git.sesse.net Git - x264/blob - x264.c

   1 /*****************************************************************************
   2  * x264: h264 encoder testing program.
   3  *****************************************************************************
   4  * Copyright (C) 2003-2008 x264 project
   5  *
   6  * Authors: Loren Merritt <lorenm@u.washington.edu>
   7  *          Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Steven Walters <kemuri9@gmail.com>
   9  *          Kieran Kunhya <kieran@kunhya.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
  24  *****************************************************************************/
  25
  26 #include <stdlib.h>
  27 #include <math.h>
  28
  29 #include <signal.h>
  30 #define _GNU_SOURCE
  31 #include <getopt.h>
  32
  33 #include "common/common.h"
  34 #include "common/cpu.h"
  35 #include "x264.h"
  36 #include "muxers.h"
  37
  38 #ifdef _WIN32
  39 #include <windows.h>
  40 #else
  41 #define SetConsoleTitle(t)
  42 #endif
  43
  44 /* Ctrl-C handler */
  45 static int     b_ctrl_c = 0;
  46 static int     b_exit_on_ctrl_c = 0;
  47 static void    SigIntHandler( int a )
  48 {
  49     if( b_exit_on_ctrl_c )
  50         exit(0);
  51     b_ctrl_c = 1;
  52 }
  53
  54 typedef struct {
  55     int b_progress;
  56     int i_seek;
  57     hnd_t hin;
  58     hnd_t hout;
  59     FILE *qpfile;
  60 } cli_opt_t;
  61
  62 /* i/o file operation function pointer structs */
  63 cli_input_t input;
  64 static cli_output_t output;
  65
  66 static const char * const demuxer_names[] =
  67 {
  68     "auto",
  69     "yuv",
  70     "y4m",
  71 #ifdef AVS_INPUT
  72     "avs",
  73 #endif
  74 #ifdef LAVF_INPUT
  75     "lavf",
  76 #endif
  77 #ifdef FFMS_INPUT
  78     "ffms",
  79 #endif
  80     0
  81 };
  82
  83 static const char * const muxer_names[] =
  84 {
  85     "auto",
  86     "raw",
  87     "mkv",
  88     "flv",
  89 #ifdef MP4_OUTPUT
  90     "mp4",
  91 #endif
  92     0
  93 };
  94
  95 static void Help( x264_param_t *defaults, int longhelp );
  96 static int  Parse( int argc, char **argv, x264_param_t *param, cli_opt_t *opt );
  97 static int  Encode( x264_param_t *param, cli_opt_t *opt );
  98
  99 /****************************************************************************
 100  * main:
 101  ****************************************************************************/
 102 int main( int argc, char **argv )
 103 {
 104     x264_param_t param;
 105     cli_opt_t opt;
 106     int ret;
 107
 108 #ifdef PTW32_STATIC_LIB
 109     pthread_win32_process_attach_np();
 110     pthread_win32_thread_attach_np();
 111 #endif
 112
 113 #ifdef _WIN32
 114     _setmode(_fileno(stdin), _O_BINARY);
 115     _setmode(_fileno(stdout), _O_BINARY);
 116 #endif
 117
 118     x264_param_default( &param );
 119
 120     /* Parse command line */
 121     if( Parse( argc, argv, &param, &opt ) < 0 )
 122         return -1;
 123
 124     /* Control-C handler */
 125     signal( SIGINT, SigIntHandler );
 126
 127     ret = Encode( &param, &opt );
 128
 129 #ifdef PTW32_STATIC_LIB
 130     pthread_win32_thread_detach_np();
 131     pthread_win32_process_detach_np();
 132 #endif
 133
 134     return ret;
 135 }
 136
 137 static char const *strtable_lookup( const char * const table[], int index )
 138 {
 139     int i = 0; while( table[i] ) i++;
 140     return ( ( index >= 0 && index < i ) ? table[ index ] : "???" );
 141 }
 142
 143 static char *stringify_names( char *buf, const char * const names[] )
 144 {
 145     int i = 0;
 146     char *p = buf;
 147     for( p[0] = 0; names[i]; i++ )
 148     {
 149         p += sprintf( p, "%s", names[i] );
 150         if( names[i+1] )
 151             p += sprintf( p, ", " );
 152     }
 153     return buf;
 154 }
 155
 156 /*****************************************************************************
 157  * Help:
 158  *****************************************************************************/
 159 static void Help( x264_param_t *defaults, int longhelp )
 160 {
 161     char buf[50];
 162 #define H0 printf
 163 #define H1 if(longhelp>=1) printf
 164 #define H2 if(longhelp==2) printf
 165     H0( "x264 core:%d%s\n"
 166         "Syntax: x264 [options] -o outfile infile [widthxheight]\n"
 167         "\n"
 168         "Infile can be raw YUV 4:2:0 (in which case resolution is required),\n"
 169         "  or YUV4MPEG 4:2:0 (*.y4m),\n"
 170         "  or Avisynth if compiled with support (%s).\n"
 171         "  or libav* formats if compiled with lavf support (%s) or ffms support (%s).\n"
 172         "Outfile type is selected by filename:\n"
 173         " .264 -> Raw bytestream\n"
 174         " .mkv -> Matroska\n"
 175         " .flv -> Flash Video\n"
 176         " .mp4 -> MP4 if compiled with GPAC support (%s)\n"
 177         "\n"
 178         "Options:\n"
 179         "\n"
 180         "  -h, --help                  List basic options\n"
 181         "      --longhelp              List more options\n"
 182         "      --fullhelp              List all options\n"
 183         "\n",
 184         X264_BUILD, X264_VERSION,
 185 #ifdef AVS_INPUT
 186         "yes",
 187 #else
 188         "no",
 189 #endif
 190 #ifdef LAVF_INPUT
 191         "yes",
 192 #else
 193         "no",
 194 #endif
 195 #ifdef FFMS_INPUT
 196         "yes",
 197 #else
 198         "no",
 199 #endif
 200 #ifdef MP4_OUTPUT
 201         "yes"
 202 #else
 203         "no"
 204 #endif
 205       );
 206     H0( "Example usage:\n" );
 207     H0( "\n" );
 208     H0( "      Constant quality mode:\n" );
 209     H0( "            x264 --crf 24 -o <output> <input>\n" );
 210     H0( "\n" );
 211     H0( "      Two-pass with a bitrate of 1000kbps:\n" );
 212     H0( "            x264 --pass 1 --bitrate 1000 -o <output> <input>\n" );
 213     H0( "            x264 --pass 2 --bitrate 1000 -o <output> <input>\n" );
 214     H0( "\n" );
 215     H0( "      Lossless:\n" );
 216     H0( "            x264 --crf 0 -o <output> <input>\n" );
 217     H0( "\n" );
 218     H0( "      Maximum PSNR at the cost of speed and visual quality:\n" );
 219     H0( "            x264 --preset placebo --tune psnr -o <output> <input>\n" );
 220     H0( "\n" );
 221     H0( "      Constant bitrate at 1000kbps with a 2 second-buffer:\n");
 222     H0( "            x264 --vbv-bufsize 2000 --bitrate 1000 -o <output> <input>\n" );
 223     H0( "\n" );
 224     H0( "Presets:\n" );
 225     H0( "\n" );
 226     H0( "      --profile               Force H.264 profile [high]\n" );
 227     H0( "                                  Overrides all settings\n" );
 228     H2( "                                  - baseline:\n"
 229         "                                    --no-8x8dct --bframes 0 --no-cabac\n"
 230         "                                    --cqm flat --weightp 0 No interlaced\n"
 231         "                                    No lossless\n"
 232         "                                  - main:\n"
 233         "                                    --no-8x8dct --cqm flat No lossless\n"
 234         "                                  - high:\n"
 235         "                                    No lossless\n" );
 236         else H0( "                                  - baseline,main,high\n" );
 237     H0( "      --preset                Use a preset to select encoding settings [medium]\n" );
 238     H0( "                                  Overridden by user settings\n" );
 239     H2( "                                  - ultrafast:\n"
 240         "                                    --no-8x8dct --aq-mode 0 --b-adapt 0\n"
 241         "                                    --bframes 0 --no-cabac --no-deblock\n"
 242         "                                    --no-mbtree --me dia --no-mixed-refs\n"
 243         "                                    --partitions none --ref 1 --scenecut 0\n"
 244         "                                    --subme 0 --trellis 0 --no-weightb\n"
 245         "                                    --weightp 0\n"
 246         "                                  - veryfast:\n"
 247         "                                    --no-mbtree --me dia --no-mixed-refs\n"
 248         "                                    --partitions i8x8,i4x4 --ref 1\n"
 249         "                                    --subme 1 --trellis 0 --weightp 0\n"
 250         "                                  - faster:\n"
 251         "                                    --no-mbtree --no-mixed-refs --ref 2\n"
 252         "                                    --subme 4 --weightp 1\n"
 253         "                                  - fast\n"
 254         "                                    --rc-lookahead 30 --ref 2 --subme 6\n"
 255         "                                  - medium\n"
 256         "                                    Default settings apply.\n"
 257         "                                  - slow\n"
 258         "                                    --b-adapt 2 --direct auto --me umh\n"
 259         "                                    --rc-lookahead 50 --ref 5 --subme 8\n"
 260         "                                  - slower\n"
 261         "                                    --b-adapt 2 --direct auto --me umh\n"
 262         "                                    --partitions all --rc-lookahead 60\n"
 263         "                                    --ref 8 --subme 9 --trellis 2\n"
