flashsvenc: switch to encode2().
[libav.git] / libavcodec / libvpxenc.c
CommitLineData
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1/*
2 * Copyright (c) 2010, Google, Inc.
3 *
2912e87a 4 * This file is part of Libav.
ee0e9146 5 *
2912e87a 6 * Libav is free software; you can redistribute it and/or
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7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
2912e87a 11 * Libav is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
2912e87a 17 * License along with Libav; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21/**
22 * @file
23 * VP8 encoder support via libvpx
24 */
25
26#define VPX_DISABLE_CTRL_TYPECHECKS 1
27#define VPX_CODEC_DISABLE_COMPAT 1
28#include <vpx/vpx_encoder.h>
29#include <vpx/vp8cx.h>
30
31#include "avcodec.h"
e3eb015b 32#include "internal.h"
ee0e9146 33#include "libavutil/base64.h"
954a6532 34#include "libavutil/mathematics.h"
e3eb015b 35#include "libavutil/opt.h"
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36
37/**
38 * Portion of struct vpx_codec_cx_pkt from vpx_encoder.h.
39 * One encoded frame returned from the library.
40 */
41struct FrameListData {
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42 void *buf; /**< compressed data buffer */
43 size_t sz; /**< length of compressed data */
44 int64_t pts; /**< time stamp to show frame
ee0e9146 45 (in timebase units) */
1aa15491 46 unsigned long duration; /**< duration to show frame
ee0e9146 47 (in timebase units) */
1aa15491 48 uint32_t flags; /**< flags for this frame */
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49 struct FrameListData *next;
50};
51
52typedef struct VP8EncoderContext {
e3eb015b 53 AVClass *class;
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54 struct vpx_codec_ctx encoder;
55 struct vpx_image rawimg;
56 struct vpx_fixed_buf twopass_stats;
57 unsigned long deadline; //i.e., RT/GOOD/BEST
58 struct FrameListData *coded_frame_list;
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59 int cpu_used;
60 int auto_alt_ref;
61 int arnr_max_frames;
62 int arnr_strength;
63 int arnr_type;
64 int lag_in_frames;
65 int error_resilient;
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66} VP8Context;
67
68/** String mappings for enum vp8e_enc_control_id */
b0f29db5 69static const char *const ctlidstr[] = {
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70 [VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY",
71 [VP8E_UPD_REFERENCE] = "VP8E_UPD_REFERENCE",
72 [VP8E_USE_REFERENCE] = "VP8E_USE_REFERENCE",
73 [VP8E_SET_ROI_MAP] = "VP8E_SET_ROI_MAP",
74 [VP8E_SET_ACTIVEMAP] = "VP8E_SET_ACTIVEMAP",
75 [VP8E_SET_SCALEMODE] = "VP8E_SET_SCALEMODE",
76 [VP8E_SET_CPUUSED] = "VP8E_SET_CPUUSED",
77 [VP8E_SET_ENABLEAUTOALTREF] = "VP8E_SET_ENABLEAUTOALTREF",
78 [VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY",
79 [VP8E_SET_SHARPNESS] = "VP8E_SET_SHARPNESS",
80 [VP8E_SET_STATIC_THRESHOLD] = "VP8E_SET_STATIC_THRESHOLD",
81 [VP8E_SET_TOKEN_PARTITIONS] = "VP8E_SET_TOKEN_PARTITIONS",
82 [VP8E_GET_LAST_QUANTIZER] = "VP8E_GET_LAST_QUANTIZER",
83 [VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES",
84 [VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH",
85 [VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE",
86};
87
88static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
89{
90 VP8Context *ctx = avctx->priv_data;
91 const char *error = vpx_codec_error(&ctx->encoder);
92 const char *detail = vpx_codec_error_detail(&ctx->encoder);
93
94 av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error);
95 if (detail)
96 av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail);
97}
98
99static av_cold void dump_enc_cfg(AVCodecContext *avctx,
100 const struct vpx_codec_enc_cfg *cfg)
101{
102 int width = -30;
103 int level = AV_LOG_DEBUG;
104
105 av_log(avctx, level, "vpx_codec_enc_cfg\n");
106 av_log(avctx, level, "generic settings\n"
107 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
108 " %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n",
109 width, "g_usage:", cfg->g_usage,
110 width, "g_threads:", cfg->g_threads,
111 width, "g_profile:", cfg->g_profile,
112 width, "g_w:", cfg->g_w,
113 width, "g_h:", cfg->g_h,
114 width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den,
115 width, "g_error_resilient:", cfg->g_error_resilient,
116 width, "g_pass:", cfg->g_pass,
117 width, "g_lag_in_frames:", cfg->g_lag_in_frames);
118 av_log(avctx, level, "rate control settings\n"
119 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
120 " %*s%d\n %*s%p(%zu)\n %*s%u\n",
121 width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh,
122 width, "rc_resize_allowed:", cfg->rc_resize_allowed,
