tc-audio-transcode: better way to overwrite.

.Xresources

@@ -39,7 +39,13 @@ URxvt.clipboard.pastecmd:   xclip -o -quiet
 ! URxvt.clipboard.copycmd:  xclip -i -selection clipboard
 
 !! Font
+!! TODO: xft fonts seem to be messy with ranger image preview.
+! URxvt*font       : xft:Liberation Mono:pixelsize=14
 URxvt*font       : xft:Dejavu Sans Mono:pixelsize=14
+! URxvt*font       : -*-dejavu sans mono-*-*-*-*-*-*-*-*-*-*-iso8859-*
+! URxvt*font       : -*-dejavu sans-medium-r-*-*-14-*-*-*-*-*-*-*
+!xterm*font       : -*-dejavu sans-medium-r-*-*-14-*-*-*-*-*-*-*
+xterm*faceName:DejaVu Sans Mono:pixelsize=12
 
 ! URxvt*boldFont   : xft:Monospace:bold:pixelsize=14
 ! URxvt*boldFont : xft:Monospace Bold:pixelsize=12

.scripts/tc-audio-transcode

@@ -105,7 +105,7 @@ EOF
 
 ## OPTIONS
 CAPITAL=0
-OVERWRITE=0
+OVERWRITE="-n"
 PREVIEW=0
 SKIP=0
 
@@ -148,7 +148,7 @@ while getopts ":a:b:cd:fg:l:n:r:t:hps" opt; do
             CAPITAL=1
             ;;
         f)
-            OVERWRITE=1
+            OVERWRITE="-y"
             ;;
 
         p)
@@ -310,7 +310,7 @@ OUTPUT_FOLDER=$(eval echo $OUTPUT_FOLDER)
 OUTPUT_FILE=$(eval echo $OUTPUT_FILE)
 
 if [ -e "${OUTPUT_FILE}.$OUTPUT_FORMAT" ]; then
-    if [ $OVERWRITE -eq 0 ]; then
+    if [ $OVERWRITE = "-n" ]; then
         ## If file exist, we append a unique timestamp to the name.
         OUTPUT_FILE="$OUTPUT_FILE-$(date '+%F-%H%M%S')"
         OUTPUT_MSG="$(tput setf 1)$(tput bold)(Warning: destination exists, appending timestamp.)$(tput sgr0)"
@@ -397,7 +397,7 @@ STATUS="$(set -o | grep 'shwordsplit' | awk '{print $2}')"
 
 ## TAG/RECODE
 ## With the -map_metadata parameter we clear all metadata.
-ffmpeg -i "$1" -vn -sn $OGG_PARAM \
+ffmpeg $OVERWRITE -i "$1" -vn -sn $OGG_PARAM \
     -map_metadata -1 \
     -metadata title="$OUTPUT_TITLE" \
     -metadata artist="$OUTPUT_ARTIST" \
@@ -410,11 +410,6 @@ ffmpeg -i "$1" -vn -sn $OGG_PARAM \
 
 echo
 
-if [ $OVERWRITE -eq 1 ]; then
-    mv -vf "$OUTPUT_FILE.$OUTPUT_FORMAT" "$1"
-    echo
-fi
-
 ## Restore Zsh previous options. This will not turn off shwordsplit if it
 ## was on before calling the function.
 [ "$STATUS" = "off" ] && set +o shwordsplit

.scripts/tc-video-demux-audio

@@ -7,6 +7,7 @@ fi
 
 if [ $# -ne 2 ]; then
     echo "Usage: ${0##*/} VIDEO AUDIO_OUTPUT"
+    exit
 fi
 
 ffmpeg -i "$1" -vn -sn -c:a copy -map 0:1 "$2"

.scripts/tc-video-transcode

@@ -66,9 +66,10 @@ Transcode FILES or files found in FOLDERS to .mkv with x264 and ogg. Output
 files are the same as the original, with time appended. You can customize
 encoding with the TC_* variables.
 
-  -f:  Overwrite existing file if any.
-  -h:  Display this help.
-  -s:  Sample of ten minutes.
+  -f:      Overwrite existing file if any.
+  -h:      Display this help.
+  -s:      Sample of 5 minutes.
+  -S MIN:  Sample of MIN minutes.
 EOF
 }
 
@@ -79,7 +80,7 @@ TC_OVERWRITE="-n"
 
 TC_SAMPLE=""
 
-while getopts ":fhs" opt; do
+while getopts ":fhsS:" opt; do
     case $opt in
         f)
             TC_OVERWRITE="-y"
@@ -89,7 +90,10 @@ while getopts ":fhs" opt; do
             exit 1
             ;;
         s)
-            TC_SAMPLE="-ss 60 -t 600"
+            TC_SAMPLE="-ss 60 -t 360"
+            ;;
+        S)
+            TC_SAMPLE="-ss 60 -t $((60+60*$OPTARG))"
             ;;
         ?)
             _printhelp "$0"
@@ -116,14 +120,23 @@ fi
 STATUS="$(set -o | grep 'shwordsplit' | awk '{print $2}')"
 [ "$STATUS" = "off" ] && set -o shwordsplit
 
+## WARNING: we mix down audio to 2 channels with '-ac 2'. This greatly reduce
+## file size and avoid any confusion for playback, which is often the case when
+## converting DTS to any other format because DTS has embedded channel
+## description which is not available in other formats.
 _tc_transcode()
 {
     echo "================================================================================"
     ffmpeg $TC_OVERWRITE $TC_SAMPLE -i "$1" \
         -c:v libx264 -preset $TC_VIDEO_PRESET -crf $TC_VIDEO_QUAL $TC_VIDEO_TUNE $TC_VIDEO_OPTS \
-        -c:a libvorbis -b:a $TC_VIDEO_AUDIO_QUAL \
+        -c:a libvorbis -b:a $TC_VIDEO_AUDIO_QUAL -ac 2 \
         -c:s copy \
         -map 0 "${1%.*}-$(date '+%F-%H%M%S').mkv"
+
+        # -metadata:s:a:0 title="FR (OGG Stereo)" \
+        # -metadata:s:a:1 title="EN (OGG Stereo)" \
+        # -c:a libvorbis -b:a $TC_VIDEO_AUDIO_QUAL \
+        # -c:a dca -b:a 500k -strict -2 \
 }
 
 for i in "$@"; do