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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 "avcodec.h"
  29. #include "internal.h"
  30.  
  31. #if defined(_MSC_VER)
  32. #define X264_API_IMPORTS 1
  33. #endif
  34.  
  35. #include <x264.h>
  36. #include <float.h>
  37. #include <math.h>
  38. #include <stdio.h>
  39. #include <stdlib.h>
  40. #include <string.h>
  41.  
  42. typedef struct X264Context {
  43.     AVClass        *class;
  44.     x264_param_t    params;
  45.     x264_t         *enc;
  46.     x264_picture_t  pic;
  47.     uint8_t        *sei;
  48.     int             sei_size;
  49.     char *preset;
  50.     char *tune;
  51.     char *profile;
  52.     char *level;
  53.     int fastfirstpass;
  54.     char *wpredp;
  55.     char *x264opts;
  56.     float crf;
  57.     float crf_max;
  58.     int cqp;
  59.     int aq_mode;
  60.     float aq_strength;
  61.     char *psy_rd;
  62.     int psy;
  63.     int rc_lookahead;
  64.     int weightp;
  65.     int weightb;
  66.     int ssim;
  67.     int intra_refresh;
  68.     int bluray_compat;
  69.     int b_bias;
  70.     int b_pyramid;
  71.     int mixed_refs;
  72.     int dct8x8;
  73.     int fast_pskip;
  74.     int aud;
  75.     int mbtree;
  76.     char *deblock;
  77.     float cplxblur;
  78.     char *partitions;
  79.     int direct_pred;
  80.     int slice_max_size;
  81.     char *stats;
  82.     int nal_hrd;
  83.     int avcintra_class;
  84.     int motion_est;
  85.     int forced_idr;
  86.     char *x264_params;
  87. } X264Context;
  88.  
  89. static void X264_log(void *p, int level, const char *fmt, va_list args)
  90. {
  91.     static const int level_map[] = {
  92.         [X264_LOG_ERROR]   = AV_LOG_ERROR,
  93.         [X264_LOG_WARNING] = AV_LOG_WARNING,
  94.         [X264_LOG_INFO]    = AV_LOG_INFO,
  95.         [X264_LOG_DEBUG]   = AV_LOG_DEBUG
  96.     };
  97.  
  98.     if (level < 0 || level > X264_LOG_DEBUG)
  99.         return;
  100.  
  101.     av_vlog(p, level_map[level], fmt, args);
  102. }
  103.  
  104.  
  105. static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,
  106.                        const x264_nal_t *nals, int nnal)
  107. {
  108.     X264Context *x4 = ctx->priv_data;
  109.     uint8_t *p;
  110.     int i, size = x4->sei_size, ret;
  111.  
  112.     if (!nnal)
  113.         return 0;
  114.  
  115.     for (i = 0; i < nnal; i++)
  116.         size += nals[i].i_payload;
  117.  
  118.     if ((ret = ff_alloc_packet2(ctx, pkt, size, 0)) < 0)
  119.         return ret;
  120.  
  121.     p = pkt->data;
  122.  
  123.     /* Write the SEI as part of the first frame. */
  124.     if (x4->sei_size > 0 && nnal > 0) {
  125.         if (x4->sei_size > size) {
  126.             av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");
  127.             return -1;
  128.         }
  129.         memcpy(p, x4->sei, x4->sei_size);
  130.         p += x4->sei_size;
  131.         x4->sei_size = 0;
  132.         av_freep(&x4->sei);
  133.     }
  134.  
  135.     for (i = 0; i < nnal; i++){
  136.         memcpy(p, nals[i].p_payload, nals[i].i_payload);
  137.         p += nals[i].i_payload;
  138.     }
  139.  
  140.     return 1;
  141. }
  142.  
  143. static int avfmt2_num_planes(int avfmt)
  144. {
  145.     switch (avfmt) {
  146.     case AV_PIX_FMT_YUV420P:
  147.     case AV_PIX_FMT_YUVJ420P:
  148.     case AV_PIX_FMT_YUV420P9:
  149.     case AV_PIX_FMT_YUV420P10:
  150.     case AV_PIX_FMT_YUV444P:
  151.         return 3;
  152.  
  153.     case AV_PIX_FMT_BGR0:
  154.     case AV_PIX_FMT_BGR24:
  155.     case AV_PIX_FMT_RGB24:
  156.         return 1;
  157.  
  158.     default:
  159.         return 3;
  160.     }
  161. }
  162.  
  163. static void reconfig_encoder(AVCodecContext *ctx, const AVFrame *frame)
  164. {
  165.     X264Context *x4 = ctx->priv_data;
  166.     AVFrameSideData *side_data;
  167.  
  168.  
  169.   if (x4->avcintra_class < 0) {
  170.     if (x4->params.b_interlaced && x4->params.b_tff != frame->top_field_first) {
  171.  
  172.         x4->params.b_tff = frame->top_field_first;
  173.         x264_encoder_reconfig(x4->enc, &x4->params);
  174.     }
  175.     if (x4->params.vui.i_sar_height*ctx->sample_aspect_ratio.num != ctx->sample_aspect_ratio.den * x4->params.vui.i_sar_width) {
  176.         x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
  177.         x4->params.vui.i_sar_width  = ctx->sample_aspect_ratio.num;
  178.         x264_encoder_reconfig(x4->enc, &x4->params);
  179.     }
  180.  
