X-Git-Url: https://code.delx.au/pulseaudio/blobdiff_plain/963da3de93ed814e23e3e3dc3bca6339af80f960..7ac850d3b7ce803044b58a357b4e27730cf53bc7:/src/pulsecore/source.c

diff --git a/src/pulsecore/source.c b/src/pulsecore/source.c
index 32938127..5c1847e1 100644
--- a/src/pulsecore/source.c
+++ b/src/pulsecore/source.c
@@ -73,7 +73,7 @@ pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data) {
 
     pa_zero(*data);
     data->proplist = pa_proplist_new();
-    data->ports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
+    data->ports = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) pa_device_port_unref);
 
     return data;
 }
@@ -133,7 +133,7 @@ void pa_source_new_data_done(pa_source_new_data *data) {
     pa_proplist_free(data->proplist);
 
     if (data->ports)
-        pa_hashmap_free(data->ports, (pa_free_cb_t) pa_device_port_unref);
+        pa_hashmap_free(data->ports);
 
     pa_xfree(data->name);
     pa_xfree(data->active_port);
@@ -218,10 +218,16 @@ pa_source* pa_source_new(
     if (data->card)
         pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
 
-    pa_device_init_description(data->proplist);
+    pa_device_init_description(data->proplist, data->card);
     pa_device_init_icon(data->proplist, false);
     pa_device_init_intended_roles(data->proplist);
 
+    if (!data->active_port) {
+        pa_device_port *p = pa_device_port_find_best(data->ports);
+        if (p)
+            pa_source_new_data_set_port(data, p->name);
+    }
+
     if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
         pa_xfree(s);
         pa_namereg_unregister(core, name);
@@ -288,14 +294,10 @@ pa_source* pa_source_new(
         if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
             s->save_port = data->save_port;
 
-    if (!s->active_port) {
-        void *state;
-        pa_device_port *p;
-
-        PA_HASHMAP_FOREACH(p, s->ports, state)
-            if (!s->active_port || p->priority > s->active_port->priority)
-                s->active_port = p;
-    }
+    /* Hopefully the active port has already been assigned in the previous call
+       to pa_device_port_find_best, but better safe than sorry */
+    if (!s->active_port)
+        s->active_port = pa_device_port_find_best(s->ports);
 
     if (s->active_port)
         s->latency_offset = s->active_port->latency_offset;
@@ -313,7 +315,8 @@ pa_source* pa_source_new(
             0);
 
     s->thread_info.rtpoll = NULL;
-    s->thread_info.outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
+    s->thread_info.outputs = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
+                                                 (pa_free_cb_t) pa_source_output_unref);
     s->thread_info.soft_volume = s->soft_volume;
     s->thread_info.soft_muted = s->muted;
     s->thread_info.state = s->state;
@@ -660,7 +663,7 @@ static void source_free(pa_object *o) {
     pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
 
     pa_idxset_free(s->outputs, NULL);
-    pa_hashmap_free(s->thread_info.outputs, (pa_free_cb_t) pa_source_output_unref);
+    pa_hashmap_free(s->thread_info.outputs);
 
     if (s->silence.memblock)
         pa_memblock_unref(s->silence.memblock);
@@ -672,7 +675,7 @@ static void source_free(pa_object *o) {
         pa_proplist_free(s->proplist);
 
     if (s->ports)
-        pa_hashmap_free(s->ports, (pa_free_cb_t) pa_device_port_unref);
+        pa_hashmap_free(s->ports);
 
     pa_xfree(s);
 }
@@ -967,32 +970,39 @@ void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *
 }
 
 /* Called from main thread */
-bool pa_source_update_rate(pa_source *s, uint32_t rate, bool passthrough) {
-    bool ret = false;
+int pa_source_update_rate(pa_source *s, uint32_t rate, bool passthrough) {
+    int ret;
     uint32_t desired_rate = rate;
     uint32_t default_rate = s->default_sample_rate;
     uint32_t alternate_rate = s->alternate_sample_rate;
-    uint32_t idx;
-    pa_source_output *o;
     bool use_alternate = false;
 
-    if (!s->update_rate)
-        return false;
+    if (rate == s->sample_spec.rate)
+        return 0;
+
+    if (!s->update_rate && !s->monitor_of)
+        return -1;
 
     if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough)) {
         pa_log_debug("Default and alternate sample rates are the same.");
-        return false;
+        return -1;
     }
 
     if (PA_SOURCE_IS_RUNNING(s->state)) {
         pa_log_info("Cannot update rate, SOURCE_IS_RUNNING, will keep using %u Hz",
                     s->sample_spec.rate);
-        return false;
+        return -1;
     }
 
