[poppler] About pdf to image

[杨辉强]

Hi, mpsuzuki:
    Thank you very much. My system is ubuntu. I don't know much about 
memory-based file system.
Does it mean utility such as ramdisk.

On 12/19/2011 12:01 PM, suzuki toshiya wrote:
> Hi,
>
> I guess poppler should have something you want, at least
> internally, because the bindings for other frameworks (Qt,
> GLib, cpp etc) may deal with the images without creating/
> cleaning temporary image files.
>
> BTW, before searching such, I want to ask an off-topic question;
> your target operating system does not support memory-based
> file system?
>
> Regards,
> mpsuzuki
>
> 杨辉强 wrote:
>> Hi, all:
>>   Thank Brad. I don't want to save images into files and then read 
>> files into memory.
>> The disk IO expense is high. So what's the utility from another 
>> application can do this job? Wish your advice.
>>
>> Thank you!
>>
>> On Sun, 18 Dec 2011 11:34:17 AM Brad Hards wrote:
>>
>> This should have gone to a mailing list.
>>
>> How are you possibly going to use the utility from another 
>> application and
>> copy to memory without making any code changes?
>>
>> Brad
>>
>>
>>
>> On 12/18/2011 08:47 AM, 杨辉强 wrote:
>>> Hi, all:
>>>    In web search engine, I want to support the pdf snapshot. So I 
>>> want to convert pdf files to images and save the images in a 
>>> database. I don't want to change the poppler code.
>>> Because that's notconvenient for upgrade the poppler's code.
>>>
>>> Thank you for your precious advices.
>>>
>>> On 12/17/2011 03:16 PM, Brad Hards wrote:
>>>> On Sat, 17 Dec 2011 02:09:21 PM 杨辉强 wrote:
>>>>>      I am a newbie to poppler. I use utils/pdftoppm.cc to convert 
>>>>> a pdf
>>>>> file into jpeg images.The generated images are save to disk files. 
>>>>> Now I
>>>>> wish to know whether it can save the images in memory such as a
>>>>> vector<std::string>.  Wishing you can give me some advices.
>>>> I'm sure that is possible, but you'd need to make some code changes 
>>>> (and
>>>> consider whether an arbitrary binary blob, containing nulls, is 
>>>> really a good
>>>> idea in a std::string). The code changes should basically be taking 
>>>> the
>>>> existing output writer and copying in to a memory location instead. 
>>>> I don't
>>>> see you'd need to make any real popper changes. How you integrate 
>>>> that depends
>>>> on the application you're trying to create.
>>>>
>>>> What is the end-use for this?
>>>>
>>>> Brad
>>>> _______________________________________________
>>>> poppler mailing list
>>>> poppler at lists.freedesktop.org
>>>> http://lists.freedesktop.org/mailman/listinfo/poppler
>>>
>>>
>>> _______________________________________________
>>> poppler mailing list
>>> poppler at lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/poppler
>>
>>
>>
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