[digiKam-users] QtAv - too much stutter on Win 10

[Gilles Caulier]

Well, between 7.2. and 7.3, QtAv has no fundamental changes.

digiKam windows bundle is cross compiled with MXE, which provides ffmpeg.
Probably an update was done in MXE.

Go to digiKam Help/Components info dialog and look at the "libav*" versions
for both digiKam releases. libav are ffmpeg internal libraries.

Best

Gilles Caulier

Le ven. 10 sept. 2021 à 21:58, Iñigo <news at imagedworld.com> a écrit :

> Hi,
>
> My hard discs are directly attached to a host adapter, there are not in a
> network.
> 7.2 works flawlessly.
>
> Iñigo.
>
>
>
> El 10/09/2021 a las 21:45, Gilles Caulier escribió:
>
> Hi,
>
> This kind of dysfunction with the network can be relevant of a missing
> cache mechanism. I don't know if QtAv + ffmpeg has this feature.
>
> Also you must know that ffmpeg codec for Windows are cross compiled and
> certainly do not use the native Windows acceleration feature.
>
> Best
>
> Gilles Caulier
>
> Le ven. 10 sept. 2021 à 15:29, Iñigo <news at imagedworld.com> a écrit :
>
>> El 10/09/2021 a las 15:15, Boz Avram escribió:
>> > I use a reasonably powerful laptop, with Win 10 and DK 7.3; db is
>> local, photos and videos on NAS, about 15k.
>> >
>> > Issue: Every playback of my .AVI and .mov files through DigiKam
>> exhibits pronounced stutter, to a point of making the experience
>> unpleasant. No such issues with any other video player I have used on these
>> files. I am aware of the capability to use, within DK, on an item by item
>> basis, an external player ( for example, I often use VLC with silky smooth
>> experience on the same files), but that defeats one of the very strong
>> features of DigiKam, which is highly integrated functionality to support
>> seamless management of all digital media (both photo and video).  In my
>> work flow, a story consists of a sequence of photos with interspersed short
>> movies.
>> >
>> > The issue seems to be specific to Windows, as I have no issues playing
>> the same videos through DK on my MAC (which also eliminates the NAS as a
>> potential source; I had exactly the same issue even when media was on the
>> same laptop).
>> >
>> > My hope, since I like what DK offers overall, is that this issue is
>> specific to my configuration, or if wider, that it could be addressed
>> through development. Hence, a question: are other Windows users having
>> these kinds of issues, and if there are any without, I’d appreciate any
>> pointers on the configuration/HW they use.
>> >
>> > Thanks in advance, Avram
>>
>>
>> Hi,
>>
>> Same here.
>> Windows 10 Pro.
>> Files are stored in a SAS drive with plenty of bandwidth.
>> DK7.2 works as expected, 7.3 stutters badly.
>> Files are played as they should with any other video player.
>>
>> Iñigo.
>>
>
>
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