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// -*- C++ -*-
// $Id$
interface Audio_Control
{
typedef sequence<char> my_seq_char;
struct AudioParameter
{
long encodeType;
long channels;
long samplesPerSecond;
long bytesPerSample;
};
/* CmdINITaudio parameter of fixed structure of 3 integers and a AudioPara,
replys with CmdINITaudio followed by reply or CmdFAIL followed by a string */
struct INITaudioPara
{
long sn;
long version;
AudioParameter para;
long nameLength;
my_seq_char audiofile;
/* char audioFile[] */
};
struct INITaudioReply
{
long live;
long format;
AudioParameter para;
long totalSamples;
};
/* CmdPLAY parameter */
struct PLAYPara
{
long sn;
long nextSample;
long samplesPerSecond; /* audio playback speed */
long samplesPerPacket; /* Number of samples in a packet */
long ABsamples; /* size of client VB buffer in samples */
long spslimit; /* QoS parameter: sps supported by the audio channel */
};
/* STOP followed only by SN */
/* CmdSPEED parameter */
struct SPEEDPara
{
long sn;
long samplesPerSecond;
long samplesPerPacket; /* Number of samples in a packet */
long spslimit;
};
boolean init_audio (in INITaudioPara para,
out INITaudioReply reply_para);
boolean play (in PLAYPara para, out long ats);
boolean speed (in SPEEDPara para);
boolean stop (in long cmdsn);
oneway void close ();
boolean set_peer (inout string peer);
// Initializes the server to communicate to the <peer>, which can be
// "ip-number:port-number" (e.g., "tango.cs.wustl.edu:1234" or
// "128.252.166.57:1234"). If there is no ':' in the <address> it
// is assumed to be a port number, with the IP address being
// INADDR_ANY.
// Server returns it's UDP data port number.
};
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