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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 coder;

  88.     int a53_cc;

  89.     int b_frame_strategy;

  90. 

  91.     char *x264_params;

  92. } X264Context;

  93. 

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

  95. {

  96.     static const int level_map[] = {

  97.         [X264_LOG_ERROR]   = AV_LOG_ERROR,

  98.         [X264_LOG_WARNING] = AV_LOG_WARNING,

  99.         [X264_LOG_INFO]    = AV_LOG_INFO,

  100.         [X264_LOG_DEBUG]   = AV_LOG_DEBUG

  101.     };

  102. 

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

  104.         return;

  105. 

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

  107. }

  108. 

  109. 

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

  111.                        const x264_nal_t *nals, int nnal)

  112. {

  113.     X264Context *x4 = ctx->priv_data;

  114.     uint8_t *p;

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

  116. 

  117.     if (!nnal)

  118.         return 0;

  119. 

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

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

  122. 

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

  124.         return ret;

  125. 

  126.     p = pkt->data;

  127. 

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

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

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

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

  132.             return -1;

  133.         }

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

  135.         p += x4->sei_size;

  136.         x4->sei_size = 0;

  137.         av_freep(&x4->sei);

  138.     }

  139. 

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

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

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

  143.     }

  144. 

  145.     return 1;

  146. }

  147. 

  148. static int avfmt2_num_planes(int avfmt)

  149. {

  150.     switch (avfmt) {

  151.     case AV_PIX_FMT_YUV420P:

  152.     case AV_PIX_FMT_YUVJ420P:

  153.     case AV_PIX_FMT_YUV420P9:

  154.     case AV_PIX_FMT_YUV420P10:

  155.     case AV_PIX_FMT_YUV444P:

  156.         return 3;

  157. 

  158.     case AV_PIX_FMT_BGR0:

  159.     case AV_PIX_FMT_BGR24:

  160.     case AV_PIX_FMT_RGB24:

  161.         return 1;

  162. 

  163.     default:

  164.         return 3;

  165.     }

  166. }

  167. 

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

  169. {

  170.     X264Context *x4 = ctx->priv_data;

  171.     AVFrameSideData *side_data;

  172. 

  173. 

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

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

  176. 

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

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

  179.     }

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

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

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

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

  184.     }

  185. 

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

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

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

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

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

  191.     }

  192. 

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

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

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

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

  197.     }

  198. 

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

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

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

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

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

  204.     }

  205. 

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

  207.         x4->cqp >= 0 &&

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

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

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

  211.     }

  212. 

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

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

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

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

  217.     }

  218.   }

  219. 

  220.     side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_STEREO3D);

  221.     if (side_data) {

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

  223.         int fpa_type;

  224. 

  225.         switch (stereo->type) {

  226.         case AV_STEREO3D_CHECKERBOARD:

  227.             fpa_type = 0;

  228.             break;

  229.         case AV_STEREO3D_COLUMNS:

  230.             fpa_type = 1;

  231.             break;

  232.         case AV_STEREO3D_LINES:

  233.             fpa_type = 2;

  234.             break;

  235.         case AV_STEREO3D_SIDEBYSIDE:

  236.             fpa_type = 3;

  237.             break;

  238.         case AV_STEREO3D_TOPBOTTOM:

  239.             fpa_type = 4;

  240.             break;

  241.         case AV_STEREO3D_FRAMESEQUENCE:

  242.             fpa_type = 5;

  243.             break;

  244.         default:

  245.             fpa_type = -1;

  246.             break;

  247.         }

  248. 

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

  250.             x4->params.i_frame_packing = fpa_type;

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

  252.         }

  253.     }

  254. }

  255. 

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

  257.                       int *got_packet)

  258. {

  259.     X264Context *x4 = ctx->priv_data;

  260.     x264_nal_t *nal;

  261.     int nnal, i, ret;

  262.     x264_picture_t pic_out = {0};

  263.     int pict_type;

  264.     AVFrameSideData *side_data;

  265. 

  266.     x264_picture_init( &x4->pic );

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

  268.     if (x264_bit_depth > 8)

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

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

  271. 

  272.     if (frame) {

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

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

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

  276.         }

  277. 

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

  279. 

  280.         switch (frame->pict_type) {

  281.         case AV_PICTURE_TYPE_I:

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

  283.                                                  : X264_TYPE_KEYFRAME;

  284.             break;

  285.         case AV_PICTURE_TYPE_P:

  286.             x4->pic.i_type = X264_TYPE_P;

  287.             break;

  288.         case AV_PICTURE_TYPE_B:

  289.             x4->pic.i_type = X264_TYPE_B;

  290.             break;

  291.         default:

  292.             x4->pic.i_type = X264_TYPE_AUTO;

  293.             break;

  294.         }

  295.         reconfig_encoder(ctx, frame);

  296. 

