MRV Quality

Discussion in 'DIRECTV - Coax Networking (private)' started by dave29, Jun 22, 2009.

  1. Jun 22, 2009 #21 of 104
    Zepes

    Zepes Godfather

    475
    0
    Dec 27, 2007
    MRV is the same. trickplay as described and seemingly random pixilization.

    I was running wired. I'm currently running DECA network only with no internet connection.

    All Directv MRV network.. woohoo
     
  2. Jun 22, 2009 #22 of 104
    dettxw

    dettxw MRVing

    4,117
    21
    Nov 21, 2007
    Choctaw, OK
    Exactly.
    The glitches are there using either DIRECTV2PC or MRV. If anyone can't see them then they need better glasses.
    And as I also keep saying, these glitches didn't used to be there in the early days of DIRECTV2PC. They came later.
    I'd bet good money that it is a server software issue.
    I believe that can fix the glitches if they want to. Unless that is, the glitches are caused by the sacred cow of implementing DRM. Then it might be harder.

    The glitches problem reminds me a lot of the OTA playback issues with some channels. At first all worked as they should in DIRECTV2PC (and later with MRV). Then they broke some of them (in my case a 720p channel and a 1080i channel). Eventually they fixed the problem but it took a long long time. Then they soon broke them again. Now all is good but not a quick implementation of a fix. I'd also bet good money that fixing this problem was simply not a priority.

    I guess my point is that the glitches will get fixed sometime before a NR but not necessarily on our schedule.
     
  3. Jun 22, 2009 #23 of 104
    Davenlr

    Davenlr Geek til I die

    9,155
    35
    Sep 16, 2006
    HR22-100 playing MRV from HR20-700. Using wired through 1gig switch, I never had any break ups that I noticed. Now with Deca, I am experiencing quite a few breakups, but they seem to come all together, at intervals...IE, its not constant, just when one happens, several happen, then it seems to regroup and continue on fine for a while.
     
  4. Jun 22, 2009 #24 of 104
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,752
    376
    Dec 9, 2006
    I think you were just "lucky".
     
  5. Jun 22, 2009 #25 of 104
    hdtvfan0001

    hdtvfan0001 Well-Known Member

    32,456
    258
    Jul 28, 2004
    True....but there should be some noticable difference between sending video streams over a 54Mbps wireless connection and a direct coax connection in the DECA setup....sheer bandwidth capacity alone should account for that much, not to mention a "cleaner" path for the stream content.

    Hopefully, I'll get to connect my (currently wireless network) setup in the next few days (alot of work-related time preventing that right now). That will show me a good example of any improvement if there will be some.

    For those who were originally running direct network connections (Cat 5 or 6) to their various HD boxes, the difference should be nominal in comparison.
     
  6. Jun 22, 2009 #26 of 104
    RAD

    RAD Well-Known Member

    16,635
    188
    Aug 5, 2002
    Dripping...
    But you're assuming that the problems that people have noted are due to network/bandwidth issues which I feel is not the case. I've directly connected two boxes, basically eliminating any network issues from the equation and it didn't make any difference in the operation/issues of MRV that I see.
     
  7. Jun 22, 2009 #27 of 104
    hdtvfan0001

    hdtvfan0001 Well-Known Member

    32,456
    258
    Jul 28, 2004
    Not exactly.

    I'm assuming some of the problems of pixellation and breakup may be due to the network consistency and bandwidth. For that reason, I'm assuming wireless network migrations to DECA (such as my setup here) would see more of an improvement than previous direct network users.

    I also suspect (like VOS) that some is due to the MRV firmware code not being quite "up to snuff".
     
  8. Jun 22, 2009 #28 of 104
    DJPellegrino

    DJPellegrino Godfather

    468
    0
    Nov 17, 2005
    At this point I am seeing no difference between using my wireless setup or the DECA setup in terms of quality issues. In my wireless, I rarely saw any glitches or pixelation. In the DECA setup, I am not seeing any glitches or pixelation yet. I really don't expect to. My next test is going to be to get a stream running to the H23 and at the same time get a stream running to one of the other boxes. If I can I'll try and get a DirecTV2PC stream running as well. I know for sure I can't do all of this with wireless without getting pauses or freezes. The bandwidth over the coax should be able to support it. My only concern at this point is all network traffic has to go thru my wireless which has the HR21 as its access point to the DECA network. Potential for a bottleneck.

    I do plan on trying somehow to get my network off wireless without running ethernet.
     
  9. Jun 22, 2009 #29 of 104
    hdtvfan0001

    hdtvfan0001 Well-Known Member

    32,456
    258
    Jul 28, 2004
    Let me know when you figure that one out....:D
     
  10. Jun 22, 2009 #30 of 104
    RAD

    RAD Well-Known Member

    16,635
    188
    Aug 5, 2002
    Dripping...
    Just to make sure about the discussion.

