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/intreadwrite.h"
33 #define X264_API_IMPORTS 1
43 typedef struct X264Context {
91 int scenechange_threshold;
97 static void X264_log(void *p, int level, const char *fmt, va_list args)
99 static const int level_map[] = {
100 [X264_LOG_ERROR] = AV_LOG_ERROR,
101 [X264_LOG_WARNING] = AV_LOG_WARNING,
102 [X264_LOG_INFO] = AV_LOG_INFO,
103 [X264_LOG_DEBUG] = AV_LOG_DEBUG
106 if (level < 0 || level > X264_LOG_DEBUG)
109 av_vlog(p, level_map[level], fmt, args);
113 static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,
114 const x264_nal_t *nals, int nnal)
116 X264Context *x4 = ctx->priv_data;
118 int i, size = x4->sei_size, ret;
123 for (i = 0; i < nnal; i++)
124 size += nals[i].i_payload;
126 if ((ret = ff_alloc_packet2(ctx, pkt, size, 0)) < 0)
131 /* Write the SEI as part of the first frame. */
132 if (x4->sei_size > 0 && nnal > 0) {
133 if (x4->sei_size > size) {
134 av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");
137 memcpy(p, x4->sei, x4->sei_size);
143 for (i = 0; i < nnal; i++){
144 memcpy(p, nals[i].p_payload, nals[i].i_payload);
145 p += nals[i].i_payload;
151 static int avfmt2_num_planes(int avfmt)
154 case AV_PIX_FMT_YUV420P:
155 case AV_PIX_FMT_YUVJ420P:
156 case AV_PIX_FMT_YUV420P9:
157 case AV_PIX_FMT_YUV420P10:
158 case AV_PIX_FMT_YUV444P:
161 case AV_PIX_FMT_BGR0:
162 case AV_PIX_FMT_BGR24:
163 case AV_PIX_FMT_RGB24:
171 static void reconfig_encoder(AVCodecContext *ctx, const AVFrame *frame)
173 X264Context *x4 = ctx->priv_data;
174 AVFrameSideData *side_data;
177 if (x4->avcintra_class < 0) {
178 if (x4->params.b_interlaced && x4->params.b_tff != frame->top_field_first) {
180 x4->params.b_tff = frame->top_field_first;
181 x264_encoder_reconfig(x4->enc, &x4->params);
183 if (x4->params.vui.i_sar_height*ctx->sample_aspect_ratio.num != ctx->sample_aspect_ratio.den * x4->params.vui.i_sar_width) {
184 x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
185 x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num;
186 x264_encoder_reconfig(x4->enc, &x4->params);
189 if (x4->params.rc.i_vbv_buffer_size != ctx->rc_buffer_size / 1000 ||
190 x4->params.rc.i_vbv_max_bitrate != ctx->rc_max_rate / 1000) {
191 x4->params.rc.i_vbv_buffer_size = ctx->rc_buffer_size / 1000;
192 x4->params.rc.i_vbv_max_bitrate = ctx->rc_max_rate / 1000;
193 x264_encoder_reconfig(x4->enc, &x4->params);
196 if (x4->params.rc.i_rc_method == X264_RC_ABR &&
197 x4->params.rc.i_bitrate != ctx->bit_rate / 1000) {
198 x4->params.rc.i_bitrate = ctx->bit_rate / 1000;
199 x264_encoder_reconfig(x4->enc, &x4->params);
203 x4->params.rc.i_rc_method == X264_RC_CRF &&
204 x4->params.rc.f_rf_constant != x4->crf) {
205 x4->params.rc.f_rf_constant = x4->crf;
206 x264_encoder_reconfig(x4->enc, &x4->params);
209 if (x4->params.rc.i_rc_method == X264_RC_CQP &&
211 x4->params.rc.i_qp_constant != x4->cqp) {