 264         "                                  - veryslow\n"
 265         "                                    --b-adapt 2 --bframes 8 --direct auto\n"
 266         "                                    --me umh --merange 24 --partitions all\n"
 267         "                                    --ref 16 --subme 10 --trellis 2\n"
 268         "                                    --rc-lookahead 60\n"
 269         "                                  - placebo\n"
 270         "                                    --bframes 16 --b-adapt 2 --direct auto\n"
 271         "                                    --slow-firstpass --no-fast-pskip\n"
 272         "                                    --me tesa --merange 24 --partitions all\n"
 273         "                                    --rc-lookahead 60 --ref 16 --subme 10\n"
 274         "                                    --trellis 2\n" );
 275     else H0( "                                  - ultrafast,veryfast,faster,fast,medium\n"
 276              "                                  - slow,slower,veryslow,placebo\n" );
 277     H0( "      --tune                  Tune the settings for a particular type of source\n" );
 278     H0( "                                  Overridden by user settings\n" );
 279     H2( "                                  - film:\n"
 280         "                                    --deblock -1:-1 --psy-rd <unset>:0.15\n"
 281         "                                  - animation:\n"
 282         "                                    --bframes {+2} --deblock 1:1\n"
 283         "                                    --psy-rd 0.4:<unset> --aq-strength 0.6\n"
 284         "                                    --ref {Double if >1 else 1}\n"
 285         "                                  - grain:\n"
 286         "                                    --aq-strength 0.5 --no-dct-decimate\n"
 287         "                                    --deadzone-inter 6 --deadzone-intra 6\n"
 288         "                                    --deblock -2:-2 --ipratio 1.1 \n"
 289         "                                    --pbratio 1.1 --psy-rd <unset>:0.25\n"
 290         "                                    --qcomp 0.8\n"
 291         "                                  - psnr:\n"
 292         "                                    --aq-mode 0 --no-psy\n"
 293         "                                  - ssim:\n"
 294         "                                    --aq-mode 2 --no-psy\n"
 295         "                                  - fastdecode:\n"
 296         "                                    --no-cabac --no-deblock --no-weightb\n"
 297         "                                    --weightp 0\n"
 298         "                                  - zerolatency:\n"
 299         "                                    --bframes 0 --rc-lookahead 0\n"
 300         "                                    --sync-lookahead 0 --sliced-threads\n"
 301         "                                  - touhou:\n"
 302         "                                    --aq-strength 1.3 --deblock -1:-1\n"
 303         "                                    --partitions {p4x4 if p8x8 set}\n"
 304         "                                    --psy-rd <unset>:0.2\n"
 305         "                                    --ref {Double if >1 else 1}\n" );
 306     else H0( "                                  - film,animation,grain,psnr,ssim\n"
 307              "                                  - fastdecode,zerolatency\n" );
 308     H1( "      --slow-firstpass        Don't use faster settings with --pass 1\n" );
 309     H0( "\n" );
 310     H0( "Frame-type options:\n" );
 311     H0( "\n" );
 312     H0( "  -I, --keyint <integer>      Maximum GOP size [%d]\n", defaults->i_keyint_max );
 313     H2( "  -i, --min-keyint <integer>  Minimum GOP size [%d]\n", defaults->i_keyint_min );
 314     H2( "      --no-scenecut           Disable adaptive I-frame decision\n" );
 315     H2( "      --scenecut <integer>    How aggressively to insert extra I-frames [%d]\n", defaults->i_scenecut_threshold );
 316     H2( "      --intra-refresh         Use Periodic Intra Refresh instead of IDR frames\n" );
 317     H1( "  -b, --bframes <integer>     Number of B-frames between I and P [%d]\n", defaults->i_bframe );
 318     H1( "      --b-adapt <integer>     Adaptive B-frame decision method [%d]\n"
 319         "                                  Higher values may lower threading efficiency.\n"
 320         "                                  - 0: Disabled\n"
 321         "                                  - 1: Fast\n"
 322         "                                  - 2: Optimal (slow with high --bframes)\n", defaults->i_bframe_adaptive );
 323     H2( "      --b-bias <integer>      Influences how often B-frames are used [%d]\n", defaults->i_bframe_bias );
 324     H1( "      --b-pyramid <string>    Keep some B-frames as references [%s]\n"
 325         "                                  - none: Disabled\n"
 326         "                                  - strict: Strictly hierarchical pyramid\n"
 327         "                                  - normal: Non-strict (not Blu-ray compatible)\n",
 328         strtable_lookup( x264_b_pyramid_names, defaults->i_bframe_pyramid ) );
 329     H1( "      --no-cabac              Disable CABAC\n" );
 330     H1( "  -r, --ref <integer>         Number of reference frames [%d]\n", defaults->i_frame_reference );
 331     H1( "      --no-deblock            Disable loop filter\n" );
 332     H1( "  -f, --deblock <alpha:beta>  Loop filter parameters [%d:%d]\n",
 333                                        defaults->i_deblocking_filter_alphac0, defaults->i_deblocking_filter_beta );
 334     H2( "      --slices <integer>      Number of slices per frame; forces rectangular\n"
 335         "                              slices and is overridden by other slicing options\n" );
 336     else H1( "      --slices <integer>      Number of slices per frame\n" );
 337     H2( "      --slice-max-size <integer> Limit the size of each slice in bytes\n");
 338     H2( "      --slice-max-mbs <integer> Limit the size of each slice in macroblocks\n");
 339     H0( "      --interlaced            Enable pure-interlaced mode\n" );
 340     H2( "      --constrained-intra     Enable constrained intra prediction.\n" );
 341     H0( "\n" );
 342     H0( "Ratecontrol:\n" );
 343     H0( "\n" );
 344     H1( "  -q, --qp <integer>          Force constant QP (0-51, 0=lossless)\n" );
 345     H0( "  -B, --bitrate <integer>     Set bitrate (kbit/s)\n" );
 346     H0( "      --crf <float>           Quality-based VBR (0-51, 0=lossless) [%.1f]\n", defaults->rc.f_rf_constant );
 347     H1( "      --rc-lookahead <integer> Number of frames for frametype lookahead [%d]\n", defaults->rc.i_lookahead );
 348     H0( "      --vbv-maxrate <integer> Max local bitrate (kbit/s) [%d]\n", defaults->rc.i_vbv_max_bitrate );
 349     H0( "      --vbv-bufsize <integer> Set size of the VBV buffer (kbit) [%d]\n", defaults->rc.i_vbv_buffer_size );
 350     H2( "      --vbv-init <float>      Initial VBV buffer occupancy [%.1f]\n", defaults->rc.f_vbv_buffer_init );
 351     H2( "      --qpmin <integer>       Set min QP [%d]\n", defaults->rc.i_qp_min );
 352     H2( "      --qpmax <integer>       Set max QP [%d]\n", defaults->rc.i_qp_max );
 353     H2( "      --qpstep <integer>      Set max QP step [%d]\n", defaults->rc.i_qp_step );
 354     H2( "      --ratetol <float>       Tolerance of ABR ratecontrol and VBV [%.1f]\n", defaults->rc.f_rate_tolerance );
 355     H2( "      --ipratio <float>       QP factor between I and P [%.2f]\n", defaults->rc.f_ip_factor );
 356     H2( "      --pbratio <float>       QP factor between P and B [%.2f]\n", defaults->rc.f_pb_factor );
 357     H2( "      --chroma-qp-offset <integer>  QP difference between chroma and luma [%d]\n", defaults->analyse.i_chroma_qp_offset );
 358     H2( "      --aq-mode <integer>     AQ method [%d]\n"
 359         "                                  - 0: Disabled\n"
 360         "                                  - 1: Variance AQ (complexity mask)\n"
 361         "                                  - 2: Auto-variance AQ (experimental)\n", defaults->rc.i_aq_mode );
 362     H1( "      --aq-strength <float>   Reduces blocking and blurring in flat and\n"
 363         "                              textured areas. [%.1f]\n", defaults->rc.f_aq_strength );
 364     H1( "\n" );
 365     H0( "  -p, --pass <integer>        Enable multipass ratecontrol\n"
 366         "                                  - 1: First pass, creates stats file\n"
 367         "                                  - 2: Last pass, does not overwrite stats file\n" );
 368     H2( "                                  - 3: Nth pass, overwrites stats file\n" );
 369     H1( "      --stats <string>        Filename for 2 pass stats [\"%s\"]\n", defaults->rc.psz_stat_out );
 370     H2( "      --no-mbtree             Disable mb-tree ratecontrol.\n");
 371     H2( "      --qcomp <float>         QP curve compression [%.2f]\n", defaults->rc.f_qcompress );
 372     H2( "      --cplxblur <float>      Reduce fluctuations in QP (before curve compression) [%.1f]\n", defaults->rc.f_complexity_blur );
 373     H2( "      --qblur <float>         Reduce fluctuations in QP (after curve compression) [%.1f]\n", defaults->rc.f_qblur );
