[vlc-devel] Controling playback function

[Kaarlo Räihä]

2012/1/2 Gilles Gallee <G_gallee at yahoo.fr>

>
> Le 2 janv. 2012 à 19:36, Kaarlo Räihä <kaarlo.raiha at gmail.com> a écrit :
>
> 2012/1/2 Gilles GALLEE < <g_gallee at yahoo.fr>g_gallee at yahoo.fr>
>
>>
>> Hi!
>>
>> May be my question is stupid but as a beginner I don't know if it's
>> possible or not.
>>
>> I will shoot a film from a car (the front view).
>> I have to record the car position and car speed linked to the video
>> timestamp.
>> Then, I would like to replay the video according to a new speed (like a
>> simulator).
>> It means that I would like to easily control the video speed with the VLC
>> viewer.
>> Could it be possible ?
>>
>
> With VLC you can control playback speed via the 1.00x part of GUI. (or via
> rc interface, or via --rate= command-line parameter)
>
>
> Can i control the rate precisely under 1.00 (.3 .678 ...) and change it i
> real time ( every 100 ms) ?
>

Yes, it is a float value so it accepts decimals. And you can change it real
time, but in current release changing it every 100 ms via GUI might be a
bit difficult. Via rc it should be easy.


>
>
>
>
>> In addition, I ask question to myself : do I need to shoot the film with
>> a Phantom camera (HD + high fps) ? or simply using a fullhd video cam ?
>>
>
> Depends about what you want. Usually if you just make playback faster, you
> don't need high FPS, but if you want to slow down stuff and keep smooth
> motion, then you will benefit from hight FPS.
>
>
> Thats really what i want go do ?
>
>
> Gilles
>
>
>> Thank you for your answers!
>> And whish you an happy new year !
>>
>> Regards
>>
>> Gilles
>>
>>
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