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"
35 #include "libavutil/base64.h"
36 #include "libavutil/common.h"
37 #include "libavutil/intreadwrite.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/opt.h"
42 * Portion of struct vpx_codec_cx_pkt from vpx_encoder.h.
43 * One encoded frame returned from the library.
45 struct FrameListData {
46 void *buf; /**< compressed data buffer */
47 size_t sz; /**< length of compressed data */
50 int64_t pts; /**< time stamp to show frame
51 (in timebase units) */
52 unsigned long duration; /**< duration to show frame
53 (in timebase units) */
54 uint32_t flags; /**< flags for this frame */
56 int have_sse; /**< true if we have pending sse[] */
57 uint64_t frame_number;
58 struct FrameListData *next;
61 typedef struct VP8EncoderContext {
63 struct vpx_codec_ctx encoder;
64 struct vpx_image rawimg;
65 struct vpx_codec_ctx encoder_alpha;
66 struct vpx_image rawimg_alpha;
68 struct vpx_fixed_buf twopass_stats;
69 int deadline; //i.e., RT/GOOD/BEST
71 int have_sse; /**< true if we have pending sse[] */
72 uint64_t frame_number;
73 struct FrameListData *coded_frame_list;
77 * VP8 specific flags, see VP8F_* below.
80 #define VP8F_ERROR_RESILIENT 0x00000001 ///< Enable measures appropriate for streaming over lossy links
81 #define VP8F_AUTO_ALT_REF 0x00000002 ///< Enable automatic alternate reference frame generation
101 /** String mappings for enum vp8e_enc_control_id */
102 static const char *const ctlidstr[] = {
103 [VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY",
104 [VP8E_UPD_REFERENCE] = "VP8E_UPD_REFERENCE",
105 [VP8E_USE_REFERENCE] = "VP8E_USE_REFERENCE",
106 [VP8E_SET_ROI_MAP] = "VP8E_SET_ROI_MAP",
107 [VP8E_SET_ACTIVEMAP] = "VP8E_SET_ACTIVEMAP",
108 [VP8E_SET_SCALEMODE] = "VP8E_SET_SCALEMODE",
109 [VP8E_SET_CPUUSED] = "VP8E_SET_CPUUSED",
110 [VP8E_SET_ENABLEAUTOALTREF] = "VP8E_SET_ENABLEAUTOALTREF",
111 [VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY",
112 [VP8E_SET_SHARPNESS] = "VP8E_SET_SHARPNESS",
113 [VP8E_SET_STATIC_THRESHOLD] = "VP8E_SET_STATIC_THRESHOLD",
114 [VP8E_SET_TOKEN_PARTITIONS] = "VP8E_SET_TOKEN_PARTITIONS",
115 [VP8E_GET_LAST_QUANTIZER] = "VP8E_GET_LAST_QUANTIZER",
116 [VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES",
117 [VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH",
118 [VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE",
119 [VP8E_SET_CQ_LEVEL] = "VP8E_SET_CQ_LEVEL",
120 [VP8E_SET_MAX_INTRA_BITRATE_PCT] = "VP8E_SET_MAX_INTRA_BITRATE_PCT",
121 #if CONFIG_LIBVPX_VP9_ENCODER
122 [VP9E_SET_LOSSLESS] = "VP9E_SET_LOSSLESS",
123 [VP9E_SET_TILE_COLUMNS] = "VP9E_SET_TILE_COLUMNS",
124 [VP9E_SET_TILE_ROWS] = "VP9E_SET_TILE_ROWS",
125 [VP9E_SET_FRAME_PARALLEL_DECODING] = "VP9E_SET_FRAME_PARALLEL_DECODING",
129 static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
131 VP8Context *ctx = avctx->priv_data;
132 const char *error = vpx_codec_error(&ctx->encoder);
133 const char *detail = vpx_codec_error_detail(&ctx->encoder);
135 av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error);
137 av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail);
140 static av_cold void dump_enc_cfg(AVCodecContext *avctx,
141 const struct vpx_codec_enc_cfg *cfg)
144 int level = AV_LOG_DEBUG;
146 av_log(avctx, level, "vpx_codec_enc_cfg\n");
