Adding upstream version 14.2.upstream/14.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1000 insertions, 0 deletions

diff --git a/src/modules/dbus/iface-stream.c b/src/modules/dbus/iface-stream.c
new file mode 100644
index 0000000..ade62ca
--- /dev/null
+++ b/src/modules/dbus/iface-stream.c
@@ -0,0 +1,1000 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2009 Tanu Kaskinen
+  Copyright 2009 Vincent Filali-Ansary <filali.v@azurdigitalnetworks.net>
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2.1 of the License,
+  or (at your option) any later version.
+
+  PulseAudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <pulsecore/core-util.h>
+#include <pulsecore/dbus-util.h>
+#include <pulsecore/protocol-dbus.h>
+
+#include "iface-stream.h"
+
+#define PLAYBACK_OBJECT_NAME "playback_stream"
+#define RECORD_OBJECT_NAME "record_stream"
+
+enum stream_type {
+    STREAM_TYPE_PLAYBACK,
+    STREAM_TYPE_RECORD
+};
+
+struct pa_dbusiface_stream {
+    pa_dbusiface_core *core;
+
+    union {
+        pa_sink_input *sink_input;
+        pa_source_output *source_output;
+    };
+    enum stream_type type;
+    char *path;
+    union {
+        pa_sink *sink;
+        pa_source *source;
+    };
+    uint32_t sample_rate;
+    pa_cvolume volume;
+    dbus_bool_t mute;
+    pa_proplist *proplist;
+
+    bool has_volume;
+
+    pa_dbus_protocol *dbus_protocol;
+    pa_hook_slot *send_event_slot;
+    pa_hook_slot *move_finish_slot;
+    pa_hook_slot *volume_changed_slot;
+    pa_hook_slot *mute_changed_slot;
+    pa_hook_slot *proplist_changed_slot;
+    pa_hook_slot *state_changed_slot;
+};
+
+static void handle_get_index(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_get_driver(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_get_owner_module(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_get_client(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_get_device(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_get_sample_format(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_get_sample_rate(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_get_channels(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_get_volume(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_set_volume(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata);
+static void handle_get_mute(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_set_mute(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata);
+static void handle_get_buffer_latency(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_get_device_latency(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_get_resample_method(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_get_property_list(DBusConnection *conn, DBusMessage *msg, void *userdata);
+
+static void handle_get_all(DBusConnection *conn, DBusMessage *msg, void *userdata);
+
+static void handle_move(DBusConnection *conn, DBusMessage *msg, void *userdata);
+static void handle_kill(DBusConnection *conn, DBusMessage *msg, void *userdata);
+
+enum property_handler_index {
+    PROPERTY_HANDLER_INDEX,
+    PROPERTY_HANDLER_DRIVER,
+    PROPERTY_HANDLER_OWNER_MODULE,
+    PROPERTY_HANDLER_CLIENT,
+    PROPERTY_HANDLER_DEVICE,
+    PROPERTY_HANDLER_SAMPLE_FORMAT,
+    PROPERTY_HANDLER_SAMPLE_RATE,
+    PROPERTY_HANDLER_CHANNELS,
+    PROPERTY_HANDLER_VOLUME,
+    PROPERTY_HANDLER_MUTE,
+    PROPERTY_HANDLER_BUFFER_LATENCY,
+    PROPERTY_HANDLER_DEVICE_LATENCY,
+    PROPERTY_HANDLER_RESAMPLE_METHOD,
+    PROPERTY_HANDLER_PROPERTY_LIST,
+    PROPERTY_HANDLER_MAX
+};
+
+static pa_dbus_property_handler property_handlers[PROPERTY_HANDLER_MAX] = {
+    [PROPERTY_HANDLER_INDEX]           = { .property_name = "Index",          .type = "u",      .get_cb = handle_get_index,           .set_cb = NULL },
+    [PROPERTY_HANDLER_DRIVER]          = { .property_name = "Driver",         .type = "s",      .get_cb = handle_get_driver,          .set_cb = NULL },
+    [PROPERTY_HANDLER_OWNER_MODULE]    = { .property_name = "OwnerModule",    .type = "o",      .get_cb = handle_get_owner_module,    .set_cb = NULL },
+    [PROPERTY_HANDLER_CLIENT]          = { .property_name = "Client",         .type = "o",      .get_cb = handle_get_client,          .set_cb = NULL },
+    [PROPERTY_HANDLER_DEVICE]          = { .property_name = "Device",         .type = "o",      .get_cb = handle_get_device,          .set_cb = NULL },
+    [PROPERTY_HANDLER_SAMPLE_FORMAT]   = { .property_name = "SampleFormat",   .type = "u",      .get_cb = handle_get_sample_format,   .set_cb = NULL },
+    [PROPERTY_HANDLER_SAMPLE_RATE]     = { .property_name = "SampleRate",     .type = "u",      .get_cb = handle_get_sample_rate,     .set_cb = NULL },
+    [PROPERTY_HANDLER_CHANNELS]        = { .property_name = "Channels",       .type = "au",     .get_cb = handle_get_channels,        .set_cb = NULL },
