Big file saving question.

Dear all,
I am writing a foto ablum application in RIA.I want to save
all the fotos in bytearray,and then save it as a file in user's
computer,so that the user can open their file to retouch without
downloading or uploading.
Question is that I afraid if the fotos' filesize is too
big,it may make an error such as "out of memory".
What should I do,please?
Thank you!

I hope you try to say AIR instead of RIA. (bcuz RIA means
rich internet application = any asyn applicaiton including ajax
etc)
If you try to make it as a RIA application (which means it
runs in a browser), you can not touch to client's file system so
you need to send the data to server to make it downloadable.(any
php script that will get the bytarray, return an image would work
for this case)
for the AIR case, you dont need to worry for the file size
unless the user does not have enough space.

Similar Messages

Newbie snapshot file saving question

I want to have Mullesight take a snapshot and place a JPG inside my "snapshots" folder on my desktop. The problem is that it keeps saving the same same file name and won't allow me to take more than one picture. I wish to have successive pictures named differently, such as picture1.jpg, picture2.jpg, etc., in my snapshots folder.
I copied a sample script from Mullesight's author to take a snaphot and save a JPEG file. How can I modify it so that I can do what I want?
Thanks for any help.
try
tell application "MulleSight"
-- save prior state
set shouldScale to should scale
set useSelection to use selection
-- now set what we need
set should scale to false
set use selection to false
-- AppleScript still uses old file/alias magic by default
-- therefore we have to use POSIX
set srcImg to (POSIX path of "/tmp/picture.tiff")
-- save the image as TIFF (other formats are not supported)...
save in srcImg as "tiff"
-- reset prior state
set should scale to shouldScale
set use selection to useSelection
end tell
-- just for the fun of it, convert TIFF into JPEG
set dstImg to (POSIX path of "/tmp/picture.jpg")
tell application "Image Events"
launch
set img to open srcImg
save img as JPEG in file dstImg with icon
close img
end tell
on error errorMsg
display dialog errorMsg
end try

Keep in mind that I do not have an 'iSight' camera.
Code portion that works, which assumes that the 'Picture.tiff' file is saved to current user's 'Desktop' and when converted is saves a 'Picture.jpg' ... 'Picturex.jpg'' where 'x' is 1 or higher in numerical value.
property inc_Value : 0
property file_Name : "Picture"
set desktop_path to ((path to desktop folder from user domain) as string)
set file_Path to (desktop_path & file_Name)
tell application "Finder" to set desktop_List to name of every file of folder desktop_path whose name extension is "jpg"
set newFileName to my handlerepeats(desktopList, "")
try
tell application "Image Events"
launch
set img to open ((file_Path & ".tiff") as alias)
save img as JPEG in file (desktop_path & newFileName & ".jpg") with icon
close img
tell application "Finder" to delete ((file_Path & ".tiff") as alias)
end tell
end try
on handlerepeats(localList, local_Inc)
if (local_List contains (file_Name & local_Inc & ".jpg")) then
set inc_Value to inc_Value + 1
my handlerepeats(localList, (inc_Value as string))
else
set inc_Value to 0
return (file_Name & local_Inc)
end if
end handle_repeats
Total code ...
property inc_Value : 0
property file_Name : "Picture"
set desktop_path to ((path to desktop folder from user domain) as string)
set file_Path to (desktop_path & file_Name)
try
tell application "MulleSight"
-- save prior state
set shouldScale to should scale
set useSelection to use selection
-- now set what we need
set should scale to false
set use selection to false
set srcImg to (file_Path & ".tiff") -- or, you may have to use the next line instead.
-- set srcImg to (POSIX path of (file_Path & ".tiff")) -- use if the above line fails.
-- save the image as TIFF (other formats are not supported)...
save in srcImg as "tiff"
-- reset prior state
set should scale to shouldScale
set use selection to useSelection
end tell
tell application "Finder" to set desktop_List to name of every file of folder desktop_path whose name extension is "jpg"
set newFileName to my handlerepeats(desktopList, "")
try
tell application "Image Events"
launch
set img to open ((file_Path & ".tiff") as alias)
save img as JPEG in file (desktop_path & newFileName & ".jpg") with icon
close img
tell application "Finder" to delete ((file_Path & ".tiff") as alias)
end tell
end try
on error errorMsg
display dialog errorMsg
end try
on handlerepeats(localList, local_Inc)
if (local_List contains (file_Name & local_Inc & ".jpg")) then
set inc_Value to inc_Value + 1
my handlerepeats(localList, (inc_Value as string))
else
set inc_Value to 0
return (file_Name & local_Inc)
end if
end handle_repeats
Mac OS X (10.4.4)

