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 <math.h>
18 #include <stdarg.h>
19 #include <stdlib.h>
20 #include <string.h>
21 #include <time.h>
22
23 #include "../args.h"
24 #include "../tools_common.h"
25 #include "../video_writer.h"
26
27 #include "../vpx_ports/vpx_timer.h"
28 #include "./svc_context.h"
29 #include "vpx/vp8cx.h"
30 #include "vpx/vpx_encoder.h"
31 #include "../vpxstats.h"
32 #include "vp9/encoder/vp9_encoder.h"
33 #include "./y4minput.h"
34
35 #define OUTPUT_RC_STATS 1
36
37 #define SIMULCAST_MODE 0
38
39 static const arg_def_t outputfile =
40 ARG_DEF("o", "output", 1, "Output filename");
41 static const arg_def_t skip_frames_arg =
42 ARG_DEF("s", "skip-frames", 1, "input frames to skip");
43 static const arg_def_t frames_arg =
44 ARG_DEF("f", "frames", 1, "number of frames to encode");
45 static const arg_def_t threads_arg =
46 ARG_DEF("th", "threads", 1, "number of threads to use");
47 #if OUTPUT_RC_STATS
48 static const arg_def_t output_rc_stats_arg =
49 ARG_DEF("rcstat", "output_rc_stats", 1, "output rc stats");
50 #endif
51 static const arg_def_t width_arg = ARG_DEF("w", "width", 1, "source width");
52 static const arg_def_t height_arg = ARG_DEF("h", "height", 1, "source height");
53 static const arg_def_t timebase_arg =
54 ARG_DEF("t", "timebase", 1, "timebase (num/den)");
55 static const arg_def_t bitrate_arg = ARG_DEF(
56 "b", "target-bitrate", 1, "encoding bitrate, in kilobits per second");
57 static const arg_def_t spatial_layers_arg =
58 ARG_DEF("sl", "spatial-layers", 1, "number of spatial SVC layers");
59 static const arg_def_t temporal_layers_arg =
60 ARG_DEF("tl", "temporal-layers", 1, "number of temporal SVC layers");
61 static const arg_def_t temporal_layering_mode_arg =
62 ARG_DEF("tlm", "temporal-layering-mode", 1,
63 "temporal layering scheme."
64 "VP9E_TEMPORAL_LAYERING_MODE");
65 static const arg_def_t kf_dist_arg =
66 ARG_DEF("k", "kf-dist", 1, "number of frames between keyframes");
67 static const arg_def_t scale_factors_arg =
68 ARG_DEF("r", "scale-factors", 1, "scale factors (lowest to highest layer)");
69 static const arg_def_t passes_arg =
70 ARG_DEF("p", "passes", 1, "Number of passes (1/2)");
71 static const arg_def_t pass_arg =
72 ARG_DEF(NULL, "pass", 1, "Pass to execute (1/2)");
73 static const arg_def_t fpf_name_arg =
74 ARG_DEF(NULL, "fpf", 1, "First pass statistics file name");
75 static const arg_def_t min_q_arg =
76 ARG_DEF(NULL, "min-q", 1, "Minimum quantizer");
77 static const arg_def_t max_q_arg =
78 ARG_DEF(NULL, "max-q", 1, "Maximum quantizer");
79 static const arg_def_t min_bitrate_arg =
80 ARG_DEF(NULL, "min-bitrate", 1, "Minimum bitrate");
81 static const arg_def_t max_bitrate_arg =
82 ARG_DEF(NULL, "max-bitrate", 1, "Maximum bitrate");
83 static const arg_def_t lag_in_frame_arg =
84 ARG_DEF(NULL, "lag-in-frames", 1,
85 "Number of frame to input before "
86 "generating any outputs");
87 static const arg_def_t rc_end_usage_arg =
88 ARG_DEF(NULL, "rc-end-usage", 1, "0 - 3: VBR, CBR, CQ, Q");
89 static const arg_def_t speed_arg =
90 ARG_DEF("sp", "speed", 1, "speed configuration");
91 static const arg_def_t aqmode_arg =
92 ARG_DEF("aq", "aqmode", 1, "aq-mode off/on");
93 static const arg_def_t bitrates_arg =
94 ARG_DEF("bl", "bitrates", 1, "bitrates[sl * num_tl + tl]");
95 static const arg_def_t dropframe_thresh_arg =
96 ARG_DEF(NULL, "drop-frame", 1, "Temporal resampling threshold (buf %)");
97 static const struct arg_enum_list tune_content_enum[] = {
98 { "default", VP9E_CONTENT_DEFAULT },
99 { "screen", VP9E_CONTENT_SCREEN },
100 { "film", VP9E_CONTENT_FILM },
101 { NULL, 0 }
102 };
103
104 static const arg_def_t tune_content_arg = ARG_DEF_ENUM(
105 NULL, "tune-content", 1, "Tune content type", tune_content_enum);
106 static const arg_def_t inter_layer_pred_arg = ARG_DEF(
107 NULL, "inter-layer-pred", 1, "0 - 3: On, Off, Key-frames, Constrained");
108
109 #if CONFIG_VP9_HIGHBITDEPTH
110 static const struct arg_enum_list bitdepth_enum[] = {
111 { "8", VPX_BITS_8 }, { "10", VPX_BITS_10 }, { "12", VPX_BITS_12 }, { NULL, 0 }
112 };
113
114 static const arg_def_t bitdepth_arg = ARG_DEF_ENUM(
115 "d", "bit-depth", 1, "Bit depth for codec 8, 10 or 12. ", bitdepth_enum);
116 #endif // CONFIG_VP9_HIGHBITDEPTH
117
118 static const arg_def_t *svc_args[] = { &frames_arg,
119 &outputfile,
120 &width_arg,
121 &height_arg,
122 &timebase_arg,
123 &bitrate_arg,
124 &skip_frames_arg,
125 &spatial_layers_arg,
126 &kf_dist_arg,
127 &scale_factors_arg,
128 &passes_arg,
129 &pass_arg,
130 &fpf_name_arg,
131 &min_q_arg,
132 &max_q_arg,
133 &min_bitrate_arg,
134 &max_bitrate_arg,
135 &temporal_layers_arg,
136 &temporal_layering_mode_arg,
137 &lag_in_frame_arg,
138 &threads_arg,
139 &aqmode_arg,
140 #if OUTPUT_RC_STATS
141 &output_rc_stats_arg,
142 #endif
143
144 #if CONFIG_VP9_HIGHBITDEPTH
145 &bitdepth_arg,
146 #endif
147 &speed_arg,
148 &rc_end_usage_arg,
149 &bitrates_arg,
150 &dropframe_thresh_arg,
151 &tune_content_arg,
152 &inter_layer_pred_arg,
153 NULL };
154
155 static const uint32_t default_frames_to_skip = 0;
156 static const uint32_t default_frames_to_code = 60 * 60;
157 static const uint32_t default_width = 1920;
158 static const uint32_t default_height = 1080;
159 static const uint32_t default_timebase_num = 1;
160 static const uint32_t default_timebase_den = 60;
161 static const uint32_t default_bitrate = 1000;
162 static const uint32_t default_spatial_layers = 5;
163 static const uint32_t default_temporal_layers = 1;
164 static const uint32_t default_kf_dist = 100;
165 static const uint32_t default_temporal_layering_mode = 0;
166 static const uint32_t default_output_rc_stats = 0;
167 static const int32_t default_speed = -1; // -1 means use library default.
168 static const uint32_t default_threads = 0; // zero means use library default.
