Design
Architecture diagram
digraph shaka_packager {
label=<<u>Shaka Packager Architecture</u>>
labelloc=t
subgraph cluster_media {
label=<<u>Media Processing Pipeline</u>>
Demuxer, ChunkingHandler, EncryptionHandler, Replicator,
TrickplayHandler, Muxer [shape=rectangle]
Demuxer -> ChunkingHandler [style=bold headlabel="many" taillabel="1"]
ChunkingHandler -> EncryptionHandler -> Replicator -> TrickplayHandler
-> Muxer [style=bold]
ChunkingHandler -> Replicator -> Muxer [style=bold]
}
MuxerListener, MpdNotifyMuxerListener, HlsNotifyMuxerListener,
MpdNotifier, HlsNotifier [shape=rectangle style=rounded]
Muxer -> MuxerListener
MuxerListener -> MpdNotifyMuxerListener, HlsNotifyMuxerListener
[dir=back arrowtail=onormal]
subgraph cluster_manifest {
label=<<u>Manifest Generation</u>>
HlsNotifyMuxerListener -> HlsNotifier [headlabel="1" taillabel="many"]
MpdNotifyMuxerListener -> MpdNotifier [headlabel="1" taillabel="many"]
MasterPlaylist, MediaPlaylist, MpdBuilder, AdaptationSet,
Representation [shape=trapezium]
HlsNotifier -> MasterPlaylist
MasterPlaylist -> MediaPlaylist
[dir=back arrowtail=diamond headlabel="many" taillabel="1"]
MpdNotifier -> MpdBuilder
MpdBuilder -> AdaptationSet -> Representation
[dir=back arrowtail=diamond headlabel="many" taillabel="1"]
{rank=same; MasterPlaylist, MpdBuilder}
{rank=same; MediaPlaylist, Representation}
}
}digraph shaka_packager {
subgraph cluster_demuxer {
style=rounded
label=<<u> </u>>
Demuxer2 [label="Demuxer" shape=rectangle]
Demuxer2 -> MediaParser
[dir=back arrowtail=diamond headlabel="1" taillabel="1"]
MediaParser -> Mp4MediaParser, WebMMediaParser, Mp2tMediaParser,
WvmMediaParser [dir=back arrowtail=onormal]
}
subgraph cluster_muxer {
style=rounded
label=<<u> </u>>
Muxer2 [label="Muxer" shape=rectangle]
Muxer2 -> Mp4Muxer, WebMMuxer, Mp2tMuxer [dir=back arrowtail=onormal]
}
}digraph shaka_packager {
subgraph cluster_legend {
style=rounded
label=<<u>Legend</u>>
node [shape=plaintext]
blank1 [label="" height=0]
blank2 [label="" height=0]
blank3 [label="" height=0]
"Composition" -> blank1 [dir=back arrowtail=diamond]
"Inheritance" -> blank2 [dir=back arrowtail=onormal]
"MediaHandler data flow" -> blank3 [style=bold]
"Bridge Class" [shape=rectangle style=rounded]
"Manifest Class" [shape=trapezium]
MediaHandler [shape=rectangle]
}
}