1 /*
2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #include <assert.h>
12 #include <limits.h>
13 #include <stdarg.h>
14 #include <stdio.h>
15 #include <stdlib.h>
16 #include <string.h>
17 
18 #include "./vpx_config.h"
19 
20 #if CONFIG_LIBYUV
21 #include "third_party/libyuv/include/libyuv/scale.h"
22 #endif
23 
24 #include "./args.h"
25 #include "./ivfdec.h"
26 
27 #include "vpx/vpx_decoder.h"
28 #include "vpx_ports/mem_ops.h"
29 #include "vpx_ports/vpx_timer.h"
30 
31 #if CONFIG_VP8_DECODER || CONFIG_VP9_DECODER
32 #include "vpx/vp8dx.h"
33 #endif
34 
35 #include "./md5_utils.h"
36 
37 #include "./tools_common.h"
38 #if CONFIG_WEBM_IO
39 #include "./webmdec.h"
40 #endif
41 #include "./y4menc.h"
42 
43 static const char *exec_name;
44 
45 struct VpxDecInputContext {
46   struct VpxInputContext *vpx_input_ctx;
47   struct WebmInputContext *webm_ctx;
48 };
49 
50 static const arg_def_t help =
51     ARG_DEF(NULL, "help", 0, "Show usage options and exit");
52 static const arg_def_t looparg =
53     ARG_DEF(NULL, "loops", 1, "Number of times to decode the file");
54 static const arg_def_t codecarg = ARG_DEF(NULL, "codec", 1, "Codec to use");
55 static const arg_def_t use_yv12 =
56     ARG_DEF(NULL, "yv12", 0, "Output raw YV12 frames");
57 static const arg_def_t use_i420 =
58     ARG_DEF(NULL, "i420", 0, "Output raw I420 frames");
59 static const arg_def_t flipuvarg =
60     ARG_DEF(NULL, "flipuv", 0, "Flip the chroma planes in the output");
61 static const arg_def_t rawvideo =
62     ARG_DEF(NULL, "rawvideo", 0, "Output raw YUV frames");
63 static const arg_def_t noblitarg =
64     ARG_DEF(NULL, "noblit", 0, "Don't process the decoded frames");
65 static const arg_def_t progressarg =
66     ARG_DEF(NULL, "progress", 0, "Show progress after each frame decodes");
67 static const arg_def_t limitarg =
68     ARG_DEF(NULL, "limit", 1, "Stop decoding after n frames");
69 static const arg_def_t skiparg =
70     ARG_DEF(NULL, "skip", 1, "Skip the first n input frames");
71 static const arg_def_t postprocarg =
72     ARG_DEF(NULL, "postproc", 0, "Postprocess decoded frames");
73 static const arg_def_t summaryarg =
74     ARG_DEF(NULL, "summary", 0, "Show timing summary");
75 static const arg_def_t outputfile =
76     ARG_DEF("o", "output", 1, "Output file name pattern (see below)");
77 static const arg_def_t threadsarg =
78     ARG_DEF("t", "threads", 1, "Max threads to use");
79 static const arg_def_t frameparallelarg =
80     ARG_DEF(NULL, "frame-parallel", 0, "Frame parallel decode (ignored)");
81 static const arg_def_t verbosearg =
82     ARG_DEF("v", "verbose", 0, "Show version string");
83 static const arg_def_t error_concealment =
84     ARG_DEF(NULL, "error-concealment", 0, "Enable decoder error-concealment");
85 static const arg_def_t scalearg =
86     ARG_DEF("S", "scale", 0, "Scale output frames uniformly");
87 static const arg_def_t continuearg =
88     ARG_DEF("k", "keep-going", 0, "(debug) Continue decoding after error");
89 static const arg_def_t fb_arg =
90     ARG_DEF(NULL, "frame-buffers", 1, "Number of frame buffers to use");
91 static const arg_def_t md5arg =
92     ARG_DEF(NULL, "md5", 0, "Compute the MD5 sum of the decoded frame");
93 #if CONFIG_VP9_HIGHBITDEPTH
94 static const arg_def_t outbitdeptharg =
95     ARG_DEF(NULL, "output-bit-depth", 1, "Output bit-depth for decoded frames");
96 #endif
97 static const arg_def_t svcdecodingarg = ARG_DEF(
98     NULL, "svc-decode-layer", 1, "Decode SVC stream up to given spatial layer");
99 static const arg_def_t framestatsarg =
100     ARG_DEF(NULL, "framestats", 1, "Output per-frame stats (.csv format)");
101 static const arg_def_t rowmtarg =
102     ARG_DEF(NULL, "row-mt", 1, "Enable multi-threading to run row-wise in VP9");
103 static const arg_def_t lpfoptarg =
104     ARG_DEF(NULL, "lpf-opt", 1,
105             "Do loopfilter without waiting for all threads to sync.");
106 
107 static const arg_def_t *all_args[] = { &help,
108                                        &codecarg,
109                                        &use_yv12,
110                                        &use_i420,
111                                        &flipuvarg,
112                                        &rawvideo,
113                                        &noblitarg,
114                                        &progressarg,
115                                        &limitarg,
116                                        &skiparg,
117                                        &postprocarg,
118                                        &summaryarg,
119                                        &outputfile,
120                                        &threadsarg,
121                                        &frameparallelarg,
122                                        &verbosearg,
123                                        &scalearg,
124                                        &fb_arg,
125                                        &md5arg,
126                                        &error_concealment,
127                                        &continuearg,
128 #if CONFIG_VP9_HIGHBITDEPTH
129                                        &outbitdeptharg,
130 #endif
131                                        &svcdecodingarg,
132                                        &framestatsarg,
133                                        &rowmtarg,
134                                        &lpfoptarg,
135                                        NULL };
