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39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
/*
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* Copyright (c) 2022, Gregory Bertilson <zaggy1024@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/NonnullOwnPtr.h>
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#include <LibCore/EventReceiver.h>
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#include "CodecID.h"
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#include "DecoderError.h"
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#include "Sample.h"
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#include "Track.h"
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namespace Media {
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class Demuxer {
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public:
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virtual ~Demuxer() = default;
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virtual DecoderErrorOr<Vector<Track>> get_tracks_for_type(TrackType type) = 0;
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virtual DecoderErrorOr<Sample> get_next_sample_for_track(Track track) = 0;
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virtual DecoderErrorOr<CodecID> get_codec_id_for_track(Track track) = 0;
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virtual DecoderErrorOr<ReadonlyBytes> get_codec_initialization_data_for_track(Track track) = 0;
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// Returns the timestamp of the keyframe that was seeked to.
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// The value is `Optional` to allow the demuxer to decide not to seek so that it can keep its position
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// in the case that the timestamp is closer to the current time than the nearest keyframe.
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virtual DecoderErrorOr<Optional<AK::Duration>> seek_to_most_recent_keyframe(Track track, AK::Duration timestamp, Optional<AK::Duration> earliest_available_sample = OptionalNone()) = 0;
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virtual DecoderErrorOr<AK::Duration> duration() = 0;
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};
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}
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