    RunnerFL says he didn't see any improvement with MRV issues going to the DECA adapters, his setup says he's running a totally hardwired network. You respond to his post saying you expected to see an improvement.

    If people are running a wired 100Mbps network using switches why do you believe that going to DECA/MoCA would provide an improvement? Yes it would be an improvement over wireless and powerline adapters but I don't see how going to a MoCA would be an improvement over 100Mbps wired networks.

    Just trying to understand your logic on this. Thanks
     
  11. Jun 22, 2009 #31 of 104
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,752
    376
    Dec 9, 2006
    "Improvement" will only come if the previous network was the cause [wasn't cutting it].

    Bit Streams are under 30 Mb/s for the most part and closer to 12 Mb/s [and less].
     
  12. Jun 22, 2009 #32 of 104
    hdtvfan0001

    hdtvfan0001 Well-Known Member

    32,456
    258
    Jul 28, 2004
    The way he described it at first...thought he was partially wired and partially wireless.

    I also asked Litzdog to post his results here....as he stated in he saw a noticable difference in MRV performance in his setup with powerline in combination.

    If you have a fully wired 100Mbps setup before, then I would not expect to see any noticable change...only wireless or a combo of wireless, powerline, or other.
     
  13. Jun 22, 2009 #33 of 104
    Spanky_Partain

    Spanky_Partain Active Member

    5,500
    0
    Dec 7, 2006
    Mine was all hardwired and MRV seemed to be the same over the DECA connection.
     
  14. Jun 22, 2009 #34 of 104
    Tom Robertson

    Tom Robertson Lifetime Achiever DBSTalk Club

    21,331
    248
    Nov 15, 2005
    But... packet storms can cause packet delays (or worse yet, packet loss) for time critical HD data streams.

    Cheers,
    Tom
     
  15. Jun 22, 2009 #35 of 104
    Davenlr

    Davenlr Geek til I die

    9,155
    35
    Sep 16, 2006
    Watching College World series game which is recording on HR20. Watching it delayed about 30 min via MRV on Hr22.

    When it hit 4 hrs and 10 mins (10 mins after the scheduled end of program but in the 1.5 hr expanded buffer)...hitting 30 skip caused game to jump backwards to the 2:59:30 mark, and would not allow 30skip or Ff to work at all. Having to watch inning over again.

    MRV still glitching a LOT.
     
  16. Jun 22, 2009 #36 of 104
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,752
    376
    Dec 9, 2006
    This would only be a problem on a network much more complex than what I have here. Mine is just like me: ZZZZZZZ most of the time. :lol:
     
  17. Jun 22, 2009 #37 of 104
    RunnerFL

    RunnerFL Well-Known Member

    17,050
    312
    Jan 4, 2006
    Correct, I'm totally hardwired. I've seen no difference at all today.
     
  18. Jun 22, 2009 #38 of 104
    RunnerFL

    RunnerFL Well-Known Member

    17,050
    312
    Jan 4, 2006
    Nope, not at all.
     
  19. Jun 23, 2009 #39 of 104
    webby_s

    webby_s Hall Of Fame

    1,299
    0
    Jan 11, 2008
    So my $0.02 regarding MRV quality:

    I hooked everything up just about a half hour ago, and things 'booted' up just fine. I did reset my H21 just because I wasn't having a great time with connecting all the connections.

    So after I had everything up and running I watched an mpeg4 OTA recording of the local news via MRV (from HR to HR). Things seemed GREAT for me, FF and 30sec Slip where MUCH more responsive. Meaning it didn't have as many hiccups during the fast/lots of info going through the stream. I was VERY pleased with that as my Wife will more then often use FF (rather then 30sec slip) and will go past the commercial break. So I think things have definitely improved from my 10/100 ZoNet switch.

    The last couple of CE's I have had drastically less and less pixilation and blocking so I can't say that that has 'improved' as I have been very pleased lately.

    I will be moving my H21 to get some 'real word' experience with that set up... I think instead of moving the IRD to the basement as stated before I will move it to the garage with the great weather we have been having, because I am out there more often.

    So in conclusion. I love the set-up. Very easy (but could be easier with different SWM PI's, someday) and straightforward. MRV is 'snappier' but have much more to test (D* Cinema/DoD) and real world 'Wife' testing :)
     
  20. Jun 23, 2009 #40 of 104
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,752
    376
    Dec 9, 2006
    OTA is MPEG-2 [not MPEG-4]. Only the SAT feeds are MPEG-4.
    FWIW: MPEG-2 HD has been flawless for me for some time. It's the MPEG-4 that continues to have random glitches [watched a few MRV MPEG-4 tonight and it still hasn't improved].
     

Share This Page

spam firewall