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
12/* This is a simple program that reads ivf files and decodes them
13 * using the new interface. Decoded frames are output as YV12 raw.
14 */
15#include <assert.h>
16#include <stdio.h>
17#include <stdlib.h>
18#include <stdarg.h>
19#include <string.h>
20#include <limits.h>
21
22#define VPX_CODEC_DISABLE_COMPAT 1
23#include "vpx_config.h"
24#include "vpx/vpx_decoder.h"
25#include "vpx_ports/vpx_timer.h"
26#if CONFIG_VP8_DECODER || CONFIG_VP9_DECODER
27#include "vpx/vp8dx.h"
28#endif
29#if CONFIG_MD5
30#include "md5_utils.h"
31#endif
32#include "tools_common.h"
33#include "nestegg/include/nestegg/nestegg.h"
34#include "third_party/libyuv/include/libyuv/scale.h"
35
36static const char *exec_name;
37
38static const struct {
39  char const *name;
40  const vpx_codec_iface_t *(*iface)(void);
41  unsigned int             fourcc;
42  unsigned int             fourcc_mask;
43} ifaces[] = {
44#if CONFIG_VP8_DECODER
45  {"vp8",  vpx_codec_vp8_dx,   VP8_FOURCC_MASK, 0x00FFFFFF},
46#endif
47#if CONFIG_VP9_DECODER
48  {"vp9",  vpx_codec_vp9_dx,   VP9_FOURCC_MASK, 0x00FFFFFF},
49#endif
50};
51
52#include "args.h"
53static const arg_def_t looparg = ARG_DEF(NULL, "loops", 1,
54                                          "Number of times to decode the file");
55static const arg_def_t codecarg = ARG_DEF(NULL, "codec", 1,
56                                          "Codec to use");
57static const arg_def_t use_yv12 = ARG_DEF(NULL, "yv12", 0,
58                                          "Output raw YV12 frames");
59static const arg_def_t use_i420 = ARG_DEF(NULL, "i420", 0,
60                                          "Output raw I420 frames");
61static const arg_def_t flipuvarg = ARG_DEF(NULL, "flipuv", 0,
62                                           "Flip the chroma planes in the output");
63static const arg_def_t noblitarg = ARG_DEF(NULL, "noblit", 0,
64                                           "Don't process the decoded frames");
65static const arg_def_t progressarg = ARG_DEF(NULL, "progress", 0,
66                                             "Show progress after each frame decodes");
67static const arg_def_t limitarg = ARG_DEF(NULL, "limit", 1,
68                                          "Stop decoding after n frames");
69static const arg_def_t skiparg = ARG_DEF(NULL, "skip", 1,
70                                         "Skip the first n input frames");
71static const arg_def_t postprocarg = ARG_DEF(NULL, "postproc", 0,
72                                             "Postprocess decoded frames");
73static const arg_def_t summaryarg = ARG_DEF(NULL, "summary", 0,
74                                            "Show timing summary");
75static const arg_def_t outputfile = ARG_DEF("o", "output", 1,
76                                            "Output file name pattern (see below)");
77static const arg_def_t threadsarg = ARG_DEF("t", "threads", 1,
78                                            "Max threads to use");
79static const arg_def_t verbosearg = ARG_DEF("v", "verbose", 0,
80                                            "Show version string");
81static const arg_def_t error_concealment = ARG_DEF(NULL, "error-concealment", 0,
82                                                   "Enable decoder error-concealment");
83static const arg_def_t scalearg = ARG_DEF("S", "scale", 0,
84                                            "Scale output frames uniformly");
85
86
87#if CONFIG_MD5
88static const arg_def_t md5arg = ARG_DEF(NULL, "md5", 0,
89                                        "Compute the MD5 sum of the decoded frame");
90#endif
91static const arg_def_t *all_args[] = {
92  &codecarg, &use_yv12, &use_i420, &flipuvarg, &noblitarg,
93  &progressarg, &limitarg, &skiparg, &postprocarg, &summaryarg, &outputfile,
94  &threadsarg, &verbosearg, &scalearg,
95#if CONFIG_MD5
96  &md5arg,
97#endif
98  &error_concealment,
99  NULL
100};
101
102#if CONFIG_VP8_DECODER
103static const arg_def_t addnoise_level = ARG_DEF(NULL, "noise-level", 1,
104                                                "Enable VP8 postproc add noise");
105static const arg_def_t deblock = ARG_DEF(NULL, "deblock", 0,
106                                         "Enable VP8 deblocking");
107static const arg_def_t demacroblock_level = ARG_DEF(NULL, "demacroblock-level", 1,
108                                                    "Enable VP8 demacroblocking, w/ level");
109static const arg_def_t pp_debug_info = ARG_DEF(NULL, "pp-debug-info", 1,
110                                               "Enable VP8 visible debug info");
111static const arg_def_t pp_disp_ref_frame = ARG_DEF(NULL, "pp-dbg-ref-frame", 1,
