2 * Copyright (c) 2012 The WebM project authors. All Rights Reserved.
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.
11 // This is an example demonstrating how to implement a multi-layer VPx
12 // encoding scheme based on temporal scalability for video applications
13 // that benefit from a scalable bitstream.
21 #include "./vpx_config.h"
22 #include "vpx_ports/vpx_timer.h"
23 #include "vpx/vp8cx.h"
24 #include "vpx/vpx_encoder.h"
26 #include "./tools_common.h"
27 #include "./video_writer.h"
29 static const char *exec_name;
35 // Denoiser states, for temporal denoising.
40 kDenoiserOnYUVAggressive,
44 static int mode_to_num_layers[12] = {1, 2, 2, 3, 3, 3, 3, 5, 2, 3, 3, 3};
46 // For rate control encoding stats.
47 struct RateControlMetrics {
48 // Number of input frames per layer.
49 int layer_input_frames[VPX_TS_MAX_LAYERS];
50 // Total (cumulative) number of encoded frames per layer.
51 int layer_tot_enc_frames[VPX_TS_MAX_LAYERS];
52 // Number of encoded non-key frames per layer.
53 int layer_enc_frames[VPX_TS_MAX_LAYERS];
54 // Framerate per layer layer (cumulative).
55 double layer_framerate[VPX_TS_MAX_LAYERS];
56 // Target average frame size per layer (per-frame-bandwidth per layer).
57 double layer_pfb[VPX_TS_MAX_LAYERS];
58 // Actual average frame size per layer.
59 double layer_avg_frame_size[VPX_TS_MAX_LAYERS];
60 // Average rate mismatch per layer (|target - actual| / target).
61 double layer_avg_rate_mismatch[VPX_TS_MAX_LAYERS];
62 // Actual encoding bitrate per layer (cumulative).
63 double layer_encoding_bitrate[VPX_TS_MAX_LAYERS];
66 // Note: these rate control metrics assume only 1 key frame in the
67 // sequence (i.e., first frame only). So for temporal pattern# 7
68 // (which has key frame for every frame on base layer), the metrics
69 // computation will be off/wrong.
70 // TODO(marpan): Update these metrics to account for multiple key frames
72 static void set_rate_control_metrics(struct RateControlMetrics *rc,
73 vpx_codec_enc_cfg_t *cfg) {
75 // Set the layer (cumulative) framerate and the target layer (non-cumulative)
76 // per-frame-bandwidth, for the rate control encoding stats below.
77 const double framerate = cfg->g_timebase.den / cfg->g_timebase.num;
78 rc->layer_framerate[0] = framerate / cfg->ts_rate_decimator[0];
79 rc->layer_pfb[0] = 1000.0 * cfg->ts_target_bitrate[0] /
80 rc->layer_framerate[0];
81 for (i = 0; i < cfg->ts_number_layers; ++i) {
83 rc->layer_framerate[i] = framerate / cfg->ts_rate_decimator[i];
84 rc->layer_pfb[i] = 1000.0 *
85 (cfg->ts_target_bitrate[i] - cfg->ts_target_bitrate[i - 1]) /
86 (rc->layer_framerate[i] - rc->layer_framerate[i - 1]);
88 rc->layer_input_frames[i] = 0;
89 rc->layer_enc_frames[i] = 0;
90 rc->layer_tot_enc_frames[i] = 0;
91 rc->layer_encoding_bitrate[i] = 0.0;
92 rc->layer_avg_frame_size[i] = 0.0;
93 rc->layer_avg_rate_mismatch[i] = 0.0;
97 static void printout_rate_control_summary(struct RateControlMetrics *rc,
98 vpx_codec_enc_cfg_t *cfg,
101 int tot_num_frames = 0;
102 printf("Total number of processed frames: %d\n\n", frame_cnt -1);
103 printf("Rate control layer stats for %d layer(s):\n\n",
104 cfg->ts_number_layers);
105 for (i = 0; i < cfg->ts_number_layers; ++i) {
106 const int num_dropped = (i > 0) ?
