Hello! 
I'm trying to generate a stream from ll-dash but when I do it gpac throws this : `[Dasher] First CTS 17160 in segment 9 drifting by 1.16 (more than half a segment duration) from segment time, consider reencoding or using segment timeline` or `[Dasher] Segment 34 duration 0.88 less than half DASH duration, consider reencoding or using segment timeline` which generates latency and the video is out of sync with the audio.  

I tried to put the `stl` option but the video does not look smooth and has enough latency. 

I thought it was due to CPU resources but everything is fine, I also tried to increase the gpac threads but I don't see any change in performance.

`gpac -i rtmp://<rtmp-server>/live -o http://<origin-server>:8080/live/public/playlist.mpd:gpac:segdur=2:cdur=0.2:asto=1.8:cmaf=cmfc:profile=dashif.ll:dmode=dynamic:template=segment_dash:rdirs=gmem:hmode=push:max_cache_segs=14 -threads=4`


- [x] I looked for a similar issue and couldn't find any.
- [x] I tried with the latest version of GPAC. Installers available at http://gpac.io/downloads/gpac-nightly-builds/
- [x] I give enough information for contributors to reproduce my issue (meaningful title, github labels, platform and compiler, command-line ...). I can share files anonymously with this dropbox: https://www.mediafire.com/filedrop/filedrop_hosted.php?drop=eec9e058a9486fe4e99c33021481d9e1826ca9dbc242a6cfaab0fe95da5e5d95

Detailed guidelines: http://gpac.io/2013/07/16/how-to-file-a-bug-properly/




First CTS causes DASH streaming video delay
This is a GitHub Issue
repo:gpac
owner:gpac
Title : First CTS causes DASH streaming video delay
Issue date:

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Hello! 
I'm trying to generate a stream from ll-dash but when I do it gpac throws this : `[Dasher] First CTS 17160 in segment 9 drifting by 1.16 (more than half a segment duration) from segment time, consider reencoding or using segment timeline` or `[Dasher] Segment 34 duration 0.88 less than half DASH duration, consider reencoding or using segment timeline` which generates latency and the video is out of sync with the audio.  

I tried to put the `stl` option but the video does not look smooth and has enough latency. 

I thought it was due to CPU resources but everything is fine, I also tried to increase the gpac threads but I don't see any change in performance.

`gpac -i rtmp://<rtmp-server>/live -o http://<origin-server>:8080/live/public/playlist.mpd:gpac:segdur=2:cdur=0.2:asto=1.8:cmaf=cmfc:profile=dashif.ll:dmode=dynamic:template=segment_dash:rdirs=gmem:hmode=push:max_cache_segs=14 -threads=4`


- [x] I looked for a similar issue and couldn't find any.
- [x] I tried with the latest version of GPAC. Installers available at http://gpac.io/downloads/gpac-nightly-builds/
- [x] I give enough information for contributors to reproduce my issue (meaningful title, github labels, platform and compiler, command-line ...). I can share files anonymously with this dropbox: https://www.mediafire.com/filedrop/filedrop_hosted.php?drop=eec9e058a9486fe4e99c33021481d9e1826ca9dbc242a6cfaab0fe95da5e5d95

Detailed guidelines: http://gpac.io/2013/07/16/how-to-file-a-bug-properly/




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