mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-01-10 17:35:59 +00:00
avdtpsrc: Add support for AVRCP metadata
Metadata from AVRCP is emitted as tags, and the duration from AVRCP is used in queries by avdtpsrc.
This commit is contained in:
parent
6e749f17da
commit
967046d3a5
6 changed files with 487 additions and 1 deletions
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@ -5,7 +5,8 @@ libgstbluez_la_SOURCES = \
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gsta2dpsink.c \
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gstavdtpsink.c \
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gstavdtpsrc.c \
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gstavdtputil.c
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gstavdtputil.c \
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gstavrcputil.c
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nodist_libgstbluez_la_SOURCES = \
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$(BUILT_SOURCES)
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@ -68,6 +68,8 @@ static void gst_avdtp_src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static GstCaps *gst_avdtp_src_getcaps (GstBaseSrc * bsrc, GstCaps * filter);
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static gboolean gst_avdtp_src_query (GstPad * pad, GstObject * parent,
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GstQuery * query);
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static gboolean gst_avdtp_src_start (GstBaseSrc * bsrc);
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static gboolean gst_avdtp_src_stop (GstBaseSrc * bsrc);
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static GstFlowReturn gst_avdtp_src_create (GstBaseSrc * bsrc, guint64 offset,
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@ -117,9 +119,14 @@ gst_avdtp_src_init (GstAvdtpSrc * avdtpsrc)
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{
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avdtpsrc->poll = gst_poll_new (TRUE);
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avdtpsrc->duration = GST_CLOCK_TIME_NONE;
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gst_base_src_set_format (GST_BASE_SRC (avdtpsrc), GST_FORMAT_TIME);
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gst_base_src_set_live (GST_BASE_SRC (avdtpsrc), TRUE);
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gst_base_src_set_do_timestamp (GST_BASE_SRC (avdtpsrc), TRUE);
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gst_pad_set_query_function (GST_BASE_SRC_PAD (avdtpsrc),
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GST_DEBUG_FUNCPTR (gst_avdtp_src_query));
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}
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static void
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@ -169,6 +176,35 @@ gst_avdtp_src_set_property (GObject * object, guint prop_id,
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}
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}
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static gboolean
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gst_avdtp_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
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{
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GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (gst_pad_get_parent_element (pad));
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gboolean ret = FALSE;
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_DURATION:{
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GstFormat format;
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if (avdtpsrc->duration != GST_CLOCK_TIME_NONE) {
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gst_query_parse_duration (query, &format, NULL);
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if (format == GST_FORMAT_TIME) {
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gst_query_set_duration (query, format, (gint64) avdtpsrc->duration);
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ret = TRUE;
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}
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}
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break;
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}
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default:
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ret = gst_pad_query_default (pad, parent, query);
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}
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return ret;
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}
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static GstCaps *
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gst_avdtp_src_getcaps (GstBaseSrc * bsrc, GstCaps * filter)
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{
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@ -247,6 +283,54 @@ gst_avdtp_src_getcaps (GstBaseSrc * bsrc, GstCaps * filter)
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return ret;
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}
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static void
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avrcp_metadata_cb (GstAvrcpConnection * avrcp, GstTagList * taglist,
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gpointer user_data)
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{
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GstAvdtpSrc *src = GST_AVDTP_SRC (user_data);
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guint64 duration;
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if (gst_tag_list_get_uint64 (taglist, GST_TAG_DURATION, &duration)) {
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src->duration = duration;
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gst_element_post_message (GST_ELEMENT (src),
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gst_message_new_duration_changed (GST_OBJECT (src)));
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}
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gst_pad_push_event (GST_BASE_SRC_PAD (src),
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gst_event_new_tag (gst_tag_list_copy (taglist)));
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gst_element_post_message (GST_ELEMENT (src),
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gst_message_new_tag (GST_OBJECT (src), taglist));
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}
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static void
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gst_avdtp_src_start_avrcp (GstAvdtpSrc * src)
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{
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gchar *path, **strv;
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int i;
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/* Strip out the /fdX in /org/bluez/dev_.../fdX */
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strv = g_strsplit (src->conn.transport, "/", -1);
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for (i = 0; strv[i]; i++);
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g_return_if_fail (i > 0);
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g_free (strv[i - 1]);
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strv[i - 1] = NULL;
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path = g_strjoinv ("/", strv);
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g_strfreev (strv);
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src->avrcp = gst_avrcp_connection_new (path, avrcp_metadata_cb, src, NULL);
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g_free (path);
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}
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static void
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gst_avdtp_src_stop_avrcp (GstAvdtpSrc * src)
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{