112                                                   "Display only selected reference frame per macro block");
113static const arg_def_t pp_disp_mb_modes = ARG_DEF(NULL, "pp-dbg-mb-modes", 1,
114                                                  "Display only selected macro block modes");
115static const arg_def_t pp_disp_b_modes = ARG_DEF(NULL, "pp-dbg-b-modes", 1,
116                                                 "Display only selected block modes");
117static const arg_def_t pp_disp_mvs = ARG_DEF(NULL, "pp-dbg-mvs", 1,
118                                             "Draw only selected motion vectors");
119static const arg_def_t mfqe = ARG_DEF(NULL, "mfqe", 0,
120                                      "Enable multiframe quality enhancement");
121
122static const arg_def_t *vp8_pp_args[] = {
123  &addnoise_level, &deblock, &demacroblock_level, &pp_debug_info,
124  &pp_disp_ref_frame, &pp_disp_mb_modes, &pp_disp_b_modes, &pp_disp_mvs, &mfqe,
125  NULL
126};
127#endif
128
129void usage_exit() {
130  int i;
131
132  fprintf(stderr, "Usage: %s <options> filename\n\n"
133          "Options:\n", exec_name);
134  arg_show_usage(stderr, all_args);
135#if CONFIG_VP8_DECODER
136  fprintf(stderr, "\nVP8 Postprocessing Options:\n");
137  arg_show_usage(stderr, vp8_pp_args);
138#endif
139  fprintf(stderr,
140          "\nOutput File Patterns:\n\n"
141          "  The -o argument specifies the name of the file(s) to "
142          "write to. If the\n  argument does not include any escape "
143          "characters, the output will be\n  written to a single file. "
144          "Otherwise, the filename will be calculated by\n  expanding "
145          "the following escape characters:\n");
146  fprintf(stderr,
147          "\n\t%%w   - Frame width"
148          "\n\t%%h   - Frame height"
149          "\n\t%%<n> - Frame number, zero padded to <n> places (1..9)"
150          "\n\n  Pattern arguments are only supported in conjunction "
151          "with the --yv12 and\n  --i420 options. If the -o option is "
152          "not specified, the output will be\n  directed to stdout.\n"
153         );
154  fprintf(stderr, "\nIncluded decoders:\n\n");
155
156  for (i = 0; i < sizeof(ifaces) / sizeof(ifaces[0]); i++)
157    fprintf(stderr, "    %-6s - %s\n",
158            ifaces[i].name,
159            vpx_codec_iface_name(ifaces[i].iface()));
160
161  exit(EXIT_FAILURE);
162}
163
164static unsigned int mem_get_le16(const void *vmem) {
165  unsigned int  val;
166  const unsigned char *mem = (const unsigned char *)vmem;
167
168  val = mem[1] << 8;
169  val |= mem[0];
170  return val;
171}
172
173static unsigned int mem_get_le32(const void *vmem) {
174  unsigned int  val;
175  const unsigned char *mem = (const unsigned char *)vmem;
176
177  val = mem[3] << 24;
178  val |= mem[2] << 16;
179  val |= mem[1] << 8;
180  val |= mem[0];
181  return val;
182}
183
184enum file_kind {
185  RAW_FILE,
186  IVF_FILE,
187  WEBM_FILE
188};
189
190struct input_ctx {
191  enum file_kind  kind;
192  FILE           *infile;
193  nestegg        *nestegg_ctx;
194  nestegg_packet *pkt;
195  unsigned int    chunk;
196  unsigned int    chunks;
197  unsigned int    video_track;
198};
199
200#define IVF_FRAME_HDR_SZ (sizeof(uint32_t) + sizeof(uint64_t))
201#define RAW_FRAME_HDR_SZ (sizeof(uint32_t))
202static int read_frame(struct input_ctx      *input,
203                      uint8_t               **buf,
204                      size_t                *buf_sz,
205                      size_t                *buf_alloc_sz) {
206  char            raw_hdr[IVF_FRAME_HDR_SZ];
207  size_t          new_buf_sz;
208  FILE           *infile = input->infile;
209  enum file_kind  kind = input->kind;
210  if (kind == WEBM_FILE) {
211    if (input->chunk >= input->chunks) {
212      unsigned int track;
213
214      do {
215        /* End of this packet, get another. */
216        if (input->pkt)
217          nestegg_free_packet(input->pkt);
218
219        if (nestegg_read_packet(input->nestegg_ctx, &input->pkt) <= 0
220            || nestegg_packet_track(input->pkt, &track))
221          return 1;
222
223      } while (track != input->video_track);
224
225      if (nestegg_packet_count(input->pkt, &input->chunks))
226        return 1;
227      input->chunk = 0;
228    }
229
230    if (nestegg_packet_data(input->pkt, input->chunk, buf, buf_sz))
231      return 1;
232    input->chunk++;
233
234    return 0;
235  }
236  /* For both the raw and ivf formats, the frame size is the first 4 bytes
237   * of the frame header. We just need to special case on the header
238   * size.
