#include <pulse/utf8.h>
#include <pulse/xmalloc.h>
#include <pulse/util.h>
+#include <pulse/internal.h>
-#include <pulsecore/sample-util.h>
+#include <pulsecore/core-format.h>
+#include <pulsecore/mix.h>
+#include <pulsecore/stream-util.h>
#include <pulsecore/core-subscribe.h>
#include <pulsecore/log.h>
#include <pulsecore/namereg.h>
PA_DEFINE_PUBLIC_CLASS(pa_source_output, pa_msgobject);
static void source_output_free(pa_object* mo);
+static void set_real_ratio(pa_source_output *o, const pa_cvolume *v);
pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_data *data) {
pa_assert(data);
pa_zero(*data);
data->resample_method = PA_RESAMPLER_INVALID;
data->proplist = pa_proplist_new();
+ data->volume_writable = true;
return data;
}
data->channel_map = *map;
}
+bool pa_source_output_new_data_is_passthrough(pa_source_output_new_data *data) {
+ pa_assert(data);
+
+ if (PA_LIKELY(data->format) && PA_UNLIKELY(!pa_format_info_is_pcm(data->format)))
+ return true;
+
+ if (PA_UNLIKELY(data->flags & PA_SOURCE_OUTPUT_PASSTHROUGH))
+ return true;
+
+ return false;
+}
+
+void pa_source_output_new_data_set_volume(pa_source_output_new_data *data, const pa_cvolume *volume) {
+ pa_assert(data);
+ pa_assert(data->volume_writable);
+
+ if ((data->volume_is_set = !!volume))
+ data->volume = *volume;
+}
+
+void pa_source_output_new_data_apply_volume_factor(pa_source_output_new_data *data, const pa_cvolume *volume_factor) {
+ pa_assert(data);
+ pa_assert(volume_factor);
+
+ if (data->volume_factor_is_set)
+ pa_sw_cvolume_multiply(&data->volume_factor, &data->volume_factor, volume_factor);
+ else {
+ data->volume_factor_is_set = true;
+ data->volume_factor = *volume_factor;
+ }
+}
+
+void pa_source_output_new_data_apply_volume_factor_source(pa_source_output_new_data *data, const pa_cvolume *volume_factor) {
+ pa_assert(data);
+ pa_assert(volume_factor);
+
+ if (data->volume_factor_source_is_set)
+ pa_sw_cvolume_multiply(&data->volume_factor_source, &data->volume_factor_source, volume_factor);
+ else {
+ data->volume_factor_source_is_set = true;
+ data->volume_factor_source = *volume_factor;
+ }
+}
+
+void pa_source_output_new_data_set_muted(pa_source_output_new_data *data, bool mute) {
+ pa_assert(data);
+
+ data->muted_is_set = true;
+ data->muted = !!mute;
+}
+
+bool pa_source_output_new_data_set_source(pa_source_output_new_data *data, pa_source *s, bool save) {
+ bool ret = true;
+ pa_idxset *formats = NULL;
+
+ pa_assert(data);
+ pa_assert(s);
+
+ if (!data->req_formats) {
+ /* We're not working with the extended API */
+ data->source = s;
+ data->save_source = save;
+ } else {
+ /* Extended API: let's see if this source supports the formats the client would like */
+ formats = pa_source_check_formats(s, data->req_formats);
+
+ if (formats && !pa_idxset_isempty(formats)) {
+ /* Source supports at least one of the requested formats */
+ data->source = s;
+ data->save_source = save;
+ if (data->nego_formats)
+ pa_idxset_free(data->nego_formats, (pa_free_cb_t) pa_format_info_free);
+ data->nego_formats = formats;
+ } else {
+ /* Source doesn't support any of the formats requested by the client */
+ if (formats)
+ pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
+ ret = false;
+ }
+ }
+
+ return ret;
+}
+
+bool pa_source_output_new_data_set_formats(pa_source_output_new_data *data, pa_idxset *formats) {
+ pa_assert(data);
+ pa_assert(formats);
+
+ if (data->req_formats)
+ pa_idxset_free(data->req_formats, (pa_free_cb_t) pa_format_info_free);
+
+ data->req_formats = formats;
+
+ if (data->source) {
+ /* Trigger format negotiation */
+ return pa_source_output_new_data_set_source(data, data->source, data->save_source);
+ }
+
+ return true;
+}
+
void pa_source_output_new_data_done(pa_source_output_new_data *data) {
pa_assert(data);
+ if (data->req_formats)
+ pa_idxset_free(data->req_formats, (pa_free_cb_t) pa_format_info_free);
+
+ if (data->nego_formats)
+ pa_idxset_free(data->nego_formats, (pa_free_cb_t) pa_format_info_free);
+
+ if (data->format)
+ pa_format_info_free(data->format);
+
pa_proplist_free(data->proplist);
}
o->state_change = NULL;
o->may_move_to = NULL;
o->send_event = NULL;
+ o->volume_changed = NULL;
+ o->mute_changed = NULL;
}
/* Called from main context */
pa_source_output *o;
pa_resampler *resampler = NULL;
- char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
+ char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX], fmt[PA_FORMAT_INFO_SNPRINT_MAX];
+ pa_channel_map volume_map;
int r;
+ char *pt;
pa_assert(_o);
pa_assert(core);
if (data->client)
pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
+ if (data->destination_source && (data->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
+ data->volume_writable = false;
+
+ if (!data->req_formats) {
+ /* From this point on, we want to work only with formats, and get back
+ * to using the sample spec and channel map after all decisions w.r.t.
