sintonia/playout/libretime_playout/liquidsoap/1.4/ls_script.liq

boot_timestamp = interactive.string("boot_timestamp", string_of(gettimeofday()))

web_stream_enabled = ref false
web_stream_id = ref '-1'

show_name = interactive.string("show_name", "")

dynamic_metadata_callback = ref fun (~new_track=false, s) -> begin () end

just_switched = ref false

%include "ls_lib.liq"

sources = ref []
source_id = ref 0

def create_source()
    l = request.equeue(id="s#{!source_id}", length=0.5)

    l = audio_to_stereo(id="queue_src", l)
    l = cue_cut(l)
    l = amplify(1., override="replay_gain", l)

    # the crossfade function controls fade in/out
    l = crossfade(duration=0., smart=true, l)

    l = on_metadata(notify_queue, l)

    sources := list.append([l], !sources)
    server.register(namespace="queues",
                "s#{!source_id}_skip",
                fun (s) -> begin log("queues.s#{!source_id}_skip")
                    clear_queue(l)
                    "Done"
                end)
    source_id := !source_id + 1
end

create_source()
create_source()
create_source()
create_source()

create_source()
create_source()
create_source()
create_source()

queue = add(!sources, normalize=false)
pair = insert_metadata(queue)
dynamic_metadata_callback := fst(pair)
queue = snd(pair)

output.dummy(fallible=true, queue)

http = input.http_restart(id="http")
http = cross_http(http_input_id="http",http)
output.dummy(fallible=true, http)
stream_queue = http_fallback(http_input_id="http", http=http, default=queue)
stream_queue = map_metadata(update=false, append_title, stream_queue)

ignore(output.dummy(stream_queue, fallible=true))

server.register(namespace="web_stream",
                description="Enable webstream output",
                usage='start',
                "output_start",
                fun (s) -> begin log("web_stream.output_start")
                    notify([("schedule_table_id", !web_stream_id)])
                    web_stream_enabled := true "enabled" end)
server.register(namespace="web_stream",
                description="Enable webstream output",
                usage='stop',
                "output_stop",
                fun (s) -> begin log("web_stream.output_stop") web_stream_enabled := false "disabled" end)

server.register(namespace="web_stream",
                description="Set the streams cc_schedule row id",
                usage="id <id>",
                "id",
                fun (s) -> begin log("web_stream.id") set_web_stream_id(s) end)

server.register(namespace="web_stream",
                description="Get the streams cc_schedule row id",
                usage="get_id",
                "get_id",
                fun (s) -> begin log("web_stream.get_id") get_web_stream_id() end)

default = amplify(id="silence_src", 0.00001, noise())

def map_message_offline(m) =
  [("title", message_offline())]
end

default = map_metadata(map_message_offline, default)
ignore(output.dummy(default, fallible=true))

input_main_streaming = ref false
input_show_streaming = ref false
schedule_streaming = ref false

def make_master_dj_available()
    input_main_streaming := true
end

def make_master_dj_unavailable()
    input_main_streaming := false
end

def make_live_dj_available()
    input_show_streaming := true
end

def make_live_dj_unavailable()
    input_show_streaming := false
end

def make_scheduled_play_available()
    schedule_streaming := true
    just_switched := true
end

def make_scheduled_play_unavailable()
    schedule_streaming := false
end

def update_source_status(sourcename, status) =
    gateway("live '#{sourcename}' '#{status}'")
end

def live_dj_connect(header) =
    update_source_status("live_dj", true)
end

def live_dj_disconnect() =
    update_source_status("live_dj", false)
end

def master_dj_connect(header) =
    update_source_status("master_dj", true)
end

def master_dj_disconnect() =
    update_source_status("master_dj", false)
end

# Auth function for live stream
# @Category LiveStream
# @param user     Username to check against LibreTime API
# @param password Password to check against LibreTime API
# @param ~type    Type of password to check, "dj" or "master, default: "master"
def check_auth(user="", password="", ~type="master") =
    log("#{type} user #{user} connected",label="#{type}_source")

    # Check auth based on return value from auth script
    ret = test_process("python3 #{auth_path} --#{type} #{user} #{password}")

    if ret then
        log("#{type} user #{user} authenticated",label="#{type}_source")
    else
        log("#{type} user #{user} auth failed",label="#{type}_source",level=2)
    end

    ret
end

# Check master source auth
# @Category LiveStream
# @param user     Username to check against LibreTime API
# @param password Password to check against LibreTime API
def check_master_dj_client(user, password) =
    check_auth(user, password)
end