147 av_log(avctx, level, "generic settings\n"
148 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
149 " %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n",
150 width, "g_usage:", cfg->g_usage,
151 width, "g_threads:", cfg->g_threads,
152 width, "g_profile:", cfg->g_profile,
153 width, "g_w:", cfg->g_w,
154 width, "g_h:", cfg->g_h,
155 width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den,
156 width, "g_error_resilient:", cfg->g_error_resilient,
157 width, "g_pass:", cfg->g_pass,
158 width, "g_lag_in_frames:", cfg->g_lag_in_frames);
159 av_log(avctx, level, "rate control settings\n"
160 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
161 " %*s%d\n %*s%p(%"SIZE_SPECIFIER")\n %*s%u\n",
162 width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh,
163 width, "rc_resize_allowed:", cfg->rc_resize_allowed,
164 width, "rc_resize_up_thresh:", cfg->rc_resize_up_thresh,
165 width, "rc_resize_down_thresh:", cfg->rc_resize_down_thresh,
166 width, "rc_end_usage:", cfg->rc_end_usage,
167 width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz,
168 width, "rc_target_bitrate:", cfg->rc_target_bitrate);
169 av_log(avctx, level, "quantizer settings\n"
171 width, "rc_min_quantizer:", cfg->rc_min_quantizer,
172 width, "rc_max_quantizer:", cfg->rc_max_quantizer);
173 av_log(avctx, level, "bitrate tolerance\n"
175 width, "rc_undershoot_pct:", cfg->rc_undershoot_pct,
176 width, "rc_overshoot_pct:", cfg->rc_overshoot_pct);
177 av_log(avctx, level, "decoder buffer model\n"
178 " %*s%u\n %*s%u\n %*s%u\n",
179 width, "rc_buf_sz:", cfg->rc_buf_sz,
180 width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz,
181 width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz);
182 av_log(avctx, level, "2 pass rate control settings\n"
183 " %*s%u\n %*s%u\n %*s%u\n",
184 width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct,
185 width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct,
186 width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct);
187 av_log(avctx, level, "keyframing settings\n"
188 " %*s%d\n %*s%u\n %*s%u\n",
189 width, "kf_mode:", cfg->kf_mode,
190 width, "kf_min_dist:", cfg->kf_min_dist,
191 width, "kf_max_dist:", cfg->kf_max_dist);
192 av_log(avctx, level, "\n");
195 static void coded_frame_add(void *list, struct FrameListData *cx_frame)
197 struct FrameListData **p = list;
202 cx_frame->next = NULL;
205 static av_cold void free_coded_frame(struct FrameListData *cx_frame)
207 av_freep(&cx_frame->buf);
208 if (cx_frame->buf_alpha)
209 av_freep(&cx_frame->buf_alpha);
213 static av_cold void free_frame_list(struct FrameListData *list)
215 struct FrameListData *p = list;
224 static av_cold int codecctl_int(AVCodecContext *avctx,
225 enum vp8e_enc_control_id id, int val)
227 VP8Context *ctx = avctx->priv_data;
232 snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]);
233 av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val);
235 res = vpx_codec_control(&ctx->encoder, id, val);
236 if (res != VPX_CODEC_OK) {
237 snprintf(buf, sizeof(buf), "Failed to set %s codec control",
239 log_encoder_error(avctx, buf);
242 return res == VPX_CODEC_OK ? 0 : AVERROR(EINVAL);
245 static av_cold int vp8_free(AVCodecContext *avctx)
247 VP8Context *ctx = avctx->priv_data;
249 vpx_codec_destroy(&ctx->encoder);