  297.         if (x4->a53_cc) {

  298.             side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);

  299.             if (side_data) {

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

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

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

  303.                     goto skip_a53cc;

  304.                 }

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

  306. 

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

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

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

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

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

  312.                     goto skip_a53cc;

  313.                 }

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

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

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

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

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

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

  320. 

  321.                 /**

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

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

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

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

  326.                  */

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

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

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

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

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

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

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

  334.             }

  335.         }

  336.     }

  337. skip_a53cc:

  338.     do {

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

  340.             return AVERROR_EXTERNAL;

  341. 

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

  343.         if (ret < 0)

  344.             return ret;

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

  346. 

  347.     pkt->pts = pic_out.i_pts;

  348.     pkt->dts = pic_out.i_dts;

  349. 

  350. 

  351.     switch (pic_out.i_type) {

  352.     case X264_TYPE_IDR:

  353.     case X264_TYPE_I:

  354.         pict_type = AV_PICTURE_TYPE_I;

  355.         break;

  356.     case X264_TYPE_P:

  357.         pict_type = AV_PICTURE_TYPE_P;

  358.         break;

  359.     case X264_TYPE_B:

  360.     case X264_TYPE_BREF:

  361.         pict_type = AV_PICTURE_TYPE_B;

  362.         break;

  363.     default:

  364.         pict_type = AV_PICTURE_TYPE_NONE;

  365.     }

  366. #if FF_API_CODED_FRAME

  367. FF_DISABLE_DEPRECATION_WARNINGS

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

  369. FF_ENABLE_DEPRECATION_WARNINGS

  370. #endif

  371. 

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

  373.     if (ret) {

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

  375. 

  376. #if FF_API_CODED_FRAME

  377. FF_DISABLE_DEPRECATION_WARNINGS

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

  379. FF_ENABLE_DEPRECATION_WARNINGS

  380. #endif

  381.     }

  382. 

  383.     *got_packet = ret;

  384.     return 0;

  385. }

  386. 

  387. static av_cold int X264_close(AVCodecContext *avctx)

  388. {

  389.     X264Context *x4 = avctx->priv_data;

  390. 

  391.     av_freep(&avctx->extradata);

  392.     av_freep(&x4->sei);

  393. 

  394.     if (x4->enc) {

  395.         x264_encoder_close(x4->enc);

  396.         x4->enc = NULL;

  397.     }

  398. 

  399.     return 0;

  400. }

  401. 

  402. #define OPT_STR(opt, param)                                                   \

  403.     do {                                                                      \

  404.         int ret;                                                              \

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

  406.             if(ret == X264_PARAM_BAD_NAME)                                    \

  407.                 av_log(avctx, AV_LOG_ERROR,                                   \

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

  409.             else                                                              \

  410.                 av_log(avctx, AV_LOG_ERROR,                                   \

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

  412.             return -1;                                                        \

  413.         }                                                                     \

  414.     } while (0)

  415. 

  416. static int convert_pix_fmt(enum AVPixelFormat pix_fmt)

  417. {

  418.     switch (pix_fmt) {

  419.     case AV_PIX_FMT_YUV420P:

  420.     case AV_PIX_FMT_YUVJ420P:

  421.     case AV_PIX_FMT_YUV420P9:

  422.     case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;

  423.     case AV_PIX_FMT_YUV422P:

  424.     case AV_PIX_FMT_YUVJ422P:

  425.     case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;

  426.     case AV_PIX_FMT_YUV444P:

  427.     case AV_PIX_FMT_YUVJ444P:

  428.     case AV_PIX_FMT_YUV444P9:

  429.     case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;

  430. #ifdef X264_CSP_BGR

  431.     case AV_PIX_FMT_BGR0:

  432.         return X264_CSP_BGRA;

  433.     case AV_PIX_FMT_BGR24:

  434.         return X264_CSP_BGR;

  435. 

  436.     case AV_PIX_FMT_RGB24:

  437.         return X264_CSP_RGB;

  438. #endif

  439.     case AV_PIX_FMT_NV12:      return X264_CSP_NV12;

  440.     case AV_PIX_FMT_NV16:

  441.     case AV_PIX_FMT_NV20:      return X264_CSP_NV16;

  442. #ifdef X264_CSP_NV21

  443.     case AV_PIX_FMT_NV21:      return X264_CSP_NV21;

  444. #endif

  445.     };

  446.     return 0;

  447. }

  448. 

