• Description
• Features
• Installation
  • From source (recommended)
  • Binary
  • Packages
  • MacOS
  • Arch Linux
  • NetBSD
• Usage
  • Examples
  • iTerm note
  • Aspect Ratio
  • Command line options

Description

A small command-line application to view images from the terminal written in Rust. It is basically the front-end of viuer. It uses either iTerm or Kitty graphics protocol, if supported. If not, lower half blocks (▄ or \u2584) are displayed instead.

Based on the value of $TERM, viuer decides which protocol to use. For half blocks, $COLORTERM is inspected. If it contains either truecolor or 24bit, truecolor (16 million colors) will be used. If not, it will fallback to using only ansi256. A nice explanation can be found in this gist.

Features

• Native iTerm and Kitty support
• Animated GIF support
• Accept media through stdin
• Custom dimensions
• Transparency

Installation

From source (recommended)

Installation from source requires a local Rust environment.

```bash git clone https://github.com/atanunq/viu.git

Build & Install

cd viu/ cargo install --path .

Use

viu img/giphy.gif Or without cloning: bash cargo install viu ```

Binary

A precompiled binary can be downloaded from the release page. GPG fingerprint is B195BADA40BEF20E4907A5AC628280A0217A7B0F.

Packages

MacOS

Available in brew. bash brew install viu

Arch Linux

Available in community/viu. bash pacman -S viu

NetBSD

Available in graphics/viu.

Usage

Examples

On a Kitty terminal:

On a Mac with iTerm:

Using half blocks (Kitty protocol and tmux do not get along):

Ctrl-C was pressed to stop the GIFs.

When viu receives only one file and it is GIF, it will be displayed over and over until Ctrl-C is pressed. However, when couple of files are up for display the GIF will be displayed only once.

iTerm note

iTerm can handle GIFs by itself with better performance, but configuration through --once and --frame-rate will have no effect there.

Aspect Ratio

If no flags are supplied to viu it will try to get the size of the terminal where it was invoked. If it succeeds it will fit the image and preserve the aspect ratio. The aspect ratio will be changed only if both options -w and -h are used together.

Command line options

``` USAGE: viu [FLAGS] [OPTIONS] [FILE]... When FILE is -, read standard input.

FLAGS: -b, --blocks Force block output -m, --mirror Display a mirror of the original image -n, --name Output the name of the file before displaying -1, --once Only loop once through the animation -r, --recursive Recurse down directories if passed one -s, --static Show only first frame of gif -t, --transparent Display transparent image with transparent background

OPTIONS: -f, --frame-rate Play gif at the given frame rate -h, --height Resize the image to a provided height -w, --width Resize the image to a provided width

ARGS: ... The image to be displayed ```