| /*** | |
| This file is part of PulseAudio. | |
| Copyright 2004-2006 Lennart Poettering | |
| PulseAudio is free software; you can redistribute it and/or modify | |
| it under the terms of the GNU Lesser General Public License as published | |
| by the Free Software Foundation; either version 2.1 of the License, | |
| or (at your option) any later version. | |
| PulseAudio is distributed in the hope that it will be useful, but | |
| WITHOUT ANY WARRANTY; without even the implied warranty of | |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| General Public License for more details. | |
| You should have received a copy of the GNU Lesser General Public License | |
| along with PulseAudio; if not, see <http://www.gnu.org/licenses/>. | |
| ***/ | |
| #ifdef HAVE_CONFIG_H | |
| #include <config.h> | |
| #endif | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <string.h> | |
| #include <pulse/utf8.h> | |
| #include <pulse/xmalloc.h> | |
| #include <pulse/util.h> | |
| #include <pulse/internal.h> | |
| #include <pulse/timeval.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> | |
| #include <pulsecore/core-util.h> | |
| #include "source-output.h" | |
| #define MEMBLOCKQ_MAXLENGTH (32*1024*1024) | |
| 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; | |
| } | |
| void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data *data, const pa_sample_spec *spec) { | |
| pa_assert(data); | |
| if ((data->sample_spec_is_set = !!spec)) | |
| data->sample_spec = *spec; | |
| } | |
| void pa_source_output_new_data_set_channel_map(pa_source_output_new_data *data, const pa_channel_map *map) { | |
| pa_assert(data); | |
| if ((data->channel_map_is_set = !!map)) | |
| 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 requested_by_application) { | |
| 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; | |
| if (save) { | |
| pa_xfree(data->preferred_source); | |
| data->preferred_source = pa_xstrdup(s->name); | |
| } | |
| data->source_requested_by_application = requested_by_application; | |
| } 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; | |
| if (save) { | |
| pa_xfree(data->preferred_source); | |
| data->preferred_source = pa_xstrdup(s->name); | |
| } | |
| data->source_requested_by_application = requested_by_application; | |
| 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->preferred_source != NULL), | |
| data->source_requested_by_application); | |
| } | |
| 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); | |
| if (data->preferred_source) | |
| pa_xfree(data->preferred_source); | |
| pa_proplist_free(data->proplist); | |
| } | |
| /* Called from main context */ | |
| static void reset_callbacks(pa_source_output *o) { | |
| pa_assert(o); | |
| o->push = NULL; | |
| o->process_rewind = NULL; | |
| o->update_max_rewind = NULL; | |
| o->update_source_requested_latency = NULL; | |
| o->update_source_latency_range = NULL; | |
| o->update_source_fixed_latency = NULL; | |
| o->attach = NULL; | |
| o->detach = NULL; | |
| o->suspend = NULL; | |
| o->suspend_within_thread = NULL; | |
| o->moving = NULL; | |
| o->kill = NULL; | |
| o->get_latency = NULL; | |
| 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 */ | |
| int pa_source_output_new( | |
| pa_source_output**_o, | |
| pa_core *core, | |
| pa_source_output_new_data *data) { | |
| pa_source_output *o; | |
| pa_resampler *resampler = NULL; | |
| 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; | |
| size_t resampler_history; | |
| pa_assert(_o); | |
| pa_assert(core); | |
| pa_assert(data); | |
| pa_assert_ctl_context(); | |
| 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) { | |
| 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, 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)) { | |
| /* We know that data->source is set, because data->format has been set. | |
| * data->format is set after a successful format negotiation, and that | |
| * can't happen before data->source has been set. */ | |
| pa_assert(data->source); | |
| 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(PA_SOURCE_IS_LINKED(data->source->state), -PA_ERR_BADSTATE); | |
| pa_return_val_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of, -PA_ERR_INVALID); | |
| /* Routing is done. We have a source and a format. */ | |
| if (data->volume_is_set && !pa_source_output_new_data_is_passthrough(data)) { | |
| /* 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; | |
| } else { | |
| /* Initialize volume_map to invalid state. We check the state later to | |
