src/modules/dbus/iface-stream.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2009 Tanu Kaskinen
   5   Copyright 2009 Vincent Filali-Ansary <filali.v@azurdigitalnetworks.net>
   6
   7   PulseAudio is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU Lesser General Public License as published
   9   by the Free Software Foundation; either version 2.1 of the License,
  10   or (at your option) any later version.
  11
  12   PulseAudio is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with PulseAudio; if not, write to the Free Software
  19   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  20   USA.
  21 ***/
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <pulsecore/core-util.h>
  28 #include <pulsecore/dbus-util.h>
  29 #include <pulsecore/protocol-dbus.h>
  30
  31 #include "iface-stream.h"
  32
  33 #define PLAYBACK_OBJECT_NAME "playback_stream"
  34 #define RECORD_OBJECT_NAME "record_stream"
  35
  36 enum stream_type {
  37     STREAM_TYPE_PLAYBACK,
  38     STREAM_TYPE_RECORD
  39 };
  40
  41 struct pa_dbusiface_stream {
  42     pa_dbusiface_core *core;
  43
  44     union {
  45         pa_sink_input *sink_input;
  46         pa_source_output *source_output;
  47     };
  48     enum stream_type type;
  49     char *path;
  50     union {
  51         pa_sink *sink;
  52         pa_source *source;
  53     };
  54     uint32_t sample_rate;
  55     pa_cvolume volume;
  56     dbus_bool_t mute;
  57     pa_proplist *proplist;
  58
  59     pa_dbus_protocol *dbus_protocol;
  60     pa_subscription *subscription;
  61     pa_hook_slot *send_event_slot;
  62 };
  63
  64 static void handle_get_index(DBusConnection *conn, DBusMessage *msg, void *userdata);
  65 static void handle_get_driver(DBusConnection *conn, DBusMessage *msg, void *userdata);
  66 static void handle_get_owner_module(DBusConnection *conn, DBusMessage *msg, void *userdata);
  67 static void handle_get_client(DBusConnection *conn, DBusMessage *msg, void *userdata);
  68 static void handle_get_device(DBusConnection *conn, DBusMessage *msg, void *userdata);
  69 static void handle_get_sample_format(DBusConnection *conn, DBusMessage *msg, void *userdata);
  70 static void handle_get_sample_rate(DBusConnection *conn, DBusMessage *msg, void *userdata);
  71 static void handle_get_channels(DBusConnection *conn, DBusMessage *msg, void *userdata);
  72 static void handle_get_volume(DBusConnection *conn, DBusMessage *msg, void *userdata);
  73 static void handle_set_volume(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata);
  74 static void handle_get_mute(DBusConnection *conn, DBusMessage *msg, void *userdata);
  75 static void handle_set_mute(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata);
  76 static void handle_get_buffer_latency(DBusConnection *conn, DBusMessage *msg, void *userdata);
  77 static void handle_get_device_latency(DBusConnection *conn, DBusMessage *msg, void *userdata);
  78 static void handle_get_resample_method(DBusConnection *conn, DBusMessage *msg, void *userdata);
  79 static void handle_get_property_list(DBusConnection *conn, DBusMessage *msg, void *userdata);
  80
  81 static void handle_get_all(DBusConnection *conn, DBusMessage *msg, void *userdata);
  82
  83 static void handle_move(DBusConnection *conn, DBusMessage *msg, void *userdata);
  84 static void handle_kill(DBusConnection *conn, DBusMessage *msg, void *userdata);
  85
  86 enum property_handler_index {
  87     PROPERTY_HANDLER_INDEX,
  88     PROPERTY_HANDLER_DRIVER,
  89     PROPERTY_HANDLER_OWNER_MODULE,
  90     PROPERTY_HANDLER_CLIENT,
  91     PROPERTY_HANDLER_DEVICE,
  92     PROPERTY_HANDLER_SAMPLE_FORMAT,
  93     PROPERTY_HANDLER_SAMPLE_RATE,
  94     PROPERTY_HANDLER_CHANNELS,
  95     PROPERTY_HANDLER_VOLUME,
  96     PROPERTY_HANDLER_MUTE,
  97     PROPERTY_HANDLER_BUFFER_LATENCY,
  98     PROPERTY_HANDLER_DEVICE_LATENCY,
  99     PROPERTY_HANDLER_RESAMPLE_METHOD,
 100     PROPERTY_HANDLER_PROPERTY_LIST,
 101     PROPERTY_HANDLER_MAX
 102 };
 103
 104 static pa_dbus_property_handler property_handlers[PROPERTY_HANDLER_MAX] = {
 105     [PROPERTY_HANDLER_INDEX]           = { .property_name = "Index",          .type = "u",      .get_cb = handle_get_index,           .set_cb = NULL },
 106     [PROPERTY_HANDLER_DRIVER]          = { .property_name = "Driver",         .type = "s",      .get_cb = handle_get_driver,          .set_cb = NULL },
 107     [PROPERTY_HANDLER_OWNER_MODULE]    = { .property_name = "OwnerModule",    .type = "o",      .get_cb = handle_get_owner_module,    .set_cb = NULL },
 108     [PROPERTY_HANDLER_CLIENT]          = { .property_name = "Client",         .type = "o",      .get_cb = handle_get_client,          .set_cb = NULL },
 109     [PROPERTY_HANDLER_DEVICE]          = { .property_name = "Device",         .type = "o",      .get_cb = handle_get_device,          .set_cb = NULL },
