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/avassert.h"
34 #include "libavutil/base64.h"
35 #include "libavutil/common.h"
36 #include "libavutil/intreadwrite.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/opt.h"
41 * Portion of struct vpx_codec_cx_pkt from vpx_encoder.h.
42 * One encoded frame returned from the library.
44 struct FrameListData {
45 void *buf; /**< compressed data buffer */
46 size_t sz; /**< length of compressed data */
49 int64_t pts; /**< time stamp to show frame
50 (in timebase units) */
51 unsigned long duration; /**< duration to show frame
52 (in timebase units) */
53 uint32_t flags; /**< flags for this frame */
55 int have_sse; /**< true if we have pending sse[] */
56 uint64_t frame_number;
57 struct FrameListData *next;
60 typedef struct VP8EncoderContext {
62 struct vpx_codec_ctx encoder;
63 struct vpx_image rawimg;
64 struct vpx_codec_ctx encoder_alpha;
65 struct vpx_image rawimg_alpha;
67 struct vpx_fixed_buf twopass_stats;
68 int deadline; //i.e., RT/GOOD/BEST
70 int have_sse; /**< true if we have pending sse[] */
71 uint64_t frame_number;
72 struct FrameListData *coded_frame_list;
76 * VP8 specific flags, see VP8F_* below.
79 #define VP8F_ERROR_RESILIENT 0x00000001 ///< Enable measures appropriate for streaming over lossy links
80 #define VP8F_AUTO_ALT_REF 0x00000002 ///< Enable automatic alternate reference frame generation
94 /** String mappings for enum vp8e_enc_control_id */
95 static const char *const ctlidstr[] = {
96 [VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY",
97 [VP8E_UPD_REFERENCE] = "VP8E_UPD_REFERENCE",
98 [VP8E_USE_REFERENCE] = "VP8E_USE_REFERENCE",
99 [VP8E_SET_ROI_MAP] = "VP8E_SET_ROI_MAP",
100 [VP8E_SET_ACTIVEMAP] = "VP8E_SET_ACTIVEMAP",
101 [VP8E_SET_SCALEMODE] = "VP8E_SET_SCALEMODE",
102 [VP8E_SET_CPUUSED] = "VP8E_SET_CPUUSED",
103 [VP8E_SET_ENABLEAUTOALTREF] = "VP8E_SET_ENABLEAUTOALTREF",
104 [VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY",
105 [VP8E_SET_SHARPNESS] = "VP8E_SET_SHARPNESS",
106 [VP8E_SET_STATIC_THRESHOLD] = "VP8E_SET_STATIC_THRESHOLD",
107 [VP8E_SET_TOKEN_PARTITIONS] = "VP8E_SET_TOKEN_PARTITIONS",
108 [VP8E_GET_LAST_QUANTIZER] = "VP8E_GET_LAST_QUANTIZER",
109 [VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES",
110 [VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH",
111 [VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE",
112 [VP8E_SET_CQ_LEVEL] = "VP8E_SET_CQ_LEVEL",
113 [VP8E_SET_MAX_INTRA_BITRATE_PCT] = "VP8E_SET_MAX_INTRA_BITRATE_PCT",
116 static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
118 VP8Context *ctx = avctx->priv_data;
119 const char *error = vpx_codec_error(&ctx->encoder);
120 const char *detail = vpx_codec_error_detail(&ctx->encoder);
122 av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error);
124 av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail);
127 static av_cold void dump_enc_cfg(AVCodecContext *avctx,
128 const struct vpx_codec_enc_cfg *cfg)
131 int level = AV_LOG_DEBUG;
133 av_log(avctx, level, "vpx_codec_enc_cfg\n");
134 av_log(avctx, level, "generic settings\n"
135 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
136 " %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n",
137 width, "g_usage:", cfg->g_usage,
138 width, "g_threads:", cfg->g_threads,
139 width, "g_profile:", cfg->g_profile,
140 width, "g_w:", cfg->g_w,
141 width, "g_h:", cfg->g_h,
142 width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den,
143 width, "g_error_resilient:", cfg->g_error_resilient,
144 width, "g_pass:", cfg->g_pass,
145 width, "g_lag_in_frames:", cfg->g_lag_in_frames);
146 av_log(avctx, level, "rate control settings\n"
147 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
148 " %*s%d\n %*s%p(%zu)\n %*s%u\n",
149 width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh,
150 width, "rc_resize_allowed:", cfg->rc_resize_allowed,
