dvd_rip/Readme.org
2023-10-06 16:08:45 +02:00

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#+TITLE: DVD Rip
#+OPTIONS: toc:2
Some scripts to automate ripping and transcoding of your DVDs (movies or series) into video files.
Note this is most efficient digitizing TV series and/or large amounts of movies.
If you only have a few movies you want digitized, I recommend using [[https://handbrake.fr/][Handbrake]] to do it manually.
* How it works
This project is divided in two separate parts, the =ripper= and the =transcoder=.
The idea is to clone this project to your local machine, then run the =ripper= manually, which just copies the inserted DVD.
Then you =transfer= the files to the =transcoder=.
The transcoder can also be on your local machine, or you can have this project cloned onto a server, which then does the transcoding automatically 24/7.
** Ripping
To do the ripping, enter the =ripper= directory and run ~./rip_dvd.py <args>~.
The most important argument is the type of the DVD, either =movie= or =series=, and the name of the movie or TV series you are ripping.
*Directory structure:*
#+begin_example
./ripper
├── bell.oga # The sound to be played when ripping has finished
├── rip_dvd.py # The ripper script
├── rip.log # Logs all ripping attempts
├── ripped
│ ├── movie # The ripped movies
│ └── series # The ripped series
├── tmp # The ripped files while ripping has not yet finished.
│ # If the script has been terminated, this might not get deleted.
│ # In this case just remove it yourselves.
└── transfer_ripped.py # The transfer script
#+end_example
** Transfer
To transfer the ripped files to the transcoder, enter the =ripper= directory and run ~./transfer_ripped.py~.
This will rsync all the ripped files to the ~TRANSFER_DESTINATION_FOLDER~ (see [[*Configuration][Configuration]]) which may be on an external server which then will transcode them into video files.
Note while the transfer is in progress, the script will create =movie_title.lock= files in source and destination folder to indicate the transfer is yet incomplete.
The transcoder will not try to transcode data for which the =.lock= file exists.
** Transcoding
To transcode the ripped files, enter the =transcoder= directory, then run ~./transcode_dvd.py~.
This will try to transcode all the files in the =raw= folder and put the results in the =transcoded= folder.
While transcoding is in progress, you can see the live log produced by handbrake by running ~tail -f raw/movie_title.log~.
You can also run this in a systemd-service. For this see the =video_transcoder.service.sample= file.
*Directory structure:*
#+begin_example
./transcoder
├── transcode_dvd.py # The transcode script
├── transcode.log # Logs all transcoding attempts
├── raw # The transfer_ripped.py script should transfer all ripped files here
│ ├── movie
│ └── series
├── transcoded
│ ├── movie # The transcoded movies
│ └── series # The transcoded series
├── tmp # The transcoded files while transcoding has not yet finished.
│ # In case of an error during transcoding, this might not get deleted.
│ # In this case just remove it yourselves.
└── video_transcoder.service.sample # The sample systemd service file
#+end_example
*** Fixing transcoding errors
When there was an error transcoding you will see an =movie_title.err.log= file in the =raw= folder.
This will include the handbrake logs telling you what has gone wrong.
After you have fixed the error, delete the =movie_title.err.log= file and the transcoder will re-attempt transcoding of the movie on the next run.
**** Fixing Handbrake Error 5
Sometimes when a dvd is damaged, handbrake will exit in the mid of transcoding, resulting in a video file with only a part of the movie.
When this happened, handbrake wrote =Encode failed (error 5)= into the log.
For me, using the option ~--no-dvdnav~ resulted in the full video being transcoded (note the damaged parts will not be fixed).
To tell the transcoder to use this option, just create an empty =series_or_movie_title.nodvdnav= file in the =raw= folder.
**** Fixing series errors
When transcoding TV series, a common error is that there are more video tracks on the DVD than you specified there are episodes on the DVD.
Whether this is the case, you can see at the bottom of the =series_title.err.log= file.
To fix this, find out which tracks correspond to the episodes on the DVD, then create a =series_title.titles= file in the =raw= folder.
In this file specify the track numbers one per line.
*Example:* your series file is called =Lost_S01_E01-04=, but the DVD has 5 tracks.
Assuming track 1 is just a bonus scene you do not want transcoded, create =Lost_S01_E01-04.titles=:
#+begin_example
2
3
4
5
#+end_example
Then delete the =Lost_S01_E01-04.err.log= file and the transcoder will retry the transcoding using just titles 2-5 on its next run.
**** About movie transcoding errors
To automate the DVD-transcoding, this project will tell handbrake to find the main title of the DVD and transcode it.
The detection of the main title can sometimes fail resulting in some other DVD title being transcoded.
This means there is no guarantee that transcoding works for every movie (though in my case it worked for about 90%) and you should check all resulting video files.
In case of a failure it is fastest to rip and transcode the DVD manually with handbrake.
* Configuration
Configuration is done via an =.env= file. For this, just do ~cp .env.sample .env~ and edit the =.env= file to your liking.
When using an server for transcoding, edit the =TRANSFER_DESTINATION_FOLDER= value.
Its default is to transfer the files to the =transcoder/raw= folder of the current project.
* Dependencies
- dvdbackup (=ripper=)
- rsync (=ripper=)
- libnotify (=ripper=)
- handbrake (=transcoder=)
- python3 with dependencies listed in =requirements.txt= (=both=)
** Nix dev-shell
If you use nix you can use the =flake.nix= via ~nix develop~ to enter a shell environment with all the dependencies satisfied.
In case you also use direnv, just run ~direnv allow .~ to automatically enter the environment whenever entering the project directory.
* License
#+begin_quote
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
#+end_quote