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 <limits.h>
13 #include <stdarg.h>
14 #include <stdio.h>
15 #include <stdlib.h>
16 #include <string.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 help =
51  ARG_DEF(NULL, "help", 0, "Show usage options and exit");
52 static const arg_def_t looparg =
53  ARG_DEF(NULL, "loops", 1, "Number of times to decode the file");
54 static const arg_def_t codecarg = ARG_DEF(NULL, "codec", 1, "Codec to use");
55 static const arg_def_t use_yv12 =
56  ARG_DEF(NULL, "yv12", 0, "Output raw YV12 frames");
57 static const arg_def_t use_i420 =
58  ARG_DEF(NULL, "i420", 0, "Output raw I420 frames");
59 static const arg_def_t flipuvarg =
60  ARG_DEF(NULL, "flipuv", 0, "Flip the chroma planes in the output");
61 static const arg_def_t rawvideo =
62  ARG_DEF(NULL, "rawvideo", 0, "Output raw YUV frames");
63 static const arg_def_t noblitarg =
64  ARG_DEF(NULL, "noblit", 0, "Don't process the decoded frames");
65 static const arg_def_t progressarg =
66  ARG_DEF(NULL, "progress", 0, "Show progress after each frame decodes");
67 static const arg_def_t limitarg =
68  ARG_DEF(NULL, "limit", 1, "Stop decoding after n frames");
69 static const arg_def_t skiparg =
70  ARG_DEF(NULL, "skip", 1, "Skip the first n input frames");
71 static const arg_def_t postprocarg =
72  ARG_DEF(NULL, "postproc", 0, "Postprocess decoded frames");
73 static const arg_def_t summaryarg =
74  ARG_DEF(NULL, "summary", 0, "Show timing summary");
75 static const arg_def_t outputfile =
76  ARG_DEF("o", "output", 1, "Output file name pattern (see below)");
77 static const arg_def_t threadsarg =
78  ARG_DEF("t", "threads", 1, "Max threads to use");
79 static const arg_def_t frameparallelarg =
80  ARG_DEF(NULL, "frame-parallel", 0, "Frame parallel decode (ignored)");
81 static const arg_def_t verbosearg =
82  ARG_DEF("v", "verbose", 0, "Show version string");
83 static const arg_def_t error_concealment =
84  ARG_DEF(NULL, "error-concealment", 0, "Enable decoder error-concealment");
85 static const arg_def_t scalearg =
86  ARG_DEF("S", "scale", 0, "Scale output frames uniformly");
87 static const arg_def_t continuearg =
88  ARG_DEF("k", "keep-going", 0, "(debug) Continue decoding after error");
89 static const arg_def_t fb_arg =
90  ARG_DEF(NULL, "frame-buffers", 1, "Number of frame buffers to use");
91 static const arg_def_t md5arg =
92  ARG_DEF(NULL, "md5", 0, "Compute the MD5 sum of the decoded frame");
93 #if CONFIG_VP9_HIGHBITDEPTH
94 static const arg_def_t outbitdeptharg =
95  ARG_DEF(NULL, "output-bit-depth", 1, "Output bit-depth for decoded frames");
96 #endif
97 static const arg_def_t svcdecodingarg = ARG_DEF(
98  NULL, "svc-decode-layer", 1, "Decode SVC stream up to given spatial layer");
99 static const arg_def_t framestatsarg =
100  ARG_DEF(NULL, "framestats", 1, "Output per-frame stats (.csv format)");
101 static const arg_def_t rowmtarg =
102  ARG_DEF(NULL, "row-mt", 1, "Enable multi-threading to run row-wise in VP9");
103 static const arg_def_t lpfoptarg =
104  ARG_DEF(NULL, "lpf-opt", 1,
105  "Do loopfilter without waiting for all threads to sync.");
106 
107 static const arg_def_t *all_args[] = { &help,
108  &codecarg,
109  &use_yv12,
110  &use_i420,
111  &flipuvarg,
112  &rawvideo,
113  &noblitarg,
114  &progressarg,
115  &limitarg,
116  &skiparg,
117  &postprocarg,
118  &summaryarg,
119  &outputfile,
120  &threadsarg,
121  &frameparallelarg,
122  &verbosearg,
123  &scalearg,
124  &fb_arg,
125  &md5arg,
126  &error_concealment,
127  &continuearg,
128 #if CONFIG_VP9_HIGHBITDEPTH
129  &outbitdeptharg,
130 #endif
131  &svcdecodingarg,
132  &framestatsarg,
133  &rowmtarg,
134  &lpfoptarg,
135  NULL };
136 
137 #if CONFIG_VP8_DECODER
138 static const arg_def_t addnoise_level =
139  ARG_DEF(NULL, "noise-level", 1, "Enable VP8 postproc add noise");
140 static const arg_def_t deblock =
141  ARG_DEF(NULL, "deblock", 0, "Enable VP8 deblocking");
142 static const arg_def_t demacroblock_level = ARG_DEF(
143  NULL, "demacroblock-level", 1, "Enable VP8 demacroblocking, w/ level");
144 static const arg_def_t mfqe =
145  ARG_DEF(NULL, "mfqe", 0, "Enable multiframe quality enhancement");
146 
147 static const arg_def_t *vp8_pp_args[] = { &addnoise_level, &deblock,
148  &demacroblock_level, &mfqe, NULL };
149 #endif
150 
151 #if CONFIG_LIBYUV
152 static INLINE int libyuv_scale(vpx_image_t *src, vpx_image_t *dst,
153  FilterModeEnum mode) {
154 #if CONFIG_VP9_HIGHBITDEPTH
155  if (src->fmt == VPX_IMG_FMT_I42016) {
156  assert(dst->fmt == VPX_IMG_FMT_I42016);
157  return I420Scale_16(
158  (uint16_t *)src->planes[VPX_PLANE_Y], src->stride[VPX_PLANE_Y] / 2,
159  (uint16_t *)src->planes[VPX_PLANE_U], src->stride[VPX_PLANE_U] / 2,
160  (uint16_t *)src->planes[VPX_PLANE_V], src->stride[VPX_PLANE_V] / 2,
161  src->d_w, src->d_h, (uint16_t *)dst->planes[VPX_PLANE_Y],
162  dst->stride[VPX_PLANE_Y] / 2, (uint16_t *)dst->planes[VPX_PLANE_U],