151 width, "rc_resize_up_thresh:", cfg->rc_resize_up_thresh,
152 width, "rc_resize_down_thresh:", cfg->rc_resize_down_thresh,
153 width, "rc_end_usage:", cfg->rc_end_usage,
154 width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz,
155 width, "rc_target_bitrate:", cfg->rc_target_bitrate);
156 av_log(avctx, level, "quantizer settings\n"
158 width, "rc_min_quantizer:", cfg->rc_min_quantizer,
159 width, "rc_max_quantizer:", cfg->rc_max_quantizer);
160 av_log(avctx, level, "bitrate tolerance\n"
162 width, "rc_undershoot_pct:", cfg->rc_undershoot_pct,
163 width, "rc_overshoot_pct:", cfg->rc_overshoot_pct);
164 av_log(avctx, level, "decoder buffer model\n"
165 " %*s%u\n %*s%u\n %*s%u\n",
166 width, "rc_buf_sz:", cfg->rc_buf_sz,
167 width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz,
168 width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz);
169 av_log(avctx, level, "2 pass rate control settings\n"
170 " %*s%u\n %*s%u\n %*s%u\n",
171 width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct,
172 width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct,
173 width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct);
174 av_log(avctx, level, "keyframing settings\n"
175 " %*s%d\n %*s%u\n %*s%u\n",
176 width, "kf_mode:", cfg->kf_mode,
177 width, "kf_min_dist:", cfg->kf_min_dist,
178 width, "kf_max_dist:", cfg->kf_max_dist);
179 av_log(avctx, level, "\n");
182 static void coded_frame_add(void *list, struct FrameListData *cx_frame)
184 struct FrameListData **p = list;
189 cx_frame->next = NULL;
192 static av_cold void free_coded_frame(struct FrameListData *cx_frame)
194 av_freep(&cx_frame->buf);
195 if (cx_frame->buf_alpha)
196 av_freep(&cx_frame->buf_alpha);
200 static av_cold void free_frame_list(struct FrameListData *list)
202 struct FrameListData *p = list;
211 static av_cold int codecctl_int(AVCodecContext *avctx,
212 enum vp8e_enc_control_id id, int val)
214 VP8Context *ctx = avctx->priv_data;
219 snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]);
220 av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val);
222 res = vpx_codec_control(&ctx->encoder, id, val);
223 if (res != VPX_CODEC_OK) {
224 snprintf(buf, sizeof(buf), "Failed to set %s codec control",
226 log_encoder_error(avctx, buf);
229 return res == VPX_CODEC_OK ? 0 : AVERROR(EINVAL);
232 static av_cold int vp8_free(AVCodecContext *avctx)
234 VP8Context *ctx = avctx->priv_data;
236 vpx_codec_destroy(&ctx->encoder);
238 vpx_codec_destroy(&ctx->encoder_alpha);
239 av_freep(&ctx->twopass_stats.buf);
240 av_freep(&avctx->coded_frame);
241 av_freep(&avctx->stats_out);
242 free_frame_list(ctx->coded_frame_list);
246 static av_cold int vpx_init(AVCodecContext *avctx,
247 const struct vpx_codec_iface *iface)
249 VP8Context *ctx = avctx->priv_data;
250 struct vpx_codec_enc_cfg enccfg;
251 struct vpx_codec_enc_cfg enccfg_alpha;
252 vpx_codec_flags_t flags = (avctx->flags & CODEC_FLAG_PSNR) ? VPX_CODEC_USE_PSNR : 0;
255 av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
256 av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
258 if (avctx->pix_fmt == AV_PIX_FMT_YUVA420P)
261 if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) {
262 av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n",
263 vpx_codec_err_to_string(res));
264 return AVERROR(EINVAL);
268 if(avctx->rc_max_rate || avctx->rc_buffer_size || avctx->rc_initial_buffer_occupancy) {
269 av_log( avctx, AV_LOG_ERROR, "Rate control parameters set without a bitrate\n");
270 return AVERROR(EINVAL);
273 dump_enc_cfg(avctx, &enccfg);
275 enccfg.g_w = avctx->width;
276 enccfg.g_h = avctx->height;
277 enccfg.g_timebase.num = avctx->time_base.num;
278 enccfg.g_timebase.den = avctx->time_base.den;
279 enccfg.g_threads = avctx->thread_count;
280 enccfg.g_lag_in_frames= ctx->lag_in_frames;
282 if (avctx->flags & CODEC_FLAG_PASS1)
283 enccfg.g_pass = VPX_RC_FIRST_PASS;