+    [PROPERTY_HANDLER_VOLUME]          = { .property_name = "Volume",         .type = "au",     .get_cb = handle_get_volume,          .set_cb = handle_set_volume },
+    [PROPERTY_HANDLER_MUTE]            = { .property_name = "Mute",           .type = "b",      .get_cb = handle_get_mute,            .set_cb = handle_set_mute },
+    [PROPERTY_HANDLER_BUFFER_LATENCY]  = { .property_name = "BufferLatency",  .type = "t",      .get_cb = handle_get_buffer_latency,  .set_cb = NULL },
+    [PROPERTY_HANDLER_DEVICE_LATENCY]  = { .property_name = "DeviceLatency",  .type = "t",      .get_cb = handle_get_device_latency,  .set_cb = NULL },
+    [PROPERTY_HANDLER_RESAMPLE_METHOD] = { .property_name = "ResampleMethod", .type = "s",      .get_cb = handle_get_resample_method, .set_cb = NULL },
+    [PROPERTY_HANDLER_PROPERTY_LIST]   = { .property_name = "PropertyList",   .type = "a{say}", .get_cb = handle_get_property_list,   .set_cb = NULL }
+};
+
+enum method_handler_index {
+    METHOD_HANDLER_MOVE,
+    METHOD_HANDLER_KILL,
+    METHOD_HANDLER_MAX
+};
+
+static pa_dbus_arg_info move_args[] = { { "device", "o", "in" } };
+
+static pa_dbus_method_handler method_handlers[METHOD_HANDLER_MAX] = {
+    [METHOD_HANDLER_MOVE] = {
+        .method_name = "Move",
+        .arguments = move_args,
+        .n_arguments = sizeof(move_args) / sizeof(pa_dbus_arg_info),
+        .receive_cb = handle_move },
+    [METHOD_HANDLER_KILL] = {
+        .method_name = "Kill",
+        .arguments = NULL,
+        .n_arguments = 0,
+        .receive_cb = handle_kill }
+};
+
+enum signal_index {
+    SIGNAL_DEVICE_UPDATED,
+    SIGNAL_SAMPLE_RATE_UPDATED,
+    SIGNAL_VOLUME_UPDATED,
+    SIGNAL_MUTE_UPDATED,
+    SIGNAL_PROPERTY_LIST_UPDATED,
+    SIGNAL_STREAM_EVENT,
+    SIGNAL_MAX
+};
+
+static pa_dbus_arg_info device_updated_args[]        = { { "device",        "o",      NULL } };
+static pa_dbus_arg_info sample_rate_updated_args[]   = { { "sample_rate",   "u",      NULL } };
+static pa_dbus_arg_info volume_updated_args[]        = { { "volume",        "au",     NULL } };
+static pa_dbus_arg_info mute_updated_args[]          = { { "muted",         "b",      NULL } };
+static pa_dbus_arg_info property_list_updated_args[] = { { "property_list", "a{say}", NULL } };
+static pa_dbus_arg_info stream_event_args[]          = { { "name",          "s",      NULL }, { "property_list", "a{say}", NULL } };
+
+static pa_dbus_signal_info signals[SIGNAL_MAX] = {
+    [SIGNAL_DEVICE_UPDATED]        = { .name = "DeviceUpdated",       .arguments = device_updated_args,        .n_arguments = 1 },
+    [SIGNAL_SAMPLE_RATE_UPDATED]   = { .name = "SampleRateUpdated",   .arguments = sample_rate_updated_args,   .n_arguments = 1 },
+    [SIGNAL_VOLUME_UPDATED]        = { .name = "VolumeUpdated",       .arguments = volume_updated_args,        .n_arguments = 1 },
+    [SIGNAL_MUTE_UPDATED]          = { .name = "MuteUpdated",         .arguments = mute_updated_args,          .n_arguments = 1 },
+    [SIGNAL_PROPERTY_LIST_UPDATED] = { .name = "PropertyListUpdated", .arguments = property_list_updated_args, .n_arguments = 1 },
+    [SIGNAL_STREAM_EVENT]          = { .name = "StreamEvent",         .arguments = stream_event_args,          .n_arguments = sizeof(stream_event_args) / sizeof(pa_dbus_arg_info) }
+};
+
+static pa_dbus_interface_info stream_interface_info = {
+    .name = PA_DBUSIFACE_STREAM_INTERFACE,
+    .method_handlers = method_handlers,
+    .n_method_handlers = METHOD_HANDLER_MAX,
+    .property_handlers = property_handlers,
+    .n_property_handlers = PROPERTY_HANDLER_MAX,
+    .get_all_properties_cb = handle_get_all,
+    .signals = signals,
+    .n_signals = SIGNAL_MAX
+};
+
+static void handle_get_index(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    dbus_uint32_t idx;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    idx = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->index : s->source_output->index;
+
+    pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT32, &idx);
+}
+
+/* The returned string has to be freed with pa_xfree() by the caller. */
+static char *stream_to_string(pa_dbusiface_stream *s) {
+    if (s->type == STREAM_TYPE_PLAYBACK)
+        return pa_sprintf_malloc("Playback stream %u", (unsigned) s->sink_input->index);
+    else
+        return pa_sprintf_malloc("Record stream %u", (unsigned) s->source_output->index);
+}
+
+static void handle_get_driver(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    const char *driver = NULL;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    driver = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->driver : s->source_output->driver;
+
+    if (!driver) {
+        char *str = stream_to_string(s);
+
