WebM Codec SDK
vpxdec
1 /*
2  * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3  *
4  * Use of this source code is governed by a BSD-style license
5  * that can be found in the LICENSE file in the root of the source
6  * tree. An additional intellectual property rights grant can be found
7  * in the file PATENTS. All contributing project authors may
8  * be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #include <assert.h>
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <stdarg.h>
15 #include <string.h>
16 #include <limits.h>
17 
18 #include "./vpx_config.h"
19 
20 #if CONFIG_LIBYUV
21 #include "third_party/libyuv/include/libyuv/scale.h"
22 #endif
23 
24 #include "./args.h"
25 #include "./ivfdec.h"
26 
27 #include "vpx/vpx_decoder.h"
28 #include "vpx_ports/mem_ops.h"
29 #include "vpx_ports/vpx_timer.h"
30 
31 #if CONFIG_VP8_DECODER || CONFIG_VP9_DECODER
32 #include "vpx/vp8dx.h"
33 #endif
34 
35 #include "./md5_utils.h"
36 
37 #include "./tools_common.h"
38 #if CONFIG_WEBM_IO
39 #include "./webmdec.h"
40 #endif
41 #include "./y4menc.h"
42 
43 static const char *exec_name;
44 
45 struct VpxDecInputContext {
46  struct VpxInputContext *vpx_input_ctx;
47  struct WebmInputContext *webm_ctx;
48 };
49 
50 static const arg_def_t looparg = ARG_DEF(
51  NULL, "loops", 1, "Number of times to decode the file");
52 static const arg_def_t codecarg = ARG_DEF(
53  NULL, "codec", 1, "Codec to use");
54 static const arg_def_t use_yv12 = ARG_DEF(
55  NULL, "yv12", 0, "Output raw YV12 frames");
56 static const arg_def_t use_i420 = ARG_DEF(
57  NULL, "i420", 0, "Output raw I420 frames");
58 static const arg_def_t flipuvarg = ARG_DEF(
59  NULL, "flipuv", 0, "Flip the chroma planes in the output");
60 static const arg_def_t rawvideo = ARG_DEF(
61  NULL, "rawvideo", 0, "Output raw YUV frames");
62 static const arg_def_t noblitarg = ARG_DEF(
63  NULL, "noblit", 0, "Don't process the decoded frames");
64 static const arg_def_t progressarg = ARG_DEF(
65  NULL, "progress", 0, "Show progress after each frame decodes");
66 static const arg_def_t limitarg = ARG_DEF(
67  NULL, "limit", 1, "Stop decoding after n frames");
68 static const arg_def_t skiparg = ARG_DEF(
69  NULL, "skip", 1, "Skip the first n input frames");
70 static const arg_def_t postprocarg = ARG_DEF(
71  NULL, "postproc", 0, "Postprocess decoded frames");
72 static const arg_def_t summaryarg = ARG_DEF(
73  NULL, "summary", 0, "Show timing summary");
74 static const arg_def_t outputfile = ARG_DEF(
75  "o", "output", 1, "Output file name pattern (see below)");
76 static const arg_def_t threadsarg = ARG_DEF(
77  "t", "threads", 1, "Max threads to use");
78 static const arg_def_t frameparallelarg = ARG_DEF(
79  NULL, "frame-parallel", 0, "Frame parallel decode");
80 static const arg_def_t verbosearg = ARG_DEF(
81  "v", "verbose", 0, "Show version string");
82 static const arg_def_t error_concealment = ARG_DEF(
83  NULL, "error-concealment", 0, "Enable decoder error-concealment");
84 static const arg_def_t scalearg = ARG_DEF(
85  "S", "scale", 0, "Scale output frames uniformly");
86 static const arg_def_t continuearg = ARG_DEF(
87  "k", "keep-going", 0, "(debug) Continue decoding after error");
88 static const arg_def_t fb_arg = ARG_DEF(
89  NULL, "frame-buffers", 1, "Number of frame buffers to use");
90 static const arg_def_t md5arg = ARG_DEF(
91  NULL, "md5", 0, "Compute the MD5 sum of the decoded frame");
92 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
93 static const arg_def_t outbitdeptharg = ARG_DEF(
94  NULL, "output-bit-depth", 1, "Output bit-depth for decoded frames");
95 #endif
96 
97 static const arg_def_t *all_args[] = {
98  &codecarg, &use_yv12, &use_i420, &flipuvarg, &rawvideo, &noblitarg,
99  &progressarg, &limitarg, &skiparg, &postprocarg, &summaryarg, &outputfile,
100  &threadsarg, &frameparallelarg, &verbosearg, &scalearg, &fb_arg,
101  &md5arg, &error_concealment, &continuearg,
102 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
103  &outbitdeptharg,
104 #endif
105  NULL
106 };
107 
108 #if CONFIG_VP8_DECODER
109 static const arg_def_t addnoise_level = ARG_DEF(
110  NULL, "noise-level", 1, "Enable VP8 postproc add noise");
111 static const arg_def_t deblock = ARG_DEF(
112  NULL, "deblock", 0, "Enable VP8 deblocking");
113 static const arg_def_t demacroblock_level = ARG_DEF(
114  NULL, "demacroblock-level", 1, "Enable VP8 demacroblocking, w/ level");
115 static const arg_def_t pp_debug_info = ARG_DEF(
116  NULL, "pp-debug-info", 1, "Enable VP8 visible debug info");
117 static const arg_def_t pp_disp_ref_frame = ARG_DEF(
118  NULL, "pp-dbg-ref-frame", 1,
119  "Display only selected reference frame per macro block");
