`BasePreloadManager` coordinates the preloading for multiple sources based on the priorities defined by their `rankingData`. Customization is possible by extending this class. Apps will implement `TargetPreloadStatusControl` to return preload manager the target preload status for a given `rankingData` of the source.
`DefaultPreloadManager` extends from the above base class and uses `PreloadMediaSource` to preload media samples of the sources into memory. It also uses an integer `rankingData` that indicates the index of an item on the UI, and the priority of the items is determined by their adjacency to the current playing item. Apps can set the index of current playing item via `DefaultPreloadManager.setCurrentPlayingIndex` when the user swiping is detected.
PiperOrigin-RevId: 612829642
This implementation generates lint errors because neither the `first`
nor `second` parameters are used, and that's generally
unexpected/incorrect for a `Comparator` implementation since it should
always consider both its parameters.
PiperOrigin-RevId: 611039632
This change aims to prioritise tracks that have a 'smooth enough for
video' frame rate, without always selecting the track with the highest
frame rate.
In particular MP4 files extracted from motion photos sometimes have two
HEVC tracks, with the higher-res one having a very low frame rate (not
intended for use in video playback). Before this change
`DefaultTrackSelector` would pick the low-fps, high-res track.
This change adds a somewhat arbitrary 10fps threshold for "smooth video
playback", meaning any tracks above this threshold are selected in
preference to tracks below it. Within the tracks above the threshold
other attributes are used to select the preferred track. We deliberately
don't pick the highest-fps track (over pixel count and bitrate), because
most users would prefer to see a 30fps 4k track over a 60fps 720p track.
This change also includes a test MP4 file, extracted from the existing
`jpeg/pixel-motion-photo-2-hevc-tracks.jpg` file by logging
`mp4StartPosition` in
[`MotionPhotoDescription.getMotionPhotoMetadata`](b930b40a16/libraries/extractor/src/main/java/androidx/media3/extractor/jpeg/MotionPhotoDescription.java (L123))
and then using `dd`:
```
mp4StartPosition=2603594
$ dd if=jpeg/pixel-motion-photo-2-hevc-tracks.jpg \
of=mp4/pixel-motion-photo-2-hevc-tracks.mp4 \
bs=1 \
skip=2603594
```
----
This solution is in addition to the `JpegMotionPhotoExtractor` change
made specifically for these two-track motion photos in
5266c71b3a.
We will keep both changes, even though that change is not strictly
needed after this one, because adding the role flags helps to
communicate more clearly the intended usage of these tracks. This
change to consider FPS seems like a generally useful improvement to
`DefaultTrackSelector`, since it seems unlikely we would prefer a 5fps
video track over a 30fps one.
Issue: androidx/media#1051
PiperOrigin-RevId: 611015459
These audio offload failure recovery tests model the DefaultAudioSink failing at audio track init and write operations in offload mode. Playback should recover and try again as DefaultAudioSink will disable offload mode.
PiperOrigin-RevId: 610372935
Some devices supporting Performance Points for decoder coverage are missing coverage over the CDD requirements for H264. For these cases ExoPlayer should fall back to legacy resolution and frame rate support checks. If there is a stream evaluated as a PerformancePointCoverageResult of COVERAGE_RESULT_NO, then ExoPlayer checks for coverage of the 720p H264 CDD requirement.
Issue: google/ExoPlayer#10898
Issue: androidx/media#693
Issue: androidx/media#966
PiperOrigin-RevId: 609740128
Even when there's no display surface, MCVR can render frames to VFP, becuase by
the time the frame is processed:
- If there's still no surface, VFP will drop the frame;
- If there's surface, the processed frame would be rendered.
In short, placeholder surface is not needed in effect enabled playback. FWIW,
it is used to swallow frames directly from MediaCodec when there's no output
surface.
PiperOrigin-RevId: 609705222
This change makes ExoPlayerImplInternal.releaseInternal() unblock the
app thread if a runtime exception is thrown while releasing components
from the playback thread.
Before this change, if a runtime exception occurred during releasing
components in the playback thread, ExoPlayer.release() would wait for
`releaseTimeoutMs` and then raise a player error. With this change,
the player error is reported only when the playback thread is blocked
but if there is a runtime exception, the application thread is
unblocked.
The impact of this change is potentially fewer ANRs on
ExoPlayer.release() at the expense of less error reporting.
PiperOrigin-RevId: 609702549
We forgot to add it when we added AudioSink.release(). The commit
includes a test that ensures ForwardingAudioSink overrides all the
methods defined in the AudioSink interface.
PiperOrigin-RevId: 609402258
If the reading period has already advanced and a track reselection procs that only affects the reading period media, then ExoPlayer may try and apply the reading period's track selection incorrectly unto the playing period. ExoPlayer should apply the playing period's track selection to the playing period instead.