+        pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "%s doesn't have a driver.", str);
+        pa_xfree(str);
+
+        return;
+    }
+
+    pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_STRING, &driver);
+}
+
+static void handle_get_owner_module(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    pa_module *owner_module = NULL;
+    const char *object_path = NULL;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    owner_module = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->module : s->source_output->module;
+
+    if (!owner_module) {
+        char *str = stream_to_string(s);
+
+        pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "%s doesn't have an owner module.", str);
+        pa_xfree(str);
+
+        return;
+    }
+
+    object_path = pa_dbusiface_core_get_module_path(s->core, owner_module);
+
+    pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &object_path);
+}
+
+static void handle_get_client(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    pa_client *client = NULL;
+    const char *object_path = NULL;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    client = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->client : s->source_output->client;
+
+    if (!client) {
+        char *str = stream_to_string(s);
+
+        pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "%s isn't associated to any client.", str);
+        pa_xfree(str);
+
+        return;
+    }
+
+    object_path = pa_dbusiface_core_get_client_path(s->core, client);
+
+    pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &object_path);
+}
+
+static void handle_get_device(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    const char *device = NULL;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    if (s->type == STREAM_TYPE_PLAYBACK)
+        device = pa_dbusiface_core_get_sink_path(s->core, s->sink);
+    else
+        device = pa_dbusiface_core_get_source_path(s->core, s->source);
+
+    pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &device);
+}
+
+static void handle_get_sample_format(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    dbus_uint32_t sample_format = 0;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    sample_format = (s->type == STREAM_TYPE_PLAYBACK)
+                    ? s->sink_input->sample_spec.format
+                    : s->source_output->sample_spec.format;
+
+    pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT32, &sample_format);
+}
+
+static void handle_get_sample_rate(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT32, &s->sample_rate);
+}
+
+static void handle_get_channels(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    pa_channel_map *channel_map = NULL;
+    dbus_uint32_t channels[PA_CHANNELS_MAX];
+    unsigned i = 0;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    channel_map = (s->type == STREAM_TYPE_PLAYBACK) ? &s->sink_input->channel_map : &s->source_output->channel_map;
+
+    for (i = 0; i < channel_map->channels; ++i)
+        channels[i] = channel_map->map[i];
+
+    pa_dbus_send_basic_array_variant_reply(conn, msg, DBUS_TYPE_UINT32, channels, channel_map->channels);
+}
+
+static void handle_get_volume(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    dbus_uint32_t volume[PA_CHANNELS_MAX];
+    unsigned i = 0;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    if (!s->has_volume) {
+        char *str = stream_to_string(s);
+
+        pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "%s doesn't have volume.", str);
+        pa_xfree(str);
+
+        return;
+    }
+
+    for (i = 0; i < s->volume.channels; ++i)
+        volume[i] = s->volume.values[i];
+
+    pa_dbus_send_basic_array_variant_reply(conn, msg, DBUS_TYPE_UINT32, volume, s->volume.channels);
+}
+
+static void handle_set_volume(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    bool volume_writable = true;
+    DBusMessageIter array_iter;
+    int stream_channels = 0;
+    dbus_uint32_t *volume = NULL;
+    int n_volume_entries = 0;
+    pa_cvolume new_vol;
+    int i = 0;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(iter);
+    pa_assert(s);
+
+    volume_writable = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->volume_writable : false;
+
+    if (!s->has_volume || !volume_writable) {
+        char *str = stream_to_string(s);
+
+        if (!s->has_volume)
+            pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "%s doesn't have volume.", str);
+        else if (!volume_writable)
+            pa_dbus_send_error(conn, msg, DBUS_ERROR_ACCESS_DENIED, "%s has read-only volume.", str);
+        pa_xfree(str);
+
+        return;
+    }
+
+    stream_channels = s->sink_input->channel_map.channels;
+
+    dbus_message_iter_recurse(iter, &array_iter);
