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MediaPortal 1
WebService and Mobile Access
Popular Plugins
MPExtended
Streaming Profiles and multiple cores
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<blockquote data-quote="mrceolla" data-source="post: 973796" data-attributes="member: 109048"><p>Thanks again for the reply, Oxan,</p><p> </p><p>Does HTTP streaming use all cores by default as well? I see that appears to be some sort of variation of the VLC profiles as the Transcoder node mentions VLCWrapperHTTPLiveStreaming. However with both of them I'm getting pauses in playback when trying to stream an HD AVC mkv file. With ffmpeg set to '-threads 4', no problems. Recorded TV does not have these issues but I'm assuming that is related to the codec those files were recorded with which must take less resources to transcode.</p><p> </p><p>I have a dual Xeon setup with 2 L5420 chips, each with four 2.5Ghz cores, so 8 cores total. In task manager, when using VLC or HTTP, I see one MPExtended process consuming a max of 15 CPU. When using ffmpeg with '-threads 4' I see one ffmpeg process consuming up to 70+, which is odd since it is more than 50% and I only allotted 4 of the 8 cores, but nevermind that. The point is that the VLC profiles are not keeping up with the transcoding of certain videos and it 'appears' that they may not be making use of multiple cores. What are you thoughts on all of that?</p><p> </p><p>On a side note, I see that sometimes MPExtended transcoding processes continue to run even after the client has ended playback. Perhaps this is an aMPdroid thing or a result of having to use an external player, but if not, it would be great if MPExtended could detect a dropped client and end the transcoding process. It seems to do this some times but not all of the time. Not sure why.</p><p> </p><p>Thanks for your time!</p></blockquote><p></p>
[QUOTE="mrceolla, post: 973796, member: 109048"] Thanks again for the reply, Oxan, Does HTTP streaming use all cores by default as well? I see that appears to be some sort of variation of the VLC profiles as the Transcoder node mentions VLCWrapperHTTPLiveStreaming. However with both of them I'm getting pauses in playback when trying to stream an HD AVC mkv file. With ffmpeg set to '-threads 4', no problems. Recorded TV does not have these issues but I'm assuming that is related to the codec those files were recorded with which must take less resources to transcode. I have a dual Xeon setup with 2 L5420 chips, each with four 2.5Ghz cores, so 8 cores total. In task manager, when using VLC or HTTP, I see one MPExtended process consuming a max of 15 CPU. When using ffmpeg with '-threads 4' I see one ffmpeg process consuming up to 70+, which is odd since it is more than 50% and I only allotted 4 of the 8 cores, but nevermind that. The point is that the VLC profiles are not keeping up with the transcoding of certain videos and it 'appears' that they may not be making use of multiple cores. What are you thoughts on all of that? On a side note, I see that sometimes MPExtended transcoding processes continue to run even after the client has ended playback. Perhaps this is an aMPdroid thing or a result of having to use an external player, but if not, it would be great if MPExtended could detect a dropped client and end the transcoding process. It seems to do this some times but not all of the time. Not sure why. Thanks for your time! [/QUOTE]
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WebService and Mobile Access
Popular Plugins
MPExtended
Streaming Profiles and multiple cores
Contact us
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