Version

Media3 pre-release (alpha, beta or RC not in this list)

More version details

Media3 1.5.1 (with jellyfin-androidtv) and Media3 1.6.0-alpha03 (with Just Player)

Devices that reproduce the issue

Nvidia Shield TV pro 2019

Devices that do not reproduce the issue

No response

Reproducible in the demo app?

Not tested

Reproduction steps

• Download a demo video file with a frame rate that is not 60 fps and an audio track that is either DD, DDP or Dolby TrueHD
• Set the Nvidia Shield to always passthrough audio (don't use the Dolby Audio Processing option)
• Open Just Player
• Long press the settings icon and enable the frame rate matching option
• Play the video
• Open jellyfin-androidtv
• Enable the frame rate matching there as well
• Play the video
• Disable the frame rate matching option in both players and repeat the test

Expected result

The Soundbar/AVR system should report receiving a DD, DDP or a TrueHD audio, regardless of matching or not the framerate.

Actual result

With the frame rate matching option, multi channel PCM will nearly always be reported instead of the expected Dolby passthrough.

From my testings with the frame matching, about 10% of the time the Dolby passthrough actually works. I don't know if this is a timing issue with the activation of the frame rate matching or if it is something else.

When disabling the frame matching, the audio passthrough always works.

Media

• Example file 1: https://www.demolandia.net/downloads.html?id=46514202
• Example file 2: https://www.demolandia.net/downloads.html?id=2259505

Bug Report

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