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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. typedef struct X264Context {

  44.     AVClass        *class;

  45.     x264_param_t    params;

  46.     x264_t         *enc;

  47.     x264_picture_t  pic;

  48.     uint8_t        *sei;

  49.     int             sei_size;

  50.     char *preset;

  51.     char *tune;

  52.     char *profile;

  53.     char *level;

  54.     int fastfirstpass;

  55.     char *wpredp;

  56.     char *x264opts;

  57.     float crf;

  58.     float crf_max;

  59.     int cqp;

  60.     int aq_mode;

  61.     float aq_strength;

  62.     char *psy_rd;

  63.     int psy;

  64.     int rc_lookahead;

  65.     int weightp;

  66.     int weightb;

  67.     int ssim;

  68.     int intra_refresh;

  69.     int bluray_compat;

  70.     int b_bias;

  71.     int b_pyramid;

  72.     int mixed_refs;

  73.     int dct8x8;

  74.     int fast_pskip;

  75.     int aud;

  76.     int mbtree;

  77.     char *deblock;

  78.     float cplxblur;

  79.     char *partitions;

  80.     int direct_pred;

  81.     int slice_max_size;

  82.     char *stats;

  83.     int nal_hrd;

  84.     int avcintra_class;

  85.     int motion_est;

  86.     int forced_idr;

  87.     int a53_cc;

  88.     char *x264_params;

  89. } X264Context;

  90. 

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

  92. {

  93.     static const int level_map[] = {

  94.         [X264_LOG_ERROR]   = AV_LOG_ERROR,

  95.         [X264_LOG_WARNING] = AV_LOG_WARNING,

  96.         [X264_LOG_INFO]    = AV_LOG_INFO,

  97.         [X264_LOG_DEBUG]   = AV_LOG_DEBUG

  98.     };

  99. 

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

  101.         return;

  102. 

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

  104. }

  105. 

  106. 

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

  108.                        const x264_nal_t *nals, int nnal)

  109. {

  110.     X264Context *x4 = ctx->priv_data;

  111.     uint8_t *p;

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

  113. 

  114.     if (!nnal)

  115.         return 0;

  116. 

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

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

  119. 

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

  121.         return ret;

  122. 

  123.     p = pkt->data;

  124. 

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

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

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

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

  129.             return -1;

  130.         }

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

  132.         p += x4->sei_size;

  133.         x4->sei_size = 0;

  134.         av_freep(&x4->sei);

  135.     }

  136. 

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

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

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

  140.     }

  141. 

  142.     return 1;

  143. }

  144. 

  145. static int avfmt2_num_planes(int avfmt)

  146. {

  147.     switch (avfmt) {

  148.     case AV_PIX_FMT_YUV420P:

  149.     case AV_PIX_FMT_YUVJ420P:

  150.     case AV_PIX_FMT_YUV420P9:

  151.     case AV_PIX_FMT_YUV420P10:

  152.     case AV_PIX_FMT_YUV444P:

  153.         return 3;

  154. 

  155.     case AV_PIX_FMT_BGR0:

  156.     case AV_PIX_FMT_BGR24:

  157.     case AV_PIX_FMT_RGB24:

  158.         return 1;

  159. 

  160.     default:

  161.         return 3;

  162.     }

  163. }

  164. 

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

  166. {

  167.     X264Context *x4 = ctx->priv_data;

  168.     AVFrameSideData *side_data;

  169. 

  170. 

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

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

  173. 

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

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

  176.     }

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

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

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

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

  181.     }

  182. 

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

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

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

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

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

  188.     }

  189. 

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

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

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

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

  194.     }

  195. 

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

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

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

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

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

  201.     }

  202. 

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

  204.         x4->cqp >= 0 &&

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

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

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

  208.     }

  209. 

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

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

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

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

  214.     }

  215.   }

  216. 

  217.     side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_STEREO3D);

  218.     if (side_data) {

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

  220.         int fpa_type;

  221. 

