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stream: remove READ flag when removing params

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Clear the READ flag when the param is removed.
Don't recursively emit param_changed events or we could end up in an
infite loop when we update params from param_changed.
This commit is contained in:
Wim Taymans 2023-06-14 16:12:30 +02:00
parent 0e516dec44
commit aaa91b2b7e
2 changed files with 87 additions and 9 deletions
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53
src/pipewire/filter.c
View file

@ -152,6 +152,7 @@ struct filter {
unsigned int process_rt:1;
unsigned int driving:1;
unsigned int trigger:1;
int in_emit_param_changed;
};
static int get_param_index(uint32_t id)
@ -276,6 +277,8 @@ static void clear_params(struct filter *impl, struct port *port, uint32_t id)
{
struct param *p, *t;
struct spa_list *param_list;
bool found = false;
int i, idx;
if (port)
param_list = &port->param_list;
@ -285,10 +288,42 @@ static void clear_params(struct filter *impl, struct port *port, uint32_t id)
spa_list_for_each_safe(p, t, param_list, link) {
if (id == SPA_ID_INVALID ||
(p->id == id && !(p->flags & PARAM_FLAG_LOCKED))) {
found = true;
spa_list_remove(&p->link);
free(p);
}
}
if (found) {
if (id == SPA_ID_INVALID) {
if (port) {
port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS;
for (i = 0; i < N_PORT_PARAMS; i++) {
port->params[i].flags &= ~SPA_PARAM_INFO_READ;
port->params[i].user++;
}
} else {
impl->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
for (i = 0; i < N_NODE_PARAMS; i++) {
impl->params[i].flags &= ~SPA_PARAM_INFO_READ;
impl->params[i].user++;
}
}
} else {
if (port) {
if ((idx = get_port_param_index(id)) != -1) {
port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS;
port->params[idx].flags &= ~SPA_PARAM_INFO_READ;
port->params[idx].user++;
}
} else {
if ((idx = get_param_index(id)) != -1) {
impl->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
impl->params[idx].flags &= ~SPA_PARAM_INFO_READ;
impl->params[idx].user++;
}
}
}
}
}
static struct port *alloc_port(struct filter *filter,
@ -434,12 +469,19 @@ static int impl_enum_params(void *object, int seq, uint32_t id, uint32_t start,
return enum_params(impl, &impl->param_list, seq, id, start, num, filter);
}
static inline void emit_param_changed(struct filter *impl, void *port,
uint32_t id, const struct spa_pod *param)
{
struct pw_filter *filter = &impl->this;
if (impl->in_emit_param_changed++ == 0)
pw_filter_emit_param_changed(filter, port, id, param);
impl->in_emit_param_changed--;
}
static int impl_set_param(void *object, uint32_t id, uint32_t flags, const struct spa_pod *param)
{
struct filter *impl = object;
struct pw_filter *filter = &impl->this;
pw_filter_emit_param_changed(filter, NULL, id, param);
emit_param_changed(impl, NULL, id, param);
return 0;
}
@ -777,7 +819,6 @@ static int default_latency(struct filter *impl, struct port *port, enum spa_dire
static int handle_latency(struct filter *impl, struct port *port, const struct spa_pod *param)
{
struct pw_filter *filter = &impl->this;
struct spa_latency_info info;
int res;
@ -797,7 +838,7 @@ static int handle_latency(struct filter *impl, struct port *port, const struct s
return 0;
if (SPA_FLAG_IS_SET(impl->flags, PW_FILTER_FLAG_CUSTOM_LATENCY)) {
pw_filter_emit_param_changed(filter, port->user_data,
emit_param_changed(impl, port->user_data,
SPA_PARAM_Latency, param);
} else {
default_latency(impl, port, info.direction);
@ -849,7 +890,7 @@ static int impl_port_set_param(void *object,
}
if (emit)
pw_filter_emit_param_changed(filter, port->user_data, id, param);
emit_param_changed(impl, port->user_data, id, param);
if (filter->state == PW_FILTER_STATE_ERROR)
return filter->error_res;

43
src/pipewire/stream.c
View file

@ -158,6 +158,7 @@ struct stream {
unsigned int using_trigger:1;
unsigned int trigger:1;
int in_set_param;
int in_emit_param_changed;
};
static int get_param_index(uint32_t id)
@ -268,14 +269,42 @@ static struct param *add_param(struct stream *impl,
static void clear_params(struct stream *impl, uint32_t id)
{
struct param *p, *t;
bool found = false;
int i, idx;
spa_list_for_each_safe(p, t, &impl->param_list, link) {
if (id == SPA_ID_INVALID ||
(p->id == id && !(p->flags & PARAM_FLAG_LOCKED))) {
found = true;
spa_list_remove(&p->link);
free(p);
}
}
if (found) {
if (id == SPA_ID_INVALID) {
impl->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
for (i = 0; i < N_NODE_PARAMS; i++) {
impl->params[i].flags &= ~SPA_PARAM_INFO_READ;
impl->params[i].user++;
}
impl->port_info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS;
for (i = 0; i < N_PORT_PARAMS; i++) {
impl->port_params[i].flags &= ~SPA_PARAM_INFO_READ;
impl->port_params[i].user++;
}
} else {
if ((idx = get_param_index(id)) != -1) {
impl->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
impl->params[idx].flags &= ~SPA_PARAM_INFO_READ;
impl->params[idx].user++;
}
if ((idx = get_port_param_index(id)) != -1) {
impl->port_info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS;
impl->port_params[idx].flags &= ~SPA_PARAM_INFO_READ;
impl->port_params[idx].user++;
}
}
}
}
static int update_params(struct stream *impl, uint32_t id,
@ -563,16 +592,24 @@ static int impl_enum_params(void *object, int seq, uint32_t id, uint32_t start,
return enum_params(object, false, seq, id, start, num, filter);
}
static inline void emit_param_changed(struct stream *impl,
uint32_t id, const struct spa_pod *param)
{
struct pw_stream *stream = &impl->this;
if (impl->in_emit_param_changed++ == 0)
pw_stream_emit_param_changed(stream, id, param);
impl->in_emit_param_changed--;
}
static int impl_set_param(void *object, uint32_t id, uint32_t flags, const struct spa_pod *param)
{
struct stream *impl = object;
struct pw_stream *stream = &impl->this;
if (id != SPA_PARAM_Props)
return -ENOTSUP;
if (impl->in_set_param == 0)
pw_stream_emit_param_changed(stream, id, param);
emit_param_changed(impl, id, param);
return 0;
}
@ -885,7 +922,7 @@ static int impl_port_set_param(void *object,
break;
}
pw_stream_emit_param_changed(stream, id, param);
emit_param_changed(impl, id, param);
if (stream->state == PW_STREAM_STATE_ERROR)
return stream->error_res;