WebM Codec SDK

vp9_spatial_svc_encoder
1/*
2 * Copyright (c) 2012 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/*
12 * This is an example demonstrating how to implement a multi-layer
13 * VP9 encoding scheme based on spatial scalability for video applications
14 * that benefit from a scalable bitstream.
15 */
16
17#include <assert.h>
18#include <limits.h>
19#include <math.h>
20#include <stdarg.h>
21#include <stdio.h>
22#include <stdlib.h>
23#include <string.h>
24#include <time.h>
25
26#include "../args.h"
27#include "../tools_common.h"
28#include "../video_writer.h"
29
30#include "../vpx_ports/bitops.h"
31#include "../vpx_ports/vpx_timer.h"
32#include "./svc_context.h"
33#include "vpx/vp8cx.h"
34#include "vpx/vpx_decoder.h"
35#include "vpx/vpx_encoder.h"
36#include "../vpxstats.h"
37#include "./y4minput.h"
38
39#define OUTPUT_FRAME_STATS 0
40#define OUTPUT_RC_STATS 1
41
42#define SIMULCAST_MODE 0
43
44 static const arg_def_t outputfile =
45 ARG_DEF("o", "output", 1, "Output filename");
46 static const arg_def_t skip_frames_arg =
47 ARG_DEF("s", "skip-frames", 1, "input frames to skip");
48 static const arg_def_t frames_arg =
49 ARG_DEF("f", "frames", 1, "number of frames to encode");
50 static const arg_def_t threads_arg =
51 ARG_DEF("th", "threads", 1, "number of threads to use");
52#if OUTPUT_RC_STATS
53 static const arg_def_t output_rc_stats_arg =
54 ARG_DEF("rcstat", "output_rc_stats", 1, "output rc stats");
55#endif
56 static const arg_def_t width_arg = ARG_DEF("w", "width", 1, "source width");
57 static const arg_def_t height_arg = ARG_DEF("h", "height", 1, "source height");
58 static const arg_def_t timebase_arg =
59 ARG_DEF("t", "timebase", 1, "timebase (num/den)");
60 static const arg_def_t bitrate_arg = ARG_DEF(
61 "b", "target-bitrate", 1, "encoding bitrate, in kilobits per second");
62 static const arg_def_t spatial_layers_arg =
63 ARG_DEF("sl", "spatial-layers", 1, "number of spatial SVC layers");
64 static const arg_def_t temporal_layers_arg =
65 ARG_DEF("tl", "temporal-layers", 1, "number of temporal SVC layers");
66 static const arg_def_t temporal_layering_mode_arg =
67 ARG_DEF("tlm", "temporal-layering-mode", 1,
68 "temporal layering scheme."
69 "VP9E_TEMPORAL_LAYERING_MODE");
70 static const arg_def_t kf_dist_arg =
71 ARG_DEF("k", "kf-dist", 1, "number of frames between keyframes");
72 static const arg_def_t scale_factors_arg =
73 ARG_DEF("r", "scale-factors", 1, "scale factors (lowest to highest layer)");
74 static const arg_def_t min_q_arg =
75 ARG_DEF(NULL, "min-q", 1, "Minimum quantizer");
76 static const arg_def_t max_q_arg =
77 ARG_DEF(NULL, "max-q", 1, "Maximum quantizer");
78 static const arg_def_t min_bitrate_arg =
79 ARG_DEF(NULL, "min-bitrate", 1, "Minimum bitrate");
80 static const arg_def_t max_bitrate_arg =
81 ARG_DEF(NULL, "max-bitrate", 1, "Maximum bitrate");
82 static const arg_def_t lag_in_frame_arg =
83 ARG_DEF(NULL, "lag-in-frames", 1,
84 "Number of frame to input before "
85 "generating any outputs");
86 static const arg_def_t rc_end_usage_arg =
87 ARG_DEF(NULL, "rc-end-usage", 1, "0 - 3: VBR, CBR, CQ, Q");
88 static const arg_def_t speed_arg =
89 ARG_DEF("sp", "speed", 1, "speed configuration");
90 static const arg_def_t aqmode_arg =
91 ARG_DEF("aq", "aqmode", 1, "aq-mode off/on");
92 static const arg_def_t bitrates_arg =
93 ARG_DEF("bl", "bitrates", 1, "bitrates[sl * num_tl + tl]");
94 static const arg_def_t dropframe_thresh_arg =
95 ARG_DEF(NULL, "drop-frame", 1, "Temporal resampling threshold (buf %)");
96 static const arg_def_t psnr_arg =
97 ARG_DEF(NULL, "psnr", 1, "Enable PSNR computation and statistics");
98 static const struct arg_enum_list tune_content_enum[] = {
99 { "default", VP9E_CONTENT_DEFAULT },
100 { "screen", VP9E_CONTENT_SCREEN },
101 { "film", VP9E_CONTENT_FILM },
102 { NULL, 0 }
103};
104
105 static const arg_def_t tune_content_arg = ARG_DEF_ENUM(
106 NULL, "tune-content", 1, "Tune content type", tune_content_enum);
107 static const arg_def_t inter_layer_pred_arg = ARG_DEF(
108 NULL, "inter-layer-pred", 1, "0 - 3: On, Off, Key-frames, Constrained");
109
110#if CONFIG_VP9_HIGHBITDEPTH
111 static const struct arg_enum_list bitdepth_enum[] = {
112 { "8", VPX_BITS_8 }, { "10", VPX_BITS_10 }, { "12", VPX_BITS_12 }, { NULL, 0 }
113};
114
115 static const arg_def_t bitdepth_arg = ARG_DEF_ENUM(
116 "d", "bit-depth", 1, "Bit depth for codec 8, 10 or 12. ", bitdepth_enum);
117#endif // CONFIG_VP9_HIGHBITDEPTH
118
119 static const arg_def_t *svc_args[] = { &frames_arg,
120 &outputfile,
121 &width_arg,
122 &height_arg,
123 &timebase_arg,
124 &bitrate_arg,
125 &skip_frames_arg,
126 &spatial_layers_arg,
127 &kf_dist_arg,
128 &scale_factors_arg,
129 &min_q_arg,
130 &max_q_arg,
131 &min_bitrate_arg,
132 &max_bitrate_arg,
133 &temporal_layers_arg,
134 &temporal_layering_mode_arg,
135 &lag_in_frame_arg,
136 &threads_arg,
137 &aqmode_arg,
138#if OUTPUT_RC_STATS
139 &output_rc_stats_arg,
140#endif
141
142#if CONFIG_VP9_HIGHBITDEPTH
143 &bitdepth_arg,
144#endif
145 &speed_arg,
146 &rc_end_usage_arg,
147 &bitrates_arg,
148 &dropframe_thresh_arg,
149 &tune_content_arg,
150 &inter_layer_pred_arg,
151 &psnr_arg,
152 NULL };
153
154 static const uint32_t default_frames_to_skip = 0;
155 static const uint32_t default_frames_to_code = 60 * 60;
156 static const uint32_t default_width = 1920;
157 static const uint32_t default_height = 1080;
158 static const uint32_t default_timebase_num = 1;
159 static const uint32_t default_timebase_den = 60;
160 static const uint32_t default_bitrate = 1000;
161 static const uint32_t default_spatial_layers = 5;
162 static const uint32_t default_temporal_layers = 1;
163 static const uint32_t default_kf_dist = 100;
164 static const uint32_t default_temporal_layering_mode = 0;
165 static const uint32_t default_output_rc_stats = 0;
166 static const int32_t default_speed = -1; // -1 means use library default.
167 static const uint32_t default_threads = 0; // zero means use library default.
