www.pudn.com > exosip.rar > sound-mediastreamer.c

/* 
 * josua - Jack's open sip User Agent 
 * 
 * Copyright (C) 2002,2003   Aymeric Moizard  
 * 
 * This is free software; you can redistribute it and/or modify 
 * it under the terms of the GNU General Public License as 
 * published by the Free Software Foundation; either version 2, 
 * or (at your option) any later version. 
 * 
 * This is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 * GNU General Public License for more details. 
 * 
 * You should have received a copy of the GNU General Public 
 * License along with dpkg; if not, write to the Free Software 
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 
 */ 
 
#include "jcalls.h" 
 
#ifdef MEDIASTREAMER_SUPPORT 
 
int 
os_sound_init () 
{ 
  ortp_init (); 
  ortp_set_debug_file ("oRTP", NULL); 
  rtp_profile_set_payload (&av_profile, 115, &lpc1015); 
  rtp_profile_set_payload (&av_profile, 110, &speex_nb); 
  rtp_profile_set_payload (&av_profile, 111, &speex_wb); 
 
  ms_init (); 
  ms_speex_codec_init (); 
  return 0; 
} 
 
int 
os_sound_start (call_t * ca, int port) 
{ 
  /* creates the couple of encoder/decoder */ 
  PayloadType *pt; 
 
  pt = rtp_profile_get_payload (&av_profile, ca->payload); 
  if (pt == NULL) 
    { 
      OSIP_TRACE (osip_trace (__FILE__, __LINE__, OSIP_ERROR, NULL, 
                              "undefined payload type\n")); 
      return -1; 
    } 
  if (ms_encoder_new_with_string_id (pt->mime_type) == NULL 
      || ms_decoder_new_with_string_id (pt->mime_type) == NULL) 
    { 
      /* No registered codec for this payload... */ 
      OSIP_TRACE (osip_trace (__FILE__, __LINE__, OSIP_ERROR, NULL, 
                              "No decoder availlable for payload %i\n", 
                              ca->payload)); 
      return -1; 
    } 
 
  ca->audio = audio_stream_start (&av_profile, 
                                  port, 
                                  ca->remote_sdp_audio_ip, 
                                  ca->remote_sdp_audio_port, ca->payload, 250); 
  return 0; 
} 
 
void 
os_sound_close (call_t * ca) 
{ 
  if (ca->audio != NULL) 
    { 
      audio_stream_stop (ca->audio); 
    } 
} 
 
#endif