WebM Codec SDK

vpx_temporal_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 // 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.
14
15 #include <assert.h>
16 #include <math.h>
17 #include <stdio.h>
18 #include <stdlib.h>
19 #include <string.h>
20
21 #include "./vpx_config.h"
22 #include "../vpx_ports/vpx_timer.h"
23 #include "vpx/vp8cx.h"
24 #include "vpx/vpx_encoder.h"
25
26 #include "../tools_common.h"
27 #include "../video_writer.h"
28
29 static const char *exec_name;
30
31 void usage_exit(void) { exit(EXIT_FAILURE); }
32
33 // Denoiser states, for temporal denoising.
34 enum denoiserState {
35 kDenoiserOff,
36 kDenoiserOnYOnly,
37 kDenoiserOnYUV,
38 kDenoiserOnYUVAggressive,
39 kDenoiserOnAdaptive
40 };
41
42 static int mode_to_num_layers[13] = { 1, 2, 2, 3, 3, 3, 3, 5, 2, 3, 3, 3, 3 };
43
44 // For rate control encoding stats.
45 struct RateControlMetrics {
46 // Number of input frames per layer.
47 int layer_input_frames[VPX_TS_MAX_LAYERS];
48 // Total (cumulative) number of encoded frames per layer.
49 int layer_tot_enc_frames[VPX_TS_MAX_LAYERS];
50 // Number of encoded non-key frames per layer.
51 int layer_enc_frames[VPX_TS_MAX_LAYERS];
52 // Framerate per layer layer (cumulative).
53 double layer_framerate[VPX_TS_MAX_LAYERS];
54 // Target average frame size per layer (per-frame-bandwidth per layer).
55 double layer_pfb[VPX_TS_MAX_LAYERS];
56 // Actual average frame size per layer.
57 double layer_avg_frame_size[VPX_TS_MAX_LAYERS];
58 // Average rate mismatch per layer (|target - actual| / target).
59 double layer_avg_rate_mismatch[VPX_TS_MAX_LAYERS];
60 // Actual encoding bitrate per layer (cumulative).
61 double layer_encoding_bitrate[VPX_TS_MAX_LAYERS];
62 // Average of the short-time encoder actual bitrate.
63 // TODO(marpan): Should we add these short-time stats for each layer?
64 double avg_st_encoding_bitrate;
65 // Variance of the short-time encoder actual bitrate.
66 double variance_st_encoding_bitrate;
67 // Window (number of frames) for computing short-timee encoding bitrate.
68 int window_size;
69 // Number of window measurements.
70 int window_count;
71 int layer_target_bitrate[VPX_MAX_LAYERS];
72 };
73
74 // Note: these rate control metrics assume only 1 key frame in the
75 // sequence (i.e., first frame only). So for temporal pattern# 7
76 // (which has key frame for every frame on base layer), the metrics
77 // computation will be off/wrong.
78 // TODO(marpan): Update these metrics to account for multiple key frames
79 // in the stream.
80 static void set_rate_control_metrics(struct RateControlMetrics *rc,
81 vpx_codec_enc_cfg_t *cfg) {
82 unsigned int i = 0;
83 // Set the layer (cumulative) framerate and the target layer (non-cumulative)
84 // per-frame-bandwidth, for the rate control encoding stats below.
85 const double framerate = cfg->g_timebase.den / cfg->g_timebase.num;
86 rc->layer_framerate[0] = framerate / cfg->ts_rate_decimator[0];
87 rc->layer_pfb[0] =
88 1000.0 * rc->layer_target_bitrate[0] / rc->layer_framerate[0];
89 for (i = 0; i < cfg->ts_number_layers; ++i) {
90 if (i > 0) {
91 rc->layer_framerate[i] = framerate / cfg->ts_rate_decimator[i];
92 rc->layer_pfb[i] = 1000.0 * (rc->layer_target_bitrate[i] -
93 rc->layer_target_bitrate[i - 1]) /
94 (rc->layer_framerate[i] - rc->layer_framerate[i - 1]);
95 }
96 rc->layer_input_frames[i] = 0;
97 rc->layer_enc_frames[i] = 0;
98 rc->layer_tot_enc_frames[i] = 0;
99 rc->layer_encoding_bitrate[i] = 0.0;
100 rc->layer_avg_frame_size[i] = 0.0;
101 rc->layer_avg_rate_mismatch[i] = 0.0;
102 }
103 rc->window_count = 0;
104 rc->window_size = 15;
105 rc->avg_st_encoding_bitrate = 0.0;
106 rc->variance_st_encoding_bitrate = 0.0;
107 }
108
109 static void printout_rate_control_summary(struct RateControlMetrics *rc,
110 vpx_codec_enc_cfg_t *cfg,
111 int frame_cnt) {
112 unsigned int i = 0;
113 int tot_num_frames = 0;
114 double perc_fluctuation = 0.0;
115 printf("Total number of processed frames: %d\n\n", frame_cnt - 1);
116 printf("Rate control layer stats for %d layer(s):\n\n",
117 cfg->ts_number_layers);
118 for (i = 0; i < cfg->ts_number_layers; ++i) {
119 const int num_dropped =
120 (i > 0) ? (rc->layer_input_frames[i] - rc->layer_enc_frames[i])
121 : (rc->layer_input_frames[i] - rc->layer_enc_frames[i] - 1);
122 tot_num_frames += rc->layer_input_frames[i];
123 rc->layer_encoding_bitrate[i] = 0.001 * rc->layer_framerate[i] *
124 rc->layer_encoding_bitrate[i] /
125 tot_num_frames;
126 rc->layer_avg_frame_size[i] =
127 rc->layer_avg_frame_size[i] / rc->layer_enc_frames[i];
128 rc->layer_avg_rate_mismatch[i] =
129 100.0 * rc->layer_avg_rate_mismatch[i] / rc->layer_enc_frames[i];
130 printf("For layer#: %d \n", i);
131 printf("Bitrate (target vs actual): %d %f \n", rc->layer_target_bitrate[i],
132 rc->layer_encoding_bitrate[i]);
133 printf("Average frame size (target vs actual): %f %f \n", rc->layer_pfb[i],
134 rc->layer_avg_frame_size[i]);
135 printf("Average rate_mismatch: %f \n", rc->layer_avg_rate_mismatch[i]);
136 printf(
137 "Number of input frames, encoded (non-key) frames, "
138 "and perc dropped frames: %d %d %f \n",
139 rc->layer_input_frames[i], rc->layer_enc_frames[i],
140 100.0 * num_dropped / rc->layer_input_frames[i]);
141 printf("\n");
142 }
143 rc->avg_st_encoding_bitrate = rc->avg_st_encoding_bitrate / rc->window_count;
144 rc->variance_st_encoding_bitrate =
145 rc->variance_st_encoding_bitrate / rc->window_count -
146 (rc->avg_st_encoding_bitrate * rc->avg_st_encoding_bitrate);
147 perc_fluctuation = 100.0 * sqrt(rc->variance_st_encoding_bitrate) /
148 rc->avg_st_encoding_bitrate;
149 printf("Short-time stats, for window of %d frames: \n", rc->window_size);
150 printf("Average, rms-variance, and percent-fluct: %f %f %f \n",
151 rc->avg_st_encoding_bitrate, sqrt(rc->variance_st_encoding_bitrate),
152 perc_fluctuation);
153 if ((frame_cnt - 1) != tot_num_frames)
154 die("Error: Number of input frames not equal to output! \n");
155 }
156
157 // Temporal scaling parameters:
158 // NOTE: The 3 prediction frames cannot be used interchangeably due to
159 // differences in the way they are handled throughout the code. The
160 // frames should be allocated to layers in the order LAST, GF, ARF.
