x264 0.148.2795 aaa9aa8 (libswscale 4.2.100) (libavformat 57.56.101) (ffmpegsource 2.23.0.0) built on Jun 28 2017, gcc: 6.3.0 20170628 x264 configuration: --bit-depth=8 --chroma-format=all libx264 configuration: --bit-depth=8 --chroma-format=all x264 license: GPL version 2 or later libswscale/libavformat/ffmpegsource license: GPL version 2 or later

x264 core:148 r2795 aaa9aa8 Syntax: x264 [options] -o outfile infile Infile can be raw (in which case resolution is required), or YUV4MPEG (*.y4m), or Avisynth if compiled with support (yes). or libav* formats if compiled with lavf support (yes) or ffms support (yes). Outfile type is selected by filename: .264 -> Raw bytestream .mkv -> Matroska .flv -> Flash Video .mp4 -> MP4 if compiled with GPAC or L-SMASH support (gpac) Output bit depth: 8 (configured at compile time) Options: -h, --help List basic options --longhelp List more options --fullhelp List all options Example usage: Constant quality mode: x264 --crf 24 -o <output> <input> Two-pass with a bitrate of 1000kbps: x264 --pass 1 --bitrate 1000 -o <output> <input> x264 --pass 2 --bitrate 1000 -o <output> <input> Lossless: x264 --qp 0 -o <output> <input> Maximum PSNR at the cost of speed and visual quality: x264 --preset placebo --tune psnr -o <output> <input> Constant bitrate at 1000kbps with a 2 second-buffer: x264 --vbv-bufsize 2000 --bitrate 1000 -o <output> <input> Presets: --profile <string> Force the limits of an H.264 profile Overrides all settings. - baseline,main,high,high10,high422,high444 --preset <string> Use a preset to select encoding settings [medium] Overridden by user settings. - ultrafast,superfast,veryfast,faster,fast - medium,slow,slower,veryslow,placebo --tune <string> Tune the settings for a particular type of source or situation Overridden by user settings. Multiple tunings are separated by commas. Only one psy tuning can be used at a time. - psy tunings: film,animation,grain, stillimage,psnr,ssim - other tunings: fastdecode,zerolatency Frame-type options: -I, --keyint <integer or "infinite"> Maximum GOP size [250] --tff Enable interlaced mode (top field first) --bff Enable interlaced mode (bottom field first) --pulldown <string> Use soft pulldown to change frame rate - none, 22, 32, 64, double, triple, euro (requires cfr input) Ratecontrol: -B, --bitrate <integer> Set bitrate (kbit/s) --crf <float> Quality-based VBR (0-51) [23.0] --vbv-maxrate <integer> Max local bitrate (kbit/s) [0] --vbv-bufsize <integer> Set size of the VBV buffer (kbit) [0] -p, --pass <integer> Enable multipass ratecontrol - 1: First pass, creates stats file - 2: Last pass, does not overwrite stats file Input/Output: -o, --output <string> Specify output file --sar width:height Specify Sample Aspect Ratio --fps <float|rational> Specify framerate --seek <integer> First frame to encode --frames <integer> Maximum number of frames to encode --level <string> Specify level (as defined by Annex A) --quiet Quiet Mode Filtering: --vf, --video-filter <filter0>/<filter1>/... Apply video filtering to the input file Filter options may be specified in <filter>:<option>=<value> format. Available filters: crop:left,top,right,bottom resize:[width,height][,sar][,fittobox][,csp][,method] select_every:step,offset1[,...]