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ecore/audio: rewrite pulseaudio output to not use global variables 

this breaks down immediately when calling init/shutdown in quick succession
due to the async nature of pulseaudio. we have object-based private data, so
we can just use that instead

Reviewed-by: Marcel Hollerbach <mail@marcel-hollerbach.de>
Differential Revision: https://phab.enlightenment.org/D11531
This commit is contained in:
Mike Blumenkrantz 2020-03-17 12:06:13 -04:00 committed by Marcel Hollerbach
parent 1af46ef302
commit 9324bcc361
1 changed files with 76 additions and 49 deletions
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125
src/lib/ecore_audio/ecore_audio_obj_out_pulse.c
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@ -25,27 +25,19 @@ extern pa_mainloop_api functable;
#define MY_CLASS ECORE_AUDIO_OUT_PULSE_CLASS
#define MY_CLASS_NAME "Ecore_Audio_Out_Pulse"
struct _Ecore_Audio_Pulse_Class {
pa_mainloop_api *api;
pa_context *context;
pa_context_state_t state;
Ecore_Job *state_job;
Eina_List *outputs;
};
static struct _Ecore_Audio_Pulse_Class class_vars = {
.api = &functable,
};
struct _Ecore_Audio_Out_Pulse_Data
{
char *foo;
pa_mainloop_api *api;
pa_context *context;
pa_context_state_t state;
Ecore_Job *state_job;
Eina_List *outputs;
};
typedef struct _Ecore_Audio_Out_Pulse_Data Ecore_Audio_Out_Pulse_Data;
EOLIAN static void
_ecore_audio_out_pulse_ecore_audio_volume_set(Eo *eo_obj, Ecore_Audio_Out_Pulse_Data *_pd EINA_UNUSED, double volume)
_ecore_audio_out_pulse_ecore_audio_volume_set(Eo *eo_obj, Ecore_Audio_Out_Pulse_Data *pd, double volume)
{
Eo *in;
pa_stream *stream = NULL;
@ -65,7 +57,7 @@ _ecore_audio_out_pulse_ecore_audio_volume_set(Eo *eo_obj, Ecore_Audio_Out_Pulse_
EINA_LIST_FOREACH(out_obj->inputs, input, in) {
stream = efl_key_data_get(in, "pulse_data");
idx = EPA_CALL(pa_stream_get_index)(stream);
EPA_CALL(pa_operation_unref)(EPA_CALL(pa_context_set_sink_input_volume)(class_vars.context, idx, &pa_volume, NULL, NULL));
EPA_CALL(pa_operation_unref)(EPA_CALL(pa_context_set_sink_input_volume)(pd->context, idx, &pa_volume, NULL, NULL));
}
}
@ -114,6 +106,7 @@ static Eina_Bool _input_attach_internal(Eo *eo_obj, Eo *in)
pa_stream *stream;
Eina_Bool ret = EINA_FALSE;
Ecore_Audio_Object *ea_obj = efl_data_scope_get(eo_obj, ECORE_AUDIO_CLASS);
Ecore_Audio_Out_Pulse_Data *pd = efl_data_scope_get(eo_obj, MY_CLASS);
if (!EPA_LOAD()) return EINA_FALSE;
ret = ecore_audio_obj_out_input_attach(efl_super(eo_obj, MY_CLASS), in);
@ -128,7 +121,7 @@ static Eina_Bool _input_attach_internal(Eo *eo_obj, Eo *in)
ss.rate = ss.rate * speed;
stream = EPA_CALL(pa_stream_new)(class_vars.context, name, &ss, NULL);
stream = EPA_CALL(pa_stream_new)(pd->context, name, &ss, NULL);
if (!stream) {
ERR("Could not create stream");
ecore_audio_obj_out_input_detach(efl_super(eo_obj, MY_CLASS), in);
@ -151,18 +144,27 @@ static Eina_Bool _input_attach_internal(Eo *eo_obj, Eo *in)
static void _delayed_attach_cb(void *data, const Efl_Event *event)
{
Eo *in = data;
efl_event_callback_del(event->object, ECORE_AUDIO_OUT_PULSE_EVENT_CONTEXT_READY, _delayed_attach_cb, in);
efl_event_callback_del(event->object, ECORE_AUDIO_OUT_PULSE_EVENT_CONTEXT_READY, _delayed_attach_cb, data);
_input_attach_internal(event->object, in);
_input_attach_internal(event->object, data);
}
static Eina_Bool
_is_input_attached(Eo *eo_obj, Eo *in)
{
Ecore_Audio_Output *out_obj = efl_data_scope_get(eo_obj, ECORE_AUDIO_OUT_CLASS);
if (!out_obj->inputs) return EINA_FALSE;
return !!eina_list_data_find(out_obj->inputs, in);
}
EOLIAN static Eina_Bool
_ecore_audio_out_pulse_ecore_audio_out_input_attach(Eo *eo_obj, Ecore_Audio_Out_Pulse_Data *_pd EINA_UNUSED, Eo *in)
