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FFmpeg/libavcodec/libx264.c

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  1. /*

  2.  * H.264 encoding using the x264 library

  3.  * Copyright (C) 2005  Mans Rullgard <mans@mansr.com>

  4.  *

  5.  * This file is part of FFmpeg.

  6.  *

  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.

  11.  *

  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.

  16.  *

  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

  20.  */

  21. 

  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"

  29. #include "avcodec.h"

  30. #include "internal.h"

  31. 

  32. #if defined(_MSC_VER)

  33. #define X264_API_IMPORTS 1

  34. #endif

  35. 

  36. #include <x264.h>

  37. #include <float.h>

  38. #include <math.h>

  39. #include <stdio.h>

  40. #include <stdlib.h>

  41. #include <string.h>

  42. 

  43. // from x264.h, for quant_offsets, Macroblocks are 16x16

  44. // blocks of pixels (with respect to the luma plane)

  45. #define MB_SIZE 16

  46. 

  47. typedef struct X264Context {

  48.     AVClass        *class;

  49.     x264_param_t    params;

  50.     x264_t         *enc;

  51.     x264_picture_t  pic;

  52.     uint8_t        *sei;

  53.     int             sei_size;

  54.     char *preset;

  55.     char *tune;

  56.     char *profile;

  57.     char *level;

  58.     int fastfirstpass;

  59.     char *wpredp;

  60.     char *x264opts;

  61.     float crf;

  62.     float crf_max;

  63.     int cqp;

  64.     int aq_mode;

  65.     float aq_strength;

  66.     char *psy_rd;

  67.     int psy;

  68.     int rc_lookahead;

  69.     int weightp;

  70.     int weightb;

  71.     int ssim;

  72.     int intra_refresh;

  73.     int bluray_compat;

  74.     int b_bias;

  75.     int b_pyramid;

  76.     int mixed_refs;

  77.     int dct8x8;

  78.     int fast_pskip;

  79.     int aud;

  80.     int mbtree;

  81.     char *deblock;

  82.     float cplxblur;

  83.     char *partitions;

  84.     int direct_pred;

  85.     int slice_max_size;

  86.     char *stats;

  87.     int nal_hrd;

  88.     int avcintra_class;

  89.     int motion_est;

  90.     int forced_idr;

  91.     int coder;

  92.     int a53_cc;

  93.     int b_frame_strategy;

  94.     int chroma_offset;

  95.     int scenechange_threshold;

  96.     int noise_reduction;

  97. 

  98.     char *x264_params;

  99. 

  100.     int nb_reordered_opaque, next_reordered_opaque;

  101.     int64_t *reordered_opaque;

  102. } X264Context;

  103. 

  104. static void X264_log(void *p, int level, const char *fmt, va_list args)

  105. {

  106.     static const int level_map[] = {

  107.         [X264_LOG_ERROR]   = AV_LOG_ERROR,

  108.         [X264_LOG_WARNING] = AV_LOG_WARNING,

  109.         [X264_LOG_INFO]    = AV_LOG_INFO,

  110.         [X264_LOG_DEBUG]   = AV_LOG_DEBUG

  111.     };

  112. 

  113.     if (level < 0 || level > X264_LOG_DEBUG)

  114.         return;

  115. 

  116.     av_vlog(p, level_map[level], fmt, args);

  117. }

  118. 

  119. 

  120. static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,

  121.                        const x264_nal_t *nals, int nnal)

  122. {

  123.     X264Context *x4 = ctx->priv_data;

  124.     uint8_t *p;

  125.     int i, size = x4->sei_size, ret;

  126. 

  127.     if (!nnal)

  128.         return 0;

  129. 

  130.     for (i = 0; i < nnal; i++)

  131.         size += nals[i].i_payload;

  132. 

  133.     if ((ret = ff_alloc_packet2(ctx, pkt, size, 0)) < 0)

  134.         return ret;

  135. 

  136.     p = pkt->data;

  137. 

  138.     /* Write the SEI as part of the first frame. */

  139.     if (x4->sei_size > 0 && nnal > 0) {

  140.         if (x4->sei_size > size) {

  141.             av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");

  142.             return -1;

  143.         }

  144.         memcpy(p, x4->sei, x4->sei_size);

  145.         p += x4->sei_size;

  146.         x4->sei_size = 0;

  147.         av_freep(&x4->sei);

  148.     }

  149. 

  150.     for (i = 0; i < nnal; i++){

  151.         memcpy(p, nals[i].p_payload, nals[i].i_payload);

  152.         p += nals[i].i_payload;

  153.     }

  154. 

  155.     return 1;

  156. }

  157. 

  158. static int avfmt2_num_planes(int avfmt)

  159. {

  160.     switch (avfmt) {

  161.     case AV_PIX_FMT_YUV420P:

  162.     case AV_PIX_FMT_YUVJ420P:

  163.     case AV_PIX_FMT_YUV420P9:

  164.     case AV_PIX_FMT_YUV420P10:

  165.     case AV_PIX_FMT_YUV444P:

  166.         return 3;

  167. 

  168.     case AV_PIX_FMT_BGR0:

  169.     case AV_PIX_FMT_BGR24:

  170.     case AV_PIX_FMT_RGB24:

  171.     case AV_PIX_FMT_GRAY8:

  172.     case AV_PIX_FMT_GRAY10:

  173.         return 1;

  174. 

  175.     default:

  176.         return 3;

  177.     }

  178. }

  179. 

  180. static void reconfig_encoder(AVCodecContext *ctx, const AVFrame *frame)

  181. {

  182.     X264Context *x4 = ctx->priv_data;

  183.     AVFrameSideData *side_data;

  184. 

  185. 

  186.   if (x4->avcintra_class < 0) {

  187.     if (x4->params.b_interlaced && x4->params.b_tff != frame->top_field_first) {

  188. 

  189.         x4->params.b_tff = frame->top_field_first;

  190.         x264_encoder_reconfig(x4->enc, &x4->params);

  191.     }

  192.     if (x4->params.vui.i_sar_height*ctx->sample_aspect_ratio.num != ctx->sample_aspect_ratio.den * x4->params.vui.i_sar_width) {

  193.         x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;

  194.         x4->params.vui.i_sar_width  = ctx->sample_aspect_ratio.num;

  195.         x264_encoder_reconfig(x4->enc, &x4->params);

  196.     }

  197. 

  198.     if (x4->params.rc.i_vbv_buffer_size != ctx->rc_buffer_size / 1000 ||

  199.         x4->params.rc.i_vbv_max_bitrate != ctx->rc_max_rate    / 1000) {

  200.         x4->params.rc.i_vbv_buffer_size = ctx->rc_buffer_size / 1000;

  201.         x4->params.rc.i_vbv_max_bitrate = ctx->rc_max_rate    / 1000;

  202.         x264_encoder_reconfig(x4->enc, &x4->params);

  203.     }

  204. 

