WebM Codec SDK: vpx_temporal_svc_encoder

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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) {
32 exit(EXIT_FAILURE);
33 }
34
35 // Denoiser states, for temporal denoising.
36 enum denoiserState {
37 kDenoiserOff,
38 kDenoiserOnYOnly,
39 kDenoiserOnYUV,
40 kDenoiserOnYUVAggressive,
41 kDenoiserOnAdaptive
42 };
43
44 static int mode_to_num_layers[12] = {1, 2, 2, 3, 3, 3, 3, 5, 2, 3, 3, 3};
45
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];
64 // Average of the short-time encoder actual bitrate.
65 // TODO(marpan): Should we add these short-time stats for each layer?
66 double avg_st_encoding_bitrate;
67 // Variance of the short-time encoder actual bitrate.
68 double variance_st_encoding_bitrate;
69 // Window (number of frames) for computing short-timee encoding bitrate.
70 int window_size;
71 // Number of window measurements.
72 int window_count;
73 int layer_target_bitrate[VPX_MAX_LAYERS];
74 };
75
76 // Note: these rate control metrics assume only 1 key frame in the
77 // sequence (i.e., first frame only). So for temporal pattern# 7
78 // (which has key frame for every frame on base layer), the metrics
79 // computation will be off/wrong.
80 // TODO(marpan): Update these metrics to account for multiple key frames
81 // in the stream.
82 static void set_rate_control_metrics(struct RateControlMetrics *rc,
83 vpx_codec_enc_cfg_t *cfg) {
84 unsigned int i = 0;
85 // Set the layer (cumulative) framerate and the target layer (non-cumulative)
86 // per-frame-bandwidth, for the rate control encoding stats below.
87 const double framerate = cfg->g_timebase.den / cfg->g_timebase.num;
88 rc->layer_framerate[0] = framerate / cfg->ts_rate_decimator[0];
89 rc->layer_pfb[0] = 1000.0 * rc->layer_target_bitrate[0] /
90 rc->layer_framerate[0];
91 for (i = 0; i < cfg->ts_number_layers; ++i) {
92 if (i > 0) {
93 rc->layer_framerate[i] = framerate / cfg->ts_rate_decimator[i];
94 rc->layer_pfb[i] = 1000.0 *
95 (rc->layer_target_bitrate[i] - rc->layer_target_bitrate[i - 1]) /
96 (rc->layer_framerate[i] - rc->layer_framerate[i - 1]);
97 }
98 rc->layer_input_frames[i] = 0;
99 rc->layer_enc_frames[i] = 0;
100 rc->layer_tot_enc_frames[i] = 0;
101 rc->layer_encoding_bitrate[i] = 0.0;
102 rc->layer_avg_frame_size[i] = 0.0;
103 rc->layer_avg_rate_mismatch[i] = 0.0;
104 }
105 rc->window_count = 0;
106 rc->window_size = 15;
107 rc->avg_st_encoding_bitrate = 0.0;
108 rc->variance_st_encoding_bitrate = 0.0;
109 }
110
111 static void printout_rate_control_summary(struct RateControlMetrics *rc,
112 vpx_codec_enc_cfg_t *cfg,
113 int frame_cnt) {
114 unsigned int i = 0;
115 int tot_num_frames = 0;
116 double perc_fluctuation = 0.0;
117 printf("Total number of processed frames: %d\n\n", frame_cnt -1);
118 printf("Rate control layer stats for %d layer(s):\n\n",
119 cfg->ts_number_layers);
120 for (i = 0; i < cfg->ts_number_layers; ++i) {
121 const int num_dropped = (i > 0) ?
122 (rc->layer_input_frames[i] - rc->layer_enc_frames[i]) :
123 (rc->layer_input_frames[i] - rc->layer_enc_frames[i] - 1);
124 tot_num_frames += rc->layer_input_frames[i];
125 rc->layer_encoding_bitrate[i] = 0.001 * rc->layer_framerate[i] *
126 rc->layer_encoding_bitrate[i] / tot_num_frames;
127 rc->layer_avg_frame_size[i] = rc->layer_avg_frame_size[i] /
128 rc->layer_enc_frames[i];
129 rc->layer_avg_rate_mismatch[i] = 100.0 * rc->layer_avg_rate_mismatch[i] /
130 rc->layer_enc_frames[i];
131 printf("For layer#: %d \n", i);
132 printf("Bitrate (target vs actual): %d %f \n", rc->layer_target_bitrate[i],
133 rc->layer_encoding_bitrate[i]);
134 printf("Average frame size (target vs actual): %f %f \n", rc->layer_pfb[i],
135 rc->layer_avg_frame_size[i]);
136 printf("Average rate_mismatch: %f \n", rc->layer_avg_rate_mismatch[i]);
137 printf("Number of input frames, encoded (non-key) frames, "
138 "and perc dropped frames: %d %d %f \n", rc->layer_input_frames[i],
139 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,
152 sqrt(rc->variance_st_encoding_bitrate),
153 perc_fluctuation);
154 if ((frame_cnt - 1) != tot_num_frames)
155 die("Error: Number of input frames not equal to output! \n");
156 }
157
158 // Temporal scaling parameters:
159 // NOTE: The 3 prediction frames cannot be used interchangeably due to
160 // differences in the way they are handled throughout the code. The
161 // frames should be allocated to layers in the order LAST, GF, ARF.
162 // Other combinations work, but may produce slightly inferior results.