+ * routing are complete. */
+ pa_format_info *f;
+ pa_idxset *formats;
+
+ f = pa_format_info_from_sample_spec2(&data->sample_spec, data->channel_map_is_set ? &data->channel_map : NULL,
+ !(data->flags & PA_SOURCE_OUTPUT_FIX_FORMAT),
+ !(data->flags & PA_SOURCE_OUTPUT_FIX_RATE),
+ !(data->flags & PA_SOURCE_OUTPUT_FIX_CHANNELS));
+ if (!f)
+ return -PA_ERR_INVALID;
+
+ formats = pa_idxset_new(NULL, NULL);
+ pa_idxset_put(formats, f, NULL);
+ pa_source_output_new_data_set_formats(data, formats);
+ }
+
if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], data)) < 0)
return r;
pa_return_val_if_fail(!data->driver || pa_utf8_valid(data->driver), -PA_ERR_INVALID);
if (!data->source) {
- data->source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE);
- data->save_source = FALSE;
+ pa_source *source;
+
+ if (data->direct_on_input) {
+ source = data->direct_on_input->sink->monitor_source;
+ pa_return_val_if_fail(source, -PA_ERR_INVALID);
+ } else {
+ source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE);
+ pa_return_val_if_fail(source, -PA_ERR_NOENTITY);
+ }
+
+ pa_source_output_new_data_set_source(data, source, false);
+ }
+
+ /* If something didn't pick a format for us, pick the top-most format since
+ * we assume this is sorted in priority order */
+ if (!data->format && data->nego_formats && !pa_idxset_isempty(data->nego_formats))
+ data->format = pa_format_info_copy(pa_idxset_first(data->nego_formats, NULL));
+
+ if (PA_LIKELY(data->format)) {
+ pa_log_debug("Negotiated format: %s", pa_format_info_snprint(fmt, sizeof(fmt), data->format));
+ } else {
+ pa_format_info *format;
+ uint32_t idx;
+
+ pa_log_info("Source does not support any requested format:");
+ PA_IDXSET_FOREACH(format, data->req_formats, idx)
+ pa_log_info(" -- %s", pa_format_info_snprint(fmt, sizeof(fmt), format));
+
+ return -PA_ERR_NOTSUPPORTED;
}
- pa_return_val_if_fail(data->source, -PA_ERR_NOENTITY);
pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data->source)), -PA_ERR_BADSTATE);
pa_return_val_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of, -PA_ERR_INVALID);
- if (!data->sample_spec_is_set)
- data->sample_spec = data->source->sample_spec;
+ /* Routing is done. We have a source and a format. */
- pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
+ if (data->volume_is_set && pa_format_info_is_pcm(data->format)) {
+ /* If volume is set, we need to save the original data->channel_map,
+ * so that we can remap the volume from the original channel map to the
+ * final channel map of the stream in case data->channel_map gets
+ * modified in pa_format_info_to_sample_spec2(). */
+ r = pa_stream_get_volume_channel_map(&data->volume, data->channel_map_is_set ? &data->channel_map : NULL, data->format, &volume_map);
+ if (r < 0)
+ return r;
+ }
- if (!data->channel_map_is_set) {
- if (pa_channel_map_compatible(&data->source->channel_map, &data->sample_spec))
- data->channel_map = data->source->channel_map;
- else
- pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
+ /* Now populate the sample spec and channel map according to the final
+ * format that we've negotiated */
+ r = pa_format_info_to_sample_spec2(data->format, &data->sample_spec, &data->channel_map, &data->source->sample_spec,
+ &data->source->channel_map);
+ if (r < 0)
+ return r;
+
+ /* Don't restore (or save) stream volume for passthrough streams and
+ * prevent attenuation/gain */
+ if (pa_source_output_new_data_is_passthrough(data)) {
+ data->volume_is_set = true;
+ pa_cvolume_reset(&data->volume, data->sample_spec.channels);
+ data->volume_is_absolute = true;
+ data->save_volume = false;
}
- pa_return_val_if_fail(pa_channel_map_valid(&data->channel_map), -PA_ERR_INVALID);
- pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
+ if (!data->volume_is_set) {
+ pa_cvolume_reset(&data->volume, data->sample_spec.channels);
+ data->volume_is_absolute = false;
+ data->save_volume = false;
+ }
- if (data->flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
- data->sample_spec.format = data->source->sample_spec.format;
+ if (!data->volume_writable)
+ data->save_volume = false;
- if (data->flags & PA_SOURCE_OUTPUT_FIX_RATE)
- data->sample_spec.rate = data->source->sample_spec.rate;
+ if (data->volume_is_set)
+ /* The original volume channel map may be different than the final
+ * stream channel map, so remapping may be needed. */
+ pa_cvolume_remap(&data->volume, &volume_map, &data->channel_map);
- if (data->flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
- data->sample_spec.channels = data->source->sample_spec.channels;
- data->channel_map = data->source->channel_map;
+ if (!data->volume_factor_is_set)
+ pa_cvolume_reset(&data->volume_factor, data->sample_spec.channels);
+
+ pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor, &data->sample_spec), -PA_ERR_INVALID);
+
+ if (!data->volume_factor_source_is_set)
+ pa_cvolume_reset(&data->volume_factor_source, data->source->sample_spec.channels);
+
+ pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor_source, &data->source->sample_spec), -PA_ERR_INVALID);
