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review.jami.net / pjproject / 8a3670f532cd3351d83863c9a3e0a34884b48242 / . / pjsip / src / pjsua-lib / pjsua_aud.c
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/* $Id$ */
/*
* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <pjsua-lib/pjsua.h>
#include <pjsua-lib/pjsua_internal.h>
#if defined(PJSUA_MEDIA_HAS_PJMEDIA) && PJSUA_MEDIA_HAS_PJMEDIA != 0
#define THIS_FILE "pjsua_aud.c"
#define NULL_SND_DEV_ID -99
/*****************************************************************************
*
* Prototypes
*/
/* Open sound dev */
static pj_status_t open_snd_dev(pjmedia_snd_port_param *param);
/* Close existing sound device */
static void close_snd_dev(void);
/* Create audio device param */
static pj_status_t create_aud_param(pjmedia_aud_param *param,
pjmedia_aud_dev_index capture_dev,
pjmedia_aud_dev_index playback_dev,
unsigned clock_rate,
unsigned channel_count,
unsigned samples_per_frame,
unsigned bits_per_sample);
/*****************************************************************************
*
* Call API that are closely tied to PJMEDIA
*/
/*
* Check if call has an active media session.
*/
PJ_DEF(pj_bool_t) pjsua_call_has_media(pjsua_call_id call_id)
{
pjsua_call *call = &pjsua_var.calls[call_id];
PJ_ASSERT_RETURN(call_id>=0 && call_id<(int)pjsua_var.ua_cfg.max_calls,
PJ_EINVAL);
return call->audio_idx >= 0 && call->media[call->audio_idx].strm.a.stream;
}
/*
* Get the conference port identification associated with the call.
*/
PJ_DEF(pjsua_conf_port_id) pjsua_call_get_conf_port(pjsua_call_id call_id)
{
pjsua_call *call;
pjsua_conf_port_id port_id = PJSUA_INVALID_ID;
PJ_ASSERT_RETURN(call_id>=0 && call_id<(int)pjsua_var.ua_cfg.max_calls,
PJ_EINVAL);
/* Use PJSUA_LOCK() instead of acquire_call():
* https://trac.pjsip.org/repos/ticket/1371
*/
PJSUA_LOCK();
if (!pjsua_call_is_active(call_id))
goto on_return;
call = &pjsua_var.calls[call_id];
port_id = call->media[call->audio_idx].strm.a.conf_slot;
on_return:
PJSUA_UNLOCK();
return port_id;
}
/*
* Get media stream info for the specified media index.
*/
PJ_DEF(pj_status_t) pjsua_call_get_stream_info( pjsua_call_id call_id,
unsigned med_idx,
pjsua_stream_info *psi)
{
pjsua_call *call;
pjsua_call_media *call_med;
pj_status_t status;
PJ_ASSERT_RETURN(call_id>=0 && call_id<(int)pjsua_var.ua_cfg.max_calls,
PJ_EINVAL);
PJ_ASSERT_RETURN(psi, PJ_EINVAL);
PJSUA_LOCK();
call = &pjsua_var.calls[call_id];
if (med_idx >= call->med_cnt) {
PJSUA_UNLOCK();
return PJ_EINVAL;
}
call_med = &call->media[med_idx];
psi->type = call_med->type;
switch (call_med->type) {
case PJMEDIA_TYPE_AUDIO:
status = pjmedia_stream_get_info(call_med->strm.a.stream,
&psi->info.aud);
break;
#if defined(PJMEDIA_HAS_VIDEO) && (PJMEDIA_HAS_VIDEO != 0)
case PJMEDIA_TYPE_VIDEO:
status = pjmedia_vid_stream_get_info(call_med->strm.v.stream,
&psi->info.vid);
break;
#endif
default:
status = PJMEDIA_EINVALIMEDIATYPE;
break;
}
PJSUA_UNLOCK();
return status;
}
/*
* Get media stream statistic for the specified media index.
*/
PJ_DEF(pj_status_t) pjsua_call_get_stream_stat( pjsua_call_id call_id,
unsigned med_idx,
pjsua_stream_stat *stat)
{
pjsua_call *call;
pjsua_call_media *call_med;
pj_status_t status;
PJ_ASSERT_RETURN(call_id>=0 && call_id<(int)pjsua_var.ua_cfg.max_calls,
PJ_EINVAL);
PJ_ASSERT_RETURN(stat, PJ_EINVAL);
PJSUA_LOCK();
call = &pjsua_var.calls[call_id];
if (med_idx >= call->med_cnt) {
PJSUA_UNLOCK();
return PJ_EINVAL;
}
call_med = &call->media[med_idx];
switch (call_med->type) {
case PJMEDIA_TYPE_AUDIO:
status = pjmedia_stream_get_stat(call_med->strm.a.stream,
&stat->rtcp);
if (status == PJ_SUCCESS)
status = pjmedia_stream_get_stat_jbuf(call_med->strm.a.stream,
&stat->jbuf);
break;
#if defined(PJMEDIA_HAS_VIDEO) && (PJMEDIA_HAS_VIDEO != 0)
case PJMEDIA_TYPE_VIDEO:
status = pjmedia_vid_stream_get_stat(call_med->strm.v.stream,
&stat->rtcp);
if (status == PJ_SUCCESS)
status = pjmedia_vid_stream_get_stat_jbuf(call_med->strm.v.stream,
&stat->jbuf);
break;
#endif
default:
status = PJMEDIA_EINVALIMEDIATYPE;
break;
}
PJSUA_UNLOCK();
return status;
}
/*
* Send DTMF digits to remote using RFC 2833 payload formats.
*/
PJ_DEF(pj_status_t) pjsua_call_dial_dtmf( pjsua_call_id call_id,
const pj_str_t *digits)
{
pjsua_call *call;
pjsip_dialog *dlg = NULL;
pj_status_t status;
PJ_ASSERT_RETURN(call_id>=0 && call_id<(int)pjsua_var.ua_cfg.max_calls,
PJ_EINVAL);
PJ_LOG(4,(THIS_FILE, "Call %d dialing DTMF %.*s",
call_id, (int)digits->slen, digits->ptr));
pj_log_push_indent();
status = acquire_call("pjsua_call_dial_dtmf()", call_id, &call, &dlg);
if (status != PJ_SUCCESS)
goto on_return;
if (!pjsua_call_has_media(call_id)) {
PJ_LOG(3,(THIS_FILE, "Media is not established yet!"));
status = PJ_EINVALIDOP;
goto on_return;
}
status = pjmedia_stream_dial_dtmf(
call->media[call->audio_idx].strm.a.stream, digits);
on_return:
if (dlg) pjsip_dlg_dec_lock(dlg);
pj_log_pop_indent();
return status;
}
/*****************************************************************************
*
* Audio media with PJMEDIA backend
*/
/* Init pjmedia audio subsystem */
pj_status_t pjsua_aud_subsys_init()
{
pj_str_t codec_id = {NULL, 0};
unsigned opt;
pjmedia_audio_codec_config codec_cfg;
pj_status_t status;
/* To suppress warning about unused var when all codecs are disabled */
PJ_UNUSED_ARG(codec_id);
/*
* Register all codecs
*/
pjmedia_audio_codec_config_default(&codec_cfg);
codec_cfg.speex.quality = pjsua_var.media_cfg.quality;
codec_cfg.speex.complexity = -1;
codec_cfg.ilbc.mode = pjsua_var.media_cfg.ilbc_mode;
#if PJMEDIA_HAS_PASSTHROUGH_CODECS
/* Register passthrough codecs */
{
unsigned aud_idx;
unsigned ext_fmt_cnt = 0;
pjmedia_format ext_fmts[32];
/* List extended formats supported by audio devices */
for (aud_idx = 0; aud_idx < pjmedia_aud_dev_count(); ++aud_idx) {
pjmedia_aud_dev_info aud_info;
unsigned i;
status = pjmedia_aud_dev_get_info(aud_idx, &aud_info);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error querying audio device info",
status);
goto on_error;
}
/* Collect extended formats supported by this audio device */
for (i = 0; i < aud_info.ext_fmt_cnt; ++i) {
unsigned j;
pj_bool_t is_listed = PJ_FALSE;
/* See if this extended format is already in the list */
for (j = 0; j < ext_fmt_cnt && !is_listed; ++j) {
if (ext_fmts[j].id == aud_info.ext_fmt[i].id &&
ext_fmts[j].det.aud.avg_bps ==
aud_info.ext_fmt[i].det.aud.avg_bps)
{
is_listed = PJ_TRUE;
}
}
/* Put this format into the list, if it is not in the list */
if (!is_listed)
ext_fmts[ext_fmt_cnt++] = aud_info.ext_fmt[i];
pj_assert(ext_fmt_cnt <= PJ_ARRAY_SIZE(ext_fmts));
}
}
/* Init the passthrough codec with supported formats only */
codec_cfg.passthrough.setting.fmt_cnt = ext_fmt_cnt;
codec_cfg.passthrough.setting.fmts = ext_fmts;
codec_cfg.passthrough.setting.ilbc_mode = cfg->ilbc_mode;
}
#endif /* PJMEDIA_HAS_PASSTHROUGH_CODECS */
/* Register all codecs */
status = pjmedia_codec_register_audio_codecs(pjsua_var.med_endpt,
&codec_cfg);
if (status != PJ_SUCCESS) {
PJ_PERROR(1,(THIS_FILE, status, "Error registering codecs"));
goto on_error;
}
/* Set speex/16000 to higher priority*/
codec_id = pj_str("speex/16000");
pjmedia_codec_mgr_set_codec_priority(
pjmedia_endpt_get_codec_mgr(pjsua_var.med_endpt),
&codec_id, PJMEDIA_CODEC_PRIO_NORMAL+2);
/* Set speex/8000 to next higher priority*/
codec_id = pj_str("speex/8000");
pjmedia_codec_mgr_set_codec_priority(
pjmedia_endpt_get_codec_mgr(pjsua_var.med_endpt),
&codec_id, PJMEDIA_CODEC_PRIO_NORMAL+1);
/* Disable ALL L16 codecs */
codec_id = pj_str("L16");
pjmedia_codec_mgr_set_codec_priority(
pjmedia_endpt_get_codec_mgr(pjsua_var.med_endpt),
&codec_id, PJMEDIA_CODEC_PRIO_DISABLED);
/* Save additional conference bridge parameters for future
* reference.
