Audio CDs are working well!

README.md

@@ -11,15 +11,22 @@ and then re-encode the content to a compressed format.
 
 At the time I'm writing this README, it will:
 
-* ~~Rip audio CDs, look them up in cddb, encode them to VBR MP3, then tag them.~~ A rewrite broke this; I plan to fix it soon.
+* Rip audio CDs, look them up in cddb, encode them to VBR MP3, then tag them. 
+  * It also writes a shell script you can modify to quickly change the tags, since this is a pretty common thing to want to do.
 * Rip video DVDs, transcode them to mkv
 
 ## Requirements
 
-* HandBrakeCLI
+The requirements are fairly light: a few CD tools, cdparanoia, HandBrakeCLI, and some
-* cdparanoia
+DVD libraries.
-* cd-discid
+
-* 
+Most notably, you do *not* need a relational database (SQLite, Postgres, MySQL).
+You just need a file system.
+
+For a complete list of requirements,
+look at the [Dockerfile](Dockerfile) 
+to see what Debian packages it installs.
+
 
 ## How To Run This
 
@@ -34,9 +41,8 @@ Mine is `/srv/ext/incoming`.
         -v /srv/ext/incoming:/incoming \
         registry.gitlab.com/dartcatcher/media-sucker/media-sucker
 
-I can't get it to work with docker swarm.
+I can't get it to work with docker swarm,
-Presumably some magic is happening with `--device`.
+which doesn't support `--device`.
-It probably has something to do with selinux.
 
 Stick a video DVD or audio CD in,
 and the drive should spin up for a while,
@@ -46,9 +52,14 @@ or a new directory of `.mp3` files (for audio).
 
 You can watch what it's doing at http://localhost:8080/
 
+
 ## A note on filenames and tags
 
 This program does the absolute minimum to try and tag your media properly.
+Partly because I'm a lazy programmer,
+but mostly because the computer can only guess at things that you,
+the operator,
+can just read off the box.
 
 For DVDs, that means reading the "title" stored on the DVD,
 which I've seen vary from very helpful (eg. "Barbie A Fashion Fairytale")
@@ -62,13 +73,10 @@ so CDDB takes the length of every track in seconds and tries to match that
 against something a user has uploaded in the past.
 This is wrong a whole lot of the time.
 
-If CDDB can't find a match for an audio CD,
-this program will append the datestamp of the rip to the album name,
-in the hopes that you can remember about what time you put each CD in the drive.
-So for stuff like multi-CD audiobooks, that's pretty helpful.
-
 But the end result in almost every case is that you're going to have to
-manually edit the metadata.
+rename the movie file, or re-tag the audio files.
+This is why you get a `tag.sh` file with every audio CD rip.
+
 
 ## Answers
 
@@ -76,35 +84,23 @@ I'm skipping the part where I make up questions I think people might have.
 
 ### Why I Wrote This
 
-The `automatic-ripping-machine` looks really badass.
+The automatic-ripping-machine looks really badass.
 But after multiple attempts across multiple months
 to get it running,
 I decided it would probably be faster just to write my own.
 
-This isn't as cool as the aumomatic-ripping-machine.
+media-sucker isn't as cool as the automatic-ripping-machine.
 But, at least for me,
-it's a lot more functional,
+it's more useful,
-in that it actually does something.
+in that I can get it to actually do something.
 
 ### Why You Should Run This
 
 The only reason I can think of that anybody would want to use this is if they,
 like me,
-are too dumb to get the `automatic-ripping-machine` to work.
+are too dumb to get the automatic-ripping-machine to work.
 
 ### What Kind Of Hardware I Use
 
 I run it on a Raspberry Pi 4,
 with a Samsung DVD drive from the stone age.
-
-
-## Parting note
-
-As of 2022-08-22, large sections of this code were written under COVID brain-fog.
-This means it's going to look a lot like a 13-year-old wrote it.
-
-I hope one day to clean it up a bit,
-but it's working fairly well, 
-despite the mess.
-Please don't judge me for the organization of things.
-Judge bizarro universe Neale instead.

src/cd.py

@@ -25,6 +25,7 @@ def scan(state, device):
     )
     discid = p.stdout.strip()
     state["discid"] = discid
+    cddb_id = discid.split()[0]
 
