On Sat, Jan 27, 2007 at 02:01:00AM +0100, Michael Niedermayer wrote: > Hi > > On Wed, Jan 24, 2007 at 07:45:24PM +0100, Thomas Parmegiani wrote: > > Hi all! > > > > I downloaded some WMV HD files on : > > > > http://www.microsoft.com/windows/windowsmedia/musicandvideo/hdvideo/contents > > howcase.aspx > > > > I wanted to convert it to MPEG2 without audio (Audio is WMAPro which is not > > currently supported by ffmpeg). > > For 720p files, converted MPEG2 files preserve aspect ratio (16/9). > > But for 1080p files (which have a resolution of 1440 x 1080), converted > > aspect ratio is 4/3. > > > > The same problem appears if I try to use VLC to play WMV file > > > > Problem seen with files : > > > > Amazing caves : > > http://download.microsoft.com/download/0/9/d/09d051c4-decc-4d39-9c57-f520187 > > 213a1/Amazing_Caves_1080.exe > > > > Coral Reef : > > http://download.microsoft.com/download/a/9/3/a9327df4-aeb5-46de-b438-d0f60da > > 6fb54/Coral_Reef_Adventure_1080.exe > > > > And I think with all others 1440 x 1080 files... > > i guess the problem is in vc1.c, it doesnt export the aspect ratio ... I will commit patch for exporting aspect ratio but it won't solve this problem. As standard says (note in Appendix I chapter 4.2): "When sample aspect ratio information is not present (i.e. ASPECT_RATIO_FLAG = 0 or for Simple and Main profile), the sample aspect ratio is undefined and application-dependent". All mentioned samples are coded as WMV3 - i.o.w. VC-1 Main profile, so aspect ratio should be stored in container. BTW, newer MPlayer reads aspect ratio correctly. > kostya? > > [...] > > -- > Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB > > Republics decline into democracies and democracies degenerate into > despotisms. -- Aristotle
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