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33bb32f549
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-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.c" \
-o -iname "*.cc" \
-o -iname "*.idl" \
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}
convert MOZ_OVERRIDE override
convert MOZ_FINAL final
55 lines
1.6 KiB
C++
55 lines
1.6 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 VorbisTrackEncoder_h_
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#define VorbisTrackEncoder_h_
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#include "TrackEncoder.h"
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#include "nsCOMPtr.h"
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#include <vorbis/codec.h>
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namespace mozilla {
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class VorbisTrackEncoder : public AudioTrackEncoder
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{
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public:
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VorbisTrackEncoder();
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virtual ~VorbisTrackEncoder();
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already_AddRefed<TrackMetadataBase> GetMetadata() final override;
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nsresult GetEncodedTrack(EncodedFrameContainer& aData) final override;
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protected:
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/**
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* http://xiph.org/vorbis/doc/libvorbis/vorbis_analysis_buffer.html
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* We use 1024 samples for the write buffer; libvorbis will construct packets
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* with the appropriate duration for the encoding mode internally.
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*/
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int GetPacketDuration() final override {
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return 1024;
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}
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nsresult Init(int aChannels, int aSamplingRate) final override;
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private:
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// Write Xiph-style lacing to aOutput.
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void WriteLacing(nsTArray<uint8_t> *aOutput, int32_t aLacing);
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// Get the encoded data from vorbis encoder and append into aData.
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void GetEncodedFrames(EncodedFrameContainer& aData);
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// vorbis codec members
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// Struct that stores all the static vorbis bitstream settings.
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vorbis_info mVorbisInfo;
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// Central working state for the PCM->packet encoder.
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vorbis_dsp_state mVorbisDsp;
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// Local working space for PCM->packet encode.
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vorbis_block mVorbisBlock;
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};
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}
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#endif
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