*/
pjsua_var.mconf_cfg.channel_count = pjsua_var.media_cfg.channel_count;
pjsua_var.mconf_cfg.bits_per_sample = 16;
pjsua_var.mconf_cfg.samples_per_frame = pjsua_var.media_cfg.clock_rate *
pjsua_var.mconf_cfg.channel_count *
pjsua_var.media_cfg.audio_frame_ptime /
1000;
/* Init options for conference bridge. */
opt = PJMEDIA_CONF_NO_DEVICE;
if (pjsua_var.media_cfg.quality >= 3 &&
pjsua_var.media_cfg.quality <= 4)
{
opt |= PJMEDIA_CONF_SMALL_FILTER;
}
else if (pjsua_var.media_cfg.quality < 3) {
opt |= PJMEDIA_CONF_USE_LINEAR;
}
/* Init conference bridge. */
status = pjmedia_conf_create(pjsua_var.pool,
pjsua_var.media_cfg.max_media_ports,
pjsua_var.media_cfg.clock_rate,
pjsua_var.mconf_cfg.channel_count,
pjsua_var.mconf_cfg.samples_per_frame,
pjsua_var.mconf_cfg.bits_per_sample,
opt, &pjsua_var.mconf);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error creating conference bridge",
status);
goto on_error;
}
/* Are we using the audio switchboard (a.k.a APS-Direct)? */
pjsua_var.is_mswitch = pjmedia_conf_get_master_port(pjsua_var.mconf)
->info.signature == PJMEDIA_CONF_SWITCH_SIGNATURE;
/* Create null port just in case user wants to use null sound. */
status = pjmedia_null_port_create(pjsua_var.pool,
pjsua_var.media_cfg.clock_rate,
pjsua_var.mconf_cfg.channel_count,
pjsua_var.mconf_cfg.samples_per_frame,
pjsua_var.mconf_cfg.bits_per_sample,
&pjsua_var.null_port);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
return status;
on_error:
return status;
}
/* Check if sound device is idle. */
void pjsua_check_snd_dev_idle()
{
unsigned call_cnt;
/* Check if the sound device auto-close feature is disabled. */
if (pjsua_var.media_cfg.snd_auto_close_time < 0)
return;
/* Check if the sound device is currently closed. */
if (!pjsua_var.snd_is_on)
return;
/* Get the call count, we shouldn't close the sound device when there is
* any calls active.
*/
call_cnt = pjsua_call_get_count();
/* When this function is called from pjsua_media_channel_deinit() upon
* disconnecting call, actually the call count hasn't been updated/
* decreased. So we put additional check here, if there is only one
* call and it's in DISCONNECTED state, there is actually no active
* call.
*/
if (call_cnt == 1) {
pjsua_call_id call_id;
pj_status_t status;
status = pjsua_enum_calls(&call_id, &call_cnt);
if (status == PJ_SUCCESS && call_cnt > 0 &&
!pjsua_call_is_active(call_id))
{
call_cnt = 0;
}
}
/* Activate sound device auto-close timer if sound device is idle.
* It is idle when there is no port connection in the bridge and
* there is no active call.
*/
if (pjsua_var.snd_idle_timer.id == PJ_FALSE &&
call_cnt == 0 &&
pjmedia_conf_get_connect_count(pjsua_var.mconf) == 0)
{
pj_time_val delay;
delay.msec = 0;
delay.sec = pjsua_var.media_cfg.snd_auto_close_time;
pjsua_var.snd_idle_timer.id = PJ_TRUE;
pjsip_endpt_schedule_timer(pjsua_var.endpt, &pjsua_var.snd_idle_timer,
&delay);
}
}
/* Timer callback to close sound device */
static void close_snd_timer_cb( pj_timer_heap_t *th,
pj_timer_entry *entry)
{
PJ_UNUSED_ARG(th);
PJSUA_LOCK();
if (entry->id) {
PJ_LOG(4,(THIS_FILE,"Closing sound device after idle for %d second(s)",
pjsua_var.media_cfg.snd_auto_close_time));
entry->id = PJ_FALSE;
close_snd_dev();
}
PJSUA_UNLOCK();
}
pj_status_t pjsua_aud_subsys_start(void)
{
pj_status_t status = PJ_SUCCESS;
pj_timer_entry_init(&pjsua_var.snd_idle_timer, PJ_FALSE, NULL,
&close_snd_timer_cb);
return status;
}
pj_status_t pjsua_aud_subsys_destroy()
{
unsigned i;
close_snd_dev();
if (pjsua_var.mconf) {
pjmedia_conf_destroy(pjsua_var.mconf);
pjsua_var.mconf = NULL;
}
if (pjsua_var.null_port) {
pjmedia_port_destroy(pjsua_var.null_port);
pjsua_var.null_port = NULL;
}
/* Destroy file players */
for (i=0; i<PJ_ARRAY_SIZE(pjsua_var.player); ++i) {
if (pjsua_var.player[i].port) {
pjmedia_port_destroy(pjsua_var.player[i].port);
pjsua_var.player[i].port = NULL;
}
}
/* Destroy file recorders */
for (i=0; i<PJ_ARRAY_SIZE(pjsua_var.recorder); ++i) {
if (pjsua_var.recorder[i].port) {
pjmedia_port_destroy(pjsua_var.recorder[i].port);
pjsua_var.recorder[i].port = NULL;
}
}
return PJ_SUCCESS;
}
void pjsua_aud_stop_stream(pjsua_call_media *call_med)
{
pjmedia_stream *strm = call_med->strm.a.stream;
pjmedia_rtcp_stat stat;
if (strm) {
pjmedia_stream_send_rtcp_bye(strm);
if (call_med->strm.a.conf_slot != PJSUA_INVALID_ID) {
if (pjsua_var.mconf) {
pjsua_conf_remove_port(call_med->strm.a.conf_slot);
}
call_med->strm.a.conf_slot = PJSUA_INVALID_ID;
}
if ((call_med->dir & PJMEDIA_DIR_ENCODING) &&
(pjmedia_stream_get_stat(strm, &stat) == PJ_SUCCESS))
{
/* Save RTP timestamp & sequence, so when media session is
* restarted, those values will be restored as the initial
* RTP timestamp & sequence of the new media session. So in
* the same call session, RTP timestamp and sequence are
* guaranteed to be contigue.