+    dbus_message_iter_get_fixed_array(&array_iter, &volume, &n_volume_entries);
+
+    if (n_volume_entries != stream_channels && n_volume_entries != 1) {
+        pa_dbus_send_error(conn, msg, DBUS_ERROR_INVALID_ARGS,
+                           "Expected %u volume entries, got %u.", stream_channels, n_volume_entries);
+        return;
+    }
+
+    pa_cvolume_init(&new_vol);
+    new_vol.channels = n_volume_entries;
+
+    for (i = 0; i < n_volume_entries; ++i) {
+        if (!PA_VOLUME_IS_VALID(volume[i])) {
+            pa_dbus_send_error(conn, msg, DBUS_ERROR_INVALID_ARGS, "Invalid volume: %u", volume[i]);
+            return;
+        }
+        new_vol.values[i] = volume[i];
+    }
+
+    pa_sink_input_set_volume(s->sink_input, &new_vol, true, true);
+
+    pa_dbus_send_empty_reply(conn, msg);
+}
+
+static void handle_get_mute(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    if (s->type == STREAM_TYPE_RECORD) {
+        pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "Record streams don't have mute.");
+        return;
+    }
+
+    pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_BOOLEAN, &s->mute);
+}
+
+static void handle_set_mute(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    dbus_bool_t mute = FALSE;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(iter);
+    pa_assert(s);
+
+    dbus_message_iter_get_basic(iter, &mute);
+
+    if (s->type == STREAM_TYPE_RECORD) {
+        pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "Record streams don't have mute.");
+        return;
+    }
+
+    pa_sink_input_set_mute(s->sink_input, mute, true);
+
+    pa_dbus_send_empty_reply(conn, msg);
+}
+
+static void handle_get_buffer_latency(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    dbus_uint64_t buffer_latency = 0;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    if (s->type == STREAM_TYPE_PLAYBACK)
+        buffer_latency = pa_sink_input_get_latency(s->sink_input, NULL);
+    else
+        buffer_latency = pa_source_output_get_latency(s->source_output, NULL);
+
+    pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT64, &buffer_latency);
+}
+
+static void handle_get_device_latency(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    dbus_uint64_t device_latency = 0;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    if (s->type == STREAM_TYPE_PLAYBACK)
+        pa_sink_input_get_latency(s->sink_input, &device_latency);
+    else
+        pa_source_output_get_latency(s->source_output, &device_latency);
+
+    pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT64, &device_latency);
+}
+
+static void handle_get_resample_method(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    const char *resample_method = NULL;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    if (s->type == STREAM_TYPE_PLAYBACK)
+        resample_method = pa_resample_method_to_string(s->sink_input->actual_resample_method);
+    else
+        resample_method = pa_resample_method_to_string(s->source_output->actual_resample_method);
+
+    if (!resample_method)
+        resample_method = "";
+
+    pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_STRING, &resample_method);
+}
+
+static void handle_get_property_list(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    pa_dbus_send_proplist_variant_reply(conn, msg, s->proplist);
+}
+
+static void handle_get_all(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    DBusMessage *reply = NULL;
+    DBusMessageIter msg_iter;
+    DBusMessageIter dict_iter;
+    dbus_uint32_t idx = 0;
+    const char *driver = NULL;
+    pa_module *owner_module = NULL;
+    const char *owner_module_path = NULL;
+    pa_client *client = NULL;
+    const char *client_path = NULL;
+    const char *device = NULL;
+    dbus_uint32_t sample_format = 0;
+    pa_channel_map *channel_map = NULL;
+    dbus_uint32_t channels[PA_CHANNELS_MAX];
+    dbus_uint32_t volume[PA_CHANNELS_MAX];
+    dbus_uint64_t buffer_latency = 0;
+    dbus_uint64_t device_latency = 0;
+    const char *resample_method = NULL;
+    unsigned i = 0;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    if (s->has_volume) {
+        for (i = 0; i < s->volume.channels; ++i)
+            volume[i] = s->volume.values[i];
+    }
+
+    if (s->type == STREAM_TYPE_PLAYBACK) {
+        idx = s->sink_input->index;
+        driver = s->sink_input->driver;
+        owner_module = s->sink_input->module;
+        client = s->sink_input->client;
+        device = pa_dbusiface_core_get_sink_path(s->core, s->sink);
+        sample_format = s->sink_input->sample_spec.format;
+        channel_map = &s->sink_input->channel_map;
+        buffer_latency = pa_sink_input_get_latency(s->sink_input, &device_latency);
+        resample_method = pa_resample_method_to_string(s->sink_input->actual_resample_method);
