Kostya: /* Games that use this format */

2021-05-01T16:00:20Z

Games that use this format

← Older revision		Revision as of 09:00, 1 May 2021
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	== Games that use this format ==		== Games that use this format ==
	[https://www.mobygames.com/game/dos/im-meen I.M. Meen]		[https://www.mobygames.com/game/dos/im-meen I.M. Meen]
			[https://www.mobygames.com/game/dos/chill-manor Chill Manor]

	[[Category: Game Formats]]		[[Category: Game Formats]]
	[[Category: Video Codecs]]		[[Category: Video Codecs]]

Kostya: Created page with "* Company: Animation Magic Inc. This is an animation format containing paletted video and raw PCM. == Container format == The animation files has the following parts: * cont..."

2021-05-01T12:54:00Z

Created page with "* Company: Animation Magic Inc. This is an animation format containing paletted video and raw PCM. == Container format == The animation files has the following parts: * cont..."

New page

* Company: Animation Magic Inc.

This is an animation format containing paletted video and raw PCM.

== Container format ==
The animation files has the following parts:
* container header
* frame offsets (from the palette end)
* palette in RIFF Palette format
* video and audio chunks interleaved

Container header (all integer values are little-endian):
4 bytes "ANI "
4 bytes total data size
4 bytes "hdr "
4 bytes unknown, should be always one?
4 bytes version (1 or 2)
2 bytes frames per second (usually 10)
4 bytes audio sampling rate
2 bytes (version 2 only) number of channels (always 1 for version 1)
2 bytes (version 2 only) bits per sample (8 or 16, always 8 for version 1)
2 bytes frame width
2 bytes frame height
4 bytes total number of frames
4 bytes unknown
4 bytes audio chunk size (for version 1 it should be sampling rate divided by fps)
4 bytes unknown

The header is followed by 32-bit start offsets for the frame (frame contains both video and audio part), the offsets are calculated from the end of palette.

RIFF Palette format is specified in [https://www.aelius.com/njh/wavemetatools/doc/riffmci.pdf RIFF specification] section "Palette File Format".

Frames contain the following data: 32-bit video chunk size, video chunk payload, 32-bit audio chunk size, audio chunk payload (raw PCM).

== Video compression ==

Video compression is intra-only and [[Run Length Encoding|RLE]]-based with number of possible colours limited to 128. Colour 0 is always transparency colour.

The compression is simple: read input byte, if its value is below <code>0x80</code> then output it as is, otherwise the actual colour value is low 7 bits and you need to read a run value in the following byte (run value of zero means to fill the rest of the current line with the colour).

== Games that use this format ==
[https://www.mobygames.com/game/dos/im-meen I.M. Meen]

[[Category: Game Formats]]
[[Category: Video Codecs]]

Animation Magic ANI - Revision history

Kostya: /* Games that use this format */

Kostya: Created page with "* Company: Animation Magic Inc. This is an animation format containing paletted video and raw PCM. == Container format == The animation files has the following parts: * cont..."