No passtrough when sync playback to display.

1st Official Post

    Hi,

    I'm using the newsest build v7.90.009 alpha on my odroid C2 and when i select sync playback to display videoplayer use not passtrough but i only get multichannel.
    When playin a movie with DTS HD MA i get multichannel.
    What are the right settings to get passthrough with sync playback to display on?
    If i not select sync playback to display i videoplayback is stuttering..And with Live TV i only get multichannel even when sync playback to display is off
    Is ac3 5.1 with Live TV still WIP?

    Thanks guys!

    Edited once, last by Marciano (December 6, 2016 at 8:15 PM).

    • Official Post
    Quote from Marciano


    How about 23.976 smooth play back when sync playback to display disabled?

    Wrong.

    That has nothing to do with 24p playback. Therefore you should enable the "change refreshrate to match video" setting. "Sync Playback to display" is needed if the audio is not in sync with the video. So those settings aren't related to each other.
    [hr]

    Quote from Marciano


    Is ac3 5.1 with Live TV still WIP?

    Yes. And I guess there will never be. Because the audio has to be synced to the video as well. That's kind of a default setting. So there's no ac3 for Live-TV.

    There was a forum thread at forum.kodi.tv where fernetmenta mentioned this. But I can't find it at the moment.

    Quote from DaVu

    Wrong.

    That has nothing to do with 24p playback. Therefore you should enable the "change refreshrate to match video" setting. "Sync Playback to display" is needed if the audio is not in sync with the video. So those settings aren't related to each other.
    [hr]

    Yes. And I guess there will never be. Because the audio has to be synced to the video as well. That's kind of a default setting. So there's no ac3 for Live-TV.

    There was a forum thread at forum.kodi.tv where fernetmenta mentioned this. But I can't find it at the moment.

    Thanks for the info.

    But i have "change refreshrate to match video" enabled and i have a stuttering playing 24p videos.

    Is this still a WIP?

    Thanks!

    • Official Post
    Quote from Marciano


    Is this still a WIP?

    No.

    Get us a full debug log.

    Be sure, that your TV switches to 24p as well. If the TV isn't 24p capable then there won't be no switch and you will get stuttering playback.

    Also get us some screenshots from your video settings and from the video settings the OSD provides.

    To what setting is your deinterlace option set? Make sure it's set to "auto" if you play locally stored movie files. deinterlace should only be used for Live-TV.

    Quote from DaVu

    No.

    Get us a full debug log.

    Be sure, that your TV switches to 24p as well. If the TV isn't 24p capable then there won't be no switch and you will get stuttering playback.

    Also get us some screenshots from your video settings and from the video settings the OSD provides.

    To what setting is your deinterlace option set? Make sure it's set to "auto" if you play locally stored movie files. deinterlace should only be used for Live-TV.

    I will get you a full debug log and screenshots from my video settings tomorrow i just at home from work.

    My TV is capable of switching to 24p and my deinterlace option is off and greyed in videos settings while playing video i just can't select to "auto".

    In videoplayer accelaration settings i've set

    mpeg2 --> always
    mp4 --> always
    h264 --always

    Thanks

    Quote from DaVu

    No.

    Actually the answer should be YES, smooth 23.976fps video playback is still a WIP for all AML LE Kodi Krypton platforms.
    You still get the ~41 second video frame upset playing 23.976fps video at a refresh rate of 24Hz. (No Sync playback to display)

    Best bet is to turn off Kodi dynamic Refresh switching all together for the time being and use a Kodi GUI of 1080p60Hz if this glitch upsets you.

    Sync Playback to display has to disable Passthrough Audio because Audio has to be converted to PCM and then sped up or slowed down to match the fps of the source video content. You will notice this at the start of video playback sometimes when the Pitch of the Audio changes up/down as A/V Sync does its thing.

    Edited once, last by wrxtasy (December 8, 2016 at 6:39 AM).

    • Official Post
    Quote from wrxtasy


    Actually the answer should be YES, smooth 23.976fps video playback is still a WIP for all AML LE Kodi Krypton platforms.

    oops. thanks for correcting me ;)

    but..

    Quote from wrxtasy


    You still get the ~41 second video frame upset playing 23.976fps video at a refresh rate of 24Hz. (No Sync playback to display)

    Did you mean "Change refreshrate to match video". As sync playback to display shouldn't be related to 24Hz playback. Or am I wrong on this as well? ;)

    Quote from wrxtasy

    Actually the answer should be YES, smooth 23.976fps video playback is still a WIP for all AML LE Kodi Krypton platforms.
    You still get the ~41 second video frame upset playing 23.976fps video at a refresh rate of 24Hz. (No Sync playback to display)

    Best bet is to turn off Kodi dynamic Refresh switching all together for the time being and use a Kodi GUI of 1080p60Hz if this glitch upsets you.

    Sync Playback to display has to disable Passthrough Audio because Audio has to be converted to PCM and then sped up or slowed down to match the fps of the source video content. You will notice this at the start of video playback sometimes when the Pitch of the Audio changes up/down as A/V Sync does its thing.

    Thanks for clarify wrxtasy!

    I hope i the next alpha build this bug will be fixed.

    Do maybe now progress is of this bug?

    Edited once, last by Marciano (December 8, 2016 at 7:06 PM).