зеркало из https://github.com/mozilla/gecko-dev.git
70 строки
2.0 KiB
C++
70 строки
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef WebMWriter_h_
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#define WebMWriter_h_
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#include "ContainerWriter.h"
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namespace mozilla {
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class EbmlComposer;
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// Vorbis meta data structure
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class VorbisMetadata : public TrackMetadataBase {
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public:
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nsTArray<uint8_t> mData;
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int32_t mChannels;
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float mSamplingFrequency;
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MetadataKind GetKind() const override { return METADATA_VORBIS; }
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};
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// VP8 meta data structure
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class VP8Metadata : public TrackMetadataBase {
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public:
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int32_t mWidth;
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int32_t mHeight;
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int32_t mDisplayWidth;
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int32_t mDisplayHeight;
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MetadataKind GetKind() const override { return METADATA_VP8; }
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};
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/**
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* WebM writer helper
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* This class accepts encoder to set audio or video meta data or
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* encoded data to ebml Composer, and get muxing data through GetContainerData.
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* The ctor/dtor run in the MediaRecorder thread, others run in MediaEncoder
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* thread.
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*/
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class WebMWriter : public ContainerWriter {
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public:
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// Run in MediaRecorder thread
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WebMWriter();
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virtual ~WebMWriter();
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// WriteEncodedTrack inserts raw packets into WebM stream. Does not accept
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// any flags: any specified will be ignored. Writing is finalized via
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// flushing via GetContainerData().
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nsresult WriteEncodedTrack(const nsTArray<RefPtr<EncodedFrame>>& aData,
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uint32_t aFlags = 0) override;
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// GetContainerData outputs multiplexing data.
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// aFlags indicates the muxer should enter into finished stage and flush out
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// queue data.
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nsresult GetContainerData(nsTArray<nsTArray<uint8_t>>* aOutputBufs,
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uint32_t aFlags = 0) override;
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// Assign metadata into muxer
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nsresult SetMetadata(
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const nsTArray<RefPtr<TrackMetadataBase>>& aMetadata) override;
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private:
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UniquePtr<EbmlComposer> mEbmlComposer;
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};
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} // namespace mozilla
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#endif
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