The extra md_map needs to be used before the generic md_map because
the extra md_map needs to be used before av_metadata_conv while the
generic md_map needs to be used after av_metadata_conv. This allows
handling of things like ID3v2 track fields which get mapped to the
generic track field by av_metadata_conv but actually contain both
track number and the total number of tracks on the disc.
Note: modified from Dustin's original patch.
This is actually needed for everything to work properly, but it only really
started breaking with newer versions of ffmpeg where more demuxers have been
completely ported over to the metadata API.
ffmpeg doesn't convert ID3v2 tag names to generic metadata names, so
add the ID3v2 tag names to the table to pick them up.
This fixes scanning of MP3 files in various cases.
More in this post and its attachment:
<http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2009-September/076213.html>
Thanks to Raivo Hool for bringing up the issue and fix.
media_kind=2 (Movies) indicates a regular video, that is, a video that
isn't a TV Show (media_kind=64).
Also fix up the system playlist for Movies, and that brings us to DB
schema_version 5.
TV-related metadata as found in TV shows bought on the iTunes store, for
instance.
At the time of writing, ffmpeg doesn't support this yet. Until it does,
contact Ace Jones <ace.jones1@yahoo.com> for patches and instructions.
Fall back to the legacy format-specific scanners for WMA, FLAC and Musepack,
as ffmpeg doesn't report metadata for FLAC nor Musepack and has bugs with
some WMA variants.
Use ffmpeg's (starting with SVN 20090301) new metadata API to extract
metadata from virtually all formats supported by ffmpeg. That will allow
to get rid of some dependencies and some open-coded routines that aren't
maintainable.
Julien BLACHE
Kai Elwert
Dustin King
Ace Jones