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gst_avrcp_connection_free (src->avrcp);
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}
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static gboolean
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gst_avdtp_src_start (GstBaseSrc * bsrc)
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{
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@ -291,6 +375,8 @@ gst_avdtp_src_start (GstBaseSrc * bsrc)
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g_atomic_int_set (&avdtpsrc->unlocked, FALSE);
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gst_avdtp_src_start_avrcp (avdtpsrc);
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return TRUE;
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fail:
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@ -306,6 +392,7 @@ gst_avdtp_src_stop (GstBaseSrc * bsrc)
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gst_poll_remove_fd (avdtpsrc->poll, &avdtpsrc->pfd);
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gst_poll_set_flushing (avdtpsrc->poll, TRUE);
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gst_avdtp_src_stop_avrcp (avdtpsrc);
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gst_avdtp_connection_release (&avdtpsrc->conn);
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if (avdtpsrc->dev_caps) {
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@ -27,6 +27,7 @@
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#include <gst/gst.h>
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#include <gst/base/gstbasesrc.h>
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#include "gstavdtputil.h"
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#include "gstavrcputil.h"
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G_BEGIN_DECLS
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#define GST_TYPE_AVDTP_SRC \
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@ -54,9 +55,13 @@ struct _GstAvdtpSrc
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GstAvdtpConnection conn;
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GstCaps *dev_caps;
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GstAvrcpConnection *avrcp;
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GstPoll *poll;
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GstPollFD pfd;
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volatile gint unlocked;
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GstClockTime duration;
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};
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GType gst_avdtp_src_get_type (void);
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333
sys/bluez/gstavrcputil.c
Normal file
333
sys/bluez/gstavrcputil.c
Normal file
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@ -0,0 +1,333 @@
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/*
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* Copyright (C) 2015 Arun Raghavan <git@arunraghavan.net>
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*
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "gstavrcputil.h"
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#include "bluez.h"
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#include <gio/gio.h>
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#define BLUEZ_NAME "org.bluez"
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#define BLUEZ_PATH "/"
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#define BLUEZ_MEDIA_PLAYER_IFACE BLUEZ_NAME ".MediaPlayer1"
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struct _GstAvrcpConnection
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{
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GMainContext *context;
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GMainLoop *mainloop;
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GThread *thread;
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gchar *dev_path;
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GDBusObjectManager *manager;
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BluezMediaPlayer1 *player;
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GstAvrcpMetadataCb cb;
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gpointer user_data;
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GDestroyNotify user_data_free_cb;
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};
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static const char *
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tag_from_property (const char *name)
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{
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if (g_str_equal (name, "Title"))
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return GST_TAG_TITLE;
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else if (g_str_equal (name, "Artist"))
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return GST_TAG_ARTIST;
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else if (g_str_equal (name, "Album"))
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return GST_TAG_ALBUM;
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else if (g_str_equal (name, "Genre"))
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return GST_TAG_GENRE;
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else if (g_str_equal (name, "NumberOfTracks"))
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return GST_TAG_TRACK_COUNT;
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else if (g_str_equal (name, "TrackNumber"))
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return GST_TAG_TRACK_NUMBER;
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else if (g_str_equal (name, "Duration"))
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return GST_TAG_DURATION;
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else
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return NULL;
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}
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static GstTagList *
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tag_list_from_variant (GVariant * properties, gboolean track)
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{
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const gchar *name, *s;
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GVariant *value;
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GVariantIter *iter;
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GstTagList *taglist = NULL;
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iter = g_variant_iter_new (properties);
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if (track)
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taglist = gst_tag_list_new_empty ();
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/* The properties are in two levels -- at the top level we have the position
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* and the 'track'. The 'track' is another level of {sv} so we recurse one
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* level to pick up the actual track data. We get the taglist from the
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* recursive call, and ignore the position for now. */
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while (g_variant_iter_next (iter, "{&sv}", &name, &value)) {
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if (!track && g_str_equal (name, "Track")) {
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/* Top level property */
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taglist = tag_list_from_variant (value, TRUE);
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} else if (track) {
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/* If we get here, we are in the recursive call and we're dealing with
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* properties under "Track" */
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GType type;
