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Microsoft Camcorder Video

Suxen drol — Sun, 26 Apr 2026 03:14:59 GMT

+GDICOD97.DRV

← Older revision		Revision as of 20:14, 25 April 2026
(One intermediate revision by the same user not shown)
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	* Company: [[Microsoft]]		* Company: [[Microsoft]]
	* Samples: http://samples.mplayerhq.hu/V-codecs/CGDI/		* Samples: http://samples.mplayerhq.hu/V-codecs/CGDI/
			* Reference decoder: GDICOD97.DRV
	* References: http://support.microsoft.com/support/office/content/office97/camcorder.asp		* References: http://support.microsoft.com/support/office/content/office97/camcorder.asp

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	The internal state keeps a list of GDI objects in an internal array and references them by ID so that the command e.g. for drawing a rectangle sends as parameters rectangle coordinates (left, top, right, bottom) as well as the brush ID that will be selected before rectangle will be drawn. In general the commands that have brush, pen IDs or such send those IDs at the end of the list but before the variable-length part (e.g. points to draw polyline).		The internal state keeps a list of GDI objects in an internal array and references them by ID so that the command e.g. for drawing a rectangle sends as parameters rectangle coordinates (left, top, right, bottom) as well as the brush ID that will be selected before rectangle will be drawn. In general the commands that have brush, pen IDs or such send those IDs at the end of the list but before the variable-length part (e.g. points to draw polyline).

	Known opcodes are:		Known opcodes and command arguments are:
	* <code>0x00</code> -- fill region using region and brush IDs		* <code>0x00</code> -- fill region using region and brush IDs
	* <code>0x01</code> -- draw a border around region; parameters are region/brush IDs plus stroke width/height		* <code>0x01</code> -- draw a border around region; parameters are region/brush IDs plus stroke width/height
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	* <code>0x46</code> -- create new bitmap using data from the stream		* <code>0x46</code> -- create new bitmap using data from the stream
	* <code>0x47</code> -- init some window parameters		* <code>0x47</code> -- init some window parameters
	* <code>0x48</code> -- set default parameters to the drawing system (usually the very first opcode in the first frame)		* <code>0x48</code> -- set default parameters to the drawing system (usually the very first opcode in the first frame) and blt 1280x1024px area with solid colorref brush
			** <code>COLORREF</code>
	* <code>0x49</code> -- clear drawing system from used objects		* <code>0x49</code> -- clear drawing system from used objects
	* <code>0x4A</code> -- set some flag, probably for custom window clipping		* <code>0x4A</code> -- set some flag, probably for custom window clipping
	* <code>0x4B</code> -- delete requested object		* <code>0x4B</code> -- delete requested object

			Data types:
			* <code>COLORREF</code> - 4 bytes - <https://learn.microsoft.com/en-us/windows/win32/gdi/colorref>

	[[Category:Video Codecs]]		[[Category:Video Codecs]]

SCM

Suxen drol — Fri, 24 Apr 2026 22:18:10 GMT

← Older revision		Revision as of 15:18, 24 April 2026
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	[[Category:Container Formats]]		[[Category:Container Formats]]
	[[Category: Formats missing in FFmpeg]]		[[Category: Formats missing in FFmpeg]]
			[[Category:GDI Codecs]]

Microsoft Camcorder Video

Suxen drol — Fri, 24 Apr 2026 22:17:59 GMT

← Older revision		Revision as of 15:17, 24 April 2026
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	[[Category:Screen Capture Video Codecs]]		[[Category:Screen Capture Video Codecs]]
	[[Category:Formats missing in MPlayer]]		[[Category:Formats missing in MPlayer]]
			[[Category:GDI Codecs]]

Windows Metafile

Suxen drol — Fri, 24 Apr 2026 22:17:47 GMT

← Older revision		Revision as of 15:17, 24 April 2026
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	[[Category:Image Formats]]		[[Category:Image Formats]]
			[[Category:GDI Codecs]]

Category:GDI Codecs

Suxen drol — Fri, 24 Apr 2026 22:17:35 GMT

Created page with "Codecs that use the Microsoft Windows Graphics Device Interface (GDI) API to render pixels, shapes, text and textures."

New page

Codecs that use the Microsoft Windows Graphics Device Interface (GDI) API to render pixels, shapes, text and textures.