212 x4->params.rc.i_qp_constant = x4->cqp;
213 x264_encoder_reconfig(x4->enc, &x4->params);
216 if (x4->crf_max >= 0 &&
217 x4->params.rc.f_rf_constant_max != x4->crf_max) {
218 x4->params.rc.f_rf_constant_max = x4->crf_max;
219 x264_encoder_reconfig(x4->enc, &x4->params);
223 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_STEREO3D);
225 AVStereo3D *stereo = (AVStereo3D *)side_data->data;
228 switch (stereo->type) {
229 case AV_STEREO3D_CHECKERBOARD:
232 case AV_STEREO3D_COLUMNS:
235 case AV_STEREO3D_LINES:
238 case AV_STEREO3D_SIDEBYSIDE:
241 case AV_STEREO3D_TOPBOTTOM:
244 case AV_STEREO3D_FRAMESEQUENCE:
252 if (fpa_type != x4->params.i_frame_packing) {
253 x4->params.i_frame_packing = fpa_type;
254 x264_encoder_reconfig(x4->enc, &x4->params);
259 static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
262 X264Context *x4 = ctx->priv_data;
265 x264_picture_t pic_out = {0};
267 AVFrameSideData *side_data;
269 x264_picture_init( &x4->pic );
270 x4->pic.img.i_csp = x4->params.i_csp;
271 if (x264_bit_depth > 8)
272 x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;
273 x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);
276 for (i = 0; i < x4->pic.img.i_plane; i++) {
277 x4->pic.img.plane[i] = frame->data[i];
278 x4->pic.img.i_stride[i] = frame->linesize[i];
281 x4->pic.i_pts = frame->pts;
283 switch (frame->pict_type) {
284 case AV_PICTURE_TYPE_I:
285 x4->pic.i_type = x4->forced_idr >= 0 ? X264_TYPE_IDR
286 : X264_TYPE_KEYFRAME;
288 case AV_PICTURE_TYPE_P:
289 x4->pic.i_type = X264_TYPE_P;
291 case AV_PICTURE_TYPE_B:
292 x4->pic.i_type = X264_TYPE_B;
295 x4->pic.i_type = X264_TYPE_AUTO;
298 reconfig_encoder(ctx, frame);
301 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
303 x4->pic.extra_sei.payloads = av_mallocz(sizeof(x4->pic.extra_sei.payloads[0]));
304 if (x4->pic.extra_sei.payloads == NULL) {
305 av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
308 x4->pic.extra_sei.sei_free = av_free;
310 x4->pic.extra_sei.payloads[0].payload_size = side_data->size + 11;
311 x4->pic.extra_sei.payloads[0].payload = av_mallocz(x4->pic.extra_sei.payloads[0].payload_size);
312 if (x4->pic.extra_sei.payloads[0].payload == NULL) {
313 av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
314 av_freep(&x4->pic.extra_sei.payloads);
317 x4->pic.extra_sei.num_payloads = 1;
318 x4->pic.extra_sei.payloads[0].payload_type = 4;
319 memcpy(x4->pic.extra_sei.payloads[0].payload + 10, side_data->data, side_data->size);
320 x4->pic.extra_sei.payloads[0].payload[0] = 181;
321 x4->pic.extra_sei.payloads[0].payload[1] = 0;
322 x4->pic.extra_sei.payloads[0].payload[2] = 49;
325 * 'GA94' is standard in North America for ATSC, but hard coding
326 * this style may not be the right thing to do -- other formats
327 * do exist. This information is not available in the side_data
328 * so we are going with this right now.