 110     [PROPERTY_HANDLER_SAMPLE_FORMAT]   = { .property_name = "SampleFormat",   .type = "u",      .get_cb = handle_get_sample_format,   .set_cb = NULL },
 111     [PROPERTY_HANDLER_SAMPLE_RATE]     = { .property_name = "SampleRate",     .type = "u",      .get_cb = handle_get_sample_rate,     .set_cb = NULL },
 112     [PROPERTY_HANDLER_CHANNELS]        = { .property_name = "Channels",       .type = "au",     .get_cb = handle_get_channels,        .set_cb = NULL },
 113     [PROPERTY_HANDLER_VOLUME]          = { .property_name = "Volume",         .type = "au",     .get_cb = handle_get_volume,          .set_cb = handle_set_volume },
 114     [PROPERTY_HANDLER_MUTE]            = { .property_name = "Mute",           .type = "b",      .get_cb = handle_get_mute,            .set_cb = handle_set_mute },
 115     [PROPERTY_HANDLER_BUFFER_LATENCY]  = { .property_name = "BufferLatency",  .type = "t",      .get_cb = handle_get_buffer_latency,  .set_cb = NULL },
 116     [PROPERTY_HANDLER_DEVICE_LATENCY]  = { .property_name = "DeviceLatency",  .type = "t",      .get_cb = handle_get_device_latency,  .set_cb = NULL },
 117     [PROPERTY_HANDLER_RESAMPLE_METHOD] = { .property_name = "ResampleMethod", .type = "s",      .get_cb = handle_get_resample_method, .set_cb = NULL },
 118     [PROPERTY_HANDLER_PROPERTY_LIST]   = { .property_name = "PropertyList",   .type = "a{say}", .get_cb = handle_get_property_list,   .set_cb = NULL }
 119 };
 120
 121 enum method_handler_index {
 122     METHOD_HANDLER_MOVE,
 123     METHOD_HANDLER_KILL,
 124     METHOD_HANDLER_MAX
 125 };
 126
 127 static pa_dbus_arg_info move_args[] = { { "device", "o", "in" } };
 128
 129 static pa_dbus_method_handler method_handlers[METHOD_HANDLER_MAX] = {
 130     [METHOD_HANDLER_MOVE] = {
 131         .method_name = "Move",
 132         .arguments = move_args,
 133         .n_arguments = sizeof(move_args) / sizeof(pa_dbus_arg_info),
 134         .receive_cb = handle_move },
 135     [METHOD_HANDLER_KILL] = {
 136         .method_name = "Kill",
 137         .arguments = NULL,
 138         .n_arguments = 0,
 139         .receive_cb = handle_kill }
 140 };
 141
 142 enum signal_index {
 143     SIGNAL_DEVICE_UPDATED,
 144     SIGNAL_SAMPLE_RATE_UPDATED,
 145     SIGNAL_VOLUME_UPDATED,
 146     SIGNAL_MUTE_UPDATED,
 147     SIGNAL_PROPERTY_LIST_UPDATED,
 148     SIGNAL_STREAM_EVENT,
 149     SIGNAL_MAX
 150 };
 151
 152 static pa_dbus_arg_info device_updated_args[]        = { { "device",        "o",      NULL } };
 153 static pa_dbus_arg_info sample_rate_updated_args[]   = { { "sample_rate",   "u",      NULL } };
 154 static pa_dbus_arg_info volume_updated_args[]        = { { "volume",        "au",     NULL } };
 155 static pa_dbus_arg_info mute_updated_args[]          = { { "muted",         "b",      NULL } };
 156 static pa_dbus_arg_info property_list_updated_args[] = { { "property_list", "a{say}", NULL } };
 157 static pa_dbus_arg_info stream_event_args[]          = { { "name",          "s",      NULL }, { "property_list", "a{say}", NULL } };
 158
 159 static pa_dbus_signal_info signals[SIGNAL_MAX] = {
 160     [SIGNAL_DEVICE_UPDATED]        = { .name = "DeviceUpdated",       .arguments = device_updated_args,        .n_arguments = 1 },
 161     [SIGNAL_SAMPLE_RATE_UPDATED]   = { .name = "SampleRateUpdated",   .arguments = sample_rate_updated_args,   .n_arguments = 1 },
 162     [SIGNAL_VOLUME_UPDATED]        = { .name = "VolumeUpdated",       .arguments = volume_updated_args,        .n_arguments = 1 },
 163     [SIGNAL_MUTE_UPDATED]          = { .name = "MuteUpdated",         .arguments = mute_updated_args,          .n_arguments = 1 },
 164     [SIGNAL_PROPERTY_LIST_UPDATED] = { .name = "PropertyListUpdated", .arguments = property_list_updated_args, .n_arguments = 1 },
 165     [SIGNAL_STREAM_EVENT]          = { .name = "StreamEvent",         .arguments = stream_event_args,          .n_arguments = sizeof(stream_event_args) / sizeof(pa_dbus_arg_info) }
 166 };
 167
 168 static pa_dbus_interface_info stream_interface_info = {
 169     .name = PA_DBUSIFACE_STREAM_INTERFACE,
 170     .method_handlers = method_handlers,
 171     .n_method_handlers = METHOD_HANDLER_MAX,
 172     .property_handlers = property_handlers,
 173     .n_property_handlers = PROPERTY_HANDLER_MAX,
 174     .get_all_properties_cb = handle_get_all,
 175     .signals = signals,
 176     .n_signals = SIGNAL_MAX
 177 };
 178
 179 static void handle_get_index(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 180     pa_dbusiface_stream *s = userdata;
 181     dbus_uint32_t idx;
 182
 183     pa_assert(conn);
 184     pa_assert(msg);
 185     pa_assert(s);
 186
 187     idx = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->index : s->source_output->index;
 188
 189     pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT32, &idx);
 190 }
 191
