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Video-Streaming: Audio starts delayed, async, then catches up - Caching issue?
#1
Hello!

I have a problem when playing streamed videos over the network since I updated from 8.04 to 9.04.1. The videos are send by a VDR-Streaming-server. The format is MPEG2-TS or -PS, both do show the same issue. The video starts playing quite fast with normal speed, but there is no sound. The sound comes in after about 5-6 seconds, obviously matching the video-output on the very beginning. The video then slows down (looks like a slowmo) and "waits" until the audio catched up. After another 5-6 seconds both audio and video are in sync and play at normal speed as desired.

I am using kubuntu 8.04 with Kernel 2.6.24-19 on both machines. Architecture is x86. The original stream is generated by VDR from a DVB-S source. The XBMC was installed using apt-get. The same behaviour could be observed on multiple laptops. Server is a Core 2 Quad at 2,33 GHz, 4 GB RAM, Laptops are Core 2 Duo at 2 GHz, 4 GB RAM with nvidia graphics.

I was looking for the cache-settings but after doing some reading i found out that they were removed.

Any hints how to solve the problem?

Best regards
Robert
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#2
-Robert- Wrote:Hello!

I have a problem when playing streamed videos over the network since I updated from 8.04 to 9.04.1. The videos are send by a VDR-Streaming-server. The format is MPEG2-TS or -PS, both do show the same issue. The video starts playing quite fast with normal speed, but there is no sound. The sound comes in after about 5-6 seconds, obviously matching the video-output on the very beginning. The video then slows down (looks like a slowmo) and "waits" until the audio catched up. After another 5-6 seconds both audio and video are in sync and play at normal speed as desired.

I am using kubuntu 8.04 with Kernel 2.6.24-19 on both machines. Architecture is x86. The original stream is generated by VDR from a DVB-S source. The XBMC was installed using apt-get. The same behaviour could be observed on multiple laptops. Server is a Core 2 Quad at 2,33 GHz, 4 GB RAM, Laptops are Core 2 Duo at 2 GHz, 4 GB RAM with nvidia graphics.

I was looking for the cache-settings but after doing some reading i found out that they were removed.

Any hints how to solve the problem?

Best regards
Robert

Use mediainfo to qualify your problem video content (google for it). pastebin this info and xbmc.log. Otherwise we have no clue.
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Video-Streaming: Audio starts delayed, async, then catches up - Caching issue?0