Workaround for broken(?) m4a files from ffmpeg, was Re: [PATCH] Output AAC as M4A for iTunes with metadata tags

Simon Nash get_iplayer at cjnash.com
Sun Apr 10 02:31:08 EDT 2011


richard wrote:
> On Sat Apr 9 10:08 Simon Nash wrote:
> 
>> There has been a recent change to ffmpeg to use the 4-byte length
>> format(see 
>> http://ffmpeg.org/pipermail/ffmpeg-cvslog/2011-March/035858.html).
>> This is included in the 0.6.90-rc0 release of ffpmeg, according to the
>> changelog (http://ffmpeg.org/releases/ffmpeg-0.6.90-rc0.changelog).
>> So files produced using this release of ffmpeg should work OK in the
>> Marantz CD player (I haven't tried this).
> 
> Using that release of ffmpeg, files do not work in the Marantz player. I
> have tried it. It was referred to earlier:
> 
> http://lists.infradead.org/pipermail/get_iplayer/2011-March/001194.html
> 
Thanks for the pointer; I missed that part of the discussion.  I think
there must be some other issue in that version of ffmpeg that's causing
problems with the Marantz.  I'll try some experiments using a recent
version of ffmpeg with my Linn DS and report back.

> I am now using a later version of ffmpeg: 
> 
> FFmpeg version git-N-28888-g6f73d5e, Copyright (c) 2000-2011 the FFmpeg
> developers built on Apr  5 2011 16:33:41 with gcc 4.2.4 (Ubuntu
> 4.2.4-1ubuntu4)
>  
> and have qt-faststart installed.
> 
> I cannot play m4a files downloaded with get_iplayer without using Jon's
> script. 
> 
> @ Simon
> I can send you m4a files downloaded today with and without using Jon's
> script if you wish to test further.
> 
Thanks.  I would be interested in trying these on my Linn DS.

   Simon
> 
> 
> 
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