163 static void set_temporal_layer_pattern(int layering_mode,
164 vpx_codec_enc_cfg_t *cfg,
165 int *layer_flags,
166 int *flag_periodicity) {
167 switch (layering_mode) {
168 case 0: {
169 // 1-layer.
170 int ids[1] = {0};
171 cfg->ts_periodicity = 1;
172 *flag_periodicity = 1;
173 cfg->ts_number_layers = 1;
174 cfg->ts_rate_decimator[0] = 1;
175 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
176 // Update L only.
177 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF |
178 VP8_EFLAG_NO_UPD_ARF;
179 break;
180 }
181 case 1: {
182 // 2-layers, 2-frame period.
183 int ids[2] = {0, 1};
184 cfg->ts_periodicity = 2;
185 *flag_periodicity = 2;
186 cfg->ts_number_layers = 2;
187 cfg->ts_rate_decimator[0] = 2;
188 cfg->ts_rate_decimator[1] = 1;
189 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
190 #if 1
191 // 0=L, 1=GF, Intra-layer prediction enabled.
192 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF |
193 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
194 layer_flags[1] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST |
195 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 | VP8_EFLAG_NO_REF_ARF;
200 layer_flags[1] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST |
201 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_REF_LAST;
202 #endif
203 break;
204 }
205 case 2: {
206 // 2-layers, 3-frame period.
207 int ids[3] = {0, 1, 1};
208 cfg->ts_periodicity = 3;
209 *flag_periodicity = 3;
210 cfg->ts_number_layers = 2;
211 cfg->ts_rate_decimator[0] = 3;
212 cfg->ts_rate_decimator[1] = 1;
213 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
214 // 0=L, 1=GF, Intra-layer prediction enabled.
215 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
216 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
217 layer_flags[1] =
218 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
219 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
220 break;
221 }
222 case 3: {
223 // 3-layers, 6-frame period.
224 int ids[6] = {0, 2, 2, 1, 2, 2};
225 cfg->ts_periodicity = 6;
226 *flag_periodicity = 6;
227 cfg->ts_number_layers = 3;
228 cfg->ts_rate_decimator[0] = 6;
229 cfg->ts_rate_decimator[1] = 3;
230 cfg->ts_rate_decimator[2] = 1;
231 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
232 // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled.
233 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
234 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
235 layer_flags[3] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_ARF |
236 VP8_EFLAG_NO_UPD_LAST;
237 layer_flags[1] =
238 layer_flags[2] =
239 layer_flags[4] =
240 layer_flags[5] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_LAST;
241 break;
242 }
243 case 4: {
244 // 3-layers, 4-frame period.
245 int ids[4] = {0, 2, 1, 2};
246 cfg->ts_periodicity = 4;
247 *flag_periodicity = 4;
248 cfg->ts_number_layers = 3;
249 cfg->ts_rate_decimator[0] = 4;
250 cfg->ts_rate_decimator[1] = 2;
251 cfg->ts_rate_decimator[2] = 1;
252 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
253 // 0=L, 1=GF, 2=ARF, Intra-layer prediction disabled.
254 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
255 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
256 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
257 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
258 layer_flags[1] =
259 layer_flags[3] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST |
260 VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
261 break;
262 }
263 case 5: {
264 // 3-layers, 4-frame period.
265 int ids[4] = {0, 2, 1, 2};
266 cfg->ts_periodicity = 4;
267 *flag_periodicity = 4;
268 cfg->ts_number_layers = 3;
269 cfg->ts_rate_decimator[0] = 4;
270 cfg->ts_rate_decimator[1] = 2;
271 cfg->ts_rate_decimator[2] = 1;
272 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
273 // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled in layer 1, disabled
274 // in layer 2.
275 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
276 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
277 layer_flags[2] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST |
278 VP8_EFLAG_NO_UPD_ARF;
279 layer_flags[1] =
280 layer_flags[3] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST |
281 VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
282 break;
283 }
284 case 6: {
285 // 3-layers, 4-frame period.
286 int ids[4] = {0, 2, 1, 2};
287 cfg->ts_periodicity = 4;
288 *flag_periodicity = 4;
289 cfg->ts_number_layers = 3;
290 cfg->ts_rate_decimator[0] = 4;
291 cfg->ts_rate_decimator[1] = 2;
292 cfg->ts_rate_decimator[2] = 1;
293 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
294 // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled.
295 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
296 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
297 layer_flags[2] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST |
298 VP8_EFLAG_NO_UPD_ARF;
299 layer_flags[1] =
300 layer_flags[3] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
301 break;
302 }
303 case 7: {
304 // NOTE: Probably of academic interest only.
305 // 5-layers, 16-frame period.
306 int ids[16] = {0, 4, 3, 4, 2, 4, 3, 4, 1, 4, 3, 4, 2, 4, 3, 4};
307 cfg->ts_periodicity = 16;
308 *flag_periodicity = 16;
309 cfg->ts_number_layers = 5;
310 cfg->ts_rate_decimator[0] = 16;
311 cfg->ts_rate_decimator[1] = 8;
312 cfg->ts_rate_decimator[2] = 4;
313 cfg->ts_rate_decimator[3] = 2;
314 cfg->ts_rate_decimator[4] = 1;
315 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
316 layer_flags[0] = VPX_EFLAG_FORCE_KF;
317 layer_flags[1] =
318 layer_flags[3] =
319 layer_flags[5] =
320 layer_flags[7] =
321 layer_flags[9] =
322 layer_flags[11] =
323 layer_flags[13] =
324 layer_flags[15] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF |
325 VP8_EFLAG_NO_UPD_ARF;
326 layer_flags[2] =
327 layer_flags[6] =
328 layer_flags[10] =
329 layer_flags[14] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_GF;
330 layer_flags[4] =
331 layer_flags[12] = VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_UPD_ARF;
332 layer_flags[8] = VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_REF_GF;
333 break;
334 }
335 case 8: {
336 // 2-layers, with sync point at first frame of layer 1.