239   */
240  else if (fread(raw_hdr, kind == IVF_FILE
241                 ? IVF_FRAME_HDR_SZ : RAW_FRAME_HDR_SZ, 1, infile) != 1) {
242    if (!feof(infile))
243      fprintf(stderr, "Failed to read frame size\n");
244
245    new_buf_sz = 0;
246  } else {
247    new_buf_sz = mem_get_le32(raw_hdr);
248
249    if (new_buf_sz > 256 * 1024 * 1024) {
250      fprintf(stderr, "Error: Read invalid frame size (%u)\n",
251              (unsigned int)new_buf_sz);
252      new_buf_sz = 0;
253    }
254
255    if (kind == RAW_FILE && new_buf_sz > 256 * 1024)
256      fprintf(stderr, "Warning: Read invalid frame size (%u)"
257              " - not a raw file?\n", (unsigned int)new_buf_sz);
258
259    if (new_buf_sz > *buf_alloc_sz) {
260      uint8_t *new_buf = realloc(*buf, 2 * new_buf_sz);
261
262      if (new_buf) {
263        *buf = new_buf;
264        *buf_alloc_sz = 2 * new_buf_sz;
265      } else {
266        fprintf(stderr, "Failed to allocate compressed data buffer\n");
267        new_buf_sz = 0;
268      }
269    }
270  }
271
272  *buf_sz = new_buf_sz;
273
274  if (!feof(infile)) {
275    if (fread(*buf, 1, *buf_sz, infile) != *buf_sz) {
276      fprintf(stderr, "Failed to read full frame\n");
277      return 1;
278    }
279
280    return 0;
281  }
282
283  return 1;
284}
285
286void *out_open(const char *out_fn, int do_md5) {
287  void *out = NULL;
288
289  if (do_md5) {
290#if CONFIG_MD5
291    MD5Context *md5_ctx = out = malloc(sizeof(MD5Context));
292    (void)out_fn;
293    MD5Init(md5_ctx);
294#endif
295  } else {
296    FILE *outfile = out = strcmp("-", out_fn) ? fopen(out_fn, "wb")
297                          : set_binary_mode(stdout);
298
299    if (!outfile) {
300      fprintf(stderr, "Failed to output file");
301      exit(EXIT_FAILURE);
302    }
303  }
304
305  return out;
306}
307
308void out_put(void *out, const uint8_t *buf, unsigned int len, int do_md5) {
309  if (do_md5) {
310#if CONFIG_MD5
311    MD5Update(out, buf, len);
312#endif
313  } else {
314    (void) fwrite(buf, 1, len, out);
315  }
316}
317
318void out_close(void *out, const char *out_fn, int do_md5) {
319  if (do_md5) {
320#if CONFIG_MD5
321    uint8_t md5[16];
322    int i;
323
324    MD5Final(md5, out);
325    free(out);
326
327    for (i = 0; i < 16; i++)
328      printf("%02x", md5[i]);
329
330    printf("  %s\n", out_fn);
331#endif
332  } else {
333    fclose(out);
334  }
335}
336
337unsigned int file_is_ivf(FILE *infile,
338                         unsigned int *fourcc,
339                         unsigned int *width,
340                         unsigned int *height,
341                         unsigned int *fps_den,
342                         unsigned int *fps_num) {
343  char raw_hdr[32];
344  int is_ivf = 0;
345
346  if (fread(raw_hdr, 1, 32, infile) == 32) {
347    if (raw_hdr[0] == 'D' && raw_hdr[1] == 'K'
348        && raw_hdr[2] == 'I' && raw_hdr[3] == 'F') {
349      is_ivf = 1;
350
351      if (mem_get_le16(raw_hdr + 4) != 0)
352        fprintf(stderr, "Error: Unrecognized IVF version! This file may not"
353                " decode properly.");
354
355      *fourcc = mem_get_le32(raw_hdr + 8);
356      *width = mem_get_le16(raw_hdr + 12);
357      *height = mem_get_le16(raw_hdr + 14);
358      *fps_num = mem_get_le32(raw_hdr + 16);
359      *fps_den = mem_get_le32(raw_hdr + 20);
360
361      /* Some versions of vpxenc used 1/(2*fps) for the timebase, so
362       * we can guess the framerate using only the timebase in this
363       * case. Other files would require reading ahead to guess the
364       * timebase, like we do for webm.
365       */
366      if (*fps_num < 1000) {
367        /* Correct for the factor of 2 applied to the timebase in the
368         * encoder.
369         */
370        if (*fps_num & 1)*fps_den <<= 1;
371        else *fps_num >>= 1;
372      } else {
373        /* Don't know FPS for sure, and don't have readahead code
374         * (yet?), so just default to 30fps.
375         */
376        *fps_num = 30;
377        *fps_den = 1;
378      }
379    }
380  }
381
382  if (!is_ivf)
383    rewind(infile);
384
385  return is_ivf;
386}
387
388
389unsigned int file_is_raw(FILE *infile,
390                         unsigned int *fourcc,
391                         unsigned int *width,
392                         unsigned int *height,
393                         unsigned int *fps_den,
394                         unsigned int *fps_num) {
395  unsigned char buf[32];
396  int is_raw = 0;
397  vpx_codec_stream_info_t si;
398
399  si.sz = sizeof(si);
400
401  if (fread(buf, 1, 32, infile) == 32) {
402    int i;
403
404    if (mem_get_le32(buf) < 256 * 1024 * 1024)
405      for (i = 0; i < sizeof(ifaces) / sizeof(ifaces[0]); i++)
406        if (!vpx_codec_peek_stream_info(ifaces[i].iface(),
407                                        buf + 4, 32 - 4, &si)) {
408          is_raw = 1;
409          *fourcc = ifaces[i].fourcc;
410          *width = si.w;
411          *height = si.h;
412          *fps_num = 30;
413          *fps_den = 1;
414          break;
415        }
416  }
417
418  rewind(infile);
419  return is_raw;
420}
421
422
423static int
424nestegg_read_cb(void *buffer, size_t length, void *userdata) {
425  FILE *f = userdata;
426
427  if (fread(buffer, 1, length, f) < length) {
428    if (ferror(f))
429      return -1;
430    if (feof(f))
431      return 0;
432  }
433  return 1;
434}
435
436
437static int
438nestegg_seek_cb(int64_t offset, int whence, void *userdata) {
439  switch (whence) {
440    case NESTEGG_SEEK_SET:
441      whence = SEEK_SET;
442      break;
443    case NESTEGG_SEEK_CUR:
444      whence = SEEK_CUR;
445      break;
446    case NESTEGG_SEEK_END:
447      whence = SEEK_END;
448      break;
449  };
450  return fseek(userdata, (long)offset, whence) ? -1 : 0;
451}
452
453
454static int64_t
455nestegg_tell_cb(void *userdata) {
456  return ftell(userdata);
457}
458
459
460static void
461nestegg_log_cb(nestegg *context, unsigned int severity, char const *format,
462               ...) {
463  va_list ap;
464
465  va_start(ap, format);
466  vfprintf(stderr, format, ap);
467  fprintf(stderr, "\n");
468  va_end(ap);
469}
470
471
472static int
473webm_guess_framerate(struct input_ctx *input,
474                     unsigned int     *fps_den,
475                     unsigned int     *fps_num) {
476  unsigned int i;
477  uint64_t     tstamp = 0;
478
479  /* Check to see if we can seek before we parse any data. */
480  if (nestegg_track_seek(input->nestegg_ctx, input->video_track, 0)) {
481    fprintf(stderr,
482            "WARNING: Failed to guess framerate (no Cues), set to 30fps.\n");
483    *fps_num = 30;
484    *fps_den = 1;
485    return 0;
486  }
487
488  /* Guess the framerate. Read up to 1 second, or 50 video packets,
489   * whichever comes first.
