diff options
Diffstat (limited to 'dom/media/platforms/agnostic/VorbisDecoder.h')
-rw-r--r-- | dom/media/platforms/agnostic/VorbisDecoder.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/dom/media/platforms/agnostic/VorbisDecoder.h b/dom/media/platforms/agnostic/VorbisDecoder.h new file mode 100644 index 0000000000..ce61ccdcad --- /dev/null +++ b/dom/media/platforms/agnostic/VorbisDecoder.h @@ -0,0 +1,66 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et cindent: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ +#if !defined(VorbisDecoder_h_) +# define VorbisDecoder_h_ + +# include "AudioConverter.h" +# include "PlatformDecoderModule.h" +# include "mozilla/Maybe.h" + +# ifdef MOZ_TREMOR +# include "tremor/ivorbiscodec.h" +# else +# include "vorbis/codec.h" +# endif + +namespace mozilla { + +DDLoggedTypeDeclNameAndBase(VorbisDataDecoder, MediaDataDecoder); + +class VorbisDataDecoder final + : public MediaDataDecoder, + public DecoderDoctorLifeLogger<VorbisDataDecoder> { + public: + NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VorbisDataDecoder, final); + + explicit VorbisDataDecoder(const CreateDecoderParams& aParams); + + RefPtr<InitPromise> Init() override; + RefPtr<DecodePromise> Decode(MediaRawData* aSample) override; + RefPtr<DecodePromise> Drain() override; + RefPtr<FlushPromise> Flush() override; + RefPtr<ShutdownPromise> Shutdown() override; + nsCString GetDescriptionName() const override { + return "vorbis audio decoder"_ns; + } + nsCString GetCodecName() const override { return "vorbis"_ns; } + + // Return true if mimetype is Vorbis + static bool IsVorbis(const nsACString& aMimeType); + static const AudioConfig::Channel* VorbisLayout(uint32_t aChannels); + + private: + ~VorbisDataDecoder(); + + nsresult DecodeHeader(const unsigned char* aData, size_t aLength); + + const AudioInfo mInfo; + nsCOMPtr<nsISerialEventTarget> mThread; + + // Vorbis decoder state + vorbis_info mVorbisInfo; + vorbis_comment mVorbisComment; + vorbis_dsp_state mVorbisDsp; + vorbis_block mVorbisBlock; + + int64_t mPacketCount; + int64_t mFrames; + Maybe<int64_t> mLastFrameTime; + UniquePtr<AudioConverter> mAudioConverter; +}; + +} // namespace mozilla +#endif |