  222.         switch (stereo->type) {

  223.         case AV_STEREO3D_CHECKERBOARD:

  224.             fpa_type = 0;

  225.             break;

  226.         case AV_STEREO3D_COLUMNS:

  227.             fpa_type = 1;

  228.             break;

  229.         case AV_STEREO3D_LINES:

  230.             fpa_type = 2;

  231.             break;

  232.         case AV_STEREO3D_SIDEBYSIDE:

  233.             fpa_type = 3;

  234.             break;

  235.         case AV_STEREO3D_TOPBOTTOM:

  236.             fpa_type = 4;

  237.             break;

  238.         case AV_STEREO3D_FRAMESEQUENCE:

  239.             fpa_type = 5;

  240.             break;

  241.         default:

  242.             fpa_type = -1;

  243.             break;

  244.         }

  245. 

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

  247.             x4->params.i_frame_packing = fpa_type;

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

  249.         }

  250.     }

  251. }

  252. 

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

  254.                       int *got_packet)

  255. {

  256.     X264Context *x4 = ctx->priv_data;

  257.     x264_nal_t *nal;

  258.     int nnal, i, ret;

  259.     x264_picture_t pic_out = {0};

  260.     int pict_type;

  261.     AVFrameSideData *side_data;

  262. 

  263.     x264_picture_init( &x4->pic );

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

  265.     if (x264_bit_depth > 8)

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

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

  268. 

  269.     if (frame) {

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

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

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

  273.         }

  274. 

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

  276. 

  277.         switch (frame->pict_type) {

  278.         case AV_PICTURE_TYPE_I:

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

  280.                                                  : X264_TYPE_KEYFRAME;

  281.             break;

  282.         case AV_PICTURE_TYPE_P:

  283.             x4->pic.i_type = X264_TYPE_P;

  284.             break;

  285.         case AV_PICTURE_TYPE_B:

  286.             x4->pic.i_type = X264_TYPE_B;

  287.             break;

  288.         default:

  289.             x4->pic.i_type = X264_TYPE_AUTO;

  290.             break;

  291.         }

  292.         reconfig_encoder(ctx, frame);

  293. 

  294.         if (x4->a53_cc) {

  295.             side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);

  296.             if (side_data) {

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

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

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

  300.                     goto skip_a53cc;

  301.                 }

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

  303. 

  304.                 x4->pic.extra_sei.payloads[0].payload_size = side_data->size + 11;

  305.                 x4->pic.extra_sei.payloads[0].payload = av_mallocz(x4->pic.extra_sei.payloads[0].payload_size);

  306.                 if (x4->pic.extra_sei.payloads[0].payload == NULL) {

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

  308.                     av_freep(&x4->pic.extra_sei.payloads);

  309.                     goto skip_a53cc;

  310.                 }

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

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

  313.                 memcpy(x4->pic.extra_sei.payloads[0].payload + 10, side_data->data, side_data->size);

  314.                 x4->pic.extra_sei.payloads[0].payload[0] = 181;

  315.                 x4->pic.extra_sei.payloads[0].payload[1] = 0;

  316.                 x4->pic.extra_sei.payloads[0].payload[2] = 49;

  317. 

  318.                 /**

  319.                  * 'GA94' is standard in North America for ATSC, but hard coding

  320.                  * this style may not be the right thing to do -- other formats

  321.                  * do exist. This information is not available in the side_data

  322.                  * so we are going with this right now.

  323.                  */

  324.                 AV_WL32(x4->pic.extra_sei.payloads[0].payload + 3,

  325.                     MKTAG('G', 'A', '9', '4'));

  326.                 x4->pic.extra_sei.payloads[0].payload[7] = 3;

  327.                 x4->pic.extra_sei.payloads[0].payload[8] =

  328.                     ((side_data->size/3) & 0x1f) | 0x40;

  329.                 x4->pic.extra_sei.payloads[0].payload[9] = 0;

  330.                 x4->pic.extra_sei.payloads[0].payload[side_data->size+10] = 255;

  331.             }

  332.         }

  333.     }

  334. skip_a53cc:

  335.     do {

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

  337.             return AVERROR_EXTERNAL;

  338. 

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

  340.         if (ret < 0)

  341.             return ret;

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

  343. 

  344.     pkt->pts = pic_out.i_pts;

  345.     pkt->dts = pic_out.i_dts;

  346. 

  347. 

