bluez: Add support for media transport in gstreamer plugin

This commit is contained in:
Luiz Augusto von Dentz 2010-05-06 17:14:14 +03:00 committed by Tim-Philipp Müller
parent 651e1be7ef
commit c3afd98226
5 changed files with 751 additions and 10 deletions

116
sys/bluez/a2dp-codecs.h Normal file
View file

@ -0,0 +1,116 @@
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2006-2010 Nokia Corporation
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
* 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 A2DP_CODEC_SBC 0x00
#define A2DP_CODEC_MPEG12 0x01
#define A2DP_CODEC_MPEG24 0x02
#define A2DP_CODEC_ATRAC 0x03
#define SBC_SAMPLING_FREQ_16000 (1 << 3)
#define SBC_SAMPLING_FREQ_32000 (1 << 2)
#define SBC_SAMPLING_FREQ_44100 (1 << 1)
#define SBC_SAMPLING_FREQ_48000 1
#define SBC_CHANNEL_MODE_MONO (1 << 3)
#define SBC_CHANNEL_MODE_DUAL_CHANNEL (1 << 2)
#define SBC_CHANNEL_MODE_STEREO (1 << 1)
#define SBC_CHANNEL_MODE_JOINT_STEREO 1
#define SBC_BLOCK_LENGTH_4 (1 << 3)
#define SBC_BLOCK_LENGTH_8 (1 << 2)
#define SBC_BLOCK_LENGTH_12 (1 << 1)
#define SBC_BLOCK_LENGTH_16 1
#define SBC_SUBBANDS_4 (1 << 1)
#define SBC_SUBBANDS_8 1
#define SBC_ALLOCATION_SNR (1 << 1)
#define SBC_ALLOCATION_LOUDNESS 1
#define MPEG_CHANNEL_MODE_MONO (1 << 3)
#define MPEG_CHANNEL_MODE_DUAL_CHANNEL (1 << 2)
#define MPEG_CHANNEL_MODE_STEREO (1 << 1)
#define MPEG_CHANNEL_MODE_JOINT_STEREO 1
#define MPEG_LAYER_MP1 (1 << 2)
#define MPEG_LAYER_MP2 (1 << 1)
#define MPEG_LAYER_MP3 1
#define MPEG_SAMPLING_FREQ_16000 (1 << 5)
#define MPEG_SAMPLING_FREQ_22050 (1 << 4)
#define MPEG_SAMPLING_FREQ_24000 (1 << 3)
#define MPEG_SAMPLING_FREQ_32000 (1 << 2)
#define MPEG_SAMPLING_FREQ_44100 (1 << 1)
#define MPEG_SAMPLING_FREQ_48000 1
#define MAX_BITPOOL 64
#define MIN_BITPOOL 2
#if __BYTE_ORDER == __LITTLE_ENDIAN
typedef struct {
uint8_t channel_mode:4;
uint8_t frequency:4;
uint8_t allocation_method:2;
uint8_t subbands:2;
uint8_t block_length:4;
uint8_t min_bitpool;
uint8_t max_bitpool;
} __attribute__ ((packed)) a2dp_sbc_t;
typedef struct {
uint8_t channel_mode:4;
uint8_t crc:1;
uint8_t layer:3;
uint8_t frequency:6;
uint8_t mpf:1;
uint8_t rfa:1;
uint16_t bitrate;
} __attribute__ ((packed)) a2dp_mpeg_t;
#elif __BYTE_ORDER == __BIG_ENDIAN
typedef struct {
uint8_t frequency:4;
uint8_t channel_mode:4;
uint8_t block_length:4;
uint8_t subbands:2;
uint8_t allocation_method:2;
uint8_t min_bitpool;
uint8_t max_bitpool;
} __attribute__ ((packed)) a2dp_sbc_t;
typedef struct {
uint8_t layer:3;
uint8_t crc:1;
uint8_t channel_mode:4;
uint8_t rfa:1;
uint8_t mpf:1;
uint8_t frequency:6;
uint16_t bitrate;
} __attribute__ ((packed)) a2dp_mpeg_t;
#else
#error "Unknown byte order"
#endif

View file

@ -45,7 +45,8 @@ enum
{
PROP_0,
PROP_DEVICE,
PROP_AUTOCONNECT
PROP_AUTOCONNECT,
PROP_TRANSPORT
};
GST_BOILERPLATE (GstA2dpSink, gst_a2dp_sink, GstBin, GST_TYPE_BIN);
@ -171,6 +172,15 @@ gst_a2dp_sink_set_property (GObject * object, guint prop_id,
self->device = g_value_dup_string (value);
break;
case PROP_TRANSPORT:
if (self->sink != NULL)
gst_avdtp_sink_set_transport (self->sink, g_value_get_string (value));