251 vpx_codec_destroy(&ctx->encoder_alpha);
252 av_freep(&ctx->twopass_stats.buf);
253 av_freep(&avctx->coded_frame);
254 av_freep(&avctx->stats_out);
255 free_frame_list(ctx->coded_frame_list);
259 static av_cold int vpx_init(AVCodecContext *avctx,
260 const struct vpx_codec_iface *iface)
262 VP8Context *ctx = avctx->priv_data;
263 struct vpx_codec_enc_cfg enccfg;
264 struct vpx_codec_enc_cfg enccfg_alpha;
265 vpx_codec_flags_t flags = (avctx->flags & CODEC_FLAG_PSNR) ? VPX_CODEC_USE_PSNR : 0;
268 av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
269 av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
271 if (avctx->pix_fmt == AV_PIX_FMT_YUVA420P)
274 if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) {
275 av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n",
276 vpx_codec_err_to_string(res));
277 return AVERROR(EINVAL);
281 if(avctx->rc_max_rate || avctx->rc_buffer_size || avctx->rc_initial_buffer_occupancy) {
282 av_log( avctx, AV_LOG_ERROR, "Rate control parameters set without a bitrate\n");
283 return AVERROR(EINVAL);
286 dump_enc_cfg(avctx, &enccfg);
288 enccfg.g_w = avctx->width;
289 enccfg.g_h = avctx->height;
290 enccfg.g_timebase.num = avctx->time_base.num;
291 enccfg.g_timebase.den = avctx->time_base.den;
292 enccfg.g_threads = avctx->thread_count;
293 enccfg.g_lag_in_frames= ctx->lag_in_frames;
295 if (avctx->flags & CODEC_FLAG_PASS1)
296 enccfg.g_pass = VPX_RC_FIRST_PASS;
297 else if (avctx->flags & CODEC_FLAG_PASS2)
298 enccfg.g_pass = VPX_RC_LAST_PASS;
300 enccfg.g_pass = VPX_RC_ONE_PASS;
302 if (avctx->rc_min_rate == avctx->rc_max_rate &&
303 avctx->rc_min_rate == avctx->bit_rate && avctx->bit_rate)
304 enccfg.rc_end_usage = VPX_CBR;
306 enccfg.rc_end_usage = VPX_CQ;
308 if (avctx->bit_rate) {
309 enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
312 if (enccfg.rc_end_usage == VPX_CQ) {
313 enccfg.rc_target_bitrate = 1000000;
315 avctx->bit_rate = enccfg.rc_target_bitrate * 1000;
316 av_log(avctx, AV_LOG_WARNING,
317 "Neither bitrate nor constrained quality specified, using default bitrate of %dkbit/sec\n",
318 enccfg.rc_target_bitrate);
322 if (avctx->qmin >= 0)
323 enccfg.rc_min_quantizer = avctx->qmin;
324 if (avctx->qmax >= 0)
325 enccfg.rc_max_quantizer = avctx->qmax;
327 if (enccfg.rc_end_usage == VPX_CQ) {
328 if (ctx->crf < enccfg.rc_min_quantizer || ctx->crf > enccfg.rc_max_quantizer) {
329 av_log(avctx, AV_LOG_ERROR,
330 "CQ level must be between minimum and maximum quantizer value (%d-%d)\n",
331 enccfg.rc_min_quantizer, enccfg.rc_max_quantizer);
332 return AVERROR(EINVAL);
336 enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
338 //0-100 (0 => CBR, 100 => VBR)
339 enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
341 enccfg.rc_2pass_vbr_minsection_pct =
342 avctx->rc_min_rate * 100LL / avctx->bit_rate;
343 if (avctx->rc_max_rate)
344 enccfg.rc_2pass_vbr_maxsection_pct =
345 avctx->rc_max_rate * 100LL / avctx->bit_rate;
347 if (avctx->rc_buffer_size)
349 avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
350 if (avctx->rc_initial_buffer_occupancy)
351 enccfg.rc_buf_initial_sz =
352 avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
353 enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
354 enccfg.rc_undershoot_pct = round(avctx->rc_buffer_aggressivity * 100);
