FFmpeg: libavcodec/libx264.c Source File

00001 /*
00002  * H.264 encoding using the x264 library
00003  * Copyright (C) 2005  Mans Rullgard <mans@mansr.com>
00004  *
00005  * This file is part of FFmpeg.
00006  *
00007  * FFmpeg is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * FFmpeg is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with FFmpeg; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00020  */
00021 
00022 #include "libavutil/internal.h"
00023 #include "libavutil/opt.h"
00024 #include "libavutil/mem.h"
00025 #include "libavutil/pixdesc.h"
00026 #include "avcodec.h"
00027 #include "internal.h"
00028 #include <x264.h>
00029 #include <float.h>
00030 #include <math.h>
00031 #include <stdio.h>
00032 #include <stdlib.h>
00033 #include <string.h>
00034 
00035 typedef struct X264Context {
00036     AVClass        *class;
00037     x264_param_t    params;
00038     x264_t         *enc;
00039     x264_picture_t  pic;
00040     uint8_t        *sei;
00041     int             sei_size;
00042     AVFrame         out_pic;
00043     char *preset;
00044     char *tune;
00045     char *profile;
00046     char *level;
00047     int fastfirstpass;
00048     char *wpredp;
00049     char *x264opts;
00050     float crf;
00051     float crf_max;
00052     int cqp;
00053     int aq_mode;
00054     float aq_strength;
00055     char *psy_rd;
00056     int psy;
00057     int rc_lookahead;
00058     int weightp;
00059     int weightb;
00060     int ssim;
00061     int intra_refresh;
00062     int b_bias;
00063     int b_pyramid;
00064     int mixed_refs;
00065     int dct8x8;
00066     int fast_pskip;
00067     int aud;
00068     int mbtree;
00069     char *deblock;
00070     float cplxblur;
00071     char *partitions;
00072     int direct_pred;
00073     int slice_max_size;
00074     char *stats;
00075     int nal_hrd;
00076 } X264Context;
00077 
00078 static void X264_log(void *p, int level, const char *fmt, va_list args)
00079 {
00080     static const int level_map[] = {
00081         [X264_LOG_ERROR]   = AV_LOG_ERROR,
00082         [X264_LOG_WARNING] = AV_LOG_WARNING,
00083         [X264_LOG_INFO]    = AV_LOG_INFO,
00084         [X264_LOG_DEBUG]   = AV_LOG_DEBUG
00085     };
00086 
00087     if (level < 0 || level > X264_LOG_DEBUG)
00088         return;
00089 
00090     av_vlog(p, level_map[level], fmt, args);
00091 }
00092 
00093 
00094 static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,
00095                        x264_nal_t *nals, int nnal)
00096 {
00097     X264Context *x4 = ctx->priv_data;
00098     uint8_t *p;
00099     int i, size = x4->sei_size, ret;
00100 
00101     if (!nnal)
00102         return 0;
00103 
00104     for (i = 0; i < nnal; i++)
00105         size += nals[i].i_payload;
00106 
00107     if ((ret = ff_alloc_packet2(ctx, pkt, size)) < 0)
00108         return ret;
00109 
00110     p = pkt->data;
00111 
00112     /* Write the SEI as part of the first frame. */
00113     if (x4->sei_size > 0 && nnal > 0) {
00114         if (x4->sei_size > size) {
00115             av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");
00116             return -1;
00117         }
00118         memcpy(p, x4->sei, x4->sei_size);
00119         p += x4->sei_size;
00120         x4->sei_size = 0;
00121         av_freep(&x4->sei);
00122     }
00123 
00124     for (i = 0; i < nnal; i++){
00125         memcpy(p, nals[i].p_payload, nals[i].i_payload);
00126         p += nals[i].i_payload;
00127     }
00128 
00129     return 1;
00130 }
00131 
00132 static int avfmt2_num_planes(int avfmt)
00133 {
00134     switch (avfmt) {
00135     case PIX_FMT_YUV420P:
00136     case PIX_FMT_YUVJ420P:
00137     case PIX_FMT_YUV420P9:
00138     case PIX_FMT_YUV420P10:
00139     case PIX_FMT_YUV444P:
00140         return 3;
00141 
00142     case PIX_FMT_BGR24:
00143     case PIX_FMT_RGB24:
00144         return 1;
00145 
00146     default:
00147         return 3;
00148     }
00149 }
00150 
