StuRa:Server/Streaming

potenzielle Software

Software	freebsd-port:	wikipedia:	Anmerkung
icecast	(freebsd-port:icecast) freebsd-port:icecast2	wikipedia:de:Icecast
FFmpeg	freebsd-port:ffmpeg	wikipedia:de:FFmpeg
VLC	freebsd-port:vlc freebsd-port:vls[1]	wikipedia:de:vlc
DarwinStreamingServer	freebsd-port:DarwinStreamingServer	wikipedia:Darwin Streaming Server	in Anlehnung an Darwin, das Betriebssystem von Apple

ffserver

How do I make it work?
      As a simple test, just run the following two command lines where
      INPUTFILE is some file which you can decode with ffmpeg:

              ffserver -f doc/ffserver.conf &
              ffmpeg -i INPUTFILE http://localhost:8090/feed1.ffm

howto

Siehe auch

• http://askubuntu.com/questions/28496/how-do-i-setup-an-icecast-server-for-broadcasting-audio-in-my-network

Betriebssystem

auf die Schnelle

zur BuFaK WiSo 2015 HTW Dresden

LMDE 2

Anwendungen

icecast

icecast2

sudo cat /etc/icecast2/icecast.xml

<icecast>
    <!-- Location and admin are two arbitrary strings that are e.g. visible
         on the server info page of the icecast web interface
         (server_version.xsl). -->
    <location>UK</location>
    <admin>webmaster@localhost</admin>

    <limits>
        <clients>100</clients>
        <sources>2</sources>
        <queue-size>524288</queue-size>
        <client-timeout>30</client-timeout>
        <header-timeout>15</header-timeout>
        <source-timeout>10</source-timeout>
        <!-- Same as burst-on-connect, but this allows for being more
             specific on how much to burst. Most people won't need to
             change from the default 64k. Applies to all mountpoints. -->
        <burst-size>65535</burst-size>
        <!--
        <max-bandwidth>100M</max-bandwidth>
        -->
    </limits>

    <authentication>
        <!-- Sources log in with username 'source' -->
        <source-password>hackme</source-password>
        <!-- Relays log in username 'relay' -->
        <relay-password>hackme</relay-password>

        <!-- Admin logs in with the username given below -->
        <admin-user>admin</admin-user>
        <admin-password>hackme</admin-password>
    </authentication>

    <!-- Uncomment this if you want directory listings -->
    <!--
    <directory>
        <yp-url-timeout>15</yp-url-timeout>
        <yp-url>http://dir.xiph.org/cgi-bin/yp-cgi</yp-url>
    </directory>
    -->

    <!-- This is the hostname other people will use to connect to your server.
    It affects mainly the urls generated by Icecast for playlists and yp
    listings. -->
    <hostname>localhost</hostname>

    <!-- Set the mountpoint for a shoutcast source to use, the default if not
         specified is /stream but you can change it here if an alternative is
         wanted or an extension is required
    <shoutcast-mount>/live.nsv</shoutcast-mount>
    -->

    <!-- port to use when talking to YP etc -->
    <!--<port>8000</port> -->

    <!-- You may have multiple <listener> elements -->
    <listen-socket>
        <port>8000</port>
        <!-- <bind-address>127.0.0.1</bind-address> -->
        <!-- use <shoutcast-mount> in here to implicitly define port n+1 -->
    </listen-socket>
    <!--
    <listen-socket>
        <port>8001</port>
        <ssl>1</ssl>
    </listen-socket>
    -->

    <!--<master-server>127.0.0.1</master-server>-->
    <!--<master-server-port>8001</master-server-port>-->
    <!--<master-update-interval>120</master-update-interval>-->

    <!--<master-username>hackme</master-username>-->
    <!--<master-password>hackme</master-password>-->

    <!-- issue above authentication for relays in slave setup -->
    <!--<master-relay-auth>1</master-relay-auth>-->

    <!-- setting this makes all relays on-demand unless overridden, this is
         useful for master relays which do not have <relay> definitions here.
         The default is 0 -->
    <!--<relays-on-demand>1</relays-on-demand>-->


    <!-- Request the master server to redirect new listeners to this slave
         the details passed are based on <hostname> and <port> -->
    <!--<master-redirect>1</master-redirect>-->

    <!-- The maximum nuber of slaves that can register for new listener redirection. -->
    <!--<max-redirect-slaves>10</max-redirect-slaves>-->

