1 files changed, 50 insertions, 0 deletions
diff --git a/toolkit/components/mediasniffer/nsMediaSniffer.h b/toolkit/components/mediasniffer/nsMediaSniffer.h
new file mode 100644
index 0000000000..9608e2e643
--- /dev/null
+++ b/toolkit/components/mediasniffer/nsMediaSniffer.h
@@ -0,0 +1,50 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 tw=80 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsMediaSniffer_h
+#define nsMediaSniffer_h
+
+#include "nsIContentSniffer.h"
+#include "mozilla/Attributes.h"
+
+// ed905ba3-c656-480e-934e-6bc35bd36aff
+#define NS_MEDIA_SNIFFER_CID                         \
+  {                                                  \
+    0x3fdd6c28, 0x5b87, 0x4e3e, {                    \
+      0x8b, 0x57, 0x8e, 0x83, 0xc2, 0x3c, 0x1a, 0x6d \
+    }                                                \
+  }
+
+#define NS_MEDIA_SNIFFER_CONTRACTID "@mozilla.org/media/sniffer;1"
+
+#define PATTERN_ENTRY(mask, pattern, contentType)                    \
+  {                                                                  \
+    (const uint8_t*)mask, (const uint8_t*)pattern, sizeof(mask) - 1, \
+        contentType                                                  \
+  }
+
+struct nsMediaSnifferEntry {
+  const uint8_t* mMask;
+  const uint8_t* mPattern;
+  const uint32_t mLength;
+  const char* mContentType;
+};
+
+bool MatchesMP4(const uint8_t* aData, const uint32_t aLength,
+                nsACString& aSniffedType);
+
+class nsMediaSniffer final : public nsIContentSniffer {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICONTENTSNIFFER
+
+ private:
+  ~nsMediaSniffer() = default;
+
+  static nsMediaSnifferEntry sSnifferEntries[];
+};
+
+#endif