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mod_portaudio: implement endpoint reads

This commit is contained in:
Moises Silva 2011-03-19 19:55:12 -04:00
parent 877b4cf53b
commit fbce9061a3
1 changed files with 58 additions and 1 deletions
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59
src/mod/endpoints/mod_portaudio/mod_portaudio.c
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@ -137,9 +137,13 @@ typedef struct _audio_endpoint {
/*! Associated private information if involved in a call */
private_t *master;
/*! For timed writes */
/*! For timed read and writes */
switch_timer_t read_timer;
switch_timer_t write_timer;
/* We need our own read frame */
switch_frame_t read_frame;
/*! Let's be safe */
switch_mutex_t *mutex;
} audio_endpoint_t;
@ -725,11 +729,21 @@ static switch_status_t channel_on_destroy(switch_core_session_t *session)
return SWITCH_STATUS_SUCCESS;
}
static int release_stream_channel(shared_audio_stream_t *stream, int index, int input);
static switch_status_t channel_on_hangup(switch_core_session_t *session)
{
private_t *tech_pvt = switch_core_session_get_private(session);
switch_assert(tech_pvt != NULL);
if (tech_pvt->audio_endpoint) {
audio_endpoint_t *endpoint = tech_pvt->audio_endpoint;
switch_mutex_lock(endpoint->mutex);
/* release the stream channels */
release_stream_channel(endpoint->in_stream, endpoint->inchan, 1);
release_stream_channel(endpoint->out_stream, endpoint->outchan, 0);
switch_mutex_unlock(endpoint->mutex);
}
switch_mutex_lock(globals.pa_mutex);
switch_core_hash_delete(globals.call_hash, tech_pvt->call_id);
switch_mutex_unlock(globals.pa_mutex);
@ -789,12 +803,40 @@ static switch_status_t channel_send_dtmf(switch_core_session_t *session, const s
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_endpoint_read(audio_endpoint_t *endpoint, switch_frame_t **frame)
{
int samples = 0;
if (!endpoint->in_stream) {
*frame = &globals.cng_frame;
return SWITCH_STATUS_SUCCESS;
}
samples = ReadAudioStream(endpoint->in_stream->stream,
endpoint->read_frame.data, STREAM_SAMPLES_PER_PACKET(endpoint->in_stream),
&endpoint->read_timer);
if (!samples) {
*frame = &globals.cng_frame;
return SWITCH_STATUS_SUCCESS;
}
endpoint->read_frame.datalen = (samples * sizeof(int16_t));
endpoint->read_frame.samples = samples;
*frame = &endpoint->read_frame;
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_read_frame(switch_core_session_t *session, switch_frame_t **frame, switch_io_flag_t flags, int stream_id)
{
private_t *tech_pvt = switch_core_session_get_private(session);
int samples = 0;
switch_status_t status = SWITCH_STATUS_FALSE;
switch_assert(tech_pvt != NULL);
if (tech_pvt->audio_endpoint) {
return channel_endpoint_read(tech_pvt->audio_endpoint, frame);
}
if (!globals.main_stream) {
goto normal_return;
@ -1462,6 +1504,21 @@ static switch_status_t load_endpoints(switch_xml_t endpoints)
"Incomatible input and output streams for endpoint '%s'\n", endpoint_name);
continue;
}
if (switch_core_timer_init(&endpoint->read_timer,
globals.timer_name, endpoint->in_stream->codec_ms,
STREAM_SAMPLES_PER_PACKET(endpoint->in_stream), module_pool) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "failed to setup read timer for endpoint '%s'!\n", endpoint_name);
continue;
}
if (switch_core_timer_init(&endpoint->write_timer,
globals.timer_name, endpoint->out_stream->codec_ms,
STREAM_SAMPLES_PER_PACKET(endpoint->in_stream), module_pool) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "failed to setup read timer for endpoint '%s'!\n", endpoint_name);
continue;
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE,
"Created endpoint '%s', instream = %s, outstream = %s\n", endpoint->name,
endpoint->in_stream ? endpoint->in_stream->name : "(none)",