136 
137 #if CONFIG_VP8_DECODER
138 static const arg_def_t addnoise_level =
139     ARG_DEF(NULL, "noise-level", 1, "Enable VP8 postproc add noise");
140 static const arg_def_t deblock =
141     ARG_DEF(NULL, "deblock", 0, "Enable VP8 deblocking");
142 static const arg_def_t demacroblock_level = ARG_DEF(
143     NULL, "demacroblock-level", 1, "Enable VP8 demacroblocking, w/ level");
144 static const arg_def_t mfqe =
145     ARG_DEF(NULL, "mfqe", 0, "Enable multiframe quality enhancement");
146 
147 static const arg_def_t *vp8_pp_args[] = { &addnoise_level, &deblock,
148                                           &demacroblock_level, &mfqe, NULL };
149 #endif
150 
151 #if CONFIG_LIBYUV
libyuv_scale(vpx_image_t * src,vpx_image_t * dst,FilterModeEnum mode)152 static INLINE int libyuv_scale(vpx_image_t *src, vpx_image_t *dst,
153                                FilterModeEnum mode) {
154 #if CONFIG_VP9_HIGHBITDEPTH
155   if (src->fmt == VPX_IMG_FMT_I42016) {
156     assert(dst->fmt == VPX_IMG_FMT_I42016);
157     return I420Scale_16(
158         (uint16_t *)src->planes[VPX_PLANE_Y], src->stride[VPX_PLANE_Y] / 2,
159         (uint16_t *)src->planes[VPX_PLANE_U], src->stride[VPX_PLANE_U] / 2,
160         (uint16_t *)src->planes[VPX_PLANE_V], src->stride[VPX_PLANE_V] / 2,
161         src->d_w, src->d_h, (uint16_t *)dst->planes[VPX_PLANE_Y],
162         dst->stride[VPX_PLANE_Y] / 2, (uint16_t *)dst->planes[VPX_PLANE_U],
163         dst->stride[VPX_PLANE_U] / 2, (uint16_t *)dst->planes[VPX_PLANE_V],
164         dst->stride[VPX_PLANE_V] / 2, dst->d_w, dst->d_h, mode);
165   }
166 #endif
167   assert(src->fmt == VPX_IMG_FMT_I420);
168   assert(dst->fmt == VPX_IMG_FMT_I420);
169   return I420Scale(src->planes[VPX_PLANE_Y], src->stride[VPX_PLANE_Y],
170                    src->planes[VPX_PLANE_U], src->stride[VPX_PLANE_U],
171                    src->planes[VPX_PLANE_V], src->stride[VPX_PLANE_V], src->d_w,
172                    src->d_h, dst->planes[VPX_PLANE_Y], dst->stride[VPX_PLANE_Y],
173                    dst->planes[VPX_PLANE_U], dst->stride[VPX_PLANE_U],
174                    dst->planes[VPX_PLANE_V], dst->stride[VPX_PLANE_V], dst->d_w,
175                    dst->d_h, mode);
176 }
177 #endif
show_help(FILE * fout,int shorthelp)178 static void show_help(FILE *fout, int shorthelp) {
179   int i;
180 
181   fprintf(fout, "Usage: %s <options> filename\n\n", exec_name);
182 
183   if (shorthelp) {
184     fprintf(fout, "Use --help to see the full list of options.\n");
185     return;
186   }
187 
188   fprintf(fout, "Options:\n");
189   arg_show_usage(fout, all_args);
190 #if CONFIG_VP8_DECODER
191   fprintf(fout, "\nVP8 Postprocessing Options:\n");
192   arg_show_usage(fout, vp8_pp_args);
193 #endif
194   fprintf(fout,
195           "\nOutput File Patterns:\n\n"
196           "  The -o argument specifies the name of the file(s) to "
197           "write to. If the\n  argument does not include any escape "
198           "characters, the output will be\n  written to a single file. "
199           "Otherwise, the filename will be calculated by\n  expanding "
200           "the following escape characters:\n");
201   fprintf(fout,
202           "\n\t%%w   - Frame width"
203           "\n\t%%h   - Frame height"
204           "\n\t%%<n> - Frame number, zero padded to <n> places (1..9)"
205           "\n\n  Pattern arguments are only supported in conjunction "
206           "with the --yv12 and\n  --i420 options. If the -o option is "
207           "not specified, the output will be\n  directed to stdout.\n");
208   fprintf(fout, "\nIncluded decoders:\n\n");
209 
210   for (i = 0; i < get_vpx_decoder_count(); ++i) {
211     const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
212     fprintf(fout, "    %-6s - %s\n", decoder->name,
213             vpx_codec_iface_name(decoder->codec_interface()));
214   }
215 }
216 
usage_exit(void)217 void usage_exit(void) {
218   show_help(stderr, 1);
219   exit(EXIT_FAILURE);
220 }
221 
raw_read_frame(FILE * infile,uint8_t ** buffer,size_t * bytes_read,size_t * buffer_size)222 static int raw_read_frame(FILE *infile, uint8_t **buffer, size_t *bytes_read,
223                           size_t *buffer_size) {
224   char raw_hdr[RAW_FRAME_HDR_SZ];
225   size_t frame_size = 0;
226 
227   if (fread(raw_hdr, RAW_FRAME_HDR_SZ, 1, infile) != 1) {
228     if (!feof(infile)) warn("Failed to read RAW frame size\n");
229   } else {
230     const size_t kCorruptFrameThreshold = 256 * 1024 * 1024;
231     const size_t kFrameTooSmallThreshold = 256 * 1024;
232     frame_size = mem_get_le32(raw_hdr);
233 
234     if (frame_size > kCorruptFrameThreshold) {
235       warn("Read invalid frame size (%u)\n", (unsigned int)frame_size);
236       frame_size = 0;
237     }
238 
239     if (frame_size < kFrameTooSmallThreshold) {
240       warn("Warning: Read invalid frame size (%u) - not a raw file?\n",
241            (unsigned int)frame_size);
242     }
243 
244     if (frame_size > *buffer_size) {
245       uint8_t *new_buf = realloc(*buffer, 2 * frame_size);
246       if (new_buf) {
247         *buffer = new_buf;
248         *buffer_size = 2 * frame_size;
249       } else {
250         warn("Failed to allocate compressed data buffer\n");
251         frame_size = 0;
252       }
253     }
254   }
255 
256   if (!feof(infile)) {
257     if (fread(*buffer, 1, frame_size, infile) != frame_size) {
258       warn("Failed to read full frame\n");
