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FFmpeg/libavcodec/libx264.c

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  1. /*

  2.  * H.264 encoding using the x264 library

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

  4.  *

  5.  * This file is part of FFmpeg.

  6.  *

  7.  * FFmpeg is free software; you can redistribute it and/or

  8.  * modify it under the terms of the GNU Lesser General Public

  9.  * License as published by the Free Software Foundation; either

  10.  * version 2.1 of the License, or (at your option) any later version.

  11.  *

  12.  * FFmpeg is distributed in the hope that it will be useful,

  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  15.  * Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public

  18.  * License along with FFmpeg; if not, write to the Free Software

  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  20.  */

  21. 

  22. #include "libavutil/eval.h"

  23. #include "libavutil/internal.h"

  24. #include "libavutil/opt.h"

  25. #include "libavutil/mem.h"

  26. #include "libavutil/pixdesc.h"

  27. #include "libavutil/stereo3d.h"

  28. #include "libavutil/intreadwrite.h"

  29. #include "avcodec.h"

  30. #include "internal.h"

  31. 

  32. #if defined(_MSC_VER)

  33. #define X264_API_IMPORTS 1

  34. #endif

  35. 

  36. #include <x264.h>

  37. #include <float.h>

  38. #include <math.h>

  39. #include <stdio.h>

  40. #include <stdlib.h>

  41. #include <string.h>

  42. 

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

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

  45. #define MB_SIZE 16

  46. 

  47. typedef struct X264Context {

  48.     AVClass        *class;

  49.     x264_param_t    params;

  50.     x264_t         *enc;

  51.     x264_picture_t  pic;

  52.     uint8_t        *sei;

  53.     int             sei_size;

  54.     char *preset;

  55.     char *tune;

  56.     char *profile;

  57.     char *level;

  58.     int fastfirstpass;

  59.     char *wpredp;

  60.     char *x264opts;

  61.     float crf;

  62.     float crf_max;

  63.     int cqp;

  64.     int aq_mode;

  65.     float aq_strength;

  66.     char *psy_rd;

  67.     int psy;

  68.     int rc_lookahead;

  69.     int weightp;

  70.     int weightb;

  71.     int ssim;

  72.     int intra_refresh;

  73.     int bluray_compat;

  74.     int b_bias;

  75.     int b_pyramid;

  76.     int mixed_refs;

  77.     int dct8x8;

  78.     int fast_pskip;

  79.     int aud;

  80.     int mbtree;

  81.     char *deblock;

  82.     float cplxblur;

  83.     char *partitions;

  84.     int direct_pred;

  85.     int slice_max_size;

  86.     char *stats;

  87.     int nal_hrd;

  88.     int avcintra_class;

  89.     int motion_est;

  90.     int forced_idr;

  91.     int coder;

  92.     int a53_cc;

  93.     int b_frame_strategy;

  94.     int chroma_offset;

  95.     int scenechange_threshold;

  96.     int noise_reduction;

  97. 

  98.     AVDictionary *x264_params;

  99. 

  100.     int nb_reordered_opaque, next_reordered_opaque;

  101.     int64_t *reordered_opaque;

  102. 

  103.     /**

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

  105.      * encounter a frame with ROI side data.

  106.      */

  107.     int roi_warned;

  108. } X264Context;

  109. 

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

  111. {

  112.     static const int level_map[] = {

  113.         [X264_LOG_ERROR]   = AV_LOG_ERROR,

  114.         [X264_LOG_WARNING] = AV_LOG_WARNING,

  115.         [X264_LOG_INFO]    = AV_LOG_INFO,

  116.         [X264_LOG_DEBUG]   = AV_LOG_DEBUG

  117.     };

  118. 

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

  120.         return;

  121. 

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

  123. }

  124. 

  125. 

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

  127.                        const x264_nal_t *nals, int nnal)

  128. {

  129.     X264Context *x4 = ctx->priv_data;

  130.     uint8_t *p;

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

  132. 

  133.     if (!nnal)

  134.         return 0;

  135. 

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

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

  138. 

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

  140.         return ret;

  141. 

  142.     p = pkt->data;

  143. 

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

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

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

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

  148.             return -1;

  149.         }

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

  151.         p += x4->sei_size;

  152.         x4->sei_size = 0;

  153.         av_freep(&x4->sei);

  154.     }

  155. 

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

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

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

  159.     }

  160. 

  161.     return 1;

  162. }

  163. 

