From f499dfad969696f40a8c013bf670de8644a03e58 Mon Sep 17 00:00:00 2001
From: Michael Campagnaro <mikecampo@gmail.com>
Date: Wed, 20 Jan 2021 13:27:29 -0500
Subject: [PATCH] Add script to fix one-sided audio channel in a vid

---
 aliases                      | 26 +++++-------------
 bin/fix-audio-in-one-channel | 51 ++++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+), 19 deletions(-)
 create mode 100644 bin/fix-audio-in-one-channel

diff --git a/aliases b/aliases
index 27330db..a3970f5 100644
--- a/aliases
+++ b/aliases
@@ -173,16 +173,18 @@ dl_youtube_playlist() {
     shift 3
     local opts="$@"
 
-    if [[ $url == "" || $dir_name == "" ]]; then
-        error "Format: cmd <url> <directory name> <optional args>\n"
+    if [[ $url == "" ]]; then
+        error "Format: cmd <url> <directory name (optional)> <optional args>\n"
         return
     fi
 
     opts+=" --all-subs --embed-subs"
 
-    make_vid_dir_and_cd_into $url "$dir_name"
-    if [[ $? -ne 0 ]]; then
-        return
+    if [[ $dir_name != "" ]]; then
+        make_vid_dir_and_cd_into $url "$dir_name"
+        if [[ $? -ne 0 ]]; then
+            return
+        fi
     fi
 
     printf "${BOLD}Downloading playlist${NORMAL}\n"
@@ -351,14 +353,6 @@ dl_instagram_vid_and_hflip() {
     rm $temp_name
 }
 
-activate_virtualenv() {
-    if [ -f venv/bin/activate ]; then . venv/bin/activate;
-        elif [ -f ../venv/bin/activate ]; then . ../venv/bin/activate;
-        elif [ -f ../../venv/bin/activate ]; then . ../../venv/bin/activate;
-        elif [ -f ../../../venv/bin/activate ]; then . ../../../venv/bin/activate;
-    fi
-}
-
 ###################################
 # Git Functions
 ###################################
@@ -464,12 +458,6 @@ br() {
   b $@ ; r
 }
 
-alias bd='if [ -f build ]; then ./build -data 1 ; else test -f build.sh && ./build.sh -data 1 ; fi'
-alias bbd='if [ -f build ]; then ./build -o 1 -data 1 ; else test -f build.sh && ./build.sh -o 1 -data 1 ; fi'
-#alias bl='brew link --overwrite'
-#lias bld='brew link --overwrite --dry-run'
-alias bower='noglob bower'
-
 if [[ "${platform,,}" == *'ming'* ]]; then
     _checksum() {
         local algo="$1"
diff --git a/bin/fix-audio-in-one-channel b/bin/fix-audio-in-one-channel
new file mode 100644
index 0000000..4b13c1e
--- /dev/null
+++ b/bin/fix-audio-in-one-channel
@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+
+# Use this to fix the audio of a video that has audio in only the left or right
+# channel. This does not re-encode the video.
+
+if which tput >/dev/null 2>&1; then
+    ncolors=$(tput colors)
+fi
+if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then
+    RED="$(tput setaf 1)"
+    GREEN="$(tput setaf 2)"
+    YELLOW="$(tput setaf 3)"
+    BLUE="$(tput setaf 4)"
+    MAGENTA="$(tput setaf 5)"
+    CYAN="$(tput setaf 6)"
+    BOLD="$(tput bold)"
+    NORMAL="$(tput sgr0)"
+else
+    RED=""
+    GREEN=""
+    YELLOW=""
+    BLUE=""
+    MAGENTA=""
+    CYAN=""
+    BOLD=""
+    NORMAL=""
+fi
+
+if [[ $1 == "" ]]; then
+    printf "\n${BOLD}Usage: $0 <filename> <optional output name>${NORMAL}\n"
+    exit 1
+fi
+
+filename=$(basename -- "$1")
+extension="${filename##*.}"
+filename="${filename%.*}"
+
+output_name="$2"
+
+if [[ $output_name == "" ]]; then
+    output="${filename}_repaired_audio.$extension"
+else
+    output="${output_name}.$extension"
+fi
+
+printf "\n${YELLOW}${BOLD}Repairing audio in $filename.$extension | output: $output${NORMAL}\n"
+
+ffmpeg -i "$filename.$extension" -c:v copy -ac 1 "$output"
+
+printf "\n${GREEN}${BOLD}Done repairing audio in $filename.$extension | output: $output${NORMAL}\n\n"
+