AAC audio: MP3 transcoding as backup option

[Vangelis forthnet]

>dinkypumpkin wrote:

>For anyone interested, I've made a version of get_iplayer with an option to 
>transcode AAC audio to MP3. I started doing this when flashaudio began 
>disappearing from iPlayer, and now I've piggybacked it on Nick Ludlam's 
>changes for AAC->M4A remuxing. It can be found at:

> https://github.com/dinkypumpkin/get_iplayer/tree/aactomp3

>If anyone would like to test it, please have a go.  To force MP3 
>transcoding, add '--aactomp3' to the command line or 'aactomp3 1' to the 
>options file.  YMMV, no guarantees, no refunds.
>I know transcoding is not a great option given that it reduces quality and 
>can crawl on a slow machine, but I think it might be useful to have this 
>alternative built into get_iplayer.  It would be a >backup option for those 
>players that really can't deal with AAC or M4A, and since it would be a 
>positive user choice it wouldn't interfere with the default behaviour.

Thank you dinkypumpkin for sharing your version :-) I am using get_iplayer 
on Windows Vista Home Premium SP2 x86 & I am facing the problem of getting 
untagged mp3 files from get_iplayer. I have searched the net laboriously to 
find a Windows 32bit static executable compiled from sources for id3v2 CLI 
(http://id3v2.sourceforge.net/), but so far no luck.
I haven't got the skills & means to compile it myself :-(. So even when the 
flashaudio mode was available, I was getting untagged mp3 files for radio 
shows.
 When using the official 2.79 release, I still get untagged .aac files for 
the flashaacstd radiomode, even though I have AtomicParsley installed (and 
inside my options file).
Now, when I use Nick's most recent fork, I happily end up with a TAGGED .m4a 
file, which, when transcoded at a second stage -manually- to mp3 at 128kbpsCBR 
with ffmpeg (or
Real Player SP's Converter 1.1.1), retains almost all metadata, i.e. it 
yields a tagged .mp3 file!
As I understand it, your modified script uses this route:

no --aactomp3 option: flv [demuxed-> ] aac [remuxed->] m4a (tagged with 
AtomicParsley)
--aactomp3 option: flv [demuxed-> ] aac [transcoded->] mp3 (untagged for me, 
tagged with id3v2 when available)

Can you please, for the benefit of Windows users, modify your script and 
create e.g. an --m4atomp3 option so that the transcoding occurs after the 
creation of the m4a file:
--m4atomp3  option: flv [demuxed-> ] aac [remuxed->] m4a (tagged with 
AtomicParsley) [transcoded->] mp3 (tag intact)

Most kind regards, Vangelis (from Greece)