WebM Codec SDK: vpxdec

WebM Codec SDK

vpxdec
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
102 static const arg_def_t *all_args[] = {
103 &help, &codecarg, &use_yv12,
104 &use_i420, &flipuvarg, &rawvideo,
105 &noblitarg, &progressarg, &limitarg,
106 &skiparg, &postprocarg, &summaryarg,
107 &outputfile, &threadsarg, &frameparallelarg,
108 &verbosearg, &scalearg, &fb_arg,
109 &md5arg, &error_concealment, &continuearg,
110 #if CONFIG_VP9_HIGHBITDEPTH
111 &outbitdeptharg,
112 #endif
113 &svcdecodingarg, &framestatsarg, NULL
114 };
115
116 #if CONFIG_VP8_DECODER
117 static const arg_def_t addnoise_level =
118 ARG_DEF(NULL, "noise-level", 1, "Enable VP8 postproc add noise");
119 static const arg_def_t deblock =
120 ARG_DEF(NULL, "deblock", 0, "Enable VP8 deblocking");
121 static const arg_def_t demacroblock_level = ARG_DEF(
122 NULL, "demacroblock-level", 1, "Enable VP8 demacroblocking, w/ level");
123 static const arg_def_t mfqe =
124 ARG_DEF(NULL, "mfqe", 0, "Enable multiframe quality enhancement");
125
126 static const arg_def_t *vp8_pp_args[] = { &addnoise_level, &deblock,
127 &demacroblock_level, &mfqe, NULL };
128 #endif
129
130 #if CONFIG_LIBYUV
131 static INLINE int libyuv_scale(vpx_image_t *src, vpx_image_t *dst,
132 FilterModeEnum mode) {
133 #if CONFIG_VP9_HIGHBITDEPTH
134 if (src->fmt == VPX_IMG_FMT_I42016) {
135 assert(dst->fmt == VPX_IMG_FMT_I42016);
136 return I420Scale_16(
137 (uint16_t *)src->planes[VPX_PLANE_Y], src->stride[VPX_PLANE_Y] / 2,
138 (uint16_t *)src->planes[VPX_PLANE_U], src->stride[VPX_PLANE_U] / 2,
139 (uint16_t *)src->planes[VPX_PLANE_V], src->stride[VPX_PLANE_V] / 2,
140 src->d_w, src->d_h, (uint16_t *)dst->planes[VPX_PLANE_Y],
141 dst->stride[VPX_PLANE_Y] / 2, (uint16_t *)dst->planes[VPX_PLANE_U],
142 dst->stride[VPX_PLANE_U] / 2, (uint16_t *)dst->planes[VPX_PLANE_V],
143 dst->stride[VPX_PLANE_V] / 2, dst->d_w, dst->d_h, mode);
144 }
145 #endif
146 assert(src->fmt == VPX_IMG_FMT_I420);
147 assert(dst->fmt == VPX_IMG_FMT_I420);
148 return I420Scale(src->planes[VPX_PLANE_Y], src->stride[VPX_PLANE_Y],
149 src->planes[VPX_PLANE_U], src->stride[VPX_PLANE_U],
150 src->planes[VPX_PLANE_V], src->stride[VPX_PLANE_V], src->d_w,
151 src->d_h, dst->planes[VPX_PLANE_Y], dst->stride[VPX_PLANE_Y],
152 dst->planes[VPX_PLANE_U], dst->stride[VPX_PLANE_U],
153 dst->planes[VPX_PLANE_V], dst->stride[VPX_PLANE_V], dst->d_w,
154 dst->d_h, mode);
155 }
156 #endif
157 void show_help(FILE *fout, int shorthelp) {
158 int i;
159
160 fprintf(fout, "Usage: %s <options> filename\n\n", exec_name);
161
162 if (shorthelp) {
163 fprintf(fout, "Use --help to see the full list of options.\n");
164 return;
165 }
166
167 fprintf(fout, "Options:\n");
168 arg_show_usage(fout, all_args);
169 #if CONFIG_VP8_DECODER
170 fprintf(fout, "\nVP8 Postprocessing Options:\n");
171 arg_show_usage(fout, vp8_pp_args);
172 #endif
173 fprintf(fout,
174 "\nOutput File Patterns:\n\n"
175 " The -o argument specifies the name of the file(s) to "
176 "write to. If the\n argument does not include any escape "
177 "characters, the output will be\n written to a single file. "
178 "Otherwise, the filename will be calculated by\n expanding "
179 "the following escape characters:\n");
180 fprintf(fout,
181 "\n\t%%w - Frame width"
182 "\n\t%%h - Frame height"
183 "\n\t%%<n> - Frame number, zero padded to <n> places (1..9)"
184 "\n\n Pattern arguments are only supported in conjunction "
185 "with the --yv12 and\n --i420 options. If the -o option is "
186 "not specified, the output will be\n directed to stdout.\n");
187 fprintf(fout, "\nIncluded decoders:\n\n");
188
189 for (i = 0; i < get_vpx_decoder_count(); ++i) {
190 const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
191 fprintf(fout, " %-6s - %s\n", decoder->name,
192 vpx_codec_iface_name(decoder->codec_interface()));
193 }
194 }
195
196 void usage_exit(void) {
197 show_help(stderr, 1);
198 exit(EXIT_FAILURE);
199 }
200
201 static int raw_read_frame(FILE *infile, uint8_t **buffer, size_t *bytes_read,
202 size_t *buffer_size) {
203 char raw_hdr[RAW_FRAME_HDR_SZ];
204 size_t frame_size = 0;
205
206 if (fread(raw_hdr, RAW_FRAME_HDR_SZ, 1, infile) != 1) {
207 if (!feof(infile)) warn("Failed to read RAW frame size\n");
208 } else {
209 const size_t kCorruptFrameThreshold = 256 * 1024 * 1024;
210 const size_t kFrameTooSmallThreshold = 256 * 1024;
211 frame_size = mem_get_le32(raw_hdr);
212
