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 /** String mappings for enum vp8e_enc_control_id */
72 static const char *const ctlidstr[] = {
73 [VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY",
74 [VP8E_UPD_REFERENCE] = "VP8E_UPD_REFERENCE",
75 [VP8E_USE_REFERENCE] = "VP8E_USE_REFERENCE",
76 [VP8E_SET_ROI_MAP] = "VP8E_SET_ROI_MAP",
77 [VP8E_SET_ACTIVEMAP] = "VP8E_SET_ACTIVEMAP",
78 [VP8E_SET_SCALEMODE] = "VP8E_SET_SCALEMODE",
79 [VP8E_SET_CPUUSED] = "VP8E_SET_CPUUSED",
80 [VP8E_SET_ENABLEAUTOALTREF] = "VP8E_SET_ENABLEAUTOALTREF",
81 [VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY",
82 [VP8E_SET_SHARPNESS] = "VP8E_SET_SHARPNESS",
83 [VP8E_SET_STATIC_THRESHOLD] = "VP8E_SET_STATIC_THRESHOLD",
84 [VP8E_SET_TOKEN_PARTITIONS] = "VP8E_SET_TOKEN_PARTITIONS",
85 [VP8E_GET_LAST_QUANTIZER] = "VP8E_GET_LAST_QUANTIZER",
86 [VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES",
87 [VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH",
88 [VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE",
89 [VP8E_SET_CQ_LEVEL] = "VP8E_SET_CQ_LEVEL",
92 static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
94 VP8Context *ctx = avctx->priv_data;
95 const char *error = vpx_codec_error(&ctx->encoder);
96 const char *detail = vpx_codec_error_detail(&ctx->encoder);
98 av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error);
100 av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail);
103 static av_cold void dump_enc_cfg(AVCodecContext *avctx,
104 const struct vpx_codec_enc_cfg *cfg)
107 int level = AV_LOG_DEBUG;
109 av_log(avctx, level, "vpx_codec_enc_cfg\n");
110 av_log(avctx, level, "generic settings\n"
111 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
112 " %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n",
113 width, "g_usage:", cfg->g_usage,
114 width, "g_threads:", cfg->g_threads,
115 width, "g_profile:", cfg->g_profile,
116 width, "g_w:", cfg->g_w,
117 width, "g_h:", cfg->g_h,
118 width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den,
119 width, "g_error_resilient:", cfg->g_error_resilient,
120 width, "g_pass:", cfg->g_pass,
121 width, "g_lag_in_frames:", cfg->g_lag_in_frames);
122 av_log(avctx, level, "rate control settings\n"
123 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
124 " %*s%d\n %*s%p(%zu)\n %*s%u\n",
125 width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh,
126 width, "rc_resize_allowed:", cfg->rc_resize_allowed,
127 width, "rc_resize_up_thresh:", cfg->rc_resize_up_thresh,
128 width, "rc_resize_down_thresh:", cfg->rc_resize_down_thresh,
129 width, "rc_end_usage:", cfg->rc_end_usage,
130 width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz,
131 width, "rc_target_bitrate:", cfg->rc_target_bitrate);
132 av_log(avctx, level, "quantizer settings\n"
134 width, "rc_min_quantizer:", cfg->rc_min_quantizer,
135 width, "rc_max_quantizer:", cfg->rc_max_quantizer);
136 av_log(avctx, level, "bitrate tolerance\n"
138 width, "rc_undershoot_pct:", cfg->rc_undershoot_pct,
139 width, "rc_overshoot_pct:", cfg->rc_overshoot_pct);
140 av_log(avctx, level, "decoder buffer model\n"
141 " %*s%u\n %*s%u\n %*s%u\n",
142 width, "rc_buf_sz:", cfg->rc_buf_sz,
143 width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz,
144 width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz);
145 av_log(avctx, level, "2 pass rate control settings\n"
146 " %*s%u\n %*s%u\n %*s%u\n",
147 width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct,
148 width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct,
149 width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct);
150 av_log(avctx, level, "keyframing settings\n"
151 " %*s%d\n %*s%u\n %*s%u\n",