161 // Other combinations work, but may produce slightly inferior results.
162 static void set_temporal_layer_pattern(int layering_mode,
163 vpx_codec_enc_cfg_t *cfg,
164 int *layer_flags,
165 int *flag_periodicity) {
166 switch (layering_mode) {
167 case 0: {
168 // 1-layer.
169 int ids[1] = { 0 };
170 cfg->ts_periodicity = 1;
171 *flag_periodicity = 1;
172 cfg->ts_number_layers = 1;
173 cfg->ts_rate_decimator[0] = 1;
174 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
175 // Update L only.
176 layer_flags[0] =
177 VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
178 break;
179 }
180 case 1: {
181 // 2-layers, 2-frame period.
182 int ids[2] = { 0, 1 };
183 cfg->ts_periodicity = 2;
184 *flag_periodicity = 2;
185 cfg->ts_number_layers = 2;
186 cfg->ts_rate_decimator[0] = 2;
187 cfg->ts_rate_decimator[1] = 1;
188 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
189 #if 1
190 // 0=L, 1=GF, Intra-layer prediction enabled.
191 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF |
192 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF |
193 VP8_EFLAG_NO_REF_ARF;
194 layer_flags[1] =
195 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_REF_ARF;
196 #else
197 // 0=L, 1=GF, Intra-layer prediction disabled.
198 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF |
199 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF |
200 VP8_EFLAG_NO_REF_ARF;
201 layer_flags[1] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST |
202 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_REF_LAST;
203 #endif
204 break;
205 }
206 case 2: {
207 // 2-layers, 3-frame period.
208 int ids[3] = { 0, 1, 1 };
209 cfg->ts_periodicity = 3;
210 *flag_periodicity = 3;
211 cfg->ts_number_layers = 2;
212 cfg->ts_rate_decimator[0] = 3;
213 cfg->ts_rate_decimator[1] = 1;
214 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
215 // 0=L, 1=GF, Intra-layer prediction enabled.
216 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
217 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF |
218 VP8_EFLAG_NO_UPD_ARF;
219 layer_flags[1] = layer_flags[2] =
220 VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_ARF |
221 VP8_EFLAG_NO_UPD_LAST;
222 break;
223 }
224 case 3: {
225 // 3-layers, 6-frame period.
226 int ids[6] = { 0, 2, 2, 1, 2, 2 };
227 cfg->ts_periodicity = 6;
228 *flag_periodicity = 6;
229 cfg->ts_number_layers = 3;
230 cfg->ts_rate_decimator[0] = 6;
231 cfg->ts_rate_decimator[1] = 3;
232 cfg->ts_rate_decimator[2] = 1;
233 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
234 // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled.
235 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
236 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF |
237 VP8_EFLAG_NO_UPD_ARF;
238 layer_flags[3] =
239 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
240 layer_flags[1] = layer_flags[2] = layer_flags[4] = layer_flags[5] =
241 VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_LAST;
242 break;
243 }
244 case 4: {
245 // 3-layers, 4-frame period.
246 int ids[4] = { 0, 2, 1, 2 };
247 cfg->ts_periodicity = 4;
248 *flag_periodicity = 4;
249 cfg->ts_number_layers = 3;
250 cfg->ts_rate_decimator[0] = 4;
251 cfg->ts_rate_decimator[1] = 2;
252 cfg->ts_rate_decimator[2] = 1;
253 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
254 // 0=L, 1=GF, 2=ARF, Intra-layer prediction disabled.
255 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
256 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF |
257 VP8_EFLAG_NO_UPD_ARF;
258 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
259 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
260 layer_flags[1] = layer_flags[3] =
261 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF |
262 VP8_EFLAG_NO_UPD_ARF;
263 break;
264 }
265 case 5: {
266 // 3-layers, 4-frame period.
267 int ids[4] = { 0, 2, 1, 2 };
268 cfg->ts_periodicity = 4;
269 *flag_periodicity = 4;
270 cfg->ts_number_layers = 3;
271 cfg->ts_rate_decimator[0] = 4;
272 cfg->ts_rate_decimator[1] = 2;
273 cfg->ts_rate_decimator[2] = 1;
274 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
275 // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled in layer 1, disabled
276 // in layer 2.
277 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
278 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF |
279 VP8_EFLAG_NO_UPD_ARF;
280 layer_flags[2] =
281 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF;
282 layer_flags[1] = layer_flags[3] =
283 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF |
284 VP8_EFLAG_NO_UPD_ARF;
285 break;
286 }
287 case 6: {
288 // 3-layers, 4-frame period.
289 int ids[4] = { 0, 2, 1, 2 };
290 cfg->ts_periodicity = 4;
291 *flag_periodicity = 4;
292 cfg->ts_number_layers = 3;
293 cfg->ts_rate_decimator[0] = 4;
294 cfg->ts_rate_decimator[1] = 2;
295 cfg->ts_rate_decimator[2] = 1;
296 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
297 // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled.
298 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
299 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF |
300 VP8_EFLAG_NO_UPD_ARF;
301 layer_flags[2] =
302 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF;
303 layer_flags[1] = layer_flags[3] =
304 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
305 break;
306 }
307 case 7: {
308 // NOTE: Probably of academic interest only.