| * determine if volume remapping is needed. */ | |
| pa_channel_map_init(&volume_map); | |
| } | |
| /* 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; | |
| } | |
| 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->volume_writable) | |
| data->save_volume = false; | |
| if (pa_channel_map_valid(&volume_map)) | |
| /* 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->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 format and rate. This is done before the FIXATE hook since | |
| module-suspend-on-idle can resume a source */ | |
| pa_log_info("Trying to change sample spec"); | |
| pa_source_reconfigure(data->source, &data->sample_spec, pa_source_output_new_data_is_passthrough(data)); | |
| } | |
| 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_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID); | |
| if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data)) < 0) | |
| return r; | |
| if ((data->flags & PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND) && | |
| data->source->state == PA_SOURCE_SUSPENDED) { | |
| pa_log("Failed to create source output: source is suspended."); | |
| return -PA_ERR_BADSTATE; | |
| } | |
| if (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) { | |
| pa_log("Failed to create source output: too many outputs per source."); | |
| return -PA_ERR_TOOLARGE; | |
| } | |
| if ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) || | |
| !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) || | |
| !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) { | |
| 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, | |
| core->lfe_crossover_freq, | |
| 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->remixing_use_all_sink_channels ? 0 : PA_RESAMPLER_NO_FILL_SINK) | | |
| (core->remixing_produce_lfe ? PA_RESAMPLER_PRODUCE_LFE : 0) | | |
| (core->remixing_consume_lfe ? PA_RESAMPLER_CONSUME_LFE : 0)))) { | |
| pa_log_warn("Unsupported resampling operation."); | |
| return -PA_ERR_NOTSUPPORTED; | |
| } | |
| } | |
| o = pa_msgobject_new(pa_source_output); | |
| o->parent.parent.free = source_output_free; | |
| o->parent.process_msg = pa_source_output_process_msg; | |
| o->core = core; | |
| o->state = PA_SOURCE_OUTPUT_INIT; | |
| o->flags = data->flags; | |
| o->proplist = pa_proplist_copy(data->proplist); | |
| o->driver = pa_xstrdup(pa_path_get_filename(data->driver)); | |
| o->module = data->module; | |
| o->source = data->source; | |
| o->source_requested_by_application = data->source_requested_by_application; | |
| o->destination_source = data->destination_source; | |
| o->client = data->client; | |
| 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); | |
| 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->preferred_source = pa_xstrdup(data->preferred_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.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, | |
| &o->source->sample_spec, | |
| 0, | |
| 1, | |
| 0, | |
| &o->source->silence); | |
| resampler_history = (uint64_t) PA_RESAMPLER_MAX_DELAY_USEC * o->source->sample_spec.rate / PA_USEC_PER_SEC; | |
| resampler_history *= pa_frame_size(&o->source->sample_spec); | |
| pa_memblockq_set_maxrewind(o->thread_info.delay_memblockq, resampler_history + pa_source_get_max_rewind(o->source)); | |
| pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0); | |
| pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0); | |
| if (o->client) | |
| pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0); | |
| if (o->direct_on_input) | |
| pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0); | |
| 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), | |
| pt); | |
| pa_xfree(pt); | |
| /* Don't forget to call pa_source_output_put! */ | |
| *_o = o; | |
| return 0; | |
| } | |
| /* Called from main context */ | |
| static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) { | |
| pa_assert(o); | |
| pa_assert_ctl_context(); | |
| if (!o->source) | |
| return; | |
| if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED) | |
| pa_assert_se(o->source->n_corked -- >= 1); | |
| else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED) | |
| o->source->n_corked++; | |
| } | |
| /* 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->source) { | |
| 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 format and rate to avoid resampling */ | |
| pa_source_reconfigure(o->source, &o->sample_spec, 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); | |