 192 static void handle_get_driver(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 193     pa_dbusiface_stream *s = userdata;
 194     const char *driver = NULL;
 195
 196     pa_assert(conn);
 197     pa_assert(msg);
 198     pa_assert(s);
 199
 200     driver = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->driver : s->source_output->driver;
 201
 202     if (!driver) {
 203         if (s->type == STREAM_TYPE_PLAYBACK)
 204             pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY,
 205                                "Playback stream %u doesn't have a driver.", s->sink_input->index);
 206         else
 207             pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY,
 208                                "Record stream %u doesn't have a driver.", s->source_output->index);
 209         return;
 210     }
 211
 212     pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_STRING, &driver);
 213 }
 214
 215 static void handle_get_owner_module(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 216     pa_dbusiface_stream *s = userdata;
 217     pa_module *owner_module = NULL;
 218     const char *object_path = NULL;
 219
 220     pa_assert(conn);
 221     pa_assert(msg);
 222     pa_assert(s);
 223
 224     owner_module = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->module : s->source_output->module;
 225
 226     if (!owner_module) {
 227         if (s->type == STREAM_TYPE_PLAYBACK)
 228             pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY,
 229                                "Playback stream %u doesn't have an owner module.", s->sink_input->index);
 230         else
 231             pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY,
 232                                "Record stream %u doesn't have an owner module.", s->source_output->index);
 233         return;
 234     }
 235
 236     object_path = pa_dbusiface_core_get_module_path(s->core, owner_module);
 237
 238     pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &object_path);
 239 }
 240
 241 static void handle_get_client(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 242     pa_dbusiface_stream *s = userdata;
 243     pa_client *client = NULL;
 244     const char *object_path = NULL;
 245
 246     pa_assert(conn);
 247     pa_assert(msg);
 248     pa_assert(s);
 249
 250     client = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->client : s->source_output->client;
 251
 252     if (!client) {
 253         if (s->type == STREAM_TYPE_PLAYBACK)
 254             pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY,
 255                                "Playback stream %u isn't associated to any client.", s->sink_input->index);
 256         else
 257             pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY,
 258                                "Record stream %u isn't associated to any client.", s->source_output->index);
 259         return;
 260     }
 261
 262     object_path = pa_dbusiface_core_get_client_path(s->core, client);
 263
 264     pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &object_path);
 265 }
 266
 267 static void handle_get_device(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 268     pa_dbusiface_stream *s = userdata;
 269     const char *device = NULL;
 270
 271     pa_assert(conn);
 272     pa_assert(msg);
 273     pa_assert(s);
 274
 275     if (s->type == STREAM_TYPE_PLAYBACK)
 276         device = pa_dbusiface_core_get_sink_path(s->core, s->sink);
 277     else
 278         device = pa_dbusiface_core_get_source_path(s->core, s->source);
 279
 280     pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &device);
 281 }
 282
 283 static void handle_get_sample_format(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 284     pa_dbusiface_stream *s = userdata;
 285     dbus_uint32_t sample_format = 0;
 286
 287     pa_assert(conn);
 288     pa_assert(msg);
 289     pa_assert(s);
 290
 291     sample_format = (s->type == STREAM_TYPE_PLAYBACK)
 292                     ? s->sink_input->sample_spec.format
 293                     : s->source_output->sample_spec.format;
 294
 295     pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT32, &sample_format);
 296 }
 297
 298 static void handle_get_sample_rate(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 299     pa_dbusiface_stream *s = userdata;
 300
 301     pa_assert(conn);
 302     pa_assert(msg);
 303     pa_assert(s);
 304
 305     pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT32, &s->sample_rate);
 306 }
 307
 308 static void handle_get_channels(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 309     pa_dbusiface_stream *s = userdata;
 310     pa_channel_map *channel_map = NULL;
 311     dbus_uint32_t channels[PA_CHANNELS_MAX];
 312     unsigned i = 0;
 313
 314     pa_assert(conn);
 315     pa_assert(msg);
 316     pa_assert(s);
 317
 318     channel_map = (s->type == STREAM_TYPE_PLAYBACK) ? &s->sink_input->channel_map : &s->source_output->channel_map;
