On 24/08/2017 16:17, Vangelis forthnet wrote: > On Thu Aug 24 13:12:07 BST 2017, RS wrote: > >> whether I am at risk of losing tags or metadata. > > There is such a risk, but whenever FFmpeg has tagged files as input, > it does its best to preserve (most) of the metadata present in the input > file and carry it over to the output file, taking, of course, into account > what metadata the output container has support for... > >> The reason for my concern is that >> there seems to be a lot of code in get_iplayer to process metadata, >> although I can't pretend to understand what it all does. > > Yes, there's a lot of code, but in a nutshell > what it does is parse online BBC sources > (currently e.g. > http://www.bbc.co.uk/programmes/<pid>.json > http://www.bbc.co.uk/programmes/<pid>/playlist.json ) > to harvest what metadata is needed, > then use it to construct AtomicParsley commands > to tag the downloaded->remuxed .M4A files. > Using --verbose or --debug into your GiP commands > will let you inspect in detail what's being actually done :-) > >> What I still haven't worked out is >> whether there is an equivalent of >> -codec copy for metadata. > > If my details above wrt ffmpeg still leave you in doubt, > then please have a read of > > http://www.ffmpeg.org/ffmpeg-formats.html#Metadata-1 > > This is a manual labour, metadata present in > the input file is first extracted and backed-up, > to be inserted to the output file at a second stage... > But again, since it's GiP audio files we're discussing > (or maybe not?), you can tag the edited .m4a file with > GiP via: > > get_iplayer --type=radio --pid=<pid> --tag-only --tag-podcast-radio > --tag-only-filename="<filename>" > > "<filename>" in this case is THE COMPLETE PATH > to your edited audio file (whereas in normal GiP use > "<filename>"="<dir>\<fileprefix>.EXT", "<dir>" > being your "iPlayer Recordings" directory... > > The tagging command works even after a radio > programme has expired from iPlayer Radio, > because the online sources stay there for good > (tied to the unique pid string!). > > All the best, > Vangelis > > _______________________________________________ > get_iplayer mailing list > [email protected] > http://lists.infradead.org/mailman/listinfo/get_iplayer >
Hi Vangelis, Had to put this all on hold for a couple of years and now having another look at tidying up where I have some downloads that are missing their tagging. I believe from when I forgot to install atomic parsley. Anyhow I remembered and revisited your suggestion and thought I would try and start work. This is what I get:- alastair@install:~> get_iplayer --type=radio --pid=b01r1vt2 --tag-only --tag-podcast-radio --tag-only-filename=/home/alastair/Working/Composer_of_the_Week_-_George_Frideric_Handel_1685-1759_1._Handel_and_his_Italian_Patrons_b01r1vt2_default.m4a get_iplayer v3.22, Copyright (C) 2008-2010 Phil Lewis This program comes with ABSOLUTELY NO WARRANTY; for details use --warranty. This is free software, and you are welcome to redistribute it under certain conditions; use --conditions for details. Episodes: Composer of the Week - George Frideric Handel (1685-1759), Handel and his Italian Patrons, BBC Radio 3, b01r1vt2 INFO: 1 total programmes WARNING: No media streams found for requested programme versions and recording modes. WARNING: The programme may no longer be available - check the iPlayer or Sounds site. WARNING: The programme may only be available in an unsupported format (e.g., Flash) - check the iPlayer or Sounds site. WARNING: If you use a VPN/VPS/Smart DNS/web proxy, it may have been blocked. INFO: Processing radio: 'Composer of the Week: George Frideric Handel (1685-1759) - 01. Handel and his Italian Patrons (b01r1vt2)' INFO: No versions of this programme were selected (available versions: none) WARNING: Cannot tag missing file: /home/alastair/Working/Composer_of_the_Week_-_George_Frideric_Handel_1685-1759_1._Handel_and_his_Italian_Patrons_b01r1vt2_default.m4a alastair@install:~> Now there will be many reasons why this may not work but am I on the right lines and could this ever work or is it from too long ago. I believe my original download was 05/03/2013! Trust you are OK. Regards, Alastair.
signature.asc
Description: OpenPGP digital signature
_______________________________________________ get_iplayer mailing list [email protected] http://lists.infradead.org/mailman/listinfo/get_iplayer