| } else | |
| /* If the source is not valid, pa_source_output_set_state_within_thread() must be called directly */ | |
| pa_source_output_set_state_within_thread(o, state); | |
| update_n_corked(o, state); | |
| o->state = state; | |
| 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); | |
| } | |
| if (o->source) | |
| pa_source_update_status(o->source); | |
| } | |
| /* Called from main context */ | |
| void pa_source_output_unlink(pa_source_output*o) { | |
| bool linked; | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| /* See pa_sink_unlink() for a couple of comments how this function | |
| * works */ | |
| pa_source_output_ref(o); | |
| linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state); | |
| if (linked) | |
| pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o); | |
| if (o->direct_on_input) | |
| pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL); | |
| pa_idxset_remove_by_data(o->core->source_outputs, o, NULL); | |
| if (o->source) | |
| if (pa_idxset_remove_by_data(o->source->outputs, o, NULL)) | |
| pa_source_output_unref(o); | |
| if (o->client) | |
| pa_idxset_remove_by_data(o->client->source_outputs, o, NULL); | |
| update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED); | |
| o->state = PA_SOURCE_OUTPUT_UNLINKED; | |
| 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) { | |
| if (PA_SOURCE_IS_LINKED(o->source->state)) | |
| pa_source_update_status(o->source); | |
| o->source = NULL; | |
| } | |
| if (linked) { | |
| pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index); | |
| pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o); | |
| } | |
| pa_core_maybe_vacuum(o->core); | |
| pa_source_output_unref(o); | |
| } | |
| /* Called from main context */ | |
| static void source_output_free(pa_object* mo) { | |
| pa_source_output *o = PA_SOURCE_OUTPUT(mo); | |
| pa_assert(o); | |
| pa_assert_ctl_context(); | |
| pa_assert(pa_source_output_refcnt(o) == 0); | |
| pa_assert(!PA_SOURCE_OUTPUT_IS_LINKED(o->state)); | |
| 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); | |
| if (o->preferred_source) | |
| pa_xfree(o->preferred_source); | |
| pa_xfree(o->driver); | |
| pa_xfree(o); | |
| } | |
| /* Called from main context */ | |
| void pa_source_output_put(pa_source_output *o) { | |
| pa_source_output_state_t state; | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| pa_assert(o->state == PA_SOURCE_OUTPUT_INIT); | |
| /* The following fields must be initialized properly */ | |
| pa_assert(o->push); | |
| pa_assert(o->kill); | |
| state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING; | |
| 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); | |
| pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o); | |
| pa_source_update_status(o->source); | |
| } | |
| /* Called from main context */ | |
| void pa_source_output_kill(pa_source_output*o) { | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state)); | |
| o->kill(o); | |
| } | |
| /* Called from main context */ | |
| pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) { | |
| pa_usec_t r[2] = { 0, 0 }; | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state)); | |
| pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0); | |
| if (o->get_latency) | |
| r[0] += o->get_latency(o); | |
| if (source_latency) | |
| *source_latency = r[1]; | |
| return r[0]; | |
| } | |
| /* 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; | |
| pa_source_output_assert_ref(o); | |
| pa_source_output_assert_io_context(o); | |
| pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state)); | |
| pa_assert(chunk); | |
| pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec)); | |
| if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED) | |
| return; | |
| pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING); | |
| 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); | |
| } | |
| 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; | |
| /* Hmm, check the latency for knowing how much of the buffered | |
| * data is actually still unplayed and might hence still | |
| * change. This is suboptimal. Ideally we'd have a call like | |
| * pa_sink_get_changeable_size() or so that tells us how much | |
| * of the queued data is actually still changeable. Hence | |
| * FIXME! */ | |
| latency = pa_sink_get_latency_within_thread(o->source->monitor_of, false); | |
| n = pa_usec_to_bytes(latency, &o->source->sample_spec); | |
