xref: /aosp_15_r20/external/libaom/apps/aomdec.c (revision 77c1e3ccc04c968bd2bc212e87364f250e820521)
1 /*
2  * Copyright (c) 2016, Alliance for Open Media. All rights reserved.
3  *
4  * This source code is subject to the terms of the BSD 2 Clause License and
5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6  * was not distributed with this source code in the LICENSE file, you can
7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8  * Media Patent License 1.0 was not distributed with this source code in the
9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10  */
11 
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <stdarg.h>
15 #include <string.h>
16 #include <limits.h>
17 
18 #include "config/aom_config.h"
19 
20 #if CONFIG_OS_SUPPORT
21 #if HAVE_UNISTD_H
22 #include <unistd.h>  // NOLINT
23 #elif !defined(STDOUT_FILENO)
24 #define STDOUT_FILENO 1
25 #endif
26 #endif
27 
28 #include "aom/aom_decoder.h"
29 #include "aom/aomdx.h"
30 #include "aom_ports/aom_timer.h"
31 #include "aom_ports/mem_ops.h"
32 #include "common/args.h"
33 #include "common/ivfdec.h"
34 #include "common/md5_utils.h"
35 #include "common/obudec.h"
36 #include "common/tools_common.h"
37 
38 #if CONFIG_WEBM_IO
39 #include "common/webmdec.h"
40 #endif
41 
42 #include "common/rawenc.h"
43 #include "common/y4menc.h"
44 
45 #if CONFIG_LIBYUV
46 #include "third_party/libyuv/include/libyuv/scale.h"
47 #endif
48 
49 static const char *exec_name;
50 
51 struct AvxDecInputContext {
52   struct AvxInputContext *aom_input_ctx;
53   struct ObuDecInputContext *obu_ctx;
54   struct WebmInputContext *webm_ctx;
55 };
56 
57 static const arg_def_t help =
58     ARG_DEF(NULL, "help", 0, "Show usage options and exit");
59 static const arg_def_t looparg =
60     ARG_DEF(NULL, "loops", 1, "Number of times to decode the file");
61 static const arg_def_t codecarg = ARG_DEF(NULL, "codec", 1, "Codec to use");
62 static const arg_def_t use_yv12 =
63     ARG_DEF(NULL, "yv12", 0, "Output raw YV12 frames");
64 static const arg_def_t use_i420 =
65     ARG_DEF(NULL, "i420", 0, "Output raw I420 frames");
66 static const arg_def_t flipuvarg =
67     ARG_DEF(NULL, "flipuv", 0, "Flip the chroma planes in the output");
68 static const arg_def_t rawvideo =
69     ARG_DEF(NULL, "rawvideo", 0, "Output raw YUV frames");
70 static const arg_def_t noblitarg =
71     ARG_DEF(NULL, "noblit", 0, "Don't process the decoded frames");
72 static const arg_def_t progressarg =
73     ARG_DEF(NULL, "progress", 0, "Show progress after each frame decodes");
74 static const arg_def_t limitarg =
75     ARG_DEF(NULL, "limit", 1, "Stop decoding after n frames");
76 static const arg_def_t skiparg =
77     ARG_DEF(NULL, "skip", 1, "Skip the first n input frames");
78 static const arg_def_t summaryarg =
79     ARG_DEF(NULL, "summary", 0, "Show timing summary");
80 static const arg_def_t outputfile =
81     ARG_DEF("o", "output", 1, "Output file name pattern (see below)");
82 static const arg_def_t threadsarg =
83     ARG_DEF("t", "threads", 1, "Max threads to use");
84 static const arg_def_t rowmtarg =
85     ARG_DEF(NULL, "row-mt", 1, "Enable row based multi-threading, default: 0");
86 static const arg_def_t verbosearg =
87     ARG_DEF("v", "verbose", 0, "Show version string");
88 static const arg_def_t scalearg =
89     ARG_DEF("S", "scale", 0, "Scale output frames uniformly");
90 static const arg_def_t continuearg =
91     ARG_DEF("k", "keep-going", 0, "(debug) Continue decoding after error");
92 static const arg_def_t fb_arg =
93     ARG_DEF(NULL, "frame-buffers", 1, "Number of frame buffers to use");
94 static const arg_def_t md5arg =
95     ARG_DEF(NULL, "md5", 0, "Compute the MD5 sum of the decoded frame");
96 static const arg_def_t framestatsarg =
97     ARG_DEF(NULL, "framestats", 1, "Output per-frame stats (.csv format)");
98 static const arg_def_t outbitdeptharg =
99     ARG_DEF(NULL, "output-bit-depth", 1, "Output bit-depth for decoded frames");
100 static const arg_def_t isannexb =
101     ARG_DEF(NULL, "annexb", 0, "Bitstream is in Annex-B format");
102 static const arg_def_t oppointarg = ARG_DEF(
103     NULL, "oppoint", 1, "Select an operating point of a scalable bitstream");
104 static const arg_def_t outallarg = ARG_DEF(
105     NULL, "all-layers", 0, "Output all decoded frames of a scalable bitstream");
106 static const arg_def_t skipfilmgrain =
107     ARG_DEF(NULL, "skip-film-grain", 0, "Skip film grain application");
108 
109 static const arg_def_t *all_args[] = {
110   &help,           &codecarg, &use_yv12,      &use_i420,
111   &flipuvarg,      &rawvideo, &noblitarg,     &progressarg,
112   &limitarg,       &skiparg,  &summaryarg,    &outputfile,
113   &threadsarg,     &rowmtarg, &verbosearg,    &scalearg,
114   &fb_arg,         &md5arg,   &framestatsarg, &continuearg,
115   &outbitdeptharg, &isannexb, &oppointarg,    &outallarg,
116   &skipfilmgrain,  NULL
117 };
118 
119 #if CONFIG_LIBYUV
120 // Returns 0 on success and returns -1 on failure.
