This [commit](d175223cc6) was introduced not long ago (after 1.4.0-alpha01), but has the release note added to the alpha01 release. Moving this piece of note to "unreleased changes" so that it will be included in the 1.4.0-alpha02 release note as a new change.
PiperOrigin-RevId: 639768495
Switch from 4-channel RGBA_16F lookup texture to 1-channel R_16F.
Do not use a bitmap when creating the lookup table texture.
Instead, fill the texture directly.
Do not manually convert 32-bit float to 16-bit. Instead, let OpenGL
libraries do this for us.
PiperOrigin-RevId: 639717235
The CMCD data was incorrectly added to the `dataSpec` of the media segment instead of the init segment.
Also relaxed the condition for playbackRate to be C.RATE_UNSET when creating an instance of CmcdData.Factory as there was nothing enforcing this check.
#minor-release
PiperOrigin-RevId: 639046080
This is a relatively small change, and massively simplifies the work
needed for an app to consume Kotlin Multiplatform resources (without a
full `KmpResourceDataSource` implementation, which poses some
dependency challenges for now).
Issue: androidx/media#1405
PiperOrigin-RevId: 638991375
When running in asynchronous mode, MediaCodec will be running the CPU to signal input and output buffers being made available for use by the player. With ExoPlayer.experimentalSetDynamicSchedulingEnabled set to true, ExoPlayer will wakeup to make rendering progress when MediaCodec raises these signals. In this way, ExoPlayer work will align more closely with CPU wake-cycles.
PiperOrigin-RevId: 638962108
Currently ExoPlayer schedules its main work loop on a 10 ms interval. When renderers cannot make any more progress (ex: hardware buffers are fully written with audio data), ExoPlayer should be able to schedule the next work task further than 10ms out into the future.
Through `experimentalSetDynamicSchedulingEnabled` and these changes to `MediaCodecAudioRenderer`, ExoPlayer can use the data provided by the audio renderer to dynamically schedule its work tasks based on when it is expected that progress can be made.
PiperOrigin-RevId: 638677454
Currently ExoPlayer schedules its main work loop on a 10 ms interval. When renderers cannot make any more progress(ex: hardware buffers are fully written with audio data), ExoPlayer should be able to schedule the next work task further than 10Ms out.
Through `experimentalSetDynamicSchedulingEnabled`, ExoPlayer will dynamically schedule its work tasks based on when renderers are expected to be able to make progress.
PiperOrigin-RevId: 638676318
PQ and HLG have different luminance ranges (max 10k nits and max 1k nits resp). In GL, colors work in a normalised 0 to 1 scale, so for PQ content, 1=10k nits and and for HLG content, 1=1k nits.
This cl scales and normalises PQ content appropriately so that all HDR content works in the HLG luminance range. This fixes two things
1. Conversions between HLG and PQ are "fixed" (before the output colors looked too bright or too dark depending on which way you are converting)
2. color-altering effects will be able to work consistently across HLG and PQ content
1 is tested in this cl. 2 will be tested when ultra HDR overlays are implemented, both cases have been manually tested to ensure the output looks correct on a screen.
PiperOrigin-RevId: 636851701
`Info` header is used for CBR files, but in some cases not **every**
frame in these files is the same size. This change stops using the
single frame after the `Info` frame as the 'template' (and assuming all
subsequent frames are the same size/bitrate), and instead derives the
bitrate from fields in the `Info` header. This works for files which are
'almost' constant bitrate, like the one in Issue: androidx/media#1376 where every
frame is either 1044 or 1045 bytes except the one immediately after the
`Info` frame which is 104 bytes (32kbps), resulting in a wildly
incorrect duration calculation.
PiperOrigin-RevId: 636151605
This change was originally made in 6f8249184b
It was then accidentally lost in when `Cea708Parser` was merged back
into `Cea708Decoder` in 51b4fa2cc8.
This is the only change made to the actual 'decoding' logic in
`Cea708Parser` between it being split from `Cea708Decoder` and merged
back in again, all the other changes in this period relate to the
implementation of the `SubtitleParser` interface, so don't need to be
preserved in `Cea708Decoder`:
51b4fa2cc8/libraries/extractor/src/main/java/androidx/media3/extractor/text/cea/Cea708Parser.java
`Cea608Parser` was also merged back into `Cea608Decoder` in
25498b151b
and so is vulnerable to the same risk of accidental loss of changes. To
be sure, I also checked the history of this file:
25498b151b/libraries/extractor/src/main/java/androidx/media3/extractor/text/cea/Cea608Parser.java
The only 'decoding logic' change there is 379cb3ba54,
which was also lost in 25498b151b.