 319
 320     for (i = 0; i < channel_map->channels; ++i)
 321         channels[i] = channel_map->map[i];
 322
 323     pa_dbus_send_basic_array_variant_reply(conn, msg, DBUS_TYPE_UINT32, channels, channel_map->channels);
 324 }
 325
 326 static void handle_get_volume(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 327     pa_dbusiface_stream *s = userdata;
 328     dbus_uint32_t volume[PA_CHANNELS_MAX];
 329     unsigned i = 0;
 330
 331     pa_assert(conn);
 332     pa_assert(msg);
 333     pa_assert(s);
 334
 335     if (s->type == STREAM_TYPE_RECORD) {
 336         pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "Record streams don't have volume.");
 337         return;
 338     }
 339
 340     for (i = 0; i < s->volume.channels; ++i)
 341         volume[i] = s->volume.values[i];
 342
 343     pa_dbus_send_basic_array_variant_reply(conn, msg, DBUS_TYPE_UINT32, volume, s->volume.channels);
 344 }
 345
 346 static void handle_set_volume(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata) {
 347     pa_dbusiface_stream *s = userdata;
 348     DBusMessageIter array_iter;
 349     int stream_channels = 0;
 350     dbus_uint32_t *volume = NULL;
 351     int n_volume_entries = 0;
 352     pa_cvolume new_vol;
 353     int i = 0;
 354
 355     pa_assert(conn);
 356     pa_assert(msg);
 357     pa_assert(iter);
 358     pa_assert(s);
 359
 360     if (s->type == STREAM_TYPE_RECORD) {
 361         pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "Record streams don't have volume.");
 362         return;
 363     }
 364
 365     pa_cvolume_init(&new_vol);
 366
 367     stream_channels = s->sink_input->channel_map.channels;
 368
 369     new_vol.channels = stream_channels;
 370
 371     dbus_message_iter_recurse(iter, &array_iter);
 372     dbus_message_iter_get_fixed_array(&array_iter, &volume, &n_volume_entries);
 373
 374     if (n_volume_entries != stream_channels) {
 375         pa_dbus_send_error(conn, msg, DBUS_ERROR_INVALID_ARGS,
 376                            "Expected %u volume entries, got %u.", stream_channels, n_volume_entries);
 377         return;
 378     }
 379
 380     for (i = 0; i < n_volume_entries; ++i) {
 381         if (volume[i] > PA_VOLUME_MAX) {
 382             pa_dbus_send_error(conn, msg, DBUS_ERROR_INVALID_ARGS, "Too large volume value: %u", volume[i]);
 383             return;
 384         }
 385         new_vol.values[i] = volume[i];
 386     }
 387
 388     pa_sink_input_set_volume(s->sink_input, &new_vol, TRUE, TRUE);
 389
 390     pa_dbus_send_empty_reply(conn, msg);
 391 }
 392
 393 static void handle_get_mute(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 394     pa_dbusiface_stream *s = userdata;
 395
 396     pa_assert(conn);
 397     pa_assert(msg);
 398     pa_assert(s);
 399
 400     if (s->type == STREAM_TYPE_RECORD) {
 401         pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "Record streams don't have mute.");
 402         return;
 403     }
 404
 405     pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_BOOLEAN, &s->mute);
 406 }
 407
 408 static void handle_set_mute(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata) {
 409     pa_dbusiface_stream *s = userdata;
 410     dbus_bool_t mute = FALSE;
 411
 412     pa_assert(conn);
 413     pa_assert(msg);
 414     pa_assert(iter);
 415     pa_assert(s);
 416
 417     dbus_message_iter_get_basic(iter, &mute);
 418
 419     if (s->type == STREAM_TYPE_RECORD) {
 420         pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "Record streams don't have mute.");
 421         return;
 422     }
 423
 424     pa_sink_input_set_mute(s->sink_input, mute, TRUE);
 425
 426     pa_dbus_send_empty_reply(conn, msg);
 427 };
 428
 429 static void handle_get_buffer_latency(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 430     pa_dbusiface_stream *s = userdata;
 431     dbus_uint64_t buffer_latency = 0;
 432
 433     pa_assert(conn);
 434     pa_assert(msg);
 435     pa_assert(s);
 436
 437     if (s->type == STREAM_TYPE_PLAYBACK)
 438         buffer_latency = pa_sink_input_get_latency(s->sink_input, NULL);
 439     else
 440         buffer_latency = pa_source_output_get_latency(s->source_output, NULL);
 441
 442     pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT64, &buffer_latency);
 443 }
 444
 445 static void handle_get_device_latency(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 446     pa_dbusiface_stream *s = userdata;
 447     dbus_uint64_t device_latency = 0;
 448
 449     pa_assert(conn);
 450     pa_assert(msg);
 451     pa_assert(s);
 452
 453     if (s->type == STREAM_TYPE_PLAYBACK)
 454         pa_sink_input_get_latency(s->sink_input, &device_latency);
 455     else
 456         pa_source_output_get_latency(s->source_output, &device_latency);
 457
 458     pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT64, &device_latency);