490   */
491  for (i = 0; tstamp < 1000000000 && i < 50;) {
492    nestegg_packet *pkt;
493    unsigned int track;
494
495    if (nestegg_read_packet(input->nestegg_ctx, &pkt) <= 0)
496      break;
497
498    nestegg_packet_track(pkt, &track);
499    if (track == input->video_track) {
500      nestegg_packet_tstamp(pkt, &tstamp);
501      i++;
502    }
503
504    nestegg_free_packet(pkt);
505  }
506
507  if (nestegg_track_seek(input->nestegg_ctx, input->video_track, 0))
508    goto fail;
509
510  *fps_num = (i - 1) * 1000000;
511  *fps_den = (unsigned int)(tstamp / 1000);
512  return 0;
513fail:
514  nestegg_destroy(input->nestegg_ctx);
515  input->nestegg_ctx = NULL;
516  rewind(input->infile);
517  return 1;
518}
519
520
521static int
522file_is_webm(struct input_ctx *input,
523             unsigned int     *fourcc,
524             unsigned int     *width,
525             unsigned int     *height,
526             unsigned int     *fps_den,
527             unsigned int     *fps_num) {
528  unsigned int i, n;
529  int          track_type = -1;
530  int          codec_id;
531
532  nestegg_io io = {nestegg_read_cb, nestegg_seek_cb, nestegg_tell_cb, 0};
533  nestegg_video_params params;
534
535  io.userdata = input->infile;
536  if (nestegg_init(&input->nestegg_ctx, io, NULL))
537    goto fail;
538
539  if (nestegg_track_count(input->nestegg_ctx, &n))
540    goto fail;
541
542  for (i = 0; i < n; i++) {
543    track_type = nestegg_track_type(input->nestegg_ctx, i);
544
545    if (track_type == NESTEGG_TRACK_VIDEO)
546      break;
547    else if (track_type < 0)
548      goto fail;
549  }
550
551  codec_id = nestegg_track_codec_id(input->nestegg_ctx, i);
552  if (codec_id == NESTEGG_CODEC_VP8) {
553    *fourcc = VP8_FOURCC_MASK;
554  } else if (codec_id == NESTEGG_CODEC_VP9) {
555    *fourcc = VP9_FOURCC_MASK;
556  } else {
557    fprintf(stderr, "Not VPx video, quitting.\n");
558    exit(1);
559  }
560
561  input->video_track = i;
562
563  if (nestegg_track_video_params(input->nestegg_ctx, i, &params))
564    goto fail;
565
566  *fps_den = 0;
567  *fps_num = 0;
568  *width = params.width;
569  *height = params.height;
570  return 1;
571fail:
572  input->nestegg_ctx = NULL;
573  rewind(input->infile);
574  return 0;
575}
576
577
578void show_progress(int frame_in, int frame_out, unsigned long dx_time) {
579  fprintf(stderr, "%d decoded frames/%d showed frames in %lu us (%.2f fps)\r",
580          frame_in, frame_out, dx_time,
581          (float)frame_out * 1000000.0 / (float)dx_time);
582}
583
584
585void generate_filename(const char *pattern, char *out, size_t q_len,
586                       unsigned int d_w, unsigned int d_h,
587                       unsigned int frame_in) {
588  const char *p = pattern;
589  char *q = out;
590
591  do {
592    char *next_pat = strchr(p, '%');
593
594    if (p == next_pat) {
595      size_t pat_len;
596
597      /* parse the pattern */
598      q[q_len - 1] = '\0';
599      switch (p[1]) {
600        case 'w':
601          snprintf(q, q_len - 1, "%d", d_w);
602          break;
603        case 'h':
604          snprintf(q, q_len - 1, "%d", d_h);
605          break;
606        case '1':
607          snprintf(q, q_len - 1, "%d", frame_in);
608          break;
609        case '2':
610          snprintf(q, q_len - 1, "%02d", frame_in);
611          break;
612        case '3':
613          snprintf(q, q_len - 1, "%03d", frame_in);
614          break;
615        case '4':
616          snprintf(q, q_len - 1, "%04d", frame_in);
617          break;
618        case '5':
619          snprintf(q, q_len - 1, "%05d", frame_in);
620          break;
621        case '6':
622          snprintf(q, q_len - 1, "%06d", frame_in);
623          break;
624        case '7':
625          snprintf(q, q_len - 1, "%07d", frame_in);
626          break;
627        case '8':
628          snprintf(q, q_len - 1, "%08d", frame_in);
629          break;
630        case '9':
631          snprintf(q, q_len - 1, "%09d", frame_in);
632          break;
633        default:
634          die("Unrecognized pattern %%%c\n", p[1]);
635      }
636
637      pat_len = strlen(q);
638      if (pat_len >= q_len - 1)
639        die("Output filename too long.\n");
640      q += pat_len;
641      p += 2;
642      q_len -= pat_len;
643    } else {
644      size_t copy_len;
645
646      /* copy the next segment */
