int pa__init(pa_module*m) { struct userdata *u = NULL; pa_sample_spec ss; pa_channel_map map; pa_modargs *ma = NULL; pa_sink_new_data data; size_t nbytes; pa_assert(m); if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { pa_log("Failed to parse module arguments."); goto fail; } ss = m->core->default_sample_spec; map = m->core->default_channel_map; if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) { pa_log("Invalid sample format specification or channel map"); goto fail; } m->userdata = u = pa_xnew0(struct userdata, 1); u->core = m->core; u->module = m; u->rtpoll = pa_rtpoll_new(); if (pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll) < 0) { pa_log("pa_thread_mq_init() failed."); goto fail; } pa_sink_new_data_init(&data); data.driver = __FILE__; data.module = m; pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME)); pa_sink_new_data_set_sample_spec(&data, &ss); pa_sink_new_data_set_channel_map(&data, &map); pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, _("Null Output")); pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "abstract"); if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) { pa_log("Invalid properties"); pa_sink_new_data_done(&data); goto fail; } u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY|PA_SINK_DYNAMIC_LATENCY); pa_sink_new_data_done(&data); if (!u->sink) { pa_log("Failed to create sink object."); goto fail; } u->sink->parent.process_msg = sink_process_msg; u->sink->update_requested_latency = sink_update_requested_latency_cb; u->sink->userdata = u; pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq); pa_sink_set_rtpoll(u->sink, u->rtpoll); u->block_usec = BLOCK_USEC; nbytes = pa_usec_to_bytes(u->block_usec, &u->sink->sample_spec); pa_sink_set_max_rewind(u->sink, nbytes); pa_sink_set_max_request(u->sink, nbytes); if (!(u->thread = pa_thread_new("null-sink", thread_func, u))) { pa_log("Failed to create thread."); goto fail; } pa_sink_set_latency_range(u->sink, 0, BLOCK_USEC); pa_sink_put(u->sink); pa_modargs_free(ma); return 0; fail: if (ma) pa_modargs_free(ma); pa__done(m); return -1; }
int pa__init(pa_module *module) { struct context *context = NULL; pa_sample_spec ss; pa_channel_map cmap; pa_modargs *modargs = NULL; pa_sink_new_data data; size_t nbytes; pa_log("Loading module module-freerds-sink."); pa_assert(module); if (!(modargs = pa_modargs_new(module->argument, valid_modargs))) { pa_log("Failed to parse module arguments."); goto FAIL; } ss = module->core->default_sample_spec; cmap = module->core->default_channel_map; if (pa_modargs_get_sample_spec_and_channel_map(modargs, &ss, &cmap, PA_CHANNEL_MAP_DEFAULT) < 0) { pa_log("Invalid sample format specification or channel map"); goto FAIL; } context = pa_xnew0(struct context, 1); module->userdata = (void *) context; context->core = module->core; context->module = module; context->rtpoll = pa_rtpoll_new(); pa_thread_mq_init(&context->thread_mq, module->core->mainloop, context->rtpoll); pa_sink_new_data_init(&data); data.driver = __FILE__; data.module = module; pa_sink_new_data_set_name(&data, pa_modargs_get_value(modargs, "sink_name", DEFAULT_SINK_NAME)); pa_sink_new_data_set_sample_spec(&data, &ss); pa_sink_new_data_set_channel_map(&data, &cmap); pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "FreeRDS sink"); pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "abstract"); if (pa_modargs_get_proplist(modargs, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) { pa_log("Invalid properties"); pa_sink_new_data_done(&data); goto FAIL; } context->sink = pa_sink_new(module->core, &data, PA_SINK_LATENCY | PA_SINK_DYNAMIC_LATENCY); pa_sink_new_data_done(&data); if (!context->sink) { pa_log("Failed to create sink object."); goto FAIL; } context->sink->parent.process_msg = sink_process_msg; context->sink->update_requested_latency = sink_update_requested_latency_cb; context->sink->userdata = context; pa_sink_set_asyncmsgq(context->sink, context->thread_mq.inq); pa_sink_set_rtpoll(context->sink, context->rtpoll); context->block_usec = BLOCK_USEC; pa_log_debug("3 block_usec %lu", context->block_usec); nbytes = pa_usec_to_bytes(context->block_usec, &context->sink->sample_spec); pa_sink_set_max_rewind(context->sink, nbytes); pa_sink_set_max_request(context->sink, nbytes); #if defined(PA_CHECK_VERSION) #if PA_CHECK_VERSION(0, 9, 22) if (!