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
43static const char *exec_name;
44
45struct VpxDecInputContext {
46 struct VpxInputContext *vpx_input_ctx;
47 struct WebmInputContext *webm_ctx;
48};
49
50static const arg_def_t help =
51 ARG_DEF(NULL, "help", 0, "Show usage options and exit");
52static const arg_def_t looparg =
53 ARG_DEF(NULL, "loops", 1, "Number of times to decode the file");
54static const arg_def_t codecarg = ARG_DEF(NULL, "codec", 1, "Codec to use");
55static const arg_def_t use_yv12 =
56 ARG_DEF(NULL, "yv12", 0, "Output raw YV12 frames");
57static const arg_def_t use_i420 =
58 ARG_DEF(NULL, "i420", 0, "Output raw I420 frames");
59static const arg_def_t flipuvarg =
60 ARG_DEF(NULL, "flipuv", 0, "Flip the chroma planes in the output");
61static const arg_def_t rawvideo =
62 ARG_DEF(NULL, "rawvideo", 0, "Output raw YUV frames");
63static const arg_def_t noblitarg =
64 ARG_DEF(NULL, "noblit", 0, "Don't process the decoded frames");
65static const arg_def_t progressarg =
66 ARG_DEF(NULL, "progress", 0, "Show progress after each frame decodes");
67static const arg_def_t limitarg =
68 ARG_DEF(NULL, "limit", 1, "Stop decoding after n frames");
69static const arg_def_t skiparg =
70 ARG_DEF(NULL, "skip", 1, "Skip the first n input frames");
71static const arg_def_t postprocarg =
72 ARG_DEF(NULL, "postproc", 0, "Postprocess decoded frames");
73static const arg_def_t summaryarg =
74 ARG_DEF(NULL, "summary", 0, "Show timing summary");
75static const arg_def_t outputfile =
76 ARG_DEF("o", "output", 1, "Output file name pattern (see below)");
77static const arg_def_t threadsarg =
78 ARG_DEF("t", "threads", 1, "Max threads to use");
79static const arg_def_t frameparallelarg =
80 ARG_DEF(NULL, "frame-parallel", 0, "Frame parallel decode (ignored)");
81static const arg_def_t verbosearg =
82 ARG_DEF("v", "verbose", 0, "Show version string");
83static const arg_def_t error_concealment =
84 ARG_DEF(NULL, "error-concealment", 0, "Enable decoder error-concealment");
85static const arg_def_t scalearg =
86 ARG_DEF("S", "scale", 0, "Scale output frames uniformly");
87static const arg_def_t continuearg =
88 ARG_DEF("k", "keep-going", 0, "(debug) Continue decoding after error");
89static const arg_def_t fb_arg =
90 ARG_DEF(NULL, "frame-buffers", 1, "Number of frame buffers to use");
91static const arg_def_t md5arg =
92 ARG_DEF(NULL, "md5", 0, "Compute the MD5 sum of the decoded frame");
93#if CONFIG_VP9_HIGHBITDEPTH
94static const arg_def_t outbitdeptharg =
95 ARG_DEF(NULL, "output-bit-depth", 1, "Output bit-depth for decoded frames");
96#endif
97static const arg_def_t svcdecodingarg = ARG_DEF(
98 NULL, "svc-decode-layer", 1, "Decode SVC stream up to given spatial layer");
99static const arg_def_t framestatsarg =
100 ARG_DEF(NULL, "framestats", 1, "Output per-frame stats (.csv format)");
101static const arg_def_t rowmtarg =
102 ARG_DEF(NULL, "row-mt", 1, "Enable multi-threading to run row-wise in VP9");
103static const arg_def_t lpfoptarg =
104 ARG_DEF(NULL, "lpf-opt", 1,
105 "Do loopfilter without waiting for all threads to sync.");
106
107static 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
138static const arg_def_t addnoise_level =
139 ARG_DEF(NULL, "noise-level", 1, "Enable VP8 postproc add noise");
140static const arg_def_t deblock =
141 ARG_DEF(NULL, "deblock", 0, "Enable VP8 deblocking");
142static const arg_def_t demacroblock_level = ARG_DEF(
143 NULL, "demacroblock-level", 1, "Enable VP8 demacroblocking, w/ level");
144static const arg_def_t mfqe =
145 ARG_DEF(NULL, "mfqe", 0, "Enable multiframe quality enhancement");
146
147static const arg_def_t *vp8_pp_args[] = { &addnoise_level, &deblock,
148 &demacroblock_level, &mfqe, NULL };
149#endif
150
151#if CONFIG_LIBYUV
152static 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
178static 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
217void usage_exit(void) {
218 show_help(stderr, 1);
219 exit(EXIT_FAILURE);
220}
221
222static 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
268static 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
285static 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
304static 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
327static 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
358static 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
365struct ExternalFrameBuffer {
366 uint8_t *data;
367 size_t size;
368 int in_use;
369};
370
371struct 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.
380static 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.
414static 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
423static 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
477static 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
490static 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
497static 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
509static 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
517static 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
1063fail:
1064
1065 if (vpx_codec_destroy(&decoder)) {
1066 fprintf(stderr, "Failed to destroy decoder: %s\n",
1067 vpx_codec_error(&decoder));
1068 }
1069
1070fail2:
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
1106int 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}
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_error_detail
const char * vpx_codec_error_detail(vpx_codec_ctx_t *ctx)
Retrieve detailed error information for codec context.
vpx_codec_destroy
vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx)
Destroy a codec instance.
vpx_codec_iter_t
const void * vpx_codec_iter_t
Iterator.
