2 * H.264 encoding using the x264 library
3 * Copyright (C) 2005 Mans Rullgard <mans@mansr.com>
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libavutil/eval.h"
23 #include "libavutil/internal.h"
24 #include "libavutil/opt.h"
25 #include "libavutil/mem.h"
26 #include "libavutil/pixdesc.h"
27 #include "libavutil/stereo3d.h"
28 #include "libavutil/time.h"
29 #include "libavutil/intreadwrite.h"
32 #include "packet_internal.h"
35 #define X264_API_IMPORTS 1
45 // from x264.h, for quant_offsets, Macroblocks are 16x16
46 // blocks of pixels (with respect to the luma plane)
49 typedef struct X264Opaque {
50 int64_t reordered_opaque;
54 typedef struct X264Context {
100 int b_frame_strategy;
102 int scenechange_threshold;
105 AVDictionary *x264_params;
107 int nb_reordered_opaque, next_reordered_opaque;
108 X264Opaque *reordered_opaque;
111 * If the encoder does not support ROI then warn the first time we
112 * encounter a frame with ROI side data.
117 static void X264_log(void *p, int level, const char *fmt, va_list args)
119 static const int level_map[] = {
120 [X264_LOG_ERROR] = AV_LOG_ERROR,
121 [X264_LOG_WARNING] = AV_LOG_WARNING,
122 [X264_LOG_INFO] = AV_LOG_INFO,
123 [X264_LOG_DEBUG] = AV_LOG_DEBUG
126 if (level < 0 || level > X264_LOG_DEBUG)
129 av_vlog(p, level_map[level], fmt, args);
133 static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,
134 const x264_nal_t *nals, int nnal)
136 X264Context *x4 = ctx->priv_data;
138 int i, size = x4->sei_size, ret;
143 for (i = 0; i < nnal; i++)
144 size += nals[i].i_payload;
146 if ((ret = ff_alloc_packet2(ctx, pkt, size, 0)) < 0)
151 /* Write the SEI as part of the first frame. */
152 if (x4->sei_size > 0 && nnal > 0) {
153 if (x4->sei_size > size) {
154 av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");
157 memcpy(p, x4->sei, x4->sei_size);
163 for (i = 0; i < nnal; i++){
164 memcpy(p, nals[i].p_payload, nals[i].i_payload);
165 p += nals[i].i_payload;
171 static int avfmt2_num_planes(int avfmt)
174 case AV_PIX_FMT_YUV420P:
175 case AV_PIX_FMT_YUVJ420P:
176 case AV_PIX_FMT_YUV420P9:
177 case AV_PIX_FMT_YUV420P10:
178 case AV_PIX_FMT_YUV444P:
181 case AV_PIX_FMT_BGR0:
182 case AV_PIX_FMT_BGR24:
183 case AV_PIX_FMT_RGB24:
184 case AV_PIX_FMT_GRAY8:
185 case AV_PIX_FMT_GRAY10:
193 static void reconfig_encoder(AVCodecContext *ctx, const AVFrame *frame)
195 X264Context *x4 = ctx->priv_data;
196 AVFrameSideData *side_data;
199 if (x4->avcintra_class < 0) {
200 if (x4->params.b_interlaced && x4->params.b_tff != frame->top_field_first) {
202 x4->params.b_tff = frame->top_field_first;
203 x264_encoder_reconfig(x4->enc, &x4->params);
205 if (x4->params.vui.i_sar_height*ctx->sample_aspect_ratio.num != ctx->sample_aspect_ratio.den * x4->params.vui.i_sar_width) {
206 x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
207 x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num;
208 x264_encoder_reconfig(x4->enc, &x4->params);
211 if (x4->params.rc.i_vbv_buffer_size != ctx->rc_buffer_size / 1000 ||
212 x4->params.rc.i_vbv_max_bitrate != ctx->rc_max_rate / 1000) {
213 x4->params.rc.i_vbv_buffer_size = ctx->rc_buffer_size / 1000;
214 x4->params.rc.i_vbv_max_bitrate = ctx->rc_max_rate / 1000;
215 x264_encoder_reconfig(x4->enc, &x4->params);
218 if (x4->params.rc.i_rc_method == X264_RC_ABR &&
219 x4->params.rc.i_bitrate != ctx->bit_rate / 1000) {
220 x4->params.rc.i_bitrate = ctx->bit_rate / 1000;
221 x264_encoder_reconfig(x4->enc, &x4->params);
225 x4->params.rc.i_rc_method == X264_RC_CRF &&
226 x4->params.rc.f_rf_constant != x4->crf) {
227 x4->params.rc.f_rf_constant = x4->crf;
228 x264_encoder_reconfig(x4->enc, &x4->params);
231 if (x4->params.rc.i_rc_method == X264_RC_CQP &&
233 x4->params.rc.i_qp_constant != x4->cqp) {
234 x4->params.rc.i_qp_constant = x4->cqp;
235 x264_encoder_reconfig(x4->enc, &x4->params);
238 if (x4->crf_max >= 0 &&