File saving question

Hi all,
I am not too familiar with how to get a set of data save into txt file format. The following attachment is my vi (is a bit messy) and a screenshot on where I want the data to be save is also attached.
It would be extremely grateful if someone could kindly offer some help.
Thanks a lot,
Adi
Attachments:
write to file.png ‏169 KB
Work1_v2.vi ‏1168 KB

Hi Adi,
You can go through the example which I have attached. This may be the solution you are looking for. You can use shift registers if your data to be written into the txt file is continuous. Or also you can use a true constant on "append to file?" ternminal of write to spreadsheet function.
Regards,
Nitzz
(Kudos are always Welcome, Accept as a solution if it is the One)
Attachments:
Untitled 1.vi ‏7 KB

Question about reading a very big file into a buffer.

Hi, everyone!
I want to randomly load several characters from
GB2312 charset to form a string.
I have two questions:
1. Where can I find the charset table file? I have used
google for hours to search but failed to find GB2312 charset
file out.
2. I think the charset table file is very big and I doubted
whether I can loaded it into a String or StringBuffer? Anyone
have some solutions? How to load a very big file and randomly
select several characters from it?
Have I made myself understood?
Thanks in advance,
George

The following can give the correspondence between GB2312 encoded byte arrays and characters (in hexadecimal integer expression).
import java.nio.charset.*;
import java.io.*;
public class GBs{
static String convert() throws java.io.UnsupportedEncodingException{
StringBuffer buffer = new StringBuffer();
String l_separator = System.getProperty("line.separator");
Charset chset = Charset.forName("EUC_CN");// GB2312 is an alias of this encoding
CharsetEncoder encoder = chset.newEncoder();
int[] indices = new int[Character.MAX_VALUE+1];
for(int j=0;j<indices.length;j++){
       indices[j]=0;
for(int j=0;j<=Character.MAX_VALUE;j++){
    if(encoder.canEncode((char)j)) indices[j]=1;
byte[] encoded;
String data;
for(int j=0;j<indices.length;j++) {
     if(indices[j]==1) {
            encoded =(Character.toString((char)j)).getBytes("EUC_CN");
                      for(int q=0;q<encoded.length;q++){
                      buffer.append(Byte.toString(encoded[q]));
                      buffer.append(" ");
            buffer.append(": 0x");buffer.append(Integer.toHexString(j));
            buffer.append(l_separator);
    return buffer.toString();
//the following is for testing
/*public static void main(String[] args) throws java.lang.Exception{
   String str = GBs.convert();
   System.out.println(str);*/

I have my audio files saved as AIFF, is there any way to tell the iTunes match to play back 256 version instead to save on cellular data use?

I have been using the match for about 5 months and it's very cool to have all the tunes with me at all times. But, my ATT 'unlimited' data plan slows down after a certain point and I can't effectively stream the big files I uploaded to the cloud until it resets the next month. I get about 12-15 days of no problems and then the rest of the month I'm taking cd's in the car.
Help!

Using iCloud Status you can see which Songs are uploaded. These can be placed in a playlist and saved to audio CD - in addition copy the playlist content to an open folder on your desktop.
Delete the Songs from your library & cloud; import the Songs as 256 AAC from CD; update iTunes Match.
At your discretion you can delete the local Songs once more and add back the original files from your desktop folder.
This way you have the original files for local playback and 256 AAC files in the cloud for download.

I've doubled my RAM but still can't save big files in photoshop...

