1 files changed, 66 insertions, 0 deletions
diff --git a/dom/media/platforms/agnostic/VorbisDecoder.h b/dom/media/platforms/agnostic/VorbisDecoder.h
new file mode 100644
index 000000000..0ed7bb645
--- /dev/null
+++ b/dom/media/platforms/agnostic/VorbisDecoder.h
@@ -0,0 +1,66 @@
+/* -*- 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/. */
+#if !defined(VorbisDecoder_h_)
+#define VorbisDecoder_h_
+
+#include "PlatformDecoderModule.h"
+#include "mozilla/Maybe.h"
+#include "AudioConverter.h"
+
+#ifdef MOZ_TREMOR
+#include "tremor/ivorbiscodec.h"
+#else
+#include "vorbis/codec.h"
+#endif
+
+namespace mozilla {
+
+class VorbisDataDecoder : public MediaDataDecoder
+{
+public:
+  explicit VorbisDataDecoder(const CreateDecoderParams& aParams);
+  ~VorbisDataDecoder();
+
+  RefPtr<InitPromise> Init() override;
+  void Input(MediaRawData* aSample) override;
+  void Flush() override;
+  void Drain() override;
+  void Shutdown() override;
+  const char* GetDescriptionName() const override
+  {
+    return "vorbis audio decoder";
+  }
+
+  // Return true if mimetype is Vorbis
+  static bool IsVorbis(const nsACString& aMimeType);
+  static const AudioConfig::Channel* VorbisLayout(uint32_t aChannels);
+
+private:
+  nsresult DecodeHeader(const unsigned char* aData, size_t aLength);
+
+  void ProcessDecode(MediaRawData* aSample);
+  MediaResult DoDecode(MediaRawData* aSample);
+  void ProcessDrain();
+
+  const AudioInfo& mInfo;
+  const RefPtr<TaskQueue> mTaskQueue;
+  MediaDataDecoderCallback* mCallback;
+
+  // Vorbis decoder state
+  vorbis_info mVorbisInfo;
+  vorbis_comment mVorbisComment;
+  vorbis_dsp_state mVorbisDsp;
+  vorbis_block mVorbisBlock;
+
+  int64_t mPacketCount;
+  int64_t mFrames;
+  Maybe<int64_t> mLastFrameTime;
+  UniquePtr<AudioConverter> mAudioConverter;
+  Atomic<bool> mIsFlushing;
+};
+
+} // namespace mozilla
+#endif