+
+ if (!data->muted_is_set)
+ data->muted = false;
+
+ if (!(data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) &&
+ !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec)) {
+ /* try to change source rate. This is done before the FIXATE hook since
+ module-suspend-on-idle can resume a source */
+
+ pa_log_info("Trying to change sample rate");
+ if (pa_source_update_rate(data->source, data->sample_spec.rate, pa_source_output_new_data_is_passthrough(data)) >= 0)
+ pa_log_info("Rate changed to %u Hz", data->source->sample_spec.rate);
}
- pa_assert(pa_sample_spec_valid(&data->sample_spec));
- pa_assert(pa_channel_map_valid(&data->channel_map));
+ if (pa_source_output_new_data_is_passthrough(data) &&
+ !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec)) {
+ /* rate update failed, or other parts of sample spec didn't match */
+
+ pa_log_debug("Could not update source sample spec to match passthrough stream");
+ return -PA_ERR_NOTSUPPORTED;
+ }
if (data->resample_method == PA_RESAMPLER_INVALID)
data->resample_method = core->resample_method;
!pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
!pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
- if (!(resampler = pa_resampler_new(
- core->mempool,
- &data->source->sample_spec, &data->source->channel_map,
- &data->sample_spec, &data->channel_map,
- data->resample_method,
- ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
- ((data->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
- (core->disable_remixing || (data->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
- (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
- pa_log_warn("Unsupported resampling operation.");
- return -PA_ERR_NOTSUPPORTED;
- }
+ if (!pa_source_output_new_data_is_passthrough(data)) /* no resampler for passthrough content */
+ if (!(resampler = pa_resampler_new(
+ core->mempool,
+ &data->source->sample_spec, &data->source->channel_map,
+ &data->sample_spec, &data->channel_map,
+ data->resample_method,
+ ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
+ ((data->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
+ (core->disable_remixing || (data->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
+ (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
+ pa_log_warn("Unsupported resampling operation.");
+ return -PA_ERR_NOTSUPPORTED;
+ }
}
o = pa_msgobject_new(pa_source_output);
o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
o->module = data->module;
o->source = data->source;
+ o->destination_source = data->destination_source;
o->client = data->client;
- o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
o->requested_resample_method = data->resample_method;
+ o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
o->sample_spec = data->sample_spec;
o->channel_map = data->channel_map;
+ o->format = pa_format_info_copy(data->format);
- o->direct_on_input = data->direct_on_input;
+ if (!data->volume_is_absolute && pa_source_flat_volume_enabled(o->source)) {
+ pa_cvolume remapped;
+ /* When the 'absolute' bool is not set then we'll treat the volume
+ * as relative to the source volume even in flat volume mode */
+ remapped = data->source->reference_volume;
+ pa_cvolume_remap(&remapped, &data->source->channel_map, &data->channel_map);
+ pa_sw_cvolume_multiply(&o->volume, &data->volume, &remapped);
+ } else
+ o->volume = data->volume;
+
+ o->volume_factor = data->volume_factor;
+ o->volume_factor_source = data->volume_factor_source;
+ o->real_ratio = o->reference_ratio = data->volume;
+ pa_cvolume_reset(&o->soft_volume, o->sample_spec.channels);
+ pa_cvolume_reset(&o->real_ratio, o->sample_spec.channels);
+ o->volume_writable = data->volume_writable;
+ o->save_volume = data->save_volume;
o->save_source = data->save_source;
+ o->save_muted = data->save_muted;
+
+ o->muted = data->muted;
+
+ o->direct_on_input = data->direct_on_input;
reset_callbacks(o);
o->userdata = NULL;
o->thread_info.state = o->state;
- o->thread_info.attached = FALSE;
+ o->thread_info.attached = false;
o->thread_info.sample_spec = o->sample_spec;
o->thread_info.resampler = resampler;
+ o->thread_info.soft_volume = o->soft_volume;
+ o->thread_info.muted = o->muted;
o->thread_info.requested_source_latency = (pa_usec_t) -1;
o->thread_info.direct_on_input = o->direct_on_input;
o->thread_info.delay_memblockq = pa_memblockq_new(
+ "source output delay_memblockq",
0,
MEMBLOCKQ_MAXLENGTH,
0,
- pa_frame_size(&o->source->sample_spec),
+ &o->source->sample_spec,
0,
1,
0,
if (o->direct_on_input)
pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
- pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
+ pt = pa_proplist_to_string_sep(o->proplist, "\n ");
+ pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s\n %s",
o->index,
pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
o->source->name,
pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
- pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map));
+ pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map),
+ pt);