00151 static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
00152                       int *got_packet)
00153 {
00154     X264Context *x4 = ctx->priv_data;
00155     x264_nal_t *nal;
00156     int nnal, i, ret;
00157     x264_picture_t pic_out;
00158 
00159     x264_picture_init( &x4->pic );
00160     x4->pic.img.i_csp   = x4->params.i_csp;
00161     if (x264_bit_depth > 8)
00162         x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;
00163     x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);
00164 
00165     if (frame) {
00166         for (i = 0; i < x4->pic.img.i_plane; i++) {
00167             x4->pic.img.plane[i]    = frame->data[i];
00168             x4->pic.img.i_stride[i] = frame->linesize[i];
00169         }
00170 
00171         x4->pic.i_pts  = frame->pts;
00172         x4->pic.i_type =
00173             frame->pict_type == AV_PICTURE_TYPE_I ? X264_TYPE_KEYFRAME :
00174             frame->pict_type == AV_PICTURE_TYPE_P ? X264_TYPE_P :
00175             frame->pict_type == AV_PICTURE_TYPE_B ? X264_TYPE_B :
00176                                             X264_TYPE_AUTO;
00177         if (x4->params.b_tff != frame->top_field_first) {
00178             x4->params.b_tff = frame->top_field_first;
00179             x264_encoder_reconfig(x4->enc, &x4->params);
00180         }
00181         if (x4->params.vui.i_sar_height != ctx->sample_aspect_ratio.den ||
00182             x4->params.vui.i_sar_width  != ctx->sample_aspect_ratio.num) {
00183             x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
00184             x4->params.vui.i_sar_width  = ctx->sample_aspect_ratio.num;
00185             x264_encoder_reconfig(x4->enc, &x4->params);
00186         }
00187     }
00188 
00189     do {
00190         if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
00191             return -1;
00192 
00193         ret = encode_nals(ctx, pkt, nal, nnal);
00194         if (ret < 0)
00195             return -1;
00196     } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));
00197 
00198     pkt->pts = pic_out.i_pts;
00199     pkt->dts = pic_out.i_dts;
00200 
00201     switch (pic_out.i_type) {
00202     case X264_TYPE_IDR:
00203     case X264_TYPE_I:
00204         x4->out_pic.pict_type = AV_PICTURE_TYPE_I;
00205         break;
00206     case X264_TYPE_P:
00207         x4->out_pic.pict_type = AV_PICTURE_TYPE_P;
00208         break;
00209     case X264_TYPE_B:
00210     case X264_TYPE_BREF:
00211         x4->out_pic.pict_type = AV_PICTURE_TYPE_B;
00212         break;
00213     }
00214 
00215     pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;
00216     if (ret)
00217         x4->out_pic.quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
00218 
00219     *got_packet = ret;
00220     return 0;
00221 }
00222 
00223 static av_cold int X264_close(AVCodecContext *avctx)
00224 {
00225     X264Context *x4 = avctx->priv_data;
00226 
00227     av_freep(&avctx->extradata);
00228     av_free(x4->sei);
00229 
00230     if (x4->enc)
00231         x264_encoder_close(x4->enc);
00232 
00233     return 0;
00234 }
00235 
00236 #define OPT_STR(opt, param)                                                   \
00237     do {                                                                      \
00238         int ret;                                                              \
00239         if (param && (ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
00240             if(ret == X264_PARAM_BAD_NAME)                                    \
00241                 av_log(avctx, AV_LOG_ERROR,                                   \
00242                         "bad option '%s': '%s'\n", opt, param);               \
00243             else                                                              \
00244                 av_log(avctx, AV_LOG_ERROR,                                   \
00245                         "bad value for '%s': '%s'\n", opt, param);            \
00246             return -1;                                                        \
