---
Makefile.am | 1 +
audio/video-source.c | 570 ++++++++++++++++++++++++++++++++++++++++++++++++++
audio/video-source.h | 45 ++++
3 files changed, 616 insertions(+), 0 deletions(-)
create mode 100644 audio/video-source.c
create mode 100644 audio/video-source.h
diff --git a/Makefile.am b/Makefile.am
index 87b32a4..5498543 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -143,6 +143,7 @@ builtin_sources += audio/main.c \
audio/a2dp.h audio/a2dp.c \
audio/vdp.h audio/vdp.c \
audio/video-sink.h audio/video-sink.c \
+ audio/video-source.h audio/video-source.c \
audio/avdtp.h audio/avdtp.c \
audio/ipc.h audio/ipc.c \
audio/unix.h audio/unix.c \
diff --git a/audio/video-source.c b/audio/video-source.c
new file mode 100644
index 0000000..aa71de7
--- /dev/null
+++ b/audio/video-source.c
@@ -0,0 +1,570 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2006-2010 Nokia Corporation
+ * Copyright (C) 2004-2010 Marcel Holtmann <marcel@xxxxxxxxxxxx>
+ * Copyright (C) 2009 Joao Paulo Rechi Vita
+ * Copyright (C) 2011 Prasad Bhat <prasadbhat22@xxxxxxxxx>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdint.h>
+#include <errno.h>
+
+#include <bluetooth/bluetooth.h>
+#include <bluetooth/sdp.h>
+
+#include <glib.h>
+#include <dbus/dbus.h>
+#include <gdbus.h>
+
+#include "log.h"
+
+#include "device.h"
+#include "avdtp.h"
+#include "media.h"
+#include "vdp.h"
+#include "error.h"
+#include "video-source.h"
+#include "dbus-common.h"
+#include "../src/adapter.h"
+#include "../src/device.h"
+
+#define STREAM_SETUP_RETRY_TIMER 2
+
+struct pending_request {
+ DBusConnection *conn;
+ DBusMessage *msg;
+ unsigned int id;
+};
+
+struct video_source {
+ struct audio_device *dev;
+ struct avdtp *session;
+ struct avdtp_stream *stream;
+ unsigned int cb_id;
+ guint retry_id;
+ avdtp_session_state_t session_state;
+ avdtp_state_t stream_state;
+ video_source_state_t state;
+ struct pending_request *connect;
+ struct pending_request *disconnect;
+ DBusConnection *conn;
+};
+
+struct video_source_state_callback {
+ video_source_state_cb cb;
+ void *user_data;
+ unsigned int id;
+};
+
+static GSList *source_callbacks = NULL;
+
+static unsigned int avdtp_callback_id = 0;
+
+static const char *state2str(video_source_state_t state)
+{
+ switch (state) {
+ case VIDEO_SOURCE_STATE_DISCONNECTED:
+ return "disconnected";
+ case VIDEO_SOURCE_STATE_CONNECTING:
+ return "connecting";
+ case VIDEO_SOURCE_STATE_CONNECTED:
+ return "connected";
+ case VIDEO_SOURCE_STATE_PLAYING:
+ return "playing";
+ default:
+ error("Invalid source state %d", state);
+ return NULL;
+ }
+}
+
+static void source_set_state(struct audio_device *dev, video_source_state_t new_state)
+{
+ struct video_source *source = dev->video_source;
+ const char *state_str;
+ video_source_state_t old_state = source->state;
+ GSList *l;
+
+ source->state = new_state;
+
+ state_str = state2str(new_state);
+ if (state_str)
+ emit_property_changed(dev->conn, dev->path,
+ VIDEO_SOURCE_INTERFACE, "State",
+ DBUS_TYPE_STRING, &state_str);
+
+ for (l = source_callbacks; l != NULL; l = l->next) {
+ struct video_source_state_callback *cb = l->data;
+ cb->cb(dev, old_state, new_state, cb->user_data);
+ }
+}
+
+static void avdtp_state_callback(struct audio_device *dev,
+ struct avdtp *session,
+ avdtp_session_state_t old_state,
+ avdtp_session_state_t new_state,
+ void *user_data)
+{
+ struct video_source *source = dev->video_source;
+
+ if (source == NULL)
+ return;
+
+ switch (new_state) {
+ case AVDTP_SESSION_STATE_DISCONNECTED:
+ source_set_state(dev, VIDEO_SOURCE_STATE_DISCONNECTED);
+ break;
+ case AVDTP_SESSION_STATE_CONNECTING:
+ source_set_state(dev, VIDEO_SOURCE_STATE_CONNECTING);
+ break;
+ case AVDTP_SESSION_STATE_CONNECTED:
+ break;
+ }
+
+ source->session_state = new_state;