+ pa_xfree(pt);
/* Don't forget to call pa_source_output_put! */
/* Called from main context */
static void source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
+
pa_assert(o);
pa_assert_ctl_context();
if (o->state == state)
return;
+ if (o->state == PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_RUNNING && pa_source_used_by(o->source) == 0 &&
+ !pa_sample_spec_equal(&o->sample_spec, &o->source->sample_spec)) {
+ /* We were uncorked and the source was not playing anything -- let's try
+ * to update the sample rate to avoid resampling */
+ pa_source_update_rate(o->source, o->sample_spec.rate, pa_source_output_is_passthrough(o));
+ }
+
pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL) == 0);
update_n_corked(o, state);
o->state = state;
- if (state != PA_SOURCE_OUTPUT_UNLINKED)
+ if (state != PA_SOURCE_OUTPUT_UNLINKED) {
pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
+ if (PA_SOURCE_OUTPUT_IS_LINKED(state))
+ pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
+ }
+
pa_source_update_status(o->source);
}
/* Called from main context */
void pa_source_output_unlink(pa_source_output*o) {
- pa_bool_t linked;
+ bool linked;
pa_assert(o);
pa_assert_ctl_context();
update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
o->state = PA_SOURCE_OUTPUT_UNLINKED;
- if (linked && o->source)
+ if (linked && o->source) {
+ if (pa_source_output_is_passthrough(o))
+ pa_source_leave_passthrough(o->source);
+
+ /* We might need to update the source's volume if we are in flat volume mode. */
+ if (pa_source_flat_volume_enabled(o->source))
+ pa_source_set_volume(o->source, NULL, false, false);
+
if (o->source->asyncmsgq)
pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
+ }
reset_callbacks(o);
}
if (o->source) {
- pa_source_update_status(o->source);
+ if (PA_SOURCE_IS_LINKED(pa_source_get_state(o->source)))
+ pa_source_update_status(o->source);
+
o->source = NULL;
}
if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
pa_source_output_unlink(o);
- pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
+ pa_log_info("Freeing output %u \"%s\"", o->index,
+ o->proplist ? pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)) : "");
if (o->thread_info.delay_memblockq)
pa_memblockq_free(o->thread_info.delay_memblockq);
if (o->thread_info.resampler)
pa_resampler_free(o->thread_info.resampler);
+ if (o->format)
+ pa_format_info_free(o->format);
+
if (o->proplist)
pa_proplist_free(o->proplist);
update_n_corked(o, state);
o->state = state;
+ /* We might need to update the source's volume if we are in flat volume mode. */
+ if (pa_source_flat_volume_enabled(o->source))
+ pa_source_set_volume(o->source, NULL, false, o->save_volume);
+ else {
+ if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
+ pa_assert(pa_cvolume_is_norm(&o->volume));
+ pa_assert(pa_cvolume_is_norm(&o->reference_ratio));
+ }
+
+ set_real_ratio(o, &o->volume);
+ }
+
+ if (pa_source_output_is_passthrough(o))
+ pa_source_enter_passthrough(o->source);
+
+ o->thread_info.soft_volume = o->soft_volume;
+ o->thread_info.muted = o->muted;
+
pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
/* Called from thread context */
void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
+ bool need_volume_factor_source;
+ bool volume_is_norm;
size_t length;
size_t limit, mbs = 0;
if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
pa_log_debug("Delay queue overflow!");
- pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, TRUE);
+ pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, true);
}
limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
+ volume_is_norm = pa_cvolume_is_norm(&o->thread_info.soft_volume) && !o->thread_info.muted;
+ need_volume_factor_source = !pa_cvolume_is_norm(&o->volume_factor_source);
+
if (limit > 0 && o->source->monitor_of) {
pa_usec_t latency;
size_t n;
/* Implement the delay queue */
while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
pa_memchunk qchunk;
+ bool nvfs = need_volume_factor_source;
length -= limit;
pa_assert(qchunk.length > 0);
- if (!o->thread_info.resampler)
+ /* It might be necessary to adjust the volume here */
+ if (!volume_is_norm) {
+ pa_memchunk_make_writable(&qchunk, 0);
+
+ if (o->thread_info.muted) {
+ pa_silence_memchunk(&qchunk, &o->source->sample_spec);
+ nvfs = false;
+
+ } else if (!o->thread_info.resampler && nvfs) {
+ pa_cvolume v;
+
+ /* If we don't need a resampler we can merge the
+ * post and the pre volume adjustment into one */
+
+ pa_sw_cvolume_multiply(&v, &o->thread_info.soft_volume, &o->volume_factor_source);
+ pa_volume_memchunk(&qchunk, &o->source->sample_spec, &v);
+ nvfs = false;
+
+ } else
+ pa_volume_memchunk(&qchunk, &o->source->sample_spec, &o->thread_info.soft_volume);
+ }
+
+ if (!o->thread_info.resampler) {
+ if (nvfs) {
+ pa_memchunk_make_writable(&qchunk, 0);
+ pa_volume_memchunk(&qchunk, &o->thread_info.sample_spec, &o->volume_factor_source);
+ }
+
o->push(o, &qchunk);
- else {
+ } else {
pa_memchunk rchunk;
if (mbs == 0)
pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
