2 * Copyright (c) 2010, Google, Inc.
4 * This file is part of Libav.
6 * Libav is free software; you can redistribute it and/or
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.
11 * Libav is distributed in the hope that it will be useful,
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.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * VP8 encoder support via libvpx
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>
34 #include "libavutil/base64.h"
35 #include "libavutil/common.h"
36 #include "libavutil/mathematics.h"
37 #include "libavutil/opt.h"
40 * Portion of struct vpx_codec_cx_pkt from vpx_encoder.h.
41 * One encoded frame returned from the library.
43 struct FrameListData {
44 void *buf; /**< compressed data buffer */
45 size_t sz; /**< length of compressed data */
46 int64_t pts; /**< time stamp to show frame
47 (in timebase units) */
48 unsigned long duration; /**< duration to show frame
49 (in timebase units) */
50 uint32_t flags; /**< flags for this frame */
51 struct FrameListData *next;
54 typedef struct VP8EncoderContext {
56 struct vpx_codec_ctx encoder;
57 struct vpx_image rawimg;
58 struct vpx_fixed_buf twopass_stats;
59 unsigned long deadline; //i.e., RT/GOOD/BEST
60 struct FrameListData *coded_frame_list;
71 int noise_sensitivity;
74 /** String mappings for enum vp8e_enc_control_id */
75 static const char *const ctlidstr[] = {
76 [VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES",
77 [VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH",
78 [VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE",
79 [VP8E_SET_CPUUSED] = "VP8E_SET_CPUUSED",
80 [VP8E_SET_CQ_LEVEL] = "VP8E_SET_CQ_LEVEL",
81 [VP8E_SET_ENABLEAUTOALTREF] = "VP8E_SET_ENABLEAUTOALTREF",
82 [VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY",
83 [VP8E_SET_STATIC_THRESHOLD] = "VP8E_SET_STATIC_THRESHOLD",
84 [VP8E_SET_TOKEN_PARTITIONS] = "VP8E_SET_TOKEN_PARTITIONS",
87 static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
89 VP8Context *ctx = avctx->priv_data;
90 const char *error = vpx_codec_error(&ctx->encoder);
91 const char *detail = vpx_codec_error_detail(&ctx->encoder);
93 av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error);
95 av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail);
98 static av_cold void dump_enc_cfg(AVCodecContext *avctx,
99 const struct vpx_codec_enc_cfg *cfg)
102 int level = AV_LOG_DEBUG;
104 av_log(avctx, level, "vpx_codec_enc_cfg\n");
105 av_log(avctx, level, "generic settings\n"
106 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
107 " %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n",
108 width, "g_usage:", cfg->g_usage,
109 width, "g_threads:", cfg->g_threads,
110 width, "g_profile:", cfg->g_profile,
111 width, "g_w:", cfg->g_w,
112 width, "g_h:", cfg->g_h,
113 width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den,
114 width, "g_error_resilient:", cfg->g_error_resilient,
115 width, "g_pass:", cfg->g_pass,
116 width, "g_lag_in_frames:", cfg->g_lag_in_frames);
117 av_log(avctx, level, "rate control settings\n"
118 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
119 " %*s%d\n %*s%p(%zu)\n %*s%u\n",
120 width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh,
121 width, "rc_resize_allowed:", cfg->rc_resize_allowed,
122 width, "rc_resize_up_thresh:", cfg->rc_resize_up_thresh,
123 width, "rc_resize_down_thresh:", cfg->rc_resize_down_thresh,
