Hi Bruno,
Your script looks good and the logs seem to indicate a clear bug in the
software. However, 1.1.1 is a rather old version. Would you be able to test
it with version 1.3.3? I'm happy to provide instructions on how to update
liquidsoap.
Romain
Le jeu. 6 sept. 2018 à 11:50, Bruno Lima <bruno_nl...@hotmail.com> a écrit :
> Hello, I need to get title and artist metadata from MySQL table and update
> it on stream every 5 seconds.
>
> I wrote a script that did this based on earlier responses here but for
> some reason the "update_meta()" function that should be executed every 5
> seconds is only being execute twice and then stops.
>
> Seems to be a problem somewhere.. Any help is apreciated. The script is as
> follows:
>
> #!/usr/local/bin/liquidsoap
> set("log.stdout",true)
> set("log.file.append",true)
> set("log.level", 4)
> set("log.file.path","/home/radiola/liquidsoap.log")
> set("frame.audio.samplerate",48000)
>
> s = input.jack()
>
> # Create a function to insert metadata
> ms = insert_metadata(s)
> # The function to insert metadata
> imeta = fst(ms)
> # The source with inserted metadata
> s = snd(ms)
>
> # Function that updates metadata
> def update_meta() =
> # Gets title from MySQL table and stores in variable
> new_title = list.hd(
> get_process_lines(
> "mysql my_db -u root -phackme -se \"SELECT CAST(CONVERT(Title USING
> utf8) AS binary) FROM song WHERE id='1'\""
> )
> )
> # Gets artist from MySQL table and stores in variable
> new_artist = list.hd(
> get_process_lines(
> "mysql my_db -u root -phackme -se \"SELECT CAST(CONVERT(Artist USING
> utf8) AS binary) FROM song WHERE id='1'\""
> )
> )
> #A debug message
> print("Insert metadata title = #{new_title}")
> print("Insert metadata artist = #{new_artist}")
> # Insert the metadata
> imeta([("title",new_title),("artist",new_artist)])
> 5.0
> end
>
> # Schedule the insert metadata process every 5.0 seconds
> add_timeout(fast=false,5.0,update_meta)
>
> # MountPoint = st1.opus\group=transmitter
> output.icecast.......
>
> # MountPoint = aovivo.opus
> output.icecast.......
>
> # MountPoint = aovivo.mp3
> output.icecast.......
>
> # MountPoint = stream
> output.icecast.......
>
> # MountPoint = transmitter.mp3
> output.icecast.......
>
>
>
> As you can see I put a debug message to be printed when the update_meta
> function is executed and the message appears only twice when executing the
> script.. The log is as follows:
>
>
> 2018/09/06 13:44:44 >>> LOG START
> 2018/09/06 13:44:44 [protocols.external:3] Found
> "/usr/local/lib/liquidsoap/scm/liquidget".
> 2018/09/06 13:44:44 [main:3] Liquidsoap 1.1.1+scm (git://
> github.com/savonet/liquidsoap.git@ed3e4bc781397c1fee76e4aa3a97dc5e36e237df:20140225:181935
> )
> 2018/09/06 13:44:44 [main:3] Using: pcre=6.2.3 dtools=0.3.1 duppy=0.5.1
> duppy.syntax=0.5.1 cry=0.3.0 mm=0.3.0 xmlplaylist=0.1.3 ogg=0.5.0
> opus=0.1.1 speex=0.2.1 mad=0.4.4 flac=0.1.2 flac.ogg=0.1.2
> dynlink=[distributed with Ocaml] lame=0.3.2 aacplus=0.2.1 voaacenc=0.1.0
> fdkaac=0.2.0 theora=0.3.1 schroedinger=0.1.1 bjack=0.1.4 alsa=0.2.1
> ao=0.2.0 samplerate=0.1.2 taglib=0.3.1 magic=0.7.3 camomile=0.8.3
> faad=0.3.3 portaudio=0.2.0 pulseaudio=0.1.2 ladspa=0.1.4 dssi=0.1.1 lo=0.1.0
> 2018/09/06 13:44:44 [main:2]
> 2018/09/06 13:44:44 [main:2] DISCLAIMER: This version of Liquidsoap has
> been
> 2018/09/06 13:44:44 [main:2] compiled from a snapshot of the development
> code.
