static void
gst_video_detect_post_message (GstVideoDetect * videodetect, GstBuffer * buffer,
guint64 data)
{
GstBaseTransform *trans;
GstMessage *m;
guint64 duration, timestamp, running_time, stream_time;
trans = GST_BASE_TRANSFORM_CAST (videodetect);
/* get timestamps */
timestamp = GST_BUFFER_TIMESTAMP (buffer);
duration = GST_BUFFER_DURATION (buffer);
running_time = gst_segment_to_running_time (&trans->segment, GST_FORMAT_TIME,
timestamp);
stream_time = gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME,
timestamp);
/* post message */
m = gst_message_new_element (GST_OBJECT_CAST (videodetect),
gst_structure_new ("GstVideoDetect",
"have-pattern", G_TYPE_BOOLEAN, videodetect->in_pattern,
"timestamp", G_TYPE_UINT64, timestamp,
"stream-time", G_TYPE_UINT64, stream_time,
"running-time", G_TYPE_UINT64, running_time,
"duration", G_TYPE_UINT64, duration,
"data-uint64", G_TYPE_UINT64, data,
"data", G_TYPE_UINT, (guint) MIN (data, G_MAXINT), NULL));
gst_element_post_message (GST_ELEMENT_CAST (videodetect), m);
}
EXPORT_C
#endif
void
gst_mixer_options_list_changed (GstMixer * mixer, GstMixerOptions * opts)
{
GstStructure *s;
GstMessage *m;
g_return_if_fail (mixer != NULL);
g_return_if_fail (GST_IS_ELEMENT (mixer));
g_return_if_fail (opts != NULL);
g_return_if_fail (GST_IS_MIXER_OPTIONS (opts));
/* we do not include the new list here on purpose, so that the application
* has to use gst_mixer_options_get_values() to get the new list, which then
* allows the mixer options object to update the internal GList in a somewhat
* thread-safe way at least */
s = gst_structure_new (GST_MIXER_MESSAGE_NAME,
"type", G_TYPE_STRING, "options-list-changed",
"options", GST_TYPE_MIXER_OPTIONS, opts, NULL);
m = gst_message_new_element (GST_OBJECT (mixer), s);
if (gst_element_post_message (GST_ELEMENT (mixer), m) == FALSE) {
GST_WARNING ("This element has no bus, therefore no message sent!");
}
}
static VALUE
element_initialize(VALUE self, VALUE src, VALUE structure)
{
G_INITIALIZE(self, gst_message_new_element(RVAL2GST_OBJ(src),
RVAL2GST_STRUCT(structure)));
return Qnil;
}
static void
_state_changed (FsStreamTransmitter *stream_transmitter,
guint component,
FsStreamState state,
gpointer user_data)
{
FsRtpStream *self = FS_RTP_STREAM (user_data);
FsRtpSession *session = fs_rtp_stream_get_session (self, NULL);
GstElement *conf = NULL;
if (!session)
return;
g_object_get (session, "conference", &conf, NULL);
gst_element_post_message (conf,
gst_message_new_element (GST_OBJECT (conf),
gst_structure_new ("farstream-component-state-changed",
"stream", FS_TYPE_STREAM, self,
"component", G_TYPE_UINT, component,
"state", FS_TYPE_STREAM_STATE, state,
NULL)));
gst_object_unref (conf);
g_object_unref (session);
if (component == 1 && state == FS_STREAM_STATE_FAILED)
fs_stream_emit_error (FS_STREAM (self), FS_ERROR_CONNECTION_FAILED,
"Could not establish connection on the RTP component");
}
static void
gst_video_analyse_post_message (GstVideoAnalyse * videoanalyse,
GstBuffer * buffer)
{
GstBaseTransform *trans;
GstMessage *m;
guint64 duration, timestamp, running_time, stream_time;
trans = GST_BASE_TRANSFORM_CAST (videoanalyse);
/* get timestamps */
timestamp = GST_BUFFER_TIMESTAMP (buffer);
duration = GST_BUFFER_DURATION (buffer);
running_time = gst_segment_to_running_time (&trans->segment, GST_FORMAT_TIME,
timestamp);
stream_time = gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME,
timestamp);
m = gst_message_new_element (GST_OBJECT_CAST (videoanalyse),
gst_structure_new ("GstVideoAnalyse",
"timestamp", G_TYPE_UINT64, timestamp,
"stream-time", G_TYPE_UINT64, stream_time,
"running-time", G_TYPE_UINT64, running_time,
"duration", G_TYPE_UINT64, duration,
"brightness", G_TYPE_DOUBLE, videoanalyse->brightness,
"brightness-variance", G_TYPE_DOUBLE, videoanalyse->brightness_var,
NULL));
gst_element_post_message (GST_ELEMENT_CAST (videoanalyse), m);