356 //_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
357 if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
358 enccfg.kf_min_dist = avctx->keyint_min;
359 if (avctx->gop_size >= 0)
360 enccfg.kf_max_dist = avctx->gop_size;
362 if (enccfg.g_pass == VPX_RC_FIRST_PASS)
363 enccfg.g_lag_in_frames = 0;
364 else if (enccfg.g_pass == VPX_RC_LAST_PASS) {
367 if (!avctx->stats_in) {
368 av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n");
369 return AVERROR_INVALIDDATA;
372 ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;
373 ctx->twopass_stats.buf = av_malloc(ctx->twopass_stats.sz);
374 if (!ctx->twopass_stats.buf) {
375 av_log(avctx, AV_LOG_ERROR,
376 "Stat buffer alloc (%"SIZE_SPECIFIER" bytes) failed\n",
377 ctx->twopass_stats.sz);
378 return AVERROR(ENOMEM);
380 decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,
381 ctx->twopass_stats.sz);
382 if (decode_size < 0) {
383 av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n");
384 return AVERROR_INVALIDDATA;
387 ctx->twopass_stats.sz = decode_size;
388 enccfg.rc_twopass_stats_in = ctx->twopass_stats;
391 /* 0-3: For non-zero values the encoder increasingly optimizes for reduced
392 complexity playback on low powered devices at the expense of encode
394 if (avctx->profile != FF_PROFILE_UNKNOWN)
395 enccfg.g_profile = avctx->profile;
397 enccfg.g_error_resilient = ctx->error_resilient || ctx->flags & VP8F_ERROR_RESILIENT;
399 dump_enc_cfg(avctx, &enccfg);
400 /* Construct Encoder Context */
401 res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, flags);
402 if (res != VPX_CODEC_OK) {
403 log_encoder_error(avctx, "Failed to initialize encoder");
404 return AVERROR(EINVAL);
408 enccfg_alpha = enccfg;
409 res = vpx_codec_enc_init(&ctx->encoder_alpha, iface, &enccfg_alpha, flags);
410 if (res != VPX_CODEC_OK) {
411 log_encoder_error(avctx, "Failed to initialize alpha encoder");
412 return AVERROR(EINVAL);
416 //codec control failures are currently treated only as warnings
417 av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
418 if (ctx->cpu_used != INT_MIN)
419 codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used);
420 if (ctx->flags & VP8F_AUTO_ALT_REF)
421 ctx->auto_alt_ref = 1;
422 if (ctx->auto_alt_ref >= 0)
423 codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
424 if (ctx->arnr_max_frames >= 0)
425 codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);
426 if (ctx->arnr_strength >= 0)
427 codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);
428 if (ctx->arnr_type >= 0)
429 codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);
430 codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
431 if (avctx->codec_id == AV_CODEC_ID_VP8)
432 codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));
433 codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, avctx->mb_threshold);
434 codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf);
435 if (ctx->max_intra_rate >= 0)
436 codecctl_int(avctx, VP8E_SET_MAX_INTRA_BITRATE_PCT, ctx->max_intra_rate);
438 #if CONFIG_LIBVPX_VP9_ENCODER
439 if (avctx->codec_id == AV_CODEC_ID_VP9) {
440 if (ctx->lossless >= 0)
441 codecctl_int(avctx, VP9E_SET_LOSSLESS, ctx->lossless);
442 if (ctx->tile_columns >= 0)
443 codecctl_int(avctx, VP9E_SET_TILE_COLUMNS, ctx->tile_columns);