120 static const arg_def_t pp_disp_mb_modes = ARG_DEF(
121  NULL, "pp-dbg-mb-modes", 1, "Display only selected macro block modes");
122 static const arg_def_t pp_disp_b_modes = ARG_DEF(
123  NULL, "pp-dbg-b-modes", 1, "Display only selected block modes");
124 static const arg_def_t pp_disp_mvs = ARG_DEF(
125  NULL, "pp-dbg-mvs", 1, "Draw only selected motion vectors");
126 static const arg_def_t mfqe = ARG_DEF(
127  NULL, "mfqe", 0, "Enable multiframe quality enhancement");
128 
129 static const arg_def_t *vp8_pp_args[] = {
130  &addnoise_level, &deblock, &demacroblock_level, &pp_debug_info,
131  &pp_disp_ref_frame, &pp_disp_mb_modes, &pp_disp_b_modes, &pp_disp_mvs, &mfqe,
132  NULL
133 };
134 #endif
135 
136 #if CONFIG_LIBYUV
137 static INLINE int libyuv_scale(vpx_image_t *src, vpx_image_t *dst,
138  FilterModeEnum mode) {
139 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
140  if (src->fmt == VPX_IMG_FMT_I42016) {
141  assert(dst->fmt == VPX_IMG_FMT_I42016);
142  return I420Scale_16((uint16_t*)src->planes[VPX_PLANE_Y],
143  src->stride[VPX_PLANE_Y]/2,
144  (uint16_t*)src->planes[VPX_PLANE_U],
145  src->stride[VPX_PLANE_U]/2,
146  (uint16_t*)src->planes[VPX_PLANE_V],
147  src->stride[VPX_PLANE_V]/2,
148  src->d_w, src->d_h,
149  (uint16_t*)dst->planes[VPX_PLANE_Y],
150  dst->stride[VPX_PLANE_Y]/2,
151  (uint16_t*)dst->planes[VPX_PLANE_U],
152  dst->stride[VPX_PLANE_U]/2,
153  (uint16_t*)dst->planes[VPX_PLANE_V],
154  dst->stride[VPX_PLANE_V]/2,
155  dst->d_w, dst->d_h,
156  mode);
157  }
158 #endif
159  assert(src->fmt == VPX_IMG_FMT_I420);
160  assert(dst->fmt == VPX_IMG_FMT_I420);
161  return I420Scale(src->planes[VPX_PLANE_Y], src->stride[VPX_PLANE_Y],
162  src->planes[VPX_PLANE_U], src->stride[VPX_PLANE_U],
163  src->planes[VPX_PLANE_V], src->stride[VPX_PLANE_V],
164  src->d_w, src->d_h,
165  dst->planes[VPX_PLANE_Y], dst->stride[VPX_PLANE_Y],
166  dst->planes[VPX_PLANE_U], dst->stride[VPX_PLANE_U],
167  dst->planes[VPX_PLANE_V], dst->stride[VPX_PLANE_V],
168  dst->d_w, dst->d_h,
169  mode);
170 }
171 #endif
172 
173 void usage_exit(void) {
174  int i;
175 
176  fprintf(stderr, "Usage: %s <options> filename\n\n"
177  "Options:\n", exec_name);
178  arg_show_usage(stderr, all_args);
179 #if CONFIG_VP8_DECODER
180  fprintf(stderr, "\nVP8 Postprocessing Options:\n");
181  arg_show_usage(stderr, vp8_pp_args);
182 #endif
183  fprintf(stderr,
184  "\nOutput File Patterns:\n\n"
185  " The -o argument specifies the name of the file(s) to "
186  "write to. If the\n argument does not include any escape "
187  "characters, the output will be\n written to a single file. "
188  "Otherwise, the filename will be calculated by\n expanding "
189  "the following escape characters:\n");
190  fprintf(stderr,
191  "\n\t%%w - Frame width"
192  "\n\t%%h - Frame height"
193  "\n\t%%<n> - Frame number, zero padded to <n> places (1..9)"
194  "\n\n Pattern arguments are only supported in conjunction "
195  "with the --yv12 and\n --i420 options. If the -o option is "
196  "not specified, the output will be\n directed to stdout.\n"
197  );
198  fprintf(stderr, "\nIncluded decoders:\n\n");
199 
200  for (i = 0; i < get_vpx_decoder_count(); ++i) {
201  const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
202  fprintf(stderr, " %-6s - %s\n",
203  decoder->name, vpx_codec_iface_name(decoder->codec_interface()));
204  }
205 
206  exit(EXIT_FAILURE);
207 }
208 
209 static int raw_read_frame(FILE *infile, uint8_t **buffer,
210  size_t *bytes_read, size_t *buffer_size) {
211  char raw_hdr[RAW_FRAME_HDR_SZ];
212  size_t frame_size = 0;
213 
214  if (fread(raw_hdr, RAW_FRAME_HDR_SZ, 1, infile) != 1) {
215  if (!feof(infile))
216  warn("Failed to read RAW frame size\n");
217  } else {
218  const size_t kCorruptFrameThreshold = 256 * 1024 * 1024;
219  const size_t kFrameTooSmallThreshold = 256 * 1024;
220  frame_size = mem_get_le32(raw_hdr);
221 
222  if (frame_size > kCorruptFrameThreshold) {
223  warn("Read invalid frame size (%u)\n", (unsigned int)frame_size);
224  frame_size = 0;
225  }
226 
227  if (frame_size < kFrameTooSmallThreshold) {
228  warn("Warning: Read invalid frame size (%u) - not a raw file?\n",
229  (unsigned int)frame_size);
230  }
231 
232  if (frame_size > *buffer_size) {
233  uint8_t *new_buf = realloc(*buffer, 2 * frame_size);
234  if (new_buf) {
235  *buffer = new_buf;
236  *buffer_size = 2 * frame_size;
237  } else {
238  warn("Failed to allocate compressed data buffer\n");
239  frame_size = 0;
240  }
241  }
242  }
243 
244  if (!feof(infile)) {
245  if (fread(*buffer, 1, frame_size, infile) != frame_size) {
246  warn("Failed to read full frame\n");
247  return 1;
248  }
249  *bytes_read = frame_size;