259       return 1;
260     }
261     *bytes_read = frame_size;
262     return 0;
263   }
264 
265   return 1;
266 }
267 
dec_read_frame(struct VpxDecInputContext * input,uint8_t ** buf,size_t * bytes_in_buffer,size_t * buffer_size)268 static int dec_read_frame(struct VpxDecInputContext *input, uint8_t **buf,
269                           size_t *bytes_in_buffer, size_t *buffer_size) {
270   switch (input->vpx_input_ctx->file_type) {
271 #if CONFIG_WEBM_IO
272     case FILE_TYPE_WEBM:
273       return webm_read_frame(input->webm_ctx, buf, bytes_in_buffer);
274 #endif
275     case FILE_TYPE_RAW:
276       return raw_read_frame(input->vpx_input_ctx->file, buf, bytes_in_buffer,
277                             buffer_size);
278     case FILE_TYPE_IVF:
279       return ivf_read_frame(input->vpx_input_ctx->file, buf, bytes_in_buffer,
280                             buffer_size);
281     default: return 1;
282   }
283 }
284 
update_image_md5(const vpx_image_t * img,const int planes[3],MD5Context * md5)285 static void update_image_md5(const vpx_image_t *img, const int planes[3],
286                              MD5Context *md5) {
287   int i, y;
288 
289   for (i = 0; i < 3; ++i) {
290     const int plane = planes[i];
291     const unsigned char *buf = img->planes[plane];
292     const int stride = img->stride[plane];
293     const int w = vpx_img_plane_width(img, plane) *
294                   ((img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
295     const int h = vpx_img_plane_height(img, plane);
296 
297     for (y = 0; y < h; ++y) {
298       MD5Update(md5, buf, w);
299       buf += stride;
300     }
301   }
302 }
303 
write_image_file(const vpx_image_t * img,const int planes[3],FILE * file)304 static void write_image_file(const vpx_image_t *img, const int planes[3],
305                              FILE *file) {
306   int i, y;
307 #if CONFIG_VP9_HIGHBITDEPTH
308   const int bytes_per_sample = ((img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
309 #else
310   const int bytes_per_sample = 1;
311 #endif
312 
313   for (i = 0; i < 3; ++i) {
314     const int plane = planes[i];
315     const unsigned char *buf = img->planes[plane];
316     const int stride = img->stride[plane];
317     const int w = vpx_img_plane_width(img, plane);
318     const int h = vpx_img_plane_height(img, plane);
319 
320     for (y = 0; y < h; ++y) {
321       fwrite(buf, bytes_per_sample, w, file);
322       buf += stride;
323     }
324   }
325 }
326 
file_is_raw(struct VpxInputContext * input)327 static int file_is_raw(struct VpxInputContext *input) {
328   uint8_t buf[32];
329   int is_raw = 0;
330   vpx_codec_stream_info_t si;
331 
332   si.sz = sizeof(si);
333 
334   if (fread(buf, 1, 32, input->file) == 32) {
335     int i;
336 
337     if (mem_get_le32(buf) < 256 * 1024 * 1024) {
338       for (i = 0; i < get_vpx_decoder_count(); ++i) {
339         const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
340         if (!vpx_codec_peek_stream_info(decoder->codec_interface(), buf + 4,
341                                         32 - 4, &si)) {
342           is_raw = 1;
343           input->fourcc = decoder->fourcc;
344           input->width = si.w;
345           input->height = si.h;
346           input->framerate.numerator = 30;
347           input->framerate.denominator = 1;
348           break;
349         }
350       }
351     }
352   }
353 
354   rewind(input->file);
355   return is_raw;
356 }
357 
show_progress(int frame_in,int frame_out,uint64_t dx_time)358 static void show_progress(int frame_in, int frame_out, uint64_t dx_time) {
359   fprintf(stderr,
360           "%d decoded frames/%d showed frames in %" PRId64 " us (%.2f fps)\r",
361           frame_in, frame_out, dx_time,
362           (double)frame_out * 1000000.0 / (double)dx_time);
363 }
364 
365 struct ExternalFrameBuffer {
366   uint8_t *data;
367   size_t size;
368   int in_use;
369 };
370 
371 struct ExternalFrameBufferList {
372   int num_external_frame_buffers;
373   struct ExternalFrameBuffer *ext_fb;
374 };
375 
376 // Callback used by libvpx to request an external frame buffer. |cb_priv|
377 // Application private data passed into the set function. |min_size| is the
378 // minimum size in bytes needed to decode the next frame. |fb| pointer to the
379 // frame buffer.
get_vp9_frame_buffer(void * cb_priv,size_t min_size,vpx_codec_frame_buffer_t * fb)380 static int get_vp9_frame_buffer(void *cb_priv, size_t min_size,
381                                 vpx_codec_frame_buffer_t *fb) {
382   int i;
383   struct ExternalFrameBufferList *const ext_fb_list =
384       (struct ExternalFrameBufferList *)cb_priv;
385   if (ext_fb_list == NULL) return -1;
386 
387   // Find a free frame buffer.
388   for (i = 0; i < ext_fb_list->num_external_frame_buffers; ++i) {
389     if (!ext_fb_list->ext_fb[i].in_use) break;
390   }
391 
392   if (i == ext_fb_list->num_external_frame_buffers) return -1;
393 
394   if (ext_fb_list->ext_fb[i].size < min_size) {
395     free(ext_fb_list->ext_fb[i].data);
396     ext_fb_list->ext_fb[i].data = (uint8_t *)calloc(min_size, sizeof(uint8_t));
397     if (!ext_fb_list->ext_fb[i].data) return -1;
398 
399     ext_fb_list->ext_fb[i].size = min_size;
400   }
401 
402   fb->data = ext_fb_list->ext_fb[i].data;
403   fb->size = ext_fb_list->ext_fb[i].size;
404   ext_fb_list->ext_fb[i].in_use = 1;
405 
406   // Set the frame buffer's private data to point at the external frame buffer.
