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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/time.h"

  29. #include "libavutil/intreadwrite.h"

  30. #include "avcodec.h"

  31. #include "internal.h"

  32. 

  33. #if defined(_MSC_VER)

  34. #define X264_API_IMPORTS 1

  35. #endif

  36. 

  37. #include <x264.h>

  38. #include <float.h>

  39. #include <math.h>

  40. #include <stdio.h>

  41. #include <stdlib.h>

  42. #include <string.h>

  43. 

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

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

  46. #define MB_SIZE 16

  47. 

  48. typedef struct X264Opaque {

  49.     int64_t reordered_opaque;

  50.     int64_t wallclock;

  51. } X264Opaque;

  52. 

  53. typedef struct X264Context {

  54.     AVClass        *class;

  55.     x264_param_t    params;

  56.     x264_t         *enc;

  57.     x264_picture_t  pic;

  58.     uint8_t        *sei;

  59.     int             sei_size;

  60.     char *preset;

  61.     char *tune;

  62.     char *profile;

  63.     char *level;

  64.     int fastfirstpass;

  65.     char *wpredp;

  66.     char *x264opts;

  67.     float crf;

  68.     float crf_max;

  69.     int cqp;

  70.     int aq_mode;

  71.     float aq_strength;

  72.     char *psy_rd;

  73.     int psy;

  74.     int rc_lookahead;

  75.     int weightp;

  76.     int weightb;

  77.     int ssim;

  78.     int intra_refresh;

  79.     int bluray_compat;

  80.     int b_bias;

  81.     int b_pyramid;

  82.     int mixed_refs;

  83.     int dct8x8;

  84.     int fast_pskip;

  85.     int aud;

  86.     int mbtree;

  87.     char *deblock;

  88.     float cplxblur;

  89.     char *partitions;

  90.     int direct_pred;

  91.     int slice_max_size;

  92.     char *stats;

  93.     int nal_hrd;

  94.     int avcintra_class;

  95.     int motion_est;

  96.     int forced_idr;

  97.     int coder;

  98.     int a53_cc;

  99.     int b_frame_strategy;

  100.     int chroma_offset;

  101.     int scenechange_threshold;

  102.     int noise_reduction;

  103. 

  104.     AVDictionary *x264_params;

  105. 

  106.     int nb_reordered_opaque, next_reordered_opaque;

  107.     X264Opaque *reordered_opaque;

  108. 

  109.     /**

  110.      * If the encoder does not support ROI then warn the first time we

  111.      * encounter a frame with ROI side data.

  112.      */

  113.     int roi_warned;

  114. } X264Context;

  115. 

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

  117. {

  118.     static const int level_map[] = {

  119.         [X264_LOG_ERROR]   = AV_LOG_ERROR,

  120.         [X264_LOG_WARNING] = AV_LOG_WARNING,

  121.         [X264_LOG_INFO]    = AV_LOG_INFO,

  122.         [X264_LOG_DEBUG]   = AV_LOG_DEBUG

  123.     };

  124. 

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

  126.         return;

  127. 

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

  129. }

  130. 

  131. 

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

  133.                        const x264_nal_t *nals, int nnal)

  134. {

  135.     X264Context *x4 = ctx->priv_data;

  136.     uint8_t *p;

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

  138. 

  139.     if (!nnal)

  140.         return 0;

  141. 

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

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

  144. 

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

  146.         return ret;

  147. 

  148.     p = pkt->data;

  149. 

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

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

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

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

  154.             return -1;

  155.         }

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

  157.         p += x4->sei_size;

  158.         x4->sei_size = 0;

  159.         av_freep(&x4->sei);

  160.     }

  161. 

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

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

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

  165.     }

  166. 

  167.     return 1;

  168. }

  169. 

  170. static int avfmt2_num_planes(int avfmt)

  171. {

  172.     switch (avfmt) {

  173.     case AV_PIX_FMT_YUV420P:

  174.     case AV_PIX_FMT_YUVJ420P:

  175.     case AV_PIX_FMT_YUV420P9:

  176.     case AV_PIX_FMT_YUV420P10:

  177.     case AV_PIX_FMT_YUV444P:

  178.         return 3;

  179. 

  180.     case AV_PIX_FMT_BGR0:

  181.     case AV_PIX_FMT_BGR24:

  182.     case AV_PIX_FMT_RGB24:

  183.     case AV_PIX_FMT_GRAY8:

  184.     case AV_PIX_FMT_GRAY10:

  185.         return 1;

  186. 

  187.     default:

  188.         return 3;

  189.     }

  190. }

  191. 

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

  193. {

  194.     X264Context *x4 = ctx->priv_data;

  195.     AVFrameSideData *side_data;

  196. 

  197. 

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

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

  200. 

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

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

  203.     }

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

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

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

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

  208.     }

  209. 