I have just upgraded my Ram from the shipped 4GB to 8GB but I still can't save big images in photoshop. It seems to have made no difference to the speed of general tasks and saving and I can't save big files in photoshop at all. I already moved massive amounts of files off my computer and onto my external hard drive, so there is much less in my computer now, and twice the RAM but it is making no noticeable difference. When I click memory, under 'about my mac' it shows that the RAM is installed and now has twice the memory. Could this be something to do with photoshop? I'm running CS6.

Also, I just calculated 220 cm into inches and this is roughly 86.5 inches. Over 7 feet in length.
WIth an image that large, you may want to consider down sampling to a lower DPI to help with being able to work on and process images of this size much easier and it will be easier for your Print house to process, as well.
You might want to consider working with these rather large images at 225 DPI instead of 300 if resolution at close distances is still a concern.
Or what you good try is working with the images at 300 DPI, but then save them/export them as a Jpeg image at the highest image quality setting.
I do a lot of project where I use a high resolution jpeg image to save on image proceesing overhead.
The final printed images still come out pretty clear, clean and crisp without having to process those large files at a print house or having to deal with using that full resolution image in a page layout or illustration program.

Files saved to NFS share by MS word cause finder to loose sync w/filesystem

I am posting this bug report(#4699323, opened Aug 24th, 2006) I have open with Apple because there is no indication that they have even noticed it. Please reply if you have similar problems, questions, or suggestions. Bug report follows.
24-Aug-2006 04:17 PM Erik Meitner:
Summary:
Files saved to an NFS volume by Microsoft Word dissappear from the Finder. Many times "Ghosted" icons of "Word Work Files" are left behind.
Steps to Reproduce & Actual Results:
1. Mount an NFS volume from a server(Mac or Linux, doesn't matter. NFS options do not matter.) from the Finder or command line.
2. Open a Finder window to the mount point.
3. Create a word document(test.doc), save to the NFS mount point.
4. Make sure both the Word window and Finder window are visible.
5. Type a single letter, Save.
6. "Word Work File L_200098113"(the number varies.) apears and test.doc dissapears from the folder. Then the icon for "Word Work File L_200098113" goes "ghosted" (test.dc IS still there, just not shown. You can verify this in the shell )
7. Type a letter, Save.
8. The work file dissapears and is replaces by "Word Work File L_200098113"
9. Rinse, Repeat ad infinitum.
Expected Results:
File saved & Finder does NOT get out of sync with the filesystem.
Regression:
* Only happens on NFS volumes.
* Only happens with MS Word.
* It happens on Panther(10.3.9) and Tiger(up to 10.4.7)
* "Fast saves" in Word has no effect.
* The user has full access to the root of the NFS volume.(a .TemporaryItems folder IS being created)
* Verified that problem happens with all Versions of Office 2004 from 11.2.3 to 11.2.6(current).
* Happens with ALL users: admin, local, and non-local(LDAP authenticated, network homes).
Notes:
* The work files(with "ghosted" icons) never show up when listing the folder via the CLI.
* The original(test.doc) always shows in the CLI.
* Relaunching the Finder usually causes the "missing" files to show again, but not always.
* Problem is exacerbated by users losing faith in the system, thus saving very frequently, guaranteeing that the problem will always happen.
* Only workaround is to have users work on files "off the network" on a local disk.
30-Aug-2006 01:45 PM Erik Meitner:
Screen shot attached showing initial state of Finder.
'1.tiff' was successfully uploaded
30-Aug-2006 01:46 PM Erik Meitner:
Screen shot attached showing state of Finder after 1st save.
'2.tiff' was successfully uploaded
30-Aug-2006 01:47 PM Erik Meitner:
Screen shot attached showing state of Finder after 3rd save.(2nd save same as 1st)
'3.tiff' was successfully uploaded
01-Sep-2006 08:37 AM Erik Meitner:
Relaunching the Finder will restore the icons to the proper state most of the time. One can also use this application to force a refresh of a folders contents: http://www.brockerhoff.net/nudge/index.html
I am not sure of the internal workings of "Nudge", but it does seem to be the best hack available to get the Finder to work properly.
01-Sep-2006 08:48 AM Erik Meitner:
I should also add that this problem is repeatable on 15 different Macs of different models, all running 10.3.9 with the latest updates.
11-Sep-2006 12:41 PM Erik Meitner:
Problem is repeatable on all 6 of our Machines running Tiger(10.4.7) with all the latest updates.
20-Sep-2006 02:25 PM Erik Meitner:
The "Nudge" tool mentioned previously does not always work especially for some users who experience this problem the worst. It will only restore the file to a "ghosted" icon that is still inaccessable.
Moving the file to a different folder and deleting the resource fork file is the only solution in this case.