163  dst->stride[VPX_PLANE_U] / 2, (uint16_t *)dst->planes[VPX_PLANE_V],
164  dst->stride[VPX_PLANE_V] / 2, dst->d_w, dst->d_h, mode);
165  }
166 #endif
167  assert(src->fmt == VPX_IMG_FMT_I420);
168  assert(dst->fmt == VPX_IMG_FMT_I420);
169  return I420Scale(src->planes[VPX_PLANE_Y], src->stride[VPX_PLANE_Y],
170  src->planes[VPX_PLANE_U], src->stride[VPX_PLANE_U],
171  src->planes[VPX_PLANE_V], src->stride[VPX_PLANE_V], src->d_w,
172  src->d_h, dst->planes[VPX_PLANE_Y], dst->stride[VPX_PLANE_Y],
173  dst->planes[VPX_PLANE_U], dst->stride[VPX_PLANE_U],
174  dst->planes[VPX_PLANE_V], dst->stride[VPX_PLANE_V], dst->d_w,
175  dst->d_h, mode);
176 }
177 #endif
178 static void show_help(FILE *fout, int shorthelp) {
179  int i;
180 
181  fprintf(fout, "Usage: %s <options> filename\n\n", exec_name);
182 
183  if (shorthelp) {
184  fprintf(fout, "Use --help to see the full list of options.\n");
185  return;
186  }
187 
188  fprintf(fout, "Options:\n");
189  arg_show_usage(fout, all_args);
190 #if CONFIG_VP8_DECODER
191  fprintf(fout, "\nVP8 Postprocessing Options:\n");
192  arg_show_usage(fout, vp8_pp_args);
193 #endif
194  fprintf(fout,
195  "\nOutput File Patterns:\n\n"
196  " The -o argument specifies the name of the file(s) to "
197  "write to. If the\n argument does not include any escape "
198  "characters, the output will be\n written to a single file. "
199  "Otherwise, the filename will be calculated by\n expanding "
200  "the following escape characters:\n");
201  fprintf(fout,
202  "\n\t%%w - Frame width"
203  "\n\t%%h - Frame height"
204  "\n\t%%<n> - Frame number, zero padded to <n> places (1..9)"
205  "\n\n Pattern arguments are only supported in conjunction "
206  "with the --yv12 and\n --i420 options. If the -o option is "
207  "not specified, the output will be\n directed to stdout.\n");
208  fprintf(fout, "\nIncluded decoders:\n\n");
209 
210  for (i = 0; i < get_vpx_decoder_count(); ++i) {
211  const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
212  fprintf(fout, " %-6s - %s\n", decoder->name,
213  vpx_codec_iface_name(decoder->codec_interface()));
214  }
215 }
216 
217 void usage_exit(void) {
218  show_help(stderr, 1);
219  exit(EXIT_FAILURE);
220 }
221 
222 static int raw_read_frame(FILE *infile, uint8_t **buffer, size_t *bytes_read,
223  size_t *buffer_size) {
224  char raw_hdr[RAW_FRAME_HDR_SZ];
225  size_t frame_size = 0;
226 
227  if (fread(raw_hdr, RAW_FRAME_HDR_SZ, 1, infile) != 1) {
228  if (!feof(infile)) warn("Failed to read RAW frame size\n");
229  } else {
230  const size_t kCorruptFrameThreshold = 256 * 1024 * 1024;
231  const size_t kFrameTooSmallThreshold = 256 * 1024;
232  frame_size = mem_get_le32(raw_hdr);
233 
234  if (frame_size > kCorruptFrameThreshold) {
235  warn("Read invalid frame size (%u)\n", (unsigned int)frame_size);
236  frame_size = 0;
237  }
238 
239  if (frame_size < kFrameTooSmallThreshold) {
240  warn("Warning: Read invalid frame size (%u) - not a raw file?\n",
241  (unsigned int)frame_size);
242  }
243 
244  if (frame_size > *buffer_size) {
245  uint8_t *new_buf = realloc(*buffer, 2 * frame_size);
246  if (new_buf) {
247  *buffer = new_buf;
248  *buffer_size = 2 * frame_size;
249  } else {
250  warn("Failed to allocate compressed data buffer\n");
251  frame_size = 0;
252  }
253  }
254  }
255 
256  if (!feof(infile)) {
257  if (fread(*buffer, 1, frame_size, infile) != frame_size) {
258  warn("Failed to read full frame\n");
259  return 1;
260  }
261  *bytes_read = frame_size;
262  return 0;
263  }
264 
265  return 1;
266 }
267 
268 static int dec_read_frame(struct VpxDecInputContext *input, uint8_t **buf,
269  size_t *bytes_in_buffer, size_t *buffer_size) {
270  switch (input->vpx_input_ctx->file_type) {
271 #if CONFIG_WEBM_IO
272  case FILE_TYPE_WEBM:
273  return webm_read_frame(input->webm_ctx, buf, bytes_in_buffer);
274 #endif
275  case FILE_TYPE_RAW:
276  return raw_read_frame(input->vpx_input_ctx->file, buf, bytes_in_buffer,
277  buffer_size);
278  case FILE_TYPE_IVF:
279  return ivf_read_frame(input->vpx_input_ctx->file, buf, bytes_in_buffer,
280  buffer_size);
281  default: return 1;
282  }
283 }
284 
285 static void update_image_md5(const vpx_image_t *img, const int planes[3],
286  MD5Context *md5) {
287  int i, y;
288 
289  for (i = 0; i < 3; ++i) {
290  const int plane = planes[i];
291  const unsigned char *buf = img->planes[plane];
292  const int stride = img->stride[plane];
293  const int w = vpx_img_plane_width(img, plane) *
294  ((img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
295  const int h = vpx_img_plane_height(img, plane);
296 
297  for (y = 0; y < h; ++y) {
298  MD5Update(md5, buf, w);
299  buf += stride;
300  }
301  }
302 }
303 
304 static void write_image_file(const vpx_image_t *img, const int planes[3],
305  FILE *file) {
306  int i, y;
307 #if CONFIG_VP9_HIGHBITDEPTH
308  const int bytes_per_sample = ((img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
