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-rw-r--r--dom/media/ogg/OggWriter.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/dom/media/ogg/OggWriter.h b/dom/media/ogg/OggWriter.h
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+++ b/dom/media/ogg/OggWriter.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
+/* 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 OggWriter_h_
+#define OggWriter_h_
+
+#include "ContainerWriter.h"
+#include "OpusTrackEncoder.h"
+#include <ogg/ogg.h>
+
+namespace mozilla {
+/**
+ * WriteEncodedTrack inserts raw packets into Ogg stream (ogg_stream_state), and
+ * GetContainerData outputs an ogg_page when enough packets have been written
+ * to the Ogg stream.
+ * For more details, please reference:
+ * http://www.xiph.org/ogg/doc/libogg/encoding.html
+ */
+class OggWriter : public ContainerWriter {
+ public:
+ OggWriter();
+ ~OggWriter();
+
+ // Write frames into the ogg container. aFlags should be set to END_OF_STREAM
+ // for the final set of frames.
+ nsresult WriteEncodedTrack(const nsTArray<RefPtr<EncodedFrame>>& aData,
+ uint32_t aFlags = 0) override;
+
+ nsresult GetContainerData(nsTArray<nsTArray<uint8_t>>* aOutputBufs,
+ uint32_t aFlags = 0) override;
+
+ // Check metadata type integrity and reject unacceptable track encoder.
+ nsresult SetMetadata(
+ const nsTArray<RefPtr<TrackMetadataBase>>& aMetadata) override;
+
+ private:
+ nsresult Init();
+
+ nsresult WriteEncodedData(const nsTArray<uint8_t>& aBuffer, int aDuration,
+ uint32_t aFlags = 0);
+
+ void ProduceOggPage(nsTArray<nsTArray<uint8_t>>* aOutputBufs);
+ // Store the Medatata from track encoder
+ RefPtr<OpusMetadata> mMetadata;
+
+ ogg_stream_state mOggStreamState;
+ ogg_page mOggPage;
+ ogg_packet mPacket;
+};
+
+} // namespace mozilla
+
+#endif