static gboolean
gst_avdtp_src_query (GstBaseSrc * bsrc, GstQuery * query)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (bsrc);
gboolean ret = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:{
GstFormat format;
if (avdtpsrc->duration != GST_CLOCK_TIME_NONE) {
gst_query_parse_duration (query, &format, NULL);
if (format == GST_FORMAT_TIME) {
gst_query_set_duration (query, format, (gint64) avdtpsrc->duration);
ret = TRUE;
}
}
break;
}
default:
ret = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query);
}
return ret;
}
static gboolean
gst_avdtp_src_start (GstBaseSrc * bsrc)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (bsrc);
/* None of this can go into prepare() since we need to set up the
* connection to figure out what format the device is going to send us.
*/
if (!gst_avdtp_connection_acquire (&avdtpsrc->conn, FALSE)) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to acquire connection");
return FALSE;
}
if (!gst_avdtp_connection_get_properties (&avdtpsrc->conn)) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to get transport properties");
goto fail;
}
if (!gst_avdtp_connection_conf_recv_stream_fd (&avdtpsrc->conn)) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to configure stream fd");
goto fail;
}
GST_DEBUG_OBJECT (avdtpsrc, "Setting block size to link MTU (%d)",
avdtpsrc->conn.data.link_mtu);
gst_base_src_set_blocksize (GST_BASE_SRC (avdtpsrc),
avdtpsrc->conn.data.link_mtu);
avdtpsrc->dev_caps = gst_avdtp_connection_get_caps (&avdtpsrc->conn);
if (!avdtpsrc->dev_caps) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to get device caps");
goto fail;
}
gst_poll_fd_init (&avdtpsrc->pfd);
avdtpsrc->pfd.fd = g_io_channel_unix_get_fd (avdtpsrc->conn.stream);
gst_poll_add_fd (avdtpsrc->poll, &avdtpsrc->pfd);
gst_poll_fd_ctl_read (avdtpsrc->poll, &avdtpsrc->pfd, TRUE);
gst_poll_set_flushing (avdtpsrc->poll, FALSE);
g_atomic_int_set (&avdtpsrc->unlocked, FALSE);
/* The life time of the connection is shorter than the src object, so we
* don't need to worry about memory management */
gst_avdtp_connection_notify_volume (&avdtpsrc->conn, G_OBJECT (avdtpsrc),
"transport-volume");
gst_avdtp_src_start_avrcp (avdtpsrc);
return TRUE;
fail:
gst_avdtp_connection_release (&avdtpsrc->conn);
return FALSE;
}
static gboolean
gst_avdtp_src_unlock (GstBaseSrc * bsrc)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (bsrc);
g_atomic_int_set (&avdtpsrc->unlocked, TRUE);
gst_poll_set_flushing (avdtpsrc->poll, TRUE);
return TRUE;
}
static void
gst_avdtp_src_finalize (GObject * object)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (object);
gst_poll_free (avdtpsrc->poll);
gst_avdtp_connection_reset (&avdtpsrc->conn);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_avdtp_src_unlock_stop (GstBaseSrc * bsrc)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (bsrc);
g_atomic_int_set (&avdtpsrc->unlocked, FALSE);
gst_poll_set_flushing (avdtpsrc->poll, FALSE);
/* Flush out any stale data that might be buffered */
gst_avdtp_connection_conf_recv_stream_fd (&avdtpsrc->conn);
return TRUE;
}
static void
gst_avdtp_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (object);
switch (prop_id) {
case PROP_TRANSPORT:
g_value_set_string (value, avdtpsrc->conn.transport);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_avdtp_src_stop (GstBaseSrc * bsrc)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (bsrc);
gst_poll_remove_fd (avdtpsrc->poll, &avdtpsrc->pfd);
gst_poll_set_flushing (avdtpsrc->poll, TRUE);
gst_avdtp_connection_release (&avdtpsrc->conn);
if (avdtpsrc->dev_caps) {
gst_caps_unref (avdtpsrc->dev_caps);
avdtpsrc->dev_caps = NULL;
}
return TRUE;
}
static void
avrcp_metadata_cb (GstAvrcpConnection * avrcp, GstTagList * taglist,
gpointer user_data)
{
GstAvdtpSrc *src = GST_AVDTP_SRC (user_data);
guint64 duration;
if (gst_tag_list_get_uint64 (taglist, GST_TAG_DURATION, &duration)) {
src->duration = duration;
gst_element_post_message (GST_ELEMENT (src),
gst_message_new_duration_changed (GST_OBJECT (src)));
}
gst_pad_push_event (GST_BASE_SRC_PAD (src),
gst_event_new_tag (gst_tag_list_copy (taglist)));
gst_element_post_message (GST_ELEMENT (src),
gst_message_new_tag (GST_OBJECT (src), taglist));
}
static void
