2 * Copyright (c) 2010, Google, Inc.
4 * This file is part of FFmpeg.
6 * FFmpeg 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 * FFmpeg 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 FFmpeg; 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>
33 #include "libavutil/base64.h"
34 #include "libavutil/mathematics.h"
35 #include "libavutil/opt.h"
38 * Portion of struct vpx_codec_cx_pkt from vpx_encoder.h.
39 * One encoded frame returned from the library.
41 struct FrameListData {
42 void *buf; /**< compressed data buffer */
43 size_t sz; /**< length of compressed data */
44 int64_t pts; /**< time stamp to show frame
45 (in timebase units) */
46 unsigned long duration; /**< duration to show frame
47 (in timebase units) */
48 uint32_t flags; /**< flags for this frame */
49 struct FrameListData *next;
52 typedef struct VP8EncoderContext {
54 struct vpx_codec_ctx encoder;
55 struct vpx_image rawimg;
56 struct vpx_fixed_buf twopass_stats;
57 int deadline; //i.e., RT/GOOD/BEST
58 struct FrameListData *coded_frame_list;
72 /** String mappings for enum vp8e_enc_control_id */
73 static const char *ctlidstr[] = {
74 [VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY",
75 [VP8E_UPD_REFERENCE] = "VP8E_UPD_REFERENCE",
76 [VP8E_USE_REFERENCE] = "VP8E_USE_REFERENCE",
77 [VP8E_SET_ROI_MAP] = "VP8E_SET_ROI_MAP",
78 [VP8E_SET_ACTIVEMAP] = "VP8E_SET_ACTIVEMAP",
79 [VP8E_SET_SCALEMODE] = "VP8E_SET_SCALEMODE",
80 [VP8E_SET_CPUUSED] = "VP8E_SET_CPUUSED",
81 [VP8E_SET_ENABLEAUTOALTREF] = "VP8E_SET_ENABLEAUTOALTREF",
82 [VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY",
83 [VP8E_SET_SHARPNESS] = "VP8E_SET_SHARPNESS",
84 [VP8E_SET_STATIC_THRESHOLD] = "VP8E_SET_STATIC_THRESHOLD",
85 [VP8E_SET_TOKEN_PARTITIONS] = "VP8E_SET_TOKEN_PARTITIONS",
86 [VP8E_GET_LAST_QUANTIZER] = "VP8E_GET_LAST_QUANTIZER",
87 [VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES",
88 [VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH",
89 [VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE",
90 [VP8E_SET_CQ_LEVEL] = "VP8E_SET_CQ_LEVEL",
93 static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
95 VP8Context *ctx = avctx->priv_data;
96 const char *error = vpx_codec_error(&ctx->encoder);
97 const char *detail = vpx_codec_error_detail(&ctx->encoder);
99 av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error);
101 av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail);
104 static av_cold void dump_enc_cfg(AVCodecContext *avctx,
105 const struct vpx_codec_enc_cfg *cfg)
108 int level = AV_LOG_DEBUG;
110 av_log(avctx, level, "vpx_codec_enc_cfg\n");
111 av_log(avctx, level, "generic settings\n"
112 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
113 " %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n",
114 width, "g_usage:", cfg->g_usage,
115 width, "g_threads:", cfg->g_threads,
116 width, "g_profile:", cfg->g_profile,
117 width, "g_w:", cfg->g_w,
118 width, "g_h:", cfg->g_h,
119 width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den,
120 width, "g_error_resilient:", cfg->g_error_resilient,
121 width, "g_pass:", cfg->g_pass,
122 width, "g_lag_in_frames:", cfg->g_lag_in_frames);
123 av_log(avctx, level, "rate control settings\n"
124 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
125 " %*s%d\n %*s%p(%zu)\n %*s%u\n",
126 width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh,
127 width, "rc_resize_allowed:", cfg->rc_resize_allowed,
128 width, "rc_resize_up_thresh:", cfg->rc_resize_up_thresh,
129 width, "rc_resize_down_thresh:", cfg->rc_resize_down_thresh,
130 width, "rc_end_usage:", cfg->rc_end_usage,
131 width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz,
132 width, "rc_target_bitrate:", cfg->rc_target_bitrate);
133 av_log(avctx, level, "quantizer settings\n"
135 width, "rc_min_quantizer:", cfg->rc_min_quantizer,
136 width, "rc_max_quantizer:", cfg->rc_max_quantizer);
137 av_log(avctx, level, "bitrate tolerance\n"