169
170 typedef struct {
171 const char *output_filename;
172 uint32_t frames_to_code;
173 uint32_t frames_to_skip;
174 struct VpxInputContext input_ctx;
175 stats_io_t rc_stats;
176 int passes;
177 int pass;
178 int tune_content;
179 int inter_layer_pred;
180 } AppInput;
181
182 static const char *exec_name;
183
184 void usage_exit(void) {
185 fprintf(stderr, "Usage: %s <options> input_filename -o output_filename\n",
186 exec_name);
187 fprintf(stderr, "Options:\n");
188 arg_show_usage(stderr, svc_args);
189 exit(EXIT_FAILURE);
190 }
191
192 static void parse_command_line(int argc, const char **argv_,
193 AppInput *app_input, SvcContext *svc_ctx,
194 vpx_codec_enc_cfg_t *enc_cfg) {
195 struct arg arg;
196 char **argv = NULL;
197 char **argi = NULL;
198 char **argj = NULL;
199 vpx_codec_err_t res;
200 int passes = 0;
201 int pass = 0;
202 const char *fpf_file_name = NULL;
203 unsigned int min_bitrate = 0;
204 unsigned int max_bitrate = 0;
205 char string_options[1024] = { 0 };
206
207 // initialize SvcContext with parameters that will be passed to vpx_svc_init
208 svc_ctx->log_level = SVC_LOG_DEBUG;
209 svc_ctx->spatial_layers = default_spatial_layers;
210 svc_ctx->temporal_layers = default_temporal_layers;
211 svc_ctx->temporal_layering_mode = default_temporal_layering_mode;
212 #if OUTPUT_RC_STATS
213 svc_ctx->output_rc_stat = default_output_rc_stats;
214 #endif
215 svc_ctx->speed = default_speed;
216 svc_ctx->threads = default_threads;
217
218 // start with default encoder configuration
219 res = vpx_codec_enc_config_default(vpx_codec_vp9_cx(), enc_cfg, 0);
220 if (res) {
221 die("Failed to get config: %s\n", vpx_codec_err_to_string(res));
222 }
223 // update enc_cfg with app default values
224 enc_cfg->g_w = default_width;
225 enc_cfg->g_h = default_height;
226 enc_cfg->g_timebase.num = default_timebase_num;
227 enc_cfg->g_timebase.den = default_timebase_den;
228 enc_cfg->rc_target_bitrate = default_bitrate;
229 enc_cfg->kf_min_dist = default_kf_dist;
230 enc_cfg->kf_max_dist = default_kf_dist;
231 enc_cfg->rc_end_usage = VPX_CQ;
232
233 // initialize AppInput with default values
234 app_input->frames_to_code = default_frames_to_code;
235 app_input->frames_to_skip = default_frames_to_skip;
236
237 // process command line options
238 argv = argv_dup(argc - 1, argv_ + 1);
239 for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
240 arg.argv_step = 1;
241
242 if (arg_match(&arg, &frames_arg, argi)) {
243 app_input->frames_to_code = arg_parse_uint(&arg);
244 } else if (arg_match(&arg, &outputfile, argi)) {
245 app_input->output_filename = arg.val;
246 } else if (arg_match(&arg, &width_arg, argi)) {
247 enc_cfg->g_w = arg_parse_uint(&arg);
248 } else if (arg_match(&arg, &height_arg, argi)) {
249 enc_cfg->g_h = arg_parse_uint(&arg);
250 } else if (arg_match(&arg, &timebase_arg, argi)) {
251 enc_cfg->g_timebase = arg_parse_rational(&arg);
252 } else if (arg_match(&arg, &bitrate_arg, argi)) {
253 enc_cfg->rc_target_bitrate = arg_parse_uint(&arg);
254 } else if (arg_match(&arg, &skip_frames_arg, argi)) {
255 app_input->frames_to_skip = arg_parse_uint(&arg);
256 } else if (arg_match(&arg, &spatial_layers_arg, argi)) {
257 svc_ctx->spatial_layers = arg_parse_uint(&arg);
258 } else if (arg_match(&arg, &temporal_layers_arg, argi)) {
259 svc_ctx->temporal_layers = arg_parse_uint(&arg);
260 #if OUTPUT_RC_STATS
261 } else if (arg_match(&arg, &output_rc_stats_arg, argi)) {
262 svc_ctx->output_rc_stat = arg_parse_uint(&arg);
263 #endif
264 } else if (arg_match(&arg, &speed_arg, argi)) {
265 svc_ctx->speed = arg_parse_uint(&arg);
266 if (svc_ctx->speed > 9) {
267 warn("Mapping speed %d to speed 9.\n", svc_ctx->speed);
268 }
269 } else if (arg_match(&arg, &aqmode_arg, argi)) {
270 svc_ctx->aqmode = arg_parse_uint(&arg);
271 } else if (arg_match(&arg, &threads_arg, argi)) {
272 svc_ctx->threads = arg_parse_uint(&arg);
273 } else if (arg_match(&arg, &temporal_layering_mode_arg, argi)) {
274 svc_ctx->temporal_layering_mode = enc_cfg->temporal_layering_mode =
275 arg_parse_int(&arg);
276 if (svc_ctx->temporal_layering_mode) {
277 enc_cfg->g_error_resilient = 1;
278 }
279 } else if (arg_match(&arg, &kf_dist_arg, argi)) {
280 enc_cfg->kf_min_dist = arg_parse_uint(&arg);
281 enc_cfg->kf_max_dist = enc_cfg->kf_min_dist;
282 } else if (arg_match(&arg, &scale_factors_arg, argi)) {
283 strncat(string_options, " scale-factors=",
284 sizeof(string_options) - strlen(string_options) - 1);
285 strncat(string_options, arg.val,
286 sizeof(string_options) - strlen(string_options) - 1);
287 } else if (arg_match(&arg, &bitrates_arg, argi)) {
288 strncat(string_options, " bitrates=",
289 sizeof(string_options) - strlen(string_options) - 1);
290 strncat(string_options, arg.val,
291 sizeof(string_options) - strlen(string_options) - 1);
292 } else if (arg_match(&arg, &passes_arg, argi)) {
293 passes = arg_parse_uint(&arg);
294 if (passes < 1 || passes > 2) {
295 die("Error: Invalid number of passes (%d)\n", passes);
296 }
297 } else if (arg_match(&arg, &pass_arg, argi)) {
298 pass = arg_parse_uint(&arg);
299 if (pass < 1 || pass > 2) {
300 die("Error: Invalid pass selected (%d)\n", pass);
301 }
302 } else if (arg_match(&arg, &fpf_name_arg, argi)) {
303 fpf_file_name = arg.val;
304 } else if (arg_match(&arg, &min_q_arg, argi)) {
305 strncat(string_options, " min-quantizers=",
306 sizeof(string_options) - strlen(string_options) - 1);
307 strncat(string_options, arg.val,
308 sizeof(string_options) - strlen(string_options) - 1);
309 } else if (arg_match(&arg, &max_q_arg, argi)) {
310 strncat(string_options, " max-quantizers=",
311 sizeof(string_options) - strlen(string_options) - 1);
312 strncat(string_options, arg.val,
313 sizeof(string_options) - strlen(string_options) - 1);
314 } else if (arg_match(&arg, &min_bitrate_arg, argi)) {
315 min_bitrate = arg_parse_uint(&arg);
316 } else if (arg_match(&arg, &max_bitrate_arg, argi)) {
317 max_bitrate = arg_parse_uint(&arg);
318 } else if (arg_match(&arg, &lag_in_frame_arg, argi)) {
319 enc_cfg->g_lag_in_frames = arg_parse_uint(&arg);
320 } else if (arg_match(&arg, &rc_end_usage_arg, argi)) {
321 enc_cfg->rc_end_usage = arg_parse_uint(&arg);
322 #if CONFIG_VP9_HIGHBITDEPTH
323 } else if (arg_match(&arg, &bitdepth_arg, argi)) {
324 enc_cfg->g_bit_depth = arg_parse_enum_or_int(&arg);
325 switch (enc_cfg->g_bit_depth) {
326 case VPX_BITS_8:
327 enc_cfg->g_input_bit_depth = 8;
328 enc_cfg->g_profile = 0;
329 break;
330 case VPX_BITS_10:
331 enc_cfg->g_input_bit_depth = 10;
332 enc_cfg->g_profile = 2;
333 break;
334 case VPX_BITS_12:
335 enc_cfg->g_input_bit_depth = 12;
336 enc_cfg->g_profile = 2;
337 break;
338 default:
339 die("Error: Invalid bit depth selected (%d)\n", enc_cfg->g_bit_depth);
340 break;
341 }
342 #endif // CONFIG_VP9_HIGHBITDEPTH
343 } else if (arg_match(&arg, &dropframe_thresh_arg, argi)) {
344 enc_cfg->rc_dropframe_thresh = arg_parse_uint(&arg);
345 } else if (arg_match(&arg, &tune_content_arg, argi)) {
346 app_input->tune_content = arg_parse_uint(&arg);
347 } else if (arg_match(&arg, &inter_layer_pred_arg, argi)) {
348 app_input->inter_layer_pred = arg_parse_uint(&arg);
349 } else {
350 ++argj;
351 }
352 }
353
354 // There will be a space in front of the string options
355 if (strlen(string_options) > 0)
356 vpx_svc_set_options(svc_ctx, string_options + 1);
357
358 if (passes == 0 || passes == 1) {
359 if (pass) {
360 fprintf(stderr, "pass is ignored since there's only one pass\n");
361 }
362 enc_cfg->g_pass = VPX_RC_ONE_PASS;
363 } else {
364 if (pass == 0) {
365 die("pass must be specified when passes is 2\n");
366 }
367
368 if (fpf_file_name == NULL) {
369 die("fpf must be specified when passes is 2\n");
370 }
371
372 if (pass == 1) {
373 enc_cfg->g_pass = VPX_RC_FIRST_PASS;
374 if (!stats_open_file(&app_input->rc_stats, fpf_file_name, 0)) {
375 fatal("Failed to open statistics store");
376 }
377 } else {
378 enc_cfg->g_pass = VPX_RC_LAST_PASS;
379 if (!stats_open_file(&app_input->rc_stats, fpf_file_name, 1)) {
380 fatal("Failed to open statistics store");
381 }
382 enc_cfg->rc_twopass_stats_in = stats_get(&app_input->rc_stats);
383 }
384 app_input->passes = passes;
385 app_input->pass = pass;
386 }
387
388 if (enc_cfg->rc_target_bitrate > 0) {
389 if (min_bitrate > 0) {
390 enc_cfg->rc_2pass_vbr_minsection_pct =
391 min_bitrate * 100 / enc_cfg->rc_target_bitrate;
392 }
393 if (max_bitrate > 0) {
394 enc_cfg->rc_2pass_vbr_maxsection_pct =
395 max_bitrate * 100 / enc_cfg->rc_target_bitrate;
396 }
397 }
398
399 // Check for unrecognized options
400 for (argi = argv; *argi; ++argi)
401 if (argi[0][0] == '-' && strlen(argi[0]) > 1)
402 die("Error: Unrecognized option %s\n", *argi);
403
404 if (argv[0] == NULL) {
405 usage_exit();
406 }
407 app_input->input_ctx.filename = argv[0];
408 free(argv);
409
410 open_input_file(&app_input->input_ctx);
411 if (app_input->input_ctx.file_type == FILE_TYPE_Y4M) {
412 enc_cfg->g_w = app_input->input_ctx.width;
413 enc_cfg->g_h = app_input->input_ctx.height;
414 }
415
416 if (enc_cfg->g_w < 16 || enc_cfg->g_w % 2 || enc_cfg->g_h < 16 ||
417 enc_cfg->g_h % 2)
418 die("Invalid resolution: %d x %d\n", enc_cfg->g_w, enc_cfg->g_h);
419
420 printf(
421 "Codec %s\nframes: %d, skip: %d\n"
422 "layers: %d\n"
423 "width %d, height: %d,\n"
424 "num: %d, den: %d, bitrate: %d,\n"
425 "gop size: %d\n",
426 vpx_codec_iface_name(vpx_codec_vp9_cx()), app_input->frames_to_code,
427 app_input->frames_to_skip, svc_ctx->spatial_layers, enc_cfg->g_w,
428 enc_cfg->g_h, enc_cfg->g_timebase.num, enc_cfg->g_timebase.den,
429 enc_cfg->rc_target_bitrate, enc_cfg->kf_max_dist);
430 }
431
432 #if OUTPUT_RC_STATS
433 // For rate control encoding stats.
