On 07/08/2020 13:25, Moritz Barsnick wrote:
On Thu, Aug 06, 2020 at 15:00:55 +0200, Alfred E. Heggestad wrote:
I am wondering if DASH muxer supports variable framerate.
[...]
What I have seen is that DASH and HLS behaves differently
regarding variable framerate input.
muxer: format: audio delay:
DASH: m4s yes
DASH w HLS playlist: m4s yes
HLS muxer: mpegts no
I suspect this is due to the fact that ffmpeg does not handle variable
framerate in MOV/MP4 well (which m4s is a variant of, IIUC).
Thanks for the answer. Yes m4s is fragmented MP4.
This also seems to match my observations.
/alfred
in m4s the audio and video track is stored in separate .m4s files.
after some time they become out of sync.
I don't think the separate files are the issue. HLS can also separate
video and audio into separate files, as far as I remember.
Cheers,
Moritz
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