From fafc904d0e8b5a76577f16700c123af684176fdc Mon Sep 17 00:00:00 2001
From: Alex Xu <alex_y_xu@yahoo.ca>
Date: Mon, 2 Sep 2013 09:41:42 -0400
Subject: Don't overwrite files when encoding.

---
 iencode.sh        | 11 ++++++++++-
 vencode.sh        |  4 ++--
 www/css/index.css |  1 +
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/iencode.sh b/iencode.sh
index 990d027..460db3b 100755
--- a/iencode.sh
+++ b/iencode.sh
@@ -5,6 +5,8 @@ CWEBP=cwebp
 # configure flags
 CWEBP_FLAGS="-m 6"
 
+set -e
+
 cd $(dirname $0)/www/dump
 
 iencode() {
@@ -15,9 +17,16 @@ iencode() {
   find . -name \*."${EXT}" -print0 | xargs -0 -P ${THREADS} -n 1 bash -c '
     IN="$0"
     OUT="${IN%.${EXT}}.webp"
-    ${CWEBP} -q "${QUAL}" ${CWEBP_FLAGS} ${IN} -o ${OUT}
+    [[ -f ${OUT} ]] || ${CWEBP} -q "${QUAL}" ${CWEBP_FLAGS} ${IN} -o ${OUT}
   '
 }
 
 iencode jpg 90
 iencode png 99
+
+if hash zopflipng; then
+  find . -name \*.png -print0 | xargs -0 -I '{}' -P ${THREADS} zopflipng -my '{}' '{}'
+else
+  echo >&2 "Install zopfli (https://code.google.com/p/zopfli/) to improve PNG compression."
+  echo >&2 "Approximately 2% savings can be seen across the board, with no cost to quality."
+fi
diff --git a/vencode.sh b/vencode.sh
index d29b52c..aff9f4c 100755
--- a/vencode.sh
+++ b/vencode.sh
@@ -3,7 +3,7 @@
 # configure ffmpeg location if not in PATH
 FFMPEG=ffmpeg
 # configure flags
-FFMPEG_FLAGS="-y"
+FFMPEG_FLAGS=""
 
 set -e
 
@@ -11,7 +11,7 @@ cd $(dirname $0)/www/dump/video
 
 vencode() {
   set -x
-  ${FFMPEG} -threads ${THREADS} -i "$1" -c:v "$2" $3 ${FFMPEG_FLAGS} "$4"
+  [[ -f $4 ]] || ${FFMPEG} -threads ${THREADS} -i "$1" -c:v "$2" $3 ${FFMPEG_FLAGS} "$4"
 }
 
 for f in *.mkv; do
diff --git a/www/css/index.css b/www/css/index.css
index 6d1264c..fba9bf3 100644
--- a/www/css/index.css
+++ b/www/css/index.css
@@ -156,6 +156,7 @@ html.no-js #gotit {
 }
 #nvlctc {
   bottom: 25px;
+  transform: rotate(90deg);
 }
 #centered {
   text-align: center;
-- 
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