(context->thread = pa_thread_new("freerds-sink", thread_func, context))) #else if (!(context->thread = pa_thread_new(thread_func, context))) #endif #else if (!(context->thread = pa_thread_new(thread_func, context))) #endif { pa_log("Failed to create thread."); goto FAIL; } pa_sink_put(context->sink); pa_modargs_free(modargs); return 0; FAIL: if (modargs) { pa_modargs_free(modargs); } pa__done(module); return -1; }
int pa__init(pa_module*m) { struct userdata *u; pa_modargs *ma; pa_sink_new_data data; int backend_state; int ret; char strbuf[100]; pa_assert(m); if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { pa_log("Failed to parse module arguments."); goto fail; } ss = m->core->default_sample_spec; map = m->core->default_channel_map; /* user arguments override these */ if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) { pa_log("Invalid sample format specification or channel map"); goto fail; } /* Xen Basic init */ xsh = xs_domain_open(); if (xsh==NULL) { pa_log("xs_domain_open failed"); goto fail; } set_state(XenbusStateUnknown); xch = xc_interface_open(NULL, NULL, 0); if (xch==0) { pa_log("xc_interface_open failed"); goto fail; } xce = xc_evtchn_open(NULL, 0); if (xce==0) { pa_log("xc_evtchn_open failed"); goto fail; } /* use only dom0 as the backend for now */ xen_evtchn_port = xc_evtchn_bind_unbound_port(xce, 0); if (xen_evtchn_port == 0) { pa_log("xc_evtchn_bind_unbound_port failed"); } /* get grant reference & map locally */ if (alloc_gref(&gref, (void**)&ioring)) { pa_log("alloc_gref failed"); }; device_id = 0; /* hardcoded for now */ if (register_backend_state_watch()) { pa_log("Xen sink: register xenstore watch failed"); }; publish_param_int("event-channel", xen_evtchn_port); publish_param_int("ring-ref", gref.gref_ids[0]); /* let's ask for something absurd and deal with rejection */ ss.rate = 192000; publish_spec(&ss); ret=0; while (!ret) { backend_state = wait_for_backend_state_change(); if (backend_state == STATE_UNDEFINED) { pa_log("Xen Backend is taking long to respond, still waiting..."); continue; } else if (backend_state == -1) { pa_log("Error while waiting for backend: %s", strerror(errno)); break; goto fail; } ret = state_callbacks[backend_state](); } if (ret!=NEGOTIATION_OK) { pa_log("Negotiation with Xen backend failed!"); goto fail; } pa_sample_spec_snprint(strbuf, 100, &ss); pa_log_debug("Negotiation ended, the result was: %s", strbuf); /* End of Phase 2, begin playback cycle */ u = pa_xnew0(struct userdata, 1); u->core = m->core; u->module = m; m->userdata = u; pa_memchunk_reset(&u->memchunk); u->rtpoll = pa_rtpoll_new(); pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll); u->write_type = 0; /* init ring buffer */ ioring->prod_indx = ioring->cons_indx = 0; ioring->usable_buffer_space = BUFSIZE - BUFSIZE % pa_frame_size(&ss); pa_sink_new_data_init(&data); data.driver = __FILE__; data.module = m; pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME)); pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, "xensink"); pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Xen PV audio sink"); pa_sink_new_data_set_sample_spec(&data, &ss); pa_sink_new_data_set_channel_map(&data, &map); if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) { pa_log("Invalid