| if (n < limit) | |
| limit = 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_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0); | |
| if (qchunk.length > length) | |
| qchunk.length = length; | |
| pa_assert(qchunk.length > 0); | |
| /* 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 (nvfs) { | |
| pa_memchunk_make_writable(&qchunk, 0); | |
| pa_volume_memchunk(&qchunk, &o->source->sample_spec, &o->volume_factor_source); | |
| } | |
| if (!o->thread_info.resampler) | |
| o->push(o, &qchunk); | |
| else { | |
| pa_memchunk rchunk; | |
| if (mbs == 0) | |
| mbs = pa_resampler_max_block_size(o->thread_info.resampler); | |
| if (qchunk.length > mbs) | |
| qchunk.length = mbs; | |
| pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk); | |
| if (rchunk.length > 0) | |
| o->push(o, &rchunk); | |
| if (rchunk.memblock) | |
| pa_memblock_unref(rchunk.memblock); | |
| } | |
| pa_memblock_unref(qchunk.memblock); | |
| pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length); | |
| } | |
| } | |
| /* Called from thread context */ | |
| void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) { | |
| pa_source_output_assert_ref(o); | |
| pa_source_output_assert_io_context(o); | |
| pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state)); | |
| pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec)); | |
| if (nbytes <= 0) | |
| return; | |
| if (o->process_rewind) { | |
| size_t source_output_nbytes; | |
| size_t length; | |
| /* The length of the memblockq may be non-zero if pa_source_output_rewind() is called twice | |
| * without pa_source_output_push() called in between. In that case, the resampler has already | |
| * been reset and we can skip that part. */ | |
| length = pa_memblockq_get_length(o->thread_info.delay_memblockq); | |
| pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes); | |
| source_output_nbytes = pa_resampler_result(o->thread_info.resampler, nbytes); | |
| pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) source_output_nbytes); | |
| if (source_output_nbytes > 0) | |
| o->process_rewind(o, source_output_nbytes); | |
| if (o->thread_info.resampler && length == 0) { | |
| size_t resampler_bytes; | |
| /* Round down to full frames */ | |
| resampler_bytes = (size_t) pa_resampler_get_delay(o->thread_info.resampler, false) * pa_frame_size(&o->source->sample_spec); | |
| if (resampler_bytes > 0) | |
| pa_memblockq_rewind(o->thread_info.delay_memblockq, resampler_bytes); | |
| pa_resampler_rewind(o->thread_info.resampler, source_output_nbytes, NULL, 0); | |
| } | |
| } | |
| pa_memblockq_seek(o->thread_info.delay_memblockq, - ((int64_t) nbytes), PA_SEEK_RELATIVE, true); | |
| } | |
| /* Called from thread context */ | |
| size_t pa_source_output_get_max_rewind(pa_source_output *o) { | |
| pa_source_output_assert_ref(o); | |
| pa_source_output_assert_io_context(o); | |
| return pa_resampler_result(o->thread_info.resampler, o->source->thread_info.max_rewind); | |
| } | |
| /* Called from thread context */ | |
| void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) { | |
| size_t resampler_history; | |
| pa_source_output_assert_ref(o); | |
| pa_source_output_assert_io_context(o); | |
| pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state)); | |
| pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec)); | |
| resampler_history = (uint64_t) PA_RESAMPLER_MAX_DELAY_USEC * o->source->sample_spec.rate / PA_USEC_PER_SEC; | |
| resampler_history *= pa_frame_size(&o->source->sample_spec); | |
| pa_memblockq_set_maxrewind(o->thread_info.delay_memblockq, resampler_history + nbytes); | |
| if (o->update_max_rewind) | |
| o->update_max_rewind(o, pa_resampler_result(o->thread_info.resampler, nbytes)); | |
| } | |
| /* Called from thread context */ | |
| pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) { | |
| pa_source_output_assert_ref(o); | |
| pa_source_output_assert_io_context(o); | |
| if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY)) | |
| usec = o->source->thread_info.fixed_latency; | |
| if (usec != (pa_usec_t) -1) | |
| 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); | |
| return usec; | |
| } | |
| /* Called from main context */ | |
| pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) { | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) { | |
| pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0); | |
| return usec; | |
| } | |
| /* If this source output is not realized yet or is being moved, we | |
