MediaPortal Audio renderer - better video playback quality | Page 18

Discussion in 'General Development (no feature request here!)' started by tourettes, July 12, 2010.

  1. Seeco

    Seeco Portal Pro

    Joined:
    October 15, 2007
    Messages:
    241
    Likes Received:
    7
    Location:
    Linköping
    Ratings:
    +7 / 0
    Home Country:
    Sweden Sweden
    OK, thanks for that.

    I have now tried a whole bunch of different videos, blu-ray rip .mkv's, tv-show HD .mkv's, PAL DVD .ISO's, regular PAL .avi's. Before I've had different amounts of stutter problems with all of them. Now though, I'm seeing the smoothest playback ever! The Shift + 1 OSD shows almost completely flat lines, where it used to look like the Rockies :)

    BTW, I'm using the MP refresh rate changer, matching all material FPS to RR.



    Thank you!

    The only little flaw I can see is the thing with the defunct volume changing.
     
  2. Google AdSense Guest Advertisement



    to hide all adverts.
  3. tourettes
    • Premium Supporter

    tourettes Retired Team Member

    Joined:
    January 7, 2005
    Messages:
    17,301
    Likes Received:
    4,595
    Ratings:
    +4,810 / 3
    Nice to hear. Could you post a bit more details on the audio HW? Just to gather some data.

    WASAPI exclusive mode wont allow volume to be changed (unless the audio renderer would implement that kind of stream resampling itself). Volume control should be avaible in non-exclusive mode.
     
  4. tourettes
    • Premium Supporter

    tourettes Retired Team Member

    Joined:
    January 7, 2005
    Messages:
    17,301
    Likes Received:
    4,595
    Ratings:
    +4,810 / 3
    Re: AW: MediaPortal Audio renderer - better video playback quality

    It would be impossible to read that kind of statistics. For example every single frame would contain a different 1 to 4 number value how early the audio sample was received (actually the value would change even multiple times during a presentation time of one frame). Thats why it is only logged.
     
  5. Seeco

    Seeco Portal Pro

    Joined:
    October 15, 2007
    Messages:
    241
    Likes Received:
    7
    Location:
    Linköping
    Ratings:
    +7 / 0
    Home Country:
    Sweden Sweden
    Tourettes: I see, so there aren't any drawbacks to using this WASAPI in non-exclusive mode?

    My motherboard is an Asrock 4core 1333-FullHD. It's this one:

    ASRock > Products > 4Core1333-FullHD

    It only says

    - 7.1 CH Windows® Vista™ Premium Level HD Audio (ALC888 Audio Codec)
    - Chipset embedded HDMI Audio

    I'm not sure of what to make of that. The Win 7 system info isn't very revealing either.
     
  6. tourettes
    • Premium Supporter

    tourettes Retired Team Member

    Joined:
    January 7, 2005
    Messages:
    17,301
    Likes Received:
    4,595
    Ratings:
    +4,810 / 3
    Currently it is less compatible than the exclusive mode since if audio hardware is using some specific mixing format then the renderer cannot render. This can be checked only with testing. At later state the renderer will be able to overcome such limitation by internal resampling.
     
  7. mironicus

    mironicus Portal Pro

    Joined:
    March 9, 2008
    Messages:
    687
    Likes Received:
    43
    Ratings:
    +46 / 1
    AW: MediaPortal Audio renderer - better video playback quality

    I am testing the Audio renderer the whole time now. I found another problem files - the audio begins to stutter (after 40 seconds playtime) and the log shows massive "Buffer underruns". Log and picture attached. The behaviour is reproducable on both of my systems.

    EDIT: In the Haali Media Splitter there is a setting for "Input buffer size". The default value is 8192. If I increase the value to 16384 the stutter is shifted so the audio stutter begins at 1:20 minutes of the video (with buffer 8192 the stutter begins at 00:40). With the default Directsound Audiorenderer it works fine.

    Very fishy.
     

    Attached Files:

  8. tourettes
    • Premium Supporter

    tourettes Retired Team Member

    Joined:
    January 7, 2005
    Messages:
    17,301
    Likes Received:
    4,595
    Ratings:
    +4,810 / 3
    Re: AW: MediaPortal Audio renderer - better video playback quality

    Could you upload again one of those files? Sounds like something fishy indeed (probably with the file itself in combination of the audio renderer).
     
  9. mironicus

    mironicus Portal Pro

    Joined:
    March 9, 2008
    Messages:
    687
    Likes Received:
    43
    Ratings:
    +46 / 1
    AW: MediaPortal Audio renderer - better video playback quality

    tourettes

    You have mail.
     
  10. sjeffrey

    sjeffrey Portal Pro

    Joined:
    August 22, 2008
    Messages:
    232
    Likes Received:
    7
    Location:
    Canada
    Ratings:
    +7 / 0
    Home Country:
    Canada Canada
    I couldn't find anything in this thread about 64 bit.
    I'm on Windows 7 64 bit and can't register mpaudiorenderer.ax. I tried in different folders and using regsvr32 from system32 or syswow64.
    No luck. Has any tried on 64 bit?
     
  11. vuego
    • Team MediaPortal

    vuego Documentation Group

    Joined:
    August 5, 2006
    Messages:
    1,572
    Likes Received:
    662
    Occupation:
    Alchemist, Astrobiologist, Exotic dancer
    Location:
    Göteborg
    Ratings:
    +870 / 0
    Home Country:
    Sweden Sweden
    Show System Specs
    Yes, I tried it on Windows 7 64 bit. You can put it where ever you like but you need to start cmd as administrator (open start menu, type cmd and press Ctrl+Shift+Enter).
     
Loading...

Users Viewing Thread (Users: 0, Guests: 0)

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice
  • About The Project

    The vision of the MediaPortal project is to create a free open source media centre application, which supports all advanced media centre functions, and is accessible to all Windows users.

    In reaching this goal we are working every day to make sure our software is one of the best.

             

  • Support MediaPortal!

    The team works very hard to make sure the community is running the best HTPC-software. We give away MediaPortal for free but hosting and software is not for us.

    Care to support our work with a few bucks? We'd really appreciate it!