Debian LITE Smooth Slide Show

Question

I'm interested in utilizing my Raspberry Pi 3 for advertising purposes. I'd like to create a slideshow that can display both videos and images, and I want to be able to iterate through all the media files located in a specific folder, as I have limited control over the network and need to retrieve these files from a cloud source.

I currently have a code snippet that uses fbiand vlc to achieve this, but I'm facing an issue where the command-line briefly appears after each image transition. After video there is no such problem.

I've managed to mitigate this issue with the clear command, but it's still bothering me. I'm wondering if anyone has suggestions for a smoother way to accomplish this without the command-line interruptions.

Here my codesnipped:

#!/bin/bash

# Define the directory where your images are stored
MEDIA_FOLDER="/home/pi/slide_show/test"

# Create an array of media files
media_files=("$MEDIA_FOLDER"/*.{jpg,jpeg,png,gif,mp4})

clear
setterm -cursor off

# Iterate through media files and display them
while true; do
    for media_file in "${media_files[@]}"; do
        if [[ -f "$media_file" ]]; then
            if [[ "$media_file" == *.mp4 ]]; then
                vlc -f --one-instance --no-xlib -I dummy "$media_file" vlc://quit >/dev/null 2>&1
            else
                clear
                fbi -a -b -u -noverbose -1 -t 5 "$media_file" >/dev/null 2>&1
                clear
            fi
        fi
    done
done

UPDATE:

So I now have at least a smooth way for images. When switching between image and video there is still a short amount of time a black screen.

DISPLAYTIME=10
MEDIA_FOLDER=""

# Function to kill display processes
killer() {
    sudo pkill -9 -x "fbi"
    sudo pkill -x "mpv"
    sleep 2
}

# Function to display images and videos in terminal
display() {
    local image_files="$1"
    local video_files="$2"
    killer

    if [[ -n "$image_files" && -n "$video_files" ]]; then
        while true; do
            sudo fbi -a -r 5 -t $DISPLAYTIME -T 1 --noverbose -1 $image_files >/dev/null 2>&1 &
            disown
            sleep $((IMAGE_FILES_COUNT * DISPLAYTIME))
            pkill -9 -x "fbi" >/dev/null 2>/dev/null &
            mpv --fs --cache-secs=10 --fs-screen=1 "$video_files" >/dev/null 2>&1
            clear
        done
    elif [ -n "$image_files" ]; then
        clear
        sudo fbi -a -r 5 -t $DISPLAYTIME -T 1 --noverbose $image_files >/dev/null 2>&1
    elif [ -n "$video_files" ]; then
        clear
        mpv --fs --cache-secs=10 --loop=inf --fs-screen=1 "$video_files" >/dev/null 2>&1
    fi
}

# Function to handle the main display logic
handle_display() {
    local image_files=$(find "$MEDIA_FOLDER" -type f \( -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.png" -o -iname "*.gif" \))
    local video_files=$(find "$MEDIA_FOLDER" -type f \( -iname "*.mp4" -o -iname "*.mkv" -o -iname "*.avi" -o -iname "*.ogg" -o -iname "*.mov" \))
    display "$image_files" "$video_files"
}

# Function to handle the main loop
main_loop() {
    while true; do
        sudo kill "$DISPLAYPID"
        sleep 2
        killer
        if [ -d "$MEDIA_FOLDER" ] && [ "$(ls -A "$MEDIA_FOLDER")" ]; then
            handle_display &
            DISPLAYPID=$!
        else
            killer
            clear
        fi
        sleep 10
    done
}