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bluez: Integrate new ipc API implementation.

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This commit is contained in:
Luiz Augusto von Dentz 2007-11-21 20:24:11 +00:00 committed by Tim-Philipp Müller
parent 22d80ddff0
commit 3c8b91e0cb
2 changed files with 425 additions and 323 deletions
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738
sys/bluez/gsta2dpsink.c
View file

@ -41,15 +41,6 @@
#include "gsta2dpsink.h"
enum
{
NOT_CONFIGURED,
CONFIGURING_INIT,
CONFIGURING_SENT_CONF,
CONFIGURING_RCVD_DEV_CONF,
CONFIGURED
};
GST_DEBUG_CATEGORY_STATIC (a2dp_sink_debug);
#define GST_CAT_DEFAULT a2dp_sink_debug
@ -63,25 +54,11 @@ GST_DEBUG_CATEGORY_STATIC (a2dp_sink_debug);
g_mutex_unlock (s->sink_lock); \
} G_STMT_END
#define GST_A2DP_SINK_WAIT_CON_END(s) G_STMT_START { \
s->waiting_con_conf = TRUE; \
g_cond_wait (s->con_conf_end, s->sink_lock); \
s->waiting_con_conf = FALSE; \
} G_STMT_END
#define GST_A2DP_SINK_CONFIGURATION_FAIL(s) G_STMT_START { \
s->con_state = NOT_CONFIGURED; \
g_cond_signal (s->con_conf_end); \
} G_STMT_END
#define GST_A2DP_SINK_CONFIGURATION_SUCCESS(s) G_STMT_START { \
s->con_state = CONFIGURED; \
g_cond_signal (s->con_conf_end); \
} G_STMT_END
struct bluetooth_data
{
struct ipc_data_cfg cfg; /* Bluetooth device config */
struct bt_getcapabilities_rsp cfg; /* Bluetooth device config */
gint link_mtu;
int samples; /* Number of encoded samples */
gchar buffer[BUFFER_SIZE]; /* Codec transfer buffer */
gsize count; /* Codec transfer buffer counter */
@ -124,6 +101,12 @@ static GstStaticPadTemplate a2dp_sink_factory =
"rate = (int) { 16000, 22050, 24000, 32000, 44100, 48000 }, "
"channels = (int) [ 1, 2 ]"));
static GIOError gst_a2dp_sink_audioservice_send (GstA2dpSink * self,
const bt_audio_msg_header_t * msg);
static GIOError gst_a2dp_sink_audioservice_expect (GstA2dpSink * self,
bt_audio_msg_header_t * outmsg, int expected_type);
static void
gst_a2dp_sink_base_init (gpointer g_class)
{
@ -142,8 +125,6 @@ gst_a2dp_sink_stop (GstBaseSink * basesink)
GST_INFO_OBJECT (self, "stop");
self->con_state = NOT_CONFIGURED;
if (self->watch_id != 0) {
g_source_remove (self->watch_id);
self->watch_id = 0;
@ -157,7 +138,7 @@ gst_a2dp_sink_stop (GstBaseSink * basesink)
}
if (self->server) {
g_io_channel_close (self->server);
bt_audio_service_close (g_io_channel_unix_get_fd (self->server));
g_io_channel_unref (self->server);
self->server = NULL;
}
@ -167,9 +148,9 @@ gst_a2dp_sink_stop (GstBaseSink * basesink)
self->data = NULL;
}
if (self->sbc) {
g_free (self->sbc);
self->sbc = NULL;
if (self->stream_caps) {
gst_caps_unref (self->stream_caps);
self->stream_caps = NULL;
}
if (self->dev_caps) {
@ -191,12 +172,6 @@ gst_a2dp_sink_finalize (GObject * object)
if (self->device)
g_free (self->device);
/* unlock any thread waiting for this signal */
GST_A2DP_SINK_MUTEX_LOCK (self);
GST_A2DP_SINK_CONFIGURATION_FAIL (self);
GST_A2DP_SINK_MUTEX_UNLOCK (self);
g_cond_free (self->con_conf_end);
g_mutex_free (self->sink_lock);
G_OBJECT_CLASS (parent_class)->finalize (object);
