Initial commit with two utilities: reducepdf and whisper

.gitignore

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+markitdown

README.md

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+# My ./local/bin collection of scripts for my convenience
+
+Currently done from my work computer, I have the following utilities:
+
+- `reducepdf.sh`: Reduce a PDF file size by reducing the ppi of the images.
+- `whisper.sh`: Transcribe audio and video files directly in the directory they're on.

reducepdf.sh

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+#!/bin/bash
+
+# Function to display usage information and exit
+usage() {
+	echo "Usage: $0 input.pdf output.pdf [-r resolution] [-h]"
+	echo ""
+	echo "Options:"
+	echo "-r     Set the image resolution (default is 150ppi)"
+	echo "-h     Display this help message"
+	exit 1
+}
+
+# Default settings
+RESOLUTION=150
+
+# Parse command-line options
+while getopts ":r:h" opt; do
+	case ${opt} in
+	r)
+		RESOLUTION=$OPTARG
+		;;
+	h)
+		usage
+		;;
+	\?)
+		echo "Invalid option: -$OPTARG" >&2
+		exit 1
+		;;
+	:)
+		echo "Option -$OPTARG requires an argument." >&2
+		exit 1
+		;;
+	esac
+done
+
+shift $((OPTIND - 1))
+
+# Check if the correct number of arguments are provided after parsing options
+if [ "$#" -ne 2 ]; then
+	usage
+fi
+
+INPUT_FILE="$1"
+OUTPUT_FILE="$2"
+
+# Check if input file exists
+if [ ! -f "$INPUT_FILE" ]; then
+	echo "Input file '$INPUT_FILE' does not exist."
+	exit 1
+fi
+
+# Extract directory and base name from output file path
+OUTPUT_DIR=$(dirname "$OUTPUT_FILE")
+OUTPUT_BASENAME=$(basename "$OUTPUT_FILE")
+
+# Create the output directory if it doesn't already exist
+mkdir -p "$OUTPUT_DIR"
+
+# Run Ghostscript command with specified resolution
+gs \
+	-sDEVICE=pdfwrite \
+	-dCompatibilityLevel=1.7 \
+	-dPDFSETTINGS=/prepress \
+	-dDownsampleMonoImages=false \
+	-dDownsampleColorImages=true \
+	-dColorImageResolution=$RESOLUTION \
+	-dGrayImageResolution=$RESOLUTION \
+	-dMonoImageResolution=$RESOLUTION \
+	-dPreserveOPIRequests=false \
+	-dSubsetFonts=true \
+	-dEmbedAllFonts=true \
+	-sProcessColorModel=DeviceRGB \
+	-dQUIET -dBATCH -dNOPAUSE \
+	-sOutputFile="$OUTPUT_FILE" "$INPUT_FILE"
+
+# Check if Ghostscript command was successful
+if [ $? -ne 0 ]; then
+	echo "Error: Ghostscript failed to process the file '$INPUT_FILE'."
+	exit 1
+fi
+
+echo "Successfully converted '$INPUT_FILE' to '$OUTPUT_BASENAME'"
+