libyuv_scale(const aom_image_t * src,aom_image_t * dst,FilterModeEnum mode)121 static inline int libyuv_scale(const aom_image_t *src, aom_image_t *dst,
122                                FilterModeEnum mode) {
123   if (src->fmt != dst->fmt) {
124     fprintf(stderr,
125             "%s failed to scale output frame because format changed from %s to "
126             "%s\n",
127             exec_name, image_format_to_string(dst->fmt),
128             image_format_to_string(src->fmt));
129     return -1;
130   }
131   if (src->fmt == AOM_IMG_FMT_I42016) {
132     return I420Scale_16(
133         (uint16_t *)src->planes[AOM_PLANE_Y], src->stride[AOM_PLANE_Y] / 2,
134         (uint16_t *)src->planes[AOM_PLANE_U], src->stride[AOM_PLANE_U] / 2,
135         (uint16_t *)src->planes[AOM_PLANE_V], src->stride[AOM_PLANE_V] / 2,
136         src->d_w, src->d_h, (uint16_t *)dst->planes[AOM_PLANE_Y],
137         dst->stride[AOM_PLANE_Y] / 2, (uint16_t *)dst->planes[AOM_PLANE_U],
138         dst->stride[AOM_PLANE_U] / 2, (uint16_t *)dst->planes[AOM_PLANE_V],
139         dst->stride[AOM_PLANE_V] / 2, dst->d_w, dst->d_h, mode);
140   }
141   if (src->fmt == AOM_IMG_FMT_I420) {
142     return I420Scale(src->planes[AOM_PLANE_Y], src->stride[AOM_PLANE_Y],
143                      src->planes[AOM_PLANE_U], src->stride[AOM_PLANE_U],
144                      src->planes[AOM_PLANE_V], src->stride[AOM_PLANE_V],
145                      src->d_w, src->d_h, dst->planes[AOM_PLANE_Y],
146                      dst->stride[AOM_PLANE_Y], dst->planes[AOM_PLANE_U],
147                      dst->stride[AOM_PLANE_U], dst->planes[AOM_PLANE_V],
148                      dst->stride[AOM_PLANE_V], dst->d_w, dst->d_h, mode);
149   }
150   fprintf(stderr, "%s cannot scale output frame of format %s\n", exec_name,
151           image_format_to_string(src->fmt));
152   return -1;
153 }
154 #endif
155 
show_help(FILE * fout,int shorthelp)156 static void show_help(FILE *fout, int shorthelp) {
157   fprintf(fout, "Usage: %s <options> filename\n\n", exec_name);
158 
159   if (shorthelp) {
160     fprintf(fout, "Use --help to see the full list of options.\n");
161     return;
162   }
163 
164   fprintf(fout, "Options:\n");
165   arg_show_usage(fout, all_args);
166   fprintf(fout,
167           "\nOutput File Patterns:\n\n"
168           "  The -o argument specifies the name of the file(s) to "
169           "write to. If the\n  argument does not include any escape "
170           "characters, the output will be\n  written to a single file. "
171           "Otherwise, the filename will be calculated by\n  expanding "
172           "the following escape characters:\n");
173   fprintf(fout,
174           "\n\t%%w   - Frame width"
175           "\n\t%%h   - Frame height"
176           "\n\t%%<n> - Frame number, zero padded to <n> places (1..9)"
177           "\n\n  Pattern arguments are only supported in conjunction "
178           "with the --yv12 and\n  --i420 options. If the -o option is "
179           "not specified, the output will be\n  directed to stdout.\n");
180   fprintf(fout, "\nIncluded decoders:\n\n");
181 
182   for (int i = 0; i < get_aom_decoder_count(); ++i) {
183     aom_codec_iface_t *decoder = get_aom_decoder_by_index(i);
184     fprintf(fout, "    %-6s - %s\n", get_short_name_by_aom_decoder(decoder),
185             aom_codec_iface_name(decoder));
186   }
187 }
188 
usage_exit(void)189 void usage_exit(void) {
190   show_help(stderr, 1);
191   exit(EXIT_FAILURE);
192 }
193 
raw_read_frame(struct AvxInputContext * input_ctx,uint8_t ** buffer,size_t * bytes_read,size_t * buffer_size)194 static int raw_read_frame(struct AvxInputContext *input_ctx, uint8_t **buffer,
195                           size_t *bytes_read, size_t *buffer_size) {
196   unsigned char raw_hdr[RAW_FRAME_HDR_SZ];
197   size_t frame_size = 0;
198 
199   if (read_from_input(input_ctx, RAW_FRAME_HDR_SZ, raw_hdr) !=
200       RAW_FRAME_HDR_SZ) {
201     if (!input_eof(input_ctx))
202       aom_tools_warn("Failed to read RAW frame size\n");
203   } else {
204     const size_t kCorruptFrameThreshold = 256 * 1024 * 1024;
205     const size_t kFrameTooSmallThreshold = 256 * 1024;
206     frame_size = mem_get_le32(raw_hdr);
207 
208     if (frame_size > kCorruptFrameThreshold) {
209       aom_tools_warn("Read invalid frame size (%u)\n",
210                      (unsigned int)frame_size);
211       frame_size = 0;
212     }
213 
214     if (frame_size < kFrameTooSmallThreshold) {
215       aom_tools_warn(
216           "Warning: Read invalid frame size (%u) - not a raw file?\n",
217           (unsigned int)frame_size);
218     }
219 
220     if (frame_size > *buffer_size) {
221       uint8_t *new_buf = realloc(*buffer, 2 * frame_size);