> 2018/09/06 13:44:44 [main:2] As such, it should not be used in production
> 2018/09/06 13:44:44 [main:2] unless you know what you are doing!
> 2018/09/06 13:44:44 [main:2]
> 2018/09/06 13:44:44 [main:2] We are, however, very interested in any
> feedback
> 2018/09/06 13:44:44 [main:2] about our development code and committed to
> fix
> 2018/09/06 13:44:44 [main:2] issues as soon as possible.
> 2018/09/06 13:44:44 [main:2]
> 2018/09/06 13:44:44 [main:2] If you are interested in collaborating to
> 2018/09/06 13:44:44 [main:2] the development of Liquidsoap, feel free to
> 2018/09/06 13:44:44 [main:2] drop us a mail at <savonet-d...@lists.sf.net>
> 2018/09/06 13:44:44 [main:2] or to join the #savonet IRC channel on
> Freenode.
> 2018/09/06 13:44:44 [main:2]
> 2018/09/06 13:44:44 [main:2] Please send any bug report or feature request
> 2018/09/06 13:44:44 [main:2] at <
> https://github.com/savonet/liquidsoap/issues>.
> 2018/09/06 13:44:44 [main:2]
> 2018/09/06 13:44:44 [main:2] We hope you enjoy this snapshot build of
> Liquidsoap!
> 2018/09/06 13:44:44 [main:2]
> 2018/09/06 13:44:44 [frame:3] Using 48000Hz audio, 25Hz video, 48000Hz
> master.
> 2018/09/06 13:44:44 [frame:3] Frame size must be a multiple of 1920 ticks
> = 1920 audio samples = 1 video samples.
> 2018/09/06 13:44:44 [frame:3] Targetting 'frame.duration': 0.04s = 1920
> audio samples = 1920 ticks.
> 2018/09/06 13:44:44 [frame:3] Frames last 0.04s = 1920 audio samples = 1
> video samples = 1920 ticks.
> 2018/09/06 13:44:44 [video.converter:4] Couldn't find preferred video
> converter: gavl.
> 2018/09/06 13:44:44 [audio.converter:4] Using preferred samplerate
> converter: libsamplerate.
> 2018/09/06 13:44:44 [threads:3] Created thread "generic queue #1".
> 2018/09/06 13:44:44 [threads:3] Thread "generic queue #1" terminated.
> 2018/09/06 13:44:44 [threads:3] Created thread "generic queue #2".
> 2018/09/06 13:44:44 [threads:3] Thread "generic queue #2" terminated.
> 2018/09/06 13:44:44 [clock:4] Currently 1 clocks allocated.
> 2018/09/06 13:44:44 [clock.wallclock_bjack:4] Starting 3 sources...
> 2018/09/06 13:44:44 [source:4] Source input.jack_5617 gets up.
> 2018/09/06 13:44:44 [input.jack_5617:4] Content kind is
> {audio=2;video=0;midi=0}.
> 2018/09/06 13:44:44 [clock.wallclock_bjack:4] Delegating clock to active
> sources.
> 2018/09/06 13:44:44 [input.jack_5617:4] Activations changed:
> static=[input.jack_5617], dynamic=[].
> 2018/09/06 13:44:44 [input.jack_5617:4] Enabling caching mode: active
> source.
> 2018/09/06 13:44:44 [source:4] Source output.icecast_5630 gets up.
> 2018/09/06 13:44:44 [source:4] Source insert_metadata_5622 gets up.
> 2018/09/06 13:44:44 [insert_metadata_5622:4] Content kind is
> {audio=2;video=0;midi=0}.
