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context: allow quantum up to configured max

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Clip the quantum values between absolute min and max.
If a client selected a quantum, allow this to exceed the default
quantum up to the max-quantum.
If a client doesn't select a quantum, use the default.
This commit is contained in:
Wim Taymans 2020-03-26 11:27:36 +01:00
parent 7693834a81
commit 125f1f109c
2 changed files with 12 additions and 4 deletions
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13
src/pipewire/context.c
View file

@ -43,6 +43,8 @@
#define NAME "context"
#define CLOCK_MIN_QUANTUM 4u
#define CLOCK_MAX_QUANTUM 8192u
#define DEFAULT_CLOCK_RATE 48000u
#define DEFAULT_CLOCK_QUANTUM 1024u
@ -165,14 +167,19 @@ static void fill_defaults(struct pw_context *this)
this->defaults.clock_quantum = get_default_int(p, "default.clock.quantum", DEFAULT_CLOCK_QUANTUM);
this->defaults.clock_min_quantum = get_default_int(p, "default.clock.min-quantum", DEFAULT_CLOCK_MIN_QUANTUM);
this->defaults.clock_max_quantum = get_default_int(p, "default.clock.max-quantum", DEFAULT_CLOCK_MAX_QUANTUM);
this->defaults.clock_quantum = SPA_CLAMP(this->defaults.clock_quantum,
this->defaults.clock_min_quantum, this->defaults.clock_max_quantum);
this->defaults.video_size.width = get_default_int(p, "default.video.width", DEFAULT_VIDEO_WIDTH);
this->defaults.video_size.height = get_default_int(p, "default.video.height", DEFAULT_VIDEO_HEIGHT);
this->defaults.video_rate.num = get_default_int(p, "default.video.rate.num", DEFAULT_VIDEO_RATE_NUM);
this->defaults.video_rate.denom = get_default_int(p, "default.video.rate.denom", DEFAULT_VIDEO_RATE_DENOM);
this->defaults.link_max_buffers = get_default_int(p, "link.max-buffers", DEFAULT_LINK_MAX_BUFFERS);
this->defaults.mem_allow_mlock = get_default_bool(p, "mem.allow-mlock", DEFAULT_MEM_ALLOW_MLOCK);
this->defaults.clock_max_quantum = SPA_CLAMP(this->defaults.clock_max_quantum,
CLOCK_MIN_QUANTUM, CLOCK_MAX_QUANTUM);
this->defaults.clock_min_quantum = SPA_CLAMP(this->defaults.clock_min_quantum,
CLOCK_MIN_QUANTUM, this->defaults.clock_max_quantum);
this->defaults.clock_quantum = SPA_CLAMP(this->defaults.clock_quantum,
this->defaults.clock_min_quantum, this->defaults.clock_max_quantum);
}
/** Create a new context object
@ -790,7 +797,7 @@ static int collect_nodes(struct pw_impl_node *driver)
* go to max but we should really only do this when in power save mode */
driver->quantum_current = SPA_CLAMP(quantum,
driver->context->defaults.clock_min_quantum,
driver->context->defaults.clock_quantum);
driver->context->defaults.clock_max_quantum);
return 0;
}

3
src/pipewire/impl-node.c
View file

@ -747,7 +747,8 @@ static void check_properties(struct pw_impl_node *node)
quantum_size = flp2((num * node->context->defaults.clock_rate / denom));
if (quantum_size != node->quantum_size) {
pw_log_info(NAME" %p: latency '%s' quantum %d", node, str, quantum_size);
pw_log_info(NAME" %p: latency '%s' quantum %u/%u",
node, str, quantum_size, node->context->defaults.clock_rate);
node->quantum_size = quantum_size;
do_recalc |= node->active;
}