337 int ids[2] = {0, 1};
338 cfg->ts_periodicity = 2;
339 *flag_periodicity = 8;
340 cfg->ts_number_layers = 2;
341 cfg->ts_rate_decimator[0] = 2;
342 cfg->ts_rate_decimator[1] = 1;
343 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
344 // 0=L, 1=GF.
345 // ARF is used as predictor for all frames, and is only updated on
346 // key frame. Sync point every 8 frames.
347
348 // Layer 0: predict from L and ARF, update L and G.
349 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
350 VP8_EFLAG_NO_UPD_ARF;
351 // Layer 1: sync point: predict from L and ARF, and update G.
352 layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_LAST |
353 VP8_EFLAG_NO_UPD_ARF;
354 // Layer 0, predict from L and ARF, update L.
355 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_GF |
356 VP8_EFLAG_NO_UPD_ARF;
357 // Layer 1: predict from L, G and ARF, and update G.
358 layer_flags[3] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST |
359 VP8_EFLAG_NO_UPD_ENTROPY;
360 // Layer 0.
361 layer_flags[4] = layer_flags[2];
362 // Layer 1.
363 layer_flags[5] = layer_flags[3];
364 // Layer 0.
365 layer_flags[6] = layer_flags[4];
366 // Layer 1.
367 layer_flags[7] = layer_flags[5];
368 break;
369 }
370 case 9: {
371 // 3-layers: Sync points for layer 1 and 2 every 8 frames.
372 int ids[4] = {0, 2, 1, 2};
373 cfg->ts_periodicity = 4;
374 *flag_periodicity = 8;
375 cfg->ts_number_layers = 3;
376 cfg->ts_rate_decimator[0] = 4;
377 cfg->ts_rate_decimator[1] = 2;
378 cfg->ts_rate_decimator[2] = 1;
379 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
380 // 0=L, 1=GF, 2=ARF.
381 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF |
382 VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
383 layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
384 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
385 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
386 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF;
387 layer_flags[3] =
388 layer_flags[5] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
389 layer_flags[4] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF |
390 VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
391 layer_flags[6] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST |
392 VP8_EFLAG_NO_UPD_ARF;
393 layer_flags[7] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF |
394 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_ENTROPY;
395 break;
396 }
397 case 10: {
398 // 3-layers structure where ARF is used as predictor for all frames,
399 // and is only updated on key frame.
400 // Sync points for layer 1 and 2 every 8 frames.
401
402 int ids[4] = {0, 2, 1, 2};
403 cfg->ts_periodicity = 4;
404 *flag_periodicity = 8;
405 cfg->ts_number_layers = 3;
406 cfg->ts_rate_decimator[0] = 4;
407 cfg->ts_rate_decimator[1] = 2;
408 cfg->ts_rate_decimator[2] = 1;
409 memcpy(cfg->ts_layer_id, ids, sizeof(ids));
410 // 0=L, 1=GF, 2=ARF.
411 // Layer 0: predict from L and ARF; update L and G.
412 layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_ARF |
413 VP8_EFLAG_NO_REF_GF;
414 // Layer 2: sync point: predict from L and ARF; update none.
415 layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_GF |
416 VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST |
417 VP8_EFLAG_NO_UPD_ENTROPY;
418 // Layer 1: sync point: predict from L and ARF; update G.
419 layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_ARF |
420 VP8_EFLAG_NO_UPD_LAST;
421 // Layer 2: predict from L, G, ARF; update none.
422 layer_flags[3] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
423 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ENTROPY;
424 // Layer 0: predict from L and ARF; update L.
425 layer_flags[4] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
426 VP8_EFLAG_NO_REF_GF;
427 // Layer 2: predict from L, G, ARF; update none.
428 layer_flags[5] = layer_flags[3];
429 // Layer 1: predict from L, G, ARF; update G.
430 layer_flags[6] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
431 // Layer 2: predict from L, G, ARF; update none.
432 layer_flags[7] = layer_flags[3];
433 break;
434 }
435 case 11:
436 default: {
437 // 3-layers structure as in case 10, but no sync/refresh points for
438 // layer 1 and 2.
439 int ids[4] = {0, 2, 1, 2};
440 cfg->ts_periodicity = 4;
441 *flag_periodicity = 8;
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.
448 // Layer 0: predict from L and ARF; update L.
449 layer_flags[0] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
450 VP8_EFLAG_NO_REF_GF;
451 layer_flags[4] = layer_flags[0];
452 // Layer 1: predict from L, G, ARF; update G.
453 layer_flags[2] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST;
454 layer_flags[6] = layer_flags[2];
455 // Layer 2: predict from L, G, ARF; update none.