*/
call_med->rtp_tx_seq_ts_set = 1 | (1 << 1);
call_med->rtp_tx_seq = stat.rtp_tx_last_seq;
call_med->rtp_tx_ts = stat.rtp_tx_last_ts;
}
if (pjsua_var.ua_cfg.cb.on_stream_destroyed) {
pjsua_var.ua_cfg.cb.on_stream_destroyed(call_med->call->index,
strm, call_med->idx);
}
pjmedia_stream_destroy(strm);
call_med->strm.a.stream = NULL;
}
pjsua_check_snd_dev_idle();
}
/*
* DTMF callback from the stream.
*/
static void dtmf_callback(pjmedia_stream *strm, void *user_data,
int digit)
{
PJ_UNUSED_ARG(strm);
pj_log_push_indent();
/* For discussions about call mutex protection related to this
* callback, please see ticket #460:
* http://trac.pjsip.org/repos/ticket/460#comment:4
*/
if (pjsua_var.ua_cfg.cb.on_dtmf_digit) {
pjsua_call_id call_id;
call_id = (pjsua_call_id)(long)user_data;
pjsua_var.ua_cfg.cb.on_dtmf_digit(call_id, digit);
}
pj_log_pop_indent();
}
pj_status_t pjsua_aud_channel_update(pjsua_call_media *call_med,
pj_pool_t *tmp_pool,
pjmedia_stream_info *si,
const pjmedia_sdp_session *local_sdp,
const pjmedia_sdp_session *remote_sdp)
{
pjsua_call *call = call_med->call;
pjmedia_port *media_port;
unsigned strm_idx = call_med->idx;
pj_status_t status = PJ_SUCCESS;
PJ_UNUSED_ARG(tmp_pool);
PJ_UNUSED_ARG(local_sdp);
PJ_UNUSED_ARG(remote_sdp);
PJ_LOG(4,(THIS_FILE,"Audio channel update.."));
pj_log_push_indent();
si->rtcp_sdes_bye_disabled = PJ_TRUE;
/* Check if no media is active */
if (si->dir != PJMEDIA_DIR_NONE) {
/* Override ptime, if this option is specified. */
if (pjsua_var.media_cfg.ptime != 0) {
si->param->setting.frm_per_pkt = (pj_uint8_t)
(pjsua_var.media_cfg.ptime / si->param->info.frm_ptime);
if (si->param->setting.frm_per_pkt == 0)
si->param->setting.frm_per_pkt = 1;
}
/* Disable VAD, if this option is specified. */
if (pjsua_var.media_cfg.no_vad) {
si->param->setting.vad = 0;
}
/* Optionally, application may modify other stream settings here
* (such as jitter buffer parameters, codec ptime, etc.)
*/
si->jb_init = pjsua_var.media_cfg.jb_init;
si->jb_min_pre = pjsua_var.media_cfg.jb_min_pre;
si->jb_max_pre = pjsua_var.media_cfg.jb_max_pre;
si->jb_max = pjsua_var.media_cfg.jb_max;
/* Set SSRC */
si->ssrc = call_med->ssrc;
/* Set RTP timestamp & sequence, normally these value are intialized
* automatically when stream session created, but for some cases (e.g:
* call reinvite, call update) timestamp and sequence need to be kept
* contigue.
*/
si->rtp_ts = call_med->rtp_tx_ts;
si->rtp_seq = call_med->rtp_tx_seq;
si->rtp_seq_ts_set = call_med->rtp_tx_seq_ts_set;
#if defined(PJMEDIA_STREAM_ENABLE_KA) && PJMEDIA_STREAM_ENABLE_KA!=0
/* Enable/disable stream keep-alive and NAT hole punch. */
si->use_ka = pjsua_var.acc[call->acc_id].cfg.use_stream_ka;
#endif
/* Create session based on session info. */
status = pjmedia_stream_create(pjsua_var.med_endpt, NULL, si,
call_med->tp, NULL,
&call_med->strm.a.stream);
if (status != PJ_SUCCESS) {
goto on_return;
}
/* Start stream */
status = pjmedia_stream_start(call_med->strm.a.stream);
if (status != PJ_SUCCESS) {
goto on_return;
}
if (call_med->prev_state == PJSUA_CALL_MEDIA_NONE)
pjmedia_stream_send_rtcp_sdes(call_med->strm.a.stream);
/* If DTMF callback is installed by application, install our
* callback to the session.
*/
if (pjsua_var.ua_cfg.cb.on_dtmf_digit) {
pjmedia_stream_set_dtmf_callback(call_med->strm.a.stream,
&dtmf_callback,
(void*)(long)(call->index));
}
/* Get the port interface of the first stream in the session.
* We need the port interface to add to the conference bridge.
*/
pjmedia_stream_get_port(call_med->strm.a.stream, &media_port);
/* Notify application about stream creation.
* Note: application may modify media_port to point to different
* media port
*/
if (pjsua_var.ua_cfg.cb.on_stream_created) {
pjsua_var.ua_cfg.cb.on_stream_created(call->index,
call_med->strm.a.stream,
strm_idx, &media_port);
}
/*
* Add the call to conference bridge.
*/
{
char tmp[PJSIP_MAX_URL_SIZE];
pj_str_t port_name;
port_name.ptr = tmp;
port_name.slen = pjsip_uri_print(PJSIP_URI_IN_REQ_URI,
call->inv->dlg->remote.info->uri,
tmp, sizeof(tmp));
if (port_name.slen < 1) {
port_name = pj_str("call");
}
status = pjmedia_conf_add_port( pjsua_var.mconf,
call->inv->pool_prov,
media_port,
&port_name,
(unsigned*)
&call_med->strm.a.conf_slot);
if (status != PJ_SUCCESS) {
goto on_return;
}
}
}
on_return:
pj_log_pop_indent();
return status;
}
/*
* Get maxinum number of conference ports.
*/
PJ_DEF(unsigned) pjsua_conf_get_max_ports(void)
{
return pjsua_var.media_cfg.max_media_ports;
}
/*
* Get current number of active ports in the bridge.
*/
PJ_DEF(unsigned) pjsua_conf_get_active_ports(void)
{
unsigned ports[PJSUA_MAX_CONF_PORTS];
unsigned count = PJ_ARRAY_SIZE(ports);
pj_status_t status;
status = pjmedia_conf_enum_ports(pjsua_var.mconf, ports, &count);
if (status != PJ_SUCCESS)
count = 0;
return count;
}
/*
* Enumerate all conference ports.
*/
PJ_DEF(pj_status_t) pjsua_enum_conf_ports(pjsua_conf_port_id id[],
unsigned *count)
{
return pjmedia_conf_enum_ports(pjsua_var.mconf, (unsigned*)id, count);
}
/*
* Get information about the specified conference port
*/
PJ_DEF(pj_status_t) pjsua_conf_get_port_info( pjsua_conf_port_id id,
pjsua_conf_port_info *info)
{
pjmedia_conf_port_info cinfo;
unsigned i;
pj_status_t status;
status = pjmedia_conf_get_port_info( pjsua_var.mconf, id, &cinfo);
if (status != PJ_SUCCESS)
return status;
pj_bzero(info, sizeof(*info));
info->slot_id = id;
info->name = cinfo.name;
info->clock_rate = cinfo.clock_rate;
info->channel_count = cinfo.channel_count;
info->samples_per_frame = cinfo.samples_per_frame;
info->bits_per_sample = cinfo.bits_per_sample;
/* Build array of listeners */
info->listener_cnt = cinfo.listener_cnt;
for (i=0; i<cinfo.listener_cnt; ++i) {
info->listeners[i] = cinfo.listener_slots[i];
}
return PJ_SUCCESS;
}
/*
* Add arbitrary media port to PJSUA's conference bridge.
*/
PJ_DEF(pj_status_t) pjsua_conf_add_port( pj_pool_t *pool,
pjmedia_port *port,
pjsua_conf_port_id *p_id)
{
pj_status_t status;
status = pjmedia_conf_add_port(pjsua_var.mconf, pool,
port, NULL, (unsigned*)p_id);
if (status != PJ_SUCCESS) {
if (p_id)
*p_id = PJSUA_INVALID_ID;
}
return status;
}
/*
* Remove arbitrary slot from the conference bridge.
*/
PJ_DEF(pj_status_t) pjsua_conf_remove_port(pjsua_conf_port_id id)
{
pj_status_t status;
status = pjmedia_conf_remove_port(pjsua_var.mconf, (unsigned)id);
pjsua_check_snd_dev_idle();
return status;
}
/*
* Establish unidirectional media flow from souce to sink.