@ -241,19 +216,10 @@ gst_a2dp_sink_get_property (GObject * object, guint prop_id,
static gint
gst_a2dp_sink_bluetooth_recvmsg_fd (GstA2dpSink * sink)
{
char cmsg_b[CMSG_SPACE (sizeof (int))], m;
int err, ret, stream_fd;
struct iovec iov = { &m, sizeof (m) };
struct msghdr msgh;
struct cmsghdr *cmsg;
int err, ret;
memset (&msgh, 0, sizeof (msgh));
msgh.msg_iov = &iov;
msgh.msg_iovlen = 1;
msgh.msg_control = &cmsg_b;
msgh.msg_controllen = CMSG_LEN (sizeof (int));
ret = bt_audio_service_get_data_fd (g_io_channel_unix_get_fd (sink->server));
ret = recvmsg (g_io_channel_unix_get_fd (sink->server), &msgh, 0);
if (ret < 0) {
err = errno;
GST_ERROR_OBJECT (sink, "Unable to receive fd: %s (%d)",
@ -261,72 +227,17 @@ gst_a2dp_sink_bluetooth_recvmsg_fd (GstA2dpSink * sink)
return -err;
}
/* Receive auxiliary data in msgh */
for (cmsg = CMSG_FIRSTHDR (&msgh); cmsg != NULL;
cmsg = CMSG_NXTHDR (&msgh, cmsg)) {
if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
stream_fd = (*(int *) CMSG_DATA (cmsg));
sink->stream = g_io_channel_unix_new (stream_fd);
GST_DEBUG_OBJECT (sink, "stream_fd=%d", stream_fd);
return 0;
}
}
return -EINVAL;
}
static void
gst_a2dp_sink_check_dev_caps (GstA2dpSink * self)
{
GstStructure *structure;
GstCaps *dev_caps;
gint channels;
structure = gst_caps_get_structure (self->dev_caps, 0);
if (!gst_structure_get_int (structure, "channels", &channels))
channels = 2; /* FIXME how to get channels */
dev_caps = gst_sbc_caps_from_sbc (&(self->data->cfg), self->sbc, channels);
self->new_dev_caps = TRUE;
gst_caps_unref (self->dev_caps);
self->dev_caps = gst_caps_ref (dev_caps);
}
static int
gst_a2dp_sink_bluetooth_a2dp_init (GstA2dpSink * self,
struct ipc_codec_sbc *sbc)
{
struct bluetooth_data *data = self->data;
struct ipc_data_cfg *cfg = &data->cfg;
if (cfg == NULL) {
GST_ERROR_OBJECT (self, "Error getting codec parameters");
return -1;
}
if (cfg->codec != CFG_CODEC_SBC)
return -1;
data->count = sizeof (struct rtp_header) + sizeof (struct rtp_payload);
GST_DEBUG_OBJECT (self, "Codec parameters: "
"\tallocation=%u\n\tsubbands=%u\n "
"\tblocks=%u\n\tbitpool=%u\n",
sbc->allocation, sbc->subbands, sbc->blocks, sbc->bitpool);
sink->stream = g_io_channel_unix_new (ret);
GST_DEBUG_OBJECT (sink, "stream_fd=%d", ret);
return 0;
}
static gboolean
gst_a2dp_sink_init_pkt_conf (GstA2dpSink * sink,
GstCaps * caps, struct ipc_packet *pkt)
GstCaps * caps, sbc_capabilities_t * pkt)
{
struct ipc_data_cfg *cfg = (void *) pkt->data;
struct ipc_codec_sbc *sbc = (void *) cfg->data;
sbc_capabilities_t *cfg = &sink->data->cfg.sbc_capabilities;
const GValue *value = NULL;
const char *pref, *name;
GstStructure *structure = gst_caps_get_structure (caps, 0);
@ -338,26 +249,21 @@ gst_a2dp_sink_init_pkt_conf (GstA2dpSink * sink,
return FALSE;
}
if (sink->device)
strncpy (pkt->device, sink->device, 18);
pkt->role = PKT_ROLE_HIFI;
value = gst_structure_get_value (structure, "rate");
cfg->rate = g_value_get_int (value);
cfg->frequency = g_value_get_int (value);
value = gst_structure_get_value (structure, "mode");
pref = g_value_get_string (value);
if (strcmp (pref, "auto") == 0)