# Check dj/show source auth
# @Category LiveStream
# @param user     Username to check against LibreTime API
# @param password Password to check against LibreTime API
def check_dj_client(user, password) =
    check_auth(user, password, type="dj")
end

s = switch(id="schedule_noise_switch",
            track_sensitive=false,
            transitions=[transition_default, transition],
            [({!schedule_streaming}, stream_queue), ({true}, default)]
    )

s = if input_show_port != 0 and input_show_mount != "" then
    dj_live =
        audio_to_stereo(
            input.harbor(id="live_dj_harbor",
                input_show_mount,
                port=input_show_port,
                auth=check_dj_client,
                max=40.,
                on_connect=live_dj_connect,
                on_disconnect=live_dj_disconnect))

    ignore(output.dummy(dj_live, fallible=true))

    switch(id="show_schedule_noise_switch",
            track_sensitive=false,
            transitions=[transition, transition],
            [({!input_show_streaming}, dj_live), ({true}, s)]
        )
else
    s
end

s = if input_main_port != 0 and input_main_mount != "" then
    master_dj =
        audio_to_stereo(
            input.harbor(id="master_harbor",
                input_main_mount,
                port=input_main_port,
                auth=check_master_dj_client,
                max=40.,
                on_connect=master_dj_connect,
                on_disconnect=master_dj_disconnect))

    ignore(output.dummy(master_dj, fallible=true))

    switch(id="master_show_schedule_noise_switch",
            track_sensitive=false,
            transitions=[transition, transition],
            [({!input_main_streaming}, master_dj), ({true}, s)]
        )
else
    s
end

server.register(namespace="streams",
    description="Stop Master DJ source.",
    usage="master_dj_stop",
    "master_dj_stop",
    fun (s) -> begin log("streams.master_dj_stop") make_master_dj_unavailable() "Done." end)
server.register(namespace="streams",
    description="Start Master DJ source.",
    usage="master_dj_start",
    "master_dj_start",
    fun (s) -> begin log("streams.master_dj_start") make_master_dj_available() "Done." end)
server.register(namespace="streams",
    description="Stop Live DJ source.",
    usage="live_dj_stop",
    "live_dj_stop",
    fun (s) -> begin log("streams.live_dj_stop") make_live_dj_unavailable() "Done." end)
server.register(namespace="streams",
    description="Start Live DJ source.",
    usage="live_dj_start",
    "live_dj_start",
    fun (s) -> begin log("streams.live_dj_start") make_live_dj_available() "Done." end)
server.register(namespace="streams",
    description="Stop Scheduled Play source.",
    usage="scheduled_play_stop",
    "scheduled_play_stop",
    fun (s) -> begin log("streams.scheduled_play_stop") make_scheduled_play_unavailable() "Done." end)
server.register(namespace="streams",
    description="Start Scheduled Play source.",
    usage="scheduled_play_start",
    "scheduled_play_start",
    fun (s) -> begin log("streams.scheduled_play_start") make_scheduled_play_available() "Done." end)

if output_sound_device then
    success = ref false

    log(output_sound_device_type)

    %ifdef output.alsa
	if output_sound_device_type == "ALSA" then
		ignore(output.alsa(s))
        success := true
	end
	%endif

	%ifdef output.ao
	if output_sound_device_type == "AO" then
		ignore(output.ao(s))
        success := true
	end
	%endif

	%ifdef output.oss
	if output_sound_device_type == "OSS" then
        ignore(output.oss(s))
        success := true
	end
	%endif

	%ifdef output.portaudio
	if output_sound_device_type == "Portaudio" then
        ignore(output.portaudio(s))
        success := true
	end
	%endif

	%ifdef output.pulseaudio
	if output_sound_device_type == "Pulseaudio" then
        ignore(output.pulseaudio(s))
        success := true
	end
	%endif

    if (!success == false) then
        ignore(output.prefered(s))
	end

end

if s1_enable == true then
    output_to(s1_output, s1_type, s1_bitrate, s1_host, s1_port, s1_pass,
                s1_mount, s1_url, s1_description, s1_genre, s1_user, s, "1",
                s1_name, s1_channels)
end

if s2_enable == true then
    output_to(s2_output, s2_type, s2_bitrate, s2_host, s2_port, s2_pass,
                s2_mount, s2_url, s2_description, s2_genre, s2_user, s, "2",
                s2_name, s2_channels)

end

if s3_enable == true then
    output_to(s3_output, s3_type, s3_bitrate, s3_host, s3_port, s3_pass,
                s3_mount, s3_url, s3_description, s3_genre, s3_user, s, "3",
                s3_name, s3_channels)
end

if s4_enable == true then
    log("Stream 4 Enabled")
    output_to(s4_output, s4_type, s4_bitrate, s4_host, s4_port, s4_pass,
                s4_mount, s4_url, s4_name, s4_genre, s4_user, s, "4",
                s4_description, s4_channels)
end


gateway("started")