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Down-Sample HD? Possible?
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<blockquote data-quote="apoptygma" data-source="post: 331369" data-attributes="member: 84532"><p>Yea I'm 99% sure this card has no Hardware acceleration inbuilt hence why my original comment was to see if it would be possible to decode a lower-bitrate version of the HD signal and take some load off the card. Although having said that it's highly likely that the actual down-sampling if at all possible would just add overhead anyway.</p><p></p><p>I'll have a go with some other codecs, but is there anyway to actually configure the individual codecs to modify output? I wasn't able to find any kind of control panel/settings for the nvidia decoder where I could "turn down" any post-processing and sacrifice some picture quality for framerate which is what I'm after.</p><p></p><p>I might run some diagnostics and see what the CPU usage is during HD playback, Anyone know of a tool that will monitor GPU usage? It would be good to figure out where the bottleneck is and how cheeply I can get the needed increase in performance as Hardware-accelerated TV-Tuners are very expensive, If a faster Graphics card or CPU will help It would save a lot of money for me.</p><p></p><p>Here's a Link to the tuner <a href="http://www.fusionhdtv.co.kr/eng/products/dvbtlite.aspx" target="_blank">DViCO FusionHDTV Tuner PCI, USB: Home > Products > DVB-T Lite</a></p><p></p><p>It states : </p><p></p><p>Dvico's proprietary HDTV SW decoder</p><p>Dvico's own dual HDTV software decoders for both non-DxVA</p><p>and DxVA VGAs Provides the best VGA compatibility with non</p><p>DxVA full software decoder</p><p>Provides low CPU consumption with DxVA SW decoder</p><p>Dvico's own AC3, AAC Audio decoder</p><p></p><p>Which I'm reading as "there's nothing on this card that will make your TV run nicer, It's all SW rendering" ya?</p><p></p><p>Third post in a row here and I'm starting to get the vibe that "hardware acceleration" means something other than what I initially suspected, I thought it mean the card has some ability to do processing tasks but from the descriptions it seems like it's more a case of it offloading CPU rendering to the GPU?</p><p></p><p>Ok here's another option - what's the codec for sound that's going to have the least overhead? I'm currently only running a 2-speaker setup so It doesn't matter if the sound is god-aweful or fantastically rendered - It's going to sound the same. I think I've left this as the default sound codec as well, maybe I could get a few extra frames per second changing to something more sensible</p></blockquote><p></p>
[QUOTE="apoptygma, post: 331369, member: 84532"] Yea I'm 99% sure this card has no Hardware acceleration inbuilt hence why my original comment was to see if it would be possible to decode a lower-bitrate version of the HD signal and take some load off the card. Although having said that it's highly likely that the actual down-sampling if at all possible would just add overhead anyway. I'll have a go with some other codecs, but is there anyway to actually configure the individual codecs to modify output? I wasn't able to find any kind of control panel/settings for the nvidia decoder where I could "turn down" any post-processing and sacrifice some picture quality for framerate which is what I'm after. I might run some diagnostics and see what the CPU usage is during HD playback, Anyone know of a tool that will monitor GPU usage? It would be good to figure out where the bottleneck is and how cheeply I can get the needed increase in performance as Hardware-accelerated TV-Tuners are very expensive, If a faster Graphics card or CPU will help It would save a lot of money for me. Here's a Link to the tuner [url=http://www.fusionhdtv.co.kr/eng/products/dvbtlite.aspx]DViCO FusionHDTV Tuner PCI, USB: Home > Products > DVB-T Lite[/url] It states : Dvico's proprietary HDTV SW decoder Dvico's own dual HDTV software decoders for both non-DxVA and DxVA VGAs Provides the best VGA compatibility with non DxVA full software decoder Provides low CPU consumption with DxVA SW decoder Dvico's own AC3, AAC Audio decoder Which I'm reading as "there's nothing on this card that will make your TV run nicer, It's all SW rendering" ya? Third post in a row here and I'm starting to get the vibe that "hardware acceleration" means something other than what I initially suspected, I thought it mean the card has some ability to do processing tasks but from the descriptions it seems like it's more a case of it offloading CPU rendering to the GPU? Ok here's another option - what's the codec for sound that's going to have the least overhead? I'm currently only running a 2-speaker setup so It doesn't matter if the sound is god-aweful or fantastically rendered - It's going to sound the same. I think I've left this as the default sound codec as well, maybe I could get a few extra frames per second changing to something more sensible [/QUOTE]
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