  164. static int avfmt2_num_planes(int avfmt)

  165. {

  166.     switch (avfmt) {

  167.     case AV_PIX_FMT_YUV420P:

  168.     case AV_PIX_FMT_YUVJ420P:

  169.     case AV_PIX_FMT_YUV420P9:

  170.     case AV_PIX_FMT_YUV420P10:

  171.     case AV_PIX_FMT_YUV444P:

  172.         return 3;

  173. 

  174.     case AV_PIX_FMT_BGR0:

  175.     case AV_PIX_FMT_BGR24:

  176.     case AV_PIX_FMT_RGB24:

  177.     case AV_PIX_FMT_GRAY8:

  178.     case AV_PIX_FMT_GRAY10:

  179.         return 1;

  180. 

  181.     default:

  182.         return 3;

  183.     }

  184. }

  185. 

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

  187. {

  188.     X264Context *x4 = ctx->priv_data;

  189.     AVFrameSideData *side_data;

  190. 

  191. 

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

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

  194. 

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

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

  197.     }

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

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

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

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

  202.     }

  203. 

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

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

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

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

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

  209.     }

  210. 

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

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

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

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

  215.     }

  216. 

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

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

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

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

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

  222.     }

  223. 

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

  225.         x4->cqp >= 0 &&

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

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

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

  229.     }

  230. 

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

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

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

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

  235.     }

  236.   }

  237. 

  238.     side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_STEREO3D);

  239.     if (side_data) {

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

  241.         int fpa_type;

  242. 

  243.         switch (stereo->type) {

  244.         case AV_STEREO3D_CHECKERBOARD:

  245.             fpa_type = 0;

  246.             break;

  247.         case AV_STEREO3D_COLUMNS:

  248.             fpa_type = 1;

  249.             break;

  250.         case AV_STEREO3D_LINES:

  251.             fpa_type = 2;

  252.             break;

  253.         case AV_STEREO3D_SIDEBYSIDE:

  254.             fpa_type = 3;

  255.             break;

  256.         case AV_STEREO3D_TOPBOTTOM:

  257.             fpa_type = 4;

  258.             break;

  259.         case AV_STEREO3D_FRAMESEQUENCE:

  260.             fpa_type = 5;

  261.             break;

  262. #if X264_BUILD >= 145

  263.         case AV_STEREO3D_2D:

  264.             fpa_type = 6;

  265.             break;

  266. #endif

  267.         default:

  268.             fpa_type = -1;

  269.             break;

  270.         }

  271. 

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

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

  274.             av_log(ctx, AV_LOG_WARNING,

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

  276.             fpa_type = -1;

  277.         }

  278. 

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

  280.             x4->params.i_frame_packing = fpa_type;

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

  282.         }

  283.     }

  284. }

  285. 

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

  287.                       int *got_packet)

  288. {

  289.     X264Context *x4 = ctx->priv_data;

  290.     x264_nal_t *nal;

  291.     int nnal, i, ret;

  292.     x264_picture_t pic_out = {0};

  293.     int pict_type;

  294.     int bit_depth;

  295.     int64_t *out_opaque;

  296.     AVFrameSideData *sd;

  297. 

  298.     x264_picture_init( &x4->pic );

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

  300. #if X264_BUILD >= 153

  301.     bit_depth = x4->params.i_bitdepth;

  302. #else

  303.     bit_depth = x264_bit_depth;

  304. #endif

  305.     if (bit_depth > 8)

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

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

  308. 

  309.     if (frame) {

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

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

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

  313.         }

  314. 

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

  316. 

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

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

  319.         x4->next_reordered_opaque++;

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

  321. 

  322.         switch (frame->pict_type) {

  323.         case AV_PICTURE_TYPE_I:

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

  325.                                                 : X264_TYPE_KEYFRAME;

  326.             break;

  327.         case AV_PICTURE_TYPE_P:

  328.             x4->pic.i_type = X264_TYPE_P;

  329.             break;

  330.         case AV_PICTURE_TYPE_B:

  331.             x4->pic.i_type = X264_TYPE_B;

  332.             break;

  333.         default:

  334.             x4->pic.i_type = X264_TYPE_AUTO;

  335.             break;

  336.         }

  337.         reconfig_encoder(ctx, frame);

  338. 

  339.         if (x4->a53_cc) {

  340.             void *sei_data;

  341.             size_t sei_size;

  342. 

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

  344.             if (ret < 0) {

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

  346.             } else if (sei_data) {

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

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

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

  350.                     av_free(sei_data);

  351.                 } else {

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

  353. 

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

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

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

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

  358.                 }

  359.             }

  360.         }

  361. 