OS X 10.4.8 update has not altered the behavior of this bug. The Office 2004 11.30 update seems to have caused the problem to happen less frequently. I would say it now happens half as frequently.

PSD files saved in TemporaryItems has disappeared.

Ahhhhhhhhhh PSD files saved in TemporaryItems has disappeared.
Hi I was working in Photoshop CS5.1 (OS X 10.7.5) and the original image I started with was saved in TemporaryItems, long story short I spent 4 hours working on an illustration and saving the .psd files\ versions in the same TemporaryItems folder, planning to move all the files tonight. Just came back to it and the files are gone! I may cry pixel tears, desperately running out of swear words.
If anyone can help I would be so very appreciative.
Cheers Matt from Melbourne

Silly question, but, are you sure that's where Photoshop was saving? I've had it happen before where I open a file from folder A, then do a Save As, only to find that (for whatever reason) Photoshop has been saving to some other folder entirely.
Have you tried Open Recent Files in photoshop to see if maybe they were saved somewhere else?
Or, try this; go to Photoshop, create a blank document, then immediately Save As and look at where it's pointing. If it is not at the Temporary folder you expect, look there for your files.
Failing that, have you tried a search on your computer?
Silly. But I'm trying to cover all the bases.
--OB

Photoshop Elements 11 file saving proterties

I am currently using Photoshop Elements 11 trail version to decide if I like it enough to upgrade.
Yesterday, while saving my files - .jpg, .png, psd - etc - when I'd go to access the file to upload, it wouldn't recognize the file.
Then when I went back into PSE 11 to open the file, it wouldn't recognize the file format, no matter what
I have went ahead & uninstalled the program, then restarted my computer, reinstalled & it's doing the same thing.
If this is a known issue, I certainly have no desire to upgrade. I use PSE 8 previously with zero problems.
Please, if anyone can answer why this is happening, I'd really appreciate it.
As for PSE 11 - I do feel, aside from this file saving issue, Adobe got so many things right - I love how PSE 11 has been changed, it's much easier to use, but this file issue, I don't have time for it when my clients are expecting turn around times from me.
Thanks much!
Tori

Thank you for all your responses.
First let me start off with, I am not new to saving files. I've been designing & saving files for over 10+ yrs. I've never ran into this problem with any program until using PSE 11. All my files were saving perfectly fine. This problem just started yesterday with PSE 11 for me. That's why I uninstalled, restarted & reinstalled with a restart after the install.
When I go to save a file, these are my steps
1. File
2. Save as
3. Name of the file (no characters - only using letters, maybe letters & numbers in combination together)
4. I select what format I wish to save it in.
5. Click save
When I did this yesterday, my files were appearing to save, but actually, they were not saving no matter what format I was trying to save that as.
How I found out this was happeneing - I went to upload a file to the web - I was then told the file was not a proper file format. I tried various things such as saving as a png, jpeg, tiff, gif - not of which were working. That's when I uninstalled PSE 11 & as said above, reinstalled, etc.
Screen shot below shows what the icons ended up being - problem right there!
What message I get when I try to open the file
Message I get when I try to upload the file to the web
This is WHY I feel this is a problem with the particular PSE 11 I'm using (downloaded directly from Adobe's site) It's a trial vertson. And I always try to try programs before I invest in them, no matter if they're $20 or $500
I hope all this will help thos of you trying to answer this mystrey question for me. As I mentioned, I've never had this happen before.
Today - it seems to be saving just fine..... and I haven't changed how I save files at all. If this is a known issue with PSE 11, I just wish to know so I don't waste my money on it. I love all the changes Adobe has made to PSE 11, but if it's full of bugs - I'd rather pass is all.
Thanks so much once again!