  181.     if (x4->params.rc.i_vbv_buffer_size != ctx->rc_buffer_size / 1000 ||
  182.         x4->params.rc.i_vbv_max_bitrate != ctx->rc_max_rate    / 1000) {
  183.         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.         x264_encoder_reconfig(x4->enc, &x4->params);
  186.     }
  187.  
  188.     if (x4->params.rc.i_rc_method == X264_RC_ABR &&
  189.         x4->params.rc.i_bitrate != ctx->bit_rate / 1000) {
  190.         x4->params.rc.i_bitrate = ctx->bit_rate / 1000;
  191.         x264_encoder_reconfig(x4->enc, &x4->params);
  192.     }
  193.  
  194.     if (x4->crf >= 0 &&
  195.         x4->params.rc.i_rc_method == X264_RC_CRF &&
  196.         x4->params.rc.f_rf_constant != x4->crf) {
  197.         x4->params.rc.f_rf_constant = x4->crf;
  198.         x264_encoder_reconfig(x4->enc, &x4->params);
  199.     }
  200.  
  201.     if (x4->params.rc.i_rc_method == X264_RC_CQP &&
  202.         x4->cqp >= 0 &&
  203.         x4->params.rc.i_qp_constant != x4->cqp) {
  204.         x4->params.rc.i_qp_constant = x4->cqp;
  205.         x264_encoder_reconfig(x4->enc, &x4->params);
  206.     }
  207.  
  208.     if (x4->crf_max >= 0 &&
  209.         x4->params.rc.f_rf_constant_max != x4->crf_max) {
  210.         x4->params.rc.f_rf_constant_max = x4->crf_max;
  211.         x264_encoder_reconfig(x4->enc, &x4->params);
  212.     }
  213.   }
  214.  
  215.     side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_STEREO3D);
  216.     if (side_data) {
  217.         AVStereo3D *stereo = (AVStereo3D *)side_data->data;
  218.         int fpa_type;
  219.  
  220.         switch (stereo->type) {
  221.         case AV_STEREO3D_CHECKERBOARD:
  222.             fpa_type = 0;
  223.             break;
  224.         case AV_STEREO3D_COLUMNS:
  225.             fpa_type = 1;
  226.             break;
  227.         case AV_STEREO3D_LINES:
  228.             fpa_type = 2;
  229.             break;
  230.         case AV_STEREO3D_SIDEBYSIDE:
  231.             fpa_type = 3;
  232.             break;
  233.         case AV_STEREO3D_TOPBOTTOM:
  234.             fpa_type = 4;
  235.             break;
  236.         case AV_STEREO3D_FRAMESEQUENCE:
  237.             fpa_type = 5;
  238.             break;
  239.         default:
  240.             fpa_type = -1;
  241.             break;
  242.         }
  243.  
  244.         if (fpa_type != x4->params.i_frame_packing) {
  245.             x4->params.i_frame_packing = fpa_type;
  246.             x264_encoder_reconfig(x4->enc, &x4->params);
  247.         }
  248.     }
  249. }
  250.  
  251. static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
  252.                       int *got_packet)
  253. {
  254.     X264Context *x4 = ctx->priv_data;
  255.     x264_nal_t *nal;
  256.     int nnal, i, ret;
  257.     x264_picture_t pic_out = {0};
  258.     int pict_type;
  259.  
  260.     x264_picture_init( &x4->pic );
  261.     x4->pic.img.i_csp   = x4->params.i_csp;
  262.     if (x264_bit_depth > 8)
  263.         x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;
  264.     x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);
  265.  
  266.     if (frame) {
  267.         for (i = 0; i < x4->pic.img.i_plane; i++) {
  268.             x4->pic.img.plane[i]    = frame->data[i];
  269.             x4->pic.img.i_stride[i] = frame->linesize[i];
  270.         }
  271.  
  272.         x4->pic.i_pts  = frame->pts;
  273.         x4->pic.i_type =
  274.             frame->pict_type == AV_PICTURE_TYPE_I ?
  275.                                 (x4->forced_idr >= 0 ? X264_TYPE_IDR : X264_TYPE_KEYFRAME) :
  276.             frame->pict_type == AV_PICTURE_TYPE_P ? X264_TYPE_P :
  277.             frame->pict_type == AV_PICTURE_TYPE_B ? X264_TYPE_B :
  278.                                             X264_TYPE_AUTO;
  279.  
  280.         reconfig_encoder(ctx, frame);
  281.     }
  282.     do {
  283.         if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
  284.             return AVERROR_EXTERNAL;
  285.  
  286.         ret = encode_nals(ctx, pkt, nal, nnal);
  287.         if (ret < 0)
  288.             return ret;
  289.     } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));
  290.  
  291.     pkt->pts = pic_out.i_pts;
  292.     pkt->dts = pic_out.i_dts;
  293.  
  294.  
  295.     switch (pic_out.i_type) {
  296.     case X264_TYPE_IDR:
  297.     case X264_TYPE_I:
  298.         pict_type = AV_PICTURE_TYPE_I;
  299.         break;
  300.     case X264_TYPE_P:
  301.         pict_type = AV_PICTURE_TYPE_P;
  302.         break;
  303.     case X264_TYPE_B:
  304.     case X264_TYPE_BREF:
  305.         pict_type = AV_PICTURE_TYPE_B;
  306.         break;
  307.     default:
  308.         pict_type = AV_PICTURE_TYPE_NONE;
  309.     }
  310. #if FF_API_CODED_FRAME
  311. FF_DISABLE_DEPRECATION_WARNINGS
  312.     ctx->coded_frame->pict_type = pict_type;
  313. FF_ENABLE_DEPRECATION_WARNINGS
  314. #endif
  315.  