I will send a separate change to resolve this.
PiperOrigin-RevId: 635796696
This is a fix for the fix in 319854d624. The original fix did
not reset the firstPeriodId to avoid any id clashes with future
updates. This however only works under the assumption that the
next manifest load at the next call to prepare() is exactly the
same as the current manifest. This is not true unless the call
happens very quickly (and may fail even then). Instead we should
keep the existing manifest directly as a reference so we can use
it to find the number of removed periods when we get a new manifest
at the next call to prepare().
Issue: androidx/media#1329
PiperOrigin-RevId: 634853524
This case is most likely to happen when re-preparing a multi-period
live stream after an error. The live timeline can easily move on to
new periods in the meantime, creating this type of update.
The behavior before this change has two bugs:
- The player resolves the new start position to a subsequent period
that existed in the old timeline, or ends playback if that cannot
be found. The more useful behavior is to restart playback in the
same live item if it still exists.
- MaskingMediaSource creates a pending MaskingMediaPeriod using the
old timeline and then attempts to create the real period from the
updated source. This fails because MediaSource.createPeriod is
called with a periodUid that does no longer exist at this point.
We already have logic to not override the start position and need
to extend this to also not prepare the real source.
Issue: androidx/media#1329
PiperOrigin-RevId: 634833030
For each item, AudioGraphInput now pads the input audio track with silence
to the duration given in onMediaItemChanged.
Possibly resolves Issue: androidx/media#921 .
PiperOrigin-RevId: 634753721
To override this change, and go back to parsing during rendering,
apps must make two method calls:
1. `MediaSource.Factory.experimentalParseSubtitlesDuringExtraction(false)`
2. `TextRenderer.experimentalSetLegacyDecodingEnabled(true)`
PiperOrigin-RevId: 634262798
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
This treats heic as a separate mimetype to heif (even though heic files are a subset of heif files). This is in line with other platform classes like android.content.ContentResolver
https://developer.android.com/media/platform/supported-formats#image-formats was updated to include avif support or API level 34, so added this MimeType as well and updated our associated util.
solves Issue: androidx/media#1373
PiperOrigin-RevId: 633616214
This allows apps to better detect when the platform
reclaims a codec. This requires adding the error code
to MediaCodecDecoderException.
PiperOrigin-RevId: 633588914
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
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
For offloaded playback, reset the tracking field for stream completion in `DefaultAudioSink` prior to calling `AudioTrack.stop()` so that `AudioTrack.StreamEventCallback#onPresentationEnded` correctly identifies when all pending data has been played.
#minor-release
PiperOrigin-RevId: 631744805
When converting `MediaMetadata` to the legacy `MediaDescriptionCompat`
the selection and order of properties to use has been aligned with the
behavior of media1. This selection is relevant for users that use a
platform or legacy controller or browser. Before and up to the current
API version 34, this includes System UI, Android Auto/Automotive and
AVRCP (Bluetooth).
PiperOrigin-RevId: 630999535
The second stage of the changes remove the conversion to linear colors in the SDR effects pipeline by default.
also resolves Issue: androidx/media#1050
PiperOrigin-RevId: 630108296
When the AdTagLoader is deactivated because of a player error, the
error callback is already pending on the app's main thread, but not
yet executed. This means the VideoAdPlayerCallback instances
registered in AdTagLoader won't receive this error event if the
Player.Listener is immediately removed from AdTagLoader.
This can be fixed by postponing the deregistration until after
already pending messages have been handled. As this means other
callbacks can be triggered now with player==null, this check needs
to be added to other callbacks to avoid handling stale events.
Issue: androidx/media#1334
PiperOrigin-RevId: 630068222
The last rebuffer time was being updated erroneously, even in the absence of rebuffering events, resulting in incorrect `bs` (buffer starvation) key in CMCD.
Issue: androidx/media#1124
PiperOrigin-RevId: 629731796
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 also includes mapping the numeric ID3v1 codes to their
string equivalents before setting them into `MediaMetadata`. This
mapping already existed, but it was previously only used when parsing
MP4 `gnre` atoms.