if (self->transport != NULL)
g_free (self->transport);
self->transport = g_value_dup_string (value);
break;
case PROP_AUTOCONNECT:
self->autoconnect = g_value_get_boolean (value);
@ -190,7 +200,7 @@ gst_a2dp_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstA2dpSink *self = GST_A2DP_SINK (object);
gchar *device;
gchar *device, *transport;
switch (prop_id) {
case PROP_DEVICE:
@ -207,6 +217,13 @@ gst_a2dp_sink_get_property (GObject * object, guint prop_id,
g_value_set_boolean (value, self->autoconnect);
break;
case PROP_TRANSPORT:
if (self->sink != NULL) {
transport = gst_avdtp_sink_get_transport (self->sink);
if (transport != NULL)
g_value_take_string (value, transport);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -281,6 +298,9 @@ gst_a2dp_sink_change_state (GstElement * element, GstStateChange transition)
if (self->device != NULL)
gst_avdtp_sink_set_device (self->sink, self->device);
if (self->transport != NULL)
gst_avdtp_sink_set_transport (self->sink, self->transport);
g_object_set (G_OBJECT (self->sink), "auto-connect",
self->autoconnect, NULL);
@ -352,6 +372,10 @@ gst_a2dp_sink_class_init (GstA2dpSinkClass * klass)
"Automatically attempt to connect to device",
DEFAULT_AUTOCONNECT, G_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_TRANSPORT,
g_param_spec_string ("transport", "Transport",
"Use configured transport", NULL, G_PARAM_READWRITE));
GST_DEBUG_CATEGORY_INIT (gst_a2dp_sink_debug, "a2dpsink", 0,
"A2DP sink element");
}
@ -422,6 +446,7 @@ gst_a2dp_sink_init_avdtp_sink (GstA2dpSink * self)
self->sink = GST_AVDTP_SINK (sink);
self->sink_is_in_bin = TRUE;
g_object_set (G_OBJECT (self->sink), "device", self->device, NULL);
g_object_set (G_OBJECT (self->sink), "transport", self->transport, NULL);
gst_element_set_state (sink, GST_STATE_PAUSED);
@ -663,6 +688,7 @@ gst_a2dp_sink_init (GstA2dpSink * self, GstA2dpSinkClass * klass)
self->fakesink = NULL;
self->rtp = NULL;
self->device = NULL;
self->transport = NULL;
self->autoconnect = DEFAULT_AUTOCONNECT;
self->capsfilter = NULL;
self->newseg_event = NULL;

View file

@ -53,6 +53,7 @@ struct _GstA2dpSink {
GstElement *fakesink;
gchar *device;
gchar *transport;
gboolean autoconnect;
gboolean sink_is_in_bin;

View file

@ -37,8 +37,11 @@
#include <gst/rtp/gstrtpbuffer.h>
#include <dbus/dbus.h>
#include "ipc.h"
#include "rtp.h"
#include "a2dp-codecs.h"
#include "gstpragma.h"
#include "gstavdtpsink.h"
@ -61,12 +64,21 @@ GST_DEBUG_CATEGORY_STATIC (avdtp_sink_debug);
g_mutex_unlock(s->sink_lock); \
} G_STMT_END
#ifndef DBUS_TYPE_UNIX_FD
#define DBUS_TYPE_UNIX_FD -1
#endif
struct bluetooth_data
{
struct bt_get_capabilities_rsp *caps; /* Bluetooth device caps */
guint link_mtu;
DBusConnection *conn;
guint8 codec; /* Bluetooth transport configuration */
gchar *uuid;
guint8 *config;
gint config_size;
gchar buffer[BUFFER_SIZE]; /* Codec transfer buffer */
};
@ -77,7 +89,8 @@ enum
{
PROP_0,
PROP_DEVICE,
PROP_AUTOCONNECT
PROP_AUTOCONNECT,
PROP_TRANSPORT
};
GST_BOILERPLATE (GstAvdtpSink, gst_avdtp_sink, GstBaseSink, GST_TYPE_BASE_SINK);
@ -125,6 +138,23 @@ gst_avdtp_sink_base_init (gpointer g_class)