 374     H2( "      --zones <zone0>/<zone1>/...  Tweak the bitrate of regions of the video\n" );
 375     H2( "                              Each zone is of the form\n"
 376         "                                  <start frame>,<end frame>,<option>\n"
 377         "                                  where <option> is either\n"
 378         "                                      q=<integer> (force QP)\n"
 379         "                                  or  b=<float> (bitrate multiplier)\n" );
 380     H2( "      --qpfile <string>       Force frametypes and QPs for some or all frames\n"
 381         "                              Format of each line: framenumber frametype QP\n"
 382         "                              QP of -1 lets x264 choose. Frametypes: I,i,P,B,b.\n"
 383         "                              QPs are restricted by qpmin/qpmax.\n" );
 384     H1( "\n" );
 385     H1( "Analysis:\n" );
 386     H1( "\n" );
 387     H1( "  -A, --partitions <string>   Partitions to consider [\"p8x8,b8x8,i8x8,i4x4\"]\n"
 388         "                                  - p8x8, p4x4, b8x8, i8x8, i4x4\n"
 389         "                                  - none, all\n"
 390         "                                  (p4x4 requires p8x8. i8x8 requires --8x8dct.)\n" );
 391     H1( "      --direct <string>       Direct MV prediction mode [\"%s\"]\n"
 392         "                                  - none, spatial, temporal, auto\n",
 393                                        strtable_lookup( x264_direct_pred_names, defaults->analyse.i_direct_mv_pred ) );
 394     H2( "      --no-weightb            Disable weighted prediction for B-frames\n" );
 395     H1( "      --weightp <integer>     Weighted prediction for P-frames [%d]\n"
 396         "                              - 0: Disabled\n"
 397         "                              - 1: Blind offset\n"
 398         "                              - 2: Smart analysis\n", defaults->analyse.i_weighted_pred );
 399     H1( "      --me <string>           Integer pixel motion estimation method [\"%s\"]\n",
 400                                        strtable_lookup( x264_motion_est_names, defaults->analyse.i_me_method ) );
 401     H2( "                                  - dia: diamond search, radius 1 (fast)\n"
 402         "                                  - hex: hexagonal search, radius 2\n"
 403         "                                  - umh: uneven multi-hexagon search\n"
 404         "                                  - esa: exhaustive search\n"
 405         "                                  - tesa: hadamard exhaustive search (slow)\n" );
 406     else H1( "                                  - dia, hex, umh\n" );
 407     H2( "      --merange <integer>     Maximum motion vector search range [%d]\n", defaults->analyse.i_me_range );
 408     H2( "      --mvrange <integer>     Maximum motion vector length [-1 (auto)]\n" );
 409     H2( "      --mvrange-thread <int>  Minimum buffer between threads [-1 (auto)]\n" );
 410     H1( "  -m, --subme <integer>       Subpixel motion estimation and mode decision [%d]\n", defaults->analyse.i_subpel_refine );
 411     H2( "                                  - 0: fullpel only (not recommended)\n"
 412         "                                  - 1: SAD mode decision, one qpel iteration\n"
 413         "                                  - 2: SATD mode decision\n"
 414         "                                  - 3-5: Progressively more qpel\n"
 415         "                                  - 6: RD mode decision for I/P-frames\n"
 416         "                                  - 7: RD mode decision for all frames\n"
 417         "                                  - 8: RD refinement for I/P-frames\n"
 418         "                                  - 9: RD refinement for all frames\n"
 419         "                                  - 10: QP-RD - requires trellis=2, aq-mode>0\n" );
 420     else H1( "                                  decision quality: 1=fast, 10=best.\n"  );
 421     H1( "      --psy-rd                Strength of psychovisual optimization [\"%.1f:%.1f\"]\n"
 422         "                                  #1: RD (requires subme>=6)\n"
 423         "                                  #2: Trellis (requires trellis, experimental)\n",
 424                                        defaults->analyse.f_psy_rd, defaults->analyse.f_psy_trellis );
 425     H2( "      --no-psy                Disable all visual optimizations that worsen\n"
 426         "                              both PSNR and SSIM.\n" );
 427     H2( "      --no-mixed-refs         Don't decide references on a per partition basis\n" );
 428     H2( "      --no-chroma-me          Ignore chroma in motion estimation\n" );
 429     H1( "      --no-8x8dct             Disable adaptive spatial transform size\n" );
 430     H1( "  -t, --trellis <integer>     Trellis RD quantization. Requires CABAC. [%d]\n"
 431         "                                  - 0: disabled\n"
 432         "                                  - 1: enabled only on the final encode of a MB\n"
 433         "                                  - 2: enabled on all mode decisions\n", defaults->analyse.i_trellis );
 434     H2( "      --no-fast-pskip         Disables early SKIP detection on P-frames\n" );
 435     H2( "      --no-dct-decimate       Disables coefficient thresholding on P-frames\n" );
 436     H1( "      --nr <integer>          Noise reduction [%d]\n", defaults->analyse.i_noise_reduction );
 437     H2( "\n" );
 438     H2( "      --deadzone-inter <int>  Set the size of the inter luma quantization deadzone [%d]\n", defaults->analyse.i_luma_deadzone[0] );
 439     H2( "      --deadzone-intra <int>  Set the size of the intra luma quantization deadzone [%d]\n", defaults->analyse.i_luma_deadzone[1] );
 440     H2( "                                  Deadzones should be in the range 0 - 32.\n" );
 441     H2( "      --cqm <string>          Preset quant matrices [\"flat\"]\n"
 442         "                                  - jvt, flat\n" );
 443     H1( "      --cqmfile <string>      Read custom quant matrices from a JM-compatible file\n" );
 444     H2( "                                  Overrides any other --cqm* options.\n" );
 445     H2( "      --cqm4 <list>           Set all 4x4 quant matrices\n"
 446         "                                  Takes a comma-separated list of 16 integers.\n" );
 447     H2( "      --cqm8 <list>           Set all 8x8 quant matrices\n"
 448         "                                  Takes a comma-separated list of 64 integers.\n" );
 449     H2( "      --cqm4i, --cqm4p, --cqm8i, --cqm8p\n"
 450         "                              Set both luma and chroma quant matrices\n" );
 451     H2( "      --cqm4iy, --cqm4ic, --cqm4py, --cqm4pc\n"
 452         "                              Set individual quant matrices\n" );
 453     H2( "\n" );
 454     H2( "Video Usability Info (Annex E):\n" );
 455     H2( "The VUI settings are not used by the encoder but are merely suggestions to\n" );
 456     H2( "the playback equipment. See doc/vui.txt for details. Use at your own risk.\n" );
 457     H2( "\n" );
 458     H2( "      --overscan <string>     Specify crop overscan setting [\"%s\"]\n"
 459         "                                  - undef, show, crop\n",
 460                                        strtable_lookup( x264_overscan_names, defaults->vui.i_overscan ) );
 461     H2( "      --videoformat <string>  Specify video format [\"%s\"]\n"
 462         "                                  - component, pal, ntsc, secam, mac, undef\n",
 463                                        strtable_lookup( x264_vidformat_names, defaults->vui.i_vidformat ) );
 464     H2( "      --fullrange <string>    Specify full range samples setting [\"%s\"]\n"
 465         "                                  - off, on\n",
 466                                        strtable_lookup( x264_fullrange_names, defaults->vui.b_fullrange ) );
 467     H2( "      --colorprim <string>    Specify color primaries [\"%s\"]\n"
 468         "                                  - undef, bt709, bt470m, bt470bg\n"
 469         "                                    smpte170m, smpte240m, film\n",
 470                                        strtable_lookup( x264_colorprim_names, defaults->vui.i_colorprim ) );
 471     H2( "      --transfer <string>     Specify transfer characteristics [\"%s\"]\n"
 472         "                                  - undef, bt709, bt470m, bt470bg, linear,\n"
 473         "                                    log100, log316, smpte170m, smpte240m\n",
 474                                        strtable_lookup( x264_transfer_names, defaults->vui.i_transfer ) );
 475     H2( "      --colormatrix <string>  Specify color matrix setting [\"%s\"]\n"
 476         "                                  - undef, bt709, fcc, bt470bg\n"
 477         "                                    smpte170m, smpte240m, GBR, YCgCo\n",
 478                                        strtable_lookup( x264_colmatrix_names, defaults->vui.i_colmatrix ) );
 479     H2( "      --chromaloc <integer>   Specify chroma sample location (0 to 5) [%d]\n",
 480                                        defaults->vui.i_chroma_loc );
 481     H0( "\n" );
 482     H0( "Input/Output:\n" );
 483     H0( "\n" );
 484     H0( "  -o, --output                Specify output file\n" );
