This means the content source is 'prepared' instantly with a
placeholder, enabling all further preparation steps (e.g. loading
preroll ads) while the actual content is still preparing. This
improvement can speed up the start time for prerolls in manifest-based
content that doesn't have a zero-time preparation step like progressive
media.
Issue: androidx/media#1358
PiperOrigin-RevId: 633640746
The class currently tracks the input format itself, updating it too
early in onConfigure() instead of onFlush(). This causes issues when
the format changes and the new values are applied to the silence
skipping logic of the old format. The fix is to use the base class
input format handling instead.
Issue: androidx/media#1352
PiperOrigin-RevId: 633232368
Due to loading a MediaSourceFactory via reflection:
Before this change
* the content type was logged as an integer, rather than a human-readable string
* `ClassNotFoundException` was swallowed silently by `maybeLoadSupplier` without telling the user what module they were missing
After:
* ClassNotFoundException is swallowed silently ONLY when determining supported types
* ClassNotFoundException is bubbled up when we are trying to play media without the corresponding module properly loaded
PiperOrigin-RevId: 632568989
The same doSomeWork iteration that triggers the silence skipping
discontinuity may already have another discontinuities (like
AUTO_TRANSITION), which should take precedence over the silence
skipping.
PiperOrigin-RevId: 632432851
When the period has loaded to the end of the source, the `period.getBufferedPositionUs` will be set to `C.TIME_END_OF_SOURCE`, which is a negative value. Thus, the original `continueLoadingPredicate` will never turn to `false`, as the `bufferedPositionUs` is definitely less than the target preload position that is expected to be positive.
In this change, we added `PreloadMediaSource.PreloadControl.onLoadedToTheEndOfSource(PreloadMediaSource)` to indicate that the source has loaded to the end. This allows the `DefaultPreloadManager` and the custom `PreloadMediaSource.PreloadControl` implementations to preload the next source or take other actions.
This bug was not revealed by the the `DefaultPreloadManagerTest` because the related tests were all using the `FakeMediaSource` and only setting the preload target to `STAGE_TIMELINE_REFRESHED`. Thus, the tests for testing the `invalidate()` behaviors were modified to use the real progressive media whenever possible, unless we have to use `FakeMediaSource` to squeeze a chance to do more operations between the preloading of sources to test some special scenarios.
PiperOrigin-RevId: 631776442
When the PlaybackParameters are set to their DEFAULT value, we
currently bypass the audio processor chain when determining the
output media position, under the assumption that no timestamp
change happens in the audio processors. This assumption may not
be true as the audio processors can change playout durations on
their own accord independent of the provided PlaybackParameters.
To correctly reflect any updated playout duration, we can just
always check the audio processor chain. The default implementation
will continue to assume that only the SonicAudioProcessor changes
the playout duration.
PiperOrigin-RevId: 631726112
To find the column of an index in a matrix the formula "column = index % width" should be used, not "column = index % height"
If inputFormat.tileCountVertical was equal to 1 then it would not throw an error, but instead result in the first tile of the bitmap always being returned. If inputFormat.tileCountVertical was larger than 1 then Bitmap.createBitmap() would throw an error as it would attempt to go outside the bounds of outputBitmap
ImageRenderTest has been updated to test for 2x3 images so that tileCountVertical != tileCountHorizontal. These tests passed previously because they were equal, so using tileCountVertical produced the same results as tileCountHorizontal
These subtitles were skipped because they are marked as shouldBeSkipped
based on their timestamps. The fix removes this flag entirely in
SimpleSubtitleDecoder because TextRenderer handles potential skipping
if needed.
PiperOrigin-RevId: 629717970
This lets apps update the task manager priority and send the
priority message to all renderers so that they can adjust their
resources if needed.
PiperOrigin-RevId: 629426058
This change adds a 'free-form' text genre to the existing
`bear-id3.mp3` sample, and adds a new sample with a 'numeric' genre ([9
is Metal](https://mutagen-specs.readthedocs.io/en/latest/id3/id3v2.4.0-frames.html#appendix-a-genre-list-from-id3v1)).
The samples were modified with:
```shell
$ id3edit --set-genre "Gorpcore" bear-id3.mp3
$ id3edit --set-genre "9" bear-id3-numeric-genre.mp3
```
Reading the numeric genre with `exiftool` shows the mapping back to
'Metal':
```
$ exiftool bear-id3-numeric-genre.mp3 | grep Genre
Genre : Metal
```
The playback dumps don't contain the genre because it's not yet
propagated to `MediaMetadata.genre`. That is done in a follow-up
change.
Issue: androidx/media#1305
PiperOrigin-RevId: 629043506
Some test cases are still using `ConcatenatingMediaSource`
even if they do not test specific features of the concatenating
source. Apparently these test have a slightly different timing
behavior when it comes to updating the `MediaPeriodQueue` and
emitting change events with analytics.
Using the playlist API ensures testing the future-proof code path.
PiperOrigin-RevId: 628413460
The first has a string genre, and various other values set, generated
from `sample.mp4` with the command below [1].
The second has a numeric genre, to test `gnre` atom parsing. This
parsing is currently broken, the fix is in a follow-up change. This
file was also generated from `sample.mp4` with the command below [2].
This change also includes `CommentFrame.text` in its `toString`
representation, otherwise there's no difference between e.g. different
levels of `ITUNESADVISORY` in the extractor dump files.
