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/* 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 INDEX_H_
#define INDEX_H_
#include "MediaData.h"
#include "MediaResource.h"
#include "TimeUnits.h"
#include "mp4_demuxer/MoofParser.h"
#include "mp4_demuxer/Interval.h"
#include "mp4_demuxer/Stream.h"
#include "nsISupportsImpl.h"
template<class T> class nsAutoPtr;
namespace mp4_demuxer
{
class Index;
typedef int64_t Microseconds;
class SampleIterator
{
public:
explicit SampleIterator(Index* aIndex);
~SampleIterator();
already_AddRefed<mozilla::MediaRawData> GetNext();
void Seek(Microseconds aTime);
Microseconds GetNextKeyframeTime();
private:
Sample* Get();
CencSampleEncryptionInfoEntry* GetSampleEncryptionEntry();
void Next();
RefPtr<Index> mIndex;
friend class Index;
size_t mCurrentMoof;
size_t mCurrentSample;
};
class Index
{
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(Index)
struct Indice
{
uint64_t start_offset;
uint64_t end_offset;
uint64_t start_composition;
uint64_t end_composition;
uint64_t start_decode;
bool sync;
};
struct MP4DataOffset
{
MP4DataOffset(uint32_t aIndex, int64_t aStartOffset)
: mIndex(aIndex)
, mStartOffset(aStartOffset)
, mEndOffset(0)
{}
bool operator==(int64_t aStartOffset) const {
return mStartOffset == aStartOffset;
}
bool operator!=(int64_t aStartOffset) const {
return mStartOffset != aStartOffset;
}
bool operator<(int64_t aStartOffset) const {
return mStartOffset < aStartOffset;
}
struct EndOffsetComparator {
bool Equals(const MP4DataOffset& a, const int64_t& b) const {
return a.mEndOffset == b;
}
bool LessThan(const MP4DataOffset& a, const int64_t& b) const {
return a.mEndOffset < b;
}
};
uint32_t mIndex;
int64_t mStartOffset;
int64_t mEndOffset;
Interval<Microseconds> mTime;
};
Index(const nsTArray<Indice>& aIndex,
Stream* aSource,
uint32_t aTrackId,
bool aIsAudio);
void UpdateMoofIndex(const mozilla::MediaByteRangeSet& aByteRanges,
bool aCanEvict);
void UpdateMoofIndex(const mozilla::MediaByteRangeSet& aByteRanges);
Microseconds GetEndCompositionIfBuffered(
const mozilla::MediaByteRangeSet& aByteRanges);
mozilla::media::TimeIntervals ConvertByteRangesToTimeRanges(
const mozilla::MediaByteRangeSet& aByteRanges);
uint64_t GetEvictionOffset(Microseconds aTime);
bool IsFragmented() { return mMoofParser; }
friend class SampleIterator;
private:
~Index();
void RegisterIterator(SampleIterator* aIterator);
void UnregisterIterator(SampleIterator* aIterator);
Stream* mSource;
FallibleTArray<Sample> mIndex;
FallibleTArray<MP4DataOffset> mDataOffset;
nsAutoPtr<MoofParser> mMoofParser;
nsTArray<SampleIterator*> mIterators;
// ConvertByteRangesToTimeRanges cache
mozilla::MediaByteRangeSet mLastCachedRanges;
mozilla::media::TimeIntervals mLastBufferedRanges;
bool mIsAudio;
};
}
#endif
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