309 // 5-layers, 16-frame period.
310 int ids[16] = { 0, 4, 3, 4, 2, 4, 3, 4, 1, 4, 3, 4, 2, 4, 3, 4 };
311 cfg->ts_periodicity = 16;
312 *flag_periodicity = 16;
313 cfg->ts_number_layers = 5;
314 cfg->ts_rate_decimator[0] = 16;
315 cfg->ts_rate_decimator[1] = 8;
316 cfg->ts_rate_decimator[2] = 4;
317 cfg->ts_rate_decimator[3] = 2;
318 cfg->ts_rate_decimator[4] = 1;
319 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
320 layer_flags[0] = VPX_EFLAG_FORCE_KF;
321 layer_flags[1] = layer_flags[3] = layer_flags[5] = layer_flags[7] =
322 layer_flags[9] = layer_flags[11] = layer_flags[13] = layer_flags[15] =
323 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF |
324 VP8_EFLAG_NO_UPD_ARF;
325 layer_flags[2] = layer_flags[6] = layer_flags[10] = layer_flags[14] =
326 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_GF;
327 layer_flags[4] = layer_flags[12] =
328 VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_UPD_ARF;
329 layer_flags[8] = VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_REF_GF;
330 break;
331 }
332 case 8: {
333 // 2-layers, with sync point at first frame of layer 1.
334 int ids[2] = { 0, 1 };
335 cfg->ts_periodicity = 2;
336 *flag_periodicity = 8;
337 cfg->ts_number_layers = 2;
338 cfg->ts_rate_decimator[0] = 2;
339 cfg->ts_rate_decimator[1] = 1;
340 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
341 // 0=L, 1=GF.
342 // ARF is used as predictor for all frames, and is only updated on
343 // key frame. Sync point every 8 frames.
344
345 // Layer 0: predict from L and ARF, update L and G.
346 layer_flags[0] =
347 VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_ARF;
348 // Layer 1: sync point: predict from L and ARF, and update G.
349 layer_flags[1] =
350 VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF;
351 // Layer 0, predict from L and ARF, update L.
352 layer_flags[2] =
353 VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
354 // Layer 1: predict from L, G and ARF, and update G.
355 layer_flags[3] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST |
356 VP8_EFLAG_NO_UPD_ENTROPY;
357 // Layer 0.
358 layer_flags[4] = layer_flags[2];
359 // Layer 1.
360 layer_flags[5] = layer_flags[3];
361 // Layer 0.
362 layer_flags[6] = layer_flags[4];
363 // Layer 1.
364 layer_flags[7] = layer_flags[5];
365 break;
366 }
367 case 9: {
368 // 3-layers: Sync points for layer 1 and 2 every 8 frames.
369 int ids[4] = { 0, 2, 1, 2 };
370 cfg->ts_periodicity = 4;
371 *flag_periodicity = 8;
372 cfg->ts_number_layers = 3;
373 cfg->ts_rate_decimator[0] = 4;
374 cfg->ts_rate_decimator[1] = 2;
375 cfg->ts_rate_decimator[2] = 1;
376 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
377 // 0=L, 1=GF, 2=ARF.
378 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
379 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF |
380 VP8_EFLAG_NO_UPD_ARF;
381 layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
382 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
383 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
384 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF;
385 layer_flags[3] = layer_flags[5] =
386 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
387 layer_flags[4] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
388 VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
389 layer_flags[6] =
390 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF;
391 layer_flags[7] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF |
392 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_ENTROPY;
393 break;
394 }
395 case 10: {
396 // 3-layers structure where ARF is used as predictor for all frames,
397 // and is only updated on key frame.
398 // Sync points for layer 1 and 2 every 8 frames.
399
400 int ids[4] = { 0, 2, 1, 2 };
401 cfg->ts_periodicity = 4;
402 *flag_periodicity = 8;
403 cfg->ts_number_layers = 3;
404 cfg->ts_rate_decimator[0] = 4;
405 cfg->ts_rate_decimator[1] = 2;
406 cfg->ts_rate_decimator[2] = 1;
407 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
408 // 0=L, 1=GF, 2=ARF.
409 // Layer 0: predict from L and ARF; update L and G.
410 layer_flags[0] =
411 VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF;
412 // Layer 2: sync point: predict from L and ARF; update none.
413 layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_GF |
414 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST |
415 VP8_EFLAG_NO_UPD_ENTROPY;
416 // Layer 1: sync point: predict from L and ARF; update G.
417 layer_flags[2] =
418 VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
419 // Layer 2: predict from L, G, ARF; update none.
420 layer_flags[3] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
421 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ENTROPY;
422 // Layer 0: predict from L and ARF; update L.
423 layer_flags[4] =
424 VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF;
425 // Layer 2: predict from L, G, ARF; update none.
426 layer_flags[5] = layer_flags[3];
427 // Layer 1: predict from L, G, ARF; update G.
428 layer_flags[6] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
429 // Layer 2: predict from L, G, ARF; update none.
430 layer_flags[7] = layer_flags[3];
431 break;
432 }
433 case 11: {
434 // 3-layers structure with one reference frame.
435 // This works same as temporal_layering_mode 3.
436 // This was added to compare with vp9_spatial_svc_encoder.
437
438 // 3-layers, 4-frame period.
439 int ids[4] = { 0, 2, 1, 2 };
440 cfg->ts_periodicity = 4;
441 *flag_periodicity = 4;
442 cfg->ts_number_layers = 3;
443 cfg->ts_rate_decimator[0] = 4;
444 cfg->ts_rate_decimator[1] = 2;
445 cfg->ts_rate_decimator[2] = 1;
446 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
447 // 0=L, 1=GF, 2=ARF, Intra-layer prediction disabled.
448 layer_flags[0] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
449 VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
450 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
451 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
452 layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
453 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
454 layer_flags[3] = VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_REF_ARF |
455 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
456 break;
457 }
458 case 12:
459 default: {
460 // 3-layers structure as in case 10, but no sync/refresh points for
461 // layer 1 and 2.
462 int ids[4] = { 0, 2, 1, 2 };
463 cfg->ts_periodicity = 4;
464 *flag_periodicity = 8;
465 cfg->ts_number_layers = 3;
466 cfg->ts_rate_decimator[0] = 4;
467 cfg->ts_rate_decimator[1] = 2;
468 cfg->ts_rate_decimator[2] = 1;
469 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
470 // 0=L, 1=GF, 2=ARF.
