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 * AV1 encoder support via libaom
26 #define AOM_DISABLE_CTRL_TYPECHECKS 1
27 #include <aom/aom_encoder.h>
28 #include <aom/aomcx.h>
30 #include "libavutil/avassert.h"
31 #include "libavutil/base64.h"
32 #include "libavutil/common.h"
33 #include "libavutil/mathematics.h"
34 #include "libavutil/opt.h"
35 #include "libavutil/pixdesc.h"
42 * Portion of struct aom_codec_cx_pkt from aom_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 */
48 int64_t pts; /**< time stamp to show frame
49 (in timebase units) */
50 unsigned long duration; /**< duration to show frame
51 (in timebase units) */
52 uint32_t flags; /**< flags for this frame */
53 struct FrameListData *next;
56 typedef struct AOMEncoderContext {
58 struct aom_codec_ctx encoder;
59 struct aom_image rawimg;
60 struct aom_fixed_buf twopass_stats;
61 struct FrameListData *coded_frame_list;
69 int noise_sensitivity;
72 static const char *const ctlidstr[] = {
73 [AOME_SET_CPUUSED] = "AOME_SET_CPUUSED",
74 [AOME_SET_CQ_LEVEL] = "AOME_SET_CQ_LEVEL",
75 [AOME_SET_ENABLEAUTOALTREF] = "AOME_SET_ENABLEAUTOALTREF",
76 [AOME_SET_STATIC_THRESHOLD] = "AOME_SET_STATIC_THRESHOLD",
77 [AV1E_SET_COLOR_RANGE] = "AV1E_SET_COLOR_RANGE",
78 [AV1E_SET_COLOR_PRIMARIES] = "AV1E_SET_COLOR_PRIMARIES",
79 [AV1E_SET_MATRIX_COEFFICIENTS] = "AV1E_SET_MATRIX_COEFFICIENTS",
80 [AV1E_SET_TRANSFER_CHARACTERISTICS] = "AV1E_SET_TRANSFER_CHARACTERISTICS",
83 static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
85 AOMContext *ctx = avctx->priv_data;
86 const char *error = aom_codec_error(&ctx->encoder);
87 const char *detail = aom_codec_error_detail(&ctx->encoder);
89 av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error);
91 av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail);
94 static av_cold void dump_enc_cfg(AVCodecContext *avctx,
95 const struct aom_codec_enc_cfg *cfg)
98 int level = AV_LOG_DEBUG;
100 av_log(avctx, level, "aom_codec_enc_cfg\n");
101 av_log(avctx, level, "generic settings\n"
102 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
104 " %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n",
105 width, "g_usage:", cfg->g_usage,
106 width, "g_threads:", cfg->g_threads,
107 width, "g_profile:", cfg->g_profile,
108 width, "g_w:", cfg->g_w,
109 width, "g_h:", cfg->g_h,
110 width, "g_bit_depth:", cfg->g_bit_depth,
111 width, "g_input_bit_depth:", cfg->g_input_bit_depth,
112 width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den,
113 width, "g_error_resilient:", cfg->g_error_resilient,
114 width, "g_pass:", cfg->g_pass,
115 width, "g_lag_in_frames:", cfg->g_lag_in_frames);
116 av_log(avctx, level, "rate control settings\n"
117 " %*s%u\n %*s%d\n %*s%p(%"SIZE_SPECIFIER")\n %*s%u\n",
118 width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh,
119 width, "rc_end_usage:", cfg->rc_end_usage,
120 width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz,
121 width, "rc_target_bitrate:", cfg->rc_target_bitrate);