00247         }                                                                     \
00248     } while (0)
00249 
00250 static int convert_pix_fmt(enum PixelFormat pix_fmt)
00251 {
00252     switch (pix_fmt) {
00253     case PIX_FMT_YUV420P:
00254     case PIX_FMT_YUVJ420P:
00255     case PIX_FMT_YUV420P9:
00256     case PIX_FMT_YUV420P10: return X264_CSP_I420;
00257     case PIX_FMT_YUV422P:
00258     case PIX_FMT_YUV422P10: return X264_CSP_I422;
00259     case PIX_FMT_YUV444P:
00260     case PIX_FMT_YUV444P9:
00261     case PIX_FMT_YUV444P10: return X264_CSP_I444;
00262 #ifdef X264_CSP_BGR
00263     case PIX_FMT_BGR24:
00264         return X264_CSP_BGR;
00265 
00266     case PIX_FMT_RGB24:
00267         return X264_CSP_RGB;
00268 #endif
00269     };
00270     return 0;
00271 }
00272 
00273 #define PARSE_X264_OPT(name, var)\
00274     if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
00275         av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
00276         return AVERROR(EINVAL);\
00277     }
00278 
00279 static av_cold int X264_init(AVCodecContext *avctx)
00280 {
00281     X264Context *x4 = avctx->priv_data;
00282     int sw,sh;
00283 
00284     x264_param_default(&x4->params);
00285 
00286     x4->params.b_deblocking_filter         = avctx->flags & CODEC_FLAG_LOOP_FILTER;
00287 
00288     x4->params.rc.f_ip_factor             = 1 / fabs(avctx->i_quant_factor);
00289     x4->params.rc.f_pb_factor             = avctx->b_quant_factor;
00290     x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
00291     if (x4->preset || x4->tune)
00292         if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
00293             int i;
00294             av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
00295             av_log(avctx, AV_LOG_INFO, "Possible presets:");
00296             for (i = 0; x264_preset_names[i]; i++)
00297                 av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);
00298             av_log(avctx, AV_LOG_INFO, "\n");
00299             av_log(avctx, AV_LOG_INFO, "Possible tunes:");
00300             for (i = 0; x264_tune_names[i]; i++)
00301                 av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);
00302             av_log(avctx, AV_LOG_INFO, "\n");
00303             return AVERROR(EINVAL);
00304         }
00305 
00306     if (avctx->level > 0)
00307         x4->params.i_level_idc = avctx->level;
00308 
00309     x4->params.pf_log               = X264_log;
00310     x4->params.p_log_private        = avctx;
00311     x4->params.i_log_level          = X264_LOG_DEBUG;
00312     x4->params.i_csp                = convert_pix_fmt(avctx->pix_fmt);
00313 
00314     OPT_STR("weightp", x4->wpredp);
00315 
00316     if (avctx->bit_rate) {
00317         x4->params.rc.i_bitrate   = avctx->bit_rate / 1000;
00318         x4->params.rc.i_rc_method = X264_RC_ABR;
00319     }
00320     x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
00321     x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate    / 1000;
00322     x4->params.rc.b_stat_write      = avctx->flags & CODEC_FLAG_PASS1;
00323     if (avctx->flags & CODEC_FLAG_PASS2) {
00324         x4->params.rc.b_stat_read = 1;
00325     } else {
00326         if (x4->crf >= 0) {
00327             x4->params.rc.i_rc_method   = X264_RC_CRF;
00328             x4->params.rc.f_rf_constant = x4->crf;
00329         } else if (x4->cqp >= 0) {
00330             x4->params.rc.i_rc_method   = X264_RC_CQP;
00331             x4->params.rc.i_qp_constant = x4->cqp;
00332         }
00333 
00334         if (x4->crf_max >= 0)
00335             x4->params.rc.f_rf_constant_max = x4->crf_max;
00336     }
00337 
00338     if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy &&
00339         (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
00340         x4->params.rc.f_vbv_buffer_init =
00341             (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
00342     }
00343 