cfg->mode = CFG_MODE_AUTO;
cfg->channel_mode = BT_A2DP_CHANNEL_MODE_AUTO;
else if (strcmp (pref, "mono") == 0)
cfg->mode = CFG_MODE_MONO;
cfg->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
else if (strcmp (pref, "dual") == 0)
cfg->mode = CFG_MODE_DUAL_CHANNEL;
cfg->channel_mode = BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
else if (strcmp (pref, "stereo") == 0)
cfg->mode = CFG_MODE_STEREO;
cfg->channel_mode = BT_A2DP_CHANNEL_MODE_STEREO;
else if (strcmp (pref, "joint") == 0)
cfg->mode = CFG_MODE_JOINT_STEREO;
cfg->channel_mode = BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
else {
GST_ERROR_OBJECT (sink, "Invalid mode %s", pref);
return FALSE;
@ -366,106 +272,27 @@ gst_a2dp_sink_init_pkt_conf (GstA2dpSink * sink,
value = gst_structure_get_value (structure, "allocation");
pref = g_value_get_string (value);
if (strcmp (pref, "auto") == 0)
sbc->allocation = CFG_ALLOCATION_AUTO;
cfg->allocation_method = BT_A2DP_ALLOCATION_AUTO;
else if (strcmp (pref, "loudness") == 0)
sbc->allocation = CFG_ALLOCATION_LOUDNESS;
cfg->allocation_method = BT_A2DP_ALLOCATION_LOUDNESS;
else if (strcmp (pref, "snr") == 0)
sbc->allocation = CFG_ALLOCATION_SNR;
cfg->allocation_method = BT_A2DP_ALLOCATION_SNR;
else {
GST_ERROR_OBJECT (sink, "Invalid allocation: %s", pref);
return FALSE;
}
value = gst_structure_get_value (structure, "subbands");
sbc->subbands = g_value_get_int (value);
cfg->subbands = g_value_get_int (value);
value = gst_structure_get_value (structure, "blocks");
sbc->blocks = g_value_get_int (value);
cfg->block_length = g_value_get_int (value);
/* FIXME min and max ??? */
value = gst_structure_get_value (structure, "bitpool");
sbc->bitpool = g_value_get_int (value);
cfg->max_bitpool = cfg->min_bitpool = g_value_get_int (value);
pkt->length = sizeof (*cfg) + sizeof (*sbc);
pkt->type = PKT_TYPE_CFG_REQ;
pkt->error = PKT_ERROR_NONE;
return TRUE;
}
static gboolean
gst_a2dp_sink_conf_resp (GstA2dpSink * sink)
{
gchar buf[IPC_MTU];
GIOError io_error;
gsize ret;
gint total;
struct ipc_packet *pkt = (void *) buf;
struct ipc_data_cfg *cfg = (void *) pkt->data;
struct ipc_codec_sbc *sbc = (void *) cfg->data;
memset (buf, 0, sizeof (buf));
io_error = g_io_channel_read (sink->server, (gchar *) buf,
sizeof (*pkt) + sizeof (*cfg), &ret);
if (io_error != G_IO_ERROR_NONE && ret > 0) {
GST_ERROR_OBJECT (sink, "Error ocurred while receiving "
"configurarion packet answer");
return FALSE;
}
total = ret;
if (pkt->type != PKT_TYPE_CFG_RSP) {
GST_ERROR_OBJECT (sink, "Unexpected packet type %d " "received", pkt->type);
return FALSE;
}
if (pkt->error != PKT_ERROR_NONE) {
GST_ERROR_OBJECT (sink, "Error %d while configuring " "device", pkt->error);
return FALSE;
}
if (cfg->codec != CFG_CODEC_SBC) {
GST_ERROR_OBJECT (sink, "Unsupported format");
return FALSE;
}
io_error = g_io_channel_read (sink->server, (gchar *) sbc,
sizeof (*sbc), &ret);
if (io_error != G_IO_ERROR_NONE) {
GST_ERROR_OBJECT (sink, "Error while reading data from socket "
"%s (%d)", strerror (errno), errno);
return FALSE;
} else if (ret == 0) {