444 if (ctx->tile_rows >= 0)
445 codecctl_int(avctx, VP9E_SET_TILE_ROWS, ctx->tile_rows);
446 if (ctx->frame_parallel >= 0)
447 codecctl_int(avctx, VP9E_SET_FRAME_PARALLEL_DECODING, ctx->frame_parallel);
451 av_log(avctx, AV_LOG_DEBUG, "Using deadline: %d\n", ctx->deadline);
453 //provide dummy value to initialize wrapper, values will be updated each _encode()
454 vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
458 vpx_img_wrap(&ctx->rawimg_alpha, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
461 avctx->coded_frame = av_frame_alloc();
462 if (!avctx->coded_frame) {
463 av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
465 return AVERROR(ENOMEM);
470 static inline void cx_pktcpy(struct FrameListData *dst,
471 const struct vpx_codec_cx_pkt *src,
472 const struct vpx_codec_cx_pkt *src_alpha,
475 dst->pts = src->data.frame.pts;
476 dst->duration = src->data.frame.duration;
477 dst->flags = src->data.frame.flags;
478 dst->sz = src->data.frame.sz;
479 dst->buf = src->data.frame.buf;
481 /* For alt-ref frame, don't store PSNR or increment frame_number */
482 if (!(dst->flags & VPX_FRAME_IS_INVISIBLE)) {
483 dst->frame_number = ++ctx->frame_number;
484 dst->have_sse = ctx->have_sse;
486 /* associate last-seen SSE to the frame. */
487 /* Transfers ownership from ctx to dst. */
488 /* WARNING! This makes the assumption that PSNR_PKT comes
489 just before the frame it refers to! */
490 memcpy(dst->sse, ctx->sse, sizeof(dst->sse));
494 dst->frame_number = -1; /* sanity marker */
497 dst->buf_alpha = src_alpha->data.frame.buf;
498 dst->sz_alpha = src_alpha->data.frame.sz;
501 dst->buf_alpha = NULL;
507 * Store coded frame information in format suitable for return from encode2().
509 * Write information from @a cx_frame to @a pkt
510 * @return packet data size on success
511 * @return a negative AVERROR on error
513 static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
514 AVPacket *pkt, AVFrame *coded_frame)
516 int ret = ff_alloc_packet2(avctx, pkt, cx_frame->sz);
519 memcpy(pkt->data, cx_frame->buf, pkt->size);
520 pkt->pts = pkt->dts = cx_frame->pts;
521 coded_frame->pts = cx_frame->pts;
522 coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY);
524 if (coded_frame->key_frame) {
525 coded_frame->pict_type = AV_PICTURE_TYPE_I;
526 pkt->flags |= AV_PKT_FLAG_KEY;
528 coded_frame->pict_type = AV_PICTURE_TYPE_P;
530 if (cx_frame->have_sse) {
532 /* Beware of the Y/U/V/all order! */
533 coded_frame->error[0] = cx_frame->sse[1];
534 coded_frame->error[1] = cx_frame->sse[2];
535 coded_frame->error[2] = cx_frame->sse[3];
536 coded_frame->error[3] = 0; // alpha
537 for (i = 0; i < 4; ++i) {
538 avctx->error[i] += coded_frame->error[i];
540 cx_frame->have_sse = 0;
542 if (cx_frame->sz_alpha > 0) {
543 side_data = av_packet_new_side_data(pkt,
544 AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
545 cx_frame->sz_alpha + 8);
546 if(side_data == NULL) {
549 return AVERROR(ENOMEM);
551 AV_WB64(side_data, 1);
552 memcpy(side_data + 8, cx_frame->buf_alpha, cx_frame->sz_alpha);
561 * Queue multiple output frames from the encoder, returning the front-most.
562 * In cases where vpx_codec_get_cx_data() returns more than 1 frame append
563 * the frame queue. Return the head frame if available.