  316.     pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;
  317.     if (ret) {
  318.         ff_side_data_set_encoder_stats(pkt, (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA, NULL, 0, pict_type);
  319.  
  320. #if FF_API_CODED_FRAME
  321. FF_DISABLE_DEPRECATION_WARNINGS
  322.         ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
  323. FF_ENABLE_DEPRECATION_WARNINGS
  324. #endif
  325.     }
  326.  
  327.     *got_packet = ret;
  328.     return 0;
  329. }
  330.  
  331. static av_cold int X264_close(AVCodecContext *avctx)
  332. {
  333.     X264Context *x4 = avctx->priv_data;
  334.  
  335.     av_freep(&avctx->extradata);
  336.     av_freep(&x4->sei);
  337.  
  338.     if (x4->enc) {
  339.         x264_encoder_close(x4->enc);
  340.         x4->enc = NULL;
  341.     }
  342.  
  343.     return 0;
  344. }
  345.  
  346. #define OPT_STR(opt, param)                                                   \
  347.     do {                                                                      \
  348.         int ret;                                                              \
  349.         if (param && (ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
  350.             if(ret == X264_PARAM_BAD_NAME)                                    \
  351.                 av_log(avctx, AV_LOG_ERROR,                                   \
  352.                         "bad option '%s': '%s'\n", opt, param);               \
  353.             else                                                              \
  354.                 av_log(avctx, AV_LOG_ERROR,                                   \
  355.                         "bad value for '%s': '%s'\n", opt, param);            \
  356.             return -1;                                                        \
  357.         }                                                                     \
  358.     } while (0)
  359.  
  360. static int convert_pix_fmt(enum AVPixelFormat pix_fmt)
  361. {
  362.     switch (pix_fmt) {
  363.     case AV_PIX_FMT_YUV420P:
  364.     case AV_PIX_FMT_YUVJ420P:
  365.     case AV_PIX_FMT_YUV420P9:
  366.     case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;
  367.     case AV_PIX_FMT_YUV422P:
  368.     case AV_PIX_FMT_YUVJ422P:
  369.     case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;
  370.     case AV_PIX_FMT_YUV444P:
  371.     case AV_PIX_FMT_YUVJ444P:
  372.     case AV_PIX_FMT_YUV444P9:
  373.     case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;
  374. #ifdef X264_CSP_BGR
  375.     case AV_PIX_FMT_BGR0:
  376.         return X264_CSP_BGRA;
  377.     case AV_PIX_FMT_BGR24:
  378.         return X264_CSP_BGR;
  379.  
  380.     case AV_PIX_FMT_RGB24:
  381.         return X264_CSP_RGB;
  382. #endif
  383.     case AV_PIX_FMT_NV12:      return X264_CSP_NV12;
  384.     case AV_PIX_FMT_NV16:
  385.     case AV_PIX_FMT_NV20:      return X264_CSP_NV16;
  386. #ifdef X264_CSP_NV21
  387.     case AV_PIX_FMT_NV21:      return X264_CSP_NV21;
  388. #endif
  389.     };
  390.     return 0;
  391. }
  392.  
  393. #define PARSE_X264_OPT(name, var)\
  394.     if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
  395.         av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
  396.         return AVERROR(EINVAL);\
  397.     }
  398.  
  399. static av_cold int X264_init(AVCodecContext *avctx)
  400. {
  401.     X264Context *x4 = avctx->priv_data;
  402.     int sw,sh;
  403.  
  404.     if (avctx->global_quality > 0)
  405.         av_log(avctx, AV_LOG_WARNING, "-qscale is ignored, -crf is recommended.\n");
  406.  
  407. #if CONFIG_LIBX262_ENCODER
  408.     if (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
  409.         x4->params.b_mpeg2 = 1;
  410.         x264_param_default_mpeg2(&x4->params);
  411.     } else
  412. #endif
  413.     x264_param_default(&x4->params);
  414.  
  415.     x4->params.b_deblocking_filter         = avctx->flags & AV_CODEC_FLAG_LOOP_FILTER;
  416.  
  417.     if (x4->preset || x4->tune)
  418.         if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
  419.             int i;
  420.             av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
  421.             av_log(avctx, AV_LOG_INFO, "Possible presets:");
  422.             for (i = 0; x264_preset_names[i]; i++)
  423.                 av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);
  424.             av_log(avctx, AV_LOG_INFO, "\n");
  425.             av_log(avctx, AV_LOG_INFO, "Possible tunes:");
  426.             for (i = 0; x264_tune_names[i]; i++)
  427.                 av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);
  428.             av_log(avctx, AV_LOG_INFO, "\n");
  429.             return AVERROR(EINVAL);
  430.         }
  431.  
  432.     if (avctx->level > 0)
  433.         x4->params.i_level_idc = avctx->level;
  434.  
  435.     x4->params.pf_log               = X264_log;
  436.     x4->params.p_log_private        = avctx;
  437.     x4->params.i_log_level          = X264_LOG_DEBUG;
  438.     x4->params.i_csp                = convert_pix_fmt(avctx->pix_fmt);
  439.  
  440.     OPT_STR("weightp", x4->wpredp);
  441.  
