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Old 31st October 2012, 07:24   #1  |  Link
ruian.xu
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Join Date: May 2007
Posts: 15
Questions on Video Streaming to iOS and Android Devices Profiling

Hi, guys:

I'm an embedded software engineer starting to work on starting to work with Linux streaming solutions. And got no experience with network and smartphone OSes.

When we stream video to PC(receiving via VLC) on PC side, we found there's a latency of 1.2 seconds for H.264. It includes
  • sensor grabs data
  • data is sent over the network
  • VLC buffers and plays


We found out after a while, that there's buffering control on VLC. For H.264 streaming, however, the minimum we can set is 400 -- 500 ms. However, on Android phones, we were NOT able to find some software that has very short(minimum) delays/buffering.

Can anyone suggest
  • How is latency generally measured/profiled for video streaming to smart phones?
  • Do you have any network sniffing software on Android/iOS to recommend?
  • I saw in Apple's documentation that HTTP live streaming recommends 10s "file size". Anyway to overcome this? (Is jailbreaking required for installing sniffing tool on iOS?)
Thanks in advance!
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