330 AV_WL32(x4->pic.extra_sei.payloads[0].payload + 3,
331 MKTAG('G', 'A', '9', '4'));
332 x4->pic.extra_sei.payloads[0].payload[7] = 3;
333 x4->pic.extra_sei.payloads[0].payload[8] =
334 ((side_data->size/3) & 0x1f) | 0x40;
335 x4->pic.extra_sei.payloads[0].payload[9] = 0;
336 x4->pic.extra_sei.payloads[0].payload[side_data->size+10] = 255;
342 if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
343 return AVERROR_EXTERNAL;
345 ret = encode_nals(ctx, pkt, nal, nnal);
348 } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));
350 pkt->pts = pic_out.i_pts;
351 pkt->dts = pic_out.i_dts;
354 switch (pic_out.i_type) {
357 pict_type = AV_PICTURE_TYPE_I;
360 pict_type = AV_PICTURE_TYPE_P;
364 pict_type = AV_PICTURE_TYPE_B;
367 pict_type = AV_PICTURE_TYPE_NONE;
369 #if FF_API_CODED_FRAME
370 FF_DISABLE_DEPRECATION_WARNINGS
371 ctx->coded_frame->pict_type = pict_type;
372 FF_ENABLE_DEPRECATION_WARNINGS
375 pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;
377 ff_side_data_set_encoder_stats(pkt, (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA, NULL, 0, pict_type);
379 #if FF_API_CODED_FRAME
380 FF_DISABLE_DEPRECATION_WARNINGS
381 ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
382 FF_ENABLE_DEPRECATION_WARNINGS
390 static av_cold int X264_close(AVCodecContext *avctx)
392 X264Context *x4 = avctx->priv_data;
394 av_freep(&avctx->extradata);
398 x264_encoder_close(x4->enc);
405 #define OPT_STR(opt, param) \
408 if ((ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
409 if(ret == X264_PARAM_BAD_NAME) \
410 av_log(avctx, AV_LOG_ERROR, \
411 "bad option '%s': '%s'\n", opt, param); \
413 av_log(avctx, AV_LOG_ERROR, \
414 "bad value for '%s': '%s'\n", opt, param); \
419 static int convert_pix_fmt(enum AVPixelFormat pix_fmt)
422 case AV_PIX_FMT_YUV420P:
423 case AV_PIX_FMT_YUVJ420P:
424 case AV_PIX_FMT_YUV420P9:
425 case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;
426 case AV_PIX_FMT_YUV422P:
427 case AV_PIX_FMT_YUVJ422P:
428 case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;
429 case AV_PIX_FMT_YUV444P:
430 case AV_PIX_FMT_YUVJ444P:
431 case AV_PIX_FMT_YUV444P9:
432 case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;
434 case AV_PIX_FMT_BGR0:
435 return X264_CSP_BGRA;
436 case AV_PIX_FMT_BGR24:
439 case AV_PIX_FMT_RGB24:
442 case AV_PIX_FMT_NV12: return X264_CSP_NV12;
443 case AV_PIX_FMT_NV16:
444 case AV_PIX_FMT_NV20: return X264_CSP_NV16;
446 case AV_PIX_FMT_NV21: return X264_CSP_NV21;
452 #define PARSE_X264_OPT(name, var)\
453 if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
454 av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
455 return AVERROR(EINVAL);\
458 static av_cold int X264_init(AVCodecContext *avctx)
460 X264Context *x4 = avctx->priv_data;
461 AVCPBProperties *cpb_props;
464 if (avctx->global_quality > 0)
465 av_log(avctx, AV_LOG_WARNING, "-qscale is ignored, -crf is recommended.\n");
467 #if CONFIG_LIBX262_ENCODER
468 if (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
469 x4->params.b_mpeg2 = 1;
470 x264_param_default_mpeg2(&x4->params);
473 x264_param_default(&x4->params);
475 x4->params.b_deblocking_filter = avctx->flags & AV_CODEC_FLAG_LOOP_FILTER;
477 if (x4->preset || x4->tune)
478 if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
480 av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
481 av_log(avctx, AV_LOG_INFO, "Possible presets:");
482 for (i = 0; x264_preset_names[i]; i++)