_ecore_audio_out_pulse_ecore_audio_out_input_attach(Eo *eo_obj, Ecore_Audio_Out_Pulse_Data *pd, Eo *in)
{
Eina_Bool retval = EINA_TRUE;
if (class_vars.state != PA_CONTEXT_READY) {
if (_is_input_attached(eo_obj, in)) return EINA_TRUE;
if (pd->state != PA_CONTEXT_READY) {
DBG("Delaying input_attach because PA context is not ready.");
efl_event_callback_add(eo_obj, ECORE_AUDIO_OUT_PULSE_EVENT_CONTEXT_READY, _delayed_attach_cb, in);
} else {
@ -180,16 +182,32 @@ static void _drain_cb(pa_stream *stream, int success EINA_UNUSED, void *data EIN
}
EOLIAN static Eina_Bool
_ecore_audio_out_pulse_ecore_audio_out_input_detach(Eo *eo_obj, Ecore_Audio_Out_Pulse_Data *_pd EINA_UNUSED, Eo *in)
_ecore_audio_out_pulse_ecore_audio_out_input_detach(Eo *eo_obj, Ecore_Audio_Out_Pulse_Data *pd, Eo *in)
{
pa_stream *stream = NULL;
Eina_Bool ret2 = EINA_FALSE;
pa_operation *op;
if (!EPA_LOAD()) return EINA_FALSE;
if (!EPA_LOAD())
{
ERR("Failed to load PA!");
return EINA_FALSE;
}
if (!_is_input_attached(eo_obj, in))
{
ERR("Input object passed is not currently attached to this output!");
return EINA_FALSE;
}
if (pd->state != PA_CONTEXT_READY)
efl_event_callback_del(in, ECORE_AUDIO_OUT_PULSE_EVENT_CONTEXT_READY, _delayed_attach_cb, pd);
else
efl_event_callback_del(in, ECORE_AUDIO_IN_EVENT_IN_SAMPLERATE_CHANGED, _update_samplerate_cb, eo_obj);
ret2 = ecore_audio_obj_out_input_detach(efl_super(eo_obj, MY_CLASS), in);
if (!ret2)
return EINA_FALSE;
{
ERR("Super call failed for ecore_audio_obj_out_input_detach!");
return EINA_FALSE;
}
stream = efl_key_data_get(in, "pulse_data");
@ -197,7 +215,12 @@ _ecore_audio_out_pulse_ecore_audio_out_input_detach(Eo *eo_obj, Ecore_Audio_Out_
op = EPA_CALL(pa_stream_drain) (stream, _drain_cb, NULL);
if (!op)
{
ERR("Failed to drain PulseAudio stream.");
op = EPA_CALL(pa_stream_flush)(stream, _drain_cb, NULL);
if (!op)
{
EPA_CALL(pa_stream_disconnect)(stream);
EPA_CALL(pa_stream_unref)(stream);
}
return EINA_FALSE;
}
@ -205,67 +228,69 @@ _ecore_audio_out_pulse_ecore_audio_out_input_detach(Eo *eo_obj, Ecore_Audio_Out_
return EINA_TRUE;
}
static void _state_cb(pa_context *context, void *data EINA_UNUSED)
static void _state_cb(pa_context *context, void *data)
{
Eina_List *out, *tmp;
Eo *eo_obj;
pa_context_state_t state;
Ecore_Audio_Out_Pulse_Data *pd = data;
if (!EPA_LOAD()) return;
state = EPA_CALL(pa_context_get_state)(context);
class_vars.state = state;
pd->state = state;
//ref everything in the list to be sure...
EINA_LIST_FOREACH(class_vars.outputs, out, eo_obj) {
EINA_LIST_FOREACH(pd->outputs, out, eo_obj) {
efl_ref(eo_obj);
}
// the callback here can delete things in the list..
if (state == PA_CONTEXT_READY) {
DBG("PA context ready.");
EINA_LIST_FOREACH(class_vars.outputs, out, eo_obj) {
EINA_LIST_FOREACH(pd->outputs, out, eo_obj) {
efl_event_callback_call(eo_obj, ECORE_AUDIO_OUT_PULSE_EVENT_CONTEXT_READY, NULL);
}
} else if ((state == PA_CONTEXT_FAILED) || (state == PA_CONTEXT_TERMINATED)) {
DBG("PA context fail.");
EINA_LIST_FOREACH(class_vars.outputs, out, eo_obj) {
EINA_LIST_FOREACH(pd->outputs, out, eo_obj) {
efl_event_callback_call(eo_obj, ECORE_AUDIO_OUT_PULSE_EVENT_CONTEXT_FAIL, NULL);
}
} else {
DBG("Connection state %i", state);
}
// now unref everything safely
EINA_LIST_FOREACH_SAFE(class_vars.outputs, out, tmp, eo_obj) {
EINA_LIST_FOREACH_SAFE(pd->outputs, out, tmp, eo_obj) {
efl_unref(eo_obj);
}
}
static void _state_job(void *data EINA_UNUSED)
static void _state_job(void *data)
{
if ((class_vars.state == PA_CONTEXT_FAILED) ||
(class_vars.state == PA_CONTEXT_TERMINATED))
Ecore_Audio_Out_Pulse_Data *pd = data;
if ((pd->state == PA_CONTEXT_FAILED) ||
(pd->state == PA_CONTEXT_TERMINATED))
{
Eo *eo_obj;
Eina_List *out, *tmp;
DBG("PA context fail.");
//ref everything in the list to be sure...