647      if (!next_pat)
648        copy_len = strlen(p);
649      else
650        copy_len = next_pat - p;
651
652      if (copy_len >= q_len - 1)
653        die("Output filename too long.\n");
654
655      memcpy(q, p, copy_len);
656      q[copy_len] = '\0';
657      q += copy_len;
658      p += copy_len;
659      q_len -= copy_len;
660    }
661  } while (*p);
662}
663
664
665int main_loop(int argc, const char **argv_) {
666  vpx_codec_ctx_t          decoder;
667  char                  *fn = NULL;
668  int                    i;
669  uint8_t               *buf = NULL;
670  size_t                 buf_sz = 0, buf_alloc_sz = 0;
671  FILE                  *infile;
672  int                    frame_in = 0, frame_out = 0, flipuv = 0, noblit = 0, do_md5 = 0, progress = 0;
673  int                    stop_after = 0, postproc = 0, summary = 0, quiet = 1;
674  int                    arg_skip = 0;
675  int                    ec_enabled = 0;
676  vpx_codec_iface_t       *iface = NULL;
677  unsigned int           fourcc;
678  unsigned long          dx_time = 0;
679  struct arg               arg;
680  char                   **argv, **argi, **argj;
681  const char             *outfile_pattern = 0;
682  char                    outfile[PATH_MAX];
683  int                     single_file;
684  int                     use_y4m = 1;
685  unsigned int            width;
686  unsigned int            height;
687  unsigned int            fps_den;
688  unsigned int            fps_num;
689  void                   *out = NULL;
690  vpx_codec_dec_cfg_t     cfg = {0};
691#if CONFIG_VP8_DECODER
692  vp8_postproc_cfg_t      vp8_pp_cfg = {0};
693  int                     vp8_dbg_color_ref_frame = 0;
694  int                     vp8_dbg_color_mb_modes = 0;
695  int                     vp8_dbg_color_b_modes = 0;
696  int                     vp8_dbg_display_mv = 0;
697#endif
698  struct input_ctx        input = {0};
699  int                     frames_corrupted = 0;
700  int                     dec_flags = 0;
701  int                     do_scale = 0;
702  int                     stream_w = 0, stream_h = 0;
703  vpx_image_t             *scaled_img = NULL;
704  int                     frame_avail, got_data;
705
706  /* Parse command line */
707  exec_name = argv_[0];
708  argv = argv_dup(argc - 1, argv_ + 1);
709
710  for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
711    memset(&arg, 0, sizeof(arg));
712    arg.argv_step = 1;
713
714    if (arg_match(&arg, &codecarg, argi)) {
715      int j, k = -1;
716
717      for (j = 0; j < sizeof(ifaces) / sizeof(ifaces[0]); j++)
718        if (!strcmp(ifaces[j].name, arg.val))
719          k = j;
720
721      if (k >= 0)
722        iface = ifaces[k].iface();
723      else
724        die("Error: Unrecognized argument (%s) to --codec\n",
725            arg.val);
726    } else if (arg_match(&arg, &looparg, argi)) {
727      // no-op
728    } else if (arg_match(&arg, &outputfile, argi))
729      outfile_pattern = arg.val;
730    else if (arg_match(&arg, &use_yv12, argi)) {
731      use_y4m = 0;
732      flipuv = 1;
733    } else if (arg_match(&arg, &use_i420, argi)) {
734      use_y4m = 0;
735      flipuv = 0;
736    } else if (arg_match(&arg, &flipuvarg, argi))
737      flipuv = 1;
738    else if (arg_match(&arg, &noblitarg, argi))
739      noblit = 1;
740    else if (arg_match(&arg, &progressarg, argi))
741      progress = 1;
742    else if (arg_match(&arg, &limitarg, argi))
743      stop_after = arg_parse_uint(&arg);
744    else if (arg_match(&arg, &skiparg, argi))
745      arg_skip = arg_parse_uint(&arg);
746    else if (arg_match(&arg, &postprocarg, argi))
747      postproc = 1;
748    else if (arg_match(&arg, &md5arg, argi))
749      do_md5 = 1;
750    else if (arg_match(&arg, &summaryarg, argi))
751      summary = 1;
752    else if (arg_match(&arg, &threadsarg, argi))
753      cfg.threads = arg_parse_uint(&arg);
754    else if (arg_match(&arg, &verbosearg, argi))
755      quiet = 0;
756    else if (arg_match(&arg, &scalearg, argi))
757      do_scale = 1;
758
759#if CONFIG_VP8_DECODER
760    else if (arg_match(&arg, &addnoise_level, argi)) {
761      postproc = 1;
762      vp8_pp_cfg.post_proc_flag |= VP8_ADDNOISE;
763      vp8_pp_cfg.noise_level = arg_parse_uint(&arg);
764    } else if (arg_match(&arg, &demacroblock_level, argi)) {
765      postproc = 1;
