Add experimental overread support (lead-out)

thomasvs/morituri#137

morituri/common/program.py

@@ -566,7 +566,7 @@ class Program(log.Loggable):
         return ret
 
     def ripTrack(self, runner, trackResult, offset, device, profile, taglist,
-        what=None):
+        overread, what=None):
         """
         Ripping the track may change the track's filename as stored in
         trackResult.
@@ -590,7 +590,7 @@ class Program(log.Loggable):
             what='track %d' % (trackResult.number, )
 
         t = cdparanoia.ReadVerifyTrackTask(trackResult.filename,
-            self.result.table, start, stop,
+            self.result.table, start, stop, overread,
             offset=offset,
             device=device,
             profile=profile,

morituri/program/cdparanoia.py

@@ -216,8 +216,8 @@ class ReadTrackTask(log.Loggable, task.Task):
 
     _MAXERROR = 100 # number of errors detected by parser
 
-    def __init__(self, path, table, start, stop, offset=0, device=None,
-        action="Reading", what="track"):
+    def __init__(self, path, table, start, stop, overread, offset=0,
+        device=None, action="Reading", what="track"):
         """
         Read the given track.
 
@@ -248,6 +248,7 @@ class ReadTrackTask(log.Loggable, task.Task):
         self._parser = ProgressParser(start, stop)
         self._device = device
         self._start_time = None
+        self._overread = overread
 
         self._buffer = "" # accumulate characters
         self._errors = []
@@ -278,8 +279,12 @@ class ReadTrackTask(log.Loggable, task.Task):
             stopTrack, stopOffset)
 
         bufsize = 1024
-        argv = ["cdparanoia", "--stderr-progress",
-            "--sample-offset=%d" % self._offset, ]
+        if self._overread:
+            argv = ["cdparanoia", "--stderr-progress",
+                "--sample-offset=%d" % self._offset, "--force-overread", ]
+        else:
+            argv = ["cdparanoia", "--stderr-progress",
+                "--sample-offset=%d" % self._offset, ]
         if self._device:
             argv.extend(["--force-cdrom-device", self._device, ])
         argv.extend(["%d[%s]-%d[%s]" % (
@@ -422,8 +427,8 @@ class ReadVerifyTrackTask(log.Loggable, task.MultiSeparateTask):
     _tmpwavpath = None
     _tmppath = None
 
-    def __init__(self, path, table, start, stop, offset=0, device=None,
-                 profile=None, taglist=None, what="track"):
+    def __init__(self, path, table, start, stop, overread, offset=0,
+                 device=None, profile=None, taglist=None, what="track"):
         """
         @param path:    where to store the ripped track
         @type  path:    str
@@ -459,10 +464,10 @@ class ReadVerifyTrackTask(log.Loggable, task.MultiSeparateTask):
 
         self.tasks = []
         self.tasks.append(
-            ReadTrackTask(tmppath, table, start, stop,
+            ReadTrackTask(tmppath, table, start, stop, overread,
                 offset=offset, device=device, what=what))
         self.tasks.append(checksum.CRC32Task(tmppath))
-        t = ReadTrackTask(tmppath, table, start, stop,
+        t = ReadTrackTask(tmppath, table, start, stop, overread,
             offset=offset, device=device, action="Verifying", what=what)
         self.tasks.append(t)
         self.tasks.append(checksum.CRC32Task(tmppath))

morituri/result/logger.py

@@ -69,6 +69,12 @@ class MorituriLogger(result.Logger):
 
         lines.append("Read offset correction: %d" %
             ripResult.offset)
+        overread = "Unknown"
+        if ripResult.overread is True:
+            overread = "Yes (Lead-Out)"
+        if ripResult.overread is False:
+            overread = "No"
+        lines.append("Overread: %s" % overread)
         lines.append("")
 
         # toc

morituri/result/result.py

@@ -93,6 +93,7 @@ class RipResult:
     """
 
     offset = 0
+    overread = None
     table = None
     artist = None
     title = None

morituri/rip/cd.py

@@ -204,6 +204,13 @@ Log files will log the path to tracks relative to this directory.
         self.parser.add_option('-o', '--offset',
             action="store", dest="offset",
             help="sample read offset (defaults to configured value, or 0)")
+        self.parser.add_option('-x', '--force-overread',
+            action="store_true", dest="overread",
+            help="Force overreading into the lead-out portion of the disc. "
+                "Works only if the patched cdparanoia package is installed "
+                "and the drive supports this feature. "
+                "The default value is: %default",
+            default=False)
         self.parser.add_option('-O', '--output-directory',
             action="store", dest="output_directory",
             help="output directory; will be included in file paths in result "
@@ -282,6 +289,7 @@ Install pycdio and run 'rip offset find' to detect your drive's offset.
         self.program.setWorkingDirectory(self.options.working_directory)
         self.program.outdir = self.options.output_directory.decode('utf-8')
         self.program.result.offset = int(self.options.offset)
+        self.program.result.overread = self.options.overread
 
         ### write disc files
         disambiguate = False
@@ -378,6 +386,7 @@ Install pycdio and run 'rip offset find' to detect your drive's offset.
                             device=self.parentCommand.options.device,
                             profile=profile,
                             taglist=self.program.getTagList(number),
+                            overread=self.options.overread,
                             what='track %d of %d%s' % (
                                 number, len(self.itable.tracks), extra))
                         break