The Tor Browser: content/media/directshow/SourceFilter.h@44a2da4a2ab2

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

     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/. */

     7 #if !defined(nsDirectShowSource_h___)

     8 #define nsDirectShowSource_h___

    10 #include "BaseFilter.h"

    11 #include "BasePin.h"

    12 #include "MediaType.h"

    14 #include "nsDeque.h"

    15 #include "nsAutoPtr.h"

    16 #include "DirectShowUtils.h"

    17 #include "mozilla/RefPtr.h"

    19 namespace mozilla {

    21 class MediaResource;

    22 class ReadRequest;

    23 class OutputPin;

    26 // SourceFilter is an asynchronous DirectShow source filter which

    27 // reads from an MediaResource, and supplies data via a pull model downstream

    28 // using OutputPin. It us used to supply a generic byte stream into

    29 // DirectShow.

    30 //

    31 // Implements:

    32 //  * IBaseFilter

    33 //  * IMediaFilter

    34 //  * IPersist

    35 //  * IUnknown

    36 //

    37 class DECLSPEC_UUID("5c2a7ad0-ba82-4659-9178-c4719a2765d6")

    38 SourceFilter : public media::BaseFilter

    39 {

    40 public:

    42   // Constructs source filter to deliver given media type.

    43   SourceFilter(const GUID& aMajorType, const GUID& aSubType);

    44   ~SourceFilter();

    46   nsresult Init(MediaResource *aResource, int64_t aMP3Offset);

    48   // BaseFilter overrides.

    49   // Only one output - the byte stream.

    50   int GetPinCount() MOZ_OVERRIDE { return 1; }

    52   media::BasePin* GetPin(int n) MOZ_OVERRIDE;

    54   // Get's the media type we're supplying.

    55   const media::MediaType* GetMediaType() const;

    57   uint32_t GetAndResetBytesConsumedCount();

    59 protected:

    61   // Our async pull output pin.

    62   nsAutoPtr<OutputPin> mOutputPin;

    64   // Type of byte stream we output.

    65   media::MediaType mMediaType;

    67 };

    69 } // namespace mozilla

    71 // For mingw __uuidof support

    72 #ifdef __CRT_UUID_DECL

    73 __CRT_UUID_DECL(mozilla::SourceFilter, 0x5c2a7ad0,0xba82,0x4659,0x91,0x78,0xc4,0x71,0x9a,0x27,0x65,0xd6);

    74 #endif

    76 #endif

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