AVI - Revision history

Aschlafly: Reverted edits by Shjt (talk) to last revision by NathanG

2011-09-13T15:51:23Z

Reverted edits by Shjt (talk) to last revision by NathanG

Shjt at 14:24, September 13, 2011

2011-09-13T14:24:17Z

NathanG: see also

2008-05-20T01:59:08Z

Ed Poor: Frames

2007-10-01T16:49:42Z

Frames

Ed Poor: See Frames.

2007-10-01T16:49:24Z

See Frames.

Learn together: Form

2007-10-01T16:35:09Z

Form

Learn together: Category

2007-10-01T16:34:28Z

Ed Poor: frames per second

2007-10-01T15:22:19Z

frames per second

Ed Poor: more than you wanted to know - I digress into frame rates

2007-10-01T15:21:27Z

more than you wanted to know - I digress into frame rates

New page

'''AVI''' stands for [[Audio Video Interleave]], which is a file format (or "container") for audio and video information which is "interleaved". This is a fancy way of saying it's a movie with sound.

Video is stored in "frames", which are snapshot images of a moving picture. These are typically captured (and shown) at a fixed rate, for example, 24 frames per second. Television in the US is 30 frames per second.

Old-fashioned movies, such as World War I newsreels, were shot at a slower frame rate (such as 16 frames per second). When these are added into a modern 24 fps movie, often they are played at the same frame rate, which speeds everything up noticeabley. It is possible, of course, to program a computer to play frames at a variable rate, so that the old 16 fps footage would appear at normal speed, and even 24 fps movies could play at 24 frames per second, but to save money or development time, this is rarely done. It seems to be easier to convert 24 fps to 30 fps by playing one frame twice and and the next frame 3 times.

See [[Video for Windows]].

← Older revision		Revision as of 15:51, September 13, 2011
Line 1:		Line 1:
−	~~▄▄█▀▀ █▬█ █ ▀█▀~~	+	'''AVI''' stands for [[Audio Video Interleave]], which is a file format (or "container") for audio and video information which is "interleaved". This is a fancy way of saying it's a movie with sound.
		+
		+	==See also==
		+	*[[Frame]]s.
		+	*[[Video for Windows]].
		+
		+	[[Category:Media]]

← Older revision		Revision as of 14:24, September 13, 2011
Line 1:		Line 1:
−	~~'''AVI''' stands for [[Audio Video Interleave]], which is a file format (or "container") for audio and video information which is "interleaved". This is a fancy way of saying it's a movie with sound.~~	+	▄▄█▀▀ █▬█ █ ▀█▀
−
−	~~==See also==~~
−	*[[Frame]]s.
−	*[[Video for Windows]].
−
−	~~[[Category:Media]]~~

@@ Line 1: / Line 1: @@
 '''AVI''' stands for [[Audio Video Interleave]], which is a file format (or "container") for audio and video information which is "interleaved". This is a fancy way of saying it's a movie with sound.
-See [[Frame]]s.
+==See also==
+*[[Frame]]s.
-See [[Video for Windows]].
+*[[Video for Windows]].
 [[Category:Media]]

@@ Line 1: / Line 1: @@
 '''AVI''' stands for [[Audio Video Interleave]], which is a file format (or "container") for audio and video information which is "interleaved". This is a fancy way of saying it's a movie with sound.
-See [[Frames]].
+See [[Frame]]s.
 See [[Video for Windows]].
 [[Category:Media]]

@@ Line 1: / Line 1: @@
 '''AVI''' stands for [[Audio Video Interleave]], which is a file format (or "container") for audio and video information which is "interleaved". This is a fancy way of saying it's a movie with sound.
-Video is stored in "[[frame]]s", which are snapshot images of a moving picture. These are typically captured (and shown) at a fixed rate, for example, 24 frames per second (fps). Television in the US is 30 frames per second.
+See [[Frames]].
-Old-fashioned movies, such as World War I [[newsreel]]s, were shot at a slower frame rate (such as 16 frames per second). When these are added into a modern 24 fps movie, often they are played at the same frame rate, which speeds everything up noticeably. It is possible, of course, to program a computer to play frames at a [[variable rate]], so that the old 16 fps footage would appear at normal speed, and even 24 fps movies could play at 24 frames per second, but to save money or development time, this is rarely done. It seems to be easier to convert 24 fps to 30 fps by playing one frame twice and and the next frame 3 times.
+See [[Video for Windows]].
 [[Category:Media]]

← Older revision		Revision as of 16:34, October 1, 2007
Line 6:		Line 6:

	See [[Video for Windows]].		See [[Video for Windows]].
		+
		+	[[Category:Media]]