239 x4->params.rc.f_rf_constant_max != x4->crf_max) {
240 x4->params.rc.f_rf_constant_max = x4->crf_max;
241 x264_encoder_reconfig(x4->enc, &x4->params);
245 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_STEREO3D);
247 AVStereo3D *stereo = (AVStereo3D *)side_data->data;
250 switch (stereo->type) {
251 case AV_STEREO3D_CHECKERBOARD:
254 case AV_STEREO3D_COLUMNS:
257 case AV_STEREO3D_LINES:
260 case AV_STEREO3D_SIDEBYSIDE:
263 case AV_STEREO3D_TOPBOTTOM:
266 case AV_STEREO3D_FRAMESEQUENCE:
269 #if X264_BUILD >= 145
279 /* Inverted mode is not supported by x264 */
280 if (stereo->flags & AV_STEREO3D_FLAG_INVERT) {
281 av_log(ctx, AV_LOG_WARNING,
282 "Ignoring unsupported inverted stereo value %d\n", fpa_type);
286 if (fpa_type != x4->params.i_frame_packing) {
287 x4->params.i_frame_packing = fpa_type;
288 x264_encoder_reconfig(x4->enc, &x4->params);
293 static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
296 X264Context *x4 = ctx->priv_data;
299 x264_picture_t pic_out = {0};
302 int64_t wallclock = 0;
303 X264Opaque *out_opaque;
306 x264_picture_init( &x4->pic );
307 x4->pic.img.i_csp = x4->params.i_csp;
308 #if X264_BUILD >= 153
309 bit_depth = x4->params.i_bitdepth;
311 bit_depth = x264_bit_depth;
314 x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;
315 x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);
318 for (i = 0; i < x4->pic.img.i_plane; i++) {
319 x4->pic.img.plane[i] = frame->data[i];
320 x4->pic.img.i_stride[i] = frame->linesize[i];
323 x4->pic.i_pts = frame->pts;
325 x4->reordered_opaque[x4->next_reordered_opaque].reordered_opaque = frame->reordered_opaque;
326 x4->reordered_opaque[x4->next_reordered_opaque].wallclock = wallclock;
327 if (ctx->export_side_data & AV_CODEC_EXPORT_DATA_PRFT)
328 x4->reordered_opaque[x4->next_reordered_opaque].wallclock = av_gettime();
329 x4->pic.opaque = &x4->reordered_opaque[x4->next_reordered_opaque];
330 x4->next_reordered_opaque++;
331 x4->next_reordered_opaque %= x4->nb_reordered_opaque;
333 switch (frame->pict_type) {
334 case AV_PICTURE_TYPE_I:
335 x4->pic.i_type = x4->forced_idr > 0 ? X264_TYPE_IDR
336 : X264_TYPE_KEYFRAME;
338 case AV_PICTURE_TYPE_P:
339 x4->pic.i_type = X264_TYPE_P;
341 case AV_PICTURE_TYPE_B:
342 x4->pic.i_type = X264_TYPE_B;
345 x4->pic.i_type = X264_TYPE_AUTO;
348 reconfig_encoder(ctx, frame);
354 ret = ff_alloc_a53_sei(frame, 0, &sei_data, &sei_size);
356 av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
357 } else if (sei_data) {
358 x4->pic.extra_sei.payloads = av_mallocz(sizeof(x4->pic.extra_sei.payloads[0]));
359 if (x4->pic.extra_sei.payloads == NULL) {
360 av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
363 x4->pic.extra_sei.sei_free = av_free;
365 x4->pic.extra_sei.payloads[0].payload_size = sei_size;
366 x4->pic.extra_sei.payloads[0].payload = sei_data;
367 x4->pic.extra_sei.num_payloads = 1;
368 x4->pic.extra_sei.payloads[0].payload_type = 4;
373 sd = av_frame_get_side_data(frame, AV_FRAME_DATA_REGIONS_OF_INTEREST);
375 if (x4->params.rc.i_aq_mode == X264_AQ_NONE) {
376 if (!x4->roi_warned) {
378 av_log(ctx, AV_LOG_WARNING, "Adaptive quantization must be enabled to use ROI encoding, skipping ROI.\n");
381 if (frame->interlaced_frame == 0) {
382 int mbx = (frame->width + MB_SIZE - 1) / MB_SIZE;
383 int mby = (frame->height + MB_SIZE - 1) / MB_SIZE;
384 int qp_range = 51 + 6 * (bit_depth - 8);
386 const AVRegionOfInterest *roi;
390 roi = (const AVRegionOfInterest*)sd->data;
391 roi_size = roi->self_size;
392 if (!roi_size || sd->size % roi_size != 0) {
393 av_log(ctx, AV_LOG_ERROR, "Invalid AVRegionOfInterest.self_size.\n");
394 return AVERROR(EINVAL);
396 nb_rois = sd->size / roi_size;
398 qoffsets = av_mallocz_array(mbx * mby, sizeof(*qoffsets));
400 return AVERROR(ENOMEM);
402 // This list must be iterated in reverse because the first
403 // region in the list applies when regions overlap.