434 struct RateControlStats {
435 // Number of input frames per layer.
436 int layer_input_frames[VPX_MAX_LAYERS];
437 // Total (cumulative) number of encoded frames per layer.
438 int layer_tot_enc_frames[VPX_MAX_LAYERS];
439 // Number of encoded non-key frames per layer.
440 int layer_enc_frames[VPX_MAX_LAYERS];
441 // Framerate per layer (cumulative).
442 double layer_framerate[VPX_MAX_LAYERS];
443 // Target average frame size per layer (per-frame-bandwidth per layer).
444 double layer_pfb[VPX_MAX_LAYERS];
445 // Actual average frame size per layer.
446 double layer_avg_frame_size[VPX_MAX_LAYERS];
447 // Average rate mismatch per layer (|target - actual| / target).
448 double layer_avg_rate_mismatch[VPX_MAX_LAYERS];
449 // Actual encoding bitrate per layer (cumulative).
450 double layer_encoding_bitrate[VPX_MAX_LAYERS];
451 // Average of the short-time encoder actual bitrate.
452 // TODO(marpan): Should we add these short-time stats for each layer?
453 double avg_st_encoding_bitrate;
454 // Variance of the short-time encoder actual bitrate.
455 double variance_st_encoding_bitrate;
456 // Window (number of frames) for computing short-time encoding bitrate.
457 int window_size;
458 // Number of window measurements.
459 int window_count;
460 };
461
462 // Note: these rate control stats assume only 1 key frame in the
463 // sequence (i.e., first frame only).
464 static void set_rate_control_stats(struct RateControlStats *rc,
465 vpx_codec_enc_cfg_t *cfg) {
466 unsigned int sl, tl;
467 // Set the layer (cumulative) framerate and the target layer (non-cumulative)
468 // per-frame-bandwidth, for the rate control encoding stats below.
469 const double framerate = cfg->g_timebase.den / cfg->g_timebase.num;
470
471 for (sl = 0; sl < cfg->ss_number_layers; ++sl) {
472 for (tl = 0; tl < cfg->ts_number_layers; ++tl) {
473 const int layer = sl * cfg->ts_number_layers + tl;
474 if (cfg->ts_number_layers == 1)
475 rc->layer_framerate[layer] = framerate;
476 else
477 rc->layer_framerate[layer] = framerate / cfg->ts_rate_decimator[tl];
478 if (tl > 0) {
479 rc->layer_pfb[layer] =
480 1000.0 *
481 (cfg->layer_target_bitrate[layer] -
482 cfg->layer_target_bitrate[layer - 1]) /
483 (rc->layer_framerate[layer] - rc->layer_framerate[layer - 1]);
484 } else {
485 rc->layer_pfb[layer] = 1000.0 * cfg->layer_target_bitrate[layer] /
486 rc->layer_framerate[layer];
487 }
488 rc->layer_input_frames[layer] = 0;
489 rc->layer_enc_frames[layer] = 0;
490 rc->layer_tot_enc_frames[layer] = 0;
491 rc->layer_encoding_bitrate[layer] = 0.0;
492 rc->layer_avg_frame_size[layer] = 0.0;
493 rc->layer_avg_rate_mismatch[layer] = 0.0;
494 }
495 }
496 rc->window_count = 0;
497 rc->window_size = 15;
498 rc->avg_st_encoding_bitrate = 0.0;
499 rc->variance_st_encoding_bitrate = 0.0;
500 }
501
502 static void printout_rate_control_summary(struct RateControlStats *rc,
503 vpx_codec_enc_cfg_t *cfg,
504 int frame_cnt) {
505 unsigned int sl, tl;
506 double perc_fluctuation = 0.0;
507 int tot_num_frames = 0;
508 printf("Total number of processed frames: %d\n\n", frame_cnt - 1);
509 printf("Rate control layer stats for sl%d tl%d layer(s):\n\n",
510 cfg->ss_number_layers, cfg->ts_number_layers);
511 for (sl = 0; sl < cfg->ss_number_layers; ++sl) {
512 tot_num_frames = 0;
513 for (tl = 0; tl < cfg->ts_number_layers; ++tl) {
514 const int layer = sl * cfg->ts_number_layers + tl;
515 const int num_dropped =
516 (tl > 0)
517 ? (rc->layer_input_frames[layer] - rc->layer_enc_frames[layer])
518 : (rc->layer_input_frames[layer] - rc->layer_enc_frames[layer] -
519 1);
520 tot_num_frames += rc->layer_input_frames[layer];
521 rc->layer_encoding_bitrate[layer] = 0.001 * rc->layer_framerate[layer] *
522 rc->layer_encoding_bitrate[layer] /
523 tot_num_frames;
524 rc->layer_avg_frame_size[layer] =
525 rc->layer_avg_frame_size[layer] / rc->layer_enc_frames[layer];
526 rc->layer_avg_rate_mismatch[layer] = 100.0 *
527 rc->layer_avg_rate_mismatch[layer] /
528 rc->layer_enc_frames[layer];
529 printf("For layer#: sl%d tl%d \n", sl, tl);
530 printf("Bitrate (target vs actual): %d %f.0 kbps\n",
531 cfg->layer_target_bitrate[layer],
532 rc->layer_encoding_bitrate[layer]);
533 printf("Average frame size (target vs actual): %f %f bits\n",
534 rc->layer_pfb[layer], rc->layer_avg_frame_size[layer]);
535 printf("Average rate_mismatch: %f\n", rc->layer_avg_rate_mismatch[layer]);
536 printf(
537 "Number of input frames, encoded (non-key) frames, "
538 "and percent dropped frames: %d %d %f.0 \n",
539 rc->layer_input_frames[layer], rc->layer_enc_frames[layer],
540 100.0 * num_dropped / rc->layer_input_frames[layer]);
541 printf("\n");
542 }
543 }
544 rc->avg_st_encoding_bitrate = rc->avg_st_encoding_bitrate / rc->window_count;
545 rc->variance_st_encoding_bitrate =
546 rc->variance_st_encoding_bitrate / rc->window_count -
547 (rc->avg_st_encoding_bitrate * rc->avg_st_encoding_bitrate);
548 perc_fluctuation = 100.0 * sqrt(rc->variance_st_encoding_bitrate) /
549 rc->avg_st_encoding_bitrate;
550 printf("Short-time stats, for window of %d frames: \n", rc->window_size);
551 printf("Average, rms-variance, and percent-fluct: %f %f %f \n",
552 rc->avg_st_encoding_bitrate, sqrt(rc->variance_st_encoding_bitrate),
553 perc_fluctuation);
554 printf("Num of input, num of encoded (super) frames: %d %d \n", frame_cnt,
555 tot_num_frames);
556 }
557
558 static vpx_codec_err_t parse_superframe_index(const uint8_t *data,
559 size_t data_sz, uint64_t sizes[8],
560 int *count) {
561 // A chunk ending with a byte matching 0xc0 is an invalid chunk unless
562 // it is a super frame index. If the last byte of real video compression
563 // data is 0xc0 the encoder must add a 0 byte. If we have the marker but
564 // not the associated matching marker byte at the front of the index we have
565 // an invalid bitstream and need to return an error.