766      vp8_pp_cfg.post_proc_flag |= VP8_DEMACROBLOCK;
767      vp8_pp_cfg.deblocking_level = arg_parse_uint(&arg);
768    } else if (arg_match(&arg, &deblock, argi)) {
769      postproc = 1;
770      vp8_pp_cfg.post_proc_flag |= VP8_DEBLOCK;
771    } else if (arg_match(&arg, &mfqe, argi)) {
772      postproc = 1;
773      vp8_pp_cfg.post_proc_flag |= VP8_MFQE;
774    } else if (arg_match(&arg, &pp_debug_info, argi)) {
775      unsigned int level = arg_parse_uint(&arg);
776
777      postproc = 1;
778      vp8_pp_cfg.post_proc_flag &= ~0x7;
779
780      if (level)
781        vp8_pp_cfg.post_proc_flag |= level;
782    } else if (arg_match(&arg, &pp_disp_ref_frame, argi)) {
783      unsigned int flags = arg_parse_int(&arg);
784      if (flags) {
785        postproc = 1;
786        vp8_dbg_color_ref_frame = flags;
787      }
788    } else if (arg_match(&arg, &pp_disp_mb_modes, argi)) {
789      unsigned int flags = arg_parse_int(&arg);
790      if (flags) {
791        postproc = 1;
792        vp8_dbg_color_mb_modes = flags;
793      }
794    } else if (arg_match(&arg, &pp_disp_b_modes, argi)) {
795      unsigned int flags = arg_parse_int(&arg);
796      if (flags) {
797        postproc = 1;
798        vp8_dbg_color_b_modes = flags;
799      }
800    } else if (arg_match(&arg, &pp_disp_mvs, argi)) {
801      unsigned int flags = arg_parse_int(&arg);
802      if (flags) {
803        postproc = 1;
804        vp8_dbg_display_mv = flags;
805      }
806    } else if (arg_match(&arg, &error_concealment, argi)) {
807      ec_enabled = 1;
808    }
809
810#endif
811    else
812      argj++;
813  }
814
815  /* Check for unrecognized options */
816  for (argi = argv; *argi; argi++)
817    if (argi[0][0] == '-' && strlen(argi[0]) > 1)
818      die("Error: Unrecognized option %s\n", *argi);
819
820  /* Handle non-option arguments */
821  fn = argv[0];
822
823  if (!fn)
824    usage_exit();
825
826  /* Open file */
827  infile = strcmp(fn, "-") ? fopen(fn, "rb") : set_binary_mode(stdin);
828
829  if (!infile) {
830    fprintf(stderr, "Failed to open file '%s'",
831            strcmp(fn, "-") ? fn : "stdin");
832    return EXIT_FAILURE;
833  }
834#if CONFIG_OS_SUPPORT
835  /* Make sure we don't dump to the terminal, unless forced to with -o - */
836  if (!outfile_pattern && isatty(fileno(stdout)) && !do_md5 && !noblit) {
837    fprintf(stderr,
838            "Not dumping raw video to your terminal. Use '-o -' to "
839            "override.\n");
840    return EXIT_FAILURE;
841  }
842#endif
843  input.infile = infile;
844  if (file_is_ivf(infile, &fourcc, &width, &height, &fps_den,
845                  &fps_num))
846    input.kind = IVF_FILE;
847  else if (file_is_webm(&input, &fourcc, &width, &height, &fps_den, &fps_num))
848    input.kind = WEBM_FILE;
849  else if (file_is_raw(infile, &fourcc, &width, &height, &fps_den, &fps_num))
850    input.kind = RAW_FILE;
851  else {
852    fprintf(stderr, "Unrecognized input file type.\n");
853    return EXIT_FAILURE;
854  }
855
856  /* If the output file is not set or doesn't have a sequence number in
857   * it, then we only open it once.
858   */
859  outfile_pattern = outfile_pattern ? outfile_pattern : "-";
860  single_file = 1;
861  {
862    const char *p = outfile_pattern;
863    do {
864      p = strchr(p, '%');
865      if (p && p[1] >= '1' && p[1] <= '9') {
866        /* pattern contains sequence number, so it's not unique. */
867        single_file = 0;
868        break;
869      }
870      if (p)
871        p++;
872    } while (p);
873  }
874
875  if (single_file && !noblit) {
876    generate_filename(outfile_pattern, outfile, sizeof(outfile) - 1,
877                      width, height, 0);
878    out = out_open(outfile, do_md5);
879  }
880
881  if (use_y4m && !noblit) {
882    char buffer[128];
883
884    if (!single_file) {
885      fprintf(stderr, "YUV4MPEG2 not supported with output patterns,"
886              " try --i420 or --yv12.\n");
887      return EXIT_FAILURE;
888    }
889
890    if (input.kind == WEBM_FILE)
891      if (webm_guess_framerate(&input, &fps_den, &fps_num)) {
892        fprintf(stderr, "Failed to guess framerate -- error parsing "
893                "webm file?\n");
894        return EXIT_FAILURE;
895      }
896
897
898    /*Note: We can't output an aspect ratio here because IVF doesn't
899       store one, and neither does VP8.
