{"id":3733,"date":"2012-03-04T14:38:46","date_gmt":"2012-03-04T22:38:46","guid":{"rendered":"http:\/\/multimedia.cx\/eggs\/?p=3733"},"modified":"2012-03-04T14:40:40","modified_gmt":"2012-03-04T22:40:40","slug":"wma-lossless-and-prores-encoder","status":"publish","type":"post","link":"https:\/\/multimedia.cx\/eggs\/wma-lossless-and-prores-encoder\/","title":{"rendered":"WMA Lossless and ProRes Encoder"},"content":{"rendered":"

The projects (FFmpeg<\/a> \/ Libav<\/a>) just got a WMA lossless<\/a> decoder. For those keeping score, this means that there are open source methods for decoding every single one of Microsoft’s proprietary audio codecs (Windows Media Audio, or WMA): WMA v1, WMA v2, WMA9\/Pro, WMA Voice, and now WMA lossless. Currently, it’s only advertised to decode 16-bit audio (no 24-bit). Also, when I first tried it a few days ago, it didn’t decode the very end of the single sample file I concocted many years ago (luckynight.wma<\/a>). But that might be cleared up by now.<\/p>\n

Some other recent developments in the projects that I wanted to call out: An encoder for the Apple ProRes<\/a> encoder from Kostya<\/a>; XWD (X window dump) image<\/a> decoding and encoding from Paul B. Mahol; a Sun rasterfile<\/a> encoder from Aneesh Dogra.<\/p>\n

And then there’s the new playback system for CDXL files<\/a>, also courtesy of Paul B. Mahol. I wasn’t familiar with this format until I wrote this post, which is surprising, given the format’s vintage. This was a CD-ROM FMV format favored for Amiga computers. Here it is in all its 160x120x10fps glory:<\/p>\n


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That’s the amigaball.cdxl sample available in the repository<\/a>. The sample is 3835910 bytes large and plays for about 24 seconds. This yields a data rate of about 159 kbytes\/second. So, yeah, single-speed CD-ROM FMV.<\/p>\n","protected":false},"excerpt":{"rendered":"

FFmpeg\/Libav can now decode all Microsoft WMA formats; the projects have gained some other curious features as well such as ProRes encoding and a few new image formats<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3733","post","type-post","status-publish","format-standard","hentry","category-general"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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