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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/media/platforms/agnostic/OpusDecoder.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/media/platforms/agnostic/OpusDecoder.h')
-rw-r--r--dom/media/platforms/agnostic/OpusDecoder.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/dom/media/platforms/agnostic/OpusDecoder.h b/dom/media/platforms/agnostic/OpusDecoder.h
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+++ b/dom/media/platforms/agnostic/OpusDecoder.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(OpusDecoder_h_)
+#define OpusDecoder_h_
+
+#include "PlatformDecoderModule.h"
+
+#include "mozilla/Maybe.h"
+#include "nsAutoPtr.h"
+
+struct OpusMSDecoder;
+
+namespace mozilla {
+
+class OpusParser;
+
+class OpusDataDecoder : public MediaDataDecoder
+{
+public:
+ explicit OpusDataDecoder(const CreateDecoderParams& aParams);
+ ~OpusDataDecoder();
+
+ RefPtr<InitPromise> Init() override;
+ void Input(MediaRawData* aSample) override;
+ void Flush() override;
+ void Drain() override;
+ void Shutdown() override;
+ const char* GetDescriptionName() const override
+ {
+ return "opus audio decoder";
+ }
+
+ // Return true if mimetype is Opus
+ static bool IsOpus(const nsACString& aMimeType);
+
+ // Pack pre-skip/CodecDelay, given in microseconds, into a
+ // MediaByteBuffer. The decoder expects this value to come
+ // from the container (if any) and to precede the OpusHead
+ // block in the CodecSpecificConfig buffer to verify the
+ // values match.
+ static void AppendCodecDelay(MediaByteBuffer* config, uint64_t codecDelayUS);
+
+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;
+
+ // Opus decoder state
+ nsAutoPtr<OpusParser> mOpusParser;
+ OpusMSDecoder* mOpusDecoder;
+
+ uint16_t mSkip; // Samples left to trim before playback.
+ bool mDecodedHeader;
+
+ // Opus padding should only be discarded on the final packet. Once this
+ // is set to true, if the reader attempts to decode any further packets it
+ // will raise an error so we can indicate that the file is invalid.
+ bool mPaddingDiscarded;
+ int64_t mFrames;
+ Maybe<int64_t> mLastFrameTime;
+ uint8_t mMappingTable[MAX_AUDIO_CHANNELS]; // Channel mapping table.
+
+ Atomic<bool> mIsFlushing;
+};
+
+} // namespace mozilla
+#endif