whisper.sh

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+#!/bin/bash
+# Script that uses `whispercpp` to tranascribe audio and video files automatically and outputs the results in the same directory
+
+# Configuración
+REPO_DIR=~/code/whisper.cpp
+WHISPER_CLI="$REPO_DIR/build/bin/whisper-cli"
+TEMP_DIR=$(mktemp -d)
+LANGUAGE="en"
+OUTPUT_FORMAT="txt"
+
+# Rutas de los modelos
+MODEL_LARGE="/Users/borjarobert/code/whisper.cpp/models/ggml-large-v3-turbo.bin"
+MODEL_MEDIUM="/Users/borjarobert/code/whisper.cpp/models/ggml-medium.bin"
+MODEL_SMALL="/Users/borjarobert/code/whisper.cpp/models/ggml-base.bin"
+MODEL_PATH="$MODEL_LARGE" # Valor por defecto
+
+# Función para mostrar uso
+usage() {
+	echo "Uso: whisper [-u] [-t archivo] [-m modelo] [-l idioma] [-f formato]"
+	echo "Opciones:"
+	echo "  -u              Actualiza y recompila whispercpp"
+	echo "  -t archivo      Transcribe el archivo de video"
+	echo "  -m modelo       Especifica el modelo (large, medium, small)"
+	echo "  -l idioma       Especifica el idioma (por defecto: en)"
+	echo "  -f formato      Especifica el formato de salida (txt, srt, json, vtt, lrc, csv)"
+	exit 1
+}
+
+# Manejo de argumentos
+while getopts ":ut:m:l:f:" opt; do
+	case $opt in
+	u)
+		echo "Actualizando whispercpp..."
+		cd "$REPO_DIR" || exit
+		git pull
+		make
+		echo "Actualización completa."
+		exit 0
+		;;
+	t)
+		FILE="$OPTARG"
+		;;
+	m)
+		case $OPTARG in
+		large)
+			MODEL_PATH="$MODEL_LARGE"
+			;;
+		medium)
+			MODEL_PATH="$MODEL_MEDIUM"
+			;;
+		small)
+			MODEL_PATH="$MODEL_SMALL"
+			;;
+		*)
+			echo "Modelo no válido: $OPTARG. Usando el modelo por defecto (large)."
+			;;
+		esac
+		;;
+	l)
+		LANGUAGE="$OPTARG"
+		;;
+	f)
+		OUTPUT_FORMAT="$OPTARG"
+		;;
+	\?)
+		echo "Opción inválida: -$OPTARG" >&2
+		usage
+		;;
+	:)
+		echo "La opción -$OPTARG requiere un argumento." >&2
+		usage
+		;;
+	esac
+done
+
+# Verificar si se proporcionó un archivo para transcribir
+if [ -z "$FILE" ]; then
+	usage
+fi
+
+# Verificar si whisper-cli está disponible
+if ! command -v "$WHISPER_CLI" &>/dev/null; then
+	echo "Error: whisper-cli no se encuentra en $WHISPER_CLI"
+	exit 1
+fi
+
+# Convertir archivo a WAV
+WAV_FILE="$TEMP_DIR/$(basename "$FILE" .mp4).wav"
+ffmpeg -i "$FILE" -acodec pcm_s16le -ac 1 -ar 16000 "$WAV_FILE" -y || {
+	echo "Error al convertir a WAV"
+	rm -rf "$TEMP_DIR"
+	exit 1
+}
+
+# Preparar nombres de salida
+OUTPUT_BASE="$(basename "$FILE" .mp4)_${LANGUAGE}"
+OUTPUT_DIR="$(pwd)" # Directorio actual
+OUTPUT_FILE="$OUTPUT_DIR/$OUTPUT_BASE"
+
+# Transcribir
+case "$OUTPUT_FORMAT" in
+txt)
+	$WHISPER_CLI -m "$MODEL_PATH" -l "$LANGUAGE" -otxt -of "$OUTPUT_FILE" "$WAV_FILE" | tee "$OUTPUT_FILE"_timestamped.txt
+	;;
+srt)
+	$WHISPER_CLI -m "$MODEL_PATH" -l "$LANGUAGE" -osrt -of "$OUTPUT_FILE" "$WAV_FILE" | tee "$OUTPUT_FILE"_timestamped.txt
+	;;
+json)
+	$WHISPER_CLI -m "$MODEL_PATH" -l "$LANGUAGE" -oj -of "$OUTPUT_FILE" "$WAV_FILE" | tee "$OUTPUT_FILE"_timestamped.txt
+	;;
+vtt)
+	$WHISPER_CLI -m "$MODEL_PATH" -l "$LANGUAGE" -ovtt -of "$OUTPUT_FILE" "$WAV_FILE" | tee "$OUTPUT_FILE"_timestamped.txt
+	;;
+lrc)
+	$WHISPER_CLI -m "$MODEL_PATH" -l "$LANGUAGE" -olrc -of "$OUTPUT_FILE" "$WAV_FILE" | tee "$OUTPUT_FILE"_timestamped.txt
+	;;
+csv)
+	$WHISPER_CLI -m "$MODEL_PATH" -l "$LANGUAGE" -ocsv -of "$OUTPUT_FILE" "$WAV_FILE" | tee "$OUTPUT_FILE"_timestamped.txt
+	;;
+*)
+	echo "Formato de salida no soportado: $OUTPUT_FORMAT"
+	rm -rf "$TEMP_DIR"
+	exit 1
+	;;
+esac
+
+# Limpiar archivos temporales
+rm -rf "$TEMP_DIR"
+
+echo "Transcripción completada. Archivos generados: ${OUTPUT_FILE}_timestamped.txt y ${OUTPUT_FILE}.${OUTPUT_FORMAT}."