122 av_log(avctx, level, "quantizer settings\n"
124 width, "rc_min_quantizer:", cfg->rc_min_quantizer,
125 width, "rc_max_quantizer:", cfg->rc_max_quantizer);
126 av_log(avctx, level, "bitrate tolerance\n"
128 width, "rc_undershoot_pct:", cfg->rc_undershoot_pct,
129 width, "rc_overshoot_pct:", cfg->rc_overshoot_pct);
130 av_log(avctx, level, "decoder buffer model\n"
131 " %*s%u\n %*s%u\n %*s%u\n",
132 width, "rc_buf_sz:", cfg->rc_buf_sz,
133 width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz,
134 width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz);
135 av_log(avctx, level, "2 pass rate control settings\n"
136 " %*s%u\n %*s%u\n %*s%u\n",
137 width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct,
138 width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct,
139 width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct);
140 av_log(avctx, level, "keyframing settings\n"
141 " %*s%d\n %*s%u\n %*s%u\n",
142 width, "kf_mode:", cfg->kf_mode,
143 width, "kf_min_dist:", cfg->kf_min_dist,
144 width, "kf_max_dist:", cfg->kf_max_dist);
145 av_log(avctx, level, "\n");
148 static void coded_frame_add(void *list, struct FrameListData *cx_frame)
150 struct FrameListData **p = list;
155 cx_frame->next = NULL;
158 static av_cold void free_coded_frame(struct FrameListData *cx_frame)
160 av_freep(&cx_frame->buf);
164 static av_cold void free_frame_list(struct FrameListData *list)
166 struct FrameListData *p = list;
175 static av_cold int codecctl_int(AVCodecContext *avctx,
176 enum aome_enc_control_id id, int val)
178 AOMContext *ctx = avctx->priv_data;
183 snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]);
184 av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val);
186 res = aom_codec_control(&ctx->encoder, id, val);
187 if (res != AOM_CODEC_OK) {
188 snprintf(buf, sizeof(buf), "Failed to set %s codec control",
190 log_encoder_error(avctx, buf);
191 return AVERROR(EINVAL);
197 static av_cold int aom_free(AVCodecContext *avctx)
199 AOMContext *ctx = avctx->priv_data;
201 aom_codec_destroy(&ctx->encoder);
202 av_freep(&ctx->twopass_stats.buf);
203 av_freep(&avctx->stats_out);
204 free_frame_list(ctx->coded_frame_list);
208 static int set_pix_fmt(AVCodecContext *avctx, aom_codec_caps_t codec_caps,
209 struct aom_codec_enc_cfg *enccfg, aom_codec_flags_t *flags,
210 aom_img_fmt_t *img_fmt)
212 AOMContext av_unused *ctx = avctx->priv_data;
213 enccfg->g_bit_depth = enccfg->g_input_bit_depth = 8;
214 switch (avctx->pix_fmt) {
215 case AV_PIX_FMT_YUV420P:
216 enccfg->g_profile = FF_PROFILE_AV1_MAIN;
217 *img_fmt = AOM_IMG_FMT_I420;
219 case AV_PIX_FMT_YUV422P:
220 enccfg->g_profile = FF_PROFILE_AV1_PROFESSIONAL;
221 *img_fmt = AOM_IMG_FMT_I422;
223 case AV_PIX_FMT_GBRP:
224 case AV_PIX_FMT_YUV444P:
225 enccfg->g_profile = FF_PROFILE_AV1_HIGH;
226 *img_fmt = AOM_IMG_FMT_I444;
228 case AV_PIX_FMT_YUV420P10:
229 case AV_PIX_FMT_YUV420P12:
230 if (codec_caps & AOM_CODEC_CAP_HIGHBITDEPTH) {
231 enccfg->g_bit_depth = enccfg->g_input_bit_depth =