properties"); pa_sink_new_data_done(&data); goto fail; } u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY); pa_sink_new_data_done(&data); if (!u->sink) { pa_log("Failed to create sink."); goto fail; } u->sink->parent.process_msg = sink_process_msg; u->sink->userdata = u; pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq); pa_sink_set_rtpoll(u->sink, u->rtpoll); pa_sink_set_max_request(u->sink, ioring->usable_buffer_space); pa_sink_set_fixed_latency(u->sink, pa_bytes_to_usec(ioring->usable_buffer_space, &u->sink->sample_spec)); u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1); if (!(u->thread = pa_thread_new("xenpv-sink", thread_func, u))) { pa_log("Failed to create thread."); goto fail; } pa_sink_put(u->sink); pa_modargs_free(ma); return 0; fail: if (ma) pa_modargs_free(ma); pa__done(m); return -1; }
int pa__init(pa_module*m) { struct userdata *u = NULL; pa_sample_spec ss; pa_channel_map map; pa_modargs *ma = NULL; pa_sink_new_data data; size_t nbytes; pa_assert(m); if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { pa_log("Failed to parse module arguments."); goto fail; } ss = m->core->default_sample_spec; map = m->core->default_channel_map; if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) { pa_log("Invalid sample format specification or channel map"); goto fail; } m->userdata = u = pa_xnew0(struct userdata, 1); u->core = m->core; u->module = m; u->rtpoll = pa_rtpoll_new(); pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll); pa_sink_new_data_init(&data); data.driver = __FILE__; data.module = m; pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME)); pa_sink_new_data_set_sample_spec(&data, &ss); pa_sink_new_data_set_channel_map(&data, &map); pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "xrdp sink"); pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "abstract"); if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) { pa_log("Invalid properties"); pa_sink_new_data_done(&data); goto fail; } u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY | PA_SINK_DYNAMIC_LATENCY); pa_sink_new_data_done(&data); if (!u->sink) { pa_log("Failed to create sink object."); goto fail; } u->sink->parent.process_msg = sink_process_msg; u->sink->update_requested_latency = sink_update_requested_latency_cb; u->sink->userdata = u; pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq); pa_sink_set_rtpoll(u->sink, u->rtpoll); u->block_usec = BLOCK_USEC; nbytes = pa_usec_to_bytes(u->block_usec, &u->sink->sample_spec); pa_sink_set_max_rewind(u->sink, nbytes); pa_sink_set_max_request(u->sink, nbytes); u->display_num = get_display_num_from_display(getenv("DISPLAY")); #if defined(PA_CHECK_VERSION) #if PA_CHECK_VERSION(0, 9, 22) if (!(u->thread = pa_thread_new("xrdp-sink", thread_func, u))) { #else if (!(u->thread = pa_thread_new(thread_func, u))) { #endif #else if (!(u->thread = pa_thread_new(thread_func, u))) { #endif pa_log("Failed to create thread."); goto fail; } pa_sink_put(u->sink); pa_modargs_free(ma); return 0; fail: if (ma) { pa_modargs_free(ma); } pa__done(m); return -1; } int pa__get_n_used(pa_module *m) { struct userdata *u; pa_assert(m); pa_assert_se(u = m->userdata); return pa_sink_linked_by(u->sink); } void pa__done(pa_module*m) { struct userdata *u; pa_assert(m); if (!(u = m->userdata)) { return; } if (u->sink) { pa_sink_unlink(u->sink); } if (u->thread) { pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL); pa_thread_free(u->thread); } pa_thread_mq_done(&u->thread_mq); if (u->sink) { pa_sink_unref(u->sink); } if (u->rtpoll) { pa_rtpoll_free(u->rtpoll); } pa_xfree(u); }