| * have to touch the thread info data directly */ | |
| if (o->source) { | |
| if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY)) | |
| usec = pa_source_get_fixed_latency(o->source); | |
| if (usec != (pa_usec_t) -1) { | |
| pa_usec_t min_latency, max_latency; | |
| pa_source_get_latency_range(o->source, &min_latency, &max_latency); | |
| usec = PA_CLAMP(usec, min_latency, max_latency); | |
| } | |
| } | |
| o->thread_info.requested_source_latency = usec; | |
| return usec; | |
| } | |
| /* Called from main context */ | |
| pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) { | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) { | |
| pa_usec_t usec = 0; | |
| pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0); | |
| return usec; | |
| } | |
| /* If this source output is not realized yet or is being moved, we | |
| * have to touch the thread info data directly */ | |
| return o->thread_info.requested_source_latency; | |
| } | |
| /* Called from main context */ | |
| 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); | |
| pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MUTE_CHANGED], o); | |
| } | |
| void pa_source_output_set_property(pa_source_output *o, const char *key, const char *value) { | |
| char *old_value = NULL; | |
| const char *new_value; | |
| pa_assert(o); | |
| pa_assert(key); | |
| if (pa_proplist_contains(o->proplist, key)) { | |
| old_value = pa_xstrdup(pa_proplist_gets(o->proplist, key)); | |
| if (value && old_value && pa_streq(value, old_value)) | |
| goto finish; | |
| if (!old_value) | |
| old_value = pa_xstrdup("(data)"); | |
| } else { | |
| if (!value) | |
| goto finish; | |
| old_value = pa_xstrdup("(unset)"); | |
| } | |
| if (value) { | |
| pa_proplist_sets(o->proplist, key, value); | |
| new_value = value; | |
| } else { | |
| pa_proplist_unset(o->proplist, key); | |
| new_value = "(unset)"; | |
| } | |
| if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) { | |
| pa_log_debug("Source output %u: proplist[%s]: %s -> %s", o->index, key, old_value, new_value); | |
| 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); | |
| } | |
| finish: | |
| pa_xfree(old_value); | |
| } | |
| void pa_source_output_set_property_arbitrary(pa_source_output *o, const char *key, const uint8_t *value, size_t nbytes) { | |
| const uint8_t *old_value; | |
| size_t old_nbytes; | |
| const char *old_value_str; | |
| const char *new_value_str; | |
| pa_assert(o); | |
| pa_assert(key); | |
| if (pa_proplist_get(o->proplist, key, (const void **) &old_value, &old_nbytes) >= 0) { | |
| if (value && nbytes == old_nbytes && !memcmp(value, old_value, nbytes)) | |
| return; | |
| old_value_str = "(data)"; | |
| } else { | |
| if (!value) | |
| return; | |
| old_value_str = "(unset)"; | |
| } | |
| if (value) { | |
| pa_proplist_set(o->proplist, key, value, nbytes); | |
| new_value_str = "(data)"; | |
| } else { | |
| pa_proplist_unset(o->proplist, key); | |
| new_value_str = "(unset)"; | |
| } | |
| if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) { | |
| pa_log_debug("Source output %u: proplist[%s]: %s -> %s", o->index, key, old_value_str, new_value_str); | |
| 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 thread */ | |
| void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) { | |
| void *state; | |
| const char *key; | |
| const uint8_t *value; | |
| size_t nbytes; | |
| pa_source_output_assert_ref(o); | |
| pa_assert(p); | |
| pa_assert_ctl_context(); | |
| switch (mode) { | |
| case PA_UPDATE_SET: | |
| /* Delete everything that is not in p. */ | |
| for (state = NULL; (key = pa_proplist_iterate(o->proplist, &state));) { | |
| if (!pa_proplist_contains(p, key)) | |
| pa_source_output_set_property(o, key, NULL); | |
| } | |
| /* Fall through. */ | |
| case PA_UPDATE_REPLACE: | |
| for (state = NULL; (key = pa_proplist_iterate(p, &state));) { | |
| pa_proplist_get(p, key, (const void **) &value, &nbytes); | |
| pa_source_output_set_property_arbitrary(o, key, value, nbytes); | |
| } | |
| break; | |
| case PA_UPDATE_MERGE: | |
| for (state = NULL; (key = pa_proplist_iterate(p, &state));) { | |
| if (pa_proplist_contains(o->proplist, key)) | |
| continue; | |
| pa_proplist_get(p, key, (const void **) &value, &nbytes); | |
| pa_source_output_set_property_arbitrary(o, key, value, nbytes); | |
| } | |
| break; | |
| } | |
| } | |
| /* 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)); | |
| source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING); | |