*/
PJ_DEF(pj_status_t) pjsua_conf_connect( pjsua_conf_port_id source,
pjsua_conf_port_id sink)
{
pj_status_t status = PJ_SUCCESS;
PJ_LOG(4,(THIS_FILE, "%s connect: %d --> %d",
(pjsua_var.is_mswitch ? "Switch" : "Conf"),
source, sink));
pj_log_push_indent();
PJSUA_LOCK();
/* If sound device idle timer is active, cancel it first. */
if (pjsua_var.snd_idle_timer.id) {
pjsip_endpt_cancel_timer(pjsua_var.endpt, &pjsua_var.snd_idle_timer);
pjsua_var.snd_idle_timer.id = PJ_FALSE;
}
/* For audio switchboard (i.e. APS-Direct):
* Check if sound device need to be reopened, i.e: its attributes
* (format, clock rate, channel count) must match to peer's.
* Note that sound device can be reopened only if it doesn't have
* any connection.
*/
if (pjsua_var.is_mswitch) {
pjmedia_conf_port_info port0_info;
pjmedia_conf_port_info peer_info;
unsigned peer_id;
pj_bool_t need_reopen = PJ_FALSE;
peer_id = (source!=0)? source : sink;
status = pjmedia_conf_get_port_info(pjsua_var.mconf, peer_id,
&peer_info);
pj_assert(status == PJ_SUCCESS);
status = pjmedia_conf_get_port_info(pjsua_var.mconf, 0, &port0_info);
pj_assert(status == PJ_SUCCESS);
/* Check if sound device is instantiated. */
need_reopen = (pjsua_var.snd_port==NULL && pjsua_var.null_snd==NULL &&
!pjsua_var.no_snd);
/* Check if sound device need to reopen because it needs to modify
* settings to match its peer. Sound device must be idle in this case
* though.
*/
if (!need_reopen &&
port0_info.listener_cnt==0 && port0_info.transmitter_cnt==0)
{
need_reopen = (peer_info.format.id != port0_info.format.id ||
peer_info.format.det.aud.avg_bps !=
port0_info.format.det.aud.avg_bps ||
peer_info.clock_rate != port0_info.clock_rate ||
peer_info.channel_count!=port0_info.channel_count);
}
if (need_reopen) {
if (pjsua_var.cap_dev != NULL_SND_DEV_ID) {
pjmedia_snd_port_param param;
pjmedia_snd_port_param_default(&param);
param.ec_options = pjsua_var.media_cfg.ec_options;
/* Create parameter based on peer info */
status = create_aud_param(&param.base, pjsua_var.cap_dev,
pjsua_var.play_dev,
peer_info.clock_rate,
peer_info.channel_count,
peer_info.samples_per_frame,
peer_info.bits_per_sample);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error opening sound device",
status);
goto on_return;
}
/* And peer format */
if (peer_info.format.id != PJMEDIA_FORMAT_PCM) {
param.base.flags |= PJMEDIA_AUD_DEV_CAP_EXT_FORMAT;
param.base.ext_fmt = peer_info.format;
}
param.options = 0;
status = open_snd_dev(&param);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error opening sound device",
status);
goto on_return;
}
} else {
/* Null-audio */
status = pjsua_set_snd_dev(pjsua_var.cap_dev,
pjsua_var.play_dev);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error opening sound device",
status);
goto on_return;
}
}
} else if (pjsua_var.no_snd) {
if (!pjsua_var.snd_is_on) {
pjsua_var.snd_is_on = PJ_TRUE;
/* Notify app */
if (pjsua_var.ua_cfg.cb.on_snd_dev_operation) {
(*pjsua_var.ua_cfg.cb.on_snd_dev_operation)(1);
}
}
}
} else {
/* The bridge version */
/* Create sound port if none is instantiated */
if (pjsua_var.snd_port==NULL && pjsua_var.null_snd==NULL &&
!pjsua_var.no_snd)
{
status = pjsua_set_snd_dev(pjsua_var.cap_dev, pjsua_var.play_dev);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error opening sound device", status);
goto on_return;
}
} else if (pjsua_var.no_snd && !pjsua_var.snd_is_on) {
pjsua_var.snd_is_on = PJ_TRUE;
/* Notify app */
if (pjsua_var.ua_cfg.cb.on_snd_dev_operation) {
(*pjsua_var.ua_cfg.cb.on_snd_dev_operation)(1);
}
}
}
on_return:
PJSUA_UNLOCK();
if (status == PJ_SUCCESS) {
status = pjmedia_conf_connect_port(pjsua_var.mconf, source, sink, 0);
}
pj_log_pop_indent();
return status;
}
/*
* Disconnect media flow from the source to destination port.
*/
PJ_DEF(pj_status_t) pjsua_conf_disconnect( pjsua_conf_port_id source,
pjsua_conf_port_id sink)
{
pj_status_t status;
PJ_LOG(4,(THIS_FILE, "%s disconnect: %d -x- %d",
(pjsua_var.is_mswitch ? "Switch" : "Conf"),
source, sink));
pj_log_push_indent();
status = pjmedia_conf_disconnect_port(pjsua_var.mconf, source, sink);
pjsua_check_snd_dev_idle();
pj_log_pop_indent();
return status;
}
/*
* Adjust the signal level to be transmitted from the bridge to the
* specified port by making it louder or quieter.
*/
PJ_DEF(pj_status_t) pjsua_conf_adjust_tx_level(pjsua_conf_port_id slot,
float level)
{
return pjmedia_conf_adjust_tx_level(pjsua_var.mconf, slot,
(int)((level-1) * 128));
}
/*
* Adjust the signal level to be received from the specified port (to
* the bridge) by making it louder or quieter.
*/
PJ_DEF(pj_status_t) pjsua_conf_adjust_rx_level(pjsua_conf_port_id slot,
float level)
{
return pjmedia_conf_adjust_rx_level(pjsua_var.mconf, slot,
(int)((level-1) * 128));
}
/*
* Get last signal level transmitted to or received from the specified port.
*/
PJ_DEF(pj_status_t) pjsua_conf_get_signal_level(pjsua_conf_port_id slot,
unsigned *tx_level,
unsigned *rx_level)
{
return pjmedia_conf_get_signal_level(pjsua_var.mconf, slot,
tx_level, rx_level);
}
/*****************************************************************************
* File player.
*/
static char* get_basename(const char *path, unsigned len)
{
char *p = ((char*)path) + len;
if (len==0)
return p;
for (--p; p!=path && *p!='/' && *p!='\\'; ) --p;
return (p==path) ? p : p+1;
}
/*
* Create a file player, and automatically connect this player to
* the conference bridge.
*/
PJ_DEF(pj_status_t) pjsua_player_create( const pj_str_t *filename,
unsigned options,
pjsua_player_id *p_id)
{
unsigned slot, file_id;
char path[PJ_MAXPATH];
pj_pool_t *pool = NULL;
pjmedia_port *port;
pj_status_t status = PJ_SUCCESS;
if (pjsua_var.player_cnt >= PJ_ARRAY_SIZE(pjsua_var.player))
return PJ_ETOOMANY;
PJ_LOG(4,(THIS_FILE, "Creating file player: %.*s..",
(int)filename->slen, filename->ptr));
pj_log_push_indent();
PJSUA_LOCK();
for (file_id=0; file_id<PJ_ARRAY_SIZE(pjsua_var.player); ++file_id) {
if (pjsua_var.player[file_id].port == NULL)
break;
}
if (file_id == PJ_ARRAY_SIZE(pjsua_var.player)) {
/* This is unexpected */
pj_assert(0);
status = PJ_EBUG;
goto on_error;
}
pj_memcpy(path, filename->ptr, filename->slen);
path[filename->slen] = '\0';
pool = pjsua_pool_create(get_basename(path, filename->slen), 1000, 1000);
if (!pool) {
status = PJ_ENOMEM;
goto on_error;
}
status = pjmedia_wav_player_port_create(
pool, path,
pjsua_var.mconf_cfg.samples_per_frame *
1000 / pjsua_var.media_cfg.channel_count /
pjsua_var.media_cfg.clock_rate,
options, 0, &port);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to open file for playback", status);
goto on_error;
}
status = pjmedia_conf_add_port(pjsua_var.mconf, pool,
port, filename, &slot);
if (status != PJ_SUCCESS) {
pjmedia_port_destroy(port);
pjsua_perror(THIS_FILE, "Unable to add file to conference bridge",
status);
goto on_error;
}
pjsua_var.player[file_id].type = 0;
pjsua_var.player[file_id].pool = pool;
pjsua_var.player[file_id].port = port;
pjsua_var.player[file_id].slot = slot;
if (p_id) *p_id = file_id;
++pjsua_var.player_cnt;
PJSUA_UNLOCK();
PJ_LOG(4,(THIS_FILE, "Player created, id=%d, slot=%d", file_id, slot));
pj_log_pop_indent();
return PJ_SUCCESS;
on_error:
PJSUA_UNLOCK();
if (pool) pj_pool_release(pool);
pj_log_pop_indent();
return status;
}
/*
* Create a file playlist media port, and automatically add the port
* to the conference bridge.
