Indeo 5 - Revision history

Maxpol: /* GOP header */

2010-11-11T11:30:10Z

GOP header

← Older revision		Revision as of 04:30, 11 November 2010
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	\| align="center" \| 24 \|\| <span id="transp_color">transp_color</span> \|\| \|\| Transparency fill color.		\| align="center" \| 24 \|\| <span id="transp_color">transp_color</span> \|\| \|\| Transparency fill color.
	\|-		\|-
	\| align="center" \| ?? \|\| <span id="alignment2">alignment2</span> \|\| \|\| \|\| Align the ~~biteader~~ on the next byte.		\| align="center" \| ?? \|\| <span id="alignment2">alignment2</span> \|\| \|\| \|\| Align the bitreader on the next byte.
	\|-		\|-
	\| align="center" \| 8 \|\| <span id="value1">value1</span> \|\| \|\| \|\| Unused.		\| align="center" \| 8 \|\| <span id="value1">value1</span> \|\| \|\| \|\| Unused.
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	\|\| GOP header extension.		\|\| GOP header extension.
	\|-		\|-
	\| align="center" \| ?? \|\| <span id="alignment3">alignment3</span> \|\| \|\| \|\| Align the ~~biteader~~ on the next byte.		\| align="center" \| ?? \|\| <span id="alignment3">alignment3</span> \|\| \|\| \|\| Align the bitreader on the next byte.
	\|}		\|}

Maxpol: /* Picture header */

2010-11-11T11:29:21Z

Picture header

← Older revision		Revision as of 04:29, 11 November 2010
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	* 0 => INTRA (key) frame		* 0 => INTRA (key) frame
	* 1 => INTER frame		* 1 => INTER frame
	* 2 => ~~unused~~		* 2 => droppable INTER frame (scalability mode only)
	* 3 => droppable INTER frame		* 3 => droppable INTER frame
	* 4 => NULL frame		* 4 => NULL frame

Suxen drol: now supported by FFmpeg

2010-02-14T01:13:28Z

now supported by FFmpeg

← Older revision		Revision as of 18:13, 13 February 2010
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	~~[[Category:Formats missing in FFmpeg]]~~
	[[Category:Video Codecs]]		[[Category:Video Codecs]]

Maxpol: /* Games using indeo5 cutscenes */

2010-01-17T02:22:23Z

Games using indeo5 cutscenes

← Older revision		Revision as of 19:22, 16 January 2010
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	== Games using indeo5 cutscenes ==		== Games using indeo5 cutscenes ==

			* Dino Crisis I: [http://en.wikipedia.org/wiki/Dino_Crisis]
	* Lemmings Revolution: [http://en.wikipedia.org/wiki/Lemmings_Revolution]		* Lemmings Revolution: [http://en.wikipedia.org/wiki/Lemmings_Revolution]
	* Mafia: The City of Lost Heaven [http://en.wikipedia.org/wiki/Mafia:_The_City_of_Lost_Heaven]		* Mafia: The City of Lost Heaven [http://en.wikipedia.org/wiki/Mafia:_The_City_of_Lost_Heaven]

Maxpol: /* Games using indeo5 cutscenes */

2010-01-17T00:45:15Z

Games using indeo5 cutscenes

← Older revision		Revision as of 17:45, 16 January 2010
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	* Lemmings Revolution: [http://en.wikipedia.org/wiki/Lemmings_Revolution]		* Lemmings Revolution: [http://en.wikipedia.org/wiki/Lemmings_Revolution]
			* Mafia: The City of Lost Heaven [http://en.wikipedia.org/wiki/Mafia:_The_City_of_Lost_Heaven]
	* Thief, Parts 1 & 2 : [http://en.wikipedia.org/wiki/Thief_(series)]		* Thief, Parts 1 & 2 : [http://en.wikipedia.org/wiki/Thief_(series)]

Maxpol: /* Games using indeo5 cutscenes */

2010-01-17T00:43:21Z

Games using indeo5 cutscenes

← Older revision		Revision as of 17:43, 16 January 2010
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	== Games using indeo5 cutscenes ==		== Games using indeo5 cutscenes ==

	Lemmings Revolution: [http://en.wikipedia.org/wiki/Lemmings_Revolution]		* Lemmings Revolution: [http://en.wikipedia.org/wiki/Lemmings_Revolution]
	Thief, Parts 1 & 2 : [http://en.wikipedia.org/wiki/Thief_(series)]		* Thief, Parts 1 & 2 : [http://en.wikipedia.org/wiki/Thief_(series)]