124 width, "rc_end_usage:", cfg->rc_end_usage,
125 width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz,
126 width, "rc_target_bitrate:", cfg->rc_target_bitrate);
127 av_log(avctx, level, "quantizer settings\n"
129 width, "rc_min_quantizer:", cfg->rc_min_quantizer,
130 width, "rc_max_quantizer:", cfg->rc_max_quantizer);
131 av_log(avctx, level, "bitrate tolerance\n"
133 width, "rc_undershoot_pct:", cfg->rc_undershoot_pct,
134 width, "rc_overshoot_pct:", cfg->rc_overshoot_pct);
135 av_log(avctx, level, "decoder buffer model\n"
136 " %*s%u\n %*s%u\n %*s%u\n",
137 width, "rc_buf_sz:", cfg->rc_buf_sz,
138 width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz,
139 width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz);
140 av_log(avctx, level, "2 pass rate control settings\n"
141 " %*s%u\n %*s%u\n %*s%u\n",
142 width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct,
143 width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct,
144 width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct);
145 av_log(avctx, level, "keyframing settings\n"
146 " %*s%d\n %*s%u\n %*s%u\n",
147 width, "kf_mode:", cfg->kf_mode,
148 width, "kf_min_dist:", cfg->kf_min_dist,
149 width, "kf_max_dist:", cfg->kf_max_dist);
150 av_log(avctx, level, "\n");
153 static void coded_frame_add(void *list, struct FrameListData *cx_frame)
155 struct FrameListData **p = list;
160 cx_frame->next = NULL;
163 static av_cold void free_coded_frame(struct FrameListData *cx_frame)
165 av_freep(&cx_frame->buf);
169 static av_cold void free_frame_list(struct FrameListData *list)
171 struct FrameListData *p = list;
180 static av_cold int codecctl_int(AVCodecContext *avctx,
181 enum vp8e_enc_control_id id, int val)
183 VP8Context *ctx = avctx->priv_data;
188 snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]);
189 av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val);
191 res = vpx_codec_control(&ctx->encoder, id, val);
192 if (res != VPX_CODEC_OK) {
193 snprintf(buf, sizeof(buf), "Failed to set %s codec control",
195 log_encoder_error(avctx, buf);
198 return res == VPX_CODEC_OK ? 0 : AVERROR(EINVAL);
201 static av_cold int vp8_free(AVCodecContext *avctx)
203 VP8Context *ctx = avctx->priv_data;
205 vpx_codec_destroy(&ctx->encoder);
206 av_freep(&ctx->twopass_stats.buf);
207 av_freep(&avctx->stats_out);
208 free_frame_list(ctx->coded_frame_list);
212 static av_cold int vpx_init(AVCodecContext *avctx,
213 const struct vpx_codec_iface *iface)
215 VP8Context *ctx = avctx->priv_data;
216 struct vpx_codec_enc_cfg enccfg = { 0 };
217 AVCPBProperties *cpb_props;
220 av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
221 av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
223 if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) {
224 av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n",
225 vpx_codec_err_to_string(res));
226 return AVERROR(EINVAL);
228 dump_enc_cfg(avctx, &enccfg);
230 enccfg.g_w = avctx->width;
231 enccfg.g_h = avctx->height;
232 enccfg.g_timebase.num = avctx->time_base.num;
233 enccfg.g_timebase.den = avctx->time_base.den;
234 enccfg.g_threads = avctx->thread_count;
236 if (ctx->lag_in_frames >= 0)
237 enccfg.g_lag_in_frames = ctx->lag_in_frames;
239 if (avctx->flags & AV_CODEC_FLAG_PASS1)
240 enccfg.g_pass = VPX_RC_FIRST_PASS;
241 else if (avctx->flags & AV_CODEC_FLAG_PASS2)