  348.     switch (pic_out.i_type) {

  349.     case X264_TYPE_IDR:

  350.     case X264_TYPE_I:

  351.         pict_type = AV_PICTURE_TYPE_I;

  352.         break;

  353.     case X264_TYPE_P:

  354.         pict_type = AV_PICTURE_TYPE_P;

  355.         break;

  356.     case X264_TYPE_B:

  357.     case X264_TYPE_BREF:

  358.         pict_type = AV_PICTURE_TYPE_B;

  359.         break;

  360.     default:

  361.         pict_type = AV_PICTURE_TYPE_NONE;

  362.     }

  363. #if FF_API_CODED_FRAME

  364. FF_DISABLE_DEPRECATION_WARNINGS

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

  366. FF_ENABLE_DEPRECATION_WARNINGS

  367. #endif

  368. 

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

  370.     if (ret) {

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

  372. 

  373. #if FF_API_CODED_FRAME

  374. FF_DISABLE_DEPRECATION_WARNINGS

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

  376. FF_ENABLE_DEPRECATION_WARNINGS

  377. #endif

  378.     }

  379. 

  380.     *got_packet = ret;

  381.     return 0;

  382. }

  383. 

  384. static av_cold int X264_close(AVCodecContext *avctx)

  385. {

  386.     X264Context *x4 = avctx->priv_data;

  387. 

  388.     av_freep(&avctx->extradata);

  389.     av_freep(&x4->sei);

  390. 

  391.     if (x4->enc) {

  392.         x264_encoder_close(x4->enc);

  393.         x4->enc = NULL;

  394.     }

  395. 

  396.     return 0;

  397. }

  398. 

  399. #define OPT_STR(opt, param)                                                   \

  400.     do {                                                                      \

  401.         int ret;                                                              \

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

  403.             if(ret == X264_PARAM_BAD_NAME)                                    \

  404.                 av_log(avctx, AV_LOG_ERROR,                                   \

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

  406.             else                                                              \

  407.                 av_log(avctx, AV_LOG_ERROR,                                   \

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

  409.             return -1;                                                        \

  410.         }                                                                     \

  411.     } while (0)

  412. 

  413. static int convert_pix_fmt(enum AVPixelFormat pix_fmt)

  414. {

  415.     switch (pix_fmt) {

  416.     case AV_PIX_FMT_YUV420P:

  417.     case AV_PIX_FMT_YUVJ420P:

  418.     case AV_PIX_FMT_YUV420P9:

  419.     case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;

  420.     case AV_PIX_FMT_YUV422P:

  421.     case AV_PIX_FMT_YUVJ422P:

  422.     case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;

  423.     case AV_PIX_FMT_YUV444P:

  424.     case AV_PIX_FMT_YUVJ444P:

  425.     case AV_PIX_FMT_YUV444P9:

  426.     case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;

  427. #ifdef X264_CSP_BGR

  428.     case AV_PIX_FMT_BGR0:

  429.         return X264_CSP_BGRA;

  430.     case AV_PIX_FMT_BGR24:

  431.         return X264_CSP_BGR;

  432. 

  433.     case AV_PIX_FMT_RGB24:

  434.         return X264_CSP_RGB;

  435. #endif

  436.     case AV_PIX_FMT_NV12:      return X264_CSP_NV12;

  437.     case AV_PIX_FMT_NV16:

  438.     case AV_PIX_FMT_NV20:      return X264_CSP_NV16;

  439. #ifdef X264_CSP_NV21

  440.     case AV_PIX_FMT_NV21:      return X264_CSP_NV21;

  441. #endif

  442.     };

  443.     return 0;

  444. }

  445. 

  446. #define PARSE_X264_OPT(name, var)\

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

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

  449.         return AVERROR(EINVAL);\

  450.     }

  451. 

  452. static av_cold int X264_init(AVCodecContext *avctx)

  453. {

  454.     X264Context *x4 = avctx->priv_data;

  455.     int sw,sh;

  456. 

  457.     if (avctx->global_quality > 0)

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

  459. 

  460. #if CONFIG_LIBX262_ENCODER

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

  462.         x4->params.b_mpeg2 = 1;

  463.         x264_param_default_mpeg2(&x4->params);

  464.     } else

  465. #endif

  466.     x264_param_default(&x4->params);

  467. 

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

  469. 

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

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

  472.             int i;

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

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

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

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

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

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

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

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

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

  482.             return AVERROR(EINVAL);

  483.         }

  484. 

  485.     if (avctx->level > 0)

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

  487. 

  488.     x4->params.pf_log               = X264_log;

  489.     x4->params.p_log_private        = avctx;

  490.     x4->params.i_log_level          = X264_LOG_DEBUG;

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

  492. 