900      That will have to wait until these tools support WebM natively.*/
901    snprintf(buffer, sizeof(buffer), "YUV4MPEG2 W%u H%u F%u:%u I%c ",
902             width, height, fps_num, fps_den, 'p');
903    out_put(out, (unsigned char *)buffer,
904            (unsigned int)strlen(buffer), do_md5);
905  }
906
907  /* Try to determine the codec from the fourcc. */
908  for (i = 0; i < sizeof(ifaces) / sizeof(ifaces[0]); i++)
909    if ((fourcc & ifaces[i].fourcc_mask) == ifaces[i].fourcc) {
910      vpx_codec_iface_t  *ivf_iface = ifaces[i].iface();
911
912      if (iface && iface != ivf_iface)
913        fprintf(stderr, "Notice -- IVF header indicates codec: %s\n",
914                ifaces[i].name);
915      else
916        iface = ivf_iface;
917
918      break;
919    }
920
921  dec_flags = (postproc ? VPX_CODEC_USE_POSTPROC : 0) |
922              (ec_enabled ? VPX_CODEC_USE_ERROR_CONCEALMENT : 0);
923  if (vpx_codec_dec_init(&decoder, iface ? iface :  ifaces[0].iface(), &cfg,
924                         dec_flags)) {
925    fprintf(stderr, "Failed to initialize decoder: %s\n", vpx_codec_error(&decoder));
926    return EXIT_FAILURE;
927  }
928
929  if (!quiet)
930    fprintf(stderr, "%s\n", decoder.name);
931
932#if CONFIG_VP8_DECODER
933
934  if (vp8_pp_cfg.post_proc_flag
935      && vpx_codec_control(&decoder, VP8_SET_POSTPROC, &vp8_pp_cfg)) {
936    fprintf(stderr, "Failed to configure postproc: %s\n", vpx_codec_error(&decoder));
937    return EXIT_FAILURE;
938  }
939
940  if (vp8_dbg_color_ref_frame
941      && vpx_codec_control(&decoder, VP8_SET_DBG_COLOR_REF_FRAME, vp8_dbg_color_ref_frame)) {
942    fprintf(stderr, "Failed to configure reference block visualizer: %s\n", vpx_codec_error(&decoder));
943    return EXIT_FAILURE;
944  }
945
946  if (vp8_dbg_color_mb_modes
947      && vpx_codec_control(&decoder, VP8_SET_DBG_COLOR_MB_MODES, vp8_dbg_color_mb_modes)) {
948    fprintf(stderr, "Failed to configure macro block visualizer: %s\n", vpx_codec_error(&decoder));
949    return EXIT_FAILURE;
950  }
951
952  if (vp8_dbg_color_b_modes
953      && vpx_codec_control(&decoder, VP8_SET_DBG_COLOR_B_MODES, vp8_dbg_color_b_modes)) {
954    fprintf(stderr, "Failed to configure block visualizer: %s\n", vpx_codec_error(&decoder));
955    return EXIT_FAILURE;
956  }
957
958  if (vp8_dbg_display_mv
959      && vpx_codec_control(&decoder, VP8_SET_DBG_DISPLAY_MV, vp8_dbg_display_mv)) {
960    fprintf(stderr, "Failed to configure motion vector visualizer: %s\n", vpx_codec_error(&decoder));
961    return EXIT_FAILURE;
962  }
963#endif
964
965
966  if(arg_skip)
967    fprintf(stderr, "Skiping first %d frames.\n", arg_skip);
968  while (arg_skip) {
969    if (read_frame(&input, &buf, &buf_sz, &buf_alloc_sz))
970      break;
971    arg_skip--;
972  }
973
974  frame_avail = 1;
975  got_data = 0;
976
977  /* Decode file */
978  while (frame_avail || got_data) {
979    vpx_codec_iter_t  iter = NULL;
980    vpx_image_t    *img;
981    struct vpx_usec_timer timer;
982    int                   corrupted;
983
984    frame_avail = 0;
985    if (!stop_after || frame_in < stop_after) {
986      if(!read_frame(&input, &buf, &buf_sz, &buf_alloc_sz)) {
987        frame_avail = 1;
988        frame_in++;
989
990        vpx_usec_timer_start(&timer);
991
992        if (vpx_codec_decode(&decoder, buf, (unsigned int)buf_sz, NULL, 0)) {
993          const char *detail = vpx_codec_error_detail(&decoder);
994          fprintf(stderr, "Failed to decode frame: %s\n",
995                  vpx_codec_error(&decoder));
996
997          if (detail)
998            fprintf(stderr, "  Additional information: %s\n", detail);
999          goto fail;
1000        }
1001
1002        vpx_usec_timer_mark(&timer);
1003        dx_time += (unsigned int)vpx_usec_timer_elapsed(&timer);
1004      }
1005    }
1006
1007    vpx_usec_timer_start(&timer);
1008
1009    got_data = 0;
1010    if ((img = vpx_codec_get_frame(&decoder, &iter))) {
1011      ++frame_out;
1012      got_data = 1;
1013    }
1014
1015    vpx_usec_timer_mark(&timer);
1016    dx_time += (unsigned int)vpx_usec_timer_elapsed(&timer);
1017
1018    if (vpx_codec_control(&decoder, VP8D_GET_FRAME_CORRUPTED, &corrupted)) {
1019      fprintf(stderr, "Failed VP8_GET_FRAME_CORRUPTED: %s\n",
1020              vpx_codec_error(&decoder));
1021      goto fail;
1022    }
1023    frames_corrupted += corrupted;
1024
1025    if (progress)
1026      show_progress(frame_in, frame_out, dx_time);
1027
1028    if (!noblit) {
1029      if (frame_out == 1 && img && use_y4m) {