564 * @return Stored frame size
565 * @return AVERROR(EINVAL) on output size error
566 * @return AVERROR(ENOMEM) on coded frame queue data allocation error
568 static int queue_frames(AVCodecContext *avctx, AVPacket *pkt_out,
569 AVFrame *coded_frame)
571 VP8Context *ctx = avctx->priv_data;
572 const struct vpx_codec_cx_pkt *pkt;
573 const struct vpx_codec_cx_pkt *pkt_alpha = NULL;
574 const void *iter = NULL;
575 const void *iter_alpha = NULL;
578 if (ctx->coded_frame_list) {
579 struct FrameListData *cx_frame = ctx->coded_frame_list;
580 /* return the leading frame if we've already begun queueing */
581 size = storeframe(avctx, cx_frame, pkt_out, coded_frame);
584 ctx->coded_frame_list = cx_frame->next;
585 free_coded_frame(cx_frame);
588 /* consume all available output from the encoder before returning. buffers
589 are only good through the next vpx_codec call */
590 while ((pkt = vpx_codec_get_cx_data(&ctx->encoder, &iter)) &&
592 (ctx->is_alpha && (pkt_alpha = vpx_codec_get_cx_data(&ctx->encoder_alpha, &iter_alpha))))) {
594 case VPX_CODEC_CX_FRAME_PKT:
596 struct FrameListData cx_frame;
598 /* avoid storing the frame when the list is empty and we haven't yet
599 provided a frame for output */
600 av_assert0(!ctx->coded_frame_list);
601 cx_pktcpy(&cx_frame, pkt, pkt_alpha, ctx);
602 size = storeframe(avctx, &cx_frame, pkt_out, coded_frame);
606 struct FrameListData *cx_frame =
607 av_malloc(sizeof(struct FrameListData));
610 av_log(avctx, AV_LOG_ERROR,
611 "Frame queue element alloc failed\n");
612 return AVERROR(ENOMEM);
614 cx_pktcpy(cx_frame, pkt, pkt_alpha, ctx);
615 cx_frame->buf = av_malloc(cx_frame->sz);
617 if (!cx_frame->buf) {
618 av_log(avctx, AV_LOG_ERROR,
619 "Data buffer alloc (%"SIZE_SPECIFIER" bytes) failed\n",
622 return AVERROR(ENOMEM);
624 memcpy(cx_frame->buf, pkt->data.frame.buf, pkt->data.frame.sz);
626 cx_frame->buf_alpha = av_malloc(cx_frame->sz_alpha);
627 if (!cx_frame->buf_alpha) {
628 av_log(avctx, AV_LOG_ERROR,
629 "Data buffer alloc (%"SIZE_SPECIFIER" bytes) failed\n",
632 return AVERROR(ENOMEM);
634 memcpy(cx_frame->buf_alpha, pkt_alpha->data.frame.buf, pkt_alpha->data.frame.sz);
636 coded_frame_add(&ctx->coded_frame_list, cx_frame);
639 case VPX_CODEC_STATS_PKT: {
640 struct vpx_fixed_buf *stats = &ctx->twopass_stats;
642 if ((err = av_reallocp(&stats->buf,
644 pkt->data.twopass_stats.sz)) < 0) {
646 av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n");
649 memcpy((uint8_t*)stats->buf + stats->sz,
650 pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz);
651 stats->sz += pkt->data.twopass_stats.sz;
654 case VPX_CODEC_PSNR_PKT:
655 av_assert0(!ctx->have_sse);
656 ctx->sse[0] = pkt->data.psnr.sse[0];
657 ctx->sse[1] = pkt->data.psnr.sse[1];
658 ctx->sse[2] = pkt->data.psnr.sse[2];
659 ctx->sse[3] = pkt->data.psnr.sse[3];
662 case VPX_CODEC_CUSTOM_PKT:
663 //ignore unsupported/unrecognized packet types
671 static int vp8_encode(AVCodecContext *avctx, AVPacket *pkt,
672 const AVFrame *frame, int *got_packet)
674 VP8Context *ctx = avctx->priv_data;
675 struct vpx_image *rawimg = NULL;
676 struct vpx_image *rawimg_alpha = NULL;
677 int64_t timestamp = 0;
679 vpx_enc_frame_flags_t flags = 0;
682 rawimg = &ctx->rawimg;
683 rawimg->planes[VPX_PLANE_Y] = frame->data[0];
684 rawimg->planes[VPX_PLANE_U] = frame->data[1];
685 rawimg->planes[VPX_PLANE_V] = frame->data[2];
686 rawimg->stride[VPX_PLANE_Y] = frame->linesize[0];
687 rawimg->stride[VPX_PLANE_U] = frame->linesize[1];
688 rawimg->stride[VPX_PLANE_V] = frame->linesize[2];
690 uint8_t *u_plane, *v_plane;
691 rawimg_alpha = &ctx->rawimg_alpha;
692 rawimg_alpha->planes[VPX_PLANE_Y] = frame->data[3];
693 u_plane = av_malloc(frame->linesize[1] * frame->height);