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

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

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

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

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

  215.     }

  216. 

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

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

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

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

  221.     }

  222. 

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

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

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

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

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

  228.     }

  229. 

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

  231.         x4->cqp >= 0 &&

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

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

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

  235.     }

  236. 

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

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

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

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

  241.     }

  242.   }

  243. 

  244.     side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_STEREO3D);

  245.     if (side_data) {

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

  247.         int fpa_type;

  248. 

  249.         switch (stereo->type) {

  250.         case AV_STEREO3D_CHECKERBOARD:

  251.             fpa_type = 0;

  252.             break;

  253.         case AV_STEREO3D_COLUMNS:

  254.             fpa_type = 1;

  255.             break;

  256.         case AV_STEREO3D_LINES:

  257.             fpa_type = 2;

  258.             break;

  259.         case AV_STEREO3D_SIDEBYSIDE:

  260.             fpa_type = 3;

  261.             break;

  262.         case AV_STEREO3D_TOPBOTTOM:

  263.             fpa_type = 4;

  264.             break;

  265.         case AV_STEREO3D_FRAMESEQUENCE:

  266.             fpa_type = 5;

  267.             break;

  268. #if X264_BUILD >= 145

  269.         case AV_STEREO3D_2D:

  270.             fpa_type = 6;

  271.             break;

  272. #endif

  273.         default:

  274.             fpa_type = -1;

  275.             break;

  276.         }

  277. 

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

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

  280.             av_log(ctx, AV_LOG_WARNING,

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

  282.             fpa_type = -1;

  283.         }

  284. 

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

  286.             x4->params.i_frame_packing = fpa_type;

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

  288.         }

  289.     }

  290. }

  291. 

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

  293.                       int *got_packet)

  294. {

  295.     X264Context *x4 = ctx->priv_data;

  296.     x264_nal_t *nal;

  297.     int nnal, i, ret;

  298.     x264_picture_t pic_out = {0};

  299.     int pict_type;

  300.     int bit_depth;

  301.     int64_t wallclock = 0;

  302.     X264Opaque *out_opaque;

  303.     AVFrameSideData *sd;

  304. 

  305.     x264_picture_init( &x4->pic );

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

  307. #if X264_BUILD >= 153

  308.     bit_depth = x4->params.i_bitdepth;

  309. #else

  310.     bit_depth = x264_bit_depth;

  311. #endif

  312.     if (bit_depth > 8)

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

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

  315. 

  316.     if (frame) {

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

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

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

  320.         }

  321. 

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

  323. 

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

  325.         x4->reordered_opaque[x4->next_reordered_opaque].wallclock = wallclock;

  326.         if (ctx->export_side_data & AV_CODEC_EXPORT_DATA_PRFT)

  327.             x4->reordered_opaque[x4->next_reordered_opaque].wallclock = av_gettime();

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

  329.         x4->next_reordered_opaque++;

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

  331. 

  332.         switch (frame->pict_type) {

  333.         case AV_PICTURE_TYPE_I:

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

  335.                                                 : X264_TYPE_KEYFRAME;

  336.             break;

  337.         case AV_PICTURE_TYPE_P:

  338.             x4->pic.i_type = X264_TYPE_P;

  339.             break;

  340.         case AV_PICTURE_TYPE_B:

  341.             x4->pic.i_type = X264_TYPE_B;

  342.             break;

  343.         default:

  344.             x4->pic.i_type = X264_TYPE_AUTO;

  345.             break;

  346.         }

  347.         reconfig_encoder(ctx, frame);

  348. 

  349.         if (x4->a53_cc) {

  350.             void *sei_data;

  351.             size_t sei_size;

  352. 

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

  354.             if (ret < 0) {

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

  356.             } else if (sei_data) {

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

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

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

  360.                     av_free(sei_data);

  361.                 } else {

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

  363. 

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

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

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

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

  368.                 }

  369.             }

  370.         }

  371. 

  372.         sd = av_frame_get_side_data(frame, AV_FRAME_DATA_REGIONS_OF_INTEREST);

  373.         if (sd) {

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

  375.                 if (!x4->roi_warned) {

  376.                     x4->roi_warned = 1;

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

  378.                 }

  379.             } else {

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

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

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

  383.                     int qp_range = 51 + 6 * (bit_depth - 8);

  384.                     int nb_rois;

  385.                     const AVRegionOfInterest *roi;

  386.                     uint32_t roi_size;

  387.                     float *qoffsets;

  388. 

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

  390.                     roi_size = roi->self_size;

  391.                     if (!roi_size || sd->size % roi_size != 0) {

  392.                         av_log(ctx, AV_LOG_ERROR, "Invalid AVRegionOfInterest.self_size.\n");

  393.                         return AVERROR(EINVAL);

  394.                     }

  395.                     nb_rois = sd->size / roi_size;

  396. 

