#!/bin/bash

####################################################################
# process a single movie: convert from MKV to MP4, set bitrate and #
# frame rates depending on class, or use quality factor, remove    #
# subtitles and other extraneous streams                           #
#                                                                  #
# last updated 07-03-2020                                          #
####################################################################

# MAKEMKVCON FOR IMAGES

# makemkvcon mkv iso:./ConspiracyTheory1997.img all temp
# makemkvcon mkv file:[folderpath] all temp

# -map 0:v -map 1:a 
# -ss: 00:05:00 -t: 00:05:00
# -channel_layout '5.1'
# -metadata title="I [VHS] (1984)" -metadata year="1984" -metadata class="VHS"

# If you use quality, let the viewer know what crf you used: -metadata crf="10"
# recommended values by handbrake (aXXo) are 17–28 for x264
# -crf nn: variable quality percentages
# -crf 0 = 100%, 1 ~ 98%, 5 ~ 90%, 8 ~ 84%, 10 ~ 80%, 13 ~ 75%, 18 ~ 65%, 23 ~ 55%, 28 ~ 45%, 51 = 0%

# convert to 44,100 128k stereo: -ac 2 -ar 44100 -ab 128k
# convert to 128k mono: -ac 1 -ab 128k 

# concatenate

# in.txt file contents
# this is a comment
#file '/path/to/file1'
#file '/path/to/file2'
#file '/path/to/file3'

#ffmpeg -f concat -safe 0 -i in.txt -c copy "WitchSoldiers.mp3";

# Combining multi-file already encoded movies or miniseries
#ffmpeg -i Lavoie.mp4 -ss: 00:49:51 -t: 00:43:47 -c copy Lavoie.mp4

# resyncing audio (fixing virtualdub error but you don't have Handbrake)
# test
#ffmpeg -i "/Volumes/Aslan/Movies/Joy [UHD] [SOUNDNOTSYNCEDSLIGHTLY] (2015).mp4" -itsoffset 0.22 -i "/Volumes/Aslan/Movies/Joy [UHD] [SOUNDNOTSYNCEDSLIGHTLY] (2015).mp4" -map 0:v -map 1:a -ss: 00:05:00 -t: 00:05:00 -c copy "a2.mp4"
# allofit
#ffmpeg -i "/Volumes/Aslan/Movies/Joy [UHD] [SOUNDNOTSYNCEDSLIGHTLY] (2015).mp4" -itsoffset 0.22 -i "/Volumes/Aslan/Movies/Joy [UHD] [SOUNDNOTSYNCEDSLIGHTLY] (2015).mp4" -map 0:v -map 1:a -c copy "/Volumes/Aslan/Movies/Joy [UHD] [SOUNDNOTSYNCEDSLIGHTLY] (2015)2.mp4"

# Film (before 1972)
# "the young teacher", a south korean indy, was the first movie to be released on VHS videotape.
# So, any movies that were released before 1971 were first transcribed from film to VHS, then from VHS to DVD.
# Any movies that were not professionaly transcribed might need special processing in this section.
# It's recommended to use quality factors (crf) rather than constant bitrates; they will be small anyway (or should be).

# VHS (1972 - 1995)
# These are old enough that they can be converted straight through, removing any foreign language audio tracks.
# I rarely use ffmpeg command line directly for these except in special cases or I want to add metadata; 
# Handbrake can do these. 
# Sometimes need to be converted to mono or MP3. 
# Multiple AVIs are common in this class and need to be concatenated; Handbrake can't do that (yet).
# -map 0:0 -map 0:1 -channel_layout '5.1' -ar 44100k -ab 128k 

#ffmpeg -i movie.mkv -sn "Completed/whatever [VHS] (year).mp4"
#ffmpeg -f concat -safe 0 -i in.txt "Completed/Marathon Man [VHS] (1976).mp4";

# DVD (480p) (1995 - ~2002-ish)
# Handbrake can do most of these using quality encoding.
# If you want to add metadata later just use ffmpeg command line with -c copy.
# -vf scale=720:480 -map 0:0 -map 0:1 -channel_layout '5.1'
# -sn -metadata title="" -metadata year="" -metadata class="DVD" -metadata crf="10"

#ffmpeg -i "themarine_hd_2006.mkv" -sn -metadata title="The Marine [HD] (2006)" -metadata year="2006" -metadata class="HD" -metadata crf="13" -crf 13 -vf scale=1280:720 -channel_layout '5.1' "Completed/The Marine [HD] (2006).mp4";

# for multi-disk dvd concatenations with edits. Best practice: run these commands one at a time
#ffmpeg -i "AnneAvonlea1_1987.mp4" -t: 00:01:34 -c copy "AnneAvonlea1_1987_1.mp4" 
#ffmpeg -i "AnneAvonlea2_1987.mp4" -ss: 00:01:34 -c copy "AnneAvonlea2_1987_1.mp4" 

#ffmpeg -i "Bible1_2.mkv" -sn -crf 13 -map 0:0 -map 0:1 -channel_layout '5.1' "Bible1_2.mp4" 
#ffmpeg -i "Bible1_3.mkv" -sn -crf 13 -map 0:0 -map 0:1 -channel_layout '5.1' "Bible1_3.mp4"