107 (rc->layer_input_frames[i] - rc->layer_enc_frames[i]) :
108 (rc->layer_input_frames[i] - rc->layer_enc_frames[i] - 1);
109 tot_num_frames += rc->layer_input_frames[i];
110 rc->layer_encoding_bitrate[i] = 0.001 * rc->layer_framerate[i] *
111 rc->layer_encoding_bitrate[i] / tot_num_frames;
112 rc->layer_avg_frame_size[i] = rc->layer_avg_frame_size[i] /
113 rc->layer_enc_frames[i];
114 rc->layer_avg_rate_mismatch[i] = 100.0 * rc->layer_avg_rate_mismatch[i] /
115 rc->layer_enc_frames[i];
116 printf("For layer#: %d \n", i);
117 printf("Bitrate (target vs actual): %d %f \n", cfg->ts_target_bitrate[i],
118 rc->layer_encoding_bitrate[i]);
119 printf("Average frame size (target vs actual): %f %f \n", rc->layer_pfb[i],
120 rc->layer_avg_frame_size[i]);
121 printf("Average rate_mismatch: %f \n", rc->layer_avg_rate_mismatch[i]);
122 printf("Number of input frames, encoded (non-key) frames, "
123 "and perc dropped frames: %d %d %f \n", rc->layer_input_frames[i],
124 rc->layer_enc_frames[i],
125 100.0 * num_dropped / rc->layer_input_frames[i]);
128 if ((frame_cnt - 1) != tot_num_frames)
129 die("Error: Number of input frames not equal to output! \n");
132 // Temporal scaling parameters:
133 // NOTE: The 3 prediction frames cannot be used interchangeably due to
134 // differences in the way they are handled throughout the code. The
135 // frames should be allocated to layers in the order LAST, GF, ARF.
136 // Other combinations work, but may produce slightly inferior results.
137 static void set_temporal_layer_pattern(int layering_mode,
138 vpx_codec_enc_cfg_t *cfg,
140 int *flag_periodicity) {
141 switch (layering_mode) {
145 cfg->ts_periodicity = 1;
146 *flag_periodicity = 1;
147 cfg->ts_number_layers = 1;
148 cfg->ts_rate_decimator[0] = 1;
149 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
151 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF |
152 VP8_EFLAG_NO_UPD_ARF;
156 // 2-layers, 2-frame period.
158 cfg->ts_periodicity = 2;
159 *flag_periodicity = 2;
160 cfg->ts_number_layers = 2;
161 cfg->ts_rate_decimator[0] = 2;
162 cfg->ts_rate_decimator[1] = 1;
163 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
165 // 0=L, 1=GF, Intra-layer prediction enabled.
166 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF |
167 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
168 layer_flags[1] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST |
169 VP8_EFLAG_NO_REF_ARF;
171 // 0=L, 1=GF, Intra-layer prediction disabled.
172 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF |
173 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
174 layer_flags[1] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST |
175 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_REF_LAST;
180 // 2-layers, 3-frame period.
181 int ids[3] = {0, 1, 1};
182 cfg->ts_periodicity = 3;
183 *flag_periodicity = 3;
184 cfg->ts_number_layers = 2;
185 cfg->ts_rate_decimator[0] = 3;
186 cfg->ts_rate_decimator[1] = 1;
187 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
188 // 0=L, 1=GF, Intra-layer prediction enabled.
189 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
190 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
192 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
193 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
197 // 3-layers, 6-frame period.
198 int ids[6] = {0, 2, 2, 1, 2, 2};
199 cfg->ts_periodicity = 6;
200 *flag_periodicity = 6;
201 cfg->ts_number_layers = 3;
202 cfg->ts_rate_decimator[0] = 6;
203 cfg->ts_rate_decimator[1] = 3;
204 cfg->ts_rate_decimator[2] = 1;
205 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
206 // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled.
207 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
208 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
209 layer_flags[3] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_ARF |
210 VP8_EFLAG_NO_UPD_LAST;
214 layer_flags[5] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_LAST;
218 // 3-layers, 4-frame period.
219 int ids[4] = {0, 2, 1, 2};
220 cfg->ts_periodicity = 4;
221 *flag_periodicity = 4;
222 cfg->ts_number_layers = 3;
223 cfg->ts_rate_decimator[0] = 4;
224 cfg->ts_rate_decimator[1] = 2;
225 cfg->ts_rate_decimator[2] = 1;
226 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
227 // 0=L, 1=GF, 2=ARF, Intra-layer prediction disabled.
228 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
229 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
230 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
231 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
233 layer_flags[3] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST |
234 VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
238 // 3-layers, 4-frame period.
