File Format Research - Revision history

Sam at 16:03, 17 August 2021

2021-08-17T16:03:53Z

Sam at 07:54, 30 October 2020

2020-10-30T07:54:18Z

Sam at 07:52, 30 October 2020

2020-10-30T07:52:36Z

Sam at 07:34, 30 October 2020

2020-10-30T07:34:05Z

Sam at 10:33, 13 June 2020

2020-06-13T10:33:07Z

Admin: Created page with "When trying to figure out the type of a file... Here's some useful sites * [https://www.google.com/?tbm=pts Google Patent Search] * [https://github.com/zsx/ossbuild/blob/a510..."

2020-05-18T20:32:47Z

Created page with "When trying to figure out the type of a file... Here's some useful sites * [https://www.google.com/?tbm=pts Google Patent Search] * [https://github.com/zsx/ossbuild/blob/a510..."

New page

When trying to figure out the type of a file...
Here's some useful sites

* [https://www.google.com/?tbm=pts Google Patent Search]
* [https://github.com/zsx/ossbuild/blob/a510b4fb1b15922c14dd6311a24f139b8a790699/Main/GStreamer/Source/gst-plugins-good/gst/qtdemux/qtdemux.c Great list of FourCCs]

See if there's existing code:

* [https://github.com/ Github] - Good place to search for "magic" values. Usually four bytes, search for the decimal and hexadecimal values both big and little endian.

Existing file format description:
* [https://www.loc.gov/preservation/digital/formats/fdd/descriptions.shtml Library of Congress]
* [https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-winprotlp/92b33e19-6fff-496b-86c3-d168206f9845 Microsoft Protocols]

@@ Line 10: / Line 10: @@
 Existing file format description:
-* [https://www.loc.gov/preservation/digital/formats/fdd/descriptions.shtml Library of Congress] - Librarians are fighting a battle of being able to read old digital files. Paper is easy, bits are not.
+* [https://www.loc.gov/preservation/digital/formats/fdd/browse_list.shtml Library of Congress] - Librarians are fighting a battle of being able to read old digital files. Paper is easy, bits are not.
 * [https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-winprotlp/92b33e19-6fff-496b-86c3-d168206f9845 Microsoft Protocols] - Microsoft has released documentation on a lot of their file formats.

@@ Line 2: / Line 2: @@
 Here's some useful sites we have found for deciphering files.
-* [https://www.google.com/?tbm=pts Google Patent Search]
+* [https://www.google.com/?tbm=pts Google Patent Search] - It is a long shot but you just might find something useful here.
 * [https://github.com/zsx/ossbuild/blob/a510b4fb1b15922c14dd6311a24f139b8a790699/Main/GStreamer/Source/gst-plugins-good/gst/qtdemux/qtdemux.c Great list of FourCCs] - A [https://en.wikipedia.org/wiki/FourCC FourCC] is a Four Character Code that is used to identify a data blob.

@@ Line 7: / Line 7: @@
 See if there's existing code:
-* [https://github.com/ Github] - Good place to search for "magic" values. Usually four bytes, search for the decimal and hexadecimal values both big and little endian.
+* [https://github.com/ Github] - Good place to search for [https://en.wikipedia.org/wiki/Magic_number_(programming) "magic"] values. Usually four bytes, search for the decimal and hexadecimal values both big and little endian.
 Existing file format description:
 * [https://www.loc.gov/preservation/digital/formats/fdd/descriptions.shtml Library of Congress]
 * [https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-winprotlp/92b33e19-6fff-496b-86c3-d168206f9845 Microsoft Protocols]