// This callback gets called when our context changes state. We really only
// care about when it's ready or if it has failed
void state_cb(pa_context *c, void *userdata) {
pa_context_state_t state;
int *pa_ready = userdata;
printf("State changed\n");
state = pa_context_get_state(c);
switch (state) {
// There are just here for reference
case PA_CONTEXT_UNCONNECTED:
case PA_CONTEXT_CONNECTING:
case PA_CONTEXT_AUTHORIZING:
case PA_CONTEXT_SETTING_NAME:
default:
break;
case PA_CONTEXT_FAILED:
case PA_CONTEXT_TERMINATED:
*pa_ready = 2;
break;
case PA_CONTEXT_READY: {
pa_buffer_attr buffer_attr;
if (verbose)
printf("Connection established.%s\n", CLEAR_LINE);
if (!(stream = pa_stream_new(c, "JanPlayback", &sample_spec, NULL))) {
printf("pa_stream_new() failed: %s", pa_strerror(pa_context_errno(c)));
exit(1); // goto fail;
}
pa_stream_set_state_callback(stream, stream_state_callback, NULL);
pa_stream_set_write_callback(stream, stream_write_callback, NULL);
//pa_stream_set_read_callback(stream, stream_read_callback, NULL);
pa_stream_set_suspended_callback(stream, stream_suspended_callback, NULL);
pa_stream_set_moved_callback(stream, stream_moved_callback, NULL);
pa_stream_set_underflow_callback(stream, stream_underflow_callback, NULL);
pa_stream_set_overflow_callback(stream, stream_overflow_callback, NULL);
pa_stream_set_started_callback(stream, stream_started_callback, NULL);
pa_stream_set_event_callback(stream, stream_event_callback, NULL);
pa_stream_set_buffer_attr_callback(stream, stream_buffer_attr_callback, NULL);
pa_zero(buffer_attr);
buffer_attr.maxlength = (uint32_t) -1;
buffer_attr.prebuf = (uint32_t) -1;
pa_cvolume cv;
if (pa_stream_connect_playback(stream, NULL, &buffer_attr, flags,
NULL,
NULL) < 0) {
printf("pa_stream_connect_playback() failed: %s", pa_strerror(pa_context_errno(c)));
exit(1); //goto fail;
} else {
printf("Set playback callback\n");
}
pa_stream_trigger(stream, stream_success, NULL);
}
break;
}
}
/* This is called whenever the context status changes */
static void context_state_callback(pa_context *c, void *userdata) {
pa_assert(c);
switch (pa_context_get_state(c)) {
case PA_CONTEXT_CONNECTING:
case PA_CONTEXT_AUTHORIZING:
case PA_CONTEXT_SETTING_NAME:
break;
case PA_CONTEXT_READY: {
pa_buffer_attr buffer_attr;
pa_assert(c);
pa_assert(!stream);
if (verbose)
pa_log(_("Connection established.%s"), CLEAR_LINE);
if (!(stream = pa_stream_new_with_proplist(c, NULL, &sample_spec, &channel_map, proplist))) {
pa_log(_("pa_stream_new() failed: %s"), pa_strerror(pa_context_errno(c)));
goto fail;
}
pa_stream_set_state_callback(stream, stream_state_callback, NULL);
pa_stream_set_write_callback(stream, stream_write_callback, NULL);
pa_stream_set_read_callback(stream, stream_read_callback, NULL);
pa_stream_set_suspended_callback(stream, stream_suspended_callback, NULL);
pa_stream_set_moved_callback(stream, stream_moved_callback, NULL);
pa_stream_set_underflow_callback(stream, stream_underflow_callback, NULL);
pa_stream_set_overflow_callback(stream, stream_overflow_callback, NULL);
pa_stream_set_started_callback(stream, stream_started_callback, NULL);
pa_stream_set_event_callback(stream, stream_event_callback, NULL);
pa_stream_set_buffer_attr_callback(stream, stream_buffer_attr_callback, NULL);
pa_zero(buffer_attr);
buffer_attr.maxlength = (uint32_t) -1;
buffer_attr.prebuf = (uint32_t) -1;
if (latency_msec > 0) {
buffer_attr.fragsize = buffer_attr.tlength = pa_usec_to_bytes(latency_msec * PA_USEC_PER_MSEC, &sample_spec);
flags |= PA_STREAM_ADJUST_LATENCY;
} else if (latency > 0) {
buffer_attr.fragsize = buffer_attr.tlength = (uint32_t) latency;
flags |= PA_STREAM_ADJUST_LATENCY;
} else
buffer_attr.fragsize = buffer_attr.tlength = (uint32_t) -1;
if (process_time_msec > 0) {
buffer_attr.minreq = pa_usec_to_bytes(process_time_msec * PA_USEC_PER_MSEC, &sample_spec);
} else if (process_time > 0)
buffer_attr.minreq = (uint32_t) process_time;
else
buffer_attr.minreq = (uint32_t) -1;
if (mode == PLAYBACK) {
pa_cvolume cv;
if (pa_stream_connect_playback(stream, device, &buffer_attr, flags, volume_is_set ? pa_cvolume_set(&cv, sample_spec.channels, volume) : NULL, NULL) < 0) {
pa_log(_("pa_stream_connect_playback() failed: %s"), pa_strerror(pa_context_errno(c)));
goto fail;
}
} else {
if (pa_stream_connect_record(stream, device, latency > 0 ? &buffer_attr : NULL, flags) < 0) {
pa_log(_("pa_stream_connect_record() failed: %s"), pa_strerror(pa_context_errno(c)));
goto fail;
}
}
break;
}
case PA_CONTEXT_TERMINATED:
quit(0);
break;
case PA_CONTEXT_FAILED:
default:
pa_log(_("Connection failure: %s"), pa_strerror(pa_context_errno(c)));
goto fail;
}
return;
fail:
quit(1);
}