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>
33 #include "libavutil/base64.h"
34 #include "libavutil/common.h"
35 #include "libavutil/mathematics.h"
36 #include "libavutil/opt.h"
39 * Portion of struct vpx_codec_cx_pkt from vpx_encoder.h.
40 * One encoded frame returned from the library.
42 struct FrameListData {
43 void *buf; /**< compressed data buffer */
44 size_t sz; /**< length of compressed data */
45 int64_t pts; /**< time stamp to show frame
46 (in timebase units) */
47 unsigned long duration; /**< duration to show frame
48 (in timebase units) */
49 uint32_t flags; /**< flags for this frame */
50 struct FrameListData *next;
53 typedef struct VP8EncoderContext {
55 struct vpx_codec_ctx encoder;
56 struct vpx_image rawimg;
57 struct vpx_fixed_buf twopass_stats;
58 unsigned long deadline; //i.e., RT/GOOD/BEST
59 struct FrameListData *coded_frame_list;
69 /** String mappings for enum vp8e_enc_control_id */
70 static const char *const ctlidstr[] = {
71 [VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY",
72 [VP8E_UPD_REFERENCE] = "VP8E_UPD_REFERENCE",
73 [VP8E_USE_REFERENCE] = "VP8E_USE_REFERENCE",
74 [VP8E_SET_ROI_MAP] = "VP8E_SET_ROI_MAP",
75 [VP8E_SET_ACTIVEMAP] = "VP8E_SET_ACTIVEMAP",
76 [VP8E_SET_SCALEMODE] = "VP8E_SET_SCALEMODE",
77 [VP8E_SET_CPUUSED] = "VP8E_SET_CPUUSED",
78 [VP8E_SET_ENABLEAUTOALTREF] = "VP8E_SET_ENABLEAUTOALTREF",
79 [VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY",
80 [VP8E_SET_SHARPNESS] = "VP8E_SET_SHARPNESS",
81 [VP8E_SET_STATIC_THRESHOLD] = "VP8E_SET_STATIC_THRESHOLD",
82 [VP8E_SET_TOKEN_PARTITIONS] = "VP8E_SET_TOKEN_PARTITIONS",
83 [VP8E_GET_LAST_QUANTIZER] = "VP8E_GET_LAST_QUANTIZER",
84 [VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES",
85 [VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH",
86 [VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE",
89 static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
91 VP8Context *ctx = avctx->priv_data;
92 const char *error = vpx_codec_error(&ctx->encoder);
93 const char *detail = vpx_codec_error_detail(&ctx->encoder);
95 av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error);
97 av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail);
100 static av_cold void dump_enc_cfg(AVCodecContext *avctx,
101 const struct vpx_codec_enc_cfg *cfg)
104 int level = AV_LOG_DEBUG;
106 av_log(avctx, level, "vpx_codec_enc_cfg\n");
107 av_log(avctx, level, "generic settings\n"
108 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
109 " %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n",
110 width, "g_usage:", cfg->g_usage,
111 width, "g_threads:", cfg->g_threads,
112 width, "g_profile:", cfg->g_profile,
113 width, "g_w:", cfg->g_w,
114 width, "g_h:", cfg->g_h,
115 width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den,
116 width, "g_error_resilient:", cfg->g_error_resilient,
117 width, "g_pass:", cfg->g_pass,
118 width, "g_lag_in_frames:", cfg->g_lag_in_frames);
119 av_log(avctx, level, "rate control settings\n"
120 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
121 " %*s%d\n %*s%p(%zu)\n %*s%u\n",
122 width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh,
123 width, "rc_resize_allowed:", cfg->rc_resize_allowed,
124 width, "rc_resize_up_thresh:", cfg->rc_resize_up_thresh,
125 width, "rc_resize_down_thresh:", cfg->rc_resize_down_thresh,
126 width, "rc_end_usage:", cfg->rc_end_usage,
127 width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz,
128 width, "rc_target_bitrate:", cfg->rc_target_bitrate);
129 av_log(avctx, level, "quantizer settings\n"
131 width, "rc_min_quantizer:", cfg->rc_min_quantizer,
132 width, "rc_max_quantizer:", cfg->rc_max_quantizer);
133 av_log(avctx, level, "bitrate tolerance\n"
135 width, "rc_undershoot_pct:", cfg->rc_undershoot_pct,
136 width, "rc_overshoot_pct:", cfg->rc_overshoot_pct);
137 av_log(avctx, level, "decoder buffer model\n"
138 " %*s%u\n %*s%u\n %*s%u\n",
139 width, "rc_buf_sz:", cfg->rc_buf_sz,
140 width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz,
141 width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz);
142 av_log(avctx, level, "2 pass rate control settings\n"
143 " %*s%u\n %*s%u\n %*s%u\n",
144 width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct,
145 width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct,
146 width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct);
147 av_log(avctx, level, "keyframing settings\n"
