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 static void X264_log(void *p, int level, const char *fmt, va_list args)
93 static const int level_map[] = {
94 [X264_LOG_ERROR] = AV_LOG_ERROR,
95 [X264_LOG_WARNING] = AV_LOG_WARNING,
96 [X264_LOG_INFO] = AV_LOG_INFO,
97 [X264_LOG_DEBUG] = AV_LOG_DEBUG
100 if (level < 0 || level > X264_LOG_DEBUG)
103 av_vlog(p, level_map[level], fmt, args);
107 static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,
108 const x264_nal_t *nals, int nnal)
110 X264Context *x4 = ctx->priv_data;
112 int i, size = x4->sei_size, ret;
117 for (i = 0; i < nnal; i++)
118 size += nals[i].i_payload;
120 if ((ret = ff_alloc_packet2(ctx, pkt, size, 0)) < 0)
125 /* Write the SEI as part of the first frame. */
126 if (x4->sei_size > 0 && nnal > 0) {
127 if (x4->sei_size > size) {
128 av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");
131 memcpy(p, x4->sei, x4->sei_size);
137 for (i = 0; i < nnal; i++){
138 memcpy(p, nals[i].p_payload, nals[i].i_payload);
139 p += nals[i].i_payload;
145 static int avfmt2_num_planes(int avfmt)
148 case AV_PIX_FMT_YUV420P:
149 case AV_PIX_FMT_YUVJ420P:
150 case AV_PIX_FMT_YUV420P9:
151 case AV_PIX_FMT_YUV420P10:
152 case AV_PIX_FMT_YUV444P:
155 case AV_PIX_FMT_BGR0:
156 case AV_PIX_FMT_BGR24:
157 case AV_PIX_FMT_RGB24:
165 static void reconfig_encoder(AVCodecContext *ctx, const AVFrame *frame)
167 X264Context *x4 = ctx->priv_data;
168 AVFrameSideData *side_data;
171 if (x4->avcintra_class < 0) {
172 if (x4->params.b_interlaced && x4->params.b_tff != frame->top_field_first) {
174 x4->params.b_tff = frame->top_field_first;
175 x264_encoder_reconfig(x4->enc, &x4->params);
177 if (x4->params.vui.i_sar_height*ctx->sample_aspect_ratio.num != ctx->sample_aspect_ratio.den * x4->params.vui.i_sar_width) {
178 x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
179 x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num;
180 x264_encoder_reconfig(x4->enc, &x4->params);
183 if (x4->params.rc.i_vbv_buffer_size != ctx->rc_buffer_size / 1000 ||
184 x4->params.rc.i_vbv_max_bitrate != ctx->rc_max_rate / 1000) {
185 x4->params.rc.i_vbv_buffer_size = ctx->rc_buffer_size / 1000;
186 x4->params.rc.i_vbv_max_bitrate = ctx->rc_max_rate / 1000;
187 x264_encoder_reconfig(x4->enc, &x4->params);
190 if (x4->params.rc.i_rc_method == X264_RC_ABR &&
191 x4->params.rc.i_bitrate != ctx->bit_rate / 1000) {
192 x4->params.rc.i_bitrate = ctx->bit_rate / 1000;
193 x264_encoder_reconfig(x4->enc, &x4->params);
197 x4->params.rc.i_rc_method == X264_RC_CRF &&
198 x4->params.rc.f_rf_constant != x4->crf) {
199 x4->params.rc.f_rf_constant = x4->crf;
200 x264_encoder_reconfig(x4->enc, &x4->params);
203 if (x4->params.rc.i_rc_method == X264_RC_CQP &&
205 x4->params.rc.i_qp_constant != x4->cqp) {
206 x4->params.rc.i_qp_constant = x4->cqp;
207 x264_encoder_reconfig(x4->enc, &x4->params);
210 if (x4->crf_max >= 0 &&
211 x4->params.rc.f_rf_constant_max != x4->crf_max) {
212 x4->params.rc.f_rf_constant_max = x4->crf_max;
213 x264_encoder_reconfig(x4->enc, &x4->params);
217 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_STEREO3D);
219 AVStereo3D *stereo = (AVStereo3D *)side_data->data;
222 switch (stereo->type) {
223 case AV_STEREO3D_CHECKERBOARD:
226 case AV_STEREO3D_COLUMNS:
229 case AV_STEREO3D_LINES:
232 case AV_STEREO3D_SIDEBYSIDE:
235 case AV_STEREO3D_TOPBOTTOM:
238 case AV_STEREO3D_FRAMESEQUENCE:
246 if (fpa_type != x4->params.i_frame_packing) {
247 x4->params.i_frame_packing = fpa_type;
248 x264_encoder_reconfig(x4->enc, &x4->params);
253 static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
256 X264Context *x4 = ctx->priv_data;
259 x264_picture_t pic_out = {0};
261 AVFrameSideData *side_data;
263 x264_picture_init( &x4->pic );