407   fb->priv = &ext_fb_list->ext_fb[i];
408   return 0;
409 }
410 
411 // Callback used by libvpx when there are no references to the frame buffer.
412 // |cb_priv| user private data passed into the set function. |fb| pointer
413 // to the frame buffer.
release_vp9_frame_buffer(void * cb_priv,vpx_codec_frame_buffer_t * fb)414 static int release_vp9_frame_buffer(void *cb_priv,
415                                     vpx_codec_frame_buffer_t *fb) {
416   struct ExternalFrameBuffer *const ext_fb =
417       (struct ExternalFrameBuffer *)fb->priv;
418   (void)cb_priv;
419   ext_fb->in_use = 0;
420   return 0;
421 }
422 
generate_filename(const char * pattern,char * out,size_t q_len,unsigned int d_w,unsigned int d_h,unsigned int frame_in)423 static void generate_filename(const char *pattern, char *out, size_t q_len,
424                               unsigned int d_w, unsigned int d_h,
425                               unsigned int frame_in) {
426   const char *p = pattern;
427   char *q = out;
428 
429   do {
430     char *next_pat = strchr(p, '%');
431 
432     if (p == next_pat) {
433       size_t pat_len;
434 
435       /* parse the pattern */
436       q[q_len - 1] = '\0';
437       switch (p[1]) {
438         case 'w': snprintf(q, q_len - 1, "%d", d_w); break;
439         case 'h': snprintf(q, q_len - 1, "%d", d_h); break;
440         case '1': snprintf(q, q_len - 1, "%d", frame_in); break;
441         case '2': snprintf(q, q_len - 1, "%02d", frame_in); break;
442         case '3': snprintf(q, q_len - 1, "%03d", frame_in); break;
443         case '4': snprintf(q, q_len - 1, "%04d", frame_in); break;
444         case '5': snprintf(q, q_len - 1, "%05d", frame_in); break;
445         case '6': snprintf(q, q_len - 1, "%06d", frame_in); break;
446         case '7': snprintf(q, q_len - 1, "%07d", frame_in); break;
447         case '8': snprintf(q, q_len - 1, "%08d", frame_in); break;
448         case '9': snprintf(q, q_len - 1, "%09d", frame_in); break;
449         default: die("Unrecognized pattern %%%c\n", p[1]); break;
450       }
451 
452       pat_len = strlen(q);
453       if (pat_len >= q_len - 1) die("Output filename too long.\n");
454       q += pat_len;
455       p += 2;
456       q_len -= pat_len;
457     } else {
458       size_t copy_len;
459 
460       /* copy the next segment */
461       if (!next_pat)
462         copy_len = strlen(p);
463       else
464         copy_len = next_pat - p;
465 
466       if (copy_len >= q_len - 1) die("Output filename too long.\n");
467 
468       memcpy(q, p, copy_len);
469       q[copy_len] = '\0';
470       q += copy_len;
471       p += copy_len;
472       q_len -= copy_len;
473     }
474   } while (*p);
475 }
476 
is_single_file(const char * outfile_pattern)477 static int is_single_file(const char *outfile_pattern) {
478   const char *p = outfile_pattern;
479 
480   do {
481     p = strchr(p, '%');
482     if (p && p[1] >= '1' && p[1] <= '9')
483       return 0;  // pattern contains sequence number, so it's not unique
484     if (p) p++;
485   } while (p);
486 
487   return 1;
488 }
489 
print_md5(unsigned char digest[16],const char * filename)490 static void print_md5(unsigned char digest[16], const char *filename) {
491   int i;
492 
493   for (i = 0; i < 16; ++i) printf("%02x", digest[i]);
494   printf("  %s\n", filename);
495 }
496 
open_outfile(const char * name)497 static FILE *open_outfile(const char *name) {
498   if (strcmp("-", name) == 0) {
499     set_binary_mode(stdout);
500     return stdout;
501   } else {
502     FILE *file = fopen(name, "wb");
503     if (!file) fatal("Failed to open output file '%s'", name);
504     return file;
505   }
506 }
507 
508 #if CONFIG_VP9_HIGHBITDEPTH
img_shifted_realloc_required(const vpx_image_t * img,const vpx_image_t * shifted,vpx_img_fmt_t required_fmt)509 static int img_shifted_realloc_required(const vpx_image_t *img,
510                                         const vpx_image_t *shifted,
511                                         vpx_img_fmt_t required_fmt) {
512   return img->d_w != shifted->d_w || img->d_h != shifted->d_h ||
513          required_fmt != shifted->fmt;
514 }
515 #endif
516 
main_loop(int argc,const char ** argv_)517 static int main_loop(int argc, const char **argv_) {
518   vpx_codec_ctx_t decoder;
519   char *fn = NULL;
520   int i;
521   int ret = EXIT_FAILURE;
522   uint8_t *buf = NULL;
523   size_t bytes_in_buffer = 0, buffer_size = 0;
524   FILE *infile;
525   int frame_in = 0, frame_out = 0, flipuv = 0, noblit = 0;
526   int do_md5 = 0, progress = 0;
527   int stop_after = 0, postproc = 0, summary = 0, quiet = 1;
528   int arg_skip = 0;
529   int ec_enabled = 0;
530   int keep_going = 0;
531   int enable_row_mt = 0;
532   int enable_lpf_opt = 0;
533   const VpxInterface *interface = NULL;
