content/media/directshow/SourceFilter.h@97036ab72558
content/media/directshow/SourceFilter.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.
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
