vpxdec.c revision a72801d7d92ababb50eecf27a36bd222d031d2fe
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 "third_party/libyuv/include/libyuv/scale.h"
19
20#include "./args.h"
21#include "./ivfdec.h"
22
23#define VPX_CODEC_DISABLE_COMPAT 1
24#include "./vpx_config.h"
25#include "vpx/vpx_decoder.h"
26#include "vpx_ports/mem_ops.h"
27#include "vpx_ports/vpx_timer.h"
28
29#if CONFIG_VP8_DECODER || CONFIG_VP9_DECODER
30#include "vpx/vp8dx.h"
31#endif
32
33#include "./md5_utils.h"
34
35#include "./tools_common.h"
36#include "./webmdec.h"
37#include "./y4menc.h"
38
39static const char *exec_name;
40
41struct VpxDecInputContext {
42  struct VpxInputContext *vpx_input_ctx;
43  struct WebmInputContext *webm_ctx;
44};
45
46static const arg_def_t looparg = ARG_DEF(NULL, "loops", 1,
47                                          "Number of times to decode the file");
48static const arg_def_t codecarg = ARG_DEF(NULL, "codec", 1,
49                                          "Codec to use");
50static const arg_def_t use_yv12 = ARG_DEF(NULL, "yv12", 0,
51                                          "Output raw YV12 frames");
52static const arg_def_t use_i420 = ARG_DEF(NULL, "i420", 0,
53                                          "Output raw I420 frames");
54static const arg_def_t flipuvarg = ARG_DEF(NULL, "flipuv", 0,
55                                           "Flip the chroma planes in the output");
56static const arg_def_t noblitarg = ARG_DEF(NULL, "noblit", 0,
57                                           "Don't process the decoded frames");
58static const arg_def_t progressarg = ARG_DEF(NULL, "progress", 0,
59                                             "Show progress after each frame decodes");
60static const arg_def_t limitarg = ARG_DEF(NULL, "limit", 1,
61                                          "Stop decoding after n frames");
62static const arg_def_t skiparg = ARG_DEF(NULL, "skip", 1,
63                                         "Skip the first n input frames");
64static const arg_def_t postprocarg = ARG_DEF(NULL, "postproc", 0,
65                                             "Postprocess decoded frames");
66static const arg_def_t summaryarg = ARG_DEF(NULL, "summary", 0,
67                                            "Show timing summary");
68static const arg_def_t outputfile = ARG_DEF("o", "output", 1,
69                                            "Output file name pattern (see below)");
70static const arg_def_t threadsarg = ARG_DEF("t", "threads", 1,
71                                            "Max threads to use");
72static const arg_def_t verbosearg = ARG_DEF("v", "verbose", 0,
73                                            "Show version string");
74static const arg_def_t error_concealment = ARG_DEF(NULL, "error-concealment", 0,
75                                                   "Enable decoder error-concealment");
76static const arg_def_t scalearg = ARG_DEF("S", "scale", 0,
77                                            "Scale output frames uniformly");
78
79static const arg_def_t fb_arg =
80    ARG_DEF(NULL, "frame-buffers", 1, "Number of frame buffers to use");
81
82static const arg_def_t md5arg = ARG_DEF(NULL, "md5", 0,
83                                        "Compute the MD5 sum of the decoded frame");
84
85static const arg_def_t *all_args[] = {
86  &codecarg, &use_yv12, &use_i420, &flipuvarg, &noblitarg,
87  &progressarg, &limitarg, &skiparg, &postprocarg, &summaryarg, &outputfile,
88  &threadsarg, &verbosearg, &scalearg, &fb_arg,
89  &md5arg,
90  &error_concealment,
91  NULL
92};
93
94#if CONFIG_VP8_DECODER
95static const arg_def_t addnoise_level = ARG_DEF(NULL, "noise-level", 1,
96                                                "Enable VP8 postproc add noise");
97static const arg_def_t deblock = ARG_DEF(NULL, "deblock", 0,
98                                         "Enable VP8 deblocking");
99static const arg_def_t demacroblock_level = ARG_DEF(NULL, "demacroblock-level", 1,
100                                                    "Enable VP8 demacroblocking, w/ level");
101static const arg_def_t pp_debug_info = ARG_DEF(NULL, "pp-debug-info", 1,
102                                               "Enable VP8 visible debug info");
103static const arg_def_t pp_disp_ref_frame = ARG_DEF(NULL, "pp-dbg-ref-frame", 1,
104                                                   "Display only selected reference frame per macro block");
105static const arg_def_t pp_disp_mb_modes = ARG_DEF(NULL, "pp-dbg-mb-modes", 1,
