macosx/iphone/main_slave.mm

   1 //
   2 //  main.m
   3 //  iPhoneNet
   4 //
   5 //  Created by Stéphane  LETZ on 16/02/09.
   6 //  Copyright Grame 2009. All rights reserved.
   7 //
   8
   9 #import <UIKit/UIKit.h>
  10 #include <jack/net.h>
  11
  12 #include "TiPhoneCoreAudioRenderer.h"
  13
  14 #define NUM_INPUT 0
  15 #define NUM_OUTPUT 2
  16
  17 jack_net_slave_t* net = NULL;
  18 jack_adapter_t* adapter = NULL;
  19
  20 int buffer_size;
  21 int sample_rate;
  22
  23 static int net_process(jack_nframes_t buffer_size,
  24                         int audio_input,
  25                         float** audio_input_buffer,
  26                         int midi_input,
  27                         void** midi_input_buffer,
  28                         int audio_output,
  29                         float** audio_output_buffer,
  30                         int midi_output,
  31                         void** midi_output_buffer,
  32                         void* data)
  33 {
  34     jack_adapter_pull_and_push(adapter, audio_output_buffer, audio_input_buffer, buffer_size);
  35
  36     // Process input, produce output
  37     if (audio_input == audio_output) {
  38         // Copy net input to net output
  39         for (int i = 0; i < audio_input; i++) {
  40             memcpy(audio_output_buffer[i], audio_input_buffer[i], buffer_size * sizeof(float));
  41         }
  42     }
  43     return 0;
  44 }
  45
  46 static void net_shutdown(void *arg)
  47 {
  48     if (adapter)
  49         jack_flush_adapter(adapter);
  50 }
  51
  52 static void SlaveAudioCallback(int frames, float** inputs, float** outputs, void* arg)
  53 {
  54     jack_adapter_push_and_pull(adapter, inputs, outputs, frames);
  55 }
  56
  57 //http://www.securityfocus.com/infocus/1884
  58
  59 #define WIFI_MTU 1500
  60
  61 int main(int argc, char *argv[]) {
  62
  63     NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
  64
  65     jack_slave_t request = { NUM_OUTPUT, NUM_INPUT, 0, 0, WIFI_MTU, -1, JackCeltEncoder, 128, 2 };
  66     jack_master_t result;
  67
  68     //if ((net = jack_net_slave_open("169.254.112.119", DEFAULT_PORT, "iPhone", &request, &result))  == 0) {
  69     if ((net = jack_net_slave_open(DEFAULT_MULTICAST_IP, DEFAULT_PORT, "iPod", &request, &result))  == 0) {
  70         printf("jack_net_slave_open error...\n");
  71         return -1;
  72     }
  73
  74     if ((adapter = jack_create_adapter(NUM_INPUT,
  75                                     NUM_OUTPUT,
  76                                     result.buffer_size,
  77                                     result.sample_rate,
  78                                     result.buffer_size,
  79                                     result.sample_rate)) == 0) {
  80         return -1;
  81     }
  82
  83     TiPhoneCoreAudioRenderer audio_device(NUM_INPUT, NUM_OUTPUT);
  84
  85     jack_set_net_slave_process_callback(net, net_process, NULL);
  86     jack_set_net_slave_shutdown_callback(net, net_shutdown, NULL);
  87
  88     if (jack_net_slave_activate(net) != 0) {
  89         printf("Cannot activate slave client\n");
  90         return -1;
  91     }
  92
  93     if (audio_device.Open(result.buffer_size, result.sample_rate) < 0) {
  94         return -1;
  95     }
  96
  97     audio_device.SetAudioCallback(SlaveAudioCallback, NULL);
  98
  99     if (audio_device.Start() < 0) {
 100         return -1;
 101     }
 102
 103     int retVal = UIApplicationMain(argc, argv, nil, nil);
 104     [pool release];
 105
 106     audio_device.Stop();
 107     audio_device.Close();
 108
 109     // Wait for application end
 110     jack_net_slave_deactivate(net);
 111     jack_net_slave_close(net);
 112     jack_destroy_adapter(adapter);
 113     return retVal;
 114 }