123 width, "rc_resize_up_thresh:", cfg->rc_resize_up_thresh,
124 width, "rc_resize_down_thresh:", cfg->rc_resize_down_thresh,
125 width, "rc_end_usage:", cfg->rc_end_usage,
126 width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz,
127 width, "rc_target_bitrate:", cfg->rc_target_bitrate);
128 av_log(avctx, level, "quantizer settings\n"
129 " %*s%u\n %*s%u\n",
130 width, "rc_min_quantizer:", cfg->rc_min_quantizer,
131 width, "rc_max_quantizer:", cfg->rc_max_quantizer);
132 av_log(avctx, level, "bitrate tolerance\n"
133 " %*s%u\n %*s%u\n",
134 width, "rc_undershoot_pct:", cfg->rc_undershoot_pct,
135 width, "rc_overshoot_pct:", cfg->rc_overshoot_pct);
136 av_log(avctx, level, "decoder buffer model\n"
137 " %*s%u\n %*s%u\n %*s%u\n",
138 width, "rc_buf_sz:", cfg->rc_buf_sz,
139 width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz,
140 width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz);
141 av_log(avctx, level, "2 pass rate control settings\n"
142 " %*s%u\n %*s%u\n %*s%u\n",
143 width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct,
144 width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct,
145 width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct);
146 av_log(avctx, level, "keyframing settings\n"
147 " %*s%d\n %*s%u\n %*s%u\n",
148 width, "kf_mode:", cfg->kf_mode,
149 width, "kf_min_dist:", cfg->kf_min_dist,
150 width, "kf_max_dist:", cfg->kf_max_dist);
151 av_log(avctx, level, "\n");
152}
153
154static void coded_frame_add(void *list, struct FrameListData *cx_frame)
155{
156 struct FrameListData **p = list;
157
158 while (*p != NULL)
159 p = &(*p)->next;
160 *p = cx_frame;
161 cx_frame->next = NULL;
162}
163
164static av_cold void free_coded_frame(struct FrameListData *cx_frame)
165{
166 av_freep(&cx_frame->buf);
167 av_freep(&cx_frame);
168}
169
170static av_cold void free_frame_list(struct FrameListData *list)
171{
172 struct FrameListData *p = list;
173
174 while (p) {
175 list = list->next;
176 free_coded_frame(p);
177 p = list;
178 }
179}
180
181static av_cold int codecctl_int(AVCodecContext *avctx,
182 enum vp8e_enc_control_id id, int val)
183{
184 VP8Context *ctx = avctx->priv_data;
185 char buf[80];
186 int width = -30;
187 int res;
188
189 snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]);
190 av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val);
191
192 res = vpx_codec_control(&ctx->encoder, id, val);
193 if (res != VPX_CODEC_OK) {
194 snprintf(buf, sizeof(buf), "Failed to set %s codec control",
195 ctlidstr[id]);
196 log_encoder_error(avctx, buf);
197 }
198
199 return res == VPX_CODEC_OK ? 0 : AVERROR(EINVAL);
200}
201
202static av_cold int vp8_free(AVCodecContext *avctx)
203{
204 VP8Context *ctx = avctx->priv_data;
205
206 vpx_codec_destroy(&ctx->encoder);
207 av_freep(&ctx->twopass_stats.buf);
208 av_freep(&avctx->coded_frame);
209 av_freep(&avctx->stats_out);
210 free_frame_list(ctx->coded_frame_list);
211 return 0;
212}
213
214static av_cold int vp8_init(AVCodecContext *avctx)
215{
216 VP8Context *ctx = avctx->priv_data;
217 const struct vpx_codec_iface *iface = &vpx_codec_vp8_cx_algo;
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218 struct vpx_codec_enc_cfg enccfg;
219 int res;
220
221 av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
222 av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
223
224 if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) {
225 av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n",
226 vpx_codec_err_to_string(res));
227 return AVERROR(EINVAL);
228 }
229 dump_enc_cfg(avctx, &enccfg);
230
231 enccfg.g_w = avctx->width;
232 enccfg.g_h = avctx->height;
233 enccfg.g_timebase.num = avctx->time_base.num;
234 enccfg.g_timebase.den = avctx->time_base.den;
235 enccfg.g_threads = avctx->thread_count;
236
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237 if (ctx->lag_in_frames >= 0)
238 enccfg.g_lag_in_frames = ctx->lag_in_frames;
239
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240 if (avctx->flags & CODEC_FLAG_PASS1)
241 enccfg.g_pass = VPX_RC_FIRST_PASS;
242 else if (avctx->flags & CODEC_FLAG_PASS2)
243 enccfg.g_pass = VPX_RC_LAST_PASS;
244 else
245 enccfg.g_pass = VPX_RC_ONE_PASS;
246
247 if (avctx->rc_min_rate == avctx->rc_max_rate &&
248 avctx->rc_min_rate == avctx->bit_rate)
249 enccfg.rc_end_usage = VPX_CBR;
250 enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
251 AV_ROUND_NEAR_INF);
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252 if (avctx->qmin > 0)
253 enccfg.rc_min_quantizer = avctx->qmin;
254 if (avctx->qmax > 0)
255 enccfg.rc_max_quantizer = avctx->qmax;
00ce2cbe 256 enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
ee0e9146 257