| } | |
| /* Called from main context */ | |
| int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) { | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state)); | |
| pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE); | |
| if (o->sample_spec.rate == rate) | |
| return 0; | |
| o->sample_spec.rate = rate; | |
| pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL); | |
| pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index); | |
| return 0; | |
| } | |
| /* Called from main context */ | |
| pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) { | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| return o->actual_resample_method; | |
| } | |
| /* Called from main context */ | |
| 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; | |
| if (o->direct_on_input) | |
| return false; | |
| return true; | |
| } | |
| static bool find_filter_source_output(pa_source_output *target, pa_source *s) { | |
| unsigned PA_UNUSED 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; | |
| } | |
| static bool is_filter_source_moving(pa_source_output *o) { | |
| pa_source *source = o->source; | |
| if (!source) | |
| return false; | |
| while (source->output_from_master) { | |
| source = source->output_from_master->source; | |
| if (!source) | |
| return true; | |
| } | |
| return false; | |
| } | |
| /* Called from main context */ | |
| 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; | |
| if (dest->unlink_requested) | |
| return false; | |
| if (!pa_source_output_may_move(o)) | |
| 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 this source output is connected to a filter source that itself is | |
| * moving, then don't allow the move. Moving requires sending a message to | |
| * the IO thread of the old source, and if the old source is a filter | |
| * source that is moving, there's no IO thread associated to the old | |
| * source. */ | |
| if (is_filter_source_moving(o)) { | |
| pa_log_debug("Can't move output from filter source %s, because the filter source itself is currently moving.", | |
| o->source->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; | |
| } | |
| if (o->may_move_to) | |
| if (!o->may_move_to(o, dest)) | |
| return false; | |
| return true; | |
| } | |
| /* Called from main context */ | |
| int pa_source_output_start_move(pa_source_output *o) { | |
| pa_source *origin; | |
| int r; | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state)); | |
| pa_assert(o->source); | |
| if (!pa_source_output_may_move(o)) | |
| return -PA_ERR_NOTSUPPORTED; | |
| if ((r = pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o)) < 0) | |
| return r; | |
| pa_log_debug("Starting to move source output %u from '%s'", (unsigned) o->index, o->source->name); | |
| origin = o->source; | |
| pa_idxset_remove_by_data(o->source->outputs, o, NULL); | |
| if (o->state == 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); | |
| pa_cvolume_remap(&o->volume_factor_source, &o->source->channel_map, &o->channel_map); | |
| o->source = NULL; | |
| o->source_requested_by_application = false; | |
| pa_source_output_unref(o); | |
| return 0; | |
| } | |
| /* 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_source_output_set_reference_ratio(o, &new_volume); | |
| 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 this is a virtual source stream, we have to apply the source volume | |
| * to the source output. */ | |
| if (o->destination_source) { | |
| pa_cvolume vol; | |
| vol = o->destination_source->real_volume; | |
| pa_cvolume_remap(&vol, &o->destination_source->channel_map, &o->channel_map); | |
| pa_source_output_set_volume(o, &vol, o->destination_source->save_volume, true); | |
| } | |
| } | |
| } | |
| /* 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 the main thread. */ | |
| static void set_preferred_source(pa_source_output *o, const char *source_name) { | |
| pa_assert(o); | |
| if (pa_safe_streq(o->preferred_source, source_name)) | |
| return; | |
| pa_log_debug("Source output %u: preferred_source: %s -> %s", | |
| o->index, o->preferred_source ? o->preferred_source : "(unset)", source_name ? source_name : "(unset)"); | |
| pa_xfree(o->preferred_source); | |
| o->preferred_source = pa_xstrdup(source_name); | |
| pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT | PA_SUBSCRIPTION_EVENT_CHANGE, o->index); | |
| pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PREFERRED_SOURCE_CHANGED], o); | |
| } | |
