X-Git-Url: https://code.delx.au/pulseaudio/blobdiff_plain/f44ba092651aa75055e109e04b4164ea92ae7fdc..29cb778dcc3ceff2bb16520a16388cc21cd32884:/src/pulsecore/source-output.c diff --git a/src/pulsecore/source-output.c b/src/pulsecore/source-output.c index 230b416d..d4f0367e 100644 --- a/src/pulsecore/source-output.c +++ b/src/pulsecore/source-output.c @@ -1,18 +1,18 @@ -/* $Id$ */ - /*** 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 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 @@ -24,218 +24,837 @@ #endif #include -#include #include #include #include #include +#include +#include #include #include +#include +#include #include "source-output.h" -#define CHECK_VALIDITY_RETURN_NULL(condition) \ -do {\ -if (!(condition)) \ - return NULL; \ -} while (0) +#define MEMBLOCKQ_MAXLENGTH (32*1024*1024) + +static PA_DEFINE_CHECK_TYPE(pa_source_output, pa_msgobject); + +static void source_output_free(pa_object* mo); + +pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_data *data) { + pa_assert(data); + + memset(data, 0, sizeof(*data)); + data->resample_method = PA_RESAMPLER_INVALID; + data->proplist = pa_proplist_new(); + + 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; +} + +void pa_source_output_new_data_done(pa_source_output_new_data *data) { + pa_assert(data); + + 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->attach = NULL; + o->detach = NULL; + o->suspend = NULL; + o->moved = NULL; + o->kill = NULL; + o->get_latency = NULL; + o->state_change = NULL; + o->may_move_to = NULL; +} +/* Called from main context */ pa_source_output* pa_source_output_new( - pa_source *s, - const char *driver, - const char *name, - const pa_sample_spec *spec, - const pa_channel_map *map, - int resample_method) { - + pa_core *core, + pa_source_output_new_data *data, + pa_source_output_flags_t flags) { + pa_source_output *o; pa_resampler *resampler = NULL; - int r; - char st[256]; - pa_channel_map tmap; - - assert(s); - assert(spec); - assert(s->state == PA_SOURCE_RUNNING); - - CHECK_VALIDITY_RETURN_NULL(pa_sample_spec_valid(spec)); - - if (!map) - map = pa_channel_map_init_auto(&tmap, spec->channels, PA_CHANNEL_MAP_DEFAULT); - - CHECK_VALIDITY_RETURN_NULL(map && pa_channel_map_valid(map)); - CHECK_VALIDITY_RETURN_NULL(map->channels == spec->channels); - CHECK_VALIDITY_RETURN_NULL(!driver || pa_utf8_valid(driver)); - CHECK_VALIDITY_RETURN_NULL(pa_utf8_valid(name)); - - if (pa_idxset_size(s->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) { - pa_log(__FILE__": Failed to create source output: too many outputs per source."); + char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX]; + + pa_assert(core); + pa_assert(data); + + if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], data) < 0) return NULL; + + pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver)); + + if (!data->source) + data->source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE); + + pa_return_null_if_fail(data->source); + pa_return_null_if_fail(pa_source_get_state(data->source) != PA_SOURCE_UNLINKED); + + pa_return_null_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of); + + if (!data->sample_spec_is_set) + data->sample_spec = data->source->sample_spec; + + pa_return_null_if_fail(pa_sample_spec_valid(&data->sample_spec)); + + 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); + } + + pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map)); + pa_return_null_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec)); + + if (flags & PA_SOURCE_OUTPUT_FIX_FORMAT) + data->sample_spec.format = data->source->sample_spec.format; + + if (flags & PA_SOURCE_OUTPUT_FIX_RATE) + data->sample_spec.rate = data->source->sample_spec.rate; + + if (flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) { + data->sample_spec.channels = data->source->sample_spec.channels; + data->channel_map = data->source->channel_map; } - if (resample_method == PA_RESAMPLER_INVALID) - resample_method = s->core->resample_method; + pa_assert(pa_sample_spec_valid(&data->sample_spec)); + pa_assert(pa_channel_map_valid(&data->channel_map)); + + if (data->resample_method == PA_RESAMPLER_INVALID) + data->resample_method = core->resample_method; + + pa_return_null_if_fail(data->resample_method < PA_RESAMPLER_MAX); + + if (data->client) + pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist); + + if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data) < 0) + return NULL; + + 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 NULL; + } - if (!pa_sample_spec_equal(&s->sample_spec, spec) || !pa_channel_map_equal(&s->channel_map, map)) - if (!(resampler = pa_resampler_new(&s->sample_spec, &s->channel_map, spec, map, s->core->memblock_stat, resample_method))) + if ((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 (!(resampler = pa_resampler_new( + core->mempool, + &data->source->sample_spec, &data->source->channel_map, + &data->sample_spec, &data->channel_map, + data->resample_method, + ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) | + ((flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) | + (core->disable_remixing || (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 NULL; - - o = pa_xnew(pa_source_output, 1); - o->ref = 1; - o->state = PA_SOURCE_OUTPUT_RUNNING; - o->name = pa_xstrdup(name); - o->driver = pa_xstrdup(driver); - o->owner = NULL; - o->source = s; - o->client = NULL; - - o->sample_spec = *spec; - o->channel_map = *map; + } - o->push = NULL; - o->kill = NULL; - o->get_latency = NULL; + data->resample_method = pa_resampler_get_method(resampler); + } + + 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 = 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->client = data->client; + + o->resample_method = data->resample_method; + o->sample_spec = data->sample_spec; + o->channel_map = data->channel_map; + + o->direct_on_input = data->direct_on_input; + + reset_callbacks(o); o->userdata = NULL; - - o->resampler = resampler; - - assert(s->core); - r = pa_idxset_put(s->core->source_outputs, o, &o->index); - assert(r == 0 && o->index != PA_IDXSET_INVALID); - r = pa_idxset_put(s->outputs, o, NULL); - assert(r == 0); - - pa_sample_spec_snprint(st, sizeof(st), spec); - pa_log_info(__FILE__": created %u \"%s\" on %u with sample spec \"%s\"", o->index, o->name, s->index, st); - - pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index); - - return o; -} - -void pa_source_output_disconnect(pa_source_output*o) { - assert(o); - assert(o->state != PA_SOURCE_OUTPUT_DISCONNECTED); - assert(o->source); - assert(o->source->core); - - pa_idxset_remove_by_data(o->source->core->source_outputs, o, NULL); - pa_idxset_remove_by_data(o->source->outputs, o, NULL); - pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index); - o->source = 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.