-    if (PA_UNLIKELY (desired_rate < 8000 ||
-                     desired_rate > PA_RATE_MAX))
-        return false;
+    if (s->monitor_of) {
+        if (PA_SINK_IS_RUNNING(s->monitor_of->state)) {
+            pa_log_info("Cannot update rate, this is a monitor source and the sink is running.");
+            return -1;
+        }
+    }
+
+    if (PA_UNLIKELY(!pa_sample_rate_valid(desired_rate)))
+        return -1;
 
     if (!passthrough) {
         pa_assert((default_rate % 4000 == 0) || (default_rate % 11025 == 0));
@@ -1016,22 +1026,55 @@ bool pa_source_update_rate(pa_source *s, uint32_t rate, bool passthrough) {
     }
 
     if (desired_rate == s->sample_spec.rate)
-        return false;
+        return -1;
 
     if (!passthrough && pa_source_used_by(s) > 0)
-        return false;
+        return -1;
 
     pa_log_debug("Suspending source %s due to changing the sample rate.", s->name);
     pa_source_suspend(s, true, PA_SUSPEND_INTERNAL);
 
-    if (s->update_rate(s, desired_rate) == true) {
-        pa_log_info("Changed sampling rate successfully ");
+    if (s->update_rate)
+        ret = s->update_rate(s, desired_rate);
+    else {
+        /* This is a monitor source. */
+
+        /* XXX: This code is written with non-passthrough streams in mind. I
+         * have no idea whether the behaviour with passthrough streams is
+         * sensible. */
+        if (!passthrough) {
+            uint32_t old_rate = s->sample_spec.rate;
+
+            s->sample_spec.rate = desired_rate;
+            ret = pa_sink_update_rate(s->monitor_of, desired_rate, false);
+
+            if (ret < 0) {
+                /* Changing the sink rate failed, roll back the old rate for
+                 * the monitor source. Why did we set the source rate before
+                 * calling pa_sink_update_rate(), you may ask. The reason is
+                 * that pa_sink_update_rate() tries to update the monitor
+                 * source rate, but we are already in the process of updating
+                 * the monitor source rate, so there's a risk of entering an
+                 * infinite loop. Setting the source rate before calling
+                 * pa_sink_update_rate() makes the rate == s->sample_spec.rate
+                 * check in the beginning of this function return early, so we
+                 * avoid looping. */
+                s->sample_spec.rate = old_rate;
+            }
+        } else
+            ret = -1;
+    }
+
+    if (ret >= 0) {
+        uint32_t idx;
+        pa_source_output *o;
 
         PA_IDXSET_FOREACH(o, s->outputs, idx) {
             if (o->state == PA_SOURCE_OUTPUT_CORKED)
                 pa_source_output_update_rate(o);
         }
-        ret = true;
+
+        pa_log_info("Changed sampling rate successfully");
     }
 
     pa_source_suspend(s, false, PA_SUSPEND_INTERNAL);
@@ -1386,20 +1429,13 @@ static void update_real_volume(pa_source *s, const pa_cvolume *new_volume, pa_ch
     PA_IDXSET_FOREACH(o, s->outputs, idx) {
         if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
             if (pa_source_flat_volume_enabled(s)) {
-                pa_cvolume old_volume = o->volume;
+                pa_cvolume new_output_volume;
 
                 /* Follow the root source's real volume. */
-                o->volume = *new_volume;
-                pa_cvolume_remap(&o->volume, channel_map, &o->channel_map);
+                new_output_volume = *new_volume;
+                pa_cvolume_remap(&new_output_volume, channel_map, &o->channel_map);
+                pa_source_output_set_volume_direct(o, &new_output_volume);
                 compute_reference_ratio(o);
-
-                /* The volume changed, let's tell people so */
-                if (!pa_cvolume_equal(&old_volume, &o->volume)) {
-                    if (o->volume_changed)
-                        o->volume_changed(o);
-
-                    pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
-                }
             }
 
             update_real_volume(o->destination_source, new_volume, channel_map);
@@ -1454,7 +1490,7 @@ static void propagate_reference_volume(pa_source *s) {
      * source output volumes accordingly */
 
     PA_IDXSET_FOREACH(o, s->outputs, idx) {
-        pa_cvolume old_volume;
+        pa_cvolume new_volume;
 
         if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
             propagate_reference_volume(o->destination_source);
@@ -1465,24 +1501,14 @@ static void propagate_reference_volume(pa_source *s) {
             continue;
         }
 
-        old_volume = o->volume;
-
         /* This basically calculates:
          *
          * o->volume := o->reference_volume * o->reference_ratio  */
 
-        o->volume = s->reference_volume;
-        pa_cvolume_remap(&o->volume, &s->channel_map, &o->channel_map);
-        pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
-
-        /* The volume changed, let's tell people so */
-        if (!pa_cvolume_equal(&old_volume, &o->volume)) {
-
-            if (o->volume_changed)
-                o->volume_changed(o);
-
-            pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
-        }
+        new_volume = s->reference_volume;
+        pa_cvolume_remap(&new_volume, &s->channel_map, &o->channel_map);
+        pa_sw_cvolume_multiply(&new_volume, &new_volume, &o->reference_ratio);
+        pa_source_output_set_volume_direct(o, &new_volume);
     }
 }
 