     # Look it up in cddb
     email = os.environ.get("EMAIL") # You should really set this variable, tho
@@ -44,10 +45,9 @@ def scan(state, device):
         for k in ("title", "artist", "genre", "year", "tracks"):
             state[k] = disc[k]
     else:
-        now = time.strftime("%Y-%m-%dT%H%M%S")
         num_tracks = int(discid.split()[1])
-        state["title"] = "Unknown CD - %s" % now
+        state["title"] = "Unknown CD - %s" % cddb_id
-        state["tracks"] = ["Track %02d" % i for i in range(num_tracks)]
+        state["tracks"] = ["Track %02d" % (i+1) for i in range(num_tracks)]
 
 
 def copy(state, device, directory):
@@ -84,9 +84,20 @@ def copy(state, device, directory):
 
 def encode(state, directory):
     track_num = 1
+    total_tracks = len(state["tracks"])
     durations = [int(d) for d in state["discid"].split()[2:-1]]
     total_duration = sum(durations)
     encoded_duration = 0
+    
+    tag_script = io.StringIO()
+    tag_script.write("#! /bin/sh\n")
+    tag_script.write("\n")
+    tag_script.write("ALBUM=%s\n" % state["title"])
+    tag_script.write("ARTIST=%s\n" % state.get("artist", ""))
+    tag_script.write("GENRE=%s\n" % state.get("genre", ""))
+    tag_script.write("YEAR=%s\n" % state.get("year", ""))
+    tag_script.write("\n")
+    
     for track_name in state["tracks"]:
         logging.debug("Encoding track %d (%s)" % (track_num, track_name))
         duration = durations[track_num-1]
@@ -97,8 +108,13 @@ def encode(state, directory):
             "--disptime", "1",
             "--preset", "standard",
             "--tl", state["title"],
-            "--tn", "%d/%d" % (track_num, len(state["tracks"])),
+            "--tn", "%d/%d" % (track_num, total_tracks),
         ]
+        tag_script.write("id3v2")
+        tag_script.write(" --album \"$ALBUM\"")
+        tag_script.write(" --artist \"$ARTIST\"")
+        tag_script.write(" --genre \"$GENRE\"")
+        tag_script.write(" --year \"$YEAR\"")
         if state.get("artist"):
             argv.extend(["--ta", state["artist"]])
         if state.get("genre"):
@@ -107,11 +123,16 @@ def encode(state, directory):
             argv.extend(["--ty", state["year"]])
         if track_name:
             argv.extend(["--tt", track_name])
+            tag_script.write(" --song \"%s\"" % track_name)
             outfn = "%02d - %s.mp3" % (track_num, track_name)
         else:
             outfn = "%02d.mp3" % track_num
         argv.append("track%02d.cdda.wav" % track_num)
         argv.append(outfn)
+        tag_script.write("\\\n    ")
+        tag_script.write(" --track %d/%d" % (track_num, total_tracks))
+        tag_script.write(" \"%s\"\n" % outfn)
+
         p = subprocess.Popen(
             argv,
             cwd = directory,
@@ -125,14 +146,18 @@ def encode(state, directory):
                 p = p.split("%")[0]
                 pct = int(p) / 100
                 yield (encoded_duration + (duration * pct)) / total_duration
-        
+
         encoded_duration += duration
         track_num += 1
 
+    with open(os.path.join(directory, "tag.sh"), "w") as f:
+        f.write(tag_script.getvalue())        
+
 
 def clean(state, directory):
-    pass
+    for fn in os.listdir(directory):
-
+        if fn.endswith(".wav"):
+            os.remove(os.path.join(directory, fn))
 
 if __name__ == "__main__":
     import pprint

src/dvd.py

@@ -43,7 +43,7 @@ def scan(state, device):
         title = lsdvd["provider_id"]
         if title == "$PACKAGE_STRING":
             title = "DVD"
-    now = time.strftime(r"%Y-%m-%dT%H%M%S")
+    now = time.strftime(r"%Y-%m-%dT%H:%M:%S")
     title = "%s %s" % (title, now)
 
     # Go through all the tracks, looking for the largest referenced sector.

src/encoder.py

@@ -12,6 +12,7 @@ import re
 import logging
 import dvd
 import cd
+import traceback
 import worker
 
 class Encoder(worker.Worker):
@@ -24,16 +25,20 @@ class Encoder(worker.Worker):
         while True:
             wait = True
             self.status = {"type": "encoder", "state": "idle"}
-            for fn in glob.glob(self.workdir("*", "state.json")):
+            for fn in glob.glob(self.workdir("*", "sucker.json")):
-                self.encode(os.path.dirname(fn), obj)
+                directory = os.path.dirname(fn)
+                state = self.read_state(directory)
+                try:
+                    self.encode(directory, state)
+                except Exception as e:
+                    logging.error("Error encoding %s: %s" % (directory, e))
+                    logging.error(traceback.format_exc())
                 wait = False
             if wait:
                 time.sleep(12)
 
