https://wiki.multimedia.cx/index.php?action=history&feed=atom&title=Cydonia_Paco 2026-06-21T08:43:37Z Revision history for this page on the wiki MediaWiki 1.39.5 https://wiki.multimedia.cx/index.php?title=Cydonia_Paco&diff=15977&oldid=prev 2025-05-14T14:56:40Z

<p>samples</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 07:56, 14 May 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Company: Aneiva Interactive, Inc.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Company: Aneiva Interactive, Inc.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Extension: pac</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Extension: pac</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* Samples: {{DexvertSamples|video/cydoniaPaco}}</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>This is a format used in [https://www.mobygames.com/game/windows/cydonia-mars-the-first-manned-mission Cydonia] game and not related to [[PACo]].</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>This is a format used in [https://www.mobygames.com/game/windows/cydonia-mars-the-first-manned-mission Cydonia] game and not related to [[PACo]].</div></td></tr> </table>

Sembiance https://wiki.multimedia.cx/index.php?title=Cydonia_Paco&diff=15672&oldid=prev 2022-10-24T15:55:31Z

<p>add a sketch description of yet another game codec</p> <p><b>New page</b></p><div>* Company: Aneiva Interactive, Inc.<br /> * Extension: pac<br /> <br /> This is a format used in [https://www.mobygames.com/game/windows/cydonia-mars-the-first-manned-mission Cydonia] game and not related to [[PACo]].<br /> <br /> The file consists of 4-byte magic &lt;code&gt;Paco&lt;/code&gt;, initialisation chunk and one or more data chunks. Chunks starti with single byte for chunk type and 32-bit little-endian chunk size.<br /> <br /> Known chunk types:<br /> * 1 - initialisation chunk<br /> * 2 and 3 - video frame<br /> * 4 - new palette data (may be shorter than 768 in theory)<br /> * 5 - audio data<br /> * 20 - silence (32-bit payload tells silence length)<br /> * 21 - something audio-related<br /> * 30-35 - some frame management opcodes<br /> * 50 - unknown<br /> * 60-61 - related to fading?<br /> <br /> Initialisation chunk should be 7 bytes long:<br /> 16 bits - video width<br /> 16 bits - video height<br /> 16 bits - number of frames<br /> 8 bits - audio present flag<br /> <br /> Video is compressed using LZ77-based scheme for both frame types with small differences in codewords and ways to copy previous frame data (one uses lines, another one uses blocks).<br /> <br /> <br /> [[Category:Game Formats]]<br /> [[Category:Incomplete Video Codecs‏‎]]</div>

Kostya