+    } else {
+        idx = s->source_output->index;
+        driver = s->source_output->driver;
+        owner_module = s->source_output->module;
+        client = s->source_output->client;
+        device = pa_dbusiface_core_get_source_path(s->core, s->source);
+        sample_format = s->source_output->sample_spec.format;
+        channel_map = &s->source_output->channel_map;
+        buffer_latency = pa_source_output_get_latency(s->source_output, &device_latency);
+        resample_method = pa_resample_method_to_string(s->source_output->actual_resample_method);
+    }
+    if (owner_module)
+        owner_module_path = pa_dbusiface_core_get_module_path(s->core, owner_module);
+    if (client)
+        client_path = pa_dbusiface_core_get_client_path(s->core, client);
+    for (i = 0; i < channel_map->channels; ++i)
+        channels[i] = channel_map->map[i];
+    if (!resample_method)
+        resample_method = "";
+
+    pa_assert_se((reply = dbus_message_new_method_return(msg)));
+
+    dbus_message_iter_init_append(reply, &msg_iter);
+    pa_assert_se(dbus_message_iter_open_container(&msg_iter, DBUS_TYPE_ARRAY, "{sv}", &dict_iter));
+
+    pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_INDEX].property_name, DBUS_TYPE_UINT32, &idx);
+
+    if (driver)
+        pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_DRIVER].property_name, DBUS_TYPE_STRING, &driver);
+
+    if (owner_module)
+        pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_OWNER_MODULE].property_name, DBUS_TYPE_OBJECT_PATH, &owner_module_path);
+
+    if (client)
+        pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_CLIENT].property_name, DBUS_TYPE_OBJECT_PATH, &client_path);
+
+    pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_DEVICE].property_name, DBUS_TYPE_OBJECT_PATH, &device);
+    pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_SAMPLE_FORMAT].property_name, DBUS_TYPE_UINT32, &sample_format);
+    pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_SAMPLE_RATE].property_name, DBUS_TYPE_UINT32, &s->sample_rate);
+    pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_CHANNELS].property_name, DBUS_TYPE_UINT32, channels, channel_map->channels);
+
+    if (s->has_volume) {
+        pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_VOLUME].property_name, DBUS_TYPE_UINT32, volume, s->volume.channels);
+        pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_MUTE].property_name, DBUS_TYPE_BOOLEAN, &s->mute);
+    }
+
+    pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_BUFFER_LATENCY].property_name, DBUS_TYPE_UINT64, &buffer_latency);
+    pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_DEVICE_LATENCY].property_name, DBUS_TYPE_UINT64, &device_latency);
+    pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_RESAMPLE_METHOD].property_name, DBUS_TYPE_STRING, &resample_method);
+    pa_dbus_append_proplist_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_PROPERTY_LIST].property_name, s->proplist);
+
+    pa_assert_se(dbus_message_iter_close_container(&msg_iter, &dict_iter));
+    pa_assert_se(dbus_connection_send(conn, reply, NULL));
+    dbus_message_unref(reply);
+}
+
+static void handle_move(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+    const char *device = NULL;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    pa_assert_se(dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &device, DBUS_TYPE_INVALID));
+
+    if (s->type == STREAM_TYPE_PLAYBACK) {
+        pa_sink *sink = pa_dbusiface_core_get_sink(s->core, device);
+
+        if (!sink) {
+            pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NOT_FOUND, "%s: No such sink.", device);
+            return;
+        }
+
+        if (pa_sink_input_move_to(s->sink_input, sink, true) < 0) {
+            pa_dbus_send_error(conn, msg, DBUS_ERROR_FAILED,
+                               "Moving playback stream %u to sink %s failed.", s->sink_input->index, sink->name);
+            return;
+        }
+    } else {
+        pa_source *source = pa_dbusiface_core_get_source(s->core, device);
+
+        if (!source) {
+            pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NOT_FOUND, "%s: No such source.", device);
+            return;
+        }
+
+        if (pa_source_output_move_to(s->source_output, source, true) < 0) {
+            pa_dbus_send_error(conn, msg, DBUS_ERROR_FAILED,
+                               "Moving record stream %u to source %s failed.", s->source_output->index, source->name);
+            return;
+        }
+    }
+
+    pa_dbus_send_empty_reply(conn, msg);
+}
+
+static void handle_kill(DBusConnection *conn, DBusMessage *msg, void *userdata) {
+    pa_dbusiface_stream *s = userdata;
+
+    pa_assert(conn);
+    pa_assert(msg);
+    pa_assert(s);
+