*/
PJ_DEF(pj_status_t) pjsua_playlist_create( const pj_str_t file_names[],
unsigned file_count,
const pj_str_t *label,
unsigned options,
pjsua_player_id *p_id)
{
unsigned slot, file_id, ptime;
pj_pool_t *pool = NULL;
pjmedia_port *port;
pj_status_t status = PJ_SUCCESS;
if (pjsua_var.player_cnt >= PJ_ARRAY_SIZE(pjsua_var.player))
return PJ_ETOOMANY;
PJ_LOG(4,(THIS_FILE, "Creating playlist with %d file(s)..", file_count));
pj_log_push_indent();
PJSUA_LOCK();
for (file_id=0; file_id<PJ_ARRAY_SIZE(pjsua_var.player); ++file_id) {
if (pjsua_var.player[file_id].port == NULL)
break;
}
if (file_id == PJ_ARRAY_SIZE(pjsua_var.player)) {
/* This is unexpected */
pj_assert(0);
status = PJ_EBUG;
goto on_error;
}
ptime = pjsua_var.mconf_cfg.samples_per_frame * 1000 /
pjsua_var.media_cfg.clock_rate;
pool = pjsua_pool_create("playlist", 1000, 1000);
if (!pool) {
status = PJ_ENOMEM;
goto on_error;
}
status = pjmedia_wav_playlist_create(pool, label,
file_names, file_count,
ptime, options, 0, &port);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create playlist", status);
goto on_error;
}
status = pjmedia_conf_add_port(pjsua_var.mconf, pool,
port, &port->info.name, &slot);
if (status != PJ_SUCCESS) {
pjmedia_port_destroy(port);
pjsua_perror(THIS_FILE, "Unable to add port", status);
goto on_error;
}
pjsua_var.player[file_id].type = 1;
pjsua_var.player[file_id].pool = pool;
pjsua_var.player[file_id].port = port;
pjsua_var.player[file_id].slot = slot;
if (p_id) *p_id = file_id;
++pjsua_var.player_cnt;
PJSUA_UNLOCK();
PJ_LOG(4,(THIS_FILE, "Playlist created, id=%d, slot=%d", file_id, slot));
pj_log_pop_indent();
return PJ_SUCCESS;
on_error:
PJSUA_UNLOCK();
if (pool) pj_pool_release(pool);
pj_log_pop_indent();
return status;
}
/*
* Get conference port ID associated with player.
*/
PJ_DEF(pjsua_conf_port_id) pjsua_player_get_conf_port(pjsua_player_id id)
{
PJ_ASSERT_RETURN(id>=0&&id<(int)PJ_ARRAY_SIZE(pjsua_var.player), PJ_EINVAL);
PJ_ASSERT_RETURN(pjsua_var.player[id].port != NULL, PJ_EINVAL);
return pjsua_var.player[id].slot;
}
/*
* Get the media port for the player.
*/
PJ_DEF(pj_status_t) pjsua_player_get_port( pjsua_player_id id,
pjmedia_port **p_port)
{
PJ_ASSERT_RETURN(id>=0&&id<(int)PJ_ARRAY_SIZE(pjsua_var.player), PJ_EINVAL);
PJ_ASSERT_RETURN(pjsua_var.player[id].port != NULL, PJ_EINVAL);
PJ_ASSERT_RETURN(p_port != NULL, PJ_EINVAL);
*p_port = pjsua_var.player[id].port;
return PJ_SUCCESS;
}
/*
* Set playback position.
*/
PJ_DEF(pj_status_t) pjsua_player_set_pos( pjsua_player_id id,
pj_uint32_t samples)
{
PJ_ASSERT_RETURN(id>=0&&id<(int)PJ_ARRAY_SIZE(pjsua_var.player), PJ_EINVAL);
PJ_ASSERT_RETURN(pjsua_var.player[id].port != NULL, PJ_EINVAL);
PJ_ASSERT_RETURN(pjsua_var.player[id].type == 0, PJ_EINVAL);
return pjmedia_wav_player_port_set_pos(pjsua_var.player[id].port, samples);
}
/*
* Close the file, remove the player from the bridge, and free
* resources associated with the file player.
*/
PJ_DEF(pj_status_t) pjsua_player_destroy(pjsua_player_id id)
{
PJ_ASSERT_RETURN(id>=0&&id<(int)PJ_ARRAY_SIZE(pjsua_var.player), PJ_EINVAL);
PJ_ASSERT_RETURN(pjsua_var.player[id].port != NULL, PJ_EINVAL);
PJ_LOG(4,(THIS_FILE, "Destroying player %d..", id));
pj_log_push_indent();
PJSUA_LOCK();
if (pjsua_var.player[id].port) {
pjsua_conf_remove_port(pjsua_var.player[id].slot);
pjmedia_port_destroy(pjsua_var.player[id].port);
pjsua_var.player[id].port = NULL;
pjsua_var.player[id].slot = 0xFFFF;
pj_pool_release(pjsua_var.player[id].pool);
pjsua_var.player[id].pool = NULL;
pjsua_var.player_cnt--;
}
PJSUA_UNLOCK();
pj_log_pop_indent();
return PJ_SUCCESS;
}
/*****************************************************************************
* File recorder.
*/
/*
* Create a file recorder, and automatically connect this recorder to
* the conference bridge.
*/
PJ_DEF(pj_status_t) pjsua_recorder_create( const pj_str_t *filename,
unsigned enc_type,
void *enc_param,
pj_ssize_t max_size,
unsigned options,
pjsua_recorder_id *p_id)
{
enum Format
{
FMT_UNKNOWN,
FMT_WAV,
FMT_MP3,
};
unsigned slot, file_id;
char path[PJ_MAXPATH];
pj_str_t ext;
int file_format;
pj_pool_t *pool = NULL;
pjmedia_port *port;
pj_status_t status = PJ_SUCCESS;
/* Filename must present */
PJ_ASSERT_RETURN(filename != NULL, PJ_EINVAL);
/* Don't support max_size at present */
PJ_ASSERT_RETURN(max_size == 0 || max_size == -1, PJ_EINVAL);
/* Don't support encoding type at present */
PJ_ASSERT_RETURN(enc_type == 0, PJ_EINVAL);
PJ_LOG(4,(THIS_FILE, "Creating recorder %.*s..",
(int)filename->slen, filename->ptr));
pj_log_push_indent();
if (pjsua_var.rec_cnt >= PJ_ARRAY_SIZE(pjsua_var.recorder)) {
pj_log_pop_indent();
return PJ_ETOOMANY;
}
/* Determine the file format */
ext.ptr = filename->ptr + filename->slen - 4;
ext.slen = 4;
if (pj_stricmp2(&ext, ".wav") == 0)
file_format = FMT_WAV;
else if (pj_stricmp2(&ext, ".mp3") == 0)
file_format = FMT_MP3;
else {
PJ_LOG(1,(THIS_FILE, "pjsua_recorder_create() error: unable to "
"determine file format for %.*s",
(int)filename->slen, filename->ptr));
pj_log_pop_indent();
return PJ_ENOTSUP;
}
PJSUA_LOCK();
for (file_id=0; file_id<PJ_ARRAY_SIZE(pjsua_var.recorder); ++file_id) {
if (pjsua_var.recorder[file_id].port == NULL)
break;
}
if (file_id == PJ_ARRAY_SIZE(pjsua_var.recorder)) {
/* This is unexpected */
pj_assert(0);
status = PJ_EBUG;
goto on_return;
}
pj_memcpy(path, filename->ptr, filename->slen);
path[filename->slen] = '\0';
pool = pjsua_pool_create(get_basename(path, filename->slen), 1000, 1000);
if (!pool) {
status = PJ_ENOMEM;
goto on_return;
}
if (file_format == FMT_WAV) {
status = pjmedia_wav_writer_port_create(pool, path,
pjsua_var.media_cfg.clock_rate,
pjsua_var.mconf_cfg.channel_count,
pjsua_var.mconf_cfg.samples_per_frame,
pjsua_var.mconf_cfg.bits_per_sample,
options, 0, &port);
} else {
PJ_UNUSED_ARG(enc_param);
port = NULL;
status = PJ_ENOTSUP;
}
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to open file for recording", status);
goto on_return;
}
status = pjmedia_conf_add_port(pjsua_var.mconf, pool,
port, filename, &slot);
if (status != PJ_SUCCESS) {
pjmedia_port_destroy(port);
goto on_return;
}
pjsua_var.recorder[file_id].port = port;
pjsua_var.recorder[file_id].slot = slot;
pjsua_var.recorder[file_id].pool = pool;
if (p_id) *p_id = file_id;
++pjsua_var.rec_cnt;
PJSUA_UNLOCK();
PJ_LOG(4,(THIS_FILE, "Recorder created, id=%d, slot=%d", file_id, slot));
pj_log_pop_indent();
return PJ_SUCCESS;
on_return:
PJSUA_UNLOCK();
if (pool) pj_pool_release(pool);
pj_log_pop_indent();
return status;
}
/*
* Get conference port associated with recorder.