213 if (frame_size > kCorruptFrameThreshold) {
214 warn("Read invalid frame size (%u)\n", (unsigned int)frame_size);
215 frame_size = 0;
216 }
217
218 if (frame_size < kFrameTooSmallThreshold) {
219 warn("Warning: Read invalid frame size (%u) - not a raw file?\n",
220 (unsigned int)frame_size);
221 }
222
223 if (frame_size > *buffer_size) {
224 uint8_t *new_buf = realloc(*buffer, 2 * frame_size);
225 if (new_buf) {
226 *buffer = new_buf;
227 *buffer_size = 2 * frame_size;
228 } else {
229 warn("Failed to allocate compressed data buffer\n");
230 frame_size = 0;
231 }
232 }
233 }
234
235 if (!feof(infile)) {
236 if (fread(*buffer, 1, frame_size, infile) != frame_size) {
237 warn("Failed to read full frame\n");
238 return 1;
239 }
240 *bytes_read = frame_size;
241 }
242
243 return 0;
244 }
245
246 static int read_frame(struct VpxDecInputContext *input, uint8_t **buf,
247 size_t *bytes_in_buffer, size_t *buffer_size) {
248 switch (input->vpx_input_ctx->file_type) {
249 #if CONFIG_WEBM_IO
250 case FILE_TYPE_WEBM:
251 return webm_read_frame(input->webm_ctx, buf, bytes_in_buffer);
252 #endif
253 case FILE_TYPE_RAW:
254 return raw_read_frame(input->vpx_input_ctx->file, buf, bytes_in_buffer,
255 buffer_size);
256 case FILE_TYPE_IVF:
257 return ivf_read_frame(input->vpx_input_ctx->file, buf, bytes_in_buffer,
258 buffer_size);
259 default: return 1;
260 }
261 }
262
263 static void update_image_md5(const vpx_image_t *img, const int planes[3],
264 MD5Context *md5) {
265 int i, y;
266
267 for (i = 0; i < 3; ++i) {
268 const int plane = planes[i];
269 const unsigned char *buf = img->planes[plane];
270 const int stride = img->stride[plane];
271 const int w = vpx_img_plane_width(img, plane) *
272 ((img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
273 const int h = vpx_img_plane_height(img, plane);
274
275 for (y = 0; y < h; ++y) {
276 MD5Update(md5, buf, w);
277 buf += stride;
278 }
279 }
280 }
281
282 static void write_image_file(const vpx_image_t *img, const int planes[3],
283 FILE *file) {
284 int i, y;
285 #if CONFIG_VP9_HIGHBITDEPTH
286 const int bytes_per_sample = ((img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
287 #else
288 const int bytes_per_sample = 1;
289 #endif
290
291 for (i = 0; i < 3; ++i) {
292 const int plane = planes[i];
293 const unsigned char *buf = img->planes[plane];
294 const int stride = img->stride[plane];
295 const int w = vpx_img_plane_width(img, plane);
296 const int h = vpx_img_plane_height(img, plane);
297
298 for (y = 0; y < h; ++y) {
299 fwrite(buf, bytes_per_sample, w, file);
300 buf += stride;
301 }
302 }
303 }
304
305 static int file_is_raw(struct VpxInputContext *input) {
306 uint8_t buf[32];
307 int is_raw = 0;
308 vpx_codec_stream_info_t si;
309
310 si.sz = sizeof(si);
311
312 if (fread(buf, 1, 32, input->file) == 32) {
313 int i;
314
315 if (mem_get_le32(buf) < 256 * 1024 * 1024) {
316 for (i = 0; i < get_vpx_decoder_count(); ++i) {
317 const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
318 if (!vpx_codec_peek_stream_info(decoder->codec_interface(), buf + 4,
319 32 - 4, &si)) {
320 is_raw = 1;
321 input->fourcc = decoder->fourcc;
322 input->width = si.w;
323 input->height = si.h;
324 input->framerate.numerator = 30;
325 input->framerate.denominator = 1;
326 break;
327 }
328 }
329 }
330 }
331
332 rewind(input->file);
333 return is_raw;
334 }
335
336 static void show_progress(int frame_in, int frame_out, uint64_t dx_time) {
337 fprintf(stderr,
338 "%d decoded frames/%d showed frames in %" PRId64 " us (%.2f fps)\r",
339 frame_in, frame_out, dx_time,
340 (double)frame_out * 1000000.0 / (double)dx_time);
341 }
342
343 struct ExternalFrameBuffer {
344 uint8_t *data;
345 size_t size;
346 int in_use;
347 };
348
349 struct ExternalFrameBufferList {
350 int num_external_frame_buffers;
351 struct ExternalFrameBuffer *ext_fb;
352 };
353
354 // Callback used by libvpx to request an external frame buffer. |cb_priv|
355 // Application private data passed into the set function. |min_size| is the
356 // minimum size in bytes needed to decode the next frame. |fb| pointer to the
357 // frame buffer.
358 static int get_vp9_frame_buffer(void *cb_priv, size_t min_size,
359 vpx_codec_frame_buffer_t *fb) {
360 int i;
361 struct ExternalFrameBufferList *const ext_fb_list =
362 (struct ExternalFrameBufferList *)cb_priv;
363 if (ext_fb_list == NULL) return -1;
364
365 // Find a free frame buffer.
