LiveConfiguration and ClippingConfiguration have no effect. Live RTSP playback falls behind and crashes with OutOfMemoryException

Version

Media3 1.2.0

More version details

No response

Devices that reproduce the issue

Emulator running Android 13 API 33 x86_64
MicroTouch IC-215P-AA2 running Android 10

Devices that do not reproduce the issue

No response

Reproducible in the demo app?

Not tested

Reproduction steps

I'm trying to play a live RTSP stream, but if the network experiences temporary slowness, ExoPlayer falls behind the live edge and never catches up, even though I've set a target offset. If the lag continues, this causes ExoPlayer to build up a buffer of increasing size, eventually crashing the app from OutOfMemoryException after an hour or so. I only want to play the stream as close as possible to the live edge, immediately jumping to the latest if it falls behind. I'm currently trying to pass a ClippingConfiguration to prevent it from building up a buffer, but it doesn't appear to have any effect either. What am I missing here?

Steps to reproduce:

• In Emulator, start a player.
• Open Extended Controls -> Cellular and change Network type from Full to HSDPA to simulate lag.
• Wait a couple of seconds and change it back to Full.
• Observe that playback has fallen behind and won't catch up.

// Keep playback at the live edge to avoid falling behind and running out of memory for the buffer.
private val liveConfiguration = LiveConfiguration.Builder()
    .setTargetOffsetMs(100)
    .setMinOffsetMs(100)
    .setMaxOffsetMs(1000)
    .setMinPlaybackSpeed(0.8f)
    .setMaxPlaybackSpeed(1.2f)
    .build()

// Prevent storing all video that we've already seen to avoid out-of-memory error.
private val clippingConfiguration = ClippingConfiguration.Builder()
    .setRelativeToLiveWindow(true)
    .setStartPositionMs(0)
    .setEndPositionMs(1000)
    .build()

val mediaItem = MediaItem.Builder()
    .setUri(newUrl)
    .setLiveConfiguration(liveConfiguration)
    .setClippingConfiguration(clippingConfiguration)
    .build()
val mediaSource = RtspMediaSource.Factory().createMediaSource(mediaItem)

val player: ExoPlayer = ExoPlayer.Builder(ctx).build()
player.setMediaSource(mediaSource)
player.prepare()
player.play()

I've logged some properties from the player that show that it's buffered about 5 seconds ahead of the current position. However, it's maintaining that offset and failing to catch up like I would expect from the LiveConfiguration:

isLive: true 
playbackState: 3
bufferedPercentage: 0
bufferedPosition: 1475943
contentBufferedPosition: 1475943
contentPosition: 1471056
contentDuration: -9223372036854775807
currentLiveOffset: -9223372036854775807
duration: -9223372036854775807
currentPosition: 1471056
timeline.window.isLive: true
timeline.window.isDynamic: false
timeline.window.windowStartTimeMs: -9223372036854775807
timeline.window.currentUnixTimeMs: 1701209043405
timeline.window.defaultPositionMs: 0

Expected result

Desired behavior:

• Plays at live edge all the time
• If it encounters lag, it jumps to the live edge when it recovers.
• Prevent building up buffer and crashing the app.

Actual result

Actual behavior

• Playback falls behind and never catches up.
• Builds up buffer and crashes the app.

Media

Not applicable

Bug Report

• You will email the zip file produced by adb bugreport to android-media-github@google.com after filing this issue.