[SCIFIO] reuse reader for files of same format

[Mark Hiner]

Should be fixed on master. Let me know if you run into any more issues
reusing readers though.


On Mon, Aug 26, 2013 at 8:02 AM, Mark Hiner <hinerm at gmail.com> wrote:

> See Issue 57 <https://github.com/scifio/scifio/issues/57>
>
>
> On Mon, Aug 26, 2013 at 7:53 AM, Mark Hiner <hinerm at gmail.com> wrote:
>
>> Hi Michael,
>>
>>   This definitely should work. The Metadata attached to a Reader should
>> determine the image dimensionality, and the Metadata should be re-parsed
>> automatically when setting the source.
>>
>>  Oh.. but looking at the source, the PNG reader has state (it remembers
>> the last plane it read. So if the reader was stateless (which it's supposed
>> to be) it should work. I'll just have to make a pass through the formats
>> and remove any state from the readers, or if that's not possible I'll make
>> sure they reset properly when calling setSource.
>>
>> Thanks for pointing this out,
>> Mark
>>
>>
>> On Mon, Aug 26, 2013 at 7:13 AM, Michael Zinsmaier <
>> michael.zinsmaier at gmx.de> wrote:
>>
>>> Hi together,
>>>
>>> is it possible to use the same reader for multiple files of the same
>>> format?
>>> I want to read e.g. 10  .png files that may differ in their
>>> dimensionality but use all the same format and encoding can I reuse a
>>> reader instead of doing the potentially expensive format tests for each
>>> file. We tried it naively with reader.setSource which somehow works but
>>> dimensionality and size data is not rediscovered => the reader tries to
>>> load all images with the same size.
>>>
>>> Is their a better way to do this?
>>> (We still want to use the format discovery for the first image but
>>> assume for all others that they have the same format.)
>>>
>>> Best Regards Michael
>>>
>>
>>
>
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