00344     OPT_STR("level", x4->level);
00345 
00346     if(x4->x264opts){
00347         const char *p= x4->x264opts;
00348         while(p){
00349             char param[256]={0}, val[256]={0};
00350             if(sscanf(p, "%255[^:=]=%255[^:]", param, val) == 1){
00351                 OPT_STR(param, "1");
00352             }else
00353                 OPT_STR(param, val);
00354             p= strchr(p, ':');
00355             p+=!!p;
00356         }
00357     }
00358 
00359     if (avctx->me_method == ME_EPZS)
00360         x4->params.analyse.i_me_method = X264_ME_DIA;
00361     else if (avctx->me_method == ME_HEX)
00362         x4->params.analyse.i_me_method = X264_ME_HEX;
00363     else if (avctx->me_method == ME_UMH)
00364         x4->params.analyse.i_me_method = X264_ME_UMH;
00365     else if (avctx->me_method == ME_FULL)
00366         x4->params.analyse.i_me_method = X264_ME_ESA;
00367     else if (avctx->me_method == ME_TESA)
00368         x4->params.analyse.i_me_method = X264_ME_TESA;
00369 
00370     if (avctx->gop_size >= 0)
00371         x4->params.i_keyint_max         = avctx->gop_size;
00372     if (avctx->max_b_frames >= 0)
00373         x4->params.i_bframe             = avctx->max_b_frames;
00374     if (avctx->scenechange_threshold >= 0)
00375         x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
00376     if (avctx->qmin >= 0)
00377         x4->params.rc.i_qp_min          = avctx->qmin;
00378     if (avctx->qmax >= 0)
00379         x4->params.rc.i_qp_max          = avctx->qmax;
00380     if (avctx->max_qdiff >= 0)
00381         x4->params.rc.i_qp_step         = avctx->max_qdiff;
00382     if (avctx->qblur >= 0)
00383         x4->params.rc.f_qblur           = avctx->qblur;     /* temporally blur quants */
00384     if (avctx->qcompress >= 0)
00385         x4->params.rc.f_qcompress       = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
00386     if (avctx->refs >= 0)
00387         x4->params.i_frame_reference    = avctx->refs;
00388     if (avctx->trellis >= 0)
00389         x4->params.analyse.i_trellis    = avctx->trellis;
00390     if (avctx->me_range >= 0)
00391         x4->params.analyse.i_me_range   = avctx->me_range;
00392     if (avctx->noise_reduction >= 0)
00393         x4->params.analyse.i_noise_reduction = avctx->noise_reduction;
00394     if (avctx->me_subpel_quality >= 0)
00395         x4->params.analyse.i_subpel_refine   = avctx->me_subpel_quality;
00396     if (avctx->b_frame_strategy >= 0)
00397         x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
00398     if (avctx->keyint_min >= 0)
00399         x4->params.i_keyint_min = avctx->keyint_min;
00400     if (avctx->coder_type >= 0)
00401         x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
00402     if (avctx->me_cmp >= 0)
00403         x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
00404 
00405     if (x4->aq_mode >= 0)
00406         x4->params.rc.i_aq_mode = x4->aq_mode;
00407     if (x4->aq_strength >= 0)
00408         x4->params.rc.f_aq_strength = x4->aq_strength;
00409     PARSE_X264_OPT("psy-rd", psy_rd);
00410     PARSE_X264_OPT("deblock", deblock);
00411     PARSE_X264_OPT("partitions", partitions);
00412     PARSE_X264_OPT("stats", stats);
00413     if (x4->psy >= 0)
00414         x4->params.analyse.b_psy  = x4->psy;
00415     if (x4->rc_lookahead >= 0)
00416         x4->params.rc.i_lookahead = x4->rc_lookahead;
00417     if (x4->weightp >= 0)
00418         x4->params.analyse.i_weighted_pred = x4->weightp;
00419     if (x4->weightb >= 0)
00420         x4->params.analyse.b_weighted_bipred = x4->weightb;
00421     if (x4->cplxblur >= 0)
00422         x4->params.rc.f_complexity_blur = x4->cplxblur;
00423 
00424     if (x4->ssim >= 0)
00425         x4->params.analyse.b_ssim = x4->ssim;
00426     if (x4->intra_refresh >= 0)
00427         x4->params.b_intra_refresh = x4->intra_refresh;
00428     if (x4->b_bias != INT_MIN)
00429         x4->params.i_bframe_bias              = x4->b_bias;