222       if (new_buf) {
223         *buffer = new_buf;
224         *buffer_size = 2 * frame_size;
225       } else {
226         aom_tools_warn("Failed to allocate compressed data buffer\n");
227         frame_size = 0;
228       }
229     }
230   }
231 
232   if (!input_eof(input_ctx)) {
233     if (read_from_input(input_ctx, frame_size, *buffer) != frame_size) {
234       aom_tools_warn("Failed to read full frame\n");
235       return 1;
236     }
237     *bytes_read = frame_size;
238   }
239 
240   return 0;
241 }
242 
read_frame(struct AvxDecInputContext * input,uint8_t ** buf,size_t * bytes_in_buffer,size_t * buffer_size)243 static int read_frame(struct AvxDecInputContext *input, uint8_t **buf,
244                       size_t *bytes_in_buffer, size_t *buffer_size) {
245   switch (input->aom_input_ctx->file_type) {
246 #if CONFIG_WEBM_IO
247     case FILE_TYPE_WEBM:
248       return webm_read_frame(input->webm_ctx, buf, bytes_in_buffer,
249                              buffer_size);
250 #endif
251     case FILE_TYPE_RAW:
252       return raw_read_frame(input->aom_input_ctx, buf, bytes_in_buffer,
253                             buffer_size);
254     case FILE_TYPE_IVF:
255       return ivf_read_frame(input->aom_input_ctx, buf, bytes_in_buffer,
256                             buffer_size, NULL);
257     case FILE_TYPE_OBU:
258       return obudec_read_temporal_unit(input->obu_ctx, buf, bytes_in_buffer,
259                                        buffer_size);
260     default: return 1;
261   }
262 }
263 
file_is_raw(struct AvxInputContext * input)264 static int file_is_raw(struct AvxInputContext *input) {
265   uint8_t buf[32];
266   int is_raw = 0;
267   aom_codec_stream_info_t si;
268   memset(&si, 0, sizeof(si));
269 
270   if (buffer_input(input, 32, buf, /*buffered=*/true) == 32) {
271     int i;
272 
273     if (mem_get_le32(buf) < 256 * 1024 * 1024) {
274       for (i = 0; i < get_aom_decoder_count(); ++i) {
275         aom_codec_iface_t *decoder = get_aom_decoder_by_index(i);
276         if (!aom_codec_peek_stream_info(decoder, buf + 4, 32 - 4, &si)) {
277           is_raw = 1;
278           input->fourcc = get_fourcc_by_aom_decoder(decoder);
279           input->width = si.w;
280           input->height = si.h;
281           input->framerate.numerator = 30;
282           input->framerate.denominator = 1;
283           break;
284         }
285       }
286     }
287   }
288 
289   rewind_detect(input);
290   return is_raw;
291 }
292 
show_progress(int frame_in,int frame_out,uint64_t dx_time)293 static void show_progress(int frame_in, int frame_out, uint64_t dx_time) {
294   fprintf(stderr,
295           "%d decoded frames/%d showed frames in %" PRId64 " us (%.2f fps)\r",
296           frame_in, frame_out, dx_time,
297           (double)frame_out * 1000000.0 / (double)dx_time);
298 }
299 
300 struct ExternalFrameBuffer {
301   uint8_t *data;
302   size_t size;
303   int in_use;
304 };
305 
306 struct ExternalFrameBufferList {
307   int num_external_frame_buffers;
308   struct ExternalFrameBuffer *ext_fb;
309 };
310 
311 // Callback used by libaom to request an external frame buffer. |cb_priv|
312 // Application private data passed into the set function. |min_size| is the
313 // minimum size in bytes needed to decode the next frame. |fb| pointer to the
314 // frame buffer.
get_av1_frame_buffer(void * cb_priv,size_t min_size,aom_codec_frame_buffer_t * fb)315 static int get_av1_frame_buffer(void *cb_priv, size_t min_size,
316                                 aom_codec_frame_buffer_t *fb) {
317   int i;
318   struct ExternalFrameBufferList *const ext_fb_list =
319       (struct ExternalFrameBufferList *)cb_priv;
320   if (ext_fb_list == NULL) return -1;
321 
322   // Find a free frame buffer.
323   for (i = 0; i < ext_fb_list->num_external_frame_buffers; ++i) {
324     if (!ext_fb_list->ext_fb[i].in_use) break;
325   }
326 
327   if (i == ext_fb_list->num_external_frame_buffers) return -1;
328 
329   if (ext_fb_list->ext_fb[i].size < min_size) {
330     free(ext_fb_list->ext_fb[i].data);
331     ext_fb_list->ext_fb[i].data = (uint8_t *)calloc(min_size, sizeof(uint8_t));
332     if (!ext_fb_list->ext_fb[i].data) return -1;
333 
334     ext_fb_list->ext_fb[i].size = min_size;
335   }
336 
337   fb->data = ext_fb_list->ext_fb[i].data;
338   fb->size = ext_fb_list->ext_fb[i].size;
339   ext_fb_list->ext_fb[i].in_use = 1;
340 
341   // Set the frame buffer's private data to point at the external frame buffer.
342   fb->priv = &ext_fb_list->ext_fb[i];
343   return 0;
344 }
345 
346 // Callback used by libaom when there are no references to the frame buffer.
347 // |cb_priv| user private data passed into the set function. |fb| pointer
348 // to the frame buffer.