309 #else
310  const int bytes_per_sample = 1;
311 #endif
312 
313  for (i = 0; i < 3; ++i) {
314  const int plane = planes[i];
315  const unsigned char *buf = img->planes[plane];
316  const int stride = img->stride[plane];
317  const int w = vpx_img_plane_width(img, plane);
318  const int h = vpx_img_plane_height(img, plane);
319 
320  for (y = 0; y < h; ++y) {
321  fwrite(buf, bytes_per_sample, w, file);
322  buf += stride;
323  }
324  }
325 }
326 
327 static int file_is_raw(struct VpxInputContext *input) {
328  uint8_t buf[32];
329  int is_raw = 0;
331 
332  si.sz = sizeof(si);
333 
334  if (fread(buf, 1, 32, input->file) == 32) {
335  int i;
336 
337  if (mem_get_le32(buf) < 256 * 1024 * 1024) {
338  for (i = 0; i < get_vpx_decoder_count(); ++i) {
339  const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
340  if (!vpx_codec_peek_stream_info(decoder->codec_interface(), buf + 4,
341  32 - 4, &si)) {
342  is_raw = 1;
343  input->fourcc = decoder->fourcc;
344  input->width = si.w;
345  input->height = si.h;
346  input->framerate.numerator = 30;
347  input->framerate.denominator = 1;
348  break;
349  }
350  }
351  }
352  }
353 
354  rewind(input->file);
355  return is_raw;
356 }
357 
358 static void show_progress(int frame_in, int frame_out, uint64_t dx_time) {
359  fprintf(stderr,
360  "%d decoded frames/%d showed frames in %" PRId64 " us (%.2f fps)\r",
361  frame_in, frame_out, dx_time,
362  (double)frame_out * 1000000.0 / (double)dx_time);
363 }
364 
365 struct ExternalFrameBuffer {
366  uint8_t *data;
367  size_t size;
368  int in_use;
369 };
370 
371 struct ExternalFrameBufferList {
372  int num_external_frame_buffers;
373  struct ExternalFrameBuffer *ext_fb;
374 };
375 
376 // Callback used by libvpx to request an external frame buffer. |cb_priv|
377 // Application private data passed into the set function. |min_size| is the
378 // minimum size in bytes needed to decode the next frame. |fb| pointer to the
379 // frame buffer.
380 static int get_vp9_frame_buffer(void *cb_priv, size_t min_size,
382  int i;
383  struct ExternalFrameBufferList *const ext_fb_list =
384  (struct ExternalFrameBufferList *)cb_priv;
385  if (ext_fb_list == NULL) return -1;
386 
387  // Find a free frame buffer.
388  for (i = 0; i < ext_fb_list->num_external_frame_buffers; ++i) {
389  if (!ext_fb_list->ext_fb[i].in_use) break;
390  }
391 
392  if (i == ext_fb_list->num_external_frame_buffers) return -1;
393 
394  if (ext_fb_list->ext_fb[i].size < min_size) {
395  free(ext_fb_list->ext_fb[i].data);
396  ext_fb_list->ext_fb[i].data = (uint8_t *)calloc(min_size, sizeof(uint8_t));
397  if (!ext_fb_list->ext_fb[i].data) return -1;
398 
399  ext_fb_list->ext_fb[i].size = min_size;
400  }
401 
402  fb->data = ext_fb_list->ext_fb[i].data;
403  fb->size = ext_fb_list->ext_fb[i].size;
404  ext_fb_list->ext_fb[i].in_use = 1;
405 
406  // Set the frame buffer's private data to point at the external frame buffer.
407  fb->priv = &ext_fb_list->ext_fb[i];
408  return 0;
409 }
410 
411 // Callback used by libvpx when there are no references to the frame buffer.
412 // |cb_priv| user private data passed into the set function. |fb| pointer
413 // to the frame buffer.
414 static int release_vp9_frame_buffer(void *cb_priv,
416  struct ExternalFrameBuffer *const ext_fb =
417  (struct ExternalFrameBuffer *)fb->priv;
418  (void)cb_priv;
419  ext_fb->in_use = 0;
420  return 0;
421 }
422 
423 static void generate_filename(const char *pattern, char *out, size_t q_len,
424  unsigned int d_w, unsigned int d_h,
425  unsigned int frame_in) {
426  const char *p = pattern;
427  char *q = out;
428 
429  do {
430  char *next_pat = strchr(p, '%');
431 
432  if (p == next_pat) {
433  size_t pat_len;
434 
435  /* parse the pattern */
436  q[q_len - 1] = '\0';
437  switch (p[1]) {
438  case 'w': snprintf(q, q_len - 1, "%d", d_w); break;
439  case 'h': snprintf(q, q_len - 1, "%d", d_h); break;
440  case '1': snprintf(q, q_len - 1, "%d", frame_in); break;
441  case '2': snprintf(q, q_len - 1, "%02d", frame_in); break;
442  case '3': snprintf(q, q_len - 1, "%03d", frame_in); break;
443  case '4': snprintf(q, q_len - 1, "%04d", frame_in); break;
444  case '5': snprintf(q, q_len - 1, "%05d", frame_in); break;
445  case '6': snprintf(q, q_len - 1, "%06d", frame_in); break;
446  case '7': snprintf(q, q_len - 1, "%07d", frame_in); break;
447  case '8': snprintf(q, q_len - 1, "%08d", frame_in); break;
448  case '9': snprintf(q, q_len - 1, "%09d", frame_in); break;
449  default: die("Unrecognized pattern %%%c\n", p[1]); break;
450  }
451 
452  pat_len = strlen(q);
453  if (pat_len >= q_len - 1) die("Output filename too long.\n");
454  q += pat_len;
455  p += 2;
456  q_len -= pat_len;
457  } else {
458  size_t copy_len;
459 
460  /* copy the next segment */
461  if (!next_pat)
462  copy_len = strlen(p);
463  else
464  copy_len = next_pat - p;