gst_avdtp_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (object);
switch (prop_id) {
case PROP_TRANSPORT:
gst_avdtp_connection_set_transport (&avdtpsrc->conn,
g_value_get_string (value));
break;
case PROP_TRANSPORT_VOLUME:
/* This is no-op because setting is handled via a GBinding */
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstFlowReturn
gst_avdtp_src_create (GstBaseSrc * bsrc, guint64 offset, guint length,
GstBuffer ** outbuf)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (bsrc);
GstBuffer *buf = NULL;
GstMapInfo info;
int ret;
if (g_atomic_int_get (&avdtpsrc->unlocked))
return GST_FLOW_FLUSHING;
/* We don't operate in GST_FORMAT_BYTES, so offset is ignored */
while ((ret = gst_poll_wait (avdtpsrc->poll, GST_CLOCK_TIME_NONE))) {
if (g_atomic_int_get (&avdtpsrc->unlocked))
/* We're unlocked, time to gtfo */
return GST_FLOW_FLUSHING;
if (ret < 0)
/* Something went wrong */
goto read_error;
if (ret > 0)
/* Got some data */
break;
}
ret = GST_BASE_SRC_CLASS (parent_class)->alloc (bsrc, offset, length, outbuf);
if (G_UNLIKELY (ret != GST_FLOW_OK))
goto alloc_failed;
buf = *outbuf;
gst_buffer_map (buf, &info, GST_MAP_WRITE);
ret = read (avdtpsrc->pfd.fd, info.data, length);
if (ret < 0)
goto read_error;
else if (ret == 0) {
GST_INFO_OBJECT (avdtpsrc, "Got EOF on the transport fd");
goto eof;
}
if (ret < length)
gst_buffer_set_size (buf, ret);
GST_LOG_OBJECT (avdtpsrc, "Read %d bytes", ret);
gst_buffer_unmap (buf, &info);
*outbuf = buf;
return GST_FLOW_OK;
alloc_failed:
{
GST_DEBUG_OBJECT (bsrc, "alloc failed: %s", gst_flow_get_name (ret));
return ret;
}
read_error:
GST_ERROR_OBJECT (avdtpsrc, "Error while reading audio data: %s",
strerror (errno));
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
eof:
gst_buffer_unref (buf);
return GST_FLOW_EOS;
}
static GstCaps *
gst_avdtp_src_getcaps (GstBaseSrc * bsrc, GstCaps * filter)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (bsrc);
GstCaps *caps = NULL, *ret = NULL;
if (avdtpsrc->dev_caps) {
const GValue *value;
const char *format;
int rate;
GstStructure *structure = gst_caps_get_structure (avdtpsrc->dev_caps, 0);
format = gst_structure_get_name (structure);
if (g_str_equal (format, "audio/x-sbc")) {
/* FIXME: we can return a fixed payload type once we
* are in PLAYING */
caps = gst_caps_new_simple ("application/x-rtp",
"media", G_TYPE_STRING, "audio",
"payload", GST_TYPE_INT_RANGE, 96, 127,
"encoding-name", G_TYPE_STRING, "SBC", NULL);
} else if (g_str_equal (format, "audio/mpeg")) {
caps = gst_caps_new_simple ("application/x-rtp",
"media", G_TYPE_STRING, "audio",
"payload", GST_TYPE_INT_RANGE, 96, 127,
"encoding-name", G_TYPE_STRING, "MP4A-LATM", NULL);
value = gst_structure_get_value (structure, "mpegversion");
if (!value || !G_VALUE_HOLDS_INT (value)) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to get mpegversion");
gst_caps_unref (caps);
return NULL;
}
gst_caps_set_simple (caps, "mpegversion", G_TYPE_INT,
g_value_get_int (value), NULL);
value = gst_structure_get_value (structure, "channels");
if (!value || !G_VALUE_HOLDS_INT (value)) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to get channels");
gst_caps_unref (caps);
return NULL;
}
gst_caps_set_simple (caps, "channels", G_TYPE_INT,
g_value_get_int (value), NULL);
value = gst_structure_get_value (structure, "base-profile");
if (!value || !G_VALUE_HOLDS_STRING (value)) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to get base-profile");
gst_caps_unref (caps);
return NULL;
}
gst_caps_set_simple (caps, "base-profile", G_TYPE_STRING,
g_value_get_string (value), NULL);
} else {
GST_ERROR_OBJECT (avdtpsrc,
"Only SBC and MPEG-2/4 are supported at the moment");
}
value = gst_structure_get_value (structure, "rate");
if (!value || !G_VALUE_HOLDS_INT (value)) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to get sample rate");
gst_caps_unref (caps);
return NULL;
}
rate = g_value_get_int (value);
gst_caps_set_simple (caps, "clock-rate", G_TYPE_INT, rate, NULL);
if (filter) {
ret = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
} else
ret = caps;
} else {
GST_DEBUG_OBJECT (avdtpsrc, "device not open, using template caps");
ret = GST_BASE_SRC_CLASS (parent_class)->get_caps (bsrc, filter);
}
return ret;
}