  442.     if (avctx->bit_rate) {
  443.         x4->params.rc.i_bitrate   = avctx->bit_rate / 1000;
  444.         x4->params.rc.i_rc_method = X264_RC_ABR;
  445.     }
  446.     x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
  447.     x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate    / 1000;
  448.     x4->params.rc.b_stat_write      = avctx->flags & AV_CODEC_FLAG_PASS1;
  449.     if (avctx->flags & AV_CODEC_FLAG_PASS2) {
  450.         x4->params.rc.b_stat_read = 1;
  451.     } else {
  452.         if (x4->crf >= 0) {
  453.             x4->params.rc.i_rc_method   = X264_RC_CRF;
  454.             x4->params.rc.f_rf_constant = x4->crf;
  455.         } else if (x4->cqp >= 0) {
  456.             x4->params.rc.i_rc_method   = X264_RC_CQP;
  457.             x4->params.rc.i_qp_constant = x4->cqp;
  458.         }
  459.  
  460.         if (x4->crf_max >= 0)
  461.             x4->params.rc.f_rf_constant_max = x4->crf_max;
  462.     }
  463.  
  464.     if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&
  465.         (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
  466.         x4->params.rc.f_vbv_buffer_init =
  467.             (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
  468.     }
  469.  
  470.     OPT_STR("level", x4->level);
  471.  
  472.     if (avctx->i_quant_factor > 0)
  473.         x4->params.rc.f_ip_factor         = 1 / fabs(avctx->i_quant_factor);
  474.     if (avctx->b_quant_factor > 0)
  475.         x4->params.rc.f_pb_factor         = avctx->b_quant_factor;
  476.     if (avctx->chromaoffset)
  477.         x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
  478.  
  479.     if (avctx->gop_size >= 0)
  480.         x4->params.i_keyint_max         = avctx->gop_size;
  481.     if (avctx->max_b_frames >= 0)
  482.         x4->params.i_bframe             = avctx->max_b_frames;
  483.     if (avctx->scenechange_threshold >= 0)
  484.         x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
  485.     if (avctx->qmin >= 0)
  486.         x4->params.rc.i_qp_min          = avctx->qmin;
  487.     if (avctx->qmax >= 0)
  488.         x4->params.rc.i_qp_max          = avctx->qmax;
  489.     if (avctx->max_qdiff >= 0)
  490.         x4->params.rc.i_qp_step         = avctx->max_qdiff;
  491.     if (avctx->qblur >= 0)
  492.         x4->params.rc.f_qblur           = avctx->qblur;     /* temporally blur quants */
  493.     if (avctx->qcompress >= 0)
  494.         x4->params.rc.f_qcompress       = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
  495.     if (avctx->refs >= 0)
  496.         x4->params.i_frame_reference    = avctx->refs;
  497.     else if (x4->level) {
  498.         int i;
  499.         int mbn = FF_CEIL_RSHIFT(avctx->width, 4) * FF_CEIL_RSHIFT(avctx->height, 4);
  500.         int level_id = -1;
  501.         char *tail;
  502.         int scale = X264_BUILD < 129 ? 384 : 1;
  503.  
  504.         if (!strcmp(x4->level, "1b")) {
  505.             level_id = 9;
  506.         } else if (strlen(x4->level) <= 3){
  507.             level_id = av_strtod(x4->level, &tail) * 10 + 0.5;
  508.             if (*tail)
  509.                 level_id = -1;
  510.         }
  511.         if (level_id <= 0)
  512.             av_log(avctx, AV_LOG_WARNING, "Failed to parse level\n");
  513.  
  514.         for (i = 0; i<x264_levels[i].level_idc; i++)
  515.             if (x264_levels[i].level_idc == level_id)
  516.                 x4->params.i_frame_reference = av_clip(x264_levels[i].dpb / mbn / scale, 1, x4->params.i_frame_reference);
  517.     }
  518.  
  519.     if (avctx->trellis >= 0)
  520.         x4->params.analyse.i_trellis    = avctx->trellis;
  521.     if (avctx->me_range >= 0)
  522.         x4->params.analyse.i_me_range   = avctx->me_range;
  523.     if (avctx->noise_reduction >= 0)
  524.         x4->params.analyse.i_noise_reduction = avctx->noise_reduction;
  525.     if (avctx->me_subpel_quality >= 0)
  526.         x4->params.analyse.i_subpel_refine   = avctx->me_subpel_quality;
  527.     if (avctx->b_frame_strategy >= 0)
  528.         x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
  529.     if (avctx->keyint_min >= 0)
  530.         x4->params.i_keyint_min = avctx->keyint_min;
  531.     if (avctx->coder_type >= 0)
  532.         x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
  533.     if (avctx->me_cmp >= 0)
  534.         x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
  535.  
  536.     if (x4->aq_mode >= 0)
  537.         x4->params.rc.i_aq_mode = x4->aq_mode;
  538.     if (x4->aq_strength >= 0)
  539.         x4->params.rc.f_aq_strength = x4->aq_strength;
  540.     PARSE_X264_OPT("psy-rd", psy_rd);
  541.     PARSE_X264_OPT("deblock", deblock);
  542.     PARSE_X264_OPT("partitions", partitions);
  543.     PARSE_X264_OPT("stats", stats);
  544.     if (x4->psy >= 0)
  545.         x4->params.analyse.b_psy  = x4->psy;
  546.     if (x4->rc_lookahead >= 0)
  547.         x4->params.rc.i_lookahead = x4->rc_lookahead;
  548.     if (x4->weightp >= 0)
  549.         x4->params.analyse.i_weighted_pred = x4->weightp;
  550.     if (x4->weightb >= 0)
  551.         x4->params.analyse.b_weighted_bipred = x4->weightb;
  552.     if (x4->cplxblur >= 0)
  553.         x4->params.rc.f_complexity_blur = x4->cplxblur;
  554.  
