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MediaPortal 1
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Playback freezing after a while (VMR9helper playing=>repaint)
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<blockquote data-quote="jcee" data-source="post: 149740" data-attributes="member: 10506"><p>I have tried 0.2.2.0 + several SVNS, different gfx drivers, updates motherboard and chipset drivers etc.. and codecs.</p><p></p><p>I use the Nvidia pure video codec as it offers superior image quality. </p><p></p><p>Basically the recorded streams freeze after a while when wacthing them. The workaround is skipping some minutes into future/past (which helps sometimes) to get in going again, or stop and restart.</p><p></p><p>The problem exists also without MP, just using WMP.</p><p></p><p>What I found out so far:</p><p></p><p>1. Any time the video freezes I get an "VMR9helper: playing => repaint x" entry in the logfile, where x is a number. </p><p></p><p>2. Some people pointed out that it might be caused by bad signal quality and errors in the stream. I checked with PVAstrumento and it reported lots of errors. </p><p>I see that this could be a problem, but nervertheless the playing mechanism must be that tolerant to just continue playing. One would expect errors in a cable TV DVB stream... !</p><p></p><p>3. To improve antenna signal I exchanged all my wiring, took away all splitters and things of that kind, replaced the antenna socket in the wall. With little success. </p><p>I have to mention that my old DVB-reciever had no problems at all, even with the old cables. </p><p>Maybe its reciever is of much better quality or it has some kind of error correction build in.. !</p><p>(I use a FloppyDTV (DVB-C))</p><p></p><p>4. When I playback the files with Nero, they play fine. Maybe Nero ist using another technique or codec. </p><p>I do not know whether a different codec or a different demuxer or a different render is the cure for the problem... !</p><p>(Or if Nero does so preprocessing of the stream, before or after demuxing it)</p><p></p><p>Conclusion: </p><p></p><p>MP relies on the external mechanisms of Windows: E.g. codecs, demultiplexers, renderers. These "chain" seems not that reliable to deal with DVB-streams like other system are. </p><p></p><p>What can be done here to solve the problem?</p><p></p><p>I heard lots of people complaining about these kind of problems, at some place it causes freezes, some other experience stuttering. </p><p></p><p>I guess it is always good to improve cabeling and signal strength, but it looks like beeing just a workaround. I would not expect an DVB-C stream to be 100% free of errors. </p><p></p><p>This problem is driving me nuts. Can please someone help?!</p><p></p><p></p><p>Maybe the devs could add some kind of watchdog into MP. Because the freeze is detected ("VMRhelper9: playing =>repaint"), so it could restart...?!</p><p>(Even if it is just a workaround?!)</p></blockquote><p></p>
[QUOTE="jcee, post: 149740, member: 10506"] I have tried 0.2.2.0 + several SVNS, different gfx drivers, updates motherboard and chipset drivers etc.. and codecs. I use the Nvidia pure video codec as it offers superior image quality. Basically the recorded streams freeze after a while when wacthing them. The workaround is skipping some minutes into future/past (which helps sometimes) to get in going again, or stop and restart. The problem exists also without MP, just using WMP. What I found out so far: 1. Any time the video freezes I get an "VMR9helper: playing => repaint x" entry in the logfile, where x is a number. 2. Some people pointed out that it might be caused by bad signal quality and errors in the stream. I checked with PVAstrumento and it reported lots of errors. I see that this could be a problem, but nervertheless the playing mechanism must be that tolerant to just continue playing. One would expect errors in a cable TV DVB stream... ! 3. To improve antenna signal I exchanged all my wiring, took away all splitters and things of that kind, replaced the antenna socket in the wall. With little success. I have to mention that my old DVB-reciever had no problems at all, even with the old cables. Maybe its reciever is of much better quality or it has some kind of error correction build in.. ! (I use a FloppyDTV (DVB-C)) 4. When I playback the files with Nero, they play fine. Maybe Nero ist using another technique or codec. I do not know whether a different codec or a different demuxer or a different render is the cure for the problem... ! (Or if Nero does so preprocessing of the stream, before or after demuxing it) Conclusion: MP relies on the external mechanisms of Windows: E.g. codecs, demultiplexers, renderers. These "chain" seems not that reliable to deal with DVB-streams like other system are. What can be done here to solve the problem? I heard lots of people complaining about these kind of problems, at some place it causes freezes, some other experience stuttering. I guess it is always good to improve cabeling and signal strength, but it looks like beeing just a workaround. I would not expect an DVB-C stream to be 100% free of errors. This problem is driving me nuts. Can please someone help?! Maybe the devs could add some kind of watchdog into MP. Because the freeze is detected ("VMRhelper9: playing =>repaint"), so it could restart...?! (Even if it is just a workaround?!) [/QUOTE]
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