  205.     if (x4->params.rc.i_rc_method == X264_RC_ABR &&

  206.         x4->params.rc.i_bitrate != ctx->bit_rate / 1000) {

  207.         x4->params.rc.i_bitrate = ctx->bit_rate / 1000;

  208.         x264_encoder_reconfig(x4->enc, &x4->params);

  209.     }

  210. 

  211.     if (x4->crf >= 0 &&

  212.         x4->params.rc.i_rc_method == X264_RC_CRF &&

  213.         x4->params.rc.f_rf_constant != x4->crf) {

  214.         x4->params.rc.f_rf_constant = x4->crf;

  215.         x264_encoder_reconfig(x4->enc, &x4->params);

  216.     }

  217. 

  218.     if (x4->params.rc.i_rc_method == X264_RC_CQP &&

  219.         x4->cqp >= 0 &&

  220.         x4->params.rc.i_qp_constant != x4->cqp) {

  221.         x4->params.rc.i_qp_constant = x4->cqp;

  222.         x264_encoder_reconfig(x4->enc, &x4->params);

  223.     }

  224. 

  225.     if (x4->crf_max >= 0 &&

  226.         x4->params.rc.f_rf_constant_max != x4->crf_max) {

  227.         x4->params.rc.f_rf_constant_max = x4->crf_max;

  228.         x264_encoder_reconfig(x4->enc, &x4->params);

  229.     }

  230.   }

  231. 

  232.     side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_STEREO3D);

  233.     if (side_data) {

  234.         AVStereo3D *stereo = (AVStereo3D *)side_data->data;

  235.         int fpa_type;

  236. 

  237.         switch (stereo->type) {

  238.         case AV_STEREO3D_CHECKERBOARD:

  239.             fpa_type = 0;

  240.             break;

  241.         case AV_STEREO3D_COLUMNS:

  242.             fpa_type = 1;

  243.             break;

  244.         case AV_STEREO3D_LINES:

  245.             fpa_type = 2;

  246.             break;

  247.         case AV_STEREO3D_SIDEBYSIDE:

  248.             fpa_type = 3;

  249.             break;

  250.         case AV_STEREO3D_TOPBOTTOM:

  251.             fpa_type = 4;

  252.             break;

  253.         case AV_STEREO3D_FRAMESEQUENCE:

  254.             fpa_type = 5;

  255.             break;

  256. #if X264_BUILD >= 145

  257.         case AV_STEREO3D_2D:

  258.             fpa_type = 6;

  259.             break;

  260. #endif

  261.         default:

  262.             fpa_type = -1;

  263.             break;

  264.         }

  265. 

  266.         /* Inverted mode is not supported by x264 */

  267.         if (stereo->flags & AV_STEREO3D_FLAG_INVERT) {

  268.             av_log(ctx, AV_LOG_WARNING,

  269.                    "Ignoring unsupported inverted stereo value %d\n", fpa_type);

  270.             fpa_type = -1;

  271.         }

  272. 

  273.         if (fpa_type != x4->params.i_frame_packing) {

  274.             x4->params.i_frame_packing = fpa_type;

  275.             x264_encoder_reconfig(x4->enc, &x4->params);

  276.         }

  277.     }

  278. }

  279. 

  280. static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,

  281.                       int *got_packet)

  282. {

  283.     X264Context *x4 = ctx->priv_data;

  284.     x264_nal_t *nal;

  285.     int nnal, i, ret;

  286.     x264_picture_t pic_out = {0};

  287.     int pict_type;

  288.     int64_t *out_opaque;

  289.     AVFrameSideData *sd;

  290. 

  291.     x264_picture_init( &x4->pic );

  292.     x4->pic.img.i_csp   = x4->params.i_csp;

  293. #if X264_BUILD >= 153

  294.     if (x4->params.i_bitdepth > 8)

  295. #else

  296.     if (x264_bit_depth > 8)

  297. #endif

  298.         x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;

  299.     x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);

  300. 

  301.     if (frame) {

  302.         for (i = 0; i < x4->pic.img.i_plane; i++) {

  303.             x4->pic.img.plane[i]    = frame->data[i];

  304.             x4->pic.img.i_stride[i] = frame->linesize[i];

  305.         }

  306. 

  307.         x4->pic.i_pts  = frame->pts;

  308. 

  309.         x4->reordered_opaque[x4->next_reordered_opaque] = frame->reordered_opaque;

  310.         x4->pic.opaque = &x4->reordered_opaque[x4->next_reordered_opaque];

  311.         x4->next_reordered_opaque++;

  312.         x4->next_reordered_opaque %= x4->nb_reordered_opaque;

  313. 

  314.         switch (frame->pict_type) {

  315.         case AV_PICTURE_TYPE_I:

  316.             x4->pic.i_type = x4->forced_idr > 0 ? X264_TYPE_IDR

  317.                                                 : X264_TYPE_KEYFRAME;

  318.             break;

  319.         case AV_PICTURE_TYPE_P:

  320.             x4->pic.i_type = X264_TYPE_P;

  321.             break;

  322.         case AV_PICTURE_TYPE_B:

  323.             x4->pic.i_type = X264_TYPE_B;

  324.             break;

  325.         default:

  326.             x4->pic.i_type = X264_TYPE_AUTO;

  327.             break;

  328.         }

  329.         reconfig_encoder(ctx, frame);

  330. 

  331.         if (x4->a53_cc) {

  332.             void *sei_data;

  333.             size_t sei_size;

  334. 

  335.             ret = ff_alloc_a53_sei(frame, 0, &sei_data, &sei_size);

  336.             if (ret < 0) {

  337.                 av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");

  338.             } else if (sei_data) {

  339.                 x4->pic.extra_sei.payloads = av_mallocz(sizeof(x4->pic.extra_sei.payloads[0]));

  340.                 if (x4->pic.extra_sei.payloads == NULL) {

  341.                     av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");

  342.                     av_free(sei_data);

  343.                 } else {

  344.                     x4->pic.extra_sei.sei_free = av_free;

  345. 

  346.                     x4->pic.extra_sei.payloads[0].payload_size = sei_size;

  347.                     x4->pic.extra_sei.payloads[0].payload = sei_data;

  348.                     x4->pic.extra_sei.num_payloads = 1;

  349.                     x4->pic.extra_sei.payloads[0].payload_type = 4;

  350.                 }

  351.             }

  352.         }

  353. 

  354.         sd = av_frame_get_side_data(frame, AV_FRAME_DATA_REGIONS_OF_INTEREST);

  355.         if (sd) {

  356.             if (x4->params.rc.i_aq_mode == X264_AQ_NONE) {

  357.                 av_log(ctx, AV_LOG_WARNING, "Adaptive quantization must be enabled to use ROI encoding, skipping ROI.\n");

  358.             } else {

  359.                 if (frame->interlaced_frame == 0) {

  360.                     int mbx = (frame->width + MB_SIZE - 1) / MB_SIZE;

  361.                     int mby = (frame->height + MB_SIZE - 1) / MB_SIZE;

  362.                     int nb_rois;

  363.                     AVRegionOfInterest* roi;

  364.                     float* qoffsets;

  365.                     qoffsets = av_mallocz_array(mbx * mby, sizeof(*qoffsets));

  366.                     if (!qoffsets)

  367.                         return AVERROR(ENOMEM);

  368. 