232 avctx->pix_fmt == AV_PIX_FMT_YUV420P10 ? 10 : 12;
234 enccfg->g_bit_depth == 10 ? FF_PROFILE_AV1_MAIN : FF_PROFILE_AV1_PROFESSIONAL;
235 *img_fmt = AOM_IMG_FMT_I42016;
236 *flags |= AOM_CODEC_USE_HIGHBITDEPTH;
240 case AV_PIX_FMT_YUV422P10:
241 case AV_PIX_FMT_YUV422P12:
242 if (codec_caps & AOM_CODEC_CAP_HIGHBITDEPTH) {
243 enccfg->g_bit_depth = enccfg->g_input_bit_depth =
244 avctx->pix_fmt == AV_PIX_FMT_YUV422P10 ? 10 : 12;
245 enccfg->g_profile = FF_PROFILE_AV1_PROFESSIONAL;
246 *img_fmt = AOM_IMG_FMT_I42216;
247 *flags |= AOM_CODEC_USE_HIGHBITDEPTH;
251 case AV_PIX_FMT_GBRP10:
252 case AV_PIX_FMT_GBRP12:
253 case AV_PIX_FMT_YUV444P10:
254 case AV_PIX_FMT_YUV444P12:
255 if (codec_caps & AOM_CODEC_CAP_HIGHBITDEPTH) {
256 enccfg->g_bit_depth = enccfg->g_input_bit_depth =
257 avctx->pix_fmt == AV_PIX_FMT_YUV444P10 ||
258 avctx->pix_fmt == AV_PIX_FMT_GBRP10 ? 10 : 12;
260 enccfg->g_bit_depth == 10 ? FF_PROFILE_AV1_HIGH : FF_PROFILE_AV1_PROFESSIONAL;
261 *img_fmt = AOM_IMG_FMT_I44416;
262 *flags |= AOM_CODEC_USE_HIGHBITDEPTH;
269 av_log(avctx, AV_LOG_ERROR, "Unsupported pixel format.\n");
270 return AVERROR_INVALIDDATA;
273 static void set_color_range(AVCodecContext *avctx)
275 enum aom_color_range aom_cr;
276 switch (avctx->color_range) {
277 case AVCOL_RANGE_UNSPECIFIED:
278 case AVCOL_RANGE_MPEG: aom_cr = AOM_CR_STUDIO_RANGE; break;
279 case AVCOL_RANGE_JPEG: aom_cr = AOM_CR_FULL_RANGE; break;
281 av_log(avctx, AV_LOG_WARNING, "Unsupported color range (%d)\n",
286 codecctl_int(avctx, AV1E_SET_COLOR_RANGE, aom_cr);
289 static av_cold int aom_init(AVCodecContext *avctx,
290 const struct aom_codec_iface *iface)
292 AOMContext *ctx = avctx->priv_data;
293 struct aom_codec_enc_cfg enccfg = { 0 };
294 aom_codec_flags_t flags = 0;
295 AVCPBProperties *cpb_props;
297 aom_img_fmt_t img_fmt;
298 aom_codec_caps_t codec_caps = aom_codec_get_caps(iface);
300 av_log(avctx, AV_LOG_INFO, "%s\n", aom_codec_version_str());
301 av_log(avctx, AV_LOG_VERBOSE, "%s\n", aom_codec_build_config());
303 if ((res = aom_codec_enc_config_default(iface, &enccfg, 0)) != AOM_CODEC_OK) {
304 av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n",
305 aom_codec_err_to_string(res));
306 return AVERROR(EINVAL);
309 if (set_pix_fmt(avctx, codec_caps, &enccfg, &flags, &img_fmt))
310 return AVERROR(EINVAL);
313 if(avctx->rc_max_rate || avctx->rc_buffer_size || avctx->rc_initial_buffer_occupancy) {
314 av_log( avctx, AV_LOG_ERROR, "Rate control parameters set without a bitrate\n");
315 return AVERROR(EINVAL);
318 dump_enc_cfg(avctx, &enccfg);
320 enccfg.g_w = avctx->width;
321 enccfg.g_h = avctx->height;
322 enccfg.g_timebase.num = avctx->time_base.num;
323 enccfg.g_timebase.den = avctx->time_base.den;
324 enccfg.g_threads = avctx->thread_count;
326 if (ctx->lag_in_frames >= 0)
327 enccfg.g_lag_in_frames = ctx->lag_in_frames;
329 if (avctx->flags & AV_CODEC_FLAG_PASS1)
330 enccfg.g_pass = AOM_RC_FIRST_PASS;
331 else if (avctx->flags & AV_CODEC_FLAG_PASS2)
332 enccfg.g_pass = AOM_RC_LAST_PASS;
