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-rw-r--r--dom/media/platforms/wmf/WMFAudioMFTManager.h78
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diff --git a/dom/media/platforms/wmf/WMFAudioMFTManager.h b/dom/media/platforms/wmf/WMFAudioMFTManager.h
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+/* -*- 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(WMFAudioOutputSource_h_)
+#define WMFAudioOutputSource_h_
+
+#include "WMF.h"
+#include "MFTDecoder.h"
+#include "mozilla/RefPtr.h"
+#include "WMFMediaDataDecoder.h"
+
+extern const GUID CLSID_WebmMfVpxDec;
+
+namespace mozilla {
+
+class WMFAudioMFTManager : public MFTManager {
+public:
+ WMFAudioMFTManager(const AudioInfo& aConfig);
+ ~WMFAudioMFTManager();
+
+ bool Init();
+
+ HRESULT Input(MediaRawData* aSample) override;
+
+ // Note WMF's AAC decoder sometimes output negatively timestamped samples,
+ // presumably they're the preroll samples, and we strip them. We may return
+ // a null aOutput in this case.
+ HRESULT Output(int64_t aStreamOffset,
+ RefPtr<MediaData>& aOutput) override;
+
+ void Shutdown() override;
+
+ TrackInfo::TrackType GetType() override {
+ return TrackInfo::kAudioTrack;
+ }
+
+ const char* GetDescriptionName() const override
+ {
+ return "wmf audio decoder";
+ }
+
+private:
+
+ HRESULT UpdateOutputType();
+
+ uint32_t mAudioChannels;
+ uint32_t mAudioRate;
+ nsTArray<BYTE> mUserData;
+
+ // The offset, at which playback started since the
+ // last discontinuity.
+ media::TimeUnit mAudioTimeOffset;
+ // The number of audio frames that we've played since the last
+ // discontinuity.
+ int64_t mAudioFrameSum;
+
+ enum StreamType {
+ Unknown,
+ AAC,
+ MP3
+ };
+ StreamType mStreamType;
+
+ const GUID& GetMFTGUID();
+ const GUID& GetMediaSubtypeGUID();
+
+ // True if we need to re-initialize mAudioTimeOffset and mAudioFrameSum
+ // from the next audio packet we decode. This happens after a seek, since
+ // WMF doesn't mark a stream as having a discontinuity after a seek(0).
+ bool mMustRecaptureAudioPosition;
+};
+
+} // namespace mozilla
+
+#endif // WMFAudioOutputSource_h_