- if (rchunk.length > 0)
+ if (rchunk.length > 0) {
+ if (nvfs) {
+ pa_memchunk_make_writable(&rchunk, 0);
+ pa_volume_memchunk(&rchunk, &o->thread_info.sample_spec, &o->volume_factor_source);
+ }
+
o->push(o, &rchunk);
+ }
if (rchunk.memblock)
pa_memblock_unref(rchunk.memblock);
usec = PA_CLAMP(usec, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
o->thread_info.requested_source_latency = usec;
- pa_source_invalidate_requested_latency(o->source, TRUE);
+ pa_source_invalidate_requested_latency(o->source, true);
return usec;
}
}
/* Called from main context */
-void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
+void pa_source_output_set_volume(pa_source_output *o, const pa_cvolume *volume, bool save, bool absolute) {
+ pa_cvolume v;
+
+ pa_source_output_assert_ref(o);
+ pa_assert_ctl_context();
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
+ pa_assert(volume);
+ pa_assert(pa_cvolume_valid(volume));
+ pa_assert(volume->channels == 1 || pa_cvolume_compatible(volume, &o->sample_spec));
+ pa_assert(o->volume_writable);
+
+ if (!absolute && pa_source_flat_volume_enabled(o->source)) {
+ v = o->source->reference_volume;
+ pa_cvolume_remap(&v, &o->source->channel_map, &o->channel_map);
+
+ if (pa_cvolume_compatible(volume, &o->sample_spec))
+ volume = pa_sw_cvolume_multiply(&v, &v, volume);
+ else
+ volume = pa_sw_cvolume_multiply_scalar(&v, &v, pa_cvolume_max(volume));
+ } else {
+ if (!pa_cvolume_compatible(volume, &o->sample_spec)) {
+ v = o->volume;
+ volume = pa_cvolume_scale(&v, pa_cvolume_max(volume));
+ }
+ }
+
+ if (pa_cvolume_equal(volume, &o->volume)) {
+ o->save_volume = o->save_volume || save;
+ return;
+ }
+
+ pa_source_output_set_volume_direct(o, volume);
+ o->save_volume = save;
+
+ if (pa_source_flat_volume_enabled(o->source)) {
+ /* We are in flat volume mode, so let's update all source input
+ * volumes and update the flat volume of the source */
+
+ pa_source_set_volume(o->source, NULL, true, save);
+
+ } else {
+ /* OK, we are in normal volume mode. The volume only affects
+ * ourselves */
+ set_real_ratio(o, volume);
+
+ /* Copy the new soft_volume to the thread_info struct */
+ pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
+ }
+
+ /* The volume changed, let's tell people so */
+ if (o->volume_changed)
+ o->volume_changed(o);
+
+ /* The virtual volume changed, let's tell people so */
+ pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
+}
+
+/* Called from main context */
+static void set_real_ratio(pa_source_output *o, const pa_cvolume *v) {
+ pa_source_output_assert_ref(o);
+ pa_assert_ctl_context();
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
+ pa_assert(!v || pa_cvolume_compatible(v, &o->sample_spec));
+
+ /* This basically calculates:
+ *
+ * o->real_ratio := v
+ * o->soft_volume := o->real_ratio * o->volume_factor */
+
+ if (v)
+ o->real_ratio = *v;
+ else
+ pa_cvolume_reset(&o->real_ratio, o->sample_spec.channels);
+
+ pa_sw_cvolume_multiply(&o->soft_volume, &o->real_ratio, &o->volume_factor);
+ /* We don't copy the data to the thread_info data. That's left for someone else to do */
+}
+
+/* Called from main or I/O context */
+bool pa_source_output_is_passthrough(pa_source_output *o) {
+ pa_source_output_assert_ref(o);
+
+ if (PA_UNLIKELY(!pa_format_info_is_pcm(o->format)))
+ return true;
+
+ if (PA_UNLIKELY(o->flags & PA_SOURCE_OUTPUT_PASSTHROUGH))
+ return true;
+
+ return false;
+}
+
+/* Called from main context */
+bool pa_source_output_is_volume_readable(pa_source_output *o) {
+ pa_source_output_assert_ref(o);
+ pa_assert_ctl_context();
+
+ return !pa_source_output_is_passthrough(o);
+}
+
+/* Called from main context */
+pa_cvolume *pa_source_output_get_volume(pa_source_output *o, pa_cvolume *volume, bool absolute) {
+ pa_source_output_assert_ref(o);
+ pa_assert_ctl_context();
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
+ pa_assert(pa_source_output_is_volume_readable(o));
+
+ if (absolute || !pa_source_flat_volume_enabled(o->source))
+ *volume = o->volume;
+ else
+ *volume = o->reference_ratio;
+
+ return volume;
+}
+
+/* Called from main context */
+void pa_source_output_set_mute(pa_source_output *o, bool mute, bool save) {
+ bool old_mute;
+
+ pa_source_output_assert_ref(o);
+ pa_assert_ctl_context();
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
+
+ old_mute = o->muted;
+
+ if (mute == old_mute) {
+ o->save_muted |= save;
+ return;
+ }
+
+ o->muted = mute;
+ pa_log_debug("The mute of source output %u changed from %s to %s.", o->index, pa_yes_no(old_mute), pa_yes_no(mute));
+
+ o->save_muted = save;
+
+ pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
+
+ /* The mute status changed, let's tell people so */
+ if (o->mute_changed)
+ o->mute_changed(o);
+
+ pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
+}
+
+/* Called from main context */
+bool pa_source_output_get_mute(pa_source_output *o) {
+ pa_source_output_assert_ref(o);
+ pa_assert_ctl_context();
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
+
+ return o->muted;
+}
+
+/* Called from main thread */