366 for (i = 0; i < ext_fb_list->num_external_frame_buffers; ++i) {
367 if (!ext_fb_list->ext_fb[i].in_use) break;
368 }
369
370 if (i == ext_fb_list->num_external_frame_buffers) return -1;
371
372 if (ext_fb_list->ext_fb[i].size < min_size) {
373 free(ext_fb_list->ext_fb[i].data);
374 ext_fb_list->ext_fb[i].data = (uint8_t *)calloc(min_size, sizeof(uint8_t));
375 if (!ext_fb_list->ext_fb[i].data) return -1;
376
377 ext_fb_list->ext_fb[i].size = min_size;
378 }
379
380 fb->data = ext_fb_list->ext_fb[i].data;
381 fb->size = ext_fb_list->ext_fb[i].size;
382 ext_fb_list->ext_fb[i].in_use = 1;
383
384 // Set the frame buffer's private data to point at the external frame buffer.
385 fb->priv = &ext_fb_list->ext_fb[i];
386 return 0;
387 }
388
389 // Callback used by libvpx when there are no references to the frame buffer.
390 // |cb_priv| user private data passed into the set function. |fb| pointer
391 // to the frame buffer.
392 static int release_vp9_frame_buffer(void *cb_priv,
393 vpx_codec_frame_buffer_t *fb) {
394 struct ExternalFrameBuffer *const ext_fb =
395 (struct ExternalFrameBuffer *)fb->priv;
396 (void)cb_priv;
397 ext_fb->in_use = 0;
398 return 0;
399 }
400
401 static void generate_filename(const char *pattern, char *out, size_t q_len,
402 unsigned int d_w, unsigned int d_h,
403 unsigned int frame_in) {
404 const char *p = pattern;
405 char *q = out;
406
407 do {
408 char *next_pat = strchr(p, '%');
409
410 if (p == next_pat) {
411 size_t pat_len;
412
413 /* parse the pattern */
414 q[q_len - 1] = '\0';
415 switch (p[1]) {
416 case 'w': snprintf(q, q_len - 1, "%d", d_w); break;
417 case 'h': snprintf(q, q_len - 1, "%d", d_h); break;
418 case '1': snprintf(q, q_len - 1, "%d", frame_in); break;
419 case '2': snprintf(q, q_len - 1, "%02d", frame_in); break;
420 case '3': snprintf(q, q_len - 1, "%03d", frame_in); break;
421 case '4': snprintf(q, q_len - 1, "%04d", frame_in); break;
422 case '5': snprintf(q, q_len - 1, "%05d", frame_in); break;
423 case '6': snprintf(q, q_len - 1, "%06d", frame_in); break;
424 case '7': snprintf(q, q_len - 1, "%07d", frame_in); break;
425 case '8': snprintf(q, q_len - 1, "%08d", frame_in); break;
426 case '9': snprintf(q, q_len - 1, "%09d", frame_in); break;
427 default: die("Unrecognized pattern %%%c\n", p[1]); break;
428 }
429
430 pat_len = strlen(q);
431 if (pat_len >= q_len - 1) die("Output filename too long.\n");
432 q += pat_len;
433 p += 2;
434 q_len -= pat_len;
435 } else {
436 size_t copy_len;
437
438 /* copy the next segment */
439 if (!next_pat)
440 copy_len = strlen(p);
441 else
442 copy_len = next_pat - p;
443
444 if (copy_len >= q_len - 1) die("Output filename too long.\n");
445
446 memcpy(q, p, copy_len);
447 q[copy_len] = '\0';
448 q += copy_len;
449 p += copy_len;
450 q_len -= copy_len;
451 }
452 } while (*p);
453 }
454
455 static int is_single_file(const char *outfile_pattern) {
456 const char *p = outfile_pattern;
457
458 do {
459 p = strchr(p, '%');
460 if (p && p[1] >= '1' && p[1] <= '9')
461 return 0; // pattern contains sequence number, so it's not unique
462 if (p) p++;
463 } while (p);
464
465 return 1;
466 }
467
468 static void print_md5(unsigned char digest[16], const char *filename) {
469 int i;
470
471 for (i = 0; i < 16; ++i) printf("%02x", digest[i]);
472 printf(" %s\n", filename);
473 }
474
475 static FILE *open_outfile(const char *name) {
476 if (strcmp("-", name) == 0) {
477 set_binary_mode(stdout);
478 return stdout;
479 } else {
480 FILE *file = fopen(name, "wb");
481 if (!file) fatal("Failed to open output file '%s'", name);
482 return file;
483 }
484 }
485
486 #if CONFIG_VP9_HIGHBITDEPTH
487 static int img_shifted_realloc_required(const vpx_image_t *img,
488 const vpx_image_t *shifted,
489 vpx_img_fmt_t required_fmt) {
490 return img->d_w != shifted->d_w || img->d_h != shifted->d_h ||
491 required_fmt != shifted->fmt;
492 }
493 #endif
494
495 static int main_loop(int argc, const char **argv_) {
496 vpx_codec_ctx_t decoder;
497 char *fn = NULL;
498 int i;
499 int ret = EXIT_FAILURE;
500 uint8_t *buf = NULL;