139 width, "rc_undershoot_pct:", cfg->rc_undershoot_pct,
140 width, "rc_overshoot_pct:", cfg->rc_overshoot_pct);
141 av_log(avctx, level, "decoder buffer model\n"
142 " %*s%u\n %*s%u\n %*s%u\n",
143 width, "rc_buf_sz:", cfg->rc_buf_sz,
144 width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz,
145 width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz);
146 av_log(avctx, level, "2 pass rate control settings\n"
147 " %*s%u\n %*s%u\n %*s%u\n",
148 width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct,
149 width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct,
150 width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct);
151 av_log(avctx, level, "keyframing settings\n"
152 " %*s%d\n %*s%u\n %*s%u\n",
153 width, "kf_mode:", cfg->kf_mode,
154 width, "kf_min_dist:", cfg->kf_min_dist,
155 width, "kf_max_dist:", cfg->kf_max_dist);
156 av_log(avctx, level, "\n");
159 static void coded_frame_add(void *list, struct FrameListData *cx_frame)
161 struct FrameListData **p = list;
166 cx_frame->next = NULL;
169 static av_cold void free_coded_frame(struct FrameListData *cx_frame)
171 av_freep(&cx_frame->buf);
175 static av_cold void free_frame_list(struct FrameListData *list)
177 struct FrameListData *p = list;
186 static av_cold int codecctl_int(AVCodecContext *avctx,
187 enum vp8e_enc_control_id id, int val)
189 VP8Context *ctx = avctx->priv_data;
194 snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]);
195 av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val);
197 res = vpx_codec_control(&ctx->encoder, id, val);
198 if (res != VPX_CODEC_OK) {
199 snprintf(buf, sizeof(buf), "Failed to set %s codec control",
201 log_encoder_error(avctx, buf);
204 return res == VPX_CODEC_OK ? 0 : AVERROR(EINVAL);
207 static av_cold int vp8_free(AVCodecContext *avctx)
209 VP8Context *ctx = avctx->priv_data;
211 vpx_codec_destroy(&ctx->encoder);
212 av_freep(&ctx->twopass_stats.buf);
213 av_freep(&avctx->coded_frame);
214 av_freep(&avctx->stats_out);
215 free_frame_list(ctx->coded_frame_list);
219 static av_cold int vp8_init(AVCodecContext *avctx)
221 VP8Context *ctx = avctx->priv_data;
222 const struct vpx_codec_iface *iface = &vpx_codec_vp8_cx_algo;
223 struct vpx_codec_enc_cfg enccfg;
226 av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
227 av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
229 if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) {
230 av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n",
231 vpx_codec_err_to_string(res));
232 return AVERROR(EINVAL);
234 dump_enc_cfg(avctx, &enccfg);
236 enccfg.g_w = avctx->width;
237 enccfg.g_h = avctx->height;
238 enccfg.g_timebase.num = avctx->time_base.num;
239 enccfg.g_timebase.den = avctx->time_base.den;
240 enccfg.g_threads = avctx->thread_count;
241 #if FF_API_X264_GLOBAL_OPTS
242 if(avctx->rc_lookahead >= 0)
243 enccfg.g_lag_in_frames= FFMIN(avctx->rc_lookahead, 25); //0-25, avoids init failure
244 if (ctx->lag_in_frames >= 0)
245 enccfg.g_lag_in_frames = ctx->lag_in_frames;
247 enccfg.g_lag_in_frames= ctx->lag_in_frames;
250 if (avctx->flags & CODEC_FLAG_PASS1)
251 enccfg.g_pass = VPX_RC_FIRST_PASS;
252 else if (avctx->flags & CODEC_FLAG_PASS2)
253 enccfg.g_pass = VPX_RC_LAST_PASS;
255 enccfg.g_pass = VPX_RC_ONE_PASS;
257 if (avctx->rc_min_rate == avctx->rc_max_rate &&
258 avctx->rc_min_rate == avctx->bit_rate)
259 enccfg.rc_end_usage = VPX_CBR;
260 #if FF_API_X264_GLOBAL_OPTS
261 else if (avctx->crf || ctx->crf > 0)
265 enccfg.rc_end_usage = VPX_CQ;
266 enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
269 enccfg.rc_min_quantizer = avctx->qmin;
271 enccfg.rc_max_quantizer = avctx->qmax;
272 enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
274 //0-100 (0 => CBR, 100 => VBR)
275 enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
276 enccfg.rc_2pass_vbr_minsection_pct =
277 avctx->rc_min_rate * 100LL / avctx->bit_rate;
278 if (avctx->rc_max_rate)