284 else if (avctx->flags & CODEC_FLAG_PASS2)
285 enccfg.g_pass = VPX_RC_LAST_PASS;
287 enccfg.g_pass = VPX_RC_ONE_PASS;
289 if (avctx->rc_min_rate == avctx->rc_max_rate &&
290 avctx->rc_min_rate == avctx->bit_rate && avctx->bit_rate)
291 enccfg.rc_end_usage = VPX_CBR;
293 enccfg.rc_end_usage = VPX_CQ;
295 if (avctx->bit_rate) {
296 enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
299 if (enccfg.rc_end_usage == VPX_CQ) {
300 enccfg.rc_target_bitrate = 1000000;
302 avctx->bit_rate = enccfg.rc_target_bitrate * 1000;
303 av_log(avctx, AV_LOG_WARNING,
304 "Neither bitrate nor constrained quality specified, using default bitrate of %dkbit/sec\n",
305 enccfg.rc_target_bitrate);
309 if (avctx->qmin >= 0)
310 enccfg.rc_min_quantizer = avctx->qmin;
312 enccfg.rc_max_quantizer = avctx->qmax;
314 if (enccfg.rc_end_usage == VPX_CQ) {
315 if (ctx->crf < enccfg.rc_min_quantizer || ctx->crf > enccfg.rc_max_quantizer) {
316 av_log(avctx, AV_LOG_ERROR,
317 "CQ level must be between minimum and maximum quantizer value (%d-%d)\n",
318 enccfg.rc_min_quantizer, enccfg.rc_max_quantizer);
319 return AVERROR(EINVAL);
323 enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
325 //0-100 (0 => CBR, 100 => VBR)
326 enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
328 enccfg.rc_2pass_vbr_minsection_pct =
329 avctx->rc_min_rate * 100LL / avctx->bit_rate;
330 if (avctx->rc_max_rate)
331 enccfg.rc_2pass_vbr_maxsection_pct =
332 avctx->rc_max_rate * 100LL / avctx->bit_rate;
334 if (avctx->rc_buffer_size)
336 avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
337 if (avctx->rc_initial_buffer_occupancy)
338 enccfg.rc_buf_initial_sz =
339 avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
340 enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
341 enccfg.rc_undershoot_pct = round(avctx->rc_buffer_aggressivity * 100);
343 //_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
344 if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
345 enccfg.kf_min_dist = avctx->keyint_min;
346 if (avctx->gop_size >= 0)
347 enccfg.kf_max_dist = avctx->gop_size;
349 if (enccfg.g_pass == VPX_RC_FIRST_PASS)
350 enccfg.g_lag_in_frames = 0;
351 else if (enccfg.g_pass == VPX_RC_LAST_PASS) {
354 if (!avctx->stats_in) {
355 av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n");
356 return AVERROR_INVALIDDATA;
359 ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;
360 ctx->twopass_stats.buf = av_malloc(ctx->twopass_stats.sz);
361 if (!ctx->twopass_stats.buf) {
362 av_log(avctx, AV_LOG_ERROR,
363 "Stat buffer alloc (%zu bytes) failed\n",
364 ctx->twopass_stats.sz);
365 return AVERROR(ENOMEM);
367 decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,
368 ctx->twopass_stats.sz);
369 if (decode_size < 0) {
370 av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n");
371 return AVERROR_INVALIDDATA;
374 ctx->twopass_stats.sz = decode_size;
375 enccfg.rc_twopass_stats_in = ctx->twopass_stats;
378 /* 0-3: For non-zero values the encoder increasingly optimizes for reduced
379 complexity playback on low powered devices at the expense of encode
381 if (avctx->profile != FF_PROFILE_UNKNOWN)
382 enccfg.g_profile = avctx->profile;
384 enccfg.g_error_resilient = ctx->error_resilient || ctx->flags & VP8F_ERROR_RESILIENT;
386 dump_enc_cfg(avctx, &enccfg);
387 /* Construct Encoder Context */
388 res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, flags);
389 if (res != VPX_CODEC_OK) {
390 log_encoder_error(avctx, "Failed to initialize encoder");
391 return AVERROR(EINVAL);
395 enccfg_alpha = enccfg;
396 res = vpx_codec_enc_init(&ctx->encoder_alpha, iface, &enccfg_alpha, flags);
397 if (res != VPX_CODEC_OK) {
398 log_encoder_error(avctx, "Failed to initialize alpha encoder");
399 return AVERROR(EINVAL);
403 //codec control failures are currently treated only as warnings
404 av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