GST_ERROR_OBJECT (sink, "Read 0 bytes from socket");
return FALSE;
}
total += ret;
GST_DEBUG_OBJECT (sink, "OK - %d bytes received", total);
if (pkt->length != (total - sizeof (struct ipc_packet))) {
GST_ERROR_OBJECT (sink, "Error while configuring device: "
"packet size doesn't match");
return FALSE;
}
memcpy (&sink->data->cfg, cfg, sizeof (*cfg));
memcpy (sink->sbc, sbc, sizeof (struct ipc_codec_sbc));
gst_a2dp_sink_check_dev_caps (sink);
GST_DEBUG_OBJECT (sink, "Device configuration:\n\tchannel=%p\n\t"
"fd_opt=%u\n\tpkt_len=%u\n\tsample_size=%u\n\trate=%u",
sink->stream, sink->data->cfg.fd_opt,
sink->data->cfg.pkt_len, sink->data->cfg.sample_size,
sink->data->cfg.rate);
if (sink->data->cfg.codec == CFG_CODEC_SBC) {
/* FIXME is this necessary? */
ret = gst_a2dp_sink_bluetooth_a2dp_init (sink, sbc);
if (ret < 0)
return FALSE;
}
memcpy (pkt, cfg, sizeof (*pkt));
return TRUE;
}
@ -510,7 +337,7 @@ gst_a2dp_sink_conf_recv_stream_fd (GstA2dpSink * self)
GST_LOG_OBJECT (self, "emptying stream pipe");
while (1) {
err = g_io_channel_read (self->stream, data->buffer,
(gsize) data->cfg.pkt_len, &read);
(gsize) data->cfg.link_mtu, &read);
if (err != G_IO_ERROR_NONE || read <= 0)
break;
}
@ -534,34 +361,6 @@ gst_a2dp_sink_conf_recv_stream_fd (GstA2dpSink * self)
return TRUE;
}
static void
gst_a2dp_sink_conf_recv_data (GstA2dpSink * sink)
{
/*
* We hold the lock, since we can send a signal.
* It is a good practice, according to the glib api.
*/
GST_A2DP_SINK_MUTEX_LOCK (sink);
switch (sink->con_state) {
case CONFIGURING_SENT_CONF:
if (gst_a2dp_sink_conf_resp (sink))
sink->con_state = CONFIGURING_RCVD_DEV_CONF;
else
GST_A2DP_SINK_CONFIGURATION_FAIL (sink);
break;
case CONFIGURING_RCVD_DEV_CONF:
if (gst_a2dp_sink_conf_recv_stream_fd (sink))
GST_A2DP_SINK_CONFIGURATION_SUCCESS (sink);
else
GST_A2DP_SINK_CONFIGURATION_FAIL (sink);
break;
}
GST_A2DP_SINK_MUTEX_UNLOCK (sink);
}
static gboolean
server_callback (GIOChannel * chan, GIOCondition cond, gpointer data)
{
@ -572,15 +371,218 @@ server_callback (GIOChannel * chan, GIOCondition cond, gpointer data)
else if (cond & G_IO_ERR) {
sink = GST_A2DP_SINK (data);
GST_WARNING_OBJECT (sink, "Untreated callback G_IO_ERR");
} else if (cond & G_IO_IN) {
sink = GST_A2DP_SINK (data);
if (sink->con_state != NOT_CONFIGURED && sink->con_state != CONFIGURED)
gst_a2dp_sink_conf_recv_data (sink);
else
GST_WARNING_OBJECT (sink, "Unexpected data received");
}
return TRUE;
}
static gboolean
gst_a2dp_sink_update_caps (GstA2dpSink * self)
{
sbc_capabilities_t *sbc = &self->data->cfg.sbc_capabilities;
GstStructure *structure;
GValue *value;
GValue *list;
gchar *tmp;
GST_LOG_OBJECT (self, "updating device caps");
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_AUTO) {
g_value_set_static_string (value, "joint");
gst_value_list_prepend_value (list, value);
g_value_set_static_string (value, "stereo");
gst_value_list_prepend_value (list, value);
g_value_set_static_string (value, "mono");
gst_value_list_prepend_value (list, value);
g_value_set_static_string (value, "dual");
gst_value_list_prepend_value (list, value);
} else {
sink = GST_A2DP_SINK (data);