int pa__init(pa_module*m) { struct userdata *u; pa_sample_spec ss, sink_input_ss; pa_channel_map map, sink_input_map; pa_modargs *ma; pa_sink *master=NULL; pa_sink_input_new_data sink_input_data; pa_sink_new_data sink_data; bool use_volume_sharing = true; bool force_flat_volume = false; pa_memchunk silence; const char *hrir_file; unsigned i, j, found_channel_left, found_channel_right; float hrir_sum, hrir_max; float *hrir_data; pa_sample_spec hrir_ss; pa_channel_map hrir_map; pa_sample_spec hrir_temp_ss; pa_memchunk hrir_temp_chunk, hrir_temp_chunk_resampled; pa_resampler *resampler; size_t hrir_copied_length, hrir_total_length; hrir_temp_chunk.memblock = NULL; hrir_temp_chunk_resampled.memblock = NULL; pa_assert(m); if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { pa_log("Failed to parse module arguments."); goto fail; } if (!(master = pa_namereg_get(m->core, pa_modargs_get_value(ma, "master", NULL), PA_NAMEREG_SINK))) { pa_log("Master sink not found"); goto fail; } pa_assert(master); u = pa_xnew0(struct userdata, 1); u->module = m; m->userdata = u; /* Initialize hrir and input buffer */ /* this is the hrir file for the left ear! */ if (!(hrir_file = pa_modargs_get_value(ma, "hrir", NULL))) { pa_log("The mandatory 'hrir' module argument is missing."); goto fail; } if (pa_sound_file_load(master->core->mempool, hrir_file, &hrir_temp_ss, &hrir_map, &hrir_temp_chunk, NULL) < 0) { pa_log("Cannot load hrir file."); goto fail; } /* sample spec / map of hrir */ hrir_ss.format = PA_SAMPLE_FLOAT32; hrir_ss.rate = master->sample_spec.rate; hrir_ss.channels = hrir_temp_ss.channels; /* sample spec of sink */ ss = hrir_ss; map = hrir_map; if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) { pa_log("Invalid sample format specification or channel map"); goto fail; } ss.format = PA_SAMPLE_FLOAT32; hrir_ss.rate = ss.rate; u->channels = ss.channels; if (pa_modargs_get_value_boolean(ma, "use_volume_sharing", &use_volume_sharing) < 0) { pa_log("use_volume_sharing= expects a boolean argument"); goto fail; } if (pa_modargs_get_value_boolean(ma, "force_flat_volume", &force_flat_volume) < 0) { pa_log("force_flat_volume= expects a boolean argument"); goto fail; } if (use_volume_sharing && force_flat_volume) { pa_log("Flat volume can't be forced when using volume sharing."); goto fail; } /* sample spec / map of sink input */ pa_channel_map_init_stereo(&sink_input_map); sink_input_ss.channels = 2; sink_input_ss.format = PA_SAMPLE_FLOAT32; sink_input_ss.rate = ss.rate; u->sink_fs = pa_frame_size(&ss); u->fs = pa_frame_size(&sink_input_ss); /* Create sink */ pa_sink_new_data_init(&sink_data); sink_data.driver = __FILE__; sink_data.module = m; if (!(sink_data.name = pa_xstrdup(pa_modargs_get_value(ma, "sink_name", NULL)))) sink_data.name = pa_sprintf_malloc("%s.vsurroundsink", master->name); pa_sink_new_data_set_sample_spec(&sink_data, &ss); pa_sink_new_data_set_channel_map(&sink_data, &map); pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_MASTER_DEVICE, master->name); pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_CLASS, "filter"); pa_proplist_sets(sink_data.proplist, "device.vsurroundsink.name", sink_data.name); if (pa_modargs_get_proplist(ma, "sink_properties", sink_data.proplist, PA_UPDATE_REPLACE) < 0) { pa_log("Invalid properties"); pa_sink_new_data_done(&sink_data); goto fail; } if ((u->auto_desc = !pa_proplist_contains(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION))) { const char *z; z = pa_proplist_gets(master->proplist, PA_PROP_DEVICE_DESCRIPTION); pa_proplist_setf(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Virtual Surround Sink %s on %s", sink_data.name, z ? z : master->name); } u->sink = pa_sink_new(m->core, &sink_data, (master->flags & (PA_SINK_LATENCY|PA_SINK_DYNAMIC_LATENCY)) | (use_volume_sharing ? PA_SINK_SHARE_VOLUME_WITH_MASTER : 0)); pa_sink_new_data_done(&sink_data); if (!u->sink) { pa_log("Failed to create