release_av1_frame_buffer(void * cb_priv,aom_codec_frame_buffer_t * fb)349 static int release_av1_frame_buffer(void *cb_priv,
350                                     aom_codec_frame_buffer_t *fb) {
351   struct ExternalFrameBuffer *const ext_fb =
352       (struct ExternalFrameBuffer *)fb->priv;
353   (void)cb_priv;
354   ext_fb->in_use = 0;
355   return 0;
356 }
357 
generate_filename(const char * pattern,char * out,size_t q_len,unsigned int d_w,unsigned int d_h,unsigned int frame_in)358 static void generate_filename(const char *pattern, char *out, size_t q_len,
359                               unsigned int d_w, unsigned int d_h,
360                               unsigned int frame_in) {
361   const char *p = pattern;
362   char *q = out;
363 
364   do {
365     char *next_pat = strchr(p, '%');
366 
367     if (p == next_pat) {
368       size_t pat_len;
369 
370       /* parse the pattern */
371       q[q_len - 1] = '\0';
372       switch (p[1]) {
373         case 'w': snprintf(q, q_len - 1, "%d", d_w); break;
374         case 'h': snprintf(q, q_len - 1, "%d", d_h); break;
375         case '1': snprintf(q, q_len - 1, "%d", frame_in); break;
376         case '2': snprintf(q, q_len - 1, "%02d", frame_in); break;
377         case '3': snprintf(q, q_len - 1, "%03d", frame_in); break;
378         case '4': snprintf(q, q_len - 1, "%04d", frame_in); break;
379         case '5': snprintf(q, q_len - 1, "%05d", frame_in); break;
380         case '6': snprintf(q, q_len - 1, "%06d", frame_in); break;
381         case '7': snprintf(q, q_len - 1, "%07d", frame_in); break;
382         case '8': snprintf(q, q_len - 1, "%08d", frame_in); break;
383         case '9': snprintf(q, q_len - 1, "%09d", frame_in); break;
384         default: die("Unrecognized pattern %%%c\n", p[1]);
385       }
386 
387       pat_len = strlen(q);
388       if (pat_len >= q_len - 1) die("Output filename too long.\n");
389       q += pat_len;
390       p += 2;
391       q_len -= pat_len;
392     } else {
393       size_t copy_len;
394 
395       /* copy the next segment */
396       if (!next_pat)
397         copy_len = strlen(p);
398       else
399         copy_len = next_pat - p;
400 
401       if (copy_len >= q_len - 1) die("Output filename too long.\n");
402 
403       memcpy(q, p, copy_len);
404       q[copy_len] = '\0';
405       q += copy_len;
406       p += copy_len;
407       q_len -= copy_len;
408     }
409   } while (*p);
410 }
411 
is_single_file(const char * outfile_pattern)412 static int is_single_file(const char *outfile_pattern) {
413   const char *p = outfile_pattern;
414 
415   do {
416     p = strchr(p, '%');
417     if (p && p[1] >= '1' && p[1] <= '9')
418       return 0;  // pattern contains sequence number, so it's not unique
419     if (p) p++;
420   } while (p);
421 
422   return 1;
423 }
424 
print_md5(unsigned char digest[16],const char * filename)425 static void print_md5(unsigned char digest[16], const char *filename) {
426   int i;
427 
428   for (i = 0; i < 16; ++i) printf("%02x", digest[i]);
429   printf("  %s\n", filename);
430 }
431 
open_outfile(const char * name)432 static FILE *open_outfile(const char *name) {
433   if (strcmp("-", name) == 0) {
434     set_binary_mode(stdout);
435     return stdout;
436   } else {
437     FILE *file = fopen(name, "wb");
438     if (!file) fatal("Failed to open output file '%s'", name);
439     return file;
440   }
441 }
442 
main_loop(int argc,const char ** argv_)443 static int main_loop(int argc, const char **argv_) {
444   aom_codec_ctx_t decoder;
445   char *fn = NULL;
446   int i;
447   int ret = EXIT_FAILURE;
448   uint8_t *buf = NULL;
449   size_t bytes_in_buffer = 0, buffer_size = 0;
450   FILE *infile;
451   int frame_in = 0, frame_out = 0, flipuv = 0, noblit = 0;
452   int do_md5 = 0, progress = 0;
453   int stop_after = 0, summary = 0, quiet = 1;
454   int arg_skip = 0;
455   int keep_going = 0;
456   uint64_t dx_time = 0;
457   struct arg arg;
458   char **argv, **argi, **argj;
459 
460   int single_file;
461   int use_y4m = 1;
462   int opt_yv12 = 0;
463   int opt_i420 = 0;
464   int opt_raw = 0;
465   aom_codec_dec_cfg_t cfg = { 0, 0, 0, !FORCE_HIGHBITDEPTH_DECODING };
466   unsigned int fixed_output_bit_depth = 0;
467   unsigned int is_annexb = 0;
468   int frames_corrupted = 0;
469   int dec_flags = 0;
470   int do_scale = 0;
471   int operating_point = 0;
472   int output_all_layers = 0;
473   int skip_film_grain = 0;
474   int enable_row_mt = 0;
475   aom_image_t *scaled_img = NULL;
476   aom_image_t *img_shifted = NULL;
477   int frame_avail, got_data, flush_decoder = 0;
478   int num_external_frame_buffers = 0;
479   struct ExternalFrameBufferList ext_fb_list = { 0, NULL };
480 
481   const char *outfile_pattern = NULL;
482   char outfile_name[PATH_MAX] = { 0 };
483   FILE *outfile = NULL;
484 
485   FILE *framestats_file = NULL;
486 
487   MD5Context md5_ctx;
488   unsigned char md5_digest[16];
489 
490   struct AvxDecInputContext input = { NULL, NULL, NULL };
491   struct AvxInputContext aom_input_ctx;
492   memset(&aom_input_ctx, 0, sizeof(aom_input_ctx));
493 #if CONFIG_WEBM_IO
494   struct WebmInputContext webm_ctx;
495   memset(&webm_ctx, 0, sizeof(webm_ctx));
496   input.webm_ctx = &webm_ctx;