152 width, "kf_mode:", cfg->kf_mode,
153 width, "kf_min_dist:", cfg->kf_min_dist,
154 width, "kf_max_dist:", cfg->kf_max_dist);
155 av_log(avctx, level, "\n");
158 static void coded_frame_add(void *list, struct FrameListData *cx_frame)
160 struct FrameListData **p = list;
165 cx_frame->next = NULL;
168 static av_cold void free_coded_frame(struct FrameListData *cx_frame)
170 av_freep(&cx_frame->buf);
174 static av_cold void free_frame_list(struct FrameListData *list)
176 struct FrameListData *p = list;
185 static av_cold int codecctl_int(AVCodecContext *avctx,
186 enum vp8e_enc_control_id id, int val)
188 VP8Context *ctx = avctx->priv_data;
193 snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]);
194 av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val);
196 res = vpx_codec_control(&ctx->encoder, id, val);
197 if (res != VPX_CODEC_OK) {
198 snprintf(buf, sizeof(buf), "Failed to set %s codec control",
200 log_encoder_error(avctx, buf);
203 return res == VPX_CODEC_OK ? 0 : AVERROR(EINVAL);
206 static av_cold int vp8_free(AVCodecContext *avctx)
208 VP8Context *ctx = avctx->priv_data;
210 vpx_codec_destroy(&ctx->encoder);
211 av_freep(&ctx->twopass_stats.buf);
212 av_freep(&avctx->coded_frame);
213 av_freep(&avctx->stats_out);
214 free_frame_list(ctx->coded_frame_list);
218 static av_cold int vpx_init(AVCodecContext *avctx,
219 const struct vpx_codec_iface *iface)
221 VP8Context *ctx = avctx->priv_data;
222 struct vpx_codec_enc_cfg enccfg;
225 av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
226 av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
228 if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) {
229 av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n",
230 vpx_codec_err_to_string(res));
231 return AVERROR(EINVAL);
233 dump_enc_cfg(avctx, &enccfg);
235 enccfg.g_w = avctx->width;
236 enccfg.g_h = avctx->height;
237 enccfg.g_timebase.num = avctx->time_base.num;
238 enccfg.g_timebase.den = avctx->time_base.den;
239 enccfg.g_threads = avctx->thread_count;
241 if (ctx->lag_in_frames >= 0)
242 enccfg.g_lag_in_frames = ctx->lag_in_frames;
244 if (avctx->flags & CODEC_FLAG_PASS1)
245 enccfg.g_pass = VPX_RC_FIRST_PASS;
246 else if (avctx->flags & CODEC_FLAG_PASS2)
247 enccfg.g_pass = VPX_RC_LAST_PASS;
249 enccfg.g_pass = VPX_RC_ONE_PASS;
251 if (!avctx->bit_rate)
252 avctx->bit_rate = enccfg.rc_target_bitrate * 1000;
254 enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
258 enccfg.rc_end_usage = VPX_CQ;
259 else if (avctx->rc_min_rate == avctx->rc_max_rate &&
260 avctx->rc_min_rate == avctx->bit_rate)
261 enccfg.rc_end_usage = VPX_CBR;
264 enccfg.rc_min_quantizer = avctx->qmin;
266 enccfg.rc_max_quantizer = avctx->qmax;
267 enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
269 //0-100 (0 => CBR, 100 => VBR)
270 enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
271 enccfg.rc_2pass_vbr_minsection_pct =
272 avctx->rc_min_rate * 100LL / avctx->bit_rate;
273 if (avctx->rc_max_rate)
274 enccfg.rc_2pass_vbr_maxsection_pct =
275 avctx->rc_max_rate * 100LL / avctx->bit_rate;
277 if (avctx->rc_buffer_size)
279 avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
280 if (avctx->rc_initial_buffer_occupancy)
281 enccfg.rc_buf_initial_sz =
282 avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
283 enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
285 //_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
286 if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
287 enccfg.kf_min_dist = avctx->keyint_min;
288 if (avctx->gop_size >= 0)
289 enccfg.kf_max_dist = avctx->gop_size;
291 if (enccfg.g_pass == VPX_RC_FIRST_PASS)
292 enccfg.g_lag_in_frames = 0;
