Add parser for FLAC metadata.

[sonitus.git] / src / main / java / net / pterodactylus / sonitus / io / flac / StreamInfo.java

diff --git a/src/main/java/net/pterodactylus/sonitus/io/flac/StreamInfo.java b/src/main/java/net/pterodactylus/sonitus/io/flac/StreamInfo.java
new file mode 100644 (file)
index 0000000..5dadd65
--- /dev/null
+++ b/src/main/java/net/pterodactylus/sonitus/io/flac/StreamInfo.java
@@ -0,0 +1,113 @@
+/*
+ * Sonitus - StreamInfo.java - Copyright © 2013 David Roden
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sonitus.io.flac;
+
+/**
+ * Parser for a {@link BlockType#STREAMINFO} metadata block.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class StreamInfo extends Data {
+
+       /**
+        * Creates a new STREAMINFO block from the given buffer.
+        *
+        * @param content
+        *              The contents of the metadata block
+        */
+       public StreamInfo(byte[] content) {
+               super(content);
+       }
+
+       //
+       // ACCESSORS
+       //
+
+       /**
+        * Returns the minimum block size.
+        *
+        * @return The minimum block size (in samples)
+        */
+       public int minimumBlockSize() {
+               return (int) parseBits(0, 0, 16);
+       }
+
+       /**
+        * Returns the maximum block size.
+        *
+        * @return The maximum block size (in samples)
+        */
+       public int maximumBlockSize() {
+               return (int) parseBits(2, 0, 16);
+       }
+
+       /**
+        * Returns the minimum frame size.
+        *
+        * @return The minimum frame size (in bytes)
+        */
+       public int minimumFrameSize() {
+               return (int) parseBits(4, 0, 24);
+       }
+
+       /**
+        * Returns the maximum frame size.
+        *
+        * @return The maximum frame size (in bytes)
+        */
+       public int maximumFrameSize() {
+               return (int) parseBits(7, 0, 24);
+       }
+
+       /**
+        * Returns the sample rate.
+        *
+        * @return The sample rate (in Hertz)
+        */
+       public int sampleRate() {
+               return (int) parseBits(10, 0, 20);
+       }
+
+       /**
+        * Returns the number of channels.
+        *
+        * @return The number of channels
+        */
+       public int numberOfChannels() {
+               return (int) (parseBits(12, 4, 3) + 1);
+       }
+
+       /**
+        * Returns the number of bits per sample.
+        *
+        * @return The number of bits per sample
+        */
+       public int bitsPerSample() {
+               return (int) (parseBits(12, 7, 5) + 1);
+       }
+
+       /**
+        * Returns the total number of samples.
+        *
+        * @return The total number of samples
+        */
+       public long totalSamples() {
+               return parseBits(13, 4, 36);
+       }
+
+}