405 if (ctx->cpu_used != INT_MIN)
406 codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used);
407 if (ctx->flags & VP8F_AUTO_ALT_REF)
408 ctx->auto_alt_ref = 1;
409 if (ctx->auto_alt_ref >= 0)
410 codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
411 if (ctx->arnr_max_frames >= 0)
412 codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);
413 if (ctx->arnr_strength >= 0)
414 codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);
415 if (ctx->arnr_type >= 0)
416 codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);
417 codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
418 codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));
419 codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, avctx->mb_threshold);
420 codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf);
421 if (ctx->max_intra_rate >= 0)
422 codecctl_int(avctx, VP8E_SET_MAX_INTRA_BITRATE_PCT, ctx->max_intra_rate);
424 av_log(avctx, AV_LOG_DEBUG, "Using deadline: %d\n", ctx->deadline);
426 //provide dummy value to initialize wrapper, values will be updated each _encode()
427 vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
431 vpx_img_wrap(&ctx->rawimg_alpha, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
434 avctx->coded_frame = avcodec_alloc_frame();
435 if (!avctx->coded_frame) {
436 av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
438 return AVERROR(ENOMEM);
443 static inline void cx_pktcpy(struct FrameListData *dst,
444 const struct vpx_codec_cx_pkt *src,
445 const struct vpx_codec_cx_pkt *src_alpha,
448 dst->pts = src->data.frame.pts;
449 dst->duration = src->data.frame.duration;
450 dst->flags = src->data.frame.flags;
451 dst->sz = src->data.frame.sz;
452 dst->buf = src->data.frame.buf;
454 /* For alt-ref frame, don't store PSNR or increment frame_number */
455 if (!(dst->flags & VPX_FRAME_IS_INVISIBLE)) {
456 dst->frame_number = ++ctx->frame_number;
457 dst->have_sse = ctx->have_sse;
459 /* associate last-seen SSE to the frame. */
460 /* Transfers ownership from ctx to dst. */
461 /* WARNING! This makes the assumption that PSNR_PKT comes
462 just before the frame it refers to! */
463 memcpy(dst->sse, ctx->sse, sizeof(dst->sse));
467 dst->frame_number = -1; /* sanity marker */
470 dst->buf_alpha = src_alpha->data.frame.buf;
471 dst->sz_alpha = src_alpha->data.frame.sz;
474 dst->buf_alpha = NULL;
480 * Store coded frame information in format suitable for return from encode2().
482 * Write information from @a cx_frame to @a pkt
483 * @return packet data size on success
484 * @return a negative AVERROR on error
486 static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
487 AVPacket *pkt, AVFrame *coded_frame)
489 int ret = ff_alloc_packet2(avctx, pkt, cx_frame->sz);
492 memcpy(pkt->data, cx_frame->buf, pkt->size);
493 pkt->pts = pkt->dts = cx_frame->pts;
494 coded_frame->pts = cx_frame->pts;
495 coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY);
497 if (coded_frame->key_frame) {
498 coded_frame->pict_type = AV_PICTURE_TYPE_I;
499 pkt->flags |= AV_PKT_FLAG_KEY;
501 coded_frame->pict_type = AV_PICTURE_TYPE_P;
503 if (cx_frame->have_sse) {
505 /* Beware of the Y/U/V/all order! */
506 coded_frame->error[0] = cx_frame->sse[1];
507 coded_frame->error[1] = cx_frame->sse[2];
508 coded_frame->error[2] = cx_frame->sse[3];
509 coded_frame->error[3] = 0; // alpha
510 for (i = 0; i < 4; ++i) {
511 avctx->error[i] += coded_frame->error[i];
513 cx_frame->have_sse = 0;
515 if (cx_frame->sz_alpha > 0) {
516 side_data = av_packet_new_side_data(pkt,
517 AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
518 cx_frame->sz_alpha + 8);
519 if(side_data == NULL) {
522 return AVERROR(ENOMEM);
524 AV_WB64(side_data, 1);
525 memcpy(side_data + 8, cx_frame->buf_alpha, cx_frame->sz_alpha);
534 * Queue multiple output frames from the encoder, returning the front-most.