465 
466  if (copy_len >= q_len - 1) die("Output filename too long.\n");
467 
468  memcpy(q, p, copy_len);
469  q[copy_len] = '\0';
470  q += copy_len;
471  p += copy_len;
472  q_len -= copy_len;
473  }
474  } while (*p);
475 }
476 
477 static int is_single_file(const char *outfile_pattern) {
478  const char *p = outfile_pattern;
479 
480  do {
481  p = strchr(p, '%');
482  if (p && p[1] >= '1' && p[1] <= '9')
483  return 0; // pattern contains sequence number, so it's not unique
484  if (p) p++;
485  } while (p);
486 
487  return 1;
488 }
489 
490 static void print_md5(unsigned char digest[16], const char *filename) {
491  int i;
492 
493  for (i = 0; i < 16; ++i) printf("%02x", digest[i]);
494  printf(" %s\n", filename);
495 }
496 
497 static FILE *open_outfile(const char *name) {
498  if (strcmp("-", name) == 0) {
499  set_binary_mode(stdout);
500  return stdout;
501  } else {
502  FILE *file = fopen(name, "wb");
503  if (!file) fatal("Failed to open output file '%s'", name);
504  return file;
505  }
506 }
507 
508 #if CONFIG_VP9_HIGHBITDEPTH
509 static int img_shifted_realloc_required(const vpx_image_t *img,
510  const vpx_image_t *shifted,
511  vpx_img_fmt_t required_fmt) {
512  return img->d_w != shifted->d_w || img->d_h != shifted->d_h ||
513  required_fmt != shifted->fmt;
514 }
515 #endif
516 
517 static int main_loop(int argc, const char **argv_) {
518  vpx_codec_ctx_t decoder;
519  char *fn = NULL;
520  int i;
521  int ret = EXIT_FAILURE;
522  uint8_t *buf = NULL;
523  size_t bytes_in_buffer = 0, buffer_size = 0;
524  FILE *infile;
525  int frame_in = 0, frame_out = 0, flipuv = 0, noblit = 0;
526  int do_md5 = 0, progress = 0;
527  int stop_after = 0, postproc = 0, summary = 0, quiet = 1;
528  int arg_skip = 0;
529  int ec_enabled = 0;
530  int keep_going = 0;
531  int enable_row_mt = 0;
532  int enable_lpf_opt = 0;
533  const VpxInterface *interface = NULL;
534  const VpxInterface *fourcc_interface = NULL;
535  uint64_t dx_time = 0;
536  struct arg arg;
537  char **argv, **argi, **argj;
538 
539  int single_file;
540  int use_y4m = 1;
541  int opt_yv12 = 0;
542  int opt_i420 = 0;
543  vpx_codec_dec_cfg_t cfg = { 0, 0, 0 };
544 #if CONFIG_VP9_HIGHBITDEPTH
545  unsigned int output_bit_depth = 0;
546 #endif
547  int svc_decoding = 0;
548  int svc_spatial_layer = 0;
549 #if CONFIG_VP8_DECODER
550  vp8_postproc_cfg_t vp8_pp_cfg = { 0, 0, 0 };
551 #endif
552  int frames_corrupted = 0;
553  int dec_flags = 0;
554  int do_scale = 0;
555  vpx_image_t *scaled_img = NULL;
556 #if CONFIG_VP9_HIGHBITDEPTH
557  vpx_image_t *img_shifted = NULL;
558 #endif
559  int frame_avail, got_data, flush_decoder = 0;
560  int num_external_frame_buffers = 0;
561  struct ExternalFrameBufferList ext_fb_list = { 0, NULL };
562 
563  const char *outfile_pattern = NULL;
564  char outfile_name[PATH_MAX] = { 0 };
565  FILE *outfile = NULL;
566 
567  FILE *framestats_file = NULL;
568 
569  MD5Context md5_ctx;
570  unsigned char md5_digest[16];
571 
572  struct VpxDecInputContext input = { NULL, NULL };
573  struct VpxInputContext vpx_input_ctx;
574 #if CONFIG_WEBM_IO
575  struct WebmInputContext webm_ctx;
576  memset(&(webm_ctx), 0, sizeof(webm_ctx));
577  input.webm_ctx = &webm_ctx;
578 #endif
579  input.vpx_input_ctx = &vpx_input_ctx;
580 
581  /* Parse command line */
582  exec_name = argv_[0];
583  argv = argv_dup(argc - 1, argv_ + 1);
584  if (!argv) {
585  fprintf(stderr, "Error allocating argument list\n");
586  return EXIT_FAILURE;
587  }
588  for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
589  memset(&arg, 0, sizeof(arg));
590  arg.argv_step = 1;
591 
592  if (arg_match(&arg, &help, argi)) {
593  show_help(stdout, 0);
594  exit(EXIT_SUCCESS);
595  } else if (arg_match(&arg, &codecarg, argi)) {
596  interface = get_vpx_decoder_by_name(arg.val);
597  if (!interface)
598  die("Error: Unrecognized argument (%s) to --codec\n", arg.val);
599  } else if (arg_match(&arg, &looparg, argi)) {
600  // no-op
601  } else if (arg_match(&arg, &outputfile, argi))
602  outfile_pattern = arg.val;
603  else if (arg_match(&arg, &use_yv12, argi)) {
604  use_y4m = 0;
605  flipuv = 1;
606  opt_yv12 = 1;
607  } else if (arg_match(&arg, &use_i420, argi)) {
608  use_y4m = 0;
609  flipuv = 0;
610  opt_i420 = 1;
611  } else if (arg_match(&arg, &rawvideo, argi)) {
612  use_y4m = 0;
613  } else if (arg_match(&arg, &flipuvarg, argi))
614  flipuv = 1;
615  else if (arg_match(&arg, &noblitarg, argi))
616  noblit = 1;
617  else if (arg_match(&arg, &progressarg, argi))
618  progress = 1;
619  else if (arg_match(&arg, &limitarg, argi))
620  stop_after = arg_parse_uint(&arg);
621  else if (arg_match(&arg, &skiparg, argi))
622  arg_skip = arg_parse_uint(&arg);
623  else if (arg_match(&arg, &postprocarg, argi))
624  postproc = 1;
625  else if (arg_match(&arg, &md5arg, argi))
626  do_md5 = 1;
627  else if (arg_match(&arg, &summaryarg, argi))
628  summary = 1;