250  }
251 
252  return 0;
253 }
254 
255 static int read_frame(struct VpxDecInputContext *input, uint8_t **buf,
256  size_t *bytes_in_buffer, size_t *buffer_size) {
257  switch (input->vpx_input_ctx->file_type) {
258 #if CONFIG_WEBM_IO
259  case FILE_TYPE_WEBM:
260  return webm_read_frame(input->webm_ctx,
261  buf, bytes_in_buffer, buffer_size);
262 #endif
263  case FILE_TYPE_RAW:
264  return raw_read_frame(input->vpx_input_ctx->file,
265  buf, bytes_in_buffer, buffer_size);
266  case FILE_TYPE_IVF:
267  return ivf_read_frame(input->vpx_input_ctx->file,
268  buf, bytes_in_buffer, buffer_size);
269  default:
270  return 1;
271  }
272 }
273 
274 static void update_image_md5(const vpx_image_t *img, const int planes[3],
275  MD5Context *md5) {
276  int i, y;
277 
278  for (i = 0; i < 3; ++i) {
279  const int plane = planes[i];
280  const unsigned char *buf = img->planes[plane];
281  const int stride = img->stride[plane];
282  const int w = vpx_img_plane_width(img, plane) *
283  ((img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
284  const int h = vpx_img_plane_height(img, plane);
285 
286  for (y = 0; y < h; ++y) {
287  MD5Update(md5, buf, w);
288  buf += stride;
289  }
290  }
291 }
292 
293 static void write_image_file(const vpx_image_t *img, const int planes[3],
294  FILE *file) {
295  int i, y;
296 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
297  const int bytes_per_sample = ((img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
298 #else
299  const int bytes_per_sample = 1;
300 #endif
301 
302  for (i = 0; i < 3; ++i) {
303  const int plane = planes[i];
304  const unsigned char *buf = img->planes[plane];
305  const int stride = img->stride[plane];
306  const int w = vpx_img_plane_width(img, plane);
307  const int h = vpx_img_plane_height(img, plane);
308 
309  for (y = 0; y < h; ++y) {
310  fwrite(buf, bytes_per_sample, w, file);
311  buf += stride;
312  }
313  }
314 }
315 
316 static int file_is_raw(struct VpxInputContext *input) {
317  uint8_t buf[32];
318  int is_raw = 0;
320 
321  si.sz = sizeof(si);
322 
323  if (fread(buf, 1, 32, input->file) == 32) {
324  int i;
325 
326  if (mem_get_le32(buf) < 256 * 1024 * 1024) {
327  for (i = 0; i < get_vpx_decoder_count(); ++i) {
328  const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
329  if (!vpx_codec_peek_stream_info(decoder->codec_interface(),
330  buf + 4, 32 - 4, &si)) {
331  is_raw = 1;
332  input->fourcc = decoder->fourcc;
333  input->width = si.w;
334  input->height = si.h;
335  input->framerate.numerator = 30;
336  input->framerate.denominator = 1;
337  break;
338  }
339  }
340  }
341  }
342 
343  rewind(input->file);
344  return is_raw;
345 }
346 
347 static void show_progress(int frame_in, int frame_out, uint64_t dx_time) {
348  fprintf(stderr,
349  "%d decoded frames/%d showed frames in %"PRId64" us (%.2f fps)\r",
350  frame_in, frame_out, dx_time,
351  (double)frame_out * 1000000.0 / (double)dx_time);
352 }
353 
354 struct ExternalFrameBuffer {
355  uint8_t* data;
356  size_t size;
357  int in_use;
358 };
359 
360 struct ExternalFrameBufferList {
361  int num_external_frame_buffers;
362  struct ExternalFrameBuffer *ext_fb;
363 };
364 
365 // Callback used by libvpx to request an external frame buffer. |cb_priv|
366 // Application private data passed into the set function. |min_size| is the
367 // minimum size in bytes needed to decode the next frame. |fb| pointer to the
368 // frame buffer.
369 static int get_vp9_frame_buffer(void *cb_priv, size_t min_size,
371  int i;
372  struct ExternalFrameBufferList *const ext_fb_list =
373  (struct ExternalFrameBufferList *)cb_priv;
374  if (ext_fb_list == NULL)
375  return -1;
376 
377  // Find a free frame buffer.
378  for (i = 0; i < ext_fb_list->num_external_frame_buffers; ++i) {
379  if (!ext_fb_list->ext_fb[i].in_use)
380  break;
381  }
382 
383  if (i == ext_fb_list->num_external_frame_buffers)
384  return -1;
385 
386  if (ext_fb_list->ext_fb[i].size < min_size) {
387  free(ext_fb_list->ext_fb[i].data);
388  ext_fb_list->ext_fb[i].data = (uint8_t *)calloc(min_size, sizeof(uint8_t));
389  if (!ext_fb_list->ext_fb[i].data)
390  return -1;
391 
392  ext_fb_list->ext_fb[i].size = min_size;
393  }
394 
395  fb->data = ext_fb_list->ext_fb[i].data;
396  fb->size = ext_fb_list->ext_fb[i].size;
397  ext_fb_list->ext_fb[i].in_use = 1;
398 
399  // Set the frame buffer's private data to point at the external frame buffer.
400  fb->priv = &ext_fb_list->ext_fb[i];
401  return 0;
402 }
403 
404 // Callback used by libvpx when there are no references to the frame buffer.
405 // |cb_priv| user private data passed into the set function. |fb| pointer
406 // to the frame buffer.