}
static void
gst_progress_report_post_progress (GstProgressReport * filter,
GstFormat format, gint64 current, gint64 total)
{
GstStructure *s = NULL;
if (current >= 0 && total > 0) {
gdouble perc;
perc = gst_util_guint64_to_gdouble (current) * 100.0 /
gst_util_guint64_to_gdouble (total);
perc = CLAMP (perc, 0.0, 100.0);
/* we provide a "percent" field of integer type to stay compatible
* with qtdemux, but add a second "percent-double" field for those who
* want more precision and are too lazy to calculate it themselves */
s = gst_structure_new ("progress", "percent", G_TYPE_INT, (gint) perc,
"percent-double", G_TYPE_DOUBLE, perc, "current", G_TYPE_INT64, current,
"total", G_TYPE_INT64, total, NULL);
} else if (current >= 0) {
s = gst_structure_new ("progress", "current", G_TYPE_INT64, current, NULL);
}
if (s) {
GST_LOG_OBJECT (filter, "posting progress message: %" GST_PTR_FORMAT, s);
gst_structure_set (s, "format", GST_TYPE_FORMAT, format, NULL);
/* can't post it right here because we're holding the object lock */
filter->pending_msg = gst_message_new_element (GST_OBJECT_CAST (filter), s);
}
}
static void
gst_dtmf_src_post_message (GstDTMFSrc * dtmfsrc, const gchar * message_name,
GstDTMFSrcEvent * event)
{
GstStructure *s = NULL;
switch (event->event_type) {
case DTMF_EVENT_TYPE_START:
s = gst_structure_new (message_name,
"type", G_TYPE_INT, 1,
"method", G_TYPE_INT, 2,
"start", G_TYPE_BOOLEAN, TRUE,
"number", G_TYPE_INT, event->event_number,
"volume", G_TYPE_INT, event->volume, NULL);
break;
case DTMF_EVENT_TYPE_STOP:
s = gst_structure_new (message_name,
"type", G_TYPE_INT, 1, "method", G_TYPE_INT, 2,
"start", G_TYPE_BOOLEAN, FALSE, NULL);
break;
case DTMF_EVENT_TYPE_PAUSE_TASK:
return;
}
if (s)
gst_element_post_message (GST_ELEMENT (dtmfsrc),
gst_message_new_element (GST_OBJECT (dtmfsrc), s));
}
static void
send_5app_1el_1err_2app_messages (guint interval_usecs)
{
GstMessage *m;
GstStructure *s;
gint i;
for (i = 0; i < 5; i++) {
s = gst_structure_new ("test_message", "msg_id", G_TYPE_INT, i, NULL);
m = gst_message_new_application (NULL, s);
GST_LOG ("posting application message");
gst_bus_post (test_bus, m);
g_usleep (interval_usecs);
}
for (i = 0; i < 1; i++) {
s = gst_structure_new ("test_message", "msg_id", G_TYPE_INT, i, NULL);
m = gst_message_new_element (NULL, s);
GST_LOG ("posting element message");
gst_bus_post (test_bus, m);
g_usleep (interval_usecs);
}
for (i = 0; i < 1; i++) {
m = gst_message_new_error (NULL, NULL, "debug string");
GST_LOG ("posting error message");
gst_bus_post (test_bus, m);
g_usleep (interval_usecs);
}
for (i = 0; i < 2; i++) {
s = gst_structure_new ("test_message", "msg_id", G_TYPE_INT, i, NULL);
m = gst_message_new_application (NULL, s);
GST_LOG ("posting application message");
gst_bus_post (test_bus, m);
g_usleep (interval_usecs);
}
}
static void webKitMediaClearKeyDecryptorRequestDecryptionKey(WebKitMediaCommonEncryptionDecrypt* self, GstBuffer* initDataBuffer)
{
gst_element_post_message(GST_ELEMENT(self),
gst_message_new_element(GST_OBJECT(self),
gst_structure_new("drm-key-needed", "data", GST_TYPE_BUFFER, initDataBuffer,
"key-system-id", G_TYPE_STRING, "org.w3.clearkey", nullptr)));
}
static GstMessage *
gst_dtmf_src_prepare_message (GstRTPDTMFSrc * dtmfsrc,
const gchar * message_name, GstRTPDTMFSrcEvent * event)
{
GstStructure *s;
switch (event->event_type) {
case RTP_DTMF_EVENT_TYPE_START:
s = gst_structure_new (message_name,
"type", G_TYPE_INT, 1,
"method", G_TYPE_INT, 1,
"start", G_TYPE_BOOLEAN, TRUE,
"number", G_TYPE_INT, event->payload->event,
"volume", G_TYPE_INT, event->payload->volume, NULL);
break;
case RTP_DTMF_EVENT_TYPE_STOP:
s = gst_structure_new (message_name,
"type", G_TYPE_INT, 1, "method", G_TYPE_INT, 1,
"start", G_TYPE_BOOLEAN, FALSE, NULL);
break;
case RTP_DTMF_EVENT_TYPE_PAUSE_TASK:
return NULL;
default:
return NULL;
}
