#!/bin/bash

# +--------------------------------------------+
# |  SupeSite/X-Space video convert script     |
# |  FlyDragon( ipv6china AT comsenz dot com ) |
# +--------------------------------------------+
export PATH=$PATH:/usr/local/bin
# Please Set Your SupeSite Path Following:
SITEROOT="/data/www/wwwroot/blog.ddzw.net"

LOG_FILE="$SITEROOT/video/conver.log"

ps -elf|grep mencoder|grep -v grep  && exit
ps -elf|grep convert|grep -v grep && exit
#
# check store dir
#
check_dir(){
local STOR_DIR=$1
[ ! -d $SITEROOT/video/$STOR_DIR ] && mkdir -p $SITEROOT/video/$STOR_DIR &&  chmod -R 777 $SITEROOT/video/$STOR_DIR
}

#
# log convert result
#
write_log(){
local FULL_NAME=$1
	case $? in
		0)
			echo "[`date`] :$FULL_NAME convert successful !">>$LOG_FILE
			;;
		*)
			echo "[`date`] :$FULL_NAME convert failed !">>$LOG_FILE
			;;
	esac
}

#
#  ================ main =========================
#
for FULL_NAME in $SITEROOT/video/temp/*
do
	FILE_EXT_NAME=`basename $FULL_NAME`
	FILE_EXT=`echo $FILE_EXT_NAME|cut -d. -f2`
	FILE_NAME=`echo $FILE_EXT_NAME|cut -d. -f1`
	STOR_DIR=`echo $FILE_NAME|cut -d_ -f2|cut -c-6`
	echo [filename.ext  is :] $FILE_EXT_NAME 
	echo [ext is:] $FILE_EXT
	echo [file name is:] $FILE_NAME
	echo
	sleep 1
	case $FILE_EXT in
		mpg|3gp|mov|mpeg|vod|mp4|m4v|avi|mpe)
			echo ===================== use ffmpeg convert [$FULL_NAME] =============================
			check_dir $STOR_DIR
			ffmpeg -i $FULL_NAME -y -ab 56 -ar 11025 -ac 2 -qscale 9 -t 900 -r 15 -s 320*240 \
				 $SITEROOT/video/$STOR_DIR/${FILE_NAME}.flv

			write_log "$FULL_NAME"
			[ -f $SITEROOT/video/$STOR_DIR/${FILE_NAME}.flv ] && chmod 666 $SITEROOT/video/$STOR_DIR/${FILE_NAME}.flv

	                ffmpeg -i $SITEROOT/video/$STOR_DIR/${FILE_NAME}.flv -y -f image2 -ss 8 -sameq -t 0.001 -s 320*240 \
				$SITEROOT/video/$STOR_DIR/${FILE_NAME}.jpg 
			[ $? eq 0 ] && [ -f $SITEROOT/video/$STOR_DIR/${FILE_NAME}.jpg ] && chmod 666 $SITEROOT/video/$STOR_DIR/${FILE_NAME}.jpg
			rm -f $FULL_NAME
			;;

		wmv|asf|rm|rmvb)
			echo ===================== use mencoder convert [$FULL_NAME] =============================
			check_dir $STOR_DIR
			#mencoder $FULL_NAME  -of lavf  -lavfopts i_certify_that_my_video_stream_does_not_use_b_frames  -oac mp3lame -lameopts  abr:br=56 -ovc lavc -lavcopts vcodec=flv:vbitrate=500:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:dia=4:cmp=6:vb_strategy=1 -vf scale=512:-3 -ofps 12 -srate 22050 -o $SITEROOT/video/$STOR_DIR/${FILE_NAME}.flv
			mencoder $FULL_NAME  -of lavf  -oac mp3lame -lameopts  abr:br=56 -ovc lavc -lavcopts vcodec=flv:vbitrate=500:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:dia=4:cmp=6:vb_strategy=1 -vf scale=512:-3 -ofps 12 -srate 22050 -o $SITEROOT/video/$STOR_DIR/${FILE_NAME}.flv

			write_log "$FULL_NAME"
			
			[ -f $SITEROOT/video/$STOR_DIR/${FILE_NAME}.flv ] && chmod 666 $SITEROOT/video/$STOR_DIR/${FILE_NAME}.flv

			ffmpeg -i $SITEROOT/video/$STOR_DIR/${FILE_NAME}.flv -y -f image2 -ss 8 -sameq -t 0.001 -s 320*240 \
				$SITEROOT/video/$STOR_DIR/${FILE_NAME}.jpg

			[ -f $SITEROOT/video/$STOR_DIR/${FILE_NAME}.jpg ] && chmod 666 $SITEROOT/video/$STOR_DIR/${FILE_NAME}.jpg
			rm -f $FULL_NAME

			;;
		*)
			echo "$FULL_NAME unsupport video format or not a video file!!!!"
			;;
	esac

done