  449. #define PARSE_X264_OPT(name, var)\

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

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

  452.         return AVERROR(EINVAL);\

  453.     }

  454. 

  455. static av_cold int X264_init(AVCodecContext *avctx)

  456. {

  457.     X264Context *x4 = avctx->priv_data;

  458.     AVCPBProperties *cpb_props;

  459.     int sw,sh;

  460. 

  461.     if (avctx->global_quality > 0)

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

  463. 

  464. #if CONFIG_LIBX262_ENCODER

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

  466.         x4->params.b_mpeg2 = 1;

  467.         x264_param_default_mpeg2(&x4->params);

  468.     } else

  469. #endif

  470.     x264_param_default(&x4->params);

  471. 

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

  473. 

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

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

  476.             int i;

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

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

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

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

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

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

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

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

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

  486.             return AVERROR(EINVAL);

  487.         }

  488. 

  489.     if (avctx->level > 0)

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

  491. 

  492.     x4->params.pf_log               = X264_log;

  493.     x4->params.p_log_private        = avctx;

  494.     x4->params.i_log_level          = X264_LOG_DEBUG;

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

  496. 

  497.     PARSE_X264_OPT("weightp", wpredp);

  498. 

  499.     if (avctx->bit_rate) {

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

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

  502.     }

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

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

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

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

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

  508.     } else {

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

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

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

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

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

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

  515.         }

  516. 

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

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

  519.     }

  520. 

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

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

  523.         x4->params.rc.f_vbv_buffer_init =

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

  525.     }

  526. 

  527.     PARSE_X264_OPT("level", level);

  528. 

  529.     if (avctx->i_quant_factor > 0)

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

  531.     if (avctx->b_quant_factor > 0)

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

  533.     if (avctx->chromaoffset)

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

  535. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  554.     else if (x4->level) {

  555.         int i;

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

  557.         int level_id = -1;

  558.         char *tail;

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

  560. 

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

  562.             level_id = 9;

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

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

  565.             if (*tail)

  566.                 level_id = -1;

  567.         }

  568.         if (level_id <= 0)

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

  570. 

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

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

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

  574.     }

  575. 

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

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

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

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

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

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

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

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

  584. #if FF_API_PRIVATE_OPT

  585. FF_DISABLE_DEPRECATION_WARNINGS

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

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

  588. FF_ENABLE_DEPRECATION_WARNINGS

  589. #endif

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

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

  592. #if FF_API_CODER_TYPE

  593. FF_DISABLE_DEPRECATION_WARNINGS

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

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

  596. FF_ENABLE_DEPRECATION_WARNINGS

  597. #endif

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

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

  600. 

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

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

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

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

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

  606.     PARSE_X264_OPT("deblock", deblock);

  607.     PARSE_X264_OPT("partitions", partitions);

  608.     PARSE_X264_OPT("stats", stats);

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

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

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

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

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

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

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

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

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

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

  619. 

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

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

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

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

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

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

  626.         x4->params.b_vfr_input = 0;

  627.     }

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

  629. #if X264_BUILD >= 142

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

  631. #else

  632.         av_log(avctx, AV_LOG_ERROR,

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

  634. #endif

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  651. 

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

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

  654.     else {

  655.         /*

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

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

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

  659.          * NAL unit per RTP packet.

  660.          */

  661.         if (avctx->rtp_payload_size)

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

  663.     }

  664. 

  665.     if (x4->fastfirstpass)

  666.         x264_param_apply_fastfirstpass(&x4->params);

  667. 

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

  669.     if (!x4->profile)

  670.         switch (avctx->profile) {

  671.         case FF_PROFILE_H264_BASELINE:

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

  673.             break;

  674.         case FF_PROFILE_H264_HIGH:

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

  676.             break;

  677.         case FF_PROFILE_H264_HIGH_10:

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

  679.             break;

  680.         case FF_PROFILE_H264_HIGH_422:

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

  682.             break;

  683.         case FF_PROFILE_H264_HIGH_444:

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

  685.             break;

  686.         case FF_PROFILE_H264_MAIN:

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

  688.             break;

  689.         default:

  690.             break;

  691.         }

  692. 

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

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

  695. 

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

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

  698. #if FF_API_MOTION_EST

  699. FF_DISABLE_DEPRECATION_WARNINGS

  700.     } else {

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

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

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

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

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

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

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

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

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

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

  711. FF_ENABLE_DEPRECATION_WARNINGS

  712. #endif

  713.     }

  714. 

