On Tue Jun 7 Marton Balint wrote:
On Wed, 1 Jun 2016, Adrian Cruceru wrote:
>/Hi, />//>/Patch is attached, />//>/Quick notes: />/- Playing HLS streams - FFPlay stalls a
bit before each segment download />/- Stalls accumulate and FFPlay falls behind />/- We get log warning
and segment skip. />//>/Fix: />/- Just make sure HLS is marked as a real time stream. /
I guess using -infbuf fixes your usecase as well, right? Without -infbuf
ffplay buffers 25 frames, so for 25 fps video content, if playing stops,
this means that it is unable to acquire the first few packets of a
new segment within 1 second. Is this really the case?
Do you have a public test stream where this can be tested?
Thanks,
Marton
Hi Marton,
You are correct in both items:
1) "-infBuf" fixes the issue - the patch just adds code to avoid
manually setting flag.
2) "unable to acquire first few packets" - yes, that's the case:
- if download takes longer then the 25 frames then we skip a bit at each
download.
- the skips accumulate over time
- the streaming server will eventually age out old frames and cause a
full segment skip (as detailed in initial email).
You can find some public streams here:
http://www.addictradio.net/en/labs/ but takes a while to reproduce
Let me know if I can help with any logs / if you want me to test out
other patches or look into a different area for a fix
Thanks,
Adrian
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