242 enccfg.g_pass = VPX_RC_LAST_PASS;
244 enccfg.g_pass = VPX_RC_ONE_PASS;
246 if (!avctx->bit_rate)
247 avctx->bit_rate = enccfg.rc_target_bitrate * 1000;
249 enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
253 enccfg.rc_end_usage = VPX_CQ;
254 else if (avctx->rc_min_rate == avctx->rc_max_rate &&
255 avctx->rc_min_rate == avctx->bit_rate)
256 enccfg.rc_end_usage = VPX_CBR;
259 enccfg.rc_min_quantizer = avctx->qmin;
261 enccfg.rc_max_quantizer = avctx->qmax;
263 #if FF_API_PRIVATE_OPT
264 FF_DISABLE_DEPRECATION_WARNINGS
265 if (avctx->frame_skip_threshold)
266 ctx->drop_threshold = avctx->frame_skip_threshold;
267 FF_ENABLE_DEPRECATION_WARNINGS
269 enccfg.rc_dropframe_thresh = ctx->drop_threshold;
271 //0-100 (0 => CBR, 100 => VBR)
272 enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
273 enccfg.rc_2pass_vbr_minsection_pct =
274 avctx->rc_min_rate * 100LL / avctx->bit_rate;
275 if (avctx->rc_max_rate)
276 enccfg.rc_2pass_vbr_maxsection_pct =
277 avctx->rc_max_rate * 100LL / avctx->bit_rate;
279 if (avctx->rc_buffer_size)
281 avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
282 if (avctx->rc_initial_buffer_occupancy)
283 enccfg.rc_buf_initial_sz =
284 avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
285 enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
287 //_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
288 if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
289 enccfg.kf_min_dist = avctx->keyint_min;
290 if (avctx->gop_size >= 0)
291 enccfg.kf_max_dist = avctx->gop_size;
293 if (enccfg.g_pass == VPX_RC_FIRST_PASS)
294 enccfg.g_lag_in_frames = 0;
295 else if (enccfg.g_pass == VPX_RC_LAST_PASS) {
296 int decode_size, ret;
298 if (!avctx->stats_in) {
299 av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n");
300 return AVERROR_INVALIDDATA;
303 ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;
304 ret = av_reallocp(&ctx->twopass_stats.buf, ctx->twopass_stats.sz);
306 av_log(avctx, AV_LOG_ERROR,
307 "Stat buffer alloc (%zu bytes) failed\n",
308 ctx->twopass_stats.sz);
311 decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,
312 ctx->twopass_stats.sz);
313 if (decode_size < 0) {
314 av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n");
315 return AVERROR_INVALIDDATA;
318 ctx->twopass_stats.sz = decode_size;
319 enccfg.rc_twopass_stats_in = ctx->twopass_stats;
322 /* 0-3: For non-zero values the encoder increasingly optimizes for reduced
323 complexity playback on low powered devices at the expense of encode
325 if (avctx->profile != FF_PROFILE_UNKNOWN)
326 enccfg.g_profile = avctx->profile;
327 else if (avctx->pix_fmt == AV_PIX_FMT_YUV420P)
328 avctx->profile = enccfg.g_profile = FF_PROFILE_VP9_0;
330 avctx->profile = enccfg.g_profile = FF_PROFILE_VP9_1;
332 enccfg.g_error_resilient = ctx->error_resilient;
334 dump_enc_cfg(avctx, &enccfg);
335 /* Construct Encoder Context */
336 res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, 0);
337 if (res != VPX_CODEC_OK) {
338 log_encoder_error(avctx, "Failed to initialize encoder");
339 return AVERROR(EINVAL);
342 //codec control failures are currently treated only as warnings
343 av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
344 if (ctx->cpu_used != INT_MIN)
345 codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used);
346 if (ctx->auto_alt_ref >= 0)