148 " %*s%d\n %*s%u\n %*s%u\n",
149 width, "kf_mode:", cfg->kf_mode,
150 width, "kf_min_dist:", cfg->kf_min_dist,
151 width, "kf_max_dist:", cfg->kf_max_dist);
152 av_log(avctx, level, "\n");
155 static void coded_frame_add(void *list, struct FrameListData *cx_frame)
157 struct FrameListData **p = list;
162 cx_frame->next = NULL;
165 static av_cold void free_coded_frame(struct FrameListData *cx_frame)
167 av_freep(&cx_frame->buf);
171 static av_cold void free_frame_list(struct FrameListData *list)
173 struct FrameListData *p = list;
182 static av_cold int codecctl_int(AVCodecContext *avctx,
183 enum vp8e_enc_control_id id, int val)
185 VP8Context *ctx = avctx->priv_data;
190 snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]);
191 av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val);
193 res = vpx_codec_control(&ctx->encoder, id, val);
194 if (res != VPX_CODEC_OK) {
195 snprintf(buf, sizeof(buf), "Failed to set %s codec control",
197 log_encoder_error(avctx, buf);
200 return res == VPX_CODEC_OK ? 0 : AVERROR(EINVAL);
203 static av_cold int vp8_free(AVCodecContext *avctx)
205 VP8Context *ctx = avctx->priv_data;
207 vpx_codec_destroy(&ctx->encoder);
208 av_freep(&ctx->twopass_stats.buf);
209 av_freep(&avctx->coded_frame);
210 av_freep(&avctx->stats_out);
211 free_frame_list(ctx->coded_frame_list);
215 static av_cold int vp8_init(AVCodecContext *avctx)
217 VP8Context *ctx = avctx->priv_data;
218 const struct vpx_codec_iface *iface = &vpx_codec_vp8_cx_algo;
219 struct vpx_codec_enc_cfg enccfg;
222 av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
223 av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
225 if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) {
226 av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n",
227 vpx_codec_err_to_string(res));
228 return AVERROR(EINVAL);
230 dump_enc_cfg(avctx, &enccfg);
232 enccfg.g_w = avctx->width;
233 enccfg.g_h = avctx->height;
234 enccfg.g_timebase.num = avctx->time_base.num;
235 enccfg.g_timebase.den = avctx->time_base.den;
236 enccfg.g_threads = avctx->thread_count;
238 if (ctx->lag_in_frames >= 0)
239 enccfg.g_lag_in_frames = ctx->lag_in_frames;
241 if (avctx->flags & CODEC_FLAG_PASS1)
242 enccfg.g_pass = VPX_RC_FIRST_PASS;
243 else if (avctx->flags & CODEC_FLAG_PASS2)
244 enccfg.g_pass = VPX_RC_LAST_PASS;
246 enccfg.g_pass = VPX_RC_ONE_PASS;
248 if (!avctx->bit_rate)
249 avctx->bit_rate = enccfg.rc_target_bitrate * 1000;
251 enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
254 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;
262 enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
264 //0-100 (0 => CBR, 100 => VBR)
265 enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
266 enccfg.rc_2pass_vbr_minsection_pct =
267 avctx->rc_min_rate * 100LL / avctx->bit_rate;
268 if (avctx->rc_max_rate)
269 enccfg.rc_2pass_vbr_maxsection_pct =
270 avctx->rc_max_rate * 100LL / avctx->bit_rate;
272 if (avctx->rc_buffer_size)
274 avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
275 if (avctx->rc_initial_buffer_occupancy)
276 enccfg.rc_buf_initial_sz =
277 avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
278 enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
280 //_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
281 if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
282 enccfg.kf_min_dist = avctx->keyint_min;
283 if (avctx->gop_size >= 0)
284 enccfg.kf_max_dist = avctx->gop_size;
286 if (enccfg.g_pass == VPX_RC_FIRST_PASS)
287 enccfg.g_lag_in_frames = 0;
288 else if (enccfg.g_pass == VPX_RC_LAST_PASS) {
291 if (!avctx->stats_in) {
292 av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n");
293 return AVERROR_INVALIDDATA;
296 ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;
297 ctx->twopass_stats.buf = av_malloc(ctx->twopass_stats.sz);
298 if (!ctx->twopass_stats.buf) {
299 av_log(avctx, AV_LOG_ERROR,
300 "Stat buffer alloc (%zu bytes) failed\n",
301 ctx->twopass_stats.sz);
302 return AVERROR(ENOMEM);
304 decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,
305 ctx->twopass_stats.sz);
306 if (decode_size < 0) {
307 av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n");
308 return AVERROR_INVALIDDATA;
311 ctx->twopass_stats.sz = decode_size;
312 enccfg.rc_twopass_stats_in = ctx->twopass_stats;
315 /* 0-3: For non-zero values the encoder increasingly optimizes for reduced