 485     H1( "      --muxer <string>        Specify output container format [\"%s\"]\n"
 486         "                                  - %s\n", muxer_names[0], stringify_names( buf, muxer_names ) );
 487     H1( "      --demuxer <string>      Specify input container format [\"%s\"]\n"
 488         "                                  - %s\n", demuxer_names[0], stringify_names( buf, demuxer_names ) );
 489     H1( "      --index <string>        Filename for input index file\n" );
 490     H0( "      --sar width:height      Specify Sample Aspect Ratio\n" );
 491     H0( "      --fps <float|rational>  Specify framerate\n" );
 492     H0( "      --seek <integer>        First frame to encode\n" );
 493     H0( "      --frames <integer>      Maximum number of frames to encode\n" );
 494     H0( "      --level <string>        Specify level (as defined by Annex A)\n" );
 495     H1( "\n" );
 496     H1( "  -v, --verbose               Print stats for each frame\n" );
 497     H1( "      --no-progress           Don't show the progress indicator while encoding\n" );
 498     H0( "      --quiet                 Quiet Mode\n" );
 499     H1( "      --psnr                  Enable PSNR computation\n" );
 500     H1( "      --ssim                  Enable SSIM computation\n" );
 501     H1( "      --threads <integer>     Force a specific number of threads\n" );
 502     H2( "      --sliced-threads        Low-latency but lower-efficiency threading\n" );
 503     H2( "      --thread-input          Run Avisynth in its own thread\n" );
 504     H2( "      --sync-lookahead <integer> Number of buffer frames for threaded lookahead\n" );
 505     H2( "      --non-deterministic     Slightly improve quality of SMP, at the cost of repeatability\n" );
 506     H2( "      --asm <integer>         Override CPU detection\n" );
 507     H2( "      --no-asm                Disable all CPU optimizations\n" );
 508     H2( "      --visualize             Show MB types overlayed on the encoded video\n" );
 509     H2( "      --dump-yuv <string>     Save reconstructed frames\n" );
 510     H2( "      --sps-id <integer>      Set SPS and PPS id numbers [%d]\n", defaults->i_sps_id );
 511     H2( "      --aud                   Use access unit delimiters\n" );
 512     H2( "      --force-cfr             Force constant framerate timestamp generation\n" );
 513     H0( "\n" );
 514 }
 515
 516 #define OPT_FRAMES 256
 517 #define OPT_SEEK 257
 518 #define OPT_QPFILE 258
 519 #define OPT_THREAD_INPUT 259
 520 #define OPT_QUIET 260
 521 #define OPT_NOPROGRESS 261
 522 #define OPT_VISUALIZE 262
 523 #define OPT_LONGHELP 263
 524 #define OPT_PROFILE 264
 525 #define OPT_PRESET 265
 526 #define OPT_TUNE 266
 527 #define OPT_SLOWFIRSTPASS 267
 528 #define OPT_FULLHELP 268
 529 #define OPT_FPS 269
 530 #define OPT_MUXER 270
 531 #define OPT_DEMUXER 271
 532 #define OPT_INDEX 272
 533 #define OPT_INTERLACED 273
 534
 535 static char short_options[] = "8A:B:b:f:hI:i:m:o:p:q:r:t:Vvw";
 536 static struct option long_options[] =
 537 {
 538     { "help",              no_argument, NULL, 'h' },
 539     { "longhelp",          no_argument, NULL, OPT_LONGHELP },
 540     { "fullhelp",          no_argument, NULL, OPT_FULLHELP },
 541     { "version",           no_argument, NULL, 'V' },
 542     { "profile",     required_argument, NULL, OPT_PROFILE },
 543     { "preset",      required_argument, NULL, OPT_PRESET },
 544     { "tune",        required_argument, NULL, OPT_TUNE },
 545     { "slow-firstpass",    no_argument, NULL, OPT_SLOWFIRSTPASS },
 546     { "bitrate",     required_argument, NULL, 'B' },
 547     { "bframes",     required_argument, NULL, 'b' },
 548     { "b-adapt",     required_argument, NULL, 0 },
 549     { "no-b-adapt",        no_argument, NULL, 0 },
 550     { "b-bias",      required_argument, NULL, 0 },
 551     { "b-pyramid",   required_argument, NULL, 0 },
 552     { "min-keyint",  required_argument, NULL, 'i' },
 553     { "keyint",      required_argument, NULL, 'I' },
 554     { "intra-refresh",     no_argument, NULL, 0 },
 555     { "scenecut",    required_argument, NULL, 0 },
 556     { "no-scenecut",       no_argument, NULL, 0 },
 557     { "nf",                no_argument, NULL, 0 },
 558     { "no-deblock",        no_argument, NULL, 0 },
 559     { "filter",      required_argument, NULL, 0 },
 560     { "deblock",     required_argument, NULL, 'f' },
 561     { "interlaced",        no_argument, NULL, OPT_INTERLACED },
 562     { "no-interlaced",     no_argument, NULL, OPT_INTERLACED },
 563     { "constrained-intra", no_argument, NULL, 0 },
 564     { "cabac",             no_argument, NULL, 0 },
 565     { "no-cabac",          no_argument, NULL, 0 },
 566     { "qp",          required_argument, NULL, 'q' },
 567     { "qpmin",       required_argument, NULL, 0 },
 568     { "qpmax",       required_argument, NULL, 0 },
 569     { "qpstep",      required_argument, NULL, 0 },
 570     { "crf",         required_argument, NULL, 0 },
 571     { "rc-lookahead",required_argument, NULL, 0 },
 572     { "ref",         required_argument, NULL, 'r' },
 573     { "asm",         required_argument, NULL, 0 },
 574     { "no-asm",            no_argument, NULL, 0 },
 575     { "sar",         required_argument, NULL, 0 },
 576     { "fps",         required_argument, NULL, OPT_FPS },
 577     { "frames",      required_argument, NULL, OPT_FRAMES },
 578     { "seek",        required_argument, NULL, OPT_SEEK },
 579     { "output",      required_argument, NULL, 'o' },
 580     { "muxer",       required_argument, NULL, OPT_MUXER },
 581     { "demuxer",     required_argument, NULL, OPT_DEMUXER },
 582     { "stdout",      required_argument, NULL, OPT_MUXER },
 583     { "stdin",       required_argument, NULL, OPT_DEMUXER },
 584     { "index",       required_argument, NULL, OPT_INDEX },
 585     { "analyse",     required_argument, NULL, 0 },
 586     { "partitions",  required_argument, NULL, 'A' },
 587     { "direct",      required_argument, NULL, 0 },
 588     { "weightb",           no_argument, NULL, 'w' },
 589     { "no-weightb",        no_argument, NULL, 0 },
 590     { "weightp",     required_argument, NULL, 0 },
 591     { "me",          required_argument, NULL, 0 },
 592     { "merange",     required_argument, NULL, 0 },
 593     { "mvrange",     required_argument, NULL, 0 },
 594     { "mvrange-thread", required_argument, NULL, 0 },
 595     { "subme",       required_argument, NULL, 'm' },
 596     { "psy-rd",      required_argument, NULL, 0 },
 597     { "no-psy",            no_argument, NULL, 0 },
 598     { "psy",               no_argument, NULL, 0 },
 599     { "mixed-refs",        no_argument, NULL, 0 },
 600     { "no-mixed-refs",     no_argument, NULL, 0 },
 601     { "no-chroma-me",      no_argument, NULL, 0 },
 602     { "8x8dct",            no_argument, NULL, 0 },
 603     { "no-8x8dct",         no_argument, NULL, 0 },
 604     { "trellis",     required_argument, NULL, 't' },
 605     { "fast-pskip",        no_argument, NULL, 0 },
 606     { "no-fast-pskip",     no_argument, NULL, 0 },
 607     { "no-dct-decimate",   no_argument, NULL, 0 },
 608     { "aq-strength", required_argument, NULL, 0 },
 609     { "aq-mode",     required_argument, NULL, 0 },
 610     { "deadzone-inter", required_argument, NULL, '0' },
 611     { "deadzone-intra", required_argument, NULL, '0' },
 612     { "level",       required_argument, NULL, 0 },
 613     { "ratetol",     required_argument, NULL, 0 },
 614     { "vbv-maxrate", required_argument, NULL, 0 },
 615     { "vbv-bufsize", required_argument, NULL, 0 },
 616     { "vbv-init",    required_argument, NULL,  0 },
 617     { "ipratio",     required_argument, NULL, 0 },
 618     { "pbratio",     required_argument, NULL, 0 },
 619     { "chroma-qp-offset", required_argument, NULL, 0 },
 620     { "pass",        required_argument, NULL, 'p' },
 621     { "stats",       required_argument, NULL, 0 },
 622     { "qcomp",       required_argument, NULL, 0 },
 623     { "mbtree",            no_argument, NULL, 0 },
 624     { "no-mbtree",         no_argument, NULL, 0 },
 625     { "qblur",       required_argument, NULL, 0 },
 626     { "cplxblur",    required_argument, NULL, 0 },
 627     { "zones",       required_argument, NULL, 0 },
 628     { "qpfile",      required_argument, NULL, OPT_QPFILE },
 629     { "threads",     required_argument, NULL, 0 },
 630     { "sliced-threads",    no_argument, NULL, 0 },
 631     { "no-sliced-threads", no_argument, NULL, 0 },
 632     { "slice-max-size",    required_argument, NULL, 0 },
 633     { "slice-max-mbs",     required_argument, NULL, 0 },
 634     { "slices",            required_argument, NULL, 0 },
 635     { "thread-input",      no_argument, NULL, OPT_THREAD_INPUT },
 636     { "sync-lookahead",    required_argument, NULL, 0 },
 637     { "non-deterministic", no_argument, NULL, 0 },
 638     { "psnr",              no_argument, NULL, 0 },
 639     { "ssim",              no_argument, NULL, 0 },
 640     { "quiet",             no_argument, NULL, OPT_QUIET },
 641     { "verbose",           no_argument, NULL, 'v' },
 642     { "no-progress",       no_argument, NULL, OPT_NOPROGRESS },
 643     { "visualize",         no_argument, NULL, OPT_VISUALIZE },
 644     { "dump-yuv",    required_argument, NULL, 0 },
 645     { "sps-id",      required_argument, NULL, 0 },
 646     { "aud",               no_argument, NULL, 0 },