GST_WARNING_OBJECT (sink, "Unexpected callback call");
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_AUTO) {
g_value_set_static_string (value, "loudness");
gst_value_list_prepend_value (list, value);
g_value_set_static_string (value, "snr");
gst_value_list_prepend_value (list, value);
} else {
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_A2DP_SAMPLING_FREQ_48000) {
g_value_set_int (value, 48000);
gst_value_list_prepend_value (list, value);
}
if (sbc->frequency & BT_A2DP_SAMPLING_FREQ_44100) {
g_value_set_int (value, 44100);
gst_value_list_prepend_value (list, value);
}
if (sbc->frequency & BT_A2DP_SAMPLING_FREQ_32000) {
g_value_set_int (value, 32000);
gst_value_list_prepend_value (list, value);
}
if (sbc->frequency & BT_A2DP_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, sbc->min_bitpool, sbc->max_bitpool);
gst_structure_set_value (structure, "bitpool", value);
/* channels */
gst_value_set_int_range (value, 1, 2);
gst_structure_set_value (structure, "channels", value);
g_free (value);
self->dev_caps = gst_caps_new_full (structure, NULL);
tmp = gst_caps_to_string (self->dev_caps);
GST_DEBUG_OBJECT (self, "Device capabilities: %s", tmp);
g_free (tmp);
return TRUE;
}
static gboolean
gst_a2dp_sink_get_capabilities (GstA2dpSink * self)
{
gchar *buf[BT_AUDIO_IPC_PACKET_SIZE];
struct bt_getcapabilities_req *req = (void *) buf;
struct bt_getcapabilities_rsp *rsp = (void *) buf;
GIOError io_error;
memset (req, 0, BT_AUDIO_IPC_PACKET_SIZE);
req->h.msg_type = BT_GETCAPABILITIES_REQ;
strncpy (req->device, self->device, 18);
req->transport = BT_CAPABILITIES_TRANSPORT_A2DP;
req->access_mode = BT_CAPABILITIES_ACCESS_MODE_WRITE;
io_error = gst_a2dp_sink_audioservice_send (self, &req->h);
if (io_error != G_IO_ERROR_NONE) {
GST_ERROR_OBJECT (self, "Error while asking device caps");
}
io_error = gst_a2dp_sink_audioservice_expect (self, &rsp->h,
BT_GETCAPABILITIES_RSP);
if (io_error != G_IO_ERROR_NONE) {
GST_ERROR_OBJECT (self, "Error while getting device caps");
return FALSE;
}
if (rsp->posix_errno != 0) {
GST_ERROR_OBJECT (self, "BT_GETCAPABILITIES failed : %s(%d)",
strerror (rsp->posix_errno), rsp->posix_errno);
return FALSE;
}
if (rsp->transport != BT_CAPABILITIES_TRANSPORT_A2DP) {
GST_ERROR_OBJECT (self, "Non a2dp answer from device");
return FALSE;
}
memcpy (&self->data->cfg, rsp, sizeof (*rsp));
if (!gst_a2dp_sink_update_caps (self)) {
GST_WARNING_OBJECT (self, "failed to update capabilities");
return FALSE;
}
return TRUE;
@ -590,7 +592,6 @@ static gboolean
gst_a2dp_sink_start (GstBaseSink * basesink)
{
GstA2dpSink *self = GST_A2DP_SINK (basesink);
struct sockaddr_un addr = { AF_UNIX, IPC_SOCKET_NAME };
gint sk;
gint err;
@ -598,107 +599,143 @@ gst_a2dp_sink_start (GstBaseSink * basesink)
self->watch_id = 0;
sk = socket (PF_LOCAL, SOCK_STREAM, 0);
if (sk < 0) {
sk = bt_audio_service_open ();
if (sk <= 0) {
err = errno;
GST_ERROR_OBJECT (self, "Cannot open socket: %s (%d)", strerror (err), err);
return FALSE;
}
if (connect (sk, (struct sockaddr *) &addr, sizeof (addr)) < 0) {
err = errno;
