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Cannot get duration or seek from an SSAI live content #10764

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Cannot get duration or seek from an SSAI live content#10764
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tonihei
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bug

Description

@247az
247az
opened on Nov 10, 2022

ExoPlayer Version

2.17.1

Devices that reproduce the issue

Any devices

Devices that do not reproduce the issue

No response

Reproducible in the demo app?

Yes

Reproduction steps

  1. Open the demo app
  2. Open the SSAI content below (HLS format)
    Screenshot_20221109_165515
  3. Cannot get duration of the content, seekbar do not show progress, and you cannot seek on the seekbar.
    Screenshot_20221109_165536

Expected result

It is possible to get the duration of the SSAI content and display it.

Actual result

Cannot get duration of the content, seekbar do not show progress, and you cannot seek on the seekbar.

Media

You can reproduce and see the situation on the Demo app

Bug Report

Activity

  1. 247az
    added
    bug
    needs triage
    on Nov 10, 2022
  2. tonihei
    self-assigned this
    on Nov 10, 2022

  3. tonihei commented on Nov 10, 2022

    @tonihei
    tonihei
    on Nov 10, 2022
    Collaborator

    As the title of the stream indicates, this is a live stream and ExoPlayer's SSAI media source currently removes the duration for live streams. I'm not entirely sure, but this may have been accidental and I can look into adding it back.

  4. tonihei
    removed
    needs triage
    on Nov 10, 2022

  5. donny9095 commented on Nov 10, 2022

    @donny9095
    donny9095
    on Nov 10, 2022

    I have the same problem

  6. 247az commented on Nov 11, 2022

    @247az
    247az
    on Nov 11, 2022
    Author

    @tonihei
    Thank you, Tonihei.
    I hope you can look into it and fix it soon !

  7. microkatz
    added 2 commits that reference this issue on Nov 16, 2022

    Calculate SSAI window duration for live periods with unset duration.

    20151b9

    Calculate SSAI window duration for live periods with unset duration.

    7a7d083

  8. donny9095 commented on Nov 22, 2022

    @donny9095
    donny9095
    on Nov 22, 2022

    @tonihei
    Sorry to bother you, but do you have any new information on this issue ? Can you fix and release it to the next version ?

  9. microkatz
    added 2 commits that reference this issue on Nov 22, 2022

    Calculate SSAI window duration for live periods with unset duration.

    bf67d1c

    Calculate SSAI window duration for live periods with unset duration.

    5def6e4

  10. 247az commented on Nov 29, 2022

    @247az
    247az
    on Nov 29, 2022
    Author

    @tonihei
    I have rechecked this issue on the latest version. But there seems to be another problem going on.
    The version can be seen on the image I attached, duration is showing a negative value.
    I'm not sure exactly how to reproduce it, but I think you can reproduce this error by following the steps below:

    1. Open the content HLS Live: Big Buck Bunny (mid) 3 ads [10/10/10s]
    2. After the Ad is finished playing, you seek it back to position 0. (Or seek it to the end position, then seek it to position 0 again).
    3. You can see duration is showing negative value.

    You can also see the problem in the video I attached.

    Screenshot:
    Screenshot_20221129_125435

    Video:
    https://user-images.githubusercontent.com/114720380/204438689-638f45b5-e6ad-4361-8dbc-e6e049c42309.mp4

    Can you please check this problem ? Thank you.

  11. tonihei commented on Nov 29, 2022

    @tonihei
    tonihei
    on Nov 29, 2022
    Collaborator

    What you circled in the screenshot is the current position, not the duration. The duration is the 01:10 next to it. The position may become negative in a live stream if you seek back or pause and then fall out of the live window. This may mean that future loads may fail, but playback is likely to continue initially with the data that has already been buffered.

  12. 247az commented on Nov 30, 2022

    @247az
    247az
    on Nov 30, 2022
    Author

    @tonihei
    Thank you for your reply.

    What you circled in the screenshot is the current position, not the duration. The duration is the 01:10 next to it.

    Oh, sorry, my bad, I mean the current position, not the duration.

    The position may become negative in a live stream if you seek back or pause and then fall out of the live window. This may mean that future loads may fail, but playback is likely to continue initially with the data that has already been buffered.

    Sorry, but this problem can be fixed ?

  13. tonihei commented on Nov 30, 2022

    @tonihei
    tonihei
    on Nov 30, 2022
    Collaborator

    Sorry, but this problem can be fixed ?

    There is nothing to fix, this is working as intended. If your playback position falls behind the live window, then you play at a negative position relative to the start of the live window.

