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MediaPortal 1
MediaPortal 1 Talk
Picture quality from HTPCs in general
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<blockquote data-quote="bolders" data-source="post: 281107" data-attributes="member: 42721"><p>Hi</p><p></p><p>Ive suffered from stuttering playback with my HTPCs for years and have considered on many occasions giving up on using a HTPC for video playback however in the last month or 2 I seem to have managed to get my TV playback running perfectly.</p><p></p><p>I am also using the gigabyte 780g MB but I have a 4450 chip (2.3GHz) its using the F3 bios which is what it came with and I have catalyst 8.5 drivers installed. I use the Nvidia pure video decoder with the MPA audio decoder, hardware acceleration is on and the system is totaly stable (TV runs quite happily through the night and on into the nest day).</p><p></p><p>Im running XP SP2 and use a Nova T 500 and PVR150. The picture quality from my Nova T is excellent (especially BBC channels which seem to provide a very good quality transmission) and its easily as good, if not better than, my NTL box connected directly to my TV - I really cant tell the difference anymore. If im watching channels from my NTL box passed through my PVR 150 then picture quality is not quite as good and it never will be as there is another stage of conversion going on. Having to use composite instead of RGB (scart) doesnt help either but playback is still smooth. When i bring up FPS i get 25FPS constantly (although sometimes it reads 50FPS - havent figured out why tho).</p><p></p><p>I also use 1280x720 @50Hz and have vsync set to always on. I know this info doesnt really help much :sorry: but i just wanted to make you aware that smooth playback is definately possible although im quite happy to go through all my settings with you to see if there are any differences between our system configs. Before I got the TV running smooth I always questioned if it was possible with a PC (especially after reading the text file supplied with reclock - has some very good info). I always wondered if people who said there playback was smooth were just not critical enough, however I am now satisfied that it really is possible.</p><p></p><p>Again im sorry I cant provide any real help but i will add that im sure all my problems were to do with syncing issues between video frame rate and tv refresh rate. I think any modern PC has more than enough power to decode an mpeg 2 stream. Especially considering my rig plays back a 720p rip of starwars (which has a frame rate of 25FPS) perfectly using coreAVC which uses software acceleration.</p><p></p><p>bolders</p></blockquote><p></p>
[QUOTE="bolders, post: 281107, member: 42721"] Hi Ive suffered from stuttering playback with my HTPCs for years and have considered on many occasions giving up on using a HTPC for video playback however in the last month or 2 I seem to have managed to get my TV playback running perfectly. I am also using the gigabyte 780g MB but I have a 4450 chip (2.3GHz) its using the F3 bios which is what it came with and I have catalyst 8.5 drivers installed. I use the Nvidia pure video decoder with the MPA audio decoder, hardware acceleration is on and the system is totaly stable (TV runs quite happily through the night and on into the nest day). Im running XP SP2 and use a Nova T 500 and PVR150. The picture quality from my Nova T is excellent (especially BBC channels which seem to provide a very good quality transmission) and its easily as good, if not better than, my NTL box connected directly to my TV - I really cant tell the difference anymore. If im watching channels from my NTL box passed through my PVR 150 then picture quality is not quite as good and it never will be as there is another stage of conversion going on. Having to use composite instead of RGB (scart) doesnt help either but playback is still smooth. When i bring up FPS i get 25FPS constantly (although sometimes it reads 50FPS - havent figured out why tho). I also use 1280x720 @50Hz and have vsync set to always on. I know this info doesnt really help much :sorry: but i just wanted to make you aware that smooth playback is definately possible although im quite happy to go through all my settings with you to see if there are any differences between our system configs. Before I got the TV running smooth I always questioned if it was possible with a PC (especially after reading the text file supplied with reclock - has some very good info). I always wondered if people who said there playback was smooth were just not critical enough, however I am now satisfied that it really is possible. Again im sorry I cant provide any real help but i will add that im sure all my problems were to do with syncing issues between video frame rate and tv refresh rate. I think any modern PC has more than enough power to decode an mpeg 2 stream. Especially considering my rig plays back a 720p rip of starwars (which has a frame rate of 25FPS) perfectly using coreAVC which uses software acceleration. bolders [/QUOTE]
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