501 size_t bytes_in_buffer = 0, buffer_size = 0;
502 FILE *infile;
503 int frame_in = 0, frame_out = 0, flipuv = 0, noblit = 0;
504 int do_md5 = 0, progress = 0;
505 int stop_after = 0, postproc = 0, summary = 0, quiet = 1;
506 int arg_skip = 0;
507 int ec_enabled = 0;
508 int keep_going = 0;
509 const VpxInterface *interface = NULL;
510 const VpxInterface *fourcc_interface = NULL;
511 uint64_t dx_time = 0;
512 struct arg arg;
513 char **argv, **argi, **argj;
514
515 int single_file;
516 int use_y4m = 1;
517 int opt_yv12 = 0;
518 int opt_i420 = 0;
519 vpx_codec_dec_cfg_t cfg = { 0, 0, 0 };
520 #if CONFIG_VP9_HIGHBITDEPTH
521 unsigned int output_bit_depth = 0;
522 #endif
523 int svc_decoding = 0;
524 int svc_spatial_layer = 0;
525 #if CONFIG_VP8_DECODER
526 vp8_postproc_cfg_t vp8_pp_cfg = { 0, 0, 0 };
527 #endif
528 int frames_corrupted = 0;
529 int dec_flags = 0;
530 int do_scale = 0;
531 vpx_image_t *scaled_img = NULL;
532 #if CONFIG_VP9_HIGHBITDEPTH
533 vpx_image_t *img_shifted = NULL;
534 #endif
535 int frame_avail, got_data, flush_decoder = 0;
536 int num_external_frame_buffers = 0;
537 struct ExternalFrameBufferList ext_fb_list = { 0, NULL };
538
539 const char *outfile_pattern = NULL;
540 char outfile_name[PATH_MAX] = { 0 };
541 FILE *outfile = NULL;
542
543 FILE *framestats_file = NULL;
544
545 MD5Context md5_ctx;
546 unsigned char md5_digest[16];
547
548 struct VpxDecInputContext input = { NULL, NULL };
549 struct VpxInputContext vpx_input_ctx;
550 #if CONFIG_WEBM_IO
551 struct WebmInputContext webm_ctx;
552 memset(&(webm_ctx), 0, sizeof(webm_ctx));
553 input.webm_ctx = &webm_ctx;
554 #endif
555 input.vpx_input_ctx = &vpx_input_ctx;
556
557 /* Parse command line */
558 exec_name = argv_[0];
559 argv = argv_dup(argc - 1, argv_ + 1);
560
561 for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
562 memset(&arg, 0, sizeof(arg));
563 arg.argv_step = 1;
564
565 if (arg_match(&arg, &help, argi)) {
566 show_help(stdout, 0);
567 exit(EXIT_SUCCESS);
568 } else if (arg_match(&arg, &codecarg, argi)) {
569 interface = get_vpx_decoder_by_name(arg.val);
570 if (!interface)
571 die("Error: Unrecognized argument (%s) to --codec\n", arg.val);
572 } else if (arg_match(&arg, &looparg, argi)) {
573 // no-op
574 } else if (arg_match(&arg, &outputfile, argi))
575 outfile_pattern = arg.val;
576 else if (arg_match(&arg, &use_yv12, argi)) {
577 use_y4m = 0;
578 flipuv = 1;
579 opt_yv12 = 1;
580 } else if (arg_match(&arg, &use_i420, argi)) {
581 use_y4m = 0;
582 flipuv = 0;
583 opt_i420 = 1;
584 } else if (arg_match(&arg, &rawvideo, argi)) {
585 use_y4m = 0;
586 } else if (arg_match(&arg, &flipuvarg, argi))
587 flipuv = 1;
588 else if (arg_match(&arg, &noblitarg, argi))
589 noblit = 1;
590 else if (arg_match(&arg, &progressarg, argi))
591 progress = 1;
592 else if (arg_match(&arg, &limitarg, argi))
593 stop_after = arg_parse_uint(&arg);
594 else if (arg_match(&arg, &skiparg, argi))
595 arg_skip = arg_parse_uint(&arg);
596 else if (arg_match(&arg, &postprocarg, argi))
597 postproc = 1;
598 else if (arg_match(&arg, &md5arg, argi))
599 do_md5 = 1;
600 else if (arg_match(&arg, &summaryarg, argi))
601 summary = 1;
602 else if (arg_match(&arg, &threadsarg, argi))
603 cfg.threads = arg_parse_uint(&arg);
604 #if CONFIG_VP9_DECODER
605 else if (arg_match(&arg, &frameparallelarg, argi)) {
606 /* ignored for compatibility */
607 }
608 #endif
609 else if (arg_match(&arg, &verbosearg, argi))
610 quiet = 0;
611 else if (arg_match(&arg, &scalearg, argi))
612 do_scale = 1;
613 else if (arg_match(&arg, &fb_arg, argi))
614 num_external_frame_buffers = arg_parse_uint(&arg);
615 else if (arg_match(&arg, &continuearg, argi))
616 keep_going = 1;
617 #if CONFIG_VP9_HIGHBITDEPTH
618 else if (arg_match(&arg, &outbitdeptharg, argi)) {
619 output_bit_depth = arg_parse_uint(&arg);
620 }
621 #endif
622 else if (arg_match(&arg, &svcdecodingarg, argi)) {
623 svc_decoding = 1;
624 svc_spatial_layer = arg_parse_uint(&arg);
625 } else if (arg_match(&arg, &framestatsarg, argi)) {
626 framestats_file = fopen(arg.val, "w");
627 if (!framestats_file) {