239 int ids[4] = {0, 2, 1, 2};
240 cfg->ts_periodicity = 4;
241 *flag_periodicity = 4;
242 cfg->ts_number_layers = 3;
243 cfg->ts_rate_decimator[0] = 4;
244 cfg->ts_rate_decimator[1] = 2;
245 cfg->ts_rate_decimator[2] = 1;
246 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
247 // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled in layer 1, disabled
249 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
250 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
251 layer_flags[2] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST |
252 VP8_EFLAG_NO_UPD_ARF;
254 layer_flags[3] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST |
255 VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
259 // 3-layers, 4-frame period.
260 int ids[4] = {0, 2, 1, 2};
261 cfg->ts_periodicity = 4;
262 *flag_periodicity = 4;
263 cfg->ts_number_layers = 3;
264 cfg->ts_rate_decimator[0] = 4;
265 cfg->ts_rate_decimator[1] = 2;
266 cfg->ts_rate_decimator[2] = 1;
267 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
268 // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled.
269 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
270 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
271 layer_flags[2] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST |
272 VP8_EFLAG_NO_UPD_ARF;
274 layer_flags[3] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
278 // NOTE: Probably of academic interest only.
279 // 5-layers, 16-frame period.
280 int ids[16] = {0, 4, 3, 4, 2, 4, 3, 4, 1, 4, 3, 4, 2, 4, 3, 4};
281 cfg->ts_periodicity = 16;
282 *flag_periodicity = 16;
283 cfg->ts_number_layers = 5;
284 cfg->ts_rate_decimator[0] = 16;
285 cfg->ts_rate_decimator[1] = 8;
286 cfg->ts_rate_decimator[2] = 4;
287 cfg->ts_rate_decimator[3] = 2;
288 cfg->ts_rate_decimator[4] = 1;
289 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
290 layer_flags[0] = VPX_EFLAG_FORCE_KF;
298 layer_flags[15] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF |
299 VP8_EFLAG_NO_UPD_ARF;
303 layer_flags[14] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_GF;
305 layer_flags[12] = VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_UPD_ARF;
306 layer_flags[8] = VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_REF_GF;
310 // 2-layers, with sync point at first frame of layer 1.
312 cfg->ts_periodicity = 2;
313 *flag_periodicity = 8;
314 cfg->ts_number_layers = 2;
315 cfg->ts_rate_decimator[0] = 2;
316 cfg->ts_rate_decimator[1] = 1;
317 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
319 // ARF is used as predictor for all frames, and is only updated on
320 // key frame. Sync point every 8 frames.
322 // Layer 0: predict from L and ARF, update L and G.
323 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
324 VP8_EFLAG_NO_UPD_ARF;
325 // Layer 1: sync point: predict from L and ARF, and update G.
326 layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_LAST |
327 VP8_EFLAG_NO_UPD_ARF;
328 // Layer 0, predict from L and ARF, update L.
329 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_GF |
330 VP8_EFLAG_NO_UPD_ARF;
331 // Layer 1: predict from L, G and ARF, and update G.
332 layer_flags[3] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST |
333 VP8_EFLAG_NO_UPD_ENTROPY;
335 layer_flags[4] = layer_flags[2];
337 layer_flags[5] = layer_flags[3];
339 layer_flags[6] = layer_flags[4];
341 layer_flags[7] = layer_flags[5];
345 // 3-layers: Sync points for layer 1 and 2 every 8 frames.
346 int ids[4] = {0, 2, 1, 2};
347 cfg->ts_periodicity = 4;
348 *flag_periodicity = 8;
349 cfg->ts_number_layers = 3;
350 cfg->ts_rate_decimator[0] = 4;
351 cfg->ts_rate_decimator[1] = 2;
352 cfg->ts_rate_decimator[2] = 1;
353 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
355 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
356 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
357 layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
358 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
359 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
360 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF;
362 layer_flags[5] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
363 layer_flags[4] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
364 VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
365 layer_flags[6] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST |
366 VP8_EFLAG_NO_UPD_ARF;
367 layer_flags[7] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF |
368 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_ENTROPY;
372 // 3-layers structure where ARF is used as predictor for all frames,
373 // and is only updated on key frame.
374 // Sync points for layer 1 and 2 every 8 frames.
376 int ids[4] = {0, 2, 1, 2};
377 cfg->ts_periodicity = 4;
378 *flag_periodicity = 8;
379 cfg->ts_number_layers = 3;
380 cfg->ts_rate_decimator[0] = 4;
381 cfg->ts_rate_decimator[1] = 2;
382 cfg->ts_rate_decimator[2] = 1;
383 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
385 // Layer 0: predict from L and ARF; update L and G.