00430     if (x4->b_pyramid >= 0)
00431         x4->params.i_bframe_pyramid = x4->b_pyramid;
00432     if (x4->mixed_refs >= 0)
00433         x4->params.analyse.b_mixed_references = x4->mixed_refs;
00434     if (x4->dct8x8 >= 0)
00435         x4->params.analyse.b_transform_8x8    = x4->dct8x8;
00436     if (x4->fast_pskip >= 0)
00437         x4->params.analyse.b_fast_pskip       = x4->fast_pskip;
00438     if (x4->aud >= 0)
00439         x4->params.b_aud                      = x4->aud;
00440     if (x4->mbtree >= 0)
00441         x4->params.rc.b_mb_tree               = x4->mbtree;
00442     if (x4->direct_pred >= 0)
00443         x4->params.analyse.i_direct_mv_pred   = x4->direct_pred;
00444 
00445     if (x4->slice_max_size >= 0)
00446         x4->params.i_slice_max_size =  x4->slice_max_size;
00447     else {
00448         /*
00449          * Allow x264 to be instructed through AVCodecContext about the maximum
00450          * size of the RTP payload. For example, this enables the production of
00451          * payload suitable for the H.264 RTP packetization-mode 0 i.e. single
00452          * NAL unit per RTP packet.
00453          */
00454         if (avctx->rtp_payload_size)
00455             x4->params.i_slice_max_size = avctx->rtp_payload_size;
00456     }
00457 
00458     if (x4->fastfirstpass)
00459         x264_param_apply_fastfirstpass(&x4->params);
00460 
00461     /* Allow specifying the x264 profile through AVCodecContext. */
00462     if (!x4->profile)
00463         switch (avctx->profile) {
00464         case FF_PROFILE_H264_BASELINE:
00465             x4->profile = av_strdup("baseline");
00466             break;
00467         case FF_PROFILE_H264_HIGH:
00468             x4->profile = av_strdup("high");
00469             break;
00470         case FF_PROFILE_H264_HIGH_10:
00471             x4->profile = av_strdup("high10");
00472             break;
00473         case FF_PROFILE_H264_HIGH_422:
00474             x4->profile = av_strdup("high422");
00475             break;
00476         case FF_PROFILE_H264_HIGH_444:
00477             x4->profile = av_strdup("high444");
00478             break;
00479         case FF_PROFILE_H264_MAIN:
00480             x4->profile = av_strdup("main");
00481             break;
00482         default:
00483             break;
00484         }
00485 
00486     if (x4->nal_hrd >= 0)
00487         x4->params.i_nal_hrd = x4->nal_hrd;
00488 
00489     if (x4->profile)
00490         if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {
00491             int i;
00492             av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);
00493             av_log(avctx, AV_LOG_INFO, "Possible profiles:");
00494             for (i = 0; x264_profile_names[i]; i++)
00495                 av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);
00496             av_log(avctx, AV_LOG_INFO, "\n");
00497             return AVERROR(EINVAL);
00498         }
00499 
00500     x4->params.i_width          = avctx->width;
00501     x4->params.i_height         = avctx->height;
00502     av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);
00503     x4->params.vui.i_sar_width  = sw;
00504     x4->params.vui.i_sar_height = sh;
00505     x4->params.i_fps_num = x4->params.i_timebase_den = avctx->time_base.den;
00506     x4->params.i_fps_den = x4->params.i_timebase_num = avctx->time_base.num;
00507 
00508     x4->params.analyse.b_psnr = avctx->flags & CODEC_FLAG_PSNR;
00509 
00510     x4->params.i_threads      = avctx->thread_count;
00511     if (avctx->thread_type)
00512         x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;
00513 
00514     x4->params.b_interlaced   = avctx->flags & CODEC_FLAG_INTERLACED_DCT;
00515 
00516     x4->params.b_open_gop     = !(avctx->flags & CODEC_FLAG_CLOSED_GOP);
00517 
00518     x4->params.i_slice_count  = avctx->slices;
00519 
00520     x4->params.vui.b_fullrange = avctx->pix_fmt == PIX_FMT_YUVJ420P;
00521 