  14. tonihei
    closed this as completedon Nov 30, 2022

  15. 247az commented on Dec 7, 2022

    @247az
    247az
    on Dec 7, 2022
    Author

    Hi @tonihei
    Sorry for reopening this issue.

    But I've tested the fixing on the HLS DAI stream which encrypted by AES-128. But it doesn't seem to work.
    I tested on version 2.17.1 again, no problem. But after updating ExoPlayer to version 2.18.0 or above, then playback cannot start. And the request to the license server is also absent.

    We use requestHeaders for the request to the license server.

    httpDataSourceFactory.setDefaultRequestProperties(requestHeaders)

    Note that, there are no problems on 2.17.1 version

    On 2.17.1
    Has request to the license server: https://qaplg02east.keydelivery.japaneast.media.azure.net/?kid=d54fb5c8-513e-4340-a936-a45f818997de

    On 2.18.0 or above
    No request to the license server: https://qaplg02east.keydelivery.japaneast.media.azure.net/?kid=d54fb5c8-513e-4340-a936-a45f818997de
    --> So the video or audio fragment can not be downloaded.

    There aren't any errors thrown from the ExoPlayer side, but if you look at the event log it looks a bit strange. With a period [?].

    Event log:

    EventLogger: timeline [eventTime=156.27, mediaPos=8778.77, window=0, period=0, periodCount=1, windowCount=1, reason=SOURCE_UPDATE
EventLogger:   period [?]
EventLogger:   window [8932.92, seekable=true, dynamic=true]
EventLogger: ]

    I've checked on another HLS stream (not HLS DAI stream), it seems OK. And only happens on SSAI contents.

    Can you please check this issue on HLS DAI stream which encrypted by AES-128 ? I think this is a big problem.

    #EXTM3U
#EXT-X-VERSION:4
#EXT-X-TARGETDURATION:3
#EXT-X-MEDIA-SEQUENCE:1
#EXT-X-DISCONTINUITY-SEQUENCE:0
#EXT-X-I-FRAMES-ONLY

#EXT-X-KEY:METHOD=AES-128,URI="https://qaplg02east.keydelivery.japaneast.media.azure.net/?kid=d54fb5c8-513e-4340-a936-a45f818997de",IV=0X79D4C126D68BB73240DF2B5292ED2EC0
#EXT-X-PROGRAM-DATE-TIME:2022-12-07T05:31:07Z
#EXTINF:2.002000,no-desc
https://qartvnplg-hls02-east.akamaized.net/09bad558-a9ca-44d0-9350-f0655eedd77b/4f9e1815-629d-4797-912d-d08909eb25e6.ism/QualityLevels(200000)/KeyFrames(video=20020000,format=m3u8-aapl,encryption=cbc)
#EXTINF:2.002000,no-desc
https://qartvnplg-hls02-east.akamaized.net/09bad558-a9ca-44d0-9350-f0655eedd77b/4f9e1815-629d-4797-912d-d08909eb25e6.ism/QualityLevels(200000)/KeyFrames(video=40040000,format=m3u8-aapl,encryption=cbc)
#EXTINF:2.002000,no-desc
https://qartvnplg-hls02-east.akamaized.net/09bad558-a9ca-44d0-9350-f0655eedd77b/4f9e1815-629d-4797-912d-d08909eb25e6.ism/QualityLevels(200000)/KeyFrames(video=60060000,format=m3u8-aapl,encryption=cbc)
#EXTINF:2.002000,no-desc
https://qartvnplg-hls02-east.akamaized.net/09bad558-a9ca-44d0-9350-f0655eedd77b/4f9e1815-629d-4797-912d-d08909eb25e6.ism/QualityLevels(200000)/KeyFrames(video=80080000,format=m3u8-aapl,encryption=cbc)
#EXTINF:2.002000,no-desc
....

  16. tonihei commented on Dec 7, 2022

    @tonihei
    tonihei
    on Dec 7, 2022
    Collaborator

    This is unrelated to the previous issue. Could you open a new one for this? If you do so, please also provide more detailed information about how you set up the player.

  17. 247az commented on Dec 7, 2022

    @247az
    247az
    on Dec 7, 2022
    Author

    @tonihei
    I've confirmed this again.
    From version 2.18.0, this error will occur.
    Can you tell me from version 2.18.0, what has changed when playing HLS stream which encrypted by AES-128 ?
    Because I have checked in version 2.17.1, there is no problem. So I think this is not a data problem on our side, but something wrong with ExoPlayer.

  18. google
    locked and limited conversation to collaborators on Jan 30, 2023
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