gst_element_class_set_details (element_class, &avdtp_sink_details);
}
static void
gst_avdtp_sink_transport_release (GstAvdtpSink * self)
{
DBusMessage *msg;
const char *access_type = "w";
msg = dbus_message_new_method_call ("org.bluez", self->transport,
"org.bluez.MediaTransport", "Release");
dbus_message_append_args (msg, DBUS_TYPE_STRING, &access_type,
DBUS_TYPE_INVALID);
dbus_connection_send (self->data->conn, msg, NULL);
dbus_message_unref (msg);
}
static gboolean
gst_avdtp_sink_stop (GstBaseSink * basesink)
{
@ -150,6 +180,10 @@ gst_avdtp_sink_stop (GstBaseSink * basesink)
}
if (self->data) {
if (self->transport)
gst_avdtp_sink_transport_release (self);
if (self->data->conn)
dbus_connection_unref (self->data->conn);
g_free (self->data);
self->data = NULL;
}
@ -178,6 +212,9 @@ gst_avdtp_sink_finalize (GObject * object)
if (self->device)
g_free (self->device);
if (self->transport)
g_free (self->transport);
g_mutex_free (self->sink_lock);
G_OBJECT_CLASS (parent_class)->finalize (object);
@ -199,6 +236,13 @@ gst_avdtp_sink_set_property (GObject * object, guint prop_id,
case PROP_AUTOCONNECT:
sink->autoconnect = g_value_get_boolean (value);
break;
case PROP_TRANSPORT:
if (sink->transport)
g_free (sink->transport);
sink->transport = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -219,6 +263,11 @@ gst_avdtp_sink_get_property (GObject * object, guint prop_id,
case PROP_AUTOCONNECT:
g_value_set_boolean (value, sink->autoconnect);
break;
case PROP_TRANSPORT:
g_value_set_string (value, sink->transport);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -370,6 +419,10 @@ gst_avdtp_sink_conf_recv_stream_fd (GstAvdtpSink * self)
GIOFlags flags;
gsize read;
/* Proceed if stream was already acquired */
if (self->stream != NULL)
goto proceed;
ret = gst_avdtp_sink_bluetooth_recvmsg_fd (self);
if (ret < 0)
return FALSE;
@ -380,6 +433,7 @@ gst_avdtp_sink_conf_recv_stream_fd (GstAvdtpSink * self)
return FALSE;
}
proceed:
/* set stream socket to nonblock */
GST_LOG_OBJECT (self, "setting stream socket to nonblock");
flags = g_io_channel_get_flags (self->stream);
@ -723,6 +777,324 @@ gst_avdtp_sink_parse_mpeg_caps (GstAvdtpSink * self, mpeg_capabilities_t * mpeg)
return structure;
}
static GstStructure *
gst_avdtp_sink_parse_sbc_raw (GstAvdtpSink * self)
{
a2dp_sbc_t *sbc = (a2dp_sbc_t *) self->data->config;
GstStructure *structure;
GValue *value;
GValue *list;
gboolean mono, stereo;
structure = gst_structure_empty_new ("audio/x-sbc");
value = g_value_init (g_new0 (GValue, 1), G_TYPE_STRING);
/* mode */
list = g_value_init (g_new0 (GValue, 1), GST_TYPE_LIST);
if (sbc->channel_mode & BT_A2DP_CHANNEL_MODE_MONO) {
g_value_set_static_string (value, "mono");
gst_value_list_prepend_value (list, value);
}
if (sbc->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO) {
g_value_set_static_string (value, "stereo");
gst_value_list_prepend_value (list, value);
}
if (sbc->channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL) {
g_value_set_static_string (value, "dual");
gst_value_list_prepend_value (list, value);
}
if (sbc->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO) {