497 #endif
498   struct ObuDecInputContext obu_ctx = { NULL, NULL, 0, 0, 0 };
499   int is_ivf = 0;
500 
501   obu_ctx.avx_ctx = &aom_input_ctx;
502   input.obu_ctx = &obu_ctx;
503   input.aom_input_ctx = &aom_input_ctx;
504 
505   /* Parse command line */
506   exec_name = argv_[0];
507   argv = argv_dup(argc - 1, argv_ + 1);
508   if (!argv) {
509     fprintf(stderr, "Error allocating argument list\n");
510     return EXIT_FAILURE;
511   }
512 
513   aom_codec_iface_t *interface = NULL;
514   for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
515     memset(&arg, 0, sizeof(arg));
516     arg.argv_step = 1;
517 
518     if (arg_match(&arg, &help, argi)) {
519       show_help(stdout, 0);
520       exit(EXIT_SUCCESS);
521     } else if (arg_match(&arg, &codecarg, argi)) {
522       interface = get_aom_decoder_by_short_name(arg.val);
523       if (!interface)
524         die("Error: Unrecognized argument (%s) to --codec\n", arg.val);
525     } else if (arg_match(&arg, &looparg, argi)) {
526       // no-op
527     } else if (arg_match(&arg, &outputfile, argi)) {
528       outfile_pattern = arg.val;
529     } else if (arg_match(&arg, &use_yv12, argi)) {
530       use_y4m = 0;
531       flipuv = 1;
532       opt_yv12 = 1;
533       opt_i420 = 0;
534       opt_raw = 0;
535     } else if (arg_match(&arg, &use_i420, argi)) {
536       use_y4m = 0;
537       flipuv = 0;
538       opt_yv12 = 0;
539       opt_i420 = 1;
540       opt_raw = 0;
541     } else if (arg_match(&arg, &rawvideo, argi)) {
542       use_y4m = 0;
543       opt_yv12 = 0;
544       opt_i420 = 0;
545       opt_raw = 1;
546     } else if (arg_match(&arg, &flipuvarg, argi)) {
547       flipuv = 1;
548     } else if (arg_match(&arg, &noblitarg, argi)) {
549       noblit = 1;
550     } else if (arg_match(&arg, &progressarg, argi)) {
551       progress = 1;
552     } else if (arg_match(&arg, &limitarg, argi)) {
553       stop_after = arg_parse_uint(&arg);
554     } else if (arg_match(&arg, &skiparg, argi)) {
555       arg_skip = arg_parse_uint(&arg);
556     } else if (arg_match(&arg, &md5arg, argi)) {
557       do_md5 = 1;
558     } else if (arg_match(&arg, &framestatsarg, argi)) {
559       framestats_file = fopen(arg.val, "w");
560       if (!framestats_file) {
561         die("Error: Could not open --framestats file (%s) for writing.\n",
562             arg.val);
563       }
564     } else if (arg_match(&arg, &summaryarg, argi)) {
565       summary = 1;
566     } else if (arg_match(&arg, &threadsarg, argi)) {
567       cfg.threads = arg_parse_uint(&arg);
568 #if !CONFIG_MULTITHREAD
569       if (cfg.threads > 1) {
570         die("Error: --threads=%d is not supported when CONFIG_MULTITHREAD = "
571             "0.\n",
572             cfg.threads);
573       }
574 #endif
575     } else if (arg_match(&arg, &rowmtarg, argi)) {
576       enable_row_mt = arg_parse_uint(&arg);
577     } else if (arg_match(&arg, &verbosearg, argi)) {
578       quiet = 0;
579     } else if (arg_match(&arg, &scalearg, argi)) {
580       do_scale = 1;
581     } else if (arg_match(&arg, &fb_arg, argi)) {
582       num_external_frame_buffers = arg_parse_uint(&arg);
583     } else if (arg_match(&arg, &continuearg, argi)) {
584       keep_going = 1;
585     } else if (arg_match(&arg, &outbitdeptharg, argi)) {
586       fixed_output_bit_depth = arg_parse_uint(&arg);
587     } else if (arg_match(&arg, &isannexb, argi)) {
588       is_annexb = 1;
589       input.obu_ctx->is_annexb = 1;
590     } else if (arg_match(&arg, &oppointarg, argi)) {
591       operating_point = arg_parse_int(&arg);
592     } else if (arg_match(&arg, &outallarg, argi)) {
593       output_all_layers = 1;
594     } else if (arg_match(&arg, &skipfilmgrain, argi)) {
595       skip_film_grain = 1;
596     } else {
597       argj++;
598     }
599   }
600 
601   /* Check for unrecognized options */
602   for (argi = argv; *argi; argi++)
603     if (argi[0][0] == '-' && strlen(argi[0]) > 1)
604       die("Error: Unrecognized option %s\n", *argi);
605 
606   /* Handle non-option arguments */
607   fn = argv[0];
608 
609   if (!fn) {
610     free(argv);
611     fprintf(stderr, "No input file specified!\n");
612     usage_exit();
613   }
614 
615   const bool using_file = strcmp(fn, "-") != 0;
616   /* Open file */
617   infile = using_file ? fopen(fn, "rb") : set_binary_mode(stdin);
618 
619   if (!infile) {
620     fatal("Failed to open input file '%s'", using_file ? fn : "stdin");
621   }
622 #if CONFIG_OS_SUPPORT
623   /* Make sure we don't dump to the terminal, unless forced to with -o - */
624   if (!outfile_pattern && isatty(STDOUT_FILENO) && !do_md5 && !noblit) {
625     fprintf(stderr,
626             "Not dumping raw video to your terminal. Use '-o -' to "
627             "override.\n");
628     free(argv);
629     return EXIT_FAILURE;
630   }
631 #endif
632   input.aom_input_ctx->filename = fn;
633   input.aom_input_ctx->file = infile;
634 
635   // TODO(https://crbug.com/aomedia/1706): webm type does not support reading
636   // from stdin yet, and file_is_webm is not using the detect buffer when
637   // determining the type. Therefore it should only be checked when using a file
638   // and needs to be checked prior to other types.