  369.                     nb_rois = sd->size / sizeof(AVRegionOfInterest);

  370.                     roi = (AVRegionOfInterest*)sd->data;

  371.                     for (int count = 0; count < nb_rois; count++) {

  372.                         int starty = FFMIN(mby, roi->top / MB_SIZE);

  373.                         int endy   = FFMIN(mby, (roi->bottom + MB_SIZE - 1)/ MB_SIZE);

  374.                         int startx = FFMIN(mbx, roi->left / MB_SIZE);

  375.                         int endx   = FFMIN(mbx, (roi->right + MB_SIZE - 1)/ MB_SIZE);

  376.                         float qoffset;

  377. 

  378.                         if (roi->qoffset.den == 0) {

  379.                             av_free(qoffsets);

  380.                             av_log(ctx, AV_LOG_ERROR, "AVRegionOfInterest.qoffset.den should not be zero.\n");

  381.                             return AVERROR(EINVAL);

  382.                         }

  383.                         qoffset = roi->qoffset.num * 1.0f / roi->qoffset.den;

  384.                         qoffset = av_clipf(qoffset, -1.0f, 1.0f);

  385. 

  386.                         // 25 is a number that I think it is a possible proper scale value.

  387.                         qoffset = qoffset * 25;

  388. 

  389.                         for (int y = starty; y < endy; y++) {

  390.                             for (int x = startx; x < endx; x++) {

  391.                                 qoffsets[x + y*mbx] = qoffset;

  392.                             }

  393.                         }

  394. 

  395.                         if (roi->self_size == 0) {

  396.                             av_free(qoffsets);

  397.                             av_log(ctx, AV_LOG_ERROR, "AVRegionOfInterest.self_size should be set to sizeof(AVRegionOfInterest).\n");

  398.                             return AVERROR(EINVAL);

  399.                         }

  400.                         roi = (AVRegionOfInterest*)((char*)roi + roi->self_size);

  401.                     }

  402. 

  403.                     x4->pic.prop.quant_offsets = qoffsets;

  404.                     x4->pic.prop.quant_offsets_free = av_free;

  405.                 } else {

  406.                     av_log(ctx, AV_LOG_WARNING, "interlaced_frame not supported for ROI encoding yet, skipping ROI.\n");

  407.                 }

  408.             }

  409.         }

  410.     }

  411. 

  412.     do {

  413.         if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)

  414.             return AVERROR_EXTERNAL;

  415. 

  416.         ret = encode_nals(ctx, pkt, nal, nnal);

  417.         if (ret < 0)

  418.             return ret;

  419.     } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));

  420. 

  421.     pkt->pts = pic_out.i_pts;

  422.     pkt->dts = pic_out.i_dts;

  423. 

  424.     out_opaque = pic_out.opaque;

  425.     if (out_opaque >= x4->reordered_opaque &&

  426.         out_opaque < &x4->reordered_opaque[x4->nb_reordered_opaque]) {

  427.         ctx->reordered_opaque = *out_opaque;

  428.     } else {

  429.         // Unexpected opaque pointer on picture output

  430.         ctx->reordered_opaque = 0;

  431.     }

  432. 

  433.     switch (pic_out.i_type) {

  434.     case X264_TYPE_IDR:

  435.     case X264_TYPE_I:

  436.         pict_type = AV_PICTURE_TYPE_I;

  437.         break;

  438.     case X264_TYPE_P:

  439.         pict_type = AV_PICTURE_TYPE_P;

  440.         break;

  441.     case X264_TYPE_B:

  442.     case X264_TYPE_BREF:

  443.         pict_type = AV_PICTURE_TYPE_B;

  444.         break;

  445.     default:

  446.         pict_type = AV_PICTURE_TYPE_NONE;

  447.     }

  448. #if FF_API_CODED_FRAME

  449. FF_DISABLE_DEPRECATION_WARNINGS

  450.     ctx->coded_frame->pict_type = pict_type;

  451. FF_ENABLE_DEPRECATION_WARNINGS

  452. #endif

  453. 

  454.     pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;

  455.     if (ret) {

  456.         ff_side_data_set_encoder_stats(pkt, (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA, NULL, 0, pict_type);

  457. 

  458. #if FF_API_CODED_FRAME

  459. FF_DISABLE_DEPRECATION_WARNINGS

  460.         ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;

  461. FF_ENABLE_DEPRECATION_WARNINGS

  462. #endif

  463.     }

  464. 

  465.     *got_packet = ret;

  466.     return 0;

  467. }

  468. 

  469. static av_cold int X264_close(AVCodecContext *avctx)

  470. {

  471.     X264Context *x4 = avctx->priv_data;

  472. 

  473.     av_freep(&avctx->extradata);

  474.     av_freep(&x4->sei);

  475.     av_freep(&x4->reordered_opaque);

  476. 

  477.     if (x4->enc) {

  478.         x264_encoder_close(x4->enc);

  479.         x4->enc = NULL;

  480.     }

  481. 

  482.     return 0;

  483. }

  484. 

  485. #define OPT_STR(opt, param)                                                   \

  486.     do {                                                                      \

  487.         int ret;                                                              \

  488.         if ((ret = x264_param_parse(&x4->params, opt, param)) < 0) { \

  489.             if(ret == X264_PARAM_BAD_NAME)                                    \

  490.                 av_log(avctx, AV_LOG_ERROR,                                   \

  491.                         "bad option '%s': '%s'\n", opt, param);               \

  492.             else                                                              \

  493.                 av_log(avctx, AV_LOG_ERROR,                                   \

  494.                         "bad value for '%s': '%s'\n", opt, param);            \

  495.             return -1;                                                        \

  496.         }                                                                     \

  497.     } while (0)

  498. 

  499. static int convert_pix_fmt(enum AVPixelFormat pix_fmt)

  500. {

  501.     switch (pix_fmt) {

  502.     case AV_PIX_FMT_YUV420P:

  503.     case AV_PIX_FMT_YUVJ420P:

  504.     case AV_PIX_FMT_YUV420P9:

  505.     case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;

  506.     case AV_PIX_FMT_YUV422P:

  507.     case AV_PIX_FMT_YUVJ422P:

  508.     case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;

  509.     case AV_PIX_FMT_YUV444P:

  510.     case AV_PIX_FMT_YUVJ444P:

  511.     case AV_PIX_FMT_YUV444P9:

  512.     case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;

  513. #if CONFIG_LIBX264RGB_ENCODER

  514.     case AV_PIX_FMT_BGR0:

  515.         return X264_CSP_BGRA;

  516.     case AV_PIX_FMT_BGR24:

  517.         return X264_CSP_BGR;

  518. 