g_value_set_static_string (value, "joint");
gst_value_list_prepend_value (list, value);
}
g_value_unset (value);
if (list) {
gst_structure_set_value (structure, "mode", list);
g_free (list);
list = NULL;
}
/* subbands */
list = g_value_init (g_new0 (GValue, 1), GST_TYPE_LIST);
value = g_value_init (value, G_TYPE_INT);
if (sbc->subbands & BT_A2DP_SUBBANDS_4) {
g_value_set_int (value, 4);
gst_value_list_prepend_value (list, value);
}
if (sbc->subbands & BT_A2DP_SUBBANDS_8) {
g_value_set_int (value, 8);
gst_value_list_prepend_value (list, value);
}
g_value_unset (value);
if (list) {
gst_structure_set_value (structure, "subbands", list);
g_free (list);
list = NULL;
}
/* blocks */
value = g_value_init (value, G_TYPE_INT);
list = g_value_init (g_new0 (GValue, 1), GST_TYPE_LIST);
if (sbc->block_length & BT_A2DP_BLOCK_LENGTH_16) {
g_value_set_int (value, 16);
gst_value_list_prepend_value (list, value);
}
if (sbc->block_length & BT_A2DP_BLOCK_LENGTH_12) {
g_value_set_int (value, 12);
gst_value_list_prepend_value (list, value);
}
if (sbc->block_length & BT_A2DP_BLOCK_LENGTH_8) {
g_value_set_int (value, 8);
gst_value_list_prepend_value (list, value);
}
if (sbc->block_length & BT_A2DP_BLOCK_LENGTH_4) {
g_value_set_int (value, 4);
gst_value_list_prepend_value (list, value);
}
g_value_unset (value);
if (list) {
gst_structure_set_value (structure, "blocks", list);
g_free (list);
list = NULL;
}
/* allocation */
g_value_init (value, G_TYPE_STRING);
list = g_value_init (g_new0 (GValue, 1), GST_TYPE_LIST);
if (sbc->allocation_method & BT_A2DP_ALLOCATION_LOUDNESS) {
g_value_set_static_string (value, "loudness");
gst_value_list_prepend_value (list, value);
}
if (sbc->allocation_method & BT_A2DP_ALLOCATION_SNR) {
g_value_set_static_string (value, "snr");
gst_value_list_prepend_value (list, value);
}
g_value_unset (value);
if (list) {
gst_structure_set_value (structure, "allocation", list);
g_free (list);
list = NULL;
}
/* rate */
g_value_init (value, G_TYPE_INT);
list = g_value_init (g_new0 (GValue, 1), GST_TYPE_LIST);
if (sbc->frequency & BT_SBC_SAMPLING_FREQ_48000) {
g_value_set_int (value, 48000);
gst_value_list_prepend_value (list, value);
}
if (sbc->frequency & BT_SBC_SAMPLING_FREQ_44100) {
g_value_set_int (value, 44100);
gst_value_list_prepend_value (list, value);
}
if (sbc->frequency & BT_SBC_SAMPLING_FREQ_32000) {
g_value_set_int (value, 32000);
gst_value_list_prepend_value (list, value);
}
if (sbc->frequency & BT_SBC_SAMPLING_FREQ_16000) {
g_value_set_int (value, 16000);
gst_value_list_prepend_value (list, value);
}
g_value_unset (value);
if (list) {
gst_structure_set_value (structure, "rate", list);
g_free (list);
list = NULL;
}
/* bitpool */
value = g_value_init (value, GST_TYPE_INT_RANGE);
gst_value_set_int_range (value,
MIN (sbc->min_bitpool, TEMPLATE_MAX_BITPOOL),
MIN (sbc->max_bitpool, TEMPLATE_MAX_BITPOOL));
gst_structure_set_value (structure, "bitpool", value);
g_value_unset (value);
/* channels */
mono = FALSE;
stereo = FALSE;
if (sbc->channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
mono = TRUE;
