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Message: <blockquote data-quote="velis" data-source="post: 546798" data-attributes="member: 96429">I have tested with Elecard grabber. That one works fine with no artifacts / dropped packets.So the problem seems to lie in the MPIPTVSource. Though I can't figure out why.I've been looking at the source and I don't see any particular faults.The filter just reads the socket and passes the data on to renderer (TsWriter? in this case).Initially I thought there may be a problem with read buffer being only 128KB (15ms for 8Mbit stream) (at least 64KB read before passed on), but checking out MSDN documentations doesn't suggest this to be the case as this is only intermediate buffer which is passed on immediately after it reaches 64KB.The filter itself should work as intended, even the thread priority is set to higest. But for some reason packets still get dropped.Is it possible that the buffer would be too large? With very low bitrates, such as audio only streams 64KB could mean as much as 10 seconds (64Kbit audio). Maybe TsWriter's demuxer eliminates data that is too "late"? Together with 300ms timeshift buffer set for live TV this should not be an issue.I'll play around with source a bit to see if there's a combination of time + size that lessens the problem.Edit: Oops, found one possible culprit:if GetDeliveryBuffer call fails, the loop is repeated and any existing data discarded (m_bufsize = 0 at the beginning of the relevant loop).The other possible culprit is fillBuffer implementation. If getDeliveryBuffer returns buffer that is smaller than current m_bufsize, data is again discarded. This is a much more possible cause as getDeliveryBuffer only fails if allocator somehow disappeared.Darn, wrong again. getDeliveryBuffer should return 128KB as requested and verified in DecideBufferSize <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown    :(" loading="lazy" data-shortname=":(" /></blockquote>

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