639   if (false) {
640 #if CONFIG_WEBM_IO
641   } else if (using_file && file_is_webm(input.webm_ctx, input.aom_input_ctx)) {
642     input.aom_input_ctx->file_type = FILE_TYPE_WEBM;
643 #endif
644   } else if (file_is_ivf(input.aom_input_ctx)) {
645     input.aom_input_ctx->file_type = FILE_TYPE_IVF;
646     is_ivf = 1;
647   } else if (file_is_obu(&obu_ctx)) {
648     input.aom_input_ctx->file_type = FILE_TYPE_OBU;
649   } else if (file_is_raw(input.aom_input_ctx)) {
650     input.aom_input_ctx->file_type = FILE_TYPE_RAW;
651   } else {
652     fprintf(stderr, "Unrecognized input file type.\n");
653 #if CONFIG_WEBM_IO
654     if (!using_file) {
655       fprintf(stderr, "aomdec does not support piped WebM input.\n");
656     }
657 #else
658     fprintf(stderr, "aomdec was built without WebM container support.\n");
659 #endif
660     free(argv);
661     return EXIT_FAILURE;
662   }
663 
664   outfile_pattern = outfile_pattern ? outfile_pattern : "-";
665   single_file = is_single_file(outfile_pattern);
666 
667   if (!noblit && single_file) {
668     generate_filename(outfile_pattern, outfile_name, PATH_MAX,
669                       aom_input_ctx.width, aom_input_ctx.height, 0);
670     if (do_md5)
671       MD5Init(&md5_ctx);
672     else
673       outfile = open_outfile(outfile_name);
674   }
675 
676   if (use_y4m && !noblit) {
677     if (!single_file) {
678       fprintf(stderr,
679               "YUV4MPEG2 not supported with output patterns,"
680               " try --i420 or --yv12 or --rawvideo.\n");
681       return EXIT_FAILURE;
682     }
683 
684 #if CONFIG_WEBM_IO
685     if (aom_input_ctx.file_type == FILE_TYPE_WEBM) {
686       if (webm_guess_framerate(input.webm_ctx, input.aom_input_ctx)) {
687         fprintf(stderr,
688                 "Failed to guess framerate -- error parsing "
689                 "webm file?\n");
690         return EXIT_FAILURE;
691       }
692     }
693 #endif
694   }
695 
696   aom_codec_iface_t *fourcc_interface =
697       get_aom_decoder_by_fourcc(aom_input_ctx.fourcc);
698 
699   if (is_ivf && !fourcc_interface)
700     fatal("Unsupported fourcc: %x\n", aom_input_ctx.fourcc);
701 
702   if (interface && fourcc_interface && interface != fourcc_interface)
703     aom_tools_warn("Header indicates codec: %s\n",
704                    aom_codec_iface_name(fourcc_interface));
705   else
706     interface = fourcc_interface;
707 
708   if (!interface) interface = get_aom_decoder_by_index(0);
709 
710   dec_flags = 0;
711   if (aom_codec_dec_init(&decoder, interface, &cfg, dec_flags)) {
712     fprintf(stderr, "Failed to initialize decoder: %s\n",
713             aom_codec_error(&decoder));
714     goto fail2;
715   }
716 
717   if (!quiet) fprintf(stderr, "%s\n", decoder.name);
718 
719   if (AOM_CODEC_CONTROL_TYPECHECKED(&decoder, AV1D_SET_IS_ANNEXB, is_annexb)) {
720     fprintf(stderr, "Failed to set is_annexb: %s\n", aom_codec_error(&decoder));
721     goto fail;
722   }
723 
724   if (AOM_CODEC_CONTROL_TYPECHECKED(&decoder, AV1D_SET_OPERATING_POINT,
725                                     operating_point)) {
726     fprintf(stderr, "Failed to set operating_point: %s\n",
727             aom_codec_error(&decoder));
728     goto fail;
729   }
730 
731   if (AOM_CODEC_CONTROL_TYPECHECKED(&decoder, AV1D_SET_OUTPUT_ALL_LAYERS,
732                                     output_all_layers)) {
733     fprintf(stderr, "Failed to set output_all_layers: %s\n",
734             aom_codec_error(&decoder));
735     goto fail;
736   }
737 
738   if (AOM_CODEC_CONTROL_TYPECHECKED(&decoder, AV1D_SET_SKIP_FILM_GRAIN,
739                                     skip_film_grain)) {
740     fprintf(stderr, "Failed to set skip_film_grain: %s\n",
741             aom_codec_error(&decoder));
742     goto fail;
743   }
744 
745   if (AOM_CODEC_CONTROL_TYPECHECKED(&decoder, AV1D_SET_ROW_MT, enable_row_mt)) {
746     fprintf(stderr, "Failed to set row multithreading mode: %s\n",
747             aom_codec_error(&decoder));
748     goto fail;
749   }
750 
751   if (arg_skip) fprintf(stderr, "Skipping first %d frames.\n", arg_skip);
752   while (arg_skip) {
753     if (read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) break;
754     arg_skip--;
755   }
756 
757   if (num_external_frame_buffers > 0) {
758     ext_fb_list.num_external_frame_buffers = num_external_frame_buffers;
759     ext_fb_list.ext_fb = (struct ExternalFrameBuffer *)calloc(
760         num_external_frame_buffers, sizeof(*ext_fb_list.ext_fb));
761     if (!ext_fb_list.ext_fb) {
762       fprintf(stderr, "Failed to allocate ExternalFrameBuffer\n");
763       goto fail;
764     }
765     if (aom_codec_set_frame_buffer_functions(&decoder, get_av1_frame_buffer,
766                                              release_av1_frame_buffer,
767                                              &ext_fb_list)) {
768       fprintf(stderr, "Failed to configure external frame buffers: %s\n",
769               aom_codec_error(&decoder));
770       goto fail;
771     }
772   }
773 
774   frame_avail = 1;
775   got_data = 0;
776 
777   if (framestats_file) fprintf(framestats_file, "bytes,qp\r\n");
778 
779   /* Decode file */
780   while (frame_avail || got_data) {
781     aom_codec_iter_t iter = NULL;
782     aom_image_t *img;
783     struct aom_usec_timer timer;
784     int corrupted = 0;
785 
786     frame_avail = 0;
787     if (!stop_after || frame_in < stop_after) {
788       if (!read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) {
789         frame_avail = 1;
790         frame_in++;
791 
792         aom_usec_timer_start(&timer);
793 
794         if (aom_codec_decode(&decoder, buf, bytes_in_buffer, NULL)) {
795           const char *detail = aom_codec_error_detail(&decoder);
796           aom_tools_warn("Failed to decode frame %d: %s", frame_in,
797                          aom_codec_error(&decoder));
798 
799           if (detail) aom_tools_warn("Additional information: %s", detail);
800           if (!keep_going) goto fail;
801         }
802 
803         if (framestats_file) {
804           int qp;
805           if (AOM_CODEC_CONTROL_TYPECHECKED(&decoder, AOMD_GET_LAST_QUANTIZER,
806                                             &qp)) {
807             aom_tools_warn("Failed AOMD_GET_LAST_QUANTIZER: %s",
808                            aom_codec_error(&decoder));
809             if (!keep_going) goto fail;
810           }
811           fprintf(framestats_file, "%d,%d\r\n", (int)bytes_in_buffer, qp);
812         }
813 
814         aom_usec_timer_mark(&timer);
815         dx_time += aom_usec_timer_elapsed(&timer);
816       } else {
817         flush_decoder = 1;
818       }
819     } else {
820       flush_decoder = 1;
821     }
822 
823     aom_usec_timer_start(&timer);
824 
825     if (flush_decoder) {
826       // Flush the decoder.