404 for (int i = nb_rois - 1; i >= 0; i--) {
405 int startx, endx, starty, endy;
408 roi = (const AVRegionOfInterest*)(sd->data + roi_size * i);
410 starty = FFMIN(mby, roi->top / MB_SIZE);
411 endy = FFMIN(mby, (roi->bottom + MB_SIZE - 1)/ MB_SIZE);
412 startx = FFMIN(mbx, roi->left / MB_SIZE);
413 endx = FFMIN(mbx, (roi->right + MB_SIZE - 1)/ MB_SIZE);
415 if (roi->qoffset.den == 0) {
417 av_log(ctx, AV_LOG_ERROR, "AVRegionOfInterest.qoffset.den must not be zero.\n");
418 return AVERROR(EINVAL);
420 qoffset = roi->qoffset.num * 1.0f / roi->qoffset.den;
421 qoffset = av_clipf(qoffset * qp_range, -qp_range, +qp_range);
423 for (int y = starty; y < endy; y++) {
424 for (int x = startx; x < endx; x++) {
425 qoffsets[x + y*mbx] = qoffset;
430 x4->pic.prop.quant_offsets = qoffsets;
431 x4->pic.prop.quant_offsets_free = av_free;
433 if (!x4->roi_warned) {
435 av_log(ctx, AV_LOG_WARNING, "interlaced_frame not supported for ROI encoding yet, skipping ROI.\n");
443 if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
444 return AVERROR_EXTERNAL;
446 ret = encode_nals(ctx, pkt, nal, nnal);
449 } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));
454 pkt->pts = pic_out.i_pts;
455 pkt->dts = pic_out.i_dts;
457 out_opaque = pic_out.opaque;
458 if (out_opaque >= x4->reordered_opaque &&
459 out_opaque < &x4->reordered_opaque[x4->nb_reordered_opaque]) {
460 ctx->reordered_opaque = out_opaque->reordered_opaque;
461 wallclock = out_opaque->wallclock;
463 // Unexpected opaque pointer on picture output
464 ctx->reordered_opaque = 0;
467 switch (pic_out.i_type) {
470 pict_type = AV_PICTURE_TYPE_I;
473 pict_type = AV_PICTURE_TYPE_P;
477 pict_type = AV_PICTURE_TYPE_B;
480 av_log(ctx, AV_LOG_ERROR, "Unknown picture type encountered.\n");
481 return AVERROR_EXTERNAL;
483 #if FF_API_CODED_FRAME
484 FF_DISABLE_DEPRECATION_WARNINGS
485 ctx->coded_frame->pict_type = pict_type;
486 FF_ENABLE_DEPRECATION_WARNINGS
489 pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;
491 ff_side_data_set_encoder_stats(pkt, (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA, NULL, 0, pict_type);
493 ff_side_data_set_prft(pkt, wallclock);
495 #if FF_API_CODED_FRAME
496 FF_DISABLE_DEPRECATION_WARNINGS
497 ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
498 FF_ENABLE_DEPRECATION_WARNINGS
506 static av_cold int X264_close(AVCodecContext *avctx)
508 X264Context *x4 = avctx->priv_data;
510 av_freep(&avctx->extradata);
512 av_freep(&x4->reordered_opaque);
514 #if X264_BUILD >= 161
515 x264_param_cleanup(&x4->params);
519 x264_encoder_close(x4->enc);
526 static int parse_opts(AVCodecContext *avctx, const char *opt, const char *param)
528 X264Context *x4 = avctx->priv_data;
531 if ((ret = x264_param_parse(&x4->params, opt, param)) < 0) {
532 if (ret == X264_PARAM_BAD_NAME) {
533 av_log(avctx, AV_LOG_ERROR,
534 "bad option '%s': '%s'\n", opt, param);
535 ret = AVERROR(EINVAL);
536 #if X264_BUILD >= 161
537 } else if (ret == X264_PARAM_ALLOC_FAILED) {
538 av_log(avctx, AV_LOG_ERROR,
539 "out of memory parsing option '%s': '%s'\n", opt, param);
540 ret = AVERROR(ENOMEM);
543 av_log(avctx, AV_LOG_ERROR,
544 "bad value for '%s': '%s'\n", opt, param);
545 ret = AVERROR(EINVAL);
552 static int convert_pix_fmt(enum AVPixelFormat pix_fmt)
555 case AV_PIX_FMT_YUV420P:
556 case AV_PIX_FMT_YUVJ420P:
557 case AV_PIX_FMT_YUV420P9:
558 case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;
559 case AV_PIX_FMT_YUV422P:
560 case AV_PIX_FMT_YUVJ422P:
561 case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;
562 case AV_PIX_FMT_YUV444P:
563 case AV_PIX_FMT_YUVJ444P:
564 case AV_PIX_FMT_YUV444P9:
565 case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;
566 #if CONFIG_LIBX264RGB_ENCODER
567 case AV_PIX_FMT_BGR0:
568 return X264_CSP_BGRA;
569 case AV_PIX_FMT_BGR24:
572 case AV_PIX_FMT_RGB24:
575 case AV_PIX_FMT_NV12: return X264_CSP_NV12;
576 case AV_PIX_FMT_NV16:
577 case AV_PIX_FMT_NV20: return X264_CSP_NV16;
579 case AV_PIX_FMT_NV21: return X264_CSP_NV21;
582 case AV_PIX_FMT_GRAY8:
583 case AV_PIX_FMT_GRAY10: return X264_CSP_I400;
589 #define PARSE_X264_OPT(name, var)\