347 codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
348 if (ctx->arnr_max_frames >= 0)
349 codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);
350 if (ctx->arnr_strength >= 0)
351 codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);
352 if (ctx->arnr_type >= 0)
353 codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);
355 if (CONFIG_LIBVPX_VP8_ENCODER && iface == &vpx_codec_vp8_cx_algo) {
356 #if FF_API_PRIVATE_OPT
357 FF_DISABLE_DEPRECATION_WARNINGS
358 if (avctx->noise_reduction)
359 ctx->noise_sensitivity = avctx->noise_reduction;
360 FF_ENABLE_DEPRECATION_WARNINGS
362 codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, ctx->noise_sensitivity);
363 codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));
366 FF_DISABLE_DEPRECATION_WARNINGS
367 if (avctx->mb_threshold) {
368 av_log(avctx, AV_LOG_WARNING, "The mb_threshold option is deprecated, "
369 "use the static-thresh private option instead.\n");
370 ctx->static_thresh = avctx->mb_threshold;
372 FF_ENABLE_DEPRECATION_WARNINGS
374 codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, ctx->static_thresh);
375 codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf);
377 //provide dummy value to initialize wrapper, values will be updated each _encode()
378 vpx_img_wrap(&ctx->rawimg, ff_vpx_pixfmt_to_imgfmt(avctx->pix_fmt),
379 avctx->width, avctx->height, 1, (unsigned char *)1);
381 cpb_props = ff_add_cpb_side_data(avctx);
383 return AVERROR(ENOMEM);
385 if (enccfg.rc_end_usage == VPX_CBR ||
386 enccfg.g_pass != VPX_RC_ONE_PASS) {
387 cpb_props->max_bitrate = avctx->rc_max_rate;
388 cpb_props->min_bitrate = avctx->rc_min_rate;
389 cpb_props->avg_bitrate = avctx->bit_rate;
391 cpb_props->buffer_size = avctx->rc_buffer_size;
396 static inline void cx_pktcpy(struct FrameListData *dst,
397 const struct vpx_codec_cx_pkt *src)
399 dst->pts = src->data.frame.pts;
400 dst->duration = src->data.frame.duration;
401 dst->flags = src->data.frame.flags;
402 dst->sz = src->data.frame.sz;
403 dst->buf = src->data.frame.buf;
407 * Store coded frame information in format suitable for return from encode2().
409 * Write information from @a cx_frame to @a pkt
410 * @return packet data size on success
411 * @return a negative AVERROR on error
413 static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
416 int ret = ff_alloc_packet(pkt, cx_frame->sz);
418 memcpy(pkt->data, cx_frame->buf, pkt->size);
419 pkt->pts = pkt->dts = cx_frame->pts;
420 #if FF_API_CODED_FRAME
421 FF_DISABLE_DEPRECATION_WARNINGS
422 avctx->coded_frame->pts = cx_frame->pts;
423 avctx->coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY);
424 FF_ENABLE_DEPRECATION_WARNINGS
427 if (!!(cx_frame->flags & VPX_FRAME_IS_KEY)) {
428 #if FF_API_CODED_FRAME
429 FF_DISABLE_DEPRECATION_WARNINGS
430 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
431 FF_ENABLE_DEPRECATION_WARNINGS
433 pkt->flags |= AV_PKT_FLAG_KEY;
435 #if FF_API_CODED_FRAME
436 FF_DISABLE_DEPRECATION_WARNINGS
437 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_P;
438 FF_ENABLE_DEPRECATION_WARNINGS
442 av_log(avctx, AV_LOG_ERROR,
443 "Error getting output packet of size %zu.\n", cx_frame->sz);
450 * Queue multiple output frames from the encoder, returning the front-most.
451 * In cases where vpx_codec_get_cx_data() returns more than 1 frame append
452 * the frame queue. Return the head frame if available.