456 layer_flags[1] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
457 VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ENTROPY;
458 layer_flags[3] = layer_flags[1];
459 layer_flags[5] = layer_flags[1];
460 layer_flags[7] = layer_flags[1];
461 break;
462 }
463 }
464 }
465
466 int main(int argc, char **argv) {
467 VpxVideoWriter *outfile[VPX_TS_MAX_LAYERS] = {NULL};
468 vpx_codec_ctx_t codec;
469 vpx_codec_enc_cfg_t cfg;
470 int frame_cnt = 0;
471 vpx_image_t raw;
472 vpx_codec_err_t res;
473 unsigned int width;
474 unsigned int height;
475 int speed;
476 int frame_avail;
477 int got_data;
478 int flags = 0;
479 unsigned int i;
480 int pts = 0; // PTS starts at 0.
481 int frame_duration = 1; // 1 timebase tick per frame.
482 int layering_mode = 0;
483 int layer_flags[VPX_TS_MAX_PERIODICITY] = {0};
484 int flag_periodicity = 1;
485 #if VPX_ENCODER_ABI_VERSION > (4 + VPX_CODEC_ABI_VERSION)
486 vpx_svc_layer_id_t layer_id = {0, 0};
487 #else
488 vpx_svc_layer_id_t layer_id = {0};
489 #endif
490 const VpxInterface *encoder = NULL;
491 FILE *infile = NULL;
492 struct RateControlMetrics rc;
493 int64_t cx_time = 0;
494 const int min_args_base = 11;
495 #if CONFIG_VP9_HIGHBITDEPTH
496 vpx_bit_depth_t bit_depth = VPX_BITS_8;
497 int input_bit_depth = 8;
498 const int min_args = min_args_base + 1;
499 #else
500 const int min_args = min_args_base;
501 #endif // CONFIG_VP9_HIGHBITDEPTH
502 double sum_bitrate = 0.0;
503 double sum_bitrate2 = 0.0;
504 double framerate = 30.0;
505
506 exec_name = argv[0];
507 // Check usage and arguments.
508 if (argc < min_args) {
509 #if CONFIG_VP9_HIGHBITDEPTH
510 die("Usage: %s <infile> <outfile> <codec_type(vp8/vp9)> <width> <height> "
511 "<rate_num> <rate_den> <speed> <frame_drop_threshold> <mode> "
512 "<Rate_0> ... <Rate_nlayers-1> <bit-depth> \n", argv[0]);
513 #else
514 die("Usage: %s <infile> <outfile> <codec_type(vp8/vp9)> <width> <height> "
515 "<rate_num> <rate_den> <speed> <frame_drop_threshold> <mode> "
516 "<Rate_0> ... <Rate_nlayers-1> \n", argv[0]);
517 #endif // CONFIG_VP9_HIGHBITDEPTH
518 }
519
520 encoder = get_vpx_encoder_by_name(argv[3]);
521 if (!encoder)
522 die("Unsupported codec.");
523
524 printf("Using %s\n", vpx_codec_iface_name(encoder->codec_interface()));
525
526 width = strtol(argv[4], NULL, 0);
527 height = strtol(argv[5], NULL, 0);
528 if (width < 16 || width % 2 || height < 16 || height % 2) {
529 die("Invalid resolution: %d x %d", width, height);
530 }
531
532 layering_mode = strtol(argv[10], NULL, 0);
533 if (layering_mode < 0 || layering_mode > 12) {
534 die("Invalid layering mode (0..12) %s", argv[10]);
535 }
536
537 if (argc != min_args + mode_to_num_layers[layering_mode]) {
538 die("Invalid number of arguments");
539 }
540
541 #if CONFIG_VP9_HIGHBITDEPTH
542 switch (strtol(argv[argc-1], NULL, 0)) {
543 case 8:
544 bit_depth = VPX_BITS_8;
545 input_bit_depth = 8;
546 break;
547 case 10:
548 bit_depth = VPX_BITS_10;
549 input_bit_depth = 10;
550 break;
551 case 12:
552 bit_depth = VPX_BITS_12;
553 input_bit_depth = 12;
554 break;
555 default:
556 die("Invalid bit depth (8, 10, 12) %s", argv[argc-1]);
557 }
558 if (!vpx_img_alloc(&raw,
559 bit_depth == VPX_BITS_8 ? VPX_IMG_FMT_I420 :
560 VPX_IMG_FMT_I42016,
561 width, height, 32)) {
562 die("Failed to allocate image", width, height);
563 }
564 #else
565 if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, width, height, 32)) {
566 die("Failed to allocate image", width, height);
567 }
568 #endif // CONFIG_VP9_HIGHBITDEPTH
569
570 // Populate encoder configuration.
571 res = vpx_codec_enc_config_default(encoder->codec_interface(), &cfg, 0);
572 if (res) {
573 printf("Failed to get config: %s\n", vpx_codec_err_to_string(res));
574 return EXIT_FAILURE;
575 }
576
577 // Update the default configuration with our settings.
578 cfg.g_w = width;
579 cfg.g_h = height;
580
581 #if CONFIG_VP9_HIGHBITDEPTH
582 if (bit_depth != VPX_BITS_8) {
583 cfg.g_bit_depth = bit_depth;
584 cfg.g_input_bit_depth = input_bit_depth;
585 cfg.g_profile = 2;
586 }
587 #endif // CONFIG_VP9_HIGHBITDEPTH
588
589 // Timebase format e.g. 30fps: numerator=1, demoninator = 30.