  519.     case AV_PIX_FMT_RGB24:

  520.         return X264_CSP_RGB;

  521. #endif

  522.     case AV_PIX_FMT_NV12:      return X264_CSP_NV12;

  523.     case AV_PIX_FMT_NV16:

  524.     case AV_PIX_FMT_NV20:      return X264_CSP_NV16;

  525. #ifdef X264_CSP_NV21

  526.     case AV_PIX_FMT_NV21:      return X264_CSP_NV21;

  527. #endif

  528. #ifdef X264_CSP_I400

  529.     case AV_PIX_FMT_GRAY8:

  530.     case AV_PIX_FMT_GRAY10:    return X264_CSP_I400;

  531. #endif

  532.     };

  533.     return 0;

  534. }

  535. 

  536. #define PARSE_X264_OPT(name, var)\

  537.     if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\

  538.         av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\

  539.         return AVERROR(EINVAL);\

  540.     }

  541. 

  542. static av_cold int X264_init(AVCodecContext *avctx)

  543. {

  544.     X264Context *x4 = avctx->priv_data;

  545.     AVCPBProperties *cpb_props;

  546.     int sw,sh;

  547. 

  548.     if (avctx->global_quality > 0)

  549.         av_log(avctx, AV_LOG_WARNING, "-qscale is ignored, -crf is recommended.\n");

  550. 

  551. #if CONFIG_LIBX262_ENCODER

  552.     if (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO) {

  553.         x4->params.b_mpeg2 = 1;

  554.         x264_param_default_mpeg2(&x4->params);

  555.     } else

  556. #endif

  557.     x264_param_default(&x4->params);

  558. 

  559.     x4->params.b_deblocking_filter         = avctx->flags & AV_CODEC_FLAG_LOOP_FILTER;

  560. 

  561.     if (x4->preset || x4->tune)

  562.         if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {

  563.             int i;

  564.             av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);

  565.             av_log(avctx, AV_LOG_INFO, "Possible presets:");

  566.             for (i = 0; x264_preset_names[i]; i++)

  567.                 av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);

  568.             av_log(avctx, AV_LOG_INFO, "\n");

  569.             av_log(avctx, AV_LOG_INFO, "Possible tunes:");

  570.             for (i = 0; x264_tune_names[i]; i++)

  571.                 av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);

  572.             av_log(avctx, AV_LOG_INFO, "\n");

  573.             return AVERROR(EINVAL);

  574.         }

  575. 

  576.     if (avctx->level > 0)

  577.         x4->params.i_level_idc = avctx->level;

  578. 

  579.     x4->params.pf_log               = X264_log;

  580.     x4->params.p_log_private        = avctx;

  581.     x4->params.i_log_level          = X264_LOG_DEBUG;

  582.     x4->params.i_csp                = convert_pix_fmt(avctx->pix_fmt);

  583. #if X264_BUILD >= 153

  584.     x4->params.i_bitdepth           = av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth;

  585. #endif

  586. 

  587.     PARSE_X264_OPT("weightp", wpredp);

  588. 

  589.     if (avctx->bit_rate) {

  590.         x4->params.rc.i_bitrate   = avctx->bit_rate / 1000;

  591.         x4->params.rc.i_rc_method = X264_RC_ABR;

  592.     }

  593.     x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;

  594.     x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate    / 1000;

  595.     x4->params.rc.b_stat_write      = avctx->flags & AV_CODEC_FLAG_PASS1;

  596.     if (avctx->flags & AV_CODEC_FLAG_PASS2) {

  597.         x4->params.rc.b_stat_read = 1;

  598.     } else {

  599.         if (x4->crf >= 0) {

  600.             x4->params.rc.i_rc_method   = X264_RC_CRF;

  601.             x4->params.rc.f_rf_constant = x4->crf;

  602.         } else if (x4->cqp >= 0) {

  603.             x4->params.rc.i_rc_method   = X264_RC_CQP;

  604.             x4->params.rc.i_qp_constant = x4->cqp;

  605.         }

  606. 

  607.         if (x4->crf_max >= 0)

  608.             x4->params.rc.f_rf_constant_max = x4->crf_max;

  609.     }

  610. 

  611.     if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&

  612.         (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {

  613.         x4->params.rc.f_vbv_buffer_init =

  614.             (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;

  615.     }

  616. 

  617.     PARSE_X264_OPT("level", level);

  618. 

  619.     if (avctx->i_quant_factor > 0)

  620.         x4->params.rc.f_ip_factor         = 1 / fabs(avctx->i_quant_factor);

  621.     if (avctx->b_quant_factor > 0)

  622.         x4->params.rc.f_pb_factor         = avctx->b_quant_factor;

  623. 

  624. #if FF_API_PRIVATE_OPT

  625. FF_DISABLE_DEPRECATION_WARNINGS

  626.     if (avctx->chromaoffset >= 0)

  627.         x4->chroma_offset = avctx->chromaoffset;

  628. FF_ENABLE_DEPRECATION_WARNINGS

  629. #endif

  630.     if (x4->chroma_offset >= 0)

  631.         x4->params.analyse.i_chroma_qp_offset = x4->chroma_offset;

  632. 

  633.     if (avctx->gop_size >= 0)

  634.         x4->params.i_keyint_max         = avctx->gop_size;

  635.     if (avctx->max_b_frames >= 0)

  636.         x4->params.i_bframe             = avctx->max_b_frames;

  637. 

  638. #if FF_API_PRIVATE_OPT

  639. FF_DISABLE_DEPRECATION_WARNINGS

  640.     if (avctx->scenechange_threshold >= 0)

  641.         x4->scenechange_threshold = avctx->scenechange_threshold;

  642. FF_ENABLE_DEPRECATION_WARNINGS

  643. #endif

  644.     if (x4->scenechange_threshold >= 0)

  645.         x4->params.i_scenecut_threshold = x4->scenechange_threshold;

  646. 

  647.     if (avctx->qmin >= 0)

  648.         x4->params.rc.i_qp_min          = avctx->qmin;

  649.     if (avctx->qmax >= 0)

  650.         x4->params.rc.i_qp_max          = avctx->qmax;

  651.     if (avctx->max_qdiff >= 0)

  652.         x4->params.rc.i_qp_step         = avctx->max_qdiff;

  653.     if (avctx->qblur >= 0)

  654.         x4->params.rc.f_qblur           = avctx->qblur;     /* temporally blur quants */

  655.     if (avctx->qcompress >= 0)

  656.         x4->params.rc.f_qcompress       = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */

  657.     if (avctx->refs >= 0)

  658.         x4->params.i_frame_reference    = avctx->refs;

  659.     else if (x4->level) {

  660.         int i;

  661.         int mbn = AV_CEIL_RSHIFT(avctx->width, 4) * AV_CEIL_RSHIFT(avctx->height, 4);

  662.         int level_id = -1;

  663.         char *tail;

  664.         int scale = X264_BUILD < 129 ? 384 : 1;

  665. 

