All media periods are part of a queue of windows buffered and played by
ExoPlayer. When repeating windows, the current MediaPeriodId is insufficient
to distinguish between the repetitions of the same period. This makes it hard
to see to which media period load events belong to, and it is also difficult to
determine whether two media periods belong to the same logical window or
whether they are part of different repetitions of the same window.
Therefore this change adds a unique sequence number to each window in the
sequence of windows and this sequence number is saved as part of the
MediaPeriodId.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=185829509
There are 4 tests which can't currently be moved:
- DownloadManagerTest explicitly uses the main looper which isn't easily
supported because the test runs on this thread.
- ContentDataSourceTest uses an AssetFileDescriptor which wraps a
ParcelFileDescriptor. It seems Robolectric doesn't correctly forward the
inner wrapped file descriptor leading to NPE.
- CacheContentIndexTest and SimpleCacheSpanTest both work fine with Gradle
but fail with seemingly valid test failures on Blaze.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=185366678
If the period uid doesn't match, the update procedure currently doesn't
remove the correct periods. This may cause the player to get stuck or to play
the wrong periods.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=185129503
The ad index in the ad group may need to skip over ads that failed to load, so
it can't just be incremented any more.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=184812556
Resolve the media period for ad playback when resolving a subsequent period and
when receiving a timeline where the playing period in range (but wasn't before).
Fix the seek position calculation when a current ad must be skipped and is
followed by another ad.
Check MediaPeriodInfos match when checking MediaPeriodHolders, to handle cases
where a future ad should no longer be played. This may involve playing two
content media periods consecutively.
Issue: #3584
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=184514558
This makes assertion errors in code running on the Looper less easy to miss.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=184294290
In startReadWrite*() methods a new CachedContent is created if the there
isn't one already for the given key. If the span is release without
writing any content, this fix removes the added CachedContent.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=183666821
Before this change, the ad playback state stored the number of played ads in
each ad group. There was no way to represent that an ad had failed to load (and
it wouldn't be possible just to increment the played ad count to signal a load
error because there might be an unplayed ad before the ad that failed to load).
Represent the state of each ad (unavailable, available, skipped, played, error)
in each ad group. In a later change the player will use this information to
update its loaded MediaPeriods in response to future ads failing to load.
Also make the AdPlaybackState immutable and remove copying/duplication of its
fields in the ad timeline and period.
Issue: #3584
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=183655308
100ms is unrealistically short and, for example, causes the player to buffer
many periods ahead when looping.
Previously this was not feasible, because ExoPlayerTest as instrumentation test
actually needed to wait for the realtime playback duration.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=183646772
setBytesRemaining() doesn't work when called after closeCurrentSource()
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=182999254
So far this wasn't possible because Robolectric's Looper and MessageQueue
implementations have multiple shortcomings:
1. The message loop of new HandlerThreads is an not an actual loop and
scheduled messages are executed on the thread the message is enqueued
(not the handler thread).
2. The scheduler used to replace the message queue is synchronizing all its
methods. Thus, when a test attempts to add messages to a Handler from
two different threads, it may easily run into a deadlock.
3. The scheduler doesn't correctly emulate the order of messages as they
would be in an actual MessageQueue:
a. If the message is enqueued on the handler thread, it gets executed
immediately (and not after all other messages at the same time).
b. The list of messages is always re-sorted by time, meaning that the
order of execution for messages at the same time is indeterminate.
4. Robolectric's SystemClock implementation returns the current scheduler
time of the main UI thread. So, unless this scheduler is used to add
messages in the future, the SystemClock time never advances.
This CL adds two helper classes which extend and replace Robolectric's
ShadowLooper and ShadowMessageQueue.
1. We intercept messages being enqueued or deleted in the message queue.
Thus Robolectric's faulty scheduler gets never used. Instead, we keep
a blocking priority queue of messages, sorted first by execution time
and then by FIFO order to correctly emulate the real MessageQueue.