471 // Layer 0: predict from L and ARF; update L.
472 layer_flags[0] =
473 VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF;
474 layer_flags[4] = layer_flags[0];
475 // Layer 1: predict from L, G, ARF; update G.
476 layer_flags[2] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
477 layer_flags[6] = layer_flags[2];
478 // Layer 2: predict from L, G, ARF; update none.
479 layer_flags[1] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
480 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ENTROPY;
481 layer_flags[3] = layer_flags[1];
482 layer_flags[5] = layer_flags[1];
483 layer_flags[7] = layer_flags[1];
484 break;
485 }
486 }
487 }
488
489 int main(int argc, char **argv) {
490 VpxVideoWriter *outfile[VPX_TS_MAX_LAYERS] = { NULL };
491 vpx_codec_ctx_t codec;
492 vpx_codec_enc_cfg_t cfg;
493 int frame_cnt = 0;
494 vpx_image_t raw;
495 vpx_codec_err_t res;
496 unsigned int width;
497 unsigned int height;
498 int speed;
499 int frame_avail;
500 int got_data;
501 int flags = 0;
502 unsigned int i;
503 int pts = 0; // PTS starts at 0.
504 int frame_duration = 1; // 1 timebase tick per frame.
505 int layering_mode = 0;
506 int layer_flags[VPX_TS_MAX_PERIODICITY] = { 0 };
507 int flag_periodicity = 1;
508 #if VPX_ENCODER_ABI_VERSION > (4 + VPX_CODEC_ABI_VERSION)
509 vpx_svc_layer_id_t layer_id = { 0, 0 };
510 #else
511 vpx_svc_layer_id_t layer_id = { 0 };
512 #endif
513 const VpxInterface *encoder = NULL;
514 FILE *infile = NULL;
515 struct RateControlMetrics rc;
516 int64_t cx_time = 0;
517 const int min_args_base = 12;
518 #if CONFIG_VP9_HIGHBITDEPTH
519 vpx_bit_depth_t bit_depth = VPX_BITS_8;
520 int input_bit_depth = 8;
521 const int min_args = min_args_base + 1;
522 #else
523 const int min_args = min_args_base;
524 #endif // CONFIG_VP9_HIGHBITDEPTH
525 double sum_bitrate = 0.0;
526 double sum_bitrate2 = 0.0;
527 double framerate = 30.0;
528
529 exec_name = argv[0];
530 // Check usage and arguments.
531 if (argc < min_args) {
532 #if CONFIG_VP9_HIGHBITDEPTH
533 die("Usage: %s <infile> <outfile> <codec_type(vp8/vp9)> <width> <height> "
534 "<rate_num> <rate_den> <speed> <frame_drop_threshold> <threads> <mode> "
535 "<Rate_0> ... <Rate_nlayers-1> <bit-depth> \n",
536 argv[0]);
537 #else
538 die("Usage: %s <infile> <outfile> <codec_type(vp8/vp9)> <width> <height> "
539 "<rate_num> <rate_den> <speed> <frame_drop_threshold> <threads> <mode> "
540 "<Rate_0> ... <Rate_nlayers-1> \n",
541 argv[0]);
542 #endif // CONFIG_VP9_HIGHBITDEPTH
543 }
544
545 encoder = get_vpx_encoder_by_name(argv[3]);
546 if (!encoder) die("Unsupported codec.");
547
548 printf("Using %s\n", vpx_codec_iface_name(encoder->codec_interface()));
549
550 width = (unsigned int)strtoul(argv[4], NULL, 0);
551 height = (unsigned int)strtoul(argv[5], NULL, 0);
552 if (width < 16 || width % 2 || height < 16 || height % 2) {
553 die("Invalid resolution: %d x %d", width, height);
554 }
555
556 layering_mode = (int)strtol(argv[11], NULL, 0);
557 if (layering_mode < 0 || layering_mode > 13) {
558 die("Invalid layering mode (0..12) %s", argv[11]);
559 }
560
561 if (argc != min_args + mode_to_num_layers[layering_mode]) {
562 die("Invalid number of arguments");
563 }
564
565 #if CONFIG_VP9_HIGHBITDEPTH
566 switch (strtol(argv[argc - 1], NULL, 0)) {
567 case 8:
568 bit_depth = VPX_BITS_8;
569 input_bit_depth = 8;
570 break;
571 case 10:
572 bit_depth = VPX_BITS_10;
573 input_bit_depth = 10;
574 break;
575 case 12:
576 bit_depth = VPX_BITS_12;
577 input_bit_depth = 12;
578 break;
579 default: die("Invalid bit depth (8, 10, 12) %s", argv[argc - 1]);
580 }
581 if (!vpx_img_alloc(
582 &raw, bit_depth == VPX_BITS_8 ? VPX_IMG_FMT_I420 : VPX_IMG_FMT_I42016,
583 width, height, 32)) {
584 die("Failed to allocate image", width, height);
585 }
586 #else
587 if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, width, height, 32)) {
588 die("Failed to allocate image", width, height);
589 }
590 #endif // CONFIG_VP9_HIGHBITDEPTH
591
592 // Populate encoder configuration.
593 res = vpx_codec_enc_config_default(encoder->codec_interface(), &cfg, 0);
594 if (res) {
595 printf("Failed to get config: %s\n", vpx_codec_err_to_string(res));
596 return EXIT_FAILURE;
597 }
598
599 // Update the default configuration with our settings.
600 cfg.g_w = width;
601 cfg.g_h = height;
602
603 #if CONFIG_VP9_HIGHBITDEPTH
604 if (bit_depth != VPX_BITS_8) {
605 cfg.g_bit_depth = bit_depth;
606 cfg.g_input_bit_depth = input_bit_depth;
607 cfg.g_profile = 2;
608 }
609 #endif // CONFIG_VP9_HIGHBITDEPTH
610
611 // Timebase format e.g. 30fps: numerator=1, demoninator = 30.
