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| author |   Anonymous Contributor <> | 2010-07-29 15:27:36 +0200 |
|---|---|---|
| committer | Anonymous Contributor <> | 2010-07-29 15:27:36 +0200 |
| commit | fa49840f62cf7387eebcdd7717d3be5605fdc18d (patch) | |
| tree | cb3240f202c24bea823c765feb8c28c3c8e1c6c0 | |
| parent | Many updates (diff) | |
| download | Airtunes2-fa49840f62cf7387eebcdd7717d3be5605fdc18d.tar.xz Airtunes2-fa49840f62cf7387eebcdd7717d3be5605fdc18d.zip | |
Various changes
| -rw-r--r-- | airtunes2.rst | 48 |
1 files changed, 43 insertions, 5 deletions
diff --git a/airtunes2.rst b/airtunes2.rst index c06db62..1266194 100644 --- a/airtunes2.rst +++ b/airtunes2.rst @@ -19,7 +19,7 @@ Credits * `Rogue Amoeba Software, LLC <http://www.rogueamoeba.com/>`_ -Streaming audio to an AirTunes 2 compatible device +Streaming audio to an AirTunes 2 compatible server -------------------------------------------------- If encryption is necessary, a random key and IV (initialization vector) for AES @@ -29,10 +29,41 @@ Every stream has a timestamp (uint64; initially set to ``INITIAL_TIMESTAMP``, see Constants_) and sequence number (int16; initially set to 0) attached to it. Both are updated when sending audio packets. -Up to ``PACKET_BACKLOG`` audio packets should be kept around to resend them if -necessary. After sending a audio packet, the sender should check if a sync -packet should also be sent (basically every ``TIMESYNC_INTERVAL`` frames and -just after connecting). +There are ``TIMESTAMPS_PER_SECOND`` timestamp ticks per second (equivalent +to the number of frames per second). + +Up to ``PACKET_BACKLOG`` audio packets should be kept around after encoding and +encryption to resend if necessary. After sending an audio packet, the sender +should check if a sync packet should also be sent (basically every +``TIMESYNC_INTERVAL`` frames and just after connecting). + + +Connect +~~~~~~~ + +#. Establish TCP connection to RTSP port + + - IP address(es) from Zeroconf TXT record + +#. Send RTSP ``OPTIONS`` request +#. Send RTSP ``ANNOUNCE`` request + + - Use password authentication based on authentication type from Zeroconf TXT + record or after receiving HTTP status code 401 (``401 Unauthorized``) + +#. Send RTSP ``SETUP`` request +#. Set sequence number of connection to a random value between 0 and 8192, + timestamp and normal play time to 0 each +#. Send RTSP ``RECORD`` request +#. Send initial volume (see `Setting volume`_) +#. Prepare RTP connection for audio packets + + +Disconnect +~~~~~~~~~~ + +#. Stop sending audio data +#. Close RTSP connection Preferred TCP/UDP ports @@ -314,6 +345,13 @@ Body Metadata in PList format ======= =================================== +Authentication +~~~~~~~~~~~~~~ + +AirTunes 2 uses the HTTP Digest authentication method as described +in RFC2617. + + Detect speaker type ~~~~~~~~~~~~~~~~~~~ |