[digiKam-users] Extracting audio from .mp4 file

[Andrey Goreev]

You can write a shell script that does what you need using ffmpeg and call
the script from digiKam.
I guess you will need two scripts - one for Linux (e.g. bash), one for
Windows (power shell if it is available on Win 7).
It should not take too long to figure out the script.

Thanks,
Andrey


On Mon, Jan 27, 2020 at 6:33 AM Tac Tacelosky <tacman at gmail.com> wrote:

> Thanks.  Yes, I'm using both those tools now, and they work fine for me.
> But I need to come up with an easy-to-use cross-platform system for an
> interviewing workflow with limited internet.  My idea was to use digikam,
> since it has such explicit support for importing media from SD cards.  I
> could then ask the users to select the photos and videos they want for the
> project (crop the photos, etc.)
>
> The next step of the process needs just the audio, or a super-low-quality
> video (e.g 1 fps), so the files can be quickly uploaded to a website, where
> computers and people can transcribe and translate the content.  That's the
> step I'm trying to solve right now.  I'm using kdenlive for some of the
> photo/video selection, but it lacks customized batch jobs, customized
> proxies (which prompted this question), and extracting audio puts the .flac
> file in the same directory as the video, etc.
>
> I'm trying to avoid asking the users to install ffmeg, so thought there
> might be a way to set something in a batch queue manager to create the
> lower-quality videos or extract the audio, and skip kdenlive for this part.
>
> I use Ubuntu, but others who want to use this use Windows and Mac.  If I
> knew docker better, I'd probably wrap everything in a docker container,
> especially now that Windows 10 has much better support for it.  But some of
> the computers are older, and probably not even running Windows 10.
>
> I guess my feature request would be that ffmpeg and ffprobe be available
> as customizable tools.
>
> Anyway, thanks for the suggestions, I'll play around with the User Shell
> Script.
>
> Tac
>
> On Mon, Jan 27, 2020 at 4:19 AM Mick Sulley <mick at sulley.info> wrote:
>
>> Pretty sure you can do it with kdenlive
>>
>>
>> On 26/01/2020 19:18, Tac Tacelosky wrote:
>> > Is there any way to use digikam to extract the audio from a movie clip
>> > to a wav or mp3 file?
>> >
>> > Thanks,
>> >
>> > Tac
>> >
>>
>
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