279 enccfg.rc_2pass_vbr_maxsection_pct =
280 avctx->rc_max_rate * 100LL / avctx->bit_rate;
282 if (avctx->rc_buffer_size)
284 avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
285 if (avctx->rc_initial_buffer_occupancy)
286 enccfg.rc_buf_initial_sz =
287 avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
288 enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
289 enccfg.rc_undershoot_pct = round(avctx->rc_buffer_aggressivity * 100);
291 //_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
292 if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
293 enccfg.kf_min_dist = avctx->keyint_min;
294 if (avctx->gop_size >= 0)
295 enccfg.kf_max_dist = avctx->gop_size;
297 if (enccfg.g_pass == VPX_RC_FIRST_PASS)
298 enccfg.g_lag_in_frames = 0;
299 else if (enccfg.g_pass == VPX_RC_LAST_PASS) {
302 if (!avctx->stats_in) {
303 av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n");
304 return AVERROR_INVALIDDATA;
307 ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;
308 ctx->twopass_stats.buf = av_malloc(ctx->twopass_stats.sz);
309 if (!ctx->twopass_stats.buf) {
310 av_log(avctx, AV_LOG_ERROR,
311 "Stat buffer alloc (%zu bytes) failed\n",
312 ctx->twopass_stats.sz);
313 return AVERROR(ENOMEM);
315 decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,
316 ctx->twopass_stats.sz);
317 if (decode_size < 0) {
318 av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n");
319 return AVERROR_INVALIDDATA;
322 ctx->twopass_stats.sz = decode_size;
323 enccfg.rc_twopass_stats_in = ctx->twopass_stats;
326 /* 0-3: For non-zero values the encoder increasingly optimizes for reduced
327 complexity playback on low powered devices at the expense of encode
329 if (avctx->profile != FF_PROFILE_UNKNOWN)
330 enccfg.g_profile = avctx->profile;
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);
354 codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
355 codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));
356 codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, avctx->mb_threshold);
357 #if FF_API_X264_GLOBAL_OPTS
358 codecctl_int(avctx, VP8E_SET_CQ_LEVEL, (int)avctx->crf);
360 codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf);
362 codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf);
365 av_log(avctx, AV_LOG_DEBUG, "Using deadline: %d\n", ctx->deadline);
367 //provide dummy value to initialize wrapper, values will be updated each _encode()
368 vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
371 avctx->coded_frame = avcodec_alloc_frame();
372 if (!avctx->coded_frame) {
373 av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
375 return AVERROR(ENOMEM);
380 static inline void cx_pktcpy(struct FrameListData *dst,
381 const struct vpx_codec_cx_pkt *src)
383 dst->pts = src->data.frame.pts;
384 dst->duration = src->data.frame.duration;
385 dst->flags = src->data.frame.flags;
386 dst->sz = src->data.frame.sz;
387 dst->buf = src->data.frame.buf;
391 * Store coded frame information in format suitable for return from encode().
393 * Write buffer information from @a cx_frame to @a buf & @a buf_size.
394 * Timing/frame details to @a coded_frame.
395 * @return Frame size written to @a buf on success
396 * @return AVERROR(EINVAL) on error
398 static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
399 uint8_t *buf, int buf_size, AVFrame *coded_frame)
401 if ((int) cx_frame->sz <= buf_size) {
402 buf_size = cx_frame->sz;
403 memcpy(buf, cx_frame->buf, buf_size);
404 coded_frame->pts = cx_frame->pts;
405 coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY);
407 if (coded_frame->key_frame)
408 coded_frame->pict_type = AV_PICTURE_TYPE_I;
410 coded_frame->pict_type = AV_PICTURE_TYPE_P;
412 av_log(avctx, AV_LOG_ERROR,
413 "Compressed frame larger than storage provided! (%zu/%d)\n",
414 cx_frame->sz, buf_size);
415 return AVERROR(EINVAL);
421 * Queue multiple output frames from the encoder, returning the front-most.