1030        /* Write out the color format to terminate the header line */
1031        const char *color =
1032            img->fmt == VPX_IMG_FMT_444A ? "C444alpha\n" :
1033            img->fmt == VPX_IMG_FMT_I444 ? "C444\n" :
1034            img->fmt == VPX_IMG_FMT_I422 ? "C422\n" :
1035            "C420jpeg\n";
1036
1037        out_put(out, (const unsigned char*)color, strlen(color), do_md5);
1038      }
1039
1040      if (do_scale) {
1041        if (img && frame_out == 1) {
1042          stream_w = img->d_w;
1043          stream_h = img->d_h;
1044          scaled_img = vpx_img_alloc(NULL, VPX_IMG_FMT_I420,
1045                                     stream_w, stream_h, 16);
1046        }
1047        if (img && (img->d_w != stream_w || img->d_h != stream_h)) {
1048          assert(img->fmt == VPX_IMG_FMT_I420);
1049          I420Scale(img->planes[VPX_PLANE_Y], img->stride[VPX_PLANE_Y],
1050                    img->planes[VPX_PLANE_U], img->stride[VPX_PLANE_U],
1051                    img->planes[VPX_PLANE_V], img->stride[VPX_PLANE_V],
1052                    img->d_w, img->d_h,
1053                    scaled_img->planes[VPX_PLANE_Y],
1054                    scaled_img->stride[VPX_PLANE_Y],
1055                    scaled_img->planes[VPX_PLANE_U],
1056                    scaled_img->stride[VPX_PLANE_U],
1057                    scaled_img->planes[VPX_PLANE_V],
1058                    scaled_img->stride[VPX_PLANE_V],
1059                    stream_w, stream_h,
1060                    kFilterBox);
1061          img = scaled_img;
1062        }
1063      }
1064
1065      if (img) {
1066        unsigned int y;
1067        char out_fn[PATH_MAX];
1068        uint8_t *buf;
1069        unsigned int c_w =
1070            img->x_chroma_shift ? (1 + img->d_w) >> img->x_chroma_shift
1071                                : img->d_w;
1072        unsigned int c_h =
1073            img->y_chroma_shift ? (1 + img->d_h) >> img->y_chroma_shift
1074                                : img->d_h;
1075
1076        if (!single_file) {
1077          size_t len = sizeof(out_fn) - 1;
1078
1079          out_fn[len] = '\0';
1080          generate_filename(outfile_pattern, out_fn, len - 1,
1081                            img->d_w, img->d_h, frame_in);
1082          out = out_open(out_fn, do_md5);
1083        } else if (use_y4m)
1084          out_put(out, (unsigned char *)"FRAME\n", 6, do_md5);
1085
1086        buf = img->planes[VPX_PLANE_Y];
1087
1088        for (y = 0; y < img->d_h; y++) {
1089          out_put(out, buf, img->d_w, do_md5);
1090          buf += img->stride[VPX_PLANE_Y];
1091        }
1092
1093        buf = img->planes[flipuv ? VPX_PLANE_V : VPX_PLANE_U];
1094
1095        for (y = 0; y < c_h; y++) {
1096          out_put(out, buf, c_w, do_md5);
1097          buf += img->stride[VPX_PLANE_U];
1098        }
1099
1100        buf = img->planes[flipuv ? VPX_PLANE_U : VPX_PLANE_V];
1101
1102        for (y = 0; y < c_h; y++) {
1103          out_put(out, buf, c_w, do_md5);
1104          buf += img->stride[VPX_PLANE_V];
1105        }
1106
1107        if (!single_file)
1108          out_close(out, out_fn, do_md5);
1109      }
1110    }
1111
1112    if (stop_after && frame_in >= stop_after)
1113      break;
1114  }
1115
1116  if (summary || progress) {
1117    show_progress(frame_in, frame_out, dx_time);
1118    fprintf(stderr, "\n");
1119  }
1120
1121  if (frames_corrupted)
1122    fprintf(stderr, "WARNING: %d frames corrupted.\n", frames_corrupted);
1123
1124fail:
1125
1126  if (vpx_codec_destroy(&decoder)) {
1127    fprintf(stderr, "Failed to destroy decoder: %s\n", vpx_codec_error(&decoder));
1128    return EXIT_FAILURE;
1129  }
1130
1131  if (single_file && !noblit)
1132    out_close(out, outfile, do_md5);
1133
1134  if (input.nestegg_ctx)
1135    nestegg_destroy(input.nestegg_ctx);
1136  if (input.kind != WEBM_FILE)
1137    free(buf);
1138  fclose(infile);
1139  free(argv);
1140
1141  return frames_corrupted ? EXIT_FAILURE : EXIT_SUCCESS;
1142}
1143
1144int main(int argc, const char **argv_) {
1145  unsigned int loops = 1, i;
1146  char **argv, **argi, **argj;
1147  struct arg arg;
1148  int error = 0;
1149
1150  argv = argv_dup(argc - 1, argv_ + 1);
1151  for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
1152    memset(&arg, 0, sizeof(arg));
1153    arg.argv_step = 1;
1154
1155    if (arg_match(&arg, &looparg, argi)) {
1156      loops = arg_parse_uint(&arg);
1157      break;
1158    }
1159  }
1160  free(argv);
1161  for (i = 0; !error && i < loops; i++)
1162    error = main_loop(argc, argv_);
1163  return error;
1164}
1165