590 cfg.g_timebase.num = strtol(argv[6], NULL, 0);
591 cfg.g_timebase.den = strtol(argv[7], NULL, 0);
592
593 speed = strtol(argv[8], NULL, 0);
594 if (speed < 0) {
595 die("Invalid speed setting: must be positive");
596 }
597
598 for (i = min_args_base;
599 (int)i < min_args_base + mode_to_num_layers[layering_mode];
600 ++i) {
601 rc.layer_target_bitrate[i - 11] = strtol(argv[i], NULL, 0);
602 if (strncmp(encoder->name, "vp8", 3) == 0)
603 cfg.ts_target_bitrate[i - 11] = rc.layer_target_bitrate[i - 11];
604 else if (strncmp(encoder->name, "vp9", 3) == 0)
605 cfg.layer_target_bitrate[i - 11] = rc.layer_target_bitrate[i - 11];
606 }
607
608 // Real time parameters.
609 cfg.rc_dropframe_thresh = strtol(argv[9], NULL, 0);
610 cfg.rc_end_usage = VPX_CBR;
611 cfg.rc_min_quantizer = 2;
612 cfg.rc_max_quantizer = 56;
613 if (strncmp(encoder->name, "vp9", 3) == 0)
614 cfg.rc_max_quantizer = 52;
615 cfg.rc_undershoot_pct = 50;
616 cfg.rc_overshoot_pct = 50;
617 cfg.rc_buf_initial_sz = 500;
618 cfg.rc_buf_optimal_sz = 600;
619 cfg.rc_buf_sz = 1000;
620
621 // Disable dynamic resizing by default.
622 cfg.rc_resize_allowed = 0;
623
624 // Use 1 thread as default.
625 cfg.g_threads = 1;
626
627 // Enable error resilient mode.
628 cfg.g_error_resilient = 1;
629 cfg.g_lag_in_frames = 0;
630 cfg.kf_mode = VPX_KF_AUTO;
631
632 // Disable automatic keyframe placement.
633 cfg.kf_min_dist = cfg.kf_max_dist = 3000;
634
635 cfg.temporal_layering_mode = VP9E_TEMPORAL_LAYERING_MODE_BYPASS;
636
637 set_temporal_layer_pattern(layering_mode,
638 &cfg,
639 layer_flags,
640 &flag_periodicity);
641
642 set_rate_control_metrics(&rc, &cfg);
643
644 // Target bandwidth for the whole stream.
645 // Set to layer_target_bitrate for highest layer (total bitrate).
646 cfg.rc_target_bitrate = rc.layer_target_bitrate[cfg.ts_number_layers - 1];
647
648 // Open input file.
649 if (!(infile = fopen(argv[1], "rb"))) {
650 die("Failed to open %s for reading", argv[1]);
651 }
652
653 framerate = cfg.g_timebase.den / cfg.g_timebase.num;
654 // Open an output file for each stream.
655 for (i = 0; i < cfg.ts_number_layers; ++i) {
656 char file_name[PATH_MAX];
657 VpxVideoInfo info;
658 info.codec_fourcc = encoder->fourcc;
659 info.frame_width = cfg.g_w;
660 info.frame_height = cfg.g_h;
661 info.time_base.numerator = cfg.g_timebase.num;
662 info.time_base.denominator = cfg.g_timebase.den;
663
664 snprintf(file_name, sizeof(file_name), "%s_%d.ivf", argv[2], i);
665 outfile[i] = vpx_video_writer_open(file_name, kContainerIVF, &info);
666 if (!outfile[i])
667 die("Failed to open %s for writing", file_name);
668
669 assert(outfile[i] != NULL);
670 }
671 // No spatial layers in this encoder.
672 cfg.ss_number_layers = 1;
673
674 // Initialize codec.
675 #if CONFIG_VP9_HIGHBITDEPTH
676 if (vpx_codec_enc_init(
677 &codec, encoder->codec_interface(), &cfg,
678 bit_depth == VPX_BITS_8 ? 0 : VPX_CODEC_USE_HIGHBITDEPTH))
679 #else
680 if (vpx_codec_enc_init(&codec, encoder->codec_interface(), &cfg, 0))
681 #endif // CONFIG_VP9_HIGHBITDEPTH
682 die_codec(&codec, "Failed to initialize encoder");
683
684 if (strncmp(encoder->name, "vp8", 3) == 0) {
685 vpx_codec_control(&codec, VP8E_SET_CPUUSED, -speed);
686 vpx_codec_control(&codec, VP8E_SET_NOISE_SENSITIVITY, kDenoiserOff);
687 vpx_codec_control(&codec, VP8E_SET_STATIC_THRESHOLD, 1);
688 } else if (strncmp(encoder->name, "vp9", 3) == 0) {
689 vpx_svc_extra_cfg_t svc_params;
690 vpx_codec_control(&codec, VP8E_SET_CPUUSED, speed);
691 vpx_codec_control(&codec, VP9E_SET_AQ_MODE, 3);
692 vpx_codec_control(&codec, VP9E_SET_FRAME_PERIODIC_BOOST, 0);
693 vpx_codec_control(&codec, VP9E_SET_NOISE_SENSITIVITY, 0);
694 vpx_codec_control(&codec, VP8E_SET_STATIC_THRESHOLD, 1);
695 vpx_codec_control(&codec, VP9E_SET_TUNE_CONTENT, 0);
696 vpx_codec_control(&codec, VP9E_SET_TILE_COLUMNS, (cfg.g_threads >> 1));
697 if (vpx_codec_control(&codec, VP9E_SET_SVC, layering_mode > 0 ? 1: 0))
698 die_codec(&codec, "Failed to set SVC");
699 for (i = 0; i < cfg.ts_number_layers; ++i) {
700 svc_params.max_quantizers[i] = cfg.rc_max_quantizer;
701 svc_params.min_quantizers[i] = cfg.rc_min_quantizer;
702 }
703 svc_params.scaling_factor_num[0] = cfg.g_h;
704 svc_params.scaling_factor_den[0] = cfg.g_h;
705 vpx_codec_control(&codec, VP9E_SET_SVC_PARAMETERS, &svc_params);
706 }
707 if (strncmp(encoder->name, "vp8", 3) == 0) {
708 vpx_codec_control(&codec, VP8E_SET_SCREEN_CONTENT_MODE, 0);
709 }
710 vpx_codec_control(&codec, VP8E_SET_TOKEN_PARTITIONS, 1);
711 // This controls the maximum target size of the key frame.