+void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
+ pa_source_output_assert_ref(o);
+ pa_assert_ctl_context();
+
+ if (p)
+ pa_proplist_update(o->proplist, mode, p);
+
+ if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
+ pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
+ pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
+ }
+}
+
+/* Called from main context */
+void pa_source_output_cork(pa_source_output *o, bool b) {
pa_source_output_assert_ref(o);
pa_assert_ctl_context();
pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
- if (old && name && !strcmp(old, name))
+ if (old && name && pa_streq(old, name))
return;
if (name)
}
}
-/* Called from main thread */
-void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
- pa_source_output_assert_ref(o);
- pa_assert_ctl_context();
-
- if (p)
- pa_proplist_update(o->proplist, mode, p);
-
- if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
- pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
- pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
- }
-}
-
/* Called from main context */
pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
pa_source_output_assert_ref(o);
}
/* Called from main context */
-pa_bool_t pa_source_output_may_move(pa_source_output *o) {
+bool pa_source_output_may_move(pa_source_output *o) {
pa_source_output_assert_ref(o);
pa_assert_ctl_context();
pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
- return FALSE;
+ return false;
if (o->direct_on_input)
- return FALSE;
+ return false;
- return TRUE;
+ return true;
+}
+
+static bool find_filter_source_output(pa_source_output *target, pa_source *s) {
+ int i = 0;
+ while (s && s->output_from_master) {
+ if (s->output_from_master == target)
+ return true;
+ s = s->output_from_master->source;
+ pa_assert(i++ < 100);
+ }
+ return false;
}
/* Called from main context */
-pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
+bool pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
pa_source_output_assert_ref(o);
pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
pa_source_assert_ref(dest);
if (dest == o->source)
- return TRUE;
+ return true;
if (!pa_source_output_may_move(o))
- return FALSE;
+ return false;
+
+ /* Make sure we're not creating a filter source cycle */
+ if (find_filter_source_output(o, dest)) {
+ pa_log_debug("Can't connect output to %s, as that would create a cycle.", dest->name);
+ return false;
+ }
if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
pa_log_warn("Failed to move source output: too many outputs per source.");
- return FALSE;
+ return false;
}
if (o->may_move_to)
if (!o->may_move_to(o, dest))
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
/* Called from main context */
if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
pa_assert_se(origin->n_corked-- >= 1);
+ if (pa_source_output_is_passthrough(o))
+ pa_source_leave_passthrough(o->source);
+
+ if (pa_source_flat_volume_enabled(o->source))
+ /* We might need to update the source's volume if we are in flat
+ * volume mode. */
+ pa_source_set_volume(o->source, NULL, false, false);
+
pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
pa_source_update_status(o->source);
return 0;
}
-/* Called from main context */
-int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
- pa_resampler *new_resampler;
+/* Called from main context. If it has an origin source that uses volume sharing,
+ * then also the origin source and all streams connected to it need to update
+ * their volume - this function does all that by using recursion. */
+static void update_volume_due_to_moving(pa_source_output *o, pa_source *dest) {
+ pa_cvolume new_volume;
+
+ pa_assert(o);
+ pa_assert(dest);
+ pa_assert(o->source); /* The destination source should already be set. */
+
+ if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
+ pa_source *root_source;
+ pa_source_output *destination_source_output;
+ uint32_t idx;
+
+ root_source = pa_source_get_master(o->source);
+
+ if (PA_UNLIKELY(!root_source))
+ return;
+
+ if (pa_source_flat_volume_enabled(o->source)) {
+ /* Ok, so the origin source uses volume sharing, and flat volume is
+ * enabled. The volume will have to be updated as follows:
+ *
+ * o->volume := o->source->real_volume
+ * (handled later by pa_source_set_volume)
+ * o->reference_ratio := o->volume / o->source->reference_volume
+ * (handled later by pa_source_set_volume)
+ * o->real_ratio stays unchanged
+ * (streams whose origin source uses volume sharing should
+ * always have real_ratio of 0 dB)
+ * o->soft_volume stays unchanged
+ * (streams whose origin source uses volume sharing should
+ * always have volume_factor as soft_volume, so no change
+ * should be needed) */
+
+ pa_assert(pa_cvolume_is_norm(&o->real_ratio));
+ pa_assert(pa_cvolume_equal(&o->soft_volume, &o->volume_factor));
+
+ /* Notifications will be sent by pa_source_set_volume(). */
+
+ } else {
+ /* Ok, so the origin source uses volume sharing, and flat volume is
+ * disabled. The volume will have to be updated as follows:
+ *