  666.         if (!strcmp(x4->level, "1b")) {

  667.             level_id = 9;

  668.         } else if (strlen(x4->level) <= 3){

  669.             level_id = av_strtod(x4->level, &tail) * 10 + 0.5;

  670.             if (*tail)

  671.                 level_id = -1;

  672.         }

  673.         if (level_id <= 0)

  674.             av_log(avctx, AV_LOG_WARNING, "Failed to parse level\n");

  675. 

  676.         for (i = 0; i<x264_levels[i].level_idc; i++)

  677.             if (x264_levels[i].level_idc == level_id)

  678.                 x4->params.i_frame_reference = av_clip(x264_levels[i].dpb / mbn / scale, 1, x4->params.i_frame_reference);

  679.     }

  680. 

  681.     if (avctx->trellis >= 0)

  682.         x4->params.analyse.i_trellis    = avctx->trellis;

  683.     if (avctx->me_range >= 0)

  684.         x4->params.analyse.i_me_range   = avctx->me_range;

  685. #if FF_API_PRIVATE_OPT

  686.     FF_DISABLE_DEPRECATION_WARNINGS

  687.     if (avctx->noise_reduction >= 0)

  688.         x4->noise_reduction = avctx->noise_reduction;

  689.     FF_ENABLE_DEPRECATION_WARNINGS

  690. #endif

  691.     if (x4->noise_reduction >= 0)

  692.         x4->params.analyse.i_noise_reduction = x4->noise_reduction;

  693.     if (avctx->me_subpel_quality >= 0)

  694.         x4->params.analyse.i_subpel_refine   = avctx->me_subpel_quality;

  695. #if FF_API_PRIVATE_OPT

  696. FF_DISABLE_DEPRECATION_WARNINGS

  697.     if (avctx->b_frame_strategy >= 0)

  698.         x4->b_frame_strategy = avctx->b_frame_strategy;

  699. FF_ENABLE_DEPRECATION_WARNINGS

  700. #endif

  701.     if (avctx->keyint_min >= 0)

  702.         x4->params.i_keyint_min = avctx->keyint_min;

  703. #if FF_API_CODER_TYPE

  704. FF_DISABLE_DEPRECATION_WARNINGS

  705.     if (avctx->coder_type >= 0)

  706.         x4->coder = avctx->coder_type == FF_CODER_TYPE_AC;

  707. FF_ENABLE_DEPRECATION_WARNINGS

  708. #endif

  709.     if (avctx->me_cmp >= 0)

  710.         x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;

  711. 

  712.     if (x4->aq_mode >= 0)

  713.         x4->params.rc.i_aq_mode = x4->aq_mode;

  714.     if (x4->aq_strength >= 0)

  715.         x4->params.rc.f_aq_strength = x4->aq_strength;

  716.     PARSE_X264_OPT("psy-rd", psy_rd);

  717.     PARSE_X264_OPT("deblock", deblock);

  718.     PARSE_X264_OPT("partitions", partitions);

  719.     PARSE_X264_OPT("stats", stats);

  720.     if (x4->psy >= 0)

  721.         x4->params.analyse.b_psy  = x4->psy;

  722.     if (x4->rc_lookahead >= 0)

  723.         x4->params.rc.i_lookahead = x4->rc_lookahead;

  724.     if (x4->weightp >= 0)

  725.         x4->params.analyse.i_weighted_pred = x4->weightp;

  726.     if (x4->weightb >= 0)

  727.         x4->params.analyse.b_weighted_bipred = x4->weightb;

  728.     if (x4->cplxblur >= 0)

  729.         x4->params.rc.f_complexity_blur = x4->cplxblur;

  730. 

  731.     if (x4->ssim >= 0)

  732.         x4->params.analyse.b_ssim = x4->ssim;

  733.     if (x4->intra_refresh >= 0)

  734.         x4->params.b_intra_refresh = x4->intra_refresh;

  735.     if (x4->bluray_compat >= 0) {

  736.         x4->params.b_bluray_compat = x4->bluray_compat;

  737.         x4->params.b_vfr_input = 0;

  738.     }

  739.     if (x4->avcintra_class >= 0)

  740. #if X264_BUILD >= 142

  741.         x4->params.i_avcintra_class = x4->avcintra_class;

  742. #else

  743.         av_log(avctx, AV_LOG_ERROR,

  744.                "x264 too old for AVC Intra, at least version 142 needed\n");

  745. #endif

  746.     if (x4->b_bias != INT_MIN)

  747.         x4->params.i_bframe_bias              = x4->b_bias;

  748.     if (x4->b_pyramid >= 0)

  749.         x4->params.i_bframe_pyramid = x4->b_pyramid;

  750.     if (x4->mixed_refs >= 0)

  751.         x4->params.analyse.b_mixed_references = x4->mixed_refs;

  752.     if (x4->dct8x8 >= 0)

  753.         x4->params.analyse.b_transform_8x8    = x4->dct8x8;

  754.     if (x4->fast_pskip >= 0)

  755.         x4->params.analyse.b_fast_pskip       = x4->fast_pskip;

  756.     if (x4->aud >= 0)

  757.         x4->params.b_aud                      = x4->aud;

  758.     if (x4->mbtree >= 0)

  759.         x4->params.rc.b_mb_tree               = x4->mbtree;

  760.     if (x4->direct_pred >= 0)

  761.         x4->params.analyse.i_direct_mv_pred   = x4->direct_pred;

  762. 

  763.     if (x4->slice_max_size >= 0)

  764.         x4->params.i_slice_max_size =  x4->slice_max_size;

  765. 

  766.     if (x4->fastfirstpass)

  767.         x264_param_apply_fastfirstpass(&x4->params);

  768. 

  769.     /* Allow specifying the x264 profile through AVCodecContext. */

  770.     if (!x4->profile)

  771.         switch (avctx->profile) {

  772.         case FF_PROFILE_H264_BASELINE:

  773.             x4->profile = av_strdup("baseline");

  774.             break;

  775.         case FF_PROFILE_H264_HIGH:

  776.             x4->profile = av_strdup("high");

  777.             break;

  778.         case FF_PROFILE_H264_HIGH_10:

  779.             x4->profile = av_strdup("high10");

  780.             break;

  781.         case FF_PROFILE_H264_HIGH_422:

  782.             x4->profile = av_strdup("high422");

  783.             break;

  784.         case FF_PROFILE_H264_HIGH_444:

  785.             x4->profile = av_strdup("high444");

  786.             break;

  787.         case FF_PROFILE_H264_MAIN:

  788.             x4->profile = av_strdup("main");

  789.             break;

  790.         default:

  791.             break;

  792.         }

  793. 

  794.     if (x4->nal_hrd >= 0)

  795.         x4->params.i_nal_hrd = x4->nal_hrd;

  796. 

  797.     if (x4->motion_est >= 0)

  798.         x4->params.analyse.i_me_method = x4->motion_est;

  799. 

  800.     if (x4->coder >= 0)

  801.         x4->params.b_cabac = x4->coder;

  802. 

  803.     if (x4->b_frame_strategy >= 0)

  804.         x4->params.i_bframe_adaptive = x4->b_frame_strategy;

  805. 

