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

Justin Ruggles justin.ruggles
Sun Jun 14 00:46:42 CEST 2009

Aurelien Jacobs wrote:
> On Sat, Jun 13, 2009 at 09:45:46PM +0100, Patrice Bensoussan wrote:
>> On 30 May 2009, at 00:14, Aurelien Jacobs wrote:
>>> On Fri, May 29, 2009 at 05:01:11PM -0400, Justin Ruggles wrote:
>>>> Aurelien Jacobs wrote:
>>>>> On Fri, May 29, 2009 at 12:19:48AM -0400, Justin Ruggles wrote:
>>>>>> 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.
>>>>> metadata_conv should also be set for ogg and flac muxers.
>>>>> Except that, patch is OK.
>>>> We don't have a vorbiscomment writer.  Should the metadata_conv  
>>>> stuff be
>>>> added to the muxers anyway?
>>> Hum... Then it's not really useful in muxers right now. On the other  
>>> hand,
>>> it won't do any harm, and it may incite someone (you ? ;-) to  
>>> implement
>>> the vorbiscomment writer...
>>> So, do whatever you prefer. It's not important right now...
>> Hi Aurel, have you had any chance to look at  this? is there any more  
>> changes required before it gets committed?
> I've already approved the patch. Justin can commit it whenever he want.

Sorry for the delay.  Committed.


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