612 cfg.g_timebase.num = (int)strtol(argv[6], NULL, 0);
613 cfg.g_timebase.den = (int)strtol(argv[7], NULL, 0);
614
615 speed = (int)strtol(argv[8], NULL, 0);
616 if (speed < 0) {
617 die("Invalid speed setting: must be positive");
618 }
619
620 for (i = min_args_base;
621 (int)i < min_args_base + mode_to_num_layers[layering_mode]; ++i) {
622 rc.layer_target_bitrate[i - 12] = (int)strtol(argv[i], NULL, 0);
623 if (strncmp(encoder->name, "vp8", 3) == 0)
624 cfg.ts_target_bitrate[i - 12] = rc.layer_target_bitrate[i - 12];
625 else if (strncmp(encoder->name, "vp9", 3) == 0)
626 cfg.layer_target_bitrate[i - 12] = rc.layer_target_bitrate[i - 12];
627 }
628
629 // Real time parameters.
630 cfg.rc_dropframe_thresh = (unsigned int)strtoul(argv[9], NULL, 0);
631 cfg.rc_end_usage = VPX_CBR;
632 cfg.rc_min_quantizer = 2;
633 cfg.rc_max_quantizer = 56;
634 if (strncmp(encoder->name, "vp9", 3) == 0) cfg.rc_max_quantizer = 52;
635 cfg.rc_undershoot_pct = 50;
636 cfg.rc_overshoot_pct = 50;
637 cfg.rc_buf_initial_sz = 500;
638 cfg.rc_buf_optimal_sz = 600;
639 cfg.rc_buf_sz = 1000;
640
641 // Disable dynamic resizing by default.
642 cfg.rc_resize_allowed = 0;
643
644 // Use 1 thread as default.
645 cfg.g_threads = (unsigned int)strtoul(argv[10], NULL, 0);
646
647 // Enable error resilient mode.
648 cfg.g_error_resilient = 1;
649 cfg.g_lag_in_frames = 0;
650 cfg.kf_mode = VPX_KF_AUTO;
651
652 // Disable automatic keyframe placement.
653 cfg.kf_min_dist = cfg.kf_max_dist = 3000;
654
655 cfg.temporal_layering_mode = VP9E_TEMPORAL_LAYERING_MODE_BYPASS;
656
657 set_temporal_layer_pattern(layering_mode, &cfg, layer_flags,
658 &flag_periodicity);
659
660 set_rate_control_metrics(&rc, &cfg);
661
662 // Target bandwidth for the whole stream.
663 // Set to layer_target_bitrate for highest layer (total bitrate).
664 cfg.rc_target_bitrate = rc.layer_target_bitrate[cfg.ts_number_layers - 1];
665
666 // Open input file.
667 if (!(infile = fopen(argv[1], "rb"))) {
668 die("Failed to open %s for reading", argv[1]);
669 }
670
671 framerate = cfg.g_timebase.den / cfg.g_timebase.num;
672 // Open an output file for each stream.
673 for (i = 0; i < cfg.ts_number_layers; ++i) {
674 char file_name[PATH_MAX];
675 VpxVideoInfo info;
676 info.codec_fourcc = encoder->fourcc;
677 info.frame_width = cfg.g_w;
678 info.frame_height = cfg.g_h;
679 info.time_base.numerator = cfg.g_timebase.num;
680 info.time_base.denominator = cfg.g_timebase.den;
681
682 snprintf(file_name, sizeof(file_name), "%s_%d.ivf", argv[2], i);
683 outfile[i] = vpx_video_writer_open(file_name, kContainerIVF, &info);
684 if (!outfile[i]) die("Failed to open %s for writing", file_name);
685
686 assert(outfile[i] != NULL);
687 }
688 // No spatial layers in this encoder.
689 cfg.ss_number_layers = 1;
690
691 // Initialize codec.
692 #if CONFIG_VP9_HIGHBITDEPTH
693 if (vpx_codec_enc_init(
694 &codec, encoder->codec_interface(), &cfg,
695 bit_depth == VPX_BITS_8 ? 0 : VPX_CODEC_USE_HIGHBITDEPTH))
696 #else
697 if (vpx_codec_enc_init(&codec, encoder->codec_interface(), &cfg, 0))
698 #endif // CONFIG_VP9_HIGHBITDEPTH
699 die_codec(&codec, "Failed to initialize encoder");
700
701 if (strncmp(encoder->name, "vp8", 3) == 0) {
702 vpx_codec_control(&codec, VP8E_SET_CPUUSED, -speed);
703 vpx_codec_control(&codec, VP8E_SET_NOISE_SENSITIVITY, kDenoiserOff);
704 vpx_codec_control(&codec, VP8E_SET_STATIC_THRESHOLD, 1);
705 vpx_codec_control(&codec, VP8E_SET_GF_CBR_BOOST_PCT, 0);
706 } else if (strncmp(encoder->name, "vp9", 3) == 0) {
707 vpx_svc_extra_cfg_t svc_params;
708 memset(&svc_params, 0, sizeof(svc_params));
709 vpx_codec_control(&codec, VP8E_SET_CPUUSED, speed);
710 vpx_codec_control(&codec, VP9E_SET_AQ_MODE, 3);
711 vpx_codec_control(&codec, VP9E_SET_GF_CBR_BOOST_PCT, 0);
712 vpx_codec_control(&codec, VP9E_SET_FRAME_PARALLEL_DECODING, 0);
713 vpx_codec_control(&codec, VP9E_SET_FRAME_PERIODIC_BOOST, 0);
714 vpx_codec_control(&codec, VP9E_SET_NOISE_SENSITIVITY, kDenoiserOff);
715 vpx_codec_control(&codec, VP8E_SET_STATIC_THRESHOLD, 1);
716 vpx_codec_control(&codec, VP9E_SET_TUNE_CONTENT, 0);
717 vpx_codec_control(&codec, VP9E_SET_TILE_COLUMNS, (cfg.g_threads >> 1));
718 if (vpx_codec_control(&codec, VP9E_SET_SVC, layering_mode > 0 ? 1 : 0))
719 die_codec(&codec, "Failed to set SVC");
720 for (i = 0; i < cfg.ts_number_layers; ++i) {
721 svc_params.max_quantizers[i] = cfg.rc_max_quantizer;
722 svc_params.min_quantizers[i] = cfg.rc_min_quantizer;
723 }
724 svc_params.scaling_factor_num[0] = cfg.g_h;
725 svc_params.scaling_factor_den[0] = cfg.g_h;
726 vpx_codec_control(&codec, VP9E_SET_SVC_PARAMETERS, &svc_params);
727 }
728 if (strncmp(encoder->name, "vp8", 3) == 0) {
729 vpx_codec_control(&codec, VP8E_SET_SCREEN_CONTENT_MODE, 0);
730 }
731 vpx_codec_control(&codec, VP8E_SET_TOKEN_PARTITIONS, 1);
732 // This controls the maximum target size of the key frame.