407 static int release_vp9_frame_buffer(void *cb_priv,
409  struct ExternalFrameBuffer *const ext_fb =
410  (struct ExternalFrameBuffer *)fb->priv;
411  (void)cb_priv;
412  ext_fb->in_use = 0;
413  return 0;
414 }
415 
416 static void generate_filename(const char *pattern, char *out, size_t q_len,
417  unsigned int d_w, unsigned int d_h,
418  unsigned int frame_in) {
419  const char *p = pattern;
420  char *q = out;
421 
422  do {
423  char *next_pat = strchr(p, '%');
424 
425  if (p == next_pat) {
426  size_t pat_len;
427 
428  /* parse the pattern */
429  q[q_len - 1] = '\0';
430  switch (p[1]) {
431  case 'w':
432  snprintf(q, q_len - 1, "%d", d_w);
433  break;
434  case 'h':
435  snprintf(q, q_len - 1, "%d", d_h);
436  break;
437  case '1':
438  snprintf(q, q_len - 1, "%d", frame_in);
439  break;
440  case '2':
441  snprintf(q, q_len - 1, "%02d", frame_in);
442  break;
443  case '3':
444  snprintf(q, q_len - 1, "%03d", frame_in);
445  break;
446  case '4':
447  snprintf(q, q_len - 1, "%04d", frame_in);
448  break;
449  case '5':
450  snprintf(q, q_len - 1, "%05d", frame_in);
451  break;
452  case '6':
453  snprintf(q, q_len - 1, "%06d", frame_in);
454  break;
455  case '7':
456  snprintf(q, q_len - 1, "%07d", frame_in);
457  break;
458  case '8':
459  snprintf(q, q_len - 1, "%08d", frame_in);
460  break;
461  case '9':
462  snprintf(q, q_len - 1, "%09d", frame_in);
463  break;
464  default:
465  die("Unrecognized pattern %%%c\n", p[1]);
466  break;
467  }
468 
469  pat_len = strlen(q);
470  if (pat_len >= q_len - 1)
471  die("Output filename too long.\n");
472  q += pat_len;
473  p += 2;
474  q_len -= pat_len;
475  } else {
476  size_t copy_len;
477 
478  /* copy the next segment */
479  if (!next_pat)
480  copy_len = strlen(p);
481  else
482  copy_len = next_pat - p;
483 
484  if (copy_len >= q_len - 1)
485  die("Output filename too long.\n");
486 
487  memcpy(q, p, copy_len);
488  q[copy_len] = '\0';
489  q += copy_len;
490  p += copy_len;
491  q_len -= copy_len;
492  }
493  } while (*p);
494 }
495 
496 static int is_single_file(const char *outfile_pattern) {
497  const char *p = outfile_pattern;
498 
499  do {
500  p = strchr(p, '%');
501  if (p && p[1] >= '1' && p[1] <= '9')
502  return 0; // pattern contains sequence number, so it's not unique
503  if (p)
504  p++;
505  } while (p);
506 
507  return 1;
508 }
509 
510 static void print_md5(unsigned char digest[16], const char *filename) {
511  int i;
512 
513  for (i = 0; i < 16; ++i)
514  printf("%02x", digest[i]);
515  printf(" %s\n", filename);
516 }
517 
518 static FILE *open_outfile(const char *name) {
519  if (strcmp("-", name) == 0) {
520  set_binary_mode(stdout);
521  return stdout;
522  } else {
523  FILE *file = fopen(name, "wb");
524  if (!file)
525  fatal("Failed to open output file '%s'", name);
526  return file;
527  }
528 }
529 
530 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
531 static int img_shifted_realloc_required(const vpx_image_t *img,
532  const vpx_image_t *shifted,
533  vpx_img_fmt_t required_fmt) {
534  return img->d_w != shifted->d_w ||
535  img->d_h != shifted->d_h ||
536  required_fmt != shifted->fmt;
537 }
538 #endif
539 
540 static int main_loop(int argc, const char **argv_) {
541  vpx_codec_ctx_t decoder;
542  char *fn = NULL;
543  int i;
544  uint8_t *buf = NULL;
545  size_t bytes_in_buffer = 0, buffer_size = 0;
546  FILE *infile;
547  int frame_in = 0, frame_out = 0, flipuv = 0, noblit = 0;
548  int do_md5 = 0, progress = 0, frame_parallel = 0;
549  int stop_after = 0, postproc = 0, summary = 0, quiet = 1;
550  int arg_skip = 0;
551  int ec_enabled = 0;
552  int keep_going = 0;
553  const VpxInterface *interface = NULL;
554  const VpxInterface *fourcc_interface = NULL;
555  uint64_t dx_time = 0;
556  struct arg arg;
557  char **argv, **argi, **argj;
558 
559  int single_file;
560  int use_y4m = 1;
561  int opt_yv12 = 0;
562  int opt_i420 = 0;
563  vpx_codec_dec_cfg_t cfg = {0, 0, 0};
564 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
565  int output_bit_depth = 0;
566 #endif
567 #if CONFIG_VP8_DECODER
568  vp8_postproc_cfg_t vp8_pp_cfg = {0};
569  int vp8_dbg_color_ref_frame = 0;
570  int vp8_dbg_color_mb_modes = 0;
571  int vp8_dbg_color_b_modes = 0;
572  int vp8_dbg_display_mv = 0;
573 #endif
574  int frames_corrupted = 0;
575  int dec_flags = 0;
576  int do_scale = 0;
577  vpx_image_t *scaled_img = NULL;
578 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
579  vpx_image_t *img_shifted = NULL;
580 #endif
581  int frame_avail, got_data, flush_decoder = 0;
582  int num_external_frame_buffers = 0;
583  struct ExternalFrameBufferList ext_fb_list = {0, NULL};
584 
585  const char *outfile_pattern = NULL;
586  char outfile_name[PATH_MAX] = {0};
587  FILE *outfile = NULL;
588 
589  MD5Context md5_ctx;
590  unsigned char md5_digest[16];
591 
592  struct VpxDecInputContext input = {NULL, NULL};
593  struct VpxInputContext vpx_input_ctx;
594 #if CONFIG_WEBM_IO
595  struct WebmInputContext webm_ctx;
596  memset(&(webm_ctx), 0, sizeof(webm_ctx));
597  input.webm_ctx = &webm_ctx;
598 #endif
599  input.vpx_input_ctx = &vpx_input_ctx;
600 
601  /* Parse command line */
602  exec_name = argv_[0];
603  argv = argv_dup(argc - 1, argv_ + 1);
604 
605  for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
606  memset(&arg, 0, sizeof(arg));
607  arg.argv_step = 1;
608 
609  if (arg_match(&arg, &codecarg, argi)) {
610  interface = get_vpx_decoder_by_name(arg.val);
611  if (!interface)