386 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_ARF |
388 // Layer 2: sync point: predict from L and ARF; update none.
389 layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_GF |
390 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST |
391 VP8_EFLAG_NO_UPD_ENTROPY;
392 // Layer 1: sync point: predict from L and ARF; update G.
393 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_ARF |
394 VP8_EFLAG_NO_UPD_LAST;
395 // Layer 2: predict from L, G, ARF; update none.
396 layer_flags[3] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
397 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ENTROPY;
398 // Layer 0: predict from L and ARF; update L.
399 layer_flags[4] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
401 // Layer 2: predict from L, G, ARF; update none.
402 layer_flags[5] = layer_flags[3];
403 // Layer 1: predict from L, G, ARF; update G.
404 layer_flags[6] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
405 // Layer 2: predict from L, G, ARF; update none.
406 layer_flags[7] = layer_flags[3];
411 // 3-layers structure as in case 10, but no sync/refresh points for
413 int ids[4] = {0, 2, 1, 2};
414 cfg->ts_periodicity = 4;
415 *flag_periodicity = 8;
416 cfg->ts_number_layers = 3;
417 cfg->ts_rate_decimator[0] = 4;
418 cfg->ts_rate_decimator[1] = 2;
419 cfg->ts_rate_decimator[2] = 1;
420 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
422 // Layer 0: predict from L and ARF; update L.
423 layer_flags[0] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
425 layer_flags[4] = layer_flags[0];
426 // Layer 1: predict from L, G, ARF; update G.
427 layer_flags[2] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
428 layer_flags[6] = layer_flags[2];
429 // Layer 2: predict from L, G, ARF; update none.
430 layer_flags[1] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
431 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ENTROPY;
432 layer_flags[3] = layer_flags[1];
433 layer_flags[5] = layer_flags[1];
434 layer_flags[7] = layer_flags[1];
440 int main(int argc, char **argv) {
441 VpxVideoWriter *outfile[VPX_TS_MAX_LAYERS] = {NULL};
442 vpx_codec_ctx_t codec;
443 vpx_codec_enc_cfg_t cfg;
454 int pts = 0; // PTS starts at 0.
455 int frame_duration = 1; // 1 timebase tick per frame.
456 int layering_mode = 0;
457 int layer_flags[VPX_TS_MAX_PERIODICITY] = {0};
458 int flag_periodicity = 1;
459 vpx_svc_layer_id_t layer_id = {0, 0};
460 const VpxInterface *encoder = NULL;
462 struct RateControlMetrics rc;
464 const int min_args_base = 11;
465 #if CONFIG_VP9_HIGHBITDEPTH
466 vpx_bit_depth_t bit_depth = VPX_BITS_8;
467 int input_bit_depth = 8;
468 const int min_args = min_args_base + 1;
470 const int min_args = min_args_base;
471 #endif // CONFIG_VP9_HIGHBITDEPTH
474 // Check usage and arguments.
475 if (argc < min_args) {
476 #if CONFIG_VP9_HIGHBITDEPTH
477 die("Usage: %s <infile> <outfile> <codec_type(vp8/vp9)> <width> <height> "
478 "<rate_num> <rate_den> <speed> <frame_drop_threshold> <mode> "
479 "<Rate_0> ... <Rate_nlayers-1> <bit-depth> \n", argv[0]);
481 die("Usage: %s <infile> <outfile> <codec_type(vp8/vp9)> <width> <height> "
482 "<rate_num> <rate_den> <speed> <frame_drop_threshold> <mode> "
483 "<Rate_0> ... <Rate_nlayers-1> \n", argv[0]);
484 #endif // CONFIG_VP9_HIGHBITDEPTH
487 encoder = get_vpx_encoder_by_name(argv[3]);
489 die("Unsupported codec.");
491 printf("Using %s\n", vpx_codec_iface_name(encoder->codec_interface()));
493 width = strtol(argv[4], NULL, 0);
494 height = strtol(argv[5], NULL, 0);
495 if (width < 16 || width % 2 || height < 16 || height % 2) {
496 die("Invalid resolution: %d x %d", width, height);
499 layering_mode = strtol(argv[10], NULL, 0);
500 if (layering_mode < 0 || layering_mode > 12) {
501 die("Invalid layering mode (0..12) %s", argv[10]);
504 if (argc != min_args + mode_to_num_layers[layering_mode]) {
505 die("Invalid number of arguments");
508 #if CONFIG_VP9_HIGHBITDEPTH
509 switch (strtol(argv[argc-1], NULL, 0)) {
511 bit_depth = VPX_BITS_8;
515 bit_depth = VPX_BITS_10;
516 input_bit_depth = 10;
519 bit_depth = VPX_BITS_12;
520 input_bit_depth = 12;
523 die("Invalid bit depth (8, 10, 12) %s", argv[argc-1]);
525 if (!vpx_img_alloc(&raw,
526 bit_depth == VPX_BITS_8 ? VPX_IMG_FMT_I420 :
528 width, height, 32)) {
529 die("Failed to allocate image", width, height);
532 if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, width, height, 32)) {
533 die("Failed to allocate image", width, height);
535 #endif // CONFIG_VP9_HIGHBITDEPTH
537 // Populate encoder configuration.
