Can now specify negative values for the r attribute in SegmentTimeline.
Not supported with live when used on the last element.
Issue #162
Change-Id: I7206e02f7af469a7daf1e4710befb2d102f4f979
Add new ContentProtection interpretation API that allows applications to
return multiple DRM configurations for each ContentProtection element
and to parse raw ContentProtection XML elements.
This patch deprecates DrmSchemeInfo in favor of DrmInfo. Furthermore,
DrmSchemeInfo will be removed post v1.5.0.
* Replace DrmSchemeInfo with DrmInfo.
* Move Restrictions class definition into its own file.
* Populate initData values from explicit PSSHs without application
intervention.
* Allow explicit PSSHs to differ between Representations
Issue #71
Issue #137
Closes b/23428584
Change-Id: Ib8d6ba630b930ee64f923a3f4a3e518abacccf88
Added a new class called FailoverUri which handles multiple URLs and
switches to others when one fails. This is also handles the request
itself. This replaces SegmentMetadata as well as a number of manual
requests.
The MPD parser now produces arrays of URIs rather than just one. The
MPD Processor then converts it to a FailoverUri inside the manifest.
Added unit tests to test the new functionality and updated the old ones
to the new changes.
This does not support failover on subtitles since subtitles are handled
by the browser.
Closes#68
Change-Id: I5410104827b9e4102b243444b1b5a3f01dcaf10d
A SegmentTimeline can appear inside a SegmentList and describes the
duration of the items in the list. A SegmentTimeline can also be
inherited from the Period or AdaptationSet. These have all been
added. Also added SegmentList support for dynamic MPDs.
Closes#88
Change-Id: I849491b1c6a5808a58c597eccfd439154e2e6ecd
This allows an app to specify an external caption source so the captions
can come from a different source than the MPD. The method should be
called before the call to load().
Closes#133
Change-Id: I0686fd800e0fe3a73d89a71e2f374dffef905dba
* Make the order of properties consistent between
AdaptationSet and StreamSetInfo.
* Mark all MPD related constructors as @struct.
Change-Id: I7016aafb0bf073e6e4972b34e267ad6ef87f810c
* Move seek range updates into SegmentIndex implementations
and StreamVideoSource.
* Remove unnecessary sub-class hooks from StreamVideoSource.
* Remove internal LiveSegmentIndex timer: do SegmentReference eviction
and generation on demand.
* Rework Stream startup again: consider Streams as started when they
have buffered some minimum amount of content. As part of this, only
apply a timestamp correction to the SBM when the streams have started.
* Defer stream switches until all SegmentIndexes have been corrected.
* Partially revert optimistic "bufferedAhead" calculations in Stream:
check if we've buffered enough content at least every second.
* Make LiveSegmentIndex more robust against a "wrong"
@availabilityStartTime.
* Fix a bug where a positive timestamp correction would trigger an extra
Stream resync.
* Fix a bug in evict_() where the first segment would never get evicted.
* Check stream started conditions in onUpdate_ instead of after a segment
has been inserted.
* Tidy-up immediate/clearBuffer naming and other comments.
Closes#51Closes#109
Change-Id: Ic6f0b96065d3c5dfb5c03ca1c52363bd77b22875
Reflect modifications made in ISO/IEC 23009-1:2014/Cor 1:2015:
allow @startNumber to be 0 and compute the $Time$ placeholder using
the segment number relative to the start of the Period.
Closes#10
Change-Id: I4a9b0e4e3593c01e2e8d42a74572e78b9fba50d9
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
Also avoid fetching manifest updates when minimumUpdatePeriod is
missing. In the absence of minimumUpdatePeriod, just reprocess
the MPD we already downloaded.
Closes#69, #70.
Change-Id: I138bf136e5b0d691d9d625bbad02fb07ae21d32f
Strip extraneous minBufferTime copies.
Default minBufferTime in MpdProcessor if missing.
Pass minBufferTime as a parameter to Stream.start().
Keep a buffering goal separate from minBufferTime, which will only
be used for stream startup (as intended by the DASH spec).
