+# encode the vob file into a compressed file format
+function compress_vob_file {
+ typeset -i found_profile=0
+
+ if [ "$profile" == "hdtv" ]; then
+ # DIVX 2 pass encoding
+ found_profile=1
+ final_output_file="$dest/$dvdname.avi"
+ mencoder_general_opts="-quiet $lang_opts -passlogfile $passlogfile"
+ mencoder_output_opts="-ofps 30000/1001 -ffourcc DIVX"
+ mencoder_video_filter_opts="-vf pullup,softskip,hqdn3d=2:1:2$CROP$SCALE"
+ mencoder_video_encoder_opts="-ovc xvid -xvidencopts pass=%PASS"
+ video_encoder_opts[0]="bitrate=$target_bitrate"
+ video_encoder_opts[1]="threads=$mencoder_threads"
+ video_encoder_opts[2]="chroma_opt"
+ video_encoder_opts[3]="vhq=4"
+ video_encoder_opts[4]="bvhq=1"
+ video_encoder_opts[5]="quant_type=mpeg"
+ video_encoder_opts[6]="autoaspect"
+ for OPTS in "${video_encoder_opts[@]}"; do
+ mencoder_video_encoder_opts="$mencoder_video_encoder_opts:$OPTS"
+ done
+
+ if [ $audio_2ch -eq 0 ]; then
+ # These options produce good 6 channel audio for linux and windows
+ mencoder_audio_opts="-oac copy"
+ # There are 3 different ways to specify 6 channel encoding. We'll try the other ones in order if one of them fails.
+ mencoder_audioch_opts[0]="-channels 6 -af channels=6"
+ mencoder_audioch_opts[1]="-af channels=6"
+ mencoder_audioch_opts[2]=""
+ else
+ # These options produce good 2 channel audio for linux and windows (including the internal mythvideo player)
+ mencoder_audio_opts="-oac mp3lame -lameopts cbr:br=$audio_bitrate"
+ mencoder_audioch_opts[0]=""
+ fi
+
+ fi
+
+ if [ "$profile" == "ipod" ]; then
+ # MP4 encoding
+ found_profile=1
+ SCALE=",scale=576:320"
+ final_output_file="$dest/$dvdname.mp4"
+ mencoder_general_opts="-quiet $lang_opts -passlogfile $passlogfile"
+ mencoder_output_opts="-ofps 30000/1001 -sws 9 -of lavf -lavfopts format=mp4"
+ mencoder_video_filter_opts="-vf harddup$CROP$SCALE";
+ mencoder_video_encoder_opts="-ovc x264 -x264encopts pass=%PASS"
+ video_encoder_opts[0]="bitrate=$target_bitrate"
+ video_encoder_opts[1]="threads=$mencoder_threads"
+ video_encoder_opts[2]="vbv_maxrate=1500"
+ video_encoder_opts[3]="vbv_bufsize=2000"
+ video_encoder_opts[4]="nocabac"
+ video_encoder_opts[5]="me=umh"
+ video_encoder_opts[6]="subq=6"
+ video_encoder_opts[7]="frameref=6"
+ video_encoder_opts[8]="trellis=1"
+ video_encoder_opts[9]="level_idc=30"
+ video_encoder_opts[10]="global_header"
+ for OPTS in "${video_encoder_opts[@]}"; do
+ mencoder_video_encoder_opts="$mencoder_video_encoder_opts:$OPTS"
+ done
+
+ mencoder_audio_opts="-oac faac -faacopts mpeg=4:object=2:br=$audio_bitrate:raw"
+ mencoder_audioch_opts[0]="-channels 2 -srate 48000"
+ fi
+
+ if [ $found_profile -eq 0 ]; then
+ fatal_and_exit "-E- Unable to find a profile handler for profile: $profile"
+ fi
+
+ # Do not edit this line. $mencoder_video_encoder_opts must be last
+ mencoder_opts="$mencoder_general_opts $mencoder_output_opts $mencoder_audio_opts $mencoder_video_filter_opts $mencoder_video_encoder_opts"
+ mencoder_retval=0
+
+ for PASS in 1 2
+ do
+ # Set some options based on which pass we are in
+ mencoder_opts_for_pass=$(echo "$mencoder_opts" | sed "s,%PASS,$PASS,g")
+ [ $PASS -eq 1 ] && mencoder_opts_for_pass="$mencoder_opts_for_pass:turbo"
+ [ $PASS -eq 1 ] && output_file="/dev/null"
+ [ $PASS -eq 2 ] && output_file="$final_output_file"
+
+ # It's possible that the audio channel encoding may not work. Cycle through all our different audioch_opts until we find one that works.
+ for CH_OPTS in "${mencoder_audioch_opts[@]}";
+ do
+ echo -e " Encoding pass $PASS"
+ echo -e "\n Encoding pass $PASS: mencoder $CH_OPTS $mencoder_opts_for_pass \"$vobfile\" -o \"$output_file\" >> $encodelog 2>&1" >> "$logfile"
+ mencoder $CH_OPTS $mencoder_opts_for_pass "$vobfile" -o "$output_file" > $encodelog 2>&1
+ mencoder_retval=$?
+ grep -q "\[channels\] Invalid" $encodelog
+ if [ $? != 0 ]; then
+ break;
+ else
+ echo -e "\n-W- Audio channel encoding error. Falling back to next audio channel encoding scheme." >> "$logfile"
+ fi
+ done
+
+ if [ $mencoder_retval != 0 ]; then
+ fatal_and_exit "-E- Unhandled mencoder error"
+ fi
+
+ # Concatenate the encode log to our main log file, greping out unwanted lines
+ cat $encodelog | grep -v "Pos:" >> "$logfile"
+
+ done
+}
+