webcam

#!/bin/bash

# Copyright (C) 2013, Edgar Uriel Domínguez Espinoza

# webcam-video_sizecript is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or (at
# your option) any later version.

# webcam-video_sizecript is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with webcam-video_sizecript; if not, see <http://www.gnu.org/licenses/>
# or write to the Free Software Foundation, Inc., 51 Franklin St, Fifth
# Floor, Boston, MA 02110-1301 USA

help() {
    echo "Graba o toma una foto del WebCam"
    echo "webcam [OPCIONES]"
    echo "Opciones:"
    echo "-d <DEVICE> Dispositivo origen, por default /dev/video0"
    echo "-r <MODE>   Opciones: 0 - No graba video, solo audío"
    echo "                      1 - No graba, vista miniatura de la cámara"
    echo "                      2 - Toma una foto"
    echo "                      3 - 320x240"
    echo "                      4 - 640x480 (default)"
    echo "                      5 - 1280x720"
    echo "-f <FILE>   Archivo donde se guardará la imagen. El formato será:"
    echo "            <FILE>-YYYYMMDD-HHMMSS por default es: webcam"
    exit 0
}
# Begin Script
FILE=webcam
MODE=4
DEVICE=/dev/video0

if [[ $1 == "-h" ]]; then
    help
else
    while getopts d:r:f: option
    do
	case "${option}"
            in
	    d) DEVICE=${OPTARG} ;;
            r) MODE=${OPTARG}   ;;
            f) FILE=${OPTARG}   ;;
	esac
    done
    FILE_NAME=$HOME/Videos/Screencasts/$FILE-`date +%Y%m%d-%H%M%S`
    case $MODE in
	0)
	    ffmpeg -f pulse -ac 2 -i default -acodec flac $FILE_NAME.flac ;;
	1)
	    ffplay -video_size 176x177 -f v4l2 $DEVICE ;;
	2) 
	    ffmpeg -y -r 1 -t 1 -f v4l2 -vframes 1 -video_size sxga -i $DEVICE $FILE_NAME.jpeg ;;
	3)
	    ffmpeg -f v4l2 -video_size 320x240 -i $DEVICE -f pulse -ac 2 -i default -acodec flac -vcodec libx264 $FILE_NAME.mkv ;;
	4)
	    ffmpeg -f v4l2 -video_size 640x480 -i $DEVICE -f pulse -ac 2 -i default -acodec flac -vcodec libx264 $FILE_NAME.mkv ;;
	5) 
	    ffmpeg -f v4l2 -video_size 1280x720 -i $DEVICE -f pulse -ac 2 -i default -acodec flac -vcodec libx264 $FILE_NAME.mkv ;;
	*)
	    help ;;
    esac
    exit 0
fi