  493.     OPT_STR("weightp", x4->wpredp);

  494. 

  495.     if (avctx->bit_rate) {

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

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

  498.     }

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

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

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

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

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

  504.     } else {

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

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

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

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

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

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

  511.         }

  512. 

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

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

  515.     }

  516. 

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

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

  519.         x4->params.rc.f_vbv_buffer_init =

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

  521.     }

  522. 

  523.     OPT_STR("level", x4->level);

  524. 

  525.     if (avctx->i_quant_factor > 0)

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

  527.     if (avctx->b_quant_factor > 0)

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

  529.     if (avctx->chromaoffset)

  530.         x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;

  531. 

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

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

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

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

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

  537.         x4->params.i_scenecut_threshold = avctx->scenechange_threshold;

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

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

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

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

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

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

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

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

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

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

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

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

  550.     else if (x4->level) {

  551.         int i;

  552.         int mbn = FF_CEIL_RSHIFT(avctx->width, 4) * FF_CEIL_RSHIFT(avctx->height, 4);

  553.         int level_id = -1;

  554.         char *tail;

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

  556. 

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

  558.             level_id = 9;

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

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

  561.             if (*tail)

  562.                 level_id = -1;

  563.         }

  564.         if (level_id <= 0)

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

  566. 

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

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

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

  570.     }

  571. 

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

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

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

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

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

  577.         x4->params.analyse.i_noise_reduction = avctx->noise_reduction;

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

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

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

  581.         x4->params.i_bframe_adaptive = avctx->b_frame_strategy;

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

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

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

  585.         x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;

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

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

  588. 

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

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

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

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

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

  594.     PARSE_X264_OPT("deblock", deblock);

  595.     PARSE_X264_OPT("partitions", partitions);

  596.     PARSE_X264_OPT("stats", stats);

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

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

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

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

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

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

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

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

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

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

  607. 

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

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

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

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

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

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

  614.         x4->params.b_vfr_input = 0;

  615.     }

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

  617. #if X264_BUILD >= 142

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

  619. #else

  620.         av_log(avctx, AV_LOG_ERROR,

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

  622. #endif

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  639. 

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

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

  642.     else {

  643.         /*

  644.          * Allow x264 to be instructed through AVCodecContext about the maximum

  645.          * size of the RTP payload. For example, this enables the production of

  646.          * payload suitable for the H.264 RTP packetization-mode 0 i.e. single

  647.          * NAL unit per RTP packet.

  648.          */

  649.         if (avctx->rtp_payload_size)

  650.             x4->params.i_slice_max_size = avctx->rtp_payload_size;

  651.     }

  652. 

  653.     if (x4->fastfirstpass)

  654.         x264_param_apply_fastfirstpass(&x4->params);

  655. 

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

  657.     if (!x4->profile)

  658.         switch (avctx->profile) {

  659.         case FF_PROFILE_H264_BASELINE:

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

  661.             break;

  662.         case FF_PROFILE_H264_HIGH:

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

  664.             break;

  665.         case FF_PROFILE_H264_HIGH_10:

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

  667.             break;

  668.         case FF_PROFILE_H264_HIGH_422:

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

  670.             break;

  671.         case FF_PROFILE_H264_HIGH_444:

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

  673.             break;

  674.         case FF_PROFILE_H264_MAIN:

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

  676.             break;

  677.         default:

  678.             break;

  679.         }

  680. 

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

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

  683. 

  684.     if (x4->motion_est >= 0) {

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

  686. #if FF_API_MOTION_EST

  687. FF_DISABLE_DEPRECATION_WARNINGS

  688.     } else {

  689.         if (avctx->me_method == ME_EPZS)

  690.             x4->params.analyse.i_me_method = X264_ME_DIA;

  691.         else if (avctx->me_method == ME_HEX)

  692.             x4->params.analyse.i_me_method = X264_ME_HEX;

  693.         else if (avctx->me_method == ME_UMH)

  694.             x4->params.analyse.i_me_method = X264_ME_UMH;

  695.         else if (avctx->me_method == ME_FULL)

  696.             x4->params.analyse.i_me_method = X264_ME_ESA;

  697.         else if (avctx->me_method == ME_TESA)

  698.             x4->params.analyse.i_me_method = X264_ME_TESA;

  699. FF_ENABLE_DEPRECATION_WARNINGS

  700. #endif

  701.     }

  702. 

