patterns: Added Ogg pattern

README.md

@@ -35,6 +35,7 @@ Hex patterns, include patterns and magic files for the use with the ImHex Hex Ed
 | File System | | `patterns/fs.hexpat` | Drive File System | 
 | Bencode | `application/x-bittorrent` | `patterns/bencode.hexpat` | Bencode encoding, used by Torrent files | 
 | Protobuf | | `patterns/protobuf.hexpat` | Google Protobuf encoding | 
+| Ogg | | `patterns/ogg.hexpat` | Ogg Audio format | 
 
 ### Scripts
 

patterns/ogg.hexpat

@@ -0,0 +1,29 @@
+#pragma MIME audio/ogg
+
+#include <std/core.pat>
+#include <std/mem.pat>
+
+bitfield HeaderType {
+	Continuation	: 1;
+	BeginOfStream	: 1;
+	EndOfStream		: 1;
+};
+
+struct SegmentData {
+	u8 data[parent.segmentTable[std::core::array_index()]];
+};
+
+struct Ogg {
+	char capturePattern[4];
+	u8 version;
+	HeaderType headerType;
+	u64 granulePosition;
+	u32 bitstreamSerialNumber;
+	u32 pageSequenceNumber;
+	u32 checksum;
+	u8 pageSegments;
+	u8 segmentTable[pageSegments];
+	SegmentData data[pageSegments];
+};
+
+Ogg ogg[while(!std::mem::eof())] @ 0x00;