293 else if (enccfg.g_pass == VPX_RC_LAST_PASS) {
296 if (!avctx->stats_in) {
297 av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n");
298 return AVERROR_INVALIDDATA;
301 ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;
302 ctx->twopass_stats.buf = av_malloc(ctx->twopass_stats.sz);
303 if (!ctx->twopass_stats.buf) {
304 av_log(avctx, AV_LOG_ERROR,
305 "Stat buffer alloc (%zu bytes) failed\n",
306 ctx->twopass_stats.sz);
307 return AVERROR(ENOMEM);
309 decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,
310 ctx->twopass_stats.sz);
311 if (decode_size < 0) {
312 av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n");
313 return AVERROR_INVALIDDATA;
316 ctx->twopass_stats.sz = decode_size;
317 enccfg.rc_twopass_stats_in = ctx->twopass_stats;
320 /* 0-3: For non-zero values the encoder increasingly optimizes for reduced
321 complexity playback on low powered devices at the expense of encode
323 if (avctx->profile != FF_PROFILE_UNKNOWN)
324 enccfg.g_profile = avctx->profile;
326 enccfg.g_error_resilient = ctx->error_resilient;
328 dump_enc_cfg(avctx, &enccfg);
329 /* Construct Encoder Context */
330 res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, 0);
331 if (res != VPX_CODEC_OK) {
332 log_encoder_error(avctx, "Failed to initialize encoder");
333 return AVERROR(EINVAL);
336 //codec control failures are currently treated only as warnings
337 av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
338 if (ctx->cpu_used != INT_MIN)
339 codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used);
340 if (ctx->auto_alt_ref >= 0)
341 codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
342 if (ctx->arnr_max_frames >= 0)
343 codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);
344 if (ctx->arnr_strength >= 0)
345 codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);
346 if (ctx->arnr_type >= 0)
347 codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);
348 codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
349 codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));
350 codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, avctx->mb_threshold);
351 codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf);
353 //provide dummy value to initialize wrapper, values will be updated each _encode()
354 vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
357 avctx->coded_frame = av_frame_alloc();
358 if (!avctx->coded_frame) {
359 av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
361 return AVERROR(ENOMEM);
366 static inline void cx_pktcpy(struct FrameListData *dst,
367 const struct vpx_codec_cx_pkt *src)
369 dst->pts = src->data.frame.pts;
370 dst->duration = src->data.frame.duration;
371 dst->flags = src->data.frame.flags;
372 dst->sz = src->data.frame.sz;
373 dst->buf = src->data.frame.buf;
377 * Store coded frame information in format suitable for return from encode2().
379 * Write information from @a cx_frame to @a pkt
380 * @return packet data size on success
381 * @return a negative AVERROR on error
383 static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
384 AVPacket *pkt, AVFrame *coded_frame)
386 int ret = ff_alloc_packet(pkt, cx_frame->sz);
388 memcpy(pkt->data, cx_frame->buf, pkt->size);
389 pkt->pts = pkt->dts = cx_frame->pts;
390 coded_frame->pts = cx_frame->pts;
391 coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY);
393 if (coded_frame->key_frame) {
394 coded_frame->pict_type = AV_PICTURE_TYPE_I;
395 pkt->flags |= AV_PKT_FLAG_KEY;
397 coded_frame->pict_type = AV_PICTURE_TYPE_P;
399 av_log(avctx, AV_LOG_ERROR,
400 "Error getting output packet of size %zu.\n", cx_frame->sz);
407 * Queue multiple output frames from the encoder, returning the front-most.