612  die("Error: Unrecognized argument (%s) to --codec\n", arg.val);
613  } else if (arg_match(&arg, &looparg, argi)) {
614  // no-op
615  } else if (arg_match(&arg, &outputfile, argi))
616  outfile_pattern = arg.val;
617  else if (arg_match(&arg, &use_yv12, argi)) {
618  use_y4m = 0;
619  flipuv = 1;
620  opt_yv12 = 1;
621 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
622  output_bit_depth = 8; // For yv12 8-bit depth output is assumed
623 #endif
624  } else if (arg_match(&arg, &use_i420, argi)) {
625  use_y4m = 0;
626  flipuv = 0;
627  opt_i420 = 1;
628  } else if (arg_match(&arg, &rawvideo, argi)) {
629  use_y4m = 0;
630  } else if (arg_match(&arg, &flipuvarg, argi))
631  flipuv = 1;
632  else if (arg_match(&arg, &noblitarg, argi))
633  noblit = 1;
634  else if (arg_match(&arg, &progressarg, argi))
635  progress = 1;
636  else if (arg_match(&arg, &limitarg, argi))
637  stop_after = arg_parse_uint(&arg);
638  else if (arg_match(&arg, &skiparg, argi))
639  arg_skip = arg_parse_uint(&arg);
640  else if (arg_match(&arg, &postprocarg, argi))
641  postproc = 1;
642  else if (arg_match(&arg, &md5arg, argi))
643  do_md5 = 1;
644  else if (arg_match(&arg, &summaryarg, argi))
645  summary = 1;
646  else if (arg_match(&arg, &threadsarg, argi))
647  cfg.threads = arg_parse_uint(&arg);
648 #if CONFIG_VP9_DECODER
649  else if (arg_match(&arg, &frameparallelarg, argi))
650  frame_parallel = 1;
651 #endif
652  else if (arg_match(&arg, &verbosearg, argi))
653  quiet = 0;
654  else if (arg_match(&arg, &scalearg, argi))
655  do_scale = 1;
656  else if (arg_match(&arg, &fb_arg, argi))
657  num_external_frame_buffers = arg_parse_uint(&arg);
658  else if (arg_match(&arg, &continuearg, argi))
659  keep_going = 1;
660 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
661  else if (arg_match(&arg, &outbitdeptharg, argi)) {
662  output_bit_depth = arg_parse_uint(&arg);
663  }
664 #endif
665 #if CONFIG_VP8_DECODER
666  else if (arg_match(&arg, &addnoise_level, argi)) {
667  postproc = 1;
668  vp8_pp_cfg.post_proc_flag |= VP8_ADDNOISE;
669  vp8_pp_cfg.noise_level = arg_parse_uint(&arg);
670  } else if (arg_match(&arg, &demacroblock_level, argi)) {
671  postproc = 1;
672  vp8_pp_cfg.post_proc_flag |= VP8_DEMACROBLOCK;
673  vp8_pp_cfg.deblocking_level = arg_parse_uint(&arg);
674  } else if (arg_match(&arg, &deblock, argi)) {
675  postproc = 1;
676  vp8_pp_cfg.post_proc_flag |= VP8_DEBLOCK;
677  } else if (arg_match(&arg, &mfqe, argi)) {
678  postproc = 1;
679  vp8_pp_cfg.post_proc_flag |= VP8_MFQE;
680  } else if (arg_match(&arg, &pp_debug_info, argi)) {
681  unsigned int level = arg_parse_uint(&arg);
682 
683  postproc = 1;
684  vp8_pp_cfg.post_proc_flag &= ~0x7;
685 
686  if (level)
687  vp8_pp_cfg.post_proc_flag |= level;
688  } else if (arg_match(&arg, &pp_disp_ref_frame, argi)) {
689  unsigned int flags = arg_parse_int(&arg);
690  if (flags) {
691  postproc = 1;
692  vp8_dbg_color_ref_frame = flags;
693  }
694  } else if (arg_match(&arg, &pp_disp_mb_modes, argi)) {
695  unsigned int flags = arg_parse_int(&arg);
696  if (flags) {
697  postproc = 1;
698  vp8_dbg_color_mb_modes = flags;
699  }
700  } else if (arg_match(&arg, &pp_disp_b_modes, argi)) {
701  unsigned int flags = arg_parse_int(&arg);
702  if (flags) {
703  postproc = 1;
704  vp8_dbg_color_b_modes = flags;
705  }
706  } else if (arg_match(&arg, &pp_disp_mvs, argi)) {
707  unsigned int flags = arg_parse_int(&arg);
708  if (flags) {
709  postproc = 1;
710  vp8_dbg_display_mv = flags;
711  }
712  } else if (arg_match(&arg, &error_concealment, argi)) {
713  ec_enabled = 1;
714  }
715 #endif // CONFIG_VP8_DECODER
716  else
717  argj++;
718  }
719 
720  /* Check for unrecognized options */
721  for (argi = argv; *argi; argi++)
722  if (argi[0][0] == '-' && strlen(argi[0]) > 1)
723  die("Error: Unrecognized option %s\n", *argi);
724 
725  /* Handle non-option arguments */
726  fn = argv[0];
727 
728  if (!fn) {
729  free(argv);
730  usage_exit();
731  }
732  /* Open file */
733  infile = strcmp(fn, "-") ? fopen(fn, "rb") : set_binary_mode(stdin);
734 
735  if (!infile) {
736  fatal("Failed to open input file '%s'", strcmp(fn, "-") ? fn : "stdin");
737  }
738 #if CONFIG_OS_SUPPORT
739  /* Make sure we don't dump to the terminal, unless forced to with -o - */
740  if (!outfile_pattern && isatty(fileno(stdout)) && !do_md5 && !noblit) {
741  fprintf(stderr,
742  "Not dumping raw video to your terminal. Use '-o -' to "
743  "override.\n");
744  return EXIT_FAILURE;
745  }
746 #endif
747  input.vpx_input_ctx->file = infile;
748  if (file_is_ivf(input.vpx_input_ctx))
749  input.vpx_input_ctx->file_type = FILE_TYPE_IVF;
750 #if CONFIG_WEBM_IO
751  else if (file_is_webm(input.webm_ctx, input.vpx_input_ctx))
752  input.vpx_input_ctx->file_type = FILE_TYPE_WEBM;
753 #endif
754  else if (file_is_raw(input.vpx_input_ctx))
755  input.vpx_input_ctx->file_type = FILE_TYPE_RAW;
756  else {
757  fprintf(stderr, "Unrecognized input file type.\n");
758 #if !CONFIG_WEBM_IO
759  fprintf(stderr, "vpxdec was built without WebM container support.\n");
760 #endif
761  return EXIT_FAILURE;
762  }
763 
764  outfile_pattern = outfile_pattern ? outfile_pattern : "-";
765  single_file = is_single_file(outfile_pattern);
766 
767  if (!noblit && single_file) {
768  generate_filename(outfile_pattern, outfile_name, PATH_MAX,
769  vpx_input_ctx.width, vpx_input_ctx.height, 0);
770  if (do_md5)
771  MD5Init(&md5_ctx);
772  else
773  outfile = open_outfile(outfile_name);
774  }
775 
776  if (use_y4m && !noblit) {