GST_ERROR_OBJECT (self, "Connection fail %s (%d)", strerror (err), err);
close (sk);
return FALSE;
GST_ERROR_OBJECT (self, "Cannot open connection to bt "
"audio service: %s %d", strerror (err), err);
goto failed;
}
self->server = g_io_channel_unix_new (sk);
self->watch_id = g_io_add_watch (self->server, G_IO_IN | G_IO_HUP |
G_IO_ERR | G_IO_NVAL, server_callback, self);
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);
memset (self->data, 0, sizeof (struct bluetooth_data));
self->sbc = g_new0 (struct ipc_codec_sbc, 1);
self->stream = NULL;
self->con_state = NOT_CONFIGURED;
self->new_dev_caps = FALSE;
self->dev_caps = NULL;
self->stream_caps = NULL;
self->waiting_con_conf = FALSE;
if (!gst_a2dp_sink_get_capabilities (self))
goto failed;
return TRUE;
failed:
bt_audio_service_close (sk);
return FALSE;
}
static gboolean
gst_a2dp_sink_send_conf_pkt (GstA2dpSink * sink, GstCaps * caps)
gst_a2dp_sink_stream_start (GstA2dpSink * self)
{
gchar buf[IPC_MTU];
struct ipc_packet *pkt = (void *) buf;
gboolean ret;
gsize bytes_sent;
gchar buf[BT_AUDIO_IPC_PACKET_SIZE];
struct bt_streamstart_req *req = (void *) buf;
struct bt_streamstart_rsp *rsp = (void *) buf;
struct bt_datafd_ind *ind = (void *) buf;
GIOError io_error;
g_assert (sink->con_state == NOT_CONFIGURED);
GST_DEBUG_OBJECT (self, "stream start");
memset (pkt, 0, sizeof (buf));
ret = gst_a2dp_sink_init_pkt_conf (sink, caps, pkt);
if (!ret) {
GST_ERROR_OBJECT (sink, "Couldn't initialize parse caps "
"to packet configuration");
return FALSE;
}
memset (req, 0, sizeof (buf));
req->h.msg_type = BT_STREAMSTART_REQ;
sink->con_state = CONFIGURING_INIT;
io_error = g_io_channel_write (sink->server, (gchar *) pkt,
sizeof (*pkt) + pkt->length, &bytes_sent);
io_error = gst_a2dp_sink_audioservice_send (self, &req->h);
if (io_error != G_IO_ERROR_NONE) {
GST_ERROR_OBJECT (sink, "Error ocurred while sending "
"configurarion packet");
sink->con_state = NOT_CONFIGURED;
GST_ERROR_OBJECT (self, "Error ocurred while sending " "start packet");
return FALSE;
}
GST_DEBUG_OBJECT (sink, "%d bytes sent", bytes_sent);
sink->con_state = CONFIGURING_SENT_CONF;
GST_DEBUG_OBJECT (self, "stream start packet sent");
io_error = gst_a2dp_sink_audioservice_expect (self, &rsp->h,
BT_STREAMSTART_RSP);
if (io_error != G_IO_ERROR_NONE) {
GST_ERROR_OBJECT (self, "Error while stream start confirmation");
return FALSE;
}
if (rsp->posix_errno != 0) {
GST_ERROR_OBJECT (self, "BT_STREAMSTART_RSP failed : %s(%d)",
strerror (rsp->posix_errno), rsp->posix_errno);
return FALSE;
}
GST_DEBUG_OBJECT (self, "stream started");
io_error = gst_a2dp_sink_audioservice_expect (self, &ind->h, BT_STREAMFD_IND);
if (io_error != G_IO_ERROR_NONE) {
GST_ERROR_OBJECT (self, "Error while receiving stream fd");
return FALSE;
}
if (!gst_a2dp_sink_conf_recv_stream_fd (self))
return FALSE;
return TRUE;
}
static gboolean
gst_a2dp_sink_start_dev_conf (GstA2dpSink * sink, GstCaps * caps)
gst_a2dp_sink_configure (GstA2dpSink * self, GstCaps * caps)
{
gchar buf[BT_AUDIO_IPC_PACKET_SIZE];
struct bt_setconfiguration_req *req = (void *) buf;
struct bt_setconfiguration_rsp *rsp = (void *) buf;