590 if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
591 av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
592 return AVERROR(EINVAL);\
595 static av_cold int X264_init(AVCodecContext *avctx)
597 X264Context *x4 = avctx->priv_data;
598 AVCPBProperties *cpb_props;
602 if (avctx->global_quality > 0)
603 av_log(avctx, AV_LOG_WARNING, "-qscale is ignored, -crf is recommended.\n");
605 #if CONFIG_LIBX262_ENCODER
606 if (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
607 x4->params.b_mpeg2 = 1;
608 x264_param_default_mpeg2(&x4->params);
611 x264_param_default(&x4->params);
613 x4->params.b_deblocking_filter = avctx->flags & AV_CODEC_FLAG_LOOP_FILTER;
615 if (x4->preset || x4->tune)
616 if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
618 av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
619 av_log(avctx, AV_LOG_INFO, "Possible presets:");
620 for (i = 0; x264_preset_names[i]; i++)
621 av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);
622 av_log(avctx, AV_LOG_INFO, "\n");
623 av_log(avctx, AV_LOG_INFO, "Possible tunes:");
624 for (i = 0; x264_tune_names[i]; i++)
625 av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);
626 av_log(avctx, AV_LOG_INFO, "\n");
627 return AVERROR(EINVAL);
630 if (avctx->level > 0)
631 x4->params.i_level_idc = avctx->level;
633 x4->params.pf_log = X264_log;
634 x4->params.p_log_private = avctx;
635 x4->params.i_log_level = X264_LOG_DEBUG;
636 x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt);
637 #if X264_BUILD >= 153
638 x4->params.i_bitdepth = av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth;
641 PARSE_X264_OPT("weightp", wpredp);
643 if (avctx->bit_rate) {
644 if (avctx->bit_rate / 1000 > INT_MAX || avctx->rc_max_rate / 1000 > INT_MAX) {
645 av_log(avctx, AV_LOG_ERROR, "bit_rate and rc_max_rate > %d000 not supported by libx264\n", INT_MAX);
646 return AVERROR(EINVAL);
648 x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
649 x4->params.rc.i_rc_method = X264_RC_ABR;
651 x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
652 x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
653 x4->params.rc.b_stat_write = avctx->flags & AV_CODEC_FLAG_PASS1;
654 if (avctx->flags & AV_CODEC_FLAG_PASS2) {
655 x4->params.rc.b_stat_read = 1;
658 x4->params.rc.i_rc_method = X264_RC_CRF;
659 x4->params.rc.f_rf_constant = x4->crf;
660 } else if (x4->cqp >= 0) {
661 x4->params.rc.i_rc_method = X264_RC_CQP;
662 x4->params.rc.i_qp_constant = x4->cqp;
665 if (x4->crf_max >= 0)
666 x4->params.rc.f_rf_constant_max = x4->crf_max;
669 if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&
670 (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
671 x4->params.rc.f_vbv_buffer_init =
672 (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
675 PARSE_X264_OPT("level", level);
677 if (avctx->i_quant_factor > 0)
678 x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
679 if (avctx->b_quant_factor > 0)
680 x4->params.rc.f_pb_factor = avctx->b_quant_factor;
682 #if FF_API_PRIVATE_OPT
683 FF_DISABLE_DEPRECATION_WARNINGS
684 if (avctx->chromaoffset >= 0)
685 x4->chroma_offset = avctx->chromaoffset;
686 FF_ENABLE_DEPRECATION_WARNINGS
688 if (x4->chroma_offset >= 0)
689 x4->params.analyse.i_chroma_qp_offset = x4->chroma_offset;
691 if (avctx->gop_size >= 0)
692 x4->params.i_keyint_max = avctx->gop_size;
693 if (avctx->max_b_frames >= 0)
694 x4->params.i_bframe = avctx->max_b_frames;
696 #if FF_API_PRIVATE_OPT
697 FF_DISABLE_DEPRECATION_WARNINGS
698 if (avctx->scenechange_threshold >= 0)
699 x4->scenechange_threshold = avctx->scenechange_threshold;
700 FF_ENABLE_DEPRECATION_WARNINGS
702 if (x4->scenechange_threshold >= 0)
703 x4->params.i_scenecut_threshold = x4->scenechange_threshold;
705 if (avctx->qmin >= 0)
706 x4->params.rc.i_qp_min = avctx->qmin;
707 if (avctx->qmax >= 0)
708 x4->params.rc.i_qp_max = avctx->qmax;
709 if (avctx->max_qdiff >= 0)
710 x4->params.rc.i_qp_step = avctx->max_qdiff;
711 if (avctx->qblur >= 0)
712 x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
713 if (avctx->qcompress >= 0)
714 x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
