This means we need convert some of the assertions in
ClippingMediaPeriod to contrain the output value to clipped
range instead, because unseekable media will return zero
as a start and seek position in all cases.
PiperOrigin-RevId: 721463824
This is necessary for prewarming. With prewarming, in a sequence of 2
videos, the second renderer is enabled before the first one is disabled,
and decode-only frames should be skipped before the second renderer is
started. The problem is that the second renderer will forward frames to
a BufferingVideoSink before it is started, which will delay the frame
handling and therefore not skip the frame before the renderer is
started.
PiperOrigin-RevId: 721032049
The exception occurred when an edit list started at a non-sync frame with no preceding sync frame. The fix searches forward for the next sync frame in such cases, preventing the out-of-bounds access.
Issue: androidx/media#2062
#cherrypick
PiperOrigin-RevId: 720642687
This avoids that these settings have to be resolved inline,
potentially blocking the main thread. They can be resolved at
the time of track selection on a background thread instead.
As a side effect, we can also remove the context parameter from
the Builder. Having the Context in the Builder is also a bad sign
in the first place because it implies the potentially blocking
calls can happen.
PiperOrigin-RevId: 720523139
The calls to Util.isTV and the interactions with the spatializer are
potentially blocking and were triggered from the constructor,
setAudioAttributes and release.
setAudioAttributes and release are both documented to be called by
the Player and should be triggered on the playback thread anyway.
The constructor initialization can be delayed until the spatializer
might be needed to avoid the blocking call.
The threading clean-up also allows to remove the lock from the
audioAttributes and the spatializer fields as they are now
accessed on the playback thread only.
PiperOrigin-RevId: 720488979
Usage:
* call queueInputBuffer() with initialization data or sample data in decode
order - updates the parser state
* call sampleLimitAfterSkippingNonReferenceFrame to identify if the sample
contains a frame without dependencies
PiperOrigin-RevId: 720098835
The file in Issue: androidx/media#2052 contains a cue with the following timecode:
```
0:00:00:00,0:00:00:00
```
The content of this cue seems to be some 'converted by' metadata, i.e.
it's basically a comment and clearly not intended to be shown on
screen (since it has zero duration).
There is some fiddly logic later in `SsaParser` to support overlapping
cues with the old `Subtitle` structure [1], and this logic gets tripped
up by the start and end time being equal, which results in a
**single**, empty `List<Cue>` being added - which trips up another
assumption that every SSA cue line results in at least two `List<Cue>`
entries (one containing the cue text, and another containing an empty
list to signal the end of the cues).
This fiddly logic is no longer required, because overlapping
`CuesWithTiming` objects can now be merged in `TextRenderer`, so there
is a possible future simplification to `SsaParser` which removes a lot
of this complexity.
[1] Added in <unknown commit>
PiperOrigin-RevId: 718380386
This requires some additional state handling to update the full
state atomically and guess placeholder states while updates are
in progress, using the newly added BackgroundThreadStateHander.
Some tests also needed to be adjusted to account for the fact
that the actual audio system change doesn't happen inline
anymore.
PiperOrigin-RevId: 716702141
To receive multiple schemes of metadata emitted by a stream, multiple
`MetadataRenderer` instances need to be used. This change makes
`DefaultRenderersFactory` add two metadata renderers by default.
PiperOrigin-RevId: 715790821
This is aligned with the documentation of `MediaCodec` which says the
timestamp of a buffer with `BUFFER_FLAG_END_OF_STREAM` should be
ignored:
https://developer.android.com/reference/android/media/MediaCodec#end-of-stream-handling
Add a test that exercises this by clipping off the end of a sample with
CEA-608 captions, because this creates an EOS-flagged buffer with a
non-EOS timestamp.
Also add a straightforward playback test for the
`fragmented_captions.mp4` sample.
PiperOrigin-RevId: 715716036
Currently, if a seek occurs when the audio sink was providing back pressure, the audio renderers will provide a durationToProgress based on the last non-writable sample prior to the seek.
Solution is to reset the value used for the `getDurationToProgress` when onPositionReset occurs.
This CL also makes sure to reset the value whenever the audiosink is flushed or reset.
PiperOrigin-RevId: 715361834
In `AudioTrackPositionTracker.hasPendingData()` method, `sourceEnded=false` is always passed. Thus, if the `AudioTimestampPoller` hasn't entered the `STATE_TIMESTAMP_ADVANCING` before the stream ends, then the current position can be inaccurately calculated in the absence of a correct `sourceEnded` value, and `AudioTrackPositionTracker.hasPendingData` will return a wrong result.
We used to avoid calling `getPlayheadPosition()` too often, which involves expensive binder request. However, here we need to adjust a bit back to compare the `writtenFrames` directly with `getPlayheadPosition()` after handling the end of stream, when not being able to declare `sourceEnded=true` can have significant difference.
PiperOrigin-RevId: 715358137
Deprecate BundledChunkExtractor.experimentalParseWithinGopSampleDependencies
in favour of
ChunkExtractor.experimentalSetCodecsToParseWithinGopSampleDependencies
which takes a VideoCodecFlags IntDef flags that represent a set of codecs.
Add a DASH test using the new API with an H.265 video.
PiperOrigin-RevId: 714901602
The initial discontinuity is currently only reported if
the period is prepared at the clip start position. However,
we need the discontinuity whenever we prepare at a non-zero
position (unless we know all samples are sync samples).
PiperOrigin-RevId: 713994155
We only care about the duration and don't want to force an initial
discontinuity.
The problem is not currently visible due to a bug in
ClippingMediaPeriod that ignores all dicontinuities if they don't
happen at the clip start position.
PiperOrigin-RevId: 713686333