Definition: vpx_codec.h:190
vpx_codec_iface_name
const char * vpx_codec_iface_name(vpx_codec_iface_t *iface)
Return the name for a given interface.
vpx_codec_control
#define vpx_codec_control(ctx, id, data)
vpx_codec_control wrapper macro
Definition: vpx_codec.h:407
vpx_codec_error
const char * vpx_codec_error(vpx_codec_ctx_t *ctx)
Retrieve error synopsis for codec context.
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_CODEC_USE_ERROR_CONCEALMENT
#define VPX_CODEC_USE_ERROR_CONCEALMENT
Conceal errors in decoded frames.
Definition: vpx_decoder.h:75
VPX_CODEC_USE_POSTPROC
#define VPX_CODEC_USE_POSTPROC
Initialization-time Feature Enabling.
Definition: vpx_decoder.h:73
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:143
vpx_codec_get_frame
vpx_image_t * vpx_codec_get_frame(vpx_codec_ctx_t *ctx, vpx_codec_iter_t *iter)
Decoded frames iterator.
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.
VP9D_SET_ROW_MT
@ VP9D_SET_ROW_MT
Codec control function to set row level multi-threading.
Definition: vp8dx.h:133
VP9D_SET_LOOP_FILTER_OPT
@ VP9D_SET_LOOP_FILTER_OPT
Codec control function to set loopfilter optimization.
Definition: vp8dx.h:143
VPXD_GET_LAST_QUANTIZER
@ VPXD_GET_LAST_QUANTIZER
Codec control function to get last decoded frame quantizer.
Definition: vp8dx.h:125
VP9_DECODE_SVC_SPATIAL_LAYER
@ VP9_DECODE_SVC_SPATIAL_LAYER
Definition: vp8dx.h:117
VP9D_GET_DISPLAY_SIZE
@ VP9D_GET_DISPLAY_SIZE
Definition: vp8dx.h:85
VP8D_GET_FRAME_CORRUPTED
@ VP8D_GET_FRAME_CORRUPTED
Definition: vp8dx.h:63
VP8_SET_POSTPROC
@ VP8_SET_POSTPROC
Definition: vp8.h:49
vp8_postproc_cfg
post process flags
Definition: vp8.h:79
vp8_postproc_cfg::noise_level
int noise_level
Definition: vp8.h:84
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:82
vp8_postproc_cfg::deblocking_level
int deblocking_level
Definition: vp8.h:83
vpx_codec_ctx
Codec context structure.
Definition: vpx_codec.h:200
vpx_codec_ctx::name
const char * name
Definition: vpx_codec.h:201
vpx_codec_dec_cfg
Initialization Configurations.
Definition: vpx_decoder.h:106
vpx_codec_dec_cfg::threads
unsigned int threads
Definition: vpx_decoder.h:107
vpx_codec_frame_buffer
External frame buffer.
Definition: vpx_frame_buffer.h:39
vpx_codec_frame_buffer::priv
void * priv
Definition: vpx_frame_buffer.h:42
vpx_codec_frame_buffer::size
size_t size
Definition: vpx_frame_buffer.h:41
vpx_codec_frame_buffer::data
uint8_t * data
Definition: vpx_frame_buffer.h:40
vpx_codec_stream_info
Stream properties.
Definition: vpx_decoder.h:88
vpx_codec_stream_info::sz
unsigned int sz
Definition: vpx_decoder.h:89
vpx_codec_stream_info::w
unsigned int w
Definition: vpx_decoder.h:90
vpx_codec_stream_info::h
unsigned int h
Definition: vpx_decoder.h:91
vpx_image
Image Descriptor.
Definition: vpx_image.h:72
vpx_image::fmt
vpx_img_fmt_t fmt
Definition: vpx_image.h:73
vpx_image::d_h
unsigned int d_h
Definition: vpx_image.h:84
vpx_image::d_w
unsigned int d_w
Definition: vpx_image.h:83
vpx_image::bit_depth
unsigned int bit_depth
Definition: vpx_image.h:80
vpx_image::planes
unsigned char * planes[4]
Definition: vpx_image.h:100
vpx_image::stride
int stride[4]
Definition: vpx_image.h:101
vp8dx.h
Provides definitions for using VP8 or VP9 within the vpx Decoder interface.
vpx_decoder.h
Describes the decoder algorithm interface to applications.
VPX_PLANE_Y
#define VPX_PLANE_Y
Definition: vpx_image.h:96
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_HIGHBITDEPTH
#define VPX_IMG_FMT_HIGHBITDEPTH
Definition: vpx_image.h:35
VPX_PLANE_U
#define VPX_PLANE_U
Definition: vpx_image.h:97
VPX_IMG_FMT_I44016
@ VPX_IMG_FMT_I44016
Definition: vpx_image.h:50
VPX_IMG_FMT_YV12
@ VPX_IMG_FMT_YV12
Definition: vpx_image.h:40
VPX_IMG_FMT_I42016
@ VPX_IMG_FMT_I42016
Definition: vpx_image.h:47
VPX_IMG_FMT_I440
@ VPX_IMG_FMT_I440
Definition: vpx_image.h:45
VPX_IMG_FMT_I420
@ VPX_IMG_FMT_I420
Definition: vpx_image.h:42
VPX_PLANE_V
#define VPX_PLANE_V
Definition: vpx_image.h:98
vpx_img_fmt_t
enum vpx_img_fmt vpx_img_fmt_t
List of supported image formats.
vpx_img_free
void vpx_img_free(vpx_image_t *img)
Close an image descriptor.