From 420c80aba3a48cfbdf13e21dcd323346657bc615 Mon Sep 17 00:00:00 2001
From: "Alan J. Pippin" <ajp@pippins.net>
Date: Wed, 20 May 2009 14:21:59 -0600
Subject: [PATCH] Added new aspect option -a <W:H> or -a <W> that allows the
 user to specify a scaling factor to apply to the resultant video in -x mode.

---
 rip_dvd | 33 ++++++++++++++++++++++++++++-----
 1 file changed, 28 insertions(+), 5 deletions(-)

diff --git a/rip_dvd b/rip_dvd
index 3e6d505..f53f99a 100755
--- a/rip_dvd
+++ b/rip_dvd
@@ -45,6 +45,9 @@ typeset dest=""
 typeset isofile=""
 typeset vobfile=""
 typeset dvdpath=""
+typeset aspect=""
+typeset SCALE=""
+typeset CROP=""
 typeset -i keep_intermediate_files=0
 typeset -i make_final_dest_vob=0
 typeset -i make_final_dest_iso=0
@@ -60,7 +63,7 @@ typeset -i invalid_feature_title=0
 typeset -i feature_title_override=0
 typeset -i mplayer_dumpstream_incompatibility=0
 
-while (($#)) && getopts 2mvifkxht:n:d:b:s:t: opt "$@"
+while (($#)) && getopts 2mvifkxht:n:d:b:s:t:a: opt "$@"
 do
     case $opt in
         (n)     dvdname=$OPTARG;;
@@ -75,6 +78,7 @@ do
         (m)     mirror_mode=1;;
         (k)     keep_intermediate_files=1;;
         (t)     feature_title_override=$OPTARG;;
+	(a)     aspect=$OPTARG;;
         (w)     set -$opt;;
         (h)     show_usage=1;;
         (:)     echo >&2 "$0: $OPTARG requires a value"; errors=errors+1;;
@@ -104,12 +108,15 @@ function usage() {
     echo >&2 "                 You must also specify the target size or bitrate using the '-s' or '-b' options"
     echo >&2 "   -s <size>     Set the target size of the AVI file in MB (ex: 700, 1000, etc)"
     echo >&2 "   -b <bitrate>  Set the bitrate desired in the AVI file in kbits/sec (ex: 1500, 2000 (default), etc)"    
+    echo >&2 "   -a <W:H>      Specify the width x height aspect ratio to scale the DVD to (only used in -x mode)"
+    echo >&2 "      <W>        If only the width is given, it will autoset the height to a value which preserves the aspect ratio"
+    echo >&2 "                 The default behavior is autoaspect mode, which preserves the original aspect."
     echo >&2 "   -2            Use 2 channel MP3 audio encoding when making an AVI file (default is 6 channel AC3)"
     echo >&2 "   -k            Keep the intermediate files (good for debugging)"
     echo >&2 "                 In -x mode, run with this option to keep the original .VOB file"
     echo >&2 "                 By default, all intermediary files are deleted. Only the final image is kept"
     echo >&2 "   -t <title>    Specify the main feature title to pull from the DVD (only required if this script can't figure it out)"
-    echo >&2 "   -w            Set the sh Execute/Verbose flag"
+    echo >&2 "   -w            Set the sh Execute/Verbose flag (causes every command to be echoed)"
     echo >&2 ""
     exit 2
 }
@@ -125,8 +132,8 @@ if [ "$dest" == "" ]; then
   usage
 fi
 
-if ([ $target_bitrate -ne 0 ] || [ $target_size -ne 0 ]) && [ $make_final_dest_avi -ne 1 ]; then
-  echo "-E- You can't specify a bitrate in non AVI file mode. You must specify '-x' when using '-b' or '-s'" | tee -a $logfile
+if ([ $target_bitrate -ne 0 ] || [ $target_size -ne 0 ] || [ "$aspect" != "" ]) && [ $make_final_dest_avi -ne 1 ]; then
+  echo "-E- You can't specify a bitrate, target_size, or aspect in non AVI file mode. You must specify '-x' when using '-b' or '-s' or '-a'" | tee -a $logfile
   usage
 fi
 
@@ -149,6 +156,22 @@ if [ $mirror_mode -eq 1 ]; then
   fi
 fi
 
+# If the aspect ratio option was specified, set the scale variable appropriately for mencoder
+if [ "$aspect" != "" ]; then
+  echo "$aspect" | grep -q "x"
+  if [ $? == 0 ]; then
+    echo "-E- You must specify the aspect option with a value whose format is W:H"
+    exit 1
+  fi
+  echo "$aspect" | grep -q ":"
+  if [ $? != 0 ]; then
+    SCALE="scale -zoom -xy $aspect"
+  else
+    SCALE="scale=$aspect"
+  fi
+fi
+
+
 # Sanity Check - Key executables
 [[ ! -x `which lsdvd` ]] && echo "-E- missing dependency: lsdvd" && exit
 [[ ! -x `which volname` ]] && echo "-E- missing dependency: volname" && exit
@@ -897,7 +920,7 @@ if [ $mirror_mode -eq 0 ]; then
       # Edit these as needed to suite your needs
       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"
+      mencoder_video_filter_opts="-vf pullup,softskip,hqdn3d=2:1:2$CROP,$SCALE"
       mencoder_video_encoder_opts="-ovc xvid -xvidencopts pass=%PASS:chroma_opt:vhq=4:bvhq=1:quant_type=mpeg:bitrate=$target_bitrate:autoaspect:threads=$mencoder_threads"
 
       # There are a number of different ways to encode 6 channel audio.
-- 
2.34.1