334 enccfg.g_pass = AOM_RC_ONE_PASS;
336 if (avctx->rc_min_rate == avctx->rc_max_rate &&
337 avctx->rc_min_rate == avctx->bit_rate && avctx->bit_rate) {
338 enccfg.rc_end_usage = AOM_CBR;
339 } else if (ctx->crf >= 0) {
340 enccfg.rc_end_usage = AOM_CQ;
341 if (!avctx->bit_rate)
342 enccfg.rc_end_usage = AOM_Q;
345 if (avctx->bit_rate) {
346 enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
348 } else if (enccfg.rc_end_usage != AOM_Q) {
349 if (enccfg.rc_end_usage == AOM_CQ) {
350 enccfg.rc_target_bitrate = 1000000;
352 avctx->bit_rate = enccfg.rc_target_bitrate * 1000;
353 av_log(avctx, AV_LOG_WARNING,
354 "Neither bitrate nor constrained quality specified, using default bitrate of %dkbit/sec\n",
355 enccfg.rc_target_bitrate);
359 if (avctx->qmin >= 0)
360 enccfg.rc_min_quantizer = avctx->qmin;
361 if (avctx->qmax >= 0)
362 enccfg.rc_max_quantizer = avctx->qmax;
364 if (enccfg.rc_end_usage == AOM_CQ || enccfg.rc_end_usage == AOM_Q) {
365 if (ctx->crf < enccfg.rc_min_quantizer || ctx->crf > enccfg.rc_max_quantizer) {
366 av_log(avctx, AV_LOG_ERROR,
367 "CQ level %d must be between minimum and maximum quantizer value (%d-%d)\n",
368 ctx->crf, enccfg.rc_min_quantizer, enccfg.rc_max_quantizer);
369 return AVERROR(EINVAL);
373 enccfg.rc_dropframe_thresh = ctx->drop_threshold;
375 // 0-100 (0 => CBR, 100 => VBR)
376 enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
378 enccfg.rc_2pass_vbr_minsection_pct =
379 avctx->rc_min_rate * 100LL / avctx->bit_rate;
380 if (avctx->rc_max_rate)
381 enccfg.rc_2pass_vbr_maxsection_pct =
382 avctx->rc_max_rate * 100LL / avctx->bit_rate;
384 if (avctx->rc_buffer_size)
386 avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
387 if (avctx->rc_initial_buffer_occupancy)
388 enccfg.rc_buf_initial_sz =
389 avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
390 enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
392 // _enc_init() will balk if kf_min_dist differs from max w/AOM_KF_AUTO
393 if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
394 enccfg.kf_min_dist = avctx->keyint_min;
395 if (avctx->gop_size >= 0)
396 enccfg.kf_max_dist = avctx->gop_size;
398 if (enccfg.g_pass == AOM_RC_FIRST_PASS)
399 enccfg.g_lag_in_frames = 0;
400 else if (enccfg.g_pass == AOM_RC_LAST_PASS) {
401 int decode_size, ret;
403 if (!avctx->stats_in) {
404 av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n");
405 return AVERROR_INVALIDDATA;
408 ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;
409 ret = av_reallocp(&ctx->twopass_stats.buf, ctx->twopass_stats.sz);
411 av_log(avctx, AV_LOG_ERROR,
412 "Stat buffer alloc (%"SIZE_SPECIFIER" bytes) failed\n",
413 ctx->twopass_stats.sz);
414 ctx->twopass_stats.sz = 0;
417 decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,
418 ctx->twopass_stats.sz);
419 if (decode_size < 0) {
420 av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n");
421 return AVERROR_INVALIDDATA;
424 ctx->twopass_stats.sz = decode_size;
425 enccfg.rc_twopass_stats_in = ctx->twopass_stats;