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258 //0-100 (0 => CBR, 100 => VBR)
259 enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
260 enccfg.rc_2pass_vbr_minsection_pct =
9d845ca4 261 avctx->rc_min_rate * 100LL / avctx->bit_rate;
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262 if (avctx->rc_max_rate)
263 enccfg.rc_2pass_vbr_maxsection_pct =
9d845ca4 264 avctx->rc_max_rate * 100LL / avctx->bit_rate;
7eb185e0 265
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266 if (avctx->rc_buffer_size)
267 enccfg.rc_buf_sz =
9d845ca4 268 avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
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269 if (avctx->rc_initial_buffer_occupancy)
270 enccfg.rc_buf_initial_sz =
9d845ca4 271 avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
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272 enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
273
07777c2d 274 //_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
6450f26c 275 if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
ee0e9146 276 enccfg.kf_min_dist = avctx->keyint_min;
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277 if (avctx->gop_size >= 0)
278 enccfg.kf_max_dist = avctx->gop_size;
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279
280 if (enccfg.g_pass == VPX_RC_FIRST_PASS)
281 enccfg.g_lag_in_frames = 0;
282 else if (enccfg.g_pass == VPX_RC_LAST_PASS) {
283 int decode_size;
284
285 if (!avctx->stats_in) {
286 av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n");
287 return AVERROR_INVALIDDATA;
288 }
289
290 ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;
291 ctx->twopass_stats.buf = av_malloc(ctx->twopass_stats.sz);
292 if (!ctx->twopass_stats.buf) {
293 av_log(avctx, AV_LOG_ERROR,
294 "Stat buffer alloc (%zu bytes) failed\n",
295 ctx->twopass_stats.sz);
296 return AVERROR(ENOMEM);
297 }
298 decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,
299 ctx->twopass_stats.sz);
300 if (decode_size < 0) {
301 av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n");
302 return AVERROR_INVALIDDATA;
303 }
304
305 ctx->twopass_stats.sz = decode_size;
306 enccfg.rc_twopass_stats_in = ctx->twopass_stats;
307 }
308
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309 /* 0-3: For non-zero values the encoder increasingly optimizes for reduced
310 complexity playback on low powered devices at the expense of encode
311 quality. */
312 if (avctx->profile != FF_PROFILE_UNKNOWN)
313 enccfg.g_profile = avctx->profile;
ee0e9146 314
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315 enccfg.g_error_resilient = ctx->error_resilient;
316
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317 dump_enc_cfg(avctx, &enccfg);
318 /* Construct Encoder Context */
319 res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, 0);
320 if (res != VPX_CODEC_OK) {
321 log_encoder_error(avctx, "Failed to initialize encoder");
322 return AVERROR(EINVAL);
323 }
324
325 //codec control failures are currently treated only as warnings
326 av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
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327 if (ctx->cpu_used != INT_MIN)
328 codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used);
329 if (ctx->auto_alt_ref >= 0)
330 codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
331 if (ctx->arnr_max_frames >= 0)
332 codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);
333 if (ctx->arnr_strength >= 0)
334 codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);
335 if (ctx->arnr_type >= 0)
336 codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);
ee0e9146 337 codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
2aa72ecc 338 codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));
88aa2159 339 codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, avctx->mb_threshold);
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340
341 //provide dummy value to initialize wrapper, values will be updated each _encode()
342 vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
343 (unsigned char*)1);
344
345 avctx->coded_frame = avcodec_alloc_frame();
346 if (!avctx->coded_frame) {
347 av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
348 vp8_free(avctx);
349 return AVERROR(ENOMEM);
350 }
351 return 0;
352}
353
354static inline void cx_pktcpy(struct FrameListData *dst,
355 const struct vpx_codec_cx_pkt *src)
356{
357 dst->pts = src->data.frame.pts;
358 dst->duration = src->data.frame.duration;
359 dst->flags = src->data.frame.flags;
360 dst->sz = src->data.frame.sz;
361 dst->buf = src->data.frame.buf;
362}
363
364/**
365 * Store coded frame information in format suitable for return from encode().