  806.     if (x4->profile)

  807.         if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {

  808.             int i;

  809.             av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);

  810.             av_log(avctx, AV_LOG_INFO, "Possible profiles:");

  811.             for (i = 0; x264_profile_names[i]; i++)

  812.                 av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);

  813.             av_log(avctx, AV_LOG_INFO, "\n");

  814.             return AVERROR(EINVAL);

  815.         }

  816. 

  817.     x4->params.i_width          = avctx->width;

  818.     x4->params.i_height         = avctx->height;

  819.     av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);

  820.     x4->params.vui.i_sar_width  = sw;

  821.     x4->params.vui.i_sar_height = sh;

  822.     x4->params.i_timebase_den = avctx->time_base.den;

  823.     x4->params.i_timebase_num = avctx->time_base.num;

  824.     if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {

  825.         x4->params.i_fps_num = avctx->framerate.num;

  826.         x4->params.i_fps_den = avctx->framerate.den;

  827.     } else {

  828.         x4->params.i_fps_num = avctx->time_base.den;

  829.         x4->params.i_fps_den = avctx->time_base.num * avctx->ticks_per_frame;

  830.     }

  831. 

  832.     x4->params.analyse.b_psnr = avctx->flags & AV_CODEC_FLAG_PSNR;

  833. 

  834.     x4->params.i_threads      = avctx->thread_count;

  835.     if (avctx->thread_type)

  836.         x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;

  837. 

  838.     x4->params.b_interlaced   = avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;

  839. 

  840.     x4->params.b_open_gop     = !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);

  841. 

  842.     x4->params.i_slice_count  = avctx->slices;

  843. 

  844.     x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||

  845.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||

  846.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||

  847.                                  avctx->color_range == AVCOL_RANGE_JPEG;

  848. 

  849.     if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED)

  850.         x4->params.vui.i_colmatrix = avctx->colorspace;

  851.     if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED)

  852.         x4->params.vui.i_colorprim = avctx->color_primaries;

  853.     if (avctx->color_trc != AVCOL_TRC_UNSPECIFIED)

  854.         x4->params.vui.i_transfer  = avctx->color_trc;

  855. 

  856.     if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)

  857.         x4->params.b_repeat_headers = 0;

  858. 

  859.     if(x4->x264opts){

  860.         const char *p= x4->x264opts;

  861.         while(p){

  862.             char param[4096]={0}, val[4096]={0};

  863.             if(sscanf(p, "%4095[^:=]=%4095[^:]", param, val) == 1){

  864.                 OPT_STR(param, "1");

  865.             }else

  866.                 OPT_STR(param, val);

  867.             p= strchr(p, ':');

  868.             p+=!!p;

  869.         }

  870.     }

  871. 

  872.     if (x4->x264_params) {

  873.         AVDictionary *dict    = NULL;

  874.         AVDictionaryEntry *en = NULL;

  875. 

  876.         if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) {

  877.             while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {

  878.                 if (x264_param_parse(&x4->params, en->key, en->value) < 0)

  879.                     av_log(avctx, AV_LOG_WARNING,

  880.                            "Error parsing option '%s = %s'.\n",

  881.                             en->key, en->value);

  882.             }

  883. 

  884.             av_dict_free(&dict);

  885.         }

  886.     }

  887. 

  888.     // update AVCodecContext with x264 parameters

  889.     avctx->has_b_frames = x4->params.i_bframe ?

  890.         x4->params.i_bframe_pyramid ? 2 : 1 : 0;

  891.     if (avctx->max_b_frames < 0)

  892.         avctx->max_b_frames = 0;

  893. 

  894.     avctx->bit_rate = x4->params.rc.i_bitrate*1000;

  895. 

  896.     x4->enc = x264_encoder_open(&x4->params);

  897.     if (!x4->enc)

  898.         return AVERROR_EXTERNAL;

  899. 

  900.     if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {

  901.         x264_nal_t *nal;

  902.         uint8_t *p;

  903.         int nnal, s, i;

  904. 

  905.         s = x264_encoder_headers(x4->enc, &nal, &nnal);

  906.         avctx->extradata = p = av_mallocz(s + AV_INPUT_BUFFER_PADDING_SIZE);

  907.         if (!p)

  908.             return AVERROR(ENOMEM);

  909. 

  910.         for (i = 0; i < nnal; i++) {

  911.             /* Don't put the SEI in extradata. */

  912.             if (nal[i].i_type == NAL_SEI) {

  913.                 av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);

  914.                 x4->sei_size = nal[i].i_payload;

  915.                 x4->sei      = av_malloc(x4->sei_size);

  916.                 if (!x4->sei)

  917.                     return AVERROR(ENOMEM);

  918.                 memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);

  919.                 continue;

  920.             }

  921.             memcpy(p, nal[i].p_payload, nal[i].i_payload);

  922.             p += nal[i].i_payload;

  923.         }

  924.         avctx->extradata_size = p - avctx->extradata;

  925.     }

  926. 

  927.     cpb_props = ff_add_cpb_side_data(avctx);

  928.     if (!cpb_props)

  929.         return AVERROR(ENOMEM);

  930.     cpb_props->buffer_size = x4->params.rc.i_vbv_buffer_size * 1000;

  931.     cpb_props->max_bitrate = x4->params.rc.i_vbv_max_bitrate * 1000;

  932.     cpb_props->avg_bitrate = x4->params.rc.i_bitrate         * 1000;

  933. 

  934.     // Overestimate the reordered opaque buffer size, in case a runtime

  935.     // reconfigure would increase the delay (which it shouldn't).

  936.     x4->nb_reordered_opaque = x264_encoder_maximum_delayed_frames(x4->enc) + 17;

  937.     x4->reordered_opaque    = av_malloc_array(x4->nb_reordered_opaque,

  938.                                               sizeof(*x4->reordered_opaque));

  939.     if (!x4->reordered_opaque)

  940.         return AVERROR(ENOMEM);

  941. 

  942.     return 0;

  943. }

  944. 