428 /* 0-3: For non-zero values the encoder increasingly optimizes for reduced
429 * complexity playback on low powered devices at the expense of encode
431 if (avctx->profile != FF_PROFILE_UNKNOWN)
432 enccfg.g_profile = avctx->profile;
434 enccfg.g_error_resilient = ctx->error_resilient;
436 dump_enc_cfg(avctx, &enccfg);
437 /* Construct Encoder Context */
438 res = aom_codec_enc_init(&ctx->encoder, iface, &enccfg, flags);
439 if (res != AOM_CODEC_OK) {
440 log_encoder_error(avctx, "Failed to initialize encoder");
441 return AVERROR(EINVAL);
444 // codec control failures are currently treated only as warnings
445 av_log(avctx, AV_LOG_DEBUG, "aom_codec_control\n");
446 codecctl_int(avctx, AOME_SET_CPUUSED, ctx->cpu_used);
447 if (ctx->auto_alt_ref >= 0)
448 codecctl_int(avctx, AOME_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
450 codecctl_int(avctx, AOME_SET_STATIC_THRESHOLD, ctx->static_thresh);
452 codecctl_int(avctx, AOME_SET_CQ_LEVEL, ctx->crf);
454 codecctl_int(avctx, AV1E_SET_COLOR_PRIMARIES, avctx->color_primaries);
455 codecctl_int(avctx, AV1E_SET_MATRIX_COEFFICIENTS, avctx->colorspace);
456 codecctl_int(avctx, AV1E_SET_TRANSFER_CHARACTERISTICS, avctx->color_trc);
457 set_color_range(avctx);
459 // provide dummy value to initialize wrapper, values will be updated each _encode()
460 aom_img_wrap(&ctx->rawimg, img_fmt, avctx->width, avctx->height, 1,
463 if (codec_caps & AOM_CODEC_CAP_HIGHBITDEPTH)
464 ctx->rawimg.bit_depth = enccfg.g_bit_depth;
466 cpb_props = ff_add_cpb_side_data(avctx);
468 return AVERROR(ENOMEM);
470 if (enccfg.rc_end_usage == AOM_CBR ||
471 enccfg.g_pass != AOM_RC_ONE_PASS) {
472 cpb_props->max_bitrate = avctx->rc_max_rate;
473 cpb_props->min_bitrate = avctx->rc_min_rate;
474 cpb_props->avg_bitrate = avctx->bit_rate;
476 cpb_props->buffer_size = avctx->rc_buffer_size;
481 static inline void cx_pktcpy(struct FrameListData *dst,
482 const struct aom_codec_cx_pkt *src)
484 dst->pts = src->data.frame.pts;
485 dst->duration = src->data.frame.duration;
486 dst->flags = src->data.frame.flags;
487 dst->sz = src->data.frame.sz;
488 dst->buf = src->data.frame.buf;
492 * Store coded frame information in format suitable for return from encode2().
494 * Write information from @a cx_frame to @a pkt
495 * @return packet data size on success
496 * @return a negative AVERROR on error
498 static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
501 int ret = ff_alloc_packet2(avctx, pkt, cx_frame->sz, 0);
503 av_log(avctx, AV_LOG_ERROR,
504 "Error getting output packet of size %"SIZE_SPECIFIER".\n", cx_frame->sz);
507 memcpy(pkt->data, cx_frame->buf, pkt->size);
508 pkt->pts = pkt->dts = cx_frame->pts;
510 if (!!(cx_frame->flags & AOM_FRAME_IS_KEY))
511 pkt->flags |= AV_PKT_FLAG_KEY;
516 * Queue multiple output frames from the encoder, returning the front-most.
517 * In cases where aom_codec_get_cx_data() returns more than 1 frame append
518 * the frame queue. Return the head frame if available.