264 x4->pic.img.i_csp = x4->params.i_csp;
265 if (x264_bit_depth > 8)
266 x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;
267 x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);
270 for (i = 0; i < x4->pic.img.i_plane; i++) {
271 x4->pic.img.plane[i] = frame->data[i];
272 x4->pic.img.i_stride[i] = frame->linesize[i];
275 x4->pic.i_pts = frame->pts;
277 switch (frame->pict_type) {
278 case AV_PICTURE_TYPE_I:
279 x4->pic.i_type = x4->forced_idr >= 0 ? X264_TYPE_IDR
280 : X264_TYPE_KEYFRAME;
282 case AV_PICTURE_TYPE_P:
283 x4->pic.i_type = X264_TYPE_P;
285 case AV_PICTURE_TYPE_B:
286 x4->pic.i_type = X264_TYPE_B;
289 x4->pic.i_type = X264_TYPE_AUTO;
292 reconfig_encoder(ctx, frame);
295 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
297 x4->pic.extra_sei.payloads = av_mallocz(sizeof(x4->pic.extra_sei.payloads[0]));
298 if (x4->pic.extra_sei.payloads == NULL) {
299 av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
302 x4->pic.extra_sei.sei_free = av_free;
304 x4->pic.extra_sei.payloads[0].payload_size = side_data->size + 11;
305 x4->pic.extra_sei.payloads[0].payload = av_mallocz(x4->pic.extra_sei.payloads[0].payload_size);
306 if (x4->pic.extra_sei.payloads[0].payload == NULL) {
307 av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
308 av_freep(&x4->pic.extra_sei.payloads);
311 x4->pic.extra_sei.num_payloads = 1;
312 x4->pic.extra_sei.payloads[0].payload_type = 4;
313 memcpy(x4->pic.extra_sei.payloads[0].payload + 10, side_data->data, side_data->size);
314 x4->pic.extra_sei.payloads[0].payload[0] = 181;
315 x4->pic.extra_sei.payloads[0].payload[1] = 0;
316 x4->pic.extra_sei.payloads[0].payload[2] = 49;
319 * 'GA94' is standard in North America for ATSC, but hard coding
320 * this style may not be the right thing to do -- other formats
321 * do exist. This information is not available in the side_data
322 * so we are going with this right now.
324 AV_WL32(x4->pic.extra_sei.payloads[0].payload + 3,
325 MKTAG('G', 'A', '9', '4'));
326 x4->pic.extra_sei.payloads[0].payload[7] = 3;
327 x4->pic.extra_sei.payloads[0].payload[8] =
328 ((side_data->size/3) & 0x1f) | 0x40;
329 x4->pic.extra_sei.payloads[0].payload[9] = 0;
330 x4->pic.extra_sei.payloads[0].payload[side_data->size+10] = 255;
336 if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
337 return AVERROR_EXTERNAL;
339 ret = encode_nals(ctx, pkt, nal, nnal);
342 } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));
344 pkt->pts = pic_out.i_pts;
345 pkt->dts = pic_out.i_dts;
348 switch (pic_out.i_type) {
351 pict_type = AV_PICTURE_TYPE_I;
354 pict_type = AV_PICTURE_TYPE_P;
358 pict_type = AV_PICTURE_TYPE_B;
361 pict_type = AV_PICTURE_TYPE_NONE;
363 #if FF_API_CODED_FRAME
364 FF_DISABLE_DEPRECATION_WARNINGS
365 ctx->coded_frame->pict_type = pict_type;
366 FF_ENABLE_DEPRECATION_WARNINGS
369 pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;
371 ff_side_data_set_encoder_stats(pkt, (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA, NULL, 0, pict_type);
373 #if FF_API_CODED_FRAME
374 FF_DISABLE_DEPRECATION_WARNINGS
375 ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
376 FF_ENABLE_DEPRECATION_WARNINGS
384 static av_cold int X264_close(AVCodecContext *avctx)
386 X264Context *x4 = avctx->priv_data;
388 av_freep(&avctx->extradata);
392 x264_encoder_close(x4->enc);
399 #define OPT_STR(opt, param) \
402 if ((ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
403 if(ret == X264_PARAM_BAD_NAME) \
404 av_log(avctx, AV_LOG_ERROR, \
405 "bad option '%s': '%s'\n", opt, param); \
407 av_log(avctx, AV_LOG_ERROR, \
408 "bad value for '%s': '%s'\n", opt, param); \
413 static int convert_pix_fmt(enum AVPixelFormat pix_fmt)
416 case AV_PIX_FMT_YUV420P:
417 case AV_PIX_FMT_YUVJ420P:
418 case AV_PIX_FMT_YUV420P9:
419 case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;
420 case AV_PIX_FMT_YUV422P:
421 case AV_PIX_FMT_YUVJ422P:
422 case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;
423 case AV_PIX_FMT_YUV444P:
424 case AV_PIX_FMT_YUVJ444P:
425 case AV_PIX_FMT_YUV444P9:
426 case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;
428 case AV_PIX_FMT_BGR0:
429 return X264_CSP_BGRA;
430 case AV_PIX_FMT_BGR24:
433 case AV_PIX_FMT_RGB24:
436 case AV_PIX_FMT_NV12: return X264_CSP_NV12;
437 case AV_PIX_FMT_NV16:
438 case AV_PIX_FMT_NV20: return X264_CSP_NV16;
440 case AV_PIX_FMT_NV21: return X264_CSP_NV21;
446 #define PARSE_X264_OPT(name, var)\
447 if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
448 av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
449 return AVERROR(EINVAL);\
452 static av_cold int X264_init(AVCodecContext *avctx)
454 X264Context *x4 = avctx->priv_data;
455 AVCPBProperties *cpb_props;
458 if (avctx->global_quality > 0)
459 av_log(avctx, AV_LOG_WARNING, "-qscale is ignored, -crf is recommended.\n");
461 #if CONFIG_LIBX262_ENCODER
462 if (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
463 x4->params.b_mpeg2 = 1;
464 x264_param_default_mpeg2(&x4->params);
467 x264_param_default(&x4->params);
469 x4->params.b_deblocking_filter = avctx->flags & AV_CODEC_FLAG_LOOP_FILTER;
471 if (x4->preset || x4->tune)
472 if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
474 av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
475 av_log(avctx, AV_LOG_INFO, "Possible presets:");
476 for (i = 0; x264_preset_names[i]; i++)
477 av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);
478 av_log(avctx, AV_LOG_INFO, "\n");
479 av_log(avctx, AV_LOG_INFO, "Possible tunes:");
480 for (i = 0; x264_tune_names[i]; i++)
481 av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);
482 av_log(avctx, AV_LOG_INFO, "\n");
483 return AVERROR(EINVAL);
486 if (avctx->level > 0)
487 x4->params.i_level_idc = avctx->level;
489 x4->params.pf_log = X264_log;
490 x4->params.p_log_private = avctx;
491 x4->params.i_log_level = X264_LOG_DEBUG;
492 x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt);
494 PARSE_X264_OPT("weightp", wpredp);
496 if (avctx->bit_rate) {
497 x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
498 x4->params.rc.i_rc_method = X264_RC_ABR;
500 x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
501 x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
502 x4->params.rc.b_stat_write = avctx->flags & AV_CODEC_FLAG_PASS1;
503 if (avctx->flags & AV_CODEC_FLAG_PASS2) {
504 x4->params.rc.b_stat_read = 1;
507 x4->params.rc.i_rc_method = X264_RC_CRF;
508 x4->params.rc.f_rf_constant = x4->crf;
509 } else if (x4->cqp >= 0) {
510 x4->params.rc.i_rc_method = X264_RC_CQP;
511 x4->params.rc.i_qp_constant = x4->cqp;
514 if (x4->crf_max >= 0)
515 x4->params.rc.f_rf_constant_max = x4->crf_max;
518 if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&
519 (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
520 x4->params.rc.f_vbv_buffer_init =
521 (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
524 PARSE_X264_OPT("level", level);
526 if (avctx->i_quant_factor > 0)
527 x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
528 if (avctx->b_quant_factor > 0)
529 x4->params.rc.f_pb_factor = avctx->b_quant_factor;
530 if (avctx->chromaoffset)
531 x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
533 if (avctx->gop_size >= 0)
534 x4->params.i_keyint_max = avctx->gop_size;
535 if (avctx->max_b_frames >= 0)
536 x4->params.i_bframe = avctx->max_b_frames;
537 if (avctx->scenechange_threshold >= 0)
538 x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
539 if (avctx->qmin >= 0)
