On Sun, Jan 22, 2012 at 1:48 PM, Dan Dennedy <d...@dennedy.org> wrote: > On Sun, Jan 22, 2012 at 1:36 PM, Brian Matherly <pez4br...@yahoo.com> wrote: >> JB, >> >> >> >>> Creating xml files from the avformat producer is currently broken with >>> FFmpeg's recent git. The problem comes from avformat's >>> "handler_name" >>> metadata, whose value contains invalid characters. >>> >>> The problem only appears when creating xml files, not when outputting to >>> stdout. >>> >>> For example: >>> >>> melt test.mov -consumer xml >> >> You might have to provide your "test.mov" file. I tried to recreate the >> problem with some of my media files, but none of them have the >> "handler_name" metadata. And if I could find one with "handler_name", I >> don't know that it would necessarily have an invalid character. I don't know >> if Dan has a file lying around that recreates the problem. I guess you could >> wait for him to check before you upload something. >> >> I'm guessing that the best solution might be to fix the xml producer to >> handle the xml with the invalid character. In that case, we might be able to >> make some progress if you provide your "broken" XML file. >> > > I have some files that reproduce the problem. I have a flagged email > to followup on a bug report related to xml char encoding. Currently, > the xml consumer assumes the string data you provide it is already > UTF-8 encoded, but some people are providing, for example, KOI8 file > names in Russian locales. I can get the environment's locale info to > determine that. Now, I need to figure out what the character encoding > rules or API are for libav and its version history.
OK, av_dict (and its predecessor av_metadata from avformat.h) has neither rules or API for character encoding. Demuxers quite often simply pass up whatever appears in the file. And the offending character in this example is a 0x0b vertical tab. So, I think we need some string filter function. I am looking around for a good practice regarding string filtering. Then, the next question is whether to filter the output of av_dict or filter the input to xmlNewTextChild() and xmlNewProp(). -- +-DRD-+ ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