*/
PJ_DEF(pjsua_conf_port_id) pjsua_recorder_get_conf_port(pjsua_recorder_id id)
{
PJ_ASSERT_RETURN(id>=0 && id<(int)PJ_ARRAY_SIZE(pjsua_var.recorder),
PJ_EINVAL);
PJ_ASSERT_RETURN(pjsua_var.recorder[id].port != NULL, PJ_EINVAL);
return pjsua_var.recorder[id].slot;
}
/*
* Get the media port for the recorder.
*/
PJ_DEF(pj_status_t) pjsua_recorder_get_port( pjsua_recorder_id id,
pjmedia_port **p_port)
{
PJ_ASSERT_RETURN(id>=0 && id<(int)PJ_ARRAY_SIZE(pjsua_var.recorder),
PJ_EINVAL);
PJ_ASSERT_RETURN(pjsua_var.recorder[id].port != NULL, PJ_EINVAL);
PJ_ASSERT_RETURN(p_port != NULL, PJ_EINVAL);
*p_port = pjsua_var.recorder[id].port;
return PJ_SUCCESS;
}
/*
* Destroy recorder (this will complete recording).
*/
PJ_DEF(pj_status_t) pjsua_recorder_destroy(pjsua_recorder_id id)
{
PJ_ASSERT_RETURN(id>=0 && id<(int)PJ_ARRAY_SIZE(pjsua_var.recorder),
PJ_EINVAL);
PJ_ASSERT_RETURN(pjsua_var.recorder[id].port != NULL, PJ_EINVAL);
PJ_LOG(4,(THIS_FILE, "Destroying recorder %d..", id));
pj_log_push_indent();
PJSUA_LOCK();
if (pjsua_var.recorder[id].port) {
pjsua_conf_remove_port(pjsua_var.recorder[id].slot);
pjmedia_port_destroy(pjsua_var.recorder[id].port);
pjsua_var.recorder[id].port = NULL;
pjsua_var.recorder[id].slot = 0xFFFF;
pj_pool_release(pjsua_var.recorder[id].pool);
pjsua_var.recorder[id].pool = NULL;
pjsua_var.rec_cnt--;
}
PJSUA_UNLOCK();
pj_log_pop_indent();
return PJ_SUCCESS;
}
/*****************************************************************************
* Sound devices.
*/
/*
* Enum sound devices.
*/
PJ_DEF(pj_status_t) pjsua_enum_aud_devs( pjmedia_aud_dev_info info[],
unsigned *count)
{
unsigned i, dev_count;
dev_count = pjmedia_aud_dev_count();
if (dev_count > *count) dev_count = *count;
for (i=0; i<dev_count; ++i) {
pj_status_t status;
status = pjmedia_aud_dev_get_info(i, &info[i]);
if (status != PJ_SUCCESS)
return status;
}
*count = dev_count;
return PJ_SUCCESS;
}
PJ_DEF(pj_status_t) pjsua_enum_snd_devs( pjmedia_snd_dev_info info[],
unsigned *count)
{
unsigned i, dev_count;
dev_count = pjmedia_aud_dev_count();
if (dev_count > *count) dev_count = *count;
pj_bzero(info, dev_count * sizeof(pjmedia_snd_dev_info));
for (i=0; i<dev_count; ++i) {
pjmedia_aud_dev_info ai;
pj_status_t status;
status = pjmedia_aud_dev_get_info(i, &ai);
if (status != PJ_SUCCESS)
return status;
strncpy(info[i].name, ai.name, sizeof(info[i].name));
info[i].name[sizeof(info[i].name)-1] = '\0';
info[i].input_count = ai.input_count;
info[i].output_count = ai.output_count;
info[i].default_samples_per_sec = ai.default_samples_per_sec;
}
*count = dev_count;
return PJ_SUCCESS;
}
/* Create audio device parameter to open the device */
static pj_status_t create_aud_param(pjmedia_aud_param *param,
pjmedia_aud_dev_index capture_dev,
pjmedia_aud_dev_index playback_dev,
unsigned clock_rate,
unsigned channel_count,
unsigned samples_per_frame,
unsigned bits_per_sample)
{
pj_status_t status;
/* Normalize device ID with new convention about default device ID */
if (playback_dev == PJMEDIA_AUD_DEFAULT_CAPTURE_DEV)
playback_dev = PJMEDIA_AUD_DEFAULT_PLAYBACK_DEV;
/* Create default parameters for the device */
status = pjmedia_aud_dev_default_param(capture_dev, param);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error retrieving default audio "
"device parameters", status);
return status;
}
param->dir = PJMEDIA_DIR_CAPTURE_PLAYBACK;
param->rec_id = capture_dev;
param->play_id = playback_dev;
param->clock_rate = clock_rate;
param->channel_count = channel_count;
param->samples_per_frame = samples_per_frame;
param->bits_per_sample = bits_per_sample;
/* Update the setting with user preference */
#define update_param(cap, field) \
if (pjsua_var.aud_param.flags & cap) { \
param->flags |= cap; \
param->field = pjsua_var.aud_param.field; \
}
update_param( PJMEDIA_AUD_DEV_CAP_INPUT_VOLUME_SETTING, input_vol);
update_param( PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING, output_vol);
update_param( PJMEDIA_AUD_DEV_CAP_INPUT_ROUTE, input_route);
update_param( PJMEDIA_AUD_DEV_CAP_OUTPUT_ROUTE, output_route);
#undef update_param
/* Latency settings */
param->flags |= (PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY |
PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY);
param->input_latency_ms = pjsua_var.media_cfg.snd_rec_latency;
param->output_latency_ms = pjsua_var.media_cfg.snd_play_latency;
/* EC settings */
if (pjsua_var.media_cfg.ec_tail_len) {
param->flags |= (PJMEDIA_AUD_DEV_CAP_EC | PJMEDIA_AUD_DEV_CAP_EC_TAIL);
param->ec_enabled = PJ_TRUE;
param->ec_tail_ms = pjsua_var.media_cfg.ec_tail_len;
} else {
param->flags &= ~(PJMEDIA_AUD_DEV_CAP_EC|PJMEDIA_AUD_DEV_CAP_EC_TAIL);
}
return PJ_SUCCESS;
}
/* Internal: the first time the audio device is opened (during app
* startup), retrieve the audio settings such as volume level
* so that aud_get_settings() will work.