519 * @return Stored frame size
520 * @return AVERROR(EINVAL) on output size error
521 * @return AVERROR(ENOMEM) on coded frame queue data allocation error
523 static int queue_frames(AVCodecContext *avctx, AVPacket *pkt_out)
525 AOMContext *ctx = avctx->priv_data;
526 const struct aom_codec_cx_pkt *pkt;
527 const void *iter = NULL;
530 if (ctx->coded_frame_list) {
531 struct FrameListData *cx_frame = ctx->coded_frame_list;
532 /* return the leading frame if we've already begun queueing */
533 size = storeframe(avctx, cx_frame, pkt_out);
536 ctx->coded_frame_list = cx_frame->next;
537 free_coded_frame(cx_frame);
540 /* consume all available output from the encoder before returning. buffers
541 * are only good through the next aom_codec call */
542 while ((pkt = aom_codec_get_cx_data(&ctx->encoder, &iter))) {
544 case AOM_CODEC_CX_FRAME_PKT:
546 struct FrameListData cx_frame;
548 /* avoid storing the frame when the list is empty and we haven't yet
549 * provided a frame for output */
550 av_assert0(!ctx->coded_frame_list);
551 cx_pktcpy(&cx_frame, pkt);
552 size = storeframe(avctx, &cx_frame, pkt_out);
556 struct FrameListData *cx_frame =
557 av_malloc(sizeof(struct FrameListData));
560 av_log(avctx, AV_LOG_ERROR,
561 "Frame queue element alloc failed\n");
562 return AVERROR(ENOMEM);
564 cx_pktcpy(cx_frame, pkt);
565 cx_frame->buf = av_malloc(cx_frame->sz);
567 if (!cx_frame->buf) {
568 av_log(avctx, AV_LOG_ERROR,
569 "Data buffer alloc (%"SIZE_SPECIFIER" bytes) failed\n",
572 return AVERROR(ENOMEM);
574 memcpy(cx_frame->buf, pkt->data.frame.buf, pkt->data.frame.sz);
575 coded_frame_add(&ctx->coded_frame_list, cx_frame);
578 case AOM_CODEC_STATS_PKT:
580 struct aom_fixed_buf *stats = &ctx->twopass_stats;
582 if ((err = av_reallocp(&stats->buf,
584 pkt->data.twopass_stats.sz)) < 0) {
586 av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n");
589 memcpy((uint8_t *)stats->buf + stats->sz,
590 pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz);
591 stats->sz += pkt->data.twopass_stats.sz;
594 case AOM_CODEC_PSNR_PKT: // FIXME add support for AV_CODEC_FLAG_PSNR
595 case AOM_CODEC_CUSTOM_PKT:
596 // ignore unsupported/unrecognized packet types
604 static int aom_encode(AVCodecContext *avctx, AVPacket *pkt,
605 const AVFrame *frame, int *got_packet)
607 AOMContext *ctx = avctx->priv_data;
608 struct aom_image *rawimg = NULL;
609 int64_t timestamp = 0;
611 aom_enc_frame_flags_t flags = 0;
614 rawimg = &ctx->rawimg;
615 rawimg->planes[AOM_PLANE_Y] = frame->data[0];
616 rawimg->planes[AOM_PLANE_U] = frame->data[1];
617 rawimg->planes[AOM_PLANE_V] = frame->data[2];
618 rawimg->stride[AOM_PLANE_Y] = frame->linesize[0];
619 rawimg->stride[AOM_PLANE_U] = frame->linesize[1];
620 rawimg->stride[AOM_PLANE_V] = frame->linesize[2];
621 timestamp = frame->pts;
622 switch (frame->color_range) {
623 case AVCOL_RANGE_MPEG:
624 rawimg->range = AOM_CR_STUDIO_RANGE;
626 case AVCOL_RANGE_JPEG:
627 rawimg->range = AOM_CR_FULL_RANGE;
631 if (frame->pict_type == AV_PICTURE_TYPE_I)
632 flags |= AOM_EFLAG_FORCE_KF;
635 res = aom_codec_encode(&ctx->encoder, rawimg, timestamp,
636 avctx->ticks_per_frame, flags);
637 if (res != AOM_CODEC_OK) {
638 log_encoder_error(avctx, "Error encoding frame");
639 return AVERROR_INVALIDDATA;
641 coded_size = queue_frames(avctx, pkt);
643 if (!frame && avctx->flags & AV_CODEC_FLAG_PASS1) {