 647     { "nr",          required_argument, NULL, 0 },
 648     { "cqm",         required_argument, NULL, 0 },
 649     { "cqmfile",     required_argument, NULL, 0 },
 650     { "cqm4",        required_argument, NULL, 0 },
 651     { "cqm4i",       required_argument, NULL, 0 },
 652     { "cqm4iy",      required_argument, NULL, 0 },
 653     { "cqm4ic",      required_argument, NULL, 0 },
 654     { "cqm4p",       required_argument, NULL, 0 },
 655     { "cqm4py",      required_argument, NULL, 0 },
 656     { "cqm4pc",      required_argument, NULL, 0 },
 657     { "cqm8",        required_argument, NULL, 0 },
 658     { "cqm8i",       required_argument, NULL, 0 },
 659     { "cqm8p",       required_argument, NULL, 0 },
 660     { "overscan",    required_argument, NULL, 0 },
 661     { "videoformat", required_argument, NULL, 0 },
 662     { "fullrange",   required_argument, NULL, 0 },
 663     { "colorprim",   required_argument, NULL, 0 },
 664     { "transfer",    required_argument, NULL, 0 },
 665     { "colormatrix", required_argument, NULL, 0 },
 666     { "chromaloc",   required_argument, NULL, 0 },
 667     { "force-cfr",         no_argument, NULL, 0 },
 668     {0, 0, 0, 0}
 669 };
 670
 671 static int select_output( const char *muxer, char *filename, x264_param_t *param )
 672 {
 673     const char *ext = get_filename_extension( filename );
 674     if( !strcmp( filename, "-" ) || strcasecmp( muxer, "auto" ) )
 675         ext = muxer;
 676
 677     if( !strcasecmp( ext, "mp4" ) )
 678     {
 679 #ifdef MP4_OUTPUT
 680         output = mp4_output;
 681         param->b_annexb = 0;
 682         param->b_aud = 0;
 683         param->b_repeat_headers = 0;
 684 #else
 685         fprintf( stderr, "x264 [error]: not compiled with MP4 output support\n" );
 686         return -1;
 687 #endif
 688     }
 689     else if( !strcasecmp( ext, "mkv" ) )
 690     {
 691         output = mkv_output;
 692         param->b_annexb = 0;
 693         param->b_aud = 0;
 694         param->b_repeat_headers = 0;
 695     }
 696     else if( !strcasecmp( ext, "flv" ) )
 697     {
 698         output = flv_output;
 699         param->b_annexb = 0;
 700         param->b_aud = 0;
 701         param->b_repeat_headers = 0;
 702     }
 703     else
 704         output = raw_output;
 705     return 0;
 706 }
 707
 708 static int select_input( const char *demuxer, char *used_demuxer, char *filename,
 709                          hnd_t *p_handle, video_info_t *info, cli_input_opt_t *opt )
 710 {
 711     const char *ext = get_filename_extension( filename );
 712     int b_regular = strcmp( filename, "-" );
 713     int b_auto = !strcasecmp( demuxer, "auto" );
 714     if( !b_regular && b_auto )
 715         ext = "yuv";
 716     if( b_regular )
 717     {
 718         FILE *f = fopen( filename, "r" );
 719         if( !f )
 720         {
 721             fprintf( stderr, "x264 [error]: could not open input file `%s'\n", filename );
 722             return -1;
 723         }
 724         b_regular = x264_is_regular_file( f );
 725         fclose( f );
 726     }
 727     const char *module = b_auto ? ext : demuxer;
 728
 729     if( !strcasecmp( module, "avs" ) || !strcasecmp( ext, "d2v" ) || !strcasecmp( ext, "dga" ) )
 730     {
 731 #ifdef AVS_INPUT
 732         input = avs_input;
 733         module = "avs";
 734 #else
 735         fprintf( stderr, "x264 [error]: not compiled with AVS input support\n" );
 736         return -1;
 737 #endif
 738     }
 739     else if( !strcasecmp( module, "y4m" ) )
 740         input = y4m_input;
 741     else if( !strcasecmp( module, "yuv" ) )
 742         input = yuv_input;
 743     else
 744     {
 745 #ifdef FFMS_INPUT
 746         if( b_regular && (b_auto || !strcasecmp( demuxer, "ffms" )) &&
 747             !ffms_input.open_file( filename, p_handle, info, opt ) )
 748         {
 749             module = "ffms";
 750             b_auto = 0;
 751             input = ffms_input;
 752         }
 753 #endif
 754 #ifdef LAVF_INPUT
 755         if( (b_auto || !strcasecmp( demuxer, "lavf" )) &&
 756             (!b_regular || !lavf_input.open_file( filename, p_handle, info, opt )) )
 757         {
 758             module = "lavf";
 759             b_auto = 0;
 760             input = lavf_input;
 761         }
 762 #endif
 763 #ifdef AVS_INPUT
 764         if( b_regular && (b_auto || !strcasecmp( demuxer, "avs" )) &&
 765             !avs_input.open_file( filename, p_handle, info, opt ) )
 766         {
 767             module = "avs";
 768             b_auto = 0;
 769             input = avs_input;
 770         }
 771 #endif
 772         if( b_auto && !yuv_input.open_file( filename, p_handle, info, opt ) )
 773         {
 774             module = "yuv";
 775             b_auto = 0;
 776             input = yuv_input;
 777         }
 778
 779         if( !(*p_handle) )
 780         {
 781             fprintf( stderr, "x264 [error]: could not open input file `%s' via any method!\n", filename );
 782             return -1;
 783         }
 784     }
 785     strcpy( used_demuxer, module );
 786
 787     return 0;
 788 }
 789
 790 /*****************************************************************************
 791  * Parse:
 792  *****************************************************************************/
 793 static int Parse( int argc, char **argv, x264_param_t *param, cli_opt_t *opt )
 794 {
 795     char *input_filename = NULL;
 796     const char *demuxer = demuxer_names[0];
 797     char *output_filename = NULL;
 798     const char *muxer = muxer_names[0];
 799     x264_param_t defaults = *param;
 800     char *profile = NULL;
 801     int b_thread_input = 0;
 802     int b_turbo = 1;
 803     int b_pass1 = 0;
 804     int b_user_ref = 0;
 805     int b_user_fps = 0;
 806     int b_user_interlaced = 0;
 807     int i;
 808     cli_input_opt_t input_opt;
 809
 810     memset( opt, 0, sizeof(cli_opt_t) );
 811     memset( &input_opt, 0, sizeof(cli_input_opt_t) );
 812     opt->b_progress = 1;
 813
 814     /* Presets are applied before all other options. */
 815     for( optind = 0;; )
 816     {
 817         int c = getopt_long( argc, argv, short_options, long_options, NULL );
 818         if( c == -1 )
 819             break;
 820
 821         if( c == OPT_PRESET )
 822         {
 823             if( !strcasecmp( optarg, "ultrafast" ) )
 824             {
 825                 param->i_frame_reference = 1;
 826                 param->i_scenecut_threshold = 0;
 827                 param->b_deblocking_filter = 0;
 828                 param->b_cabac = 0;
 829                 param->i_bframe = 0;
 830                 param->analyse.intra = 0;
 831                 param->analyse.inter = 0;
 832                 param->analyse.b_transform_8x8 = 0;
 833                 param->analyse.i_me_method = X264_ME_DIA;
 834                 param->analyse.i_subpel_refine = 0;
 835                 param->rc.i_aq_mode = 0;
 836                 param->analyse.b_mixed_references = 0;
 837                 param->analyse.i_trellis = 0;
 838                 param->i_bframe_adaptive = X264_B_ADAPT_NONE;
 839                 param->rc.b_mb_tree = 0;
 840                 param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
 841             }
 842             else if( !strcasecmp( optarg, "veryfast" ) )
 843             {
 844                 param->analyse.inter = X264_ANALYSE_I8x8|X264_ANALYSE_I4x4;
 845                 param->analyse.i_me_method = X264_ME_DIA;
 846                 param->analyse.i_subpel_refine = 1;
 847                 param->i_frame_reference = 1;
 848                 param->analyse.b_mixed_references = 0;
 849                 param->analyse.i_trellis = 0;
 850                 param->rc.b_mb_tree = 0;
 851                 param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
 852             }
 853             else if( !strcasecmp( optarg, "faster" ) )
 854             {
 855                 param->analyse.b_mixed_references = 0;
 856                 param->i_frame_reference = 2;
 857                 param->analyse.i_subpel_refine = 4;
 858                 param->rc.b_mb_tree = 0;
 859                 param->analyse.i_weighted_pred = X264_WEIGHTP_BLIND;
 860             }
 861             else if( !strcasecmp( optarg, "fast" ) )
 862             {
 863                 param->i_frame_reference = 2;
 864                 param->analyse.i_subpel_refine = 6;
 865                 param->rc.i_lookahead = 30;
 866             }
 867             else if( !strcasecmp( optarg, "medium" ) )
 868             {
 869                 /* Default is medium */
 870             }
 871             else if( !strcasecmp( optarg, "slow" ) )
 872             {
 873                 param->analyse.i_me_method = X264_ME_UMH;
 874                 param->analyse.i_subpel_refine = 8;
 875                 param->i_frame_reference = 5;
 876                 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
 877                 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
 878                 param->rc.i_lookahead = 50;
 879             }
 880             else if( !strcasecmp( optarg, "slower" ) )
 881             {
 882                 param->analyse.i_me_method = X264_ME_UMH;
 883                 param->analyse.i_subpel_refine = 9;
 884                 param->i_frame_reference = 8;