408 * In cases where vpx_codec_get_cx_data() returns more than 1 frame append
409 * the frame queue. Return the head frame if available.
410 * @return Stored frame size
411 * @return AVERROR(EINVAL) on output size error
412 * @return AVERROR(ENOMEM) on coded frame queue data allocation error
414 static int queue_frames(AVCodecContext *avctx, AVPacket *pkt_out,
415 AVFrame *coded_frame)
417 VP8Context *ctx = avctx->priv_data;
418 const struct vpx_codec_cx_pkt *pkt;
419 const void *iter = NULL;
422 if (ctx->coded_frame_list) {
423 struct FrameListData *cx_frame = ctx->coded_frame_list;
424 /* return the leading frame if we've already begun queueing */
425 size = storeframe(avctx, cx_frame, pkt_out, coded_frame);
428 ctx->coded_frame_list = cx_frame->next;
429 free_coded_frame(cx_frame);
432 /* consume all available output from the encoder before returning. buffers
433 are only good through the next vpx_codec call */
434 while ((pkt = vpx_codec_get_cx_data(&ctx->encoder, &iter))) {
436 case VPX_CODEC_CX_FRAME_PKT:
438 struct FrameListData cx_frame;
440 /* avoid storing the frame when the list is empty and we haven't yet
441 provided a frame for output */
442 assert(!ctx->coded_frame_list);
443 cx_pktcpy(&cx_frame, pkt);
444 size = storeframe(avctx, &cx_frame, pkt_out, coded_frame);
448 struct FrameListData *cx_frame =
449 av_malloc(sizeof(struct FrameListData));
452 av_log(avctx, AV_LOG_ERROR,
453 "Frame queue element alloc failed\n");
454 return AVERROR(ENOMEM);
456 cx_pktcpy(cx_frame, pkt);
457 cx_frame->buf = av_malloc(cx_frame->sz);
459 if (!cx_frame->buf) {
460 av_log(avctx, AV_LOG_ERROR,
461 "Data buffer alloc (%zu bytes) failed\n",
463 return AVERROR(ENOMEM);
465 memcpy(cx_frame->buf, pkt->data.frame.buf, pkt->data.frame.sz);
466 coded_frame_add(&ctx->coded_frame_list, cx_frame);
469 case VPX_CODEC_STATS_PKT: {
470 struct vpx_fixed_buf *stats = &ctx->twopass_stats;
472 if ((err = av_reallocp(&stats->buf,
474 pkt->data.twopass_stats.sz)) < 0) {
476 av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n");
479 memcpy((uint8_t*)stats->buf + stats->sz,
480 pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz);
481 stats->sz += pkt->data.twopass_stats.sz;
484 case VPX_CODEC_PSNR_PKT: //FIXME add support for CODEC_FLAG_PSNR
485 case VPX_CODEC_CUSTOM_PKT:
486 //ignore unsupported/unrecognized packet types
494 static int vp8_encode(AVCodecContext *avctx, AVPacket *pkt,
495 const AVFrame *frame, int *got_packet)
497 VP8Context *ctx = avctx->priv_data;
498 struct vpx_image *rawimg = NULL;
499 int64_t timestamp = 0;
501 vpx_enc_frame_flags_t flags = 0;
504 rawimg = &ctx->rawimg;
505 rawimg->planes[VPX_PLANE_Y] = frame->data[0];
506 rawimg->planes[VPX_PLANE_U] = frame->data[1];
507 rawimg->planes[VPX_PLANE_V] = frame->data[2];
508 rawimg->stride[VPX_PLANE_Y] = frame->linesize[0];
509 rawimg->stride[VPX_PLANE_U] = frame->linesize[1];
510 rawimg->stride[VPX_PLANE_V] = frame->linesize[2];
511 timestamp = frame->pts;
512 if (frame->pict_type == AV_PICTURE_TYPE_I)
513 flags |= VPX_EFLAG_FORCE_KF;
516 res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
517 avctx->ticks_per_frame, flags, ctx->deadline);
518 if (res != VPX_CODEC_OK) {
519 log_encoder_error(avctx, "Error encoding frame");
520 return AVERROR_INVALIDDATA;
522 coded_size = queue_frames(avctx, pkt, avctx->coded_frame);
524 if (!frame && avctx->flags & CODEC_FLAG_PASS1) {
525 unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
527 avctx->stats_out = av_malloc(b64_size);
528 if (!avctx->stats_out) {
529 av_log(avctx, AV_LOG_ERROR, "Stat buffer alloc (%d bytes) failed\n",
531 return AVERROR(ENOMEM);