+    if (s->type == STREAM_TYPE_PLAYBACK)
+        pa_sink_input_kill(s->sink_input);
+    else
+        pa_source_output_kill(s->source_output);
+
+    pa_dbus_send_empty_reply(conn, msg);
+}
+
+static void check_and_signal_rate(pa_dbusiface_stream *s) {
+    DBusMessage *signal_msg = NULL;
+    uint32_t new_sample_rate = 0;
+
+    pa_assert(s);
+
+    new_sample_rate = (s->type == STREAM_TYPE_PLAYBACK)
+                      ? s->sink_input->sample_spec.rate
+                      : s->source_output->sample_spec.rate;
+
+    if (s->sample_rate != new_sample_rate) {
+        s->sample_rate = new_sample_rate;
+
+        pa_assert_se(signal_msg = dbus_message_new_signal(s->path,
+                                                          PA_DBUSIFACE_STREAM_INTERFACE,
+                                                          signals[SIGNAL_SAMPLE_RATE_UPDATED].name));
+        pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_UINT32, &s->sample_rate, DBUS_TYPE_INVALID));
+
+        pa_dbus_protocol_send_signal(s->dbus_protocol, signal_msg);
+        dbus_message_unref(signal_msg);
+    }
+}
+
+static pa_hook_result_t move_finish_cb(void *hook_data, void *call_data, void *slot_data) {
+    pa_dbusiface_stream *s = slot_data;
+    const char *new_device_path = NULL;
+    DBusMessage *signal_msg = NULL;
+
+    if ((s->type == STREAM_TYPE_PLAYBACK && s->sink_input != call_data) ||
+        (s->type == STREAM_TYPE_RECORD && s->source_output != call_data))
+        return PA_HOOK_OK;
+
+    if (s->type == STREAM_TYPE_PLAYBACK) {
+        pa_sink *new_sink = s->sink_input->sink;
+
+        if (s->sink != new_sink) {
+            pa_sink_unref(s->sink);
+            s->sink = pa_sink_ref(new_sink);
+
+            new_device_path = pa_dbusiface_core_get_sink_path(s->core, new_sink);
+
+            pa_assert_se(signal_msg = dbus_message_new_signal(s->path,
+                                                              PA_DBUSIFACE_STREAM_INTERFACE,
+                                                              signals[SIGNAL_DEVICE_UPDATED].name));
+            pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_OBJECT_PATH, &new_device_path, DBUS_TYPE_INVALID));
+
+            pa_dbus_protocol_send_signal(s->dbus_protocol, signal_msg);
+            dbus_message_unref(signal_msg);
+        }
+    } else {
+        pa_source *new_source = s->source_output->source;
+
+        if (s->source != new_source) {
+            pa_source_unref(s->source);
+            s->source = pa_source_ref(new_source);
+
+            new_device_path = pa_dbusiface_core_get_source_path(s->core, new_source);
+
+            pa_assert_se(signal_msg = dbus_message_new_signal(s->path,
+                                                              PA_DBUSIFACE_STREAM_INTERFACE,
+                                                              signals[SIGNAL_DEVICE_UPDATED].name));
+            pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_OBJECT_PATH, &new_device_path, DBUS_TYPE_INVALID));
+
+            pa_dbus_protocol_send_signal(s->dbus_protocol, signal_msg);
+            dbus_message_unref(signal_msg);
+        }
+    }
+
+    check_and_signal_rate(s);
+
+    return PA_HOOK_OK;
+}
+
+static pa_hook_result_t volume_changed_cb(void *hook_data, void *call_data, void *slot_data) {
+    pa_dbusiface_stream *s = slot_data;
+    DBusMessage *signal_msg = NULL;
+    unsigned i = 0;
+
+    if ((s->type == STREAM_TYPE_PLAYBACK && s->sink_input != call_data) ||
+        (s->type == STREAM_TYPE_RECORD && s->source_output != call_data))
+        return PA_HOOK_OK;
+
+    if (s->type == STREAM_TYPE_PLAYBACK && s->has_volume) {
+        pa_cvolume new_volume;
+
+        pa_sink_input_get_volume(s->sink_input, &new_volume, true);
+
+        if (!pa_cvolume_equal(&s->volume, &new_volume)) {
+            dbus_uint32_t volume[PA_CHANNELS_MAX];
+            dbus_uint32_t *volume_ptr = volume;
+
+            s->volume = new_volume;
+
+            for (i = 0; i < s->volume.channels; ++i)
+                volume[i] = s->volume.values[i];
+
+            pa_assert_se(signal_msg = dbus_message_new_signal(s->path,
+                                                              PA_DBUSIFACE_STREAM_INTERFACE,
+                                                              signals[SIGNAL_VOLUME_UPDATED].name));
+            pa_assert_se(dbus_message_append_args(signal_msg,
+                                                  DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32, &volume_ptr, s->volume.channels,
+                                                  DBUS_TYPE_INVALID));
+
+            pa_dbus_protocol_send_signal(s->dbus_protocol, signal_msg);
+            dbus_message_unref(signal_msg);
+        }
+    }
+
+    return PA_HOOK_OK;
+}
+