  945. static const enum AVPixelFormat pix_fmts_8bit[] = {

  946.     AV_PIX_FMT_YUV420P,

  947.     AV_PIX_FMT_YUVJ420P,

  948.     AV_PIX_FMT_YUV422P,

  949.     AV_PIX_FMT_YUVJ422P,

  950.     AV_PIX_FMT_YUV444P,

  951.     AV_PIX_FMT_YUVJ444P,

  952.     AV_PIX_FMT_NV12,

  953.     AV_PIX_FMT_NV16,

  954. #ifdef X264_CSP_NV21

  955.     AV_PIX_FMT_NV21,

  956. #endif

  957.     AV_PIX_FMT_NONE

  958. };

  959. static const enum AVPixelFormat pix_fmts_9bit[] = {

  960.     AV_PIX_FMT_YUV420P9,

  961.     AV_PIX_FMT_YUV444P9,

  962.     AV_PIX_FMT_NONE

  963. };

  964. static const enum AVPixelFormat pix_fmts_10bit[] = {

  965.     AV_PIX_FMT_YUV420P10,

  966.     AV_PIX_FMT_YUV422P10,

  967.     AV_PIX_FMT_YUV444P10,

  968.     AV_PIX_FMT_NV20,

  969.     AV_PIX_FMT_NONE

  970. };

  971. static const enum AVPixelFormat pix_fmts_all[] = {

  972.     AV_PIX_FMT_YUV420P,

  973.     AV_PIX_FMT_YUVJ420P,

  974.     AV_PIX_FMT_YUV422P,

  975.     AV_PIX_FMT_YUVJ422P,

  976.     AV_PIX_FMT_YUV444P,

  977.     AV_PIX_FMT_YUVJ444P,

  978.     AV_PIX_FMT_NV12,

  979.     AV_PIX_FMT_NV16,

  980. #ifdef X264_CSP_NV21

  981.     AV_PIX_FMT_NV21,

  982. #endif

  983.     AV_PIX_FMT_YUV420P10,

  984.     AV_PIX_FMT_YUV422P10,

  985.     AV_PIX_FMT_YUV444P10,

  986.     AV_PIX_FMT_NV20,

  987. #ifdef X264_CSP_I400

  988.     AV_PIX_FMT_GRAY8,

  989.     AV_PIX_FMT_GRAY10,

  990. #endif

  991.     AV_PIX_FMT_NONE

  992. };

  993. #if CONFIG_LIBX264RGB_ENCODER

  994. static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {

  995.     AV_PIX_FMT_BGR0,

  996.     AV_PIX_FMT_BGR24,

  997.     AV_PIX_FMT_RGB24,

  998.     AV_PIX_FMT_NONE

  999. };

  1000. #endif

  1001. 

  1002. static av_cold void X264_init_static(AVCodec *codec)

  1003. {

  1004. #if X264_BUILD < 153

  1005.     if (x264_bit_depth == 8)

  1006.         codec->pix_fmts = pix_fmts_8bit;

  1007.     else if (x264_bit_depth == 9)

  1008.         codec->pix_fmts = pix_fmts_9bit;

  1009.     else if (x264_bit_depth == 10)

  1010.         codec->pix_fmts = pix_fmts_10bit;

  1011. #else

  1012.     codec->pix_fmts = pix_fmts_all;

  1013. #endif

  1014. }

  1015. 

  1016. #define OFFSET(x) offsetof(X264Context, x)

  1017. #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

  1018. static const AVOption options[] = {

  1019.     { "preset",        "Set the encoding preset (cf. x264 --fullhelp)",   OFFSET(preset),        AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},

  1020.     { "tune",          "Tune the encoding params (cf. x264 --fullhelp)",  OFFSET(tune),          AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

  1021.     { "profile",       "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile),       AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

  1022.     { "fastfirstpass", "Use fast settings when encoding first pass",      OFFSET(fastfirstpass), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE},

  1023.     {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1024.     {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1025.     {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1026.     {"a53cc",          "Use A53 Closed Captions (if available)",          OFFSET(a53_cc),        AV_OPT_TYPE_BOOL,   {.i64 = 1}, 0, 1, VE},

  1027.     {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1028.     { "crf",           "Select the quality for constant quality mode",    OFFSET(crf),           AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE },

  1029.     { "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 },

  1030.     { "qp",            "Constant quantization parameter rate control method",OFFSET(cqp),        AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE },

  1031.     { "aq-mode",       "AQ method",                                       OFFSET(aq_mode),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},

  1032.     { "none",          NULL,                              0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE},         INT_MIN, INT_MAX, VE, "aq_mode" },

  1033.     { "variance",      "Variance AQ (complexity mask)",   0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE},     INT_MIN, INT_MAX, VE, "aq_mode" },

  1034.     { "autovariance",  "Auto-variance AQ",                0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },

  1035. #if X264_BUILD >= 144

  1036.     { "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" },

  1037. #endif

  1038.     { "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},

  1039.     { "psy",           "Use psychovisual optimizations.",                 OFFSET(psy),           AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1040.     { "psy-rd",        "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING,  {0 }, 0, 0, VE},

  1041.     { "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 },

  1042.     { "weightb",       "Weighted prediction for B-frames.",               OFFSET(weightb),       AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1043.     { "weightp",       "Weighted prediction analysis method.",            OFFSET(weightp),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },

  1044.     { "none",          NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE},   INT_MIN, INT_MAX, VE, "weightp" },

  1045.     { "simple",        NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },

  1046.     { "smart",         NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART},  INT_MIN, INT_MAX, VE, "weightp" },

  1047.     { "ssim",          "Calculate and print SSIM stats.",                 OFFSET(ssim),          AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1048.     { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1049.     { "bluray-compat", "Bluray compatibility workarounds.",               OFFSET(bluray_compat) ,AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1050.     { "b-bias",        "Influences how often B-frames are used",          OFFSET(b_bias),        AV_OPT_TYPE_INT,    { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },

  1051.     { "b-pyramid",     "Keep some B-frames as references.",               OFFSET(b_pyramid),     AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },

  1052.     { "none",          NULL,                                  0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE},   INT_MIN, INT_MAX, VE, "b_pyramid" },

  1053.     { "strict",        "Strictly hierarchical pyramid",       0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },

  1054.     { "normal",        "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },

  1055.     { "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 },

  1056.     { "8x8dct",        "High profile 8x8 transform.",                     OFFSET(dct8x8),        AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1057.     { "fast-pskip",    NULL,                                              OFFSET(fast_pskip),    AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1058.     { "aud",           "Use access unit delimiters.",                     OFFSET(aud),           AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1059.     { "mbtree",        "Use macroblock tree ratecontrol.",                OFFSET(mbtree),        AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1060.     { "deblock",       "Loop filter parameters, in <alpha:beta> form.",   OFFSET(deblock),       AV_OPT_TYPE_STRING, { 0 },  0, 0, VE},

  1061.     { "cplxblur",      "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE},

  1062.     { "partitions",    "A comma-separated list of partitions to consider. "

  1063.                        "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

  1064.     { "direct-pred",   "Direct MV prediction mode",                       OFFSET(direct_pred),   AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },

  1065.     { "none",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE },     0, 0, VE, "direct-pred" },

  1066.     { "spatial",       NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL },  0, 0, VE, "direct-pred" },

  1067.     { "temporal",      NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },

  1068.     { "auto",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO },     0, 0, VE, "direct-pred" },

  1069.     { "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 },

  1070.     { "stats",         "Filename for 2 pass stats",                       OFFSET(stats),         AV_OPT_TYPE_STRING, { 0 },  0,       0, VE },

  1071.     { "nal-hrd",       "Signal HRD information (requires vbv-bufsize; "

  1072.                        "cbr not allowed in .mp4)",                        OFFSET(nal_hrd),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },

  1073.     { "none",          NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },