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

  398.                     if (!qoffsets)

  399.                         return AVERROR(ENOMEM);

  400. 

  401.                     // This list must be iterated in reverse because the first

  402.                     // region in the list applies when regions overlap.

  403.                     for (int i = nb_rois - 1; i >= 0; i--) {

  404.                         int startx, endx, starty, endy;

  405.                         float qoffset;

  406. 

  407.                         roi = (const AVRegionOfInterest*)(sd->data + roi_size * i);

  408. 

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

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

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

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

  413. 

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

  415.                             av_free(qoffsets);

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

  417.                             return AVERROR(EINVAL);

  418.                         }

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

  420.                         qoffset = av_clipf(qoffset * qp_range, -qp_range, +qp_range);

  421. 

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

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

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

  425.                             }

  426.                         }

  427.                     }

  428. 

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

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

  431.                 } else {

  432.                     if (!x4->roi_warned) {

  433.                         x4->roi_warned = 1;

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

  435.                     }

  436.                 }

  437.             }

  438.         }

  439.     }

  440. 

  441.     do {

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

  443.             return AVERROR_EXTERNAL;

  444. 

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

  446.         if (ret < 0)

  447.             return ret;

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

  449. 

  450.     if (!ret)

  451.         return 0;

  452. 

  453.     pkt->pts = pic_out.i_pts;

  454.     pkt->dts = pic_out.i_dts;

  455. 

  456.     out_opaque = pic_out.opaque;

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

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

  459.         ctx->reordered_opaque = out_opaque->reordered_opaque;

  460.         wallclock = out_opaque->wallclock;

  461.     } else {

  462.         // Unexpected opaque pointer on picture output

  463.         ctx->reordered_opaque = 0;

  464.     }

  465. 

  466.     switch (pic_out.i_type) {

  467.     case X264_TYPE_IDR:

  468.     case X264_TYPE_I:

  469.         pict_type = AV_PICTURE_TYPE_I;

  470.         break;

  471.     case X264_TYPE_P:

  472.         pict_type = AV_PICTURE_TYPE_P;

  473.         break;

  474.     case X264_TYPE_B:

  475.     case X264_TYPE_BREF:

  476.         pict_type = AV_PICTURE_TYPE_B;

  477.         break;

  478.     default:

  479.         pict_type = AV_PICTURE_TYPE_NONE;

  480.     }

  481. #if FF_API_CODED_FRAME

  482. FF_DISABLE_DEPRECATION_WARNINGS

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

  484. FF_ENABLE_DEPRECATION_WARNINGS

  485. #endif

  486. 

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

  488.     if (ret) {

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

  490.         if (wallclock)

  491.             ff_side_data_set_prft(pkt, wallclock);

  492. 

  493. #if FF_API_CODED_FRAME

  494. FF_DISABLE_DEPRECATION_WARNINGS

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

  496. FF_ENABLE_DEPRECATION_WARNINGS

  497. #endif

  498.     }

  499. 

  500.     *got_packet = ret;

  501.     return 0;

  502. }

  503. 

  504. static av_cold int X264_close(AVCodecContext *avctx)

  505. {

  506.     X264Context *x4 = avctx->priv_data;

  507. 

  508.     av_freep(&avctx->extradata);

  509.     av_freep(&x4->sei);

  510.     av_freep(&x4->reordered_opaque);

  511. 

  512.     if (x4->enc) {

  513.         x264_encoder_close(x4->enc);

  514.         x4->enc = NULL;

  515.     }

  516. 

  517.     return 0;

  518. }

  519. 

  520. #define OPT_STR(opt, param)                                                   \

  521.     do {                                                                      \

  522.         int ret;                                                              \

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

  524.             if(ret == X264_PARAM_BAD_NAME)                                    \

  525.                 av_log(avctx, AV_LOG_ERROR,                                   \

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

  527.             else                                                              \

  528.                 av_log(avctx, AV_LOG_ERROR,                                   \

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

  530.             return -1;                                                        \

  531.         }                                                                     \

  532.     } while (0)

  533. 

  534. static int convert_pix_fmt(enum AVPixelFormat pix_fmt)

  535. {

  536.     switch (pix_fmt) {

  537.     case AV_PIX_FMT_YUV420P:

  538.     case AV_PIX_FMT_YUVJ420P:

  539.     case AV_PIX_FMT_YUV420P9:

  540.     case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;

  541.     case AV_PIX_FMT_YUV422P:

  542.     case AV_PIX_FMT_YUVJ422P:

  543.     case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;

  544.     case AV_PIX_FMT_YUV444P:

  545.     case AV_PIX_FMT_YUVJ444P:

  546.     case AV_PIX_FMT_YUV444P9:

  547.     case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;

  548. #if CONFIG_LIBX264RGB_ENCODER

  549.     case AV_PIX_FMT_BGR0:

  550.         return X264_CSP_BGRA;

  551.     case AV_PIX_FMT_BGR24:

  552.         return X264_CSP_BGR;

  553. 