+static pa_hook_result_t mute_changed_cb(void *hook_data, void *call_data, void *slot_data) {
+    pa_dbusiface_stream *s = slot_data;
+    DBusMessage *signal_msg = NULL;
+
+    if ((s->type == STREAM_TYPE_PLAYBACK && s->sink_input != call_data) ||
+        (s->type == STREAM_TYPE_RECORD && s->source_output != call_data))
+        return PA_HOOK_OK;
+
+    if (s->type == STREAM_TYPE_PLAYBACK) {
+        bool new_mute = false;
+
+        new_mute = s->sink_input->muted;
+
+        if (s->mute != new_mute) {
+            s->mute = new_mute;
+
+            pa_assert_se(signal_msg = dbus_message_new_signal(s->path,
+                                                              PA_DBUSIFACE_STREAM_INTERFACE,
+                                                              signals[SIGNAL_MUTE_UPDATED].name));
+            pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_BOOLEAN, &s->mute, DBUS_TYPE_INVALID));
+
+            pa_dbus_protocol_send_signal(s->dbus_protocol, signal_msg);
+            dbus_message_unref(signal_msg);
+            signal_msg = NULL;
+        }
+    }
+
+    return PA_HOOK_OK;
+}
+
+static pa_hook_result_t proplist_changed_cb(void *hook_data, void *call_data, void *slot_data) {
+    pa_dbusiface_stream *s = slot_data;
+    DBusMessage *signal_msg = NULL;
+    pa_proplist *new_proplist = NULL;
+
+    if ((s->type == STREAM_TYPE_PLAYBACK && s->sink_input != call_data) ||
+        (s->type == STREAM_TYPE_RECORD && s->source_output != call_data))
+        return PA_HOOK_OK;
+
+    new_proplist = (s->type == STREAM_TYPE_PLAYBACK) ? s->sink_input->proplist : s->source_output->proplist;
+
+    if (!pa_proplist_equal(s->proplist, new_proplist)) {
+        DBusMessageIter msg_iter;
+
+        pa_proplist_update(s->proplist, PA_UPDATE_SET, new_proplist);
+
+        pa_assert_se(signal_msg = dbus_message_new_signal(s->path,
+                                                          PA_DBUSIFACE_STREAM_INTERFACE,
+                                                          signals[SIGNAL_PROPERTY_LIST_UPDATED].name));
+        dbus_message_iter_init_append(signal_msg, &msg_iter);
+        pa_dbus_append_proplist(&msg_iter, s->proplist);
+
+        pa_dbus_protocol_send_signal(s->dbus_protocol, signal_msg);
+        dbus_message_unref(signal_msg);
+    }
+
+    return PA_HOOK_OK;
+}
+
+static pa_hook_result_t state_changed_cb(void *hook_data, void *call_data, void *slot_data) {
+    pa_dbusiface_stream *s = slot_data;
+
+    pa_assert(s);
+
+    if ((s->type == STREAM_TYPE_PLAYBACK && s->sink_input != call_data) ||
+        (s->type == STREAM_TYPE_RECORD && s->source_output != call_data))
+        return PA_HOOK_OK;
+
+    check_and_signal_rate(s);
+
+    return PA_HOOK_OK;
+}
+
+static pa_hook_result_t send_event_cb(void *hook_data, void *call_data, void *slot_data) {
+    pa_dbusiface_stream *s = slot_data;
+    DBusMessage *signal_msg = NULL;
+    DBusMessageIter msg_iter;
+    const char *name = NULL;
+    pa_proplist *property_list = NULL;
+
+    pa_assert(call_data);
+    pa_assert(s);
+
+    if (s->type == STREAM_TYPE_PLAYBACK) {
+        pa_sink_input_send_event_hook_data *data = call_data;
+
+        if (data->sink_input != s->sink_input)
+            return PA_HOOK_OK;
+
+        name = data->event;
+        property_list = data->data;
+    } else {
+        pa_source_output_send_event_hook_data *data = call_data;
+
+        if (data->source_output != s->source_output)
+            return PA_HOOK_OK;
+
+        name = data->event;
+        property_list = data->data;
+    }
+
+    pa_assert_se(signal_msg = dbus_message_new_signal(s->path,
+                                                      PA_DBUSIFACE_STREAM_INTERFACE,
+                                                      signals[SIGNAL_STREAM_EVENT].name));
+    dbus_message_iter_init_append(signal_msg, &msg_iter);
+    pa_assert_se(dbus_message_iter_append_basic(&msg_iter, DBUS_TYPE_STRING, &name));
+    pa_dbus_append_proplist(&msg_iter, property_list);
+
+    pa_dbus_protocol_send_signal(s->dbus_protocol, signal_msg);
+    dbus_message_unref(signal_msg);
+
+    return PA_HOOK_OK;
+}
+
+pa_dbusiface_stream *pa_dbusiface_stream_new_playback(pa_dbusiface_core *core, pa_sink_input *sink_input) {
+    pa_dbusiface_stream *s;
+
+    pa_assert(core);
+    pa_assert(sink_input);
+
+    s = pa_xnew(pa_dbusiface_stream, 1);
+    s->core = core;
+    s->sink_input = pa_sink_input_ref(sink_input);
+    s->type = STREAM_TYPE_PLAYBACK;
+    s->path = pa_sprintf_malloc("%s/%s%u", PA_DBUS_CORE_OBJECT_PATH, PLAYBACK_OBJECT_NAME, sink_input->index);
+    s->sink = pa_sink_ref(sink_input->sink);
+    s->sample_rate = sink_input->sample_spec.rate;
+    s->has_volume = pa_sink_input_is_volume_readable(sink_input);
+
+    if (s->has_volume)
+        pa_sink_input_get_volume(sink_input, &s->volume, true);