  555.     if (x4->ssim >= 0)
  556.         x4->params.analyse.b_ssim = x4->ssim;
  557.     if (x4->intra_refresh >= 0)
  558.         x4->params.b_intra_refresh = x4->intra_refresh;
  559.     if (x4->bluray_compat >= 0) {
  560.         x4->params.b_bluray_compat = x4->bluray_compat;
  561.         x4->params.b_vfr_input = 0;
  562.     }
  563.     if (x4->avcintra_class >= 0)
  564. #if X264_BUILD >= 142
  565.         x4->params.i_avcintra_class = x4->avcintra_class;
  566. #else
  567.         av_log(avctx, AV_LOG_ERROR,
  568.                "x264 too old for AVC Intra, at least version 142 needed\n");
  569. #endif
  570.     if (x4->b_bias != INT_MIN)
  571.         x4->params.i_bframe_bias              = x4->b_bias;
  572.     if (x4->b_pyramid >= 0)
  573.         x4->params.i_bframe_pyramid = x4->b_pyramid;
  574.     if (x4->mixed_refs >= 0)
  575.         x4->params.analyse.b_mixed_references = x4->mixed_refs;
  576.     if (x4->dct8x8 >= 0)
  577.         x4->params.analyse.b_transform_8x8    = x4->dct8x8;
  578.     if (x4->fast_pskip >= 0)
  579.         x4->params.analyse.b_fast_pskip       = x4->fast_pskip;
  580.     if (x4->aud >= 0)
  581.         x4->params.b_aud                      = x4->aud;
  582.     if (x4->mbtree >= 0)
  583.         x4->params.rc.b_mb_tree               = x4->mbtree;
  584.     if (x4->direct_pred >= 0)
  585.         x4->params.analyse.i_direct_mv_pred   = x4->direct_pred;
  586.  
  587.     if (x4->slice_max_size >= 0)
  588.         x4->params.i_slice_max_size =  x4->slice_max_size;
  589.     else {
  590.         /*
  591.          * Allow x264 to be instructed through AVCodecContext about the maximum
  592.          * size of the RTP payload. For example, this enables the production of
  593.          * payload suitable for the H.264 RTP packetization-mode 0 i.e. single
  594.          * NAL unit per RTP packet.
  595.          */
  596.         if (avctx->rtp_payload_size)
  597.             x4->params.i_slice_max_size = avctx->rtp_payload_size;
  598.     }
  599.  
  600.     if (x4->fastfirstpass)
  601.         x264_param_apply_fastfirstpass(&x4->params);
  602.  
  603.     /* Allow specifying the x264 profile through AVCodecContext. */
  604.     if (!x4->profile)
  605.         switch (avctx->profile) {
  606.         case FF_PROFILE_H264_BASELINE:
  607.             x4->profile = av_strdup("baseline");
  608.             break;
  609.         case FF_PROFILE_H264_HIGH:
  610.             x4->profile = av_strdup("high");
  611.             break;
  612.         case FF_PROFILE_H264_HIGH_10:
  613.             x4->profile = av_strdup("high10");
  614.             break;
  615.         case FF_PROFILE_H264_HIGH_422:
  616.             x4->profile = av_strdup("high422");
  617.             break;
  618.         case FF_PROFILE_H264_HIGH_444:
  619.             x4->profile = av_strdup("high444");
  620.             break;
  621.         case FF_PROFILE_H264_MAIN:
  622.             x4->profile = av_strdup("main");
  623.             break;
  624.         default:
  625.             break;
  626.         }
  627.  
  628.     if (x4->nal_hrd >= 0)
  629.         x4->params.i_nal_hrd = x4->nal_hrd;
  630.  
  631.     if (x4->motion_est >= 0) {
  632.         x4->params.analyse.i_me_method = x4->motion_est;
  633. #if FF_API_MOTION_EST
  634. FF_DISABLE_DEPRECATION_WARNINGS
  635.     } else {
  636.         if (avctx->me_method == ME_EPZS)
  637.             x4->params.analyse.i_me_method = X264_ME_DIA;
  638.         else if (avctx->me_method == ME_HEX)
  639.             x4->params.analyse.i_me_method = X264_ME_HEX;
  640.         else if (avctx->me_method == ME_UMH)
  641.             x4->params.analyse.i_me_method = X264_ME_UMH;
  642.         else if (avctx->me_method == ME_FULL)
  643.             x4->params.analyse.i_me_method = X264_ME_ESA;
  644.         else if (avctx->me_method == ME_TESA)
  645.             x4->params.analyse.i_me_method = X264_ME_TESA;
  646. FF_ENABLE_DEPRECATION_WARNINGS
  647. #endif
  648.     }
  649.  
  650.     if (x4->profile)
  651.         if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {
  652.             int i;
  653.             av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);
  654.             av_log(avctx, AV_LOG_INFO, "Possible profiles:");
  655.             for (i = 0; x264_profile_names[i]; i++)
  656.                 av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);
  657.             av_log(avctx, AV_LOG_INFO, "\n");
  658.             return AVERROR(EINVAL);
  659.         }
  660.  