 459 }
 460
 461 static void handle_get_resample_method(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 462     pa_dbusiface_stream *s = userdata;
 463     const char *resample_method = NULL;
 464
 465     pa_assert(conn);
 466     pa_assert(msg);
 467     pa_assert(s);
 468
 469     if (s->type == STREAM_TYPE_PLAYBACK)
 470         resample_method = pa_resample_method_to_string(s->sink_input->actual_resample_method);
 471     else
 472         resample_method = pa_resample_method_to_string(s->source_output->actual_resample_method);
 473
 474     pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_STRING, &resample_method);
 475 }
 476
 477 static void handle_get_property_list(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 478     pa_dbusiface_stream *s = userdata;
 479
 480     pa_assert(conn);
 481     pa_assert(msg);
 482     pa_assert(s);
 483
 484     pa_dbus_send_proplist_variant_reply(conn, msg, s->proplist);
 485 }
 486
 487 static void handle_get_all(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 488     pa_dbusiface_stream *s = userdata;
 489     DBusMessage *reply = NULL;
 490     DBusMessageIter msg_iter;
 491     DBusMessageIter dict_iter;
 492     dbus_uint32_t idx = 0;
 493     const char *driver = NULL;
 494     pa_module *owner_module = NULL;
 495     const char *owner_module_path = NULL;
 496     pa_client *client = NULL;
 497     const char *client_path = NULL;
 498     const char *device = NULL;
 499     dbus_uint32_t sample_format = 0;
 500     pa_channel_map *channel_map = NULL;
 501     dbus_uint32_t channels[PA_CHANNELS_MAX];
 502     dbus_uint32_t volume[PA_CHANNELS_MAX];
 503     dbus_uint64_t buffer_latency = 0;
 504     dbus_uint64_t device_latency = 0;
 505     const char *resample_method = NULL;
 506     unsigned i = 0;
 507
 508     pa_assert(conn);
 509     pa_assert(msg);
 510     pa_assert(s);
 511
 512     if (s->type == STREAM_TYPE_PLAYBACK) {
 513         idx = s->sink_input->index;
 514         driver = s->sink_input->driver;
 515         owner_module = s->sink_input->module;
 516         client = s->sink_input->client;
 517         device = pa_dbusiface_core_get_sink_path(s->core, s->sink);
 518         sample_format = s->sink_input->sample_spec.format;
 519         channel_map = &s->sink_input->channel_map;
 520         for (i = 0; i < s->volume.channels; ++i)
 521             volume[i] = s->volume.values[i];
 522         buffer_latency = pa_sink_input_get_latency(s->sink_input, &device_latency);
 523         resample_method = pa_resample_method_to_string(s->sink_input->actual_resample_method);
 524     } else {
 525         idx = s->source_output->index;
 526         driver = s->source_output->driver;
 527         owner_module = s->source_output->module;
 528         client = s->source_output->client;
 529         device = pa_dbusiface_core_get_source_path(s->core, s->source);
 530         sample_format = s->source_output->sample_spec.format;
 531         channel_map = &s->source_output->channel_map;
 532         buffer_latency = pa_source_output_get_latency(s->source_output, &device_latency);
 533         resample_method = pa_resample_method_to_string(s->source_output->actual_resample_method);
 534     }
 535     if (owner_module)
 536         owner_module_path = pa_dbusiface_core_get_module_path(s->core, owner_module);
 537     if (client)
 538         client_path = pa_dbusiface_core_get_client_path(s->core, client);
 539     for (i = 0; i < channel_map->channels; ++i)
 540         channels[i] = channel_map->map[i];
 541
 542     pa_assert_se((reply = dbus_message_new_method_return(msg)));
 543
 544     dbus_message_iter_init_append(reply, &msg_iter);
 545     pa_assert_se(dbus_message_iter_open_container(&msg_iter, DBUS_TYPE_ARRAY, "{sv}", &dict_iter));
 546
 547     pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_INDEX].property_name, DBUS_TYPE_UINT32, &idx);
 548
 549     if (driver)
 550         pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_DRIVER].property_name, DBUS_TYPE_STRING, &driver);
 551
 552     if (owner_module)
 553         pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_OWNER_MODULE].property_name, DBUS_TYPE_OBJECT_PATH, &owner_module_path);
 554
 555     if (client)
 556         pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_CLIENT].property_name, DBUS_TYPE_OBJECT_PATH, &client_path);
 557
 558     pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_SAMPLE_FORMAT].property_name, DBUS_TYPE_UINT32, &sample_format);
 559     pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_SAMPLE_RATE].property_name, DBUS_TYPE_UINT32, &s->sample_rate);
 560     pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_CHANNELS].property_name, DBUS_TYPE_UINT32, channels, channel_map->channels);
 561
 562     if (s->type == STREAM_TYPE_PLAYBACK) {
