diff options
Diffstat (limited to 'src/pulsecore/source.c')
| -rw-r--r-- | src/pulsecore/source.c | 993 |
1 files changed, 935 insertions, 58 deletions
diff --git a/src/pulsecore/source.c b/src/pulsecore/source.c index 587291ad..9c15d3f3 100644 --- a/src/pulsecore/source.c +++ b/src/pulsecore/source.c @@ -32,6 +32,7 @@ #include <pulse/xmalloc.h> #include <pulse/timeval.h> #include <pulse/util.h> +#include <pulse/rtclock.h> #include <pulse/internal.h> #include <pulsecore/core-util.h> @@ -40,6 +41,7 @@ #include <pulsecore/core-subscribe.h> #include <pulsecore/log.h> #include <pulsecore/sample-util.h> +#include <pulsecore/flist.h> #include "source.h" @@ -49,8 +51,23 @@ PA_DEFINE_PUBLIC_CLASS(pa_source, pa_msgobject); +struct pa_source_volume_change { + pa_usec_t at; + pa_cvolume hw_volume; + + PA_LLIST_FIELDS(pa_source_volume_change); +}; + +struct source_message_set_port { + pa_device_port *port; + int ret; +}; + static void source_free(pa_object *o); +static void pa_source_volume_change_push(pa_source *s); +static void pa_source_volume_change_flush(pa_source *s); + pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data) { pa_assert(data); @@ -179,8 +196,14 @@ pa_source* pa_source_new( pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map)); pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels); - if (!data->volume_is_set) + /* FIXME: There should probably be a general function for checking whether + * the source volume is allowed to be set, like there is for source outputs. */ + pa_assert(!data->volume_is_set || !(flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)); + + if (!data->volume_is_set) { pa_cvolume_reset(&data->volume, data->sample_spec.channels); + data->save_volume = FALSE; + } pa_return_null_if_fail(pa_cvolume_valid(&data->volume)); pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec)); @@ -225,7 +248,7 @@ pa_source* pa_source_new( s->monitor_of = NULL; s->output_from_master = NULL; - s->volume = data->volume; + s->reference_volume = s->real_volume = data->volume; pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels); s->base_volume = PA_VOLUME_NORM; s->n_volume_steps = PA_VOLUME_NORM+1; @@ -280,6 +303,13 @@ pa_source* pa_source_new( s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY; s->thread_info.fixed_latency = flags & PA_SOURCE_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY; + PA_LLIST_HEAD_INIT(pa_source_volume_change, s->thread_info.volume_changes); + s->thread_info.volume_changes_tail = NULL; + pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume); + s->thread_info.volume_change_safety_margin = core->sync_volume_safety_margin_usec; + s->thread_info.volume_change_extra_delay = core->sync_volume_extra_delay_usec; + + /* FIXME: This should probably be moved to pa_source_put() */ pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0); if (s->card) @@ -358,24 +388,59 @@ void pa_source_put(pa_source *s) { pa_assert_ctl_context(); pa_assert(s->state == PA_SOURCE_INIT); + pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || s->output_from_master); /* The following fields must be initialized properly when calling _put() */ pa_assert(s->asyncmsgq); pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency); - /* Generally, flags should be initialized via pa_source_new(). As - * a special exception we allow volume related flags to be set + /* Generally, flags should be initialized via pa_source_new(). As a + * special exception we allow volume related flags to be set * between _new() and _put(). */ - if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL)) + /* XXX: Currently decibel volume is disabled for all sources that use volume + * sharing. When the master source supports decibel volume, it would be good + * to have the flag also in the filter source, but currently we don't do that + * so that the flags of the filter source never change when it's moved from + * a master source to another. One solution for this problem would be to + * remove user-visible volume altogether from filter sources when volume + * sharing is used, but the current approach was easier to implement... */ + if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL) && !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) s->flags |= PA_SOURCE_DECIBEL_VOLUME; + if ((s->flags & PA_SOURCE_DECIBEL_VOLUME) && s->core->flat_volumes) + s->flags |= PA_SOURCE_FLAT_VOLUME; + + if (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) { + pa_source *root_source = s->output_from_master->source; + + while (root_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) + root_source = root_source->output_from_master->source; + + s->reference_volume = root_source->reference_volume; + pa_cvolume_remap(&s->reference_volume, &root_source->channel_map, &s->channel_map); + + s->real_volume = root_source->real_volume; + pa_cvolume_remap(&s->real_volume, &root_source->channel_map, &s->channel_map); + } else + /* We assume that if the sink implementor changed the default + * volume he did so in real_volume, because that is the usual + * place where he is supposed to place his changes. */ + s->reference_volume = s->real_volume; + s->thread_info.soft_volume = s->soft_volume; s->thread_info.soft_muted = s->muted; + pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume); - pa_assert((s->flags & PA_SOURCE_HW_VOLUME_CTRL) || (s->base_volume == PA_VOLUME_NORM && s->flags & PA_SOURCE_DECIBEL_VOLUME)); + pa_assert((s->flags & PA_SOURCE_HW_VOLUME_CTRL) + || (s->base_volume == PA_VOLUME_NORM + && ((s->flags & PA_SOURCE_DECIBEL_VOLUME || (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))))); pa_assert(!