540 x4->params.rc.i_qp_min = avctx->qmin;
541 if (avctx->qmax >= 0)
542 x4->params.rc.i_qp_max = avctx->qmax;
543 if (avctx->max_qdiff >= 0)
544 x4->params.rc.i_qp_step = avctx->max_qdiff;
545 if (avctx->qblur >= 0)
546 x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
547 if (avctx->qcompress >= 0)
548 x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
549 if (avctx->refs >= 0)
550 x4->params.i_frame_reference = avctx->refs;
551 else if (x4->level) {
553 int mbn = FF_CEIL_RSHIFT(avctx->width, 4) * FF_CEIL_RSHIFT(avctx->height, 4);
556 int scale = X264_BUILD < 129 ? 384 : 1;
558 if (!strcmp(x4->level, "1b")) {
560 } else if (strlen(x4->level) <= 3){
561 level_id = av_strtod(x4->level, &tail) * 10 + 0.5;
566 av_log(avctx, AV_LOG_WARNING, "Failed to parse level\n");
568 for (i = 0; i<x264_levels[i].level_idc; i++)
569 if (x264_levels[i].level_idc == level_id)
570 x4->params.i_frame_reference = av_clip(x264_levels[i].dpb / mbn / scale, 1, x4->params.i_frame_reference);
573 if (avctx->trellis >= 0)
574 x4->params.analyse.i_trellis = avctx->trellis;
575 if (avctx->me_range >= 0)
576 x4->params.analyse.i_me_range = avctx->me_range;
577 if (avctx->noise_reduction >= 0)
578 x4->params.analyse.i_noise_reduction = avctx->noise_reduction;
579 if (avctx->me_subpel_quality >= 0)
580 x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
581 if (avctx->b_frame_strategy >= 0)
582 x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
583 if (avctx->keyint_min >= 0)
584 x4->params.i_keyint_min = avctx->keyint_min;
585 if (avctx->coder_type >= 0)
586 x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
587 if (avctx->me_cmp >= 0)
588 x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
590 if (x4->aq_mode >= 0)
591 x4->params.rc.i_aq_mode = x4->aq_mode;
592 if (x4->aq_strength >= 0)
593 x4->params.rc.f_aq_strength = x4->aq_strength;
594 PARSE_X264_OPT("psy-rd", psy_rd);
595 PARSE_X264_OPT("deblock", deblock);
596 PARSE_X264_OPT("partitions", partitions);
597 PARSE_X264_OPT("stats", stats);
599 x4->params.analyse.b_psy = x4->psy;
600 if (x4->rc_lookahead >= 0)
601 x4->params.rc.i_lookahead = x4->rc_lookahead;
602 if (x4->weightp >= 0)
603 x4->params.analyse.i_weighted_pred = x4->weightp;
604 if (x4->weightb >= 0)
605 x4->params.analyse.b_weighted_bipred = x4->weightb;
606 if (x4->cplxblur >= 0)
607 x4->params.rc.f_complexity_blur = x4->cplxblur;
610 x4->params.analyse.b_ssim = x4->ssim;
611 if (x4->intra_refresh >= 0)
612 x4->params.b_intra_refresh = x4->intra_refresh;
613 if (x4->bluray_compat >= 0) {
614 x4->params.b_bluray_compat = x4->bluray_compat;
615 x4->params.b_vfr_input = 0;
617 if (x4->avcintra_class >= 0)
618 #if X264_BUILD >= 142
619 x4->params.i_avcintra_class = x4->avcintra_class;
621 av_log(avctx, AV_LOG_ERROR,
622 "x264 too old for AVC Intra, at least version 142 needed\n");
624 if (x4->b_bias != INT_MIN)
625 x4->params.i_bframe_bias = x4->b_bias;
626 if (x4->b_pyramid >= 0)
627 x4->params.i_bframe_pyramid = x4->b_pyramid;
628 if (x4->mixed_refs >= 0)
629 x4->params.analyse.b_mixed_references = x4->mixed_refs;
631 x4->params.analyse.b_transform_8x8 = x4->dct8x8;
632 if (x4->fast_pskip >= 0)
633 x4->params.analyse.b_fast_pskip = x4->fast_pskip;
635 x4->params.b_aud = x4->aud;
637 x4->params.rc.b_mb_tree = x4->mbtree;
638 if (x4->direct_pred >= 0)
639 x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
641 if (x4->slice_max_size >= 0)
642 x4->params.i_slice_max_size = x4->slice_max_size;
645 * Allow x264 to be instructed through AVCodecContext about the maximum
646 * size of the RTP payload. For example, this enables the production of
647 * payload suitable for the H.264 RTP packetization-mode 0 i.e. single
648 * NAL unit per RTP packet.
