1 files changed, 45 insertions, 0 deletions
diff --git a/dom/media/platforms/ffmpeg/FFmpegRuntimeLinker.h b/dom/media/platforms/ffmpeg/FFmpegRuntimeLinker.h
new file mode 100644
index 0000000000..737db75f85
--- /dev/null
+++ b/dom/media/platforms/ffmpeg/FFmpegRuntimeLinker.h
@@ -0,0 +1,45 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 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 __FFmpegRuntimeLinker_h__
+#define __FFmpegRuntimeLinker_h__
+
+#include "PlatformDecoderModule.h"
+
+namespace mozilla {
+
+class FFmpegRuntimeLinker {
+ public:
+  static bool Init();
+  static already_AddRefed<PlatformDecoderModule> Create();
+  enum LinkStatus {
+    LinkStatus_INIT = 0,   // Never been linked.
+    LinkStatus_SUCCEEDED,  // Found a usable library.
+    // The following error statuses are sorted from most to least preferred
+    // (i.e., if more than one happens, the top one is chosen.)
+    LinkStatus_INVALID_FFMPEG_CANDIDATE,  // Found ffmpeg with unexpected
+                                          // contents.
+    LinkStatus_UNUSABLE_LIBAV57,         // Found LibAV 57, which we cannot use.
+    LinkStatus_INVALID_LIBAV_CANDIDATE,  // Found libav with unexpected
+                                         // contents.
+    LinkStatus_OBSOLETE_FFMPEG,
+    LinkStatus_OBSOLETE_LIBAV,
+    LinkStatus_INVALID_CANDIDATE,  // Found some lib with unexpected contents.
+    LinkStatus_NOT_FOUND,  // Haven't found any library with an expected name.
+  };
+  static LinkStatus LinkStatusCode() { return sLinkStatus; }
+  static const char* LinkStatusString();
+  // Library name to which the sLinkStatus applies, or "" if not applicable.
+  static const char* LinkStatusLibraryName() { return sLinkStatusLibraryName; }
+
+ private:
+  static LinkStatus sLinkStatus;
+  static const char* sLinkStatusLibraryName;
+};
+
+}  // namespace mozilla
+
+#endif  // __FFmpegRuntimeLinker_h__