422 * In cases where vpx_codec_get_cx_data() returns more than 1 frame append
423 * the frame queue. Return the head frame if available.
424 * @return Stored frame size
425 * @return AVERROR(EINVAL) on output size error
426 * @return AVERROR(ENOMEM) on coded frame queue data allocation error
428 static int queue_frames(AVCodecContext *avctx, uint8_t *buf, int buf_size,
429 AVFrame *coded_frame)
431 VP8Context *ctx = avctx->priv_data;
432 const struct vpx_codec_cx_pkt *pkt;
433 const void *iter = NULL;
436 if (ctx->coded_frame_list) {
437 struct FrameListData *cx_frame = ctx->coded_frame_list;
438 /* return the leading frame if we've already begun queueing */
439 size = storeframe(avctx, cx_frame, buf, buf_size, coded_frame);
441 return AVERROR(EINVAL);
442 ctx->coded_frame_list = cx_frame->next;
443 free_coded_frame(cx_frame);
446 /* consume all available output from the encoder before returning. buffers
447 are only good through the next vpx_codec call */
448 while ((pkt = vpx_codec_get_cx_data(&ctx->encoder, &iter))) {
450 case VPX_CODEC_CX_FRAME_PKT:
452 struct FrameListData cx_frame;
454 /* avoid storing the frame when the list is empty and we haven't yet
455 provided a frame for output */
456 assert(!ctx->coded_frame_list);
457 cx_pktcpy(&cx_frame, pkt);
458 size = storeframe(avctx, &cx_frame, buf, buf_size, coded_frame);
460 return AVERROR(EINVAL);
462 struct FrameListData *cx_frame =
463 av_malloc(sizeof(struct FrameListData));
466 av_log(avctx, AV_LOG_ERROR,
467 "Frame queue element alloc failed\n");
468 return AVERROR(ENOMEM);
470 cx_pktcpy(cx_frame, pkt);
471 cx_frame->buf = av_malloc(cx_frame->sz);
473 if (!cx_frame->buf) {
474 av_log(avctx, AV_LOG_ERROR,
475 "Data buffer alloc (%zu bytes) failed\n",
477 return AVERROR(ENOMEM);
479 memcpy(cx_frame->buf, pkt->data.frame.buf, pkt->data.frame.sz);
480 coded_frame_add(&ctx->coded_frame_list, cx_frame);
483 case VPX_CODEC_STATS_PKT: {
484 struct vpx_fixed_buf *stats = &ctx->twopass_stats;
485 stats->buf = av_realloc_f(stats->buf, 1,
486 stats->sz + pkt->data.twopass_stats.sz);
488 av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n");
489 return AVERROR(ENOMEM);
491 memcpy((uint8_t*)stats->buf + stats->sz,
492 pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz);
493 stats->sz += pkt->data.twopass_stats.sz;
496 case VPX_CODEC_PSNR_PKT: //FIXME add support for CODEC_FLAG_PSNR
497 case VPX_CODEC_CUSTOM_PKT:
498 //ignore unsupported/unrecognized packet types
506 static int vp8_encode(AVCodecContext *avctx, uint8_t *buf, int buf_size,
509 VP8Context *ctx = avctx->priv_data;
510 AVFrame *frame = data;
511 struct vpx_image *rawimg = NULL;
512 int64_t timestamp = 0;
516 rawimg = &ctx->rawimg;
517 rawimg->planes[VPX_PLANE_Y] = frame->data[0];
518 rawimg->planes[VPX_PLANE_U] = frame->data[1];
519 rawimg->planes[VPX_PLANE_V] = frame->data[2];
520 rawimg->stride[VPX_PLANE_Y] = frame->linesize[0];
521 rawimg->stride[VPX_PLANE_U] = frame->linesize[1];
522 rawimg->stride[VPX_PLANE_V] = frame->linesize[2];
523 timestamp = frame->pts;
526 res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
527 avctx->ticks_per_frame, 0, ctx->deadline);
528 if (res != VPX_CODEC_OK) {
529 log_encoder_error(avctx, "Error encoding frame");
530 return AVERROR_INVALIDDATA;
532 coded_size = queue_frames(avctx, buf, buf_size, avctx->coded_frame);
534 if (!frame && avctx->flags & CODEC_FLAG_PASS1) {
535 unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
537 avctx->stats_out = av_malloc(b64_size);
538 if (!avctx->stats_out) {
539 av_log(avctx, AV_LOG_ERROR, "Stat buffer alloc (%d bytes) failed\n",
541 return AVERROR(ENOMEM);
543 av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
544 ctx->twopass_stats.sz);
549 #define OFFSET(x) offsetof(VP8Context, x)
550 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