(s->flags & PA_SOURCE_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1); pa_assert(!(s->flags & PA_SOURCE_DYNAMIC_LATENCY) == (s->thread_info.fixed_latency != 0)); + pa_assert(!(s->flags & PA_SOURCE_HW_VOLUME_CTRL) || s->set_volume); + pa_assert(!(s->flags & PA_SOURCE_SYNC_VOLUME) || (s->flags & PA_SOURCE_HW_VOLUME_CTRL)); + pa_assert(!(s->flags & PA_SOURCE_SYNC_VOLUME) || s->write_volume); + pa_assert(!(s->flags & PA_SOURCE_HW_MUTE_CTRL) || s->set_mute); pa_assert_se(source_set_state(s, PA_SOURCE_IDLE) == 0); @@ -529,7 +594,7 @@ int pa_source_suspend(pa_source *s, pa_bool_t suspend, pa_suspend_cause_t cause) pa_log_debug("Suspend cause of source %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming"); - if (suspend) + if (s->suspend_cause) return source_set_state(s, PA_SOURCE_SUSPENDED); else return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE); @@ -748,7 +813,7 @@ pa_usec_t pa_source_get_latency_within_thread(pa_source *s) { o = PA_MSGOBJECT(s); - /* We probably should make this a proper vtable callback instead of going through process_msg() */ + /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */ if (o->process_msg(o, PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0) return -1; @@ -756,6 +821,21 @@ pa_usec_t pa_source_get_latency_within_thread(pa_source *s) { return usec; } +/* Called from the main thread (and also from the IO thread while the main + * thread is waiting). + * + * When a source uses volume sharing, it never has the PA_SOURCE_FLAT_VOLUME flag + * set. Instead, flat volume mode is detected by checking whether the root source + * has the flag set. */ +pa_bool_t pa_source_flat_volume_enabled(pa_source *s) { + pa_source_assert_ref(s); + + while (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) + s = s->output_from_master->source; + + return (s->flags & PA_SOURCE_FLAT_VOLUME); +} + /* Called from main context */ pa_bool_t pa_source_is_passthrough(pa_source *s) { @@ -765,59 +845,569 @@ pa_bool_t pa_source_is_passthrough(pa_source *s) { return (s->monitor_of && pa_sink_is_passthrough(s->monitor_of)); } +/* Called from main context. */ +static void compute_reference_ratio(pa_source_output *o) { + unsigned c = 0; + pa_cvolume remapped; + + pa_assert(o); + pa_assert(pa_source_flat_volume_enabled(o->source)); + + /* + * Calculates the reference ratio from the source's reference + * volume. This basically calculates: + * + * o->reference_ratio = o->volume / o->source->reference_volume + */ + + remapped = o->source->reference_volume; + pa_cvolume_remap(&remapped, &o->source->channel_map, &o->channel_map); + + o->reference_ratio.channels = o->sample_spec.channels; + + for (c = 0; c < o->sample_spec.channels; c++) { + + /* We don't update when the source volume is 0 anyway */ + if (remapped.values[c] <= PA_VOLUME_MUTED) + continue; + + /* Don't update the reference ratio unless necessary */ + if (pa_sw_volume_multiply( + o->reference_ratio.values[c], + remapped.values[c]) == o->volume.values[c]) + continue; + + o->reference_ratio.values[c] = pa_sw_volume_divide( + o->volume.values[c], + remapped.values[c]); + } +} + +/* Called from main context. Only called for the root source in volume sharing + * cases, except for internal recursive calls. */ +static void compute_reference_ratios(pa_source *s) { + uint32_t idx; + pa_source_output *o; + + pa_source_assert_ref(s); + pa_assert_ctl_context(); + pa_assert(PA_SOURCE_IS_LINKED(s->state)); + pa_assert(pa_source_flat_volume_enabled(s)); + + PA_IDXSET_FOREACH(o, s->outputs, idx) { + compute_reference_ratio(o); + + if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) + compute_reference_ratios(o->destination_source); + } +} + +/* Called from main context. Only called for the root source in volume sharing + * cases, except for internal recursive calls. */ +static void compute_real_ratios(pa_source *s) { + pa_source_output *o; + uint32_t idx; + + pa_source_assert_ref(s); + pa_assert_ctl_context(); + pa_assert(PA_SOURCE_IS_LINKED(s->state)); + pa_assert(pa_source_flat_volume_enabled(s)); + + PA_IDXSET_FOREACH(o, s->outputs, idx) { + unsigned c; + pa_cvolume remapped; + + if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) { + /* The origin source uses volume sharing, so this input's real ratio + * is handled as a special case - the real ratio must be 0 dB, and + * as a result i->soft_volume must equal i->volume_factor. */ + pa_cvolume_reset(&o->real_ratio, o->real_ratio.channels); + o->soft_volume = o->volume_factor; + + compute_real_ratios(o->destination_source); + + continue; + } + + /* + * This basically calculates: + * + * i->real_ratio := i->volume / s->real_volume + * i->soft_volume := i->real_ratio * i->volume_factor + */ + + remapped = s->real_volume; + pa_cvolume_remap(&remapped, &s->channel_map, &o->channel_map); + + o->real_ratio.channels = o->sample_spec.channels; + o->soft_volume.channels = o->sample_spec.channels; + + for (c = 0; c < o->sample_spec.channels; c++) { + + if (remapped.values[c] <= PA_VOLUME_MUTED) { + /* We leave o->real_ratio untouched */ + o->soft_volume.values[c] = PA_VOLUME_MUTED; + continue; + } + + /* Don't lose accuracy unless necessary */ + if (pa_sw_volume_multiply( + o->real_ratio.values[c], + remapped.values[c]) != o->volume.values[c]) + + o->real_ratio.values[c] = pa_sw_volume_divide( + o->volume.values[c], + remapped.values[c]); + + o->soft_volume.values[c] = pa_sw_volume_multiply( + o->real_ratio.values[c], + o->volume_factor.values[c]); + } + + /* We don't copy the soft_volume to the thread_info data + * here. That must be done by the caller */ + } +} + +static pa_cvolume *cvolume_remap_minimal_impact( + pa_cvolume *v, + const pa_cvolume *template, + const pa_channel_map *from, + const pa_channel_map *to) { + + pa_cvolume t; + + pa_assert(v); + pa_assert(template); + pa_assert(from); + pa_assert(to); + pa_assert(pa_cvolume_compatible_with_channel_map(v, from)); + pa_assert(pa_cvolume_compatible_with_channel_map(template, to)); + + /* Much like pa_cvolume_remap(), but tries to minimize impact when + * mapping from source output to source volumes: + * + * If template is a possible remapping from v it is used instead + * of remapping anew. + * + * If the channel maps don't match we set an all-channel volume on + * the source to ensure that changing a volume on one stream has no + * effect that cannot be compensated for in another stream that + * does not have the same channel map as the source. */ + + if (pa_channel_map_equal(from, to)) + return v; + + t = *template; + if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) { + *v = *template; + return v; + } + + pa_cvolume_set(v, to->channels, pa_cvolume_max(v)); + return v; +} + +/* Called from main thread. Only called for the root source in volume sharing + * cases, except for internal recursive calls. */ +static void get_maximum_output_volume(pa_source *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) { + pa_source_output *o; + uint32_t idx; + + pa_source_assert_ref(s); + pa_assert(max_volume); + pa_assert(channel_map); + pa_assert(pa_source_flat_volume_enabled(s)); + + PA_IDXSET_FOREACH(o, s->outputs, idx) { + pa_cvolume remapped; + + if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) { + get_maximum_output_volume(o->destination_source, max_volume, channel_map); + + /* Ignore this output. The origin source uses volume sharing, so this + * output's volume will be set to be equal to the root source's real + * volume. Obviously this outputs's current volume must not then + * affect what the root source's real volume will be. */ + continue; + } + + remapped = o->volume; + cvolume_remap_minimal_impact(&remapped, max_volume, &o->channel_map, channel_map); + pa_cvolume_merge(max_volume, max_volume, &remapped); + } +} + +/* Called from main thread. Only called for the root source in volume sharing + * cases, except for internal recursive calls. */ +static pa_bool_t has_outputs(pa_source *s) { + pa_source_output *o; + uint32_t idx; + + pa_source_assert_ref(s); + + PA_IDXSET_FOREACH(o, s->outputs, idx) { + if (!o->destination_source || !(o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || has_outputs(o->destination_source)) + return TRUE; + } + + return FALSE; +} + +/* Called from main thread. Only called for the root source in volume sharing + * cases, except for internal recursive calls. */ +static void update_real_volume(pa_source *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) { + pa_source_output *o; + uint32_t idx; + + pa_source_assert_ref(s); + pa_assert(new_volume); + pa_assert(channel_map); + + s->real_volume = *new_volume; + pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map); + + 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; + + /* Follow the root source's real volume. */ + o->volume = *new_volume; + pa_cvolume_remap(&o->volume, channel_map, &o->channel_map); + 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); + } + } +} + +/* Called from main thread. Only called for the root source in shared volume + * cases. */ +static void compute_real_volume(pa_source *s) { + pa_source_assert_ref(s); + pa_assert_ctl_context(); + pa_assert(PA_SOURCE_IS_LINKED(s->state)); + pa_assert(pa_source_flat_volume_enabled(s)); + pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)); + + /* This determines the maximum volume of all streams and sets + * s->real_volume accordingly. */ + + if (!has_outputs(s)) { + /* In the special case that we have no source outputs we leave the + * volume unmodified. */ + update_real_volume(s, &s->reference_volume, &s->channel_map); + return; + } + + pa_cvolume_mute(&s->real_volume, s->channel_map.channels); + + /* First let's determine the new maximum volume of all outputs + * connected to this source */ + get_maximum_output_volume(s, &s->real_volume, &s->channel_map); + update_real_volume(s, &s->real_volume, &s->channel_map); + + /* Then, let's update the real ratios/soft volumes of all outputs + * connected to this source */ + compute_real_ratios(s); +} + +/* Called from main thread. Only called for the root source in shared volume + * cases, except for internal recursive calls. */ +static void propagate_reference_volume(pa_source *s) { + pa_source_output *o; + uint32_t idx; + + pa_source_assert_ref(s); + pa_assert_ctl_context(); + pa_assert(PA_SOURCE_IS_LINKED(s->state)); + pa_assert(pa_source_flat_volume_enabled(s)); + + /* This is called whenever the source volume changes that is not + * caused by a source output volume change. We need to fix up the + * source output volumes accordingly */ + + PA_IDXSET_FOREACH(o, s->outputs, idx) { + pa_cvolume old_volume; + + if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) { + propagate_reference_volume(o->destination_source); + + /* Since the origin source uses volume sharing, this output's volume + * needs to be updated to match the root source's real volume, but + * that will be done later in update_shared_real_volume(). */ + 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); + } + } +} + +/* Called from main thread. Only called for the root source in volume sharing + * cases, except for internal recursive calls. The return value indicates + * whether any reference volume actually changed. */ +static pa_bool_t update_reference_volume(pa_source *s, const pa_cvolume *v, const pa_channel_map *channel_map, pa_bool_t save) { + pa_cvolume volume; + pa_bool_t reference_volume_changed; + pa_source_output *o; + uint32_t idx; + + pa_source_assert_ref(s); + pa_assert(PA_SOURCE_IS_LINKED(s->state)); + pa_assert(v); + pa_assert(channel_map); + pa_assert(pa_cvolume_valid(v)); + + volume = *v; + pa_cvolume_remap(&volume, channel_map, &s->channel_map); + + reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume); + s->reference_volume = 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 the root source's volume doesn't change, then there can't be any + * changes in the other source in the source tree either. + * + * It's probably theoretically possible that even if the root source's + * volume changes slightly, some filter source doesn't change its volume + * due to rounding errors. If that happens, we still want to propagate + * the changed root source volume to the sources connected to the + * intermediate source that didn't change its volume. This theoretical + * possiblity is the reason why we have that !(s->flags & + * PA_SOURCE_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would + * notice even if we returned here FALSE always if + * reference_volume_changed is FALSE. */ + return FALSE; + + PA_IDXSET_FOREACH(o, s->outputs, idx) { + if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) + update_reference_volume(o->destination_source, v, channel_map, FALSE); + } + + return TRUE; +} + /* Called from main thread */ void pa_source_set_volume( pa_source *s, const pa_cvolume *volume, + pa_bool_t send_msg, pa_bool_t save) { - pa_bool_t real_changed; - pa_cvolume old_volume; + pa_cvolume new_reference_volume; + pa_source *root_source = s; pa_source_assert_ref(s); pa_assert_ctl_context(); pa_assert(PA_SOURCE_IS_LINKED(s->state)); - pa_assert(pa_cvolume_valid(volume)); - pa_assert(volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec)); + pa_assert(!volume || pa_cvolume_valid(volume)); + pa_assert(volume || pa_source_flat_volume_enabled(s)); + pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec)); + + /* make sure we don't change the volume when a PASSTHROUGH output is connected */ + if (pa_source_is_passthrough(s)) { + /* FIXME: Need to notify client that volume control is disabled */ + pa_log_warn("Cannot change volume, Source is monitor of a PASSTHROUGH sink"); + return; + } - old_volume = s->volume; + /* In case of volume sharing, the volume is set for the root source first, + * from which it's then propagated to the sharing sources. */ + while (root_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) + root_source = root_source->output_from_master->source; - if (pa_cvolume_compatible(volume, &s->sample_spec)) - s->volume = *volume; - else - pa_cvolume_scale(&s->volume, pa_cvolume_max(volume)); + /* As a special exception we accept mono volumes on all sources -- + * even on those with more complex channel maps */ - real_changed = !pa_cvolume_equal(&old_volume, &s->volume); - s->save_volume = (!real_changed && s->save_volume) || save; + if (volume) { + if (pa_cvolume_compatible(volume, &s->sample_spec)) + new_reference_volume = *volume; + else { + new_reference_volume = s->reference_volume; + pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume)); + } - if (s->set_volume) { - pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels); - s->set_volume(s); - } else - s->soft_volume = s->volume; + pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map); + } - pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0); + /* If volume is NULL we synchronize the source's real and reference + * volumes with the stream volumes. If it is not NULL we update + * the reference_volume with it. */ - if (real_changed) - pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index); + if (volume) { + if (update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save)) { + if (pa_source_flat_volume_enabled(root_source)) { + /* OK, propagate this volume change back to the outputs */ + propagate_reference_volume(root_source); + + /* And now recalculate the real volume */ + compute_real_volume(root_source); + } else + update_real_volume(root_source, &root_source->reference_volume, &root_source->channel_map); + } + + } else { + pa_assert(pa_source_flat_volume_enabled(root_source)); + + /* Ok, let's determine the new real volume */ + compute_real_volume(root_source); + + /* Let's 'push' the reference volume if necessary */ + pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_source->real_volume); + update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save); + + /* Now that the reference volume is updated, we can update the streams' + * reference ratios. */ + compute_reference_ratios(root_source); + } + + if (root_source->set_volume) { + /* If we have a function set_volume(), then we do not apply a + * soft volume by default. However, set_volume() is free to + * apply one to root_source->soft_volume */ + + pa_cvolume_reset(&root_source->soft_volume, root_source->sample_spec.channels); + if (!(root_source->flags & PA_SOURCE_SYNC_VOLUME)) + root_source->set_volume(root_source); + + } else + /* If we have no function set_volume(), then the soft volume + * becomes the real volume */ + root_source->soft_volume = root_source->real_volume; + + /* This tells the source that soft volume and/or real volume changed */ + if (send_msg) + pa_assert_se(pa_asyncmsgq_send(root_source->asyncmsgq, PA_MSGOBJECT(root_source), PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0); } -/* Called from main thread. Only to be called by source implementor */ +/* Called from the io thread if sync volume is used, otherwise from the main thread. + * Only to be called by source implementor */ void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) { + pa_source_assert_ref(s); - pa_assert_ctl_context(); + pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)); + + if (s->flags & PA_SOURCE_SYNC_VOLUME) + pa_source_assert_io_context(s); + else + pa_assert_ctl_context(); if (!volume) pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels); else s->soft_volume = *volume; - if (PA_SOURCE_IS_LINKED(s->state)) + if (PA_SOURCE_IS_LINKED(s->state) && !(s->flags & PA_SOURCE_SYNC_VOLUME)) pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0); else s->thread_info.soft_volume = s->soft_volume; } +/* Called from the main thread. Only called for the root source in volume sharing + * cases, except for internal recursive calls. */ +static void propagate_real_volume(pa_source *s, const pa_cvolume *old_real_volume) { + pa_source_output *o; + uint32_t idx; + + pa_source_assert_ref(s); + pa_assert(old_real_volume); + pa_assert_ctl_context(); + pa_assert(PA_SOURCE_IS_LINKED(s->state)); + + /* This is called when the hardware's real volume changes due to + * some external event. We copy the real volume into our + * reference volume and then rebuild the stream volumes based on + * i->real_ratio which should stay fixed. */ + + if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) { + if (pa_cvolume_equal(old_real_volume, &s->real_volume)) + return; + + /* 1. Make the real volume the reference volume */ + update_reference_volume(s, &s->real_volume, &s->channel_map, TRUE); + } + + if (pa_source_flat_volume_enabled(s)) { + + PA_IDXSET_FOREACH(o, s->outputs, idx) { + pa_cvolume old_volume = o->volume; + + /* 2. Since the source's reference and real volumes are equal + * now our ratios should be too. */ + o->reference_ratio = o->real_ratio; + + /* 3. Recalculate the new stream reference volume based on the + * reference ratio and the sink's reference volume. + * + * This basically calculates: + * + * 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); + } + + if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) + propagate_real_volume(o->destination_source, old_real_volume); + } + } + + /* Something got changed in the hardware. It probably makes sense + * to save changed hw settings given that hw volume changes not + * triggered by PA are almost certainly done by the user. */ + if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) + s->save_volume = TRUE; +} + +/* Called from io thread */ +void pa_source_update_volume_and_mute(pa_source *s) { + pa_assert(s); + pa_source_assert_io_context(s); + + pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL); +} + /* Called from main thread */ const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) { pa_source_assert_ref(s); @@ -825,39 +1415,39 @@ const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) { pa_assert(PA_SOURCE_IS_LINKED(s->state)); if (s->refresh_volume || force_refresh) { - pa_cvolume old_volume; + struct pa_cvolume old_real_volume; + + pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)); - old_volume = s->volume; + old_real_volume = s->real_volume; - if (s->get_volume) + if (!