mirror of
https://github.com/LadybirdBrowser/ladybird
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972438c4d7
The way that other classes interact with IncrementallyPopulatedStream is now through a virtual interface MediaStream and MediaStreamCursor. This way, we can have simpler implementations of reading media data that will not require an RB tree and synchronization.
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
/*
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* Copyright (c) 2022-2025, Gregory Bertilson <gregory@ladybird.org>
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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/HashMap.h>
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#include <LibMedia/Demuxer.h>
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#include <LibMedia/Export.h>
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#include <LibMedia/Forward.h>
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#include <LibMedia/IncrementallyPopulatedStream.h>
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#include <LibThreading/Mutex.h>
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#include "Reader.h"
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namespace Media::Matroska {
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class MEDIA_API MatroskaDemuxer final : public Demuxer {
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public:
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static DecoderErrorOr<NonnullRefPtr<MatroskaDemuxer>> from_stream(NonnullRefPtr<MediaStream> const&);
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MatroskaDemuxer(NonnullRefPtr<MediaStream> const& stream, Reader&& reader);
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~MatroskaDemuxer();
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virtual DecoderErrorOr<void> create_context_for_track(Track const&) override;
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virtual DecoderErrorOr<Vector<Track>> get_tracks_for_type(TrackType) override;
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virtual DecoderErrorOr<Optional<Track>> get_preferred_track_for_type(TrackType) override;
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virtual DecoderErrorOr<DemuxerSeekResult> seek_to_most_recent_keyframe(Track const&, AK::Duration timestamp, DemuxerSeekOptions) override;
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virtual DecoderErrorOr<AK::Duration> duration_of_track(Track const&) override;
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virtual DecoderErrorOr<AK::Duration> total_duration() override;
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virtual DecoderErrorOr<CodecID> get_codec_id_for_track(Track const&) override;
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virtual DecoderErrorOr<ReadonlyBytes> get_codec_initialization_data_for_track(Track const&) override;
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virtual DecoderErrorOr<CodedFrame> get_next_sample_for_track(Track const&) override;
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virtual void set_blocking_reads_aborted_for_track(Track const&) override;
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virtual void reset_blocking_reads_aborted_for_track(Track const&) override;
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virtual bool is_read_blocked_for_track(Track const&) override;
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private:
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struct TrackStatus {
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SampleIterator iterator;
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Optional<Block> block;
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Vector<ByteBuffer, 4> frames;
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size_t frame_index { 0 };
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TrackStatus(SampleIterator&& iterator)
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: iterator(iterator)
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{
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}
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};
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TrackStatus& get_track_status(Track const&);
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NonnullRefPtr<MediaStream> m_stream;
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Reader m_reader;
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mutable Threading::Mutex m_track_statuses_mutex;
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HashMap<Track, TrackStatus> m_track_statuses;
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};
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}
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