  554.     case AV_PIX_FMT_RGB24:

  555.         return X264_CSP_RGB;

  556. #endif

  557.     case AV_PIX_FMT_NV12:      return X264_CSP_NV12;

  558.     case AV_PIX_FMT_NV16:

  559.     case AV_PIX_FMT_NV20:      return X264_CSP_NV16;

  560. #ifdef X264_CSP_NV21

  561.     case AV_PIX_FMT_NV21:      return X264_CSP_NV21;

  562. #endif

  563. #ifdef X264_CSP_I400

  564.     case AV_PIX_FMT_GRAY8:

  565.     case AV_PIX_FMT_GRAY10:    return X264_CSP_I400;

  566. #endif

  567.     };

  568.     return 0;

  569. }

  570. 

  571. #define PARSE_X264_OPT(name, var)\

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

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

  574.         return AVERROR(EINVAL);\

  575.     }

  576. 

  577. static av_cold int X264_init(AVCodecContext *avctx)

  578. {

  579.     X264Context *x4 = avctx->priv_data;

  580.     AVCPBProperties *cpb_props;

  581.     int sw,sh;

  582. 

  583.     if (avctx->global_quality > 0)

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

  585. 

  586. #if CONFIG_LIBX262_ENCODER

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

  588.         x4->params.b_mpeg2 = 1;

  589.         x264_param_default_mpeg2(&x4->params);

  590.     } else

  591. #endif

  592.     x264_param_default(&x4->params);

  593. 

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

  595. 

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

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

  598.             int i;

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

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

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

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

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

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

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

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

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

  608.             return AVERROR(EINVAL);

  609.         }

  610. 

  611.     if (avctx->level > 0)

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

  613. 

  614.     x4->params.pf_log               = X264_log;

  615.     x4->params.p_log_private        = avctx;

  616.     x4->params.i_log_level          = X264_LOG_DEBUG;

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

  618. #if X264_BUILD >= 153

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

  620. #endif

  621. 

  622.     PARSE_X264_OPT("weightp", wpredp);

  623. 

  624.     if (avctx->bit_rate) {

  625.         if (avctx->bit_rate / 1000 > INT_MAX || avctx->rc_max_rate / 1000 > INT_MAX) {

  626.             av_log(avctx, AV_LOG_ERROR, "bit_rate and rc_max_rate > %d000 not supported by libx264\n", INT_MAX);

  627.             return AVERROR(EINVAL);

  628.         }

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

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

  631.     }

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

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

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

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

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

  637.     } else {

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

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

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

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

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

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

  644.         }

  645. 

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

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

  648.     }

  649. 

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

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

  652.         x4->params.rc.f_vbv_buffer_init =

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

  654.     }

  655. 

  656.     PARSE_X264_OPT("level", level);

  657. 

  658.     if (avctx->i_quant_factor > 0)

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

  660.     if (avctx->b_quant_factor > 0)

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

  662. 

  663. #if FF_API_PRIVATE_OPT

  664. FF_DISABLE_DEPRECATION_WARNINGS

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

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

  667. FF_ENABLE_DEPRECATION_WARNINGS

  668. #endif

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

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

  671. 

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

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

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

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

  676. 

  677. #if FF_API_PRIVATE_OPT

  678. FF_DISABLE_DEPRECATION_WARNINGS

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

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

  681. FF_ENABLE_DEPRECATION_WARNINGS

  682. #endif

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

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

  685. 

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

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

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

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

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

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

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

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

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

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

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

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

  698.     else if (x4->params.i_level_idc > 0) {

  699.         int i;

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

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

  702. 

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

  704.             if (x264_levels[i].level_idc == x4->params.i_level_idc)

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

  706.     }

  707. 

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

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

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

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

  712. #if FF_API_PRIVATE_OPT

  713.     FF_DISABLE_DEPRECATION_WARNINGS

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

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

  716.     FF_ENABLE_DEPRECATION_WARNINGS

  717. #endif

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

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

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

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

  722. #if FF_API_PRIVATE_OPT

  723. FF_DISABLE_DEPRECATION_WARNINGS

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

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

  726. FF_ENABLE_DEPRECATION_WARNINGS

  727. #endif

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

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

  730. #if FF_API_CODER_TYPE

  731. FF_DISABLE_DEPRECATION_WARNINGS

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

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

  734. FF_ENABLE_DEPRECATION_WARNINGS

  735. #endif

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

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

  738. 