if ((sbc->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO) ||
(sbc->channel_mode &
BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL) ||
(sbc->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO))
stereo = TRUE;
if (mono && stereo) {
g_value_init (value, GST_TYPE_INT_RANGE);
gst_value_set_int_range (value, 1, 2);
} else {
g_value_init (value, G_TYPE_INT);
if (mono)
g_value_set_int (value, 1);
else if (stereo)
g_value_set_int (value, 2);
else {
GST_ERROR_OBJECT (self, "Unexpected number of channels");
g_value_set_int (value, 0);
}
}
gst_structure_set_value (structure, "channels", value);
g_free (value);
return structure;
}
static GstStructure *
gst_avdtp_sink_parse_mpeg_raw (GstAvdtpSink * self)
{
a2dp_mpeg_t *mpeg = (a2dp_mpeg_t *) self->data->config;
GstStructure *structure;
GValue *value;
GValue *list;
gboolean valid_layer = FALSE;
gboolean mono, stereo;
GST_LOG_OBJECT (self, "parsing mpeg caps");
structure = gst_structure_empty_new ("audio/mpeg");
value = g_new0 (GValue, 1);
g_value_init (value, G_TYPE_INT);
list = g_value_init (g_new0 (GValue, 1), GST_TYPE_LIST);
g_value_set_int (value, 1);
gst_value_list_prepend_value (list, value);
g_value_set_int (value, 2);
gst_value_list_prepend_value (list, value);
gst_structure_set_value (structure, "mpegversion", list);
g_free (list);
/* layer */
GST_LOG_OBJECT (self, "setting mpeg layer");
list = g_value_init (g_new0 (GValue, 1), GST_TYPE_LIST);
if (mpeg->layer & BT_MPEG_LAYER_1) {
g_value_set_int (value, 1);
gst_value_list_prepend_value (list, value);
valid_layer = TRUE;
}
if (mpeg->layer & BT_MPEG_LAYER_2) {
g_value_set_int (value, 2);
gst_value_list_prepend_value (list, value);
valid_layer = TRUE;
}
if (mpeg->layer & BT_MPEG_LAYER_3) {
g_value_set_int (value, 3);
gst_value_list_prepend_value (list, value);
valid_layer = TRUE;
}
if (list) {
gst_structure_set_value (structure, "layer", list);
g_free (list);
list = NULL;
}
if (!valid_layer) {
gst_structure_free (structure);
g_free (value);
return NULL;
}
/* rate */
GST_LOG_OBJECT (self, "setting mpeg rate");
list = g_value_init (g_new0 (GValue, 1), GST_TYPE_LIST);
if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_48000) {
g_value_set_int (value, 48000);
gst_value_list_prepend_value (list, value);
}
if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_44100) {
g_value_set_int (value, 44100);
gst_value_list_prepend_value (list, value);
}
if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_32000) {
g_value_set_int (value, 32000);
gst_value_list_prepend_value (list, value);
}
if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_24000) {
g_value_set_int (value, 24000);
gst_value_list_prepend_value (list, value);
}
if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_22050) {
g_value_set_int (value, 22050);
gst_value_list_prepend_value (list, value);
}
if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_16000) {
g_value_set_int (value, 16000);
gst_value_list_prepend_value (list, value);
}
g_value_unset (value);
if (list) {
gst_structure_set_value (structure, "rate", list);
g_free (list);
list = NULL;
}
/* channels */
GST_LOG_OBJECT (self, "setting mpeg channels");
