Man page - ffx264(1)

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Manual

ffx264(1) General Commands Manual ffx264(1)

ffx264

ffx264 [-m <mode>] [-p <preset>] [-t <tune>] [-b|-v|-e|-r|-h] [-c <preset/config file>]

ffx264 is a small yet quite capable shell script for encoding to the H.264/AVC video format. It uses the FFmpeg encoder and the libx264 library. ffx264 supports a wide range of options for video encoding coupled with support for encoding multiple audio tracks and copying multiple subtitles. ffx264 only supports as input video files so it is not possible to encode directly from a DVD/BD drive or an ISO image.

The script uses a configuration file stored in $HOME/.ffx264 where the user can set things up. ffx264 is interactive in nature but the user can pass through it in under a few minutes.

- FFmpeg with libx264 support
- FFprobe (part of FFmpeg)
- MPlayer (for crop preview only)
- MP4Box from GPAC (for mp4/m4v/mov cover art only)
- bc

Specify a pass mode. If this option is not used, the script defaults to crf mode. Valid pass modes are:
1p (1-pass mode)
2p (2-pass mode)
3p (3-pass mode)
crf (constant rate factor mode)
Activate batch encoding mode. This mode is used to encode directories with video files in them.
Load a custom preset file. The package includes an example preset file. This option can also be used to load a custom configuration file instead of a preset.
Use a built-in x264 preset. You can choose from the following:
ultrafast
superfast
veryfast
faster
fast
medium
slow
slower
veryslow
placebo
script (built-in script preset optimized for quality)
Use a built-in x264 tune profile. You can choose from the following:
film
animation
grain
stillimage
psnr
fastdecode
zerolatency
Edit the configuration file.
Reset the configuration file to its defaults.
Display version and exit.
Display internal help menu and exit.

ffmpeg (1)

ffx264 was written by Grozdan Nikolov <microchip8@proton.me>

Please send all bug reports and/or questions/suggestions/donations to <microchip8@proton.me>

https://ffx264.teambelgium.net

June 4, 2025