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

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

  717. 

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

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

  720. 

  721.     if (x4->profile)

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

  723.             int i;

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

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

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

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

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

  729.             return AVERROR(EINVAL);

  730.         }

  731. 

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

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

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

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

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

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

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

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

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

  741. 

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

  743. 

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

  745.     if (avctx->thread_type)

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

  747. 

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

  749. 

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

  751. 

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

  753. 

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

  755.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||

  756.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||

  757.                                  avctx->color_range == AVCOL_RANGE_JPEG;

  758. 

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

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

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

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

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

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

  765. 

  766.     if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)

  767.         x4->params.b_repeat_headers = 0;

  768. 

  769.     if(x4->x264opts){

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

  771.         while(p){

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

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

  774.                 OPT_STR(param, "1");

  775.             }else

  776.                 OPT_STR(param, val);

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

  778.             p+=!!p;

  779.         }

  780.     }

  781. 

  782.     if (x4->x264_params) {

  783.         AVDictionary *dict    = NULL;

  784.         AVDictionaryEntry *en = NULL;

  785. 

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

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

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

  789.                     av_log(avctx, AV_LOG_WARNING,

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

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

  792.             }

  793. 

  794.             av_dict_free(&dict);

  795.         }

  796.     }

  797. 

  798.     // update AVCodecContext with x264 parameters

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

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

  801.     if (avctx->max_b_frames < 0)

  802.         avctx->max_b_frames = 0;

  803. 

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

  805. 

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

  807.     if (!x4->enc)

  808.         return AVERROR_EXTERNAL;

  809. 

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

  811.         x264_nal_t *nal;

  812.         uint8_t *p;

  813.         int nnal, s, i;

  814. 

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

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

  817.         if (!p)

  818.             return AVERROR(ENOMEM);

  819. 

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

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

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

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

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

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

  826.                 if (!x4->sei)

  827.                     return AVERROR(ENOMEM);

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

  829.                 continue;

  830.             }

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

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

  833.         }

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

  835.     }

  836. 

  837.     cpb_props = ff_add_cpb_side_data(avctx);

  838.     if (!cpb_props)

  839.         return AVERROR(ENOMEM);

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

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

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

  843. 

  844.     return 0;

  845. }

  846. 

  847. static const enum AVPixelFormat pix_fmts_8bit[] = {

  848.     AV_PIX_FMT_YUV420P,

  849.     AV_PIX_FMT_YUVJ420P,

  850.     AV_PIX_FMT_YUV422P,

  851.     AV_PIX_FMT_YUVJ422P,

  852.     AV_PIX_FMT_YUV444P,

  853.     AV_PIX_FMT_YUVJ444P,

  854.     AV_PIX_FMT_NV12,

  855.     AV_PIX_FMT_NV16,

  856. #ifdef X264_CSP_NV21

  857.     AV_PIX_FMT_NV21,

  858. #endif

  859.     AV_PIX_FMT_NONE

  860. };

  861. static const enum AVPixelFormat pix_fmts_9bit[] = {

  862.     AV_PIX_FMT_YUV420P9,

  863.     AV_PIX_FMT_YUV444P9,

  864.     AV_PIX_FMT_NONE

  865. };

  866. static const enum AVPixelFormat pix_fmts_10bit[] = {

  867.     AV_PIX_FMT_YUV420P10,

  868.     AV_PIX_FMT_YUV422P10,

  869.     AV_PIX_FMT_YUV444P10,

  870.     AV_PIX_FMT_NV20,

  871.     AV_PIX_FMT_NONE

  872. };

  873. static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {

  874. #ifdef X264_CSP_BGR

  875.     AV_PIX_FMT_BGR0,

  876.     AV_PIX_FMT_BGR24,

  877.     AV_PIX_FMT_RGB24,

  878. #endif

  879.     AV_PIX_FMT_NONE

  880. };

  881. 

  882. static av_cold void X264_init_static(AVCodec *codec)

  883. {

  884.     if (x264_bit_depth == 8)

  885.         codec->pix_fmts = pix_fmts_8bit;

  886.     else if (x264_bit_depth == 9)

  887.         codec->pix_fmts = pix_fmts_9bit;

  888.     else if (x264_bit_depth == 10)

  889.         codec->pix_fmts = pix_fmts_10bit;

  890. }

  891. 

