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.
Older versions of ffmpeg did not support raw FLAC streams properly and needed
to be fed the raw stream manually; looks like it's been fixed in ffmpeg 0.5.
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.
It is now clear that multi-library support will not happen, so remove whatever
provisions were in the code for that.
It comes with a small change to the configuration file, too.
With this, DB schema version went to 9.
Transcoded (decoded) files will now always come out in signed, little endian,
16bit, 44100 Hz, stereo format regardless of the format of the input file.
This in effect fixes transcoding (and playback on some devices) for files that
do not match this format.
There's probably a discussion to be had regarding handling of 48 kHz and 96 kHz
content, though, as downsampling to 44.1 kHz to have the client or final output
device upsample again is clearly not an optimal solution.
Add the setup_fail_codec label and jump to it if an error occurs once the
codec has been opened. In the raw input codepath, don't use this label until
the file is properly opened, as it also closes the fd and frees the raw
buffer.
This also fixes a file descriptor leak in the case where an error happened
after the file was opened in the raw input codepath.
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.
Julien BLACHE
Dustin King