106                                                  "Display only selected macro block modes");
107static const arg_def_t pp_disp_b_modes = ARG_DEF(NULL, "pp-dbg-b-modes", 1,
108                                                 "Display only selected block modes");
109static const arg_def_t pp_disp_mvs = ARG_DEF(NULL, "pp-dbg-mvs", 1,
110                                             "Draw only selected motion vectors");
111static const arg_def_t mfqe = ARG_DEF(NULL, "mfqe", 0,
112                                      "Enable multiframe quality enhancement");
113
114static const arg_def_t *vp8_pp_args[] = {
115  &addnoise_level, &deblock, &demacroblock_level, &pp_debug_info,
116  &pp_disp_ref_frame, &pp_disp_mb_modes, &pp_disp_b_modes, &pp_disp_mvs, &mfqe,
117  NULL
118};
119#endif
120
121static int vpx_image_scale(vpx_image_t *src, vpx_image_t *dst,
122                           FilterMode mode) {
123  assert(src->fmt == VPX_IMG_FMT_I420);
124  assert(dst->fmt == VPX_IMG_FMT_I420);
125  return I420Scale(src->planes[VPX_PLANE_Y], src->stride[VPX_PLANE_Y],
126                   src->planes[VPX_PLANE_U], src->stride[VPX_PLANE_U],
127                   src->planes[VPX_PLANE_V], src->stride[VPX_PLANE_V],
128                   src->d_w, src->d_h,
129                   dst->planes[VPX_PLANE_Y], dst->stride[VPX_PLANE_Y],
130                   dst->planes[VPX_PLANE_U], dst->stride[VPX_PLANE_U],
131                   dst->planes[VPX_PLANE_V], dst->stride[VPX_PLANE_V],
132                   dst->d_w, dst->d_h,
133                   mode);
134}
135
136void usage_exit() {
137  int i;
138
139  fprintf(stderr, "Usage: %s <options> filename\n\n"
140          "Options:\n", exec_name);
141  arg_show_usage(stderr, all_args);
142#if CONFIG_VP8_DECODER
143  fprintf(stderr, "\nVP8 Postprocessing Options:\n");
144  arg_show_usage(stderr, vp8_pp_args);
145#endif
146  fprintf(stderr,
147          "\nOutput File Patterns:\n\n"
148          "  The -o argument specifies the name of the file(s) to "
149          "write to. If the\n  argument does not include any escape "
150          "characters, the output will be\n  written to a single file. "
151          "Otherwise, the filename will be calculated by\n  expanding "
152          "the following escape characters:\n");
153  fprintf(stderr,
154          "\n\t%%w   - Frame width"
155          "\n\t%%h   - Frame height"
156          "\n\t%%<n> - Frame number, zero padded to <n> places (1..9)"
157          "\n\n  Pattern arguments are only supported in conjunction "
158          "with the --yv12 and\n  --i420 options. If the -o option is "
159          "not specified, the output will be\n  directed to stdout.\n"
160         );
161  fprintf(stderr, "\nIncluded decoders:\n\n");
162
163  for (i = 0; i < get_vpx_decoder_count(); ++i) {
164    const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
165    fprintf(stderr, "    %-6s - %s\n",
166            decoder->name, vpx_codec_iface_name(decoder->interface()));
167  }
168
169  exit(EXIT_FAILURE);
170}
171
172static int raw_read_frame(FILE *infile, uint8_t **buffer,
173                          size_t *bytes_read, size_t *buffer_size) {
174  char raw_hdr[RAW_FRAME_HDR_SZ];
175  size_t frame_size = 0;
176
177  if (fread(raw_hdr, RAW_FRAME_HDR_SZ, 1, infile) != 1) {
178    if (!feof(infile))
179      warn("Failed to read RAW frame size\n");
180  } else {
181    const size_t kCorruptFrameThreshold = 256 * 1024 * 1024;
182    const size_t kFrameTooSmallThreshold = 256 * 1024;
183    frame_size = mem_get_le32(raw_hdr);
184
185    if (frame_size > kCorruptFrameThreshold) {
186      warn("Read invalid frame size (%u)\n", (unsigned int)frame_size);
187      frame_size = 0;
188    }
189
190    if (frame_size < kFrameTooSmallThreshold) {
191      warn("Warning: Read invalid frame size (%u) - not a raw file?\n",
192           (unsigned int)frame_size);
193    }
194
195    if (frame_size > *buffer_size) {
196      uint8_t *new_buf = realloc(*buffer, 2 * frame_size);
197      if (new_buf) {
198        *buffer = new_buf;
199        *buffer_size = 2 * frame_size;
200      } else {
201        warn("Failed to allocate compressed data buffer\n");
202        frame_size = 0;
203      }
204    }
205  }
206
207  if (!feof(infile)) {
208    if (fread(*buffer, 1, frame_size, infile) != frame_size) {
209      warn("Failed to read full frame\n");
210      return 1;
211    }
212    *bytes_read = frame_size;
213  }
214
215  return 0;
216}
217
