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76 lines
2.2 KiB
C++
76 lines
2.2 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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{
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public:
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nsTArray<uint8_t> mData;
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int32_t mChannels;
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int32_t mBitDepth;
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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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{
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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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int32_t mEncodedFrameRate;
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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 thread.
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*/
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class WebMWriter : public ContainerWriter
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{
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public:
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// aTrackTypes indicate this muxer should multiplex into Video only or A/V foramt.
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// Run in MediaRecorder thread
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explicit WebMWriter(uint32_t aTrackTypes);
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virtual ~WebMWriter();
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// WriteEncodedTrack inserts raw packets into WebM stream.
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nsresult WriteEncodedTrack(const EncodedFrameContainer &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(TrackMetadataBase* aMetadata) override;
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private:
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nsAutoPtr<EbmlComposer> mEbmlComposer;
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// Indicate what kind of meta data needed in the writer.
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// If this value become 0, it means writer can start to generate header.
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uint8_t mMetadataRequiredFlag;
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};
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} // namespace mozilla
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#endif
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