533 av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
534 ctx->twopass_stats.sz);
537 *got_packet = !!coded_size;
541 #define OFFSET(x) offsetof(VP8Context, x)
542 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
543 static const AVOption options[] = {
544 { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {.i64 = 1}, INT_MIN, INT_MAX, VE},
545 { "auto-alt-ref", "Enable use of alternate reference "
546 "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE},
547 { "lag-in-frames", "Number of frames to look ahead for "
548 "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
549 { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
550 { "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
551 { "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE, "arnr_type"},
552 { "backward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1}, 0, 0, VE, "arnr_type" },
553 { "forward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2}, 0, 0, VE, "arnr_type" },
554 { "centered", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 3}, 0, 0, VE, "arnr_type" },
555 { "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {.i64 = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
556 { "best", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"},
557 { "good", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"},
558 { "realtime", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_REALTIME}, 0, 0, VE, "quality"},
559 { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, VE, "er"},
560 #ifdef VPX_ERROR_RESILIENT_DEFAULT
561 { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
562 { "partitions", "The frame partitions are independently decodable "
563 "by the bool decoder, meaning that partitions can be decoded even "
564 "though earlier partitions have been lost. Note that intra predicition"
565 " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"},
567 { "crf", "Select the quality for constant quality mode", offsetof(VP8Context, crf), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, VE },
571 static const AVCodecDefault defaults[] = {
575 { "keyint_min", "-1" },
579 #if CONFIG_LIBVPX_VP8_ENCODER
580 static av_cold int vp8_init(AVCodecContext *avctx)
582 return vpx_init(avctx, &vpx_codec_vp8_cx_algo);
585 static const AVClass class_vp8 = {
586 .class_name = "libvpx encoder",
587 .item_name = av_default_item_name,
589 .version = LIBAVUTIL_VERSION_INT,
592 AVCodec ff_libvpx_vp8_encoder = {
594 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
595 .type = AVMEDIA_TYPE_VIDEO,
596 .id = AV_CODEC_ID_VP8,
597 .priv_data_size = sizeof(VP8Context),
599 .encode2 = vp8_encode,
601 .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
602 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
603 .priv_class = &class_vp8,
604 .defaults = defaults,
606 #endif /* CONFIG_LIBVPX_VP8_ENCODER */
608 #if CONFIG_LIBVPX_VP9_ENCODER
609 static av_cold int vp9_init(AVCodecContext *avctx)
612 if ((ret = ff_vp9_check_experimental(avctx)))
614 return vpx_init(avctx, &vpx_codec_vp9_cx_algo);
617 static const AVClass class_vp9 = {
618 .class_name = "libvpx encoder",
619 .item_name = av_default_item_name,
621 .version = LIBAVUTIL_VERSION_INT,
624 AVCodec ff_libvpx_vp9_encoder = {
625 .name = "libvpx-vp9",
626 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP9"),
627 .type = AVMEDIA_TYPE_VIDEO,
628 .id = AV_CODEC_ID_VP9,
629 .priv_data_size = sizeof(VP8Context),
631 .encode2 = vp8_encode,
633 .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
634 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
635 .priv_class = &class_vp9,
636 .defaults = defaults,
638 #endif /* CONFIG_LIBVPX_VP9_ENCODER */