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	<title>saitti.org &#187; CUDA</title>
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	<description>Tajunnanvirtaa Humisevan Talon uumenista.</description>
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		<title>Good news for H.264 compressionists.</title>
		<link>http://www.saitti.org/2009/06/09/614/</link>
		<comments>http://www.saitti.org/2009/06/09/614/#comments</comments>
		<pubDate>Tue, 09 Jun 2009 14:37:16 +0000</pubDate>
		<dc:creator>Petri</dc:creator>
				<category><![CDATA[Rauta]]></category>
		<category><![CDATA[Softa]]></category>
		<category><![CDATA[in english]]></category>
		<category><![CDATA[Canopus]]></category>
		<category><![CDATA[compression]]></category>
		<category><![CDATA[CUDA]]></category>
		<category><![CDATA[encoding]]></category>
		<category><![CDATA[Firecoder Blu]]></category>
		<category><![CDATA[GeForce]]></category>
		<category><![CDATA[Grass Valley]]></category>
		<category><![CDATA[H.264]]></category>
		<category><![CDATA[Leadtek]]></category>
		<category><![CDATA[MPEG-2]]></category>
		<category><![CDATA[PxVC1100]]></category>
		<category><![CDATA[SpursEngine]]></category>
		<category><![CDATA[TMPGEnc]]></category>

		<guid isPermaLink="false">http://www.saitti.org/?p=614</guid>
		<description><![CDATA[I&#8217;m building a video editing workstation and decided to upgrade my Canopus EDIUS 4 to version 5. While looking for info on the upgrade pricing, I found Grass Valley&#8217;s Firecoder Blu. It&#8217;s supposed to encode Blu-ray specced H.264 from HD source at speeds up to 2x real-time. That&#8217;s 48 frames per second which is far [...]]]></description>
			<content:encoded><![CDATA[<p>I&#8217;m building a video editing workstation and decided to upgrade my Canopus EDIUS 4 to version 5. While looking for info on the upgrade pricing, I found Grass Valley&#8217;s <a href="http://desktop.grassvalley.com/products/FIRECODERBlu/index.php">Firecoder Blu</a>. It&#8217;s supposed to encode Blu-ray specced H.264 from HD source at speeds up to 2x real-time. That&#8217;s 48 frames per second which is far better than the 12-15 frames per second I get with a brand spanking new Intel Core i7 920.<span id="more-614"></span></p>
<p>That&#8217;s certainly an improvement I&#8217;m willing to pay some good money for. While looking further into the card&#8217;s specs, I noticed something very interesting indeed. Its SpursEngine CPU is based on the Cell processor and is actually a stripped-down version of the CPU powering Sony PlayStation 3. SpursEngine incorporates Toshiba&#8217;s &#8220;Super Resolution Technology&#8221; which is supposed to work miracles with SD-to-HD upconversion.</p>
<p>There are some drawbacks, of course. Firstly, the price. Firecoder Blu has a price tag of ~550 euros (VAT incl.) here in Finland. That&#8217;s not cheap, although it&#8217;s not terribly expensive either, provided the card does what it promises to. Secondly, the card is designed to work with Canopus EDIUS NLE software and especially with its Firecoder Writer software. Judging by the release info, Firecoder Writer is very basic, with limited file format support and offers little in the area of parameter tweaking.</p>
<p>Luckily there&#8217;s another solution for the software side. Japanese Pegasys Inc. has implemented support for the SpursEngine on its famous <a href="http://tmpgenc.pegasys-inc.com/en/product/te4xp.html" target="_blank">TMPGEnc Express</a> encoding application via a <a href="http://tmpgenc.pegasys-inc.com/en/product/te4xp_spurs.html" target="_blank">SpursEngine plug-in</a>. TMPGEnc 4.0 Express and the plug-in are available on Pegasys&#8217; webstore for the bundle price of $149.90.</p>
<p>Also of interest to video encoding professionals is the NVIDIA CUDA support built-in to the TMPGEnc. In other words, plonk in a <a href="http://www.nvidia.com/object/cuda_learn_products.html" target="_blank">CUDA enabled NVIDIA GeForce graphics adapter</a> and you&#8217;ll see improvements in encoding times. Here&#8217;s some figures lifted, um, borrowed from Pegasys&#8217; website:</p>
<p><img src='http://www.saitti.org/wp-content/gallery/various/spurstest.gif' alt='SpursEngine + CUDA = massive improvement' class='ngg-singlepic ngg-none' /></p>
<p>While CUDA on its own can cut down encoding times by up to 40 percent, it&#8217;s the combination of SpursEngine and CUDA which will really hike those fps rates up. A test encode which took 46:21 minutes on a Pentium D 2.80 GHz was completed in less than 8 minutes using the same CPU accelerated by both SpursEngine and CUDA. That&#8217;s a massive improvement, no matter how you slice it.</p>
<p>Now, if 550 euros feels a bit steep, you&#8217;re in luck because there&#8217;s a cheaper alternative. Leadtek, known for various video-related components, has released a <a href="http://www.leadtek.com/eng/tv_tuner/overview.asp?lineid=6&#038;pronameid=505" target="_blank">WinFast PxVC1100 add-on card</a> which is based on the very same SpursEngine CPU as Firecoder Blu. The best bit? PxVC1100 is priced at under 220 euros and it comes with a fully functioning TMPGEnc + SpursEngine Plug-in combo. The worst bit? The product is very thin on the ground at the moment and can be difficult to find in Europe.</p>
<p>I will be receiving a Firecoder Blu later this week, followed by a PxVC1100 a few weeks later. Expect a more thorough report on both, and the TMPGEnc 4.0 Xpress, once I&#8217;ve made them jump through a few hoops.</p>
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