538 res = vpx_codec_enc_config_default(encoder->codec_interface(), &cfg, 0);
540 printf("Failed to get config: %s\n", vpx_codec_err_to_string(res));
544 // Update the default configuration with our settings.
548 #if CONFIG_VP9_HIGHBITDEPTH
549 if (bit_depth != VPX_BITS_8) {
550 cfg.g_bit_depth = bit_depth;
551 cfg.g_input_bit_depth = input_bit_depth;
554 #endif // CONFIG_VP9_HIGHBITDEPTH
556 // Timebase format e.g. 30fps: numerator=1, demoninator = 30.
557 cfg.g_timebase.num = strtol(argv[6], NULL, 0);
558 cfg.g_timebase.den = strtol(argv[7], NULL, 0);
560 speed = strtol(argv[8], NULL, 0);
562 die("Invalid speed setting: must be positive");
565 for (i = min_args_base;
566 (int)i < min_args_base + mode_to_num_layers[layering_mode];
568 cfg.ts_target_bitrate[i - 11] = strtol(argv[i], NULL, 0);
571 // Real time parameters.
572 cfg.rc_dropframe_thresh = strtol(argv[9], NULL, 0);
573 cfg.rc_end_usage = VPX_CBR;
574 cfg.rc_resize_allowed = 0;
575 cfg.rc_min_quantizer = 2;
576 cfg.rc_max_quantizer = 56;
577 cfg.rc_undershoot_pct = 50;
578 cfg.rc_overshoot_pct = 50;
579 cfg.rc_buf_initial_sz = 500;
580 cfg.rc_buf_optimal_sz = 600;
581 cfg.rc_buf_sz = 1000;
583 // Enable error resilient mode.
584 cfg.g_error_resilient = 1;
585 cfg.g_lag_in_frames = 0;
586 cfg.kf_mode = VPX_KF_AUTO;
588 // Disable automatic keyframe placement.
589 cfg.kf_min_dist = cfg.kf_max_dist = 3000;
591 set_temporal_layer_pattern(layering_mode,
596 set_rate_control_metrics(&rc, &cfg);
598 // Target bandwidth for the whole stream.
599 // Set to ts_target_bitrate for highest layer (total bitrate).
600 cfg.rc_target_bitrate = cfg.ts_target_bitrate[cfg.ts_number_layers - 1];
603 if (!(infile = fopen(argv[1], "rb"))) {
604 die("Failed to open %s for reading", argv[1]);
607 // Open an output file for each stream.
608 for (i = 0; i < cfg.ts_number_layers; ++i) {
609 char file_name[PATH_MAX];
611 info.codec_fourcc = encoder->fourcc;
612 info.frame_width = cfg.g_w;
613 info.frame_height = cfg.g_h;
614 info.time_base.numerator = cfg.g_timebase.num;
615 info.time_base.denominator = cfg.g_timebase.den;
617 snprintf(file_name, sizeof(file_name), "%s_%d.ivf", argv[2], i);
618 outfile[i] = vpx_video_writer_open(file_name, kContainerIVF, &info);
620 die("Failed to open %s for writing", file_name);
622 assert(outfile[i] != NULL);
624 // No spatial layers in this encoder.