-    def encode(self, directory, obj):
+    def encode(self, directory, state):
         self.status["state"] = "encoding"
-
-        state = self.read_state(directory)
         self.status["title"] = state["title"]
 
         if state["video"]:
@@ -46,6 +51,7 @@ class Encoder(worker.Worker):
             self.status["complete"] = pct
 
         media.clean(state, directory)
+        self.clear_state(directory)
 
         logging.info("Finished encoding")
 

src/mediahandler.py

@@ -1,6 +0,0 @@
-class MediaHandler:
-    def __init__(self, basedir, state):
-        self.basedir = basedir
-        self.state = state
-
-    def 

src/reader.py

@@ -31,7 +31,7 @@ CDROM_EJECT = 0x5309
 
 class Reader(worker.Worker):
     def __init__(self, device, directory):
-        super().__init__(device)
+        super().__init__(directory)
         self.device = device
         self.status["type"] = "reader"
         self.status["device"] = device
@@ -66,24 +66,22 @@ class Reader(worker.Worker):
                 rv = fcntl.ioctl(self.drive, CDROM_DISC_STATUS)
                 try:
                     if rv == CDS_AUDIO:
-                        self.handle(false)
+                        self.handle(False)
                     elif rv in [CDS_DATA_1, CDS_DATA_2]:
-                        self.handle(true)
+                        self.handle(True)
                     else:
                         logging.info("Can't handle disc type %d" % rv)
                 except Exception as e:
                     logging.error("Error in disc handler: %s" % e)
                     logging.error(traceback.format_exc())
                 self.eject()
-            elif rv in (CDS_TRAY_OPEN, CDS_NO_DISC):
+            elif rv in (CDS_TRAY_OPEN, CDS_NO_DISC, CDS_DRIVE_NOT_READ):
                 time.sleep(3)
             else:
                 logging.info("CDROM_DRIVE_STATUS: %d (%s)" % (rv, CDS_STR[rv]))
                 time.sleep(3)
     
     def eject(self):
-        self.status["state"] = "ejecting"
-
         for i in range(20):
             try:
                 fcntl.ioctl(self.drive, CDROM_LOCKDOOR, 0)
@@ -100,16 +98,18 @@ class Reader(worker.Worker):
         state = {}
         state["video"] = video
         if video:
-            media = cd
-        else:
             media = dvd
+        else:
+            media = cd
 
         media.scan(state, self.device)
         self.status["title"] = state["title"]
         subdir = slugify.slugify(state["title"])
+        workdir = self.workdir(subdir)
+        os.makedirs(workdir, exist_ok=True)
         
         self.status["state"] = "copying"
-        for pct in media.copy(device, self.workdir(subdir)):
+        for pct in media.copy(state, self.device, workdir):
             self.status["complete"] = pct
 
         self.write_state(subdir, state)

src/worker.py

@@ -1,13 +1,13 @@
 import threading 
 import os
 import json
+import logging
 
 class Worker(threading.Thread):
     def __init__(self, directory, **kwargs):
         self.directory = directory
         self.status = {
             "state": "idle",
-            "directory": directory,
         }
         
         kwargs["daemon"] = True
@@ -17,9 +17,16 @@ class Worker(threading.Thread):
         return os.path.join(self.directory, *path)
 
     def write_state(self, subdir, state):
-        with open(self.workdir(subdir, "state.json"), "w") as f:
+        logging.debug("Writing state: %s" % repr(state))
-            json.dump(f, state)
+        statefn = self.workdir(subdir, "sucker.json")
+        newstatefn = statefn + ".new"
+        with open(newstatefn, "w") as f:
+            json.dump(state, f)
+        os.rename(newstatefn, statefn)
 
     def read_state(self, subdir):
-        with open(self.workdir(subdir, "state.json")) as f:
+        with open(self.workdir(subdir, "sucker.json")) as f:
             return json.load(f)
+
+    def clear_state(self, subdir):
+        os.unlink(self.workdir(subdir, "sucker.json"))