* Correctly detect Enhanced CDs, and take their extra lead gap into account.

* This fixes bug #3025.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41290 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/file_systems/cdda/cdda.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2007-2008, Axel Dörfler, [email protected].
+ * Copyright 2007-2011, Axel Dörfler, [email protected].
  * Distributed under the terms of the MIT License.
  */
 #ifndef CDDA_H
@@ -12,6 +12,7 @@
 static const uint32 kFramesPerSecond = 75;
 static const uint32 kFramesPerMinute = kFramesPerSecond * 60;
 static const uint32 kFrameSize = 2352;
+static const uint32 kDataTrackLeadGap = 11400;
 static const uint8 kMaxTracks = 0x63;
 
 struct cdtext {

src/add-ons/kernel/file_systems/cdda/kernel_interface.cpp

@@ -653,10 +653,10 @@ Volume::Mount(const char* device)
 		// We do not seem to have an attribute file so this is probably the
 		// first time this CD is inserted. In this case, try to read CD-Text
 		// data.
-		if (read_cdtext(fDevice, text) != B_OK)
-			dprintf("CDDA: no CD-Text found.\n");
-		else
+		if (read_cdtext(fDevice, text) == B_OK)
 			doLookup = false;
+		else
+			TRACE(("CDDA: no CD-Text found.\n"));
 	} else {
 		doLookup = false;
 	}
@@ -677,6 +677,12 @@ Volume::Mount(const char* device)
 			+ next.second * kFramesPerSecond + next.frame
 			- startFrame;
 
+		// Adjust length of the last audio track according to the Blue Book
+		// specification in case of an Enhanced CD
+		if (i + 1 < trackCount && is_data_track(toc->tracks[i + 1])
+			&& !is_data_track(toc->tracks[i]))
+			frames -= kDataTrackLeadGap;
+
 		totalFrames += frames;
 
 		if (is_data_track(toc->tracks[i]))