Issue: androidx/media#1305
PiperOrigin-RevId: 629113480
In some versions of Cronet, the request provided by the callback is not always the same. This leads to callback not completing and request timing out.
The fix changes from having one `UrlRequestCallback` per `CronetDataSource` to one `UrlRequestCallback` per `UrlRequest`. Everytime a current request is canceled, the current callback is closed.
PiperOrigin-RevId: 627379153
For LL-HLS, the non-primary playlists originally keep reloading even after the primary playlist has been changed to another one. The reason being this is to check if the hinted(#EXT-X-PRELOAD-HINT) resource has been published or removed. If removed, the loading of it should be canceled, per the suggestion in the HLS spec:
"A Client SHOULD cancel a request for a hinted resource if it is not present in a subsequent Playlist update, such as in an EXT-X-PRELOAD-HINT tag or as part of another tag such as EXT-X-PART. The client SHOULD ignore the results of such requests."
However, keeping the non-primary playlists reloading is not optimal. As a solution, we trigger the playlist reloading only when there is a preload chunk loading instead of every time after we have processed the playlist. Compared to the original implementation, this will save the requests of reloading non-primary playlist after we have taken action upon the preload chunk being published or removed.
Issue: androidx/media#1240
PiperOrigin-RevId: 626038032
Transformer's input shouldn't be constrained to the number of playable audio channels on the current device because the media may be edited (to mix channels for example) or encoded for playback on another device (a server for example).
PiperOrigin-RevId: 625604243
The raw audio decoder's output audio format is stereo when the number of input
channels is (for example) 10 channels. Add a temporary workaround that uses the
input channel count for raw audio. This code should be removed in future when
we bypass the decoder entirely for raw audio.
Tested manually on a WAVE file with 18 audio channels.
PiperOrigin-RevId: 625307624
Some seek operations are currently filtered in the base classes if
the target index is not explicitly specified and the implicitly
assumed operation doesn't have an obvious target index. (Example:
calling seekToNext() at the last item in a playlist)
This is too opinionated because the actual player implementation
using this base class may be able to handle this seek request (e.g.
by adding new items on the fly or using other logic to select
the most suitable next item).
This can be solved by forwarding all seek requests to the respective
handler methods even if they are a presumed no-op. Also clarify the
Javadoc that the provided index is just an assumption if it wasn't
provided explicitly in the method call.
PiperOrigin-RevId: 624887116
A live window with changing duration can't be properly
displayed in a media notification. The duration constantly
changes and creates a nervous jumping seekbar that is not
really useful.
This change sets the duration for live streams to `C.TIME_UNSET`
when publishing the player state to the platform session. This
way no duration is sent to the platform session which prevents
media controls from drawing a seekbar.
Issue: androidx/media#1256
PiperOrigin-RevId: 624112541
When delegating EMSG samples in `HlsSampleStreamWrapper`,
the offset passed into `sampleMetadata(..)` of the delegate
`TrackOutput` must be zero because it is called immediately
after `sampleData(..)` is called.
The condition to trigger this issue is that more than one
metadata samples are pending in `pendingMetadataSampleInfos`
of `FragmentedMp4Extractor` which produces non-zero offsets.
Issue: androidx/media#1002
Issue: androidx/media#1203
PiperOrigin-RevId: 623210835
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
In offloaded audio playback, the `DefaultAudioSink` should use the `AudioTrack.StreamEventCallback` `onPresentationEnded` to note whether the AudioTrack has completed playing all pending data.
PiperOrigin-RevId: 622885399
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
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
This API additions help an app to implement the lifecycle of a MediaSessionService
properly and in consistency with the `MediaSessionService` being in the foreground
or not.
Not properly implementing `onTaskRemoved` is the main reason for crashes and
confusion. This change provides `MediaSessionService` with a default
implementation that avoids crashes of the service. This default implementation
uses the new API provided with this change just as an app can do.
Issue: androidx/media#1219
PiperOrigin-RevId: 621874838
Makes OverlayFrameAnchor works as described in the OverlaySettings documentation. Currently the code does the opposite e.g setting the anchor to (+1,-1) makes the code anchor to the top left rather than the bottom right.
PiperOrigin-RevId: 621585558
If the mixer is reset without resetting maxPositionOfRemovedSources and
then reused, the value of maxPositionOfRemovedSources can be outdated,
leading to an incorrect number of bytes being output by the mixer.
PiperOrigin-RevId: 619832502