*/
static pj_status_t update_initial_aud_param()
{
pjmedia_aud_stream *strm;
pjmedia_aud_param param;
pj_status_t status;
PJ_ASSERT_RETURN(pjsua_var.snd_port != NULL, PJ_EBUG);
strm = pjmedia_snd_port_get_snd_stream(pjsua_var.snd_port);
status = pjmedia_aud_stream_get_param(strm, &param);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error audio stream "
"device parameters", status);
return status;
}
#define update_saved_param(cap, field) \
if (param.flags & cap) { \
pjsua_var.aud_param.flags |= cap; \
pjsua_var.aud_param.field = param.field; \
}
update_saved_param(PJMEDIA_AUD_DEV_CAP_INPUT_VOLUME_SETTING, input_vol);
update_saved_param(PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING, output_vol);
update_saved_param(PJMEDIA_AUD_DEV_CAP_INPUT_ROUTE, input_route);
update_saved_param(PJMEDIA_AUD_DEV_CAP_OUTPUT_ROUTE, output_route);
#undef update_saved_param
return PJ_SUCCESS;
}
/* Get format name */
static const char *get_fmt_name(pj_uint32_t id)
{
static char name[8];
if (id == PJMEDIA_FORMAT_L16)
return "PCM";
pj_memcpy(name, &id, 4);
name[4] = '\0';
return name;
}
/* Open sound device with the setting. */
static pj_status_t open_snd_dev(pjmedia_snd_port_param *param)
{
pjmedia_port *conf_port;
pj_status_t status;
PJ_ASSERT_RETURN(param, PJ_EINVAL);
/* Check if NULL sound device is used */
if (NULL_SND_DEV_ID==param->base.rec_id ||
NULL_SND_DEV_ID==param->base.play_id)
{
return pjsua_set_null_snd_dev();
}
/* Close existing sound port */
close_snd_dev();
/* Notify app */
if (pjsua_var.ua_cfg.cb.on_snd_dev_operation) {
(*pjsua_var.ua_cfg.cb.on_snd_dev_operation)(1);
}
/* Create memory pool for sound device. */
pjsua_var.snd_pool = pjsua_pool_create("pjsua_snd", 4000, 4000);
PJ_ASSERT_RETURN(pjsua_var.snd_pool, PJ_ENOMEM);
PJ_LOG(4,(THIS_FILE, "Opening sound device %s@%d/%d/%dms",
get_fmt_name(param->base.ext_fmt.id),
param->base.clock_rate, param->base.channel_count,
param->base.samples_per_frame / param->base.channel_count *
1000 / param->base.clock_rate));
pj_log_push_indent();
status = pjmedia_snd_port_create2( pjsua_var.snd_pool,
param, &pjsua_var.snd_port);
if (status != PJ_SUCCESS)
goto on_error;
/* Get the port0 of the conference bridge. */
conf_port = pjmedia_conf_get_master_port(pjsua_var.mconf);
pj_assert(conf_port != NULL);
/* For conference bridge, resample if necessary if the bridge's
* clock rate is different than the sound device's clock rate.
*/
if (!pjsua_var.is_mswitch &&
param->base.ext_fmt.id == PJMEDIA_FORMAT_PCM &&
PJMEDIA_PIA_SRATE(&conf_port->info) != param->base.clock_rate)
{
pjmedia_port *resample_port;
unsigned resample_opt = 0;
if (pjsua_var.media_cfg.quality >= 3 &&
pjsua_var.media_cfg.quality <= 4)
{
resample_opt |= PJMEDIA_RESAMPLE_USE_SMALL_FILTER;
}
else if (pjsua_var.media_cfg.quality < 3) {
resample_opt |= PJMEDIA_RESAMPLE_USE_LINEAR;
}
status = pjmedia_resample_port_create(pjsua_var.snd_pool,
conf_port,
param->base.clock_rate,
resample_opt,
&resample_port);
if (status != PJ_SUCCESS) {
char errmsg[PJ_ERR_MSG_SIZE];
pj_strerror(status, errmsg, sizeof(errmsg));
PJ_LOG(4, (THIS_FILE,
"Error creating resample port: %s",
errmsg));
close_snd_dev();
goto on_error;
}
conf_port = resample_port;
}
/* Otherwise for audio switchboard, the switch's port0 setting is
* derived from the sound device setting, so update the setting.
*/
if (pjsua_var.is_mswitch) {
if (param->base.flags & PJMEDIA_AUD_DEV_CAP_EXT_FORMAT) {
conf_port->info.fmt = param->base.ext_fmt;
} else {
unsigned bps, ptime_usec;
bps = param->base.clock_rate * param->base.bits_per_sample;
ptime_usec = param->base.samples_per_frame /
param->base.channel_count * 1000000 /
param->base.clock_rate;
pjmedia_format_init_audio(&conf_port->info.fmt,
PJMEDIA_FORMAT_PCM,
param->base.clock_rate,
param->base.channel_count,
param->base.bits_per_sample,
ptime_usec,
bps, bps);
}
}
/* Connect sound port to the bridge */
status = pjmedia_snd_port_connect(pjsua_var.snd_port,
conf_port );
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to connect conference port to "
"sound device", status);
pjmedia_snd_port_destroy(pjsua_var.snd_port);
pjsua_var.snd_port = NULL;
goto on_error;
}
/* Save the device IDs */
pjsua_var.cap_dev = param->base.rec_id;
pjsua_var.play_dev = param->base.play_id;
/* Update sound device name. */
{
pjmedia_aud_dev_info rec_info;
pjmedia_aud_stream *strm;
pjmedia_aud_param si;
pj_str_t tmp;
strm = pjmedia_snd_port_get_snd_stream(pjsua_var.snd_port);
status = pjmedia_aud_stream_get_param(strm, &si);
if (status == PJ_SUCCESS)
status = pjmedia_aud_dev_get_info(si.rec_id, &rec_info);
if (status==PJ_SUCCESS) {
if (param->base.clock_rate != pjsua_var.media_cfg.clock_rate) {
char tmp_buf[128];
int tmp_buf_len = sizeof(tmp_buf);
tmp_buf_len = pj_ansi_snprintf(tmp_buf, sizeof(tmp_buf)-1,
"%s (%dKHz)",
rec_info.name,
param->base.clock_rate/1000);
pj_strset(&tmp, tmp_buf, tmp_buf_len);
pjmedia_conf_set_port0_name(pjsua_var.mconf, &tmp);
} else {
pjmedia_conf_set_port0_name(pjsua_var.mconf,
pj_cstr(&tmp, rec_info.name));
}
}
/* Any error is not major, let it through */
status = PJ_SUCCESS;
}
/* If this is the first time the audio device is open, retrieve some
* settings from the device (such as volume settings) so that the
* pjsua_snd_get_setting() work.
*/
if (pjsua_var.aud_open_cnt == 0) {
update_initial_aud_param();
++pjsua_var.aud_open_cnt;
}
pjsua_var.snd_is_on = PJ_TRUE;
pj_log_pop_indent();
return PJ_SUCCESS;
on_error:
pj_log_pop_indent();
return status;
}
/* Close existing sound device */
static void close_snd_dev(void)
{
pj_log_push_indent();
/* Notify app */
if (pjsua_var.snd_is_on && pjsua_var.ua_cfg.cb.on_snd_dev_operation) {
(*pjsua_var.ua_cfg.cb.on_snd_dev_operation)(0);
}
/* Close sound device */
if (pjsua_var.snd_port) {
pjmedia_aud_dev_info cap_info, play_info;
pjmedia_aud_stream *strm;
pjmedia_aud_param param;
strm = pjmedia_snd_port_get_snd_stream(pjsua_var.snd_port);
pjmedia_aud_stream_get_param(strm, &param);
if (pjmedia_aud_dev_get_info(param.rec_id, &cap_info) != PJ_SUCCESS)
cap_info.name[0] = '\0';
if (pjmedia_aud_dev_get_info(param.play_id, &play_info) != PJ_SUCCESS)
play_info.name[0] = '\0';
PJ_LOG(4,(THIS_FILE, "Closing %s sound playback device and "
"%s sound capture device",
play_info.name, cap_info.name));
pjmedia_snd_port_disconnect(pjsua_var.snd_port);
pjmedia_snd_port_destroy(pjsua_var.snd_port);
pjsua_var.snd_port = NULL;
}
/* Close null sound device */
if (pjsua_var.null_snd) {
PJ_LOG(4,(THIS_FILE, "Closing null sound device.."));
pjmedia_master_port_destroy(pjsua_var.null_snd, PJ_FALSE);
pjsua_var.null_snd = NULL;
}
if (pjsua_var.snd_pool)
pj_pool_release(pjsua_var.snd_pool);
pjsua_var.snd_pool = NULL;
pjsua_var.snd_is_on = PJ_FALSE;
pj_log_pop_indent();
}
/*
* Select or change sound device. Application may call this function at
* any time to replace current sound device.