sink."); goto fail; } u->sink->parent.process_msg = sink_process_msg_cb; u->sink->set_state = sink_set_state_cb; u->sink->update_requested_latency = sink_update_requested_latency_cb; u->sink->request_rewind = sink_request_rewind_cb; pa_sink_set_set_mute_callback(u->sink, sink_set_mute_cb); if (!use_volume_sharing) { pa_sink_set_set_volume_callback(u->sink, sink_set_volume_cb); pa_sink_enable_decibel_volume(u->sink, true); } /* Normally this flag would be enabled automatically be we can force it. */ if (force_flat_volume) u->sink->flags |= PA_SINK_FLAT_VOLUME; u->sink->userdata = u; pa_sink_set_asyncmsgq(u->sink, master->asyncmsgq); /* Create sink input */ pa_sink_input_new_data_init(&sink_input_data); sink_input_data.driver = __FILE__; sink_input_data.module = m; pa_sink_input_new_data_set_sink(&sink_input_data, master, false); sink_input_data.origin_sink = u->sink; pa_proplist_setf(sink_input_data.proplist, PA_PROP_MEDIA_NAME, "Virtual Surround Sink Stream from %s", pa_proplist_gets(u->sink->proplist, PA_PROP_DEVICE_DESCRIPTION)); pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ROLE, "filter"); pa_sink_input_new_data_set_sample_spec(&sink_input_data, &sink_input_ss); pa_sink_input_new_data_set_channel_map(&sink_input_data, &sink_input_map); pa_sink_input_new(&u->sink_input, m->core, &sink_input_data); pa_sink_input_new_data_done(&sink_input_data); if (!u->sink_input) goto fail; u->sink_input->pop = sink_input_pop_cb; u->sink_input->process_rewind = sink_input_process_rewind_cb; u->sink_input->update_max_rewind = sink_input_update_max_rewind_cb; u->sink_input->update_max_request = sink_input_update_max_request_cb; u->sink_input->update_sink_latency_range = sink_input_update_sink_latency_range_cb; u->sink_input->update_sink_fixed_latency = sink_input_update_sink_fixed_latency_cb; u->sink_input->kill = sink_input_kill_cb; u->sink_input->attach = sink_input_attach_cb; u->sink_input->detach = sink_input_detach_cb; u->sink_input->state_change = sink_input_state_change_cb; u->sink_input->moving = sink_input_moving_cb; u->sink_input->volume_changed = use_volume_sharing ? NULL : sink_input_volume_changed_cb; u->sink_input->mute_changed = sink_input_mute_changed_cb; u->sink_input->userdata = u; u->sink->input_to_master = u->sink_input; pa_sink_input_get_silence(u->sink_input, &silence); u->memblockq = pa_memblockq_new("module-virtual-surround-sink memblockq", 0, MEMBLOCKQ_MAXLENGTH, 0, &sink_input_ss, 1, 1, 0, &silence); pa_memblock_unref(silence.memblock); /* resample hrir */ resampler = pa_resampler_new(u->sink->core->mempool, &hrir_temp_ss, &hrir_map, &hrir_ss, &hrir_map, PA_RESAMPLER_SRC_SINC_BEST_QUALITY, PA_RESAMPLER_NO_REMAP); u->hrir_samples = hrir_temp_chunk.length / pa_frame_size(&hrir_temp_ss) * hrir_ss.rate / hrir_temp_ss.rate; if (u->hrir_samples > 64) { u->hrir_samples = 64; pa_log("The (resampled) hrir contains more than 64 samples. Only the first 64 samples will be used to limit processor usage."); } hrir_total_length = u->hrir_samples * pa_frame_size(&hrir_ss); u->hrir_channels = hrir_ss.channels; u->hrir_data = (float *) pa_xmalloc(hrir_total_length); hrir_copied_length = 0; /* add silence to the hrir until we get enough samples out of the resampler */ while (hrir_copied_length < hrir_total_length) { pa_resampler_run(resampler, &hrir_temp_chunk, &hrir_temp_chunk_resampled); if (hrir_temp_chunk.memblock != hrir_temp_chunk_resampled.memblock) { /* Silence input block */ pa_silence_memblock(hrir_temp_chunk.memblock, &hrir_temp_ss); } if (hrir_temp_chunk_resampled.memblock) { /* Copy hrir data */ hrir_data = (float *) pa_memblock_acquire(hrir_temp_chunk_resampled.memblock); if (hrir_total_length - hrir_copied_length >= hrir_temp_chunk_resampled.length) { memcpy(u->hrir_data + hrir_copied_length, hrir_data, hrir_temp_chunk_resampled.length); hrir_copied_length += hrir_temp_chunk_resampled.length; } else { memcpy(u->hrir_data + hrir_copied_length, hrir_data, hrir_total_length - hrir_copied_length); hrir_copied_length = hrir_total_length; } pa_memblock_release(hrir_temp_chunk_resampled.memblock); pa_memblock_unref(hrir_temp_chunk_resampled.memblock); hrir_temp_chunk_resampled.memblock = NULL; } } pa_resampler_free(resampler); pa_memblock_unref(hrir_temp_chunk.memblock); hrir_temp_chunk.memblock = NULL; if (hrir_map.channels < map.channels) { pa_log("hrir file does not have enough channels!"); goto fail; } /* normalize hrir to avoid clipping */ hrir_max = 0; for (i = 0; i < u->hrir_samples; i++) { hrir_sum = 0; for (j = 0; j < u->hrir_channels; j++) hrir_sum += fabs(u->hrir_data[i * u->hrir_channels + j]); if (hrir_sum > hrir_max) hrir_max = hrir_sum; } if (hrir_max > 1) { for (i = 0; i < u->hrir_samples; i++) { for (j = 0; j < u->hrir_channels; j++) u->hrir_data[i * u->hrir_channels + j] /= hrir_max * 1.2; } } /* create mapping between hrir and input */ u->mapping_left = (unsigned *) pa_xnew0(unsigned, u->channels); u->mapping_right = (unsigned *) pa_xnew0(unsigned, u->channels); for (i = 0; i < map.channels; i++) { found_channel_left = 0; found_channel_right = 0; for (j = 0; j < hrir_map.channels; j++) { if (hrir_map.map[j] == map.map[i]) { u->mapping_left[i] = j; found_channel_left = 1; } if (hrir_map.map[j] == mirror_channel(map.map[i])) { u->mapping_right[i] = j; found_channel_right = 1; } } if (!found_channel_left) { pa_log("Cannot find mapping for channel %s", pa_channel_position_to_string(map.map[i])); goto fail; } if (!found_channel_right) { pa_log("Cannot find mapping for channel %s", pa_channel_position_to_string(mirror_channel(map.map[i]))); goto fail; } } u->input_buffer = pa_xmalloc0(u->hrir_samples * u->sink_fs); u->input_buffer_offset = 0; pa_sink_put(u->sink); pa_sink_input_put(u->sink_input); pa_modargs_free(ma); return 0; fail: if (hrir_temp_chunk.memblock) pa_memblock_unref(hrir_temp_chunk.memblock); if (hrir_temp_chunk_resampled.memblock) pa_memblock_unref(hrir_temp_chunk_resampled.memblock); if (ma) pa_modargs_free(ma); pa__done(m); return -1; }
int pa__init(pa_module*m) { struct userdata *u; pa_sample_spec ss; pa_channel_map map; pa_modargs *ma; pa_sink *master=NULL; pa_sink_input_new_data sink_input_data; pa_sink_new_data sink_data; pa_bool_t use_volume_sharing = TRUE; pa_bool_t force_flat_volume = FALSE; pa_memchunk silence; pa_assert(m); if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { pa_log("Failed to parse module arguments."); goto fail; } if (!(master = pa_namereg_get(m->core, pa_modargs_get_value(ma, "master", NULL), PA_NAMEREG_SINK))) { pa_log("Master sink not found"); goto fail; } pa_assert(master); ss = master->sample_spec; ss.format = PA_SAMPLE_FLOAT32; map = master->channel_map; if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) { pa_log("Invalid sample format specification or channel map"); goto fail; } if (pa_modargs_get_value_boolean(ma, "use_volume_sharing", &use_volume_sharing) < 0) { pa_log("use_volume_sharing= expects a boolean argument"); goto fail; } if (pa_modargs_get_value_boolean(ma, "force_flat_volume", &force_flat_volume) < 0) { pa_log("force_flat_volume= expects a boolean argument"); goto fail; } if (use_volume_sharing && force_flat_volume) { pa_log("Flat volume can't be forced when using volume sharing."); goto fail; } u = pa_xnew0(struct userdata, 1); u->module = m; m->userdata = u; u->channels = ss.channels; /* Create sink */ pa_sink_new_data_init(&sink_data); sink_data.driver = __FILE__; sink_data.module = m; if (!