+ * o->volume := 0 dB
+ * o->reference_ratio := 0 dB
+ * o->real_ratio stays unchanged
+ * (streams whose origin source uses volume sharing should
+ * always have real_ratio of 0 dB)
+ * o->soft_volume stays unchanged
+ * (streams whose origin source uses volume sharing should
+ * always have volume_factor as soft_volume, so no change
+ * should be needed) */
+
+ pa_cvolume_reset(&new_volume, o->volume.channels);
+ pa_source_output_set_volume_direct(o, &new_volume);
+ pa_cvolume_reset(&o->reference_ratio, o->reference_ratio.channels);
+ pa_assert(pa_cvolume_is_norm(&o->real_ratio));
+ pa_assert(pa_cvolume_equal(&o->soft_volume, &o->volume_factor));
+ }
+ /* Additionally, the origin source volume needs updating:
+ *
+ * o->destination_source->reference_volume := root_source->reference_volume
+ * o->destination_source->real_volume := root_source->real_volume
+ * o->destination_source->soft_volume stays unchanged
+ * (sources that use volume sharing should always have
+ * soft_volume of 0 dB) */
+
+ new_volume = root_source->reference_volume;
+ pa_cvolume_remap(&new_volume, &root_source->channel_map, &o->destination_source->channel_map);
+ pa_source_set_reference_volume_direct(o->destination_source, &new_volume);
+
+ o->destination_source->real_volume = root_source->real_volume;
+ pa_cvolume_remap(&o->destination_source->real_volume, &root_source->channel_map, &o->destination_source->channel_map);
+
+ pa_assert(pa_cvolume_is_norm(&o->destination_source->soft_volume));
+
+ /* If you wonder whether o->destination_source->set_volume() should be
+ * called somewhere, that's not the case, because sources that use
+ * volume sharing shouldn't have any internal volume that set_volume()
+ * would update. If you wonder whether the thread_info variables should
+ * be synced, yes, they should, and it's done by the
+ * PA_SOURCE_MESSAGE_FINISH_MOVE message handler. */
+
+ /* Recursively update origin source outputs. */
+ PA_IDXSET_FOREACH(destination_source_output, o->destination_source->outputs, idx)
+ update_volume_due_to_moving(destination_source_output, dest);
+
+ } else {
+ if (pa_source_flat_volume_enabled(o->source)) {
+ /* Ok, so this is a regular stream, and flat volume is enabled. The
+ * volume will have to be updated as follows:
+ *
+ * o->volume := o->reference_ratio * o->source->reference_volume
+ * o->reference_ratio stays unchanged
+ * o->real_ratio := o->volume / o->source->real_volume
+ * (handled later by pa_source_set_volume)
+ * o->soft_volume := o->real_ratio * o->volume_factor
+ * (handled later by pa_source_set_volume) */
+
+ new_volume = o->source->reference_volume;
+ pa_cvolume_remap(&new_volume, &o->source->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);
+
+ } else {
+ /* Ok, so this is a regular stream, and flat volume is disabled.
+ * The volume will have to be updated as follows:
+ *
+ * o->volume := o->reference_ratio
+ * o->reference_ratio stays unchanged
+ * o->real_ratio := o->reference_ratio
+ * o->soft_volume := o->real_ratio * o->volume_factor */
+
+ pa_source_output_set_volume_direct(o, &o->reference_ratio);
+ o->real_ratio = o->reference_ratio;
+ pa_sw_cvolume_multiply(&o->soft_volume, &o->real_ratio, &o->volume_factor);
+ }
+ }
+
+ /* If o->source == dest, then recursion has finished, and we can finally call
+ * pa_source_set_volume(), which will do the rest of the updates. */
+ if ((o->source == dest) && pa_source_flat_volume_enabled(o->source))
+ pa_source_set_volume(o->source, NULL, false, o->save_volume);
+}
+
+/* Called from main context */
+int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, bool save) {
pa_source_output_assert_ref(o);
pa_assert_ctl_context();
pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
pa_source_assert_ref(dest);
if (!pa_source_output_may_move_to(o, dest))
- return -1;
-
- if (o->thread_info.resampler &&
- pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &dest->sample_spec) &&
- pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &dest->channel_map))
-
- /* Try to reuse the old resampler if possible */
- new_resampler = o->thread_info.resampler;
+ return -PA_ERR_NOTSUPPORTED;
- else if ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
- !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec) ||
- !pa_channel_map_equal(&o->channel_map, &dest->channel_map)) {
+ if (pa_source_output_is_passthrough(o) && !pa_source_check_format(dest, o->format)) {
+ pa_proplist *p = pa_proplist_new();
+ pa_log_debug("New source doesn't support stream format, sending format-changed and killing");
+ /* Tell the client what device we want to be on if it is going to
+ * reconnect */
+ pa_proplist_sets(p, "device", dest->name);
+ pa_source_output_send_event(o, PA_STREAM_EVENT_FORMAT_LOST, p);
+ pa_proplist_free(p);
+ return -PA_ERR_NOTSUPPORTED;
+ }
- /* Okey, we need a new resampler for the new source */
+ if (!(o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) &&
+ !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec)) {
+ /* try to change dest sink rate if possible without glitches.