#ffmpeg -f concat -safe 0 -i in.txt -metadata title="Anne of Green Gables - of Avonlea [VHS] (1987)" -metadata year="1987" -metadata class="VHS" -metadata crf="18" -c copy "Anne of Green Gables - of Avonlea [VHS] (1987).mp4"

# HD (720p - 1080p) (2002 - ~2009-ish)
# Any movie released after 2008 should be tested for audio problems on your hardware player first before 
# processing the full movie.
# -b:v 6M -crf 10 -vf scale=1280:720 -map 0:0 -map 0:2 -channel_layout '5.1' -ss: 00:03:00 -t: 00:05:00 
# -sn -metadata title="" -metadata year="" -metadata class="HD" -metadata crf="10"

#ffmpeg -i "Secondhand Lions [HD] (2003).mkv" -sn \
#       -metadata title="Secondhand Lions [HD] (2003)" -metadata year="2003" -metadata class="HD" -metadata crf="13" \
#       -crf 13 -vf scale=1280:720 \
#       -channel_layout '5.1' "Completed/Secondhand Lions [HD] (2003).mp4";

# HD2K (1080p) (2009 - 2014) 
# Any movie released 2010 or later should be checked for the Cinavia watermark first with CinDe, 
# then a small sample tested on your viewing hardware, before processing the full movie.
# Sometimes I see these in 10-bit color as they have been downgraded from UHD4K, I call those "HD2K10"
# -c:v libx265 -r 30 -b:v 10M -vf scale=1920:1080 
# -map 0:0 -map 0:2 -channel_layout '5.1' -ss: 00:03:00 -t: 00:05:00 
# -sn -metadata title="" -metadata year="" -metadata class="HD2K" -metadata crf="10"

#ffmpeg -i "RED II [HD2K] (2013).mkv" -sn -metadata title="RED II [HD2K] (2013)" \
# -metadata year="2013" -metadata class="HD2K" \
# -r 30 -b:v 15M \
# -channel_layout '5.1' \
# -map 0:0 -map 0:2 \
# "Completed/RED II [HD2K] (2013).mp4";

# "2K" (1080p) (2012 - 2014) 
# These are rare, but still out there
# -b:v 10M -vf scale=2048:1080 -map 0:0 -map 0:2 -channel_layout '5.1' -ss: 00:03:00 -t: 00:05:00 
# -sn -metadata title="" -metadata year="" -metadata class="2K" 

#ffmpeg -i "Jumper20081080p.mkv" -sn -b:v 7.3M -r 30 -vf scale=2048:1080 "/Volumes/Aslan/Movies/Jumper [2K] (2008).mp4";

# UHD (2160p x264 8-bit) (2014 - ~2018) 
# UHD and higher classes can take all night to process, so test them thoroughly first
# -r 30 -b:v 16M -vf scale=3840:2160 -map 0:0 -map 0:2 -channel_layout '5.1' -ss: 00:03:00 -t: 00:00:45 
# -c:v libx264 -sn -metadata title="" -metadata year="" -metadata class="UHD"

#UHD4K (2160p x265 10-bit) (>= ~2018) 
# Most of these will be in 10-bit color x265 and will take even longer to process than plain UHDs. 
# Plus they have the highest probability of having cinavia. Test samples before full length processing highly recommended.
# -c:v libx265 -r 30 -b:v 16M -vf scale=3840:2160 -map 0:0 -map 0:2 -channel_layout '5.1' -ss: 00:03:00 -t: 00:00:45
# -sn -metadata title="" -metadata year="" -metadata class="UHD4K10"

#ffmpeg -i "/Volumes/Aslan 2/MoviesToBeProcessed/Beauty And The Beast [UHD4K10] (2017).mkv" -sn \
#  -metadata title="Beauty And The Beast [UHD4K10] (2017)" -metadata year="2017" -metadata class="UHD4K10" \
#  -r 30 -c:v libx265 -crf 17 -metadata crf="17" \
#  -map 0:0 -map 0:3 -channel_layout '5.1' \
#  -ss: 00:00:00 -t: 00:00:00 \
#  "/Volumes/Aslan 2/MoviesToWatch/Beauty And The Beast [UHD4K10] (2017) test.mp4";

# CREATE AUDIO SAMPLE FOR CINAVIA CHECK from movies released after 2009 (yes, CinDe can detect cinavia with only audio)
#ffmpeg -i "/Volumes/Aslan 2/MoviesToBeProcessed/47 Meters Down [HD2K] (2017).mkv" -sn -ss: 00:10:00 -t: 00:20:00 test1.mp3 &&
#ffmpeg -i "/Volumes/Aslan 2/MoviesToBeProcessed/Arrival [HD2K] (2016).mkv" -sn -ss: 00:10:00 -t: 00:20:00 test2.mp3 &&
#ffmpeg -i "/Volumes/Aslan 2/MoviesToBeProcessed/Beauty And The Beast [UHD4K10] (2017).mkv" -sn -ss: 00:10:00 -t: 00:20:00 test3.mp3;
#ffmpeg -i "/Volumes/Aslan 2/MoviesToBeProcessed/Hacksaw Ridge [UHD4K10] (2016).mkv" -sn -ss: 00:10:00 -t: 00:20:00 test4.mp3 &&

# RIP DIRECTLY FROM DVD
# https://www.makemkv.com/developers/usage.txt
# makemkvcon mkv disc:0 all temp

# =================================================================================================================

open .