	[[Category:Formats missing in FFmpeg]]		[[Category:Formats missing in FFmpeg]]
	[[Category:Video Codecs]]		[[Category:Video Codecs]]

Maxpol: /* Games using indeo5 cutscenes */

2010-01-17T00:42:47Z

Games using indeo5 cutscenes

← Older revision		Revision as of 17:42, 16 January 2010
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	== Games using indeo5 cutscenes ==		== Games using indeo5 cutscenes ==

	Thief ~~Part~~ 1, 2 : [http://en.wikipedia.org/wiki/Thief_(series)]		Lemmings Revolution: [http://en.wikipedia.org/wiki/Lemmings_Revolution]
			Thief, Parts 1 & 2 : [http://en.wikipedia.org/wiki/Thief_(series)]


	[[Category:Formats missing in FFmpeg]]		[[Category:Formats missing in FFmpeg]]
	[[Category:Video Codecs]]		[[Category:Video Codecs]]

Maxpol: /* Annexes */

2010-01-16T21:40:39Z

Annexes

← Older revision		Revision as of 14:40, 16 January 2010
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	default is used when !([[#ph_flags\|ph_flags]] & 0x80)		default is used when !([[#ph_flags\|ph_flags]] & 0x80)

			== Games using indeo5 cutscenes ==

			Thief Part 1, 2 : [http://en.wikipedia.org/wiki/Thief_(series)]


	[[Category:Formats missing in FFmpeg]]		[[Category:Formats missing in FFmpeg]]
	[[Category:Video Codecs]]		[[Category:Video Codecs]]

Maxpol: /* Wavelet bands */

2009-12-17T15:27:20Z

Wavelet bands

← Older revision		Revision as of 08:27, 17 December 2009
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	The type of the transform used to process a particular band is chosen according to its frequency content. The low frequency image components are the most important components for visual sensitivity. Therefore the transform is selected so that it can process the low frequency components more efficiently than the high frequency ones. For example, the two-dimensional slant transform is used to process the band 0 because it contains the low frequency components in both horizontal and vertical directions. But the band 1 contains low frequency components only in the horizontal direction that's why the one-dimensional slant transform applied to each of the 8 rows in a 8x8 block is used. Similar to it, the band 2 uses the one-dimensional slant transform applied to each of the 8 columns in a 8x8 block. The band 3 contains only high frequency components in both directions therefore no transform is applied to its data. This band will be coded using quantization and entropy coding only.		The type of the transform used to process a particular band is chosen according to its frequency content. The low frequency image components are the most important components for visual sensitivity. Therefore the transform is selected so that it can process the low frequency components more efficiently than the high frequency ones. For example, the two-dimensional slant transform is used to process the band 0 because it contains the low frequency components in both horizontal and vertical directions. But the band 1 contains low frequency components only in the horizontal direction that's why the one-dimensional slant transform applied to each of the 8 rows in a 8x8 block is used. Similar to it, the band 2 uses the one-dimensional slant transform applied to each of the 8 columns in a 8x8 block. The band 3 contains only high frequency components in both directions therefore no transform is applied to its data. This band will be coded using quantization and entropy coding only.

			==== Wavelet recomposition ====

			The following section describes the wavelet recomposition - the last stage of the indeo5 decoder reconstructing an image from a plurality of [[#Wavelet bands\|wavelet bands]]. It receives up to four separate bands (labeled b0-b3) and generates recomposed plane data by performing two-dimensional wavelet synthesis.

	=== Temporal scalability ===		=== Temporal scalability ===

Maxpol: /* GOP header */

2009-12-12T01:34:15Z

GOP header

← Older revision		Revision as of 18:34, 11 December 2009
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	\| align="center" \| variable \|\| <span id="gop_ext">gop_ext</span> \|\| [[#gop_ext_flg\|gop_ext_flg]] == 1 \|\|		\| align="center" \| variable \|\| <span id="gop_ext">gop_ext</span> \|\| [[#gop_ext_flg\|gop_ext_flg]] == 1 \|\|
	do { val = getbits(16);		do { val = getbits(16);
	} while(val &~~0x80~~);		} while(val &0x8000);
	\|\| GOP header extension.		\|\| GOP header extension.
	\|-		\|-