+ module-suspend-on-idle resumes destination source with
+ SOURCE_OUTPUT_MOVE_FINISH hook */
- if (!(new_resampler = pa_resampler_new(
- o->core->mempool,
- &dest->sample_spec, &dest->channel_map,
- &o->sample_spec, &o->channel_map,
- o->requested_resample_method,
- ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
- ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
- (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
- pa_log_warn("Unsupported resampling operation.");
- return -PA_ERR_NOTSUPPORTED;
- }
- } else
- new_resampler = NULL;
+ pa_log_info("Trying to change sample rate");
+ if (pa_source_update_rate(dest, o->sample_spec.rate, pa_source_output_is_passthrough(o)) >= 0)
+ pa_log_info("Rate changed to %u Hz", dest->sample_spec.rate);
+ }
if (o->moving)
o->moving(o, dest);
o->save_source = save;
pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL);
+ pa_cvolume_remap(&o->volume_factor_source, &o->channel_map, &o->source->channel_map);
+
if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
o->source->n_corked++;
- /* Replace resampler */
- if (new_resampler != o->thread_info.resampler) {
- if (o->thread_info.resampler)
- pa_resampler_free(o->thread_info.resampler);
- o->thread_info.resampler = new_resampler;
+ pa_source_output_update_rate(o);
- pa_memblockq_free(o->thread_info.delay_memblockq);
+ pa_source_update_status(dest);
- o->thread_info.delay_memblockq = pa_memblockq_new(
- 0,
- MEMBLOCKQ_MAXLENGTH,
- 0,
- pa_frame_size(&o->source->sample_spec),
- 0,
- 1,
- 0,
- &o->source->silence);
- }
+ update_volume_due_to_moving(o, dest);
- pa_source_update_status(dest);
+ if (pa_source_output_is_passthrough(o))
+ pa_source_enter_passthrough(o->source);
pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
}
/* Called from main context */
-int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
+int pa_source_output_move_to(pa_source_output *o, pa_source *dest, bool save) {
int r;
pa_source_output_assert_ref(o);
case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
+
return 0;
case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
*r = o->thread_info.requested_source_latency;
return 0;
}
+
+ case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME:
+ if (!pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume)) {
+ o->thread_info.soft_volume = o->soft_volume;
+ }
+ return 0;
+
+ case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE:
+ if (o->thread_info.muted != o->muted) {
+ o->thread_info.muted = o->muted;
+ }
+ return 0;
}
return -PA_ERR_NOTIMPLEMENTED;
if (pl)
pa_proplist_free(pl);
}
+
+/* Called from main context */
+/* Updates the source output's resampler with whatever the current source
+ * requires -- useful when the underlying source's rate might have changed */
+int pa_source_output_update_rate(pa_source_output *o) {
+ pa_resampler *new_resampler;
+ char *memblockq_name;
+
+ pa_source_output_assert_ref(o);
+ pa_assert_ctl_context();
+
+ if (o->thread_info.resampler &&
+ pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &o->source->sample_spec) &&
+ pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &o->source->channel_map))
+
+ new_resampler = o->thread_info.resampler;
+
+ else if (!pa_source_output_is_passthrough(o) &&
+ ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
+ !pa_sample_spec_equal(&o->sample_spec, &o->source->sample_spec) ||
+ !pa_channel_map_equal(&o->channel_map, &o->source->channel_map))) {
+
+ new_resampler = pa_resampler_new(o->core->mempool,
+ &o->source->sample_spec, &o->source->channel_map,
+ &o->sample_spec, &o->channel_map,
+ o->requested_resample_method,
+ ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
+ ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
+ (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
+ (o->core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0));
+
+ if (!new_resampler) {
+ pa_log_warn("Unsupported resampling operation.");
+ return -PA_ERR_NOTSUPPORTED;
+ }
+ } else
+ new_resampler = NULL;
+
+ if (new_resampler == o->thread_info.resampler)
+ return 0;
+
+ if (o->thread_info.resampler)
+ pa_resampler_free(o->thread_info.resampler);
+
+ o->thread_info.resampler = new_resampler;
+
+ pa_memblockq_free(o->thread_info.delay_memblockq);
+
+ memblockq_name = pa_sprintf_malloc("source output delay_memblockq [%u]", o->index);
+ o->thread_info.delay_memblockq = pa_memblockq_new(
+ memblockq_name,
+ 0,
+ MEMBLOCKQ_MAXLENGTH,
+ 0,
+ &o->source->sample_spec,
+ 0,
+ 1,
+ 0,
+ &o->source->silence);
+ pa_xfree(memblockq_name);
+
+ o->actual_resample_method = new_resampler ? pa_resampler_get_method(new_resampler) : PA_RESAMPLER_INVALID;
+
+ pa_log_debug("Updated resampler for source output %d", o->index);
+
+ return 0;
+}
+
+/* Called from the main thread. */
+void pa_source_output_set_volume_direct(pa_source_output *o, 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(o);
+ pa_assert(volume);
+
+ old_volume = o->volume;
+
+ if (pa_cvolume_equal(volume, &old_volume))
+ return;
+
+ o->volume = *volume;
+ pa_log_debug("The volume of source output %u changed from %s to %s.", o->index,
+ pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &o->channel_map, true),
+ pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &o->channel_map, true));
+
+ if (o->volume_changed)
+ o->volume_changed(o);
+
+ pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
+}