  362.         sd = av_frame_get_side_data(frame, AV_FRAME_DATA_REGIONS_OF_INTEREST);

  363.         if (sd) {

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

  365.                 if (!x4->roi_warned) {

  366.                     x4->roi_warned = 1;

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

  368.                 }

  369.             } else {

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

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

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

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

  374.                     int nb_rois;

  375.                     const AVRegionOfInterest *roi;

  376.                     uint32_t roi_size;

  377.                     float *qoffsets;

  378. 

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

  380.                     roi_size = roi->self_size;

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

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

  383.                         return AVERROR(EINVAL);

  384.                     }

  385.                     nb_rois = sd->size / roi_size;

  386. 

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

  388.                     if (!qoffsets)

  389.                         return AVERROR(ENOMEM);

  390. 

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

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

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

  394.                         int startx, endx, starty, endy;

  395.                         float qoffset;

  396. 

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

  398. 

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

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

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

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

  403. 

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

  405.                             av_free(qoffsets);

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

  407.                             return AVERROR(EINVAL);

  408.                         }

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

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

  411. 

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

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

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

  415.                             }

  416.                         }

  417.                     }

  418. 

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

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

  421.                 } else {

  422.                     if (!x4->roi_warned) {

  423.                         x4->roi_warned = 1;

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

  425.                     }

  426.                 }

  427.             }

  428.         }

  429.     }

  430. 

  431.     do {

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

  433.             return AVERROR_EXTERNAL;

  434. 

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

  436.         if (ret < 0)

  437.             return ret;

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

  439. 

  440.     pkt->pts = pic_out.i_pts;

  441.     pkt->dts = pic_out.i_dts;

  442. 

  443.     out_opaque = pic_out.opaque;

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

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

  446.         ctx->reordered_opaque = *out_opaque;

  447.     } else {

  448.         // Unexpected opaque pointer on picture output

  449.         ctx->reordered_opaque = 0;

  450.     }

  451. 

  452.     switch (pic_out.i_type) {

  453.     case X264_TYPE_IDR:

  454.     case X264_TYPE_I:

  455.         pict_type = AV_PICTURE_TYPE_I;

  456.         break;

  457.     case X264_TYPE_P:

  458.         pict_type = AV_PICTURE_TYPE_P;

  459.         break;

  460.     case X264_TYPE_B:

  461.     case X264_TYPE_BREF:

  462.         pict_type = AV_PICTURE_TYPE_B;

  463.         break;

  464.     default:

  465.         pict_type = AV_PICTURE_TYPE_NONE;

  466.     }

  467. #if FF_API_CODED_FRAME

  468. FF_DISABLE_DEPRECATION_WARNINGS

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

  470. FF_ENABLE_DEPRECATION_WARNINGS

  471. #endif

  472. 

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

  474.     if (ret) {

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

  476. 

  477. #if FF_API_CODED_FRAME

  478. FF_DISABLE_DEPRECATION_WARNINGS

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

  480. FF_ENABLE_DEPRECATION_WARNINGS

  481. #endif

  482.     }

  483. 

  484.     *got_packet = ret;

  485.     return 0;

  486. }

  487. 

  488. static av_cold int X264_close(AVCodecContext *avctx)

  489. {

  490.     X264Context *x4 = avctx->priv_data;

  491. 

  492.     av_freep(&avctx->extradata);

  493.     av_freep(&x4->sei);

  494.     av_freep(&x4->reordered_opaque);

  495. 

  496.     if (x4->enc) {

  497.         x264_encoder_close(x4->enc);

  498.         x4->enc = NULL;

  499.     }

  500. 

  501.     return 0;

  502. }

  503. 

  504. #define OPT_STR(opt, param)                                                   \

  505.     do {                                                                      \

  506.         int ret;                                                              \

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

  508.             if(ret == X264_PARAM_BAD_NAME)                                    \

  509.                 av_log(avctx, AV_LOG_ERROR,                                   \

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

  511.             else                                                              \

  512.                 av_log(avctx, AV_LOG_ERROR,                                   \

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

  514.             return -1;                                                        \

  515.         }                                                                     \

  516.     } while (0)

  517. 

  518. static int convert_pix_fmt(enum AVPixelFormat pix_fmt)

  519. {

  520.     switch (pix_fmt) {

  521.     case AV_PIX_FMT_YUV420P:

  522.     case AV_PIX_FMT_YUVJ420P:

  523.     case AV_PIX_FMT_YUV420P9:

  524.     case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;

  525.     case AV_PIX_FMT_YUV422P:

  526.     case AV_PIX_FMT_YUVJ422P:

  527.     case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;

  528.     case AV_PIX_FMT_YUV444P:

  529.     case AV_PIX_FMT_YUVJ444P:

  530.     case AV_PIX_FMT_YUV444P9:

  531.     case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;

  532. #if CONFIG_LIBX264RGB_ENCODER

  533.     case AV_PIX_FMT_BGR0:

  534.         return X264_CSP_BGRA;

  535.     case AV_PIX_FMT_BGR24:

  536.         return X264_CSP_BGR;

  537. 