715 if (avctx->refs >= 0)
716 x4->params.i_frame_reference = avctx->refs;
717 else if (x4->params.i_level_idc > 0) {
719 int mbn = AV_CEIL_RSHIFT(avctx->width, 4) * AV_CEIL_RSHIFT(avctx->height, 4);
720 int scale = X264_BUILD < 129 ? 384 : 1;
722 for (i = 0; i<x264_levels[i].level_idc; i++)
723 if (x264_levels[i].level_idc == x4->params.i_level_idc)
724 x4->params.i_frame_reference = av_clip(x264_levels[i].dpb / mbn / scale, 1, x4->params.i_frame_reference);
727 if (avctx->trellis >= 0)
728 x4->params.analyse.i_trellis = avctx->trellis;
729 if (avctx->me_range >= 0)
730 x4->params.analyse.i_me_range = avctx->me_range;
731 #if FF_API_PRIVATE_OPT
732 FF_DISABLE_DEPRECATION_WARNINGS
733 if (avctx->noise_reduction >= 0)
734 x4->noise_reduction = avctx->noise_reduction;
735 FF_ENABLE_DEPRECATION_WARNINGS
737 if (x4->noise_reduction >= 0)
738 x4->params.analyse.i_noise_reduction = x4->noise_reduction;
739 if (avctx->me_subpel_quality >= 0)
740 x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
741 #if FF_API_PRIVATE_OPT
742 FF_DISABLE_DEPRECATION_WARNINGS
743 if (avctx->b_frame_strategy >= 0)
744 x4->b_frame_strategy = avctx->b_frame_strategy;
745 FF_ENABLE_DEPRECATION_WARNINGS
747 if (avctx->keyint_min >= 0)
748 x4->params.i_keyint_min = avctx->keyint_min;
749 #if FF_API_CODER_TYPE
750 FF_DISABLE_DEPRECATION_WARNINGS
751 if (avctx->coder_type >= 0)
752 x4->coder = avctx->coder_type == FF_CODER_TYPE_AC;
753 FF_ENABLE_DEPRECATION_WARNINGS
755 if (avctx->me_cmp >= 0)
756 x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
758 if (x4->aq_mode >= 0)
759 x4->params.rc.i_aq_mode = x4->aq_mode;
760 if (x4->aq_strength >= 0)
761 x4->params.rc.f_aq_strength = x4->aq_strength;
762 PARSE_X264_OPT("psy-rd", psy_rd);
763 PARSE_X264_OPT("deblock", deblock);
764 PARSE_X264_OPT("partitions", partitions);
765 PARSE_X264_OPT("stats", stats);
767 x4->params.analyse.b_psy = x4->psy;
768 if (x4->rc_lookahead >= 0)
769 x4->params.rc.i_lookahead = x4->rc_lookahead;
770 if (x4->weightp >= 0)
771 x4->params.analyse.i_weighted_pred = x4->weightp;
772 if (x4->weightb >= 0)
773 x4->params.analyse.b_weighted_bipred = x4->weightb;
774 if (x4->cplxblur >= 0)
775 x4->params.rc.f_complexity_blur = x4->cplxblur;
778 x4->params.analyse.b_ssim = x4->ssim;
779 if (x4->intra_refresh >= 0)
780 x4->params.b_intra_refresh = x4->intra_refresh;
781 if (x4->bluray_compat >= 0) {
782 x4->params.b_bluray_compat = x4->bluray_compat;
783 x4->params.b_vfr_input = 0;
785 if (x4->avcintra_class >= 0)
786 #if X264_BUILD >= 142
787 x4->params.i_avcintra_class = x4->avcintra_class;
789 av_log(avctx, AV_LOG_ERROR,
790 "x264 too old for AVC Intra, at least version 142 needed\n");
792 if (x4->b_bias != INT_MIN)
793 x4->params.i_bframe_bias = x4->b_bias;
794 if (x4->b_pyramid >= 0)
795 x4->params.i_bframe_pyramid = x4->b_pyramid;
796 if (x4->mixed_refs >= 0)
797 x4->params.analyse.b_mixed_references = x4->mixed_refs;
799 x4->params.analyse.b_transform_8x8 = x4->dct8x8;
800 if (x4->fast_pskip >= 0)
801 x4->params.analyse.b_fast_pskip = x4->fast_pskip;
803 x4->params.b_aud = x4->aud;
805 x4->params.rc.b_mb_tree = x4->mbtree;
806 if (x4->direct_pred >= 0)
807 x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
809 if (x4->slice_max_size >= 0)
810 x4->params.i_slice_max_size = x4->slice_max_size;
812 if (x4->fastfirstpass)
813 x264_param_apply_fastfirstpass(&x4->params);
815 /* Allow specifying the x264 profile through AVCodecContext. */
817 switch (avctx->profile) {
818 case FF_PROFILE_H264_BASELINE:
819 x4->profile = av_strdup("baseline");
821 case FF_PROFILE_H264_HIGH:
822 x4->profile = av_strdup("high");
824 case FF_PROFILE_H264_HIGH_10:
825 x4->profile = av_strdup("high10");
827 case FF_PROFILE_H264_HIGH_422:
828 x4->profile = av_strdup("high422");
830 case FF_PROFILE_H264_HIGH_444:
831 x4->profile = av_strdup("high444");
833 case FF_PROFILE_H264_MAIN:
834 x4->profile = av_strdup("main");
840 if (x4->nal_hrd >= 0)
841 x4->params.i_nal_hrd = x4->nal_hrd;
843 if (x4->motion_est >= 0)
844 x4->params.analyse.i_me_method = x4->motion_est;
847 x4->params.b_cabac = x4->coder;