  703.     if (x4->profile)

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

  705.             int i;

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

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

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

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

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

  711.             return AVERROR(EINVAL);

  712.         }

  713. 

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

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

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

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

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

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

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

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

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

  723. 

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

  725. 

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

  727.     if (avctx->thread_type)

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

  729. 

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

  731. 

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

  733. 

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

  735. 

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

  737.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||

  738.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||

  739.                                  avctx->color_range == AVCOL_RANGE_JPEG;

  740. 

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

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

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

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

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

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

  747. 

  748.     if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)

  749.         x4->params.b_repeat_headers = 0;

  750. 

  751.     if(x4->x264opts){

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

  753.         while(p){

  754.             char param[256]={0}, val[256]={0};

  755.             if(sscanf(p, "%255[^:=]=%255[^:]", param, val) == 1){

  756.                 OPT_STR(param, "1");

  757.             }else

  758.                 OPT_STR(param, val);

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

  760.             p+=!!p;

  761.         }

  762.     }

  763. 

  764.     if (x4->x264_params) {

  765.         AVDictionary *dict    = NULL;

  766.         AVDictionaryEntry *en = NULL;

  767. 

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

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

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

  771.                     av_log(avctx, AV_LOG_WARNING,

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

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

  774.             }

  775. 

  776.             av_dict_free(&dict);

  777.         }

  778.     }

  779. 

  780.     // update AVCodecContext with x264 parameters

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

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

  783.     if (avctx->max_b_frames < 0)

  784.         avctx->max_b_frames = 0;

  785. 

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

  787. 

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

  789.     if (!x4->enc)

  790.         return AVERROR_EXTERNAL;

  791. 

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

  793.         x264_nal_t *nal;

  794.         uint8_t *p;

  795.         int nnal, s, i;

  796. 

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

  798.         avctx->extradata = p = av_malloc(s);

  799.         if (!p)

  800.             return AVERROR(ENOMEM);

  801. 

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

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

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

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

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

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

  808.                 if (!x4->sei)

  809.                     return AVERROR(ENOMEM);

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

  811.                 continue;

  812.             }

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

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

  815.         }

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

  817.     }

  818. 

  819.     return 0;

  820. }

  821. 

  822. static const enum AVPixelFormat pix_fmts_8bit[] = {

  823.     AV_PIX_FMT_YUV420P,

  824.     AV_PIX_FMT_YUVJ420P,

  825.     AV_PIX_FMT_YUV422P,

  826.     AV_PIX_FMT_YUVJ422P,

  827.     AV_PIX_FMT_YUV444P,

  828.     AV_PIX_FMT_YUVJ444P,

  829.     AV_PIX_FMT_NV12,

  830.     AV_PIX_FMT_NV16,

  831. #ifdef X264_CSP_NV21

  832.     AV_PIX_FMT_NV21,

  833. #endif

  834.     AV_PIX_FMT_NONE

  835. };

  836. static const enum AVPixelFormat pix_fmts_9bit[] = {

  837.     AV_PIX_FMT_YUV420P9,

  838.     AV_PIX_FMT_YUV444P9,

  839.     AV_PIX_FMT_NONE

  840. };

  841. static const enum AVPixelFormat pix_fmts_10bit[] = {

  842.     AV_PIX_FMT_YUV420P10,

  843.     AV_PIX_FMT_YUV422P10,

  844.     AV_PIX_FMT_YUV444P10,

  845.     AV_PIX_FMT_NV20,

  846.     AV_PIX_FMT_NONE

  847. };

  848. static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {

  849. #ifdef X264_CSP_BGR

  850.     AV_PIX_FMT_BGR0,

  851.     AV_PIX_FMT_BGR24,

  852.     AV_PIX_FMT_RGB24,

  853. #endif

  854.     AV_PIX_FMT_NONE

  855. };

  856. 

  857. static av_cold void X264_init_static(AVCodec *codec)

  858. {

  859.     if (x264_bit_depth == 8)

  860.         codec->pix_fmts = pix_fmts_8bit;

  861.     else if (x264_bit_depth == 9)

  862.         codec->pix_fmts = pix_fmts_9bit;

  863.     else if (x264_bit_depth == 10)

  864.         codec->pix_fmts = pix_fmts_10bit;

  865. }

  866. 