 563         pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_VOLUME].property_name, DBUS_TYPE_UINT32, volume, s->volume.channels);
 564         pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_MUTE].property_name, DBUS_TYPE_BOOLEAN, &s->mute);
 565     }
 566
 567     pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_BUFFER_LATENCY].property_name, DBUS_TYPE_UINT64, &buffer_latency);
 568     pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_DEVICE_LATENCY].property_name, DBUS_TYPE_UINT64, &device_latency);
 569     pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_RESAMPLE_METHOD].property_name, DBUS_TYPE_STRING, &resample_method);
 570     pa_dbus_append_proplist_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_PROPERTY_LIST].property_name, s->proplist);
 571
 572     pa_assert_se(dbus_message_iter_close_container(&msg_iter, &dict_iter));
 573     pa_assert_se(dbus_connection_send(conn, reply, NULL));
 574     dbus_message_unref(reply);
 575 }
 576
 577 static void handle_move(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 578     pa_dbusiface_stream *s = userdata;
 579     const char *device = NULL;
 580
 581     pa_assert(conn);
 582     pa_assert(msg);
 583     pa_assert(s);
 584
 585     pa_assert_se(dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &device, DBUS_TYPE_INVALID));
 586
 587     if (s->type == STREAM_TYPE_PLAYBACK) {
 588         pa_sink *sink = pa_dbusiface_core_get_sink(s->core, device);
 589
 590         if (!sink) {
 591             pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NOT_FOUND, "%s: No such sink.", device);
 592             return;
 593         }
 594
 595         if (pa_sink_input_move_to(s->sink_input, sink, TRUE) < 0) {
 596             pa_dbus_send_error(conn, msg, DBUS_ERROR_FAILED,
 597                                "Moving playback stream %u to sink %s failed.", s->sink_input->index, sink->name);
 598             return;
 599         }
 600     } else {
 601         pa_source *source = pa_dbusiface_core_get_source(s->core, device);
 602
 603         if (!source) {
 604             pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NOT_FOUND, "%s: No such source.", device);
 605             return;
 606         }
 607
 608         if (pa_source_output_move_to(s->source_output, source, TRUE) < 0) {
 609             pa_dbus_send_error(conn, msg, DBUS_ERROR_FAILED,
 610                                "Moving record stream %u to source %s failed.", s->source_output->index, source->name);
 611             return;
 612         }
 613     }
 614
 615     pa_dbus_send_empty_reply(conn, msg);
 616 }
 617
 618 static void handle_kill(DBusConnection *conn, DBusMessage *msg, void *userdata) {
 619     pa_dbusiface_stream *s = userdata;
 620
 621     pa_assert(conn);
 622     pa_assert(msg);
 623     pa_assert(s);
 624
 625     if (s->type == STREAM_TYPE_PLAYBACK)
 626         pa_sink_input_kill(s->sink_input);
 627     else
 628         pa_source_output_kill(s->source_output);
 629
 630     pa_dbus_send_empty_reply(conn, msg);
 631 }
 632
 633 static void subscription_cb(pa_core *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
 634     pa_dbusiface_stream *s = userdata;
 635     DBusMessage *signal = NULL;
 636     const char *new_device_path = NULL;
 637     uint32_t new_sample_rate = 0;
 638     pa_proplist *new_proplist = NULL;
 639     unsigned i = 0;
 640
 641     pa_assert(c);
 642     pa_assert(s);
 643
 644     if ((s->type == STREAM_TYPE_PLAYBACK && idx != s->sink_input->index)
 645         || (s->type == STREAM_TYPE_RECORD && idx != s->source_output->index))
 646         return;
 647
 648     if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) != PA_SUBSCRIPTION_EVENT_CHANGE)
 649         return;
 650
 651     pa_assert(((s->type == STREAM_TYPE_PLAYBACK)
 652                 && ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SINK_INPUT))
 653               || ((s->type == STREAM_TYPE_RECORD)
 654                    && ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT)));
 655
 656     if (s->type == STREAM_TYPE_PLAYBACK) {
 657         pa_sink *new_sink = s->sink_input->sink;
 658
 659         if (s->sink != new_sink) {
 660             pa_sink_unref(s->sink);
 661             s->sink = pa_sink_ref(new_sink);
 662
 663             new_device_path = pa_dbusiface_core_get_sink_path(s->core, new_sink);
 664
 665             pa_assert_se(signal = dbus_message_new_signal(s->path,
 666                                                           PA_DBUSIFACE_STREAM_INTERFACE,
 667                                                           signals[SIGNAL_DEVICE_UPDATED].name));
 668             pa_assert_se(dbus_message_append_args(signal, DBUS_TYPE_OBJECT_PATH, &new_device_path, DBUS_TYPE_INVALID));
 669
 670             pa_dbus_protocol_send_signal(s->dbus_protocol, signal);
 671             dbus_message_unref(signal);