> 2018/09/06 13:44:44 [input.jack_5617:4] Activations changed:
> static=[insert_metadata_5622:aovivo(dot)opus:aovivo(dot)opus,
> input.jack_5617], dynamic=[].
> 2018/09/06 13:44:44 [insert_metadata_5622:4] Activations changed:
> static=[aovivo(dot)opus:aovivo(dot)opus], dynamic=[].
> 2018/09/06 13:44:44 [aovivo(dot)opus:4] Activations changed:
> static=[aovivo(dot)opus], dynamic=[].
> 2018/09/06 13:44:44 [aovivo(dot)opus:4] Enabling caching mode: active
> source.
> 2018/09/06 13:44:44 [source:4] Source output.icecast_5631 gets up.
> 2018/09/06 13:44:44 [insert_metadata_5622:4] Activations changed:
> static=[aovivo(dot)mp3:aovivo(dot)mp3, aovivo(dot)opus:aovivo(dot)opus],
> dynamic=[].
> 2018/09/06 13:44:44 [insert_metadata_5622:4] Enabling caching mode: two
> static activations.
> 2018/09/06 13:44:44 [aovivo(dot)mp3:4] Activations changed:
> static=[aovivo(dot)mp3], dynamic=[].
> 2018/09/06 13:44:44 [aovivo(dot)mp3:4] Enabling caching mode: active
> source.
> 2018/09/06 13:44:44 [threads:3] Created thread "input.jack_5617" (1 total).
> 2018/09/06 13:44:44 [aovivo(dot)opus:3] Connecting mount aovivo.opus for
> source@localhost...
> 2018/09/06 13:44:44 [aovivo(dot)opus:3] Connection setup was successful.
> 2018/09/06 13:44:44 [aovivo(dot)mp3:3] Connecting mount aovivo.mp3 for
> source@localhost...
> 2018/09/06 13:44:44 [aovivo(dot)mp3:3] Connection setup was successful.
> 2018/09/06 13:44:44 [threads:3] Created thread "wallclock_bjack" (2 total).
> 2018/09/06 13:44:44 [clock:4] Main phase starts.
> 2018/09/06 13:44:44 [clock.wallclock_bjack:3] Streaming loop starts,
> synchronized by active sources.
> 2018/09/06 13:44:44 [ogg.muxer:4] aovivo(dot)opus: Starting all streams
> Insert metadata title = xxxxxx
> Insert metadata artist = yyyyyy
> Thread 1 killed on uncaught exception Invalid_argument("equal: abstract
> value")
> Called from file "list.ml", line 175, characters 17-20
> Called from file "thread.ml", line 39, characters 8-14
> 2018/09/06 13:44:49 [ogg.muxer:4] aovivo(dot)opus: Setting end of track
> 3108b46f.
> 2018/09/06 13:44:49 [ogg.muxer:4] aovivo(dot)opus: Every ogg logical
> tracks have ended: setting end of stream.
> 2018/09/06 13:44:49 [ogg.muxer:4] aovivo(dot)opus: Starting new
> sequentialized ogg stream.
> 2018/09/06 13:44:49 [ogg.muxer:4] aovivo(dot)opus: Starting all streams
> Insert metadata title = xxxxxx
> Insert metadata artist = yyyyyy
> 2018/09/06 13:44:54 [ogg.muxer:4] aovivo(dot)opus: Setting end of track
> 36375d58.
> 2018/09/06 13:44:54 [ogg.muxer:4] aovivo(dot)opus: Every ogg logical
> tracks have ended: setting end of stream.
> 2018/09/06 13:44:54 [ogg.muxer:4] aovivo(dot)opus: Starting new
> sequentialized ogg stream.
> 2018/09/06 13:44:54 [ogg.muxer:4] aovivo(dot)opus: Starting all streams
>
> Then nothing else is printed to log and stream continues to play normally
> but the update_meta function never gets executed again
>
>
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