Playlist metadata is lost

[audetto]

Bug report

I originally opened this bug a year ago https://github.com/MusicPlayerDaemon/MPD/issues/1069 I reopen it now because with the new version in Raspberry Pi OS Bullseye, the behaviour has not changed.

Describe the bug

With a playlist of radio streams, mpd overwrites all the metadata with information from the stream. But it overwrites fields for which the stream provides no values.

The playlist metadata is very useful to name the stream (station, channel), as the info provided from the stream is most of the times unusable.

Expected Behavior

Title should be overwritten, but not the other fields.

Actual Behavior

All fields overwritten (even with empty data).

Version

Music Player Daemon 0.22.6 (0.22.6) Copyright 2003-2007 Warren Dukes warren.dukes@gmail.com Copyright 2008-2018 Max Kellermann max.kellermann@gmail.com This is free software; see the source for copying conditions. There is NO warranty; not even MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Database plugins: simple proxy upnp

Storage plugins: local smbclient udisks nfs curl

Neighbor plugins: smbclient upnp udisks

Decoders plugins: [mad] mp3 mp2 [mpg123] mp3 [vorbis] ogg oga [oggflac] ogg oga [flac] flac [opus] opus ogg oga [sndfile] wav aiff aif au snd paf iff svx sf voc w64 pvf xi htk caf sd2 [audiofile] wav au aiff aif [dsdiff] dff [dsf] dsf [hybrid_dsd] m4a [faad] aac [mpcdec] mpc [wavpack] wv [modplug] 669 amf ams dbm dfm dsm far it med mdl mod mtm mt2 okt s3m stm ult umx xm [mikmod] amf dsm far gdm imf it med mod mtm s3m stm stx ult uni xm [sidplay] sid mus str prg P00 [wildmidi] mid [fluidsynth] mid [adplug] amd d00 hsc laa rad raw sa2 [ffmpeg] 16sv 3g2 3gp 4xm 8svx aa3 aac ac3 adx afc aif aifc aiff al alaw amr anim apc ape asf atrac au aud avi avm2 avs bap bfi c93 cak cin cmv cpk daud dct divx dts dv dvd dxa eac3 film flac flc fli fll flx flv g726 gsm gxf iss m1v m2v m2t m2ts m4a m4b m4v mad mj2 mjpeg mjpg mka mkv mlp mm mmf mov mp+ mp1 mp2 mp3 mp4 mpc mpeg mpg mpga mpp mpu mve mvi mxf nc nsv nut nuv oga ogm ogv ogx oma ogg omg opus psp pva qcp qt r3d ra ram rl2 rm rmvb roq rpl rvc shn smk snd sol son spx str swf tak tgi tgq tgv thp ts tsp tta xa xvid uv uv2 vb vid vob voc vp6 vmd wav webm wma wmv wsaud wsvga wv wve rtp:// rtsp:// rtsps:// [gme] ay gbs gym hes kss nsf nsfe sap spc vgm vgz [pcm]

Filters: libsamplerate soxr

Tag plugins: id3tag

Output plugins: shout null fifo sndio pipe alsa ao oss openal pulse jack httpd recorder

Encoder plugins: null vorbis opus lame wave flac

Archive plugins: [bz2] bz2 [zzip] zip [iso] iso

Input plugins: file io_uring archive alsa tidal qobuz curl ffmpeg smbclient nfs mms cdio_paranoia

Playlist plugins: extm3u m3u pls xspf asx rss soundcloud flac cue embcue

Protocols: file:// alsa:// cdda:// ftp:// ftps:// gopher:// hls+http:// hls+https:// http:// https:// mms:// mmsh:// mmst:// mmsu:// nfs:// qobuz:// rtmp:// rtmps:// rtmpt:// rtmpts:// rtp:// rtsp:// rtsps:// scp:// sftp:// smb:// srtp:// tidal://

Other features: avahi dbus udisks epoll icu inotify ipv6 systemd tcp un

[MaxKellermann]

Your MPD version is still very old and unsupported.

[audetto]

One could at least talk about this being a bug or a feature, and for someone with good knowledge of the code, it will take very little to locate the area. I don't know why Raspi OS always ships a very old version, but since the behaviour has not changed one bit since the last issue, I think it is relevant to keep this open.

[Chris56]

Raspi OS bookworm: still the same (mpd 0.23.12-1) A line like:

EXTINF:-1 tvg-name="100'5 DAS HITRADIO" group-title="Deutschland" radio="true" tvg-logo="https://raw.githubusercontent.com/jnk22/kodinerds-iptv/master/logos/radio/1005dashitradio.png",100'5 DAS H>

does not get interpreted but it just shows "stream" as the name (thats because the following url is https://stream.dashitradio.de/dashitradio/mp3-128/stream.mp3)