Also here is a snippet of my log. In this example the "before" metadata was
the last used to trigger an update to icecast. The "after" metadata was
never used.
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("album","Strength of
Steel")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("genre","Metal")
2011/07/13 19:29:39 [smart_crossfade:4] Before:
("filename","/home/brandon/projects/rails/radio_broadcaster/tmp/tracks/65faa646-a337-11e0-9c2a-080027936572.mp3")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("player_title","Wild Eyes -
Strength of Steel")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("status","playing")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("year","1987")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("source","local_playlist")
2011/07/13 19:29:39 [smart_crossfade:4] Before:
("initial_uri","annotate:player_title=\"Wild Eyes - Strength of
Steel\",crossfade=\"yes\":/home/brandon/projects/rails/radio_broadcaster/tmp/tracks/65faa646-a337-11e0-9c2a-080027936572.mp3")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("crossfade","yes")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("on_air","2011/07/13
19:26:13")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("rid","1")
2011/07/13 19:29:39 [smart_crossfade:4] Before:
("kind","{audio=2;video=0;midi=0}")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("artist","Anvil")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("track","9")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("decoder","MP3")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("temporary","false")
2011/07/13 19:29:39 [smart_crossfade:4] Before: ("title","Wild Eyes -
Strength of Steel")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("album","Deth Red Sabaoth")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("genre","Hard Rock &
Metal")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("comment","Amazon.com Song
ID: 216917006")
2011/07/13 19:29:39 [smart_crossfade:4] After :
("filename","/home/brandon/projects/rails/radio_broadcaster/tmp/tracks/0a9f4382-a338-11e0-9c2a-080027936572.mp3")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("player_title","Ju Ju Bone
- Deth Red Sabaoth")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("status","playing")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("year","2010")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("source","local_playlist")
2011/07/13 19:29:39 [smart_crossfade:4] After :
("initial_uri","annotate:player_title=\"Ju Ju Bone - Deth Red
Sabaoth\",crossfade=\"yes\":/home/brandon/projects/rails/radio_broadcaster/tmp/tracks/0a9f4382-a338-11e0-9c2a-080027936572.mp3")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("crossfade","yes")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("on_air","2011/07/13
19:29:39")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("rid","2")
2011/07/13 19:29:39 [smart_crossfade:4] After :
("kind","{audio=2;video=0;midi=0}")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("artist","Danzig")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("track","7")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("decoder","MP3")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("temporary","false")
2011/07/13 19:29:39 [smart_crossfade:4] After : ("title","Ju Ju Bone - Deth
Red Sabaoth")
2011/07/13 19:29:39 [source:4] Source src_5093 gets up.
2011/07/13 19:29:39 [src_5093:4] Content kind is {audio=2;video=0;midi=0}.
2011/07/13 19:29:39 [source:4] Source fade_out_5092 gets up.
2011/07/13 19:29:39 [fade_out_5092:4] Content kind is
{audio=2;video=0;midi=0}.
2011/07/13 19:29:39 [source:4] Source src_4860_before gets up.
2011/07/13 19:29:39 [src_4860_before:4] Content kind is
{audio=2;video=0;midi=0}.
2011/07/13 19:29:39 [src_4860_before:4] Activations changed:
static=[fade_out_5092:src_5093:src_4860], dynamic=[].
2011/07/13 19:29:39 [fade_out_5092:4] Activations changed:
static=[src_5093:src_4860], dynamic=[].
2011/07/13 19:29:39 [source:4] Source fade_in_5091 gets up.
2011/07/13 19:29:39 [fade_in_5091:4] Content kind is
{audio=2;video=0;midi=0}.
2011/07/13 19:29:39 [source:4] Source src_4860_after gets up.
2011/07/13 19:29:39 [source:4] Source buffer_5054 gets up.
2011/07/13 19:29:39 [buffer_5054:4] Content kind is
{audio=2;video=0;midi=0}.
2011/07/13 19:29:39 [buffer_5054:4] Activations changed:
static=[src_4860_after:fade_in_5091:src_5093:src_4860], dynamic=[].
2011/07/13 19:29:39 [src_4858:4] Activations changed:
static=[src_4860_after:fade_in_5091:src_5093:src_4860,
src_4860_after:sequence_5044:src_4860], dynamic=[src_4860].