+    else
+        pa_cvolume_init(&s->volume);
+
+    s->mute = sink_input->muted;
+    s->proplist = pa_proplist_copy(sink_input->proplist);
+    s->dbus_protocol = pa_dbus_protocol_get(sink_input->core);
+    s->send_event_slot = pa_hook_connect(&sink_input->core->hooks[PA_CORE_HOOK_SINK_INPUT_SEND_EVENT],
+                                         PA_HOOK_NORMAL,
+                                         send_event_cb,
+                                         s);
+    s->move_finish_slot = pa_hook_connect(&sink_input->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH],
+                                          PA_HOOK_NORMAL, move_finish_cb, s);
+    s->volume_changed_slot = pa_hook_connect(&sink_input->core->hooks[PA_CORE_HOOK_SINK_INPUT_VOLUME_CHANGED],
+                                             PA_HOOK_NORMAL, volume_changed_cb, s);
+    s->mute_changed_slot = pa_hook_connect(&sink_input->core->hooks[PA_CORE_HOOK_SINK_INPUT_MUTE_CHANGED],
+                                           PA_HOOK_NORMAL, mute_changed_cb, s);
+    s->proplist_changed_slot = pa_hook_connect(&sink_input->core->hooks[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED],
+                                               PA_HOOK_NORMAL, proplist_changed_cb, s);
+    s->state_changed_slot = pa_hook_connect(&sink_input->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED],
+                                            PA_HOOK_NORMAL, state_changed_cb, s);
+
+    pa_assert_se(pa_dbus_protocol_add_interface(s->dbus_protocol, s->path, &stream_interface_info, s) >= 0);
+
+    return s;
+}
+
+pa_dbusiface_stream *pa_dbusiface_stream_new_record(pa_dbusiface_core *core, pa_source_output *source_output) {
+    pa_dbusiface_stream *s;
+
+    pa_assert(core);
+    pa_assert(source_output);
+
+    s = pa_xnew(pa_dbusiface_stream, 1);
+    s->core = core;
+    s->source_output = pa_source_output_ref(source_output);
+    s->type = STREAM_TYPE_RECORD;
+    s->path = pa_sprintf_malloc("%s/%s%u", PA_DBUS_CORE_OBJECT_PATH, RECORD_OBJECT_NAME, source_output->index);
+    s->source = pa_source_ref(source_output->source);
+    s->sample_rate = source_output->sample_spec.rate;
+    pa_cvolume_init(&s->volume);
+    s->mute = false;
+    s->proplist = pa_proplist_copy(source_output->proplist);
+    s->has_volume = false;
+    s->dbus_protocol = pa_dbus_protocol_get(source_output->core);
+    s->send_event_slot = pa_hook_connect(&source_output->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT],
+                                         PA_HOOK_NORMAL,
+                                         send_event_cb,
+                                         s);
+    s->move_finish_slot = pa_hook_connect(&source_output->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH],
+                                          PA_HOOK_NORMAL, move_finish_cb, s);
+    s->volume_changed_slot = pa_hook_connect(&source_output->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_VOLUME_CHANGED],
+                                             PA_HOOK_NORMAL, volume_changed_cb, s);
+    s->mute_changed_slot = pa_hook_connect(&source_output->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MUTE_CHANGED],
+                                           PA_HOOK_NORMAL, mute_changed_cb, s);
+    s->proplist_changed_slot = pa_hook_connect(&source_output->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED],
+                                               PA_HOOK_NORMAL, proplist_changed_cb, s);
+    s->state_changed_slot = pa_hook_connect(&source_output->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED],
+                                            PA_HOOK_NORMAL, state_changed_cb, s);
+
+    pa_assert_se(pa_dbus_protocol_add_interface(s->dbus_protocol, s->path, &stream_interface_info, s) >= 0);
+
+    return s;
+}
+
+void pa_dbusiface_stream_free(pa_dbusiface_stream *s) {
+    pa_assert(s);
+
+    pa_assert_se(pa_dbus_protocol_remove_interface(s->dbus_protocol, s->path, stream_interface_info.name) >= 0);
+
+    if (s->type == STREAM_TYPE_PLAYBACK) {
+        pa_sink_input_unref(s->sink_input);
+        pa_sink_unref(s->sink);
+    } else {
+        pa_source_output_unref(s->source_output);
+        pa_source_unref(s->source);
+    }
+
+    pa_proplist_free(s->proplist);
+    pa_dbus_protocol_unref(s->dbus_protocol);
+    pa_hook_slot_free(s->send_event_slot);
+    pa_hook_slot_free(s->move_finish_slot);
+    pa_hook_slot_free(s->volume_changed_slot);
+    pa_hook_slot_free(s->mute_changed_slot);
+    pa_hook_slot_free(s->proplist_changed_slot);
+    pa_hook_slot_free(s->state_changed_slot);
+
+    pa_xfree(s->path);
+    pa_xfree(s);
+}
+
+const char *pa_dbusiface_stream_get_path(pa_dbusiface_stream *s) {
+    pa_assert(s);
+
+    return s->path;
+}