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