650 if (avctx->rtp_payload_size)
651 x4->params.i_slice_max_size = avctx->rtp_payload_size;
654 if (x4->fastfirstpass)
655 x264_param_apply_fastfirstpass(&x4->params);
657 /* Allow specifying the x264 profile through AVCodecContext. */
659 switch (avctx->profile) {
660 case FF_PROFILE_H264_BASELINE:
661 x4->profile = av_strdup("baseline");
663 case FF_PROFILE_H264_HIGH:
664 x4->profile = av_strdup("high");
666 case FF_PROFILE_H264_HIGH_10:
667 x4->profile = av_strdup("high10");
669 case FF_PROFILE_H264_HIGH_422:
670 x4->profile = av_strdup("high422");
672 case FF_PROFILE_H264_HIGH_444:
673 x4->profile = av_strdup("high444");
675 case FF_PROFILE_H264_MAIN:
676 x4->profile = av_strdup("main");
682 if (x4->nal_hrd >= 0)
683 x4->params.i_nal_hrd = x4->nal_hrd;
685 if (x4->motion_est >= 0) {
686 x4->params.analyse.i_me_method = x4->motion_est;
687 #if FF_API_MOTION_EST
688 FF_DISABLE_DEPRECATION_WARNINGS
690 if (avctx->me_method == ME_EPZS)
691 x4->params.analyse.i_me_method = X264_ME_DIA;
692 else if (avctx->me_method == ME_HEX)
693 x4->params.analyse.i_me_method = X264_ME_HEX;
694 else if (avctx->me_method == ME_UMH)
695 x4->params.analyse.i_me_method = X264_ME_UMH;
696 else if (avctx->me_method == ME_FULL)
697 x4->params.analyse.i_me_method = X264_ME_ESA;
698 else if (avctx->me_method == ME_TESA)
699 x4->params.analyse.i_me_method = X264_ME_TESA;
700 FF_ENABLE_DEPRECATION_WARNINGS
705 if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {
707 av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);
708 av_log(avctx, AV_LOG_INFO, "Possible profiles:");
709 for (i = 0; x264_profile_names[i]; i++)
710 av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);
711 av_log(avctx, AV_LOG_INFO, "\n");
712 return AVERROR(EINVAL);
715 x4->params.i_width = avctx->width;
716 x4->params.i_height = avctx->height;
717 av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);
718 x4->params.vui.i_sar_width = sw;
719 x4->params.vui.i_sar_height = sh;
720 x4->params.i_timebase_den = avctx->time_base.den;
721 x4->params.i_timebase_num = avctx->time_base.num;
722 x4->params.i_fps_num = avctx->time_base.den;
723 x4->params.i_fps_den = avctx->time_base.num * avctx->ticks_per_frame;
725 x4->params.analyse.b_psnr = avctx->flags & AV_CODEC_FLAG_PSNR;
727 x4->params.i_threads = avctx->thread_count;
728 if (avctx->thread_type)
729 x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;
731 x4->params.b_interlaced = avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;
733 x4->params.b_open_gop = !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);
735 x4->params.i_slice_count = avctx->slices;
737 x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
738 avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
739 avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
740 avctx->color_range == AVCOL_RANGE_JPEG;
742 if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
743 x4->params.vui.i_colmatrix = avctx->colorspace;
744 if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED)
745 x4->params.vui.i_colorprim = avctx->color_primaries;
746 if (avctx->color_trc != AVCOL_TRC_UNSPECIFIED)
747 x4->params.vui.i_transfer = avctx->color_trc;
749 if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)
750 x4->params.b_repeat_headers = 0;
753 const char *p= x4->x264opts;
755 char param[256]={0}, val[256]={0};
756 if(sscanf(p, "%255[^:=]=%255[^:]", param, val) == 1){
765 if (x4->x264_params) {
766 AVDictionary *dict = NULL;
767 AVDictionaryEntry *en = NULL;
769 if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) {
770 while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
771 if (x264_param_parse(&x4->params, en->key, en->value) < 0)
772 av_log(avctx, AV_LOG_WARNING,
773 "Error parsing option '%s = %s'.\n",
781 // update AVCodecContext with x264 parameters
782 avctx->has_b_frames = x4->params.i_bframe ?