483 av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);
484 av_log(avctx, AV_LOG_INFO, "\n");
485 av_log(avctx, AV_LOG_INFO, "Possible tunes:");
486 for (i = 0; x264_tune_names[i]; i++)
487 av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);
488 av_log(avctx, AV_LOG_INFO, "\n");
489 return AVERROR(EINVAL);
492 if (avctx->level > 0)
493 x4->params.i_level_idc = avctx->level;
495 x4->params.pf_log = X264_log;
496 x4->params.p_log_private = avctx;
497 x4->params.i_log_level = X264_LOG_DEBUG;
498 x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt);
500 PARSE_X264_OPT("weightp", wpredp);
502 if (avctx->bit_rate) {
503 x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
504 x4->params.rc.i_rc_method = X264_RC_ABR;
506 x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
507 x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
508 x4->params.rc.b_stat_write = avctx->flags & AV_CODEC_FLAG_PASS1;
509 if (avctx->flags & AV_CODEC_FLAG_PASS2) {
510 x4->params.rc.b_stat_read = 1;
513 x4->params.rc.i_rc_method = X264_RC_CRF;
514 x4->params.rc.f_rf_constant = x4->crf;
515 } else if (x4->cqp >= 0) {
516 x4->params.rc.i_rc_method = X264_RC_CQP;
517 x4->params.rc.i_qp_constant = x4->cqp;
520 if (x4->crf_max >= 0)
521 x4->params.rc.f_rf_constant_max = x4->crf_max;
524 if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&
525 (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
526 x4->params.rc.f_vbv_buffer_init =
527 (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
530 PARSE_X264_OPT("level", level);
532 if (avctx->i_quant_factor > 0)
533 x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
534 if (avctx->b_quant_factor > 0)
535 x4->params.rc.f_pb_factor = avctx->b_quant_factor;
537 #if FF_API_PRIVATE_OPT
538 FF_DISABLE_DEPRECATION_WARNINGS
539 if (avctx->chromaoffset >= 0)
540 x4->chroma_offset = avctx->chromaoffset;
541 FF_ENABLE_DEPRECATION_WARNINGS
543 if (x4->chroma_offset >= 0)
544 x4->params.analyse.i_chroma_qp_offset = x4->chroma_offset;
546 if (avctx->gop_size >= 0)
547 x4->params.i_keyint_max = avctx->gop_size;
548 if (avctx->max_b_frames >= 0)
549 x4->params.i_bframe = avctx->max_b_frames;
551 #if FF_API_PRIVATE_OPT
552 FF_DISABLE_DEPRECATION_WARNINGS
553 if (avctx->scenechange_threshold >= 0)
554 x4->scenechange_threshold = avctx->scenechange_threshold;
555 FF_ENABLE_DEPRECATION_WARNINGS
557 if (x4->scenechange_threshold >= 0)
558 x4->params.i_scenecut_threshold = x4->scenechange_threshold;
560 if (avctx->qmin >= 0)
561 x4->params.rc.i_qp_min = avctx->qmin;
562 if (avctx->qmax >= 0)
563 x4->params.rc.i_qp_max = avctx->qmax;
564 if (avctx->max_qdiff >= 0)
565 x4->params.rc.i_qp_step = avctx->max_qdiff;
566 if (avctx->qblur >= 0)
567 x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
568 if (avctx->qcompress >= 0)
569 x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
570 if (avctx->refs >= 0)
571 x4->params.i_frame_reference = avctx->refs;
572 else if (x4->level) {
574 int mbn = AV_CEIL_RSHIFT(avctx->width, 4) * AV_CEIL_RSHIFT(avctx->height, 4);
577 int scale = X264_BUILD < 129 ? 384 : 1;
579 if (!strcmp(x4->level, "1b")) {
581 } else if (strlen(x4->level) <= 3){
582 level_id = av_strtod(x4->level, &tail) * 10 + 0.5;
587 av_log(avctx, AV_LOG_WARNING, "Failed to parse level\n");
589 for (i = 0; i<x264_levels[i].level_idc; i++)
590 if (x264_levels[i].level_idc == level_id)