+}
+
+static void pending_request_free(struct audio_device *dev,
+ struct pending_request *pending)
+{
+ if (pending->conn)
+ dbus_connection_unref(pending->conn);
+ if (pending->msg)
+ dbus_message_unref(pending->msg);
+ if (pending->id)
+ vdp_cancel(dev, pending->id);
+
+ g_free(pending);
+}
+
+static void stream_state_changed(struct avdtp_stream *stream,
+ avdtp_state_t old_state,
+ avdtp_state_t new_state,
+ struct avdtp_error *err,
+ void *user_data)
+{
+ struct audio_device *dev = user_data;
+ struct video_source *source = dev->video_source;
+
+ if (err)
+ return;
+
+ switch (new_state) {
+ case AVDTP_STATE_IDLE:
+ if (source->disconnect) {
+ DBusMessage *reply;
+ struct pending_request *p;
+
+ p = source->disconnect;
+ source->disconnect = NULL;
+
+ reply = dbus_message_new_method_return(p->msg);
+ g_dbus_send_message(p->conn, reply);
+ pending_request_free(dev, p);
+ }
+
+ if (source->session) {
+ avdtp_unref(source->session);
+ source->session = NULL;
+ }
+ source->stream = NULL;
+ source->cb_id = 0;
+ break;
+ case AVDTP_STATE_OPEN:
+ source_set_state(dev, VIDEO_SOURCE_STATE_CONNECTED);
+ break;
+ case AVDTP_STATE_STREAMING:
+ source_set_state(dev, VIDEO_SOURCE_STATE_PLAYING);
+ break;
+ case AVDTP_STATE_CONFIGURED:
+ case AVDTP_STATE_CLOSING:
+ case AVDTP_STATE_ABORTING:
+ default:
+ break;
+ }
+
+ source->stream_state = new_state;
+}
+
+static void error_failed(DBusConnection *conn, DBusMessage *msg,
+ const char *desc)
+{
+ DBusMessage *reply = btd_error_failed(msg, desc);
+ g_dbus_send_message(conn, reply);
+}
+
+static gboolean stream_setup_retry(gpointer user_data)
+{
+ struct video_source *source = user_data;
+ struct pending_request *pending = source->connect;
+
+ source->retry_id = 0;
+
+ if (source->stream_state >= AVDTP_STATE_OPEN) {
+ DBG("Stream successfully created, after XCASE connect:connect");
+ if (pending->msg) {
+ DBusMessage *reply;
+ reply = dbus_message_new_method_return(pending->msg);
+ g_dbus_send_message(pending->conn, reply);
+ }
+ } else {
+ DBG("Stream setup failed, after XCASE connect:connect");
+ if (pending->msg)
+ error_failed(pending->conn, pending->msg, "Stream setup failed");
+ }
+
+ source->connect = NULL;
+ pending_request_free(source->dev, pending);
+
+ return FALSE;
+}
+
+static void stream_setup_complete(struct avdtp *session, struct vdp_sep *sep,
+ struct avdtp_stream *stream,
+ struct avdtp_error *err, void *user_data)
+{
+ struct video_source *source = user_data;
+ struct pending_request *pending;
+
+ pending = source->connect;
+
+ pending->id = 0;
+
+ if (stream) {
+ DBG("Stream successfully created");
+
+ if (pending->msg) {
+ DBusMessage *reply;
+ reply = dbus_message_new_method_return(pending->msg);
+ g_dbus_send_message(pending->conn, reply);
+ }
+
+ source->connect = NULL;
+ pending_request_free(source->dev, pending);
+
+ return;
+ }
+
+ avdtp_unref(source->session);
+ source->session = NULL;
+ if (avdtp_error_category(err) == AVDTP_ERRNO
+ && avdtp_error_posix_errno(err) != EHOSTDOWN) {
+ DBG("connect:connect XCASE detected");
+ source->retry_id = g_timeout_add_seconds(STREAM_SETUP_RETRY_TIMER,
+ stream_setup_retry,
+ source);
+ } else {
+ if (pending->msg)
+ error_failed(pending->conn, pending->msg, "Stream setup failed");
+ source->connect = NULL;
+ pending_request_free(source->dev, pending);
+ DBG("Stream setup failed : %s", avdtp_strerror(err));
+ }
+}
+
+static void select_complete(struct avdtp *session, struct vdp_sep *sep,
+ GSList *caps, void *user_data)
+{
+ struct video_source *source = user_data;
+ struct pending_request *pending;
+ int id;
+
+ pending = source->connect;
+
+ pending->id = 0;
+
+ if (caps == NULL)
+ goto failed;
+
+ id = vdp_config(session, sep, stream_setup_complete, caps, source);
+ if (id == 0)