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

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

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

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

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

  744.     PARSE_X264_OPT("deblock", deblock);

  745.     PARSE_X264_OPT("partitions", partitions);

  746.     PARSE_X264_OPT("stats", stats);

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

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

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

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

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

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

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

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

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

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

  757. 

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

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

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

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

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

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

  764.         x4->params.b_vfr_input = 0;

  765.     }

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

  767. #if X264_BUILD >= 142

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

  769. #else

  770.         av_log(avctx, AV_LOG_ERROR,

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

  772. #endif

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  789. 

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

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

  792. 

  793.     if (x4->fastfirstpass)

  794.         x264_param_apply_fastfirstpass(&x4->params);

  795. 

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

  797.     if (!x4->profile)

  798.         switch (avctx->profile) {

  799.         case FF_PROFILE_H264_BASELINE:

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

  801.             break;

  802.         case FF_PROFILE_H264_HIGH:

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

  804.             break;

  805.         case FF_PROFILE_H264_HIGH_10:

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

  807.             break;

  808.         case FF_PROFILE_H264_HIGH_422:

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

  810.             break;

  811.         case FF_PROFILE_H264_HIGH_444:

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

  813.             break;

  814.         case FF_PROFILE_H264_MAIN:

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

  816.             break;

  817.         default:

  818.             break;

  819.         }

  820. 

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

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

  823. 

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

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

  826. 

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

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

  829. 

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

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

  832. 

  833.     if (x4->profile)

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

  835.             int i;

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

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

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

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

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

  841.             return AVERROR(EINVAL);

  842.         }

  843. 

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

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

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

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

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

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

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

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

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

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

  854.     } else {

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

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

  857.     }

  858. 

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

  860. 

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

  862.     if (avctx->thread_type)

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

  864. 

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

  866. 

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

  868. 

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

  870. 

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

  872.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||

  873.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||

  874.                                  avctx->color_range == AVCOL_RANGE_JPEG;

  875. 

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

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

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

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

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

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

  882. 

  883.     if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)

  884.         x4->params.b_repeat_headers = 0;

  885. 

  886.     if(x4->x264opts){

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

  888.         while(p){

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

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

  891.                 OPT_STR(param, "1");

  892.             }else

  893.                 OPT_STR(param, val);

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

  895.             p+=!!p;

  896.         }

  897.     }

  898. 

  899. 

  900.     {

  901.         AVDictionaryEntry *en = NULL;

  902.         while (en = av_dict_get(x4->x264_params, "", en, AV_DICT_IGNORE_SUFFIX)) {

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

  904.                av_log(avctx, AV_LOG_WARNING,

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

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

  907.         }

  908.     }

  909. 

  910.     // update AVCodecContext with x264 parameters

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

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

  913.     if (avctx->max_b_frames < 0)

  914.         avctx->max_b_frames = 0;

  915. 

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

  917. 

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

  919.     if (!x4->enc)

  920.         return AVERROR_EXTERNAL;

  921. 

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

  923.         x264_nal_t *nal;

  924.         uint8_t *p;

  925.         int nnal, s, i;

  926. 

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

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

  929.         if (!p)

  930.             return AVERROR(ENOMEM);

  931. 

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

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

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

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

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

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

  938.                 if (!x4->sei)

  939.                     return AVERROR(ENOMEM);

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

  941.                 continue;

  942.             }

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

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

  945.         }

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

  947.     }

  948. 

  949.     cpb_props = ff_add_cpb_side_data(avctx);

  950.     if (!cpb_props)

  951.         return AVERROR(ENOMEM);

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

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

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

  955. 

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

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

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

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

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

  961.     if (!x4->reordered_opaque)

  962.         return AVERROR(ENOMEM);

  963. 

  964.     return 0;

  965. }

  966. 

  967. static const enum AVPixelFormat pix_fmts_8bit[] = {

  968.     AV_PIX_FMT_YUV420P,

  969.     AV_PIX_FMT_YUVJ420P,

  970.     AV_PIX_FMT_YUV422P,

  971.     AV_PIX_FMT_YUVJ422P,

  972.     AV_PIX_FMT_YUV444P,

  973.     AV_PIX_FMT_YUVJ444P,

  974.     AV_PIX_FMT_NV12,

  975.     AV_PIX_FMT_NV16,

  976. #ifdef X264_CSP_NV21

  977.     AV_PIX_FMT_NV21,

  978. #endif

  979.     AV_PIX_FMT_NONE

  980. };

  981. static const enum AVPixelFormat pix_fmts_9bit[] = {

  982.     AV_PIX_FMT_YUV420P9,

  983.     AV_PIX_FMT_YUV444P9,

  984.     AV_PIX_FMT_NONE

  985. };