  538.     case AV_PIX_FMT_RGB24:

  539.         return X264_CSP_RGB;

  540. #endif

  541.     case AV_PIX_FMT_NV12:      return X264_CSP_NV12;

  542.     case AV_PIX_FMT_NV16:

  543.     case AV_PIX_FMT_NV20:      return X264_CSP_NV16;

  544. #ifdef X264_CSP_NV21

  545.     case AV_PIX_FMT_NV21:      return X264_CSP_NV21;

  546. #endif

  547. #ifdef X264_CSP_I400

  548.     case AV_PIX_FMT_GRAY8:

  549.     case AV_PIX_FMT_GRAY10:    return X264_CSP_I400;

  550. #endif

  551.     };

  552.     return 0;

  553. }

  554. 

  555. #define PARSE_X264_OPT(name, var)\

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

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

  558.         return AVERROR(EINVAL);\

  559.     }

  560. 

  561. static av_cold int X264_init(AVCodecContext *avctx)

  562. {

  563.     X264Context *x4 = avctx->priv_data;

  564.     AVCPBProperties *cpb_props;

  565.     int sw,sh;

  566. 

  567.     if (avctx->global_quality > 0)

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

  569. 

  570. #if CONFIG_LIBX262_ENCODER

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

  572.         x4->params.b_mpeg2 = 1;

  573.         x264_param_default_mpeg2(&x4->params);

  574.     } else

  575. #endif

  576.     x264_param_default(&x4->params);

  577. 

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

  579. 

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

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

  582.             int i;

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

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

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

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

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

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

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

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

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

  592.             return AVERROR(EINVAL);

  593.         }

  594. 

  595.     if (avctx->level > 0)

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

  597. 

  598.     x4->params.pf_log               = X264_log;

  599.     x4->params.p_log_private        = avctx;

  600.     x4->params.i_log_level          = X264_LOG_DEBUG;

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

  602. #if X264_BUILD >= 153

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

  604. #endif

  605. 

  606.     PARSE_X264_OPT("weightp", wpredp);

  607. 

  608.     if (avctx->bit_rate) {

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

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

  611.             return AVERROR(EINVAL);

  612.         }

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

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

  615.     }

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

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

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

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

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

  621.     } else {

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

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

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

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

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

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

  628.         }

  629. 

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

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

  632.     }

  633. 

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

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

  636.         x4->params.rc.f_vbv_buffer_init =

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

  638.     }

  639. 

  640.     PARSE_X264_OPT("level", level);

  641. 

  642.     if (avctx->i_quant_factor > 0)

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

  644.     if (avctx->b_quant_factor > 0)

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

  646. 

  647. #if FF_API_PRIVATE_OPT

  648. FF_DISABLE_DEPRECATION_WARNINGS

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

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

  651. FF_ENABLE_DEPRECATION_WARNINGS

  652. #endif

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

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

  655. 

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

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

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

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

  660. 

  661. #if FF_API_PRIVATE_OPT

  662. FF_DISABLE_DEPRECATION_WARNINGS

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

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

  665. FF_ENABLE_DEPRECATION_WARNINGS

  666. #endif

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

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

  669. 

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

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

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

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

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

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

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

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

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

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

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

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

  682.     else if (x4->level) {

  683.         int i;

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

  685.         int level_id = -1;

  686.         char *tail;

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

  688. 

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

  690.             level_id = 9;

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

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

  693.             if (*tail)

  694.                 level_id = -1;

  695.         }

  696.         if (level_id <= 0)

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

  698. 

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

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

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

  702.     }

  703. 

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

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

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

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

  708. #if FF_API_PRIVATE_OPT

  709.     FF_DISABLE_DEPRECATION_WARNINGS

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

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

  712.     FF_ENABLE_DEPRECATION_WARNINGS

  713. #endif

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

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

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

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

  718. #if FF_API_PRIVATE_OPT

  719. FF_DISABLE_DEPRECATION_WARNINGS

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

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

  722. FF_ENABLE_DEPRECATION_WARNINGS

  723. #endif

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

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

  726. #if FF_API_CODER_TYPE

  727. FF_DISABLE_DEPRECATION_WARNINGS

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

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

  730. FF_ENABLE_DEPRECATION_WARNINGS

  731. #endif

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

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

  734. 