gboolean ret;
GIOError io_error;
g_assert (sink->con_state == NOT_CONFIGURED);
GST_DEBUG_OBJECT (self, "configuring device");
GST_DEBUG_OBJECT (sink, "starting device configuration");
memset (req, 0, sizeof (buf));
req->h.msg_type = BT_SETCONFIGURATION_REQ;
strncpy (req->device, self->device, 18);
ret = gst_a2dp_sink_init_pkt_conf (self, caps, &req->sbc_capabilities);
if (!ret) {
GST_ERROR_OBJECT (self, "Couldn't parse caps " "to packet configuration");
return FALSE;
}
ret = gst_a2dp_sink_send_conf_pkt (sink, caps);
io_error = gst_a2dp_sink_audioservice_send (self, &req->h);
if (io_error != G_IO_ERROR_NONE) {
GST_ERROR_OBJECT (self, "Error ocurred while sending "
"configurarion packet");
return FALSE;
}
return ret;
GST_DEBUG_OBJECT (self, "configuration packet sent");
io_error = gst_a2dp_sink_audioservice_expect (self, &rsp->h,
BT_SETCONFIGURATION_RSP);
if (io_error != G_IO_ERROR_NONE) {
GST_ERROR_OBJECT (self, "Error while receiving device confirmation");
return FALSE;
}
if (rsp->posix_errno != 0) {
GST_ERROR_OBJECT (self, "BT_SETCONFIGURATION_RSP failed : %s(%d)",
strerror (rsp->posix_errno), rsp->posix_errno);
return FALSE;
}
GST_DEBUG_OBJECT (self, "configuration set");
return TRUE;
}
static GstFlowReturn
gst_a2dp_sink_preroll (GstBaseSink * basesink, GstBuffer * buffer)
{
GstA2dpSink *sink = GST_A2DP_SINK (basesink);
gboolean ret;
GST_A2DP_SINK_MUTEX_LOCK (sink);
if (sink->con_state == NOT_CONFIGURED)
gst_a2dp_sink_start_dev_conf (sink, GST_BUFFER_CAPS (buffer));
/* wait for the connection process to finish */
if (sink->con_state != CONFIGURED)
GST_A2DP_SINK_WAIT_CON_END (sink);
ret = gst_a2dp_sink_stream_start (sink);
GST_A2DP_SINK_MUTEX_UNLOCK (sink);
if (sink->con_state != CONFIGURED)
if (!ret)
return GST_FLOW_ERROR;
return GST_FLOW_OK;
@ -750,7 +787,7 @@ gst_a2dp_sink_render (GstBaseSink * basesink, GstBuffer * buffer)
encoded = GST_BUFFER_SIZE (buffer);
if (data->count + encoded >= data->cfg.pkt_len) {
if (data->count + encoded >= data->cfg.link_mtu) {
ret = gst_a2dp_sink_avdtp_write (self);
if (ret < 0)
return GST_FLOW_ERROR;
@ -763,25 +800,30 @@ gst_a2dp_sink_render (GstBaseSink * basesink, GstBuffer * buffer)
return GST_FLOW_OK;
}
static GstCaps *
gst_a2dp_sink_get_caps (GstBaseSink * basesink)
{
GstA2dpSink *self = GST_A2DP_SINK (basesink);
return self->dev_caps ? gst_caps_ref (self->dev_caps) : NULL;
}
static gboolean
gst_a2dp_sink_set_caps (GstBaseSink * basesink, GstCaps * caps)
{
GstA2dpSink *self = GST_A2DP_SINK (basesink);
gboolean ret;
GST_A2DP_SINK_MUTEX_LOCK (self);
if (self->con_state == NOT_CONFIGURED) {
gst_a2dp_sink_start_dev_conf (self, caps);
ret = gst_a2dp_sink_configure (self, caps);
if (self->dev_caps)
gst_caps_unref (self->dev_caps);
self->dev_caps = gst_caps_ref (caps);
if (self->stream_caps)
gst_caps_unref (self->stream_caps);
self->stream_caps = gst_caps_ref (caps);
/* we suppose the device will accept this caps */
self->new_dev_caps = FALSE;
}
GST_A2DP_SINK_MUTEX_UNLOCK (self);
return TRUE;
return ret;
}
static gboolean
@ -807,12 +849,7 @@ gst_a2dp_sink_buffer_alloc (GstBaseSink * basesink,