566
567 uint8_t marker;
568
569 marker = *(data + data_sz - 1);
570 *count = 0;
571
572 if ((marker & 0xe0) == 0xc0) {
573 const uint32_t frames = (marker & 0x7) + 1;
574 const uint32_t mag = ((marker >> 3) & 0x3) + 1;
575 const size_t index_sz = 2 + mag * frames;
576
577 // This chunk is marked as having a superframe index but doesn't have
578 // enough data for it, thus it's an invalid superframe index.
579 if (data_sz < index_sz) return VPX_CODEC_CORRUPT_FRAME;
580
581 {
582 const uint8_t marker2 = *(data + data_sz - index_sz);
583
584 // This chunk is marked as having a superframe index but doesn't have
585 // the matching marker byte at the front of the index therefore it's an
586 // invalid chunk.
587 if (marker != marker2) return VPX_CODEC_CORRUPT_FRAME;
588 }
589
590 {
591 // Found a valid superframe index.
592 uint32_t i, j;
593 const uint8_t *x = &data[data_sz - index_sz + 1];
594
595 for (i = 0; i < frames; ++i) {
596 uint32_t this_sz = 0;
597
598 for (j = 0; j < mag; ++j) this_sz |= (*x++) << (j * 8);
599 sizes[i] = this_sz;
600 }
601 *count = frames;
602 }
603 }
604 return VPX_CODEC_OK;
605 }
606 #endif
607
608 // Example pattern for spatial layers and 2 temporal layers used in the
609 // bypass/flexible mode. The pattern corresponds to the pattern
610 // VP9E_TEMPORAL_LAYERING_MODE_0101 (temporal_layering_mode == 2) used in
611 // non-flexible mode.
612 static void set_frame_flags_bypass_mode_ex0(
613 int tl, int num_spatial_layers, int is_key_frame,
614 vpx_svc_ref_frame_config_t *ref_frame_config) {
615 int sl;
616 for (sl = 0; sl < num_spatial_layers; ++sl)
617 ref_frame_config->update_buffer_slot[sl] = 0;
618
619 for (sl = 0; sl < num_spatial_layers; ++sl) {
620 // Set the buffer idx.
621 if (tl == 0) {
622 ref_frame_config->lst_fb_idx[sl] = sl;
623 if (sl) {
624 if (is_key_frame) {
625 ref_frame_config->lst_fb_idx[sl] = sl - 1;
626 ref_frame_config->gld_fb_idx[sl] = sl;
627 } else {
628 ref_frame_config->gld_fb_idx[sl] = sl - 1;
629 }
630 } else {
631 ref_frame_config->gld_fb_idx[sl] = 0;
632 }
633 ref_frame_config->alt_fb_idx[sl] = 0;
634 } else if (tl == 1) {
635 ref_frame_config->lst_fb_idx[sl] = sl;
636 ref_frame_config->gld_fb_idx[sl] = num_spatial_layers + sl - 1;
637 ref_frame_config->alt_fb_idx[sl] = num_spatial_layers + sl;
638 }
639 // Set the reference and update flags.
640 if (!tl) {
641 if (!sl) {
642 // Base spatial and base temporal (sl = 0, tl = 0)
643 ref_frame_config->reference_last[sl] = 1;
644 ref_frame_config->reference_golden[sl] = 0;
645 ref_frame_config->reference_alt_ref[sl] = 0;
646 ref_frame_config->update_buffer_slot[sl] |=
647 1 << ref_frame_config->lst_fb_idx[sl];
648 } else {
649 if (is_key_frame) {
650 ref_frame_config->reference_last[sl] = 1;
651 ref_frame_config->reference_golden[sl] = 0;
652 ref_frame_config->reference_alt_ref[sl] = 0;
653 ref_frame_config->update_buffer_slot[sl] |=
654 1 << ref_frame_config->gld_fb_idx[sl];
655 } else {
656 // Non-zero spatiall layer.
657 ref_frame_config->reference_last[sl] = 1;
658 ref_frame_config->reference_golden[sl] = 1;
659 ref_frame_config->reference_alt_ref[sl] = 1;
660 ref_frame_config->update_buffer_slot[sl] |=
661 1 << ref_frame_config->lst_fb_idx[sl];
662 }
663 }
664 } else if (tl == 1) {
665 if (!sl) {
666 // Base spatial and top temporal (tl = 1)
667 ref_frame_config->reference_last[sl] = 1;
668 ref_frame_config->reference_golden[sl] = 0;
669 ref_frame_config->reference_alt_ref[sl] = 0;
670 ref_frame_config->update_buffer_slot[sl] |=
671 1 << ref_frame_config->alt_fb_idx[sl];
672 } else {
673 // Non-zero spatial.
674 if (sl < num_spatial_layers - 1) {
675 ref_frame_config->reference_last[sl] = 1;
676 ref_frame_config->reference_golden[sl] = 1;
677 ref_frame_config->reference_alt_ref[sl] = 0;
678 ref_frame_config->update_buffer_slot[sl] |=
679 1 << ref_frame_config->alt_fb_idx[sl];
680 } else if (sl == num_spatial_layers - 1) {
681 // Top spatial and top temporal (non-reference -- doesn't update any
682 // reference buffers)
683 ref_frame_config->reference_last[sl] = 1;
684 ref_frame_config->reference_golden[sl] = 1;
685 ref_frame_config->reference_alt_ref[sl] = 0;
686 }
687 }
688 }
689 }
690 }
691
692 // Example pattern for 2 spatial layers and 2 temporal layers used in the
693 // bypass/flexible mode, except only 1 spatial layer when temporal_layer_id = 1.
694 static void set_frame_flags_bypass_mode_ex1(
695 int tl, int num_spatial_layers, int is_key_frame,
696 vpx_svc_ref_frame_config_t *ref_frame_config) {
697 int sl;
698 for (sl = 0; sl < num_spatial_layers; ++sl)
699 ref_frame_config->update_buffer_slot[sl] = 0;
700
701 if (tl == 0) {
702 if (is_key_frame) {
703 ref_frame_config->lst_fb_idx[1] = 0;
704 ref_frame_config->gld_fb_idx[1] = 1;
705 } else {
706 ref_frame_config->lst_fb_idx[1] = 1;
707 ref_frame_config->gld_fb_idx[1] = 0;
708 }
709 ref_frame_config->alt_fb_idx[1] = 0;
710
711 ref_frame_config->lst_fb_idx[0] = 0;
712 ref_frame_config->gld_fb_idx[0] = 0;
713 ref_frame_config->alt_fb_idx[0] = 0;
714 }
715 if (tl == 1) {
716 ref_frame_config->lst_fb_idx[0] = 0;
717 ref_frame_config->gld_fb_idx[0] = 1;
718 ref_frame_config->alt_fb_idx[0] = 2;
719
720 ref_frame_config->lst_fb_idx[1] = 1;
721 ref_frame_config->gld_fb_idx[1] = 2;
722 ref_frame_config->alt_fb_idx[1] = 3;
723 }
724 // Set the reference and update flags.
725 if (tl == 0) {
726 // Base spatial and base temporal (sl = 0, tl = 0)
727 ref_frame_config->reference_last[0] = 1;
728 ref_frame_config->reference_golden[0] = 0;
729 ref_frame_config->reference_alt_ref[0] = 0;
730 ref_frame_config->update_buffer_slot[0] |=
731 1 << ref_frame_config->lst_fb_idx[0];
732
733 if (is_key_frame) {
734 ref_frame_config->reference_last[1] = 1;
735 ref_frame_config->reference_golden[1] = 0;
736 ref_frame_config->reference_alt_ref[1] = 0;
737 ref_frame_config->update_buffer_slot[1] |=
738 1 << ref_frame_config->gld_fb_idx[1];
739 } else {
740 // Non-zero spatiall layer.
