There is a race condition when initializing the downloads database. The
constructor of the DownloadManager kicks-off the database initialization
in its internal thread, but at the same time an app can try to access
the database directly through the manager's download index, e.g. doing
DonwloadManager manager = new ...
manager.getDownloadIndex().getDownload("id");
might enter DefaultDownloadIndex.ensureInitialized() from two threads.
When upgrading the downloads table from version 2 to version 3, the
first thread that enters the database transaction in ensureInitialized()
will drop and recreate the table using the v3 schema. Then, the second
thread will attempt to read from the newly created table using the v2
schema, which will fail.
This race condition was not introduced in 2.12 but was there already.
However, prior to 2.12, the code only dropped and re-created and the
table and did not attempt to read any data. Hence, if the race condition
happened, the code would drop and create the table twice, but no error
would occur.
Issue: #8420
#minor-release
PiperOrigin-RevId: 350745463
Without this feature it's impossible to nicely merge multiple sources
with different durations if these durations are not known exactly
before the start of playback.
Issue: #8422
PiperOrigin-RevId: 350567625
This allows to set preferences based on MIME type for video and audio.
The MIME type preference is applied after other explicit preferences
and restrictions (e.g. language or max resolution), but before implicit
preferences like bitrate.
Issue: #8320
PiperOrigin-RevId: 350550543
Add assertion to check an output format has been propagated before
returning an output buffer when operating MediaCodec in asynchronous
mode.
PiperOrigin-RevId: 350534918
`stop(true)` is almost the same as `clearMediaItems(); stop();`, except that
any player error isn't cleared. Clearing media items more clearly expresses the
intent.
PiperOrigin-RevId: 350516748
In many cases we just used "playback speed" as a detailed Javadoc
parameter or return type definition. This doesn't define which scale
the speed is using.
PlaybackParameters as the main point to set the speed already uses a
more precise wording to describe the value as a factor by which playback
will be sped up.
This change replaces other usages of "playback speed" with this wording
whereever we would usually add a unit, keeping "playback speed" for
summary statements etc to reference the general concept that doesn't
usually require a unit.
PiperOrigin-RevId: 350379139
The experimental setting shows positive results and can be turned
on by default. To avoid adaptation between HLS audio formats without
bitrates, we need to ensure that only formats with bitrates are
considered for adaptation.
Also added tests for these features.
Issue: #5111
PiperOrigin-RevId: 350315296
The AsynchronousMediaCodecCallback has logic to retain a pending
output format in case flush() is called. This commit fixes a case where
calling flush() again while an output format is pending would nullify
the pending output format.
A unit test is added in AsynchronousMediaCodecCallback but not the
AsynchronousMediaCodecAdapter. That is because the adapter operates
directly on top of MediaCodec, but Robolectric's ShadowMediaCodec
produces an output format on every MediaCodec.start(). This is
unrealistic when operating MediaCodec in asynchronous mode where we
need to call MediaCodec.start() after every MediaCodec.flush().
PiperOrigin-RevId: 350176659
- The AdaptiveTrackSelection doesn't need to use the experimental
terminolgy because the code is always triggered if there are multiple
adaptive selections.
- It's also confusing to pass the state on the outside after the object
creation, so moving everything into a simple control flow again where
the adaptation checkpoints are passed in via the constructor.
- Instead of triple arrays, we can use more readable named structures.
- The calculation of the checkpoints can be cleaned up to be more
readable by moving things to helper methods.
- The reserved bandwidth from all fixed track selections is really just
a special case of multiple parallel adaptataions. So this logic doesn't
need to be separate.
- The whole logic also didn't have test coverage so far. Added tests
for the actual adaptation using these checkpoints and the builder
calculating the checkpoints.
Overall this should be a no-op change.
PiperOrigin-RevId: 350162834
In this change -
Handling the sequence number discontinuity in caption channel packet header.
The processCurrentPacket returns if the packet length does not match with the currentIndex. That assumption is wrong. As per spec the the packet can end on reception of next cc_type = 0x3.
if responseCode and responseMessage ara available always throws an InvalidResponseCodeException instead of HttpDataSourceException, so in onPlayerError method the http status code and message can be used to decide what will be the next step.
*** Original commit ***
DataSource.open() throws if already opened.
Update DataSource implementations to throw an error if open() is called
when the DataSource is already open.
***
PiperOrigin-RevId: 348783425
Estimating the playback frame-rate, querying the display refresh rate, and
setting the surface frame-rate, are all closely related to one another. In
particular because setting the surface frame-rate can directly cause the
display refresh rate to change. It therefore makes sense to move surface
frame-rate adjustment into the helper.
This also makes it easier to re-use the logic in other video renderers.
PiperOrigin-RevId: 348455864
This replaces all the duplicated logic previously implemented in
FakeSampleStream and more closely follows the pattern of how
SampleStreams are used from real MediaPeriods.
Some tests needed adjustments because using real the SampleQueue
improved behaviour:
- Waiting for isLoading is only needed once even across period
boundaries because the real SampleQueue doesn't have the on/off
pattern.
- AnalyticsCollectorTest.playlistOperations() was wrongly asserting
that some pre-buffering events. The new version is more intuitively
correct we pre-buffer the second item during the initial loading
phase (thus period1seq1) and keep the buffer in the queue after
the removal operation.
PiperOrigin-RevId: 348440255