629  else if (arg_match(&arg, &threadsarg, argi))
630  cfg.threads = arg_parse_uint(&arg);
631 #if CONFIG_VP9_DECODER
632  else if (arg_match(&arg, &frameparallelarg, argi)) {
633  /* ignored for compatibility */
634  }
635 #endif
636  else if (arg_match(&arg, &verbosearg, argi))
637  quiet = 0;
638  else if (arg_match(&arg, &scalearg, argi))
639  do_scale = 1;
640  else if (arg_match(&arg, &fb_arg, argi))
641  num_external_frame_buffers = arg_parse_uint(&arg);
642  else if (arg_match(&arg, &continuearg, argi))
643  keep_going = 1;
644 #if CONFIG_VP9_HIGHBITDEPTH
645  else if (arg_match(&arg, &outbitdeptharg, argi)) {
646  output_bit_depth = arg_parse_uint(&arg);
647  }
648 #endif
649  else if (arg_match(&arg, &svcdecodingarg, argi)) {
650  svc_decoding = 1;
651  svc_spatial_layer = arg_parse_uint(&arg);
652  } else if (arg_match(&arg, &framestatsarg, argi)) {
653  framestats_file = fopen(arg.val, "w");
654  if (!framestats_file) {
655  die("Error: Could not open --framestats file (%s) for writing.\n",
656  arg.val);
657  }
658  } else if (arg_match(&arg, &rowmtarg, argi)) {
659  enable_row_mt = arg_parse_uint(&arg);
660  } else if (arg_match(&arg, &lpfoptarg, argi)) {
661  enable_lpf_opt = arg_parse_uint(&arg);
662  }
663 #if CONFIG_VP8_DECODER
664  else if (arg_match(&arg, &addnoise_level, argi)) {
665  postproc = 1;
666  vp8_pp_cfg.post_proc_flag |= VP8_ADDNOISE;
667  vp8_pp_cfg.noise_level = arg_parse_uint(&arg);
668  } else if (arg_match(&arg, &demacroblock_level, argi)) {
669  postproc = 1;
670  vp8_pp_cfg.post_proc_flag |= VP8_DEMACROBLOCK;
671  vp8_pp_cfg.deblocking_level = arg_parse_uint(&arg);
672  } else if (arg_match(&arg, &deblock, argi)) {
673  postproc = 1;
674  vp8_pp_cfg.post_proc_flag |= VP8_DEBLOCK;
675  } else if (arg_match(&arg, &mfqe, argi)) {
676  postproc = 1;
677  vp8_pp_cfg.post_proc_flag |= VP8_MFQE;
678  } else if (arg_match(&arg, &error_concealment, argi)) {
679  ec_enabled = 1;
680  }
681 #endif // CONFIG_VP8_DECODER
682  else
683  argj++;
684  }
685 
686  /* Check for unrecognized options */
687  for (argi = argv; *argi; argi++)
688  if (argi[0][0] == '-' && strlen(argi[0]) > 1)
689  die("Error: Unrecognized option %s\n", *argi);
690 
691  /* Handle non-option arguments */
692  fn = argv[0];
693 
694  if (!fn) {
695  free(argv);
696  fprintf(stderr, "No input file specified!\n");
697  usage_exit();
698  }
699  /* Open file */
700  infile = strcmp(fn, "-") ? fopen(fn, "rb") : set_binary_mode(stdin);
701 
702  if (!infile) {
703  fatal("Failed to open input file '%s'", strcmp(fn, "-") ? fn : "stdin");
704  }
705 #if CONFIG_OS_SUPPORT
706  /* Make sure we don't dump to the terminal, unless forced to with -o - */
707  if (!outfile_pattern && isatty(fileno(stdout)) && !do_md5 && !noblit) {
708  fprintf(stderr,
709  "Not dumping raw video to your terminal. Use '-o -' to "
710  "override.\n");
711  return EXIT_FAILURE;
712  }
713 #endif
714  input.vpx_input_ctx->file = infile;
715  if (file_is_ivf(input.vpx_input_ctx))
716  input.vpx_input_ctx->file_type = FILE_TYPE_IVF;
717 #if CONFIG_WEBM_IO
718  else if (file_is_webm(input.webm_ctx, input.vpx_input_ctx))
719  input.vpx_input_ctx->file_type = FILE_TYPE_WEBM;
720 #endif
721  else if (file_is_raw(input.vpx_input_ctx))
722  input.vpx_input_ctx->file_type = FILE_TYPE_RAW;
723  else {
724  fprintf(stderr, "Unrecognized input file type.\n");
725 #if !CONFIG_WEBM_IO
726  fprintf(stderr, "vpxdec was built without WebM container support.\n");
727 #endif
728  free(argv);
729  return EXIT_FAILURE;
730  }
731 
732  outfile_pattern = outfile_pattern ? outfile_pattern : "-";
733  single_file = is_single_file(outfile_pattern);
734 
735  if (!noblit && single_file) {
736  generate_filename(outfile_pattern, outfile_name, PATH_MAX,
737  vpx_input_ctx.width, vpx_input_ctx.height, 0);
738  if (do_md5)
739  MD5Init(&md5_ctx);
740  else
741  outfile = open_outfile(outfile_name);
742  }
743 
744  if (use_y4m && !noblit) {
745  if (!single_file) {
746  fprintf(stderr,
747  "YUV4MPEG2 not supported with output patterns,"
748  " try --i420 or --yv12 or --rawvideo.\n");
749  return EXIT_FAILURE;
750  }
751 
752 #if CONFIG_WEBM_IO
753  if (vpx_input_ctx.file_type == FILE_TYPE_WEBM) {
754  if (webm_guess_framerate(input.webm_ctx, input.vpx_input_ctx)) {
755  fprintf(stderr,
756  "Failed to guess framerate -- error parsing "
757  "webm file?\n");
758  return EXIT_FAILURE;
759  }
760  }
761 #endif
762  }
763 
764  fourcc_interface = get_vpx_decoder_by_fourcc(vpx_input_ctx.fourcc);
765  if (interface && fourcc_interface && interface != fourcc_interface)
766  warn("Header indicates codec: %s\n", fourcc_interface->name);
767  else
768  interface = fourcc_interface;
769 
770  if (!interface) interface = get_vpx_decoder_by_index(0);
771 
772  dec_flags = (postproc ? VPX_CODEC_USE_POSTPROC : 0) |
773  (ec_enabled ? VPX_CODEC_USE_ERROR_CONCEALMENT : 0);