168
169 typedef struct {
170 const char *output_filename;
171 uint32_t frames_to_code;
172 uint32_t frames_to_skip;
173 struct VpxInputContext input_ctx;
174 stats_io_t rc_stats;
175 int tune_content;
176 int inter_layer_pred;
177} AppInput;
178
179 static const char *exec_name;
180
181 void usage_exit(void) {
182 fprintf(stderr, "Usage: %s <options> input_filename -o output_filename\n",
183 exec_name);
184 fprintf(stderr, "Options:\n");
185 arg_show_usage(stderr, svc_args);
186 exit(EXIT_FAILURE);
187}
188
189 static void parse_command_line(int argc, const char **argv_,
190 AppInput *app_input, SvcContext *svc_ctx,
191 vpx_codec_enc_cfg_t *enc_cfg) {
192 struct arg arg;
193 char **argv = NULL;
194 char **argi = NULL;
195 char **argj = NULL;
196 vpx_codec_err_t res;
197 unsigned int min_bitrate = 0;
198 unsigned int max_bitrate = 0;
199 char string_options[1024] = { 0 };
200
201 // initialize SvcContext with parameters that will be passed to vpx_svc_init
202 svc_ctx->log_level = SVC_LOG_DEBUG;
203 svc_ctx->spatial_layers = default_spatial_layers;
204 svc_ctx->temporal_layers = default_temporal_layers;
205 svc_ctx->temporal_layering_mode = default_temporal_layering_mode;
206#if OUTPUT_RC_STATS
207 svc_ctx->output_rc_stat = default_output_rc_stats;
208#endif
209 svc_ctx->speed = default_speed;
210 svc_ctx->threads = default_threads;
211 svc_ctx->use_psnr = 0;
212
213 // start with default encoder configuration
214 res = vpx_codec_enc_config_default(vpx_codec_vp9_cx(), enc_cfg, 0);
215 if (res) {
216 die("Failed to get config: %s\n", vpx_codec_err_to_string(res));
217 }
218 // update enc_cfg with app default values
219 enc_cfg->g_w = default_width;
220 enc_cfg->g_h = default_height;
221 enc_cfg->g_timebase.num = default_timebase_num;
222 enc_cfg->g_timebase.den = default_timebase_den;
223 enc_cfg->rc_target_bitrate = default_bitrate;
224 enc_cfg->kf_min_dist = default_kf_dist;
225 enc_cfg->kf_max_dist = default_kf_dist;
226 enc_cfg->rc_end_usage = VPX_CQ;
227
228 // initialize AppInput with default values
229 app_input->frames_to_code = default_frames_to_code;
230 app_input->frames_to_skip = default_frames_to_skip;
231
232 // process command line options
233 argv = argv_dup(argc - 1, argv_ + 1);
234 if (!argv) {
235 fprintf(stderr, "Error allocating argument list\n");
236 exit(EXIT_FAILURE);
237 }
238 for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
239 arg.argv_step = 1;
240
241 if (arg_match(&arg, &frames_arg, argi)) {
242 app_input->frames_to_code = arg_parse_uint(&arg);
243 } else if (arg_match(&arg, &outputfile, argi)) {
244 app_input->output_filename = arg.val;
245 } else if (arg_match(&arg, &width_arg, argi)) {
246 enc_cfg->g_w = arg_parse_uint(&arg);
247 } else if (arg_match(&arg, &height_arg, argi)) {
248 enc_cfg->g_h = arg_parse_uint(&arg);
249 } else if (arg_match(&arg, &timebase_arg, argi)) {
250 enc_cfg->g_timebase = arg_parse_rational(&arg);
251 } else if (arg_match(&arg, &bitrate_arg, argi)) {
252 enc_cfg->rc_target_bitrate = arg_parse_uint(&arg);
253 } else if (arg_match(&arg, &skip_frames_arg, argi)) {
254 app_input->frames_to_skip = arg_parse_uint(&arg);
255 } else if (arg_match(&arg, &spatial_layers_arg, argi)) {
256 svc_ctx->spatial_layers = arg_parse_uint(&arg);
257 } else if (arg_match(&arg, &temporal_layers_arg, argi)) {
258 svc_ctx->temporal_layers = arg_parse_uint(&arg);
259#if OUTPUT_RC_STATS
260 } else if (arg_match(&arg, &output_rc_stats_arg, argi)) {
261 svc_ctx->output_rc_stat = arg_parse_uint(&arg);
262#endif
263 } else if (arg_match(&arg, &speed_arg, argi)) {
264 svc_ctx->speed = arg_parse_uint(&arg);
265 if (svc_ctx->speed > 9) {
266 warn("Mapping speed %d to speed 9.\n", svc_ctx->speed);
267 }
268 } else if (arg_match(&arg, &aqmode_arg, argi)) {
269 svc_ctx->aqmode = arg_parse_uint(&arg);
270 } else if (arg_match(&arg, &threads_arg, argi)) {
271 svc_ctx->threads = arg_parse_uint(&arg);
272 } else if (arg_match(&arg, &temporal_layering_mode_arg, argi)) {
273 svc_ctx->temporal_layering_mode = enc_cfg->temporal_layering_mode =
274 arg_parse_int(&arg);
275 if (svc_ctx->temporal_layering_mode) {
276 enc_cfg->g_error_resilient = 1;
277 }
278 } else if (arg_match(&arg, &kf_dist_arg, argi)) {
279 enc_cfg->kf_min_dist = arg_parse_uint(&arg);
280 enc_cfg->kf_max_dist = enc_cfg->kf_min_dist;
281 } else if (arg_match(&arg, &scale_factors_arg, argi)) {
282 strncat(string_options, " scale-factors=",
283 sizeof(string_options) - strlen(string_options) - 1);
284 strncat(string_options, arg.val,
285 sizeof(string_options) - strlen(string_options) - 1);
286 } else if (arg_match(&arg, &bitrates_arg, argi)) {
287 strncat(string_options, " bitrates=",
288 sizeof(string_options) - strlen(string_options) - 1);
289 strncat(string_options, arg.val,
290 sizeof(string_options) - strlen(string_options) - 1);
291 } else if (arg_match(&arg, &min_q_arg, argi)) {
292 strncat(string_options, " min-quantizers=",
293 sizeof(string_options) - strlen(string_options) - 1);
294 strncat(string_options, arg.val,
295 sizeof(string_options) - strlen(string_options) - 1);
296 } else if (arg_match(&arg, &max_q_arg, argi)) {
297 strncat(string_options, " max-quantizers=",
298 sizeof(string_options) - strlen(string_options) - 1);
299 strncat(string_options, arg.val,
300 sizeof(string_options) - strlen(string_options) - 1);
301 } else if (arg_match(&arg, &min_bitrate_arg, argi)) {
302 min_bitrate = arg_parse_uint(&arg);
303 } else if (arg_match(&arg, &max_bitrate_arg, argi)) {
304 max_bitrate = arg_parse_uint(&arg);
305 } else if (arg_match(&arg, &lag_in_frame_arg, argi)) {
306 enc_cfg->g_lag_in_frames = arg_parse_uint(&arg);
307 } else if (arg_match(&arg, &rc_end_usage_arg, argi)) {
308 enc_cfg->rc_end_usage = arg_parse_uint(&arg);
309#if CONFIG_VP9_HIGHBITDEPTH
310 } else if (arg_match(&arg, &bitdepth_arg, argi)) {
311 enc_cfg->g_bit_depth = arg_parse_enum_or_int(&arg);
312 switch (enc_cfg->g_bit_depth) {
313 case VPX_BITS_8:
314 enc_cfg->g_input_bit_depth = 8;
315 enc_cfg->g_profile = 0;
316 break;
317 case VPX_BITS_10:
318 enc_cfg->g_input_bit_depth = 10;
319 enc_cfg->g_profile = 2;
320 break;
321 case VPX_BITS_12:
322 enc_cfg->g_input_bit_depth = 12;
323 enc_cfg->g_profile = 2;
324 break;
325 default:
326 die("Error: Invalid bit depth selected (%d)\n", enc_cfg->g_bit_depth);
327 }
328#endif // CONFIG_VP9_HIGHBITDEPTH
329 } else if (arg_match(&arg, &dropframe_thresh_arg, argi)) {
330 enc_cfg->rc_dropframe_thresh = arg_parse_uint(&arg);
331 } else if (arg_match(&arg, &tune_content_arg, argi)) {
332 app_input->tune_content = arg_parse_uint(&arg);
333 } else if (arg_match(&arg, &inter_layer_pred_arg, argi)) {
334 app_input->inter_layer_pred = arg_parse_uint(&arg);
335 } else if (arg_match(&arg, &psnr_arg, argi)) {
336 svc_ctx->use_psnr = arg_parse_uint(&arg);
337 } else {
338 ++argj;
339 }
340 }
341
342 // There will be a space in front of the string options
343 if (strlen(string_options) > 0)
344 vpx_svc_set_options(svc_ctx, string_options + 1);
345
346 enc_cfg->g_pass = VPX_RC_ONE_PASS;
347
348 if (enc_cfg->rc_target_bitrate > 0) {
349 if (min_bitrate > 0) {
350 enc_cfg->rc_2pass_vbr_minsection_pct =
351 min_bitrate * 100 / enc_cfg->rc_target_bitrate;
352 }
353 if (max_bitrate > 0) {
354 enc_cfg->rc_2pass_vbr_maxsection_pct =
355 max_bitrate * 100 / enc_cfg->rc_target_bitrate;
356 }
357 }
358
359 // Check for unrecognized options
360 for (argi = argv; *argi; ++argi)
361 if (argi[0][0] == '-' && strlen(argi[0]) > 1)
362 die("Error: Unrecognized option %s\n", *argi);
363
364 if (argv[0] == NULL) {
365 usage_exit();
366 }
367 app_input->input_ctx.filename = argv[0];
368 free(argv);
369
370 open_input_file(&app_input->input_ctx);
371 if (app_input->input_ctx.file_type == FILE_TYPE_Y4M) {
372 enc_cfg->g_w = app_input->input_ctx.width;
373 enc_cfg->g_h = app_input->input_ctx.height;
374 enc_cfg->g_timebase.den = app_input->input_ctx.framerate.numerator;
375 enc_cfg->g_timebase.num = app_input->input_ctx.framerate.denominator;
376 }
377
378 if (enc_cfg->g_w < 16 || enc_cfg->g_w % 2 || enc_cfg->g_h < 16 ||
379 enc_cfg->g_h % 2)
380 die("Invalid resolution: %d x %d\n", enc_cfg->g_w, enc_cfg->g_h);
381
382 printf(
383 "Codec %s\nframes: %d, skip: %d\n"
384 "layers: %d\n"
385 "width %d, height: %d,\n"
386 "num: %d, den: %d, bitrate: %d,\n"
387 "gop size: %d\n",
388 vpx_codec_iface_name(vpx_codec_vp9_cx()), app_input->frames_to_code,
389 app_input->frames_to_skip, svc_ctx->spatial_layers, enc_cfg->g_w,
390 enc_cfg->g_h, enc_cfg->g_timebase.num, enc_cfg->g_timebase.den,
391 enc_cfg->rc_target_bitrate, enc_cfg->kf_max_dist);
392}
393
394#if OUTPUT_RC_STATS
395// For rate control encoding stats.
