System Gen111 @ 2025-11-17-02:42:57 by jonas@monolith

pkgs/bulk-transcode/bulk-transcode.sh

@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+
+declare -rA presets=(
+    [davinci-resolve]="-c:v dnxhd -profile:v dnxhr_hq -pix_fmt yuv422p -c:a pcm_s16le"
+    [instagram]="-vf scale='if(gte(iw/ih,1),1920,-1)':'if(gte(iw/ih,1),-1,1920)' -pix_fmt yuv420p -c:v h264_nvenc -b:v 3500k -b:a 128k -c:a aac -movflags +faststart"
+    [web-generic]="-vf scale='if(gte(iw/ih,1),1920,-1)':'if(gte(iw/ih,1),-1,1920)' -pix_fmt yuv420p -c:v h264_nvenc -crf 23 -preset medium -c:a aac -b:a 128k -movflags +faststart"
+    [storage]="-c:v hevc_nvenc -preset p7 -b:v 0 -spatial-aq 1 -rc vbr_hq -c:a copy"
+)
+declare -rA containers=(
+    [davinci-resolve]="mov"
+    [instagram]="mp4"
+    [web-generic]="mp4"
+    [storage]="mp4"
+)
+
+where="${1:-.}"
+dest="${2:-$where}"
+
+selection=$(find "$where" -type f | fzf --multi --preview 'ffprobe -v error -show_format -show_streams {}' --preview-window=up:wrap)
+
+preset=$(
+    printf '%s\n' "${!presets[@]}" | \
+    fzf --multi --prompt "Select a preset"
+)
+flags="${presets[$preset]}"
+container="${containers[$preset]}"
+
+output_dir=$(find "$dest" -type d ! -name '.*' ! -path '*/.*/*' | fzf --preview 'tree -C {}' --preview-window=up:wrap --prompt "Select output directory: ")
+
+if gum confirm "Flatten the directory structure?";
+then
+    flatten=true
+else
+    flatten=false
+fi
+
+
+function transcode_job {
+    local ifile="$1"
+    local output_dir="$2"
+    local flatten="$3"
+    local where="$4"
+    local flags="$5"
+    local container="$6"
+    local fname=$(basename "$ifile")
+    local segment=$(realpath --relative-to="$where" "$ifile")
+
+
+    if [ "$flatten" = true ]; then
+        output_file="$output_dir/$fname.$container"
+    else
+        output_file="$output_dir/$segment.$container"
+    fi
+
+    tmp_file=$(mktemp)
+
+    echo "Running Command:  ffmpeg -y -i $ifile $flags $output_file" >> "$tmp_file"
+
+    mkdir -p "$(dirname "$output_file")"
+
+    if ffmpeg -y -i "$ifile" $(echo -n "$flags") "$output_file" 2>> "$tmp_file";
+    then
+        rm -f "$tmp_file"
+    else
+        # gum log "Failed to transcode $ifile. Check ./error.log for details."
+        cat "$tmp_file" >> error.log
+        rm -f "$tmp_file"
+
+    fi
+}
+export -f transcode_job
+
+mapfile -t files <<< "$selection"
+len=${#files[@]}
+i=1
+for file in "${files[@]}"; do
+    if [[ -f "$file" ]]; then
+        gum spin --spinner dot --title "[$i/$len] Transcoding $file" -- bash -c "source <(declare -f transcode_job); transcode_job \"$file\" \"$output_dir\" \"$flatten\" \"$where\" \"$flags\" \"$container\""
+    else
+        echo "Skipping invalid file: $file" >&2
+    fi
+    ((i++))
+done