453 * @return Stored frame size
454 * @return AVERROR(EINVAL) on output size error
455 * @return AVERROR(ENOMEM) on coded frame queue data allocation error
457 static int queue_frames(AVCodecContext *avctx, AVPacket *pkt_out)
459 VP8Context *ctx = avctx->priv_data;
460 const struct vpx_codec_cx_pkt *pkt;
461 const void *iter = NULL;
464 if (ctx->coded_frame_list) {
465 struct FrameListData *cx_frame = ctx->coded_frame_list;
466 /* return the leading frame if we've already begun queueing */
467 size = storeframe(avctx, cx_frame, pkt_out);
470 ctx->coded_frame_list = cx_frame->next;
471 free_coded_frame(cx_frame);
474 /* consume all available output from the encoder before returning. buffers
475 are only good through the next vpx_codec call */
476 while ((pkt = vpx_codec_get_cx_data(&ctx->encoder, &iter))) {
478 case VPX_CODEC_CX_FRAME_PKT:
480 struct FrameListData cx_frame;
482 /* avoid storing the frame when the list is empty and we haven't yet
483 provided a frame for output */
484 assert(!ctx->coded_frame_list);
485 cx_pktcpy(&cx_frame, pkt);
486 size = storeframe(avctx, &cx_frame, pkt_out);
490 struct FrameListData *cx_frame =
491 av_malloc(sizeof(struct FrameListData));
494 av_log(avctx, AV_LOG_ERROR,
495 "Frame queue element alloc failed\n");
496 return AVERROR(ENOMEM);
498 cx_pktcpy(cx_frame, pkt);
499 cx_frame->buf = av_malloc(cx_frame->sz);
501 if (!cx_frame->buf) {
502 av_log(avctx, AV_LOG_ERROR,
503 "Data buffer alloc (%zu bytes) failed\n",
506 return AVERROR(ENOMEM);
508 memcpy(cx_frame->buf, pkt->data.frame.buf, pkt->data.frame.sz);
509 coded_frame_add(&ctx->coded_frame_list, cx_frame);
512 case VPX_CODEC_STATS_PKT: {
513 struct vpx_fixed_buf *stats = &ctx->twopass_stats;
515 if ((err = av_reallocp(&stats->buf,
517 pkt->data.twopass_stats.sz)) < 0) {
519 av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n");
522 memcpy((uint8_t*)stats->buf + stats->sz,
523 pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz);
524 stats->sz += pkt->data.twopass_stats.sz;
527 case VPX_CODEC_PSNR_PKT: //FIXME add support for AV_CODEC_FLAG_PSNR
528 case VPX_CODEC_CUSTOM_PKT:
529 //ignore unsupported/unrecognized packet types
537 static int vp8_encode(AVCodecContext *avctx, AVPacket *pkt,
538 const AVFrame *frame, int *got_packet)
540 VP8Context *ctx = avctx->priv_data;
541 struct vpx_image *rawimg = NULL;
542 int64_t timestamp = 0;
544 vpx_enc_frame_flags_t flags = 0;
547 rawimg = &ctx->rawimg;
548 rawimg->planes[VPX_PLANE_Y] = frame->data[0];
549 rawimg->planes[VPX_PLANE_U] = frame->data[1];
550 rawimg->planes[VPX_PLANE_V] = frame->data[2];
551 rawimg->stride[VPX_PLANE_Y] = frame->linesize[0];
552 rawimg->stride[VPX_PLANE_U] = frame->linesize[1];
553 rawimg->stride[VPX_PLANE_V] = frame->linesize[2];
554 timestamp = frame->pts;
555 #if VPX_IMAGE_ABI_VERSION >= 4
556 switch (frame->color_range) {
557 case AVCOL_RANGE_MPEG:
558 rawimg->range = VPX_CR_STUDIO_RANGE;
560 case AVCOL_RANGE_JPEG:
561 rawimg->range = VPX_CR_FULL_RANGE;
565 if (frame->pict_type == AV_PICTURE_TYPE_I)
566 flags |= VPX_EFLAG_FORCE_KF;
569 res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
570 avctx->ticks_per_frame, flags, ctx->deadline);
571 if (res != VPX_CODEC_OK) {
572 log_encoder_error(avctx, "Error encoding frame");
573 return AVERROR_INVALIDDATA;
575 coded_size = queue_frames(avctx, pkt);
577 if (!frame && avctx->flags & AV_CODEC_FLAG_PASS1) {
578 unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
580 avctx->stats_out = av_malloc(b64_size);
581 if (!avctx->stats_out) {
582 av_log(avctx, AV_LOG_ERROR, "Stat buffer alloc (%d bytes) failed\n",
584 return AVERROR(ENOMEM);
586 av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
587 ctx->twopass_stats.sz);
590 *got_packet = !!coded_size;
594 #define OFFSET(x) offsetof(VP8Context, x)
595 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
596 static const AVOption options[] = {
597 { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {.i64 = 1}, INT_MIN, INT_MAX, VE},