EINA_LIST_FOREACH(class_vars.outputs, out, eo_obj) {
EINA_LIST_FOREACH(pd->outputs, out, eo_obj) {
efl_ref(eo_obj);
}
// the callback here can delete things in the list..
EINA_LIST_FOREACH(class_vars.outputs, out, eo_obj) {
EINA_LIST_FOREACH(pd->outputs, out, eo_obj) {
efl_event_callback_call(eo_obj, ECORE_AUDIO_OUT_PULSE_EVENT_CONTEXT_FAIL, NULL);
}
// now unref everything safely
EINA_LIST_FOREACH_SAFE(class_vars.outputs, out, tmp, eo_obj) {
EINA_LIST_FOREACH_SAFE(pd->outputs, out, tmp, eo_obj) {
efl_unref(eo_obj);
}
}
class_vars.state_job = NULL;
pd->state_job = NULL;
}
EOLIAN static Eo *
_ecore_audio_out_pulse_efl_object_constructor(Eo *eo_obj, Ecore_Audio_Out_Pulse_Data *_pd EINA_UNUSED)
_ecore_audio_out_pulse_efl_object_constructor(Eo *eo_obj, Ecore_Audio_Out_Pulse_Data *pd)
{
int argc;
char **argv, *disp = NULL;
@ -274,10 +299,11 @@ _ecore_audio_out_pulse_efl_object_constructor(Eo *eo_obj, Ecore_Audio_Out_Pulse_
if (!EPA_LOAD()) return NULL;
eo_obj = efl_constructor(efl_super(eo_obj, MY_CLASS));
pd->api = &functable;
out_obj->need_writer = EINA_FALSE;
if (!class_vars.context) {
if (!pd->context) {
// if we're in a wayland world rather than x11... but DISPLAY also set...
if (getenv("WAYLAND_DISPLAY")) disp = getenv("DISPLAY");
@ -310,9 +336,9 @@ _ecore_audio_out_pulse_efl_object_constructor(Eo *eo_obj, Ecore_Audio_Out_Pulse_
ecore_app_args_get(&argc, &argv);
if (!argc) {
DBG("Could not get program name, pulse outputs will be named ecore_audio");
class_vars.context = EPA_CALL(pa_context_new)(class_vars.api, "ecore_audio");
pd->context = EPA_CALL(pa_context_new)(pd->api, "ecore_audio");
} else {
class_vars.context = EPA_CALL(pa_context_new)(class_vars.api, basename(argv[0]));
pd->context = EPA_CALL(pa_context_new)(pd->api, basename(argv[0]));
}
// if we had a display value and a displayenv buffer then let's restore
// the previous value content of DISPLAY as we duplicated it above and
@ -327,21 +353,22 @@ _ecore_audio_out_pulse_efl_object_constructor(Eo *eo_obj, Ecore_Audio_Out_Pulse_
// free up our temporary local DISPLAY env sring copy if we have it
if (disp) free(disp);
EPA_CALL(pa_context_set_state_callback)(class_vars.context, _state_cb, NULL);
EPA_CALL(pa_context_connect)(class_vars.context, NULL, PA_CONTEXT_NOFLAGS, NULL);
EPA_CALL(pa_context_set_state_callback)(pd->context, _state_cb, pd);
EPA_CALL(pa_context_connect)(pd->context, NULL, PA_CONTEXT_NOFLAGS, NULL);
}
class_vars.outputs = eina_list_append(class_vars.outputs, eo_obj);
if (class_vars.state_job) ecore_job_del(class_vars.state_job);
class_vars.state_job = ecore_job_add(_state_job, NULL);
pd->outputs = eina_list_append(pd->outputs, eo_obj);
pd->state_job = ecore_job_add(_state_job, pd);
return eo_obj;
}
EOLIAN static void
_ecore_audio_out_pulse_efl_object_destructor(Eo *eo_obj, Ecore_Audio_Out_Pulse_Data *_pd EINA_UNUSED)
_ecore_audio_out_pulse_efl_object_destructor(Eo *eo_obj, Ecore_Audio_Out_Pulse_Data *pd)
{
class_vars.outputs = eina_list_remove(class_vars.outputs, eo_obj);
pd->outputs = eina_list_remove(pd->outputs, eo_obj);
ecore_job_del(pd->state_job);
EPA_CALL(pa_context_unref)(pd->context);
efl_destructor(efl_super(eo_obj, MY_CLASS));
}