741 ref_frame_config->reference_last[1] = 1;
742 ref_frame_config->reference_golden[1] = 1;
743 ref_frame_config->reference_alt_ref[1] = 1;
744 ref_frame_config->update_buffer_slot[1] |=
745 1 << ref_frame_config->lst_fb_idx[1];
746 }
747 }
748 if (tl == 1) {
749 // Top spatial and top temporal (non-reference -- doesn't update any
750 // reference buffers)
751 ref_frame_config->reference_last[1] = 1;
752 ref_frame_config->reference_golden[1] = 0;
753 ref_frame_config->reference_alt_ref[1] = 0;
754 }
755 }
756
757 #if CONFIG_VP9_DECODER && !SIMULCAST_MODE
758 static void test_decode(vpx_codec_ctx_t *encoder, vpx_codec_ctx_t *decoder,
759 const int frames_out, int *mismatch_seen) {
760 vpx_image_t enc_img, dec_img;
761 struct vp9_ref_frame ref_enc, ref_dec;
762 if (*mismatch_seen) return;
763 /* Get the internal reference frame */
764 ref_enc.idx = 0;
765 ref_dec.idx = 0;
766 vpx_codec_control(encoder, VP9_GET_REFERENCE, &ref_enc);
767 enc_img = ref_enc.img;
768 vpx_codec_control(decoder, VP9_GET_REFERENCE, &ref_dec);
769 dec_img = ref_dec.img;
770 #if CONFIG_VP9_HIGHBITDEPTH
771 if ((enc_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) !=
772 (dec_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH)) {
773 if (enc_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) {
774 vpx_img_alloc(&enc_img, enc_img.fmt - VPX_IMG_FMT_HIGHBITDEPTH,
775 enc_img.d_w, enc_img.d_h, 16);
776 vpx_img_truncate_16_to_8(&enc_img, &ref_enc.img);
777 }
778 if (dec_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) {
779 vpx_img_alloc(&dec_img, dec_img.fmt - VPX_IMG_FMT_HIGHBITDEPTH,
780 dec_img.d_w, dec_img.d_h, 16);
781 vpx_img_truncate_16_to_8(&dec_img, &ref_dec.img);
782 }
783 }
784 #endif
785
786 if (!compare_img(&enc_img, &dec_img)) {
787 int y[4], u[4], v[4];
788 #if CONFIG_VP9_HIGHBITDEPTH
789 if (enc_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) {
790 find_mismatch_high(&enc_img, &dec_img, y, u, v);
791 } else {
792 find_mismatch(&enc_img, &dec_img, y, u, v);
793 }
794 #else
795 find_mismatch(&enc_img, &dec_img, y, u, v);
796 #endif
797 decoder->err = 1;
798 printf(
799 "Encode/decode mismatch on frame %d at"
800 " Y[%d, %d] {%d/%d},"
801 " U[%d, %d] {%d/%d},"
802 " V[%d, %d] {%d/%d}\n",
803 frames_out, y[0], y[1], y[2], y[3], u[0], u[1], u[2], u[3], v[0], v[1],
804 v[2], v[3]);
805 *mismatch_seen = frames_out;
806 }
807
808 vpx_img_free(&enc_img);
809 vpx_img_free(&dec_img);
810 }
811 #endif
812
813 #if OUTPUT_RC_STATS
814 static void svc_output_rc_stats(
815 vpx_codec_ctx_t *codec, vpx_codec_enc_cfg_t *enc_cfg,
816 vpx_svc_layer_id_t *layer_id, const vpx_codec_cx_pkt_t *cx_pkt,
817 struct RateControlStats *rc, VpxVideoWriter **outfile,
818 const uint32_t frame_cnt, const double framerate) {
819 int num_layers_encoded = 0;
820 unsigned int sl, tl;
821 uint64_t sizes[8];
822 uint64_t sizes_parsed[8];
823 int count = 0;
824 double sum_bitrate = 0.0;
825 double sum_bitrate2 = 0.0;
826 vp9_zero(sizes);
827 vp9_zero(sizes_parsed);
828 vpx_codec_control(codec, VP9E_GET_SVC_LAYER_ID, layer_id);
829 parse_superframe_index(cx_pkt->data.frame.buf, cx_pkt->data.frame.sz,
830 sizes_parsed, &count);
831 if (enc_cfg->ss_number_layers == 1) sizes[0] = cx_pkt->data.frame.sz;
832 for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) {
833 sizes[sl] = 0;
834 if (cx_pkt->data.frame.spatial_layer_encoded[sl]) {
835 sizes[sl] = sizes_parsed[num_layers_encoded];
836 num_layers_encoded++;
837 }
838 }
839 for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) {
840 unsigned int sl2;
841 uint64_t tot_size = 0;
842 #if SIMULCAST_MODE
843 for (sl2 = 0; sl2 < sl; ++sl2) {
844 if (cx_pkt->data.frame.spatial_layer_encoded[sl2]) tot_size += sizes[sl2];
845 }
846 vpx_video_writer_write_frame(outfile[sl],
847 (uint8_t *)(cx_pkt->data.frame.buf) + tot_size,
848 (size_t)(sizes[sl]), cx_pkt->data.frame.pts);
849 #else
850 for (sl2 = 0; sl2 <= sl; ++sl2) {
851 if (cx_pkt->data.frame.spatial_layer_encoded[sl2]) tot_size += sizes[sl2];
852 }
853 if (tot_size > 0)
854 vpx_video_writer_write_frame(outfile[sl], cx_pkt->data.frame.buf,
855 (size_t)(tot_size), cx_pkt->data.frame.pts);
856 #endif // SIMULCAST_MODE
857 }
858 for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) {
859 if (cx_pkt->data.frame.spatial_layer_encoded[sl]) {
860 for (tl = layer_id->temporal_layer_id; tl < enc_cfg->ts_number_layers;
861 ++tl) {
862 const int layer = sl * enc_cfg->ts_number_layers + tl;
863 ++rc->layer_tot_enc_frames[layer];
864 rc->layer_encoding_bitrate[layer] += 8.0 * sizes[sl];
865 // Keep count of rate control stats per layer, for non-key
866 // frames.
867 if (tl == (unsigned int)layer_id->temporal_layer_id &&
868 !(cx_pkt->data.frame.flags & VPX_FRAME_IS_KEY)) {
869 rc->layer_avg_frame_size[layer] += 8.0 * sizes[sl];
870 rc->layer_avg_rate_mismatch[layer] +=
871 fabs(8.0 * sizes[sl] - rc->layer_pfb[layer]) /
872 rc->layer_pfb[layer];
873 ++rc->layer_enc_frames[layer];
874 }
875 }
876 }
877 }
878
879 // Update for short-time encoding bitrate states, for moving
880 // window of size rc->window, shifted by rc->window / 2.
881 // Ignore first window segment, due to key frame.
882 if (frame_cnt > (unsigned int)rc->window_size) {
883 for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) {
884 if (cx_pkt->data.frame.spatial_layer_encoded[sl])
885 sum_bitrate += 0.001 * 8.0 * sizes[sl] * framerate;
886 }
887 if (frame_cnt % rc->window_size == 0) {
888 rc->window_count += 1;
889 rc->avg_st_encoding_bitrate += sum_bitrate / rc->window_size;
890 rc->variance_st_encoding_bitrate +=
891 (sum_bitrate / rc->window_size) * (sum_bitrate / rc->window_size);
892 }
893 }
894
895 // Second shifted window.
896 if (frame_cnt > (unsigned int)(rc->window_size + rc->window_size / 2)) {
897 for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) {
898 sum_bitrate2 += 0.001 * 8.0 * sizes[sl] * framerate;
899 }
900
901 if (frame_cnt > (unsigned int)(2 * rc->window_size) &&
902 frame_cnt % rc->window_size == 0) {
903 rc->window_count += 1;
904 rc->avg_st_encoding_bitrate += sum_bitrate2 / rc->window_size;
905 rc->variance_st_encoding_bitrate +=
906 (sum_bitrate2 / rc->window_size) * (sum_bitrate2 / rc->window_size);
907 }
908 }
909 }
910 #endif
911
912 int main(int argc, const char **argv) {
913 AppInput app_input;
914 VpxVideoWriter *writer = NULL;
915 VpxVideoInfo info;
916 vpx_codec_ctx_t encoder;
917 vpx_codec_enc_cfg_t enc_cfg;
918 SvcContext svc_ctx;
919 vpx_svc_frame_drop_t svc_drop_frame;
920 uint32_t i;
921 uint32_t frame_cnt = 0;
922 vpx_image_t raw;
923 vpx_codec_err_t res;
924 int pts = 0; /* PTS starts at 0 */
925 int frame_duration = 1; /* 1 timebase tick per frame */
926 int end_of_stream = 0;
927 int frames_received = 0;
928 #if OUTPUT_RC_STATS
929 VpxVideoWriter *outfile[VPX_SS_MAX_LAYERS] = { NULL };
930 struct RateControlStats rc;
931 vpx_svc_layer_id_t layer_id;
932 vpx_svc_ref_frame_config_t ref_frame_config;
933 unsigned int sl;
934 double framerate = 30.0;
935 #endif
936 struct vpx_usec_timer timer;
937 int64_t cx_time = 0;
938 #if CONFIG_INTERNAL_STATS
939 FILE *f = fopen("opsnr.stt", "a");
940 #endif
941 #if CONFIG_VP9_DECODER && !SIMULCAST_MODE
942 int mismatch_seen = 0;
943 vpx_codec_ctx_t decoder;
944 #endif
945 memset(&svc_ctx, 0, sizeof(svc_ctx));
946 memset(&app_input, 0, sizeof(AppInput));
947 memset(&info, 0, sizeof(VpxVideoInfo));
948 memset(&layer_id, 0, sizeof(vpx_svc_layer_id_t));
949 memset(&rc, 0, sizeof(struct RateControlStats));
950 exec_name = argv[0];
951
952 /* Setup default input stream settings */
953 app_input.input_ctx.framerate.numerator = 30;
954 app_input.input_ctx.framerate.denominator = 1;
955 app_input.input_ctx.only_i420 = 1;
956 app_input.input_ctx.bit_depth = 0;
957
958 parse_command_line(argc, argv, &app_input, &svc_ctx, &enc_cfg);
959
960 // Y4M reader handles its own allocation.