534   const VpxInterface *fourcc_interface = NULL;
535   uint64_t dx_time = 0;
536   struct arg arg;
537   char **argv, **argi, **argj;
538 
539   int single_file;
540   int use_y4m = 1;
541   int opt_yv12 = 0;
542   int opt_i420 = 0;
543   vpx_codec_dec_cfg_t cfg = { 0, 0, 0 };
544 #if CONFIG_VP9_HIGHBITDEPTH
545   unsigned int output_bit_depth = 0;
546 #endif
547   int svc_decoding = 0;
548   int svc_spatial_layer = 0;
549 #if CONFIG_VP8_DECODER
550   vp8_postproc_cfg_t vp8_pp_cfg = { 0, 0, 0 };
551 #endif
552   int frames_corrupted = 0;
553   int dec_flags = 0;
554   int do_scale = 0;
555   vpx_image_t *scaled_img = NULL;
556 #if CONFIG_VP9_HIGHBITDEPTH
557   vpx_image_t *img_shifted = NULL;
558 #endif
559   int frame_avail, got_data, flush_decoder = 0;
560   int num_external_frame_buffers = 0;
561   struct ExternalFrameBufferList ext_fb_list = { 0, NULL };
562 
563   const char *outfile_pattern = NULL;
564   char outfile_name[PATH_MAX] = { 0 };
565   FILE *outfile = NULL;
566 
567   FILE *framestats_file = NULL;
568 
569   MD5Context md5_ctx;
570   unsigned char md5_digest[16];
571 
572   struct VpxDecInputContext input = { NULL, NULL };
573   struct VpxInputContext vpx_input_ctx;
574 #if CONFIG_WEBM_IO
575   struct WebmInputContext webm_ctx;
576   memset(&(webm_ctx), 0, sizeof(webm_ctx));
577   input.webm_ctx = &webm_ctx;
578 #endif
579   input.vpx_input_ctx = &vpx_input_ctx;
580 
581   /* Parse command line */
582   exec_name = argv_[0];
583   argv = argv_dup(argc - 1, argv_ + 1);
584 
585   for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
586     memset(&arg, 0, sizeof(arg));
587     arg.argv_step = 1;
588 
589     if (arg_match(&arg, &help, argi)) {
590       show_help(stdout, 0);
591       exit(EXIT_SUCCESS);
592     } else if (arg_match(&arg, &codecarg, argi)) {
593       interface = get_vpx_decoder_by_name(arg.val);
594       if (!interface)
595         die("Error: Unrecognized argument (%s) to --codec\n", arg.val);
596     } else if (arg_match(&arg, &looparg, argi)) {
597       // no-op
598     } else if (arg_match(&arg, &outputfile, argi))
599       outfile_pattern = arg.val;
600     else if (arg_match(&arg, &use_yv12, argi)) {
601       use_y4m = 0;
602       flipuv = 1;
603       opt_yv12 = 1;
604     } else if (arg_match(&arg, &use_i420, argi)) {
605       use_y4m = 0;
606       flipuv = 0;
607       opt_i420 = 1;
608     } else if (arg_match(&arg, &rawvideo, argi)) {
609       use_y4m = 0;
610     } else if (arg_match(&arg, &flipuvarg, argi))
611       flipuv = 1;
612     else if (arg_match(&arg, &noblitarg, argi))
613       noblit = 1;
614     else if (arg_match(&arg, &progressarg, argi))
615       progress = 1;
616     else if (arg_match(&arg, &limitarg, argi))
617       stop_after = arg_parse_uint(&arg);
618     else if (arg_match(&arg, &skiparg, argi))
619       arg_skip = arg_parse_uint(&arg);
620     else if (arg_match(&arg, &postprocarg, argi))
621       postproc = 1;
622     else if (arg_match(&arg, &md5arg, argi))
623       do_md5 = 1;
624     else if (arg_match(&arg, &summaryarg, argi))
625       summary = 1;
626     else if (arg_match(&arg, &threadsarg, argi))
627       cfg.threads = arg_parse_uint(&arg);
628 #if CONFIG_VP9_DECODER
629     else if (arg_match(&arg, &frameparallelarg, argi)) {
630       /* ignored for compatibility */
631     }
632 #endif
633     else if (arg_match(&arg, &verbosearg, argi))
634       quiet = 0;
635     else if (arg_match(&arg, &scalearg, argi))
636       do_scale = 1;
637     else if (arg_match(&arg, &fb_arg, argi))
638       num_external_frame_buffers = arg_parse_uint(&arg);
639     else if (arg_match(&arg, &continuearg, argi))
640       keep_going = 1;
641 #if CONFIG_VP9_HIGHBITDEPTH
642     else if (arg_match(&arg, &outbitdeptharg, argi)) {
643       output_bit_depth = arg_parse_uint(&arg);
644     }
645 #endif
646     else if (arg_match(&arg, &svcdecodingarg, argi)) {
647       svc_decoding = 1;
648       svc_spatial_layer = arg_parse_uint(&arg);
649     } else if (arg_match(&arg, &framestatsarg, argi)) {
650       framestats_file = fopen(arg.val, "w");
651       if (!framestats_file) {
652         die("Error: Could not open --framestats file (%s) for writing.\n",
653             arg.val);
654       }
655     } else if (arg_match(&arg, &rowmtarg, argi)) {
656       enable_row_mt = arg_parse_uint(&arg);
657     } else if (arg_match(&arg, &lpfoptarg, argi)) {
658       enable_lpf_opt = arg_parse_uint(&arg);
659     }
660 #if CONFIG_VP8_DECODER
661     else if (arg_match(&arg, &addnoise_level, argi)) {
662       postproc = 1;
663       vp8_pp_cfg.post_proc_flag |= VP8_ADDNOISE;
664       vp8_pp_cfg.noise_level = arg_parse_uint(&arg);
665     } else if (arg_match(&arg, &demacroblock_level, argi)) {
666       postproc = 1;
667       vp8_pp_cfg.post_proc_flag |= VP8_DEMACROBLOCK;
