Re: suggested new GST_TYPE

[Jan Schmidt-2]

<quote who="[hidden email]">

> I would like to know if an existing GST_TYPE_... can do the following thing :
>
> [start, end, step]

No, there is no existing GST_TYPE that can handle this. It could be useful,
but might be tricky to integrate with the existing elements. On the other
hand, it might not - it's hard to know until one tries. It might turn out to
be easy, given that GST_TYPE_INT_RANGE_STEP is simply a more compact
representation of a GST_TYPE_LIST containing integers, and can always
be expanded to the equivalent GST_TYPE_LIST.

J.

> I mean, for example with GST_TYPE_INT_RANGE, [10, 100] all value bettween
> 10 and 100 are accepted.
> But I need something like GST_TYPE_INT_RANGE_STEP, [10, 100, 5], and only
> value 10, 15, 20, 25, 30, ....., 90, 95, 100 are accepted.
>
> I need it in dshowvideosrc, because video size have a step. For EXAMPLE,
> accepted video width are between 80 and 768 with a step of 4, and
> accepted video height are between 60 and 576 with a step of 2.
>
> I am sure it is the same thing for v4l2src.
>
> Sincerely,
>
> Julien
>

--
Jan Schmidt                                  [hidden email]

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[Julien.Isorce]

Thx you for reply.

Ok so I will use GST_TYPE_LIST to handle that.

> <quote who="[hidden email]">
>
>> I would like to know if an existing GST_TYPE_... can do the following
>> thing :
>>
>> [start, end, step]
>
> No, there is no existing GST_TYPE that can handle this. It could be
> useful,
> but might be tricky to integrate with the existing elements. On the other
> hand, it might not - it's hard to know until one tries. It might turn out
> to
> be easy, given that GST_TYPE_INT_RANGE_STEP is simply a more compact
> representation of a GST_TYPE_LIST containing integers, and can always
> be expanded to the equivalent GST_TYPE_LIST.
>
> J.
>
>> I mean, for example with GST_TYPE_INT_RANGE, [10, 100] all value
>> bettween
>> 10 and 100 are accepted.
>> But I need something like GST_TYPE_INT_RANGE_STEP, [10, 100, 5], and
>> only
>> value 10, 15, 20, 25, 30, ....., 90, 95, 100 are accepted.
>>
>> I need it in dshowvideosrc, because video size have a step. For EXAMPLE,
>> accepted video width are between 80 and 768 with a step of 4, and
>> accepted video height are between 60 and 576 with a step of 2.
>>
>> I am sure it is the same thing for v4l2src.
>>
>> Sincerely,
>>
>> Julien
>>
>
> --
> Jan Schmidt                                  [hidden email]
>
> ENOSIG
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2008.
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