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cite="mid:mailman.147175.1297251985.5290.mythtv-users@mythtv.org"
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<pre wrap=""><div class="moz-txt-sig">Date: Tue, 8 Feb 2011 22:19:26 -0600
From: Marc Randolph <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:mrand@pobox.com"><mrand@pobox.com></a>
Subject: Re: [mythtv-users] Adventures in Wireless HD
On Tue, Feb 8, 2011 at 4:41 PM, Phil Linttell <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:phil.linttell@rogers.com"><phil.linttell@rogers.com></a> wrote:
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<pre wrap=""><span class="moz-txt-citetags">> </span>[...]
<span class="moz-txt-citetags">> </span>Then a couple of days ago, the WNDR3700 received a firmware update
<span class="moz-txt-citetags">> </span>(V1.0.7.98NA) and all-of-a-sudden I could play very steady HD video on
<span class="moz-txt-citetags">> </span>her machine with no other changes (not perfect, but watchable.) Even
<span class="moz-txt-citetags">> </span>1080i 5.1 HD-PVR recordings, recorded with maximum quality settings (a
<span class="moz-txt-citetags">> </span>file over 5GB for a 1-hour recording.) I had thought I'd only achieve
<span class="moz-txt-citetags">> </span>that result over wireless, if at all, with 5GHz streaming.
<span class="moz-txt-citetags">></span>
<span class="moz-txt-citetags">> </span>This got me thinking... maybe I could get the Windows mythfrontend to
<span class="moz-txt-citetags">> </span>work on my sons' new Acer Aspire V5252 Windows 7 64-bit laptops (15.4",
<span class="moz-txt-citetags">> </span>AMD 2.3GHz V140, ATI HD 4250, 3GB RAM, integrated single-band 802.11n).
<span class="moz-txt-citetags">> </span>These machines were about $350 and have HDMI out. (My sons each have
<span class="moz-txt-citetags">> </span>external 24" 1080p HDMI monitors.) Unfortunately, playback was very
<span class="moz-txt-citetags">> </span>stuttery/unwatchable - even sitting in the same room as the router.<span class="moz-txt-citetags"></span></pre>
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<pre wrap="">Did you try playing back a stream that was encoded with a different
codec (maybe with both high def and std def) to see if it was a
decoder related issue?
Not that it would cause the stuttery problems, but was the time
synchronized on the PC?
Regardless, neat info! I just bought a wireless-N router myself as
part of my upgrade to HD, but haven't streamed anything over it yet.
In fact, I don't yet have anything else with -N.
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All of my MythTV recordings are from an HD-PVR, recorded in either
480p, 720p or 1080i. I'm testing with 1080i content mainly, since
that's the highest bit-rate content I have (ranging typically
between 8 and 12Mbps, but can burst higher.) I have content in
MythVideo in other formats. Much of this seems to play fine as
it's in much lower bit rates (for example, I can play a 1280x544
H.264 DVD RIP with 1850 kbps constant bit-rate over wireless-G
<style type="text/css">p, li { white-space: pre-wrap; }</style>
<style type="text/css">p, li { white-space: pre-wrap; }</style>to an
Acer Aspire One netbook running ubuntu/mythfrontend just fine
without any hardware decoding. That netbook won't come anywhere
close to playing the 1080i content.)<br>
<br>
I did try streaming 1080i recordings to a PS3 located two floors
above the router (PS3 is still reporting 100% signal strength). I
used to have problems streaming content to the PS3 that was over 4-5
Mbps. Now the 1080i video is rock solid at over twice that bit rate
(and the PS3 is 802.11G, no even N) and looks gorgeous. I wonder if
a firmware upgrade sometime in the last year improved the PS3's
ability to handle wireless video... or whether it's all down to the
new router?<br>
<br>
I tried copying a 5GB video file to some router attached USB
storage, to test the UPnP server.... but my memory stick was
formatted FAT32, so the copy failed after 4GB (and took over 15
minutes, vs. 6 minutes to downloads the whole file wirelessly.)
Apparently it router will support EXT3, or NTFS so I'll need to
re-format and try again. NTFS seems a better bet if you're moving
storage devices between Windows/Linux and media servers.<br>
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