Factor 5 VID1

Kostya — Thu, 23 Apr 2026 16:29:02 GMT

keep updating

← Older revision		Revision as of 09:29, 23 April 2026
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	* 1 bit -- extended information present		* 1 bit -- extended information present
	* (extended information if present)		* (extended information if present)
	* 1 bit -- ?		* 1 bit -- rounding control
	* 3 bits -- DC quantiser threshold index (<code>intra_dc_vlc_thr</code>)		* 3 bits -- DC quantiser threshold index (<code>intra_dc_vlc_thr</code>)
	* 5 bits -- quantiser		* 5 bits -- quantiser
	* (non-I frames) 3 bits -- ~~something that seems to be used only in B-frames~~		* (non-I frames) 3 bits -- <code>vop_fcode_forward</code>
	* (B-frame only) 3 bits -- ?		* (B-frame only) 3 bits -- <code>vop_fcode_backward</code>
	* 32 bits -- timecode?		* 32 bits -- timecode
	* (frame ~~type 3~~ only) GMC/sprite information		* (S-frame only) GMC/sprite information
	* alignment to byte boundary		* alignment to byte boundary

	Extended information:		Extended information:
	* 1 bit -- ~~another extended bit~~		* 1 bit -- sprite information is present
	* (if ~~another extended bit~~ is ~~set~~) 2 bits -- ?~~, used in sprite information~~		* (if sprite information is present) 2 bits -- number of sprites?
	* (if ~~another extended bit~~ is ~~set~~) 2 bits -- ?		* (if sprite information is present) 2 bits -- sprite MV resolution?
	* 1 bit -- extended quantisation		* 1 bit -- extended quantisation
	* (if extended quantisation) 1 bit -- luma qmat present		* (if extended quantisation) 1 bit -- luma qmat present
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	* (for MB type 1 only) 2 bits -- dquant		* (for MB type 1 only) 2 bits -- dquant
	* 1 or 4 motion vectors (with residual, just like ISO 14496-2)		* 1 or 4 motion vectors (with residual, just like ISO 14496-2)
			* block data

			B-frame macroblock layout:
			* 1 bit -- skip flag (if set, no further information is transmitted for the MB)
			* 1 bit -- coded MB
			* 1-4 bits -- macroblock type (as in table B-4 of ISO 14496-2)
			* (if MB is coded) 6 bits -- CBP
			* (if not direct MB and CBP is non-zero) 1-2 bits -- dbquant
			* (if applicable) forward/backward MV
	* block data		* block data

Factor 5 VID1

Kostya — Wed, 22 Apr 2026 17:12:10 GMT

start to fill some information

New page

* Company: Factor 5
* Extension: vid
* Game: [https://www.mobygames.com/game/9211/enter-the-matrix/ Enter the Matrix (Gamecube version)]
* demuxer code: [https://github.com/librempeg/librempeg/blob/master/libavformat/vid1.c librempeg]

This is a format used in at least one Gamecube game. VID1 format is not merely a container format but a proprietary video codec used in that container as well.

== Container format ==

This a typical chunked format starting with "VID1" header chunk, "HEAD" chunk containing stream headers, and "FRAM" chunks containing both video ("VIDD") and audio ("AUDD") data.

Audio codecs include PCM, variations of IMA ADPCM, or Vorbis.

== Video codec ==

VID1 video codec is a modification of MPEG-4 ASP.

Picture header:
* 16 bits -- ignored (sync marker?)
* 2 bits -- frame type (0 - I, 1 - P, 2 - B, 3 - S)
* 1 bit -- extended information present
* (extended information if present)
* 1 bit -- ?
* 3 bits -- DC quantiser threshold index (<code>intra_dc_vlc_thr</code>)
* 5 bits -- quantiser
* (non-I frames) 3 bits -- something that seems to be used only in B-frames
* (B-frame only) 3 bits -- ?
* 32 bits -- timecode?
* (frame type 3 only) GMC/sprite information
* alignment to byte boundary

Extended information:
* 1 bit -- another extended bit
* (if another extended bit is set) 2 bits -- ?, used in sprite information
* (if another extended bit is set) 2 bits -- ?
* 1 bit -- extended quantisation
* (if extended quantisation) 1 bit -- luma qmat present
* (if extended quantisation and luma qmat present) 8x8 bits -- luma qmat
* (if extended quantisation) 1 bit -- chroma qmat present
* (if extended quantisation and chroma qmat present) 8x8 bits -- chroma qmat
* 1 bit -- ignored
* 1 bit -- ignored

I-frames consists of macroblocks with the following layout:
* standard I MCBPC
* 1 bit -- AC prediction enabled
* I CBPY
* (if dquant is signalled) 2 bits -- dquant
* block data (likely just like ISO 14496-2 defines it)

P-frame macroblock layout:
* 1 bit -- skip flag (if set, no further information is transmitted for the MB)
* standard P MCBPC
* (for I-type MBs decoding is the same as in I-frames)
* 1 bit -- mcsel?
* P CBPY
* (for MB type 1 only) 2 bits -- dquant
* 1 or 4 motion vectors (with residual, just like ISO 14496-2)
* block data

Motion compensation is normal halfpel.

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