Ace Film - Revision history

Jsummers: Category->Animation

2024-05-23T18:54:55Z

Category->Animation

2021-05-09T19:55:49Z

2018-11-28T17:55:22Z

2013-08-22T19:37:33Z

2013-08-20T22:14:15Z

2013-06-13T03:08:21Z

2012-11-19T02:47:10Z

Added basic notes from studying some example files.

2012-11-18T18:50:36Z

2012-11-18T18:48:09Z

‎Overview

2012-11-17T20:13:35Z

@@ Line 1: / Line 1: @@
 {{FormatInfo
 |formattype=electronic
-|subcat=Video
+|subcat=Animation
 }}
@@ Line 31: / Line 31: @@
 * There are some examples in the [https://archive.org/details/ftpsites_arcade.demon.co.uk_2013.06.17 Arcade BBS Filebase] (may be [[Spark]]-compressed)
 [[Category:RISC OS]]

@@ Line 8: / Line 8: @@
 '''Ace Film''' is an animation file format used on early RISC OS systems ([[RISC OS filetype|file type]] D6A, AceFilm), allowing graphics created using Ace Computing's applications to be stored as a series of frames in a file, to be replayed layer using the Projector application. Applications used to generate Ace Film files included Tween, Mogul and [[Euclid (Ace Computing)|Euclid]].
-== Notes ==
+== Format details ==
-''[Ed. note: Need more sources/research. The files from Arcade BBS don't seem to match this format (title actually begins at offset 0x2).]''
-−
-''[Author's note: Agreed. The files I have follow the format described below, but those from Arcade BBS seem to be different. I should have paid a bit more attention to that.]''
 All lengths and offsets are in bytes. Words are 4 bytes.
@@ Line 30: / Line 27: @@
      data_offset + data_length - 4: data_length
-== References ==
+== Sample files ==
-* [http://arcade.demon.co.uk/cgi-bin/filesearch?key=ace%20film Arcade BBS Filebase search for "ace film"]
+* There are some examples in the [https://archive.org/details/ftpsites_arcade.demon.co.uk_2013.06.17 Arcade BBS Filebase] (may be [[Spark]]-compressed)
 [[Category:RISC OS]]

@@ Line 6: / Line 6: @@
 == Overview ==
-Ace Film is an animation file format used on early RISC OS systems (file type D6A, AceFilm), allowing graphics created using Ace Computing's applications to be stored as a series of frames in a file, to be replayed layer using the Projector application. Applications used to generate Ace Film files included Tween, Mogul and [[Euclid (Ace Computing)|Euclid]].
+'''Ace Film''' is an animation file format used on early RISC OS systems ([[RISC OS filetype|file type]] D6A, AceFilm), allowing graphics created using Ace Computing's applications to be stored as a series of frames in a file, to be replayed layer using the Projector application. Applications used to generate Ace Film files included Tween, Mogul and [[Euclid (Ace Computing)|Euclid]].
 == Notes ==
@@ Line 32: / Line 32: @@
 == References ==
 * [http://arcade.demon.co.uk/cgi-bin/filesearch?key=ace%20film Arcade BBS Filebase search for "ace film"]
 [[Category:RISC OS]]

@@ Line 10: / Line 10: @@
 == Notes ==
 ''[Ed. note: Need more sources/research. The files from Arcade BBS don't seem to match this format (title actually begins at offset 0x2).]''
 All lengths and offsets are in bytes. Words are 4 bytes.

← Older revision		Revision as of 22:14, 20 August 2013
Line 9:		Line 9:

	== Notes ==		== Notes ==
		+	''[Ed. note: Need more sources/research. The files from Arcade BBS don't seem to match this format (title actually begins at offset 0x2).]''

	All lengths and offsets are in bytes. Words are 4 bytes.		All lengths and offsets are in bytes. Words are 4 bytes.

← Older revision		Revision as of 03:08, 13 June 2013
Line 31:		Line 31:
	* [http://mdfs.net/Docs/Comp/Acorn/Filetypes The Unofficial Acorn Filetypes List]		* [http://mdfs.net/Docs/Comp/Acorn/Filetypes The Unofficial Acorn Filetypes List]
	* [http://arcade.demon.co.uk/cgi-bin/filesearch?key=ace%20film Arcade BBS Filebase search for "ace film"]		* [http://arcade.demon.co.uk/cgi-bin/filesearch?key=ace%20film Arcade BBS Filebase search for "ace film"]
		+
		+	[[Category:RISC OS]]

← Older revision		Revision as of 02:47, 19 November 2012
Line 7:		Line 7:

	Ace Film is an animation file format used on early RISC OS systems (file type D6A, AceFilm), allowing graphics created using Ace Computing's applications to be stored as a series of frames in a file, to be replayed layer using the Projector application. Applications used to generate Ace Film files included Tween, Mogul and [[Euclid (Ace Computing)\|Euclid]].		Ace Film is an animation file format used on early RISC OS systems (file type D6A, AceFilm), allowing graphics created using Ace Computing's applications to be stored as a series of frames in a file, to be replayed layer using the Projector application. Applications used to generate Ace Film files included Tween, Mogul and [[Euclid (Ace Computing)\|Euclid]].
		+
		+	== Notes ==
		+
		+	All lengths and offsets are in bytes. Words are 4 bytes.
		+
		+	0x0: File length (4 bytes)
		+	0x4: Title (12 bytes, ASCII, low bytes ignored, can contain spaces)
		+	0x10: Offset into the file of data (data_offset)
		+	0x14:
		+	0x18:
		+	0x1c: Number of colours?
		+
		+	Each frame is described by a data length followed by the data itself, then
		+	followed by the data length again, presumably to make it easy to traverse the
		+	file in both directions:
		+
		+	data_offset: length of data (including this word) (data_length)
		+	...
		+	data_offset + data_length - 4: data_length

	== References ==		== References ==

← Older revision		Revision as of 18:50, 18 November 2012
Line 7:		Line 7:

	Ace Film is an animation file format used on early RISC OS systems (file type D6A, AceFilm), allowing graphics created using Ace Computing's applications to be stored as a series of frames in a file, to be replayed layer using the Projector application. Applications used to generate Ace Film files included Tween, Mogul and [[Euclid (Ace Computing)\|Euclid]].		Ace Film is an animation file format used on early RISC OS systems (file type D6A, AceFilm), allowing graphics created using Ace Computing's applications to be stored as a series of frames in a file, to be replayed layer using the Projector application. Applications used to generate Ace Film files included Tween, Mogul and [[Euclid (Ace Computing)\|Euclid]].
		+
		+	== References ==
		+
		+	* [http://mdfs.net/Docs/Comp/Acorn/Filetypes The Unofficial Acorn Filetypes List]
		+	* [http://arcade.demon.co.uk/cgi-bin/filesearch?key=ace%20film Arcade BBS Filebase search for "ace film"]