733 // For generating smaller key frames, use a smaller max_intra_size_pct
734 // value, like 100 or 200.
735 {
736 const int max_intra_size_pct = 900;
737 vpx_codec_control(&codec, VP8E_SET_MAX_INTRA_BITRATE_PCT,
738 max_intra_size_pct);
739 }
740
741 frame_avail = 1;
742 while (frame_avail || got_data) {
743 struct vpx_usec_timer timer;
744 vpx_codec_iter_t iter = NULL;
745 const vpx_codec_cx_pkt_t *pkt;
746 #if VPX_ENCODER_ABI_VERSION > (4 + VPX_CODEC_ABI_VERSION)
747 // Update the temporal layer_id. No spatial layers in this test.
748 layer_id.spatial_layer_id = 0;
749 #endif
750 layer_id.temporal_layer_id =
751 cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity];
752 if (strncmp(encoder->name, "vp9", 3) == 0) {
753 vpx_codec_control(&codec, VP9E_SET_SVC_LAYER_ID, &layer_id);
754 } else if (strncmp(encoder->name, "vp8", 3) == 0) {
755 vpx_codec_control(&codec, VP8E_SET_TEMPORAL_LAYER_ID,
756 layer_id.temporal_layer_id);
757 }
758 flags = layer_flags[frame_cnt % flag_periodicity];
759 if (layering_mode == 0) flags = 0;
760 frame_avail = vpx_img_read(&raw, infile);
761 if (frame_avail) ++rc.layer_input_frames[layer_id.temporal_layer_id];
762 vpx_usec_timer_start(&timer);
763 if (vpx_codec_encode(&codec, frame_avail ? &raw : NULL, pts, 1, flags,
764 VPX_DL_REALTIME)) {
765 die_codec(&codec, "Failed to encode frame");
766 }
767 vpx_usec_timer_mark(&timer);
768 cx_time += vpx_usec_timer_elapsed(&timer);
769 // Reset KF flag.
770 if (layering_mode != 7) {
771 layer_flags[0] &= ~VPX_EFLAG_FORCE_KF;
772 }
773 got_data = 0;
774 while ((pkt = vpx_codec_get_cx_data(&codec, &iter))) {
775 got_data = 1;
776 switch (pkt->kind) {
777 case VPX_CODEC_CX_FRAME_PKT:
778 for (i = cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity];
779 i < cfg.ts_number_layers; ++i) {
780 vpx_video_writer_write_frame(outfile[i], pkt->data.frame.buf,
781 pkt->data.frame.sz, pts);
782 ++rc.layer_tot_enc_frames[i];
783 rc.layer_encoding_bitrate[i] += 8.0 * pkt->data.frame.sz;
784 // Keep count of rate control stats per layer (for non-key frames).
785 if (i == cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity] &&
786 !(pkt->data.frame.flags & VPX_FRAME_IS_KEY)) {
787 rc.layer_avg_frame_size[i] += 8.0 * pkt->data.frame.sz;
788 rc.layer_avg_rate_mismatch[i] +=
789 fabs(8.0 * pkt->data.frame.sz - rc.layer_pfb[i]) /
790 rc.layer_pfb[i];
791 ++rc.layer_enc_frames[i];
792 }
793 }
794 // Update for short-time encoding bitrate states, for moving window
795 // of size rc->window, shifted by rc->window / 2.
796 // Ignore first window segment, due to key frame.
797 if (frame_cnt > rc.window_size) {
798 sum_bitrate += 0.001 * 8.0 * pkt->data.frame.sz * framerate;
799 if (frame_cnt % rc.window_size == 0) {
800 rc.window_count += 1;
801 rc.avg_st_encoding_bitrate += sum_bitrate / rc.window_size;
802 rc.variance_st_encoding_bitrate +=
803 (sum_bitrate / rc.window_size) *
804 (sum_bitrate / rc.window_size);
805 sum_bitrate = 0.0;
806 }
807 }
808 // Second shifted window.
809 if (frame_cnt > rc.window_size + rc.window_size / 2) {
810 sum_bitrate2 += 0.001 * 8.0 * pkt->data.frame.sz * framerate;
811 if (frame_cnt > 2 * rc.window_size &&
812 frame_cnt % rc.window_size == 0) {
813 rc.window_count += 1;
814 rc.avg_st_encoding_bitrate += sum_bitrate2 / rc.window_size;
815 rc.variance_st_encoding_bitrate +=
816 (sum_bitrate2 / rc.window_size) *
817 (sum_bitrate2 / rc.window_size);
818 sum_bitrate2 = 0.0;
819 }
820 }
821 break;
822 default: break;
823 }
824 }
825 ++frame_cnt;
826 pts += frame_duration;
827 }
828 fclose(infile);
829 printout_rate_control_summary(&rc, &cfg, frame_cnt);
830 printf("\n");
831 printf("Frame cnt and encoding time/FPS stats for encoding: %d %f %f \n",
832 frame_cnt, 1000 * (float)cx_time / (double)(frame_cnt * 1000000),
833 1000000 * (double)frame_cnt / (double)cx_time);
834
835 if (vpx_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec");
836
837 // Try to rewrite the output file headers with the actual frame count.
838 for (i = 0; i < cfg.ts_number_layers; ++i) vpx_video_writer_close(outfile[i]);
839
840 vpx_img_free(&raw);
841 return EXIT_SUCCESS;
842 }
vpx_codec_enc_cfg::rc_buf_initial_sz
unsigned int rc_buf_initial_sz
Decoder Buffer Initial Size.
Definition: vpx_encoder.h:559
vpx_svc_parameters::min_quantizers
int min_quantizers[12]
Definition: vpx_encoder.h:715
vpx_codec_enc_cfg::ts_number_layers
unsigned int ts_number_layers
Number of temporal coding layers.
Definition: vpx_encoder.h:656
VP8E_SET_CPUUSED
Codec control function to set encoder internal speed settings.
Definition: vp8cx.h:155
VPX_MAX_LAYERS
#define VPX_MAX_LAYERS
Definition: vpx_encoder.h:46
VP8_EFLAG_NO_REF_LAST
#define VP8_EFLAG_NO_REF_LAST
Don&#39;t reference the last frame.