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const gchar *tag;
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guint i;
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guint64 i64;
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tag = tag_from_property (name);
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if (!tag)
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goto next;
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type = gst_tag_get_type (tag);
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switch (type) {
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case G_TYPE_STRING:
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s = g_variant_get_string (value, NULL);
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if (s && s[0] != '\0')
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gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE, tag, s, NULL);
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break;
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case G_TYPE_UINT:
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i = g_variant_get_uint32 (value);
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if (i > 0)
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gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE, tag, i, NULL);
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break;
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case G_TYPE_UINT64:
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/* If we're here, the tag is 'duration' */
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i64 = g_variant_get_uint32 (value);
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if (i64 > 0 && i64 != (guint32) (-1)) {
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gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE, tag,
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i64 * GST_MSECOND, NULL);
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}
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break;
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default:
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GST_WARNING ("Unknown property: %s", name);
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break;
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}
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}
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next:
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g_variant_unref (value);
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}
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g_variant_iter_free (iter);
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if (taglist && gst_tag_list_is_empty (taglist)) {
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gst_tag_list_unref (taglist);
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taglist = NULL;
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}
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return taglist;
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}
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static void
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player_property_changed_cb (GDBusProxy * proxy, GVariant * properties,
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GStrv invalid, gpointer user_data)
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{
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GstAvrcpConnection *avrcp = (GstAvrcpConnection *) user_data;
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GstTagList *taglist;
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taglist = tag_list_from_variant (properties, FALSE);
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if (taglist)
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avrcp->cb (avrcp, taglist, avrcp->user_data);
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}
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static GstTagList *
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player_get_taglist (BluezMediaPlayer1 * player)
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{
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GstTagList *taglist = NULL;
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GVariant *track;
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track = bluez_media_player1_get_track (player);
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if (track)
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taglist = tag_list_from_variant (track, TRUE);
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return taglist;
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}
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static void
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gst_avrcp_connection_set_player (GstAvrcpConnection * avrcp,
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BluezMediaPlayer1 * player)
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{
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GstTagList *taglist;
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if (avrcp->player)
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g_object_unref (avrcp->player);
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if (!player) {
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avrcp->player = NULL;
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return;
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}
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avrcp->player = g_object_ref (player);
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g_signal_connect (player, "g-properties-changed",
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G_CALLBACK (player_property_changed_cb), avrcp);
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taglist = player_get_taglist (avrcp->player);
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if (taglist)
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avrcp->cb (avrcp, taglist, avrcp->user_data);
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}
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static BluezMediaPlayer1 *
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media_player_from_dbus_object (GDBusObject * object)
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{
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return (BluezMediaPlayer1 *) g_dbus_object_get_interface (object,
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BLUEZ_MEDIA_PLAYER_IFACE);
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}
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static GType
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manager_proxy_type_func (GDBusObjectManagerClient * manager,
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const gchar * object_path, const gchar * interface_name, gpointer user_data)
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{
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if (!interface_name)
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return G_TYPE_DBUS_OBJECT_PROXY;
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if (g_str_equal (interface_name, BLUEZ_MEDIA_PLAYER_IFACE))
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return BLUEZ_TYPE_MEDIA_PLAYER1_PROXY;
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return G_TYPE_DBUS_PROXY;
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}
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static void
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manager_object_added_cb (GDBusObjectManager * manager,
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GDBusObject * object, gpointer user_data)
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{
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GstAvrcpConnection *avrcp = (GstAvrcpConnection *) user_data;
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BluezMediaPlayer1 *player;
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if (!(player = media_player_from_dbus_object (object)))