961 if (app_input.input_ctx.file_type != FILE_TYPE_Y4M) {
962 // Allocate image buffer
963 #if CONFIG_VP9_HIGHBITDEPTH
964 if (!vpx_img_alloc(&raw,
965 enc_cfg.g_input_bit_depth == 8 ? VPX_IMG_FMT_I420
966 : VPX_IMG_FMT_I42016,
967 enc_cfg.g_w, enc_cfg.g_h, 32)) {
968 die("Failed to allocate image %dx%d\n", enc_cfg.g_w, enc_cfg.g_h);
969 }
970 #else
971 if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, enc_cfg.g_w, enc_cfg.g_h, 32)) {
972 die("Failed to allocate image %dx%d\n", enc_cfg.g_w, enc_cfg.g_h);
973 }
974 #endif // CONFIG_VP9_HIGHBITDEPTH
975 }
976
977 // Initialize codec
978 if (vpx_svc_init(&svc_ctx, &encoder, vpx_codec_vp9_cx(), &enc_cfg) !=
979 VPX_CODEC_OK)
980 die("Failed to initialize encoder\n");
981 #if CONFIG_VP9_DECODER && !SIMULCAST_MODE
982 if (vpx_codec_dec_init(
983 &decoder, get_vpx_decoder_by_name("vp9")->codec_interface(), NULL, 0))
984 die("Failed to initialize decoder\n");
985 #endif
986
987 #if OUTPUT_RC_STATS
988 rc.window_count = 1;
989 rc.window_size = 15; // Silence a static analysis warning.
990 rc.avg_st_encoding_bitrate = 0.0;
991 rc.variance_st_encoding_bitrate = 0.0;
992 if (svc_ctx.output_rc_stat) {
993 set_rate_control_stats(&rc, &enc_cfg);
994 framerate = enc_cfg.g_timebase.den / enc_cfg.g_timebase.num;
995 }
996 #endif
997
998 info.codec_fourcc = VP9_FOURCC;
999 info.frame_width = enc_cfg.g_w;
1000 info.frame_height = enc_cfg.g_h;
1001 info.time_base.numerator = enc_cfg.g_timebase.num;
1002 info.time_base.denominator = enc_cfg.g_timebase.den;
1003
1004 if (!(app_input.passes == 2 && app_input.pass == 1)) {
1005 // We don't save the bitstream for the 1st pass on two pass rate control
1006 writer =
1007 vpx_video_writer_open(app_input.output_filename, kContainerIVF, &info);
1008 if (!writer)
1009 die("Failed to open %s for writing\n", app_input.output_filename);
1010 }
1011 #if OUTPUT_RC_STATS
1012 // Write out spatial layer stream.
1013 // TODO(marpan/jianj): allow for writing each spatial and temporal stream.
1014 if (svc_ctx.output_rc_stat) {
1015 for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
1016 char file_name[PATH_MAX];
1017
1018 snprintf(file_name, sizeof(file_name), "%s_s%d.ivf",
1019 app_input.output_filename, sl);
1020 outfile[sl] = vpx_video_writer_open(file_name, kContainerIVF, &info);
1021 if (!outfile[sl]) die("Failed to open %s for writing", file_name);
1022 }
1023 }
1024 #endif
1025
1026 // skip initial frames
1027 for (i = 0; i < app_input.frames_to_skip; ++i)
1028 read_frame(&app_input.input_ctx, &raw);
1029
1030 if (svc_ctx.speed != -1)
1031 vpx_codec_control(&encoder, VP8E_SET_CPUUSED, svc_ctx.speed);
1032 if (svc_ctx.threads) {
1033 vpx_codec_control(&encoder, VP9E_SET_TILE_COLUMNS,
1034 get_msb(svc_ctx.threads));
1035 if (svc_ctx.threads > 1)
1036 vpx_codec_control(&encoder, VP9E_SET_ROW_MT, 1);
1037 else
1038 vpx_codec_control(&encoder, VP9E_SET_ROW_MT, 0);
1039 }
1040 if (svc_ctx.speed >= 5 && svc_ctx.aqmode == 1)
1041 vpx_codec_control(&encoder, VP9E_SET_AQ_MODE, 3);
1042 if (svc_ctx.speed >= 5)
1043 vpx_codec_control(&encoder, VP8E_SET_STATIC_THRESHOLD, 1);
1044 vpx_codec_control(&encoder, VP8E_SET_MAX_INTRA_BITRATE_PCT, 900);
1045
1046 vpx_codec_control(&encoder, VP9E_SET_SVC_INTER_LAYER_PRED,
1047 app_input.inter_layer_pred);
1048
1049 vpx_codec_control(&encoder, VP9E_SET_NOISE_SENSITIVITY, 0);
1050
1051 vpx_codec_control(&encoder, VP9E_SET_TUNE_CONTENT, app_input.tune_content);
1052
1053 svc_drop_frame.framedrop_mode = FULL_SUPERFRAME_DROP;
1054 for (sl = 0; sl < (unsigned int)svc_ctx.spatial_layers; ++sl)
1055 svc_drop_frame.framedrop_thresh[sl] = enc_cfg.rc_dropframe_thresh;
1056 svc_drop_frame.max_consec_drop = INT_MAX;
1057 vpx_codec_control(&encoder, VP9E_SET_SVC_FRAME_DROP_LAYER, &svc_drop_frame);
1058
1059 // Encode frames
1060 while (!end_of_stream) {
1061 vpx_codec_iter_t iter = NULL;
1062 const vpx_codec_cx_pkt_t *cx_pkt;
1063 // Example patterns for bypass/flexible mode:
1064 // example_pattern = 0: 2 temporal layers, and spatial_layers = 1,2,3. Exact
1065 // to fixed SVC patterns. example_pattern = 1: 2 spatial and 2 temporal
1066 // layers, with SL0 only has TL0, and SL1 has both TL0 and TL1. This example
1067 // uses the extended API.
1068 int example_pattern = 0;
1069 if (frame_cnt >= app_input.frames_to_code ||
1070 !read_frame(&app_input.input_ctx, &raw)) {
1071 // We need one extra vpx_svc_encode call at end of stream to flush
1072 // encoder and get remaining data
1073 end_of_stream = 1;
1074 }
1075
1076 // For BYPASS/FLEXIBLE mode, set the frame flags (reference and updates)
1077 // and the buffer indices for each spatial layer of the current
1078 // (super)frame to be encoded. The spatial and temporal layer_id for the
1079 // current frame also needs to be set.
1080 // TODO(marpan): Should rename the "VP9E_TEMPORAL_LAYERING_MODE_BYPASS"
1081 // mode to "VP9E_LAYERING_MODE_BYPASS".
1082 if (svc_ctx.temporal_layering_mode == VP9E_TEMPORAL_LAYERING_MODE_BYPASS) {
1083 layer_id.spatial_layer_id = 0;
1084 // Example for 2 temporal layers.
1085 if (frame_cnt % 2 == 0) {
1086 layer_id.temporal_layer_id = 0;
1087 for (i = 0; i < VPX_SS_MAX_LAYERS; i++)
1088 layer_id.temporal_layer_id_per_spatial[i] = 0;
1089 } else {
1090 layer_id.temporal_layer_id = 1;
1091 for (i = 0; i < VPX_SS_MAX_LAYERS; i++)
1092 layer_id.temporal_layer_id_per_spatial[i] = 1;
1093 }
1094 if (example_pattern == 1) {
1095 // example_pattern 1 is hard-coded for 2 spatial and 2 temporal layers.
1096 assert(svc_ctx.spatial_layers == 2);
1097 assert(svc_ctx.temporal_layers == 2);
1098 if (frame_cnt % 2 == 0) {
1099 // Spatial layer 0 and 1 are encoded.
1100 layer_id.temporal_layer_id_per_spatial[0] = 0;
1101 layer_id.temporal_layer_id_per_spatial[1] = 0;
1102 layer_id.spatial_layer_id = 0;
1103 } else {
1104 // Only spatial layer 1 is encoded here.
1105 layer_id.temporal_layer_id_per_spatial[1] = 1;
1106 layer_id.spatial_layer_id = 1;
1107 }
1108 }
1109 vpx_codec_control(&encoder, VP9E_SET_SVC_LAYER_ID, &layer_id);
1110 // TODO(jianj): Fix the parameter passing for "is_key_frame" in
1111 // set_frame_flags_bypass_model() for case of periodic key frames.