694 memset(u_plane, 0x80, frame->linesize[1] * frame->height);
695 rawimg_alpha->planes[VPX_PLANE_U] = u_plane;
696 v_plane = av_malloc(frame->linesize[2] * frame->height);
697 memset(v_plane, 0x80, frame->linesize[2] * frame->height);
698 rawimg_alpha->planes[VPX_PLANE_V] = v_plane;
699 rawimg_alpha->stride[VPX_PLANE_Y] = frame->linesize[0];
700 rawimg_alpha->stride[VPX_PLANE_U] = frame->linesize[1];
701 rawimg_alpha->stride[VPX_PLANE_V] = frame->linesize[2];
703 timestamp = frame->pts;
704 if (frame->pict_type == AV_PICTURE_TYPE_I)
705 flags |= VPX_EFLAG_FORCE_KF;
708 res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
709 avctx->ticks_per_frame, flags, ctx->deadline);
710 if (res != VPX_CODEC_OK) {
711 log_encoder_error(avctx, "Error encoding frame");
712 return AVERROR_INVALIDDATA;
716 res = vpx_codec_encode(&ctx->encoder_alpha, rawimg_alpha, timestamp,
717 avctx->ticks_per_frame, flags, ctx->deadline);
718 if (res != VPX_CODEC_OK) {
719 log_encoder_error(avctx, "Error encoding alpha frame");
720 return AVERROR_INVALIDDATA;
724 coded_size = queue_frames(avctx, pkt, avctx->coded_frame);
726 if (!frame && avctx->flags & CODEC_FLAG_PASS1) {
727 unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
729 avctx->stats_out = av_malloc(b64_size);
730 if (!avctx->stats_out) {
731 av_log(avctx, AV_LOG_ERROR, "Stat buffer alloc (%d bytes) failed\n",
733 return AVERROR(ENOMEM);
735 av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
736 ctx->twopass_stats.sz);
740 av_free(rawimg_alpha->planes[VPX_PLANE_U]);
741 av_free(rawimg_alpha->planes[VPX_PLANE_V]);
744 *got_packet = !!coded_size;
748 #define OFFSET(x) offsetof(VP8Context, x)
749 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
751 #ifndef VPX_ERROR_RESILIENT_DEFAULT
752 #define VPX_ERROR_RESILIENT_DEFAULT 1
753 #define VPX_ERROR_RESILIENT_PARTITIONS 2
756 #define COMMON_OPTIONS \
757 { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {.i64 = INT_MIN}, INT_MIN, INT_MAX, VE}, \
758 { "auto-alt-ref", "Enable use of alternate reference " \
759 "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE}, \
760 { "lag-in-frames", "Number of frames to look ahead for " \
761 "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE}, \
762 { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE}, \
763 { "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE}, \
764 { "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE, "arnr_type"}, \
765 { "backward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1}, 0, 0, VE, "arnr_type" }, \
766 { "forward", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2}, 0, 0, VE, "arnr_type" }, \
767 { "centered", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 3}, 0, 0, VE, "arnr_type" }, \
768 { "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {.i64 = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"}, \
769 { "best", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"}, \
770 { "good", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"}, \
771 { "realtime", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VPX_DL_REALTIME}, 0, 0, VE, "quality"}, \
772 { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, VE, "er"}, \
773 { "max-intra-rate", "Maximum I-frame bitrate (pct) 0=unlimited", OFFSET(max_intra_rate), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE}, \
774 { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"}, \
775 { "partitions", "The frame partitions are independently decodable " \
776 "by the bool decoder, meaning that partitions can be decoded even " \
777 "though earlier partitions have been lost. Note that intra predicition" \
778 " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {.i64 = VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"}, \