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

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

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

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

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

  740.     PARSE_X264_OPT("deblock", deblock);

  741.     PARSE_X264_OPT("partitions", partitions);

  742.     PARSE_X264_OPT("stats", stats);

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

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

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

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

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

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

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

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

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

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

  753. 

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

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

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

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

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

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

  760.         x4->params.b_vfr_input = 0;

  761.     }

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

  763. #if X264_BUILD >= 142

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

  765. #else

  766.         av_log(avctx, AV_LOG_ERROR,

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

  768. #endif

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  785. 

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

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

  788. 

  789.     if (x4->fastfirstpass)

  790.         x264_param_apply_fastfirstpass(&x4->params);

  791. 

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

  793.     if (!x4->profile)

  794.         switch (avctx->profile) {

  795.         case FF_PROFILE_H264_BASELINE:

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

  797.             break;

  798.         case FF_PROFILE_H264_HIGH:

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

  800.             break;

  801.         case FF_PROFILE_H264_HIGH_10:

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

  803.             break;

  804.         case FF_PROFILE_H264_HIGH_422:

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

  806.             break;

  807.         case FF_PROFILE_H264_HIGH_444:

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

  809.             break;

  810.         case FF_PROFILE_H264_MAIN:

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

  812.             break;

  813.         default:

  814.             break;

  815.         }

  816. 

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

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

  819. 

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

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

  822. 

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

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

  825. 

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

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

  828. 

  829.     if (x4->profile)

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

  831.             int i;

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

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

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

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

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

  837.             return AVERROR(EINVAL);

  838.         }

  839. 

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

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

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

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

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

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

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

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

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

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

  850.     } else {

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

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

  853.     }

  854. 

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

  856. 

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

  858.     if (avctx->thread_type)

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

  860. 

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

  862. 

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

  864. 

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

  866. 

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

  868.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||

  869.                                  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||

  870.                                  avctx->color_range == AVCOL_RANGE_JPEG;

  871. 

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

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

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

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

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

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

  878. 

  879.     if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)

  880.         x4->params.b_repeat_headers = 0;

  881. 

  882.     if(x4->x264opts){

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

  884.         while(p){

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

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

  887.                 OPT_STR(param, "1");

  888.             }else

  889.                 OPT_STR(param, val);

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

  891.             p+=!!p;

  892.         }

  893.     }

  894. 

  895. 

  896.     {

  897.         AVDictionaryEntry *en = NULL;

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

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

  900.                av_log(avctx, AV_LOG_WARNING,

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

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

  903.         }

  904.     }

  905. 

  906.     // update AVCodecContext with x264 parameters

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

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

  909.     if (avctx->max_b_frames < 0)

  910.         avctx->max_b_frames = 0;

  911. 

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

  913. 

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

  915.     if (!x4->enc)

  916.         return AVERROR_EXTERNAL;

  917. 

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

  919.         x264_nal_t *nal;

  920.         uint8_t *p;

  921.         int nnal, s, i;

  922. 

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

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

  925.         if (!p)

  926.             return AVERROR(ENOMEM);

  927. 

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

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

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

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

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

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

  934.                 if (!x4->sei)

  935.                     return AVERROR(ENOMEM);

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

  937.                 continue;

  938.             }

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

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

  941.         }

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

  943.     }

  944. 

  945.     cpb_props = ff_add_cpb_side_data(avctx);

  946.     if (!cpb_props)

  947.         return AVERROR(ENOMEM);

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

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

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

  951. 

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

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

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

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

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

  957.     if (!x4->reordered_opaque)

  958.         return AVERROR(ENOMEM);

  959. 

  960.     return 0;

  961. }

  962. 

  963. static const enum AVPixelFormat pix_fmts_8bit[] = {

  964.     AV_PIX_FMT_YUV420P,

  965.     AV_PIX_FMT_YUVJ420P,

  966.     AV_PIX_FMT_YUV422P,

  967.     AV_PIX_FMT_YUVJ422P,

  968.     AV_PIX_FMT_YUV444P,

  969.     AV_PIX_FMT_YUVJ444P,

  970.     AV_PIX_FMT_NV12,

  971.     AV_PIX_FMT_NV16,

  972. #ifdef X264_CSP_NV21

  973.     AV_PIX_FMT_NV21,

  974. #endif

  975.     AV_PIX_FMT_NONE

  976. };

  977. static const enum AVPixelFormat pix_fmts_9bit[] = {

  978.     AV_PIX_FMT_YUV420P9,

  979.     AV_PIX_FMT_YUV444P9,

  980.     AV_PIX_FMT_NONE

  981. };