591 x4->params.i_frame_reference = av_clip(x264_levels[i].dpb / mbn / scale, 1, x4->params.i_frame_reference);
594 if (avctx->trellis >= 0)
595 x4->params.analyse.i_trellis = avctx->trellis;
596 if (avctx->me_range >= 0)
597 x4->params.analyse.i_me_range = avctx->me_range;
598 #if FF_API_PRIVATE_OPT
599 FF_DISABLE_DEPRECATION_WARNINGS
600 if (avctx->noise_reduction >= 0)
601 x4->noise_reduction = avctx->noise_reduction;
602 FF_ENABLE_DEPRECATION_WARNINGS
604 if (x4->noise_reduction >= 0)
605 x4->params.analyse.i_noise_reduction = x4->noise_reduction;
606 if (avctx->me_subpel_quality >= 0)
607 x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
608 #if FF_API_PRIVATE_OPT
609 FF_DISABLE_DEPRECATION_WARNINGS
610 if (avctx->b_frame_strategy >= 0)
611 x4->b_frame_strategy = avctx->b_frame_strategy;
612 FF_ENABLE_DEPRECATION_WARNINGS
614 if (avctx->keyint_min >= 0)
615 x4->params.i_keyint_min = avctx->keyint_min;
616 #if FF_API_CODER_TYPE
617 FF_DISABLE_DEPRECATION_WARNINGS
618 if (avctx->coder_type >= 0)
619 x4->coder = avctx->coder_type == FF_CODER_TYPE_AC;
620 FF_ENABLE_DEPRECATION_WARNINGS
622 if (avctx->me_cmp >= 0)
623 x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
625 if (x4->aq_mode >= 0)
626 x4->params.rc.i_aq_mode = x4->aq_mode;
627 if (x4->aq_strength >= 0)
628 x4->params.rc.f_aq_strength = x4->aq_strength;
629 PARSE_X264_OPT("psy-rd", psy_rd);
630 PARSE_X264_OPT("deblock", deblock);
631 PARSE_X264_OPT("partitions", partitions);
632 PARSE_X264_OPT("stats", stats);
634 x4->params.analyse.b_psy = x4->psy;
635 if (x4->rc_lookahead >= 0)
636 x4->params.rc.i_lookahead = x4->rc_lookahead;
637 if (x4->weightp >= 0)
638 x4->params.analyse.i_weighted_pred = x4->weightp;
639 if (x4->weightb >= 0)
640 x4->params.analyse.b_weighted_bipred = x4->weightb;
641 if (x4->cplxblur >= 0)
642 x4->params.rc.f_complexity_blur = x4->cplxblur;
645 x4->params.analyse.b_ssim = x4->ssim;
646 if (x4->intra_refresh >= 0)
647 x4->params.b_intra_refresh = x4->intra_refresh;
648 if (x4->bluray_compat >= 0) {
649 x4->params.b_bluray_compat = x4->bluray_compat;
650 x4->params.b_vfr_input = 0;
652 if (x4->avcintra_class >= 0)
653 #if X264_BUILD >= 142
654 x4->params.i_avcintra_class = x4->avcintra_class;
656 av_log(avctx, AV_LOG_ERROR,
657 "x264 too old for AVC Intra, at least version 142 needed\n");
659 if (x4->b_bias != INT_MIN)
660 x4->params.i_bframe_bias = x4->b_bias;
661 if (x4->b_pyramid >= 0)
662 x4->params.i_bframe_pyramid = x4->b_pyramid;
663 if (x4->mixed_refs >= 0)
664 x4->params.analyse.b_mixed_references = x4->mixed_refs;
666 x4->params.analyse.b_transform_8x8 = x4->dct8x8;
667 if (x4->fast_pskip >= 0)
668 x4->params.analyse.b_fast_pskip = x4->fast_pskip;
670 x4->params.b_aud = x4->aud;
672 x4->params.rc.b_mb_tree = x4->mbtree;
673 if (x4->direct_pred >= 0)
674 x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
676 if (x4->slice_max_size >= 0)
677 x4->params.i_slice_max_size = x4->slice_max_size;
679 if (x4->fastfirstpass)
680 x264_param_apply_fastfirstpass(&x4->params);
682 /* Allow specifying the x264 profile through AVCodecContext. */
684 switch (avctx->profile) {
685 case FF_PROFILE_H264_BASELINE:
686 x4->profile = av_strdup("baseline");
688 case FF_PROFILE_H264_HIGH:
689 x4->profile = av_strdup("high");
691 case FF_PROFILE_H264_HIGH_10:
692 x4->profile = av_strdup("high10");
694 case FF_PROFILE_H264_HIGH_422:
695 x4->profile = av_strdup("high422");
