gecko/content/media/omx/RtspExtractor.h

54 lines
1.9 KiB
C++

/* -*- 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(RtspExtractor_h_)
#define RtspExtractor_h_
#include "RtspMediaResource.h"
#include <stagefright/MediaBufferGroup.h>
#include <stagefright/MediaExtractor.h>
#include <stagefright/MediaSource.h>
#include <stagefright/MetaData.h>
namespace mozilla {
// RtspExtractor is a custom extractor for Rtsp stream, whereas the other
// XXXExtractors are made for container media content.
// The extractor is used for |OmxDecoder::Init|, it provides the essential
// information for creating OMXCodec instance.
// For example, the |getTrackMetaData| returns metadata that includes the
// codec type.
class RtspExtractor: public android::MediaExtractor
{
public:
virtual size_t countTracks() MOZ_FINAL MOZ_OVERRIDE;
virtual android::sp<android::MediaSource> getTrack(size_t index)
MOZ_FINAL MOZ_OVERRIDE;
virtual android::sp<android::MetaData> getTrackMetaData(
size_t index, uint32_t flag = 0) MOZ_FINAL MOZ_OVERRIDE;
virtual uint32_t flags() const MOZ_FINAL MOZ_OVERRIDE;
RtspExtractor(RtspMediaResource* aResource)
: mRtspResource(aResource) {
MOZ_ASSERT(aResource);
mController = mRtspResource->GetMediaStreamController();
MOZ_ASSERT(mController);
}
virtual ~RtspExtractor() MOZ_OVERRIDE {}
private:
// mRtspResource is a pointer to RtspMediaResource. When |getTrack| is called
// we use mRtspResource to construct a RtspMediaSource.
RtspMediaResource* mRtspResource;
// Through the mController in mRtspResource, we can get the essential
// information for the extractor.
nsRefPtr<nsIStreamingProtocolController> mController;
};
} // namespace mozilla
#endif