mono = FALSE;
stereo = FALSE;
if (mpeg->channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
mono = TRUE;
if ((mpeg->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO) ||
(mpeg->channel_mode &
BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL) ||
(mpeg->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO))
stereo = TRUE;
if (mono && stereo) {
g_value_init (value, GST_TYPE_INT_RANGE);
gst_value_set_int_range (value, 1, 2);
} else {
g_value_init (value, G_TYPE_INT);
if (mono)
g_value_set_int (value, 1);
else if (stereo)
g_value_set_int (value, 2);
else {
GST_ERROR_OBJECT (self, "Unexpected number of channels");
g_value_set_int (value, 0);
}
}
gst_structure_set_value (structure, "channels", value);
g_free (value);
return structure;
}
static gboolean
gst_avdtp_sink_update_config (GstAvdtpSink * self)
{
GstStructure *structure;
gchar *tmp;
switch (self->data->codec) {
case A2DP_CODEC_SBC:
structure = gst_avdtp_sink_parse_sbc_raw (self);
break;
case A2DP_CODEC_MPEG12:
structure = gst_avdtp_sink_parse_mpeg_raw (self);
break;
default:
GST_ERROR_OBJECT (self, "Unsupported configuration");
return FALSE;
}
if (structure == NULL)
return FALSE;
if (self->dev_caps != NULL)
gst_caps_unref (self->dev_caps);
self->dev_caps = gst_caps_new_full (structure, NULL);
tmp = gst_caps_to_string (self->dev_caps);
GST_DEBUG_OBJECT (self, "Transport configuration: %s", tmp);
g_free (tmp);
return TRUE;
}
static gboolean
gst_avdtp_sink_update_caps (GstAvdtpSink * self)
{
@ -734,6 +1106,9 @@ gst_avdtp_sink_update_caps (GstAvdtpSink * self)
GST_LOG_OBJECT (self, "updating device caps");
if (self->data->config_size != 0 && self->data->config != NULL)
return gst_avdtp_sink_update_config (self);
sbc = (void *) gst_avdtp_find_caps (self, BT_A2DP_SBC_SINK);
mpeg = (void *) gst_avdtp_find_caps (self, BT_A2DP_MPEG12_SINK);
@ -862,6 +1237,192 @@ gst_avdtp_sink_event (GstBaseSink * basesink, GstEvent * event)
return TRUE;
}
static gboolean
gst_avdtp_sink_transport_parse_property (GstAvdtpSink * self,
DBusMessageIter * i)
{
const char *key;
DBusMessageIter variant_i;
if (dbus_message_iter_get_arg_type (i) != DBUS_TYPE_STRING) {
GST_ERROR_OBJECT (self, "Property name not a string.");
return FALSE;
}
dbus_message_iter_get_basic (i, &key);
if (!dbus_message_iter_next (i)) {
GST_ERROR_OBJECT (self, "Property value missing");
return FALSE;
}
if (dbus_message_iter_get_arg_type (i) != DBUS_TYPE_VARIANT) {
GST_ERROR_OBJECT (self, "Property value not a variant.");
return FALSE;
}
dbus_message_iter_recurse (i, &variant_i);
switch (dbus_message_iter_get_arg_type (&variant_i)) {
case DBUS_TYPE_BYTE:{
uint8_t value;
dbus_message_iter_get_basic (&variant_i, &value);
if (g_str_equal (key, "Codec") == TRUE)
self->data->codec = value;
break;
}
case DBUS_TYPE_UINT16:{
uint16_t value;
dbus_message_iter_get_basic (&variant_i, &value);
if (g_str_equal (key, "OMTU") == TRUE)
self->data->link_mtu = value;
break;
}
case DBUS_TYPE_STRING:{
const char *value;
dbus_message_iter_get_basic (&variant_i, &value);
if (g_str_equal (key, "UUID") == TRUE) {
g_free (self->data->uuid);