827       if (aom_codec_decode(&decoder, NULL, 0, NULL)) {
828         aom_tools_warn("Failed to flush decoder: %s",
829                        aom_codec_error(&decoder));
830       }
831     }
832 
833     aom_usec_timer_mark(&timer);
834     dx_time += aom_usec_timer_elapsed(&timer);
835 
836     got_data = 0;
837     // TODO(aomedia:3519): Change the prototype of aom_codec_get_frame_fn_t to
838     // facilitate error handling.
839     while ((img = aom_codec_get_frame(&decoder, &iter))) {
840       ++frame_out;
841       got_data = 1;
842 
843       if (AOM_CODEC_CONTROL_TYPECHECKED(&decoder, AOMD_GET_FRAME_CORRUPTED,
844                                         &corrupted)) {
845         aom_tools_warn("Failed AOM_GET_FRAME_CORRUPTED: %s",
846                        aom_codec_error(&decoder));
847         if (!keep_going) goto fail;
848       }
849       frames_corrupted += corrupted;
850 
851       if (progress) show_progress(frame_in, frame_out, dx_time);
852 
853       if (!noblit) {
854         const int PLANES_YUV[] = { AOM_PLANE_Y, AOM_PLANE_U, AOM_PLANE_V };
855         const int PLANES_YVU[] = { AOM_PLANE_Y, AOM_PLANE_V, AOM_PLANE_U };
856         const int *planes = flipuv ? PLANES_YVU : PLANES_YUV;
857 
858         if (do_scale) {
859           if (frame_out == 1) {
860             // If the output frames are to be scaled to a fixed display size
861             // then use the width and height specified in the container. If
862             // either of these is set to 0, use the display size set in the
863             // first frame header. If that is unavailable, use the raw decoded
864             // size of the first decoded frame.
865             int render_width = aom_input_ctx.width;
866             int render_height = aom_input_ctx.height;
867             if (!render_width || !render_height) {
868               int render_size[2];
869               if (AOM_CODEC_CONTROL_TYPECHECKED(&decoder, AV1D_GET_DISPLAY_SIZE,
870                                                 render_size)) {
871                 // As last resort use size of first frame as display size.
872                 render_width = img->d_w;
873                 render_height = img->d_h;
874               } else {
875                 render_width = render_size[0];
876                 render_height = render_size[1];
877               }
878             }
879             scaled_img =
880                 aom_img_alloc(NULL, img->fmt, render_width, render_height, 16);
881             if (!scaled_img) {
882               fprintf(stderr, "Failed to allocate scaled image (%d x %d)\n",
883                       render_width, render_height);
884               goto fail;
885             }
886             scaled_img->bit_depth = img->bit_depth;
887             scaled_img->monochrome = img->monochrome;
888             scaled_img->csp = img->csp;
889           }
890 
891           if (img->d_w != scaled_img->d_w || img->d_h != scaled_img->d_h) {
892 #if CONFIG_LIBYUV
893             if (libyuv_scale(img, scaled_img, kFilterBox) != 0) goto fail;
894             img = scaled_img;
895 #else
896             fprintf(
897                 stderr,
898                 "Failed to scale output frame: %s.\n"
899                 "libyuv is required for scaling but is currently disabled.\n"
900                 "Be sure to specify -DCONFIG_LIBYUV=1 when running cmake.\n",
901                 aom_codec_error(&decoder));
902             goto fail;
903 #endif
904           }
905         }
906         // Default to codec bit depth if output bit depth not set
907         unsigned int output_bit_depth;
908         if (!fixed_output_bit_depth && single_file) {
909           output_bit_depth = img->bit_depth;
910         } else {
911           output_bit_depth = fixed_output_bit_depth;
912         }
913         // Shift up or down if necessary
914         if (output_bit_depth != 0) {
915           if (!aom_shift_img(output_bit_depth, &img, &img_shifted)) {
916             fprintf(stderr, "Error allocating image\n");
917             goto fail;
918           }
919         }
920 
921         aom_input_ctx.width = img->d_w;
922         aom_input_ctx.height = img->d_h;
923 
924         int num_planes = (opt_raw && img->monochrome) ? 1 : 3;
925         if (single_file) {
926           if (use_y4m) {
927             char y4m_buf[Y4M_BUFFER_SIZE] = { 0 };
928             size_t len = 0;
929             if (frame_out == 1) {
930               // Y4M file header
931               len = y4m_write_file_header(
932                   y4m_buf, sizeof(y4m_buf), aom_input_ctx.width,
933                   aom_input_ctx.height, &aom_input_ctx.framerate,
934                   img->monochrome, img->csp, img->fmt, img->bit_depth,
935                   img->range);
936               if (img->csp == AOM_CSP_COLOCATED) {
937                 fprintf(stderr,
938                         "Warning: Y4M lacks a colorspace for colocated "
939                         "chroma. Using a placeholder.\n");