(s->flags & PA_SOURCE_SYNC_VOLUME) && s->get_volume) s->get_volume(s); pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0); - if (!pa_cvolume_equal(&old_volume, &s->volume)) { - s->save_volume = TRUE; - pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index); - } + update_real_volume(s, &s->real_volume, &s->channel_map); + propagate_real_volume(s, &old_real_volume); } - return &s->volume; + return &s->reference_volume; } -/* Called from main thread */ -void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_volume) { +/* Called from main thread. In volume sharing cases, only the root source may + * call this. */ +void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_real_volume) { + pa_cvolume old_real_volume; + pa_source_assert_ref(s); pa_assert_ctl_context(); pa_assert(PA_SOURCE_IS_LINKED(s->state)); + pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)); /* The source implementor may call this if the volume changed to make sure everyone is notified */ - if (pa_cvolume_equal(&s->volume, new_volume)) - return; - - s->volume = *new_volume; - s->save_volume = TRUE; - - pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index); + old_real_volume = s->real_volume; + update_real_volume(s, new_real_volume, &s->channel_map); + propagate_real_volume(s, &old_real_volume); } /* Called from main thread */ @@ -872,7 +1462,7 @@ void pa_source_set_mute(pa_source *s, pa_bool_t mute, pa_bool_t save) { s->muted = mute; s->save_muted = (old_muted == s->muted && s->save_muted) || save; - if (s->set_mute) + if (!(s->flags & PA_SOURCE_SYNC_VOLUME) && s->set_mute) s->set_mute(s); pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0); @@ -883,6 +1473,7 @@ void pa_source_set_mute(pa_source *s, pa_bool_t mute, pa_bool_t save) { /* Called from main thread */ pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) { + pa_source_assert_ref(s); pa_assert_ctl_context(); pa_assert(PA_SOURCE_IS_LINKED(s->state)); @@ -890,7 +1481,7 @@ pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) { if (s->refresh_muted || force_refresh) { pa_bool_t old_muted = s->muted; - if (s->get_mute) + if (!(s->flags & PA_SOURCE_SYNC_VOLUME) && s->get_mute) s->get_mute(s); pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0); @@ -970,8 +1561,8 @@ void pa_source_set_description(pa_source *s, const char *description) { /* Called from main thread */ unsigned pa_source_linked_by(pa_source *s) { pa_source_assert_ref(s); - pa_assert(PA_SOURCE_IS_LINKED(s->state)); pa_assert_ctl_context(); + pa_assert(PA_SOURCE_IS_LINKED(s->state)); return pa_idxset_size(s->outputs); } @@ -981,8 +1572,8 @@ unsigned pa_source_used_by(pa_source *s) { unsigned ret; pa_source_assert_ref(s); - pa_assert(PA_SOURCE_IS_LINKED(s->state)); pa_assert_ctl_context(); + pa_assert(PA_SOURCE_IS_LINKED(s->state)); ret = pa_idxset_size(s->outputs); pa_assert(ret >= s->n_corked); @@ -1029,6 +1620,39 @@ unsigned pa_source_check_suspend(pa_source *s) { return ret; } +/* Called from the IO thread */ +static void sync_output_volumes_within_thread(pa_source *s) { + pa_source_output *o; + void *state = NULL; + + pa_source_assert_ref(s); + pa_source_assert_io_context(s); + + PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) { + if (pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume)) + continue; + + o->thread_info.soft_volume = o->soft_volume; + //pa_source_output_request_rewind(o, 0, TRUE, FALSE, FALSE); + } +} + +/* Called from the IO thread. Only called for the root source in volume sharing + * cases, except for internal recursive calls. */ +static void set_shared_volume_within_thread(pa_source *s) { + pa_source_output *o; + void *state = NULL; + + pa_source_assert_ref(s); + + PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL); + + PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) { + if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) + set_shared_volume_within_thread(o->destination_source); + } +} + /* Called from IO thread, except when it is not */ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) { pa_source *s = PA_SOURCE(object); @@ -1041,6 +1665,22 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_ pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o)); + /* Since the caller sleeps in pa_source_output_put(), we can + * safely access data outside of thread_info even though + * it is mutable */ + + if ((o->thread_info.sync_prev = o->sync_prev)) { + pa_assert(o->source == o->thread_info.sync_prev->source); + pa_assert(o->sync_prev->sync_next == o); + o->thread_info.sync_prev->thread_info.sync_next = o; + } + + if ((o->thread_info.sync_next = o->sync_next)) { + pa_assert(o->source == o->thread_info.sync_next->source); + pa_assert(o->sync_next->sync_prev == o); + o->thread_info.sync_next->thread_info.sync_prev = o; + } + if (o->direct_on_input) { o->thread_info.direct_on_input = o->direct_on_input; pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o); @@ -1064,7 +1704,9 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_ * requested latency. */ pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency); - return 0; + /* In flat volume mode we need to update the volume as + * well */ + return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL); } case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: { @@ -1078,6 +1720,23 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_ pa_assert(o->thread_info.attached); o->thread_info.attached = FALSE; + /* Since the caller sleeps in pa_sink_input_unlink(), + * we can safely access data outside of thread_info even + * though it is mutable */ + + pa_assert(!o->sync_prev); + pa_assert(!o->sync_next); + + if (o->thread_info.sync_prev) { + o->thread_info.sync_prev->thread_info.sync_next = o->thread_info.sync_prev->sync_next; + o->thread_info.sync_prev = NULL; + } + + if (o->thread_info.sync_next) { + o->thread_info.sync_next->thread_info.sync_prev = o->thread_info.sync_next->sync_prev; + o->thread_info.sync_next = NULL; + } + if (o->thread_info.direct_on_input) { pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index)); o->thread_info.direct_on_input = NULL; @@ -1088,21 +1747,72 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_ pa_source_invalidate_requested_latency(s, TRUE); + /* In flat volume mode we need to update the volume as + * well */ + return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL); + } + + case PA_SOURCE_MESSAGE_SET_SHARED_VOLUME: { + pa_source *root_source = s; + + while (root_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) + root_source = root_source->output_from_master->source; + + set_shared_volume_within_thread(root_source); return 0; } + case PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED: + + if (s->flags & PA_SOURCE_SYNC_VOLUME) { + s->set_volume(s); + pa_source_volume_change_push(s); + } + /* Fall through ... */ + case PA_SOURCE_MESSAGE_SET_VOLUME: - s->thread_info.soft_volume = s->soft_volume; + + if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) { + s->thread_info.soft_volume = s->soft_volume; + } + + /* Fall through ... */ + + case PA_SOURCE_MESSAGE_SYNC_VOLUMES: + sync_output_volumes_within_thread(s); return 0; case PA_SOURCE_MESSAGE_GET_VOLUME: + + if ((s->flags & PA_SOURCE_SYNC_VOLUME) && s->get_volume) { + s->get_volume(s); + pa_source_volume_change_flush(s); + pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume); + } + + /* In case source implementor reset SW volume. */ + if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) { + s->thread_info.soft_volume = s->soft_volume; + } + return 0; case PA_SOURCE_MESSAGE_SET_MUTE: - s->thread_info.soft_muted = s->muted; + + if (s->thread_info.soft_muted != s->muted) { + s->thread_info.soft_muted = s->muted; + } + + if (s->flags & PA_SOURCE_SYNC_VOLUME && s->set_mute) + s->set_mute(s); + return 0; case PA_SOURCE_MESSAGE_GET_MUTE: + + if (s->flags & PA_SOURCE_SYNC_VOLUME && s->get_mute) + s->get_mute(s); + return 0; case PA_SOURCE_MESSAGE_SET_STATE: { @@ -1122,7 +1832,6 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_ o->suspend_within_thread(o, s->thread_info.state == PA_SOURCE_SUSPENDED); } - return 0; } @@ -1143,6 +1852,9 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_ pa_usec_t *usec = userdata; *usec = pa_source_get_requested_latency_within_thread(s); + /* Yes, that's right, the IO thread will see -1 when no + * explicit requested latency is configured, the main + * thread will see max_latency */ if (*usec == (pa_usec_t) -1) *usec = s->thread_info.max_latency; @@ -1196,6 +1908,23 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_ /* Implementors need to overwrite this implementation! */ return -1; + case PA_SOURCE_MESSAGE_SET_PORT: + + pa_assert(userdata); + if (s->set_port) { + struct source_message_set_port *msg_data = userdata; + msg_data->ret = s->set_port(s, msg_data->port); + } + return 0; + + case PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE: + /* This message is sent from IO-thread and handled in main thread. */ + pa_assert_ctl_context(); + + pa_source_get_volume(s, TRUE); + pa_source_get_mute(s, TRUE); + return 0; + case PA_SOURCE_MESSAGE_MAX: ; } @@ -1205,8 +1934,8 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_ /* Called from main thread */ int pa_source_suspend_all(pa_core *c, pa_bool_t suspend, pa_suspend_cause_t cause) { - uint32_t idx; pa_source *source; + uint32_t idx; int ret = 0; pa_core_assert_ref(c); @@ -1552,8 +2281,9 @@ size_t pa_source_get_max_rewind(pa_source *s) { /* Called from main context */ int pa_source_set_port(pa_source *s, const char *name, pa_bool_t save) { pa_device_port *port; + int ret; - pa_assert(s); + pa_source_assert_ref(s); pa_assert_ctl_context(); if (!s->set_port) { @@ -1572,7 +2302,15 @@ int pa_source_set_port(pa_source *s, const char *name, pa_bool_t save) { return 0; } - if ((s->set_port(s, port)) < 0) + if (s->flags & PA_SOURCE_SYNC_VOLUME) { + struct source_message_set_port msg = { .port = port, .ret = 0 }; + pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0); + ret = msg.ret; + } + else + ret = s->set_port(s, port); + + if (ret < 0) return -PA_ERR_NOENTITY; pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index); @@ -1587,6 +2325,145 @@ int pa_source_set_port(pa_source *s, const char *name, pa_bool_t save) { return 0; } +PA_STATIC_FLIST_DECLARE(pa_source_volume_change, 0, pa_xfree); + +/* Called from the IO thread. */ +static pa_source_volume_change *pa_source_volume_change_new(pa_source *s) { + pa_source_volume_change *c; + if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_source_volume_change)))) + c = pa_xnew(pa_source_volume_change, 1); + + PA_LLIST_INIT(pa_source_volume_change, c); + c->at = 0; + pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels); + return c; +} + +/* Called from the IO thread. */ +static void pa_source_volume_change_free(pa_source_volume_change *c) { + pa_assert(c); + if (pa_flist_push(PA_STATIC_FLIST_GET(pa_source_volume_change), c) < 0) + pa_xfree(c); +} + +/* Called from the IO thread. */ +void pa_source_volume_change_push(pa_source *s) { + pa_source_volume_change *c = NULL; + pa_source_volume_change *nc = NULL; + uint32_t safety_margin = s->thread_info.volume_change_safety_margin; + + const char *direction = NULL; + + pa_assert(s); + nc = pa_source_volume_change_new(s); + + /* NOTE: There is already more different volumes in pa_source that I can remember. + * Adding one more volume for HW would get us rid of this, but I am trying + * to survive with the ones we already have. */ + pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume); + + if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) { + pa_log_debug("Volume not changing"); + pa_source_volume_change_free(nc); + return; + } + + nc->at = pa_source_get_latency_within_thread(s); + nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay; + + if (s->thread_info.volume_changes_tail) { + for (c = s->thread_info.volume_changes_tail; c; c = c->prev) { + /* If volume is going up let's do it a bit late. If it is going + * down let's do it a bit early. */ + if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) { + if (nc->at + safety_margin > c->at) { + nc->at += safety_margin; + direction = "up"; + break; + } + } + else if (nc->at - safety_margin > c->at) { + nc->at -= safety_margin; + direction = "down"; + break; + } + } + } + + if (c == NULL) { + if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) { + nc->at += safety_margin; + direction = "up"; + } else { + nc->at -= safety_margin; + direction = "down"; + } + PA_LLIST_PREPEND(pa_source_volume_change, s->thread_info.volume_changes, nc); + } + else { + PA_LLIST_INSERT_AFTER(pa_source_volume_change, s->thread_info.volume_changes, c, nc); + } + + pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at); + + /* We can ignore volume events that came earlier but should happen later than this. */ + PA_LLIST_FOREACH(c, nc->next) { + pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at); + pa_source_volume_change_free(c); + } + nc->next = NULL; + s->thread_info.volume_changes_tail = nc; +} + +/* Called from the IO thread. */ +static void pa_source_volume_change_flush(pa_source *s) { + pa_source_volume_change *c = s->thread_info.volume_changes; + pa_assert(s); + s->thread_info.volume_changes = NULL; + s->thread_info.volume_changes_tail = NULL; + while (c) { + pa_source_volume_change *next = c->next; + pa_source_volume_change_free(c); + c = next; + } +} + +/* Called from the IO thread. */ +pa_bool_t pa_source_volume_change_apply(pa_source *s, pa_usec_t *usec_to_next) { + pa_usec_t now = pa_rtclock_now(); + pa_bool_t ret = FALSE; + + pa_assert(s); + pa_assert(s->write_volume); + + while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) { + pa_source_volume_change *c = s->thread_info.volume_changes; + PA_LLIST_REMOVE(pa_source_volume_change, s->thread_info.volume_changes, c); + pa_log_debug("Volume change to %d at %llu was written %llu usec late", + pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at)); + ret = TRUE; + s->thread_info.current_hw_volume = c->hw_volume; + pa_source_volume_change_free(c); + } + + if (s->write_volume && ret) + s->write_volume(s); + + if (s->thread_info.volume_changes) { + if (usec_to_next) + *usec_to_next = s->thread_info.volume_changes->at - now; + if (pa_log_ratelimit(PA_LOG_DEBUG)) + pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now)); + } + else { + if (usec_to_next) + *usec_to_next = 0; + s->thread_info.volume_changes_tail = NULL; + } + return ret; +} + + /* Called from the main thread */ /* Gets the list of formats supported by the source. The members and idxset must * be freed by the caller. */ |