00522     if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER)
00523         x4->params.b_repeat_headers = 0;
00524 
00525     // update AVCodecContext with x264 parameters
00526     avctx->has_b_frames = x4->params.i_bframe ?
00527         x4->params.i_bframe_pyramid ? 2 : 1 : 0;
00528     if (avctx->max_b_frames < 0)
00529         avctx->max_b_frames = 0;
00530 
00531     avctx->bit_rate = x4->params.rc.i_bitrate*1000;
00532 
00533     x4->enc = x264_encoder_open(&x4->params);
00534     if (!x4->enc)
00535         return -1;
00536 
00537     avctx->coded_frame = &x4->out_pic;
00538 
00539     if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
00540         x264_nal_t *nal;
00541         uint8_t *p;
00542         int nnal, s, i;
00543 
00544         s = x264_encoder_headers(x4->enc, &nal, &nnal);
00545         avctx->extradata = p = av_malloc(s);
00546 
00547         for (i = 0; i < nnal; i++) {
00548             /* Don't put the SEI in extradata. */
00549             if (nal[i].i_type == NAL_SEI) {
00550                 av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);
00551                 x4->sei_size = nal[i].i_payload;
00552                 x4->sei      = av_malloc(x4->sei_size);
00553                 memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);
00554                 continue;
00555             }
00556             memcpy(p, nal[i].p_payload, nal[i].i_payload);
00557             p += nal[i].i_payload;
00558         }
00559         avctx->extradata_size = p - avctx->extradata;
00560     }
00561 
00562     return 0;
00563 }
00564 
00565 static const enum PixelFormat pix_fmts_8bit[] = {
00566     PIX_FMT_YUV420P,
00567     PIX_FMT_YUVJ420P,
00568     PIX_FMT_YUV422P,
00569     PIX_FMT_YUV444P,
00570     PIX_FMT_NONE
00571 };
00572 static const enum PixelFormat pix_fmts_9bit[] = {
00573     PIX_FMT_YUV420P9,
00574     PIX_FMT_YUV444P9,
00575     PIX_FMT_NONE
00576 };
00577 static const enum PixelFormat pix_fmts_10bit[] = {
00578     PIX_FMT_YUV420P10,
00579     PIX_FMT_YUV422P10,
00580     PIX_FMT_YUV444P10,
00581     PIX_FMT_NONE
00582 };
00583 static const enum PixelFormat pix_fmts_8bit_rgb[] = {
00584 #ifdef X264_CSP_BGR
00585     PIX_FMT_BGR24,
00586     PIX_FMT_RGB24,
00587 #endif
00588     PIX_FMT_NONE
00589 };
00590 
00591 static av_cold void X264_init_static(AVCodec *codec)
00592 {
00593     if (x264_bit_depth == 8)
00594         codec->pix_fmts = pix_fmts_8bit;
00595     else if (x264_bit_depth == 9)
00596         codec->pix_fmts = pix_fmts_9bit;
00597     else if (x264_bit_depth == 10)
00598         codec->pix_fmts = pix_fmts_10bit;
00599 }
00600 
00601 #define OFFSET(x) offsetof(X264Context, x)
00602 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
00603 static const AVOption options[] = {
00604     { "preset",        "Set the encoding preset (cf. x264 --fullhelp)",   OFFSET(preset),        AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},
00605     { "tune",          "Tune the encoding params (cf. x264 --fullhelp)",  OFFSET(tune),          AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
00606     { "profile",       "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile),       AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
00607     { "fastfirstpass", "Use fast settings when encoding first pass",      OFFSET(fastfirstpass), AV_OPT_TYPE_INT,    { .i64 = 1 }, 0, 1, VE},
00608     {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
00609     {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
00610     {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
00611     {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
00612     { "crf",           "Select the quality for constant quality mode",    OFFSET(crf),           AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE },
00613     { "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 },
00614     { "qp",            "Constant quantization parameter rate control method",OFFSET(cqp),        AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE },
00615     { "aq-mode",       "AQ method",                                       OFFSET(aq_mode),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},
00616     { "none",          NULL,                              0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE},         INT_MIN, INT_MAX, VE, "aq_mode" },
00617     { "variance",      "Variance AQ (complexity mask)",   0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE},     INT_MIN, INT_MAX, VE, "aq_mode" },
00618     { "autovariance",  "Auto-variance AQ (experimental)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
00619     { "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},
00620     { "psy",           "Use psychovisual optimizations.",                 OFFSET(psy),           AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE },
00621     { "psy-rd",        "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING,  {0 }, 0, 0, VE},
00622     { "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 },
00623     { "weightb",       "Weighted prediction for B-frames.",               OFFSET(weightb),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE },
00624     { "weightp",       "Weighted prediction analysis method.",            OFFSET(weightp),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },
00625     { "none",          NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE},   INT_MIN, INT_MAX, VE, "weightp" },
00626     { "simple",        NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
00627     { "smart",         NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART},  INT_MIN, INT_MAX, VE, "weightp" },
00628     { "ssim",          "Calculate and print SSIM stats.",                 OFFSET(ssim),          AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE },
00629     { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE },
00630     { "b-bias",        "Influences how often B-frames are used",          OFFSET(b_bias),        AV_OPT_TYPE_INT,    { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
00631     { "b-pyramid",     "Keep some B-frames as references.",               OFFSET(b_pyramid),     AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },
00632     { "none",          NULL,                                  0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE},   INT_MIN, INT_MAX, VE, "b_pyramid" },
00633     { "strict",        "Strictly hierarchical pyramid",       0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
00634     { "normal",        "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
00635     { "mixed-refs",    "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_INT, { .i64 = -1}, -1, 1, VE },
00636     { "8x8dct",        "High profile 8x8 transform.",                     OFFSET(dct8x8),        AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE},
00637     { "fast-pskip",    NULL,                                              OFFSET(fast_pskip),    AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE},
00638     { "aud",           "Use access unit delimiters.",                     OFFSET(aud),           AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE},
00639     { "mbtree",        "Use macroblock tree ratecontrol.",                OFFSET(mbtree),        AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, 1, VE},
00640     { "deblock",       "Loop filter parameters, in <alpha:beta> form.",   OFFSET(deblock),       AV_OPT_TYPE_STRING, { 0 },  0, 0, VE},
00641     { "cplxblur",      "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE},
00642     { "partitions",    "A comma-separated list of partitions to consider. "
00643                        "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
00644     { "direct-pred",   "Direct MV prediction mode",                       OFFSET(direct_pred),   AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
