 1);
421 
422  for (y = 0; y < H; y++)
423  for (x = 0; x < W * 4; x++)
424  rgb_data[ x + y * 4 * W] = av_lfg_get(&rand);
425  sws_scale(sws, rgb_src, rgb_stride, 0, H / 12, (uint8_t * const *) src, stride);
426  sws_freeContext(sws);
427  av_free(rgb_data);
428 
429  if(fp) {
430  res = fileTest(src, stride, W, H, fp, srcFormat, dstFormat);
431  fclose(fp);
432  } else {
434  res = 0;
435  }
436 error:
437  av_free(data);
438 
439  return res;
440 }
error
static void error(const char *err)
Definition: target_bsf_fuzzer.c:29
av_force_cpu_flags
void av_force_cpu_flags(int arg)
Disables cpu detection and forces the specified flags.
Definition: cpu.c:65
stride
int stride
Definition: mace.c:144
sws_isSupportedOutput
#define sws_isSupportedOutput(x)
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
sws_isSupportedInput
#define sws_isSupportedInput(x)
SwsContext::dstW
int dstW
Width of destination luma/alpha planes.
Definition: swscale_internal.h:478
out
FILE * out
Definition: movenc.c:54
av_lfg_init
av_cold void av_lfg_init(AVLFG *c, unsigned int seed)
Definition: lfg.c:32
selfTest
static void selfTest(const uint8_t *const ref[4], int refStride[4], int w, int h, enum AVPixelFormat srcFormat_in, enum AVPixelFormat dstFormat_in)
Definition: swscale.c:254
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2549
end
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
Results::crc
uint32_t crc
Definition: swscale.c:78
pixdesc.h
W
#define W
Definition: swscale.c:358
AVPixFmtDescriptor::name
const char * name
Definition: pixdesc.h:82
Results::ssdA
uint64_t ssdA
Definition: swscale.c:77
data
const char data[16]
Definition: mxf.c:91
sws_scale
int attribute_align_arg sws_scale(struct SwsContext *c, const uint8_t *const srcSlice[], const int srcStride[], int srcSliceY, int srcSliceH, uint8_t *const dst[], const int dstStride[])
swscale wrapper, so we don't need to export the SwsContext.
Definition: swscale.c:744
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:93
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:31
AV_PIX_FMT_NB
@ AV_PIX_FMT_NB
number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of...
Definition: pixfmt.h:361
crc.h
SWS_FAST_BILINEAR
#define SWS_FAST_BILINEAR
Definition: swscale.h:58
U
#define U(x)
Definition: vp56_arith.h:37
x
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo x
Definition: fate.txt:150
av_parse_cpu_caps
int av_parse_cpu_caps(unsigned *flags, const char *s)
Parse CPU caps from a string and update the given AV_CPU_* flags based on that.
Definition: cpu.c:191
hasChroma
#define hasChroma(x)
Definition: swscale.c:47
SWS_POINT
#define SWS_POINT
Definition: swscale.h:62
Results::ssdU
uint64_t ssdU
Definition: swscale.c:75
SwsContext::srcFormat
enum AVPixelFormat srcFormat
Source pixel format.
Definition: swscale_internal.h:301
av_image_fill_linesizes
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
Definition: imgutils.c:89
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
av_lfg_get
static unsigned int av_lfg_get(AVLFG *c)
Get the next random unsigned 32-bit number using an ALFG.
Definition: lfg.h:53
lfg.h
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:237
getSSD
static uint64_t getSSD(const uint8_t *src1, const uint8_t *src2, int stride1, int stride2, int w, int h)
Definition: swscale.c:58
SwsContext::dstFormat
enum AVPixelFormat dstFormat
Destination pixel format.
Definition: swscale_internal.h:300
Results
Definition: swscale.c:73
NULL
#define NULL
Definition: coverity.c:32
Results::ssdV
uint64_t ssdV
Definition: swscale.c:76
src
#define src
Definition: vp8dsp.c:254
H
#define H
Definition: swscale.c:359
fp
#define fp
Definition: regdef.h:44
SWS_X
#define SWS_X
Definition: swscale.h:61
doTest
static int doTest(const uint8_t *const ref[4], int refStride[4], int w, int h, enum AVPixelFormat srcFormat, enum AVPixelFormat dstFormat, int srcW, int srcH, int dstW, int dstH, int flags, struct Results *r)
Definition: swscale.c:83
AVLFG
Context structure for the Lagged Fibonacci PRNG.
Definition: lfg.h:33
sws_getContext
struct SwsContext * sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
Allocate and return an SwsContext.
Definition: utils.c:1899
cpu.h
SwsContext::srcH
int srcH
Height of source luma/alpha planes.
Definition: swscale_internal.h:292
printf
printf("static const uint8_t my_array[100] = {\n")
AV_PIX_FMT_RGB32
#define AV_PIX_FMT_RGB32
Definition: pixfmt.h:370
av_crc_get_table
const AVCRC * av_crc_get_table(AVCRCId crc_id)
Get an initialized standard CRC table.
Definition: crc.c:374
isALPHA
#define isALPHA(x)
Definition: swscale.c:51
r
#define r
Definition: input.c:40
src1
#define src1
Definition: h264pred.c:139
SwsContext::srcW
int srcW
Width of source luma/alpha planes.
Definition: swscale_internal.h:291
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
uint8_t
uint8_t
Definition: audio_convert.c:194
AV_CRC_32_IEEE
@ AV_CRC_32_IEEE
Definition: crc.h:53
ret
ret
Definition: filter_design.txt:187
w
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo ug o o w
Definition: fate.txt:150
av_get_pix_fmt
enum AVPixelFormat av_get_pix_fmt(const char *name)
Return the pixel format corresponding to name.
Definition: pixdesc.c:2477
Results::ssdY
uint64_t ssdY
Definition: swscale.c:74
main
int main(int argc, char **argv)
Definition: swscale.c:361
sws_freeContext
void sws_freeContext(struct SwsContext *swsContext)
Free the swscaler context swsContext.
Definition: utils.c:2319
av_crc
uint32_t av_crc(const AVCRC *ctx, uint32_t crc, const uint8_t *buffer, size_t length)
Calculate the CRC of a block.
Definition: crc.c:392
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
ref
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
avutil.h
mem.h
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
av_free
#define av_free(p)
Definition: tableprint_vlc.h:34
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:48
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:564
fileTest
static int fileTest(const uint8_t *const ref[4], int refStride[4], int w, int h, FILE *fp, enum AVPixelFormat srcFormat_in, enum AVPixelFormat dstFormat_in)
Definition: swscale.c:305
h
h
Definition: vp9dsp_template.c:2038
SWS_BILINEAR
#define SWS_BILINEAR
Definition: swscale.h:59
SWS_AREA
#define SWS_AREA
Definition: swscale.h:63
SwsContext
Definition: swscale_internal.h:280
SwsContext::dstH
int dstH
Height of destination luma/alpha planes.
Definition: swscale_internal.h:293
SWS_BICUBIC
#define SWS_BICUBIC
Definition: swscale.h:60
swscale.h