self->data->uuid = g_strdup (value);
}
break;
}
case DBUS_TYPE_ARRAY:{
DBusMessageIter array_i;
char *value;
int size;
dbus_message_iter_recurse (&variant_i, &array_i);
dbus_message_iter_get_fixed_array (&array_i, &value, &size);
if (g_str_equal (key, "Configuration")) {
g_free (self->data->config);
self->data->config = g_new0 (guint8, size);
self->data->config_size = size;
memcpy (self->data->config, value, size);
}
break;
}
}
return TRUE;
}
static gboolean
gst_avdtp_sink_transport_acquire (GstAvdtpSink * self)
{
DBusMessage *msg, *reply;
DBusError err;
const char *access_type = "w";
int fd;
dbus_error_init (&err);
if (self->data->conn == NULL)
self->data->conn = dbus_bus_get (DBUS_BUS_SYSTEM, &err);
msg = dbus_message_new_method_call ("org.bluez", self->transport,
"org.bluez.MediaTransport", "Acquire");
dbus_message_append_args (msg, DBUS_TYPE_STRING, &access_type,
DBUS_TYPE_INVALID);
reply = dbus_connection_send_with_reply_and_block (self->data->conn,
msg, -1, &err);
if (dbus_error_is_set (&err))
goto fail;
if (dbus_message_get_args (reply, &err, DBUS_TYPE_UNIX_FD, &fd,
DBUS_TYPE_INVALID) == FALSE)
goto fail;
dbus_message_unref (reply);
self->stream = g_io_channel_unix_new (fd);
g_io_channel_set_close_on_unref (self->stream, TRUE);
GST_DEBUG_OBJECT (self, "stream_fd=%d", fd);
return TRUE;
fail:
GST_ERROR_OBJECT (self, "Failed to acquire transport stream: %s",
err.message);
dbus_error_free (&err);
if (reply)
dbus_message_unref (msg);
return FALSE;
}
static gboolean
gst_avdtp_sink_transport_get_properties (GstAvdtpSink * self)
{
DBusMessage *msg, *reply;
DBusMessageIter arg_i, ele_i;
DBusError err;
dbus_error_init (&err);
/* Transport need to be acquire first to make sure the MTUs are
available */
if (gst_avdtp_sink_transport_acquire (self) == FALSE)
return FALSE;
msg = dbus_message_new_method_call ("org.bluez", self->transport,
"org.bluez.MediaTransport", "GetProperties");
reply = dbus_connection_send_with_reply_and_block (self->data->conn,
msg, -1, &err);
if (dbus_error_is_set (&err) || reply == NULL) {
GST_ERROR_OBJECT (self, "Failed to get transport properties: %s",
err.message);
goto fail;
}
if (!dbus_message_iter_init (reply, &arg_i)) {
GST_ERROR_OBJECT (self, "GetProperties reply has no arguments.");
goto fail;
}
if (dbus_message_iter_get_arg_type (&arg_i) != DBUS_TYPE_ARRAY) {
GST_ERROR_OBJECT (self, "GetProperties argument is not an array.");
goto fail;
}
dbus_message_iter_recurse (&arg_i, &ele_i);
while (dbus_message_iter_get_arg_type (&ele_i) != DBUS_TYPE_INVALID) {
if (dbus_message_iter_get_arg_type (&ele_i) == DBUS_TYPE_DICT_ENTRY) {
DBusMessageIter dict_i;
dbus_message_iter_recurse (&ele_i, &dict_i);
gst_avdtp_sink_transport_parse_property (self, &dict_i);
}
if (!dbus_message_iter_next (&ele_i))
break;
}
return gst_avdtp_sink_update_caps (self);
fail:
dbus_message_unref (msg);
dbus_message_unref (reply);
return FALSE;
}
static gboolean
gst_avdtp_sink_start (GstBaseSink * basesink)
{
@ -871,6 +1432,16 @@ gst_avdtp_sink_start (GstBaseSink * basesink)
GST_INFO_OBJECT (self, "start");
self->data = g_new0 (struct bluetooth_data, 1);
self->stream = NULL;