396 struct RateControlStats {
397 // Number of input frames per layer.
398 int layer_input_frames[VPX_MAX_LAYERS];
399 // Total (cumulative) number of encoded frames per layer.
400 int layer_tot_enc_frames[VPX_MAX_LAYERS];
401 // Number of encoded non-key frames per layer.
402 int layer_enc_frames[VPX_MAX_LAYERS];
403 // Framerate per layer (cumulative).
404 double layer_framerate[VPX_MAX_LAYERS];
405 // Target average frame size per layer (per-frame-bandwidth per layer).
406 double layer_pfb[VPX_MAX_LAYERS];
407 // Actual average frame size per layer.
408 double layer_avg_frame_size[VPX_MAX_LAYERS];
409 // Average rate mismatch per layer (|target - actual| / target).
410 double layer_avg_rate_mismatch[VPX_MAX_LAYERS];
411 // Actual encoding bitrate per layer (cumulative).
412 double layer_encoding_bitrate[VPX_MAX_LAYERS];
413 // Average of the short-time encoder actual bitrate.
414 // TODO(marpan): Should we add these short-time stats for each layer?
415 double avg_st_encoding_bitrate;
416 // Variance of the short-time encoder actual bitrate.
417 double variance_st_encoding_bitrate;
418 // Window (number of frames) for computing short-time encoding bitrate.
419 int window_size;
420 // Number of window measurements.
421 int window_count;
422};
423
424// Note: these rate control stats assume only 1 key frame in the
425// sequence (i.e., first frame only).
426 static void set_rate_control_stats(struct RateControlStats *rc,
427 vpx_codec_enc_cfg_t *cfg) {
428 unsigned int sl, tl;
429 // Set the layer (cumulative) framerate and the target layer (non-cumulative)
430 // per-frame-bandwidth, for the rate control encoding stats below.
431 const double framerate = cfg->g_timebase.den / cfg->g_timebase.num;
432
433 for (sl = 0; sl < cfg->ss_number_layers; ++sl) {
434 for (tl = 0; tl < cfg->ts_number_layers; ++tl) {
435 const int layer = sl * cfg->ts_number_layers + tl;
436 if (cfg->ts_number_layers == 1)
437 rc->layer_framerate[layer] = framerate;
438 else
439 rc->layer_framerate[layer] = framerate / cfg->ts_rate_decimator[tl];
440 if (tl > 0) {
441 rc->layer_pfb[layer] =
442 1000.0 *
443 (cfg->layer_target_bitrate[layer] -
444 cfg->layer_target_bitrate[layer - 1]) /
445 (rc->layer_framerate[layer] - rc->layer_framerate[layer - 1]);
446 } else {
447 rc->layer_pfb[layer] = 1000.0 * cfg->layer_target_bitrate[layer] /
448 rc->layer_framerate[layer];
449 }
450 rc->layer_input_frames[layer] = 0;
451 rc->layer_enc_frames[layer] = 0;
452 rc->layer_tot_enc_frames[layer] = 0;
453 rc->layer_encoding_bitrate[layer] = 0.0;
454 rc->layer_avg_frame_size[layer] = 0.0;
455 rc->layer_avg_rate_mismatch[layer] = 0.0;
456 }
457 }
458 rc->window_count = 0;
459 rc->window_size = 15;
460 rc->avg_st_encoding_bitrate = 0.0;
461 rc->variance_st_encoding_bitrate = 0.0;
462}
463
464 static void printout_rate_control_summary(struct RateControlStats *rc,
465 vpx_codec_enc_cfg_t *cfg,
466 int frame_cnt) {
467 unsigned int sl, tl;
468 double perc_fluctuation = 0.0;
469 int tot_num_frames = 0;
470 printf("Total number of processed frames: %d\n\n", frame_cnt - 1);
471 printf("Rate control layer stats for sl%d tl%d layer(s):\n\n",
472 cfg->ss_number_layers, cfg->ts_number_layers);
473 for (sl = 0; sl < cfg->ss_number_layers; ++sl) {
474 tot_num_frames = 0;
475 for (tl = 0; tl < cfg->ts_number_layers; ++tl) {
476 const int layer = sl * cfg->ts_number_layers + tl;
477 const int num_dropped =
478 (tl > 0)
479 ? (rc->layer_input_frames[layer] - rc->layer_enc_frames[layer])
480 : (rc->layer_input_frames[layer] - rc->layer_enc_frames[layer] -
481 1);
482 tot_num_frames += rc->layer_input_frames[layer];
483 rc->layer_encoding_bitrate[layer] = 0.001 * rc->layer_framerate[layer] *
484 rc->layer_encoding_bitrate[layer] /
485 tot_num_frames;
486 rc->layer_avg_frame_size[layer] =
487 rc->layer_avg_frame_size[layer] / rc->layer_enc_frames[layer];
488 rc->layer_avg_rate_mismatch[layer] = 100.0 *
489 rc->layer_avg_rate_mismatch[layer] /
490 rc->layer_enc_frames[layer];
491 printf("For layer#: sl%d tl%d \n", sl, tl);
492 printf("Bitrate (target vs actual): %d %f.0 kbps\n",
493 cfg->layer_target_bitrate[layer],
494 rc->layer_encoding_bitrate[layer]);
495 printf("Average frame size (target vs actual): %f %f bits\n",
496 rc->layer_pfb[layer], rc->layer_avg_frame_size[layer]);
497 printf("Average rate_mismatch: %f\n", rc->layer_avg_rate_mismatch[layer]);
498 printf(
499 "Number of input frames, encoded (non-key) frames, "
500 "and percent dropped frames: %d %d %f.0 \n",
501 rc->layer_input_frames[layer], rc->layer_enc_frames[layer],
502 100.0 * num_dropped / rc->layer_input_frames[layer]);
503 printf("\n");
504 }
505 }
506 rc->avg_st_encoding_bitrate = rc->avg_st_encoding_bitrate / rc->window_count;
507 rc->variance_st_encoding_bitrate =
508 rc->variance_st_encoding_bitrate / rc->window_count -
509 (rc->avg_st_encoding_bitrate * rc->avg_st_encoding_bitrate);
510 perc_fluctuation = 100.0 * sqrt(rc->variance_st_encoding_bitrate) /
511 rc->avg_st_encoding_bitrate;
512 printf("Short-time stats, for window of %d frames: \n", rc->window_size);
513 printf("Average, rms-variance, and percent-fluct: %f %f %f \n",
514 rc->avg_st_encoding_bitrate, sqrt(rc->variance_st_encoding_bitrate),
515 perc_fluctuation);
516 printf("Num of input, num of encoded (super) frames: %d %d \n", frame_cnt,
517 tot_num_frames);
518}
519
520 static vpx_codec_err_t parse_superframe_index(const uint8_t *data,
521 size_t data_sz, uint64_t sizes[8],
522 int *count) {
523 // A chunk ending with a byte matching 0xc0 is an invalid chunk unless
524 // it is a super frame index. If the last byte of real video compression
525 // data is 0xc0 the encoder must add a 0 byte. If we have the marker but
526 // not the associated matching marker byte at the front of the index we have
527 // an invalid bitstream and need to return an error.
528
529 uint8_t marker;
530
531 marker = *(data + data_sz - 1);
532 *count = 0;
533
534 if ((marker & 0xe0) == 0xc0) {
535 const uint32_t frames = (marker & 0x7) + 1;
536 const uint32_t mag = ((marker >> 3) & 0x3) + 1;
537 const size_t index_sz = 2 + mag * frames;
538
539 // This chunk is marked as having a superframe index but doesn't have
540 // enough data for it, thus it's an invalid superframe index.
541 if (data_sz < index_sz) return VPX_CODEC_CORRUPT_FRAME;
542
543 {
544 const uint8_t marker2 = *(data + data_sz - index_sz);
545
546 // This chunk is marked as having a superframe index but doesn't have
547 // the matching marker byte at the front of the index therefore it's an
548 // invalid chunk.
549 if (marker != marker2) return VPX_CODEC_CORRUPT_FRAME;
550 }
551
552 {
553 // Found a valid superframe index.
554 uint32_t i, j;
555 const uint8_t *x = &data[data_sz - index_sz + 1];
556
557 for (i = 0; i < frames; ++i) {
558 uint32_t this_sz = 0;
559
560 for (j = 0; j < mag; ++j) this_sz |= (*x++) << (j * 8);
561 sizes[i] = this_sz;
562 }
563 *count = frames;
564 }
565 }
566 return VPX_CODEC_OK;
567}
568#endif
569
570// Example pattern for spatial layers and 2 temporal layers used in the
571// bypass/flexible mode. The pattern corresponds to the pattern
572// VP9E_TEMPORAL_LAYERING_MODE_0101 (temporal_layering_mode == 2) used in
573// non-flexible mode.
574 static void set_frame_flags_bypass_mode_ex0(
575 int tl, int num_spatial_layers, int is_key_frame,
576 vpx_svc_ref_frame_config_t *ref_frame_config) {
577 int sl;
578 for (sl = 0; sl < num_spatial_layers; ++sl)
579 ref_frame_config->update_buffer_slot[sl] = 0;
580
581 for (sl = 0; sl < num_spatial_layers; ++sl) {
582 // Set the buffer idx.