849 if (x4->b_frame_strategy >= 0)
850 x4->params.i_bframe_adaptive = x4->b_frame_strategy;
853 if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {
855 av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);
856 av_log(avctx, AV_LOG_INFO, "Possible profiles:");
857 for (i = 0; x264_profile_names[i]; i++)
858 av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);
859 av_log(avctx, AV_LOG_INFO, "\n");
860 return AVERROR(EINVAL);
863 x4->params.i_width = avctx->width;
864 x4->params.i_height = avctx->height;
865 av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);
866 x4->params.vui.i_sar_width = sw;
867 x4->params.vui.i_sar_height = sh;
868 x4->params.i_timebase_den = avctx->time_base.den;
869 x4->params.i_timebase_num = avctx->time_base.num;
870 if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
871 x4->params.i_fps_num = avctx->framerate.num;
872 x4->params.i_fps_den = avctx->framerate.den;
874 x4->params.i_fps_num = avctx->time_base.den;
875 x4->params.i_fps_den = avctx->time_base.num * avctx->ticks_per_frame;
878 x4->params.analyse.b_psnr = avctx->flags & AV_CODEC_FLAG_PSNR;
880 x4->params.i_threads = avctx->thread_count;
881 if (avctx->thread_type)
882 x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;
884 x4->params.b_interlaced = avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;
886 x4->params.b_open_gop = !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);
888 x4->params.i_slice_count = avctx->slices;
890 x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
891 avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
892 avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
893 avctx->color_range == AVCOL_RANGE_JPEG;
895 if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
896 x4->params.vui.i_colmatrix = avctx->colorspace;
897 if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED)
898 x4->params.vui.i_colorprim = avctx->color_primaries;
899 if (avctx->color_trc != AVCOL_TRC_UNSPECIFIED)
900 x4->params.vui.i_transfer = avctx->color_trc;
902 if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)
903 x4->params.b_repeat_headers = 0;
906 const char *p= x4->x264opts;
908 char param[4096]={0}, val[4096]={0};
909 if(sscanf(p, "%4095[^:=]=%4095[^:]", param, val) == 1){
910 ret = parse_opts(avctx, param, "1");
914 ret = parse_opts(avctx, param, val);
925 AVDictionaryEntry *en = NULL;
926 while (en = av_dict_get(x4->x264_params, "", en, AV_DICT_IGNORE_SUFFIX)) {
927 if ((ret = x264_param_parse(&x4->params, en->key, en->value)) < 0) {
928 av_log(avctx, AV_LOG_WARNING,
929 "Error parsing option '%s = %s'.\n",
931 #if X264_BUILD >= 161
932 if (ret == X264_PARAM_ALLOC_FAILED)
933 return AVERROR(ENOMEM);
939 // update AVCodecContext with x264 parameters
940 avctx->has_b_frames = x4->params.i_bframe ?
941 x4->params.i_bframe_pyramid ? 2 : 1 : 0;
942 if (avctx->max_b_frames < 0)
943 avctx->max_b_frames = 0;
945 avctx->bit_rate = x4->params.rc.i_bitrate*1000LL;
947 x4->enc = x264_encoder_open(&x4->params);
949 return AVERROR_EXTERNAL;
951 if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
956 s = x264_encoder_headers(x4->enc, &nal, &nnal);
957 avctx->extradata = p = av_mallocz(s + AV_INPUT_BUFFER_PADDING_SIZE);
959 return AVERROR(ENOMEM);
961 for (i = 0; i < nnal; i++) {
962 /* Don't put the SEI in extradata. */
963 if (nal[i].i_type == NAL_SEI) {
964 av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);
965 x4->sei_size = nal[i].i_payload;
966 x4->sei = av_malloc(x4->sei_size);
968 return AVERROR(ENOMEM);
969 memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);
972 memcpy(p, nal[i].p_payload, nal[i].i_payload);
973 p += nal[i].i_payload;
975 avctx->extradata_size = p - avctx->extradata;
978 cpb_props = ff_add_cpb_side_data(avctx);
980 return AVERROR(ENOMEM);
981 cpb_props->buffer_size = x4->params.rc.i_vbv_buffer_size * 1000;
982 cpb_props->max_bitrate = x4->params.rc.i_vbv_max_bitrate * 1000LL;
983 cpb_props->avg_bitrate = x4->params.rc.i_bitrate * 1000LL;
985 // Overestimate the reordered opaque buffer size, in case a runtime
986 // reconfigure would increase the delay (which it shouldn't).