@@ -1505,13 +1531,11 @@ static bool update_reference_volume(pa_source *s, const pa_cvolume *v, const pa_
     pa_cvolume_remap(&volume, channel_map, &s->channel_map);
 
     reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
-    s->reference_volume = volume;
+    pa_source_set_reference_volume_direct(s, &volume);
 
     s->save_volume = (!reference_volume_changed && s->save_volume) || save;
 
-    if (reference_volume_changed)
-        pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
-    else if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
+    if (!reference_volume_changed && !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
         /* If the root source's volume doesn't change, then there can't be any
          * changes in the other source in the source tree either.
          *
@@ -1600,7 +1624,7 @@ void pa_source_set_volume(
 
         /* Let's 'push' the reference volume if necessary */
         pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_source->real_volume);
-        /* If the source and it's root don't have the same number of channels, we need to remap */
+        /* If the source and its root don't have the same number of channels, we need to remap */
         if (s != root_source && !pa_channel_map_equal(&s->channel_map, &root_source->channel_map))
             pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
         update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save);
@@ -1677,9 +1701,8 @@ static void propagate_real_volume(pa_source *s, const pa_cvolume *old_real_volum
     }
 
     if (pa_source_flat_volume_enabled(s)) {
-
         PA_IDXSET_FOREACH(o, s->outputs, idx) {
-            pa_cvolume old_volume = o->volume;
+            pa_cvolume new_volume;
 
             /* 2. Since the source's reference and real volumes are equal
              * now our ratios should be too. */
@@ -1693,18 +1716,10 @@ static void propagate_real_volume(pa_source *s, const pa_cvolume *old_real_volum
              * o->volume = s->reference_volume * o->reference_ratio
              *
              * This is identical to propagate_reference_volume() */
-            o->volume = s->reference_volume;
-            pa_cvolume_remap(&o->volume, &s->channel_map, &o->channel_map);
-            pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
-
-            /* Notify if something changed */
-            if (!pa_cvolume_equal(&old_volume, &o->volume)) {
-
-                if (o->volume_changed)
-                    o->volume_changed(o);
-
-                pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
-            }
+            new_volume = s->reference_volume;
+            pa_cvolume_remap(&new_volume, &s->channel_map, &o->channel_map);
+            pa_sw_cvolume_multiply(&new_volume, &new_volume, &o->reference_ratio);
+            pa_source_output_set_volume_direct(o, &new_volume);
 
             if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
                 propagate_real_volume(o->destination_source, old_real_volume);
@@ -2027,9 +2042,7 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_
                 o->thread_info.direct_on_input = NULL;
             }
 
-            if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
-                pa_source_output_unref(o);
-
+            pa_hashmap_remove_and_free(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index));
             pa_source_invalidate_requested_latency(s, true);
 
             /* In flat volume mode we need to update the volume as
@@ -2119,18 +2132,6 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_
             return 0;
         }
 
-        case PA_SOURCE_MESSAGE_DETACH:
-
-            /* Detach all streams */
-            pa_source_detach_within_thread(s);
-            return 0;
-
-        case PA_SOURCE_MESSAGE_ATTACH:
-
-            /* Reattach all streams */
-            pa_source_attach_within_thread(s);
-            return 0;
-
         case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
 
             pa_usec_t *usec = userdata;
@@ -2247,24 +2248,6 @@ int pa_source_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
     return ret;
 }
 
-/* Called from main thread */
-void pa_source_detach(pa_source *s) {
-    pa_source_assert_ref(s);
-    pa_assert_ctl_context();
-    pa_assert(PA_SOURCE_IS_LINKED(s->state));
-
-    pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_DETACH, NULL, 0, NULL) == 0);
-}
-
-/* Called from main thread */
-void pa_source_attach(pa_source *s) {
-    pa_source_assert_ref(s);
-    pa_assert_ctl_context();
-    pa_assert(PA_SOURCE_IS_LINKED(s->state));
-
-    pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
-}
-
 /* Called from IO thread */
 void pa_source_detach_within_thread(pa_source *s) {
     pa_source_output *o;
@@ -2857,3 +2840,27 @@ done:
 
     return out_formats;
 }
+
+/* Called from the main thread. */
+void pa_source_set_reference_volume_direct(pa_source *s, const pa_cvolume *volume) {
+    pa_cvolume old_volume;
+    char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
+    char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
+
+    pa_assert(s);
+    pa_assert(volume);
+
+    old_volume = s->reference_volume;
+
+    if (pa_cvolume_equal(volume, &old_volume))
+        return;
+
+    s->reference_volume = *volume;
+    pa_log_debug("The reference volume of source %s changed from %s to %s.", s->name,
+                 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
+                                            s->flags & PA_SOURCE_DECIBEL_VOLUME),
+                 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
+                                            s->flags & PA_SOURCE_DECIBEL_VOLUME));
+
+    pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
+}