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Subject: Re: [gentoo-user] [OT] codec for video embedded in presentation
From: Stroller <stroller@stellar.eclipse.co.uk>
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On 1 January 2013, at 15:22, Francisco Ares wrote:
> ...
> I've heard (or read) that before, to me it seems quite strange that =
one of the main products from MS to be so outdated in this area.

AVI has been around a long time. It is inevitably prone to "bitrot", =
then.=20

AIUI the AVI specification states a number of valid codecs that can be =
used; AIUI h264 (for example) is not amongst them.

It will work on some systems (particularly open source) to put h264 / =
AAC into an AVI - that's not supported on others. So if you need to play =
the video on a Mac, a games console or a set-top box then you may be in =
trouble.=20

As a rule of thumb, most new video-playing devices have hardware h264 =
support; use .mp4 or .mkv for h264.

> I tried an MP4 renamed as AVI, and it worked.

If you merely renamed the file then you didn't change the container.

http://html5.xoofoo.org/video.html

A Linux video player will probably ignore the file extension - it'll =
figure out what kind of container you used based on the file's header =
bytes and on the file structure. The default video player installed on =
Windows or Mac may not be so clever.

Stroller.