| /* 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_assert(!o->source); | |
| pa_source_assert_ref(dest); | |
| if (!pa_source_output_may_move_to(o, dest)) | |
| return -PA_ERR_NOTSUPPORTED; | |
| 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; | |
| } | |
| if (!(o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) && | |
| !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec)) { | |
| /* try to change dest source format and rate if possible without glitches. | |
| module-suspend-on-idle resumes destination source with | |
| SOURCE_OUTPUT_MOVE_FINISH hook */ | |
| pa_log_info("Trying to change sample spec"); | |
| pa_source_reconfigure(dest, &o->sample_spec, pa_source_output_is_passthrough(o)); | |
| } | |
| if (o->moving) | |
| o->moving(o, dest); | |
| o->source = dest; | |
| /* save == true, means user is calling the move_to() and want to | |
| save the preferred_source */ | |
| if (save) { | |
| if (dest == dest->core->default_source) | |
| set_preferred_source(o, NULL); | |
| else | |
| set_preferred_source(o, dest->name); | |
| } | |
| 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 (o->state == PA_SOURCE_OUTPUT_CORKED) | |
| o->source->n_corked++; | |
| pa_source_output_update_resampler(o); | |
| pa_source_update_status(dest); | |
| update_volume_due_to_moving(o, 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); | |
| pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name); | |
| /* Notify everyone */ | |
| pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o); | |
| pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index); | |
| return 0; | |
| } | |
| /* Called from main context */ | |
| void pa_source_output_fail_move(pa_source_output *o) { | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state)); | |
| pa_assert(!o->source); | |
| /* Check if someone wants this source output? */ | |
| if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL], o) == PA_HOOK_STOP) | |
| return; | |
| /* Can we move the source output to the default source? */ | |
| if (o->core->rescue_streams && pa_source_output_may_move_to(o, o->core->default_source)) { | |
| if (pa_source_output_finish_move(o, o->core->default_source, false) >= 0) | |
| return; | |
| } | |
| if (o->moving) | |
| o->moving(o, NULL); | |
| pa_source_output_kill(o); | |
| } | |
| /* Called from main context */ | |
| int pa_source_output_move_to(pa_source_output *o, pa_source *dest, bool save) { | |
| int r; | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state)); | |
| pa_assert(o->source); | |
| pa_source_assert_ref(dest); | |
| if (dest == o->source) | |
| return 0; | |
| if (!pa_source_output_may_move_to(o, dest)) | |
| return -PA_ERR_NOTSUPPORTED; | |
| pa_source_output_ref(o); | |
| if ((r = pa_source_output_start_move(o)) < 0) { | |
| pa_source_output_unref(o); | |
| return r; | |
| } | |
| if ((r = pa_source_output_finish_move(o, dest, save)) < 0) { | |
| pa_source_output_fail_move(o); | |
| pa_source_output_unref(o); | |
| return r; | |
| } | |
| pa_source_output_unref(o); | |
| return 0; | |
| } | |
| /* Called from IO thread context except when cork() is called without a valid source. */ | |
| void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) { | |
| pa_source_output_assert_ref(o); | |
| if (state == o->thread_info.state) | |
| return; | |
| if (o->state_change) | |
| o->state_change(o, state); | |
| o->thread_info.state = state; | |
| } | |
| /* Called from IO thread context, except when it is not */ | |
| int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) { | |
| pa_source_output *o = PA_SOURCE_OUTPUT(mo); | |
| pa_source_output_assert_ref(o); | |
| switch (code) { | |
| case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: { | |
| pa_usec_t *r = userdata; | |
| r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec); | |
| r[0] += pa_resampler_get_delay_usec(o->thread_info.resampler); | |
| r[1] += pa_source_get_latency_within_thread(o->source, false); | |
| return 0; | |
| } | |
| case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE: | |
| o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata); | |
| pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata)); | |
| return 0; | |
| 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: { | |
| pa_usec_t *usec = userdata; | |
| *usec = pa_source_output_set_requested_latency_within_thread(o, *usec); | |
| return 0; | |
| } | |
| case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: { | |
| pa_usec_t *r = userdata; | |