987 x4->nb_reordered_opaque = x264_encoder_maximum_delayed_frames(x4->enc) + 17;
988 x4->reordered_opaque = av_malloc_array(x4->nb_reordered_opaque,
989 sizeof(*x4->reordered_opaque));
990 if (!x4->reordered_opaque)
991 return AVERROR(ENOMEM);
996 static const enum AVPixelFormat pix_fmts_8bit[] = {
1000 AV_PIX_FMT_YUVJ422P,
1002 AV_PIX_FMT_YUVJ444P,
1005 #ifdef X264_CSP_NV21
1010 static const enum AVPixelFormat pix_fmts_9bit[] = {
1011 AV_PIX_FMT_YUV420P9,
1012 AV_PIX_FMT_YUV444P9,
1015 static const enum AVPixelFormat pix_fmts_10bit[] = {
1016 AV_PIX_FMT_YUV420P10,
1017 AV_PIX_FMT_YUV422P10,
1018 AV_PIX_FMT_YUV444P10,
1022 static const enum AVPixelFormat pix_fmts_all[] = {
1024 AV_PIX_FMT_YUVJ420P,
1026 AV_PIX_FMT_YUVJ422P,
1028 AV_PIX_FMT_YUVJ444P,
1031 #ifdef X264_CSP_NV21
1034 AV_PIX_FMT_YUV420P10,
1035 AV_PIX_FMT_YUV422P10,
1036 AV_PIX_FMT_YUV444P10,
1038 #ifdef X264_CSP_I400
1044 #if CONFIG_LIBX264RGB_ENCODER
1045 static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {
1053 static av_cold void X264_init_static(AVCodec *codec)
1055 #if X264_BUILD < 153
1056 if (x264_bit_depth == 8)
1057 codec->pix_fmts = pix_fmts_8bit;
1058 else if (x264_bit_depth == 9)
1059 codec->pix_fmts = pix_fmts_9bit;
1060 else if (x264_bit_depth == 10)
1061 codec->pix_fmts = pix_fmts_10bit;
1063 codec->pix_fmts = pix_fmts_all;
1067 #define OFFSET(x) offsetof(X264Context, x)
1068 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
1069 static const AVOption options[] = {
1070 { "preset", "Set the encoding preset (cf. x264 --fullhelp)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},
1071 { "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
1072 { "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
1073 { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE},
1074 {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
1075 {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
1076 {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
1077 {"a53cc", "Use A53 Closed Captions (if available)", OFFSET(a53_cc), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, VE},
1078 {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
1079 { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
1080 { "crf_max", "In CRF mode, prevents VBV from lowering quality beyond this point.",OFFSET(crf_max), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
1081 { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
1082 { "aq-mode", "AQ method", OFFSET(aq_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},
1083 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE}, INT_MIN, INT_MAX, VE, "aq_mode" },
1084 { "variance", "Variance AQ (complexity mask)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
1085 { "autovariance", "Auto-variance AQ", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
1086 #if X264_BUILD >= 144
1087 { "autovariance-biased", "Auto-variance AQ with bias to dark scenes", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE_BIASED}, INT_MIN, INT_MAX, VE, "aq_mode" },
1089 { "aq-strength", "AQ strength. Reduces blocking and blurring in flat and textured areas.", OFFSET(aq_strength), AV_OPT_TYPE_FLOAT, {.dbl = -1}, -1, FLT_MAX, VE},
1090 { "psy", "Use psychovisual optimizations.", OFFSET(psy), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1091 { "psy-rd", "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING, {0 }, 0, 0, VE},
1092 { "rc-lookahead", "Number of frames to look ahead for frametype and ratecontrol", OFFSET(rc_lookahead), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
1093 { "weightb", "Weighted prediction for B-frames.", OFFSET(weightb), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1094 { "weightp", "Weighted prediction analysis method.", OFFSET(weightp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },
1095 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE}, INT_MIN, INT_MAX, VE, "weightp" },
1096 { "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
1097 { "smart", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART}, INT_MIN, INT_MAX, VE, "weightp" },
1098 { "ssim", "Calculate and print SSIM stats.", OFFSET(ssim), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1099 { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1100 { "bluray-compat", "Bluray compatibility workarounds.", OFFSET(bluray_compat) ,AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1101 { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
1102 { "b-pyramid", "Keep some B-frames as references.", OFFSET(b_pyramid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },
1103 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE}, INT_MIN, INT_MAX, VE, "b_pyramid" },
1104 { "strict", "Strictly hierarchical pyramid", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
1105 { "normal", "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
1106 { "mixed-refs", "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_BOOL, { .i64 = -1}, -1, 1, VE },
1107 { "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
1108 { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
1109 { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
1110 { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
1111 { "deblock", "Loop filter parameters, in <alpha:beta> form.", OFFSET(deblock), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
1112 { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},
1113 { "partitions", "A comma-separated list of partitions to consider. "
1114 "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
1115 { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
1116 { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
1117 { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