940               }
941               if (do_md5) {
942                 MD5Update(&md5_ctx, (md5byte *)y4m_buf, (unsigned int)len);
943               } else {
944                 fputs(y4m_buf, outfile);
945               }
946             }
947 
948             // Y4M frame header
949             len = y4m_write_frame_header(y4m_buf, sizeof(y4m_buf));
950             if (do_md5) {
951               MD5Update(&md5_ctx, (md5byte *)y4m_buf, (unsigned int)len);
952               y4m_update_image_md5(img, planes, &md5_ctx);
953             } else {
954               fputs(y4m_buf, outfile);
955               y4m_write_image_file(img, planes, outfile);
956             }
957           } else {
958             if (frame_out == 1) {
959               // Check if --yv12 or --i420 options are consistent with the
960               // bit-stream decoded
961               if (opt_i420) {
962                 if (img->fmt != AOM_IMG_FMT_I420 &&
963                     img->fmt != AOM_IMG_FMT_I42016) {
964                   fprintf(stderr,
965                           "Cannot produce i420 output for bit-stream.\n");
966                   goto fail;
967                 }
968               }
969               if (opt_yv12) {
970                 if ((img->fmt != AOM_IMG_FMT_I420 &&
971                      img->fmt != AOM_IMG_FMT_YV12) ||
972                     img->bit_depth != 8) {
973                   fprintf(stderr,
974                           "Cannot produce yv12 output for bit-stream.\n");
975                   goto fail;
976                 }
977               }
978             }
979             if (do_md5) {
980               raw_update_image_md5(img, planes, num_planes, &md5_ctx);
981             } else {
982               raw_write_image_file(img, planes, num_planes, outfile);
983             }
984           }
985         } else {
986           generate_filename(outfile_pattern, outfile_name, PATH_MAX, img->d_w,
987                             img->d_h, frame_in);
988           if (do_md5) {
989             MD5Init(&md5_ctx);
990             if (use_y4m) {
991               y4m_update_image_md5(img, planes, &md5_ctx);
992             } else {
993               raw_update_image_md5(img, planes, num_planes, &md5_ctx);
994             }
995             MD5Final(md5_digest, &md5_ctx);
996             print_md5(md5_digest, outfile_name);
997           } else {
998             outfile = open_outfile(outfile_name);
999             if (use_y4m) {
1000               y4m_write_image_file(img, planes, outfile);
1001             } else {
1002               raw_write_image_file(img, planes, num_planes, outfile);
1003             }
1004             fclose(outfile);
1005           }
1006         }
1007       }
1008     }
1009   }
1010 
1011   if (summary || progress) {
1012     show_progress(frame_in, frame_out, dx_time);
1013     fprintf(stderr, "\n");
1014   }
1015 
1016   if (frames_corrupted) {
1017     fprintf(stderr, "WARNING: %d frames corrupted.\n", frames_corrupted);
1018   } else {
1019     ret = EXIT_SUCCESS;
1020   }
1021 
1022 fail:
1023 
1024   if (aom_codec_destroy(&decoder)) {
1025     fprintf(stderr, "Failed to destroy decoder: %s\n",
1026             aom_codec_error(&decoder));
1027   }
1028 
1029 fail2:
1030 
1031   if (!noblit && single_file) {
1032     if (do_md5) {
1033       MD5Final(md5_digest, &md5_ctx);
1034       print_md5(md5_digest, outfile_name);
1035     } else {
1036       fclose(outfile);
1037     }
1038   }
1039 
1040 #if CONFIG_WEBM_IO
1041   if (input.aom_input_ctx->file_type == FILE_TYPE_WEBM)
1042     webm_free(input.webm_ctx);
1043 #endif
1044   if (input.aom_input_ctx->file_type == FILE_TYPE_OBU)
1045     obudec_free(input.obu_ctx);
1046 
1047   if (input.aom_input_ctx->file_type != FILE_TYPE_WEBM) free(buf);
1048 
1049   if (scaled_img) aom_img_free(scaled_img);
1050   if (img_shifted) aom_img_free(img_shifted);
1051 
1052   for (i = 0; i < ext_fb_list.num_external_frame_buffers; ++i) {
1053     free(ext_fb_list.ext_fb[i].data);
1054   }
1055   free(ext_fb_list.ext_fb);
1056 
1057   fclose(infile);
1058   if (framestats_file) fclose(framestats_file);
1059 
1060   free(argv);
1061 
1062   return ret;
1063 }
1064 
main(int argc,const char ** argv_)1065 int main(int argc, const char **argv_) {
1066   unsigned int loops = 1, i;
1067   char **argv, **argi, **argj;
1068   struct arg arg;
1069   int error = 0;
1070 
1071   argv = argv_dup(argc - 1, argv_ + 1);
1072   if (!argv) {
1073     fprintf(stderr, "Error allocating argument list\n");
1074     return EXIT_FAILURE;
1075   }
1076   for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
1077     memset(&arg, 0, sizeof(arg));
1078     arg.argv_step = 1;
1079 
1080     if (arg_match(&arg, &looparg, argi)) {
1081       loops = arg_parse_uint(&arg);
1082       break;
1083     }
1084   }
1085   free(argv);
1086   for (i = 0; !error && i < loops; i++) error = main_loop(argc, argv_);
1087   return error;
1088 }
1089