774  if (vpx_codec_dec_init(&decoder, interface->codec_interface(), &cfg,
775  dec_flags)) {
776  fprintf(stderr, "Failed to initialize decoder: %s\n",
777  vpx_codec_error(&decoder));
778  goto fail2;
779  }
780  if (svc_decoding) {
782  svc_spatial_layer)) {
783  fprintf(stderr, "Failed to set spatial layer for svc decode: %s\n",
784  vpx_codec_error(&decoder));
785  goto fail;
786  }
787  }
788  if (interface->fourcc == VP9_FOURCC &&
789  vpx_codec_control(&decoder, VP9D_SET_ROW_MT, enable_row_mt)) {
790  fprintf(stderr, "Failed to set decoder in row multi-thread mode: %s\n",
791  vpx_codec_error(&decoder));
792  goto fail;
793  }
794  if (interface->fourcc == VP9_FOURCC &&
795  vpx_codec_control(&decoder, VP9D_SET_LOOP_FILTER_OPT, enable_lpf_opt)) {
796  fprintf(stderr, "Failed to set decoder in optimized loopfilter mode: %s\n",
797  vpx_codec_error(&decoder));
798  goto fail;
799  }
800  if (!quiet) fprintf(stderr, "%s\n", decoder.name);
801 
802 #if CONFIG_VP8_DECODER
803  if (vp8_pp_cfg.post_proc_flag &&
804  vpx_codec_control(&decoder, VP8_SET_POSTPROC, &vp8_pp_cfg)) {
805  fprintf(stderr, "Failed to configure postproc: %s\n",
806  vpx_codec_error(&decoder));
807  goto fail;
808  }
809 #endif
810 
811  if (arg_skip) fprintf(stderr, "Skipping first %d frames.\n", arg_skip);
812  while (arg_skip) {
813  if (dec_read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) break;
814  arg_skip--;
815  }
816 
817  if (num_external_frame_buffers > 0) {
818  ext_fb_list.num_external_frame_buffers = num_external_frame_buffers;
819  ext_fb_list.ext_fb = (struct ExternalFrameBuffer *)calloc(
820  num_external_frame_buffers, sizeof(*ext_fb_list.ext_fb));
821  if (!ext_fb_list.ext_fb) {
822  fprintf(stderr, "Failed to allocate ExternalFrameBuffer\n");
823  goto fail;
824  }
825  if (vpx_codec_set_frame_buffer_functions(&decoder, get_vp9_frame_buffer,
826  release_vp9_frame_buffer,
827  &ext_fb_list)) {
828  fprintf(stderr, "Failed to configure external frame buffers: %s\n",
829  vpx_codec_error(&decoder));
830  goto fail;
831  }
832  }
833 
834  frame_avail = 1;
835  got_data = 0;
836 
837  if (framestats_file) fprintf(framestats_file, "bytes,qp\n");
838 
839  /* Decode file */
840  while (frame_avail || got_data) {
841  vpx_codec_iter_t iter = NULL;
842  vpx_image_t *img;
843  struct vpx_usec_timer timer;
844  int corrupted = 0;
845 
846  frame_avail = 0;
847  if (!stop_after || frame_in < stop_after) {
848  if (!dec_read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) {
849  frame_avail = 1;
850  frame_in++;
851 
852  vpx_usec_timer_start(&timer);
853 
854  if (vpx_codec_decode(&decoder, buf, (unsigned int)bytes_in_buffer, NULL,
855  0)) {
856  const char *detail = vpx_codec_error_detail(&decoder);
857  warn("Failed to decode frame %d: %s", frame_in,
858  vpx_codec_error(&decoder));
859  if (detail) warn("Additional information: %s", detail);
860  corrupted = 1;
861  if (!keep_going) goto fail;
862  }
863 
864  if (framestats_file) {
865  int qp;
866  if (vpx_codec_control(&decoder, VPXD_GET_LAST_QUANTIZER, &qp)) {
867  warn("Failed VPXD_GET_LAST_QUANTIZER: %s",
868  vpx_codec_error(&decoder));
869  if (!keep_going) goto fail;
870  }
871  fprintf(framestats_file, "%d,%d\n", (int)bytes_in_buffer, qp);
872  }
873 
874  vpx_usec_timer_mark(&timer);
875  dx_time += vpx_usec_timer_elapsed(&timer);
876  } else {
877  flush_decoder = 1;
878  }
879  } else {
880  flush_decoder = 1;
881  }
882 
883  vpx_usec_timer_start(&timer);
884 
885  if (flush_decoder) {
886  // Flush the decoder in frame parallel decode.
887  if (vpx_codec_decode(&decoder, NULL, 0, NULL, 0)) {
888  warn("Failed to flush decoder: %s", vpx_codec_error(&decoder));
889  corrupted = 1;
890  if (!keep_going) goto fail;
891  }
892  }
893 
894  got_data = 0;
895  if ((img = vpx_codec_get_frame(&decoder, &iter))) {
896  ++frame_out;
897  got_data = 1;
898  }
899 
900  vpx_usec_timer_mark(&timer);
901  dx_time += (unsigned int)vpx_usec_timer_elapsed(&timer);
902 
903  if (!corrupted &&
904  vpx_codec_control(&decoder, VP8D_GET_FRAME_CORRUPTED, &corrupted)) {
905  warn("Failed VP8_GET_FRAME_CORRUPTED: %s", vpx_codec_error(&decoder));
906  if (!keep_going) goto fail;
907  }
908  frames_corrupted += corrupted;
909 
910  if (progress) show_progress(frame_in, frame_out, dx_time);
911 
912  if (!noblit && img) {
913  const int PLANES_YUV[] = { VPX_PLANE_Y, VPX_PLANE_U, VPX_PLANE_V };
914  const int PLANES_YVU[] = { VPX_PLANE_Y, VPX_PLANE_V, VPX_PLANE_U };
915  const int *planes = flipuv ? PLANES_YVU : PLANES_YUV;
916 
917  if (do_scale) {
918  if (frame_out == 1) {
919  // If the output frames are to be scaled to a fixed display size then
920  // use the width and height specified in the container. If either of
921  // these is set to 0, use the display size set in the first frame
922  // header. If that is unavailable, use the raw decoded size of the
923  // first decoded frame.