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return;
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gst_avrcp_connection_set_player (avrcp, player);
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}
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static void
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manager_object_removed_cb (GDBusObjectManager * manager,
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GDBusObject * object, gpointer user_data)
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{
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GstAvrcpConnection *avrcp = (GstAvrcpConnection *) user_data;
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BluezMediaPlayer1 *player;
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if (!(player = media_player_from_dbus_object (object)))
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return;
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if (player == avrcp->player)
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gst_avrcp_connection_set_player (avrcp, NULL);
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}
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static void
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manager_ready_cb (GObject * object, GAsyncResult * res, gpointer user_data)
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{
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GstAvrcpConnection *avrcp = (GstAvrcpConnection *) user_data;
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GList *objects, *i;
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GError *err = NULL;
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avrcp->manager = g_dbus_object_manager_client_new_for_bus_finish (res, &err);
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if (!avrcp->manager) {
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GST_WARNING ("Could not create ObjectManager proxy: %s", err->message);
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g_error_free (err);
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return;
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}
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g_signal_connect (avrcp->manager, "object-added",
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G_CALLBACK (manager_object_added_cb), avrcp);
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g_signal_connect (avrcp->manager, "object-removed",
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G_CALLBACK (manager_object_removed_cb), avrcp);
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objects = g_dbus_object_manager_get_objects (avrcp->manager);
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for (i = objects; i; i = i->next) {
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BluezMediaPlayer1 *player =
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media_player_from_dbus_object (G_DBUS_OBJECT (i->data));
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if (player && g_str_equal (avrcp->dev_path,
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bluez_media_player1_get_device (player))) {
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gst_avrcp_connection_set_player (avrcp, player);
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break;
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}
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}
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g_list_free_full (objects, g_object_unref);
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}
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GstAvrcpConnection *
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gst_avrcp_connection_new (const gchar * dev_path, GstAvrcpMetadataCb cb,
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gpointer user_data, GDestroyNotify user_data_free_cb)
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{
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GstAvrcpConnection *avrcp;
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avrcp = g_new0 (GstAvrcpConnection, 1);
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avrcp->cb = cb;
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avrcp->user_data = user_data;
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avrcp->user_data_free_cb = user_data_free_cb;
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avrcp->context = g_main_context_new ();
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avrcp->mainloop = g_main_loop_new (avrcp->context, FALSE);
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|
||||
avrcp->dev_path = g_strdup (dev_path);
|
||||
|
||||
g_main_context_push_thread_default (avrcp->context);
|
||||
|
||||
g_dbus_object_manager_client_new_for_bus (G_BUS_TYPE_SYSTEM,
|
||||
G_DBUS_OBJECT_MANAGER_CLIENT_FLAGS_NONE, BLUEZ_NAME, BLUEZ_PATH,
|
||||
manager_proxy_type_func, NULL, NULL, NULL, manager_ready_cb, avrcp);
|
||||
|
||||
g_main_context_pop_thread_default (avrcp->context);
|
||||
|
||||
avrcp->thread = g_thread_new ("gstavrcp", (GThreadFunc) g_main_loop_run,
|
||||
avrcp->mainloop);
|
||||
|
||||
return avrcp;
|
||||
}
|
||||
|
||||
void
|
||||
gst_avrcp_connection_free (GstAvrcpConnection * avrcp)
|
||||
{
|
||||
g_main_loop_quit (avrcp->mainloop);
|
||||
g_main_loop_unref (avrcp->mainloop);
|
||||
|
||||
g_main_context_unref (avrcp->context);
|
||||
|
||||
g_thread_join (avrcp->thread);
|
||||
|
||||
if (avrcp->player)
|
||||
g_object_unref (avrcp->player);
|
||||
|
||||
if (avrcp->manager)
|
||||
g_object_unref (avrcp->manager);
|
||||
|
||||
if (avrcp->user_data_free_cb)
|
||||
avrcp->user_data_free_cb (avrcp->user_data);
|
||||
|
||||
g_free (avrcp->dev_path);
|
||||
g_free (avrcp);
|
||||
}
|
36
sys/bluez/gstavrcputil.h
Normal file
36
sys/bluez/gstavrcputil.h
Normal file
|
@ -0,0 +1,36 @@
|
|||
/*
|
||||
* Copyright (C) 2015 Arun Raghavan <git@arunraghavan.net>
|
||||
*
|
||||
*
|
||||
* This library 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.
|
||||
*
|
||||
* This library 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef __GST_AVRCP_UTIL_H
|
||||
#define __GST_AVRCP_UTIL_H
|
||||
|
||||
#include <gst/gst.h>
|
||||
|
||||
typedef struct _GstAvrcpConnection GstAvrcpConnection;
|
||||
|
||||
typedef void (*GstAvrcpMetadataCb) (GstAvrcpConnection *, GstTagList *,
|
||||
gpointer);
|
||||
|
||||
GstAvrcpConnection *
|
||||
gst_avrcp_connection_new (const gchar * dev_path, GstAvrcpMetadataCb cb,
|
||||
gpointer user_data, GDestroyNotify user_data_free_cb);
|
||||
|
||||
void gst_avrcp_connection_free (GstAvrcpConnection * avrcp);
|
||||
|
||||
#endif /* __GST_AVRCP_UTIL_H */
|
|
@ -26,4 +26,28 @@
|
|||
<property name="Delay" type="q" access="read"></property>
|
||||
<property name="Volume" type="q" access="readwrite"></property>
|
||||
</interface>
|
||||
|
||||
<interface name="org.bluez.MediaPlayer1">
|
||||
<method name="Play"/>
|
||||
<method name="Pause"/>
|
||||
<method name="Stop"/>
|
||||
<method name="Next"/>
|
||||
<method name="Previous"/>
|
||||
<method name="FastForward"/>
|
||||
<method name="Rewind"/>
|
||||
<property name="Name" type="s" access="read"/>
|
||||
<property name="Type" type="s" access="read"/>
|
||||
<property name="Subtype" type="s" access="read"/>
|
||||
<property name="Position" type="u" access="read"/>
|
||||
<property name="Status" type="s" access="read"/>
|
||||
<property name="Equalizer" type="s" access="readwrite"/>
|
||||
<property name="Repeat" type="s" access="readwrite"/>
|
||||
<property name="Shuffle" type="s" access="readwrite"/>
|
||||
<property name="Scan" type="s" access="readwrite"/>
|
||||
<property name="Track" type="a{sv}" access="read"/>
|
||||
<property name="Device" type="o" access="read"/>
|
||||
<property name="Browsable" type="b" access="read"/>
|
||||
<property name="Searchable" type="b" access="read"/>
|
||||
<property name="Playlist" type="o" access="read"/>
|
||||
</interface>
|
||||
</node>
|
||||
|
|
Loading…
Reference in a new issue