  661.     x4->params.i_width          = avctx->width;
  662.     x4->params.i_height         = avctx->height;
  663.     av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);
  664.     x4->params.vui.i_sar_width  = sw;
  665.     x4->params.vui.i_sar_height = sh;
  666.     x4->params.i_timebase_den = avctx->time_base.den;
  667.     x4->params.i_timebase_num = avctx->time_base.num;
  668.     x4->params.i_fps_num = avctx->time_base.den;
  669.     x4->params.i_fps_den = avctx->time_base.num * avctx->ticks_per_frame;
  670.  
  671.     x4->params.analyse.b_psnr = avctx->flags & AV_CODEC_FLAG_PSNR;
  672.  
  673.     x4->params.i_threads      = avctx->thread_count;
  674.     if (avctx->thread_type)
  675.         x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;
  676.  
  677.     x4->params.b_interlaced   = avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;
  678.  
  679.     x4->params.b_open_gop     = !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);
  680.  
  681.     x4->params.i_slice_count  = avctx->slices;
  682.  
  683.     x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
  684.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
  685.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
  686.                                  avctx->color_range == AVCOL_RANGE_JPEG;
  687.  
  688.     if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
  689.         x4->params.vui.i_colmatrix = avctx->colorspace;
  690.     if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED)
  691.         x4->params.vui.i_colorprim = avctx->color_primaries;
  692.     if (avctx->color_trc != AVCOL_TRC_UNSPECIFIED)
  693.         x4->params.vui.i_transfer  = avctx->color_trc;
  694.  
  695.     if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)
  696.         x4->params.b_repeat_headers = 0;
  697.  
  698.     if(x4->x264opts){
  699.         const char *p= x4->x264opts;
  700.         while(p){
  701.             char param[256]={0}, val[256]={0};
  702.             if(sscanf(p, "%255[^:=]=%255[^:]", param, val) == 1){
  703.                 OPT_STR(param, "1");
  704.             }else
  705.                 OPT_STR(param, val);
  706.             p= strchr(p, ':');
  707.             p+=!!p;
  708.         }
  709.     }
  710.  
  711.     if (x4->x264_params) {
  712.         AVDictionary *dict    = NULL;
  713.         AVDictionaryEntry *en = NULL;
  714.  
  715.         if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) {
  716.             while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
  717.                 if (x264_param_parse(&x4->params, en->key, en->value) < 0)
  718.                     av_log(avctx, AV_LOG_WARNING,
  719.                            "Error parsing option '%s = %s'.\n",
  720.                             en->key, en->value);
  721.             }
  722.  
  723.             av_dict_free(&dict);
  724.         }
  725.     }
  726.  
  727.     // update AVCodecContext with x264 parameters
  728.     avctx->has_b_frames = x4->params.i_bframe ?
  729.         x4->params.i_bframe_pyramid ? 2 : 1 : 0;
  730.     if (avctx->max_b_frames < 0)
  731.         avctx->max_b_frames = 0;
  732.  
  733.     avctx->bit_rate = x4->params.rc.i_bitrate*1000;
  734.  
  735.     x4->enc = x264_encoder_open(&x4->params);
  736.     if (!x4->enc)
  737.         return AVERROR_EXTERNAL;
  738.  
  739.     if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
  740.         x264_nal_t *nal;
  741.         uint8_t *p;
  742.         int nnal, s, i;
  743.  
  744.         s = x264_encoder_headers(x4->enc, &nal, &nnal);
  745.         avctx->extradata = p = av_malloc(s);
  746.         if (!p)
  747.             return AVERROR(ENOMEM);
  748.  
  749.         for (i = 0; i < nnal; i++) {
  750.             /* Don't put the SEI in extradata. */
  751.             if (nal[i].i_type == NAL_SEI) {
  752.                 av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);
  753.                 x4->sei_size = nal[i].i_payload;
  754.                 x4->sei      = av_malloc(x4->sei_size);
  755.                 if (!x4->sei)
  756.                     return AVERROR(ENOMEM);
  757.                 memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);
  758.                 continue;
  759.             }
  760.             memcpy(p, nal[i].p_payload, nal[i].i_payload);
  761.             p += nal[i].i_payload;
  762.         }
  763.         avctx->extradata_size = p - avctx->extradata;
  764.     }
  765.  
  766.     return 0;
  767. }
  768.  
  769. static const enum AVPixelFormat pix_fmts_8bit[] = {
  770.     AV_PIX_FMT_YUV420P,
  771.     AV_PIX_FMT_YUVJ420P,
  772.     AV_PIX_FMT_YUV422P,
  773.     AV_PIX_FMT_YUVJ422P,
  774.     AV_PIX_FMT_YUV444P,
  775.     AV_PIX_FMT_YUVJ444P,
  776.     AV_PIX_FMT_NV12,
  777.     AV_PIX_FMT_NV16,
  778. #ifdef X264_CSP_NV21
  779.     AV_PIX_FMT_NV21,
  780. #endif
  781.     AV_PIX_FMT_NONE
  782. };
  783. static const enum AVPixelFormat pix_fmts_9bit[] = {
  784.     AV_PIX_FMT_YUV420P9,
  785.     AV_PIX_FMT_YUV444P9,
  786.     AV_PIX_FMT_NONE
  787. };
  788. static const enum AVPixelFormat pix_fmts_10bit[] = {
  789.     AV_PIX_FMT_YUV420P10,
  790.     AV_PIX_FMT_YUV422P10,
  791.     AV_PIX_FMT_YUV444P10,
  792.     AV_PIX_FMT_NV20,
  793.     AV_PIX_FMT_NONE
  794. };
  795. static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {
  796. #ifdef X264_CSP_BGR
  797.     AV_PIX_FMT_BGR0,
  798.     AV_PIX_FMT_BGR24,
  799.     AV_PIX_FMT_RGB24,
  800. #endif
  801.     AV_PIX_FMT_NONE
  802. };
  803.  