535 * In cases where vpx_codec_get_cx_data() returns more than 1 frame append
536 * the frame queue. Return the head frame if available.
537 * @return Stored frame size
538 * @return AVERROR(EINVAL) on output size error
539 * @return AVERROR(ENOMEM) on coded frame queue data allocation error
541 static int queue_frames(AVCodecContext *avctx, AVPacket *pkt_out,
542 AVFrame *coded_frame)
544 VP8Context *ctx = avctx->priv_data;
545 const struct vpx_codec_cx_pkt *pkt;
546 const struct vpx_codec_cx_pkt *pkt_alpha = NULL;
547 const void *iter = NULL;
548 const void *iter_alpha = NULL;
551 if (ctx->coded_frame_list) {
552 struct FrameListData *cx_frame = ctx->coded_frame_list;
553 /* return the leading frame if we've already begun queueing */
554 size = storeframe(avctx, cx_frame, pkt_out, coded_frame);
557 ctx->coded_frame_list = cx_frame->next;
558 free_coded_frame(cx_frame);
561 /* consume all available output from the encoder before returning. buffers
562 are only good through the next vpx_codec call */
563 while ((pkt = vpx_codec_get_cx_data(&ctx->encoder, &iter)) &&
565 (ctx->is_alpha && (pkt_alpha = vpx_codec_get_cx_data(&ctx->encoder_alpha, &iter_alpha))))) {
567 case VPX_CODEC_CX_FRAME_PKT:
569 struct FrameListData cx_frame;
571 /* avoid storing the frame when the list is empty and we haven't yet
572 provided a frame for output */
573 av_assert0(!ctx->coded_frame_list);
574 cx_pktcpy(&cx_frame, pkt, pkt_alpha, ctx);
575 size = storeframe(avctx, &cx_frame, pkt_out, coded_frame);
579 struct FrameListData *cx_frame =
580 av_malloc(sizeof(struct FrameListData));
583 av_log(avctx, AV_LOG_ERROR,
584 "Frame queue element alloc failed\n");
585 return AVERROR(ENOMEM);
587 cx_pktcpy(cx_frame, pkt, pkt_alpha, ctx);
588 cx_frame->buf = av_malloc(cx_frame->sz);
590 if (!cx_frame->buf) {
591 av_log(avctx, AV_LOG_ERROR,
592 "Data buffer alloc (%zu bytes) failed\n",
595 return AVERROR(ENOMEM);
597 memcpy(cx_frame->buf, pkt->data.frame.buf, pkt->data.frame.sz);
599 cx_frame->buf_alpha = av_malloc(cx_frame->sz_alpha);
600 if (!cx_frame->buf_alpha) {
601 av_log(avctx, AV_LOG_ERROR,
602 "Data buffer alloc (%zu bytes) failed\n",
605 return AVERROR(ENOMEM);
607 memcpy(cx_frame->buf_alpha, pkt_alpha->data.frame.buf, pkt_alpha->data.frame.sz);
609 coded_frame_add(&ctx->coded_frame_list, cx_frame);
612 case VPX_CODEC_STATS_PKT: {
613 struct vpx_fixed_buf *stats = &ctx->twopass_stats;
614 stats->buf = av_realloc_f(stats->buf, 1,
615 stats->sz + pkt->data.twopass_stats.sz);
617 av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n");
618 return AVERROR(ENOMEM);
620 memcpy((uint8_t*)stats->buf + stats->sz,
621 pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz);
622 stats->sz += pkt->data.twopass_stats.sz;
625 case VPX_CODEC_PSNR_PKT:
626 av_assert0(!ctx->have_sse);
627 ctx->sse[0] = pkt->data.psnr.sse[0];
628 ctx->sse[1] = pkt->data.psnr.sse[1];
629 ctx->sse[2] = pkt->data.psnr.sse[2];
630 ctx->sse[3] = pkt->data.psnr.sse[3];
633 case VPX_CODEC_CUSTOM_PKT:
634 //ignore unsupported/unrecognized packet types
642 static int vp8_encode(AVCodecContext *avctx, AVPacket *pkt,
643 const AVFrame *frame, int *got_packet)
645 VP8Context *ctx = avctx->priv_data;
646 struct vpx_image *rawimg = NULL;
647 struct vpx_image *rawimg_alpha = NULL;
648 int64_t timestamp = 0;
650 vpx_enc_frame_flags_t flags = 0;
653 rawimg = &ctx->rawimg;
654 rawimg->planes[VPX_PLANE_Y] = frame->data[0];