697 case FF_PROFILE_H264_HIGH_444:
698 x4->profile = av_strdup("high444");
700 case FF_PROFILE_H264_MAIN:
701 x4->profile = av_strdup("main");
707 if (x4->nal_hrd >= 0)
708 x4->params.i_nal_hrd = x4->nal_hrd;
710 if (x4->motion_est >= 0) {
711 x4->params.analyse.i_me_method = x4->motion_est;
712 #if FF_API_MOTION_EST
713 FF_DISABLE_DEPRECATION_WARNINGS
715 if (avctx->me_method == ME_EPZS)
716 x4->params.analyse.i_me_method = X264_ME_DIA;
717 else if (avctx->me_method == ME_HEX)
718 x4->params.analyse.i_me_method = X264_ME_HEX;
719 else if (avctx->me_method == ME_UMH)
720 x4->params.analyse.i_me_method = X264_ME_UMH;
721 else if (avctx->me_method == ME_FULL)
722 x4->params.analyse.i_me_method = X264_ME_ESA;
723 else if (avctx->me_method == ME_TESA)
724 x4->params.analyse.i_me_method = X264_ME_TESA;
725 FF_ENABLE_DEPRECATION_WARNINGS
730 x4->params.b_cabac = x4->coder;
732 if (x4->b_frame_strategy >= 0)
733 x4->params.i_bframe_adaptive = x4->b_frame_strategy;
736 if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {
738 av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);
739 av_log(avctx, AV_LOG_INFO, "Possible profiles:");
740 for (i = 0; x264_profile_names[i]; i++)
741 av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);
742 av_log(avctx, AV_LOG_INFO, "\n");
743 return AVERROR(EINVAL);
746 x4->params.i_width = avctx->width;
747 x4->params.i_height = avctx->height;
748 av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);
749 x4->params.vui.i_sar_width = sw;
750 x4->params.vui.i_sar_height = sh;
751 x4->params.i_timebase_den = avctx->time_base.den;
752 x4->params.i_timebase_num = avctx->time_base.num;
753 x4->params.i_fps_num = avctx->time_base.den;
754 x4->params.i_fps_den = avctx->time_base.num * avctx->ticks_per_frame;
756 x4->params.analyse.b_psnr = avctx->flags & AV_CODEC_FLAG_PSNR;
758 x4->params.i_threads = avctx->thread_count;
759 if (avctx->thread_type)
760 x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;
762 x4->params.b_interlaced = avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;
764 x4->params.b_open_gop = !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);
766 x4->params.i_slice_count = avctx->slices;
768 x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
769 avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
770 avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
771 avctx->color_range == AVCOL_RANGE_JPEG;
773 if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
774 x4->params.vui.i_colmatrix = avctx->colorspace;
775 if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED)
776 x4->params.vui.i_colorprim = avctx->color_primaries;
777 if (avctx->color_trc != AVCOL_TRC_UNSPECIFIED)
778 x4->params.vui.i_transfer = avctx->color_trc;
780 if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)
781 x4->params.b_repeat_headers = 0;
784 const char *p= x4->x264opts;
786 char param[256]={0}, val[256]={0};
787 if(sscanf(p, "%255[^:=]=%255[^:]", param, val) == 1){
796 if (x4->x264_params) {
797 AVDictionary *dict = NULL;
798 AVDictionaryEntry *en = NULL;
800 if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) {
801 while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
802 if (x264_param_parse(&x4->params, en->key, en->value) < 0)
803 av_log(avctx, AV_LOG_WARNING,
804 "Error parsing option '%s = %s'.\n",
812 // update AVCodecContext with x264 parameters
813 avctx->has_b_frames = x4->params.i_bframe ?