| *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; | |
| } | |
| /* Called from main context */ | |
| void pa_source_output_send_event(pa_source_output *o, const char *event, pa_proplist *data) { | |
| pa_proplist *pl = NULL; | |
| pa_source_output_send_event_hook_data hook_data; | |
| pa_source_output_assert_ref(o); | |
| pa_assert_ctl_context(); | |
| pa_assert(event); | |
| if (!o->send_event) | |
| return; | |
| if (!data) | |
| data = pl = pa_proplist_new(); | |
| hook_data.source_output = o; | |
| hook_data.data = data; | |
| hook_data.event = event; | |
| if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT], &hook_data) < 0) | |
| goto finish; | |
| o->send_event(o, event, data); | |
| finish: | |
| 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 sample spec might have changed */ | |
| int pa_source_output_update_resampler(pa_source_output *o) { | |
| pa_resampler *new_resampler; | |
| char *memblockq_name; | |
| size_t resampler_history; | |
| 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->core->lfe_crossover_freq, | |
| 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->remixing_use_all_sink_channels ? 0 : PA_RESAMPLER_NO_FILL_SINK) | | |
| (o->core->remixing_produce_lfe ? PA_RESAMPLER_PRODUCE_LFE : 0) | | |
| (o->core->remixing_consume_lfe ? PA_RESAMPLER_CONSUME_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); | |
| resampler_history = (uint64_t) PA_RESAMPLER_MAX_DELAY_USEC * o->source->sample_spec.rate / PA_USEC_PER_SEC; | |
| resampler_history *= pa_frame_size(&o->source->sample_spec); | |
| pa_memblockq_set_maxrewind(o->thread_info.delay_memblockq, resampler_history + pa_source_get_max_rewind(o->source)); | |
| 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 IO thread. */ | |
| void pa_source_output_attach(pa_source_output *o) { | |
| pa_assert(o); | |
| pa_assert(!o->thread_info.attached); | |
| o->thread_info.attached = true; | |
| if (o->attach) | |
| o->attach(o); | |
| } | |
| /* Called from the IO thread. */ | |
| void pa_source_output_detach(pa_source_output *o) { | |
| pa_assert(o); | |
| if (!o->thread_info.attached) | |
| return; | |
| o->thread_info.attached = false; | |
| if (o->detach) | |
| o->detach(o); | |
| } | |
| /* 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); | |
| pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_VOLUME_CHANGED], o); | |
| } | |
| /* Called from the main thread. */ | |
| void pa_source_output_set_reference_ratio(pa_source_output *o, const pa_cvolume *ratio) { | |
| pa_cvolume old_ratio; | |
| char old_ratio_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX]; | |
| char new_ratio_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX]; | |
| pa_assert(o); | |
| pa_assert(ratio); | |
| old_ratio = o->reference_ratio; | |
| if (pa_cvolume_equal(ratio, &old_ratio)) | |
| return; | |
| o->reference_ratio = *ratio; | |
| if (!PA_SOURCE_OUTPUT_IS_LINKED(o->state)) | |
| return; | |
| pa_log_debug("Source output %u reference ratio changed from %s to %s.", o->index, | |
| pa_cvolume_snprint_verbose(old_ratio_str, sizeof(old_ratio_str), &old_ratio, &o->channel_map, true), | |
| pa_cvolume_snprint_verbose(new_ratio_str, sizeof(new_ratio_str), ratio, &o->channel_map, true)); | |
| } | |
| /* Called from the main thread. | |
| * | |
| * This is called when e.g. module-stream-restore wants to change the preferred | |
| * source. As a side effect the stream is moved to the new preferred source. | |
| * Note that things can work also in the other direction: if the user moves | |
| * a stream, as a side effect the preferred source is changed. This could cause | |
| * an infinite loop, but it's avoided by these two measures: | |
| * - When pa_source_output_set_preferred_source() is called, it calls | |
| * pa_source_output_move_to() with save=false, which avoids the recursive | |
| * pa_source_output_set_preferred_source() call. | |
| * - When the primary operation is to move a stream, | |
| * pa_source_output_finish_move() calls set_preferred_source() instead of | |
| * pa_source_output_set_preferred_source(). set_preferred_source() doesn't | |
| * move the stream as a side effect. | |
| */ | |
| void pa_source_output_set_preferred_source(pa_source_output *o, pa_source *s) { | |
| pa_assert(o); | |
| if (s) { | |
| set_preferred_source(o, s->name); | |
| pa_source_output_move_to(o, s, false); | |
| } else { | |
| set_preferred_source(o, NULL); | |
| pa_source_output_move_to(o, o->core->default_source, false); | |
| } | |
| } |