{"id":9,"date":"2005-01-05T17:52:38","date_gmt":"2005-01-06T00:52:38","guid":{"rendered":"\/?p=9"},"modified":"2006-10-04T21:02:01","modified_gmt":"2006-10-05T04:02:01","slug":"laras-escape","status":"publish","type":"post","link":"https:\/\/multimedia.cx\/eggs\/laras-escape\/","title":{"rendered":"Lara’s Escape"},"content":{"rendered":"

Games published under the Eidos umbrella, most famously the Tomb Raider<\/em> series, are known you use .RPL files for their full motion video (FMV). RPL appears to be a reasonably open container format and the details are in this document<\/a>. The specific video codec used in this format is closed. It is known as “Escape”, internally identified as codec #130. (The audio format is also not entirely clear, but it definitely appears to be an ADPCM variant.)<\/p>\n

<\/p>\n

As I discovered in this multimedia journal entry<\/a>, there are several DLLs distributed with an Eidos game that actually handle the playback. In the case of Legacy of Kain: Soul Reaver<\/em>, the kain2.exe imports functions from winplay.dll, which imports from winstr.dll, which imports from, among others of course, dec130.dll. Since the Escape codec is identified as codec #130, this is promising. Disassembling the binary, however, reveals that the exported functions are very unintuitively named as ExpFn0000() .. ExpFn0009(). <\/p>\n

More intelligence on this matter came in today:<\/p>\n

\nactually, the main frame decoding function locaded in dec130.dll (you’re right about this) and it’s exported under ordinal #202 . Upon calling, it’s second parameter is a pointer to packed frame data from file (which started from bytes 0x30, 0x01, 0x01, etc).\n<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

Games published under the Eidos umbrella, most famously the Tomb Raider series, are known you use .RPL files for their full motion video (FMV). RPL appears to be a reasonably open container format and the details are in this document. The specific video codec used in this format is closed. It is known as “Escape”, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-9","post","type-post","status-publish","format-standard","hentry","category-reverse-engineering"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t