598 { "auto-alt-ref", "Enable use of alternate reference "
599 "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE},
600 { "lag-in-frames", "Number of frames to look ahead for "
601 "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
602 { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
603 { "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
604 { "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE, "arnr_type"},
605 { "backward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1}, 0, 0, VE, "arnr_type" },
606 { "forward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2}, 0, 0, VE, "arnr_type" },
607 { "centered", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 3}, 0, 0, VE, "arnr_type" },
608 { "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {.i64 = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
609 { "best", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"},
610 { "good", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"},
611 { "realtime", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_REALTIME}, 0, 0, VE, "quality"},
612 { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, VE, "er"},
613 #ifdef VPX_ERROR_RESILIENT_DEFAULT
614 { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
615 { "partitions", "The frame partitions are independently decodable "
616 "by the bool decoder, meaning that partitions can be decoded even "
617 "though earlier partitions have been lost. Note that intra predicition"
618 " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"},
620 { "crf", "Select the quality for constant quality mode", offsetof(VP8Context, crf), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, VE },
621 { "static-thresh", "A change threshold on blocks below which they will be skipped by the encoder", OFFSET(static_thresh), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
622 { "drop-threshold", "Frame drop threshold", offsetof(VP8Context, drop_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, VE },
623 { "noise-sensitivity", "Noise sensitivity", OFFSET(noise_sensitivity), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 4, VE},
627 static const AVCodecDefault defaults[] = {
631 { "keyint_min", "-1" },
635 #if CONFIG_LIBVPX_VP8_ENCODER
636 static av_cold int vp8_init(AVCodecContext *avctx)
638 return vpx_init(avctx, &vpx_codec_vp8_cx_algo);
641 static const AVClass class_vp8 = {
642 .class_name = "libvpx encoder",
643 .item_name = av_default_item_name,
645 .version = LIBAVUTIL_VERSION_INT,
648 AVCodec ff_libvpx_vp8_encoder = {
650 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
651 .type = AVMEDIA_TYPE_VIDEO,
652 .id = AV_CODEC_ID_VP8,
653 .priv_data_size = sizeof(VP8Context),
655 .encode2 = vp8_encode,
657 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
658 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
659 .priv_class = &class_vp8,
660 .defaults = defaults,
662 #endif /* CONFIG_LIBVPX_VP8_ENCODER */
664 #if CONFIG_LIBVPX_VP9_ENCODER
665 static av_cold int vp9_init(AVCodecContext *avctx)
667 return vpx_init(avctx, &vpx_codec_vp9_cx_algo);
670 static const AVClass class_vp9 = {
671 .class_name = "libvpx encoder",
672 .item_name = av_default_item_name,
674 .version = LIBAVUTIL_VERSION_INT,
677 static const AVProfile profiles[] = {
678 { FF_PROFILE_VP9_0, "Profile 0" },
679 { FF_PROFILE_VP9_1, "Profile 1" },
680 { FF_PROFILE_VP9_2, "Profile 2" },
681 { FF_PROFILE_VP9_3, "Profile 3" },
682 { FF_PROFILE_UNKNOWN },
685 AVCodec ff_libvpx_vp9_encoder = {
686 .name = "libvpx-vp9",
687 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP9"),
688 .type = AVMEDIA_TYPE_VIDEO,
689 .id = AV_CODEC_ID_VP9,
690 .priv_data_size = sizeof(VP8Context),
692 .encode2 = vp8_encode,
694 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
695 .pix_fmts = (const enum AVPixelFormat[]) {
697 #if VPX_IMAGE_ABI_VERSION >= 3
704 .profiles = NULL_IF_CONFIG_SMALL(profiles),
705 .priv_class = &class_vp9,
706 .defaults = defaults,
708 #endif /* CONFIG_LIBVPX_VP9_ENCODER */