783 x4->params.i_bframe_pyramid ? 2 : 1 : 0;
784 if (avctx->max_b_frames < 0)
785 avctx->max_b_frames = 0;
787 avctx->bit_rate = x4->params.rc.i_bitrate*1000;
789 x4->enc = x264_encoder_open(&x4->params);
791 return AVERROR_EXTERNAL;
793 if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
798 s = x264_encoder_headers(x4->enc, &nal, &nnal);
799 avctx->extradata = p = av_mallocz(s + AV_INPUT_BUFFER_PADDING_SIZE);
801 return AVERROR(ENOMEM);
803 for (i = 0; i < nnal; i++) {
804 /* Don't put the SEI in extradata. */
805 if (nal[i].i_type == NAL_SEI) {
806 av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);
807 x4->sei_size = nal[i].i_payload;
808 x4->sei = av_malloc(x4->sei_size);
810 return AVERROR(ENOMEM);
811 memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);
814 memcpy(p, nal[i].p_payload, nal[i].i_payload);
815 p += nal[i].i_payload;
817 avctx->extradata_size = p - avctx->extradata;
820 cpb_props = ff_add_cpb_side_data(avctx);
822 return AVERROR(ENOMEM);
823 cpb_props->buffer_size = x4->params.rc.i_vbv_buffer_size * 1000;
824 cpb_props->max_bitrate = x4->params.rc.i_vbv_max_bitrate * 1000;
825 cpb_props->avg_bitrate = x4->params.rc.i_bitrate * 1000;
830 static const enum AVPixelFormat pix_fmts_8bit[] = {
844 static const enum AVPixelFormat pix_fmts_9bit[] = {
849 static const enum AVPixelFormat pix_fmts_10bit[] = {
850 AV_PIX_FMT_YUV420P10,
851 AV_PIX_FMT_YUV422P10,
852 AV_PIX_FMT_YUV444P10,
856 static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {
865 static av_cold void X264_init_static(AVCodec *codec)
867 if (x264_bit_depth == 8)
868 codec->pix_fmts = pix_fmts_8bit;
869 else if (x264_bit_depth == 9)
870 codec->pix_fmts = pix_fmts_9bit;
871 else if (x264_bit_depth == 10)
872 codec->pix_fmts = pix_fmts_10bit;
875 #define OFFSET(x) offsetof(X264Context, x)
876 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
877 static const AVOption options[] = {
878 { "preset", "Set the encoding preset (cf. x264 --fullhelp)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},
879 { "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
880 { "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
881 { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE},
882 {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
883 {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
884 {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
885 {"a53cc", "Use A53 Closed Captions (if available)", OFFSET(a53_cc), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, VE},
886 {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
887 { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
888 { "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 },
889 { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
890 { "aq-mode", "AQ method", OFFSET(aq_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},
891 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE}, INT_MIN, INT_MAX, VE, "aq_mode" },
892 { "variance", "Variance AQ (complexity mask)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
893 { "autovariance", "Auto-variance AQ", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
894 #if X264_BUILD >= 144
895 { "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" },
897 { "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},
898 { "psy", "Use psychovisual optimizations.", OFFSET(psy), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
899 { "psy-rd", "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING, {0 }, 0, 0, VE},
900 { "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 },
901 { "weightb", "Weighted prediction for B-frames.", OFFSET(weightb), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
902 { "weightp", "Weighted prediction analysis method.", OFFSET(weightp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },
903 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE}, INT_MIN, INT_MAX, VE, "weightp" },
904 { "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
905 { "smart", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART}, INT_MIN, INT_MAX, VE, "weightp" },
906 { "ssim", "Calculate and print SSIM stats.", OFFSET(ssim), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
907 { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
908 { "bluray-compat", "Bluray compatibility workarounds.", OFFSET(bluray_compat) ,AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
909 { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
910 { "b-pyramid", "Keep some B-frames as references.", OFFSET(b_pyramid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },
911 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE}, INT_MIN, INT_MAX, VE, "b_pyramid" },
912 { "strict", "Strictly hierarchical pyramid", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
913 { "normal", "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
