88 lines
2.3 KiB
C++
88 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef ACCURATE_SEEK_TASK_H
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#define ACCURATE_SEEK_TASK_H
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#include "SeekTask.h"
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#include "MediaDecoderReader.h"
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#include "SeekJob.h"
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namespace mozilla {
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class AccurateSeekTask final : public SeekTask {
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public:
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AccurateSeekTask(const void* aDecoderID,
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AbstractThread* aThread,
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MediaDecoderReaderWrapper* aReader,
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const SeekTarget& aTarget,
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const MediaInfo& aInfo,
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const media::TimeUnit& aEnd,
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int64_t aCurrentMediaTime);
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void Discard() override;
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RefPtr<SeekTaskPromise> Seek(const media::TimeUnit& aDuration) override;
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bool NeedToResetMDSM() const override;
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private:
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~AccurateSeekTask();
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void RequestVideoData();
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void RequestAudioData();
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nsresult DropAudioUpToSeekTarget(MediaData* aSample);
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nsresult DropVideoUpToSeekTarget(MediaData* aSample);
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void MaybeFinishSeek();
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void OnSeekResolved(media::TimeUnit);
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void OnSeekRejected(nsresult aResult);
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void OnAudioDecoded(MediaData* aAudioSample);
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void OnVideoDecoded(MediaData* aVideoSample);
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void OnNotDecoded(MediaData::Type, const MediaResult&);
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void SetCallbacks();
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void CancelCallbacks();
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void AdjustFastSeekIfNeeded(MediaData* aSample);
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/*
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* Internal state.
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*/
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const media::TimeUnit mCurrentTimeBeforeSeek;
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const uint32_t mAudioRate; // Audio sample rate.
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bool mDoneAudioSeeking;
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bool mDoneVideoSeeking;
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// This temporarily stores the first frame we decode after we seek.
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// This is so that if we hit end of stream while we're decoding to reach
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// the seek target, we will still have a frame that we can display as the
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// last frame in the media.
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RefPtr<MediaData> mFirstVideoFrameAfterSeek;
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/*
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* Track the current seek promise made by the reader.
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*/
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MozPromiseRequestHolder<MediaDecoderReader::SeekPromise> mSeekRequest;
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MediaEventListener mAudioCallback;
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MediaEventListener mVideoCallback;
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MediaEventListener mAudioWaitCallback;
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MediaEventListener mVideoWaitCallback;
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};
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} // namespace mozilla
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#endif /* ACCURATE_SEEK_TASK_H */
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