Broken VfW compatibility mode for MKV files in VdubMod ? Or DShow parser problem
Christian HJ Wiesner <[email protected]>
| Newsgroups | gmane.comp.multimedia.matroska.user,gmane.comp.multimedia.matroska.devel,gmane.comp.video.vdubmod.devel |
|---|---|
| Message-ID | <[email protected]> |
Hi, after the negative tests with WMV9 VCM by some users and me, i checked another important VfW codec, being HuffYuv. It doesnt work also :( ... I assume something in the current implementation of our VfW compatibility mode isnt working. Toff has found that, when comparing the codec private data ( BITMAPINFOHEADER + ? ) from a WMV9 AVI and a WMV9 MKV file, the size of the private data differes significantly, as for AVI it was 125 bytes as opposed to 80 bytes from the MKV. He could successfully play WMV9 VCM from matroska when feeding the WMV9 decoder filter ( AVIdecompressor + VCM decoder ) with the 135 bytes from the AVI instaed of using the KaxCodecPrivateData from the MKV trackheader ( dont ask me how he did it ;) .. ). We either have a problem with - VirtualdubMod, rading/writing the codec private data incorrectly - the parser filter, reading and passing the content of the element incorrectly Christian http://www.matroska.org