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( + 0, + MEMBLOCKQ_MAXLENGTH, + 0, + pa_frame_size(&o->source->sample_spec), + 0, + 1, + 0, + &o->source->silence); + + 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); + + pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %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)); + + /* Don't forget to call pa_source_output_put! */ - o->push = NULL; - o->kill = NULL; - o->get_latency = NULL; - - o->state = PA_SOURCE_OUTPUT_DISCONNECTED; + return o; } -static void source_output_free(pa_source_output* o) { - assert(o); +/* Called from main context */ +static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) { + pa_assert(o); - if (o->state != PA_SOURCE_OUTPUT_DISCONNECTED) - pa_source_output_disconnect(o); + 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 int source_output_set_state(pa_source_output *o, pa_source_output_state_t state) { + pa_assert(o); + + if (o->state == state) + return 0; + + 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) + pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o); + + pa_source_update_status(o->source); + + return 0; +} + +/* Called from main context */ +void pa_source_output_unlink(pa_source_output*o) { + pa_bool_t linked; + pa_assert(o); + + /* 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 (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 (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); + } + + if (o->source) { + pa_source_update_status(o->source); + o->source = NULL; + } + + 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(pa_source_output_refcnt(o) == 0); - pa_log_info(__FILE__": freed %u \"%s\"", o->index, o->name); - - if (o->resampler) - pa_resampler_free(o->resampler); + 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_assert(!o->thread_info.attached); + + 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->proplist) + pa_proplist_free(o->proplist); - pa_xfree(o->name); pa_xfree(o->driver); pa_xfree(o); } -void pa_source_output_unref(pa_source_output* o) { - assert(o); - assert(o->ref >= 1); +/* 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(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; - if (!(--o->ref)) - source_output_free(o); + update_n_corked(o, state); + o->state = state; + + 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); } -pa_source_output* pa_source_output_ref(pa_source_output *o) { - assert(o); - assert(o->ref >= 1); - - o->ref++; - return o; +/* Called from main context */ +void pa_source_output_kill(pa_source_output*o) { + pa_source_output_assert_ref(o); + 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 }; -void pa_source_output_kill(pa_source_output*o) { - assert(o); - assert(o->ref >= 1); + pa_source_output_assert_ref(o); + 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->kill) - o->kill(o); + 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) { - pa_memchunk rchunk; - - assert(o); - assert(chunk); - assert(chunk->length); - assert(o->push); - - if (o->state == PA_SOURCE_OUTPUT_CORKED) - return; - - if (!o->resampler) { - o->push(o, chunk); + size_t length; + size_t limit, mbs = 0; + + pa_source_output_assert_ref(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); } - pa_resampler_run(o->resampler, chunk, &rchunk); - if (!rchunk.length) + limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind; + + /* Implement the delay queue */ + while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) { + pa_memchunk qchunk; + + 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); + + 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_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state)); + pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec)); + + if (nbytes <= 0) return; - - assert(rchunk.memblock); - o->push(o, &rchunk); - pa_memblock_unref(rchunk.memblock); + + if (o->process_rewind) { + pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0); + + if (o->thread_info.resampler) + nbytes = pa_resampler_result(o->thread_info.resampler, nbytes); + + pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes); + + if (nbytes > 0) + o->process_rewind(o, nbytes); + + if (o->thread_info.resampler) + pa_resampler_reset(o->thread_info.resampler); + + } else + pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes); } -void pa_source_output_set_name(pa_source_output *o, const char *name) { - assert(o); - assert(o->ref >= 1); - - pa_xfree(o->name); - o->name = pa_xstrdup(name); +/* Called from thread context */ +void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) { + pa_source_output_assert_ref(o); + pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state)); + pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec)); - pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index); + if (o->update_max_rewind) + o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes); } -pa_usec_t pa_source_output_get_latency(pa_source_output *o) { - assert(o); - assert(o->ref >= 1); - - if (o->get_latency) - return o->get_latency(o); +/* Called from thread context */ +static pa_usec_t fixup_latency(pa_source *s, pa_usec_t usec) { + pa_source_assert_ref(s); + + if (usec == (pa_usec_t) -1) + return usec; + + if (s->thread_info.max_latency > 0 && usec > s->thread_info.max_latency) + usec = s->thread_info.max_latency; + + if (s->thread_info.min_latency > 0 && usec < s->thread_info.min_latency) + usec = s->thread_info.min_latency; + + return usec; +} + +/* 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); + + usec = fixup_latency(o->source, usec); + o->thread_info.requested_source_latency = usec; + pa_source_invalidate_requested_latency(o->source); + + 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); + + if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) + pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0); + else + /* If this source output is not realized yet, we have to touch + * the thread info data directly */ + + 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_usec_t usec = 0; + + pa_source_output_assert_ref(o); + + if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) + pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0); + else + /* If this source output is not realized yet, we have to touch + * the thread info data directly */ + usec = o->thread_info.requested_source_latency; + + return usec; +} + +/* Called from main context */ +void pa_source_output_cork(pa_source_output *o, pa_bool_t b) { + pa_source_output_assert_ref(o); + 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(PA_SOURCE_OUTPUT_IS_LINKED(o->state)); + pa_return_val_if_fail(o->thread_info.resampler, -1); + + 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; } -void pa_source_output_cork(pa_source_output *o, int b) { - assert(o); - assert(o->ref >= 1); +/* Called from main context */ +void pa_source_output_set_name(pa_source_output *o, const char *name) { + const char *old; + pa_source_output_assert_ref(o); + + if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME)) + return; + + old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME); - if (o->state == PA_SOURCE_OUTPUT_DISCONNECTED) + if (old && name && !strcmp(old, name)) return; - - o->state = b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING; + + if (name) + pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name); + else + pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME); + + 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 thread */ +pa_bool_t pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) { + + pa_source_output_assert_ref(o); + + pa_proplist_update(o->proplist, mode, p); + + if (PA_SINK_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); + } + + return TRUE; +} + +/* Called from main context */ pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) { - assert(o); - assert(o->ref >= 1); - - if (!o->resampler) - return PA_RESAMPLER_INVALID; + pa_source_output_assert_ref(o); + + return o->resample_method; +} + +/* Called from main context */ +pa_bool_t pa_source_output_may_move(pa_source_output *o) { + pa_source_output_assert_ref(o); + 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; +} + +/* Called from main context */ +pa_bool_t 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 (!pa_source_output_may_move(o)) + 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; + + pa_source_output_assert_ref(o); + pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state)); + pa_assert(o->source); + + if (!pa_source_output_may_move(o)) + return -1; + + if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o) < 0) + return -1; + + origin = o->source; + + pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0); + + if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED) + pa_assert_se(origin->n_corked-- >= 1); + + pa_idxset_remove_by_data(o->source->outputs, o, NULL); + o->source = NULL; + + pa_source_update_status(origin); + + return 0; +} + +/* Called from main context */ +int pa_source_output_finish_move(pa_source_output *o, pa_source *dest) { + pa_resampler *new_resampler; + + pa_source_output_assert_ref(o); + pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state)); + pa_assert(!o->source); + pa_source_assert_ref(dest); + + o->source = dest; + pa_idxset_put(o->source->outputs, o, NULL); + + if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED) + o->source->n_corked++; + + 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; + + 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)) { + + /* Okey, we need a new resampler for the new source */ + + if (!(new_resampler = pa_resampler_new( + o->core->mempool, + &dest->sample_spec, &dest->channel_map, + &o->sample_spec, &o->channel_map, + o->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 -1; + } + } else + new_resampler = NULL; + + /* 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_memblockq_free(o->thread_info.delay_memblockq); + + 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); + } + + pa_source_update_status(dest); + 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 */ + if (o->moved) + o->moved(o); + + 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 */ +int pa_source_output_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_assert(o->source); + pa_source_assert_ref(dest); + + if (dest == o->source) + return 0; + + if (!pa_source_output_may_move_to(o, dest)) + return -1; + + if (pa_source_output_start_move(o) < 0) + return -1; + + if (pa_source_output_finish_move(o, dest) < 0) + return -1; + + return 0; +} + +/* Called from IO thread context */ +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; + pa_usec_t source_usec = 0; + + r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec); + + if (o->source->parent.process_msg(PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_GET_LATENCY, &source_usec, 0, NULL) >= 0) + r[1] += source_usec; + + 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; + } + } - return pa_resampler_get_method(o->resampler); + return -1; }