This is a step towards harmonizing the MediaSource Builders and (potentially)
providing MediaSource factories.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177783157
- Remove skipping of the VBRI/XING frame before calculating position
offsets. This was incorrect. Instead, a constraint is used to ensure
we don't return positions within these frames, the difference being
that the constraint adjusts only positions that would fall within
the frames, where-as the previous approach shifted positions through
the whole stream.
- Excluded last entry in the VBRI table because it has an invalid
position (the length of the stream).
- Give variables in XingSeeker descriptive names.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177451295
The set of active audio processors was only updated on reconfiguration and when
draining playback parameters completed. Draining playback parameters are cleared
in reset(), so if parameters were set while paused then the sink was quickly
reset, without draining completing, the set of active audio processors wouldn't
be updated. This means that a switch to or from speed or pitch = 1 would not be
handled correctly if made while paused and followed by a seek.
Move resetting active audio processors from configure (where if the active audio
processors were reset we'd always initialize a new AudioTrack) to initialize().
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177442098
- This change snaps the seek position for constant bitrate MP3s
to the nearest frame boundary, avoiding the need to skip one
byte at a time to re-synchronize (this may still happen if the
MP3 does not really have fixed size frames).
- Tweaked both ConstantBitrateSeeker and WavHeader to ensure the
returned positions are valid.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177441798
Support ad MediaSources that aren't prepared immediately by using
DeferredMediaPeriod, moved up from DynamicConcatenatingMediaSource.
In a later change the new interfaces will be made public so that apps
can provide their own MediaSource factories.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177424172
captions fetcher architecture.
1. ManifestlessCaptionsMetadata
Other captions fetchers must first fetch a manifest (HLS or manifest) to
discover captions tracks. This process does not exist for manifestless. All
we need to do is scan the FormatStream's for the right itag, so this is an
all-static class.
2. ManifestlessSubtitleWindowProvider
Once a captions track is selected, a subtitles provider is instantiated. This
is the main interface used by the player to retrieve captions according to
playback position. This class stores fetched captions in a tree index by time
for efficient lookups. Background captions fetches are used to populate
the tree.
3. ManifestlessCaptionsFetch
Captions are fetched one segment at a time. One instance of this object
is required per fetch. It performs a blocking fetch on call(), and is
intended to be submitted to a background-thread executor.
4. ManifestlessCaptionsFetch.CaptionSegment
This is the result of the caption fetch. These values are used to populate
the captions tree.
Manifestlessness
The initial request is always a headm request. There is a separate tree
of every segment indexed by start time. This tree is used to improve
manifestless sequence number calculation. Once we have data for the current
timestamp, we walk forward through the tree to find the next unfetched
sequence number, and fetch that.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177385094
- Avoid re-downloading data prior to the first mdat box when
seeking back to the start of an unseekable FMP4.
- Avoid re-downloading data prior to the first frame for
constant bitrate MP3.
- Update SeekMap.getPosition documentation to allow a non-zero
position for the unseekable case. Note that XingSeeker was
already returning a non-zero position if unseekable.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177317256
There are still things broken about the seeker, but this
cleans up some of the weird bits.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177315136
Also slightly improve language normalization/documentation.
For this CL, it is assumed that null and "und" languages are different
entities. Once we fully tackle language tag normalization, we can decide
whether to normalize the "undefined" language.
Issue:#2867
Issue:#2980
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177008509
currentTimeMillis is not guaranteed to be monotonic and elapsedRealtime is
recommend for interval timing.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176853118
Add Builder pattern to SingleSampleMediaSource and mark existing constructors as
deprecated.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176332964
- MediaSourceTestRunner aims to encapsulate some of the logic
currently used in DynamicConcatenatingMediaSourceTest, so it
can be re-used for testing other MediaSource implementations.
- The change also fixes DynamicConcatenatingMediaSourceTest to
execute calls on the correct threads, and to release handler
threads at the end of each test.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176117535
This test seems to obtain a timeline from a prepared
FakeMediaSource, but that's identical to the timeline
passed into that source to start with :).
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176117133
This is helpful for tests which don't care about detailled timeline set-ups
besides the number of windows.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176097369
Add Builder pattern to ExtractorMediaSource and mark existing constructors as
deprecated.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176088810
This change makes sure progress is being made before reporting
a discontinuity. Else in cases like having no network and
playing a live stream, we allow the discontinuity to be read
each time an internal retry occurs, meaning it gets read
repeatedly. This does no harm, but is noisy and unnecessary.
We should also not allow skipping whilst there is a pending
reset or discontinuity notification, just like we don't allow
reads.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=175953064
Also switch from using MIME types to C.ENCODING_* encodings in DefaultAudioSink.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=175936872
The purpose of this change isn't to fix anything. It's just to
simplify things a little bit. There will be following CLs that
make some changes to get things onto correct threads.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=175800354
This allows to remove the LazyMediaSource used within
DynamicConcatenatingMediaSourceTest and also allows to write test which
simulates dynamic timeline or manifest updates.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=175680371
This also allows exposing multiple CC channels to any fMP4 extractor client.
Issue:#1661
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=174458725
Add onEnable() and onDisable() call-backs to TrackSelection. This allows
TrackSelection to perform interesting operations (like subscribe to
NetworkStatus) and clean up after itself.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=175558485
This causes the player to report that it's started loading
when in the ended state.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176371892
- Properly report internal discontinuities
- Add DISCONTINUITY_REASON_SEEK_ADJUSTMENT to distinguish
seek adjustments from other internal discontinuity events
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176367365
We (eventually - albeit possibly infinitely far in the future)
expect a timeline update with a window of known duration. This
also stops live radio stream playbacks transitioning to ended
state when their tracks are disabled.
As part of this fix, I found an issue where getPeriodPosition
could return null even when defaultPositionProjectionUs is 0,
which is not as documented.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176492024
