1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/content/media/directshow/SourceFilter.h Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,76 @@ 1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 1.5 +/* vim:set ts=2 sw=2 sts=2 et cindent: */ 1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public 1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file, 1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */ 1.9 + 1.10 +#if !defined(nsDirectShowSource_h___) 1.11 +#define nsDirectShowSource_h___ 1.12 + 1.13 +#include "BaseFilter.h" 1.14 +#include "BasePin.h" 1.15 +#include "MediaType.h" 1.16 + 1.17 +#include "nsDeque.h" 1.18 +#include "nsAutoPtr.h" 1.19 +#include "DirectShowUtils.h" 1.20 +#include "mozilla/RefPtr.h" 1.21 + 1.22 +namespace mozilla { 1.23 + 1.24 +class MediaResource; 1.25 +class ReadRequest; 1.26 +class OutputPin; 1.27 + 1.28 + 1.29 +// SourceFilter is an asynchronous DirectShow source filter which 1.30 +// reads from an MediaResource, and supplies data via a pull model downstream 1.31 +// using OutputPin. It us used to supply a generic byte stream into 1.32 +// DirectShow. 1.33 +// 1.34 +// Implements: 1.35 +// * IBaseFilter 1.36 +// * IMediaFilter 1.37 +// * IPersist 1.38 +// * IUnknown 1.39 +// 1.40 +class DECLSPEC_UUID("5c2a7ad0-ba82-4659-9178-c4719a2765d6") 1.41 +SourceFilter : public media::BaseFilter 1.42 +{ 1.43 +public: 1.44 + 1.45 + // Constructs source filter to deliver given media type. 1.46 + SourceFilter(const GUID& aMajorType, const GUID& aSubType); 1.47 + ~SourceFilter(); 1.48 + 1.49 + nsresult Init(MediaResource *aResource, int64_t aMP3Offset); 1.50 + 1.51 + // BaseFilter overrides. 1.52 + // Only one output - the byte stream. 1.53 + int GetPinCount() MOZ_OVERRIDE { return 1; } 1.54 + 1.55 + media::BasePin* GetPin(int n) MOZ_OVERRIDE; 1.56 + 1.57 + // Get's the media type we're supplying. 1.58 + const media::MediaType* GetMediaType() const; 1.59 + 1.60 + uint32_t GetAndResetBytesConsumedCount(); 1.61 + 1.62 +protected: 1.63 + 1.64 + // Our async pull output pin. 1.65 + nsAutoPtr<OutputPin> mOutputPin; 1.66 + 1.67 + // Type of byte stream we output. 1.68 + media::MediaType mMediaType; 1.69 + 1.70 +}; 1.71 + 1.72 +} // namespace mozilla 1.73 + 1.74 +// For mingw __uuidof support 1.75 +#ifdef __CRT_UUID_DECL 1.76 +__CRT_UUID_DECL(mozilla::SourceFilter, 0x5c2a7ad0,0xba82,0x4659,0x91,0x78,0xc4,0x71,0x9a,0x27,0x65,0xd6); 1.77 +#endif 1.78 + 1.79 +#endif