+ goto failed;
+
+ pending->id = id;
+ return;
+
+failed:
+ if (pending->msg)
+ error_failed(pending->conn, pending->msg, "Stream setup failed");
+ pending_request_free(source->dev, pending);
+ source->connect = NULL;
+ avdtp_unref(source->session);
+ source->session = NULL;
+}
+
+static void discovery_complete(struct avdtp *session, GSList *seps, struct avdtp_error *err,
+ void *user_data)
+{
+ struct video_source *source = user_data;
+ struct pending_request *pending;
+ int id;
+
+ pending = source->connect;
+
+ if (err) {
+ avdtp_unref(source->session);
+ source->session = NULL;
+ if (avdtp_error_category(err) == AVDTP_ERRNO
+ && avdtp_error_posix_errno(err) != EHOSTDOWN) {
+ DBG("connect:connect XCASE detected");
+ source->retry_id =
+ g_timeout_add_seconds(STREAM_SETUP_RETRY_TIMER,
+ stream_setup_retry,
+ source);
+ } else
+ goto failed;
+ return;
+ }
+
+ DBG("Discovery complete");
+
+ id = vdp_select_capabilities(source->session, AVDTP_SEP_TYPE_SOURCE, NULL,
+ select_complete, source);
+ if (id == 0)
+ goto failed;
+
+ pending->id = id;
+ return;
+
+failed:
+ if (pending->msg)
+ error_failed(pending->conn, pending->msg, "Stream setup failed");
+ pending_request_free(source->dev, pending);
+ source->connect = NULL;
+ avdtp_unref(source->session);
+ source->session = NULL;
+}
+
+gboolean video_source_setup_stream(struct video_source *source, struct avdtp *session)
+{
+ if (source->connect || source->disconnect)
+ return FALSE;
+
+ if (session && !source->session)
+ source->session = avdtp_ref(session);
+
+ if (!source->session)
+ return FALSE;
+
+ avdtp_set_auto_disconnect(source->session, FALSE);
+
+ if (avdtp_discover(source->session, discovery_complete, source) < 0)
+ return FALSE;
+
+ source->connect = g_new0(struct pending_request, 1);
+
+ return TRUE;
+}
+
+static DBusMessage *source_connect(DBusConnection *conn,
+ DBusMessage *msg, void *data)
+{
+ struct audio_device *dev = data;
+ struct video_source *source = dev->video_source;
+ struct pending_request *pending;
+
+ if (!source->session)
+ source->session = avdtp_get(&dev->src, &dev->dst);
+
+ if (!source->session)
+ return btd_error_failed(msg, "Unable to get a session");
+
+ if (source->connect || source->disconnect)
+ return btd_error_busy(msg);
+
+ if (source->stream_state >= AVDTP_STATE_OPEN)
+ return btd_error_already_connected(msg);
+
+ if (!video_source_setup_stream(source, NULL))
+ return btd_error_failed(msg, "Failed to create a stream");
+
+ dev->auto_connect = FALSE;
+
+ pending = source->connect;
+
+ pending->conn = dbus_connection_ref(conn);
+ pending->msg = dbus_message_ref(msg);
+
+ DBG("stream creation in progress");
+
+ return NULL;
+}
+
+static DBusMessage *source_disconnect(DBusConnection *conn,
+ DBusMessage *msg, void *data)
+{
+ struct audio_device *device = data;
+ struct video_source *source = device->video_source;
+ struct pending_request *pending;
+ int err;
+
+ if (!source->session)
+ return btd_error_not_connected(msg);
+
+ if (source->connect || source->disconnect)
+ return btd_error_busy(msg);
+
+ if (source->stream_state < AVDTP_STATE_OPEN) {
+ DBusMessage *reply = dbus_message_new_method_return(msg);
+ if (!reply)
+ return NULL;
+ avdtp_unref(source->session);
+ source->session = NULL;
+ return reply;
+ }
+
+ err = avdtp_close(source->session, source->stream, FALSE);
+ if (err < 0)
+ return btd_error_failed(msg, strerror(-err));
+
+ pending = g_new0(struct pending_request, 1);
+ pending->conn = dbus_connection_ref(conn);
+ pending->msg = dbus_message_ref(msg);
+ source->disconnect = pending;
+
+ return NULL;
+}
+
+static DBusMessage *source_get_properties(DBusConnection *conn,
+ DBusMessage *msg, void *data)
+{
+ struct audio_device *device = data;
+ struct video_source *source = device->video_source;