628 die("Error: Could not open --framestats file (%s) for writing.\n",
629 arg.val);
630 }
631 }
632 #if CONFIG_VP8_DECODER
633 else if (arg_match(&arg, &addnoise_level, argi)) {
634 postproc = 1;
635 vp8_pp_cfg.post_proc_flag |= VP8_ADDNOISE;
636 vp8_pp_cfg.noise_level = arg_parse_uint(&arg);
637 } else if (arg_match(&arg, &demacroblock_level, argi)) {
638 postproc = 1;
639 vp8_pp_cfg.post_proc_flag |= VP8_DEMACROBLOCK;
640 vp8_pp_cfg.deblocking_level = arg_parse_uint(&arg);
641 } else if (arg_match(&arg, &deblock, argi)) {
642 postproc = 1;
643 vp8_pp_cfg.post_proc_flag |= VP8_DEBLOCK;
644 } else if (arg_match(&arg, &mfqe, argi)) {
645 postproc = 1;
646 vp8_pp_cfg.post_proc_flag |= VP8_MFQE;
647 } else if (arg_match(&arg, &error_concealment, argi)) {
648 ec_enabled = 1;
649 }
650 #endif // CONFIG_VP8_DECODER
651 else
652 argj++;
653 }
654
655 /* Check for unrecognized options */
656 for (argi = argv; *argi; argi++)
657 if (argi[0][0] == '-' && strlen(argi[0]) > 1)
658 die("Error: Unrecognized option %s\n", *argi);
659
660 /* Handle non-option arguments */
661 fn = argv[0];
662
663 if (!fn) {
664 free(argv);
665 fprintf(stderr, "No input file specified!\n");
666 usage_exit();
667 }
668 /* Open file */
669 infile = strcmp(fn, "-") ? fopen(fn, "rb") : set_binary_mode(stdin);
670
671 if (!infile) {
672 fatal("Failed to open input file '%s'", strcmp(fn, "-") ? fn : "stdin");
673 }
674 #if CONFIG_OS_SUPPORT
675 /* Make sure we don't dump to the terminal, unless forced to with -o - */
676 if (!outfile_pattern && isatty(fileno(stdout)) && !do_md5 && !noblit) {
677 fprintf(stderr,
678 "Not dumping raw video to your terminal. Use '-o -' to "
679 "override.\n");
680 return EXIT_FAILURE;
681 }
682 #endif
683 input.vpx_input_ctx->file = infile;
684 if (file_is_ivf(input.vpx_input_ctx))
685 input.vpx_input_ctx->file_type = FILE_TYPE_IVF;
686 #if CONFIG_WEBM_IO
687 else if (file_is_webm(input.webm_ctx, input.vpx_input_ctx))
688 input.vpx_input_ctx->file_type = FILE_TYPE_WEBM;
689 #endif
690 else if (file_is_raw(input.vpx_input_ctx))
691 input.vpx_input_ctx->file_type = FILE_TYPE_RAW;
692 else {
693 fprintf(stderr, "Unrecognized input file type.\n");
694 #if !CONFIG_WEBM_IO
695 fprintf(stderr, "vpxdec was built without WebM container support.\n");
696 #endif
697 return EXIT_FAILURE;
698 }
699
700 outfile_pattern = outfile_pattern ? outfile_pattern : "-";
701 single_file = is_single_file(outfile_pattern);
702
703 if (!noblit && single_file) {
704 generate_filename(outfile_pattern, outfile_name, PATH_MAX,
705 vpx_input_ctx.width, vpx_input_ctx.height, 0);
706 if (do_md5)
707 MD5Init(&md5_ctx);
708 else
709 outfile = open_outfile(outfile_name);
710 }
711
712 if (use_y4m && !noblit) {
713 if (!single_file) {
714 fprintf(stderr,
715 "YUV4MPEG2 not supported with output patterns,"
716 " try --i420 or --yv12 or --rawvideo.\n");
717 return EXIT_FAILURE;
718 }
719
720 #if CONFIG_WEBM_IO
721 if (vpx_input_ctx.file_type == FILE_TYPE_WEBM) {
722 if (webm_guess_framerate(input.webm_ctx, input.vpx_input_ctx)) {
723 fprintf(stderr,
724 "Failed to guess framerate -- error parsing "
725 "webm file?\n");
726 return EXIT_FAILURE;
727 }
728 }
729 #endif
730 }
731
732 fourcc_interface = get_vpx_decoder_by_fourcc(vpx_input_ctx.fourcc);
733 if (interface && fourcc_interface && interface != fourcc_interface)
734 warn("Header indicates codec: %s\n", fourcc_interface->name);
735 else
736 interface = fourcc_interface;
737
738 if (!interface) interface = get_vpx_decoder_by_index(0);
739
740 dec_flags = (postproc ? VPX_CODEC_USE_POSTPROC : 0) |
741 (ec_enabled ? VPX_CODEC_USE_ERROR_CONCEALMENT : 0);
742 if (vpx_codec_dec_init(&decoder, interface->codec_interface(), &cfg,
743 dec_flags)) {
744 fprintf(stderr, "Failed to initialize decoder: %s\n",
745 vpx_codec_error(&decoder));
746 goto fail2;
747 }
748 if (svc_decoding) {
749 if (vpx_codec_control(&decoder, VP9_DECODE_SVC_SPATIAL_LAYER,
750 svc_spatial_layer)) {
751 fprintf(stderr, "Failed to set spatial layer for svc decode: %s\n",
752 vpx_codec_error(&decoder));
753 goto fail;
754 }
755 }