644 size_t b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
646 avctx->stats_out = av_malloc(b64_size);
647 if (!avctx->stats_out) {
648 av_log(avctx, AV_LOG_ERROR, "Stat buffer alloc (%"SIZE_SPECIFIER" bytes) failed\n",
650 return AVERROR(ENOMEM);
652 av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
653 ctx->twopass_stats.sz);
656 *got_packet = !!coded_size;
660 static const enum AVPixelFormat av1_pix_fmts[] = {
668 static const enum AVPixelFormat av1_pix_fmts_highbd[] = {
672 AV_PIX_FMT_YUV420P10,
673 AV_PIX_FMT_YUV422P10,
674 AV_PIX_FMT_YUV444P10,
675 AV_PIX_FMT_YUV420P12,
676 AV_PIX_FMT_YUV422P12,
677 AV_PIX_FMT_YUV444P12,
684 static av_cold void av1_init_static(AVCodec *codec)
686 aom_codec_caps_t codec_caps = aom_codec_get_caps(aom_codec_av1_cx());
687 if (codec_caps & AOM_CODEC_CAP_HIGHBITDEPTH)
688 codec->pix_fmts = av1_pix_fmts_highbd;
690 codec->pix_fmts = av1_pix_fmts;
693 static av_cold int av1_init(AVCodecContext *avctx)
695 return aom_init(avctx, aom_codec_av1_cx());
698 #define OFFSET(x) offsetof(AOMContext, x)
699 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
700 static const AVOption options[] = {
701 { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {.i64 = 1}, -8, 8, VE},
702 { "auto-alt-ref", "Enable use of alternate reference "
703 "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 2, VE},
704 { "lag-in-frames", "Number of frames to look ahead at for "
705 "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE},
706 { "error-resilience", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, VE, "er"},
707 { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {.i64 = AOM_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
708 { "partitions", "The frame partitions are independently decodable "
709 "by the bool decoder, meaning that partitions can be decoded even "
710 "though earlier partitions have been lost. Note that intra predicition"
711 " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {.i64 = AOM_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"},
712 { "crf", "Select the quality for constant quality mode", offsetof(AOMContext, crf), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 63, VE },
713 { "static-thresh", "A change threshold on blocks below which they will be skipped by the encoder", OFFSET(static_thresh), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
714 { "drop-threshold", "Frame drop threshold", offsetof(AOMContext, drop_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, VE },
715 { "noise-sensitivity", "Noise sensitivity", OFFSET(noise_sensitivity), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 4, VE},
719 static const AVCodecDefault defaults[] = {
723 { "keyint_min", "-1" },
727 static const AVClass class_aom = {
728 .class_name = "libaom-av1 encoder",
729 .item_name = av_default_item_name,
731 .version = LIBAVUTIL_VERSION_INT,
734 AVCodec ff_libaom_av1_encoder = {
735 .name = "libaom-av1",
736 .long_name = NULL_IF_CONFIG_SMALL("libaom AV1"),
737 .type = AVMEDIA_TYPE_VIDEO,
738 .id = AV_CODEC_ID_AV1,
739 .priv_data_size = sizeof(AOMContext),
741 .encode2 = aom_encode,
743 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS | AV_CODEC_CAP_EXPERIMENTAL,
744 .profiles = NULL_IF_CONFIG_SMALL(ff_av1_profiles),
745 .priv_class = &class_aom,
746 .defaults = defaults,
747 .init_static_data = av1_init_static,
748 .wrapper_name = "libaom",