218static int read_frame(struct VpxDecInputContext *input, uint8_t **buf,
219                      size_t *bytes_in_buffer, size_t *buffer_size) {
220  switch (input->vpx_input_ctx->file_type) {
221#if CONFIG_WEBM_IO
222    case FILE_TYPE_WEBM:
223      return webm_read_frame(input->webm_ctx,
224                             buf, bytes_in_buffer, buffer_size);
225#endif
226    case FILE_TYPE_RAW:
227      return raw_read_frame(input->vpx_input_ctx->file,
228                            buf, bytes_in_buffer, buffer_size);
229    case FILE_TYPE_IVF:
230      return ivf_read_frame(input->vpx_input_ctx->file,
231                            buf, bytes_in_buffer, buffer_size);
232    default:
233      return 1;
234  }
235}
236
237static void update_image_md5(const vpx_image_t *img, const int planes[3],
238                             MD5Context *md5) {
239  int i, y;
240
241  for (i = 0; i < 3; ++i) {
242    const int plane = planes[i];
243    const unsigned char *buf = img->planes[plane];
244    const int stride = img->stride[plane];
245    const int w = vpx_img_plane_width(img, plane);
246    const int h = vpx_img_plane_height(img, plane);
247
248    for (y = 0; y < h; ++y) {
249      MD5Update(md5, buf, w);
250      buf += stride;
251    }
252  }
253}
254
255static void write_image_file(const vpx_image_t *img, const int planes[3],
256                             FILE *file) {
257  int i, y;
258
259  for (i = 0; i < 3; ++i) {
260    const int plane = planes[i];
261    const unsigned char *buf = img->planes[plane];
262    const int stride = img->stride[plane];
263    const int w = vpx_img_plane_width(img, plane);
264    const int h = vpx_img_plane_height(img, plane);
265
266    for (y = 0; y < h; ++y) {
267      fwrite(buf, 1, w, file);
268      buf += stride;
269    }
270  }
271}
272
273int file_is_raw(struct VpxInputContext *input) {
274  uint8_t buf[32];
275  int is_raw = 0;
276  vpx_codec_stream_info_t si;
277
278  si.sz = sizeof(si);
279
280  if (fread(buf, 1, 32, input->file) == 32) {
281    int i;
282
283    if (mem_get_le32(buf) < 256 * 1024 * 1024) {
284      for (i = 0; i < get_vpx_decoder_count(); ++i) {
285        const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
286        if (!vpx_codec_peek_stream_info(decoder->interface(),
287                                        buf + 4, 32 - 4, &si)) {
288          is_raw = 1;
289          input->fourcc = decoder->fourcc;
290          input->width = si.w;
291          input->height = si.h;
292          input->framerate.numerator = 30;
293          input->framerate.denominator = 1;
294          break;
295        }
296      }
297    }
298  }
299
300  rewind(input->file);
301  return is_raw;
302}
303
304void show_progress(int frame_in, int frame_out, uint64_t dx_time) {
305  fprintf(stderr,
306          "%d decoded frames/%d showed frames in %"PRId64" us (%.2f fps)\r",
307          frame_in, frame_out, dx_time,
308          (double)frame_out * 1000000.0 / (double)dx_time);
309}
310
311struct ExternalFrameBuffer {
312  uint8_t* data;
313  size_t size;
314  int in_use;
315};
316
317struct ExternalFrameBufferList {
318  int num_external_frame_buffers;
319  struct ExternalFrameBuffer *ext_fb;
320};
321
322// Callback used by libvpx to request an external frame buffer. |cb_priv|
323// Application private data passed into the set function. |min_size| is the
324// minimum size in bytes needed to decode the next frame. |fb| pointer to the
325// frame buffer.
326int get_vp9_frame_buffer(void *cb_priv, size_t min_size,
327                         vpx_codec_frame_buffer_t *fb) {
328  int i;
329  struct ExternalFrameBufferList *const ext_fb_list =
330      (struct ExternalFrameBufferList *)cb_priv;
331  if (ext_fb_list == NULL)
332    return -1;
333
334  // Find a free frame buffer.
335  for (i = 0; i < ext_fb_list->num_external_frame_buffers; ++i) {
336    if (!ext_fb_list->ext_fb[i].in_use)
337      break;
338  }
339
340  if (i == ext_fb_list->num_external_frame_buffers)
341    return -1;
342
343  if (ext_fb_list->ext_fb[i].size < min_size) {
344    free(ext_fb_list->ext_fb[i].data);
345    ext_fb_list->ext_fb[i].data = (uint8_t *)malloc(min_size);
346    if (!ext_fb_list->ext_fb[i].data)
347      return -1;
348
349    ext_fb_list->ext_fb[i].size = min_size;
350  }
351
352  fb->data = ext_fb_list->ext_fb[i].data;
353  fb->size = ext_fb_list->ext_fb[i].size;
354  ext_fb_list->ext_fb[i].in_use = 1;
355
356  // Set the frame buffer's private data to point at the external frame buffer.
