[FFmpeg-user] .m4a metadata

[Joao Bonina]

>________________________________
> From: Joao Bonina <bonina_2001 at yahoo.com>
>To: FFmpeg user questions <ffmpeg-user at ffmpeg.org> 
>Sent: Thursday, 11 October 2012, 18:19
>Subject: Re: [FFmpeg-user] .m4a metadata
> 
>>________________________________
>> From: Lou <lou at lrcd.com>
>>To: ffmpeg-user at ffmpeg.org 
>>Sent: Thursday, 11 October 2012, 18:10
>>Subject: Re: [FFmpeg-user] .m4a metadata
>> 
>>On Thu, 11 Oct 2012 05:23:28 -0700 (PDT)
>>Joao Bonina <bonina_2001 at yahoo.com> wrote:
>>
>>> Hi,
>>> 
>>> I'm using ffmpeg on Linux as a decoder for .m4a files. They 
>>> play fine, but metadata doesn't seem to be read. It only reads the 
>>> creation_time data.
>>> 
>>> Can anyone help, please?
>>> 
>>> ffprobe version 0.11.2 Copyright (c) 2007-2012 the FFmpeg developers
>>>   built on Oct 10 2012 18:26:07 with gcc 4.7.1
>>>  
>>>  configuration: --enable-libmp3lame --enable-libtheora --enable-libx264 
>>> --disable-libgsm --enable-postproc --disable-libxvid --enable-libfaac 
>>> --enable-pthreads --enable-libvorbis --enable-gpl --disable-x11grab 
>>> --enable-nonfree
>>>   libavutil      51. 54.100 / 51. 54.100
>>>   libavcodec     54. 23.100 / 54. 23.100
>>>   libavformat    54.  6.100 / 54.  6.100
>>>   libavdevice    54.  0.100 / 54.  0.100
>>>   libavfilter     2. 77.100 /  2. 77.100
>>>   libswscale      2.  1.100 /  2.  1.100
>>>   libswresample   0. 15.100 /  0. 15.100
>>>   libpostproc    52.  0.100 / 52.  0.100
>>> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Portugal.m4a':
>>>   Metadata:
>>>     major_brand     : M4A
>>>     minor_version   : 0
>>>     compatible_brands: mp42isomM4A
>>>     creation_time   : 2012-09-29 15:28:41
>>>   Duration: 00:01:28.80, start: 0.000000, bitrate: 608 kb/s
>>>     Stream #0:0(und): Audio: alac (alac / 0x63616C61), 44100 Hz, 2 channels, s16, 608 kb/s
>>>     Metadata:
>>>       creation_time   : 2012-09-29 15:28:41
>>> [FORMAT]
>>> filename=Portugal.m4a
>>> nb_streams=1
>>> format_name=mov,mp4,m4a,3gp,3g2,mj2
>>> format_long_name=QuickTime/MPEG-4/Motion JPEG 2000 format
>>> start_time=0.000000
>>> duration=88.800000
>>> size=6756165
>>> bit_rate=608663
>>> TAG:major_brand=M4A
>>> TAG:minor_version=0
>>> TAG:compatible_brands=mp42isomM4A
>>> TAG:creation_time=2012-09-29 15:28:41
>>> [/FORMAT]
>>
>>What metadata are you expecting? Did you use ffmpeg to add the
>>metadata? If yes, also include the actual command(s).
>
>Metadata wasn't added with ffmeg. 
>
>mp4Info shows the following, and was expecting also this from ffmpeg:
>mp4info version 2.0.0
>Portugal.m4a:
>ReadChildAtoms: "Portugal.m4a": In atom meta missing child atom hdlr
>Track   Type    Info
>1       audio   alac, 88.800 secs, 608 kbps, 44100 Hz
>ReadChildAtoms: "Portugal.m4a": In atom meta missing child atom hdlr
> Name: Sonhei que estava em Portugal
> Artist: Cristina Branco
> Album: Ulisses
> Track: 1 of 0
> Genre: Fado
>



So, am I seeing this right?