712 // For generating smaller key frames, use a smaller max_intra_size_pct
713 // value, like 100 or 200.
714 {
715 const int max_intra_size_pct = 900;
716 vpx_codec_control(&codec, VP8E_SET_MAX_INTRA_BITRATE_PCT,
717 max_intra_size_pct);
718 }
719
720 frame_avail = 1;
721 while (frame_avail || got_data) {
722 struct vpx_usec_timer timer;
723 vpx_codec_iter_t iter = NULL;
724 const vpx_codec_cx_pkt_t *pkt;
725 #if VPX_ENCODER_ABI_VERSION > (4 + VPX_CODEC_ABI_VERSION)
726 // Update the temporal layer_id. No spatial layers in this test.
727 layer_id.spatial_layer_id = 0;
728 #endif
729 layer_id.temporal_layer_id =
730 cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity];
731 if (strncmp(encoder->name, "vp9", 3) == 0) {
732 vpx_codec_control(&codec, VP9E_SET_SVC_LAYER_ID, &layer_id);
733 } else if (strncmp(encoder->name, "vp8", 3) == 0) {
734 vpx_codec_control(&codec, VP8E_SET_TEMPORAL_LAYER_ID,
735 layer_id.temporal_layer_id);
736 }
737 flags = layer_flags[frame_cnt % flag_periodicity];
738 if (layering_mode == 0)
739 flags = 0;
740 frame_avail = vpx_img_read(&raw, infile);
741 if (frame_avail)
742 ++rc.layer_input_frames[layer_id.temporal_layer_id];
743 vpx_usec_timer_start(&timer);
744 if (vpx_codec_encode(&codec, frame_avail? &raw : NULL, pts, 1, flags,
745 VPX_DL_REALTIME)) {
746 die_codec(&codec, "Failed to encode frame");
747 }
748 vpx_usec_timer_mark(&timer);
749 cx_time += vpx_usec_timer_elapsed(&timer);
750 // Reset KF flag.
751 if (layering_mode != 7) {
752 layer_flags[0] &= ~VPX_EFLAG_FORCE_KF;
753 }
754 got_data = 0;
755 while ( (pkt = vpx_codec_get_cx_data(&codec, &iter)) ) {
756 got_data = 1;
757 switch (pkt->kind) {
758 case VPX_CODEC_CX_FRAME_PKT:
759 for (i = cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity];
760 i < cfg.ts_number_layers; ++i) {
761 vpx_video_writer_write_frame(outfile[i], pkt->data.frame.buf,
762 pkt->data.frame.sz, pts);
763 ++rc.layer_tot_enc_frames[i];
764 rc.layer_encoding_bitrate[i] += 8.0 * pkt->data.frame.sz;
765 // Keep count of rate control stats per layer (for non-key frames).
766 if (i == cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity] &&
767 !(pkt->data.frame.flags & VPX_FRAME_IS_KEY)) {
768 rc.layer_avg_frame_size[i] += 8.0 * pkt->data.frame.sz;
769 rc.layer_avg_rate_mismatch[i] +=
770 fabs(8.0 * pkt->data.frame.sz - rc.layer_pfb[i]) /
771 rc.layer_pfb[i];
772 ++rc.layer_enc_frames[i];
773 }
774 }
775 // Update for short-time encoding bitrate states, for moving window
776 // of size rc->window, shifted by rc->window / 2.
777 // Ignore first window segment, due to key frame.
778 if (frame_cnt > rc.window_size) {
779 sum_bitrate += 0.001 * 8.0 * pkt->data.frame.sz * framerate;
780 if (frame_cnt % rc.window_size == 0) {
781 rc.window_count += 1;
782 rc.avg_st_encoding_bitrate += sum_bitrate / rc.window_size;
783 rc.variance_st_encoding_bitrate +=
784 (sum_bitrate / rc.window_size) *
785 (sum_bitrate / rc.window_size);
786 sum_bitrate = 0.0;
787 }
788 }
789 // Second shifted window.