1118 { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
1119 { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
1120 { "slice-max-size","Limit the size of each slice in bytes", OFFSET(slice_max_size),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
1121 { "stats", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
1122 { "nal-hrd", "Signal HRD information (requires vbv-bufsize; "
1123 "cbr not allowed in .mp4)", OFFSET(nal_hrd), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },
1124 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
1125 { "vbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
1126 { "cbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
1127 { "avcintra-class","AVC-Intra class 50/100/200", OFFSET(avcintra_class),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 200 , VE},
1128 { "me_method", "Set motion estimation method", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},
1129 { "motion-est", "Set motion estimation method", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},
1130 { "dia", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_DIA }, INT_MIN, INT_MAX, VE, "motion-est" },
1131 { "hex", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_HEX }, INT_MIN, INT_MAX, VE, "motion-est" },
1132 { "umh", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_UMH }, INT_MIN, INT_MAX, VE, "motion-est" },
1133 { "esa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_ESA }, INT_MIN, INT_MAX, VE, "motion-est" },
1134 { "tesa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },
1135 { "forced-idr", "If forcing keyframes, force them as IDR frames.", OFFSET(forced_idr), AV_OPT_TYPE_BOOL, { .i64 = 0 }, -1, 1, VE },
1136 { "coder", "Coder type", OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE, "coder" },
1137 { "default", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, INT_MIN, INT_MAX, VE, "coder" },
1138 { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "coder" },
1139 { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
1140 { "vlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "coder" },
1141 { "ac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
1142 { "b_strategy", "Strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, VE },
1143 { "chromaoffset", "QP difference between chroma and luma", OFFSET(chroma_offset), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
1144 { "sc_threshold", "Scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
1145 { "noise_reduction", "Noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
1147 { "x264-params", "Override the x264 configuration using a :-separated list of key=value parameters", OFFSET(x264_params), AV_OPT_TYPE_DICT, { 0 }, 0, 0, VE },
1151 static const AVCodecDefault x264_defaults[] = {
1156 { "i_qfactor", "-1" },
1157 { "b_qfactor", "-1" },
1163 // { "rc_lookahead", "-1" },
1165 #if FF_API_PRIVATE_OPT
1166 { "sc_threshold", "-1" },
1168 { "trellis", "-1" },
1169 #if FF_API_PRIVATE_OPT
1172 { "me_range", "-1" },
1174 #if FF_API_PRIVATE_OPT
1175 { "b_strategy", "-1" },
1177 { "keyint_min", "-1" },
1178 #if FF_API_CODER_TYPE
1182 { "threads", AV_STRINGIFY(X264_THREADS_AUTO) },
1183 { "thread_type", "0" },
1184 { "flags", "+cgop" },
1185 { "rc_init_occupancy","-1" },
1189 #if CONFIG_LIBX264_ENCODER
1190 static const AVClass x264_class = {
1191 .class_name = "libx264",
1192 .item_name = av_default_item_name,
1194 .version = LIBAVUTIL_VERSION_INT,
1197 AVCodec ff_libx264_encoder = {
1199 .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
1200 .type = AVMEDIA_TYPE_VIDEO,
1201 .id = AV_CODEC_ID_H264,
1202 .priv_data_size = sizeof(X264Context),
1204 .encode2 = X264_frame,
1205 .close = X264_close,
1206 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |
1207 AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
1208 .priv_class = &x264_class,
1209 .defaults = x264_defaults,
1210 .init_static_data = X264_init_static,
1211 #if X264_BUILD >= 158
1212 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_INIT_THREADSAFE,
1214 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1216 .wrapper_name = "libx264",
1220 #if CONFIG_LIBX264RGB_ENCODER
1221 static const AVClass rgbclass = {
1222 .class_name = "libx264rgb",
1223 .item_name = av_default_item_name,
1225 .version = LIBAVUTIL_VERSION_INT,
1228 AVCodec ff_libx264rgb_encoder = {
1229 .name = "libx264rgb",
1230 .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),
1231 .type = AVMEDIA_TYPE_VIDEO,
1232 .id = AV_CODEC_ID_H264,
1233 .priv_data_size = sizeof(X264Context),
1235 .encode2 = X264_frame,
1236 .close = X264_close,
1237 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |
1238 AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
1239 .priv_class = &rgbclass,
1240 .defaults = x264_defaults,
1241 .pix_fmts = pix_fmts_8bit_rgb,
1242 #if X264_BUILD >= 158
1243 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_INIT_THREADSAFE,
1245 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1247 .wrapper_name = "libx264",
1251 #if CONFIG_LIBX262_ENCODER
1252 static const AVClass X262_class = {
1253 .class_name = "libx262",
1254 .item_name = av_default_item_name,
1256 .version = LIBAVUTIL_VERSION_INT,
1259 AVCodec ff_libx262_encoder = {
1261 .long_name = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),
1262 .type = AVMEDIA_TYPE_VIDEO,
1263 .id = AV_CODEC_ID_MPEG2VIDEO,
1264 .priv_data_size = sizeof(X264Context),
1266 .encode2 = X264_frame,
1267 .close = X264_close,
1268 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |
1269 AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
1270 .priv_class = &X262_class,
1271 .defaults = x264_defaults,
1272 .pix_fmts = pix_fmts_8bit,
1273 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1274 .wrapper_name = "libx264",