  804. static av_cold void X264_init_static(AVCodec *codec)
  805. {
  806.     if (x264_bit_depth == 8)
  807.         codec->pix_fmts = pix_fmts_8bit;
  808.     else if (x264_bit_depth == 9)
  809.         codec->pix_fmts = pix_fmts_9bit;
  810.     else if (x264_bit_depth == 10)
  811.         codec->pix_fmts = pix_fmts_10bit;
  812. }
  813.  
  814. #define OFFSET(x) offsetof(X264Context, x)
  815. #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
  816. static const AVOption options[] = {
  817.     { "preset",        "Set the encoding preset (cf. x264 --fullhelp)",   OFFSET(preset),        AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},
  818.     { "tune",          "Tune the encoding params (cf. x264 --fullhelp)",  OFFSET(tune),          AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
  819.     { "profile",       "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile),       AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
  820.     { "fastfirstpass", "Use fast settings when encoding first pass",      OFFSET(fastfirstpass), AV_OPT_TYPE_INT,    { .i64 = 1 }, 0, 1, VE},
  821.     {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
  822.     {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
  823.     {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
  824.     {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
  825.     { "crf",           "Select the quality for constant quality mode",    OFFSET(crf),           AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE },
  826.     { "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 },
  827.     { "qp",            "Constant quantization parameter rate control method",OFFSET(cqp),        AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE },
  828.     { "aq-mode",       "AQ method",                                       OFFSET(aq_mode),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},
  829.     { "none",          NULL,                              0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE},         INT_MIN, INT_MAX, VE, "aq_mode" },
  830.     { "variance",      "Variance AQ (complexity mask)",   0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE},     INT_MIN, INT_MAX, VE, "aq_mode" },
  831.     { "autovariance",  "Auto-variance AQ",                0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
  832. #if X264_BUILD >= 144
  833.     { "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" },
  834. #endif
  835.     { "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},
  836.     { "psy",           "Use psychovisual optimizations.",                 OFFSET(psy),           AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE },
  837.     { "psy-rd",        "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING,  {0 }, 0, 0, VE},
  838.     { "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 },
  839.     { "weightb",       "Weighted prediction for B-frames.",               OFFSET(weightb),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE },
  840.     { "weightp",       "Weighted prediction analysis method.",            OFFSET(weightp),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },
  841.     { "none",          NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE},   INT_MIN, INT_MAX, VE, "weightp" },
  842.     { "simple",        NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
  843.     { "smart",         NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART},  INT_MIN, INT_MAX, VE, "weightp" },
  844.     { "ssim",          "Calculate and print SSIM stats.",                 OFFSET(ssim),          AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE },
  845.     { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE },
  846.     { "bluray-compat", "Bluray compatibility workarounds.",               OFFSET(bluray_compat) ,AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE },
  847.     { "b-bias",        "Influences how often B-frames are used",          OFFSET(b_bias),        AV_OPT_TYPE_INT,    { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
  848.     { "b-pyramid",     "Keep some B-frames as references.",               OFFSET(b_pyramid),     AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },
  849.     { "none",          NULL,                                  0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE},   INT_MIN, INT_MAX, VE, "b_pyramid" },
  850.     { "strict",        "Strictly hierarchical pyramid",       0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
  851.     { "normal",        "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
  852.     { "mixed-refs",    "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_INT, { .i64 = -1}, -1, 1, VE },
  853.     { "8x8dct",        "High profile 8x8 transform.",                     OFFSET(dct8x8),        AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE},
  854.     { "fast-pskip",    NULL,                                              OFFSET(fast_pskip),    AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE},
  855.     { "aud",           "Use access unit delimiters.",                     OFFSET(aud),           AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE},
  856.     { "mbtree",        "Use macroblock tree ratecontrol.",                OFFSET(mbtree),        AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE},
  857.     { "deblock",       "Loop filter parameters, in <alpha:beta> form.",   OFFSET(deblock),       AV_OPT_TYPE_STRING, { 0 },  0, 0, VE},
  858.     { "cplxblur",      "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE},
  859.     { "partitions",    "A comma-separated list of partitions to consider. "
  860.                        "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
  861.     { "direct-pred",   "Direct MV prediction mode",                       OFFSET(direct_pred),   AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
  862.     { "none",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE },     0, 0, VE, "direct-pred" },
  863.     { "spatial",       NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL },  0, 0, VE, "direct-pred" },
  864.     { "temporal",      NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
  865.     { "auto",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO },     0, 0, VE, "direct-pred" },
  866.     { "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 },
  867.     { "stats",         "Filename for 2 pass stats",                       OFFSET(stats),         AV_OPT_TYPE_STRING, { 0 },  0,       0, VE },
  868.     { "nal-hrd",       "Signal HRD information (requires vbv-bufsize; "
  869.                        "cbr not allowed in .mp4)",                        OFFSET(nal_hrd),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },
  870.     { "none",          NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
  871.     { "vbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },
  872.     { "cbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },
  873.     { "avcintra-class","AVC-Intra class 50/100/200",                      OFFSET(avcintra_class),AV_OPT_TYPE_INT,     { .i64 = -1 }, -1, 200   , VE},
  874.     { "motion-est",   "Set motion estimation method",                     OFFSET(motion_est),    AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},
  875.     { "dia",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_DIA },  INT_MIN, INT_MAX, VE, "motion-est" },
  876.     { "hex",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_HEX },  INT_MIN, INT_MAX, VE, "motion-est" },
  877.     { "umh",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_UMH },  INT_MIN, INT_MAX, VE, "motion-est" },
  878.     { "esa",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_ESA },  INT_MIN, INT_MAX, VE, "motion-est" },
  879.     { "tesa",          NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },
  880.     { "forced-idr",   "If forcing keyframes, force them as IDR frames.",                                  OFFSET(forced_idr),  AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE },
  881.     { "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 },
  882.     { NULL },
  883. };
  884.  