Document file saving confusion using desktop "alias" folder

I'm having trouble finding files in Snow Leopard. My question is , where are "saved" document files supposed to go?
I like using a desktop alias folder, but over time I've played around with Time Machine, adding and deleted folders in the Dock, and created three or four different alias folders and basically I've screwed the pooch; there are now non-duplicate folders named "User Name" and "User Name 2" (plus the empty "Documents" sub-folder I've heard is a place holder for older software files ?) on the HD and I don't what is where the new files are being saved.
In any case, I may have two, three or even four sets of partial documents, so I need to do some work moving files around, trashing some and condsolidating the rest into the master Documents file ... but before I go through all that I need to make sure I understand where the OS wants saved files to go.
Is this path correct ? MS Word > Save > Documents Alias Folder > HD > Users > User Name > Documents.
If that's correct, then I can go to the various Word 2011 forums and find out how to make sure files are being saved using that path.
Thanks,
Brian

Stuffit's default is to decompress files saved to the desktop.
Pages documents are actually zipped folders.
Look in the Stuffit preferences and see if you can turn it off. Or get out of the habit of saving to the desktop, there are better places to organise your work
I disagree that Stuffit is useless, in fact it really is the swiss army knife of decompression and pays to have it around. Amongst other archive utilities.
Peter

PDF or Excel file saved to Network folder Intermittently has "Date Modified" changed to an older date

Client saves files locally to her Win 7 64-bit laptop and they are fine when it comes to the date modifed stamp. On occasion a few of these files each day, when saved to the home directory on the server, get the Date Modified stamp changed. Time is never
the same and can be set for las tweek or - literally - 1990, 2004, 2010, etc. I have seen tech articles talking about the different options for saving the file date based on an embedded image or attachment of some type, but that has been ruled out. And this
is not the local saved file time being modified within the first minute or two of a locally copied file.
Any ideas how a file saved to a network share can randomly and intermittently have the date modified to a much older date? Have scanned for malware as well.... Thanks!

Hi
Make sure the server or nas where it's saved is sync'ed with it,s time source, and be sure it's update for the OS's patch.
Regards, Philippe
Don't forget to mark as answer or vote as helpful to help identify good information. ( linkedin endorsement never hurt too :o) )
Answer an interesting question ? Create a
wiki article about it!

How to read big files

Hi all,
I have a big text file (about 140MB) containing data I need to read and save (after analysis) to a new file.
The text file contains 4 columns of data (so each row has 4 values to read).
When I try to read all the file at once I get a "Memory full" error messags.
I tried to read only a certain number of lines each time and then write it to the new file. This is done using the loop in the attached picture (this is just a portion of the code). The loop is repeated as many times as needed.
The problem is that for such big files this method is very slow and If I try to increase the number of lines to read each time, I still see the PC free memory decending slowly at the performance window....
Does anybody have a better idea how to implement this kind of task?
Thanks,
Mentos.
Attachments:
Read a file portion.png ‏13 KB

Hi Mark & Yamaeda,
I made some tests and came up with 2 diffrenet aproaches - see vis & example data file attached.
The Read lines aproach.vi reads a chunk with a specified number of lines, parses it and then saves the chunk to a new file.
This worked more or less OK, depending on the dely. However in reality I'll need to write the 2 first columns to the file and only after that the 3rd and 4th columns. So I think I'll need to read the file 2 times - 1st time take first 2 columns and save to file, and then repeat the loop and take the 2 other columns and save them...
Regarding the free memory: I see it drops a bit during the run and it goes up again once I run the vi another time.
The Read bytes approach reads a specified number of bytes in each chunk until it finishes reading all the file. Only then it saves the chunks to the new file. No parsing is done here (just for the example), just reading & writing to see if the free memory stays the same.
I used 2 methods for saving - With string subset function and replace substring function.
When using replace substring (disabled part) the free memory was 100% stable, but it worked very slow.
When using the string subset function the data was saved VERY fast but some free memory was consumed.
The reading part also consumed some free memory. The rate of which depended on the dely I put.
Which method looks better?
What do you recommand changing?
Attachments:
Read lines approach.vi ‏17 KB
Read bytes aproach.vi ‏17 KB
Test file.txt ‏1 KB

How do i open a VERY big file?