756 if (!quiet) fprintf(stderr, "%s\n", decoder.name);
757
758 #if CONFIG_VP8_DECODER
759 if (vp8_pp_cfg.post_proc_flag &&
760 vpx_codec_control(&decoder, VP8_SET_POSTPROC, &vp8_pp_cfg)) {
761 fprintf(stderr, "Failed to configure postproc: %s\n",
762 vpx_codec_error(&decoder));
763 goto fail;
764 }
765 #endif
766
767 if (arg_skip) fprintf(stderr, "Skipping first %d frames.\n", arg_skip);
768 while (arg_skip) {
769 if (read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) break;
770 arg_skip--;
771 }
772
773 if (num_external_frame_buffers > 0) {
774 ext_fb_list.num_external_frame_buffers = num_external_frame_buffers;
775 ext_fb_list.ext_fb = (struct ExternalFrameBuffer *)calloc(
776 num_external_frame_buffers, sizeof(*ext_fb_list.ext_fb));
777 if (vpx_codec_set_frame_buffer_functions(&decoder, get_vp9_frame_buffer,
778 release_vp9_frame_buffer,
779 &ext_fb_list)) {
780 fprintf(stderr, "Failed to configure external frame buffers: %s\n",
781 vpx_codec_error(&decoder));
782 goto fail;
783 }
784 }
785
786 frame_avail = 1;
787 got_data = 0;
788
789 if (framestats_file) fprintf(framestats_file, "bytes,qp\n");
790
791 /* Decode file */
792 while (frame_avail || got_data) {
793 vpx_codec_iter_t iter = NULL;
794 vpx_image_t *img;
795 struct vpx_usec_timer timer;
796 int corrupted = 0;
797
798 frame_avail = 0;
799 if (!stop_after || frame_in < stop_after) {
800 if (!read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) {
801 frame_avail = 1;
802 frame_in++;
803
804 vpx_usec_timer_start(&timer);
805
806 if (vpx_codec_decode(&decoder, buf, (unsigned int)bytes_in_buffer, NULL,
807 0)) {
808 const char *detail = vpx_codec_error_detail(&decoder);
809 warn("Failed to decode frame %d: %s", frame_in,
810 vpx_codec_error(&decoder));
811 if (detail) warn("Additional information: %s", detail);
812 corrupted = 1;
813 if (!keep_going) goto fail;
814 }
815
816 if (framestats_file) {
817 int qp;
818 if (vpx_codec_control(&decoder, VPXD_GET_LAST_QUANTIZER, &qp)) {
819 warn("Failed VPXD_GET_LAST_QUANTIZER: %s",
820 vpx_codec_error(&decoder));
821 if (!keep_going) goto fail;
822 }
823 fprintf(framestats_file, "%d,%d\n", (int)bytes_in_buffer, qp);
824 }
825
826 vpx_usec_timer_mark(&timer);
827 dx_time += vpx_usec_timer_elapsed(&timer);
828 } else {
829 flush_decoder = 1;
830 }
831 } else {
832 flush_decoder = 1;
833 }
834
835 vpx_usec_timer_start(&timer);
836
837 if (flush_decoder) {
838 // Flush the decoder in frame parallel decode.
839 if (vpx_codec_decode(&decoder, NULL, 0, NULL, 0)) {
840 warn("Failed to flush decoder: %s", vpx_codec_error(&decoder));
841 corrupted = 1;
842 if (!keep_going) goto fail;
843 }
844 }
845
846 got_data = 0;
847 if ((img = vpx_codec_get_frame(&decoder, &iter))) {
848 ++frame_out;
849 got_data = 1;
850 }
851
852 vpx_usec_timer_mark(&timer);
853 dx_time += (unsigned int)vpx_usec_timer_elapsed(&timer);
854
855 if (!corrupted &&
856 vpx_codec_control(&decoder, VP8D_GET_FRAME_CORRUPTED, &corrupted)) {
857 warn("Failed VP8_GET_FRAME_CORRUPTED: %s", vpx_codec_error(&decoder));
858 if (!keep_going) goto fail;
859 }
860 frames_corrupted += corrupted;
861
862 if (progress) show_progress(frame_in, frame_out, dx_time);
863
864 if (!noblit && img) {
865 const int PLANES_YUV[] = { VPX_PLANE_Y, VPX_PLANE_U, VPX_PLANE_V };
866 const int PLANES_YVU[] = { VPX_PLANE_Y, VPX_PLANE_V, VPX_PLANE_U };
867 const int *planes = flipuv ? PLANES_YVU : PLANES_YUV;
868
869 if (do_scale) {
870 if (frame_out == 1) {
871 // If the output frames are to be scaled to a fixed display size then
872 // use the width and height specified in the container. If either of
873 // these is set to 0, use the display size set in the first frame
874 // header. If that is unavailable, use the raw decoded size of the
875 // first decoded frame.
876 int render_width = vpx_input_ctx.width;
877 int render_height = vpx_input_ctx.height;
878 if (!render_width || !render_height) {
879 int render_size[2];
880 if (vpx_codec_control(&decoder, VP9D_GET_DISPLAY_SIZE,
881 render_size)) {
882 // As last resort use size of first frame as display size.