    <!-- Relays. State connection information, and by default 
         request inline metadata for mp3 streams if available.
         An on-demand relay will only retrieve the stream if
         there are listeners connected -->
    <!--
    <relay>
        <server>127.0.0.1</server>
        <port>8001</port>
        <mount>/example.ogg</mount>
        <local-mount>/different.ogg</local-mount>
        <on-demand>1</on-demand>
        <retry-delay>30</retry-delay>

        <relay-shoutcast-metadata>0</relay-shoutcast-metadata>
    </relay>
    -->
    <!-- Allow multiple master servers to be specified, tries each one in turn.
    <relay>
        <local-mount>/stream.mp3</local-mount>
        <server>a.b.c.d</server>
        <timeout>6</timeout>
        <master>
            <port>8000</port>
            <mount>/a</mount>
        </master>
        <master>
            <port>80</port>
            <mount>/</mount>
        </master>
    </relay>
    -->

    <!-- Only define a <mount> section if you want to use advanced options,
         like alternative usernames or passwords
         With a master/slave setup you need to define a mount in the master
         or else the server will assume that the stream is not to be made
         available to the slave.
    <mount>
        <mount-name>/*.ogg</mount-name>

        <username>othersource</username>
        <password>hackmemore</password>

        <max-listeners>1</max-listeners>
        <max-bandwidth>1000k</max-bandwidth>
        <file-seekable>0</file-seekable>
        <dump-file>/backup/live-%d-%b.ogg</dump-file>
        <burst-size>65536</burst-size>
        <fallback-mount>/example2.ogg</fallback-mount>
        <fallback-override>1</fallback-override>
        <fallback-when-full>1</fallback-when-full>
        <intro>/path/to/stream-intro.ogg</intro>
        <max-listener-duration>3600</max-listener-duration>
        <hidden>1</hidden>
        <authentication type="htpasswd">
                <option name="filename" value="myauth"/>
                <option name="allow_duplicate_users" value="0"/>
        </authentication>
        <on-connect>/home/icecast/bin/stream-start</on-connect>
        <on-disconnect>/home/icecast/bin/stream-stop</on-disconnect>
    </mount>
    -->
    <!-- other auth possibilities include running a command
         to do the auth, mount, user and pass are passed via
         stdin to the program
    <mount>
    ....
        <authentication type="command">
             <option name="listener_add" value="auth_verify"/>
        </authentication>
        
        or 

        for url auth, the add url needs to return a "icecast-auth-user:" http
        header for a user to authenicate. URLs are sent params via POST.

        <authentication type="url">
             <option name="username" value="admin"/>
             <option name="password" value="hackme"/>
             <option name="handlers"        value="3" />
             <option name="stream_auth"    value="http://myauthserver.com/scripts/auth_mount.php"/>
             <option name="mount_add"    value="http://myauthserver.com/scripts/add_mount.php"/>
             <option name="mount_remove" value="http://myauthserver.com/scripts/del_mount.php"/>
             <option name="listener_add"    value="http://myauthserver.com/scripts/add_listener.php"/>
             <option name="listener_remove" value="http://myauthserver.com/scripts/del_listener.php"/>
        </authentication>
    </mount>
    -->

    <fileserve>1</fileserve>

    <paths>
        <!-- basedir is only used if chroot is enabled -->
        <basedir>/usr/share/icecast2</basedir>

        <!-- Note that if <chroot> is turned on below, these paths must both
             be relative to the new root, not the original root -->
        <logdir>/var/log/icecast2</logdir>
        <webroot>/usr/share/icecast2/web</webroot>
        <adminroot>/usr/share/icecast2/admin</adminroot>
        <!-- <pidfile>/usr/share/icecast2/icecast.pid</pidfile> -->
        <!-- <ssl-certificate>/usr/share/icecast2/icecast.pem</ssl-certificate> -->
        <!-- <deny-ip>/path/to/file-with-IPs</deny-ip> -->
        <!-- <allow-ip>/path/to/file-with-IPs</allow-ip> -->
        <!-- <deny-agents>/path/to/file-with-useragents</deny-agents> -->

        <!-- location of mime types files used for file serving -->
        <!-- <mime-types>/etc/mime.types</mime-types> -->