  982. static const enum AVPixelFormat pix_fmts_10bit[] = {

  983.     AV_PIX_FMT_YUV420P10,

  984.     AV_PIX_FMT_YUV422P10,

  985.     AV_PIX_FMT_YUV444P10,

  986.     AV_PIX_FMT_NV20,

  987.     AV_PIX_FMT_NONE

  988. };

  989. static const enum AVPixelFormat pix_fmts_all[] = {

  990.     AV_PIX_FMT_YUV420P,

  991.     AV_PIX_FMT_YUVJ420P,

  992.     AV_PIX_FMT_YUV422P,

  993.     AV_PIX_FMT_YUVJ422P,

  994.     AV_PIX_FMT_YUV444P,

  995.     AV_PIX_FMT_YUVJ444P,

  996.     AV_PIX_FMT_NV12,

  997.     AV_PIX_FMT_NV16,

  998. #ifdef X264_CSP_NV21

  999.     AV_PIX_FMT_NV21,

  1000. #endif

  1001.     AV_PIX_FMT_YUV420P10,

  1002.     AV_PIX_FMT_YUV422P10,

  1003.     AV_PIX_FMT_YUV444P10,

  1004.     AV_PIX_FMT_NV20,

  1005. #ifdef X264_CSP_I400

  1006.     AV_PIX_FMT_GRAY8,

  1007.     AV_PIX_FMT_GRAY10,

  1008. #endif

  1009.     AV_PIX_FMT_NONE

  1010. };

  1011. #if CONFIG_LIBX264RGB_ENCODER

  1012. static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {

  1013.     AV_PIX_FMT_BGR0,

  1014.     AV_PIX_FMT_BGR24,

  1015.     AV_PIX_FMT_RGB24,

  1016.     AV_PIX_FMT_NONE

  1017. };

  1018. #endif

  1019. 

  1020. static av_cold void X264_init_static(AVCodec *codec)

  1021. {

  1022. #if X264_BUILD < 153

  1023.     if (x264_bit_depth == 8)

  1024.         codec->pix_fmts = pix_fmts_8bit;

  1025.     else if (x264_bit_depth == 9)

  1026.         codec->pix_fmts = pix_fmts_9bit;

  1027.     else if (x264_bit_depth == 10)

  1028.         codec->pix_fmts = pix_fmts_10bit;

  1029. #else

  1030.     codec->pix_fmts = pix_fmts_all;

  1031. #endif

  1032. }

  1033. 

  1034. #define OFFSET(x) offsetof(X264Context, x)

  1035. #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

  1036. static const AVOption options[] = {

  1037.     { "preset",        "Set the encoding preset (cf. x264 --fullhelp)",   OFFSET(preset),        AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},

  1038.     { "tune",          "Tune the encoding params (cf. x264 --fullhelp)",  OFFSET(tune),          AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

  1039.     { "profile",       "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile),       AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

  1040.     { "fastfirstpass", "Use fast settings when encoding first pass",      OFFSET(fastfirstpass), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE},

  1041.     {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1042.     {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1043.     {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1044.     {"a53cc",          "Use A53 Closed Captions (if available)",          OFFSET(a53_cc),        AV_OPT_TYPE_BOOL,   {.i64 = 1}, 0, 1, VE},

  1045.     {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

  1046.     { "crf",           "Select the quality for constant quality mode",    OFFSET(crf),           AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE },

  1047.     { "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 },

  1048.     { "qp",            "Constant quantization parameter rate control method",OFFSET(cqp),        AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE },

  1049.     { "aq-mode",       "AQ method",                                       OFFSET(aq_mode),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},

  1050.     { "none",          NULL,                              0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE},         INT_MIN, INT_MAX, VE, "aq_mode" },

  1051.     { "variance",      "Variance AQ (complexity mask)",   0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE},     INT_MIN, INT_MAX, VE, "aq_mode" },

  1052.     { "autovariance",  "Auto-variance AQ",                0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },

  1053. #if X264_BUILD >= 144

  1054.     { "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" },

  1055. #endif

  1056.     { "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},

  1057.     { "psy",           "Use psychovisual optimizations.",                 OFFSET(psy),           AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1058.     { "psy-rd",        "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING,  {0 }, 0, 0, VE},

  1059.     { "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 },

  1060.     { "weightb",       "Weighted prediction for B-frames.",               OFFSET(weightb),       AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1061.     { "weightp",       "Weighted prediction analysis method.",            OFFSET(weightp),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },

  1062.     { "none",          NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE},   INT_MIN, INT_MAX, VE, "weightp" },

  1063.     { "simple",        NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },

  1064.     { "smart",         NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART},  INT_MIN, INT_MAX, VE, "weightp" },

