shaka-packager/packager/mpd/base/dash_iop_mpd_notifier.h

126 lines
4.7 KiB
C++

// Copyright 2015 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
#ifndef MPD_BASE_DASH_IOP_MPD_NOTIFIER_H_
#define MPD_BASE_DASH_IOP_MPD_NOTIFIER_H_
#include "packager/mpd/base/mpd_notifier.h"
#include <list>
#include <map>
#include <string>
#include <vector>
#include "packager/mpd/base/mpd_builder.h"
#include "packager/mpd/base/mpd_notifier_util.h"
#include "packager/mpd/base/mpd_options.h"
namespace edash_packager {
/// This class is an MpdNotifier which will try its best to generate a
/// DASH IF IOPv3 compliant MPD.
/// e.g.
/// All <ContentProtection> elements must be right under
/// <AdaptationSet> and cannot be under <Representation>.
/// All video Adaptation Sets have Role set to "main".
class DashIopMpdNotifier : public MpdNotifier {
public:
DashIopMpdNotifier(DashProfile dash_profile,
const MpdOptions& mpd_options,
const std::vector<std::string>& base_urls,
const std::string& output_path);
virtual ~DashIopMpdNotifier() OVERRIDE;
/// None of the methods write out the MPD file until Flush() is called.
/// @name MpdNotifier implemetation overrides.
/// @{
virtual bool Init() OVERRIDE;
virtual bool NotifyNewContainer(const MediaInfo& media_info,
uint32_t* id) OVERRIDE;
virtual bool NotifySampleDuration(uint32_t container_id,
uint32_t sample_duration) OVERRIDE;
virtual bool NotifyNewSegment(uint32_t id,
uint64_t start_time,
uint64_t duration,
uint64_t size) OVERRIDE;
virtual bool NotifyEncryptionUpdate(
uint32_t container_id,
const std::string& drm_uuid,
const std::vector<uint8_t>& new_key_id,
const std::vector<uint8_t>& new_pssh) OVERRIDE;
virtual bool AddContentProtectionElement(
uint32_t id,
const ContentProtectionElement& content_protection_element) OVERRIDE;
virtual bool Flush() OVERRIDE;
/// @}
private:
friend class DashIopMpdNotifierTest;
// Maps representation ID to Representation.
typedef std::map<uint32_t, Representation*> RepresentationMap;
// Maps AdaptationSet ID to ProtectedContent.
typedef std::map<uint32_t, MediaInfo::ProtectedContent> ProtectedContentMap;
// Checks the protected_content field of media_info and returns a non-null
// AdaptationSet* for a new Representation.
// This does not necessarily return a new AdaptationSet. If
// media_info.protected_content completely matches with an existing
// AdaptationSet, then it will return the pointer.
AdaptationSet* GetAdaptationSetForMediaInfo(const MediaInfo& media_info,
ContentType type,
const std::string& language);
// Sets a group id for |adaptation_set| if applicable.
// If a group ID is already assigned, then this returns immediately.
// |type| and |language| are the type and language of |adaptation_set|.
void SetGroupId(ContentType type,
const std::string& language,
AdaptationSet* adaptation_set);
// Helper function to get a new AdaptationSet; registers the values
// to the fields (maps) of the instance.
// If the media is encrypted, registers data to protected_content_map_.
AdaptationSet* NewAdaptationSet(const MediaInfo& media_info,
const std::string& language,
std::list<AdaptationSet*>* adaptation_sets);
// Testing only method. Returns a pointer to MpdBuilder.
MpdBuilder* MpdBuilderForTesting() const {
return mpd_builder_.get();
}
// Testing only method. Sets mpd_builder_.
void SetMpdBuilderForTesting(scoped_ptr<MpdBuilder> mpd_builder) {
mpd_builder_ = mpd_builder.Pass();
}
// [type][lang] = list<AdaptationSet>
// Note: lang can be empty, e.g. for video.
std::map<ContentType, std::map<std::string, std::list<AdaptationSet*> > >
adaptation_set_list_map_;
RepresentationMap representation_map_;
// Used to check whether a Representation should be added to an AdaptationSet.
ProtectedContentMap protected_content_map_;
// MPD output path.
std::string output_path_;
scoped_ptr<MpdBuilder> mpd_builder_;
base::Lock lock_;
// Next group ID to use for AdapationSets that can be grouped.
int next_group_id_;
// Maps Representation ID to AdaptationSet. This is for updating the PSSH.
std::map<uint32_t, AdaptationSet*> representation_id_to_adaptation_set_;
};
} // namespace edash_packager
#endif // MPD_BASE_DASH_IOP_MPD_NOTIFIER_H_