655 rawimg->planes[VPX_PLANE_U] = frame->data[1];
656 rawimg->planes[VPX_PLANE_V] = frame->data[2];
657 rawimg->stride[VPX_PLANE_Y] = frame->linesize[0];
658 rawimg->stride[VPX_PLANE_U] = frame->linesize[1];
659 rawimg->stride[VPX_PLANE_V] = frame->linesize[2];
661 uint8_t *u_plane, *v_plane;
662 rawimg_alpha = &ctx->rawimg_alpha;
663 rawimg_alpha->planes[VPX_PLANE_Y] = frame->data[3];
664 u_plane = av_malloc(frame->linesize[1] * frame->height);
665 memset(u_plane, 0x80, frame->linesize[1] * frame->height);
666 rawimg_alpha->planes[VPX_PLANE_U] = u_plane;
667 v_plane = av_malloc(frame->linesize[2] * frame->height);
668 memset(v_plane, 0x80, frame->linesize[2] * frame->height);
669 rawimg_alpha->planes[VPX_PLANE_V] = v_plane;
671 timestamp = frame->pts;
672 if (frame->pict_type == AV_PICTURE_TYPE_I)
673 flags |= VPX_EFLAG_FORCE_KF;
676 res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
677 avctx->ticks_per_frame, flags, ctx->deadline);
678 if (res != VPX_CODEC_OK) {
679 log_encoder_error(avctx, "Error encoding frame");
680 return AVERROR_INVALIDDATA;
684 res = vpx_codec_encode(&ctx->encoder_alpha, rawimg_alpha, timestamp,
685 avctx->ticks_per_frame, flags, ctx->deadline);
686 if (res != VPX_CODEC_OK) {
687 log_encoder_error(avctx, "Error encoding alpha frame");
688 return AVERROR_INVALIDDATA;
692 coded_size = queue_frames(avctx, pkt, avctx->coded_frame);
694 if (!frame && avctx->flags & CODEC_FLAG_PASS1) {
695 unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
697 avctx->stats_out = av_malloc(b64_size);
698 if (!avctx->stats_out) {
699 av_log(avctx, AV_LOG_ERROR, "Stat buffer alloc (%d bytes) failed\n",
701 return AVERROR(ENOMEM);
703 av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
704 ctx->twopass_stats.sz);
708 av_free(rawimg_alpha->planes[VPX_PLANE_U]);
709 av_free(rawimg_alpha->planes[VPX_PLANE_V]);
712 *got_packet = !!coded_size;
716 #define OFFSET(x) offsetof(VP8Context, x)
717 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
718 static const AVOption options[] = {
719 { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {.i64 = INT_MIN}, INT_MIN, INT_MAX, VE},
720 { "auto-alt-ref", "Enable use of alternate reference "
721 "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE},
722 { "lag-in-frames", "Number of frames to look ahead for "
723 "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
724 { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
725 { "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
726 { "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE, "arnr_type"},
727 { "backward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1}, 0, 0, VE, "arnr_type" },
728 { "forward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2}, 0, 0, VE, "arnr_type" },
729 { "centered", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 3}, 0, 0, VE, "arnr_type" },
730 { "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {.i64 = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
731 { "best", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"},
732 { "good", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"},
733 { "realtime", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_REALTIME}, 0, 0, VE, "quality"},
734 { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, VE, "er"},
735 { "max-intra-rate", "Maximum I-frame bitrate (pct) 0=unlimited", OFFSET(max_intra_rate), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