357  fb->priv = &ext_fb_list->ext_fb[i];
358  return 0;
359}
360
361// Callback used by libvpx when there are no references to the frame buffer.
362// |cb_priv| user private data passed into the set function. |fb| pointer
363// to the frame buffer.
364int release_vp9_frame_buffer(void *cb_priv,
365                             vpx_codec_frame_buffer_t *fb) {
366  struct ExternalFrameBuffer *const ext_fb =
367      (struct ExternalFrameBuffer *)fb->priv;
368  (void)cb_priv;
369  ext_fb->in_use = 0;
370  return 0;
371}
372
373void generate_filename(const char *pattern, char *out, size_t q_len,
374                       unsigned int d_w, unsigned int d_h,
375                       unsigned int frame_in) {
376  const char *p = pattern;
377  char *q = out;
378
379  do {
380    char *next_pat = strchr(p, '%');
381
382    if (p == next_pat) {
383      size_t pat_len;
384
385      /* parse the pattern */
386      q[q_len - 1] = '\0';
387      switch (p[1]) {
388        case 'w':
389          snprintf(q, q_len - 1, "%d", d_w);
390          break;
391        case 'h':
392          snprintf(q, q_len - 1, "%d", d_h);
393          break;
394        case '1':
395          snprintf(q, q_len - 1, "%d", frame_in);
396          break;
397        case '2':
398          snprintf(q, q_len - 1, "%02d", frame_in);
399          break;
400        case '3':
401          snprintf(q, q_len - 1, "%03d", frame_in);
402          break;
403        case '4':
404          snprintf(q, q_len - 1, "%04d", frame_in);
405          break;
406        case '5':
407          snprintf(q, q_len - 1, "%05d", frame_in);
408          break;
409        case '6':
410          snprintf(q, q_len - 1, "%06d", frame_in);
411          break;
412        case '7':
413          snprintf(q, q_len - 1, "%07d", frame_in);
414          break;
415        case '8':
416          snprintf(q, q_len - 1, "%08d", frame_in);
417          break;
418        case '9':
419          snprintf(q, q_len - 1, "%09d", frame_in);
420          break;
421        default:
422          die("Unrecognized pattern %%%c\n", p[1]);
423      }
424
425      pat_len = strlen(q);
426      if (pat_len >= q_len - 1)
427        die("Output filename too long.\n");
428      q += pat_len;
429      p += 2;
430      q_len -= pat_len;
431    } else {
432      size_t copy_len;
433
434      /* copy the next segment */
435      if (!next_pat)
436        copy_len = strlen(p);
437      else
438        copy_len = next_pat - p;
439
440      if (copy_len >= q_len - 1)
441        die("Output filename too long.\n");
442
443      memcpy(q, p, copy_len);
444      q[copy_len] = '\0';
445      q += copy_len;
446      p += copy_len;
447      q_len -= copy_len;
448    }
449  } while (*p);
450}
451
452static int is_single_file(const char *outfile_pattern) {
453  const char *p = outfile_pattern;
454
455  do {
456    p = strchr(p, '%');
457    if (p && p[1] >= '1' && p[1] <= '9')
458      return 0;  // pattern contains sequence number, so it's not unique
459    if (p)
460      p++;
461  } while (p);
462
463  return 1;
464}
465
466static void print_md5(unsigned char digest[16], const char *filename) {
467  int i;
468
469  for (i = 0; i < 16; ++i)
470    printf("%02x", digest[i]);
471  printf("  %s\n", filename);
472}
473
474static FILE *open_outfile(const char *name) {
475  if (strcmp("-", name) == 0) {
476    set_binary_mode(stdout);
477    return stdout;
478  } else {
479    FILE *file = fopen(name, "wb");
480    if (!file)
481      fatal("Failed to output file %s", name);
482    return file;
483  }
484}
485
486int main_loop(int argc, const char **argv_) {
487  vpx_codec_ctx_t       decoder;
488  char                  *fn = NULL;
489  int                    i;
490  uint8_t               *buf = NULL;
491  size_t                 bytes_in_buffer = 0, buffer_size = 0;
492  FILE                  *infile;
493  int                    frame_in = 0, frame_out = 0, flipuv = 0, noblit = 0;
494  int                    do_md5 = 0, progress = 0;
495  int                    stop_after = 0, postproc = 0, summary = 0, quiet = 1;
496  int                    arg_skip = 0;
497  int                    ec_enabled = 0;
498  const VpxInterface *interface = NULL;
499  const VpxInterface *fourcc_interface = NULL;
