Black screen flickering when promoting video quality track

[changxiangzhong]

Version

Media3 1.3.0

More version details

No response

Devices that reproduce the issue

Philips OLED TV 706. Device name and firmware version specified as following

[ro.boot.device_name]: [65OLED706/12]
[ro.build.product]: [PH1M_EA_9970A]
[ro.vendor.build.fingerprint]: [Philips/PH1M_EA_9970A/PH1M_EA_9970A:11/RTT2.211108.001/2717:user/release-keys]

Devices that do not reproduce the issue

Broadcom 72180 boxes

Reproducible in the demo app?

Yes

Reproduction steps

Steps

• Kill the previous exoplayer demo
• Apply the following patch/channel
• Start the channel
• Pay attention to VIDEO BITRATE PROMOTING, and you'll see the black screen flickering. A sample video has been uploaded to here.

Use the following patch on media.exolist.json

  {
    "name": "Telia",
    "samples": [
      {
        "name": "NRK1 HD - Telia Solna",
        "uri": "https://director.streaming.telia.com/tvm-packager-prod/group11/6530d589890ef35940120dc3/manifest.mpd?adap=default",
        "drm_scheme": "widevine",
        "drm_license_uri": "https://lic.drmtoday.com/license-proxy-widevine/cenc/?specConform=true",
        "drm_key_request_properties": {
          "x-dt-custom-data": "TO-BE-SENT-THROUGH-SECRET-CHANNEL"
        }
      },

Expected result

Smooth video bit-rate transition to high

Actual result

A black screen flickering during video bit-rate promoting

Media

  {
    "name": "Telia",
    "samples": [
      {
        "name": "NRK1 HD - Telia Solna",
        "uri": "https://director.streaming.telia.com/tvm-packager-prod/group11/6530d589890ef35940120dc3/manifest.mpd?adap=default",
        "drm_scheme": "widevine",
        "drm_license_uri": "https://lic.drmtoday.com/license-proxy-widevine/cenc/?specConform=true",
        "drm_key_request_properties": {
          "x-dt-custom-data": "TO-BE-SENT-THROUGH-SECRET-CHANNEL"
        }
      },

Bug Report

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

[tonihei]

Just based on the symptoms, this sounds like the same problem as the one in #1158. Could you check if the problem reproduces with Media3 1.0.2 or 1.1.0, or if you are able to build from source check if the problem started occurring with 8a73d8d?

[changxiangzhong]

@tonihei, the issue is reproducible in release 1.1.0 and exoplayer 2.18.5. so not the same as #1158

[tonihei]

Have you also tried 1.0.2? #1158 started happening between 1.0.2 and 1.1.0.

[changxiangzhong]

Just tried 1.0.2, still reproducible

[tonihei]

Thanks for checking, so it's indeed not the same issue. Given your media is DRM protected, it might be you are running in the same problem that was originally reported in google/ExoPlayer#8196. This was a platform limitation on some devices up to API 30/31 that caused a black frame to be shown on some DRM-protected transitions. If this is the case, then there is unfortunately not much we can do from within our library. If you think it's something else or was introduced by some version of ExoPlayer, please let us know. I also checked your bugreport, but couldn't see anything suspicious either.

[changxiangzhong]

Thanks for the clarification - I confirm it's REPRODUCIBLE based upon google/ExoPlayer#8196 issue - A black screen flickering happens whenever I change the video track manually.

This this issue has been reproduced on the following SoCs? Any other known affected platforms?

• Snapdragon 865
• MediaTek 9970

[tonihei]

Thanks for confirming! I'll mark it as duplicate then.

This this issue has been reproduced on the following SoCs? Any other known affected platforms?

I'm afraid we don't have any data on this as there is also no known workaround we could apply to avoid the issue on the affected devices.