shaka-packager/mpd/base/simple_vod_mpd_notifier.h

81 lines
2.8 KiB
C++

// Copyright 2014 Google Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
//
// Very simple implementation of MpdNotifier. Holds an instance of MpdBuilder
// and calls methods on the object directly.
#ifndef MPD_BASE_SIMPLE_MPD_NOTIFIER_H_
#define MPD_BASE_SIMPLE_MPD_NOTIFIER_H_
#include "mpd/base/mpd_notifier.h"
#include "mpd/base/mpd_builder.h"
namespace dash_packager {
// This assumes that MpdBuilder is for VOD. This class also assumes that all the
// container is for an AdaptationSet.
class SimpleVodMpdNotifier : public MpdNotifier {
public:
// TODO(rkuroiwa): Take File pointer for MPD output.
// MpdBuilder must be initialized before passing a pointer to this object.
// The ownership of |mpd_builder| does not transfer to this object and it must
// be non-NULL.
explicit SimpleVodMpdNotifier(MpdBuilder* mpd_builder);
virtual ~SimpleVodMpdNotifier();
// MpdNotifier implementation.
// This should be called only once.
virtual bool Init() OVERRIDE;
// Notifies MpdBuilder to add a container. The container must have audio
// (logical exclusive) or video, IOW it cannot have both audio and video nor
// can both audio and video be empty.
// On success this writes out MPD and returns true, otherwise returns false.
virtual bool NotifyNewContainer(const MediaInfo& media_info,
uint32* id) OVERRIDE;
// As documented in MpdNotifier. This is Live only feature. This will return
// false.
virtual bool NotifyNewSegment(uint32 id,
uint64 start_time,
uint64 duration) OVERRIDE;
// Adds content protection information to the container added via
// NotifyNewContainer(). This will fail if |id| is not a value populated by
// calling NotifyNewContainer().
// On success this writes out MPD and returns true, otherwise returns false.
virtual bool AddContentProtectionElement(
uint32 id,
const ContentProtectionElement& content_protection_element) OVERRIDE;
private:
enum ContainerType {
kVideo,
kAudio
};
// Adds new Representation to mpd_builder_ on success.
// Sets {audio,video}_adaptation_set_ depending on |type|, if it is NULL.
bool AddNewRepresentation(ContainerType type,
const MediaInfo& media_info,
uint32* id);
// None of these are owned by this object.
MpdBuilder* const mpd_builder_;
AdaptationSet* audio_adaptation_set_;
AdaptationSet* video_adaptation_set_;
Representation* representation_;
std::map<uint32, Representation*> id_to_representation_;
DISALLOW_COPY_AND_ASSIGN(SimpleVodMpdNotifier);
};
} // namespace dash_packager
#endif // MPD_BASE_SIMPLE_MPD_NOTIFIER_H_