gecko/dom/media/fmp4/MP4Demuxer.h
2015-07-16 14:31:52 +10:00

109 lines
3.2 KiB
C++

/* -*- 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(MP4Demuxer_h_)
#define MP4Demuxer_h_
#include "mozilla/Maybe.h"
#include "mozilla/Monitor.h"
#include "MediaDataDemuxer.h"
#include "MediaResource.h"
namespace mp4_demuxer {
class Index;
class MP4Metadata;
class ResourceStream;
class SampleIterator;
} // namespace mp4_demuxer
namespace mozilla {
class MP4TrackDemuxer;
class MP4Demuxer : public MediaDataDemuxer
{
public:
explicit MP4Demuxer(MediaResource* aResource);
virtual nsRefPtr<InitPromise> Init() override;
virtual already_AddRefed<MediaDataDemuxer> Clone() const override;
virtual bool HasTrackType(TrackInfo::TrackType aType) const override;
virtual uint32_t GetNumberTracks(TrackInfo::TrackType aType) const override;
virtual already_AddRefed<MediaTrackDemuxer> GetTrackDemuxer(TrackInfo::TrackType aType,
uint32_t aTrackNumber) override;
virtual bool IsSeekable() const override;
virtual UniquePtr<EncryptionInfo> GetCrypto() override;
virtual void NotifyDataArrived(uint32_t aLength, int64_t aOffset) override;
virtual void NotifyDataRemoved() override;
private:
friend class MP4TrackDemuxer;
nsRefPtr<MediaResource> mResource;
nsRefPtr<mp4_demuxer::ResourceStream> mStream;
nsRefPtr<MediaByteBuffer> mInitData;
UniquePtr<mp4_demuxer::MP4Metadata> mMetadata;
nsTArray<nsRefPtr<MP4TrackDemuxer>> mDemuxers;
};
class MP4TrackDemuxer : public MediaTrackDemuxer
{
public:
MP4TrackDemuxer(MP4Demuxer* aParent,
TrackInfo::TrackType aType,
uint32_t aTrackNumber);
virtual UniquePtr<TrackInfo> GetInfo() const override;
virtual nsRefPtr<SeekPromise> Seek(media::TimeUnit aTime) override;
virtual nsRefPtr<SamplesPromise> GetSamples(int32_t aNumSamples = 1) override;
virtual void Reset() override;
virtual nsresult GetNextRandomAccessPoint(media::TimeUnit* aTime) override;
nsRefPtr<SkipAccessPointPromise> SkipToNextRandomAccessPoint(media::TimeUnit aTimeThreshold) override;
virtual media::TimeIntervals GetBuffered() override;
virtual int64_t GetEvictionOffset(media::TimeUnit aTime) override;
virtual void BreakCycles() override;
private:
friend class MP4Demuxer;
void NotifyDataArrived();
void UpdateSamples(nsTArray<nsRefPtr<MediaRawData>>& aSamples);
void EnsureUpToDateIndex();
void SetNextKeyFrameTime();
nsRefPtr<MP4Demuxer> mParent;
nsRefPtr<mp4_demuxer::Index> mIndex;
UniquePtr<mp4_demuxer::SampleIterator> mIterator;
UniquePtr<TrackInfo> mInfo;
nsRefPtr<mp4_demuxer::ResourceStream> mStream;
Maybe<media::TimeUnit> mNextKeyframeTime;
// Queued samples extracted by the demuxer, but not yet returned.
nsRefPtr<MediaRawData> mQueuedSample;
bool mNeedReIndex;
bool mNeedSPSForTelemetry;
// We do not actually need a monitor, however MoofParser will assert
// if a monitor isn't held.
Monitor mMonitor;
};
} // namespace mozilla
#endif