  986. static const enum AVPixelFormat pix_fmts_10bit[] = {

  987.     AV_PIX_FMT_YUV420P10,

  988.     AV_PIX_FMT_YUV422P10,

  989.     AV_PIX_FMT_YUV444P10,

  990.     AV_PIX_FMT_NV20,

  991.     AV_PIX_FMT_NONE

  992. };

  993. static const enum AVPixelFormat pix_fmts_all[] = {

  994.     AV_PIX_FMT_YUV420P,

  995.     AV_PIX_FMT_YUVJ420P,

  996.     AV_PIX_FMT_YUV422P,

  997.     AV_PIX_FMT_YUVJ422P,

  998.     AV_PIX_FMT_YUV444P,

  999.     AV_PIX_FMT_YUVJ444P,

  1000.     AV_PIX_FMT_NV12,

  1001.     AV_PIX_FMT_NV16,

  1002. #ifdef X264_CSP_NV21

  1003.     AV_PIX_FMT_NV21,

  1004. #endif

  1005.     AV_PIX_FMT_YUV420P10,

  1006.     AV_PIX_FMT_YUV422P10,

  1007.     AV_PIX_FMT_YUV444P10,

  1008.     AV_PIX_FMT_NV20,

  1009. #ifdef X264_CSP_I400

  1010.     AV_PIX_FMT_GRAY8,

  1011.     AV_PIX_FMT_GRAY10,

  1012. #endif

  1013.     AV_PIX_FMT_NONE

  1014. };

  1015. #if CONFIG_LIBX264RGB_ENCODER

  1016. static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {

  1017.     AV_PIX_FMT_BGR0,

  1018.     AV_PIX_FMT_BGR24,

  1019.     AV_PIX_FMT_RGB24,

  1020.     AV_PIX_FMT_NONE

  1021. };

  1022. #endif

  1023. 

  1024. static av_cold void X264_init_static(AVCodec *codec)

  1025. {

  1026. #if X264_BUILD < 153

  1027.     if (x264_bit_depth == 8)

  1028.         codec->pix_fmts = pix_fmts_8bit;

  1029.     else if (x264_bit_depth == 9)

  1030.         codec->pix_fmts = pix_fmts_9bit;

  1031.     else if (x264_bit_depth == 10)

  1032.         codec->pix_fmts = pix_fmts_10bit;

  1033. #else

  1034.     codec->pix_fmts = pix_fmts_all;

  1035. #endif

  1036. }

  1037. 

  1038. #define OFFSET(x) offsetof(X264Context, x)

  1039. #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

  1040. static const AVOption options[] = {

  1041.     { "preset",        "Set the encoding preset (cf. x264 --fullhelp)",   OFFSET(preset),        AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},

  1042.     { "tune",          "Tune the encoding params (cf. x264 --fullhelp)",  OFFSET(tune),          AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

  1043.     { "profile",       "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile),       AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

  1044.     { "fastfirstpass", "Use fast settings when encoding first pass",      OFFSET(fastfirstpass), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE},

  1045.     {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1046.     {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1047.     {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1048.     {"a53cc",          "Use A53 Closed Captions (if available)",          OFFSET(a53_cc),        AV_OPT_TYPE_BOOL,   {.i64 = 1}, 0, 1, VE},

  1049.     {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1050.     { "crf",           "Select the quality for constant quality mode",    OFFSET(crf),           AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE },

  1051.     { "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 },

  1052.     { "qp",            "Constant quantization parameter rate control method",OFFSET(cqp),        AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE },

  1053.     { "aq-mode",       "AQ method",                                       OFFSET(aq_mode),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},

  1054.     { "none",          NULL,                              0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE},         INT_MIN, INT_MAX, VE, "aq_mode" },

  1055.     { "variance",      "Variance AQ (complexity mask)",   0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE},     INT_MIN, INT_MAX, VE, "aq_mode" },

  1056.     { "autovariance",  "Auto-variance AQ",                0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },

  1057. #if X264_BUILD >= 144

  1058.     { "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" },

  1059. #endif

  1060.     { "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},

  1061.     { "psy",           "Use psychovisual optimizations.",                 OFFSET(psy),           AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1062.     { "psy-rd",        "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING,  {0 }, 0, 0, VE},

  1063.     { "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 },

  1064.     { "weightb",       "Weighted prediction for B-frames.",               OFFSET(weightb),       AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1065.     { "weightp",       "Weighted prediction analysis method.",            OFFSET(weightp),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },

  1066.     { "none",          NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE},   INT_MIN, INT_MAX, VE, "weightp" },

  1067.     { "simple",        NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },

  1068.     { "smart",         NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART},  INT_MIN, INT_MAX, VE, "weightp" },

  1069.     { "ssim",          "Calculate and print SSIM stats.",                 OFFSET(ssim),          AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1070.     { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1071.     { "bluray-compat", "Bluray compatibility workarounds.",               OFFSET(bluray_compat) ,AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1072.     { "b-bias",        "Influences how often B-frames are used",          OFFSET(b_bias),        AV_OPT_TYPE_INT,    { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },

  1073.     { "b-pyramid",     "Keep some B-frames as references.",               OFFSET(b_pyramid),     AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },

  1074.     { "none",          NULL,                                  0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE},   INT_MIN, INT_MAX, VE, "b_pyramid" },

  1075.     { "strict",        "Strictly hierarchical pyramid",       0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },

  1076.     { "normal",        "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },

  1077.     { "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 },

  1078.     { "8x8dct",        "High profile 8x8 transform.",                     OFFSET(dct8x8),        AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1079.     { "fast-pskip",    NULL,                                              OFFSET(fast_pskip),    AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1080.     { "aud",           "Use access unit delimiters.",                     OFFSET(aud),           AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1081.     { "mbtree",        "Use macroblock tree ratecontrol.",                OFFSET(mbtree),        AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1082.     { "deblock",       "Loop filter parameters, in <alpha:beta> form.",   OFFSET(deblock),       AV_OPT_TYPE_STRING, { 0 },  0, 0, VE},

  1083.     { "cplxblur",      "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE},

  1084.     { "partitions",    "A comma-separated list of partitions to consider. "

  1085.                        "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

  1086.     { "direct-pred",   "Direct MV prediction mode",                       OFFSET(direct_pred),   AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },

  1087.     { "none",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE },     0, 0, VE, "direct-pred" },

  1088.     { "spatial",       NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL },  0, 0, VE, "direct-pred" },

  1089.     { "temporal",      NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },

  1090.     { "auto",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO },     0, 0, VE, "direct-pred" },

  1091.     { "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 },

  1092.     { "stats",         "Filename for 2 pass stats",                       OFFSET(stats),         AV_OPT_TYPE_STRING, { 0 },  0,       0, VE },

  1093.     { "nal-hrd",       "Signal HRD information (requires vbv-bufsize; "

  1094.                        "cbr not allowed in .mp4)",                        OFFSET(nal_hrd),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },

  1095.     { "none",          NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },

  1096.     { "vbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },

  1097.     { "cbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },

  1098.     { "avcintra-class","AVC-Intra class 50/100/200",                      OFFSET(avcintra_class),AV_OPT_TYPE_INT,     { .i64 = -1 }, -1, 200   , VE},

  1099.     { "me_method",    "Set motion estimation method",                     OFFSET(motion_est),    AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},

  1100.     { "motion-est",   "Set motion estimation method",                     OFFSET(motion_est),    AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},

  1101.     { "dia",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_DIA },  INT_MIN, INT_MAX, VE, "motion-est" },

  1102.     { "hex",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_HEX },  INT_MIN, INT_MAX, VE, "motion-est" },

  1103.     { "umh",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_UMH },  INT_MIN, INT_MAX, VE, "motion-est" },

  1104.     { "esa",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_ESA },  INT_MIN, INT_MAX, VE, "motion-est" },

  1105.     { "tesa",          NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },

  1106.     { "forced-idr",   "If forcing keyframes, force them as IDR frames.",                                  OFFSET(forced_idr),  AV_OPT_TYPE_BOOL,   { .i64 = 0 }, -1, 1, VE },

  1107.     { "coder",    "Coder type",                                           OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE, "coder" },

  1108.     { "default",          NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, INT_MIN, INT_MAX, VE, "coder" },

  1109.     { "cavlc",            NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 },  INT_MIN, INT_MAX, VE, "coder" },

  1110.     { "cabac",            NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 },  INT_MIN, INT_MAX, VE, "coder" },

  1111.     { "vlc",              NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 },  INT_MIN, INT_MAX, VE, "coder" },

  1112.     { "ac",               NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 },  INT_MIN, INT_MAX, VE, "coder" },

  1113.     { "b_strategy",   "Strategy to choose between I/P/B-frames",          OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, VE },

  1114.     { "chromaoffset", "QP difference between chroma and luma",            OFFSET(chroma_offset), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },

  1115.     { "sc_threshold", "Scene change threshold",                           OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },

  1116.     { "noise_reduction", "Noise reduction",                               OFFSET(noise_reduction), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },

  1117. 

  1118.     { "x264-params",  "Override the x264 configuration using a :-separated list of key=value parameters", OFFSET(x264_params), AV_OPT_TYPE_DICT, { 0 }, 0, 0, VE },

  1119.     { NULL },

  1120. };

  1121. 