00645     { "none",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE },     0, 0, VE, "direct-pred" },
00646     { "spatial",       NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL },  0, 0, VE, "direct-pred" },
00647     { "temporal",      NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
00648     { "auto",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO },     0, 0, VE, "direct-pred" },
00649     { "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 },
00650     { "stats",         "Filename for 2 pass stats",                       OFFSET(stats),         AV_OPT_TYPE_STRING, { 0 },  0,       0, VE },
00651     { "nal-hrd",       "Signal HRD information (requires vbv-bufsize; "
00652                        "cbr not allowed in .mp4)",                        OFFSET(nal_hrd),       AV_OPT_TYPE_INT,    { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },
00653     { "none",          NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
00654     { "vbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },
00655     { "cbr",           NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR},  INT_MIN, INT_MAX, VE, "nal-hrd" },
00656     { NULL },
00657 };
00658 
00659 static const AVClass class = {
00660     .class_name = "libx264",
00661     .item_name  = av_default_item_name,
00662     .option     = options,
00663     .version    = LIBAVUTIL_VERSION_INT,
00664 };
00665 
00666 static const AVClass rgbclass = {
00667     .class_name = "libx264rgb",
00668     .item_name  = av_default_item_name,
00669     .option     = options,
00670     .version    = LIBAVUTIL_VERSION_INT,
00671 };
00672 
00673 static const AVCodecDefault x264_defaults[] = {
00674     { "b",                "0" },
00675     { "bf",               "-1" },
00676     { "flags2",           "0" },
00677     { "g",                "-1" },
00678     { "qmin",             "-1" },
00679     { "qmax",             "-1" },
00680     { "qdiff",            "-1" },
00681     { "qblur",            "-1" },
00682     { "qcomp",            "-1" },
00683 //     { "rc_lookahead",     "-1" },
00684     { "refs",             "-1" },
00685     { "sc_threshold",     "-1" },
00686     { "trellis",          "-1" },
00687     { "nr",               "-1" },
00688     { "me_range",         "-1" },
00689     { "me_method",        "-1" },
00690     { "subq",             "-1" },
00691     { "b_strategy",       "-1" },
00692     { "keyint_min",       "-1" },
00693     { "coder",            "-1" },
00694     { "cmp",              "-1" },
00695     { "threads",          AV_STRINGIFY(X264_THREADS_AUTO) },
00696     { "thread_type",      "0" },
00697     { "flags",            "+cgop" },
00698     { NULL },
00699 };
00700 
00701 AVCodec ff_libx264_encoder = {
00702     .name             = "libx264",
00703     .type             = AVMEDIA_TYPE_VIDEO,
00704     .id               = AV_CODEC_ID_H264,
00705     .priv_data_size   = sizeof(X264Context),
00706     .init             = X264_init,
00707     .encode2          = X264_frame,
00708     .close            = X264_close,
00709     .capabilities     = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
00710     .long_name        = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
00711     .priv_class       = &class,
00712     .defaults         = x264_defaults,
00713     .init_static_data = X264_init_static,
00714 };
00715 
00716 AVCodec ff_libx264rgb_encoder = {
00717     .name           = "libx264rgb",
00718     .type           = AVMEDIA_TYPE_VIDEO,
00719     .id             = AV_CODEC_ID_H264,
00720     .priv_data_size = sizeof(X264Context),
00721     .init           = X264_init,
00722     .encode2        = X264_frame,
00723     .close          = X264_close,
00724     .capabilities   = CODEC_CAP_DELAY,
00725     .long_name      = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),
00726     .priv_class     = &rgbclass,
00727     .defaults       = x264_defaults,
00728     .pix_fmts       = pix_fmts_8bit_rgb,
00729 };