551 static const AVOption options[] = {
552 { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {INT_MIN}, INT_MIN, INT_MAX, VE},
553 { "auto-alt-ref", "Enable use of alternate reference "
554 "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {-1}, -1, 1, VE},
555 { "lag-in-frames", "Number of frames to look ahead for "
556 "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
557 { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
558 { "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
559 { "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE, "arnr_type"},
560 { "backward", NULL, 0, AV_OPT_TYPE_CONST, {1}, 0, 0, VE, "arnr_type" },
561 { "forward", NULL, 0, AV_OPT_TYPE_CONST, {2}, 0, 0, VE, "arnr_type" },
562 { "centered", NULL, 0, AV_OPT_TYPE_CONST, {3}, 0, 0, VE, "arnr_type" },
563 { "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
564 { "best", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"},
565 { "good", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"},
566 { "realtime", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_REALTIME}, 0, 0, VE, "quality"},
567 { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {0}, INT_MIN, INT_MAX, VE, "er"},
568 #ifdef VPX_ERROR_RESILIENT_DEFAULT
569 { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
570 { "partitions", "The frame partitions are independently decodable "
571 "by the bool decoder, meaning that partitions can be decoded even "
572 "though earlier partitions have been lost. Note that intra predicition"
573 " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"},
575 {"speed", "", offsetof(VP8Context, cpu_used), AV_OPT_TYPE_INT, {.dbl = 3}, -16, 16, VE},
576 {"quality", "", offsetof(VP8Context, deadline), AV_OPT_TYPE_INT, {.dbl = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
577 {"best", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = VPX_DL_BEST_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
578 {"good", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
579 {"realtime", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = VPX_DL_REALTIME}, INT_MIN, INT_MAX, VE, "quality"},
580 {"arnr_max_frames", "altref noise reduction max frame count", offsetof(VP8Context, arnr_max_frames), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 15, VE},
581 {"arnr_strength", "altref noise reduction filter strength", offsetof(VP8Context, arnr_strength), AV_OPT_TYPE_INT, {.dbl = 3}, 0, 6, VE},
582 {"arnr_type", "altref noise reduction filter type", offsetof(VP8Context, arnr_type), AV_OPT_TYPE_INT, {.dbl = 3}, 1, 3, VE},
583 #if FF_API_X264_GLOBAL_OPTS
584 {"rc_lookahead", "Number of frames to look ahead for alternate reference frame selection", offsetof(VP8Context, lag_in_frames), AV_OPT_TYPE_INT, {.dbl = -1}, -1, 25, VE},
585 {"crf", "Select the quality for constant quality mode", offsetof(VP8Context, crf), AV_OPT_TYPE_INT, {.dbl = -1}, -1, 63, VE},
587 {"rc_lookahead", "Number of frames to look ahead for alternate reference frame selection", offsetof(VP8Context, lag_in_frames), AV_OPT_TYPE_INT, {.dbl = 25}, 0, 25, VE},
588 {"crf", "Select the quality for constant quality mode", offsetof(VP8Context, crf), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 63, VE},
593 static const AVClass class = {
594 .class_name = "libvpx encoder",
595 .item_name = av_default_item_name,
597 .version = LIBAVUTIL_VERSION_INT,
600 static const AVCodecDefault defaults[] = {
604 { "keyint_min", "-1" },
608 AVCodec ff_libvpx_encoder = {
610 .type = AVMEDIA_TYPE_VIDEO,
612 .priv_data_size = sizeof(VP8Context),
614 .encode = vp8_encode,
616 .capabilities = CODEC_CAP_DELAY,
617 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
618 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
619 .priv_class = &class,
620 .defaults = defaults,