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7290e7dca8
5 changed files with 1 additions and 239 deletions
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.gitignore
vendored
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.gitignore
vendored
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archives/
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previews/
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# Autoshare
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An upcoming project. This will be a single program that fully automates the content sharing process (packing content into archives, creating previews, uploading archives and previews, and creating a post template ready to be copied and pasted).
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An upcoming project. This will be a single program that fully automates the content sharing process (packing content into archives, creating previews, uploading archives and previews, and creating a post template ready to be copied and pasted.
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It will be written in a mixture of Bash and Python. Tails and Whonix will be supported, with the goal of making the program work natively in Tails without the need to install additional software.
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Anyone is welcome to collaborate with me.
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## Collaborators
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Currently it is not possible to submit pull requests when using the Tor Browser on the Safest setting. Please do not fork this repo attempting to submit a pull request. Instead leave a comment in [this thread](http://onion.tor.my/PedoDeveloper/autoshare/issues/7) and you will be added as a collaborator
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#!/bin/bash
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# Common utility functions shared across multiple files.
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RESET="\033[0m"
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GREEN="\033[1;32m"
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YELLOW="\033[1;33m"
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RED="\033[1;31m"
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check_dependencies() {
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# Usage: check_dependencies "7z" "unrar" "curl" ...
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local dependencies=()
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local dependency
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for dependency in "$@"; do
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if ! command -v "$dependency" >/dev/null; then
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dependencies+=("$dependency")
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fi
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done
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if (( "${#dependencies[@]}" > 0 )); then
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log "ERROR" "Missing dependencies" "${dependencies[@]}"
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return 1
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fi
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}
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log() {
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# Usage: log "NOTICE|WARN|ERROR" "this is a log message" ...
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local caller="${0##*/}"
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local level="$1"; shift
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local color
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case "$level" in
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NOTICE) color="$GREEN" ;;
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WARN) color="$YELLOW" ;;
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ERROR) color="$RED" ;;
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# No color for these levels.
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INFO) color="" ;;
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*) color="" ;;
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esac
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echo -e "$caller: ${color}[$level]: $*${RESET}" >&2
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}
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#!/bin/bash
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# This script packs a file or directory into a 7z archive with the given password.
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# It can (optionally) split the archives into volumes of a fixed size in megabytes.
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source "$(dirname "$0")/../includes/functions.sh"
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set -euo pipefail
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cleanup() {
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local archive_name="$1"
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rm -f "${archive_name}"*
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log "INFO" "Cleaning up ${archive_name##*/} remains before exit"
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}
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check_input() {
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local input_file="$1"
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local password="$2"
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local size="$3"
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[[ -e "$input_file" ]] || { log "ERROR" "Input file '${input_file}' does not exist"; exit 2; }
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[[ -n "${password}" ]] || { log "ERROR" "No password given"; exit 2; }
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[[ "$size" =~ ^([1-9][0-9]*)?$ ]] || { log "ERROR" "Invalid size '$size', must be empty or a positive number"; exit 2; }
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}
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calc_smart_volumes() {
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# Calculates a "smart" volume size so that each volume (including the final part)
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# will be approximately the same size
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local input_file="$1"
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local size="$2"
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local total_size num_volumes smart_size
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total_size=$(du -s -BM "${input_file}" | grep -oP '^\d+') || return 1
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# If total file size is smaller than volume size, don't pack it into volumes
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if (( total_size < size)); then
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log "WARN" "$input_file is smaller than ${size}MB, skipping volumes"
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return 1
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fi
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num_volumes=$(( (total_size + size - 1) / size ))
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smart_size=$(( (total_size + num_volumes - 1) / num_volumes ))
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log "INFO" "Calculated smart volume size '$smart_size'"
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echo "$smart_size"
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}
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get_volumes() {
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local input_file="$1"
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local size="${2:-}"
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local volumes=""
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local smart_size=""
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if [[ -n "$size" ]]; then
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log "INFO" "Volumes size is set to ${size}MB"
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smart_size="$(calc_smart_volumes "$input_file" "$size" || true)"
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fi
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if [[ -n "$smart_size" ]]; then
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volumes="-v${smart_size}m"
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log "INFO" "Volumes set to '$volumes'"
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else
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log "INFO" "Volumes argument unset"
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fi
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echo "$volumes"
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}
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generate_name() {
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# Generates a random archive name of 20 alphanumeric characters
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local archive_dir="$1"
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local archive_name
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archive_name="$archive_dir/$(tr -dc '[:alnum:]' < /dev/urandom | head -c 20).7z"
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log "INFO" "Generated archive name '$archive_name'"
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echo "$archive_name"
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}
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create_archive() {
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local input_file="$1"
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local password="$2"
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local volumes="$3"
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local archive_name="$4"
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7z a -mhe=on "-p${password}" "$volumes" "$archive_name" "${input_file}"
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}
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main() {
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local input_file="${1:-}"
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local password="${2:-}"
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local size="${3:-}"
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local volumes archive_name archive_dir
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check_dependencies "7z"
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check_input "$input_file" "$password" "$size"
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archive_dir="$(dirname "$0")/../archives"
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mkdir -p "$archive_dir"
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archive_name="$(generate_name "$archive_dir")"
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volumes="$(get_volumes "$input_file" "$size")"
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log "INFO" "Packing '${input_file}' into archive '$archive_name' with password '${password}'"
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trap 'cleanup "$archive_name"' ERR INT
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create_archive \
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"$input_file" \
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"$password" \
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"$volumes" \
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"$archive_name"
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log "NOTICE" "Archive created"
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}
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main "$@"
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#!/bin/bash
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preview_dir="$(dirname "$0")/../previews"
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search_dir="${1}"
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check_dependencies() {
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if ! mkdir -p "$preview_dir"; then
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echo "ERROR: Unable to create preview directory"
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exit 1
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elif ! command -v ffmpeg xargs 2>&1 >/dev/null; then
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echo "ERROR: FFmpeg and xargs must be installed"
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exit 1
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fi
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}
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check_input() {
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if [[ ! -e "${search_dir}" ]]; then
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echo "ERROR: Input file '${search_dir}' does not exist"
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exit 2
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fi
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}
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# Search for videos recursively using the MIME type
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find_videos() {
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video_list=$(find ${search_dir} -type f -print0 | xargs -0 file -i | grep -oP '.*(?=:\s+video/)')
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echo "${video_list}" >&2
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}
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create_previews() {
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while IFS= read -r video; do
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echo "Making preview for ${video}"
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make_preview
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done <<< "${video_list}"
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}
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get_size() {
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IFS=','
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read -r width height <<< $(ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=p=0 "${video}")
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if (( $width >= $height )); then
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rows=4 cols=5
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scale_format="200:-1"
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else
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rows=5 cols=4
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scale_format="-1:200"
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fi
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}
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get_num_frames() {
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local num_snapshots=$(( rows * cols ))
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num_frames=$(ffprobe -v error -select_streams v:0 -count_frames -show_entries stream=nb_read_frames -of csv=p=0 "${video}")
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echo "Num frames: $num_frames" >&2
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frames_per_snapshot=$(( num_frames / num_snapshots ))
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}
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make_preview() {
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get_size
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get_num_frames
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filename="$preview_dir/$(basename "${video}").webp"
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filters="select=not(mod(n\,$frames_per_snapshot)),scale=$scale_format,tile=${rows}x${cols}"
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ffmpeg -nostdin -loglevel panic -i "${video}" -frames 1 -q:v 90 -vf "$filters" "${filename}"
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}
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check_dependencies
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check_input
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find_videos
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create_previews
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