625 cfg.ss_number_layers = 1;
628 #if CONFIG_VP9_HIGHBITDEPTH
629 if (vpx_codec_enc_init(
630 &codec, encoder->codec_interface(), &cfg,
631 bit_depth == VPX_BITS_8 ? 0 : VPX_CODEC_USE_HIGHBITDEPTH))
633 if (vpx_codec_enc_init(&codec, encoder->codec_interface(), &cfg, 0))
634 #endif // CONFIG_VP9_HIGHBITDEPTH
635 die_codec(&codec, "Failed to initialize encoder");
637 if (strncmp(encoder->name, "vp8", 3) == 0) {
638 vpx_codec_control(&codec, VP8E_SET_CPUUSED, -speed);
639 vpx_codec_control(&codec, VP8E_SET_NOISE_SENSITIVITY, kDenoiserOnYOnly);
640 } else if (strncmp(encoder->name, "vp9", 3) == 0) {
641 vpx_codec_control(&codec, VP8E_SET_CPUUSED, speed);
642 vpx_codec_control(&codec, VP9E_SET_AQ_MODE, 3);
643 vpx_codec_control(&codec, VP9E_SET_FRAME_PERIODIC_BOOST, 0);
644 vpx_codec_control(&codec, VP9E_SET_NOISE_SENSITIVITY, 0);
645 if (vpx_codec_control(&codec, VP9E_SET_SVC, 1)) {
646 die_codec(&codec, "Failed to set SVC");
649 vpx_codec_control(&codec, VP8E_SET_STATIC_THRESHOLD, 1);
650 vpx_codec_control(&codec, VP8E_SET_TOKEN_PARTITIONS, 1);
651 // This controls the maximum target size of the key frame.
652 // For generating smaller key frames, use a smaller max_intra_size_pct
653 // value, like 100 or 200.
655 const int max_intra_size_pct = 200;
656 vpx_codec_control(&codec, VP8E_SET_MAX_INTRA_BITRATE_PCT,
661 while (frame_avail || got_data) {
662 struct vpx_usec_timer timer;
663 vpx_codec_iter_t iter = NULL;
664 const vpx_codec_cx_pkt_t *pkt;
665 // Update the temporal layer_id. No spatial layers in this test.
666 layer_id.spatial_layer_id = 0;
667 layer_id.temporal_layer_id =
668 cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity];
669 if (strncmp(encoder->name, "vp9", 3) == 0) {
670 vpx_codec_control(&codec, VP9E_SET_SVC_LAYER_ID, &layer_id);
672 flags = layer_flags[frame_cnt % flag_periodicity];
673 frame_avail = vpx_img_read(&raw, infile);
675 ++rc.layer_input_frames[layer_id.temporal_layer_id];
676 vpx_usec_timer_start(&timer);
677 if (vpx_codec_encode(&codec, frame_avail? &raw : NULL, pts, 1, flags,
679 die_codec(&codec, "Failed to encode frame");
681 vpx_usec_timer_mark(&timer);
682 cx_time += vpx_usec_timer_elapsed(&timer);
684 if (layering_mode != 7) {
685 layer_flags[0] &= ~VPX_EFLAG_FORCE_KF;
688 while ( (pkt = vpx_codec_get_cx_data(&codec, &iter)) ) {
691 case VPX_CODEC_CX_FRAME_PKT:
692 for (i = cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity];
693 i < cfg.ts_number_layers; ++i) {
694 vpx_video_writer_write_frame(outfile[i], pkt->data.frame.buf,
695 pkt->data.frame.sz, pts);
696 ++rc.layer_tot_enc_frames[i];
697 rc.layer_encoding_bitrate[i] += 8.0 * pkt->data.frame.sz;
698 // Keep count of rate control stats per layer (for non-key frames).
699 if (i == cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity] &&
700 !(pkt->data.frame.flags & VPX_FRAME_IS_KEY)) {
701 rc.layer_avg_frame_size[i] += 8.0 * pkt->data.frame.sz;
702 rc.layer_avg_rate_mismatch[i] +=
703 fabs(8.0 * pkt->data.frame.sz - rc.layer_pfb[i]) /
705 ++rc.layer_enc_frames[i];
714 pts += frame_duration;
717 printout_rate_control_summary(&rc, &cfg, frame_cnt);
719 printf("Frame cnt and encoding time/FPS stats for encoding: %d %f %f \n",
721 1000 * (float)cx_time / (double)(frame_cnt * 1000000),
722 1000000 * (double)frame_cnt / (double)cx_time);
724 if (vpx_codec_destroy(&codec))
725 die_codec(&codec, "Failed to destroy codec");
727 // Try to rewrite the output file headers with the actual frame count.
728 for (i = 0; i < cfg.ts_number_layers; ++i)
729 vpx_video_writer_close(outfile[i]);