883 render_width = img->d_w;
884 render_height = img->d_h;
885 } else {
886 render_width = render_size[0];
887 render_height = render_size[1];
888 }
889 }
890 scaled_img =
891 vpx_img_alloc(NULL, img->fmt, render_width, render_height, 16);
892 scaled_img->bit_depth = img->bit_depth;
893 }
894
895 if (img->d_w != scaled_img->d_w || img->d_h != scaled_img->d_h) {
896 #if CONFIG_LIBYUV
897 libyuv_scale(img, scaled_img, kFilterBox);
898 img = scaled_img;
899 #else
900 fprintf(stderr,
901 "Failed to scale output frame: %s.\n"
902 "Scaling is disabled in this configuration. "
903 "To enable scaling, configure with --enable-libyuv\n",
904 vpx_codec_error(&decoder));
905 goto fail;
906 #endif
907 }
908 }
909 #if CONFIG_VP9_HIGHBITDEPTH
910 // Default to codec bit depth if output bit depth not set
911 if (!output_bit_depth && single_file && !do_md5) {
912 output_bit_depth = img->bit_depth;
913 }
914 // Shift up or down if necessary
915 if (output_bit_depth != 0 && output_bit_depth != img->bit_depth) {
916 const vpx_img_fmt_t shifted_fmt =
917 output_bit_depth == 8
918 ? img->fmt ^ (img->fmt & VPX_IMG_FMT_HIGHBITDEPTH)
919 : img->fmt | VPX_IMG_FMT_HIGHBITDEPTH;
920 if (img_shifted &&
921 img_shifted_realloc_required(img, img_shifted, shifted_fmt)) {
922 vpx_img_free(img_shifted);
923 img_shifted = NULL;
924 }
925 if (!img_shifted) {
926 img_shifted =
927 vpx_img_alloc(NULL, shifted_fmt, img->d_w, img->d_h, 16);
928 img_shifted->bit_depth = output_bit_depth;
929 }
930 if (output_bit_depth > img->bit_depth) {
931 vpx_img_upshift(img_shifted, img, output_bit_depth - img->bit_depth);
932 } else {
933 vpx_img_downshift(img_shifted, img,
934 img->bit_depth - output_bit_depth);
935 }
936 img = img_shifted;
937 }
938 #endif
939
940 if (single_file) {
941 if (use_y4m) {
942 char buf[Y4M_BUFFER_SIZE] = { 0 };
943 size_t len = 0;
944 if (img->fmt == VPX_IMG_FMT_I440 || img->fmt == VPX_IMG_FMT_I44016) {
945 fprintf(stderr, "Cannot produce y4m output for 440 sampling.\n");
946 goto fail;
947 }
948 if (frame_out == 1) {
949 // Y4M file header
950 len = y4m_write_file_header(
951 buf, sizeof(buf), vpx_input_ctx.width, vpx_input_ctx.height,
952 &vpx_input_ctx.framerate, img->fmt, img->bit_depth);
953 if (do_md5) {
954 MD5Update(&md5_ctx, (md5byte *)buf, (unsigned int)len);
955 } else {
956 fputs(buf, outfile);
957 }
958 }
959
960 // Y4M frame header
961 len = y4m_write_frame_header(buf, sizeof(buf));
962 if (do_md5) {
963 MD5Update(&md5_ctx, (md5byte *)buf, (unsigned int)len);
964 } else {
965 fputs(buf, outfile);
966 }
967 } else {
968 if (frame_out == 1) {
969 // Check if --yv12 or --i420 options are consistent with the
970 // bit-stream decoded
971 if (opt_i420) {
972 if (img->fmt != VPX_IMG_FMT_I420 &&
973 img->fmt != VPX_IMG_FMT_I42016) {
974 fprintf(stderr, "Cannot produce i420 output for bit-stream.\n");
975 goto fail;
976 }
977 }
978 if (opt_yv12) {
979 if ((img->fmt != VPX_IMG_FMT_I420 &&
980 img->fmt != VPX_IMG_FMT_YV12) ||
981 img->bit_depth != 8) {
982 fprintf(stderr, "Cannot produce yv12 output for bit-stream.\n");
983 goto fail;
984 }
985 }
986 }
987 }
988
989 if (do_md5) {
990 update_image_md5(img, planes, &md5_ctx);
991 } else {
992 if (!corrupted) write_image_file(img, planes, outfile);
993 }
994 } else {
995 generate_filename(outfile_pattern, outfile_name, PATH_MAX, img->d_w,
996 img->d_h, frame_in);
997 if (do_md5) {
998 MD5Init(&md5_ctx);
999 update_image_md5(img, planes, &md5_ctx);
1000 MD5Final(md5_digest, &md5_ctx);
1001 print_md5(md5_digest, outfile_name);
1002 } else {
1003 outfile = open_outfile(outfile_name);
1004 write_image_file(img, planes, outfile);
1005 fclose(outfile);
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 (vpx_codec_destroy(&decoder)) {
1025 fprintf(stderr, "Failed to destroy decoder: %s\n",
1026 vpx_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.vpx_input_ctx->file_type == FILE_TYPE_WEBM)
1042 webm_free(input.webm_ctx);
1043 #endif
1044
1045 if (input.vpx_input_ctx->file_type != FILE_TYPE_WEBM) free(buf);
1046
1047 if (scaled_img) vpx_img_free(scaled_img);
1048 #if CONFIG_VP9_HIGHBITDEPTH
1049 if (img_shifted) vpx_img_free(img_shifted);
1050 #endif
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
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 for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
1073 memset(&arg, 0, sizeof(arg));
1074 arg.argv_step = 1;
1075
1076 if (arg_match(&arg, &looparg, argi)) {
1077 loops = arg_parse_uint(&arg);
1078 break;
1079 }
1080 }
1081 free(argv);
1082 for (i = 0; !error && i < loops; i++) error = main_loop(argc, argv_);
1083 return error;
1084 }
VPX_IMG_FMT_I44016
Definition: vpx_image.h:66
vpx_image
Image Descriptor.
Definition: vpx_image.h:88
vpx_decoder.h
Describes the decoder algorithm interface to applications.
vpx_codec_iface_name
const char * vpx_codec_iface_name(vpx_codec_iface_t *iface)
Return the name for a given interface.
VPX_IMG_FMT_YV12
Definition: vpx_image.h:53
vpx_codec_dec_cfg::threads
unsigned int threads
Definition: vpx_decoder.h:108
vpx_codec_stream_info::sz
unsigned int sz
Definition: vpx_decoder.h:90
vpx_codec_stream_info
Stream properties.
