зеркало из https://github.com/mozilla/gecko-dev.git
54 строки
1.9 KiB
C++
54 строки
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#if !defined(RtspExtractor_h_)
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#define RtspExtractor_h_
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#include "RtspMediaResource.h"
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#include <stagefright/MediaBufferGroup.h>
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#include <stagefright/MediaExtractor.h>
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#include <stagefright/MediaSource.h>
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#include <stagefright/MetaData.h>
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namespace mozilla {
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// RtspExtractor is a custom extractor for Rtsp stream, whereas the other
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// XXXExtractors are made for container media content.
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// The extractor is used for |OmxDecoder::Init|, it provides the essential
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// information for creating OMXCodec instance.
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// For example, the |getTrackMetaData| returns metadata that includes the
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// codec type.
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class RtspExtractor: public android::MediaExtractor
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{
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public:
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virtual size_t countTracks() final override;
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virtual android::sp<android::MediaSource> getTrack(size_t index)
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final override;
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virtual android::sp<android::MetaData> getTrackMetaData(
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size_t index, uint32_t flag = 0) final override;
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virtual uint32_t flags() const final override;
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RtspExtractor(RtspMediaResource* aResource)
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: mRtspResource(aResource) {
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MOZ_ASSERT(aResource);
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mController = mRtspResource->GetMediaStreamController();
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MOZ_ASSERT(mController);
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}
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virtual ~RtspExtractor() override {}
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private:
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// mRtspResource is a pointer to RtspMediaResource. When |getTrack| is called
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// we use mRtspResource to construct a RtspMediaSource.
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RtspMediaResource* mRtspResource;
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// Through the mController in mRtspResource, we can get the essential
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// information for the extractor.
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nsRefPtr<nsIStreamingProtocolController> mController;
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};
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} // namespace mozilla
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#endif
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