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

  893. #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

  894. static const AVOption options[] = {

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

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

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

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

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

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

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

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

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

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

  905.     { "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 },

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

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

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

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

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

  911. #if X264_BUILD >= 144

  912.     { "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" },

  913. #endif

  914.     { "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},

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

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

  917.     { "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 },

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

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

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

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

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

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

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

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

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

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

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

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

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

  931.     { "mixed-refs",    "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_BOOL, { .i64 = -1}, -1, 1, VE },

  932.     { "8x8dct",        "High profile 8x8 transform.",                     OFFSET(dct8x8),        AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

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

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

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

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

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

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

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

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

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

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

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

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

  945.     { "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 },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  967. 

  968.     { "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 },

  969.     { NULL },

  970. };

  971. 

  972. static const AVCodecDefault x264_defaults[] = {

  973.     { "b",                "0" },

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

  975.     { "flags2",           "0" },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  990. #if FF_API_MOTION_EST

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

  992. #endif

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

  994. #if FF_API_PRIVATE_OPT

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

  996. #endif

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

  998. #if FF_API_CODER_TYPE

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

  1000. #endif

  1001.     { "cmp",              "-1" },

  1002.     { "threads",          AV_STRINGIFY(X264_THREADS_AUTO) },

  1003.     { "thread_type",      "0" },

  1004.     { "flags",            "+cgop" },

  1005.     { "rc_init_occupancy","-1" },

  1006.     { NULL },

  1007. };

  1008. 

  1009. #if CONFIG_LIBX264_ENCODER

  1010. static const AVClass x264_class = {

  1011.     .class_name = "libx264",

  1012.     .item_name  = av_default_item_name,

  1013.     .option     = options,

  1014.     .version    = LIBAVUTIL_VERSION_INT,

  1015. };

  1016. 

  1017. static const AVClass rgbclass = {

  1018.     .class_name = "libx264rgb",

  1019.     .item_name  = av_default_item_name,

  1020.     .option     = options,

  1021.     .version    = LIBAVUTIL_VERSION_INT,

  1022. };

  1023. 

  1024. AVCodec ff_libx264_encoder = {

  1025.     .name             = "libx264",

  1026.     .long_name        = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),

  1027.     .type             = AVMEDIA_TYPE_VIDEO,

  1028.     .id               = AV_CODEC_ID_H264,

  1029.     .priv_data_size   = sizeof(X264Context),

  1030.     .init             = X264_init,

  1031.     .encode2          = X264_frame,

  1032.     .close            = X264_close,

  1033.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,

  1034.     .priv_class       = &x264_class,

  1035.     .defaults         = x264_defaults,

  1036.     .init_static_data = X264_init_static,

  1037.     .caps_internal    = FF_CODEC_CAP_INIT_THREADSAFE |

  1038.                         FF_CODEC_CAP_INIT_CLEANUP,

  1039. };

  1040. 

  1041. AVCodec ff_libx264rgb_encoder = {

  1042.     .name           = "libx264rgb",

  1043.     .long_name      = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),

  1044.     .type           = AVMEDIA_TYPE_VIDEO,

  1045.     .id             = AV_CODEC_ID_H264,

  1046.     .priv_data_size = sizeof(X264Context),

  1047.     .init           = X264_init,

  1048.     .encode2        = X264_frame,

  1049.     .close          = X264_close,

  1050.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,

  1051.     .priv_class     = &rgbclass,

  1052.     .defaults       = x264_defaults,

  1053.     .pix_fmts       = pix_fmts_8bit_rgb,

  1054. };

  1055. #endif

  1056. 

  1057. #if CONFIG_LIBX262_ENCODER

  1058. static const AVClass X262_class = {

  1059.     .class_name = "libx262",

  1060.     .item_name  = av_default_item_name,

  1061.     .option     = options,

  1062.     .version    = LIBAVUTIL_VERSION_INT,

  1063. };

  1064. 

  1065. AVCodec ff_libx262_encoder = {

  1066.     .name             = "libx262",

  1067.     .long_name        = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),

  1068.     .type             = AVMEDIA_TYPE_VIDEO,

  1069.     .id               = AV_CODEC_ID_MPEG2VIDEO,

  1070.     .priv_data_size   = sizeof(X264Context),

  1071.     .init             = X264_init,

  1072.     .encode2          = X264_frame,

  1073.     .close            = X264_close,

  1074.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,

  1075.     .priv_class       = &X262_class,

  1076.     .defaults         = x264_defaults,

  1077.     .pix_fmts         = pix_fmts_8bit,

  1078.     .caps_internal    = FF_CODEC_CAP_INIT_THREADSAFE |

  1079.                         FF_CODEC_CAP_INIT_CLEANUP,

  1080. };

  1081. #endif