[FFmpeg-devel] [BUG] Artist and Track Number not converted from flac to mp3

Justin Ruggles justin.ruggles
Fri May 29 06:19:48 CEST 2009

Ramiro Polla wrote:
> Hi,
> On Thu, May 28, 2009 at 10:11 PM, Justin Ruggles
> <justin.ruggles at gmail.com> wrote:
>> Ramiro Polla wrote:
>>> On Thu, May 28, 2009 at 7:18 PM, Patrice Bensoussan
>>> <patrice.bensoussan at free.fr> wrote:
>>>> Hello,
>>>> It seems that the Artist and Track Number info is lost when converting from
>>>> flac to mp3. Sample file uploaded in
>>>> /MPlayer/incoming/MissingTagsWhenConvertingFLAC
>>>> ffmpeg -i TrackAndArtistMissingAferConversionToMP3.flac -map_meta_data 0:0
>>>> file.mp3
>>>> (same issue when converting to m4a). I tried to have a quick look at the
>>>> code, but couldn't find out what the problem is... if anyone can help and
>>>> have some time...
>>> I have this patch in my tree that for some reason hasn't ever been
>>> submitted. Could you test and see if it still works?
>> Thanks.  I didn't know that was required.  Is that documented somewhere?
> I have no idea. I just found them on a bunch of files I wanted to convert...
>> Also, wouldn't the ogg demuxer need to use the same mapping?  If so, it
>> could be put in oggparsevorbis.c/oggdec.h and used in both demuxers.
> It looks like so, but I don't really want to work on this patch (I
> guess that's why I hadn't submitted it), so whoever applies it can
> decide where it fits best.

Well, seeing as how I maintain the FLAC demuxer, I'll pick it up.  Here
is a modified version of Ramiro's patch.

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