583 if (tl == 0) {
584 ref_frame_config->lst_fb_idx[sl] = sl;
585 if (sl) {
586 if (is_key_frame) {
587 ref_frame_config->lst_fb_idx[sl] = sl - 1;
588 ref_frame_config->gld_fb_idx[sl] = sl;
589 } else {
590 ref_frame_config->gld_fb_idx[sl] = sl - 1;
591 }
592 } else {
593 ref_frame_config->gld_fb_idx[sl] = 0;
594 }
595 ref_frame_config->alt_fb_idx[sl] = 0;
596 } else if (tl == 1) {
597 ref_frame_config->lst_fb_idx[sl] = sl;
598 ref_frame_config->gld_fb_idx[sl] =
599 (sl == 0) ? 0 : num_spatial_layers + sl - 1;
600 ref_frame_config->alt_fb_idx[sl] = num_spatial_layers + sl;
601 }
602 // Set the reference and update flags.
603 if (!tl) {
604 if (!sl) {
605 // Base spatial and base temporal (sl = 0, tl = 0)
606 ref_frame_config->reference_last[sl] = 1;
607 ref_frame_config->reference_golden[sl] = 0;
608 ref_frame_config->reference_alt_ref[sl] = 0;
609 ref_frame_config->update_buffer_slot[sl] |=
610 1 << ref_frame_config->lst_fb_idx[sl];
611 } else {
612 if (is_key_frame) {
613 ref_frame_config->reference_last[sl] = 1;
614 ref_frame_config->reference_golden[sl] = 0;
615 ref_frame_config->reference_alt_ref[sl] = 0;
616 ref_frame_config->update_buffer_slot[sl] |=
617 1 << ref_frame_config->gld_fb_idx[sl];
618 } else {
619 // Non-zero spatiall layer.
620 ref_frame_config->reference_last[sl] = 1;
621 ref_frame_config->reference_golden[sl] = 1;
622 ref_frame_config->reference_alt_ref[sl] = 1;
623 ref_frame_config->update_buffer_slot[sl] |=
624 1 << ref_frame_config->lst_fb_idx[sl];
625 }
626 }
627 } else if (tl == 1) {
628 if (!sl) {
629 // Base spatial and top temporal (tl = 1)
630 ref_frame_config->reference_last[sl] = 1;
631 ref_frame_config->reference_golden[sl] = 0;
632 ref_frame_config->reference_alt_ref[sl] = 0;
633 ref_frame_config->update_buffer_slot[sl] |=
634 1 << ref_frame_config->alt_fb_idx[sl];
635 } else {
636 // Non-zero spatial.
637 if (sl < num_spatial_layers - 1) {
638 ref_frame_config->reference_last[sl] = 1;
639 ref_frame_config->reference_golden[sl] = 1;
640 ref_frame_config->reference_alt_ref[sl] = 0;
641 ref_frame_config->update_buffer_slot[sl] |=
642 1 << ref_frame_config->alt_fb_idx[sl];
643 } else if (sl == num_spatial_layers - 1) {
644 // Top spatial and top temporal (non-reference -- doesn't update any
645 // reference buffers)
646 ref_frame_config->reference_last[sl] = 1;
647 ref_frame_config->reference_golden[sl] = 1;
648 ref_frame_config->reference_alt_ref[sl] = 0;
649 }
650 }
651 }
652 }
653}
654
655// Example pattern for 2 spatial layers and 2 temporal layers used in the
656// bypass/flexible mode, except only 1 spatial layer when temporal_layer_id = 1.
657 static void set_frame_flags_bypass_mode_ex1(
658 int tl, int num_spatial_layers, int is_key_frame,
659 vpx_svc_ref_frame_config_t *ref_frame_config) {
660 int sl;
661 for (sl = 0; sl < num_spatial_layers; ++sl)
662 ref_frame_config->update_buffer_slot[sl] = 0;
663
664 if (tl == 0) {
665 if (is_key_frame) {
666 ref_frame_config->lst_fb_idx[1] = 0;
667 ref_frame_config->gld_fb_idx[1] = 1;
668 } else {
669 ref_frame_config->lst_fb_idx[1] = 1;
670 ref_frame_config->gld_fb_idx[1] = 0;
671 }
672 ref_frame_config->alt_fb_idx[1] = 0;
673
674 ref_frame_config->lst_fb_idx[0] = 0;
675 ref_frame_config->gld_fb_idx[0] = 0;
676 ref_frame_config->alt_fb_idx[0] = 0;
677 }
678 if (tl == 1) {
679 ref_frame_config->lst_fb_idx[0] = 0;
680 ref_frame_config->gld_fb_idx[0] = 1;
681 ref_frame_config->alt_fb_idx[0] = 2;
682
683 ref_frame_config->lst_fb_idx[1] = 1;
684 ref_frame_config->gld_fb_idx[1] = 2;
685 ref_frame_config->alt_fb_idx[1] = 3;
686 }
687 // Set the reference and update flags.
688 if (tl == 0) {
689 // Base spatial and base temporal (sl = 0, tl = 0)
690 ref_frame_config->reference_last[0] = 1;
691 ref_frame_config->reference_golden[0] = 0;
692 ref_frame_config->reference_alt_ref[0] = 0;
693 ref_frame_config->update_buffer_slot[0] |=
694 1 << ref_frame_config->lst_fb_idx[0];
695
696 if (is_key_frame) {
697 ref_frame_config->reference_last[1] = 1;
698 ref_frame_config->reference_golden[1] = 0;
699 ref_frame_config->reference_alt_ref[1] = 0;
700 ref_frame_config->update_buffer_slot[1] |=
701 1 << ref_frame_config->gld_fb_idx[1];
702 } else {
703 // Non-zero spatiall layer.
704 ref_frame_config->reference_last[1] = 1;
705 ref_frame_config->reference_golden[1] = 1;
706 ref_frame_config->reference_alt_ref[1] = 1;
707 ref_frame_config->update_buffer_slot[1] |=
708 1 << ref_frame_config->lst_fb_idx[1];
709 }
710 }
711 if (tl == 1) {
712 // Top spatial and top temporal (non-reference -- doesn't update any
713 // reference buffers)
714 ref_frame_config->reference_last[1] = 1;
715 ref_frame_config->reference_golden[1] = 0;
716 ref_frame_config->reference_alt_ref[1] = 0;
717 }
718}
719
720#if CONFIG_VP9_DECODER && !SIMULCAST_MODE
721 static void test_decode(vpx_codec_ctx_t *encoder, vpx_codec_ctx_t *decoder,
722 const int frames_out, int *mismatch_seen) {
723 vpx_image_t enc_img, dec_img;
724 struct vp9_ref_frame ref_enc, ref_dec;
725 if (*mismatch_seen) return;
726 /* Get the internal reference frame */
727 ref_enc.idx = 0;
728 ref_dec.idx = 0;
729 vpx_codec_control(encoder, VP9_GET_REFERENCE, &ref_enc);
730 enc_img = ref_enc.img;
731 vpx_codec_control(decoder, VP9_GET_REFERENCE, &ref_dec);
732 dec_img = ref_dec.img;
733#if CONFIG_VP9_HIGHBITDEPTH
734 if ((enc_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) !=
735 (dec_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH)) {
736 if (enc_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) {
737 vpx_img_alloc(&enc_img, enc_img.fmt - VPX_IMG_FMT_HIGHBITDEPTH,
738 enc_img.d_w, enc_img.d_h, 16);
739 vpx_img_truncate_16_to_8(&enc_img, &ref_enc.img);
740 }
741 if (dec_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) {
742 vpx_img_alloc(&dec_img, dec_img.fmt - VPX_IMG_FMT_HIGHBITDEPTH,
743 dec_img.d_w, dec_img.d_h, 16);
744 vpx_img_truncate_16_to_8(&dec_img, &ref_dec.img);
745 }
746 }
747#endif
748
749 if (!compare_img(&enc_img, &dec_img)) {
750 int y[4], u[4], v[4];
751#if CONFIG_VP9_HIGHBITDEPTH
752 if (enc_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) {
753 find_mismatch_high(&enc_img, &dec_img, y, u, v);
754 } else {
755 find_mismatch(&enc_img, &dec_img, y, u, v);
756 }
757#else
758 find_mismatch(&enc_img, &dec_img, y, u, v);
759#endif
760 decoder->err = 1;
761 printf(
762 "Encode/decode mismatch on frame %d at"
763 " Y[%d, %d] {%d/%d},"
764 " U[%d, %d] {%d/%d},"
765 " V[%d, %d] {%d/%d}\n",
766 frames_out, y[0], y[1], y[2], y[3], u[0], u[1], u[2], u[3], v[0], v[1],
767 v[2], v[3]);
768 *mismatch_seen = frames_out;
769 }
770
771 vpx_img_free(&enc_img);
772 vpx_img_free(&dec_img);
773}
774#endif
775
776#if OUTPUT_RC_STATS
777 static void svc_output_rc_stats(
778 vpx_codec_ctx_t *codec, vpx_codec_enc_cfg_t *enc_cfg,
779 vpx_svc_layer_id_t *layer_id, const vpx_codec_cx_pkt_t *cx_pkt,
780 struct RateControlStats *rc, VpxVideoWriter **outfile,
781 const uint32_t frame_cnt, const double framerate) {
782 int num_layers_encoded = 0;
783 unsigned int sl, tl;
784 uint64_t sizes[8];
785 uint64_t sizes_parsed[8];
786 int count = 0;
787 double sum_bitrate = 0.0;
788 double sum_bitrate2 = 0.0;
789 memset(sizes, 0, sizeof(sizes));
790 memset(sizes_parsed, 0, sizeof(sizes_parsed));
791 vpx_codec_control(codec, VP9E_GET_SVC_LAYER_ID, layer_id);
792 parse_superframe_index(cx_pkt->data.frame.buf, cx_pkt->data.frame.sz,
793 sizes_parsed, &count);
794 if (enc_cfg->ss_number_layers == 1) {
795 sizes[0] = cx_pkt->data.frame.sz;
796 } else {
797 for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) {
798 sizes[sl] = 0;
799 if (cx_pkt->data.frame.spatial_layer_encoded[sl]) {
800 sizes[sl] = sizes_parsed[num_layers_encoded];
801 num_layers_encoded++;
802 }
803 }
804 }
805 for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) {
806 unsigned int sl2;
807 uint64_t tot_size = 0;
808#if SIMULCAST_MODE
809 for (sl2 = 0; sl2 < sl; ++sl2) {
810 if (cx_pkt->data.frame.spatial_layer_encoded[sl2]) tot_size += sizes[sl2];
811 }
812 vpx_video_writer_write_frame(outfile[sl],
813 (uint8_t *)(cx_pkt->data.frame.buf) + tot_size,
814 (size_t)(sizes[sl]), cx_pkt->data.frame.pts);
815#else
816 for (sl2 = 0; sl2 <= sl; ++sl2) {
817 if (cx_pkt->data.frame.spatial_layer_encoded[sl2]) tot_size += sizes[sl2];
818 }
819 if (tot_size > 0)
820 vpx_video_writer_write_frame(outfile[sl], cx_pkt->data.frame.buf,
821 (size_t)(tot_size), cx_pkt->data.frame.pts);
822#endif // SIMULCAST_MODE
823 }
824 for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) {
825 if (cx_pkt->data.frame.spatial_layer_encoded[sl]) {
826 for (tl = layer_id->temporal_layer_id; tl < enc_cfg->ts_number_layers;
827 ++tl) {
828 const int layer = sl * enc_cfg->ts_number_layers + tl;
829 ++rc->layer_tot_enc_frames[layer];
830 rc->layer_encoding_bitrate[layer] += 8.0 * sizes[sl];
831 // Keep count of rate control stats per layer, for non-key
832 // frames.
