#!/bin/bash

if [[ "$1" = "-h" ]]; then
  echo "View multiple videos together. Maximum three files."
  exit
fi


. qolop &> /dev/null
_qCol export &> /dev/null

echo -e "${_cW}${_cU}# MPV shortcuts
${_cZ}${_cG}
Modifiers: c = CTRL

| Key    | Playback                   | | Key    | Audio                 |
|:-------|:---------------------------| |:-------|:----------------------|
| p      | Pause                      | | m      | Mute                  |
| s      | Screenshot                 | | 9/0    | Modify volume         |
| S      | Screenshot without subs    | | c-+/-  | Change audio delay    |
| Q      | Quit saving position       | | #      | Change audio track    |
| ,/.    | Seek frame                 |
| <-/->  | Seek 5 seconds             | | Key    | Subtitles             |
| up/dn  | Seek 60 seconds            | |:-------|:----------------------|
| < / >  | Prev/Next file             | | v      | Subtitle toggle       |
| [/]    | Change speed               | | j/J    | Change subtitle       |
| o      | Show progress              | | z/x    | Change subtitle delay |
| O      | Progress toggle            | | r/t    | Subtitles up / down   |

| Key    | Video                      |
|:-------|:---------------------------|
| f      | Fullscreen                 |
| T      | Toggle video on top        |
| A      | Cycle aspect ratio         |
| 1/2    | Modify contrast            |
| 3/4    | Modify brightness          |
| 5/6    | Modify gamma               |
| 7/8    | Modify saturation          |
| w/e    | Zoom in / out (fullscreen) |

${_cZ}"

if [[ -z "$3" ]]; then
  mpv \
   --lavfi-complex="[vid1][vid2]hstack[vo]" \
   "$1" --external-file="$2"
else

  mpv \
  --lavfi-complex="[vid1][vid2][vid3]hstack=inputs=3[vo]" \
  "$1" --external-files="$2:$3"

fi