814 x4->params.i_bframe_pyramid ? 2 : 1 : 0;
815 if (avctx->max_b_frames < 0)
816 avctx->max_b_frames = 0;
818 avctx->bit_rate = x4->params.rc.i_bitrate*1000;
820 x4->enc = x264_encoder_open(&x4->params);
822 return AVERROR_EXTERNAL;
824 if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
829 s = x264_encoder_headers(x4->enc, &nal, &nnal);
830 avctx->extradata = p = av_mallocz(s + AV_INPUT_BUFFER_PADDING_SIZE);
832 return AVERROR(ENOMEM);
834 for (i = 0; i < nnal; i++) {
835 /* Don't put the SEI in extradata. */
836 if (nal[i].i_type == NAL_SEI) {
837 av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);
838 x4->sei_size = nal[i].i_payload;
839 x4->sei = av_malloc(x4->sei_size);
841 return AVERROR(ENOMEM);
842 memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);
845 memcpy(p, nal[i].p_payload, nal[i].i_payload);
846 p += nal[i].i_payload;
848 avctx->extradata_size = p - avctx->extradata;
851 cpb_props = ff_add_cpb_side_data(avctx);
853 return AVERROR(ENOMEM);
854 cpb_props->buffer_size = x4->params.rc.i_vbv_buffer_size * 1000;
855 cpb_props->max_bitrate = x4->params.rc.i_vbv_max_bitrate * 1000;
856 cpb_props->avg_bitrate = x4->params.rc.i_bitrate * 1000;
861 static const enum AVPixelFormat pix_fmts_8bit[] = {
875 static const enum AVPixelFormat pix_fmts_9bit[] = {
880 static const enum AVPixelFormat pix_fmts_10bit[] = {
881 AV_PIX_FMT_YUV420P10,
882 AV_PIX_FMT_YUV422P10,
883 AV_PIX_FMT_YUV444P10,
887 static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {
896 static av_cold void X264_init_static(AVCodec *codec)
898 if (x264_bit_depth == 8)
899 codec->pix_fmts = pix_fmts_8bit;
900 else if (x264_bit_depth == 9)
901 codec->pix_fmts = pix_fmts_9bit;
902 else if (x264_bit_depth == 10)
903 codec->pix_fmts = pix_fmts_10bit;
906 #define OFFSET(x) offsetof(X264Context, x)
907 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
908 static const AVOption options[] = {
909 { "preset", "Set the encoding preset (cf. x264 --fullhelp)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},
910 { "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
911 { "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
912 { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE},
913 {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
914 {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
915 {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
916 {"a53cc", "Use A53 Closed Captions (if available)", OFFSET(a53_cc), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, VE},
917 {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
918 { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
919 { "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 },
920 { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
921 { "aq-mode", "AQ method", OFFSET(aq_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},
922 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE}, INT_MIN, INT_MAX, VE, "aq_mode" },
923 { "variance", "Variance AQ (complexity mask)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
924 { "autovariance", "Auto-variance AQ", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
925 #if X264_BUILD >= 144
926 { "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" },
928 { "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},
929 { "psy", "Use psychovisual optimizations.", OFFSET(psy), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
930 { "psy-rd", "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING, {0 }, 0, 0, VE},
931 { "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 },
932 { "weightb", "Weighted prediction for B-frames.", OFFSET(weightb), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
933 { "weightp", "Weighted prediction analysis method.", OFFSET(weightp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },
934 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE}, INT_MIN, INT_MAX, VE, "weightp" },
935 { "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
936 { "smart", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART}, INT_MIN, INT_MAX, VE, "weightp" },
937 { "ssim", "Calculate and print SSIM stats.", OFFSET(ssim), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
938 { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
939 { "bluray-compat", "Bluray compatibility workarounds.", OFFSET(bluray_compat) ,AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
940 { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
941 { "b-pyramid", "Keep some B-frames as references.", OFFSET(b_pyramid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },
942 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE}, INT_MIN, INT_MAX, VE, "b_pyramid" },
943 { "strict", "Strictly hierarchical pyramid", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
944 { "normal", "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
945 { "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 },
946 { "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
947 { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
948 { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
949 { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
950 { "deblock", "Loop filter parameters, in <alpha:beta> form.", OFFSET(deblock), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
951 { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},