  1122. static const AVCodecDefault x264_defaults[] = {

  1123.     { "b",                "0" },

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

  1125.     { "flags2",           "0" },

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

  1127.     { "i_qfactor",        "-1" },

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

  1129.     { "qmin",             "-1" },

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

  1131.     { "qdiff",            "-1" },

  1132.     { "qblur",            "-1" },

  1133.     { "qcomp",            "-1" },

  1134. //     { "rc_lookahead",     "-1" },

  1135.     { "refs",             "-1" },

  1136. #if FF_API_PRIVATE_OPT

  1137.     { "sc_threshold",     "-1" },

  1138. #endif

  1139.     { "trellis",          "-1" },

  1140. #if FF_API_PRIVATE_OPT

  1141.     { "nr",               "-1" },

  1142. #endif

  1143.     { "me_range",         "-1" },

  1144.     { "subq",             "-1" },

  1145. #if FF_API_PRIVATE_OPT

  1146.     { "b_strategy",       "-1" },

  1147. #endif

  1148.     { "keyint_min",       "-1" },

  1149. #if FF_API_CODER_TYPE

  1150.     { "coder",            "-1" },

  1151. #endif

  1152.     { "cmp",              "-1" },

  1153.     { "threads",          AV_STRINGIFY(X264_THREADS_AUTO) },

  1154.     { "thread_type",      "0" },

  1155.     { "flags",            "+cgop" },

  1156.     { "rc_init_occupancy","-1" },

  1157.     { NULL },

  1158. };

  1159. 

  1160. #if CONFIG_LIBX264_ENCODER

  1161. static const AVClass x264_class = {

  1162.     .class_name = "libx264",

  1163.     .item_name  = av_default_item_name,

  1164.     .option     = options,

  1165.     .version    = LIBAVUTIL_VERSION_INT,

  1166. };

  1167. 

  1168. AVCodec ff_libx264_encoder = {

  1169.     .name             = "libx264",

  1170.     .long_name        = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),

  1171.     .type             = AVMEDIA_TYPE_VIDEO,

  1172.     .id               = AV_CODEC_ID_H264,

  1173.     .priv_data_size   = sizeof(X264Context),

  1174.     .init             = X264_init,

  1175.     .encode2          = X264_frame,

  1176.     .close            = X264_close,

  1177.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |

  1178.                         AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,

  1179.     .priv_class       = &x264_class,

  1180.     .defaults         = x264_defaults,

  1181.     .init_static_data = X264_init_static,

  1182. #if X264_BUILD >= 158

  1183.     .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_INIT_THREADSAFE,

  1184. #else

  1185.     .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP,

  1186. #endif

  1187.     .wrapper_name     = "libx264",

  1188. };

  1189. #endif

  1190. 

  1191. #if CONFIG_LIBX264RGB_ENCODER

  1192. static const AVClass rgbclass = {

  1193.     .class_name = "libx264rgb",

  1194.     .item_name  = av_default_item_name,

  1195.     .option     = options,

  1196.     .version    = LIBAVUTIL_VERSION_INT,

  1197. };

  1198. 

  1199. AVCodec ff_libx264rgb_encoder = {

  1200.     .name           = "libx264rgb",

  1201.     .long_name      = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),

  1202.     .type           = AVMEDIA_TYPE_VIDEO,

  1203.     .id             = AV_CODEC_ID_H264,

  1204.     .priv_data_size = sizeof(X264Context),

  1205.     .init           = X264_init,

  1206.     .encode2        = X264_frame,

  1207.     .close          = X264_close,

  1208.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |

  1209.                       AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,

  1210.     .priv_class     = &rgbclass,

  1211.     .defaults       = x264_defaults,

  1212.     .pix_fmts       = pix_fmts_8bit_rgb,

  1213. #if X264_BUILD >= 158

  1214.     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_INIT_THREADSAFE,

  1215. #else

  1216.     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,

  1217. #endif

  1218.     .wrapper_name   = "libx264",

  1219. };

  1220. #endif

  1221. 

  1222. #if CONFIG_LIBX262_ENCODER

  1223. static const AVClass X262_class = {

  1224.     .class_name = "libx262",

  1225.     .item_name  = av_default_item_name,

  1226.     .option     = options,

  1227.     .version    = LIBAVUTIL_VERSION_INT,

  1228. };

  1229. 

  1230. AVCodec ff_libx262_encoder = {

  1231.     .name             = "libx262",

  1232.     .long_name        = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),

  1233.     .type             = AVMEDIA_TYPE_VIDEO,

  1234.     .id               = AV_CODEC_ID_MPEG2VIDEO,

  1235.     .priv_data_size   = sizeof(X264Context),

  1236.     .init             = X264_init,

  1237.     .encode2          = X264_frame,

  1238.     .close            = X264_close,

  1239.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |

  1240.                         AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,

  1241.     .priv_class       = &X262_class,

  1242.     .defaults         = x264_defaults,

  1243.     .pix_fmts         = pix_fmts_8bit,

  1244.     .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP,

  1245.     .wrapper_name     = "libx264",

  1246. };

  1247. #endif