(sink_data.name = pa_xstrdup(pa_modargs_get_value(ma, "sink_name", NULL)))) sink_data.name = pa_sprintf_malloc("%s.vsink", master->name); pa_sink_new_data_set_sample_spec(&sink_data, &ss); pa_sink_new_data_set_channel_map(&sink_data, &map); pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_MASTER_DEVICE, master->name); pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_CLASS, "filter"); pa_proplist_sets(sink_data.proplist, "device.vsink.name", sink_data.name); if (pa_modargs_get_proplist(ma, "sink_properties", sink_data.proplist, PA_UPDATE_REPLACE) < 0) { pa_log("Invalid properties"); pa_sink_new_data_done(&sink_data); goto fail; } if ((u->auto_desc = !pa_proplist_contains(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION))) { const char *z; z = pa_proplist_gets(master->proplist, PA_PROP_DEVICE_DESCRIPTION); pa_proplist_setf(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Virtual Sink %s on %s", sink_data.name, z ? z : master->name); } u->sink = pa_sink_new(m->core, &sink_data, (master->flags & (PA_SINK_LATENCY|PA_SINK_DYNAMIC_LATENCY)) | (use_volume_sharing ? PA_SINK_SHARE_VOLUME_WITH_MASTER : 0)); pa_sink_new_data_done(&sink_data); if (!u->sink) { pa_log("Failed to create sink."); goto fail; } u->sink->parent.process_msg = sink_process_msg_cb; u->sink->set_state = sink_set_state_cb; u->sink->update_requested_latency = sink_update_requested_latency_cb; u->sink->request_rewind = sink_request_rewind_cb; pa_sink_set_set_mute_callback(u->sink, sink_set_mute_cb); if (!use_volume_sharing) { pa_sink_set_set_volume_callback(u->sink, sink_set_volume_cb); pa_sink_enable_decibel_volume(u->sink, TRUE); } /* Normally this flag would be enabled automatically be we can force it. */ if (force_flat_volume) u->sink->flags |= PA_SINK_FLAT_VOLUME; u->sink->userdata = u; pa_sink_set_asyncmsgq(u->sink, master->asyncmsgq); /* Create sink input */ pa_sink_input_new_data_init(&sink_input_data); sink_input_data.driver = __FILE__; sink_input_data.module = m; pa_sink_input_new_data_set_sink(&sink_input_data, master, FALSE); sink_input_data.origin_sink = u->sink; pa_proplist_setf(sink_input_data.proplist, PA_PROP_MEDIA_NAME, "Virtual Sink Stream from %s", pa_proplist_gets(u->sink->proplist, PA_PROP_DEVICE_DESCRIPTION)); pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ROLE, "filter"); pa_sink_input_new_data_set_sample_spec(&sink_input_data, &ss); pa_sink_input_new_data_set_channel_map(&sink_input_data, &map); pa_sink_input_new(&u->sink_input, m->core, &sink_input_data); pa_sink_input_new_data_done(&sink_input_data); if (!u->sink_input) goto fail; u->sink_input->pop = sink_input_pop_cb; u->sink_input->process_rewind = sink_input_process_rewind_cb; u->sink_input->update_max_rewind = sink_input_update_max_rewind_cb; u->sink_input->update_max_request = sink_input_update_max_request_cb; u->sink_input->update_sink_latency_range = sink_input_update_sink_latency_range_cb; u->sink_input->update_sink_fixed_latency = sink_input_update_sink_fixed_latency_cb; u->sink_input->kill = sink_input_kill_cb; u->sink_input->attach = sink_input_attach_cb; u->sink_input->detach = sink_input_detach_cb; u->sink_input->state_change = sink_input_state_change_cb; u->sink_input->may_move_to = sink_input_may_move_to_cb; u->sink_input->moving = sink_input_moving_cb; u->sink_input->volume_changed = use_volume_sharing ? NULL : sink_input_volume_changed_cb; u->sink_input->mute_changed = sink_input_mute_changed_cb; u->sink_input->userdata = u; u->sink->input_to_master = u->sink_input; pa_sink_input_get_silence(u->sink_input, &silence); u->memblockq = pa_memblockq_new("module-virtual-sink memblockq", 0, MEMBLOCKQ_MAXLENGTH, 0, &ss, 1, 1, 0, &silence); pa_memblock_unref(silence.memblock); /* (9) INITIALIZE ANYTHING ELSE YOU NEED HERE */ pa_sink_put(u->sink); pa_sink_input_put(u->sink_input); pa_modargs_free(ma); return 0; fail: if (ma) pa_modargs_free(ma); pa__done(m); return -1; }