https://bugs.kde.org/show_bug.cgi?id=442248

            Bug ID: 442248
           Summary: KIO-FUSE will force video player to read the whole
                    file, not stream it
           Product: kiofuse
           Version: 5.0.0
          Platform: Manjaro
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: a.saout...@gmail.com
          Reporter: ihi...@gmail.com
                CC: fab...@ritter-vogt.de, kio-bugs-n...@kde.org
  Target Milestone: ---

Created attachment 141435
  --> https://bugs.kde.org/attachment.cgi?id=141435&action=edit
GVFS network speed chart

SUMMARY
KIO-FUSE will force video player to read the whole file, not stream it

The webdav server is the same one ,below

STEPS TO REPRODUCE
1. open a webdav:// server in dolphin
2. find a big video in it
3. open with a external video player like MPV/VLC

OBSERVED RESULT

When I use dolphin mount the webdav directory and open the Video (`kio-fuse`)
inside dolphin,`kio` will make all video player (tested with `vlc/mpv`)  try to
download the whole file ,not stream it,the network speed chart looks like a
wall

https://invent.kde.org/system/kio-fuse/uploads/e273d4982b3ba32fd0a1b6508052cf1a/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20210910133844.png

I cd into the directory where the `kio` mounted  webdav to (like
`/run/user/1000/kio-fuse-AYWsZt/webdav/127.0.0.1:8888/`) the terminal is very
jam and slow when `ls`

Video play back is not work

EXPECTED RESULT

When I use  nautilus (`GFVS`) to open (mount) the `webdav` directory and open
the Video inside nautilus,all video player (tested with `vlc/mpv`) works well,
the video was streamed very well and the network speed chart looks like `wave`s

https://invent.kde.org/system/kio-fuse/uploads/373c6caeb4f6cba9bb3324e8b540850b/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20210910140615.png

I cd into the directory where the `GVFS` mounted  webdav to (like
`/run/user/1000/gvfs/dav:host=127.0.0.1,port=8888,ssl=false/`) the terminal is
very easy and smooth when `ls`

Video play back is  working well

This is the excepted 

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: 
Operating System: Manjaro Linux
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.85.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION

```
/usr/lib/kio-fuse -V
KIO FUSE version 5.0.0
FUSE library version 3.10.4
using FUSE kernel interface version 7.31
fusermount3 version: 3.10.4
```

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