self->stream_caps = NULL;
self->mp3_using_crc = -1;
self->channel_mode = -1;
if (self->transport != NULL)
return gst_avdtp_sink_transport_get_properties (self);
self->watch_id = 0;
sk = bt_audio_service_open ();
@ -885,13 +1456,6 @@ gst_avdtp_sink_start (GstBaseSink * basesink)
self->watch_id = g_io_add_watch (self->server, G_IO_HUP | G_IO_ERR |
G_IO_NVAL, server_callback, self);
self->data = g_new0 (struct bluetooth_data, 1);
self->stream = NULL;
self->stream_caps = NULL;
self->mp3_using_crc = -1;
self->channel_mode = -1;
if (!gst_avdtp_sink_get_capabilities (self)) {
GST_ERROR_OBJECT (self, "failed to get capabilities " "from device");
goto failed;
@ -913,6 +1477,9 @@ gst_avdtp_sink_stream_start (GstAvdtpSink * self)
struct bt_new_stream_ind *ind = (void *) buf;
GIOError io_error;
if (self->transport != NULL)
return gst_avdtp_sink_conf_recv_stream_fd (self);
memset (req, 0, sizeof (buf));
req->h.type = BT_REQUEST;
req->h.name = BT_START_STREAM;
@ -1039,6 +1606,10 @@ gst_avdtp_sink_configure (GstAvdtpSink * self, GstCaps * caps)
GST_DEBUG_OBJECT (self, "configuring device with caps: %s", temp);
g_free (temp);
/* Transport already configured */
if (self->transport != NULL)
return TRUE;
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_name (structure, "audio/x-sbc"))
@ -1210,6 +1781,10 @@ gst_avdtp_sink_class_init (GstAvdtpSinkClass * klass)
"Automatically attempt to connect "
"to device", DEFAULT_AUTOCONNECT, G_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_TRANSPORT,
g_param_spec_string ("transport",
"Transport", "Use configured transport", NULL, G_PARAM_READWRITE));
GST_DEBUG_CATEGORY_INIT (avdtp_sink_debug, "avdtpsink", 0,
"A2DP headset sink element");
}
@ -1218,6 +1793,7 @@ static void
gst_avdtp_sink_init (GstAvdtpSink * self, GstAvdtpSinkClass * klass)
{
self->device = NULL;
self->transport = NULL;
self->data = NULL;
self->stream = NULL;
@ -1371,12 +1947,28 @@ gst_avdtp_sink_set_device (GstAvdtpSink * self, const gchar * dev)
self->device = g_strdup (dev);
}
void
gst_avdtp_sink_set_transport (GstAvdtpSink * self, const gchar * trans)
{
if (self->transport != NULL)
g_free (self->transport);
GST_LOG_OBJECT (self, "Setting transport: %s", trans);
self->transport = g_strdup (trans);
}
gchar *
gst_avdtp_sink_get_device (GstAvdtpSink * self)
{
return g_strdup (self->device);
}
gchar *
gst_avdtp_sink_get_transport (GstAvdtpSink * self)
{
return g_strdup (self->transport);
}
void
gst_avdtp_sink_set_crc (GstAvdtpSink * self, gboolean crc)
{

View file

@ -51,6 +51,7 @@ struct _GstAvdtpSink {
GstBaseSink sink;
gchar *device;
gchar *transport;
GIOChannel *stream;
struct bluetooth_data *data;
@ -86,8 +87,13 @@ guint gst_avdtp_sink_get_link_mtu(GstAvdtpSink *sink);
void gst_avdtp_sink_set_device(GstAvdtpSink *sink,
const gchar* device);
void gst_avdtp_sink_set_transport(GstAvdtpSink *sink,
const gchar *transport);
gchar *gst_avdtp_sink_get_device(GstAvdtpSink *sink);
gchar *gst_avdtp_sink_get_transport(GstAvdtpSink *sink);
gboolean gst_avdtp_sink_plugin_init(GstPlugin *plugin);
void gst_avdtp_sink_set_crc(GstAvdtpSink *self, gboolean crc);