I hope someone can help.
I did some testing using a LeCroy LT342 in segment mode. Using the
Labview driver i downloaded the data over GPIB and saved it to a
spreadsheet file. Unfortunately it created very big files (ranging from
200MB to 600MB). I now need to process them but Labview doesn't like
them. I would be very happy to split the files into an individual file
for each row (i can do this quite easily) but labview just sits there
when i try to open the file.
I don't know enough about computers and memory (my spec is 1.8GHz
Pentium 4, 384MB RAM) to figure out whether if i just leave it for long
enough it will do the job or not.
Has anyone any experience or help they could offer?
Thanks,
Phil

When you open (and read) a file you usually move it from your hard disk (permanent storage) to ram. This allows you to manipulate it in high speeds using fast RAM memory, if you don't have enough memory (RAM) to read the whole file, you will be forced to use virtual memory (uses swap space on the HD as "virtual" RAM) which is very slow. Since you only have 384 MB of RAM and want to process Huge files (200MB-600MB) you could easily and inexpensively upgrade to 1GB of RAM and see large speed increases. A better option is to lode the file in chunks looking at some number of lines at a time and processing this amount of data and repeat until the file is complete, this will be more programming but will allow you to use much lass RAM at any instance.
Paul
Paul Falkenstein
Coleman Technologies Inc.
CLA, CPI, AIA-Vision
Labview 4.0- 2013, RT, Vision, FPGA

I saved my completed rendered video in Publish and Share as an MP4, but where is the file saved to. I set it to be saved on my desktop, but I don't see it. thanks

I saved my completed rendered video in Publish and Share as an MP4, but where is the file saved to. I set it to be saved on my desktop, but I don't see it. thanks

markg
What version of Premiere Elements and what computer operating system? You have a few other threads awaiting follow up, and consequently that information
is not available elsewhere.
What is your specific export...
Publish+Share
Computer
AVCHD
and Presets = MP4 - H.264 1920 x 1080p30 or something like that.
Specific please.
But what specifically are you entering in the Save In: field of the dialog that includes the Save button to initiate the export process.
Are you saving it as a file to the Desktop or to a specific folder on the Desktop? Have you given the export a distinctive file name?
The screenshot shows the Save In: to the Desktop as a file.
I have no idea of your background with the program, so I ask these questions so as to take nothing for granted.
If the computer Desktop is crowded, as mine often is, it is easy to have difficulty spotting a file save to the Desktop.
We will be watching for your follow up.
Thank you.
ATR

I did a backup from all my files saved in old external hd to time capsule. After that double checked and recover one file from TC to mac air and it worked just perfect. Today went through TC to recover another file and none of them were there?

I did a backup from all my files saved in old external hd to time capsule. After that double checked and recover one file from TC to mac air and it worked just perfect. Today went through TC to recover another file and none of them were there?Anybody has a clue what happened?

renatocremonese wrote:
I want to use it for backing up my Mac.
It's good for that . . .
But also I don't keep all my stuff in my Mac.
But not for that.
This older and not day-by-day usage files I want to store in the time machine.
You can do that (see below), but how are you going to back them up? If your only copies are on the TC, when (not if) it fails, you risk losing your only copy of the data.
Is it possible to split TC in two partitions.
No, but there are some workarounds, including making a fixed-size disk image on it to "reserve" some space. See #Q3 in Using Time Machine with a Time Capsule.
But you still won't have backups of the stuff you put there.
You don't say what kind of Mac you have. If it's a desktop model, just keep the external HD connected to it, and let Time Machine back it up along with your internal HD.
However, it sounds like you may have a laptop, where that's not going to be convenient. In that case, your best bet might be to copy the external HD to a disk image on the TC as above, then keep the HD in a safe place.
To finish, when i enter the TC and go through the Time line how can I get a file from there and move it back to Mac hd.
Via the "Star Wars" display, per #15 in Time Machine - Frequently Asked Questions.
You might also want to review the Time Machine Tutorial, and perhaps browse the rest of the FAQ.

Big file saving question.

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