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

  868. #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

  869. static const AVOption options[] = {

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

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

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

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

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

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

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

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

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

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

  880.     { "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 },

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

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

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

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

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

  886. #if X264_BUILD >= 144

  887.     { "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" },

  888. #endif

  889.     { "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},

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

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

  892.     { "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 },

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

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

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

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

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

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

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

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

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

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

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

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

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

  906.     { "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 },

  907.     { "8x8dct",        "High profile 8x8 transform.",                     OFFSET(dct8x8),        AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE},

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

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

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

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

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

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

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

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

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

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

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

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

  920.     { "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 },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  935.     { "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 },

  936.     { NULL },

  937. };

  938. 

  939. static const AVCodecDefault x264_defaults[] = {

  940.     { "b",                "0" },

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

  942.     { "flags2",           "0" },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  957. #if FF_API_MOTION_EST

  958.     { "me_method",        "-1" },

  959. #endif

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

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

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

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

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

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

  966.     { "thread_type",      "0" },

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

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

  969.     { NULL },

  970. };

  971. 

  972. #if CONFIG_LIBX264_ENCODER

  973. static const AVClass x264_class = {

  974.     .class_name = "libx264",

  975.     .item_name  = av_default_item_name,

  976.     .option     = options,

  977.     .version    = LIBAVUTIL_VERSION_INT,

  978. };

  979. 

  980. static const AVClass rgbclass = {

  981.     .class_name = "libx264rgb",

  982.     .item_name  = av_default_item_name,

  983.     .option     = options,

  984.     .version    = LIBAVUTIL_VERSION_INT,

  985. };

  986. 

  987. AVCodec ff_libx264_encoder = {

  988.     .name             = "libx264",

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

  990.     .type             = AVMEDIA_TYPE_VIDEO,

  991.     .id               = AV_CODEC_ID_H264,

  992.     .priv_data_size   = sizeof(X264Context),

  993.     .init             = X264_init,

  994.     .encode2          = X264_frame,

  995.     .close            = X264_close,

  996.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,

  997.     .priv_class       = &x264_class,

  998.     .defaults         = x264_defaults,

  999.     .init_static_data = X264_init_static,

  1000.     .caps_internal    = FF_CODEC_CAP_INIT_THREADSAFE |

  1001.                         FF_CODEC_CAP_INIT_CLEANUP,

  1002. };

  1003. 

  1004. AVCodec ff_libx264rgb_encoder = {

  1005.     .name           = "libx264rgb",

  1006.     .long_name      = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),

  1007.     .type           = AVMEDIA_TYPE_VIDEO,

  1008.     .id             = AV_CODEC_ID_H264,

  1009.     .priv_data_size = sizeof(X264Context),

  1010.     .init           = X264_init,

  1011.     .encode2        = X264_frame,

  1012.     .close          = X264_close,

  1013.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,

  1014.     .priv_class     = &rgbclass,

  1015.     .defaults       = x264_defaults,

  1016.     .pix_fmts       = pix_fmts_8bit_rgb,

  1017. };

  1018. #endif

  1019. 

  1020. #if CONFIG_LIBX262_ENCODER

  1021. static const AVClass X262_class = {

  1022.     .class_name = "libx262",

  1023.     .item_name  = av_default_item_name,

  1024.     .option     = options,

  1025.     .version    = LIBAVUTIL_VERSION_INT,

  1026. };

  1027. 

  1028. AVCodec ff_libx262_encoder = {

  1029.     .name             = "libx262",

  1030.     .long_name        = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),

  1031.     .type             = AVMEDIA_TYPE_VIDEO,

  1032.     .id               = AV_CODEC_ID_MPEG2VIDEO,

  1033.     .priv_data_size   = sizeof(X264Context),

  1034.     .init             = X264_init,

  1035.     .encode2          = X264_frame,

  1036.     .close            = X264_close,

  1037.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,

  1038.     .priv_class       = &X262_class,

  1039.     .defaults         = x264_defaults,

  1040.     .pix_fmts         = pix_fmts_8bit,

  1041.     .caps_internal    = FF_CODEC_CAP_INIT_THREADSAFE |

  1042.                         FF_CODEC_CAP_INIT_CLEANUP,

  1043. };

  1044. #endif