  1065.     { "ssim",          "Calculate and print SSIM stats.",                 OFFSET(ssim),          AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1066.     { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1067.     { "bluray-compat", "Bluray compatibility workarounds.",               OFFSET(bluray_compat) ,AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE },

  1068.     { "b-bias",        "Influences how often B-frames are used",          OFFSET(b_bias),        AV_OPT_TYPE_INT,    { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },

  1069.     { "b-pyramid",     "Keep some B-frames as references.",               OFFSET(b_pyramid),     AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },

  1070.     { "none",          NULL,                                  0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE},   INT_MIN, INT_MAX, VE, "b_pyramid" },

  1071.     { "strict",        "Strictly hierarchical pyramid",       0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },

  1072.     { "normal",        "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },

  1073.     { "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 },

  1074.     { "8x8dct",        "High profile 8x8 transform.",                     OFFSET(dct8x8),        AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1075.     { "fast-pskip",    NULL,                                              OFFSET(fast_pskip),    AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1076.     { "aud",           "Use access unit delimiters.",                     OFFSET(aud),           AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1077.     { "mbtree",        "Use macroblock tree ratecontrol.",                OFFSET(mbtree),        AV_OPT_TYPE_BOOL,   { .i64 = -1 }, -1, 1, VE},

  1078.     { "deblock",       "Loop filter parameters, in <alpha:beta> form.",   OFFSET(deblock),       AV_OPT_TYPE_STRING, { 0 },  0, 0, VE},

  1079.     { "cplxblur",      "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE},

  1080.     { "partitions",    "A comma-separated list of partitions to consider. "

  1081.                        "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

  1082.     { "direct-pred",   "Direct MV prediction mode",                       OFFSET(direct_pred),   AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },

  1083.     { "none",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE },     0, 0, VE, "direct-pred" },

  1084.     { "spatial",       NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL },  0, 0, VE, "direct-pred" },

  1085.     { "temporal",      NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },

  1086.     { "auto",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO },     0, 0, VE, "direct-pred" },

  1087.     { "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 },

  1088.     { "stats",         "Filename for 2 pass stats",                       OFFSET(stats),         AV_OPT_TYPE_STRING, { 0 },  0,       0, VE },

  1089.     { "nal-hrd",       "Signal HRD information (requires vbv-bufsize; "

  1090.                        "cbr not allowed in .mp4)",                        OFFSET(nal_hrd),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },

  1091.     { "none",          NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },

  1092.     { "vbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },

  1093.     { "cbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },

  1094.     { "avcintra-class","AVC-Intra class 50/100/200",                      OFFSET(avcintra_class),AV_OPT_TYPE_INT,     { .i64 = -1 }, -1, 200   , VE},

  1095.     { "me_method",    "Set motion estimation method",                     OFFSET(motion_est),    AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},

  1096.     { "motion-est",   "Set motion estimation method",                     OFFSET(motion_est),    AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},

  1097.     { "dia",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_DIA },  INT_MIN, INT_MAX, VE, "motion-est" },

  1098.     { "hex",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_HEX },  INT_MIN, INT_MAX, VE, "motion-est" },

  1099.     { "umh",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_UMH },  INT_MIN, INT_MAX, VE, "motion-est" },

  1100.     { "esa",           NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_ESA },  INT_MIN, INT_MAX, VE, "motion-est" },

  1101.     { "tesa",          NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },

  1102.     { "forced-idr",   "If forcing keyframes, force them as IDR frames.",                                  OFFSET(forced_idr),  AV_OPT_TYPE_BOOL,   { .i64 = 0 }, -1, 1, VE },

  1103.     { "coder",    "Coder type",                                           OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE, "coder" },

  1104.     { "default",          NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, INT_MIN, INT_MAX, VE, "coder" },

  1105.     { "cavlc",            NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 },  INT_MIN, INT_MAX, VE, "coder" },

  1106.     { "cabac",            NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 },  INT_MIN, INT_MAX, VE, "coder" },

  1107.     { "vlc",              NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 },  INT_MIN, INT_MAX, VE, "coder" },

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

  1109.     { "b_strategy",   "Strategy to choose between I/P/B-frames",          OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, VE },

  1110.     { "chromaoffset", "QP difference between chroma and luma",            OFFSET(chroma_offset), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },

  1111.     { "sc_threshold", "Scene change threshold",                           OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },

  1112.     { "noise_reduction", "Noise reduction",                               OFFSET(noise_reduction), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },

  1113. 

  1114.     { "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 },

  1115.     { NULL },

  1116. };

  1117. 