316 complexity playback on low powered devices at the expense of encode
318 if (avctx->profile != FF_PROFILE_UNKNOWN)
319 enccfg.g_profile = avctx->profile;
321 enccfg.g_error_resilient = ctx->error_resilient;
323 dump_enc_cfg(avctx, &enccfg);
324 /* Construct Encoder Context */
325 res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, 0);
326 if (res != VPX_CODEC_OK) {
327 log_encoder_error(avctx, "Failed to initialize encoder");
328 return AVERROR(EINVAL);
331 //codec control failures are currently treated only as warnings
332 av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
333 if (ctx->cpu_used != INT_MIN)
334 codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used);
335 if (ctx->auto_alt_ref >= 0)
336 codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
337 if (ctx->arnr_max_frames >= 0)
338 codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);
339 if (ctx->arnr_strength >= 0)
340 codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);
341 if (ctx->arnr_type >= 0)
342 codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);
343 codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
344 codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));
345 codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, avctx->mb_threshold);
347 //provide dummy value to initialize wrapper, values will be updated each _encode()
348 vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
351 avctx->coded_frame = avcodec_alloc_frame();
352 if (!avctx->coded_frame) {
353 av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
355 return AVERROR(ENOMEM);
360 static inline void cx_pktcpy(struct FrameListData *dst,
361 const struct vpx_codec_cx_pkt *src)
363 dst->pts = src->data.frame.pts;
364 dst->duration = src->data.frame.duration;
365 dst->flags = src->data.frame.flags;
366 dst->sz = src->data.frame.sz;
367 dst->buf = src->data.frame.buf;
371 * Store coded frame information in format suitable for return from encode2().
373 * Write information from @a cx_frame to @a pkt
374 * @return packet data size on success
375 * @return a negative AVERROR on error
377 static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
378 AVPacket *pkt, AVFrame *coded_frame)
380 int ret = ff_alloc_packet(pkt, cx_frame->sz);
382 memcpy(pkt->data, cx_frame->buf, pkt->size);
383 pkt->pts = pkt->dts = cx_frame->pts;
384 coded_frame->pts = cx_frame->pts;
385 coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY);
387 if (coded_frame->key_frame) {
388 coded_frame->pict_type = AV_PICTURE_TYPE_I;
389 pkt->flags |= AV_PKT_FLAG_KEY;
391 coded_frame->pict_type = AV_PICTURE_TYPE_P;
393 av_log(avctx, AV_LOG_ERROR,
394 "Error getting output packet of size %zu.\n", cx_frame->sz);
401 * Queue multiple output frames from the encoder, returning the front-most.
402 * In cases where vpx_codec_get_cx_data() returns more than 1 frame append
403 * the frame queue. Return the head frame if available.
404 * @return Stored frame size
405 * @return AVERROR(EINVAL) on output size error
406 * @return AVERROR(ENOMEM) on coded frame queue data allocation error
408 static int queue_frames(AVCodecContext *avctx, AVPacket *pkt_out,
409 AVFrame *coded_frame)
411 VP8Context *ctx = avctx->priv_data;
412 const struct vpx_codec_cx_pkt *pkt;
413 const void *iter = NULL;
416 if (ctx->coded_frame_list) {
417 struct FrameListData *cx_frame = ctx->coded_frame_list;
418 /* return the leading frame if we've already begun queueing */
419 size = storeframe(avctx, cx_frame, pkt_out, coded_frame);
422 ctx->coded_frame_list = cx_frame->next;
423 free_coded_frame(cx_frame);
426 /* consume all available output from the encoder before returning. buffers
427 are only good through the next vpx_codec call */
428 while ((pkt = vpx_codec_get_cx_data(&ctx->encoder, &iter))) {
430 case VPX_CODEC_CX_FRAME_PKT:
432 struct FrameListData cx_frame;
434 /* avoid storing the frame when the list is empty and we haven't yet
435 provided a frame for output */
436 assert(!ctx->coded_frame_list);
437 cx_pktcpy(&cx_frame, pkt);
438 size = storeframe(avctx, &cx_frame, pkt_out, coded_frame);
442 struct FrameListData *cx_frame =
443 av_malloc(sizeof(struct FrameListData));
446 av_log(avctx, AV_LOG_ERROR,
447 "Frame queue element alloc failed\n");
448 return AVERROR(ENOMEM);
450 cx_pktcpy(cx_frame, pkt);
451 cx_frame->buf = av_malloc(cx_frame->sz);
453 if (!cx_frame->buf) {
454 av_log(avctx, AV_LOG_ERROR,
455 "Data buffer alloc (%zu bytes) failed\n",
