strip_track_except: use complete TMPFILE name, exit when ffmpeg errors out

strip_track_except.sh

@@ -17,12 +17,12 @@ TRACK_COUNT=$(echo "$JSON_OUTPUT" | jq length)
 # check if more than 1 audio track is present
 [[ $TRACK_COUNT -lt 2 ]] && echo -e "\tFile has only 1 track, skipping." && exit 1
 # check if tracks other than the one to keep are present
-UNDESIRED_TRACK_COUNT=$(echo "$JSON_OUTPUT" | jq '[.[] | select(.properties.language!="$LANGUAGE_TO_KEEP")] | length')
+UNDESIRED_TRACK_COUNT=$(echo "$JSON_OUTPUT" | jq "[.[] | select(.properties.language!=\"${LANGUAGE_TO_KEEP}\")] | length")
-[[ $UNDESIRED_TRACK_COUNT -lt 2 ]] && echo -e "\tFile has only '$LANGUAGE_TO_KEEP' tracks, skipping." && exit 1
+[[ $UNDESIRED_TRACK_COUNT -eq 0 ]] && echo -e "\tFile has only '$LANGUAGE_TO_KEEP' tracks, skipping." && exit 1
 FILENAME_EXT=${FILENAME##*.}
 echo -e "\tRemoving all audio tracks except '$LANGUAGE_TO_KEEP' tracks..."
-TMPFILE=$(mktemp)
+TMPFILE=$(mktemp --dry-run --suffix=.${FILENAME_EXT})
-echo -e "\tOutputting to temporary file ${TMPFILE}.${FILENAME_EXT}..."
+echo -e "\tOutputting to temporary file ${TMPFILE}..."
-pv "$FILENAME" | ffmpeg -i pipe:0 -map 0:v -map 0:a:m:language:${LANGUAGE_TO_KEEP} -map 0:s -c copy -v error "${TMPFILE}.${FILENAME_EXT}"
+! pv "$FILENAME" | ffmpeg -i pipe:0 -map 0:v -map 0:a:m:language:${LANGUAGE_TO_KEEP} -map 0:s -c copy -v error "${TMPFILE}" && echo "Something went wrong, aborting." && exit
 echo -e "\tReplacing ${FILENAME} with ${TMPFILE}..."
-mv "${TMPFILE}.${FILENAME_EXT}" "$FILENAME"
+mv "${TMPFILE}" "$FILENAME"