777  if (!single_file) {
778  fprintf(stderr, "YUV4MPEG2 not supported with output patterns,"
779  " try --i420 or --yv12 or --rawvideo.\n");
780  return EXIT_FAILURE;
781  }
782 
783 #if CONFIG_WEBM_IO
784  if (vpx_input_ctx.file_type == FILE_TYPE_WEBM) {
785  if (webm_guess_framerate(input.webm_ctx, input.vpx_input_ctx)) {
786  fprintf(stderr, "Failed to guess framerate -- error parsing "
787  "webm file?\n");
788  return EXIT_FAILURE;
789  }
790  }
791 #endif
792  }
793 
794  fourcc_interface = get_vpx_decoder_by_fourcc(vpx_input_ctx.fourcc);
795  if (interface && fourcc_interface && interface != fourcc_interface)
796  warn("Header indicates codec: %s\n", fourcc_interface->name);
797  else
798  interface = fourcc_interface;
799 
800  if (!interface)
801  interface = get_vpx_decoder_by_index(0);
802 
803  dec_flags = (postproc ? VPX_CODEC_USE_POSTPROC : 0) |
804  (ec_enabled ? VPX_CODEC_USE_ERROR_CONCEALMENT : 0) |
805  (frame_parallel ? VPX_CODEC_USE_FRAME_THREADING : 0);
806  if (vpx_codec_dec_init(&decoder, interface->codec_interface(),
807  &cfg, dec_flags)) {
808  fprintf(stderr, "Failed to initialize decoder: %s\n",
809  vpx_codec_error(&decoder));
810  return EXIT_FAILURE;
811  }
812 
813  if (!quiet)
814  fprintf(stderr, "%s\n", decoder.name);
815 
816 #if CONFIG_VP8_DECODER
817  if (vp8_pp_cfg.post_proc_flag
818  && vpx_codec_control(&decoder, VP8_SET_POSTPROC, &vp8_pp_cfg)) {
819  fprintf(stderr, "Failed to configure postproc: %s\n",
820  vpx_codec_error(&decoder));
821  return EXIT_FAILURE;
822  }
823 
824  if (vp8_dbg_color_ref_frame
826  vp8_dbg_color_ref_frame)) {
827  fprintf(stderr, "Failed to configure reference block visualizer: %s\n",
828  vpx_codec_error(&decoder));
829  return EXIT_FAILURE;
830  }
831 
832  if (vp8_dbg_color_mb_modes
834  vp8_dbg_color_mb_modes)) {
835  fprintf(stderr, "Failed to configure macro block visualizer: %s\n",
836  vpx_codec_error(&decoder));
837  return EXIT_FAILURE;
838  }
839 
840  if (vp8_dbg_color_b_modes
842  vp8_dbg_color_b_modes)) {
843  fprintf(stderr, "Failed to configure block visualizer: %s\n",
844  vpx_codec_error(&decoder));
845  return EXIT_FAILURE;
846  }
847 
848  if (vp8_dbg_display_mv
850  vp8_dbg_display_mv)) {
851  fprintf(stderr, "Failed to configure motion vector visualizer: %s\n",
852  vpx_codec_error(&decoder));
853  return EXIT_FAILURE;
854  }
855 #endif
856 
857 
858  if (arg_skip)
859  fprintf(stderr, "Skipping first %d frames.\n", arg_skip);
860  while (arg_skip) {
861  if (read_frame(&input, &buf, &bytes_in_buffer, &buffer_size))
862  break;
863  arg_skip--;
864  }
865 
866  if (num_external_frame_buffers > 0) {
867  ext_fb_list.num_external_frame_buffers = num_external_frame_buffers;
868  ext_fb_list.ext_fb = (struct ExternalFrameBuffer *)calloc(
869  num_external_frame_buffers, sizeof(*ext_fb_list.ext_fb));
871  &decoder, get_vp9_frame_buffer, release_vp9_frame_buffer,
872  &ext_fb_list)) {
873  fprintf(stderr, "Failed to configure external frame buffers: %s\n",
874  vpx_codec_error(&decoder));
875  return EXIT_FAILURE;
876  }
877  }
878 
879  frame_avail = 1;
880  got_data = 0;
881 
882  /* Decode file */
883  while (frame_avail || got_data) {
884  vpx_codec_iter_t iter = NULL;
885  vpx_image_t *img;
886  struct vpx_usec_timer timer;
887  int corrupted = 0;
888 
889  frame_avail = 0;
890  if (!stop_after || frame_in < stop_after) {
891  if (!read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) {
892  frame_avail = 1;
893  frame_in++;
894 
895  vpx_usec_timer_start(&timer);
896 
897  if (vpx_codec_decode(&decoder, buf, (unsigned int)bytes_in_buffer,
898  NULL, 0)) {
899  const char *detail = vpx_codec_error_detail(&decoder);
900  warn("Failed to decode frame %d: %s",
901  frame_in, vpx_codec_error(&decoder));
902 
903  if (detail)
904  warn("Additional information: %s", detail);
905  if (!keep_going)
906  goto fail;
907  }
908 
909  vpx_usec_timer_mark(&timer);
910  dx_time += vpx_usec_timer_elapsed(&timer);
911  } else {
912  flush_decoder = 1;
913  }
914  } else {
915  flush_decoder = 1;
916  }
917 
918  vpx_usec_timer_start(&timer);
919 
920  if (flush_decoder) {
921  // Flush the decoder in frame parallel decode.
922  if (vpx_codec_decode(&decoder, NULL, 0, NULL, 0)) {
923  warn("Failed to flush decoder: %s", vpx_codec_error(&decoder));
924  }
925  }
926 
927  got_data = 0;
928  if ((img = vpx_codec_get_frame(&decoder, &iter))) {
929  ++frame_out;
930  got_data = 1;
931  }
932 
933  vpx_usec_timer_mark(&timer);
934  dx_time += (unsigned int)vpx_usec_timer_elapsed(&timer);
935 
936  if (!frame_parallel &&
937  vpx_codec_control(&decoder, VP8D_GET_FRAME_CORRUPTED, &corrupted)) {
938  warn("Failed VP8_GET_FRAME_CORRUPTED: %s", vpx_codec_error(&decoder));
939  if (!keep_going)
940  goto fail;
941  }
942  frames_corrupted += corrupted;
943 
944  if (progress)
945  show_progress(frame_in, frame_out, dx_time);
946 
947  if (!noblit && img) {
948  const int PLANES_YUV[] = {VPX_PLANE_Y, VPX_PLANE_U, VPX_PLANE_V};
949  const int PLANES_YVU[] = {VPX_PLANE_Y, VPX_PLANE_V, VPX_PLANE_U};
950  const int *planes = flipuv ? PLANES_YVU : PLANES_YUV;
951 
952  if (do_scale) {
953  if (frame_out == 1) {
954  // If the output frames are to be scaled to a fixed display size then
955  // use the width and height specified in the container. If either of
956  // these is set to 0, use the display size set in the first frame
957  // header. If that is unavailable, use the raw decoded size of the
958  // first decoded frame.