500  uint64_t dx_time = 0;
501  struct arg               arg;
502  char                   **argv, **argi, **argj;
503
504  int                     single_file;
505  int                     use_y4m = 1;
506  vpx_codec_dec_cfg_t     cfg = {0};
507#if CONFIG_VP8_DECODER
508  vp8_postproc_cfg_t      vp8_pp_cfg = {0};
509  int                     vp8_dbg_color_ref_frame = 0;
510  int                     vp8_dbg_color_mb_modes = 0;
511  int                     vp8_dbg_color_b_modes = 0;
512  int                     vp8_dbg_display_mv = 0;
513#endif
514  int                     frames_corrupted = 0;
515  int                     dec_flags = 0;
516  int                     do_scale = 0;
517  vpx_image_t             *scaled_img = NULL;
518  int                     frame_avail, got_data;
519  int                     num_external_frame_buffers = 0;
520  struct ExternalFrameBufferList ext_fb_list = {0};
521
522  const char *outfile_pattern = NULL;
523  char outfile_name[PATH_MAX] = {0};
524  FILE *outfile = NULL;
525
526  MD5Context md5_ctx;
527  unsigned char md5_digest[16];
528
529  struct VpxDecInputContext input = {0};
530  struct VpxInputContext vpx_input_ctx = {0};
531  struct WebmInputContext webm_ctx = {0};
532  input.vpx_input_ctx = &vpx_input_ctx;
533  input.webm_ctx = &webm_ctx;
534
535  /* Parse command line */
536  exec_name = argv_[0];
537  argv = argv_dup(argc - 1, argv_ + 1);
538
539  for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
540    memset(&arg, 0, sizeof(arg));
541    arg.argv_step = 1;
542
543    if (arg_match(&arg, &codecarg, argi)) {
544      interface = get_vpx_decoder_by_name(arg.val);
545      if (!interface)
546        die("Error: Unrecognized argument (%s) to --codec\n", arg.val);
547    } else if (arg_match(&arg, &looparg, argi)) {
548      // no-op
549    } else if (arg_match(&arg, &outputfile, argi))
550      outfile_pattern = arg.val;
551    else if (arg_match(&arg, &use_yv12, argi)) {
552      use_y4m = 0;
553      flipuv = 1;
554    } else if (arg_match(&arg, &use_i420, argi)) {
555      use_y4m = 0;
556      flipuv = 0;
557    } else if (arg_match(&arg, &flipuvarg, argi))
558      flipuv = 1;
559    else if (arg_match(&arg, &noblitarg, argi))
560      noblit = 1;
561    else if (arg_match(&arg, &progressarg, argi))
562      progress = 1;
563    else if (arg_match(&arg, &limitarg, argi))
564      stop_after = arg_parse_uint(&arg);
565    else if (arg_match(&arg, &skiparg, argi))
566      arg_skip = arg_parse_uint(&arg);
567    else if (arg_match(&arg, &postprocarg, argi))
568      postproc = 1;
569    else if (arg_match(&arg, &md5arg, argi))
570      do_md5 = 1;
571    else if (arg_match(&arg, &summaryarg, argi))
572      summary = 1;
573    else if (arg_match(&arg, &threadsarg, argi))
574      cfg.threads = arg_parse_uint(&arg);
575    else if (arg_match(&arg, &verbosearg, argi))
576      quiet = 0;
577    else if (arg_match(&arg, &scalearg, argi))
578      do_scale = 1;
579    else if (arg_match(&arg, &fb_arg, argi))
580      num_external_frame_buffers = arg_parse_uint(&arg);
581
582#if CONFIG_VP8_DECODER
583    else if (arg_match(&arg, &addnoise_level, argi)) {
584      postproc = 1;
585      vp8_pp_cfg.post_proc_flag |= VP8_ADDNOISE;
586      vp8_pp_cfg.noise_level = arg_parse_uint(&arg);
587    } else if (arg_match(&arg, &demacroblock_level, argi)) {
588      postproc = 1;
589      vp8_pp_cfg.post_proc_flag |= VP8_DEMACROBLOCK;
590      vp8_pp_cfg.deblocking_level = arg_parse_uint(&arg);
591    } else if (arg_match(&arg, &deblock, argi)) {
592      postproc = 1;
593      vp8_pp_cfg.post_proc_flag |= VP8_DEBLOCK;
594    } else if (arg_match(&arg, &mfqe, argi)) {
595      postproc = 1;
596      vp8_pp_cfg.post_proc_flag |= VP8_MFQE;
597    } else if (arg_match(&arg, &pp_debug_info, argi)) {
598      unsigned int level = arg_parse_uint(&arg);
599
600      postproc = 1;
601      vp8_pp_cfg.post_proc_flag &= ~0x7;
602
603      if (level)
604        vp8_pp_cfg.post_proc_flag |= level;
605    } else if (arg_match(&arg, &pp_disp_ref_frame, argi)) {
606      unsigned int flags = arg_parse_int(&arg);
607      if (flags) {
608        postproc = 1;
609        vp8_dbg_color_ref_frame = flags;
610      }