668       vp8_pp_cfg.deblocking_level = arg_parse_uint(&arg);
669     } else if (arg_match(&arg, &deblock, argi)) {
670       postproc = 1;
671       vp8_pp_cfg.post_proc_flag |= VP8_DEBLOCK;
672     } else if (arg_match(&arg, &mfqe, argi)) {
673       postproc = 1;
674       vp8_pp_cfg.post_proc_flag |= VP8_MFQE;
675     } else if (arg_match(&arg, &error_concealment, argi)) {
676       ec_enabled = 1;
677     }
678 #endif  // CONFIG_VP8_DECODER
679     else
680       argj++;
681   }
682 
683   /* Check for unrecognized options */
684   for (argi = argv; *argi; argi++)
685     if (argi[0][0] == '-' && strlen(argi[0]) > 1)
686       die("Error: Unrecognized option %s\n", *argi);
687 
688   /* Handle non-option arguments */
689   fn = argv[0];
690 
691   if (!fn) {
692     free(argv);
693     fprintf(stderr, "No input file specified!\n");
694     usage_exit();
695   }
696   /* Open file */
697   infile = strcmp(fn, "-") ? fopen(fn, "rb") : set_binary_mode(stdin);
698 
699   if (!infile) {
700     fatal("Failed to open input file '%s'", strcmp(fn, "-") ? fn : "stdin");
701   }
702 #if CONFIG_OS_SUPPORT
703   /* Make sure we don't dump to the terminal, unless forced to with -o - */
704   if (!outfile_pattern && isatty(fileno(stdout)) && !do_md5 && !noblit) {
705     fprintf(stderr,
706             "Not dumping raw video to your terminal. Use '-o -' to "
707             "override.\n");
708     return EXIT_FAILURE;
709   }
710 #endif
711   input.vpx_input_ctx->file = infile;
712   if (file_is_ivf(input.vpx_input_ctx))
713     input.vpx_input_ctx->file_type = FILE_TYPE_IVF;
714 #if CONFIG_WEBM_IO
715   else if (file_is_webm(input.webm_ctx, input.vpx_input_ctx))
716     input.vpx_input_ctx->file_type = FILE_TYPE_WEBM;
717 #endif
718   else if (file_is_raw(input.vpx_input_ctx))
719     input.vpx_input_ctx->file_type = FILE_TYPE_RAW;
720   else {
721     fprintf(stderr, "Unrecognized input file type.\n");
722 #if !CONFIG_WEBM_IO
723     fprintf(stderr, "vpxdec was built without WebM container support.\n");
724 #endif
725     free(argv);
726     return EXIT_FAILURE;
727   }
728 
729   outfile_pattern = outfile_pattern ? outfile_pattern : "-";
730   single_file = is_single_file(outfile_pattern);
731 
732   if (!noblit && single_file) {
733     generate_filename(outfile_pattern, outfile_name, PATH_MAX,
734                       vpx_input_ctx.width, vpx_input_ctx.height, 0);
735     if (do_md5)
736       MD5Init(&md5_ctx);
737     else
738       outfile = open_outfile(outfile_name);
739   }
740 
741   if (use_y4m && !noblit) {
742     if (!single_file) {
743       fprintf(stderr,
744               "YUV4MPEG2 not supported with output patterns,"
745               " try --i420 or --yv12 or --rawvideo.\n");
746       return EXIT_FAILURE;
747     }
748 
749 #if CONFIG_WEBM_IO
750     if (vpx_input_ctx.file_type == FILE_TYPE_WEBM) {
751       if (webm_guess_framerate(input.webm_ctx, input.vpx_input_ctx)) {
752         fprintf(stderr,
753                 "Failed to guess framerate -- error parsing "
754                 "webm file?\n");
755         return EXIT_FAILURE;
756       }
757     }
758 #endif
759   }
760 
761   fourcc_interface = get_vpx_decoder_by_fourcc(vpx_input_ctx.fourcc);
762   if (interface && fourcc_interface && interface != fourcc_interface)
763     warn("Header indicates codec: %s\n", fourcc_interface->name);
764   else
765     interface = fourcc_interface;
766 
767   if (!interface) interface = get_vpx_decoder_by_index(0);
768 
769   dec_flags = (postproc ? VPX_CODEC_USE_POSTPROC : 0) |
770               (ec_enabled ? VPX_CODEC_USE_ERROR_CONCEALMENT : 0);
771   if (vpx_codec_dec_init(&decoder, interface->codec_interface(), &cfg,
772                          dec_flags)) {
773     fprintf(stderr, "Failed to initialize decoder: %s\n",
774             vpx_codec_error(&decoder));
775     goto fail2;
776   }
777   if (svc_decoding) {
778     if (vpx_codec_control(&decoder, VP9_DECODE_SVC_SPATIAL_LAYER,
779                           svc_spatial_layer)) {
780       fprintf(stderr, "Failed to set spatial layer for svc decode: %s\n",
781               vpx_codec_error(&decoder));
782       goto fail;
783     }
784   }
785   if (interface->fourcc == VP9_FOURCC &&
786       vpx_codec_control(&decoder, VP9D_SET_ROW_MT, enable_row_mt)) {
787     fprintf(stderr, "Failed to set decoder in row multi-thread mode: %s\n",
788             vpx_codec_error(&decoder));
789     goto fail;
790   }
791   if (interface->fourcc == VP9_FOURCC &&
792       vpx_codec_control(&decoder, VP9D_SET_LOOP_FILTER_OPT, enable_lpf_opt)) {
793     fprintf(stderr, "Failed to set decoder in optimized loopfilter mode: %s\n",
794             vpx_codec_error(&decoder));
795     goto fail;
796   }
797   if (!quiet) fprintf(stderr, "%s\n", decoder.name);
798 
799 #if CONFIG_VP8_DECODER