790 if (frame_cnt > rc.window_size + rc.window_size / 2) {
791 sum_bitrate2 += 0.001 * 8.0 * pkt->data.frame.sz * framerate;
792 if (frame_cnt > 2 * rc.window_size &&
793 frame_cnt % rc.window_size == 0) {
794 rc.window_count += 1;
795 rc.avg_st_encoding_bitrate += sum_bitrate2 / rc.window_size;
796 rc.variance_st_encoding_bitrate +=
797 (sum_bitrate2 / rc.window_size) *
798 (sum_bitrate2 / rc.window_size);
799 sum_bitrate2 = 0.0;
800 }
801 }
802 break;
803 default:
804 break;
805 }
806 }
807 ++frame_cnt;
808 pts += frame_duration;
809 }
810 fclose(infile);
811 printout_rate_control_summary(&rc, &cfg, frame_cnt);
812 printf("\n");
813 printf("Frame cnt and encoding time/FPS stats for encoding: %d %f %f \n",
814 frame_cnt,
815 1000 * (float)cx_time / (double)(frame_cnt * 1000000),
816 1000000 * (double)frame_cnt / (double)cx_time);
817
818 if (vpx_codec_destroy(&codec))
819 die_codec(&codec, "Failed to destroy codec");
820
821 // Try to rewrite the output file headers with the actual frame count.
822 for (i = 0; i < cfg.ts_number_layers; ++i)
823 vpx_video_writer_close(outfile[i]);
824
825 vpx_img_free(&raw);
826 return EXIT_SUCCESS;
827 }
vpx_codec_enc_cfg::rc_buf_initial_sz
unsigned int rc_buf_initial_sz
Decoder Buffer Initial Size.
Definition: vpx_encoder.h:610
vpx_svc_parameters::min_quantizers
int min_quantizers[12]
Definition: vpx_encoder.h:773
vpx_codec_enc_cfg::ts_number_layers
unsigned int ts_number_layers
Number of temporal coding layers.
Definition: vpx_encoder.h:715
VP8E_SET_CPUUSED
Codec control function to set encoder internal speed settings.
Definition: vp8cx.h:173
VPX_MAX_LAYERS
#define VPX_MAX_LAYERS
Definition: vpx_encoder.h:46
VP8_EFLAG_NO_REF_LAST
#define VP8_EFLAG_NO_REF_LAST
Don't reference the last frame.
Definition: vp8cx.h:67
VP8_EFLAG_NO_UPD_GF
#define VP8_EFLAG_NO_UPD_GF
Don't update the golden frame.
Definition: vp8cx.h:101
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:467
vpx_codec_enc_cfg::g_timebase
struct vpx_rational g_timebase
Stream timebase units.
Definition: vpx_encoder.h:397
VPX_CBR
Definition: vpx_encoder.h:276
VP9E_SET_NOISE_SENSITIVITY
Codec control function to set noise sensitivity.
Definition: vp8cx.h:432
vpx_codec_enc_cfg::layer_target_bitrate
unsigned int layer_target_bitrate[12]
Target bitrate for each spatial/temporal layer.
Definition: vpx_encoder.h:755
vpx_codec_enc_cfg::rc_buf_sz
unsigned int rc_buf_sz
Decoder Buffer Size.
Definition: vpx_encoder.h:600
VP8_EFLAG_NO_REF_GF
#define VP8_EFLAG_NO_REF_GF
Don't reference the golden frame.
Definition: vp8cx.h:76
vpx_codec_enc_cfg::g_input_bit_depth
unsigned int g_input_bit_depth
Bit-depth of the input frames.
Definition: vpx_encoder.h:383
vpx_codec_enc_cfg::kf_mode
enum vpx_kf_mode kf_mode
Keyframe placement mode.
Definition: vpx_encoder.h:665
vpx_rational::den
int den
Definition: vpx_encoder.h:261
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:552
vpx_codec_enc_cfg::rc_min_quantizer
unsigned int rc_min_quantizer
Minimum (Best Quality) Quantizer.
Definition: vpx_encoder.h:541
vpx_codec_enc_cfg::kf_max_dist
unsigned int kf_max_dist
Keyframe maximum interval.
Definition: vpx_encoder.h:685
vpx_codec_enc_cfg::g_lag_in_frames
unsigned int g_lag_in_frames
Allow lagged encoding.
Definition: vpx_encoder.h:429
vpx_codec_enc_cfg
Encoder configuration structure.
Definition: vpx_encoder.h:314
VPX_KF_AUTO
Definition: vpx_encoder.h:292
vpx_svc_layer_id::spatial_layer_id
int spatial_layer_id
Definition: vp8cx.h:679
VP8E_SET_MAX_INTRA_BITRATE_PCT
Codec control function to set Max data rate for Intra frames.
Definition: vp8cx.h:269
VPX_CODEC_USE_HIGHBITDEPTH
#define VPX_CODEC_USE_HIGHBITDEPTH
Definition: vpx_encoder.h:101
vpx_codec_cx_pkt
Encoder output packet.
Definition: vpx_encoder.h:195
vpx_codec_enc_cfg::rc_overshoot_pct
unsigned int rc_overshoot_pct
Rate control adaptation overshoot control.
Definition: vpx_encoder.h:583
VP9E_SET_SVC_PARAMETERS
Codec control function to set parameters for SVC.
Definition: vp8cx.h:449
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:729
vpx_codec_enc_cfg::rc_buf_optimal_sz
unsigned int rc_buf_optimal_sz
Decoder Buffer Optimal Size.
Definition: vpx_encoder.h:620
vpx_codec_enc_cfg::kf_min_dist
unsigned int kf_min_dist
Keyframe minimum interval.
Definition: vpx_encoder.h:675
vpx_codec_enc_cfg::g_profile
unsigned int g_profile
Bitstream profile to use.
Definition: vpx_encoder.h:346
VP9E_SET_TILE_COLUMNS
Codec control function to set number of tile columns.
