TS stream pixelating when subtitles are parsed during extraction

Version

Media3 1.4.0

More version details

The first commit with this issue is 0352db9. We weren't able to reproduce with 5c6f48e.

Devices that reproduce the issue

• Changhong GIU3A00 (Android 9)
• Changhong GIU6770 (Android 9)
• SEI Robotics Box R Lite 4K (Android 11)
• Amlogic TwinKey2 (Android 7.1.1)
• Amino Amigo7x (Android 12)

Devices that do not reproduce the issue

• Pixel 3a (Android 12)
• Lenovo TB-X606F (Android 10)

Reproducible in the demo app?

Yes

Reproduction steps

Play the file sent via email in Media3 demo app (either from local storage or via UDP).

Parsing subtitles during rendering fixes the issue:

textRenderer.experimentalSetLegacyDecodingEnabled(true)

mediaSourceFactory.experimentalParseSubtitlesDuringExtraction(false)

Expected result

The media plays without pixelating even when subtitles are parsed during extraction

Actual result

The media is pixelating with the following error in the logcat every time there is a pixelation in the video

Audio sink error
androidx.media3.exoplayer.audio.AudioSink$UnexpectedDiscontinuityException: Unexpected audio track timestamp discontinuity: expected 1000029511400, got 1000029799400
    at androidx.media3.exoplayer.audio.DefaultAudioSink.handleBuffer(DefaultAudioSink.java:997)
    at androidx.media3.exoplayer.audio.MediaCodecAudioRenderer.processOutputBuffer(MediaCodecAudioRenderer.java:773)
    at androidx.media3.exoplayer.mediacodec.MediaCodecRenderer.bypassRender(MediaCodecRenderer.java:2358)
    at androidx.media3.exoplayer.mediacodec.MediaCodecRenderer.render(MediaCodecRenderer.java:868)
    at androidx.media3.exoplayer.ExoPlayerImplInternal.doSomeWork(ExoPlayerImplInternal.java:1136)
    at androidx.media3.exoplayer.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:561)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:193)
    at android.os.HandlerThread.run(HandlerThread.java:65)

Media

Sent via email

Bug Report

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