457 return AVERROR(ENOMEM);
459 memcpy(cx_frame->buf, pkt->data.frame.buf, pkt->data.frame.sz);
460 coded_frame_add(&ctx->coded_frame_list, cx_frame);
463 case VPX_CODEC_STATS_PKT: {
464 struct vpx_fixed_buf *stats = &ctx->twopass_stats;
465 stats->buf = av_realloc(stats->buf,
466 stats->sz + pkt->data.twopass_stats.sz);
468 av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n");
469 return AVERROR(ENOMEM);
471 memcpy((uint8_t*)stats->buf + stats->sz,
472 pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz);
473 stats->sz += pkt->data.twopass_stats.sz;
476 case VPX_CODEC_PSNR_PKT: //FIXME add support for CODEC_FLAG_PSNR
477 case VPX_CODEC_CUSTOM_PKT:
478 //ignore unsupported/unrecognized packet types
486 static int vp8_encode(AVCodecContext *avctx, AVPacket *pkt,
487 const AVFrame *frame, int *got_packet)
489 VP8Context *ctx = avctx->priv_data;
490 struct vpx_image *rawimg = NULL;
491 int64_t timestamp = 0;
495 rawimg = &ctx->rawimg;
496 rawimg->planes[VPX_PLANE_Y] = frame->data[0];
497 rawimg->planes[VPX_PLANE_U] = frame->data[1];
498 rawimg->planes[VPX_PLANE_V] = frame->data[2];
499 rawimg->stride[VPX_PLANE_Y] = frame->linesize[0];
500 rawimg->stride[VPX_PLANE_U] = frame->linesize[1];
501 rawimg->stride[VPX_PLANE_V] = frame->linesize[2];
502 timestamp = frame->pts;
505 res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
506 avctx->ticks_per_frame, 0, ctx->deadline);
507 if (res != VPX_CODEC_OK) {
508 log_encoder_error(avctx, "Error encoding frame");
509 return AVERROR_INVALIDDATA;
511 coded_size = queue_frames(avctx, pkt, avctx->coded_frame);
513 if (!frame && avctx->flags & CODEC_FLAG_PASS1) {
514 unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
516 avctx->stats_out = av_malloc(b64_size);
517 if (!avctx->stats_out) {
518 av_log(avctx, AV_LOG_ERROR, "Stat buffer alloc (%d bytes) failed\n",
520 return AVERROR(ENOMEM);
522 av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
523 ctx->twopass_stats.sz);
526 *got_packet = !!coded_size;
530 #define OFFSET(x) offsetof(VP8Context, x)
531 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
532 static const AVOption options[] = {
533 { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {.i64 = INT_MIN}, INT_MIN, INT_MAX, VE},
534 { "auto-alt-ref", "Enable use of alternate reference "
535 "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE},
536 { "lag-in-frames", "Number of frames to look ahead for "
537 "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
538 { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
539 { "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
540 { "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE, "arnr_type"},
541 { "backward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1}, 0, 0, VE, "arnr_type" },
542 { "forward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2}, 0, 0, VE, "arnr_type" },
543 { "centered", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 3}, 0, 0, VE, "arnr_type" },
544 { "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {.i64 = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
545 { "best", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"},
546 { "good", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"},
547 { "realtime", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_REALTIME}, 0, 0, VE, "quality"},
548 { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, VE, "er"},
549 #ifdef VPX_ERROR_RESILIENT_DEFAULT
550 { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
551 { "partitions", "The frame partitions are independently decodable "
552 "by the bool decoder, meaning that partitions can be decoded even "
553 "though earlier partitions have been lost. Note that intra predicition"
554 " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"},
559 static const AVClass class = {
560 .class_name = "libvpx encoder",
561 .item_name = av_default_item_name,
563 .version = LIBAVUTIL_VERSION_INT,
566 static const AVCodecDefault defaults[] = {
570 { "keyint_min", "-1" },
574 AVCodec ff_libvpx_encoder = {
576 .type = AVMEDIA_TYPE_VIDEO,
577 .id = AV_CODEC_ID_VP8,
578 .priv_data_size = sizeof(VP8Context),
580 .encode2 = vp8_encode,
582 .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
583 .pix_fmts = (const enum PixelFormat[]){ PIX_FMT_YUV420P, PIX_FMT_NONE },
584 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
585 .priv_class = &class,
586 .defaults = defaults,