PiperOrigin-RevId: 609375077
If render error occurs due to AudioTrack initialization failure in offload mode, then ExoPlayer should allow retry as subsequent attempt will be with DefaultAudioSink disabling offload.
PiperOrigin-RevId: 609304897
The `PreloadMediaPeriod.selectTracksForPreloading` can be called for multiple times at the preloading stage (before the period is being played). For example, when the period resumes preloading. This change fix the assertion failure in `ProgressiveMediaPeriod.selectTracks` caused by the wrong implementation of `PreloadMediaPeriod.selectTracksForPreloading` when it is trying to retain the previously preloaded streams.
Also the `TrackSelectorResult` parameter is changed to a list of `ExoTrackSelection`. We should compare the selections only rather than considering the `RendererConfiguration` in the `TrackSelectorResult` to decide whether to retain the streams, as for preloading case the renderers haven't consumed the samples yet.
PiperOrigin-RevId: 609126868
This change:
1. Updates the implementation of
`FrameworkMediaDrm.requiresSecureDecoder` to include the
'force allow insecure decoder' workaround logic.
2. Removes the 'force allow insecure decoder' logic from MCR
3. Removes the `requiresSecureDecoder` field from MCR (it can just
be a local derived from `codecDrmSession` now).
PiperOrigin-RevId: 607664186
Also put back a comment in DownloadTracker that is still relevant on API 19.
Also deprecate PlaceholderSurface.newInstanceV17() in favour of just
newInstance()
`Uri.appendQueryParameter` is documented to encode its arguments, so
calling `Uri.encode` beforehand results in double-encoding.
Issue: androidx/media#1075
#minor-release
PiperOrigin-RevId: 604995441
Relax the regex to only check for hyphen which is required by the specification.
Issue: androidx/media#1028
#minor-release
PiperOrigin-RevId: 604719300
These are often the same for image tracks, since we usually drop the
whole image file (both the container and actual encoded image bytes)
into a single sample, but there are cases where we emit a track with
`containerMimeType=image/jpeg` but **no** samples (from
`JpegMotionPhotoExtractor`, to carry some metadata about the image +
video byte offsets).
It's therefore more correct to implement the `supportsFormat` check
based on `sampleMimeType`, so that these 'empty' image tracks are not
considered 'supported' by `ImageRenderer`.
#minor-release
PiperOrigin-RevId: 604672331
This was already done for the TrackGroup ids in <unknown commit>,
but in some scenarios only the Format instances are known and
it's helpful to be able to identify where they came from.
Issue: androidx/media#883
#minor-release
PiperOrigin-RevId: 604644039
Add a test for this consistency in `CompositeSequenceableLoaderTest`,
and also make the
`CompositeSequenceableLoaderTest.FakeSequenceableLoader` implementation
more realistic.
#minor-release
PiperOrigin-RevId: 604604103
Transformer export and ExoPlayer previewing both read inputColorInfo from
registerInputStream now, instead of maintaining a consistent input color
throughout multiple streams in a sequence.
Therefore, we can remove inputColor-related arguments and methods now.
PiperOrigin-RevId: 603423509
If seeking between last image sample and end of the file where the current stream is not final, then EoS sample will not be provided to `ImageRenderer`. ImageRenderer must still produce the last image sample.
PiperOrigin-RevId: 603312090
This happens when using `ExoPlayer.setVideoEffects()`.
This CL also fixes the first frame not rendered problem, originally solved in
7e65cce967, but rolled back in 5056dfaa2b because the solution introduces
the flash that is observed in b/292111083.
Before media3 1.1 release, the output size of `VideoFrameProcessor` is not
reported to the app. This was changed later after introducing
`CompositingVideoSinkProvider`, where the video size after processing **is**
reported to the app. After this CL, the size is again, not reported.
PiperOrigin-RevId: 602345087
The updated algorithm has two main improvements:
- The silence padding is not constant but a ratio of the original
silence (up to a defined max) to more naturally represent the
original gaps.
- The silence is not instantly going to zero, but uses a ramp down
and up for a smooth volume transition and also retains a small
percentage of the original noise for more natural "silences" that
still contain some background noise.
#minor-release
Issue: google/ExoPlayer#7423
PiperOrigin-RevId: 602322442
The return value of onConfigure must not be ignored as it specifies
the output format of the processor, which may be different from the
input format.
#minor-release
PiperOrigin-RevId: 601799440
Many usages are needed to support other deprecations and some
can be replaced by the recommended direct alternative.
Also replace links to deprecated/redirected dev site
PiperOrigin-RevId: 601795998
It's likely that we will merge these back into their `XXXDecoder`
implementations, but this smaller change allows us to avoid including
these public symbols in the upcoming release.
#minor-release
PiperOrigin-RevId: 601432629