833 if (tl == (unsigned int)layer_id->temporal_layer_id &&
834 !(cx_pkt->data.frame.flags & VPX_FRAME_IS_KEY)) {
835 rc->layer_avg_frame_size[layer] += 8.0 * sizes[sl];
836 rc->layer_avg_rate_mismatch[layer] +=
837 fabs(8.0 * sizes[sl] - rc->layer_pfb[layer]) /
838 rc->layer_pfb[layer];
839 ++rc->layer_enc_frames[layer];
840 }
841 }
842 }
843 }
844
845 // Update for short-time encoding bitrate states, for moving
846 // window of size rc->window, shifted by rc->window / 2.
847 // Ignore first window segment, due to key frame.
848 if (frame_cnt > (unsigned int)rc->window_size) {
849 for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) {
850 if (cx_pkt->data.frame.spatial_layer_encoded[sl])
851 sum_bitrate += 0.001 * 8.0 * sizes[sl] * framerate;
852 }
853 if (frame_cnt % rc->window_size == 0) {
854 rc->window_count += 1;
855 rc->avg_st_encoding_bitrate += sum_bitrate / rc->window_size;
856 rc->variance_st_encoding_bitrate +=
857 (sum_bitrate / rc->window_size) * (sum_bitrate / rc->window_size);
858 }
859 }
860
861 // Second shifted window.
862 if (frame_cnt > (unsigned int)(rc->window_size + rc->window_size / 2)) {
863 for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) {
864 sum_bitrate2 += 0.001 * 8.0 * sizes[sl] * framerate;
865 }
866
867 if (frame_cnt > (unsigned int)(2 * rc->window_size) &&
868 frame_cnt % rc->window_size == 0) {
869 rc->window_count += 1;
870 rc->avg_st_encoding_bitrate += sum_bitrate2 / rc->window_size;
871 rc->variance_st_encoding_bitrate +=
872 (sum_bitrate2 / rc->window_size) * (sum_bitrate2 / rc->window_size);
873 }
874 }
875}
876#endif
877
878 int main(int argc, const char **argv) {
879 AppInput app_input;
880 VpxVideoWriter *writer = NULL;
881 VpxVideoInfo info;
882 vpx_codec_ctx_t encoder;
883 vpx_codec_enc_cfg_t enc_cfg;
884 SvcContext svc_ctx;
885 vpx_svc_frame_drop_t svc_drop_frame;
886 uint32_t i;
887 uint32_t frame_cnt = 0;
888 vpx_image_t raw;
889 vpx_codec_err_t res;
890 int pts = 0; /* PTS starts at 0 */
891 int frame_duration = 1; /* 1 timebase tick per frame */
892 int end_of_stream = 0;
893#if OUTPUT_FRAME_STATS
894 int frames_received = 0;
895#endif
896#if OUTPUT_RC_STATS
897 VpxVideoWriter *outfile[VPX_SS_MAX_LAYERS] = { NULL };
898 struct RateControlStats rc;
899 vpx_svc_layer_id_t layer_id;
900 vpx_svc_ref_frame_config_t ref_frame_config;
901 unsigned int sl;
902 double framerate = 30.0;
903#endif
904 struct vpx_usec_timer timer;
905 int64_t cx_time = 0;
906#if CONFIG_INTERNAL_STATS
907 FILE *f = fopen("opsnr.stt", "a");
908#endif
909#if CONFIG_VP9_DECODER && !SIMULCAST_MODE
910 int mismatch_seen = 0;
911 vpx_codec_ctx_t decoder;
912#endif
913 memset(&svc_ctx, 0, sizeof(svc_ctx));
914 memset(&app_input, 0, sizeof(AppInput));
915 memset(&info, 0, sizeof(VpxVideoInfo));
916 memset(&layer_id, 0, sizeof(vpx_svc_layer_id_t));
917 memset(&rc, 0, sizeof(struct RateControlStats));
918 exec_name = argv[0];
919
920 /* Setup default input stream settings */
921 app_input.input_ctx.framerate.numerator = 30;
922 app_input.input_ctx.framerate.denominator = 1;
923 app_input.input_ctx.only_i420 = 1;
924 app_input.input_ctx.bit_depth = 0;
925
926 parse_command_line(argc, argv, &app_input, &svc_ctx, &enc_cfg);
927
928 // Y4M reader handles its own allocation.
929 if (app_input.input_ctx.file_type != FILE_TYPE_Y4M) {
930// Allocate image buffer
931#if CONFIG_VP9_HIGHBITDEPTH
932 if (!vpx_img_alloc(&raw,
933 enc_cfg.g_input_bit_depth == 8 ? VPX_IMG_FMT_I420
934 : VPX_IMG_FMT_I42016,
935 enc_cfg.g_w, enc_cfg.g_h, 32)) {
936 die("Failed to allocate image %dx%d\n", enc_cfg.g_w, enc_cfg.g_h);
937 }
938#else
939 if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, enc_cfg.g_w, enc_cfg.g_h, 32)) {
940 die("Failed to allocate image %dx%d\n", enc_cfg.g_w, enc_cfg.g_h);
941 }
942#endif // CONFIG_VP9_HIGHBITDEPTH
943 }
944
945 // Initialize codec
946 if (vpx_svc_init(&svc_ctx, &encoder, vpx_codec_vp9_cx(), &enc_cfg) !=
947 VPX_CODEC_OK)
948 die("Failed to initialize encoder\n");
949#if CONFIG_VP9_DECODER && !SIMULCAST_MODE
950 if (vpx_codec_dec_init(
951 &decoder, get_vpx_decoder_by_name("vp9")->codec_interface(), NULL, 0))
952 die("Failed to initialize decoder\n");
953#endif
954
955#if OUTPUT_RC_STATS
956 rc.window_count = 1;
957 rc.window_size = 15; // Silence a static analysis warning.
958 rc.avg_st_encoding_bitrate = 0.0;
959 rc.variance_st_encoding_bitrate = 0.0;
960 if (svc_ctx.output_rc_stat) {
961 set_rate_control_stats(&rc, &enc_cfg);
962 framerate = enc_cfg.g_timebase.den / enc_cfg.g_timebase.num;
963 }
964#endif
965
966 info.codec_fourcc = VP9_FOURCC;
967 info.frame_width = enc_cfg.g_w;
968 info.frame_height = enc_cfg.g_h;
969 info.time_base.numerator = enc_cfg.g_timebase.num;
970 info.time_base.denominator = enc_cfg.g_timebase.den;
971
972 writer =
973 vpx_video_writer_open(app_input.output_filename, kContainerIVF, &info);
974 if (!writer)
975 die("Failed to open %s for writing\n", app_input.output_filename);
976
977#if OUTPUT_RC_STATS
978 // Write out spatial layer stream.
979 // TODO(marpan/jianj): allow for writing each spatial and temporal stream.