 672             signal = NULL;
 673         }
 674     } else {
 675         pa_source *new_source = s->source_output->source;
 676
 677         if (s->source != new_source) {
 678             pa_source_unref(s->source);
 679             s->source = pa_source_ref(new_source);
 680
 681             new_device_path = pa_dbusiface_core_get_source_path(s->core, new_source);
 682
 683             pa_assert_se(signal = dbus_message_new_signal(s->path,
 684                                                           PA_DBUSIFACE_STREAM_INTERFACE,
 685                                                           signals[SIGNAL_DEVICE_UPDATED].name));
 686             pa_assert_se(dbus_message_append_args(signal, DBUS_TYPE_OBJECT_PATH, &new_device_path, DBUS_TYPE_INVALID));
 687
 688             pa_dbus_protocol_send_signal(s->dbus_protocol, signal);
 689             dbus_message_unref(signal);
 690             signal = NULL;
 691         }
 692     }
 693
 694     new_sample_rate = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->sample_spec.rate : s->source_output->sample_spec.rate;
 695
 696     if (s->sample_rate != new_sample_rate) {
 697         s->sample_rate = new_sample_rate;
 698
 699         pa_assert_se(signal = dbus_message_new_signal(s->path,
 700                                                       PA_DBUSIFACE_STREAM_INTERFACE,
 701                                                       signals[SIGNAL_SAMPLE_RATE_UPDATED].name));
 702         pa_assert_se(dbus_message_append_args(signal, DBUS_TYPE_UINT32, &s->sample_rate, DBUS_TYPE_INVALID));
 703
 704         pa_dbus_protocol_send_signal(s->dbus_protocol, signal);
 705         dbus_message_unref(signal);
 706         signal = NULL;
 707     }
 708
 709     if (s->type == STREAM_TYPE_PLAYBACK) {
 710         pa_cvolume new_volume;
 711         pa_bool_t new_mute = FALSE;
 712
 713         pa_sink_input_get_volume(s->sink_input, &new_volume, TRUE);
 714
 715         if (!pa_cvolume_equal(&s->volume, &new_volume)) {
 716             dbus_uint32_t volume[PA_CHANNELS_MAX];
 717             dbus_uint32_t *volume_ptr = volume;
 718
 719             s->volume = new_volume;
 720
 721             for (i = 0; i < s->volume.channels; ++i)
 722                 volume[i] = s->volume.values[i];
 723
 724             pa_assert_se(signal = dbus_message_new_signal(s->path,
 725                                                           PA_DBUSIFACE_STREAM_INTERFACE,
 726                                                           signals[SIGNAL_VOLUME_UPDATED].name));
 727             pa_assert_se(dbus_message_append_args(signal,
 728                                                   DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32, &volume_ptr, s->volume.channels,
 729                                                   DBUS_TYPE_INVALID));
 730
 731             pa_dbus_protocol_send_signal(s->dbus_protocol, signal);
 732             dbus_message_unref(signal);
 733             signal = NULL;
 734         }
 735
 736         new_mute = pa_sink_input_get_mute(s->sink_input);
 737
 738         if (s->mute != new_mute) {
 739             s->mute = new_mute;
 740
 741             pa_assert_se(signal = dbus_message_new_signal(s->path,
 742                                                           PA_DBUSIFACE_STREAM_INTERFACE,
 743                                                           signals[SIGNAL_MUTE_UPDATED].name));
 744             pa_assert_se(dbus_message_append_args(signal, DBUS_TYPE_BOOLEAN, &s->mute, DBUS_TYPE_INVALID));
 745
 746             pa_dbus_protocol_send_signal(s->dbus_protocol, signal);
 747             dbus_message_unref(signal);
 748             signal = NULL;
 749         }
 750     }
 751
 752     new_proplist = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->proplist : s->source_output->proplist;
 753
 754     if (!pa_proplist_equal(s->proplist, new_proplist)) {
 755         DBusMessageIter msg_iter;
 756
 757         pa_proplist_update(s->proplist, PA_UPDATE_SET, new_proplist);
 758
 759         pa_assert_se(signal = dbus_message_new_signal(s->path,
 760                                                       PA_DBUSIFACE_STREAM_INTERFACE,
 761                                                       signals[SIGNAL_PROPERTY_LIST_UPDATED].name));
 762         dbus_message_iter_init_append(signal, &msg_iter);
 763         pa_dbus_append_proplist(&msg_iter, s->proplist);
 764
 765         pa_dbus_protocol_send_signal(s->dbus_protocol, signal);
 766         dbus_message_unref(signal);
 767         signal = NULL;
 768     }
 769 }
 770
 771 static pa_hook_result_t send_event_cb(void *hook_data, void *call_data, void *slot_data) {
 772     pa_dbusiface_stream *s = slot_data;
 773     DBusMessage *signal = NULL;
 774     DBusMessageIter msg_iter;
 775     const char *name = NULL;
 776     pa_proplist *property_list = NULL;
 777
 778     pa_assert(call_data);
