From ANSI-CTA-608-E R-2014 section 8.4:
> When closed captioning is used on line 21, field 2, it shall conform
> to all of the applicable specifications and recommended practices as
> defined for field 1 services with the following differences:
> 1. The non-printing character of the miscellaneous control-character
> pairs that fall in the range of 0x14, 0x20 to 0x14, 0x2F in field 1,
> shall be replaced with 0x15, 0x20 to 0x15, 0x2F when used in field
> 2.
> 2. The non-printing character of the miscellaneous control-character
> pairs that fall in the range of 0x1C, 0x20 to 0x1C, 0x2F in field
> 1, shall be replaced with 0x1D, 0x20 to 0x1D, 0x2F when used in
> field 2.
This basically means that `cc1=0x15` in field 2 should be interpreted as
`cc1=0x14` in field 1, and same for `0x1D -> 0x1C`.
The `isMiscCode` method above already handles this by ignoring the LSB
(the only difference between `0x14` and `0x15`, and `0x1C` and `0x1D`)
by AND-ing with `0xF6` instead of `0xF7`. This change uses the same
trick in `isServiceSwitchCommand`.
Issue: google/ExoPlayer#10666
#minor-release
PiperOrigin-RevId: 483927506
(cherry picked from commit 8c0f7827e2)
Currently, repeating the same item (via seekNext/Previous) implicitly
results in a seek to the default position of the current item, which
looks exactly the same as a direct seek. As a result, we don't send
onMediaItemTransition as we would for every other seekNext/Previous
call.
This can be fixed by explicitly marking the repeat case in the internal
BasePlayer/ExoPlayerImpl methods, so that the callback can be triggered.
Issue: google/ExoPlayer#10667
PiperOrigin-RevId: 481951788
(cherry picked from commit f850206c51)
We already have logic to end all session except the current one if the
current one doesn't have a MediaPeriodId yet. This is assuming that this
only happens after a seek on the app side where the player doesn't have
detailled knowledge about the MediaPeriodIds yet.
Currently this logic isn't triggered if the window we are coming from
doesn't have its MediaPeriodId either as we run into another check that
keeps sessions around until we have a valid windowSequenceNumber.
Swapping both conditions fixes this case without breaking any of the
other known transition scenarios.
Issue: androidx/media#180
PiperOrigin-RevId: 480866465
(cherry picked from commit 409c9f874c)
If the sample type is Dolby Vision and the display does not support Dolby Vision, then the capabilities DecoderSupport flag is set to DECODER_SUPPORT_FALLBACK_MIMETYPE. This denotes that the renderer will use a decoder for a fallback mimetype if possible. This alters track selection as tracks with DecoderSupport DECODER_SUPPORT_PRIMARY are preferred.
UnitTests included
-DefaultTrackSelector test that checks track selection reordering with DECODER_SUPPORT_FALLBACK_MIMETYPE
-MediaCodecVideoRenderer test that checks setting of DecoderSupport flag based on Display's Dolby Vision support
Issue: google/ExoPlayer#8944
PiperOrigin-RevId: 480040876
(cherry picked from commit 266de1b21b)
`PlaybackStateCompat.toKeyCode(command)` was replaced by our
own implementation of `toKeyCode()`. The legacy implementation used PLAY and PAUSE, while the new implementation uses PLAY_PAUSE. This made `pause` a pending intent that attempt to start the service in the foreground, but `service.startForeground()` won't be called in `MediaNotificationManager.updateNotificationInternal` when paused.
PiperOrigin-RevId: 476895752
(cherry picked from commit acd9e581c4)
This allows to access the associated functionality of AudioTrack and
fills a feature gap to MediaPlayer, which has a similar method.
Issue: androidx/media#135
PiperOrigin-RevId: 476398964
(cherry picked from commit a069ebda47)
If the sample type is dolby vision and the following conditions match
a)There is a supported alternative codec mimetype
b)Display does not support Dolby Vision
Then getDecoderInfos will return the alternative types.
Issue: google/ExoPlayer#9794
PiperOrigin-RevId: 476356223
(cherry picked from commit ed79f4696f)
The ClearKey CDM will attach an 'invalid' URL in `KeyRequest` objects,
when the documentation states this should be an empty string if a
default URL is not known.
#minor-release
PiperOrigin-RevId: 476113513
(cherry picked from commit 715c948004)
If the back buffer is using too much memory, there is a risk
playback could get stuck because LoadControl refuses to load
further data. This eventually results in a stuck-buffering
playback error.
We can detect this case, clear the back buffer and then ask
the LoadControl again to avoid failing playback in such a case.