980 if (svc_ctx.output_rc_stat) {
981 for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
982 char file_name[PATH_MAX];
983
984 snprintf(file_name, sizeof(file_name), "%s_s%d.ivf",
985 app_input.output_filename, sl);
986 outfile[sl] = vpx_video_writer_open(file_name, kContainerIVF, &info);
987 if (!outfile[sl]) die("Failed to open %s for writing", file_name);
988 }
989 }
990#endif
991
992 // skip initial frames
993 for (i = 0; i < app_input.frames_to_skip; ++i)
994 read_frame(&app_input.input_ctx, &raw);
995
996 if (svc_ctx.speed != -1)
997 vpx_codec_control(&encoder, VP8E_SET_CPUUSED, svc_ctx.speed);
998 if (svc_ctx.threads) {
999 vpx_codec_control(&encoder, VP9E_SET_TILE_COLUMNS,
1000 get_msb(svc_ctx.threads));
1001 if (svc_ctx.threads > 1)
1002 vpx_codec_control(&encoder, VP9E_SET_ROW_MT, 1);
1003 else
1004 vpx_codec_control(&encoder, VP9E_SET_ROW_MT, 0);
1005 }
1006 if (svc_ctx.speed >= 5 && svc_ctx.aqmode == 1)
1007 vpx_codec_control(&encoder, VP9E_SET_AQ_MODE, 3);
1008 if (svc_ctx.speed >= 5)
1009 vpx_codec_control(&encoder, VP8E_SET_STATIC_THRESHOLD, 1);
1010 vpx_codec_control(&encoder, VP8E_SET_MAX_INTRA_BITRATE_PCT, 900);
1011
1012 vpx_codec_control(&encoder, VP9E_SET_SVC_INTER_LAYER_PRED,
1013 app_input.inter_layer_pred);
1014
1015 vpx_codec_control(&encoder, VP9E_SET_NOISE_SENSITIVITY, 0);
1016
1017 vpx_codec_control(&encoder, VP9E_SET_TUNE_CONTENT, app_input.tune_content);
1018
1019 vpx_codec_control(&encoder, VP9E_SET_DISABLE_OVERSHOOT_MAXQ_CBR, 0);
1020 vpx_codec_control(&encoder, VP9E_SET_DISABLE_LOOPFILTER, 0);
1021
1022 svc_drop_frame.framedrop_mode = FULL_SUPERFRAME_DROP;
1023 for (sl = 0; sl < (unsigned int)svc_ctx.spatial_layers; ++sl)
1024 svc_drop_frame.framedrop_thresh[sl] = enc_cfg.rc_dropframe_thresh;
1025 svc_drop_frame.max_consec_drop = INT_MAX;
1026 vpx_codec_control(&encoder, VP9E_SET_SVC_FRAME_DROP_LAYER, &svc_drop_frame);
1027
1028 // Encode frames
1029 while (!end_of_stream) {
1030 vpx_codec_iter_t iter = NULL;
1031 const vpx_codec_cx_pkt_t *cx_pkt;
1032 // Example patterns for bypass/flexible mode:
1033 // example_pattern = 0: 2 temporal layers, and spatial_layers = 1,2,3. Exact
1034 // to fixed SVC patterns. example_pattern = 1: 2 spatial and 2 temporal
1035 // layers, with SL0 only has TL0, and SL1 has both TL0 and TL1. This example
1036 // uses the extended API.
1037 int example_pattern = 0;
1038 if (frame_cnt >= app_input.frames_to_code ||
1039 !read_frame(&app_input.input_ctx, &raw)) {
1040 // We need one extra vpx_svc_encode call at end of stream to flush
1041 // encoder and get remaining data
1042 end_of_stream = 1;
1043 }
1044
1045 // For BYPASS/FLEXIBLE mode, set the frame flags (reference and updates)
1046 // and the buffer indices for each spatial layer of the current
1047 // (super)frame to be encoded. The spatial and temporal layer_id for the
1048 // current frame also needs to be set.
1049 // TODO(marpan): Should rename the "VP9E_TEMPORAL_LAYERING_MODE_BYPASS"
1050 // mode to "VP9E_LAYERING_MODE_BYPASS".
1051 if (svc_ctx.temporal_layering_mode == VP9E_TEMPORAL_LAYERING_MODE_BYPASS) {
1052 layer_id.spatial_layer_id = 0;
1053 // Example for 2 temporal layers.
1054 if (frame_cnt % 2 == 0) {
1055 layer_id.temporal_layer_id = 0;
1056 for (i = 0; i < VPX_SS_MAX_LAYERS; i++)
1057 layer_id.temporal_layer_id_per_spatial[i] = 0;
1058 } else {
1059 layer_id.temporal_layer_id = 1;
1060 for (i = 0; i < VPX_SS_MAX_LAYERS; i++)
1061 layer_id.temporal_layer_id_per_spatial[i] = 1;
1062 }
1063 if (example_pattern == 1) {
1064 // example_pattern 1 is hard-coded for 2 spatial and 2 temporal layers.
1065 assert(svc_ctx.spatial_layers == 2);
1066 assert(svc_ctx.temporal_layers == 2);
1067 if (frame_cnt % 2 == 0) {
1068 // Spatial layer 0 and 1 are encoded.
1069 layer_id.temporal_layer_id_per_spatial[0] = 0;
1070 layer_id.temporal_layer_id_per_spatial[1] = 0;
1071 layer_id.spatial_layer_id = 0;
1072 } else {
1073 // Only spatial layer 1 is encoded here.
1074 layer_id.temporal_layer_id_per_spatial[1] = 1;
1075 layer_id.spatial_layer_id = 1;
1076 }
1077 }
1078 vpx_codec_control(&encoder, VP9E_SET_SVC_LAYER_ID, &layer_id);
1079 // TODO(jianj): Fix the parameter passing for "is_key_frame" in
1080 // set_frame_flags_bypass_model() for case of periodic key frames.
1081 if (example_pattern == 0) {
1082 set_frame_flags_bypass_mode_ex0(layer_id.temporal_layer_id,
1083 svc_ctx.spatial_layers, frame_cnt == 0,
1084 &ref_frame_config);
1085 } else if (example_pattern == 1) {
1086 set_frame_flags_bypass_mode_ex1(layer_id.temporal_layer_id,
1087 svc_ctx.spatial_layers, frame_cnt == 0,
1088 &ref_frame_config);
1089 }
1090 ref_frame_config.duration[0] = frame_duration * 1;
1091 ref_frame_config.duration[1] = frame_duration * 1;
1092
1093 vpx_codec_control(&encoder, VP9E_SET_SVC_REF_FRAME_CONFIG,
1094 &ref_frame_config);
1095 // Keep track of input frames, to account for frame drops in rate control
1096 // stats/metrics.
1097 for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
1098 ++rc.layer_input_frames[sl * enc_cfg.ts_number_layers +
1099 layer_id.temporal_layer_id];
1100 }
1101 } else {
1102 // For the fixed pattern SVC, temporal layer is given by superframe count.
1103 unsigned int tl = 0;
1104 if (enc_cfg.ts_number_layers == 2)
1105 tl = (frame_cnt % 2 != 0);
1106 else if (enc_cfg.ts_number_layers == 3) {
1107 if (frame_cnt % 2 != 0) tl = 2;
1108 if ((frame_cnt > 1) && ((frame_cnt - 2) % 4 == 0)) tl = 1;
1109 }
1110 for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl)
1111 ++rc.layer_input_frames[sl * enc_cfg.ts_number_layers + tl];
1112 }
1113
1114 vpx_usec_timer_start(&timer);
1115 res = vpx_svc_encode(
1116 &svc_ctx, &encoder, (end_of_stream ? NULL : &raw), pts, frame_duration,
1117 svc_ctx.speed >= 5 ? VPX_DL_REALTIME : VPX_DL_GOOD_QUALITY);
1118 vpx_usec_timer_mark(&timer);
1119 cx_time += vpx_usec_timer_elapsed(&timer);
1120
1121 fflush(stdout);
1122 if (res != VPX_CODEC_OK) {
1123 die_codec(&encoder, "Failed to encode frame");
1124 }
1125
1126 while ((cx_pkt = vpx_codec_get_cx_data(&encoder, &iter)) != NULL) {
1127 switch (cx_pkt->kind) {
1128 case VPX_CODEC_CX_FRAME_PKT: {
1129 SvcInternal_t *const si = (SvcInternal_t *)svc_ctx.internal;
1130 if (cx_pkt->data.frame.sz > 0) {
1131 vpx_video_writer_write_frame(writer, cx_pkt->data.frame.buf,
1132 cx_pkt->data.frame.sz,
1133 cx_pkt->data.frame.pts);
1134#if OUTPUT_RC_STATS
1135 if (svc_ctx.output_rc_stat) {
1136 svc_output_rc_stats(&encoder, &enc_cfg, &layer_id, cx_pkt, &rc,
1137 outfile, frame_cnt, framerate);
1138 }
1139#endif
1140 }
1141#if OUTPUT_FRAME_STATS
1142 printf("SVC frame: %d, kf: %d, size: %d, pts: %d\n", frames_received,
1143 !!(cx_pkt->data.frame.flags & VPX_FRAME_IS_KEY),
1144 (int)cx_pkt->data.frame.sz, (int)cx_pkt->data.frame.pts);
1145 ++frames_received;
1146#endif
1147 if (enc_cfg.ss_number_layers > 1) {
1148 uint64_t sizes[8] = { 0 };
1149 int count = 0;
1150 int num_layers_encoded = 0;
1151 parse_superframe_index(cx_pkt->data.frame.buf,
1152 cx_pkt->data.frame.sz, sizes, &count);
1153 for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
1154 if (cx_pkt->data.frame.spatial_layer_encoded[sl]) {
1155 si->bytes_sum[sl] += (int)sizes[num_layers_encoded];
1156 num_layers_encoded++;
1157 }
1158 }
1159 } else {
1160 si->bytes_sum[0] += (int)cx_pkt->data.frame.sz;
1161 }
1162#if CONFIG_VP9_DECODER && !SIMULCAST_MODE
1163 if (vpx_codec_decode(&decoder, cx_pkt->data.frame.buf,
1164 (unsigned int)cx_pkt->data.frame.sz, NULL, 0))
1165 die_codec(&decoder, "Failed to decode frame.");
1166 vpx_codec_control(&encoder, VP9E_GET_SVC_LAYER_ID, &layer_id);
1167 // Don't look for mismatch on top spatial and top temporal layers as
1168 // they are non reference frames. Don't look at frames whose top
1169 // spatial layer is dropped.