 885                 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
 886                 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
 887                 param->analyse.inter |= X264_ANALYSE_PSUB8x8;
 888                 param->analyse.i_trellis = 2;
 889                 param->rc.i_lookahead = 60;
 890             }
 891             else if( !strcasecmp( optarg, "veryslow" ) )
 892             {
 893                 param->analyse.i_me_method = X264_ME_UMH;
 894                 param->analyse.i_subpel_refine = 10;
 895                 param->analyse.i_me_range = 24;
 896                 param->i_frame_reference = 16;
 897                 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
 898                 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
 899                 param->analyse.inter |= X264_ANALYSE_PSUB8x8;
 900                 param->analyse.i_trellis = 2;
 901                 param->i_bframe = 8;
 902                 param->rc.i_lookahead = 60;
 903             }
 904             else if( !strcasecmp( optarg, "placebo" ) )
 905             {
 906                 param->analyse.i_me_method = X264_ME_TESA;
 907                 param->analyse.i_subpel_refine = 10;
 908                 param->analyse.i_me_range = 24;
 909                 param->i_frame_reference = 16;
 910                 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
 911                 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
 912                 param->analyse.inter |= X264_ANALYSE_PSUB8x8;
 913                 param->analyse.b_fast_pskip = 0;
 914                 param->analyse.i_trellis = 2;
 915                 param->i_bframe = 16;
 916                 param->rc.i_lookahead = 60;
 917                 b_turbo = 0;
 918             }
 919             else
 920             {
 921                 fprintf( stderr, "x264 [error]: invalid preset '%s'\n", optarg );
 922                 return -1;
 923             }
 924         }
 925         else if( c == '?' )
 926             return -1;
 927     }
 928
 929     /* Tunings are applied next. */
 930     for( optind = 0;; )
 931     {
 932         int c = getopt_long( argc, argv, short_options, long_options, NULL );
 933         if( c == -1 )
 934             break;
 935
 936         if( c == OPT_TUNE )
 937         {
 938             if( !strcasecmp( optarg, "film" ) )
 939             {
 940                 param->i_deblocking_filter_alphac0 = -1;
 941                 param->i_deblocking_filter_beta = -1;
 942                 param->analyse.f_psy_trellis = 0.15;
 943             }
 944             else if( !strcasecmp( optarg, "animation" ) )
 945             {
 946                 param->i_frame_reference = param->i_frame_reference > 1 ? param->i_frame_reference*2 : 1;
 947                 param->i_deblocking_filter_alphac0 = 1;
 948                 param->i_deblocking_filter_beta = 1;
 949                 param->analyse.f_psy_rd = 0.4;
 950                 param->rc.f_aq_strength = 0.6;
 951                 param->i_bframe += 2;
 952             }
 953             else if( !strcasecmp( optarg, "grain" ) )
 954             {
 955                 param->i_deblocking_filter_alphac0 = -2;
 956                 param->i_deblocking_filter_beta = -2;
 957                 param->analyse.f_psy_trellis = 0.25;
 958                 param->analyse.b_dct_decimate = 0;
 959                 param->rc.f_pb_factor = 1.1;
 960                 param->rc.f_ip_factor = 1.1;
 961                 param->rc.f_aq_strength = 0.5;
 962                 param->analyse.i_luma_deadzone[0] = 6;
 963                 param->analyse.i_luma_deadzone[1] = 6;
 964                 param->rc.f_qcompress = 0.8;
 965             }
 966             else if( !strcasecmp( optarg, "psnr" ) )
 967             {
 968                 param->rc.i_aq_mode = X264_AQ_NONE;
 969                 param->analyse.b_psy = 0;
 970             }
 971             else if( !strcasecmp( optarg, "ssim" ) )
 972             {
 973                 param->rc.i_aq_mode = X264_AQ_AUTOVARIANCE;
 974                 param->analyse.b_psy = 0;
 975             }
 976             else if( !strcasecmp( optarg, "fastdecode" ) )
 977             {
 978                 param->b_deblocking_filter = 0;
 979                 param->b_cabac = 0;
 980                 param->analyse.b_weighted_bipred = 0;
 981                 param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
 982             }
 983             else if( !strcasecmp( optarg, "zerolatency" ) )
 984             {
 985                 param->rc.i_lookahead = 0;
 986                 param->i_sync_lookahead = 0;
 987                 param->i_bframe = 0;
 988                 param->b_sliced_threads = 1;
 989             }
 990             else if( !strcasecmp( optarg, "touhou" ) )
 991             {
 992                 param->i_frame_reference = param->i_frame_reference > 1 ? param->i_frame_reference*2 : 1;
 993                 param->i_deblocking_filter_alphac0 = -1;
 994                 param->i_deblocking_filter_beta = -1;
 995                 param->analyse.f_psy_trellis = 0.2;
 996                 param->rc.f_aq_strength = 1.3;
 997                 if( param->analyse.inter & X264_ANALYSE_PSUB16x16 )
 998                     param->analyse.inter |= X264_ANALYSE_PSUB8x8;
 999             }
1000             else
1001             {
1002                 fprintf( stderr, "x264 [error]: invalid tune '%s'\n", optarg );
1003                 return -1;
1004             }
1005         }
1006         else if( c == '?' )
1007             return -1;
1008     }
1009
1010     /* Parse command line options */
1011     for( optind = 0;; )
1012     {
1013         int b_error = 0;
1014         int long_options_index = -1;
1015
1016         int c = getopt_long( argc, argv, short_options, long_options, &long_options_index );
1017
1018         if( c == -1 )
1019         {
1020             break;
1021         }
1022
1023         switch( c )
1024         {
1025             case 'h':
1026                 Help( &defaults, 0 );
1027                 exit(0);
1028             case OPT_LONGHELP:
1029                 Help( &defaults, 1 );
1030                 exit(0);
1031             case OPT_FULLHELP:
1032                 Help( &defaults, 2 );
1033                 exit(0);
1034             case 'V':
1035 #ifdef X264_POINTVER
1036                 printf( "x264 "X264_POINTVER"\n" );
1037 #else
1038                 printf( "x264 0.%d.X\n", X264_BUILD );
1039 #endif
1040                 printf( "built on " __DATE__ ", " );
1041 #ifdef __GNUC__
1042                 printf( "gcc: " __VERSION__ "\n" );
1043 #else
1044                 printf( "using a non-gcc compiler\n" );
1045 #endif
1046                 exit(0);
1047             case OPT_FRAMES:
1048                 param->i_frame_total = X264_MAX( atoi( optarg ), 0 );
1049                 break;
1050             case OPT_SEEK:
1051                 opt->i_seek = input_opt.seek = X264_MAX( atoi( optarg ), 0 );
1052                 break;
1053             case 'o':
1054                 output_filename = optarg;
1055                 break;
1056             case OPT_MUXER:
1057                 for( i = 0; muxer_names[i] && strcasecmp( muxer_names[i], optarg ); )
1058                     i++;
1059                 if( !muxer_names[i] )
1060                 {
1061                     fprintf( stderr, "x264 [error]: invalid muxer '%s'\n", optarg );
1062                     return -1;
1063                 }
1064                 muxer = optarg;
1065                 break;
1066             case OPT_DEMUXER:
1067                 for( i = 0; demuxer_names[i] && strcasecmp( demuxer_names[i], optarg ); )
1068                     i++;
1069                 if( !demuxer_names[i] )
1070                 {
1071                     fprintf( stderr, "x264 [error]: invalid demuxer '%s'\n", optarg );
1072                     return -1;
1073                 }
1074                 demuxer = optarg;
1075                 break;
1076             case OPT_INDEX:
1077                 input_opt.index = optarg;
1078                 break;
1079             case OPT_QPFILE:
1080                 opt->qpfile = fopen( optarg, "rb" );
1081                 if( !opt->qpfile )
1082                 {
1083                     fprintf( stderr, "x264 [error]: can't open qpfile `%s'\n", optarg );
1084                     return -1;
1085                 }
1086                 else if( !x264_is_regular_file( opt->qpfile ) )
1087                 {
1088                     fprintf( stderr, "x264 [error]: qpfile incompatible with non-regular file `%s'\n", optarg );
1089                     fclose( opt->qpfile );
1090                     return -1;
1091                 }
1092                 break;
1093             case OPT_THREAD_INPUT:
1094                 b_thread_input = 1;
1095                 break;
1096             case OPT_QUIET:
1097                 param->i_log_level = X264_LOG_NONE;
1098                 break;
1099             case 'v':
1100                 param->i_log_level = X264_LOG_DEBUG;
1101                 break;
1102             case OPT_NOPROGRESS:
1103                 opt->b_progress = 0;
1104                 break;
1105             case OPT_VISUALIZE:
1106 #ifdef VISUALIZE
1107                 param->b_visualize = 1;
1108                 b_exit_on_ctrl_c = 1;
1109 #else