2011/07/13 19:29:39 [src_4858:4] Enabling caching mode: two static
activations.
2011/07/13 19:29:39 [src_4860_after:4] Activations changed:
static=[fade_in_5091:src_5093:src_4860], dynamic=[].
2011/07/13 19:29:39 [fade_in_5091:4] Activations changed:
static=[src_5093:src_4860], dynamic=[].
2011/07/13 19:29:39 [src_5093:4] Activations changed: static=[src_4860],
dynamic=[].
2011/07/13 19:29:39 [sequence_5044:4] Activations changed: static=[],
dynamic=[].
2011/07/13 19:29:39 [source:4] Source sequence_5044 gets down.
2011/07/13 19:29:39 [src_4860_after:4] Activations changed: static=[],
dynamic=[].
2011/07/13 19:29:39 [source:4] Source src_4860_after gets down.
2011/07/13 19:29:39 [src_4858:4] Activations changed:
static=[src_4860_after:fade_in_5091:src_5093:src_4860], dynamic=[src_4860].
2011/07/13 19:29:39 [src_4858:4] Disabling caching mode.
2011/07/13 19:29:39 [live_broadcast_url:4] Could not get file: File Not
Found
2011/07/13 19:29:39 [live_broadcast_url:4] Connection failed: Internal http
error.
2011/07/13 19:29:41 [buffer_5054:4] End of track.
2011/07/13 19:29:41 [buffer_5054:4] Buffer emptied, buffering needed.
2011/07/13 19:29:41 [buffer_5054:4] Activations changed: static=[],
dynamic=[].
2011/07/13 19:29:41 [source:4] Source buffer_5054 gets down.
On Wed, Jul 13, 2011 at 7:09 PM, Brandon Casci <[email protected]>wrote:
> I've implemented a custom crossfade based from one of the examples. The
> crossfade works great, but metadata updates to icecast always stop after the
> second track is played. If I restart liquidsoap metadata updates will
> resume, but will stop after the second track is played. Metadata updates
> process as usual when I remove the crossfade code. I'm using a trunk version
> of liquidsoap that's about 2 or three weeks old. Any theories? Here is a
> snippet of the code:
>
>
> def my_crossfade (~start_next=5.,~fade_in=3.,~fade_out=3.,
> ~default=(fun (a,b) -> sequence([a, b])),
> ~high=-15., ~medium=-32., ~margin=4.,
> ~width=2.,~conservative=false,s)
> fade.out = fade.out(type="sin",duration=fade_out)
> fade.in = fade.in(type="sin",duration=fade_in)
> add = fun (a,b) -> add(normalize=false,[b, a])
> log = log(label="smart_crossfade")
>
> def transition(a,b,ma,mb,sa,sb)
>
> list.iter(fun(x)-> log(level=4,"Before: #{x}"),ma)
> list.iter(fun(x)-> log(level=4,"After : #{x}"),mb)
> if ma["crossfade"] == "yes" and mb["crossfade"] == "yes" then
> add(fade.initial(type="sin", sb),fade.final(type="sin", sa))
> else
> log("No transition defined: using default.")
> default(sa, sb)
> end
> end
>
> smart_cross(width=width, duration=start_next,
> conservative=conservative,transition,s)
> end
>
> live_broadcast = input.http(id="live_broadcast_url", buffer = 5.0, "http://
> #{live_server}:#{live_port}#{live_mount}")
> live_broadcast = nrj(live_broadcast)
> local_playlist = playlist(id = "local_playlist", mode = "normal",
> "content.m3u")
> local_playlist =
> request.dynamic(id="local_playlist",{request.create(get_process_output("#{track_script}
> #{channel_id}"))})
> local_playlist = rewrite_metadata(
> [
> ("title", '$(if $(player_title),"$(player_title)","$(title)")'),
> ],
> local_playlist)
>
> local_broadcast = my_crossfade(conservative=true, local_playlist)
>
> radio = fallback(
> id="live_fallback",
> track_sensitive=false,
> transitions = [fade_to_live_source, fade_to_local_source],
> [
> strip_blank(id="live_strip_blank",length=30., live_broadcast),
> local_broadcast]
> )
>
>
--
=========================================
Brandon Casci
Loudcaster
http://loudcaster.com
=========================================
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