Definition: vp8cx.h:58
VP8_EFLAG_NO_UPD_GF
#define VP8_EFLAG_NO_UPD_GF
Don&#39;t update the golden frame.
Definition: vp8cx.h:88
vpx_image
Image Descriptor.
Definition: vpx_image.h:88
vpx_encoder.h
Describes the encoder algorithm interface to applications.
vpx_codec_iface_name
const char * vpx_codec_iface_name(vpx_codec_iface_t *iface)
Return the name for a given interface.
vpx_codec_err_to_string
const char * vpx_codec_err_to_string(vpx_codec_err_t err)
Convert error number to printable string.
VPX_TS_MAX_LAYERS
#define VPX_TS_MAX_LAYERS
Definition: vpx_encoder.h:40
VP9E_SET_TUNE_CONTENT
Codec control function to set content type.
Definition: vp8cx.h:449
vpx_codec_enc_cfg::g_timebase
struct vpx_rational g_timebase
Stream timebase units.
Definition: vpx_encoder.h:363
VPX_CBR
Definition: vpx_encoder.h:250
VP9E_SET_NOISE_SENSITIVITY
Codec control function to set noise sensitivity.
Definition: vp8cx.h:414
vpx_codec_enc_cfg::layer_target_bitrate
unsigned int layer_target_bitrate[12]
Target bitrate for each spatial/temporal layer.
Definition: vpx_encoder.h:696
vpx_codec_enc_cfg::rc_buf_sz
unsigned int rc_buf_sz
Decoder Buffer Size.
Definition: vpx_encoder.h:550
VP8_EFLAG_NO_REF_GF
#define VP8_EFLAG_NO_REF_GF
Don&#39;t reference the golden frame.
Definition: vp8cx.h:66
vpx_codec_enc_cfg::g_input_bit_depth
unsigned int g_input_bit_depth
Bit-depth of the input frames.
Definition: vpx_encoder.h:349
vpx_codec_enc_cfg::kf_mode
enum vpx_kf_mode kf_mode
Keyframe placement mode.
Definition: vpx_encoder.h:608
vpx_rational::den
int den
Definition: vpx_encoder.h:237
vpx_codec_encode
vpx_codec_err_t vpx_codec_encode(vpx_codec_ctx_t *ctx, const vpx_image_t *img, vpx_codec_pts_t pts, unsigned long duration, vpx_enc_frame_flags_t flags, unsigned long deadline)
Encode a frame.
vpx_codec_enc_cfg::rc_max_quantizer
unsigned int rc_max_quantizer
Maximum (Worst Quality) Quantizer.
Definition: vpx_encoder.h:507
vpx_codec_enc_cfg::rc_min_quantizer
unsigned int rc_min_quantizer
Minimum (Best Quality) Quantizer.
Definition: vpx_encoder.h:497
vpx_codec_enc_cfg::kf_max_dist
unsigned int kf_max_dist
Keyframe maximum interval.
Definition: vpx_encoder.h:626
vpx_codec_enc_cfg::g_lag_in_frames
unsigned int g_lag_in_frames
Allow lagged encoding.
Definition: vpx_encoder.h:392
vpx_codec_enc_cfg
Encoder configuration structure.
Definition: vpx_encoder.h:285
VPX_KF_AUTO
Definition: vpx_encoder.h:265
vpx_svc_layer_id::spatial_layer_id
int spatial_layer_id
Definition: vp8cx.h:699
VP8E_SET_MAX_INTRA_BITRATE_PCT
Codec control function to set Max data rate for Intra frames.
Definition: vp8cx.h:251
VPX_CODEC_USE_HIGHBITDEPTH
#define VPX_CODEC_USE_HIGHBITDEPTH
Definition: vpx_encoder.h:100
vpx_codec_cx_pkt
Encoder output packet.
Definition: vpx_encoder.h:175
vpx_codec_enc_cfg::rc_overshoot_pct
unsigned int rc_overshoot_pct
Rate control adaptation overshoot control.
Definition: vpx_encoder.h:535
VP9E_SET_SVC_PARAMETERS
Codec control function to set parameters for SVC.
Definition: vp8cx.h:431
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:670
vpx_codec_enc_cfg::rc_buf_optimal_sz
unsigned int rc_buf_optimal_sz
Decoder Buffer Optimal Size.
Definition: vpx_encoder.h:568
vpx_codec_enc_cfg::kf_min_dist
unsigned int kf_min_dist
Keyframe minimum interval.
Definition: vpx_encoder.h:617
vpx_codec_enc_cfg::g_profile
unsigned int g_profile
Bitstream profile to use.
Definition: vpx_encoder.h:315
VP9E_SET_TILE_COLUMNS
Codec control function to set number of tile columns.
Definition: vp8cx.h:344
vpx_codec_enc_cfg::ts_layer_id
unsigned int ts_layer_id[16]
Template defining the membership of frames to temporal layers.
Definition: vpx_encoder.h:688
vpx_codec_cx_pkt::frame
struct vpx_codec_cx_pkt::@1::@2 frame
vpx_img_alloc
vpx_image_t * vpx_img_alloc(vpx_image_t *img, vpx_img_fmt_t fmt, unsigned int d_w, unsigned int d_h, unsigned int align)
Open a descriptor, allocating storage for the underlying image.
VPX_IMG_FMT_I420
Definition: vpx_image.h:55
vpx_svc_parameters::scaling_factor_num
int scaling_factor_num[12]
Definition: vpx_encoder.h:716
vpx_codec_enc_cfg::g_w
unsigned int g_w
Width of the frame.
Definition: vpx_encoder.h:324
vpx_codec_enc_cfg::ts_target_bitrate
unsigned int ts_target_bitrate[5]
Target bitrate for each temporal layer.
Definition: vpx_encoder.h:663
vpx_bit_depth_t
enum vpx_bit_depth vpx_bit_depth_t
Bit depth for codecThis enumeration determines the bit depth of the codec.
vpx_codec_enc_cfg::rc_undershoot_pct
unsigned int rc_undershoot_pct
Rate control adaptation undershoot control.
Definition: vpx_encoder.h:523
VP9E_SET_AQ_MODE
Codec control function to set adaptive quantization mode.
Definition: vp8cx.h:391
vpx_codec_enc_cfg::g_h
unsigned int g_h
Height of the frame.