366 *
367 * Write buffer information from @a cx_frame to @a buf & @a buf_size.
368 * Timing/frame details to @a coded_frame.
369 * @return Frame size written to @a buf on success
370 * @return AVERROR(EINVAL) on error
371 */
372static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
373 uint8_t *buf, int buf_size, AVFrame *coded_frame)
374{
375 if ((int) cx_frame->sz <= buf_size) {
376 buf_size = cx_frame->sz;
377 memcpy(buf, cx_frame->buf, buf_size);
378 coded_frame->pts = cx_frame->pts;
379 coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY);
380
381 if (coded_frame->key_frame)
975a1447 382 coded_frame->pict_type = AV_PICTURE_TYPE_I;
ee0e9146 383 else
975a1447 384 coded_frame->pict_type = AV_PICTURE_TYPE_P;
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385 } else {
386 av_log(avctx, AV_LOG_ERROR,
387 "Compressed frame larger than storage provided! (%zu/%d)\n",
388 cx_frame->sz, buf_size);
389 return AVERROR(EINVAL);
390 }
391 return buf_size;
392}
393
394/**
395 * Queue multiple output frames from the encoder, returning the front-most.
396 * In cases where vpx_codec_get_cx_data() returns more than 1 frame append
397 * the frame queue. Return the head frame if available.
398 * @return Stored frame size
399 * @return AVERROR(EINVAL) on output size error
400 * @return AVERROR(ENOMEM) on coded frame queue data allocation error
401 */
402static int queue_frames(AVCodecContext *avctx, uint8_t *buf, int buf_size,
403 AVFrame *coded_frame)
404{
405 VP8Context *ctx = avctx->priv_data;
406 const struct vpx_codec_cx_pkt *pkt;
407 const void *iter = NULL;
408 int size = 0;
409
410 if (ctx->coded_frame_list) {
411 struct FrameListData *cx_frame = ctx->coded_frame_list;
412 /* return the leading frame if we've already begun queueing */
413 size = storeframe(avctx, cx_frame, buf, buf_size, coded_frame);
414 if (size < 0)
415 return AVERROR(EINVAL);
416 ctx->coded_frame_list = cx_frame->next;
417 free_coded_frame(cx_frame);
418 }
419
420 /* consume all available output from the encoder before returning. buffers
421 are only good through the next vpx_codec call */
422 while ((pkt = vpx_codec_get_cx_data(&ctx->encoder, &iter))) {
423 switch (pkt->kind) {
424 case VPX_CODEC_CX_FRAME_PKT:
425 if (!size) {
426 struct FrameListData cx_frame;
427
428 /* avoid storing the frame when the list is empty and we haven't yet
429 provided a frame for output */
430 assert(!ctx->coded_frame_list);
431 cx_pktcpy(&cx_frame, pkt);
432 size = storeframe(avctx, &cx_frame, buf, buf_size, coded_frame);
433 if (size < 0)
434 return AVERROR(EINVAL);
435 } else {
436 struct FrameListData *cx_frame =
437 av_malloc(sizeof(struct FrameListData));
438
439 if (!cx_frame) {
440 av_log(avctx, AV_LOG_ERROR,
441 "Frame queue element alloc failed\n");
442 return AVERROR(ENOMEM);
443 }
444 cx_pktcpy(cx_frame, pkt);
445 cx_frame->buf = av_malloc(cx_frame->sz);
446
447 if (!cx_frame->buf) {
448 av_log(avctx, AV_LOG_ERROR,
449 "Data buffer alloc (%zu bytes) failed\n",
450 cx_frame->sz);
451 return AVERROR(ENOMEM);
452 }
453 memcpy(cx_frame->buf, pkt->data.frame.buf, pkt->data.frame.sz);
454 coded_frame_add(&ctx->coded_frame_list, cx_frame);
455 }
456 break;
457 case VPX_CODEC_STATS_PKT: {
458 struct vpx_fixed_buf *stats = &ctx->twopass_stats;
459 stats->buf = av_realloc(stats->buf,
460 stats->sz + pkt->data.twopass_stats.sz);
461 if (!stats->buf) {
462 av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n");
463 return AVERROR(ENOMEM);
464 }
465 memcpy((uint8_t*)stats->buf + stats->sz,
466 pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz);
467 stats->sz += pkt->data.twopass_stats.sz;
468 break;
469 }
470 case VPX_CODEC_PSNR_PKT: //FIXME add support for CODEC_FLAG_PSNR
471 case VPX_CODEC_CUSTOM_PKT:
472 //ignore unsupported/unrecognized packet types
473 break;
474 }
475 }
476
477 return size;
478}
479
480static int vp8_encode(AVCodecContext *avctx, uint8_t *buf, int buf_size,
481 void *data)
482{
483 VP8Context *ctx = avctx->priv_data;
484 AVFrame *frame = data;
485 struct vpx_image *rawimg = NULL;
486 int64_t timestamp = 0;
487 int res, coded_size;
488
489 if (frame) {
490 rawimg = &ctx->rawimg;