Issue: androidx/media#1305
-----
[1]
```shell
$ AP_PADDING="DEFAULT_PAD=0" \
AtomicParsley sample.mp4 \
--artist "Test Artist" \
--album "Test Album" \
--tracknum 2/12 \
--disk 2/3 \
--year 2024 \
--genre "Gorpcore" \
--bpm 120 \
--compilation true \
--advisory clean \
--gapless true \
--sortOrder artist "Sorting Artist" \
--sortOrder album "Sorting Album" \
--preventOptimizing \
-o sample_with_metadata.mp4
```
[2]
```shell
$ AP_PADDING="DEFAULT_PAD=0" \
AtomicParsley sample.mp4 \
--genre "Metal" \
--preventOptimizing \
-o sample_with_numeric_genre.mp4
```
PiperOrigin-RevId: 628345458
Compared to `release`, the `reset` method doesn't release the preload manager instance. This applies to the use case that an app wants to discard all the sources but keep the preload manager active for later usage.
Also rename the `releaseSourceInternal` to `removeSourceInternal`, as the latter sounds more generic for different preload manager implementations.
PiperOrigin-RevId: 623148723
Both `remove(MediaItem)` and `remove(MediaSource)` return a boolean suggesting that whether the preload manager is holding the corresponding `MediaSource` and it has been removed.
PiperOrigin-RevId: 622185427
This change makes sure the `DefaultLoadControl` would work
when passed to multiple players. It makes sure and unit tests
that the loading state of a player is maintained for each player
that is using `DefaultLoadControl`.
The targetBufferSize of the `DefaultAllocator` is increased
linearly for each player and memory is allocated in a simple
first-come-first-serve manner.
PiperOrigin-RevId: 622126523
The join mode is used for two cases: surface switching and mid-playback
enabling of video.
In both cases, we want to pretend to be ready despite not having rendered
a new "first frame". So far, we also avoided force-rendering the first
frame immediately because it causes a stuttering effect for the
mid-playback enable case. The surface switch case doesn't have this
stuttering issue as the same codec is used without interruption. Not
force-rendering the frame immediately causes the first-frame rendered
callback to arrive too early though, which may lead to cases where
apps hide shutter views too quickly.
This problem can be solved by only avoiding the force-render for the
mid-playback enabling case, but not for the surface switching case.
PiperOrigin-RevId: 622105916
Some media can read color info values from the bitstream
and may partially set some of the SDR default values in
Format.ColorInfo. Setting these default values for SDR can
confuse some codecs and may also prevent adaptive ABR
switches if not all ColorInfo values are set in exactly the
same way.
We can avoid any influence of HDR color info handling by
disabling setting the color info MediaFormat keys for SDR
video and also avoid codec reset at format changes if both
formats are SDR with slightly different ColorInfo settings.
To identify "SDR" ColorInfo instances, we need to do some
fuzzy matching as many of the default values are assumed to
match the SDR profile even if not set.
Issue: androidx/media#1158
PiperOrigin-RevId: 617473937
Add a new method `onUsedByPlayer(PreloadMediaSource)` for `PreloadMediaSource.PreloadControl`, which will be invoked when the player starts to use the `PreloadMediaSource`, or calling `PreloadMediaSource.preload` while the player is already using that source. `DefaultPreloadManager` will immediately preload the next source when receiving `onUsedByPlayer` event.
PiperOrigin-RevId: 616789121
Renderers may be enabled for subsequent media items as soon as the current media item's renderer's isEnded() returns true. Currently, when a player is set to pause, it stops all renderers that are `STATE_STARTED`. When a player is set to play, it starts all renderers that are enabled. This would include renderers that were enabled early for the subsequent media item. The solution is to only start renderers that are enabled by the current playing period.
Issue: androidx/media#1017
PiperOrigin-RevId: 614734437
Some devices just don't work very well with the synchronous
model, but are currently still excluded from our approximate
API 31 check. This change allows to include additional devices
or device groups by passing in the Context to the default
adapter.
It also adopts the workaround added in ebceee08c6
for Fire TV Smart devices that exhibit this issue.
PiperOrigin-RevId: 614642545
Also remove intermediate object allocations in
`Util.toByteArray(int...)`.
`Util.toByteArray(InputStream)` is kept (but deprecated) because it's
been part of the library for a while and might be in use by some apps.
The others are much newer, so the chance of usages outside the library
is very low, so we just remove them directly.
PiperOrigin-RevId: 613878453
Renderers may be enabled for subsequent media items as soon as the current media item's renderer's isEnded() returns true. When a renderer is being enabled and the player is 'playing', that renderer is also started. When playing a mixed playlist of images and content with audio & video, the player may skip some image items because the early-starting of the audio renderer causes a clock update.
A solution is to only start the "early-enabled" renderers at the point of media transition and add a condition on DefaultMediaClock to use the standalone clock when reading-ahead and the renderer clock source is not in a started state.
Issue: androidx/media#1017
PiperOrigin-RevId: 613231227
The old methods are deprecated and are called from the new
method for backwards compatibility of custom implementations.
'DefaultLoadControl' is unchanged, but `ExoPlayerImplInternal`
already calls the new methods passing in the `PlayerId`,
PiperOrigin-RevId: 613197190
`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 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
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