Definition: vp8cx.h:362
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:747
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:56
vpx_svc_parameters::scaling_factor_num
int scaling_factor_num[12]
Definition: vpx_encoder.h:774
vpx_codec_enc_cfg::g_w
unsigned int g_w
Width of the frame.
Definition: vpx_encoder.h:357
vpx_codec_enc_cfg::ts_target_bitrate
unsigned int ts_target_bitrate[5]
Target bitrate for each temporal layer.
Definition: vpx_encoder.h:722
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:570
VP9E_SET_AQ_MODE
Codec control function to set adaptive quantization mode.
Definition: vp8cx.h:409
vpx_codec_enc_cfg::g_h
unsigned int g_h
Height of the frame.
Definition: vpx_encoder.h:367
vpx_codec_cx_pkt::kind
enum vpx_codec_cx_pkt_kind kind
Definition: vpx_encoder.h:196
vpx_codec_enc_cfg::rc_dropframe_thresh
unsigned int rc_dropframe_thresh
Temporal resampling configuration, if supported by the codec.
Definition: vpx_encoder.h:452
vpx_svc_layer_id
vp9 svc layer parameters
Definition: vp8cx.h:678
VP8E_SET_TEMPORAL_LAYER_ID
Codec control function to set the temporal layer id.
Definition: vp8cx.h:316
VP8_EFLAG_NO_UPD_LAST
#define VP8_EFLAG_NO_UPD_LAST
Don't update the last frame.
Definition: vp8cx.h:93
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:206
vpx_codec_enc_cfg::rc_target_bitrate
unsigned int rc_target_bitrate
Target data rate.
Definition: vpx_encoder.h:525
VPX_DL_REALTIME
#define VPX_DL_REALTIME
Definition: vpx_encoder.h:911
vpx_rational::num
int num
Definition: vpx_encoder.h:260
VP8E_SET_NOISE_SENSITIVITY
control function to set noise sensitivity
Definition: vp8cx.h:188
VPX_BITS_12
Definition: vpx_codec.h:222
vpx_codec_enc_cfg::g_threads
unsigned int g_threads
Maximum number of threads to use.
Definition: vpx_encoder.h:335
vpx_codec_enc_cfg::ss_number_layers
unsigned int ss_number_layers
Number of spatial coding layers.
Definition: vpx_encoder.h:695
vpx_codec_enc_cfg::g_bit_depth
vpx_bit_depth_t g_bit_depth
Bit-depth of the codec.
Definition: vpx_encoder.h:375
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:813
VP8E_SET_SCREEN_CONTENT_MODE
Codec control function to set encoder screen content mode.
Definition: vp8cx.h:324
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:462
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:586
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:763
vpx_svc_layer_id::temporal_layer_id
int temporal_layer_id
Definition: vp8cx.h:680
VP9E_SET_FRAME_PERIODIC_BOOST
Codec control function to enable/disable periodic Q boost.
Definition: vp8cx.h:424
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:441
vpx_codec_control
#define vpx_codec_control(ctx, id, data)
vpx_codec_control wrapper macro
Definition: vpx_codec.h:407
vpx_codec_enc_cfg::ts_periodicity
unsigned int ts_periodicity
Length of the sequence defining frame temporal layer membership.
Definition: vpx_encoder.h:738
VP8_EFLAG_NO_REF_ARF
#define VP8_EFLAG_NO_REF_ARF
Don't reference the alternate reference frame.
Definition: vp8cx.h:85
vpx_codec_destroy
vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx)
Destroy a codec instance.
VPX_BITS_8
Definition: vpx_codec.h:220
vpx_svc_parameters::scaling_factor_den
int scaling_factor_den[12]
Definition: vpx_encoder.h:775
VP8E_SET_STATIC_THRESHOLD
Codec control function to set the threshold for MBs treated static.
Definition: vp8cx.h:200
VPX_FRAME_IS_KEY
#define VPX_FRAME_IS_KEY
Definition: vpx_encoder.h:130
VPX_BITS_10
Definition: vpx_codec.h:221
VPX_EFLAG_FORCE_KF
#define VPX_EFLAG_FORCE_KF
Definition: vpx_encoder.h:305
vpx_codec_iter_t
const void * vpx_codec_iter_t
Iterator.
Definition: vpx_codec.h:188
VPX_CODEC_CX_FRAME_PKT
Definition: vpx_encoder.h:176
vpx_svc_parameters::max_quantizers
int max_quantizers[12]
Definition: vpx_encoder.h:772
vpx_svc_parameters
vp9 svc extra configure parameters
Definition: vpx_encoder.h:771
vpx_codec_enc_cfg::g_error_resilient
vpx_codec_er_flags_t g_error_resilient
Enable error resilient modes.
Definition: vpx_encoder.h:406
VP8_EFLAG_NO_UPD_ARF
#define VP8_EFLAG_NO_UPD_ARF
Don't update the alternate reference frame.
Definition: vp8cx.h:109
VP8_EFLAG_NO_UPD_ENTROPY
#define VP8_EFLAG_NO_UPD_ENTROPY
Disable entropy update.
Definition: vp8cx.h:133
VP9E_SET_SVC_LAYER_ID
Codec control function to set svc layer for spatial and temporal.
Definition: vp8cx.h:458
vpx_codec_enc_cfg::rc_end_usage
enum vpx_rc_mode rc_end_usage
Rate control algorithm to use.
Definition: vpx_encoder.h:504
vpx_codec_ctx
Codec context structure.
Definition: vpx_codec.h:199