491 rawimg->planes[VPX_PLANE_Y] = frame->data[0];
492 rawimg->planes[VPX_PLANE_U] = frame->data[1];
493 rawimg->planes[VPX_PLANE_V] = frame->data[2];
494 rawimg->stride[VPX_PLANE_Y] = frame->linesize[0];
495 rawimg->stride[VPX_PLANE_U] = frame->linesize[1];
496 rawimg->stride[VPX_PLANE_V] = frame->linesize[2];
497 timestamp = frame->pts;
498 }
499
500 res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
501 avctx->ticks_per_frame, 0, ctx->deadline);
502 if (res != VPX_CODEC_OK) {
503 log_encoder_error(avctx, "Error encoding frame");
504 return AVERROR_INVALIDDATA;
505 }
506 coded_size = queue_frames(avctx, buf, buf_size, avctx->coded_frame);
507
508 if (!frame && avctx->flags & CODEC_FLAG_PASS1) {
082a0a33 509 unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
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510
511 avctx->stats_out = av_malloc(b64_size);
512 if (!avctx->stats_out) {
513 av_log(avctx, AV_LOG_ERROR, "Stat buffer alloc (%d bytes) failed\n",
514 b64_size);
515 return AVERROR(ENOMEM);
516 }
517 av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
518 ctx->twopass_stats.sz);
519 }
520 return coded_size;
521}
522
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523#define OFFSET(x) offsetof(VP8Context, x)
524#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
525static const AVOption options[] = {
145f741e 526 { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {INT_MIN}, INT_MIN, INT_MAX, VE},
e3eb015b 527 { "auto-alt-ref", "Enable use of alternate reference "
145f741e 528 "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {-1}, -1, 1, VE},
e3eb015b 529 { "lag-in-frames", "Number of frames to look ahead for "
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530 "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
531 { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
532 { "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
533 { "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE, "arnr_type"},
534 { "backward", NULL, 0, AV_OPT_TYPE_CONST, {1}, 0, 0, VE, "arnr_type" },
535 { "forward", NULL, 0, AV_OPT_TYPE_CONST, {2}, 0, 0, VE, "arnr_type" },
536 { "centered", NULL, 0, AV_OPT_TYPE_CONST, {3}, 0, 0, VE, "arnr_type" },
537 { "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
538 { "best", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"},
539 { "good", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"},
540 { "realtime", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_REALTIME}, 0, 0, VE, "quality"},
541 { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {0}, INT_MIN, INT_MAX, VE, "er"},
24ec9ac4 542#ifdef VPX_ERROR_RESILIENT_DEFAULT
145f741e 543 { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
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544 { "partitions", "The frame partitions are independently decodable "
545 "by the bool decoder, meaning that partitions can be decoded even "
546 "though earlier partitions have been lost. Note that intra predicition"
145f741e 547 " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"},
24ec9ac4 548#endif
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549 { NULL }
550};
551
552static const AVClass class = {
553 .class_name = "libvpx encoder",
554 .item_name = av_default_item_name,
555 .option = options,
556 .version = LIBAVUTIL_VERSION_INT,
557};
558
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559static const AVCodecDefault defaults[] = {
560 { "qmin", "-1" },
561 { "qmax", "-1" },
562 { "g", "-1" },
563 { "keyint_min", "-1" },
564 { NULL },
565};
566
d36beb3f 567AVCodec ff_libvpx_encoder = {
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568 .name = "libvpx",
569 .type = AVMEDIA_TYPE_VIDEO,
570 .id = CODEC_ID_VP8,
571 .priv_data_size = sizeof(VP8Context),
572 .init = vp8_init,
573 .encode = vp8_encode,
574 .close = vp8_free,
f6a152db 575 .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
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576 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
577 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
e3eb015b 578 .priv_class = &class,
6450f26c 579 .defaults = defaults,
ee0e9146 580};