* Allow segments from different streams (Representations) to coexist
in buffer.
* Only fetch a single segment at a time.
* Remove id field from SegmentReference and remove SegmentRange.
* Only start the Streams once the buffer is "full".
* Stop DashVideoSource from triggering an extra resync during startup.
* Make Task.abort call order deterministic.
A follow-up patch is required to handle certain seek patterns in
live streams.
Issue #51
Change-Id: Ib7c9021471f1ed89323f19764463202b119cb491
This patch reworks SegmentIndexes so that any SegmentReference they
contain is guaranteed to be available. This makes SegmentIndexes work
consistently between static content and live content (specifically
content specified using SegmentTemplate with @duration).
* Rework StreamInfo to use a ISegmentIndexSource and a ISegmentInitSource,
which construct a SegmentIndex and an intiailization segment
respectively.
* Make ManifestInfo destructible and various async operations in
StreamVideoSource safer.
* Introduce LiveSegmentIndex, which manages SegmentReference eviction.
* Introduce DynamicLiveSegmentIndex, which manages SegmentReference
eviction and generation.
* Implement improved segment availability logic for segment eviction.
* Move SegmentIndex construction from MpdProcessor to several
ISegmentIndexSource implementations.
* Use a SegmentIndex to represent subtitles to simplify Stream creation
in StreamVideoSource.
* Move manifest update code from StreamVideoSource to ManifestUpdater.
* Move PeriodInfo.duration determination in MpdProcessor to StreamVideoSource.
* Since "forced" manifest updates are no longer required for content
specified using SegmentTemplate with @duration, simplify manifest update
code in DashVideoSource.
* Make Stream continue to update even if it runs out of
SegmentReferences, this simplifies previous resync logic and makes
DynamicLiveSegmentIndex work seamlessly.
* Refactor SegmentIndex and initialization fetch code in ContentDatabase.
* Download all SegmentIndexes in the background after the initial streams
have started.
Follow up work is required to remove seek range logic from
DashVideoSource.
Change-Id: I4a908195aba632a911a6e55213fc41d41428162b
This interfered with key rotation, and was not widely used. Removing
the feature is the more general approach, and the worst that will
happen is that some applications will see more sessions than they
strictly need.
Change-Id: Ide2238433af296e729e4401711672fb17257093e
Chrome 42+ is crashing when we insert roughly 64MB of data into the
database at a time. The database now tries to batch up 1MB of
segments, which means only single segments will be inserted for high
bitrate content, but we will still get a performance boost from
batching up segments for low bitrate content.
Change-Id: I3205b108dc089ea2901ea6b9eae5125901535f0c
Tests were failing if an existing database had a greater version
number. This was an artifact of an older version of ContentDatabase
which used a different version number.
Tests would also fail if one of the 'stores a stream' tests was run
several times in a row, such that the stream ID had more than one
digit. The reference matcher now accepts multi-digit IDs.
Change-Id: I8d8949e46bd0720abd761248790b2ee5965ff4a1
Rejected promises now pass an Error object instead of a simple event.
This causes test failures to display useful error messages now.
Change-Id: I9d9a756e84d204185ca9a2e36ca92ef814d05e4d
This fixes timing-based flakiness on these tests:
* ContentDatabase - deletes the database
* Player - seek - does not hang when seeking to evicted data
Change-Id: Ieb4e1291289fa589ccda94a86698c15f1bde8fba
Timothy Drews
Natalie Harris
Joey Parrish