1112 if (example_pattern == 0) {
1113 set_frame_flags_bypass_mode_ex0(layer_id.temporal_layer_id,
1114 svc_ctx.spatial_layers, frame_cnt == 0,
1115 &ref_frame_config);
1116 } else if (example_pattern == 1) {
1117 set_frame_flags_bypass_mode_ex1(layer_id.temporal_layer_id,
1118 svc_ctx.spatial_layers, frame_cnt == 0,
1119 &ref_frame_config);
1120 }
1121 ref_frame_config.duration[0] = frame_duration * 1;
1122 ref_frame_config.duration[1] = frame_duration * 1;
1123
1124 vpx_codec_control(&encoder, VP9E_SET_SVC_REF_FRAME_CONFIG,
1125 &ref_frame_config);
1126 // Keep track of input frames, to account for frame drops in rate control
1127 // stats/metrics.
1128 for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
1129 ++rc.layer_input_frames[sl * enc_cfg.ts_number_layers +
1130 layer_id.temporal_layer_id];
1131 }
1132 } else {
1133 // For the fixed pattern SVC, temporal layer is given by superframe count.
1134 unsigned int tl = 0;
1135 if (enc_cfg.ts_number_layers == 2)
1136 tl = (frame_cnt % 2 != 0);
1137 else if (enc_cfg.ts_number_layers == 3) {
1138 if (frame_cnt % 2 != 0) tl = 2;
1139 if ((frame_cnt > 1) && ((frame_cnt - 2) % 4 == 0)) tl = 1;
1140 }
1141 for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl)
1142 ++rc.layer_input_frames[sl * enc_cfg.ts_number_layers + tl];
1143 }
1144
1145 vpx_usec_timer_start(&timer);
1146 res = vpx_svc_encode(
1147 &svc_ctx, &encoder, (end_of_stream ? NULL : &raw), pts, frame_duration,
1148 svc_ctx.speed >= 5 ? VPX_DL_REALTIME : VPX_DL_GOOD_QUALITY);
1149 vpx_usec_timer_mark(&timer);
1150 cx_time += vpx_usec_timer_elapsed(&timer);
1151
1152 fflush(stdout);
1153 if (res != VPX_CODEC_OK) {
1154 die_codec(&encoder, "Failed to encode frame");
1155 }
1156
1157 while ((cx_pkt = vpx_codec_get_cx_data(&encoder, &iter)) != NULL) {
1158 switch (cx_pkt->kind) {
1159 case VPX_CODEC_CX_FRAME_PKT: {
1160 SvcInternal_t *const si = (SvcInternal_t *)svc_ctx.internal;
1161 if (cx_pkt->data.frame.sz > 0) {
1162 vpx_video_writer_write_frame(writer, cx_pkt->data.frame.buf,
1163 cx_pkt->data.frame.sz,
1164 cx_pkt->data.frame.pts);
1165 #if OUTPUT_RC_STATS
1166 if (svc_ctx.output_rc_stat) {
1167 svc_output_rc_stats(&encoder, &enc_cfg, &layer_id, cx_pkt, &rc,
1168 outfile, frame_cnt, framerate);
1169 }
1170 #endif
1171 }
1172 /*
1173 printf("SVC frame: %d, kf: %d, size: %d, pts: %d\n", frames_received,
1174 !!(cx_pkt->data.frame.flags & VPX_FRAME_IS_KEY),
1175 (int)cx_pkt->data.frame.sz, (int)cx_pkt->data.frame.pts);
1176 */
1177 if (enc_cfg.ss_number_layers == 1 && enc_cfg.ts_number_layers == 1)
1178 si->bytes_sum[0] += (int)cx_pkt->data.frame.sz;
1179 ++frames_received;
1180 #if CONFIG_VP9_DECODER && !SIMULCAST_MODE
1181 if (vpx_codec_decode(&decoder, cx_pkt->data.frame.buf,
1182 (unsigned int)cx_pkt->data.frame.sz, NULL, 0))
1183 die_codec(&decoder, "Failed to decode frame.");
1184 #endif
1185 break;
1186 }
1187 case VPX_CODEC_STATS_PKT: {
1188 stats_write(&app_input.rc_stats, cx_pkt->data.twopass_stats.buf,
1189 cx_pkt->data.twopass_stats.sz);
1190 break;
1191 }
1192 default: { break; }
1193 }
1194
1195 #if CONFIG_VP9_DECODER && !SIMULCAST_MODE
1196 vpx_codec_control(&encoder, VP9E_GET_SVC_LAYER_ID, &layer_id);
1197 // Don't look for mismatch on top spatial and top temporal layers as they
1198 // are non reference frames.
1199 if ((enc_cfg.ss_number_layers > 1 || enc_cfg.ts_number_layers > 1) &&
1200 !(layer_id.temporal_layer_id > 0 &&
1201 layer_id.temporal_layer_id == (int)enc_cfg.ts_number_layers - 1 &&
1202 cx_pkt->data.frame
1203 .spatial_layer_encoded[enc_cfg.ss_number_layers - 1])) {
1204 test_decode(&encoder, &decoder, frame_cnt, &mismatch_seen);
1205 }
1206 #endif
1207 }
1208
1209 if (!end_of_stream) {
1210 ++frame_cnt;
1211 pts += frame_duration;
1212 }
1213 }
1214
1215 printf("Processed %d frames\n", frame_cnt);
1216
1217 close_input_file(&app_input.input_ctx);
1218
1219 #if OUTPUT_RC_STATS
1220 if (svc_ctx.output_rc_stat) {
1221 printout_rate_control_summary(&rc, &enc_cfg, frame_cnt);
1222 printf("\n");
1223 }
1224 #endif
1225 if (vpx_codec_destroy(&encoder))
1226 die_codec(&encoder, "Failed to destroy codec");
1227 if (app_input.passes == 2) stats_close(&app_input.rc_stats, 1);
1228 if (writer) {
1229 vpx_video_writer_close(writer);
1230 }
1231 #if OUTPUT_RC_STATS
1232 if (svc_ctx.output_rc_stat) {
1233 for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
1234 vpx_video_writer_close(outfile[sl]);
1235 }
1236 }
1237 #endif
1238 #if CONFIG_INTERNAL_STATS
1239 if (mismatch_seen) {
1240 fprintf(f, "First mismatch occurred in frame %d\n", mismatch_seen);
1241 } else {
1242 fprintf(f, "No mismatch detected in recon buffers\n");
1243 }
1244 fclose(f);
1245 #endif
1246 printf("Frame cnt and encoding time/FPS stats for encoding: %d %f %f \n",
1247 frame_cnt, 1000 * (float)cx_time / (double)(frame_cnt * 1000000),
1248 1000000 * (double)frame_cnt / (double)cx_time);
1249 if (app_input.input_ctx.file_type != FILE_TYPE_Y4M) {
1250 vpx_img_free(&raw);
1251 }
1252 // display average size, psnr
1253 vpx_svc_dump_statistics(&svc_ctx);
1254 vpx_svc_release(&svc_ctx);
1255 return EXIT_SUCCESS;
1256 }
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:570
vpx_svc_ref_frame_config::alt_fb_idx
int alt_fb_idx[5]
Definition: vp8cx.h:820
vpx_svc_ref_frame_config::gld_fb_idx
int gld_fb_idx[5]
Definition: vp8cx.h:819
vpx_svc_ref_frame_config::lst_fb_idx
int lst_fb_idx[5]
Definition: vp8cx.h:818
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:658
vpx_image::d_h
unsigned int d_h
Definition: vpx_image.h:83
VPX_IMG_FMT_HIGHBITDEPTH
#define VPX_IMG_FMT_HIGHBITDEPTH
Definition: vpx_image.h:35
vpx_codec_ctx
Codec context structure.
Definition: vpx_codec.h:197
VPX_BITS_8
Definition: vpx_codec.h:218
vpx_codec_err_to_string
const char * vpx_codec_err_to_string(vpx_codec_err_t err)
Convert error number to printable string.
VPX_SS_MAX_LAYERS
#define VPX_SS_MAX_LAYERS
Definition: vpx_encoder.h:46
VP9E_SET_AQ_MODE
Codec control function to set adaptive quantization mode.
Definition: vp8cx.h:398
vpx_codec_cx_pkt::kind
enum vpx_codec_cx_pkt_kind kind
Definition: vpx_encoder.h:160
VP9E_GET_SVC_LAYER_ID
Codec control function to get svc layer ID.
Definition: vp8cx.h:471
vpx_img_free
void vpx_img_free(vpx_image_t *img)
Close an image descriptor.
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:708
vpx_codec_enc_cfg::ss_number_layers
unsigned int ss_number_layers
Number of spatial coding layers.
Definition: vpx_encoder.h:624
vpx_codec_enc_cfg::rc_twopass_stats_in
vpx_fixed_buf_t rc_twopass_stats_in
Two-pass stats buffer.
Definition: vpx_encoder.h:447
vpx_codec_enc_cfg
Encoder configuration structure.
Definition: vpx_encoder.h:268
vpx_svc_ref_frame_config::reference_golden
int reference_golden[5]
Definition: vp8cx.h:827
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_enc_cfg::kf_max_dist
unsigned int kf_max_dist
Keyframe maximum interval.
