From f2723fc8bf8c961af2d29252f380544c47c72371 Mon Sep 17 00:00:00 2001 From: trav90 Date: Sat, 1 Dec 2018 09:40:13 -0600 Subject: Remove DirectShowReader Part 3: Directories --- dom/media/directshow/DirectShowReader.h | 110 -------------------------------- 1 file changed, 110 deletions(-) delete mode 100644 dom/media/directshow/DirectShowReader.h (limited to 'dom/media/directshow/DirectShowReader.h') diff --git a/dom/media/directshow/DirectShowReader.h b/dom/media/directshow/DirectShowReader.h deleted file mode 100644 index 881b27c28..000000000 --- a/dom/media/directshow/DirectShowReader.h +++ /dev/null @@ -1,110 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/* vim:set ts=2 sw=2 sts=2 et cindent: */ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -#if !defined(DirectShowReader_h_) -#define DirectShowReader_h_ - -#include "windows.h" // HRESULT, DWORD -#include "MediaDecoderReader.h" -#include "MediaResource.h" -#include "mozilla/RefPtr.h" -#include "MP3FrameParser.h" - -// Add the graph to the Running Object Table so that we can connect -// to this graph with GraphEdit/GraphStudio. Note: you must -// also regsvr32 proppage.dll from the Windows SDK. -// See: http://msdn.microsoft.com/en-us/library/ms787252(VS.85).aspx -// #define DIRECTSHOW_REGISTER_GRAPH - -struct IGraphBuilder; -struct IMediaControl; -struct IMediaSeeking; - -namespace mozilla { - -class AudioSinkFilter; -class SourceFilter; - -// Decoder backend for decoding MP3 using DirectShow. DirectShow operates as -// a filter graph. The basic design of the DirectShowReader is that we have -// a SourceFilter that wraps the MediaResource that connects to the -// MP3 decoder filter. The MP3 decoder filter "pulls" data as it requires it -// downstream on its own thread. When the MP3 decoder has produced a block of -// decoded samples, its thread calls downstream into our AudioSinkFilter, -// passing the decoded buffer in. The AudioSinkFilter inserts the samples into -// a SampleSink object. The SampleSink blocks the MP3 decoder's thread until -// the decode thread calls DecodeAudioData(), whereupon the SampleSink -// releases the decoded samples to the decode thread, and unblocks the MP3 -// decoder's thread. The MP3 decoder can then request more data from the -// SourceFilter, and decode more data. If the decode thread calls -// DecodeAudioData() and there's no decoded samples waiting to be extracted -// in the SampleSink, the SampleSink blocks the decode thread until the MP3 -// decoder produces a decoded sample. -class DirectShowReader : public MediaDecoderReader -{ -public: - DirectShowReader(AbstractMediaDecoder* aDecoder); - - virtual ~DirectShowReader(); - - bool DecodeAudioData() override; - bool DecodeVideoFrame(bool &aKeyframeSkip, - int64_t aTimeThreshold) override; - - nsresult ReadMetadata(MediaInfo* aInfo, - MetadataTags** aTags) override; - - RefPtr - Seek(SeekTarget aTarget, int64_t aEndTime) override; - - static const GUID CLSID_MPEG_LAYER_3_DECODER_FILTER; - -private: - // Notifies the filter graph that playback is complete. aStatus is - // the code to send to the filter graph. Always returns false, so - // that we can just "return Finish()" from DecodeAudioData(). - bool Finish(HRESULT aStatus); - - nsresult SeekInternal(int64_t aTime); - - // DirectShow filter graph, and associated playback and seeking - // control interfaces. - RefPtr mGraph; - RefPtr mControl; - RefPtr mMediaSeeking; - - // Wraps the MediaResource, and feeds undecoded data into the filter graph. - RefPtr mSourceFilter; - - // Sits at the end of the graph, removing decoded samples from the graph. - // The graph will block while this is blocked, i.e. it will pause decoding. - RefPtr mAudioSinkFilter; - - // Some MP3s are variable bitrate, so DirectShow's duration estimation - // can make its duration estimation based on the wrong bitrate. So we parse - // the MP3 frames to get a more accuate estimate of the duration. - MP3FrameParser mMP3FrameParser; - -#ifdef DIRECTSHOW_REGISTER_GRAPH - // Used to add/remove the filter graph to the Running Object Table. You can - // connect GraphEdit/GraphStudio to the graph to observe and/or debug its - // topology and state. - DWORD mRotRegister; -#endif - - // Number of channels in the audio stream. - uint32_t mNumChannels; - - // Samples per second in the audio stream. - uint32_t mAudioRate; - - // Number of bytes per sample. Can be either 1 or 2. - uint32_t mBytesPerSample; -}; - -} // namespace mozilla - -#endif -- cgit v1.2.3