Finding a mislabeled .jpeg file
in [Windows XP]
|
Prev: windows media player #11
Next: remove unnecessary tools
From: Goomba on 7 Aug 2010 12:43 Last year I mislabeled a .jpeg video and now I cannot find it. The extension could have been named .doc or .txt, and the file name is now unknown. Is there any way to search for .jpeg files regardless of how they may be labeled? Thank you,
From: Spamlet on 7 Aug 2010 13:00 "Goomba" <Goomba(a)discussions.microsoft.com> wrote in message news:7B4D9BEA-A671-44D3-9E8B-332C751FB7B0(a)microsoft.com... > Last year I mislabeled a .jpeg video and now I cannot find it. The > extension > could have been named .doc or .txt, and the file name is now unknown. Is > there any way to search for .jpeg files regardless of how they may be > labeled? Thank you, Just search for big files. The big one without a video extension is your mislabelled file. S
From: VanguardLH on 7 Aug 2010 14:59 Goomba wrote: > Last year I mislabeled a .jpeg video and now I cannot find it. JPEG is a picture format, not a video format. > The extension could have been named .doc or .txt, and the file name is > now unknown. ..doc files are documents typically composed using Word. .txt files are plain text files. Neither are pictures or videos. Documents aren't usually much over 5-20 KB in size. Videos will be MUCH larger, like in the many-megabyte range, or higher. > Is there any way to search for .jpeg files regardless of how they may > be labeled? Have you yet even tried using the file search included in Windows? Search on all files but enter something for the Size criteria, like 200KB (or whatever you might think is the size of this mislabelled file). Videos can be megabytes to even gigabytes in size. You didn't explain the nature of the missing video file, like if you recorded 60 seconds using a digital camera, downloaded it from the Net, converted it from a tape or DVD movie, or what. You might want to start searching for files above 20,000 KB (20MB) and then progressively lower the size if the prior search doesn't find your mislabelled file.
From: Paul on 7 Aug 2010 18:56 Goomba wrote: > Last year I mislabeled a .jpeg video and now I cannot find it. The extension > could have been named .doc or .txt, and the file name is now unknown. Is > there any way to search for .jpeg files regardless of how they may be > labeled? Thank you, It is possible to get info on files. I have two programs here that may be useful. One is specifically for movies, and if you're working with movies, that is the program to use. The other is general purpose, but may not do as good a job identifying movie types. ******* For video (like MJPEG a.k.a Motion JPEG), you can use GSPOT. It has a batch mode, which allows dragging and dropping a handful of files on the window at one time, and the "export" file will have printed in it, what the files are. http://gspot.headbands.com/ http://gspot.headbands.com/v26x/GSpot270a.zip (download) For general file identification, first consider which OSes use extensions and which do not. Windows is pretty dependent on extensions. Linux and Unix don't depend on the extension. Instead, Linux and Unix examine key bytes in the file (usually in the first 1Kbyte), and determine the file type that way. The operative term for the bytes they look at, is the "magic function". There is a port of the "file" program available. http://gnuwin32.sourceforge.net/ http://gnuwin32.sourceforge.net/packages/file.htm To get this working, you'll eventually end up with a folder called "bin" and in it, will be files like this. file.exe magic1.dll regex2.dll zlib1.dll If the package has an installer, it should add an entry to the Windows environment variable for execution "PATH". That way, when you type "file" at the command prompt (MSDOS window), the system will be able to find it. The dependencies for the file, must be in the folder with it, and as far as I know, the above list is complete. For me to test that at the moment, I can open a Command Prompt window, vopy a JPEG file into the "bin" folder, and type the name of the command, and see what it says. This first example, will print all the options the program has (--help calls up the help function, like /? would do for a Windows program). The second command example, carries out my test case. C:\Downloads\filetype_gnuwin32\bin> file --help C:\Downloads\filetype_gnuwin32\bin> file test.jpg test.jpg; JPEG image data, JFIF standard 1.01 Now, if I renamed that test file to test.txt, the answer would still be the same C:\Downloads\filetype_gnuwin32\bin> file test.txt test.txt; JPEG image data, JFIF standard 1.01 So the program does its determination of file type, without relying on the extension. Neither of those example utilities, is "user friendly". With a great deal of effort, they could be used in a script. You can still use them by hand, but it will take you a *long* time to find that file manually. Good luck, Paul
From: Mike S on 7 Aug 2010 19:57
On 8/7/2010 3:56 PM, Paul wrote: > Goomba wrote: >> Last year I mislabeled a .jpeg video and now I cannot find it. The >> extension could have been named .doc or .txt, and the file name is now >> unknown. Is there any way to search for .jpeg files regardless of how >> they may be labeled? Thank you, > > It is possible to get info on files. I have two programs here > that may be useful. One is specifically for movies, and if you're working > with movies, that is the program to use. The other is general purpose, > but may not do as good a job identifying movie types. > > ******* > > For video (like MJPEG a.k.a Motion JPEG), you can use GSPOT. > It has a batch mode, which allows dragging and dropping a handful > of files on the window at one time, and the "export" file will > have printed in it, what the files are. > > http://gspot.headbands.com/ > > http://gspot.headbands.com/v26x/GSpot270a.zip (download) > > For general file identification, first consider which OSes use > extensions and which do not. Windows is pretty dependent on > extensions. Linux and Unix don't depend on the extension. > Instead, Linux and Unix examine key bytes in the file > (usually in the first 1Kbyte), and determine the file type > that way. The operative term for the bytes they look at, > is the "magic function". > > There is a port of the "file" program available. > > http://gnuwin32.sourceforge.net/ > > http://gnuwin32.sourceforge.net/packages/file.htm > > To get this working, you'll eventually end up with > a folder called "bin" and in it, will be files like > this. > > file.exe > magic1.dll > regex2.dll > zlib1.dll > > If the package has an installer, it should add an entry to > the Windows environment variable for execution "PATH". That > way, when you type "file" at the command prompt (MSDOS window), > the system will be able to find it. The dependencies for the > file, must be in the folder with it, and as far as I know, > the above list is complete. > > For me to test that at the moment, I can open a Command Prompt > window, vopy a JPEG file into the "bin" folder, and type the name > of the command, and see what it says. This first example, will > print all the options the program has (--help calls up the help > function, like /? would do for a Windows program). The second > command example, carries out my test case. > > C:\Downloads\filetype_gnuwin32\bin> file --help > C:\Downloads\filetype_gnuwin32\bin> file test.jpg > > test.jpg; JPEG image data, JFIF standard 1.01 > > Now, if I renamed that test file to test.txt, the answer would > still be the same > > C:\Downloads\filetype_gnuwin32\bin> file test.txt > > test.txt; JPEG image data, JFIF standard 1.01 > > So the program does its determination of file type, without > relying on the extension. > > Neither of those example utilities, is "user friendly". With > a great deal of effort, they could be used in a script. You > can still use them by hand, but it will take you a *long* time > to find that file manually. > > Good luck, > Paul I like XNView, freeware, great program, I just changed the extension of a file from .jpg to .txt and it showed a graphic thumbnail just as it did for the .jpg extension, no difference, XNView lets you browser folders and displays thumbnails for each graphics file, just another option. Mike |