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stream-interaction: Fix regression when a trigger role is also a cork role

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If the same role is named in trigger_roles and cork_roles, a stream with that
role will crash PA. This patch fixes the crash and re-introduces the old
behavior, so that for example specifying trigger_roles=alarm, phone and
cork_roles=alarm, multimedia means that a phone stream will cork alarm and
multimedia streams while an alarm stream will only cork multimedia streams.

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/767>
This commit is contained in:
Georg Chini 2023-01-08 13:33:25 +01:00 • committed by PulseAudio Marge Bot
parent 94dd7b4b7b
commit 6473e9ed0e
1 changed files with 28 additions and 7 deletions
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35
src/modules/stream-interaction.c
View file

@ -100,7 +100,7 @@ static const char *get_trigger_role(struct userdata *u, pa_object *stream, struc
return NULL;
}
static const char *find_trigger_stream(struct userdata *u, pa_object *device, pa_object *ignore_stream, struct group *g) {
static const char *find_trigger_stream(struct userdata *u, pa_object *current_stream, pa_object *device, pa_object *ignore_stream, struct group *g) {
pa_object *j;
uint32_t idx;
const char *trigger_role;
@ -108,6 +108,23 @@ static const char *find_trigger_stream(struct userdata *u, pa_object *device, pa
pa_assert(u);
pa_object_assert_ref(device);
/* If the current stream is a trigger stream, return the role of this stream, otherwise
* return the role of the first trigger stream that is found on the device. */
trigger_role = get_trigger_role(u, current_stream, g);
if (GET_DEVICE_FROM_STREAM(current_stream) == device && current_stream != ignore_stream && trigger_role) {
if (pa_sink_isinstance(device)) {
if (!PA_SINK_INPUT(current_stream)->muted &&
PA_SINK_INPUT(current_stream)->state != PA_SINK_INPUT_CORKED)
return trigger_role;
} else {
if (!PA_SOURCE_OUTPUT(current_stream)->muted &&
PA_SOURCE_OUTPUT(current_stream)->state != PA_SOURCE_OUTPUT_CORKED)
return trigger_role;
}
}
PA_IDXSET_FOREACH(j, pa_sink_isinstance(device) ? PA_SINK(device)->inputs : PA_SOURCE(device)->outputs, idx) {
if (j == ignore_stream)
continue;
@ -129,7 +146,7 @@ static const char *find_trigger_stream(struct userdata *u, pa_object *device, pa
return NULL;
}
static const char *find_global_trigger_stream(struct userdata *u, pa_object *ignore_stream, struct group *g) {
static const char *find_global_trigger_stream(struct userdata *u, pa_object *current_stream, pa_object *ignore_stream, struct group *g) {
const char *trigger_role = NULL;
pa_sink *sink;
pa_source *source;
@ -137,16 +154,20 @@ static const char *find_global_trigger_stream(struct userdata *u, pa_object *ign
pa_assert(u);
/* Check device of current stream first in case the current stream is a trigger stream. */
if ((trigger_role = find_trigger_stream(u, current_stream, GET_DEVICE_FROM_STREAM(current_stream), ignore_stream, g)))
return trigger_role;
/* Find any trigger role among the sink-inputs and source-outputs. */
PA_IDXSET_FOREACH(sink, u->core->sinks, idx)
if ((trigger_role = find_trigger_stream(u, PA_OBJECT(sink), ignore_stream, g)))
if ((trigger_role = find_trigger_stream(u, current_stream, PA_OBJECT(sink), ignore_stream, g)))
break;
if (!u->source_trigger || trigger_role)
return trigger_role;
PA_IDXSET_FOREACH(source, u->core->sources, idx)
if ((trigger_role = find_trigger_stream(u, PA_OBJECT(source), ignore_stream, g)))
if ((trigger_role = find_trigger_stream(u, current_stream, PA_OBJECT(source), ignore_stream, g)))
break;
return trigger_role;
@ -204,7 +225,7 @@ static inline void apply_interaction_to_sink(struct userdata *u, pa_sink *s, con
role = "no_role";
PA_IDXSET_FOREACH(interaction_role, g->interaction_roles, role_idx) {
if ((trigger = pa_streq(role, interaction_role)))
if ((trigger = (pa_streq(interaction_role, role) && (!get_trigger_role(u, PA_OBJECT(j), g) || !pa_safe_streq(new_trigger, role)))))
break;
if ((trigger = (pa_streq(interaction_role, "any_role") && !get_trigger_role(u, PA_OBJECT(j), g))))
break;
@ -289,10 +310,10 @@ static pa_hook_result_t process(struct userdata *u, pa_object *stream, bool crea
for (j = 0; j < u->n_groups; j++) {
if (u->global) {
trigger_role = find_global_trigger_stream(u, create ? NULL : stream, u->groups[j]);
trigger_role = find_global_trigger_stream(u, stream, create ? NULL : stream, u->groups[j]);
apply_interaction_global(u, trigger_role, create ? NULL : (pa_sink_input_isinstance(stream) ? PA_SINK_INPUT(stream) : NULL), new_stream, u->groups[j]);
} else {
trigger_role = find_trigger_stream(u, GET_DEVICE_FROM_STREAM(stream), create ? NULL : stream, u->groups[j]);
trigger_role = find_trigger_stream(u, stream, GET_DEVICE_FROM_STREAM(stream), create ? NULL : stream, u->groups[j]);
if (pa_sink_input_isinstance(stream))
apply_interaction_to_sink(u, PA_SINK_INPUT(stream)->sink, trigger_role, create ? NULL : PA_SINK_INPUT(stream), new_stream, u->groups[j]);
}