1110                 fprintf( stderr, "x264 [warning]: not compiled with visualization support\n" );
1111 #endif
1112                 break;
1113             case OPT_TUNE:
1114             case OPT_PRESET:
1115                 break;
1116             case OPT_PROFILE:
1117                 profile = optarg;
1118                 break;
1119             case OPT_SLOWFIRSTPASS:
1120                 b_turbo = 0;
1121                 break;
1122             case 'r':
1123                 b_user_ref = 1;
1124                 goto generic_option;
1125             case 'p':
1126                 b_pass1 = atoi( optarg ) == 1;
1127                 goto generic_option;
1128             case OPT_FPS:
1129                 b_user_fps = 1;
1130                 goto generic_option;
1131             case OPT_INTERLACED:
1132                 b_user_interlaced = 1;
1133                 goto generic_option;
1134             default:
1135 generic_option:
1136             {
1137                 int i;
1138                 if( long_options_index < 0 )
1139                 {
1140                     for( i = 0; long_options[i].name; i++ )
1141                         if( long_options[i].val == c )
1142                         {
1143                             long_options_index = i;
1144                             break;
1145                         }
1146                     if( long_options_index < 0 )
1147                     {
1148                         /* getopt_long already printed an error message */
1149                         return -1;
1150                     }
1151                 }
1152
1153                 b_error |= x264_param_parse( param, long_options[long_options_index].name, optarg );
1154             }
1155         }
1156
1157         if( b_error )
1158         {
1159             const char *name = long_options_index > 0 ? long_options[long_options_index].name : argv[optind-2];
1160             fprintf( stderr, "x264 [error]: invalid argument: %s = %s\n", name, optarg );
1161             return -1;
1162         }
1163     }
1164
1165     /* Set faster options in case of turbo firstpass. */
1166     if( b_turbo && b_pass1 )
1167     {
1168         param->i_frame_reference = 1;
1169         param->analyse.b_transform_8x8 = 0;
1170         param->analyse.inter = 0;
1171         param->analyse.i_me_method = X264_ME_DIA;
1172         param->analyse.i_subpel_refine = X264_MIN( 2, param->analyse.i_subpel_refine );
1173         param->analyse.i_trellis = 0;
1174     }
1175
1176     /* Apply profile restrictions. */
1177     if( profile )
1178     {
1179         if( !strcasecmp( profile, "baseline" ) )
1180         {
1181             param->analyse.b_transform_8x8 = 0;
1182             param->b_cabac = 0;
1183             param->i_cqm_preset = X264_CQM_FLAT;
1184             param->i_bframe = 0;
1185             param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
1186             if( param->b_interlaced )
1187             {
1188                 fprintf( stderr, "x264 [error]: baseline profile doesn't support interlacing\n" );
1189                 return -1;
1190             }
1191         }
1192         else if( !strcasecmp( profile, "main" ) )
1193         {
1194             param->analyse.b_transform_8x8 = 0;
1195             param->i_cqm_preset = X264_CQM_FLAT;
1196         }
1197         else if( !strcasecmp( profile, "high" ) )
1198         {
1199             /* Default */
1200         }
1201         else
1202         {
1203             fprintf( stderr, "x264 [error]: invalid profile: %s\n", profile );
1204             return -1;
1205         }
1206         if( (param->rc.i_rc_method == X264_RC_CQP && param->rc.i_qp_constant == 0) ||
1207             (param->rc.i_rc_method == X264_RC_CRF && param->rc.f_rf_constant == 0) )
1208         {
1209             fprintf( stderr, "x264 [error]: %s profile doesn't support lossless\n", profile );
1210             return -1;
1211         }
1212     }
1213
1214     /* Get the file name */
1215     if( optind > argc - 1 || !output_filename )
1216     {
1217         fprintf( stderr, "x264 [error]: No %s file. Run x264 --help for a list of options.\n",
1218                  optind > argc - 1 ? "input" : "output" );
1219         return -1;
1220     }
1221
1222     if( select_output( muxer, output_filename, param ) )
1223         return -1;
1224     if( output.open_file( output_filename, &opt->hout ) )
1225     {
1226         fprintf( stderr, "x264 [error]: could not open output file `%s'\n", output_filename );
1227         return -1;
1228     }
1229
1230     input_filename = argv[optind++];
1231     input_opt.resolution = optind < argc ? argv[optind++] : NULL;
1232     video_info_t info = {0};
1233     char demuxername[5];
1234
1235     /* set info flags to param flags to be overwritten by demuxer as necessary. */
1236     info.csp        = param->i_csp;
1237     info.fps_num    = param->i_fps_num;
1238     info.fps_den    = param->i_fps_den;
1239     info.interlaced = param->b_interlaced;
1240     info.sar_width  = param->vui.i_sar_width;
1241     info.sar_height = param->vui.i_sar_height;
1242     info.vfr        = param->b_vfr_input;
1243
1244     if( select_input( demuxer, demuxername, input_filename, &opt->hin, &info, &input_opt ) )
1245         return -1;
1246
1247     if( !opt->hin && input.open_file( input_filename, &opt->hin, &info, &input_opt ) )
1248     {
1249         fprintf( stderr, "x264 [error]: could not open input file `%s'\n", input_filename );
1250         return -1;
1251     }
1252
1253     x264_reduce_fraction( &info.sar_width, &info.sar_height );
1254     x264_reduce_fraction( &info.fps_num, &info.fps_den );
1255     if( param->i_log_level >= X264_LOG_INFO )
1256         fprintf( stderr, "%s [info]: %dx%d%c %d:%d @ %d/%d fps (%cfr)\n", demuxername, info.width,
1257                  info.height, info.interlaced ? 'i' : 'p', info.sar_width, info.sar_height,
1258                  info.fps_num, info.fps_den, info.vfr ? 'v' : 'c' );
1259
1260     /* set param flags from the info flags as necessary */
1261     param->i_csp       = info.csp;
1262     param->i_height    = info.height;
1263     param->b_vfr_input = info.vfr;
1264     param->i_width     = info.width;
1265     if( !b_user_interlaced && info.interlaced )
1266     {
1267         fprintf( stderr, "x264 [warning]: input appears to be interlaced, enabling interlaced mode.\n"
1268                          "                If you want otherwise, use --no-interlaced\n" );
1269         param->b_interlaced = 1;
1270     }
1271     if( !b_user_fps )
1272     {
1273         param->i_fps_num = info.fps_num;
1274         param->i_fps_den = info.fps_den;
1275     }
1276     if( param->b_vfr_input )
1277     {
1278         param->i_timebase_num = info.timebase_num;
1279         param->i_timebase_den = info.timebase_den;
1280     }
1281     else
1282     {
1283         param->i_timebase_den = param->i_fps_num;
1284         param->i_timebase_num = param->i_fps_den;
1285     }
1286     if( !param->vui.i_sar_width || !param->vui.i_sar_height )
1287     {
1288         param->vui.i_sar_width  = info.sar_width;
1289         param->vui.i_sar_height = info.sar_height;
1290     }
1291
1292 #ifdef HAVE_PTHREAD
1293     if( b_thread_input || param->i_threads > 1
1294         || (param->i_threads == X264_THREADS_AUTO && x264_cpu_num_processors() > 1) )
1295     {
1296         if( thread_input.open_file( NULL, &opt->hin, &info, NULL ) )
1297         {
1298             fprintf( stderr, "x264 [error]: threaded input failed\n" );
1299             return -1;
1300         }
1301         else
1302             input = thread_input;
1303     }
1304 #endif
1305
1306
1307     /* Automatically reduce reference frame count to match the user's target level
1308      * if the user didn't explicitly set a reference frame count. */
1309     if( !b_user_ref )
1310     {
1311         int mbs = (((param->i_width)+15)>>4) * (((param->i_height)+15)>>4);
1312         int i;
1313         for( i = 0; x264_levels[i].level_idc != 0; i++ )
1314             if( param->i_level_idc == x264_levels[i].level_idc )
1315             {
1316                 while( mbs * 384 * param->i_frame_reference > x264_levels[i].dpb
1317                        && param->i_frame_reference > 1 )
1318                 {
1319                     param->i_frame_reference--;
1320                 }
1321                 break;
1322             }
1323     }
1324
1325
1326     return 0;
1327 }
1328
1329 static void parse_qpfile( cli_opt_t *opt, x264_picture_t *pic, int i_frame )
1330 {
1331     int num = -1, qp, ret;
1332     char type;
1333     uint64_t file_pos;
1334     while( num < i_frame )
1335     {
1336         file_pos = ftell( opt->qpfile );
1337         ret = fscanf( opt->qpfile, "%d %c %d\n", &num, &type, &qp );
1338         if( num > i_frame || ret == EOF )
1339         {
1340             pic->i_type = X264_TYPE_AUTO;
1341             pic->i_qpplus1 = 0;
1342             fseek( opt->qpfile, file_pos, SEEK_SET );
1343             break;
1344         }
1345         if( num < i_frame && ret == 3 )
1346             continue;
1347         pic->i_qpplus1 = qp+1;
1348         if     ( type == 'I' ) pic->i_type = X264_TYPE_IDR;
1349         else if( type == 'i' ) pic->i_type = X264_TYPE_I;
1350         else if( type == 'P' ) pic->i_type = X264_TYPE_P;
1351         else if( type == 'B' ) pic->i_type = X264_TYPE_BREF;