952 { "partitions", "A comma-separated list of partitions to consider. "
953 "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
954 { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
955 { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
956 { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
957 { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
958 { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
959 { "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 },
960 { "stats", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
961 { "nal-hrd", "Signal HRD information (requires vbv-bufsize; "
962 "cbr not allowed in .mp4)", OFFSET(nal_hrd), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },
963 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
964 { "vbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
965 { "cbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
966 { "avcintra-class","AVC-Intra class 50/100/200", OFFSET(avcintra_class),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 200 , VE},
967 { "motion-est", "Set motion estimation method", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},
968 { "dia", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_DIA }, INT_MIN, INT_MAX, VE, "motion-est" },
969 { "hex", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_HEX }, INT_MIN, INT_MAX, VE, "motion-est" },
970 { "umh", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_UMH }, INT_MIN, INT_MAX, VE, "motion-est" },
971 { "esa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_ESA }, INT_MIN, INT_MAX, VE, "motion-est" },
972 { "tesa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },
973 { "forced-idr", "If forcing keyframes, force them as IDR frames.", OFFSET(forced_idr), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
974 { "coder", "Coder type", OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE, "coder" },
975 { "default", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, INT_MIN, INT_MAX, VE, "coder" },
976 { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "coder" },
977 { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
978 { "vlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "coder" },
979 { "ac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
980 { "b_strategy", "Strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, VE },
981 { "chromaoffset", "QP difference between chroma and luma", OFFSET(chroma_offset), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
982 { "sc_threshold", "Scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
983 { "noise_reduction", "Noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
985 { "x264-params", "Override the x264 configuration using a :-separated list of key=value parameters", OFFSET(x264_params), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
989 static const AVCodecDefault x264_defaults[] = {
994 { "i_qfactor", "-1" },
995 { "b_qfactor", "-1" },
1001 // { "rc_lookahead", "-1" },
1003 #if FF_API_PRIVATE_OPT
1004 { "sc_threshold", "-1" },
1006 { "trellis", "-1" },
1007 #if FF_API_PRIVATE_OPT
1010 { "me_range", "-1" },
1011 #if FF_API_MOTION_EST
1012 { "me_method", "-1" },
1015 #if FF_API_PRIVATE_OPT
1016 { "b_strategy", "-1" },
1018 { "keyint_min", "-1" },
1019 #if FF_API_CODER_TYPE
1023 { "threads", AV_STRINGIFY(X264_THREADS_AUTO) },
1024 { "thread_type", "0" },
1025 { "flags", "+cgop" },
1026 { "rc_init_occupancy","-1" },
1030 #if CONFIG_LIBX264_ENCODER
1031 static const AVClass x264_class = {
1032 .class_name = "libx264",
1033 .item_name = av_default_item_name,
1035 .version = LIBAVUTIL_VERSION_INT,
1038 static const AVClass rgbclass = {
1039 .class_name = "libx264rgb",
1040 .item_name = av_default_item_name,
1042 .version = LIBAVUTIL_VERSION_INT,
1045 AVCodec ff_libx264_encoder = {
1047 .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
1048 .type = AVMEDIA_TYPE_VIDEO,
1049 .id = AV_CODEC_ID_H264,
1050 .priv_data_size = sizeof(X264Context),
1052 .encode2 = X264_frame,
1053 .close = X264_close,
1054 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
1055 .priv_class = &x264_class,
1056 .defaults = x264_defaults,
1057 .init_static_data = X264_init_static,
1058 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
1059 FF_CODEC_CAP_INIT_CLEANUP,
1062 AVCodec ff_libx264rgb_encoder = {
1063 .name = "libx264rgb",
1064 .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),
1065 .type = AVMEDIA_TYPE_VIDEO,
1066 .id = AV_CODEC_ID_H264,
1067 .priv_data_size = sizeof(X264Context),
1069 .encode2 = X264_frame,
1070 .close = X264_close,
1071 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
1072 .priv_class = &rgbclass,
1073 .defaults = x264_defaults,
1074 .pix_fmts = pix_fmts_8bit_rgb,
1078 #if CONFIG_LIBX262_ENCODER
1079 static const AVClass X262_class = {
1080 .class_name = "libx262",
1081 .item_name = av_default_item_name,
1083 .version = LIBAVUTIL_VERSION_INT,
1086 AVCodec ff_libx262_encoder = {
1088 .long_name = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),
1089 .type = AVMEDIA_TYPE_VIDEO,
1090 .id = AV_CODEC_ID_MPEG2VIDEO,
1091 .priv_data_size = sizeof(X264Context),
1093 .encode2 = X264_frame,
1094 .close = X264_close,
1095 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
1096 .priv_class = &X262_class,
1097 .defaults = x264_defaults,
1098 .pix_fmts = pix_fmts_8bit,
1099 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
1100 FF_CODEC_CAP_INIT_CLEANUP,