This allows us to startup quickly and still buffer ahead.
Relates to #51.
Change-Id: I94b6b2566419344fa761ff75b0884719f255cd66
* Construct the initial SegmentIndex for a live stream such that it
includes at least @timeShiftBufferDepth seconds of content before
the "live-edge".
* Use segment numbers relative to @startNumber instead of relative
to the start of the Period in SegmentReference to handle MPDs
with partial segment information.
* Start live streams near the "live-edge", a.k.a., "best start time",
and start static streams at the latest start time.
Issue #21
Change-Id: I3c553a1b7120a59c68f19cdc85f412f31972c1b8
* Expand SegmentTemplates directly to StreamInfos instead of using
intermediate SegmentBases and SegmentLists.
* Remove "fake" attributes from SegmentBase and SegmentUrl.
* Simplify Period duration derivation.
* Add additional unit tests.
Change-Id: I203e269bd9dfb1fb1cc4ca48be29043c1ee4007b
* Implement an update() method on StreamVideoSource that merges
a new manifest into its existing one.
* Re-fetch and re-process MPDs from DashVideoSource to generate new
SegmentReferences.
* Compute last available segment numbers and times in MpdProcessor
when generating SegmentLists.
* Re-work Period computation in MpdProcessor.
* Handle stream EOF differently for live content.
Additional work is required to handle all "styles" of manifests.
Issue #21
Change-Id: I38be9513dc73e4683d1079b4dedb489e8206043d
Assume a year is 365 days and a month is 30 days. Supporting years and
months is useful as some MPDs that describe live content specify
@minimumUpdatePeriod in terms of years; here, an accurate number of
seconds is not needed, but the duration string should not be treated as
invalid.
Change-Id: Ic4ea26f5a7572711e047c237dced33d80a698840
* Instead of overriding SegmentBase, SegmentList, etc. between
levels (e.g., from Period to AdaptationSet) merge them, but
prefer elements and attributes from inner levels.
* Refactor MPD parsing unit tests into separate files.
* Rewrite SegmentBase unit tests, add SegmentList, and
SegmentTemplate unit tests.
Change-Id: I3fdb7657bb9f468e10f63e47e9a52fbf8ebbd40b
* Revert 5c7fca90b6, which intended
to allow startNumber to be 0, and maintain the previous behavior,
which requires startNumber to begin at 1 (this appears to be in-line
with the MPD spec).
* Correctly compute the $Time$ placeholder.
* Rename firstSegmentNumber to startNumber to clarify code.
Closes#10
Change-Id: I9b565edc9e23b9ad7c6bc62829d6b0ab565008a4
* Adjust SourceBuffer timestamps forward by the Period's
start time and backwards by the Representation's
presentationTimeOffset.
* Incorporate the start time of a Representation's first
segment in the calculation of a Period's duration.
* Seek to the latest start time before starting playback.
Further adjustments will be required to support live playback.
Closes#17, b/19130302
Change-Id: Ia9fe6d8bbe5a69488130de2d8b146ce54dfff50e
AdaptationSets are sorted by language (audio-only), then by those with
the "main" role. Main sets are preferred when there are multiple to
choose from.
Closes#20, b/19214703.
Change-Id: I4fdd601c0bd7c7d29801084199123311ab9dbec3
Most of these StringUtils were either operating on Uint8Arrays directly
or using strings to move around Uint8Array data anyhow.
Change-Id: I71efe6ede34210ca721d46acd53452344efff5bb
* Create generic stream description classes to represent
Representations, AdaptationSets, and Periods.
* Move generic stream selection logic out of MpdProcessor and
into StreamInfoProcessor.
* Refactor DashVideoSource and DashStream to use the generic
stream description classes.
A follow-up patch is required to re-organize files and namespaces.
b/18903621
b/18948677
Change-Id: I8bbb87ebf0242b31541199d0d1d3c40767c93a29
Jacob Trimble
Timothy Drews
Joey Parrish
Vignesh Venkatasubramanian