2. We also keep a list of deleted messages to know which messages to ignore
when they come up in the looper.
3. When a new Looper is started, we override the dummy loop to an actual
eternal while loop which waits for new messages, checks if they haven't
been deleted, and runs the messages (similar to what Robolectric's
MessageQueue would have done at this point).
Because we don't actually use the main UI thread in our tests, we can't rely
on the SystemClock to progress in any sensible manner. To overcome this issue,
we can use the auto-advancing FakeClock also used for the simulation tests.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=182912510
This achieves two things:
1. All our tests use the same type of assertions.
2. The tests currently run as instrumentation test can be moved to
Robolectric without changing the assertions.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=182910542
This fixes a very specific case where the data read has non-cached gaps
and a read-only CDS switches to read from upstream in a gap then the
cached data is deleted. When the CDS reaches the end of the gap, it
tries to open the next source. As there is no cached data, it tries to
continue with the already opened upstream data source but as it reached
end of the gap range, the code starts looping.
Also fixes infinite lock which occurs when in the previous case CDS isn't
readonly. It locks the content while filling the gap in the cache. At the
end of the gap, as the following data is deleted it tries to lock the
content for writing but the content is already locked by itself.
The last fix is preventing removal of CachedContent entry from
CachedContentIndex while associated key is locked.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=182595426
In certain conditions CacheDataSource switch to reading from upstream
without writing back to cache. This change makes it detect the change of
these conditions and switch to reading from or writing to cache.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=180901463
Also fix ClippingMediaSource to consider the start position an
artificial key-frame, and to properly offset the value returned
by getAdjustedSeekPositionUs.
Issue: #2882
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=179032243
In some occasions, we may want to discard a part of the buffered media to
improve playback quality. This CL adds this functionality by allowing the
loading media period to re-evaluate its buffer periodically (every 2s) and discard
chunks as it needs.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177958910
- 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.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177451295
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
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177008509
Currently EventMessage's presentationTimeMs is kept separately in
EventSampleStream. However, EventMessage's presentationTimeMs maybe used in
other places besides EventSampleStream, such as when handling `emsg' messages
targeting the player. This CL let EventMessage object to holds its
presentationTimeMs for such use cases.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176502938
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
This allows implementations of those classes to take into account the playback
speed for adaptive track selection and controlling when to resume the player.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176484361
This class implements MediaClock itself and handles the switching between
renderer and standalone media clock.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176340615
This will be needed when retaining a back-buffer. Being able to
query the first index allows us to work out when we've discarded
all samples that were obtained from a particular chunk, which
we'll use to determine when to remove chunks from
ChunkSampleStream.mediaChunks.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=175172085
MPD file may include multiple EventStreams in its Periods, which contains Events
that the application may need to handle/respond to.
This change adds support for parsing the EventStream/Event nodes from MPD
file, and exposing these EventStreams as a metadata sample stream that application
can respond in a similar way to other metadata events.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=175017697
This is the first CL in a series to add chunkless preparation support.
Also did a bit a tidying up in HlsSampleStreamWrappen and
HlsMasterPlaylistParserTest.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=174461737
This is not really useful with the DefaultAudioSink, but could be used in a
custom AudioSink when mixing audio from sources that have different sample
rates.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=172434482
Update the audio track selection logic in DefaultTrackSelector:
- When forcing lowest bitrate, use bitrate as tie-breaker when track scores are
the same, prefer the lower bitrate.
- Otherwise, use one of the following values as tie-breaker in order:
- ChannelCount
- SampleRate
- BitRate
If the format being checked is within renderer's capabilities, select it if it
has higher tie-break value, else, select it if it has lower tie-break value.
If all tie-break values are the same, prefer the already selected track.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=171803092
This change also replaces individual DownloadAction versions with a
single master version.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=171273880
Updates DefaultDrmSessionManager to use the prefered Widevine version (v1
on >= 23 and v0 for < 23).
For other DRM schemes, uses the first scheme found.