779 { "crf", "Select the quality for constant quality mode", offsetof(VP8Context, crf), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, VE }, \
781 #define LEGACY_OPTIONS \
782 {"speed", "", offsetof(VP8Context, cpu_used), AV_OPT_TYPE_INT, {.i64 = 1}, -16, 16, VE}, \
783 {"quality", "", offsetof(VP8Context, deadline), AV_OPT_TYPE_INT, {.i64 = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"}, \
784 {"vp8flags", "", offsetof(VP8Context, flags), FF_OPT_TYPE_FLAGS, {.i64 = 0}, 0, UINT_MAX, VE, "flags"}, \
785 {"error_resilient", "enable error resilience", 0, FF_OPT_TYPE_CONST, {.dbl = VP8F_ERROR_RESILIENT}, INT_MIN, INT_MAX, VE, "flags"}, \
786 {"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"}, \
787 {"arnr_max_frames", "altref noise reduction max frame count", offsetof(VP8Context, arnr_max_frames), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 15, VE}, \
788 {"arnr_strength", "altref noise reduction filter strength", offsetof(VP8Context, arnr_strength), AV_OPT_TYPE_INT, {.i64 = 3}, 0, 6, VE}, \
789 {"arnr_type", "altref noise reduction filter type", offsetof(VP8Context, arnr_type), AV_OPT_TYPE_INT, {.i64 = 3}, 1, 3, VE}, \
790 {"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}, \
792 #if CONFIG_LIBVPX_VP8_ENCODER
793 static const AVOption vp8_options[] = {
800 #if CONFIG_LIBVPX_VP9_ENCODER
801 static const AVOption vp9_options[] = {
803 { "lossless", "Lossless mode", OFFSET(lossless), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE},
804 { "tile-columns", "Number of tile columns to use, log2", OFFSET(tile_columns), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 6, VE},
805 { "tile-rows", "Number of tile rows to use, log2", OFFSET(tile_rows), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 2, VE},
806 { "frame-parallel", "Enable frame parallel decodability features", OFFSET(frame_parallel), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE},
812 #undef COMMON_OPTIONS
813 #undef LEGACY_OPTIONS
815 static const AVCodecDefault defaults[] = {
819 { "keyint_min", "-1" },
823 #if CONFIG_LIBVPX_VP8_ENCODER
824 static av_cold int vp8_init(AVCodecContext *avctx)
826 return vpx_init(avctx, &vpx_codec_vp8_cx_algo);
829 static const AVClass class_vp8 = {
830 .class_name = "libvpx-vp8 encoder",
831 .item_name = av_default_item_name,
832 .option = vp8_options,
833 .version = LIBAVUTIL_VERSION_INT,
836 AVCodec ff_libvpx_vp8_encoder = {
838 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
839 .type = AVMEDIA_TYPE_VIDEO,
840 .id = AV_CODEC_ID_VP8,
841 .priv_data_size = sizeof(VP8Context),
843 .encode2 = vp8_encode,
845 .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
846 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_NONE },
847 .priv_class = &class_vp8,
848 .defaults = defaults,
850 #endif /* CONFIG_LIBVPX_VP8_ENCODER */
852 #if CONFIG_LIBVPX_VP9_ENCODER
853 static av_cold int vp9_init(AVCodecContext *avctx)
855 return vpx_init(avctx, &vpx_codec_vp9_cx_algo);
858 static const AVClass class_vp9 = {
859 .class_name = "libvpx-vp9 encoder",
860 .item_name = av_default_item_name,
861 .option = vp9_options,
862 .version = LIBAVUTIL_VERSION_INT,
865 AVCodec ff_libvpx_vp9_encoder = {
866 .name = "libvpx-vp9",
867 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP9"),
868 .type = AVMEDIA_TYPE_VIDEO,
869 .id = AV_CODEC_ID_VP9,
870 .priv_data_size = sizeof(VP8Context),
872 .encode2 = vp8_encode,
874 .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
875 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
876 .priv_class = &class_vp9,
877 .defaults = defaults,
878 .init_static_data = ff_vp9_init_static,
880 #endif /* CONFIG_LIBVPX_VP9_ENCODER */