1170 if ((enc_cfg.ss_number_layers > 1 || enc_cfg.ts_number_layers > 1) &&
1171 cx_pkt->data.frame
1172 .spatial_layer_encoded[enc_cfg.ss_number_layers - 1] &&
1173 !(layer_id.temporal_layer_id > 0 &&
1174 layer_id.temporal_layer_id ==
1175 (int)enc_cfg.ts_number_layers - 1)) {
1176 test_decode(&encoder, &decoder, frame_cnt, &mismatch_seen);
1177 }
1178#endif
1179 break;
1180 }
1181 case VPX_CODEC_PSNR_PKT: {
1182 SvcInternal_t *const si = (SvcInternal_t *)svc_ctx.internal;
1183 sl = cx_pkt->data.psnr.spatial_layer_id;
1184 si->number_of_frames[sl]++;
1185 for (int j = 0; j < 4; ++j) {
1186 si->psnr_sum[sl][j] += cx_pkt->data.psnr.psnr[j];
1187 si->sse_sum[sl][j] += cx_pkt->data.psnr.sse[j];
1188 }
1189 break;
1190 }
1191 case VPX_CODEC_STATS_PKT: {
1192 stats_write(&app_input.rc_stats, cx_pkt->data.twopass_stats.buf,
1193 cx_pkt->data.twopass_stats.sz);
1194 break;
1195 }
1196 default: {
1197 break;
1198 }
1199 }
1200 }
1201
1202 if (!end_of_stream) {
1203 ++frame_cnt;
1204 pts += frame_duration;
1205 }
1206 }
1207
1208 printf("Processed %d frames\n", frame_cnt);
1209
1210 close_input_file(&app_input.input_ctx);
1211
1212#if OUTPUT_RC_STATS
1213 if (svc_ctx.output_rc_stat) {
1214 printout_rate_control_summary(&rc, &enc_cfg, frame_cnt);
1215 printf("\n");
1216 }
1217#endif
1218 if (vpx_codec_destroy(&encoder))
1219 die_codec(&encoder, "Failed to destroy codec");
1220 if (writer) {
1221 vpx_video_writer_close(writer);
1222 }
1223#if OUTPUT_RC_STATS
1224 if (svc_ctx.output_rc_stat) {
1225 for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
1226 vpx_video_writer_close(outfile[sl]);
1227 }
1228 }
1229#endif
1230#if CONFIG_INTERNAL_STATS
1231 if (mismatch_seen) {
1232 fprintf(f, "First mismatch occurred in frame %d\n", mismatch_seen);
1233 } else {
1234 fprintf(f, "No mismatch detected in recon buffers\n");
1235 }
1236 fclose(f);
1237#endif
1238 printf("Frame cnt and encoding time/FPS stats for encoding: %d %f %f \n",
1239 frame_cnt, 1000 * (float)cx_time / (double)(frame_cnt * 1000000),
1240 1000000 * (double)frame_cnt / (double)cx_time);
1241 if (app_input.input_ctx.file_type != FILE_TYPE_Y4M) {
1242 vpx_img_free(&raw);
1243 }
1244 // display average size, psnr
1245 vpx_svc_dump_statistics(&svc_ctx);
1246 vpx_svc_release(&svc_ctx);
1247 return EXIT_SUCCESS;
1248}
vpx_codec_err_to_string
const char * vpx_codec_err_to_string(vpx_codec_err_t err)
Convert error number to printable string.
vpx_codec_ctx_t
struct vpx_codec_ctx vpx_codec_ctx_t
Codec context structure.
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:408
vpx_codec_err_t
vpx_codec_err_t
Algorithm return codes.
Definition vpx_codec.h:93
VPX_CODEC_CORRUPT_FRAME
@ VPX_CODEC_CORRUPT_FRAME
The coded data for this stream is corrupt or incomplete.
Definition vpx_codec.h:133
VPX_CODEC_OK
@ VPX_CODEC_OK
Operation completed without error.
Definition vpx_codec.h:95
VPX_BITS_8
@ VPX_BITS_8
Definition vpx_codec.h:221
VPX_BITS_12
@ VPX_BITS_12
Definition vpx_codec.h:223
VPX_BITS_10
@ VPX_BITS_10
Definition vpx_codec.h:222
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_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_DL_REALTIME
#define VPX_DL_REALTIME
deadline parameter analogous to VPx REALTIME mode.
Definition vpx_encoder.h:1012
vpx_codec_enc_cfg_t
struct vpx_codec_enc_cfg vpx_codec_enc_cfg_t
Encoder configuration structure.
VPX_DL_GOOD_QUALITY
#define VPX_DL_GOOD_QUALITY
deadline parameter analogous to VPx GOOD QUALITY mode.
Definition vpx_encoder.h:1014
vpx_codec_get_cx_data
const vpx_codec_cx_pkt_t * vpx_codec_get_cx_data(vpx_codec_ctx_t *ctx, vpx_codec_iter_t *iter)
Encoded data iterator.
VPX_MAX_LAYERS
#define VPX_MAX_LAYERS
Definition vpx_encoder.h:44
VPX_FRAME_IS_KEY
#define VPX_FRAME_IS_KEY
Definition vpx_encoder.h:123
VPX_SS_MAX_LAYERS
#define VPX_SS_MAX_LAYERS
Definition vpx_encoder.h:47
vpx_codec_enc_config_default
vpx_codec_err_t vpx_codec_enc_config_default(vpx_codec_iface_t *iface, vpx_codec_enc_cfg_t *cfg, unsigned int usage)
Get a default configuration.
vpx_codec_cx_pkt_t
struct vpx_codec_cx_pkt vpx_codec_cx_pkt_t
Encoder output packet.
VPX_CODEC_PSNR_PKT
@ VPX_CODEC_PSNR_PKT
Definition vpx_encoder.h:158
VPX_CODEC_CX_FRAME_PKT
@ VPX_CODEC_CX_FRAME_PKT
Definition vpx_encoder.h:155
VPX_CODEC_STATS_PKT
@ VPX_CODEC_STATS_PKT
Definition vpx_encoder.h:156
VPX_RC_ONE_PASS
@ VPX_RC_ONE_PASS
Definition vpx_encoder.h:234
VPX_CQ
@ VPX_CQ
Definition vpx_encoder.h:243
vpx_codec_vp9_cx
vpx_codec_iface_t * vpx_codec_vp9_cx(void)
The interface to the VP9 encoder.
vpx_svc_layer_id_t
struct vpx_svc_layer_id vpx_svc_layer_id_t
vp9 svc layer parameters
vpx_svc_ref_frame_config_t
struct vpx_svc_ref_frame_config vpx_svc_ref_frame_config_t
vp9 svc frame flag parameters.
vpx_svc_frame_drop_t
struct vpx_svc_frame_drop vpx_svc_frame_drop_t
vp9 svc frame dropping parameters.
FULL_SUPERFRAME_DROP
@ FULL_SUPERFRAME_DROP
Definition vp8cx.h:941
VP9E_SET_SVC_LAYER_ID
@ VP9E_SET_SVC_LAYER_ID
Codec control function to set svc layer for spatial and temporal.
Definition vp8cx.h:471
VP8E_SET_MAX_INTRA_BITRATE_PCT
@ VP8E_SET_MAX_INTRA_BITRATE_PCT
Codec control function to set Max data rate for Intra frames.
Definition vp8cx.h:275
VP9E_SET_SVC_INTER_LAYER_PRED
@ VP9E_SET_SVC_INTER_LAYER_PRED
Codec control function to constrain the inter-layer prediction (prediction of lower spatial resolutio...
Definition vp8cx.h:625
VP9E_SET_AQ_MODE
@ VP9E_SET_AQ_MODE
Codec control function to set adaptive quantization mode.
Definition vp8cx.h:416
VP9E_SET_DISABLE_OVERSHOOT_MAXQ_CBR
@ VP9E_SET_DISABLE_OVERSHOOT_MAXQ_CBR
Codec control function to disable increase Q on overshoot in CBR.
Definition vp8cx.h:700
VP9E_SET_TUNE_CONTENT
@ VP9E_SET_TUNE_CONTENT
Codec control function to set content type.
Definition vp8cx.h:481
VP9E_SET_ROW_MT
@ VP9E_SET_ROW_MT
Codec control function to set row level multi-threading.
Definition vp8cx.h:576
VP8E_SET_CPUUSED
@ VP8E_SET_CPUUSED
Codec control function to set encoder internal speed settings.
Definition vp8cx.h:173
VP9E_SET_TILE_COLUMNS
@ VP9E_SET_TILE_COLUMNS
Codec control function to set number of tile columns.