611    } else if (arg_match(&arg, &pp_disp_mb_modes, argi)) {
612      unsigned int flags = arg_parse_int(&arg);
613      if (flags) {
614        postproc = 1;
615        vp8_dbg_color_mb_modes = flags;
616      }
617    } else if (arg_match(&arg, &pp_disp_b_modes, argi)) {
618      unsigned int flags = arg_parse_int(&arg);
619      if (flags) {
620        postproc = 1;
621        vp8_dbg_color_b_modes = flags;
622      }
623    } else if (arg_match(&arg, &pp_disp_mvs, argi)) {
624      unsigned int flags = arg_parse_int(&arg);
625      if (flags) {
626        postproc = 1;
627        vp8_dbg_display_mv = flags;
628      }
629    } else if (arg_match(&arg, &error_concealment, argi)) {
630      ec_enabled = 1;
631    }
632
633#endif
634    else
635      argj++;
636  }
637
638  /* Check for unrecognized options */
639  for (argi = argv; *argi; argi++)
640    if (argi[0][0] == '-' && strlen(argi[0]) > 1)
641      die("Error: Unrecognized option %s\n", *argi);
642
643  /* Handle non-option arguments */
644  fn = argv[0];
645
646  if (!fn)
647    usage_exit();
648
649  /* Open file */
650  infile = strcmp(fn, "-") ? fopen(fn, "rb") : set_binary_mode(stdin);
651
652  if (!infile) {
653    fprintf(stderr, "Failed to open file '%s'", strcmp(fn, "-") ? fn : "stdin");
654    return EXIT_FAILURE;
655  }
656#if CONFIG_OS_SUPPORT
657  /* Make sure we don't dump to the terminal, unless forced to with -o - */
658  if (!outfile_pattern && isatty(fileno(stdout)) && !do_md5 && !noblit) {
659    fprintf(stderr,
660            "Not dumping raw video to your terminal. Use '-o -' to "
661            "override.\n");
662    return EXIT_FAILURE;
663  }
664#endif
665  input.vpx_input_ctx->file = infile;
666  if (file_is_ivf(input.vpx_input_ctx))
667    input.vpx_input_ctx->file_type = FILE_TYPE_IVF;
668#if CONFIG_WEBM_IO
669  else if (file_is_webm(input.webm_ctx, input.vpx_input_ctx))
670    input.vpx_input_ctx->file_type = FILE_TYPE_WEBM;
671#endif
672  else if (file_is_raw(input.vpx_input_ctx))
673    input.vpx_input_ctx->file_type = FILE_TYPE_RAW;
674  else {
675    fprintf(stderr, "Unrecognized input file type.\n");
676#if !CONFIG_WEBM_IO
677    fprintf(stderr, "vpxdec was built without WebM container support.\n");
678#endif
679    return EXIT_FAILURE;
680  }
681
682  outfile_pattern = outfile_pattern ? outfile_pattern : "-";
683  single_file = is_single_file(outfile_pattern);
684
685  if (!noblit && single_file) {
686    generate_filename(outfile_pattern, outfile_name, PATH_MAX,
687                      vpx_input_ctx.width, vpx_input_ctx.height, 0);
688    if (do_md5)
689      MD5Init(&md5_ctx);
690    else
691      outfile = open_outfile(outfile_name);
692  }
693
694  if (use_y4m && !noblit) {
695    if (!single_file) {
696      fprintf(stderr, "YUV4MPEG2 not supported with output patterns,"
697              " try --i420 or --yv12.\n");
698      return EXIT_FAILURE;
699    }
700
701#if CONFIG_WEBM_IO
702    if (vpx_input_ctx.file_type == FILE_TYPE_WEBM) {
703      if (webm_guess_framerate(input.webm_ctx, input.vpx_input_ctx)) {
704        fprintf(stderr, "Failed to guess framerate -- error parsing "
705                "webm file?\n");
706        return EXIT_FAILURE;
707      }
708    }
709#endif
710  }
711
712  fourcc_interface = get_vpx_decoder_by_fourcc(vpx_input_ctx.fourcc);
713  if (interface && fourcc_interface && interface != fourcc_interface)
714    warn("Header indicates codec: %s\n", fourcc_interface->name);
715  else
716    interface = fourcc_interface;
717
718  if (!interface)
719    interface = get_vpx_decoder_by_index(0);
720
721  dec_flags = (postproc ? VPX_CODEC_USE_POSTPROC : 0) |
722              (ec_enabled ? VPX_CODEC_USE_ERROR_CONCEALMENT : 0);
723  if (vpx_codec_dec_init(&decoder, interface->interface(), &cfg, dec_flags)) {
724    fprintf(stderr, "Failed to initialize decoder: %s\n",
725            vpx_codec_error(&decoder));
726    return EXIT_FAILURE;
727  }
728
729  if (!quiet)
730    fprintf(stderr, "%s\n", decoder.name);
731
732#if CONFIG_VP8_DECODER
733
734  if (vp8_pp_cfg.post_proc_flag
735      && vpx_codec_control(&decoder, VP8_SET_POSTPROC, &vp8_pp_cfg)) {
736    fprintf(stderr, "Failed to configure postproc: %s\n", vpx_codec_error(&decoder));