924  int render_width = vpx_input_ctx.width;
925  int render_height = vpx_input_ctx.height;
926  if (!render_width || !render_height) {
927  int render_size[2];
929  render_size)) {
930  // As last resort use size of first frame as display size.
931  render_width = img->d_w;
932  render_height = img->d_h;
933  } else {
934  render_width = render_size[0];
935  render_height = render_size[1];
936  }
937  }
938  scaled_img =
939  vpx_img_alloc(NULL, img->fmt, render_width, render_height, 16);
940  if (!scaled_img) {
941  fprintf(stderr, "Failed to allocate scaled image (%d x %d)\n",
942  render_width, render_height);
943  goto fail;
944  }
945  scaled_img->bit_depth = img->bit_depth;
946  }
947 
948  if (img->d_w != scaled_img->d_w || img->d_h != scaled_img->d_h) {
949 #if CONFIG_LIBYUV
950  libyuv_scale(img, scaled_img, kFilterBox);
951  img = scaled_img;
952 #else
953  fprintf(stderr,
954  "Failed to scale output frame: %s.\n"
955  "Scaling is disabled in this configuration. "
956  "To enable scaling, configure with --enable-libyuv\n",
957  vpx_codec_error(&decoder));
958  goto fail;
959 #endif
960  }
961  }
962 #if CONFIG_VP9_HIGHBITDEPTH
963  // Default to codec bit depth if output bit depth not set
964  if (!output_bit_depth && single_file && !do_md5) {
965  output_bit_depth = img->bit_depth;
966  }
967  // Shift up or down if necessary
968  if (output_bit_depth != 0 && output_bit_depth != img->bit_depth) {
969  const vpx_img_fmt_t shifted_fmt =
970  output_bit_depth == 8
971  ? img->fmt ^ (img->fmt & VPX_IMG_FMT_HIGHBITDEPTH)
972  : img->fmt | VPX_IMG_FMT_HIGHBITDEPTH;
973  if (img_shifted &&
974  img_shifted_realloc_required(img, img_shifted, shifted_fmt)) {
975  vpx_img_free(img_shifted);
976  img_shifted = NULL;
977  }
978  if (!img_shifted) {
979  img_shifted =
980  vpx_img_alloc(NULL, shifted_fmt, img->d_w, img->d_h, 16);
981  if (!img_shifted) {
982  fprintf(stderr, "Failed to allocate image\n");
983  goto fail;
984  }
985  img_shifted->bit_depth = output_bit_depth;
986  }
987  if (output_bit_depth > img->bit_depth) {
988  vpx_img_upshift(img_shifted, img, output_bit_depth - img->bit_depth);
989  } else {
990  vpx_img_downshift(img_shifted, img,
991  img->bit_depth - output_bit_depth);
992  }
993  img = img_shifted;
994  }
995 #endif
996 
997  if (single_file) {
998  if (use_y4m) {
999  char buf[Y4M_BUFFER_SIZE] = { 0 };
1000  size_t len = 0;
1001  if (img->fmt == VPX_IMG_FMT_I440 || img->fmt == VPX_IMG_FMT_I44016) {
1002  fprintf(stderr, "Cannot produce y4m output for 440 sampling.\n");
1003  goto fail;
1004  }
1005  if (frame_out == 1) {
1006  // Y4M file header
1007  len = y4m_write_file_header(
1008  buf, sizeof(buf), vpx_input_ctx.width, vpx_input_ctx.height,
1009  &vpx_input_ctx.framerate, img->fmt, img->bit_depth);
1010  if (do_md5) {
1011  MD5Update(&md5_ctx, (md5byte *)buf, (unsigned int)len);
1012  } else {
1013  fputs(buf, outfile);
1014  }
1015  }
1016 
1017  // Y4M frame header
1018  len = y4m_write_frame_header(buf, sizeof(buf));
1019  if (do_md5) {
1020  MD5Update(&md5_ctx, (md5byte *)buf, (unsigned int)len);
1021  } else {
1022  fputs(buf, outfile);
1023  }
1024  } else {
1025  if (frame_out == 1) {
1026  // Check if --yv12 or --i420 options are consistent with the
1027  // bit-stream decoded
1028  if (opt_i420) {
1029  if (img->fmt != VPX_IMG_FMT_I420 &&
1030  img->fmt != VPX_IMG_FMT_I42016) {
1031  fprintf(stderr, "Cannot produce i420 output for bit-stream.\n");
1032  goto fail;
1033  }
1034  }
1035  if (opt_yv12) {
1036  if ((img->fmt != VPX_IMG_FMT_I420 &&
1037  img->fmt != VPX_IMG_FMT_YV12) ||
1038  img->bit_depth != 8) {
1039  fprintf(stderr, "Cannot produce yv12 output for bit-stream.\n");
1040  goto fail;
1041  }
1042  }
1043  }
1044  }
1045 
1046  if (do_md5) {
1047  update_image_md5(img, planes, &md5_ctx);
1048  } else {
1049  if (!corrupted) write_image_file(img, planes, outfile);
1050  }
1051  } else {
1052  generate_filename(outfile_pattern, outfile_name, PATH_MAX, img->d_w,
1053  img->d_h, frame_in);
1054  if (do_md5) {
1055  MD5Init(&md5_ctx);
1056  update_image_md5(img, planes, &md5_ctx);
1057  MD5Final(md5_digest, &md5_ctx);
1058  print_md5(md5_digest, outfile_name);
1059  } else {
1060  outfile = open_outfile(outfile_name);
1061  write_image_file(img, planes, outfile);
1062  fclose(outfile);
1063  }
1064  }
1065  }
1066  }
1067 
1068  if (summary || progress) {
1069  show_progress(frame_in, frame_out, dx_time);
1070  fprintf(stderr, "\n");
1071  }
1072 
1073  if (frames_corrupted) {
1074  fprintf(stderr, "WARNING: %d frames corrupted.\n", frames_corrupted);
1075  } else {
1076  ret = EXIT_SUCCESS;
1077  }
1078 
1079 fail:
1080 
1081  if (vpx_codec_destroy(&decoder)) {
1082  fprintf(stderr, "Failed to destroy decoder: %s\n",
1083  vpx_codec_error(&decoder));
1084  }
1085 
1086 fail2:
1087 
1088  if (!noblit && single_file) {
1089  if (do_md5) {
1090  MD5Final(md5_digest, &md5_ctx);
1091  print_md5(md5_digest, outfile_name);