        <!-- Aliases: treat requests for 'source' path as being for 'dest' path
             May be made specific to a port or bound address using the "port"
             and "bind-address" attributes.
          -->
        <!--
        <alias source="/foo" dest="/bar"/>
          -->
        <!-- Aliases: can also be used for simple redirections as well,
             this example will redirect all requests for http://server:port/ to
             the status page
          -->
        <alias source="/" dest="/index.html"/>
    </paths>

    <logging>
        <accesslog>access.log</accesslog>
        <errorlog>error.log</errorlog>
        <!-- <accesslog_ip>0<accesslog_ip> -->
        <!-- <playlistlog>playlist.log</playlistlog> -->
      	<loglevel>3</loglevel> <!-- 4 Debug, 3 Info, 2 Warn, 1 Error -->
      	<logsize>10000</logsize> <!-- Max size of a logfile -->
        <!-- If logarchive is enabled (1), then when logsize is reached
             the logfile will be moved to [error|access|playlist].log.DATESTAMP,
             otherwise it will be moved to [error|access|playlist].log.old.
             Default is non-archive mode (i.e. overwrite)
        -->
        <!-- <logarchive>1</logarchive> -->
    </logging>

    <security>
        <chroot>0</chroot>
        <!--
        <changeowner>
            <user>nobody</user>
            <group>nogroup</group>
        </changeowner>
        -->
    </security>
</icecast>

darkice

cat cat ~/.ice/darkice.cfg

[general]
duration        = 0      # duration in s, 0 forever
bufferSecs      = 1      # buffer, in seconds
reconnect       = yes    # reconnect if disconnected

[input]
device          = default # or `pulse' for Pulseaudio
sampleRate      = 44100   # sample rate 11025, 22050 or 44100
bitsPerSample   = 16      # bits
channel         = 2       # 2 = stereo

[icecast2-0]
bitrateMode     = vbr       # variable bit rate (`cbr' constant, `abr' average)
quality         = 1.0       # 1.0 is best quality
format          = mp3       # format. Choose `vorbis' for OGG Vorbis
bitrate         = 256       # bitrate
server          = localhost # or IP
port            = 8000      # port for IceCast2 access
password        = hackme    # source password to the IceCast2 server
mountPoint      = mystream.mp3  # mount point on the IceCast2 server .mp3 or .ogg
name            = mystream

Sonstiges

Mikrofon auf Lautsprecher

Das kann auch der Ausgang für Kopfhörer sein.

Modul loopback mit PulseAudio erstellen

pactl load-module module-loopback latency_msec=1

letzes gesetzes Modul loopback mit PulseAudio wieder entfernen

pactl unload-module $(pactl list short modules | awk '$2 =="module-loopback" { print $1 }' | tail -n 1)

aus einem Hörsaal

Es gibt verschiedene Wege.

Wie gewohnt, kann WLAN verwendet werden. Bei der Bereitstellung von Streaming sollte wohl aber die "festest" mögliche Anbindung genutzt werden, wobei eigentlich LAN zu bevorzugen wäre. Bei WLAN an unserer Hochschule sollte eduroam verwendet werden. VPN/WEB fällt natürlich schon allein wegen der Begrenzung zur Notwendigkeit der erneuten Anmeldung nach einer bestimmten Dauer heraus.

Wenn LAN genutzt werden kann, was zu bevorzugen ist, muss wohl in den Hörsälen das sogenannte Hörsaalnetz genutzt. Um eine Verbindung zu allen anderen Rechner und dem Internet herstellen zu können, muss VPN für das Hörsaalnetz verwendet werden.

VPN für das Hörsaalnetz verwenden

eigentlich siehe VPN

Installieren von vpnc

sudo apt-get install vpnc

sudo apt-get install network-manager-vpnc

http://www.rz.htw-dresden.de/vpn/vpnsoft/profile/HTW_Hoersaalnetz.pcf

Datei zur Konfiguration von VPN pcf zu einer Datei zur Konfiguration (einer anderen Art) von VPN machen

sudo pcf2vpnc ./HTW_Hoersaalnetz.pcf ./HTW_Hoersaalnetz.conf

Zugangsdaten in die Datei zur Konfiguration eintragen

sudo nano ./HTW_Hoersaalnetz.conf

Siehe auch

• Konferenz#Art der Kommunikation
  • Audiokonferenz
  • Videokonferenz