736 #ifdef VPX_ERROR_RESILIENT_DEFAULT
737 { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
738 { "partitions", "The frame partitions are independently decodable "
739 "by the bool decoder, meaning that partitions can be decoded even "
740 "though earlier partitions have been lost. Note that intra predicition"
741 " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"},
743 {"speed", "", offsetof(VP8Context, cpu_used), AV_OPT_TYPE_INT, {.i64 = 3}, -16, 16, VE},
744 {"quality", "", offsetof(VP8Context, deadline), AV_OPT_TYPE_INT, {.i64 = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
745 {"vp8flags", "", offsetof(VP8Context, flags), FF_OPT_TYPE_FLAGS, {.i64 = 0}, 0, UINT_MAX, VE, "flags"},
746 {"error_resilient", "enable error resilience", 0, FF_OPT_TYPE_CONST, {.dbl = VP8F_ERROR_RESILIENT}, INT_MIN, INT_MAX, VE, "flags"},
747 {"altref", "enable use of alternate reference frames (VP8/2-pass only)", 0, FF_OPT_TYPE_CONST, {.dbl = VP8F_AUTO_ALT_REF}, INT_MIN, INT_MAX, VE, "flags"},
748 {"arnr_max_frames", "altref noise reduction max frame count", offsetof(VP8Context, arnr_max_frames), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 15, VE},
749 {"arnr_strength", "altref noise reduction filter strength", offsetof(VP8Context, arnr_strength), AV_OPT_TYPE_INT, {.i64 = 3}, 0, 6, VE},
750 {"arnr_type", "altref noise reduction filter type", offsetof(VP8Context, arnr_type), AV_OPT_TYPE_INT, {.i64 = 3}, 1, 3, VE},
751 {"rc_lookahead", "Number of frames to look ahead for alternate reference frame selection", offsetof(VP8Context, lag_in_frames), AV_OPT_TYPE_INT, {.i64 = 25}, 0, 25, VE},
752 { "crf", "Select the quality for constant quality mode", offsetof(VP8Context, crf), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, VE },
756 static const AVCodecDefault defaults[] = {
760 { "keyint_min", "-1" },
764 #if CONFIG_LIBVPX_VP8_ENCODER
765 static av_cold int vp8_init(AVCodecContext *avctx)
767 return vpx_init(avctx, &vpx_codec_vp8_cx_algo);
770 static const AVClass class_vp8 = {
771 .class_name = "libvpx encoder",
772 .item_name = av_default_item_name,
774 .version = LIBAVUTIL_VERSION_INT,
777 AVCodec ff_libvpx_vp8_encoder = {
779 .type = AVMEDIA_TYPE_VIDEO,
780 .id = AV_CODEC_ID_VP8,
781 .priv_data_size = sizeof(VP8Context),
783 .encode2 = vp8_encode,
785 .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
786 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_NONE },
787 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
788 .priv_class = &class_vp8,
789 .defaults = defaults,
791 #endif /* CONFIG_LIBVPX_VP8_ENCODER */
793 #if CONFIG_LIBVPX_VP9_ENCODER
794 static av_cold int vp9_init(AVCodecContext *avctx)
796 return vpx_init(avctx, &vpx_codec_vp9_cx_algo);
799 static const AVClass class_vp9 = {
800 .class_name = "libvpx encoder",
801 .item_name = av_default_item_name,
803 .version = LIBAVUTIL_VERSION_INT,
806 AVCodec ff_libvpx_vp9_encoder = {
807 .name = "libvpx-vp9",
808 .type = AVMEDIA_TYPE_VIDEO,
809 .id = AV_CODEC_ID_VP9,
810 .priv_data_size = sizeof(VP8Context),
812 .encode2 = vp8_encode,
814 .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS | CODEC_CAP_EXPERIMENTAL,
815 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
816 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP9"),
817 .priv_class = &class_vp9,
818 .defaults = defaults,
820 #endif /* CONFIG_LIBVPX_VP9_ENCODER */