737    return EXIT_FAILURE;
738  }
739
740  if (vp8_dbg_color_ref_frame
741      && vpx_codec_control(&decoder, VP8_SET_DBG_COLOR_REF_FRAME, vp8_dbg_color_ref_frame)) {
742    fprintf(stderr, "Failed to configure reference block visualizer: %s\n", vpx_codec_error(&decoder));
743    return EXIT_FAILURE;
744  }
745
746  if (vp8_dbg_color_mb_modes
747      && vpx_codec_control(&decoder, VP8_SET_DBG_COLOR_MB_MODES, vp8_dbg_color_mb_modes)) {
748    fprintf(stderr, "Failed to configure macro block visualizer: %s\n", vpx_codec_error(&decoder));
749    return EXIT_FAILURE;
750  }
751
752  if (vp8_dbg_color_b_modes
753      && vpx_codec_control(&decoder, VP8_SET_DBG_COLOR_B_MODES, vp8_dbg_color_b_modes)) {
754    fprintf(stderr, "Failed to configure block visualizer: %s\n", vpx_codec_error(&decoder));
755    return EXIT_FAILURE;
756  }
757
758  if (vp8_dbg_display_mv
759      && vpx_codec_control(&decoder, VP8_SET_DBG_DISPLAY_MV, vp8_dbg_display_mv)) {
760    fprintf(stderr, "Failed to configure motion vector visualizer: %s\n", vpx_codec_error(&decoder));
761    return EXIT_FAILURE;
762  }
763#endif
764
765
766  if (arg_skip)
767    fprintf(stderr, "Skipping first %d frames.\n", arg_skip);
768  while (arg_skip) {
769    if (read_frame(&input, &buf, &bytes_in_buffer, &buffer_size))
770      break;
771    arg_skip--;
772  }
773
774  if (num_external_frame_buffers > 0) {
775    ext_fb_list.num_external_frame_buffers = num_external_frame_buffers;
776    ext_fb_list.ext_fb = (struct ExternalFrameBuffer *)calloc(
777        num_external_frame_buffers, sizeof(*ext_fb_list.ext_fb));
778    if (vpx_codec_set_frame_buffer_functions(
779            &decoder, get_vp9_frame_buffer, release_vp9_frame_buffer,
780            &ext_fb_list)) {
781      fprintf(stderr, "Failed to configure external frame buffers: %s\n",
782              vpx_codec_error(&decoder));
783      return EXIT_FAILURE;
784    }
785  }
786
787  frame_avail = 1;
788  got_data = 0;
789
790  /* Decode file */
791  while (frame_avail || got_data) {
792    vpx_codec_iter_t  iter = NULL;
793    vpx_image_t    *img;
794    struct vpx_usec_timer timer;
795    int                   corrupted;
796
797    frame_avail = 0;
798    if (!stop_after || frame_in < stop_after) {
799      if (!read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) {
800        frame_avail = 1;
801        frame_in++;
802
803        vpx_usec_timer_start(&timer);
804
805        if (vpx_codec_decode(&decoder, buf, (unsigned int)bytes_in_buffer,
806                             NULL, 0)) {
807          const char *detail = vpx_codec_error_detail(&decoder);
808          warn("Failed to decode frame %d: %s",
809               frame_in, vpx_codec_error(&decoder));
810
811          if (detail)
812            warn("Additional information: %s", detail);
813          goto fail;
814        }
815
816        vpx_usec_timer_mark(&timer);
817        dx_time += vpx_usec_timer_elapsed(&timer);
818      }
819    }
820
821    vpx_usec_timer_start(&timer);
822
823    got_data = 0;
824    if ((img = vpx_codec_get_frame(&decoder, &iter))) {
825      ++frame_out;
826      got_data = 1;
827    }
828
829    vpx_usec_timer_mark(&timer);
830    dx_time += (unsigned int)vpx_usec_timer_elapsed(&timer);
831
832    if (vpx_codec_control(&decoder, VP8D_GET_FRAME_CORRUPTED, &corrupted)) {
833      warn("Failed VP8_GET_FRAME_CORRUPTED: %s", vpx_codec_error(&decoder));
834      goto fail;
835    }
836    frames_corrupted += corrupted;
837
838    if (progress)
839      show_progress(frame_in, frame_out, dx_time);
840
841    if (!noblit && img) {
842      const int PLANES_YUV[] = {VPX_PLANE_Y, VPX_PLANE_U, VPX_PLANE_V};
843      const int PLANES_YVU[] = {VPX_PLANE_Y, VPX_PLANE_V, VPX_PLANE_U};
844      const int *planes = flipuv ? PLANES_YVU : PLANES_YUV;
845
846      if (do_scale) {
847        if (frame_out == 1) {
848          // If the output frames are to be scaled to a fixed display size then
849          // use the width and height specified in the container. If either of
850          // these is set to 0, use the display size set in the first frame
851          // header. If that is unavailable, use the raw decoded size of the
852          // first decoded frame.