*/
PJ_DEF(pj_status_t) pjsua_set_snd_dev( int capture_dev,
int playback_dev)
{
unsigned alt_cr_cnt = 1;
unsigned alt_cr[] = {0, 44100, 48000, 32000, 16000, 8000};
unsigned i;
pj_status_t status = -1;
PJ_LOG(4,(THIS_FILE, "Set sound device: capture=%d, playback=%d",
capture_dev, playback_dev));
pj_log_push_indent();
PJSUA_LOCK();
/* Null-sound */
if (capture_dev==NULL_SND_DEV_ID && playback_dev==NULL_SND_DEV_ID) {
PJSUA_UNLOCK();
status = pjsua_set_null_snd_dev();
pj_log_pop_indent();
return status;
}
/* Set default clock rate */
alt_cr[0] = pjsua_var.media_cfg.snd_clock_rate;
if (alt_cr[0] == 0)
alt_cr[0] = pjsua_var.media_cfg.clock_rate;
/* Allow retrying of different clock rate if we're using conference
* bridge (meaning audio format is always PCM), otherwise lock on
* to one clock rate.
*/
if (pjsua_var.is_mswitch) {
alt_cr_cnt = 1;
} else {
alt_cr_cnt = PJ_ARRAY_SIZE(alt_cr);
}
/* Attempts to open the sound device with different clock rates */
for (i=0; i<alt_cr_cnt; ++i) {
pjmedia_snd_port_param param;
unsigned samples_per_frame;
/* Create the default audio param */
samples_per_frame = alt_cr[i] *
pjsua_var.media_cfg.audio_frame_ptime *
pjsua_var.media_cfg.channel_count / 1000;
pjmedia_snd_port_param_default(&param);
param.ec_options = pjsua_var.media_cfg.ec_options;
status = create_aud_param(&param.base, capture_dev, playback_dev,
alt_cr[i], pjsua_var.media_cfg.channel_count,
samples_per_frame, 16);
if (status != PJ_SUCCESS)
goto on_error;
/* Open! */
param.options = 0;
status = open_snd_dev(&param);
if (status == PJ_SUCCESS)
break;
}
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to open sound device", status);
goto on_error;
}
pjsua_var.no_snd = PJ_FALSE;
pjsua_var.snd_is_on = PJ_TRUE;
PJSUA_UNLOCK();
pj_log_pop_indent();
return PJ_SUCCESS;
on_error:
PJSUA_UNLOCK();
pj_log_pop_indent();
return status;
}
/*
* Get currently active sound devices. If sound devices has not been created
* (for example when pjsua_start() is not called), it is possible that
* the function returns PJ_SUCCESS with -1 as device IDs.
*/
PJ_DEF(pj_status_t) pjsua_get_snd_dev(int *capture_dev,
int *playback_dev)
{
PJSUA_LOCK();
if (capture_dev) {
*capture_dev = pjsua_var.cap_dev;
}
if (playback_dev) {
*playback_dev = pjsua_var.play_dev;
}
PJSUA_UNLOCK();
return PJ_SUCCESS;
}
/*
* Use null sound device.
*/
PJ_DEF(pj_status_t) pjsua_set_null_snd_dev(void)
{
pjmedia_port *conf_port;
pj_status_t status;
PJ_LOG(4,(THIS_FILE, "Setting null sound device.."));
pj_log_push_indent();
PJSUA_LOCK();
/* Close existing sound device */
close_snd_dev();
/* Notify app */
if (pjsua_var.ua_cfg.cb.on_snd_dev_operation) {
(*pjsua_var.ua_cfg.cb.on_snd_dev_operation)(1);
}
/* Create memory pool for sound device. */
pjsua_var.snd_pool = pjsua_pool_create("pjsua_snd", 4000, 4000);
PJ_ASSERT_RETURN(pjsua_var.snd_pool, PJ_ENOMEM);
PJ_LOG(4,(THIS_FILE, "Opening null sound device.."));
/* Get the port0 of the conference bridge. */
conf_port = pjmedia_conf_get_master_port(pjsua_var.mconf);
pj_assert(conf_port != NULL);
/* Create master port, connecting port0 of the conference bridge to
* a null port.
*/
status = pjmedia_master_port_create(pjsua_var.snd_pool, pjsua_var.null_port,
conf_port, 0, &pjsua_var.null_snd);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create null sound device",
status);
PJSUA_UNLOCK();
pj_log_pop_indent();
return status;
}
/* Start the master port */
status = pjmedia_master_port_start(pjsua_var.null_snd);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
pjsua_var.cap_dev = NULL_SND_DEV_ID;
pjsua_var.play_dev = NULL_SND_DEV_ID;
pjsua_var.no_snd = PJ_FALSE;
pjsua_var.snd_is_on = PJ_TRUE;
PJSUA_UNLOCK();
pj_log_pop_indent();
return PJ_SUCCESS;
}
/*
* Use no device!
*/
PJ_DEF(pjmedia_port*) pjsua_set_no_snd_dev(void)
{
PJSUA_LOCK();
/* Close existing sound device */
close_snd_dev();
pjsua_var.no_snd = PJ_TRUE;
PJSUA_UNLOCK();
return pjmedia_conf_get_master_port(pjsua_var.mconf);
}
/*
* Configure the AEC settings of the sound port.
*/
PJ_DEF(pj_status_t) pjsua_set_ec(unsigned tail_ms, unsigned options)
{
pj_status_t status = PJ_SUCCESS;
PJSUA_LOCK();
pjsua_var.media_cfg.ec_tail_len = tail_ms;
pjsua_var.media_cfg.ec_options = options;
if (pjsua_var.snd_port)
status = pjmedia_snd_port_set_ec(pjsua_var.snd_port, pjsua_var.pool,
tail_ms, options);
PJSUA_UNLOCK();
return status;
}
/*
* Get current AEC tail length.
*/
PJ_DEF(pj_status_t) pjsua_get_ec_tail(unsigned *p_tail_ms)
{
*p_tail_ms = pjsua_var.media_cfg.ec_tail_len;
return PJ_SUCCESS;
}
/*
* Check whether the sound device is currently active.
*/
PJ_DEF(pj_bool_t) pjsua_snd_is_active(void)
{
return pjsua_var.snd_port != NULL;
}
/*
* Configure sound device setting to the sound device being used.
*/
PJ_DEF(pj_status_t) pjsua_snd_set_setting( pjmedia_aud_dev_cap cap,
const void *pval,
pj_bool_t keep)
{
pj_status_t status;
/* Check if we are allowed to set the cap */
if ((cap & pjsua_var.aud_svmask) == 0) {
return PJMEDIA_EAUD_INVCAP;
}
PJSUA_LOCK();
/* If sound is active, set it immediately */
if (pjsua_snd_is_active()) {
pjmedia_aud_stream *strm;
strm = pjmedia_snd_port_get_snd_stream(pjsua_var.snd_port);
status = pjmedia_aud_stream_set_cap(strm, cap, pval);
} else {
status = PJ_SUCCESS;
}
if (status != PJ_SUCCESS) {
PJSUA_UNLOCK();
return status;
}
/* Save in internal param for later device open */
if (keep) {
status = pjmedia_aud_param_set_cap(&pjsua_var.aud_param,
cap, pval);
}
PJSUA_UNLOCK();
return status;
}
/*
* Retrieve a sound device setting.
*/
PJ_DEF(pj_status_t) pjsua_snd_get_setting( pjmedia_aud_dev_cap cap,
void *pval)
{
pj_status_t status;
PJSUA_LOCK();
/* If sound device has never been opened before, open it to
* retrieve the initial setting from the device (e.g. audio
* volume)
*/
if (pjsua_var.aud_open_cnt==0) {
PJ_LOG(4,(THIS_FILE, "Opening sound device to get initial settings"));
pjsua_set_snd_dev(pjsua_var.cap_dev, pjsua_var.play_dev);
close_snd_dev();
}
if (pjsua_snd_is_active()) {
/* Sound is active, retrieve from device directly */
pjmedia_aud_stream *strm;
strm = pjmedia_snd_port_get_snd_stream(pjsua_var.snd_port);
status = pjmedia_aud_stream_get_cap(strm, cap, pval);
} else {
/* Otherwise retrieve from internal param */
status = pjmedia_aud_param_get_cap(&pjsua_var.aud_param,
cap, pval);
}
PJSUA_UNLOCK();
return status;
}
#endif /* PJSUA_MEDIA_HAS_PJMEDIA */