1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/mediasource/SubBufferDecoder.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,83 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=8 sts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef MOZILLA_SUBBUFFERDECODER_H_
1.11 +#define MOZILLA_SUBBUFFERDECODER_H_
1.12 +
1.13 +#include "BufferDecoder.h"
1.14 +#include "SourceBufferResource.h"
1.15 +
1.16 +namespace mozilla {
1.17 +
1.18 +class MediaSourceDecoder;
1.19 +
1.20 +class SubBufferDecoder : public BufferDecoder
1.21 +{
1.22 +public:
1.23 + // This class holds a weak pointer to MediaResource. It's the responsibility
1.24 + // of the caller to manage the memory of the MediaResource object.
1.25 + SubBufferDecoder(MediaResource* aResource, MediaSourceDecoder* aParentDecoder)
1.26 + : BufferDecoder(aResource), mParentDecoder(aParentDecoder), mReader(nullptr)
1.27 + {
1.28 + }
1.29 +
1.30 + void SetReader(MediaDecoderReader* aReader)
1.31 + {
1.32 + MOZ_ASSERT(!mReader);
1.33 + mReader = aReader;
1.34 + }
1.35 +
1.36 + MediaDecoderReader* GetReader()
1.37 + {
1.38 + return mReader;
1.39 + }
1.40 +
1.41 + virtual ReentrantMonitor& GetReentrantMonitor() MOZ_OVERRIDE;
1.42 + virtual bool OnStateMachineThread() const MOZ_OVERRIDE;
1.43 + virtual bool OnDecodeThread() const MOZ_OVERRIDE;
1.44 + virtual SourceBufferResource* GetResource() const MOZ_OVERRIDE;
1.45 + virtual void SetMediaDuration(int64_t aDuration) MOZ_OVERRIDE;
1.46 + virtual void UpdateEstimatedMediaDuration(int64_t aDuration) MOZ_OVERRIDE;
1.47 + virtual void SetMediaSeekable(bool aMediaSeekable) MOZ_OVERRIDE;
1.48 + virtual void SetTransportSeekable(bool aTransportSeekable) MOZ_OVERRIDE;
1.49 + virtual layers::ImageContainer* GetImageContainer() MOZ_OVERRIDE;
1.50 + virtual MediaDecoderOwner* GetOwner() MOZ_OVERRIDE;
1.51 +
1.52 + void NotifyDataArrived(const char* aBuffer, uint32_t aLength, int64_t aOffset)
1.53 + {
1.54 + mReader->NotifyDataArrived(aBuffer, aLength, aOffset);
1.55 +
1.56 + // XXX: Params make no sense to parent decoder as it relates to a
1.57 + // specific SubBufferDecoder's data stream. Pass bogus values here to
1.58 + // force parent decoder's state machine to recompute end time for
1.59 + // infinite length media.
1.60 + mParentDecoder->NotifyDataArrived(nullptr, 0, 0);
1.61 + }
1.62 +
1.63 + nsresult GetBuffered(dom::TimeRanges* aBuffered)
1.64 + {
1.65 + // XXX: Need mStartTime (from StateMachine) instead of passing 0.
1.66 + return mReader->GetBuffered(aBuffered, 0);
1.67 + }
1.68 +
1.69 + // Given a time convert it into an approximate byte offset from the
1.70 + // cached data. Returns -1 if no such value is computable.
1.71 + int64_t ConvertToByteOffset(double aTime);
1.72 +
1.73 + int64_t GetMediaDuration() MOZ_OVERRIDE
1.74 + {
1.75 + return mMediaDuration;
1.76 + }
1.77 +
1.78 +private:
1.79 + MediaSourceDecoder* mParentDecoder;
1.80 + nsAutoPtr<MediaDecoderReader> mReader;
1.81 + int64_t mMediaDuration;
1.82 +};
1.83 +
1.84 +} // namespace mozilla
1.85 +
1.86 +#endif /* MOZILLA_SUBBUFFERDECODER_H_ */