  885. static const AVCodecDefault x264_defaults[] = {
  886.     { "b",                "0" },
  887.     { "bf",               "-1" },
  888.     { "flags2",           "0" },
  889.     { "g",                "-1" },
  890.     { "i_qfactor",        "-1" },
  891.     { "b_qfactor",        "-1" },
  892.     { "qmin",             "-1" },
  893.     { "qmax",             "-1" },
  894.     { "qdiff",            "-1" },
  895.     { "qblur",            "-1" },
  896.     { "qcomp",            "-1" },
  897. //     { "rc_lookahead",     "-1" },
  898.     { "refs",             "-1" },
  899.     { "sc_threshold",     "-1" },
  900.     { "trellis",          "-1" },
  901.     { "nr",               "-1" },
  902.     { "me_range",         "-1" },
  903. #if FF_API_MOTION_EST
  904.     { "me_method",        "-1" },
  905. #endif
  906.     { "subq",             "-1" },
  907.     { "b_strategy",       "-1" },
  908.     { "keyint_min",       "-1" },
  909.     { "coder",            "-1" },
  910.     { "cmp",              "-1" },
  911.     { "threads",          AV_STRINGIFY(X264_THREADS_AUTO) },
  912.     { "thread_type",      "0" },
  913.     { "flags",            "+cgop" },
  914.     { "rc_init_occupancy","-1" },
  915.     { NULL },
  916. };
  917.  
  918. #if CONFIG_LIBX264_ENCODER
  919. static const AVClass x264_class = {
  920.     .class_name = "libx264",
  921.     .item_name  = av_default_item_name,
  922.     .option     = options,
  923.     .version    = LIBAVUTIL_VERSION_INT,
  924. };
  925.  
  926. static const AVClass rgbclass = {
  927.     .class_name = "libx264rgb",
  928.     .item_name  = av_default_item_name,
  929.     .option     = options,
  930.     .version    = LIBAVUTIL_VERSION_INT,
  931. };
  932.  
  933. AVCodec ff_libx264_encoder = {
  934.     .name             = "libx264",
  935.     .long_name        = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
  936.     .type             = AVMEDIA_TYPE_VIDEO,
  937.     .id               = AV_CODEC_ID_H264,
  938.     .priv_data_size   = sizeof(X264Context),
  939.     .init             = X264_init,
  940.     .encode2          = X264_frame,
  941.     .close            = X264_close,
  942.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
  943.     .priv_class       = &x264_class,
  944.     .defaults         = x264_defaults,
  945.     .init_static_data = X264_init_static,
  946.     .caps_internal    = FF_CODEC_CAP_INIT_THREADSAFE |
  947.                         FF_CODEC_CAP_INIT_CLEANUP,
  948. };
  949.  
  950. AVCodec ff_libx264rgb_encoder = {
  951.     .name           = "libx264rgb",
  952.     .long_name      = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),
  953.     .type           = AVMEDIA_TYPE_VIDEO,
  954.     .id             = AV_CODEC_ID_H264,
  955.     .priv_data_size = sizeof(X264Context),
  956.     .init           = X264_init,
  957.     .encode2        = X264_frame,
  958.     .close          = X264_close,
  959.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
  960.     .priv_class     = &rgbclass,
  961.     .defaults       = x264_defaults,
  962.     .pix_fmts       = pix_fmts_8bit_rgb,
  963. };
  964. #endif
  965.  
  966. #if CONFIG_LIBX262_ENCODER
  967. static const AVClass X262_class = {
  968.     .class_name = "libx262",
  969.     .item_name  = av_default_item_name,
  970.     .option     = options,
  971.     .version    = LIBAVUTIL_VERSION_INT,
  972. };
  973.  
  974. AVCodec ff_libx262_encoder = {
  975.     .name             = "libx262",
  976.     .long_name        = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),
  977.     .type             = AVMEDIA_TYPE_VIDEO,
  978.     .id               = AV_CODEC_ID_MPEG2VIDEO,
  979.     .priv_data_size   = sizeof(X264Context),
  980.     .init             = X264_init,
  981.     .encode2          = X264_frame,
  982.     .close            = X264_close,
  983.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
  984.     .priv_class       = &X262_class,
  985.     .defaults         = x264_defaults,
  986.     .pix_fmts         = pix_fmts_8bit,
  987.     .caps_internal    = FF_CODEC_CAP_INIT_THREADSAFE |
  988.                         FF_CODEC_CAP_INIT_CLEANUP,
  989. };
  990. #endif
  991.