  1118. static const AVCodecDefault x264_defaults[] = {

  1119.     { "b",                "0" },

  1120.     { "bf",               "-1" },

  1121.     { "flags2",           "0" },

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

  1123.     { "i_qfactor",        "-1" },

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

  1125.     { "qmin",             "-1" },

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

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

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

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

  1130. //     { "rc_lookahead",     "-1" },

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

  1132. #if FF_API_PRIVATE_OPT

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

  1134. #endif

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

  1136. #if FF_API_PRIVATE_OPT

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

  1138. #endif

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

  1140.     { "subq",             "-1" },

  1141. #if FF_API_PRIVATE_OPT

  1142.     { "b_strategy",       "-1" },

  1143. #endif

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

  1145. #if FF_API_CODER_TYPE

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

  1147. #endif

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

  1149.     { "threads",          AV_STRINGIFY(X264_THREADS_AUTO) },

  1150.     { "thread_type",      "0" },

  1151.     { "flags",            "+cgop" },

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

  1153.     { NULL },

  1154. };

  1155. 

  1156. #if CONFIG_LIBX264_ENCODER

  1157. static const AVClass x264_class = {

  1158.     .class_name = "libx264",

  1159.     .item_name  = av_default_item_name,

  1160.     .option     = options,

  1161.     .version    = LIBAVUTIL_VERSION_INT,

  1162. };

  1163. 

  1164. AVCodec ff_libx264_encoder = {

  1165.     .name             = "libx264",

  1166.     .long_name        = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),

  1167.     .type             = AVMEDIA_TYPE_VIDEO,

  1168.     .id               = AV_CODEC_ID_H264,

  1169.     .priv_data_size   = sizeof(X264Context),

  1170.     .init             = X264_init,

  1171.     .encode2          = X264_frame,

  1172.     .close            = X264_close,

  1173.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |

  1174.                         AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,

  1175.     .priv_class       = &x264_class,

  1176.     .defaults         = x264_defaults,

  1177.     .init_static_data = X264_init_static,

  1178. #if X264_BUILD >= 158

  1179.     .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_INIT_THREADSAFE,

  1180. #else

  1181.     .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP,

  1182. #endif

  1183.     .wrapper_name     = "libx264",

  1184. };

  1185. #endif

  1186. 

  1187. #if CONFIG_LIBX264RGB_ENCODER

  1188. static const AVClass rgbclass = {

  1189.     .class_name = "libx264rgb",

  1190.     .item_name  = av_default_item_name,

  1191.     .option     = options,

  1192.     .version    = LIBAVUTIL_VERSION_INT,

  1193. };

  1194. 

  1195. AVCodec ff_libx264rgb_encoder = {

  1196.     .name           = "libx264rgb",

  1197.     .long_name      = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),

  1198.     .type           = AVMEDIA_TYPE_VIDEO,

  1199.     .id             = AV_CODEC_ID_H264,

  1200.     .priv_data_size = sizeof(X264Context),

  1201.     .init           = X264_init,

  1202.     .encode2        = X264_frame,

  1203.     .close          = X264_close,

  1204.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |

  1205.                       AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,

  1206.     .priv_class     = &rgbclass,

  1207.     .defaults       = x264_defaults,

  1208.     .pix_fmts       = pix_fmts_8bit_rgb,

  1209. #if X264_BUILD >= 158

  1210.     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_INIT_THREADSAFE,

  1211. #else

  1212.     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,

  1213. #endif

  1214.     .wrapper_name   = "libx264",

  1215. };

  1216. #endif

  1217. 

  1218. #if CONFIG_LIBX262_ENCODER

  1219. static const AVClass X262_class = {

  1220.     .class_name = "libx262",

  1221.     .item_name  = av_default_item_name,

  1222.     .option     = options,

  1223.     .version    = LIBAVUTIL_VERSION_INT,

  1224. };

  1225. 

  1226. AVCodec ff_libx262_encoder = {

  1227.     .name             = "libx262",

  1228.     .long_name        = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),

  1229.     .type             = AVMEDIA_TYPE_VIDEO,

  1230.     .id               = AV_CODEC_ID_MPEG2VIDEO,

  1231.     .priv_data_size   = sizeof(X264Context),

  1232.     .init             = X264_init,

  1233.     .encode2          = X264_frame,

  1234.     .close            = X264_close,

  1235.     .capabilities     = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |

  1236.                         AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,

  1237.     .priv_class       = &X262_class,

  1238.     .defaults         = x264_defaults,

  1239.     .pix_fmts         = pix_fmts_8bit,

  1240.     .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP,

  1241.     .wrapper_name     = "libx264",

  1242. };

  1243. #endif