853          int display_width = vpx_input_ctx.width;
854          int display_height = vpx_input_ctx.height;
855          if (!display_width || !display_height) {
856            int display_size[2];
857            if (vpx_codec_control(&decoder, VP9D_GET_DISPLAY_SIZE,
858                                  display_size)) {
859              // As last resort use size of first frame as display size.
860              display_width = img->d_w;
861              display_height = img->d_h;
862            } else {
863              display_width = display_size[0];
864              display_height = display_size[1];
865            }
866          }
867          scaled_img = vpx_img_alloc(NULL, VPX_IMG_FMT_I420, display_width,
868                                     display_height, 16);
869        }
870
871        if (img->d_w != scaled_img->d_w || img->d_h != scaled_img->d_h) {
872          vpx_image_scale(img, scaled_img, kFilterBox);
873          img = scaled_img;
874        }
875      }
876
877      if (single_file) {
878        if (use_y4m) {
879          char buf[Y4M_BUFFER_SIZE] = {0};
880          size_t len = 0;
881          if (frame_out == 1) {
882            // Y4M file header
883            len = y4m_write_file_header(buf, sizeof(buf),
884                                        vpx_input_ctx.width,
885                                        vpx_input_ctx.height,
886                                        &vpx_input_ctx.framerate, img->fmt);
887            if (do_md5) {
888              MD5Update(&md5_ctx, (md5byte *)buf, (unsigned int)len);
889            } else {
890              fputs(buf, outfile);
891            }
892          }
893
894          // Y4M frame header
895          len = y4m_write_frame_header(buf, sizeof(buf));
896          if (do_md5) {
897            MD5Update(&md5_ctx, (md5byte *)buf, (unsigned int)len);
898          } else {
899            fputs(buf, outfile);
900          }
901        }
902
903        if (do_md5) {
904          update_image_md5(img, planes, &md5_ctx);
905        } else {
906          write_image_file(img, planes, outfile);
907        }
908      } else {
909        generate_filename(outfile_pattern, outfile_name, PATH_MAX,
910                          img->d_w, img->d_h, frame_in);
911        if (do_md5) {
912          MD5Init(&md5_ctx);
913          update_image_md5(img, planes, &md5_ctx);
914          MD5Final(md5_digest, &md5_ctx);
915          print_md5(md5_digest, outfile_name);
916        } else {
917          outfile = open_outfile(outfile_name);
918          write_image_file(img, planes, outfile);
919          fclose(outfile);
920        }
921      }
922    }
923
924    if (stop_after && frame_in >= stop_after)
925      break;
926  }
927
928  if (summary || progress) {
929    show_progress(frame_in, frame_out, dx_time);
930    fprintf(stderr, "\n");
931  }
932
933  if (frames_corrupted)
934    fprintf(stderr, "WARNING: %d frames corrupted.\n", frames_corrupted);
935
936fail:
937
938  if (vpx_codec_destroy(&decoder)) {
939    fprintf(stderr, "Failed to destroy decoder: %s\n",
940            vpx_codec_error(&decoder));
941    return EXIT_FAILURE;
942  }
943
944  if (!noblit && single_file) {
945    if (do_md5) {
946      MD5Final(md5_digest, &md5_ctx);
947      print_md5(md5_digest, outfile_name);
948    } else {
949      fclose(outfile);
950    }
951  }
952
953#if CONFIG_WEBM_IO
954  if (input.vpx_input_ctx->file_type == FILE_TYPE_WEBM)
955    webm_free(input.webm_ctx);
956#endif
957
958  if (input.vpx_input_ctx->file_type != FILE_TYPE_WEBM)
959    free(buf);
960
961  if (scaled_img) vpx_img_free(scaled_img);
962
963  for (i = 0; i < ext_fb_list.num_external_frame_buffers; ++i) {
964    free(ext_fb_list.ext_fb[i].data);
965  }
966  free(ext_fb_list.ext_fb);
967
968  fclose(infile);
969  free(argv);
970
971  return frames_corrupted ? EXIT_FAILURE : EXIT_SUCCESS;
972}
973
974int main(int argc, const char **argv_) {
975  unsigned int loops = 1, i;
976  char **argv, **argi, **argj;
977  struct arg arg;
978  int error = 0;
979
980  argv = argv_dup(argc - 1, argv_ + 1);
981  for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
982    memset(&arg, 0, sizeof(arg));
983    arg.argv_step = 1;
984
985    if (arg_match(&arg, &looparg, argi)) {
986      loops = arg_parse_uint(&arg);
987      break;
988    }
989  }
990  free(argv);
991  for (i = 0; !error && i < loops; i++)
992    error = main_loop(argc, argv_);
993  return error;
994}
995