800   if (vp8_pp_cfg.post_proc_flag &&
801       vpx_codec_control(&decoder, VP8_SET_POSTPROC, &vp8_pp_cfg)) {
802     fprintf(stderr, "Failed to configure postproc: %s\n",
803             vpx_codec_error(&decoder));
804     goto fail;
805   }
806 #endif
807 
808   if (arg_skip) fprintf(stderr, "Skipping first %d frames.\n", arg_skip);
809   while (arg_skip) {
810     if (dec_read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) break;
811     arg_skip--;
812   }
813 
814   if (num_external_frame_buffers > 0) {
815     ext_fb_list.num_external_frame_buffers = num_external_frame_buffers;
816     ext_fb_list.ext_fb = (struct ExternalFrameBuffer *)calloc(
817         num_external_frame_buffers, sizeof(*ext_fb_list.ext_fb));
818     if (vpx_codec_set_frame_buffer_functions(&decoder, get_vp9_frame_buffer,
819                                              release_vp9_frame_buffer,
820                                              &ext_fb_list)) {
821       fprintf(stderr, "Failed to configure external frame buffers: %s\n",
822               vpx_codec_error(&decoder));
823       goto fail;
824     }
825   }
826 
827   frame_avail = 1;
828   got_data = 0;
829 
830   if (framestats_file) fprintf(framestats_file, "bytes,qp\n");
831 
832   /* Decode file */
833   while (frame_avail || got_data) {
834     vpx_codec_iter_t iter = NULL;
835     vpx_image_t *img;
836     struct vpx_usec_timer timer;
837     int corrupted = 0;
838 
839     frame_avail = 0;
840     if (!stop_after || frame_in < stop_after) {
841       if (!dec_read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) {
842         frame_avail = 1;
843         frame_in++;
844 
845         vpx_usec_timer_start(&timer);
846 
847         if (vpx_codec_decode(&decoder, buf, (unsigned int)bytes_in_buffer, NULL,
848                              0)) {
849           const char *detail = vpx_codec_error_detail(&decoder);
850           warn("Failed to decode frame %d: %s", frame_in,
851                vpx_codec_error(&decoder));
852           if (detail) warn("Additional information: %s", detail);
853           corrupted = 1;
854           if (!keep_going) goto fail;
855         }
856 
857         if (framestats_file) {
858           int qp;
859           if (vpx_codec_control(&decoder, VPXD_GET_LAST_QUANTIZER, &qp)) {
860             warn("Failed VPXD_GET_LAST_QUANTIZER: %s",
861                  vpx_codec_error(&decoder));
862             if (!keep_going) goto fail;
863           }
864           fprintf(framestats_file, "%d,%d\n", (int)bytes_in_buffer, qp);
865         }
866 
867         vpx_usec_timer_mark(&timer);
868         dx_time += vpx_usec_timer_elapsed(&timer);
869       } else {
870         flush_decoder = 1;
871       }
872     } else {
873       flush_decoder = 1;
874     }
875 
876     vpx_usec_timer_start(&timer);
877 
878     if (flush_decoder) {
879       // Flush the decoder in frame parallel decode.
880       if (vpx_codec_decode(&decoder, NULL, 0, NULL, 0)) {
881         warn("Failed to flush decoder: %s", vpx_codec_error(&decoder));
882         corrupted = 1;
883         if (!keep_going) goto fail;
884       }
885     }
886 
887     got_data = 0;
888     if ((img = vpx_codec_get_frame(&decoder, &iter))) {
889       ++frame_out;
890       got_data = 1;
891     }
892 
893     vpx_usec_timer_mark(&timer);
894     dx_time += (unsigned int)vpx_usec_timer_elapsed(&timer);
895 
896     if (!corrupted &&
897         vpx_codec_control(&decoder, VP8D_GET_FRAME_CORRUPTED, &corrupted)) {
898       warn("Failed VP8_GET_FRAME_CORRUPTED: %s", vpx_codec_error(&decoder));
899       if (!keep_going) goto fail;
900     }
901     frames_corrupted += corrupted;
902 
903     if (progress) show_progress(frame_in, frame_out, dx_time);
904 
905     if (!noblit && img) {
906       const int PLANES_YUV[] = { VPX_PLANE_Y, VPX_PLANE_U, VPX_PLANE_V };
907       const int PLANES_YVU[] = { VPX_PLANE_Y, VPX_PLANE_V, VPX_PLANE_U };
908       const int *planes = flipuv ? PLANES_YVU : PLANES_YUV;
909 
910       if (do_scale) {
911         if (frame_out == 1) {
912           // If the output frames are to be scaled to a fixed display size then
913           // use the width and height specified in the container. If either of
914           // these is set to 0, use the display size set in the first frame
915           // header. If that is unavailable, use the raw decoded size of the
916           // first decoded frame.
917           int render_width = vpx_input_ctx.width;
918           int render_height = vpx_input_ctx.height;
919           if (!render_width || !render_height) {
920             int render_size[2];
921             if (vpx_codec_control(&decoder, VP9D_GET_DISPLAY_SIZE,
922                                   render_size)) {
923               // As last resort use size of first frame as display size.