1092  } else {
1093  fclose(outfile);
1094  }
1095  }
1096 
1097 #if CONFIG_WEBM_IO
1098  if (input.vpx_input_ctx->file_type == FILE_TYPE_WEBM)
1099  webm_free(input.webm_ctx);
1100 #endif
1101 
1102  if (input.vpx_input_ctx->file_type != FILE_TYPE_WEBM) free(buf);
1103 
1104  if (scaled_img) vpx_img_free(scaled_img);
1105 #if CONFIG_VP9_HIGHBITDEPTH
1106  if (img_shifted) vpx_img_free(img_shifted);
1107 #endif
1108 
1109  for (i = 0; i < ext_fb_list.num_external_frame_buffers; ++i) {
1110  free(ext_fb_list.ext_fb[i].data);
1111  }
1112  free(ext_fb_list.ext_fb);
1113 
1114  fclose(infile);
1115  if (framestats_file) fclose(framestats_file);
1116 
1117  free(argv);
1118 
1119  return ret;
1120 }
1121 
1122 int main(int argc, const char **argv_) {
1123  unsigned int loops = 1, i;
1124  char **argv, **argi, **argj;
1125  struct arg arg;
1126  int error = 0;
1127 
1128  argv = argv_dup(argc - 1, argv_ + 1);
1129  if (!argv) {
1130  fprintf(stderr, "Error allocating argument list\n");
1131  return EXIT_FAILURE;
1132  }
1133  for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
1134  memset(&arg, 0, sizeof(arg));
1135  arg.argv_step = 1;
1136 
1137  if (arg_match(&arg, &looparg, argi)) {
1138  loops = arg_parse_uint(&arg);
1139  break;
1140  }
1141  }
1142  free(argv);
1143  for (i = 0; !error && i < loops; i++) error = main_loop(argc, argv_);
1144  return error;
1145 }
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.
const char * vpx_codec_error_detail(vpx_codec_ctx_t *ctx)
Retrieve detailed error information for codec context.
const char * vpx_codec_error(vpx_codec_ctx_t *ctx)
Retrieve error synopsis for codec context.
vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx)
Destroy a codec instance.
const void * vpx_codec_iter_t
Iterator.
Definition: vpx_codec.h:190
const char * vpx_codec_iface_name(vpx_codec_iface_t *iface)
Return the name for a given interface.
#define vpx_codec_control(ctx, id, data)
vpx_codec_control wrapper macro
Definition: vpx_codec.h:407
vpx_image_t * vpx_codec_get_frame(vpx_codec_ctx_t *ctx, vpx_codec_iter_t *iter)
Decoded frames iterator.
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.
#define VPX_CODEC_USE_ERROR_CONCEALMENT
Conceal errors in decoded frames.
Definition: vpx_decoder.h:75
#define VPX_CODEC_USE_POSTPROC
Initialization-time Feature Enabling.
Definition: vpx_decoder.h:73
#define vpx_codec_dec_init(ctx, iface, cfg, flags)
Convenience macro for vpx_codec_dec_init_ver()
Definition: vpx_decoder.h:143
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.
@ VP9D_SET_ROW_MT
Codec control function to set row level multi-threading.
Definition: vp8dx.h:149
@ VP9D_SET_LOOP_FILTER_OPT
Codec control function to set loopfilter optimization.
Definition: vp8dx.h:159
@ VPXD_GET_LAST_QUANTIZER
Codec control function to get last decoded frame quantizer.
Definition: vp8dx.h:141
@ VP9_DECODE_SVC_SPATIAL_LAYER
Definition: vp8dx.h:133
@ VP9D_GET_DISPLAY_SIZE
Definition: vp8dx.h:101
@ VP8D_GET_FRAME_CORRUPTED
Definition: vp8dx.h:79
@ VP8_SET_POSTPROC
Definition: vp8.h:49
post process flags
Definition: vp8.h:79
int noise_level
Definition: vp8.h:84
int post_proc_flag
the types of post processing to be done, should be combination of "vp8_postproc_level"
Definition: vp8.h:82
int deblocking_level
Definition: vp8.h:83
Codec context structure.
Definition: vpx_codec.h:200
const char * name
Definition: vpx_codec.h:201
Initialization Configurations.
Definition: vpx_decoder.h:106
unsigned int threads
Definition: vpx_decoder.h:107
External frame buffer.
Definition: vpx_frame_buffer.h:39
void * priv
Definition: vpx_frame_buffer.h:42
size_t size
Definition: vpx_frame_buffer.h:41
uint8_t * data
Definition: vpx_frame_buffer.h:40
Stream properties.
Definition: vpx_decoder.h:88
unsigned int sz
Definition: vpx_decoder.h:89
unsigned int w
Definition: vpx_decoder.h:90
unsigned int h
Definition: vpx_decoder.h:91
Image Descriptor.
Definition: vpx_image.h:72
vpx_img_fmt_t fmt
Definition: vpx_image.h:73
unsigned int d_h
Definition: vpx_image.h:84
unsigned int d_w
Definition: vpx_image.h:83
unsigned int bit_depth
Definition: vpx_image.h:80
unsigned char * planes[4]
Definition: vpx_image.h:100
int stride[4]
Definition: vpx_image.h:101
Provides definitions for using VP8 or VP9 within the vpx Decoder interface.
Describes the decoder algorithm interface to applications.
#define VPX_PLANE_Y
Definition: vpx_image.h:96
#define VPX_IMG_FMT_HIGHBITDEPTH
Definition: vpx_image.h:35
#define VPX_PLANE_U
Definition: vpx_image.h:97
@ VPX_IMG_FMT_I44016
Definition: vpx_image.h:50
@ VPX_IMG_FMT_YV12
Definition: vpx_image.h:40
@ VPX_IMG_FMT_I42016
Definition: vpx_image.h:47
@ VPX_IMG_FMT_I440
Definition: vpx_image.h:45
@ VPX_IMG_FMT_I420
Definition: vpx_image.h:42
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.
#define VPX_PLANE_V
Definition: vpx_image.h:98
enum vpx_img_fmt vpx_img_fmt_t
List of supported image formats.
void vpx_img_free(vpx_image_t *img)
Close an image descriptor.