Definition: vpx_encoder.h:333
vpx_codec_cx_pkt::kind
enum vpx_codec_cx_pkt_kind kind
Definition: vpx_encoder.h:176
vpx_codec_enc_cfg::rc_dropframe_thresh
unsigned int rc_dropframe_thresh
Temporal resampling configuration, if supported by the codec.
Definition: vpx_encoder.h:414
VP8E_SET_GF_CBR_BOOST_PCT
Boost percentage for Golden Frame in CBR mode.
Definition: vp8cx.h:579
vpx_svc_layer_id
vp9 svc layer parameters
Definition: vp8cx.h:698
VP8E_SET_TEMPORAL_LAYER_ID
Codec control function to set the temporal layer id.
Definition: vp8cx.h:298
VP8_EFLAG_NO_UPD_LAST
#define VP8_EFLAG_NO_UPD_LAST
Don&#39;t update the last frame.
Definition: vp8cx.h:81
vpx_img_free
void vpx_img_free(vpx_image_t *img)
Close an image descriptor.
VP8E_SET_TOKEN_PARTITIONS
Codec control function to set the number of token partitions.
Definition: vp8cx.h:188
vpx_codec_enc_cfg::rc_target_bitrate
unsigned int rc_target_bitrate
Target data rate.
Definition: vpx_encoder.h:483
VPX_DL_REALTIME
#define VPX_DL_REALTIME
deadline parameter analogous to VPx REALTIME mode.
Definition: vpx_encoder.h:842
vpx_rational::num
int num
Definition: vpx_encoder.h:236
VP8E_SET_NOISE_SENSITIVITY
control function to set noise sensitivity
Definition: vp8cx.h:170
VPX_BITS_12
Definition: vpx_codec.h:215
VP9E_SET_GF_CBR_BOOST_PCT
Boost percentage for Golden Frame in CBR mode.
Definition: vp8cx.h:287
vpx_codec_enc_cfg::g_threads
unsigned int g_threads
Maximum number of threads to use.
Definition: vpx_encoder.h:305
vpx_codec_enc_cfg::ss_number_layers
unsigned int ss_number_layers
Number of spatial coding layers.
Definition: vpx_encoder.h:636
vpx_codec_enc_cfg::g_bit_depth
vpx_bit_depth_t g_bit_depth
Bit-depth of the codec.
Definition: vpx_encoder.h:341
vp8cx.h
Provides definitions for using VP8 or VP9 encoder algorithm within the vpx Codec Interface.
vpx_codec_enc_init
#define vpx_codec_enc_init(ctx, iface, cfg, flags)
Convenience macro for vpx_codec_enc_init_ver()
Definition: vpx_encoder.h:753
VP8E_SET_SCREEN_CONTENT_MODE
Codec control function to set encoder screen content mode.
Definition: vp8cx.h:306
vpx_codec_enc_cfg::rc_resize_allowed
unsigned int rc_resize_allowed
Enable/disable spatial resampling, if supported by the codec.
Definition: vpx_encoder.h:423
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:609
vpx_codec_err_t
vpx_codec_err_t
Algorithm return codes.
Definition: vpx_codec.h:89
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::data
union vpx_codec_cx_pkt::@1 data
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:705
vpx_svc_layer_id::temporal_layer_id
int temporal_layer_id
Definition: vp8cx.h:700
VP9E_SET_FRAME_PERIODIC_BOOST
Codec control function to enable/disable periodic Q boost.
Definition: vp8cx.h:406
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 reserved)
Get a default configuration.
VPX_TS_MAX_PERIODICITY
#define VPX_TS_MAX_PERIODICITY
Definition: vpx_encoder.h:37
VP9E_SET_SVC
Codec control function to turn on/off SVC in encoder.
Definition: vp8cx.h:423
vpx_codec_control
#define vpx_codec_control(ctx, id, data)
vpx_codec_control wrapper macro
Definition: vpx_codec.h:399
vpx_codec_enc_cfg::ts_periodicity
unsigned int ts_periodicity
Length of the sequence defining frame temporal layer membership.
Definition: vpx_encoder.h:679
VP8_EFLAG_NO_REF_ARF
#define VP8_EFLAG_NO_REF_ARF
Don&#39;t reference the alternate reference frame.
Definition: vp8cx.h:74
vpx_codec_destroy
vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx)
Destroy a codec instance.
VP9E_SET_FRAME_PARALLEL_DECODING
Codec control function to enable frame parallel decoding feature.
Definition: vp8cx.h:378
VPX_BITS_8
Definition: vpx_codec.h:213
vpx_svc_parameters::scaling_factor_den
int scaling_factor_den[12]
Definition: vpx_encoder.h:717
VP8E_SET_STATIC_THRESHOLD
Codec control function to set the threshold for MBs treated static.
Definition: vp8cx.h:182
VPX_FRAME_IS_KEY
#define VPX_FRAME_IS_KEY
Definition: vpx_encoder.h:126
VPX_BITS_10
Definition: vpx_codec.h:214
VPX_EFLAG_FORCE_KF
#define VPX_EFLAG_FORCE_KF
Definition: vpx_encoder.h:277
vpx_codec_iter_t
const void * vpx_codec_iter_t
Iterator.
Definition: vpx_codec.h:182
VPX_CODEC_CX_FRAME_PKT
Definition: vpx_encoder.h:157
vpx_svc_parameters::max_quantizers
int max_quantizers[12]
Definition: vpx_encoder.h:714
vpx_svc_parameters
vp9 svc extra configure parameters
Definition: vpx_encoder.h:713
vpx_codec_enc_cfg::g_error_resilient
vpx_codec_er_flags_t g_error_resilient
Enable error resilient modes.
Definition: vpx_encoder.h:371
VP8_EFLAG_NO_UPD_ARF
#define VP8_EFLAG_NO_UPD_ARF
Don&#39;t update the alternate reference frame.
Definition: vp8cx.h:95
VP8_EFLAG_NO_UPD_ENTROPY
#define VP8_EFLAG_NO_UPD_ENTROPY
Disable entropy update.
Definition: vp8cx.h:116
VP9E_SET_SVC_LAYER_ID
Codec control function to set svc layer for spatial and temporal.
Definition: vp8cx.h:440
vpx_codec_enc_cfg::rc_end_usage
enum vpx_rc_mode rc_end_usage
Rate control algorithm to use.
Definition: vpx_encoder.h:463
vpx_codec_ctx
Codec context structure.
Definition: vpx_codec.h:192