924               render_width = img->d_w;
925               render_height = img->d_h;
926             } else {
927               render_width = render_size[0];
928               render_height = render_size[1];
929             }
930           }
931           scaled_img =
932               vpx_img_alloc(NULL, img->fmt, render_width, render_height, 16);
933           scaled_img->bit_depth = img->bit_depth;
934         }
935 
936         if (img->d_w != scaled_img->d_w || img->d_h != scaled_img->d_h) {
937 #if CONFIG_LIBYUV
938           libyuv_scale(img, scaled_img, kFilterBox);
939           img = scaled_img;
940 #else
941           fprintf(stderr,
942                   "Failed  to scale output frame: %s.\n"
943                   "Scaling is disabled in this configuration. "
944                   "To enable scaling, configure with --enable-libyuv\n",
945                   vpx_codec_error(&decoder));
946           goto fail;
947 #endif
948         }
949       }
950 #if CONFIG_VP9_HIGHBITDEPTH
951       // Default to codec bit depth if output bit depth not set
952       if (!output_bit_depth && single_file && !do_md5) {
953         output_bit_depth = img->bit_depth;
954       }
955       // Shift up or down if necessary
956       if (output_bit_depth != 0 && output_bit_depth != img->bit_depth) {
957         const vpx_img_fmt_t shifted_fmt =
958             output_bit_depth == 8
959                 ? img->fmt ^ (img->fmt & VPX_IMG_FMT_HIGHBITDEPTH)
960                 : img->fmt | VPX_IMG_FMT_HIGHBITDEPTH;
961         if (img_shifted &&
962             img_shifted_realloc_required(img, img_shifted, shifted_fmt)) {
963           vpx_img_free(img_shifted);
964           img_shifted = NULL;
965         }
966         if (!img_shifted) {
967           img_shifted =
968               vpx_img_alloc(NULL, shifted_fmt, img->d_w, img->d_h, 16);
969           img_shifted->bit_depth = output_bit_depth;
970         }
971         if (output_bit_depth > img->bit_depth) {
972           vpx_img_upshift(img_shifted, img, output_bit_depth - img->bit_depth);
973         } else {
974           vpx_img_downshift(img_shifted, img,
975                             img->bit_depth - output_bit_depth);
976         }
977         img = img_shifted;
978       }
979 #endif
980 
981       if (single_file) {
982         if (use_y4m) {
983           char buf[Y4M_BUFFER_SIZE] = { 0 };
984           size_t len = 0;
985           if (img->fmt == VPX_IMG_FMT_I440 || img->fmt == VPX_IMG_FMT_I44016) {
986             fprintf(stderr, "Cannot produce y4m output for 440 sampling.\n");
987             goto fail;
988           }
989           if (frame_out == 1) {
990             // Y4M file header
991             len = y4m_write_file_header(
992                 buf, sizeof(buf), vpx_input_ctx.width, vpx_input_ctx.height,
993                 &vpx_input_ctx.framerate, img->fmt, img->bit_depth);
994             if (do_md5) {
995               MD5Update(&md5_ctx, (md5byte *)buf, (unsigned int)len);
996             } else {
997               fputs(buf, outfile);
998             }
999           }
1000 
1001           // Y4M frame header
1002           len = y4m_write_frame_header(buf, sizeof(buf));
1003           if (do_md5) {
1004             MD5Update(&md5_ctx, (md5byte *)buf, (unsigned int)len);
1005           } else {
1006             fputs(buf, outfile);
1007           }
1008         } else {
1009           if (frame_out == 1) {
1010             // Check if --yv12 or --i420 options are consistent with the
1011             // bit-stream decoded
1012             if (opt_i420) {
1013               if (img->fmt != VPX_IMG_FMT_I420 &&
1014                   img->fmt != VPX_IMG_FMT_I42016) {
1015                 fprintf(stderr, "Cannot produce i420 output for bit-stream.\n");
1016                 goto fail;
1017               }
1018             }
1019             if (opt_yv12) {
1020               if ((img->fmt != VPX_IMG_FMT_I420 &&
1021                    img->fmt != VPX_IMG_FMT_YV12) ||
1022                   img->bit_depth != 8) {
1023                 fprintf(stderr, "Cannot produce yv12 output for bit-stream.\n");
1024                 goto fail;
1025               }
1026             }
1027           }
1028         }
1029 
1030         if (do_md5) {
1031           update_image_md5(img, planes, &md5_ctx);
1032         } else {
1033           if (!corrupted) write_image_file(img, planes, outfile);
1034         }
1035       } else {
1036         generate_filename(outfile_pattern, outfile_name, PATH_MAX, img->d_w,
1037                           img->d_h, frame_in);
1038         if (do_md5) {
1039           MD5Init(&md5_ctx);
1040           update_image_md5(img, planes, &md5_ctx);
1041           MD5Final(md5_digest, &md5_ctx);
1042           print_md5(md5_digest, outfile_name);
1043         } else {
1044           outfile = open_outfile(outfile_name);
1045           write_image_file(img, planes, outfile);
1046           fclose(outfile);
1047         }
1048       }
1049     }
1050   }
1051 
1052   if (summary || progress) {
1053     show_progress(frame_in, frame_out, dx_time);
1054     fprintf(stderr, "\n");
1055   }
1056 
1057   if (frames_corrupted) {
1058     fprintf(stderr, "WARNING: %d frames corrupted.\n", frames_corrupted);
1059   } else {
1060     ret = EXIT_SUCCESS;
1061   }
1062 
1063 fail:
1064 
1065   if (vpx_codec_destroy(&decoder)) {
1066     fprintf(stderr, "Failed to destroy decoder: %s\n",
1067             vpx_codec_error(&decoder));
1068   }
1069 
1070 fail2:
1071 
1072   if (!noblit && single_file) {
1073     if (do_md5) {
1074       MD5Final(md5_digest, &md5_ctx);
1075       print_md5(md5_digest, outfile_name);
1076     } else {
1077       fclose(outfile);
1078     }
1079   }
1080 
1081 #if CONFIG_WEBM_IO
1082   if (input.vpx_input_ctx->file_type == FILE_TYPE_WEBM)
1083     webm_free(input.webm_ctx);
1084 #endif
1085 
1086   if (input.vpx_input_ctx->file_type != FILE_TYPE_WEBM) free(buf);
1087 
1088   if (scaled_img) vpx_img_free(scaled_img);
1089 #if CONFIG_VP9_HIGHBITDEPTH
1090   if (img_shifted) vpx_img_free(img_shifted);
1091 #endif
1092 
1093   for (i = 0; i < ext_fb_list.num_external_frame_buffers; ++i) {
1094     free(ext_fb_list.ext_fb[i].data);
1095   }
1096   free(ext_fb_list.ext_fb);
1097 
1098   fclose(infile);
1099   if (framestats_file) fclose(framestats_file);
1100 
1101   free(argv);
1102 
1103   return ret;
1104 }
1105 
main(int argc,const char ** argv_)1106 int main(int argc, const char **argv_) {
1107   unsigned int loops = 1, i;
1108   char **argv, **argi, **argj;
1109   struct arg arg;
1110   int error = 0;
1111 
1112   argv = argv_dup(argc - 1, argv_ + 1);
1113   for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
1114     memset(&arg, 0, sizeof(arg));
1115     arg.argv_step = 1;
1116 
1117     if (arg_match(&arg, &looparg, argi)) {
1118       loops = arg_parse_uint(&arg);
1119       break;
1120     }
1121   }
1122   free(argv);
1123   for (i = 0; !error && i < loops; i++) error = main_loop(argc, argv_);
1124   return error;
1125 }
1126