return GST_FLOW_ERROR;
}
if (self->new_dev_caps && self->dev_caps) {
GST_INFO_OBJECT (self, "new caps from device");
gst_buffer_set_caps (*buf, self->dev_caps);
self->new_dev_caps = FALSE;
} else
gst_buffer_set_caps (*buf, caps);
gst_buffer_set_caps (*buf, caps);
GST_BUFFER_OFFSET (*buf) = offset;
@ -836,6 +873,7 @@ gst_a2dp_sink_class_init (GstA2dpSinkClass * klass)
basesink_class->render = GST_DEBUG_FUNCPTR (gst_a2dp_sink_render);
basesink_class->preroll = GST_DEBUG_FUNCPTR (gst_a2dp_sink_preroll);
basesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_a2dp_sink_set_caps);
basesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_a2dp_sink_get_caps);
basesink_class->unlock = GST_DEBUG_FUNCPTR (gst_a2dp_sink_unlock);
basesink_class->buffer_alloc = GST_DEBUG_FUNCPTR (gst_a2dp_sink_buffer_alloc);
@ -851,12 +889,78 @@ gst_a2dp_sink_init (GstA2dpSink * self, GstA2dpSinkClass * klass)
{
self->device = NULL;
self->data = NULL;
self->sbc = NULL;
self->stream = NULL;
self->con_state = NOT_CONFIGURED;
self->con_conf_end = g_cond_new ();
self->waiting_con_conf = FALSE;
self->dev_caps = NULL;
self->sink_lock = g_mutex_new ();
}
static GIOError
gst_a2dp_sink_audioservice_send (GstA2dpSink * self,
const bt_audio_msg_header_t * msg)
{
gint err;
GIOError error;
gsize written;
GST_DEBUG_OBJECT (self, "sending %s", bt_audio_strmsg (msg->msg_type));
error = g_io_channel_write (self->server, (const gchar *) msg,
BT_AUDIO_IPC_PACKET_SIZE, &written);
if (error != G_IO_ERROR_NONE) {
err = errno;
GST_ERROR_OBJECT (self, "Error sending data to audio service:"
" %s(%d)", strerror (err), err);
}
return error;
}
static GIOError
gst_a2dp_sink_audioservice_recv (GstA2dpSink * self,
bt_audio_msg_header_t * inmsg)
{
GIOError status;
gsize bytes_read;
const char *type;
status = g_io_channel_read (self->server, (gchar *) inmsg,
BT_AUDIO_IPC_PACKET_SIZE, &bytes_read);
if (status != G_IO_ERROR_NONE) {
GST_ERROR_OBJECT (self, "Error receiving data from service");
return status;
}
type = bt_audio_strmsg (inmsg->msg_type);
if (!type) {
GST_ERROR_OBJECT (self, "Bogus message type %d "
"received from audio service", inmsg->msg_type);
return G_IO_ERROR_INVAL;
}
GST_DEBUG_OBJECT (self, "Received %s", type);
return status;
}
static GIOError
gst_a2dp_sink_audioservice_expect (GstA2dpSink * self,
bt_audio_msg_header_t * outmsg, int expected_type)
{
GIOError status;
status = gst_a2dp_sink_audioservice_recv (self, outmsg);
if (status != G_IO_ERROR_NONE)
return status;
if (outmsg->msg_type != expected_type) {
GST_ERROR_OBJECT (self, "Bogus message %s "
"received while %s was expected",
bt_audio_strmsg (outmsg->msg_type), bt_audio_strmsg (expected_type));
return G_IO_ERROR_INVAL;
}
return status;
}

10
sys/bluez/gsta2dpsink.h
View file

@ -49,15 +49,13 @@ struct _GstA2dpSink {
GIOChannel *stream;
struct bluetooth_data *data;
struct ipc_codec_sbc *sbc;
GIOChannel *server;
gint con_state;
GstCaps *dev_caps;
gboolean new_dev_caps;
/* stream connection data */
GstCaps *stream_caps;
GstCaps *dev_caps;
GCond *con_conf_end;
gboolean waiting_con_conf;
GMutex *sink_lock;
guint watch_id;