959  int display_width = vpx_input_ctx.width;
960  int display_height = vpx_input_ctx.height;
961  if (!display_width || !display_height) {
962  int display_size[2];
964  display_size)) {
965  // As last resort use size of first frame as display size.
966  display_width = img->d_w;
967  display_height = img->d_h;
968  } else {
969  display_width = display_size[0];
970  display_height = display_size[1];
971  }
972  }
973  scaled_img = vpx_img_alloc(NULL, img->fmt, display_width,
974  display_height, 16);
975  scaled_img->bit_depth = img->bit_depth;
976  }
977 
978  if (img->d_w != scaled_img->d_w || img->d_h != scaled_img->d_h) {
979 #if CONFIG_LIBYUV
980  libyuv_scale(img, scaled_img, kFilterBox);
981  img = scaled_img;
982 #else
983  fprintf(stderr, "Failed to scale output frame: %s.\n"
984  "Scaling is disabled in this configuration. "
985  "To enable scaling, configure with --enable-libyuv\n",
986  vpx_codec_error(&decoder));
987  return EXIT_FAILURE;
988 #endif
989  }
990  }
991 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
992  // Default to codec bit depth if output bit depth not set
993  if (!output_bit_depth) {
994  output_bit_depth = img->bit_depth;
995  }
996  // Shift up or down if necessary
997  if (output_bit_depth != img->bit_depth) {
998  const vpx_img_fmt_t shifted_fmt = output_bit_depth == 8 ?
999  img->fmt ^ (img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) :
1001  if (img_shifted &&
1002  img_shifted_realloc_required(img, img_shifted, shifted_fmt)) {
1003  vpx_img_free(img_shifted);
1004  img_shifted = NULL;
1005  }
1006  if (!img_shifted) {
1007  img_shifted = vpx_img_alloc(NULL, shifted_fmt,
1008  img->d_w, img->d_h, 16);
1009  img_shifted->bit_depth = output_bit_depth;
1010  }
1011  if (output_bit_depth > img->bit_depth) {
1012  vpx_img_upshift(img_shifted, img,
1013  output_bit_depth - img->bit_depth);
1014  } else {
1015  vpx_img_downshift(img_shifted, img,
1016  img->bit_depth - output_bit_depth);
1017  }
1018  img = img_shifted;
1019  }
1020 #endif
1021 
1022  if (single_file) {
1023  if (use_y4m) {
1024  char buf[Y4M_BUFFER_SIZE] = {0};
1025  size_t len = 0;
1026  if (img->fmt == VPX_IMG_FMT_I440 || img->fmt == VPX_IMG_FMT_I44016) {
1027  fprintf(stderr, "Cannot produce y4m output for 440 sampling.\n");
1028  goto fail;
1029  }
1030  if (frame_out == 1) {
1031  // Y4M file header
1032  len = y4m_write_file_header(buf, sizeof(buf),
1033  vpx_input_ctx.width,
1034  vpx_input_ctx.height,
1035  &vpx_input_ctx.framerate,
1036  img->fmt, img->bit_depth);
1037  if (do_md5) {
1038  MD5Update(&md5_ctx, (md5byte *)buf, (unsigned int)len);
1039  } else {
1040  fputs(buf, outfile);
1041  }
1042  }
1043 
1044  // Y4M frame header
1045  len = y4m_write_frame_header(buf, sizeof(buf));
1046  if (do_md5) {
1047  MD5Update(&md5_ctx, (md5byte *)buf, (unsigned int)len);
1048  } else {
1049  fputs(buf, outfile);
1050  }
1051  } else {
1052  if (frame_out == 1) {
1053  // Check if --yv12 or --i420 options are consistent with the
1054  // bit-stream decoded
1055  if (opt_i420) {
1056  if (img->fmt != VPX_IMG_FMT_I420 &&
1057  img->fmt != VPX_IMG_FMT_I42016) {
1058  fprintf(stderr, "Cannot produce i420 output for bit-stream.\n");
1059  goto fail;
1060  }
1061  }
1062  if (opt_yv12) {
1063  if ((img->fmt != VPX_IMG_FMT_I420 &&
1064  img->fmt != VPX_IMG_FMT_YV12) || img->bit_depth != 8) {
1065  fprintf(stderr, "Cannot produce yv12 output for bit-stream.\n");
1066  goto fail;
1067  }
1068  }
1069  }
1070  }
1071 
1072  if (do_md5) {
1073  update_image_md5(img, planes, &md5_ctx);
1074  } else {
1075  write_image_file(img, planes, outfile);
1076  }
1077  } else {
1078  generate_filename(outfile_pattern, outfile_name, PATH_MAX,
1079  img->d_w, img->d_h, frame_in);
1080  if (do_md5) {
1081  MD5Init(&md5_ctx);
1082  update_image_md5(img, planes, &md5_ctx);
1083  MD5Final(md5_digest, &md5_ctx);
1084  print_md5(md5_digest, outfile_name);
1085  } else {
1086  outfile = open_outfile(outfile_name);
1087  write_image_file(img, planes, outfile);
1088  fclose(outfile);
1089  }
1090  }
1091  }
1092  }
1093 
1094  if (summary || progress) {
1095  show_progress(frame_in, frame_out, dx_time);
1096  fprintf(stderr, "\n");
1097  }
1098 
1099  if (frames_corrupted)
1100  fprintf(stderr, "WARNING: %d frames corrupted.\n", frames_corrupted);
1101 
1102 fail:
1103 
1104  if (vpx_codec_destroy(&decoder)) {
1105  fprintf(stderr, "Failed to destroy decoder: %s\n",
1106  vpx_codec_error(&decoder));
1107  return EXIT_FAILURE;
1108  }
1109 
1110  if (!noblit && single_file) {
1111  if (do_md5) {
1112  MD5Final(md5_digest, &md5_ctx);
1113  print_md5(md5_digest, outfile_name);
1114  } else {
1115  fclose(outfile);
1116  }