914 { "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 },
915 { "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
916 { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
917 { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
918 { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
919 { "deblock", "Loop filter parameters, in <alpha:beta> form.", OFFSET(deblock), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
920 { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},
921 { "partitions", "A comma-separated list of partitions to consider. "
922 "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
923 { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
924 { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
925 { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
926 { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
927 { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
928 { "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 },
929 { "stats", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
930 { "nal-hrd", "Signal HRD information (requires vbv-bufsize; "
931 "cbr not allowed in .mp4)", OFFSET(nal_hrd), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },
932 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
933 { "vbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
934 { "cbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
935 { "avcintra-class","AVC-Intra class 50/100/200", OFFSET(avcintra_class),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 200 , VE},
936 { "motion-est", "Set motion estimation method", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},
937 { "dia", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_DIA }, INT_MIN, INT_MAX, VE, "motion-est" },
938 { "hex", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_HEX }, INT_MIN, INT_MAX, VE, "motion-est" },
939 { "umh", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_UMH }, INT_MIN, INT_MAX, VE, "motion-est" },
940 { "esa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_ESA }, INT_MIN, INT_MAX, VE, "motion-est" },
941 { "tesa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },
942 { "forced-idr", "If forcing keyframes, force them as IDR frames.", OFFSET(forced_idr), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
943 { "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 },
947 static const AVCodecDefault x264_defaults[] = {
952 { "i_qfactor", "-1" },
953 { "b_qfactor", "-1" },
959 // { "rc_lookahead", "-1" },
961 { "sc_threshold", "-1" },
964 { "me_range", "-1" },
965 #if FF_API_MOTION_EST
966 { "me_method", "-1" },
969 { "b_strategy", "-1" },
970 { "keyint_min", "-1" },
973 { "threads", AV_STRINGIFY(X264_THREADS_AUTO) },
974 { "thread_type", "0" },
975 { "flags", "+cgop" },
976 { "rc_init_occupancy","-1" },
980 #if CONFIG_LIBX264_ENCODER
981 static const AVClass x264_class = {
982 .class_name = "libx264",
983 .item_name = av_default_item_name,
985 .version = LIBAVUTIL_VERSION_INT,
988 static const AVClass rgbclass = {
989 .class_name = "libx264rgb",
990 .item_name = av_default_item_name,
992 .version = LIBAVUTIL_VERSION_INT,
995 AVCodec ff_libx264_encoder = {
997 .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
998 .type = AVMEDIA_TYPE_VIDEO,
999 .id = AV_CODEC_ID_H264,
1000 .priv_data_size = sizeof(X264Context),
1002 .encode2 = X264_frame,
1003 .close = X264_close,
1004 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
1005 .priv_class = &x264_class,
1006 .defaults = x264_defaults,
1007 .init_static_data = X264_init_static,
1008 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
1009 FF_CODEC_CAP_INIT_CLEANUP,
1012 AVCodec ff_libx264rgb_encoder = {
1013 .name = "libx264rgb",
1014 .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),
1015 .type = AVMEDIA_TYPE_VIDEO,
1016 .id = AV_CODEC_ID_H264,
1017 .priv_data_size = sizeof(X264Context),
1019 .encode2 = X264_frame,
1020 .close = X264_close,
1021 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
1022 .priv_class = &rgbclass,
1023 .defaults = x264_defaults,
1024 .pix_fmts = pix_fmts_8bit_rgb,
1028 #if CONFIG_LIBX262_ENCODER
1029 static const AVClass X262_class = {
1030 .class_name = "libx262",
1031 .item_name = av_default_item_name,
1033 .version = LIBAVUTIL_VERSION_INT,
1036 AVCodec ff_libx262_encoder = {
1038 .long_name = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),
1039 .type = AVMEDIA_TYPE_VIDEO,
1040 .id = AV_CODEC_ID_MPEG2VIDEO,
1041 .priv_data_size = sizeof(X264Context),
1043 .encode2 = X264_frame,
1044 .close = X264_close,
1045 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
1046 .priv_class = &X262_class,
1047 .defaults = x264_defaults,
1048 .pix_fmts = pix_fmts_8bit,
1049 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
1050 FF_CODEC_CAP_INIT_CLEANUP,