  1074.     { "vbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },

  1075.     { "cbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },

  1076.     { "avcintra-class","AVC-Intra class 50/100/200",                      OFFSET(avcintra_class),AV_OPT_TYPE_INT,     { .i64 = -1 }, -1, 200   , VE},

  1077.     { "me_method",    "Set motion estimation method",                     OFFSET(motion_est),    AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},

  1078.     { "motion-est",   "Set motion estimation method",                     OFFSET(motion_est),    AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},

  1079.     { "dia",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_DIA },  INT_MIN, INT_MAX, VE, "motion-est" },

  1080.     { "hex",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_HEX },  INT_MIN, INT_MAX, VE, "motion-est" },

  1081.     { "umh",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_UMH },  INT_MIN, INT_MAX, VE, "motion-est" },

  1082.     { "esa",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_ESA },  INT_MIN, INT_MAX, VE, "motion-est" },

  1083.     { "tesa",          NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },

  1084.     { "forced-idr",   "If forcing keyframes, force them as IDR frames.",                                  OFFSET(forced_idr),  AV_OPT_TYPE_BOOL,   { .i64 = 0 }, -1, 1, VE },

  1085.     { "coder",    "Coder type",                                           OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE, "coder" },

  1086.     { "default",          NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, INT_MIN, INT_MAX, VE, "coder" },

  1087.     { "cavlc",            NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 },  INT_MIN, INT_MAX, VE, "coder" },

  1088.     { "cabac",            NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 },  INT_MIN, INT_MAX, VE, "coder" },

  1089.     { "vlc",              NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 },  INT_MIN, INT_MAX, VE, "coder" },

  1090.     { "ac",               NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 },  INT_MIN, INT_MAX, VE, "coder" },

  1091.     { "b_strategy",   "Strategy to choose between I/P/B-frames",          OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, VE },

  1092.     { "chromaoffset", "QP difference between chroma and luma",            OFFSET(chroma_offset), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },

  1093.     { "sc_threshold", "Scene change threshold",                           OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },

  1094.     { "noise_reduction", "Noise reduction",                               OFFSET(noise_reduction), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },

  1095. 

  1096.     { "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 },

  1097.     { NULL },

  1098. };

  1099. 

  1100. static const AVCodecDefault x264_defaults[] = {

  1101.     { "b",                "0" },

  1102.     { "bf",               "-1" },

  1103.     { "flags2",           "0" },

  1104.     { "g",                "-1" },

  1105.     { "i_qfactor",        "-1" },

  1106.     { "b_qfactor",        "-1" },

  1107.     { "qmin",             "-1" },

  1108.     { "qmax",             "-1" },

  1109.     { "qdiff",            "-1" },

  1110.     { "qblur",            "-1" },

  1111.     { "qcomp",            "-1" },

  1112. //     { "rc_lookahead",     "-1" },

  1113.     { "refs",             "-1" },

  1114. #if FF_API_PRIVATE_OPT

  1115.     { "sc_threshold",     "-1" },

  1116. #endif

  1117.     { "trellis",          "-1" },

  1118. #if FF_API_PRIVATE_OPT

  1119.     { "nr",               "-1" },

  1120. #endif

  1121.     { "me_range",         "-1" },

  1122.     { "subq",             "-1" },

  1123. #if FF_API_PRIVATE_OPT

  1124.     { "b_strategy",       "-1" },

  1125. #endif

  1126.     { "keyint_min",       "-1" },

  1127. #if FF_API_CODER_TYPE

  1128.     { "coder",            "-1" },

  1129. #endif

  1130.     { "cmp",              "-1" },

  1131.     { "threads",          AV_STRINGIFY(X264_THREADS_AUTO) },

  1132.     { "thread_type",      "0" },

  1133.     { "flags",            "+cgop" },

  1134.     { "rc_init_occupancy","-1" },

  1135.     { NULL },

  1136. };

  1137. 

  1138. #if CONFIG_LIBX264_ENCODER

  1139. static const AVClass x264_class = {

  1140.     .class_name = "libx264",

  1141.     .item_name  = av_default_item_name,

  1142.     .option     = options,

  1143.     .version    = LIBAVUTIL_VERSION_INT,

  1144. };

  1145. 

  1146. AVCodec ff_libx264_encoder = {

  1147.     .name             = "libx264",

  1148.     .long_name        = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),

  1149.     .type             = AVMEDIA_TYPE_VIDEO,

  1150.     .id               = AV_CODEC_ID_H264,

  1151.     .priv_data_size   = sizeof(X264Context),

  1152.     .init             = X264_init,

  1153.     .encode2          = X264_frame,

  1154.     .close            = X264_close,

  1155.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |

  1156.                         AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,

  1157.     .priv_class       = &x264_class,

  1158.     .defaults         = x264_defaults,

  1159.     .init_static_data = X264_init_static,

  1160.     .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP,

  1161.     .wrapper_name     = "libx264",

  1162. };

  1163. #endif

  1164. 

  1165. #if CONFIG_LIBX264RGB_ENCODER

  1166. static const AVClass rgbclass = {

  1167.     .class_name = "libx264rgb",

  1168.     .item_name  = av_default_item_name,

  1169.     .option     = options,

  1170.     .version    = LIBAVUTIL_VERSION_INT,

  1171. };

  1172. 

  1173. AVCodec ff_libx264rgb_encoder = {

  1174.     .name           = "libx264rgb",

  1175.     .long_name      = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),

  1176.     .type           = AVMEDIA_TYPE_VIDEO,

  1177.     .id             = AV_CODEC_ID_H264,

  1178.     .priv_data_size = sizeof(X264Context),

  1179.     .init           = X264_init,

  1180.     .encode2        = X264_frame,

  1181.     .close          = X264_close,

  1182.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |

  1183.                       AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,

  1184.     .priv_class     = &rgbclass,

  1185.     .defaults       = x264_defaults,

  1186.     .pix_fmts       = pix_fmts_8bit_rgb,

  1187.     .wrapper_name   = "libx264",

  1188. };

  1189. #endif

  1190. 

  1191. #if CONFIG_LIBX262_ENCODER

  1192. static const AVClass X262_class = {

  1193.     .class_name = "libx262",

  1194.     .item_name  = av_default_item_name,

  1195.     .option     = options,

  1196.     .version    = LIBAVUTIL_VERSION_INT,

  1197. };

  1198. 

  1199. AVCodec ff_libx262_encoder = {

  1200.     .name             = "libx262",

  1201.     .long_name        = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),

  1202.     .type             = AVMEDIA_TYPE_VIDEO,

  1203.     .id               = AV_CODEC_ID_MPEG2VIDEO,

  1204.     .priv_data_size   = sizeof(X264Context),

  1205.     .init             = X264_init,

  1206.     .encode2          = X264_frame,

  1207.     .close            = X264_close,

  1208.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |

  1209.                         AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,

  1210.     .priv_class       = &X262_class,

  1211.     .defaults         = x264_defaults,

  1212.     .pix_fmts         = pix_fmts_8bit,

  1213.     .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP,

  1214.     .wrapper_name     = "libx264",

  1215. };

  1216. #endif