convert point-and-shoot camera videos (MJPEG w/PCM_U8) to "HD" format (H264 w/ACC MP4)

cheeky.sh

#!/bin/bash 
# @Puppybits circa(2011-05-23)

#FIRST install ffmpeg with the proper plugins then add ffmpeg to profile then convert videos
# sudo port install ffmpeg +gpl +lame +x264 +xvid +faac
# cat ~/.profile echo export #FFMPEG_DATADIR=/opt/local/var/macports/software/ffmpeg/0.6.2_0/opt/local/share/ffmpeg

#usage: ./cheeky.sh ./ ./convertions *.mov

#dir to start search from
directory=$1
#dir to save to
save=$2
#default type to *.mov
videotype=${3:-*\.mov}
#skip 
skipdupes=${4:-"NO"}

#find all files with the extension (case insensitive)
n=0
while read file; do
	echo $file
 a[$n]="$file"
 n=$((n+1))

 # The following < space <(...) is a bash trick so that the 
 # stuff in the while loop are executed in the current
 # shell context, and the 'find' is executed in a subshell
done < <(find $directory -type f -iname $videotype)

echo $a
for file in "${a[@]}"; do
    #get just the filename of the current file
    filename=$(basename "$file")
    #change the extension to .mp4
    name=${filename%.*}\.mp4
    
    if [ $skipdupes == "YES" ] &&  [ -e "$save/$name" ]
    then 
        echo skipped "$name"
    else
        # encode with ffmpeg to h264 w/ aac (works from file that are mjpeg w/ pcm_u8) and redirect print to null
		
        ffmpeg -i "$file" -vcodec libx264 -coder 1 -flags +loop -cmp +chroma -partitions +parti8x8+parti4x4+partp8x8-partb8x8 -me_method umh -subq 6 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b_strategy 1 -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -refs 2 -directpred 1 -flags2 +dct8x8+fastpskip -crf 22 -wpredp 2 -acodec libfaac -ar 44100 -ac 1 -ab 256 -y "$save/$name" &>/dev/null
        
        #rotate cell phone videos (not working yet) 
        #ffmpeg -vf "transpose=1" -i $file -vpre libx264-default -vcodec libx264 -acodec libfaac -ar 48000 -ac 1 -ab 64 -y $save/$name
        #get time and date of source video
        timef=(`stat -t "%G%m%d%H%M.%S" -f "%Sm"  "$file"`)
        #change new file to have the same date and time of source
        touch -t $timef "$save/$name"
        #print out results
        echo "$file" was encoded to "$name" and date set to $timef
    fi
done