Definition: vpx_decoder.h:89
VP9D_GET_DISPLAY_SIZE
Definition: vp8dx.h:85
vp8_postproc_cfg::noise_level
int noise_level
Definition: vp8.h:93
vpx_image::bit_depth
unsigned int bit_depth
Definition: vpx_image.h:96
vp8dx.h
Provides definitions for using VP8 or VP9 within the vpx Decoder interface.
vpx_codec_peek_stream_info
vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t *iface, const uint8_t *data, unsigned int data_sz, vpx_codec_stream_info_t *si)
Parse stream info from a buffer.
VPX_PLANE_Y
#define VPX_PLANE_Y
Definition: vpx_image.h:112
vpx_codec_frame_buffer::data
uint8_t * data
Definition: vpx_frame_buffer.h:40
vpx_codec_ctx::name
const char * name
Definition: vpx_codec.h:198
VPX_PLANE_V
#define VPX_PLANE_V
Definition: vpx_image.h:114
VPXD_GET_LAST_QUANTIZER
Codec control function to get last decoded frame quantizer.
Definition: vp8dx.h:125
VPX_IMG_FMT_HIGHBITDEPTH
#define VPX_IMG_FMT_HIGHBITDEPTH
Definition: vpx_image.h:35
VP9_DECODE_SVC_SPATIAL_LAYER
Definition: vp8dx.h:117
VPX_CODEC_USE_ERROR_CONCEALMENT
#define VPX_CODEC_USE_ERROR_CONCEALMENT
Conceal errors in decoded frames.
Definition: vpx_decoder.h:76
vpx_img_alloc
vpx_image_t * vpx_img_alloc(vpx_image_t *img, vpx_img_fmt_t fmt, unsigned int d_w, unsigned int d_h, unsigned int align)
Open a descriptor, allocating storage for the underlying image.
VPX_IMG_FMT_I420
Definition: vpx_image.h:55
vpx_image::d_w
unsigned int d_w
Definition: vpx_image.h:99
vpx_codec_dec_init
#define vpx_codec_dec_init(ctx, iface, cfg, flags)
Convenience macro for vpx_codec_dec_init_ver()
Definition: vpx_decoder.h:144
vpx_codec_decode
vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t *ctx, const uint8_t *data, unsigned int data_sz, void *user_priv, long deadline)
Decode data.
vpx_img_fmt_t
enum vpx_img_fmt vpx_img_fmt_t
List of supported image formats.
vpx_codec_frame_buffer::size
size_t size
Definition: vpx_frame_buffer.h:41
vpx_image::stride
int stride[4]
Definition: vpx_image.h:117
vpx_img_free
void vpx_img_free(vpx_image_t *img)
Close an image descriptor.
vpx_image::fmt
vpx_img_fmt_t fmt
Definition: vpx_image.h:89
vpx_image::planes
unsigned char * planes[4]
Definition: vpx_image.h:116
VP8_SET_POSTPROC
Definition: vp8.h:49
VPX_CODEC_USE_POSTPROC
#define VPX_CODEC_USE_POSTPROC
Definition: vpx_decoder.h:74
VP8D_GET_FRAME_CORRUPTED
Definition: vp8dx.h:63
vpx_codec_error_detail
const char * vpx_codec_error_detail(vpx_codec_ctx_t *ctx)
Retrieve detailed error information for codec context.
vpx_codec_frame_buffer::priv
void * priv
Definition: vpx_frame_buffer.h:42
VPX_PLANE_U
#define VPX_PLANE_U
Definition: vpx_image.h:113
vp8_postproc_cfg::deblocking_level
int deblocking_level
Definition: vp8.h:92
vpx_codec_stream_info::w
unsigned int w
Definition: vpx_decoder.h:91
VPX_IMG_FMT_I42016
Definition: vpx_image.h:63
vpx_codec_frame_buffer
External frame buffer.
Definition: vpx_frame_buffer.h:39
vpx_codec_control
#define vpx_codec_control(ctx, id, data)
vpx_codec_control wrapper macro
Definition: vpx_codec.h:404
vpx_codec_destroy
vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx)
Destroy a codec instance.
vpx_image::d_h
unsigned int d_h
Definition: vpx_image.h:100
vp8_postproc_cfg
post process flags
Definition: vp8.h:88
vpx_codec_set_frame_buffer_functions
vpx_codec_err_t vpx_codec_set_frame_buffer_functions(vpx_codec_ctx_t *ctx, vpx_get_frame_buffer_cb_fn_t cb_get, vpx_release_frame_buffer_cb_fn_t cb_release, void *cb_priv)
Pass in external frame buffers for the decoder to use.
vpx_codec_stream_info::h
unsigned int h
Definition: vpx_decoder.h:92
vpx_codec_error
const char * vpx_codec_error(vpx_codec_ctx_t *ctx)
Retrieve error synopsis for codec context.
vpx_codec_dec_cfg
Initialization Configurations.
Definition: vpx_decoder.h:107
VPX_IMG_FMT_I440
Definition: vpx_image.h:61
vpx_codec_iter_t
const void * vpx_codec_iter_t
Iterator.
Definition: vpx_codec.h:187
vpx_codec_get_frame
vpx_image_t * vpx_codec_get_frame(vpx_codec_ctx_t *ctx, vpx_codec_iter_t *iter)
Decoded frames iterator.
vp8_postproc_cfg::post_proc_flag
int post_proc_flag
the types of post processing to be done, should be combination of "vp8_postproc_level" ...
Definition: vp8.h:91
vpx_codec_ctx
Codec context structure.
Definition: vpx_codec.h:197