Definition: vpx_encoder.h:614
vpx_codec_iface_name
const char * vpx_codec_iface_name(vpx_codec_iface_t *iface)
Return the name for a given interface.
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_rational::num
int num
Definition: vpx_encoder.h:219
vpx_svc_frame_drop::max_consec_drop
int max_consec_drop
Definition: vp8cx.h:857
VPX_DL_REALTIME
#define VPX_DL_REALTIME
deadline parameter analogous to VPx REALTIME mode.
Definition: vpx_encoder.h:830
VPX_CODEC_OK
Operation completed without error.
Definition: vpx_codec.h:92
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_codec_cx_pkt
Encoder output packet.
Definition: vpx_encoder.h:159
vpx_codec_iter_t
const typedef void * vpx_codec_iter_t
Iterator.
Definition: vpx_codec.h:187
vpx_codec_enc_cfg::g_w
unsigned int g_w
Width of the frame.
Definition: vpx_encoder.h:304
VPX_CODEC_CX_FRAME_PKT
Definition: vpx_encoder.h:147
vp9_ref_frame::idx
int idx
Definition: vp8.h:111
vp9_ref_frame
VP9 specific reference frame data struct.
Definition: vp8.h:110
vpx_image::d_w
unsigned int d_w
Definition: vpx_image.h:82
vpx_svc_ref_frame_config
vp9 svc frame flag parameters.
Definition: vp8cx.h:817
vpx_image::fmt
vpx_img_fmt_t fmt
Definition: vpx_image.h:72
vpx_codec_enc_cfg::g_profile
unsigned int g_profile
Bitstream profile to use.
Definition: vpx_encoder.h:295
VPX_BITS_12
Definition: vpx_codec.h:220
VP9E_SET_SVC_INTER_LAYER_PRED
Codec control function to constrain the inter-layer prediction (prediction of lower spatial resolutio...
Definition: vp8cx.h:619
VPX_MAX_LAYERS
#define VPX_MAX_LAYERS
Definition: vpx_encoder.h:43
VPX_CODEC_STATS_PKT
Definition: vpx_encoder.h:148
VPX_RC_LAST_PASS
Definition: vpx_encoder.h:227
VP8E_SET_STATIC_THRESHOLD
Codec control function to set the threshold for MBs treated static.
Definition: vp8cx.h:188
vpx_codec_enc_cfg::g_bit_depth
vpx_bit_depth_t g_bit_depth
Bit-depth of the codec.
Definition: vpx_encoder.h:321
vpx_codec_enc_cfg::g_timebase
struct vpx_rational g_timebase
Stream timebase units.
Definition: vpx_encoder.h:343
VPX_IMG_FMT_I420
Definition: vpx_image.h:42
vpx_svc_ref_frame_config::reference_last
int reference_last[5]
Definition: vp8cx.h:826
vpx_codec_enc_cfg::rc_dropframe_thresh
unsigned int rc_dropframe_thresh
Temporal resampling configuration, if supported by the codec.
Definition: vpx_encoder.h:391
VPX_CODEC_CORRUPT_FRAME
The coded data for this stream is corrupt or incomplete.
Definition: vpx_codec.h:130
vpx_codec_enc_cfg::g_error_resilient
vpx_codec_er_flags_t g_error_resilient
Enable error resilient modes.
Definition: vpx_encoder.h:351
vpx_image
Image Descriptor.
Definition: vpx_image.h:71
vpx_codec_enc_cfg::g_pass
enum vpx_enc_pass g_pass
Multi-pass Encoding Mode.
Definition: vpx_encoder.h:358
vpx_codec_enc_cfg::g_h
unsigned int g_h
Height of the frame.
Definition: vpx_encoder.h:313
vpx_svc_ref_frame_config::update_buffer_slot
int update_buffer_slot[5]
Definition: vp8cx.h:821
VP9E_SET_SVC_LAYER_ID
Codec control function to set svc layer for spatial and temporal.
Definition: vp8cx.h:453
vpx_codec_enc_cfg::rc_end_usage
enum vpx_rc_mode rc_end_usage
Rate control algorithm to use.
Definition: vpx_encoder.h:440
vpx_codec_enc_cfg::g_lag_in_frames
unsigned int g_lag_in_frames
Allow lagged encoding.
Definition: vpx_encoder.h:372
VP8E_SET_CPUUSED
Codec control function to set encoder internal speed settings.
Definition: vp8cx.h:155
vpx_codec_err_t
vpx_codec_err_t
Algorithm return codes.
Definition: vpx_codec.h:90
VP9_GET_REFERENCE
Definition: vp8.h:55
vpx_svc_frame_drop::framedrop_mode
SVC_LAYER_DROP_MODE framedrop_mode
Definition: vp8cx.h:856
vpx_svc_layer_id
vp9 svc layer parameters
Definition: vp8cx.h:802
VP9E_SET_TUNE_CONTENT
Codec control function to set content type.
Definition: vp8cx.h:463
VP9E_SET_NOISE_SENSITIVITY
Codec control function to set noise sensitivity.
Definition: vp8cx.h:421
vpx_codec_enc_cfg::layer_target_bitrate
unsigned int layer_target_bitrate[12]
Target bitrate for each spatial/temporal layer.
Definition: vpx_encoder.h:684
vpx_svc_layer_id::temporal_layer_id
int temporal_layer_id
Definition: vp8cx.h:805
vpx_codec_enc_cfg::g_input_bit_depth
unsigned int g_input_bit_depth
Bit-depth of the input frames.
Definition: vpx_encoder.h:329
VPX_CQ
Definition: vpx_encoder.h:234
vpx_codec_cx_pkt::data
union vpx_codec_cx_pkt::@1 data
VPX_RC_FIRST_PASS
Definition: vpx_encoder.h:226
vpx_svc_frame_drop::framedrop_thresh
int framedrop_thresh[5]
Definition: vp8cx.h:854
VPX_IMG_FMT_I42016
Definition: vpx_image.h:46
VPX_FRAME_IS_KEY
#define VPX_FRAME_IS_KEY
Definition: vpx_encoder.h:116
vp8cx.h
Provides definitions for using VP8 or VP9 encoder algorithm within the vpx Codec Interface.
vpx_codec_enc_cfg::kf_min_dist
unsigned int kf_min_dist
Keyframe minimum interval.
Definition: vpx_encoder.h:605
vpx_codec_dec_init
#define vpx_codec_dec_init(ctx, iface, cfg, flags)
Convenience macro for vpx_codec_dec_init_ver()
Definition: vpx_decoder.h:144
vpx_fixed_buf::sz
size_t sz
Definition: vpx_encoder.h:98
VPX_BITS_10
Definition: vpx_codec.h:219
VP9E_SET_ROW_MT
Codec control function to set row level multi-threading.
Definition: vp8cx.h:570
vpx_svc_frame_drop
vp9 svc frame dropping parameters.
Definition: vp8cx.h:853
vpx_codec_ctx::err
vpx_codec_err_t err
Definition: vpx_codec.h:200
VP8E_SET_MAX_INTRA_BITRATE_PCT
Codec control function to set Max data rate for Intra frames.
Definition: vp8cx.h:257
vpx_codec_enc_cfg::rc_target_bitrate
unsigned int rc_target_bitrate
Target data rate.
Definition: vpx_encoder.h:460
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:577
VP9E_SET_TILE_COLUMNS
Codec control function to set number of tile columns.
Definition: vp8cx.h:351
vpx_fixed_buf::buf
void * buf
Definition: vpx_encoder.h:97
vpx_codec_cx_pkt::twopass_stats
vpx_fixed_buf_t twopass_stats
Definition: vpx_encoder.h:182
vpx_codec_control
#define vpx_codec_control(ctx, id, data)
vpx_codec_control wrapper macro
Definition: vpx_codec.h:404
VP9E_SET_SVC_REF_FRAME_CONFIG
Codec control function to set the frame flags and buffer indices for spatial layers....
Definition: vp8cx.h:545
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:628
vpx_rational::den
int den
Definition: vpx_encoder.h:220
vpx_svc_ref_frame_config::duration
int64_t duration[5]
Definition: vp8cx.h:829
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_destroy
vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx)
Destroy a codec instance.
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:693
vpx_encoder.h
Describes the encoder algorithm interface to applications.
VPX_RC_ONE_PASS
Definition: vpx_encoder.h:225
VPX_DL_GOOD_QUALITY
#define VPX_DL_GOOD_QUALITY
deadline parameter analogous to VPx GOOD QUALITY mode.
Definition: vpx_encoder.h:832
vpx_codec_enc_cfg::ts_number_layers
unsigned int ts_number_layers
Number of temporal coding layers.
Definition: vpx_encoder.h:644
vpx_codec_cx_pkt::frame
struct vpx_codec_cx_pkt::@1::@2 frame
vpx_svc_ref_frame_config::reference_alt_ref
int reference_alt_ref[5]
Definition: vp8cx.h:828
FULL_SUPERFRAME_DROP
Definition: vp8cx.h:841