content/media/wmf/WMFReader.h@97036ab72558 (annotated)
content/media/wmf/WMFReader.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* vim:set ts=2 sw=2 sts=2 et cindent: */ |
| michael@0 | 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | #if !defined(WMFReader_h_) |
| michael@0 | 7 | #define WMFReader_h_ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "WMF.h" |
| michael@0 | 10 | #include "MediaDecoderReader.h" |
| michael@0 | 11 | #include "nsAutoPtr.h" |
| michael@0 | 12 | #include "mozilla/RefPtr.h" |
| michael@0 | 13 | #include "nsRect.h" |
| michael@0 | 14 | |
| michael@0 | 15 | namespace mozilla { |
| michael@0 | 16 | |
| michael@0 | 17 | class WMFByteStream; |
| michael@0 | 18 | class WMFSourceReaderCallback; |
| michael@0 | 19 | class DXVA2Manager; |
| michael@0 | 20 | |
| michael@0 | 21 | namespace dom { |
| michael@0 | 22 | class TimeRanges; |
| michael@0 | 23 | } |
| michael@0 | 24 | |
| michael@0 | 25 | // Decoder backend for reading H.264/AAC in MP4/M4A, and MP3 files using |
| michael@0 | 26 | // Windows Media Foundation. |
| michael@0 | 27 | class WMFReader : public MediaDecoderReader |
| michael@0 | 28 | { |
| michael@0 | 29 | public: |
| michael@0 | 30 | WMFReader(AbstractMediaDecoder* aDecoder); |
| michael@0 | 31 | |
| michael@0 | 32 | virtual ~WMFReader(); |
| michael@0 | 33 | |
| michael@0 | 34 | nsresult Init(MediaDecoderReader* aCloneDonor) MOZ_OVERRIDE; |
| michael@0 | 35 | |
| michael@0 | 36 | bool DecodeAudioData() MOZ_OVERRIDE; |
| michael@0 | 37 | bool DecodeVideoFrame(bool &aKeyframeSkip, |
| michael@0 | 38 | int64_t aTimeThreshold) MOZ_OVERRIDE; |
| michael@0 | 39 | |
| michael@0 | 40 | bool HasAudio() MOZ_OVERRIDE; |
| michael@0 | 41 | bool HasVideo() MOZ_OVERRIDE; |
| michael@0 | 42 | |
| michael@0 | 43 | nsresult ReadMetadata(MediaInfo* aInfo, |
| michael@0 | 44 | MetadataTags** aTags) MOZ_OVERRIDE; |
| michael@0 | 45 | |
| michael@0 | 46 | nsresult Seek(int64_t aTime, |
| michael@0 | 47 | int64_t aStartTime, |
| michael@0 | 48 | int64_t aEndTime, |
| michael@0 | 49 | int64_t aCurrentTime) MOZ_OVERRIDE; |
| michael@0 | 50 | private: |
| michael@0 | 51 | |
| michael@0 | 52 | HRESULT CreateSourceReader(); |
| michael@0 | 53 | HRESULT ConfigureAudioDecoder(); |
| michael@0 | 54 | HRESULT ConfigureVideoDecoder(); |
| michael@0 | 55 | HRESULT ConfigureVideoFrameGeometry(IMFMediaType* aMediaType); |
| michael@0 | 56 | void GetSupportedAudioCodecs(const GUID** aCodecs, uint32_t* aNumCodecs); |
| michael@0 | 57 | |
| michael@0 | 58 | HRESULT CreateBasicVideoFrame(IMFSample* aSample, |
| michael@0 | 59 | int64_t aTimestampUsecs, |
| michael@0 | 60 | int64_t aDurationUsecs, |
| michael@0 | 61 | int64_t aOffsetBytes, |
| michael@0 | 62 | VideoData** aOutVideoData); |
| michael@0 | 63 | |
| michael@0 | 64 | HRESULT CreateD3DVideoFrame(IMFSample* aSample, |
| michael@0 | 65 | int64_t aTimestampUsecs, |
| michael@0 | 66 | int64_t aDurationUsecs, |
| michael@0 | 67 | int64_t aOffsetBytes, |
| michael@0 | 68 | VideoData** aOutVideoData); |
| michael@0 | 69 | |
| michael@0 | 70 | // Attempt to initialize DXVA. Returns true on success. |
| michael@0 | 71 | bool InitializeDXVA(); |
| michael@0 | 72 | |
| michael@0 | 73 | RefPtr<IMFSourceReader> mSourceReader; |
| michael@0 | 74 | RefPtr<WMFByteStream> mByteStream; |
| michael@0 | 75 | RefPtr<WMFSourceReaderCallback> mSourceReaderCallback; |
| michael@0 | 76 | nsAutoPtr<DXVA2Manager> mDXVA2Manager; |
| michael@0 | 77 | |
| michael@0 | 78 | // Region inside the video frame that makes up the picture. Pixels outside |
| michael@0 | 79 | // of this region should not be rendered. |
| michael@0 | 80 | nsIntRect mPictureRegion; |
| michael@0 | 81 | |
| michael@0 | 82 | uint32_t mAudioChannels; |
| michael@0 | 83 | uint32_t mAudioBytesPerSample; |
| michael@0 | 84 | uint32_t mAudioRate; |
| michael@0 | 85 | |
| michael@0 | 86 | uint32_t mVideoWidth; |
| michael@0 | 87 | uint32_t mVideoHeight; |
| michael@0 | 88 | uint32_t mVideoStride; |
| michael@0 | 89 | |
| michael@0 | 90 | // The offset, in audio frames, at which playback started since the |
| michael@0 | 91 | // last discontinuity. |
| michael@0 | 92 | int64_t mAudioFrameOffset; |
| michael@0 | 93 | // The number of audio frames that we've played since the last |
| michael@0 | 94 | // discontinuity. |
| michael@0 | 95 | int64_t mAudioFrameSum; |
| michael@0 | 96 | // True if we need to re-initialize mAudioFrameOffset and mAudioFrameSum |
| michael@0 | 97 | // from the next audio packet we decode. This happens after a seek, since |
| michael@0 | 98 | // WMF doesn't mark a stream as having a discontinuity after a seek(0). |
| michael@0 | 99 | bool mMustRecaptureAudioPosition; |
| michael@0 | 100 | |
| michael@0 | 101 | bool mHasAudio; |
| michael@0 | 102 | bool mHasVideo; |
| michael@0 | 103 | bool mUseHwAccel; |
| michael@0 | 104 | |
| michael@0 | 105 | // We can't call WMFDecoder::IsMP3Supported() on non-main threads, since it |
| michael@0 | 106 | // checks a pref, so we cache its value in mIsMP3Enabled and use that on |
| michael@0 | 107 | // the decode thread. |
| michael@0 | 108 | const bool mIsMP3Enabled; |
| michael@0 | 109 | |
| michael@0 | 110 | bool mCOMInitialized; |
| michael@0 | 111 | }; |
| michael@0 | 112 | |
| michael@0 | 113 | } // namespace mozilla |
| michael@0 | 114 | |
| michael@0 | 115 | #endif |