 779     pa_assert(s);
 780
 781     if (s->type == STREAM_TYPE_PLAYBACK) {
 782         pa_sink_input_send_event_hook_data *data = call_data;
 783
 784         if (data->sink_input != s->sink_input)
 785             return PA_HOOK_OK;
 786
 787         name = data->event;
 788         property_list = data->data;
 789     } else {
 790         pa_source_output_send_event_hook_data *data = call_data;
 791
 792         if (data->source_output != s->source_output)
 793             return PA_HOOK_OK;
 794
 795         name = data->event;
 796         property_list = data->data;
 797     }
 798
 799     pa_assert_se(signal = dbus_message_new_signal(s->path,
 800                                                   PA_DBUSIFACE_STREAM_INTERFACE,
 801                                                   signals[SIGNAL_STREAM_EVENT].name));
 802     dbus_message_iter_init_append(signal, &msg_iter);
 803     pa_assert_se(dbus_message_iter_append_basic(&msg_iter, DBUS_TYPE_STRING, &name));
 804     pa_dbus_append_proplist(&msg_iter, property_list);
 805
 806     pa_dbus_protocol_send_signal(s->dbus_protocol, signal);
 807     dbus_message_unref(signal);
 808
 809     return PA_HOOK_OK;
 810 }
 811
 812 pa_dbusiface_stream *pa_dbusiface_stream_new_playback(pa_dbusiface_core *core, pa_sink_input *sink_input) {
 813     pa_dbusiface_stream *s;
 814
 815     pa_assert(core);
 816     pa_assert(sink_input);
 817
 818     s = pa_xnew(pa_dbusiface_stream, 1);
 819     s->core = core;
 820     s->sink_input = pa_sink_input_ref(sink_input);
 821     s->type = STREAM_TYPE_PLAYBACK;
 822     s->path = pa_sprintf_malloc("%s/%s%u", PA_DBUS_CORE_OBJECT_PATH, PLAYBACK_OBJECT_NAME, sink_input->index);
 823     s->sink = pa_sink_ref(sink_input->sink);
 824     s->sample_rate = sink_input->sample_spec.rate;
 825     pa_sink_input_get_volume(sink_input, &s->volume, TRUE);
 826     s->mute = pa_sink_input_get_mute(sink_input);
 827     s->proplist = pa_proplist_copy(sink_input->proplist);
 828     s->dbus_protocol = pa_dbus_protocol_get(sink_input->core);
 829     s->subscription = pa_subscription_new(sink_input->core, PA_SUBSCRIPTION_MASK_SINK_INPUT, subscription_cb, s);
 830     s->send_event_slot = pa_hook_connect(&sink_input->core->hooks[PA_CORE_HOOK_SINK_INPUT_SEND_EVENT],
 831                                          PA_HOOK_NORMAL,
 832                                          send_event_cb,
 833                                          s);
 834
 835     pa_assert_se(pa_dbus_protocol_add_interface(s->dbus_protocol, s->path, &stream_interface_info, s) >= 0);
 836
 837     return s;
 838 }
 839
 840 pa_dbusiface_stream *pa_dbusiface_stream_new_record(pa_dbusiface_core *core, pa_source_output *source_output) {
 841     pa_dbusiface_stream *s;
 842
 843     pa_assert(core);
 844     pa_assert(source_output);
 845
 846     s = pa_xnew(pa_dbusiface_stream, 1);
 847     s->core = core;
 848     s->source_output = pa_source_output_ref(source_output);
 849     s->type = STREAM_TYPE_RECORD;
 850     s->path = pa_sprintf_malloc("%s/%s%u", PA_DBUS_CORE_OBJECT_PATH, RECORD_OBJECT_NAME, source_output->index);
 851     s->source = pa_source_ref(source_output->source);
 852     s->sample_rate = source_output->sample_spec.rate;
 853     pa_cvolume_init(&s->volume);
 854     s->mute = FALSE;
 855     s->proplist = pa_proplist_copy(source_output->proplist);
 856     s->dbus_protocol = pa_dbus_protocol_get(source_output->core);
 857     s->subscription = pa_subscription_new(source_output->core, PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT, subscription_cb, s);
 858     s->send_event_slot = pa_hook_connect(&source_output->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT],
 859                                          PA_HOOK_NORMAL,
 860                                          send_event_cb,
 861                                          s);
 862
 863     pa_assert_se(pa_dbus_protocol_add_interface(s->dbus_protocol, s->path, &stream_interface_info, s) >= 0);
 864
 865     return s;
 866 }
 867
 868 void pa_dbusiface_stream_free(pa_dbusiface_stream *s) {
 869     pa_assert(s);
 870
 871     pa_assert_se(pa_dbus_protocol_remove_interface(s->dbus_protocol, s->path, stream_interface_info.name) >= 0);
 872
 873     if (s->type == STREAM_TYPE_PLAYBACK) {
 874         pa_sink_input_unref(s->sink_input);
 875         pa_sink_unref(s->sink);
 876     } else {
 877         pa_source_output_unref(s->source_output);
 878         pa_source_unref(s->source);
 879     }
 880
 881     pa_proplist_free(s->proplist);
 882     pa_dbus_protocol_unref(s->dbus_protocol);
 883     pa_subscription_free(s->subscription);
 884     pa_hook_slot_free(s->send_event_slot);
 885
 886     pa_xfree(s->path);
 887     pa_xfree(s);
 888 }
 889
 890 const char *pa_dbusiface_stream_get_path(pa_dbusiface_stream *s) {
 891     pa_assert(s);
 892
 893     return s->path;
 894 }