The Tor Browser: content/media/plugins/MediaPluginReader.h@97036ab72558

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.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim:set ts=2 sw=2 sts=2 et cindent: */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,

     5  * You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #if !defined(MediaPluginReader_h_)

     7 #define MediaPluginReader_h_

     9 #include "mozilla/Attributes.h"

    10 #include "MediaResource.h"

    11 #include "MediaDecoderReader.h"

    12 #include "ImageContainer.h"

    13 #include "nsAutoPtr.h"

    14 #include "mozilla/layers/SharedRGBImage.h"

    16 #include "MPAPI.h"

    18 class nsACString;

    20 namespace mozilla {

    22 class AbstractMediaDecoder;

    24 namespace layers {

    25 class ImageContainer;

    26 }

    28 namespace dom {

    29 class TimeRanges;

    30 }

    32 class MediaPluginReader : public MediaDecoderReader

    33 {

    34   nsCString mType;

    35   MPAPI::Decoder *mPlugin;

    36   bool mHasAudio;

    37   bool mHasVideo;

    38   nsIntRect mPicture;

    39   nsIntSize mInitialFrame;

    40   int64_t mVideoSeekTimeUs;

    41   int64_t mAudioSeekTimeUs;

    42   nsAutoPtr<VideoData> mLastVideoFrame;

    43 public:

    44   MediaPluginReader(AbstractMediaDecoder* aDecoder,

    45                     const nsACString& aContentType);

    46   ~MediaPluginReader();

    48   virtual nsresult Init(MediaDecoderReader* aCloneDonor);

    49   virtual nsresult ResetDecode();

    51   virtual bool DecodeAudioData();

    52   virtual bool DecodeVideoFrame(bool &aKeyframeSkip,

    53                                 int64_t aTimeThreshold);

    55   virtual bool HasAudio()

    56   {

    57     return mHasAudio;

    58   }

    60   virtual bool HasVideo()

    61   {

    62     return mHasVideo;

    63   }

    65   virtual nsresult ReadMetadata(MediaInfo* aInfo,

    66                                 MetadataTags** aTags);

    67   virtual nsresult Seek(int64_t aTime, int64_t aStartTime, int64_t aEndTime, int64_t aCurrentTime);

    69   class ImageBufferCallback : public MPAPI::BufferCallback {

    70     typedef mozilla::layers::Image Image;

    72   public:

    73     ImageBufferCallback(mozilla::layers::ImageContainer *aImageContainer);

    74     void *operator()(size_t aWidth, size_t aHeight,

    75                      MPAPI::ColorFormat aColorFormat) MOZ_OVERRIDE;

    76     already_AddRefed<Image> GetImage();

    78   private:

    79     uint8_t *CreateI420Image(size_t aWidth, size_t aHeight);

    81     mozilla::layers::ImageContainer *mImageContainer;

    82     nsRefPtr<Image> mImage;

    83   };

    85 };

    87 } // namespace mozilla

    89 #endif

The Tor Browser / file revision

content/media/plugins/MediaPluginReader.h@97036ab72558

content/media/plugins/MediaPluginReader.h