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Ulrich Kobsa
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 Posted: Wed Sep 13, 2006 5:53 pm Post subject: TJPEGImage and memory size |
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Hi,
I need to store some TJPEGImages in a buffer with a maximal capacity of
n byte (n = 20MB in my case). So how can I get the real size in memory
of a TJPEGImage? I need this to calculate if the buffer capacity is
exceeded.
Thanks,
Ulrich |
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Lord Crc
Guest
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| Posted: Wed Sep 13, 2006 8:43 pm Post subject: Re: TJPEGImage and memory size |
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On 13 Sep 2006 05:53:48 -0700, "Ulrich Kobsa"
<ulrich.kobsa@t-online.de> wrote:
| Quote: | So how can I get the real size in memory
of a TJPEGImage? I need this to calculate if the buffer capacity is
exceeded.
|
If you need the compressed size, you'll have to compress it. One way
of doing that is to save it to a TMemoryStream (I assume you don't
have the image on disk already). If you want the uncompressed size,
just use "memsize:= width*height*3;"
- Asbjørn |
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Robert
Guest
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| Posted: Wed Sep 13, 2006 10:02 pm Post subject: Re: TJPEGImage and memory size |
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Hi,
the only way i found was to save the image in a MemoryStream:
JPG.SaveToStream(Stream)
then you can get the size from the stream:
Stream.Size
Robert
Lord Crc schrieb:
| Quote: | On 13 Sep 2006 05:53:48 -0700, "Ulrich Kobsa"
ulrich.kobsa@t-online.de> wrote:
So how can I get the real size in memory
of a TJPEGImage? I need this to calculate if the buffer capacity is
exceeded.
If you need the compressed size, you'll have to compress it. One way
of doing that is to save it to a TMemoryStream (I assume you don't
have the image on disk already). If you want the uncompressed size,
just use "memsize:= width*height*3;"
- Asbjørn |
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Ulrich Kobsa
Guest
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| Posted: Thu Sep 14, 2006 8:11 am Post subject: Re: TJPEGImage and memory size |
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Thanks for your help!
greetings,
Ulrich |
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