1117  }
1118 
1119 #if CONFIG_WEBM_IO
1120  if (input.vpx_input_ctx->file_type == FILE_TYPE_WEBM)
1121  webm_free(input.webm_ctx);
1122 #endif
1123 
1124  if (input.vpx_input_ctx->file_type != FILE_TYPE_WEBM)
1125  free(buf);
1126 
1127  if (scaled_img) vpx_img_free(scaled_img);
1128 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
1129  if (img_shifted) vpx_img_free(img_shifted);
1130 #endif
1131 
1132  for (i = 0; i < ext_fb_list.num_external_frame_buffers; ++i) {
1133  free(ext_fb_list.ext_fb[i].data);
1134  }
1135  free(ext_fb_list.ext_fb);
1136 
1137  fclose(infile);
1138  free(argv);
1139 
1140  return frames_corrupted ? EXIT_FAILURE : EXIT_SUCCESS;
1141 }
1142 
1143 int main(int argc, const char **argv_) {
1144  unsigned int loops = 1, i;
1145  char **argv, **argi, **argj;
1146  struct arg arg;
1147  int error = 0;
1148 
1149  argv = argv_dup(argc - 1, argv_ + 1);
1150  for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
1151  memset(&arg, 0, sizeof(arg));
1152  arg.argv_step = 1;
1153 
1154  if (arg_match(&arg, &looparg, argi)) {
1155  loops = arg_parse_uint(&arg);
1156  break;
1157  }
1158  }
1159  free(argv);
1160  for (i = 0; !error && i < loops; i++)
1161  error = main_loop(argc, argv_);
1162  return error;
1163 }
Definition: vpx_image.h:66
Image Descriptor.
Definition: vpx_image.h:82
Describes the decoder algorithm interface to applications.
const char * vpx_codec_iface_name(vpx_codec_iface_t *iface)
Return the name for a given interface.
Definition: vpx_image.h:55
Definition: vp8.h:48
unsigned int threads
Definition: vpx_decoder.h:116
unsigned int sz
Definition: vpx_decoder.h:97
Stream properties.
Definition: vpx_decoder.h:96
Definition: vp8dx.h:87
int noise_level
Definition: vp8.h:88
unsigned int bit_depth
Definition: vpx_image.h:89
Provides definitions for using VP8 or VP9 within the vpx Decoder interface.
vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t *iface, const uint8_t *data, unsigned int data_sz, vpx_codec_stream_info_t *si)
Parse stream info from a buffer.
#define VPX_PLANE_Y
Definition: vpx_image.h:101
uint8_t * data
Definition: vpx_frame_buffer.h:40
const char * name
Definition: vpx_codec.h:200
#define VPX_PLANE_V
Definition: vpx_image.h:103
#define VPX_IMG_FMT_HIGHBITDEPTH
Definition: vpx_image.h:37
vpx_image_t * vpx_img_alloc(vpx_image_t *img, vpx_img_fmt_t fmt, unsigned int d_w, unsigned int d_h, unsigned int align)
Open a descriptor, allocating storage for the underlying image.
Definition: vpx_image.h:56
unsigned int d_w
Definition: vpx_image.h:92
#define vpx_codec_dec_init(ctx, iface, cfg, flags)
Convenience macro for vpx_codec_dec_init_ver()
Definition: vpx_decoder.h:154
vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t *ctx, const uint8_t *data, unsigned int data_sz, void *user_priv, long deadline)
Decode data.
enum vpx_img_fmt vpx_img_fmt_t
List of supported image formats.
size_t size
Definition: vpx_frame_buffer.h:41
int stride[4]
Definition: vpx_image.h:106
void vpx_img_free(vpx_image_t *img)
Close an image descriptor.
vpx_img_fmt_t fmt
Definition: vpx_image.h:83
unsigned char * planes[4]
Definition: vpx_image.h:105
Definition: vp8.h:47
#define VPX_CODEC_USE_POSTPROC
Definition: vpx_decoder.h:77
Definition: vp8dx.h:65
#define VPX_CODEC_USE_FRAME_THREADING
Definition: vpx_decoder.h:86
const char * vpx_codec_error_detail(vpx_codec_ctx_t *ctx)
Retrieve detailed error information for codec context.
void * priv
Definition: vpx_frame_buffer.h:42
#define VPX_PLANE_U
Definition: vpx_image.h:102
int deblocking_level
Definition: vp8.h:87
Definition: vp8.h:51
Definition: vp8.h:49
unsigned int w
Definition: vpx_decoder.h:98
External frame buffer.
Definition: vpx_frame_buffer.h:39
Definition: vp8.h:50
#define vpx_codec_control(ctx, id, data)
vpx_codec_control wrapper macro
Definition: vpx_codec.h:407
vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx)
Destroy a codec instance.
unsigned int d_h
Definition: vpx_image.h:93
post process flags
Definition: vp8.h:85
vpx_codec_err_t vpx_codec_set_frame_buffer_functions(vpx_codec_ctx_t *ctx, vpx_get_frame_buffer_cb_fn_t cb_get, vpx_release_frame_buffer_cb_fn_t cb_release, void *cb_priv)
Pass in external frame buffers for the decoder to use.
unsigned int h
Definition: vpx_decoder.h:99
const char * vpx_codec_error(vpx_codec_ctx_t *ctx)
Retrieve error synopsis for codec context.
Initialization Configurations.
Definition: vpx_decoder.h:115
Definition: vpx_image.h:61
const void * vpx_codec_iter_t
Iterator.
Definition: vpx_codec.h:188
vpx_image_t * vpx_codec_get_frame(vpx_codec_ctx_t *ctx, vpx_codec_iter_t *iter)
Decoded frames iterator.
int post_proc_flag
Definition: vp8.h:86
Codec context structure.
Definition: vpx_codec.h:199