<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On 24/08/2008, at 5:10 PM, Steven Ellis wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On 24/08/2008, at 2:57 PM, Steven Ellis wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On 24/08/2008, at 2:18 PM, Graeme Woollett wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Sorry if I've missed the obvious places for the instructions. I can <br>only find references to the tar ball...<br><br>This is the deb for the binary<br><br>deb <a href="http://ppa.launchpad.net/paul-kcbbs/ubuntu">http://ppa.launchpad.net/paul-kcbbs/ubuntu</a> hardy main<br><br></div></blockquote><div><br></div><div>Add the following for getting the source as well</div><div><br></div><div>deb-src <a href="http://ppa.launchpad.net/paul-kcbbs/ubuntu">http://ppa.launchpad.net/paul-kcbbs/ubuntu</a> hardy main</div><div><br></div><br><blockquote type="cite"><div><br>Are there deb-source packages available that can be modified and built <br>into debs the "debian way " rather then the tar ball approach.<br><br>This way all the development file dependencies are taken care of making <br>the source much easier to build<br><br>If so what is the deb-src line I need to use, what does the apt-get line <br>look like?<br><br>My CPU isn't quite fast enough for TV3 so I need to make binaries that <br>have it enabled.</div></blockquote><div><br></div><div>Thinking the same myself</div><br><blockquote type="cite"><div><br>Thats unless somebody else has made some custom debs with it enabled?<br><br>I'm quite happy changing files but don't have the time to manually <br>satisfy all the dev dependencies.<br></div></blockquote></div><div><br></div><div>mkdir src</div><div>cd src</div><div>sudo apt-get source mythtv</div><div>sudo apt-get build-dep mythtv</div><div><br></div><div>You should then have an Ubuntu/Debian friendly build tree to play with.</div><div><br></div></div></blockquote><br></div><div>Well I just had a try with the skip loop filter patch which helped a little bit.</div><div><br></div><div>Also tried running the system with a CPU disabled to see how it would affect performance and it made the HD channels unusable on an AMD 3600 X2.</div><div><br></div><div>Going to try a rebuild with CODEC_FLAG2_FAST enabled in addition to the skiploopfilter.</div><div><br></div><div><br></div></div></blockquote><br></div><div>My current patch to <span class="Apple-style-span" style="font-family: Verdana; font-size: 13px; ">libs/libmythtv/avformatdecoder.cpp around line 1588 is as follows</span></div><div><div><br></div><div> if (CODEC_ID_H264 == enc->codec_id)</div><div> {</div><div> VERBOSE(VB_PLAYBACK, LOC + "Turning off loop filter");</div><div> enc->skip_loop_filter = AVDISCARD_ALL;</div><div> VERBOSE(VB_PLAYBACK, LOC + "Enabling Fast decode mode");</div><div> enc->flags |= CODEC_FLAG2_FAST;</div><div> }</div><div><br></div></div><div>This appears to give me a 4-5 % boost on the SD channels, and possibly 15-30% on the HD channels. It is hard to tell on TV One HD at the moment as the bitrate for the sports is all over the place. TV3 is almost watch-able on my CPU so hopefully Graeme will get full support on his 5600 X2. Watching TV2 now sits at an average of 70-80% rather than close to 100%.</div><div><br></div><div>Paul - I'd love to get any additional patches you have to stabilise the audio. I haven't had time to play with debug builds to trace the audio segfaults yet.</div><div><br></div><div>Steve</div><div><br></div><div><br></div><div><br></div><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Steven Ellis - Technical Director<br>OpenMedia Limited<br>email - <a href="mailto:steven@openmedia.co.nz">steven@openmedia.co.nz</a><br>website - <a href="http://www.openmedia.co.nz/">http://www.openmedia.co.nz</a><br></div></div></span> </div><br></body></html>