Definition vp8cx.h:369
VP9E_SET_SVC_FRAME_DROP_LAYER
@ VP9E_SET_SVC_FRAME_DROP_LAYER
Codec control function to set mode and thresholds for frame dropping in SVC. Drop frame thresholds ar...
Definition vp8cx.h:634
VP9E_SET_SVC_REF_FRAME_CONFIG
@ VP9E_SET_SVC_REF_FRAME_CONFIG
Codec control function to set the frame flags and buffer indices for spatial layers....
Definition vp8cx.h:551
VP8E_SET_STATIC_THRESHOLD
@ VP8E_SET_STATIC_THRESHOLD
Codec control function to set the threshold for MBs treated static.
Definition vp8cx.h:206
VP9E_SET_DISABLE_LOOPFILTER
@ VP9E_SET_DISABLE_LOOPFILTER
Codec control function to disable loopfilter.
Definition vp8cx.h:709
VP9E_SET_NOISE_SENSITIVITY
@ VP9E_SET_NOISE_SENSITIVITY
Codec control function to set noise sensitivity.
Definition vp8cx.h:439
VP9E_GET_SVC_LAYER_ID
@ VP9E_GET_SVC_LAYER_ID
Codec control function to get svc layer ID.
Definition vp8cx.h:489
VP9E_TEMPORAL_LAYERING_MODE_BYPASS
@ VP9E_TEMPORAL_LAYERING_MODE_BYPASS
Bypass mode. Used when application needs to control temporal layering. This will only work when the n...
Definition vp8cx.h:808
VP9_GET_REFERENCE
@ VP9_GET_REFERENCE
Definition vp8.h:55
vp9_ref_frame
VP9 specific reference frame data struct.
Definition vp8.h:110
vp9_ref_frame::idx
int idx
Definition vp8.h:111
vpx_codec_ctx::err
vpx_codec_err_t err
Definition vpx_codec.h:203
vpx_codec_cx_pkt::data
union vpx_codec_cx_pkt::@105367030154200007005241002351245163342006201240 data
vpx_codec_cx_pkt::frame
struct vpx_codec_cx_pkt::@105367030154200007005241002351245163342006201240::@337301343345304110063267327113124066016321050157 frame
vpx_codec_cx_pkt::flags
vpx_codec_frame_flags_t flags
Definition vpx_encoder.h:177
vpx_codec_cx_pkt::twopass_stats
vpx_fixed_buf_t twopass_stats
Definition vpx_encoder.h:190
vpx_codec_cx_pkt::kind
enum vpx_codec_cx_pkt_kind kind
Definition vpx_encoder.h:168
vpx_codec_cx_pkt::psnr
double psnr[4]
Definition vpx_encoder.h:195
vpx_codec_cx_pkt::spatial_layer_encoded
uint8_t spatial_layer_encoded[5]
Flag to indicate if spatial layer frame in this packet is encoded or dropped. VP8 will always be set ...
Definition vpx_encoder.h:188
vpx_codec_cx_pkt::sz
size_t sz
Definition vpx_encoder.h:172
vpx_codec_cx_pkt::buf
void * buf
Definition vpx_encoder.h:171
vpx_codec_cx_pkt::pts
vpx_codec_pts_t pts
time stamp to show frame (in timebase units)
Definition vpx_encoder.h:174
vpx_codec_enc_cfg::temporal_layering_mode
int temporal_layering_mode
Temporal layering mode indicating which temporal layering scheme to use.
Definition vpx_encoder.h:706
vpx_codec_enc_cfg::kf_min_dist
unsigned int kf_min_dist
Keyframe minimum interval.
Definition vpx_encoder.h:618
vpx_codec_enc_cfg::ts_number_layers
unsigned int ts_number_layers
Number of temporal coding layers.
Definition vpx_encoder.h:657
vpx_codec_enc_cfg::ss_number_layers
unsigned int ss_number_layers
Number of spatial coding layers.
Definition vpx_encoder.h:637
vpx_codec_enc_cfg::rc_2pass_vbr_minsection_pct
unsigned int rc_2pass_vbr_minsection_pct
Two-pass mode per-GOP minimum bitrate.
Definition vpx_encoder.h:583
vpx_codec_enc_cfg::g_profile
unsigned int g_profile
Bitstream profile to use.
Definition vpx_encoder.h:306
vpx_codec_enc_cfg::layer_target_bitrate
unsigned int layer_target_bitrate[12]
Target bitrate for each spatial/temporal layer.
Definition vpx_encoder.h:697
vpx_codec_enc_cfg::g_h
unsigned int g_h
Height of the frame.
Definition vpx_encoder.h:324
vpx_codec_enc_cfg::g_error_resilient
vpx_codec_er_flags_t g_error_resilient
Enable error resilient modes.
Definition vpx_encoder.h:362
vpx_codec_enc_cfg::g_w
unsigned int g_w
Width of the frame.
Definition vpx_encoder.h:315
vpx_codec_enc_cfg::rc_dropframe_thresh
unsigned int rc_dropframe_thresh
Temporal resampling configuration, if supported by the codec.
Definition vpx_encoder.h:402
vpx_codec_enc_cfg::g_timebase
struct vpx_rational g_timebase
Stream timebase units.
Definition vpx_encoder.h:354
vpx_codec_enc_cfg::g_pass
enum vpx_enc_pass g_pass
Multi-pass Encoding Mode.
Definition vpx_encoder.h:369
vpx_codec_enc_cfg::g_lag_in_frames
unsigned int g_lag_in_frames
Allow lagged encoding.
Definition vpx_encoder.h:383
vpx_codec_enc_cfg::rc_end_usage
enum vpx_rc_mode rc_end_usage
Rate control algorithm to use.
Definition vpx_encoder.h:451
vpx_codec_enc_cfg::g_bit_depth
vpx_bit_depth_t g_bit_depth
Bit-depth of the codec.
Definition vpx_encoder.h:332
vpx_codec_enc_cfg::rc_2pass_vbr_maxsection_pct
unsigned int rc_2pass_vbr_maxsection_pct
Two-pass mode per-GOP maximum bitrate.
Definition vpx_encoder.h:590
vpx_codec_enc_cfg::rc_target_bitrate
unsigned int rc_target_bitrate
Target data rate.
Definition vpx_encoder.h:473
vpx_codec_enc_cfg::g_input_bit_depth
unsigned int g_input_bit_depth
Bit-depth of the input frames.
Definition vpx_encoder.h:340
vpx_codec_enc_cfg::ts_rate_decimator
unsigned int ts_rate_decimator[5]
Frame rate decimation factor for each temporal layer.
Definition vpx_encoder.h:671
vpx_codec_enc_cfg::kf_max_dist
unsigned int kf_max_dist
Keyframe maximum interval.
Definition vpx_encoder.h:627
vpx_fixed_buf::sz
size_t sz
Definition vpx_encoder.h:105
vpx_fixed_buf::buf
void * buf
Definition vpx_encoder.h:104
vpx_image::fmt
vpx_img_fmt_t fmt
Definition vpx_image.h:77
vpx_image::d_h
unsigned int d_h
Definition vpx_image.h:88
vpx_image::d_w
unsigned int d_w
Definition vpx_image.h:87
vpx_rational::den
int den
Definition vpx_encoder.h:229
vpx_rational::num
int num
Definition vpx_encoder.h:228
vpx_svc_frame_drop::framedrop_thresh
int framedrop_thresh[5]
Definition vp8cx.h:954
vpx_svc_frame_drop::framedrop_mode
SVC_LAYER_DROP_MODE framedrop_mode
Definition vp8cx.h:956
vpx_svc_frame_drop::max_consec_drop
int max_consec_drop
Definition vp8cx.h:957
vpx_svc_layer_id::temporal_layer_id
int temporal_layer_id
Definition vp8cx.h:905
vpx_svc_ref_frame_config::lst_fb_idx
int lst_fb_idx[5]
Definition vp8cx.h:918
vpx_svc_ref_frame_config::update_buffer_slot
int update_buffer_slot[5]
Definition vp8cx.h:921
vpx_svc_ref_frame_config::gld_fb_idx
int gld_fb_idx[5]
Definition vp8cx.h:919
vpx_svc_ref_frame_config::reference_last
int reference_last[5]
Definition vp8cx.h:926
vpx_svc_ref_frame_config::reference_golden
int reference_golden[5]
Definition vp8cx.h:927
vpx_svc_ref_frame_config::reference_alt_ref
int reference_alt_ref[5]
Definition vp8cx.h:928
vpx_svc_ref_frame_config::duration
int64_t duration[5]
Definition vp8cx.h:929
vpx_svc_ref_frame_config::alt_fb_idx
int alt_fb_idx[5]
Definition vp8cx.h:920
vp8cx.h
Provides definitions for using VP8 or VP9 encoder algorithm within the vpx Codec Interface.
vpx_decoder.h
Describes the decoder algorithm interface to applications.
vpx_encoder.h
Describes the encoder algorithm interface to applications.
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_IMG_FMT_I42016
@ VPX_IMG_FMT_I42016
Definition vpx_image.h:47
VPX_IMG_FMT_I420
@ VPX_IMG_FMT_I420
Definition vpx_image.h:42
vpx_image_t
struct vpx_image vpx_image_t
Image Descriptor.
vpx_img_free
void vpx_img_free(vpx_image_t *img)
Close an image descriptor.