1352         else if( type == 'b' ) pic->i_type = X264_TYPE_B;
1353         else ret = 0;
1354         if( ret != 3 || qp < -1 || qp > 51 )
1355         {
1356             fprintf( stderr, "x264 [error]: can't parse qpfile for frame %d\n", i_frame );
1357             fclose( opt->qpfile );
1358             opt->qpfile = NULL;
1359             pic->i_type = X264_TYPE_AUTO;
1360             pic->i_qpplus1 = 0;
1361             break;
1362         }
1363     }
1364 }
1365
1366 /*****************************************************************************
1367  * Encode:
1368  *****************************************************************************/
1369
1370 static int  Encode_frame( x264_t *h, hnd_t hout, x264_picture_t *pic, int64_t *last_pts )
1371 {
1372     x264_picture_t pic_out;
1373     x264_nal_t *nal;
1374     int i_nal;
1375     int i_frame_size = 0;
1376
1377     i_frame_size = x264_encoder_encode( h, &nal, &i_nal, pic, &pic_out );
1378
1379     if( i_frame_size < 0 )
1380     {
1381         fprintf( stderr, "x264 [error]: x264_encoder_encode failed\n" );
1382         return -1;
1383     }
1384
1385     if( i_frame_size )
1386     {
1387         i_frame_size = output.write_frame( hout, nal[0].p_payload, i_frame_size, &pic_out );
1388         *last_pts = pic_out.i_pts;
1389     }
1390
1391     return i_frame_size;
1392 }
1393
1394 static void Print_status( int64_t i_start, int i_frame, int i_frame_total, int64_t i_file, x264_param_t *param, int64_t last_pts )
1395 {
1396     char    buf[200];
1397     int64_t i_elapsed = x264_mdate() - i_start;
1398     double fps = i_elapsed > 0 ? i_frame * 1000000. / i_elapsed : 0;
1399     double bitrate = (double) i_file * 8 / ( (double) last_pts * 1000 * param->i_timebase_num / param->i_timebase_den );
1400     if( i_frame_total )
1401     {
1402         int eta = i_elapsed * (i_frame_total - i_frame) / ((int64_t)i_frame * 1000000);
1403         sprintf( buf, "x264 [%.1f%%] %d/%d frames, %.2f fps, %.2f kb/s, eta %d:%02d:%02d",
1404                  100. * i_frame / i_frame_total, i_frame, i_frame_total, fps, bitrate,
1405                  eta/3600, (eta/60)%60, eta%60 );
1406     }
1407     else
1408     {
1409         sprintf( buf, "x264 %d frames: %.2f fps, %.2f kb/s", i_frame, fps, bitrate );
1410     }
1411     fprintf( stderr, "%s  \r", buf+5 );
1412     SetConsoleTitle( buf );
1413     fflush( stderr ); // needed in windows
1414 }
1415
1416 static int  Encode( x264_param_t *param, cli_opt_t *opt )
1417 {
1418     x264_t *h;
1419     x264_picture_t pic;
1420
1421     int     i_frame, i_frame_total, i_frame_output;
1422     int64_t i_start, i_end;
1423     int64_t i_file = 0;
1424     int     i_frame_size;
1425     int     i_update_interval;
1426     int64_t last_pts = 0;
1427 #   define  MAX_PTS_WARNING 3 /* arbitrary */
1428     int     pts_warning_cnt = 0;
1429     int64_t largest_pts = -1;
1430     int64_t second_largest_pts = -1;
1431     int64_t ticks_per_frame;
1432     double  duration;
1433
1434     opt->b_progress &= param->i_log_level < X264_LOG_DEBUG;
1435     i_frame_total = input.get_frame_total( opt->hin );
1436     i_frame_total = X264_MAX( i_frame_total - opt->i_seek, 0 );
1437     if( ( i_frame_total == 0 || param->i_frame_total < i_frame_total )
1438         && param->i_frame_total > 0 )
1439         i_frame_total = param->i_frame_total;
1440     param->i_frame_total = i_frame_total;
1441     i_update_interval = i_frame_total ? x264_clip3( i_frame_total / 1000, 1, 10 ) : 10;
1442
1443     if( ( h = x264_encoder_open( param ) ) == NULL )
1444     {
1445         fprintf( stderr, "x264 [error]: x264_encoder_open failed\n" );
1446         input.close_file( opt->hin );
1447         return -1;
1448     }
1449
1450     if( output.set_param( opt->hout, param ) )
1451     {
1452         fprintf( stderr, "x264 [error]: can't set outfile param\n" );
1453         input.close_file( opt->hin );
1454         output.close_file( opt->hout, largest_pts, second_largest_pts );
1455         return -1;
1456     }
1457
1458     /* Create a new pic */
1459     if( input.picture_alloc( &pic, param->i_csp, param->i_width, param->i_height ) )
1460     {
1461         fprintf( stderr, "x264 [error]: malloc failed\n" );
1462         return -1;
1463     }
1464
1465     i_start = x264_mdate();
1466     /* ticks/frame = ticks/second / frames/second */
1467     ticks_per_frame = (int64_t)h->param.i_timebase_den * h->param.i_fps_den / h->param.i_timebase_num / h->param.i_fps_num;
1468     if( ticks_per_frame < 1 )
1469     {
1470         fprintf( stderr, "x264 [error]: ticks_per_frame invalid: %"PRId64"\n", ticks_per_frame );
1471         return -1;
1472     }
1473
1474     if( !h->param.b_repeat_headers )
1475     {
1476         // Write SPS/PPS/SEI
1477         x264_nal_t *headers;
1478         int i_nal;
1479
1480         if( x264_encoder_headers( h, &headers, &i_nal ) < 0 )
1481         {
1482             fprintf( stderr, "x264 [error]: x264_encoder_headers failed\n" );
1483             return -1;
1484         }
1485
1486         if( (i_file = output.write_headers( opt->hout, headers )) < 0 )
1487             return -1;
1488     }
1489
1490     /* Encode frames */
1491     for( i_frame = 0, i_frame_output = 0; b_ctrl_c == 0 && (i_frame < i_frame_total || i_frame_total == 0); )
1492     {
1493         if( input.read_frame( &pic, opt->hin, i_frame + opt->i_seek ) )
1494             break;
1495
1496         if( !param->b_vfr_input )
1497             pic.i_pts = i_frame;
1498         if( pic.i_pts <= largest_pts )
1499         {
1500             if( h->param.i_log_level >= X264_LOG_WARNING )
1501             {
1502                 if( h->param.i_log_level >= X264_LOG_DEBUG || pts_warning_cnt < MAX_PTS_WARNING )
1503                     fprintf( stderr, "x264 [warning]: non-strictly-monotonic pts at frame %d (%"PRId64" <= %"PRId64")\n",
1504                              i_frame, pic.i_pts, largest_pts );
1505                 else if( pts_warning_cnt == MAX_PTS_WARNING )
1506                     fprintf( stderr, "x264 [warning]: too many nonmonotonic pts warnings, suppressing further ones\n" );
1507                 pts_warning_cnt++;
1508             }
1509             pic.i_pts = largest_pts + ticks_per_frame;
1510         }
1511         second_largest_pts = largest_pts;
1512         largest_pts = pic.i_pts;
1513
1514         if( opt->qpfile )
1515             parse_qpfile( opt, &pic, i_frame + opt->i_seek );
1516         else
1517         {
1518             /* Do not force any parameters */
1519             pic.i_type = X264_TYPE_AUTO;
1520             pic.i_qpplus1 = 0;
1521         }
1522
1523         i_frame_size = Encode_frame( h, opt->hout, &pic, &last_pts );
1524         if( i_frame_size < 0 )
1525             return -1;
1526         i_file += i_frame_size;
1527         if( i_frame_size )
1528             i_frame_output++;
1529
1530         i_frame++;
1531
1532         if( input.release_frame && input.release_frame( &pic, opt->hin ) )
1533             break;
1534
1535         /* update status line (up to 1000 times per input file) */
1536         if( opt->b_progress && i_frame_output % i_update_interval == 0 && i_frame_output )
1537             Print_status( i_start, i_frame_output, i_frame_total, i_file, param, last_pts );
1538     }
1539     /* Flush delayed frames */
1540     while( !b_ctrl_c && x264_encoder_delayed_frames( h ) )
1541     {
1542         i_frame_size = Encode_frame( h, opt->hout, NULL, &last_pts );
1543         if( i_frame_size < 0 )
1544             return -1;
1545         i_file += i_frame_size;
1546         if( i_frame_size )
1547             i_frame_output++;
1548         if( opt->b_progress && i_frame_output % i_update_interval == 0 && i_frame_output )
1549             Print_status( i_start, i_frame_output, i_frame_total, i_file, param, last_pts );
1550     }
1551     if( pts_warning_cnt >= MAX_PTS_WARNING && h->param.i_log_level < X264_LOG_DEBUG )
1552         fprintf( stderr, "x264 [warning]: %d suppressed nonmonotonic pts warnings\n", pts_warning_cnt-MAX_PTS_WARNING );
1553
1554     /* duration algorithm fails when only 1 frame is output */
1555     if( i_frame_output == 1 )
1556         duration = (double)param->i_fps_den / param->i_fps_num;
1557     else
1558         duration = (double)(2 * largest_pts - second_largest_pts) * param->i_timebase_num / param->i_timebase_den;
1559
1560     i_end = x264_mdate();
1561     input.picture_clean( &pic );
1562     /* Erase progress indicator before printing encoding stats. */
1563     if( opt->b_progress )
1564         fprintf( stderr, "                                                                               \r" );
1565     x264_encoder_close( h );
1566     fprintf( stderr, "\n" );
1567
1568     if( b_ctrl_c )
1569         fprintf( stderr, "aborted at input frame %d, output frame %d\n", opt->i_seek + i_frame, i_frame_output );
1570
1571     input.close_file( opt->hin );
1572     output.close_file( opt->hout, largest_pts, second_largest_pts );
1573
1574     if( i_frame_output > 0 )
1575     {
1576         double fps = (double)i_frame_output * (double)1000000 /
1577                      (double)( i_end - i_start );
1578
1579         fprintf( stderr, "encoded %d frames, %.2f fps, %.2f kb/s\n", i_frame_output, fps,
1580                  (double) i_file * 8 / ( 1000 * duration ) );
1581     }
1582
1583     return 0;
1584 }