PiperOrigin-RevId: 472679797
(cherry picked from commit 310e0fec5c)
The assertion asserts against a `Period` and an `AdPlaybackState` which actually
asserts against a resolved ad which is what `ExoPlayerImplInternal` does later and
what gives us a `SEEK_ADJUSTMENT`. However, this assertion is not required at the
moment of masking, because we are sure that the resolved seek results in a content
period and never an ad period.
#minor-release
Issue: androidx/media#122
PiperOrigin-RevId: 471827072
(cherry picked from commit 73f86682e9)
The specified CMake version doesn't work with the latest
Android Studio releases. Updating to a more recent version
fixes the problem.
Issue: google/ExoPlayer#9933
PiperOrigin-RevId: 467634063
(cherry picked from commit 9e1d4f6fd6)
When the player finishes playback and reaches the STATE_ENDED,
the notification remains visible with a pause button and the
service is kept in the foreground. This is a bug.
With this change, when the player reaches the STATE_ENDED, the
service is stopped from the foreground and a notification is shown
with a play button. If the play icon is tapped, the player will restart
playback of the last played item. Playing the last played item again
is the existing behavior when play/pause commands are received from
the legacy MediaSession (e.g. BT headset buttons).
#minor-release
Issue: google/ExoPlayer#112
PiperOrigin-RevId: 467231509
(cherry picked from commit 7a7e1eb23b)
From NDK 23.1.7779620 and above, the arm64-v8a ABI needs additional
build flags to correctly link the ffmpeg libraries.
Issue: google/ExoPlayer#9933
PiperOrigin-RevId: 467161973
(cherry picked from commit 5874327e5d)
In some cases, the IMA SDK fails to call the expected loadAd
event to load the next ad to play. This is (potentially) the
only remaining case where playback can get stuck due to missing
calls from IMA as the player doesn't even have a MediaSource at
this stage and is only waiting for IMA to provide the ad URL.
We can reuse the existing adPreloadTimeoutMs that was added for
a similar purpose (when preloading the first ad in the group).
The JavaDoc matches this purpose as well and the default timeout
is appropriate since we expect to get the loadAd call immediately.
Issue: google/ExoPlayer#10510
PiperOrigin-RevId: 466953617
(cherry picked from commit b125d45a63)
Adds a new event to AudioOffloadListener to get the offload state of the track, which indicates when software decoding is taking place.
PiperOrigin-RevId: 465264362
(cherry picked from commit 7893531888)
We currently clear all pending messages, including the one that flushes
pending commands to the MediaSession. To ensure all commands that have
been called before controller.release() are still sent, we can manually
trigger the flush message from the release call.
Related to handling the final flush because disconnecting the controller,
MediaSessionStub didn't post the removal of the controller to the
session thread, creating a race condition between removing the controller
and actually handling the flush.
Issue: androidx/media#99
PiperOrigin-RevId: 462342860
(cherry picked from commit ee209690cb)
Add a Builder to constructor DefaultMediaNotificationProvider. The
Builder can also set the provider's:
- notification ID
- notification channel ID
- notification channel name
The change adds an API for apps to set the small icon in notifications.
#minor-release
Issue: androidx/media#104
PiperOrigin-RevId: 462111536
(cherry picked from commit 436ff6d86a)
Some commands are run asynchronously and subsequent commands need
to wait until the previous one finished. This can be supported
by returning a Future for each command and using the existing
command execution logic to wait for each Future to complete.
As some MediaSessionStub code is now executed delayed to when it
was originally created, we also need to check if the session is
not released before triggering any actions or sending result codes.
Issue: androidx/media#85
PiperOrigin-RevId: 462101136
(cherry picked from commit 7cb7636ed9)
We currently start a simple Thread to release AudioTracks
asynchronously. If many AudioTracks are released at the same
time, this may lead to OOM situations because we attempt to
create multiple new threads.
This can be improved by using a shared SingleThreadExecutor.
In the simple case of one simmultaneous release, it's exactly
the same behavior as before: create a thread and release it
as soon as it's done. For multiple simultanous releases we
get the advantage of sharing a single thread to avoid creating
more than one at the same time.
Issue: google/ExoPlayer#10057
PiperOrigin-RevId: 460698942
(cherry picked from commit 9a616c0cee)
Based on
https://developer.android.com/reference/android/media/MediaCodec#using-an-output-surface,
frame dropping behaviour depends on the target SDK version.
After this change transformer will only use
MediaFormat#KEY_ALLOW_FRAME_DROP if both the target and system SDK
version are at least 29 and default to its pre 29 behaviour where each
decoder output frame must be processed before a new one is rendered
to prevent frame dropping otherwise.
Also remove deprecated Transformer.Builder constructor without a
context and the context setter.
PiperOrigin-RevId: 453971097
(cherry picked from commit a105d033a7)
