Changeset 1945 for pjproject/trunk/pjmedia/src/pjmedia/rtcp_xr.c
- Timestamp:
- May 2, 2008 3:01:10 PM (16 years ago)
- File:
-
- 1 edited
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pjproject/trunk/pjmedia/src/pjmedia/rtcp_xr.c
r1943 r1945 270 270 pj_uint32_t c33; 271 271 pj_uint32_t ctotal, p32, p23, m; 272 unsigned est_extra_delay; 272 273 273 274 r = (pjmedia_rtcp_xr_rb_voip_mtc*) &sess->pkt.buf[size]; … … 342 343 (sess->rtcp_session->stat.rtt.last / 1000); 343 344 344 /* End system delay estimation = RTT/2 + current jitter buffer size +345 * EXTRA345 /* End system delay = RTT/2 + current jitter buffer size + 346 * EXTRA (estimated extra delay) 346 347 * EXTRA will cover additional delay introduced by other components of 347 348 * audio engine, e.g: sound device, codec, AEC, PLC, WSOLA. 348 349 * Since it is difficult to get the exact value of EXTRA, estimation 349 * is taken to be totally around 50 ms.350 * is taken to be totally around 30ms + sound device latency. 350 351 */ 352 est_extra_delay = 30 + 353 #if PJMEDIA_SOUND_IMPLEMENTATION==PJMEDIA_SOUND_PORTAUDIO_SOUND 354 PJMEDIA_PASOUND_MAX_LATENCY 355 #elif PJMEDIA_SOUND_IMPLEMENTATION==PJMEDIA_SOUND_NULL_SOUND 356 0 357 #else 358 (PJMEDIA_SOUND_BUFFER_COUNT * 15) 359 #endif 360 ; 351 361 sess->stat.rx.voip_mtc.end_sys_delay = (pj_uint16_t) 352 (sess->stat.rx.voip_mtc.rnd_trip_delay / 2 + 353 sess->stat.rx.voip_mtc.jb_nom + 50); 362 (sess->stat.rx.voip_mtc.rnd_trip_delay / 2 + 363 sess->stat.rx.voip_mtc.jb_nom + 364 est_extra_delay); 354 365 355 366 /* Generate block contents */
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