+ DBusMessage *reply;
+ DBusMessageIter iter;
+ DBusMessageIter dict;
+ const char *state;
+
+ reply = dbus_message_new_method_return(msg);
+ if (!reply)
+ return NULL;
+
+ dbus_message_iter_init_append(reply, &iter);
+
+ dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
+
+ /* State */
+ state = state2str(source->state);
+ if (state)
+ dict_append_entry(&dict, "State", DBUS_TYPE_STRING, &state);
+
+ dbus_message_iter_close_container(&iter, &dict);
+
+ return reply;
+}
+
+static GDBusMethodTable source_methods[] = {
+ { "Connect", "", "", source_connect,
+ G_DBUS_METHOD_FLAG_ASYNC },
+ { "Disconnect", "", "", source_disconnect,
+ G_DBUS_METHOD_FLAG_ASYNC },
+ { "GetProperties", "", "a{sv}",source_get_properties },
+ { NULL, NULL, NULL, NULL }
+};
+
+
+static GDBusSignalTable source_signals[] = {
+ { "PropertyChanged", "sv" },
+ { NULL, NULL }
+};
+
+static void video_source_free(struct audio_device *dev)
+{
+ struct video_source *source = dev->video_source;
+
+ if (source->cb_id)
+ avdtp_stream_remove_cb(source->session, source->stream,
+ source->cb_id);
+
+ if (source->session)
+ avdtp_unref(source->session);
+
+ if (source->connect)
+ pending_request_free(dev, source->connect);
+
+ if (source->disconnect)
+ pending_request_free(dev, source->disconnect);
+
+ if (source->retry_id)
+ g_source_remove(source->retry_id);
+
+ g_free(source);
+ dev->source = NULL;
+}
+
+static void path_unregister(void *data)
+{
+ struct audio_device *dev = data;
+
+ DBG("Unregistered interface %s on path %s",
+ VIDEO_SOURCE_INTERFACE, dev->path);
+
+ video_source_free(dev);
+}
+
+struct video_source *video_source_register(struct audio_device *dev)
+{
+ struct video_source *source;
+
+ if (!g_dbus_register_interface(dev->conn, dev->path,
+ VIDEO_SOURCE_INTERFACE,
+ source_methods, source_signals, NULL,
+ dev, path_unregister))
+ return NULL;
+
+ DBG("Registered interface %s on path %s", VIDEO_SOURCE_INTERFACE,
+ dev->path);
+
+ if (avdtp_callback_id == 0)
+ avdtp_callback_id = avdtp_add_state_cb(avdtp_state_callback,
+ NULL);
+
+ source = g_new0(struct video_source, 1);
+
+ source->dev = dev;
+
+ return source;
+}
+
+gboolean video_source_new_stream(struct audio_device *dev, struct avdtp *session,
+ struct avdtp_stream *stream)
+{
+ struct video_source *source = dev->video_source;
+
+ if (source->stream)
+ return FALSE;
+
+ if (!source->session)
+ source->session = avdtp_ref(session);
+
+ source->stream = stream;
+
+ source->cb_id = avdtp_stream_add_cb(session, stream,
+ stream_state_changed, dev);
+
+ return TRUE;
+}
diff --git a/audio/video-source.h b/audio/video-source.h
new file mode 100644
index 0000000..97af55f
--- /dev/null
+++ b/audio/video-source.h
@@ -0,0 +1,45 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2006-2010 Nokia Corporation
+ * Copyright (C) 2004-2010 Marcel Holtmann <marcel@xxxxxxxxxxxx>
+ * Copyright (C) 2011 Prasad Bhat <prasadbhat22@xxxxxxxxx>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#define VIDEO_SOURCE_INTERFACE "org.bluez.VideoSource"
+
+typedef enum {
+ VIDEO_SOURCE_STATE_DISCONNECTED,
+ VIDEO_SOURCE_STATE_CONNECTING,
+ VIDEO_SOURCE_STATE_CONNECTED,
+ VIDEO_SOURCE_STATE_PLAYING,
+} video_source_state_t;
+
+typedef void (*video_source_state_cb) (struct audio_device *dev,
+ video_source_state_t old_state,
+ video_source_state_t new_state,
+ void *user_data);
+struct video_source *video_source_register(struct audio_device *dev);
+void video_source_unregister(struct audio_device *dev);
+
+gboolean video_source_new_stream(struct audio_device *dev,
+ struct avdtp *session,
+ struct avdtp_stream *stream);
+gboolean video_source_setup_stream(struct video_source *source, struct avdtp *session);
--
1.7.6
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