return gst_message_new_element (GST_OBJECT (dtmfsrc), s);
}
static GstFlowReturn
gst_compare_collect_pads (GstCollectPads2 * cpads, GstCompare * comp)
{
GstBuffer *buf1, *buf2;
buf1 = gst_collect_pads2_pop (comp->cpads,
gst_pad_get_element_private (comp->sinkpad));
buf2 = gst_collect_pads2_pop (comp->cpads,
gst_pad_get_element_private (comp->checkpad));
if (!buf1 && !buf2) {
gst_pad_push_event (comp->srcpad, gst_event_new_eos ());
return GST_FLOW_UNEXPECTED;
} else if (buf1 && buf2) {
gst_compare_buffers (comp, buf1, buf2);
} else {
GST_WARNING_OBJECT (comp, "buffer %p != NULL", buf1 ? buf1 : buf2);
comp->count++;
gst_element_post_message (GST_ELEMENT (comp),
gst_message_new_element (GST_OBJECT (comp),
gst_structure_new ("delta", "count", G_TYPE_INT, comp->count,
NULL)));
}
if (buf1)
gst_pad_push (comp->srcpad, buf1);
if (buf2)
gst_buffer_unref (buf2);
return GST_FLOW_OK;
}
/**
* gst_missing_encoder_message_new:
* @element: the #GstElement posting the message
* @encode_caps: the (fixed) caps for which an encoder element is needed
*
* Creates a missing-plugin message for @element to notify the application
* that an encoder element for a particular set of (fixed) caps is missing.
* This function is mainly for use in plugins.
*
* Returns: (transfer full): a new #GstMessage, or NULL on error
*/
GstMessage *
gst_missing_encoder_message_new (GstElement * element,
const GstCaps * encode_caps)
{
GstStructure *s;
GstCaps *caps;
gchar *description;
g_return_val_if_fail (element != NULL, NULL);
g_return_val_if_fail (GST_IS_ELEMENT (element), NULL);
g_return_val_if_fail (encode_caps != NULL, NULL);
g_return_val_if_fail (GST_IS_CAPS (encode_caps), NULL);
g_return_val_if_fail (!gst_caps_is_any (encode_caps), NULL);
g_return_val_if_fail (!gst_caps_is_empty (encode_caps), NULL);
g_return_val_if_fail (gst_caps_is_fixed (encode_caps), NULL);
description = gst_pb_utils_get_encoder_description (encode_caps);
caps = copy_and_clean_caps (encode_caps);
s = gst_structure_new ("missing-plugin", "type", G_TYPE_STRING,
"encoder", "detail", GST_TYPE_CAPS, caps, "name", G_TYPE_STRING,
description, NULL);
gst_caps_unref (caps);
g_free (description);
return gst_message_new_element (GST_OBJECT_CAST (element), s);
}
static void
_connection_failed (FsMsnConnection *connection, FsMsnStream *self)
{
FsMsnConference *conference = fs_msn_stream_get_conference (self, NULL);
if (!conference)
return;
GST_OBJECT_LOCK (conference);
self->priv->fd = -1;
GST_OBJECT_UNLOCK (conference);
gst_element_post_message (GST_ELEMENT (conference),
gst_message_new_element (GST_OBJECT (conference),
gst_structure_new ("farstream-component-state-changed",
"stream", FS_TYPE_STREAM, self,
"component", G_TYPE_UINT, 1,
"state", FS_TYPE_STREAM_STATE, FS_STREAM_STATE_FAILED,
NULL)));
fs_stream_emit_error (FS_STREAM (self), FS_ERROR_CONNECTION_FAILED,
"Could not establish streaming connection");
gst_object_unref (conference);
}
static void
_new_local_candidate (
FsStreamTransmitter *stream_transmitter,
FsCandidate *candidate,
gpointer user_data)
{
FsRtpStream *self = FS_RTP_STREAM (user_data);
FsRtpSession *session = fs_rtp_stream_get_session (self, NULL);
GstElement *conf = NULL;
if (!session)
return;
g_object_get (session, "conference", &conf, NULL);
gst_element_post_message (conf,
gst_message_new_element (GST_OBJECT (conf),
gst_structure_new ("farstream-new-local-candidate",
"stream", FS_TYPE_STREAM, self,
"candidate", FS_TYPE_CANDIDATE, candidate,
NULL)));
gst_object_unref (conf);
g_object_unref (session);
}
static gboolean
gst_hls_demux_change_playlist (GstHLSDemux * demux, gboolean is_fast)
{
GList *list;
GstStructure *s;
if (is_fast)
list = g_list_next (demux->client->main->current_variant);
else
list = g_list_previous (demux->client->main->current_variant);
/* Don't do anything else if the playlist is the same */
if (!list || list->data == demux->client->current)
return TRUE;
demux->client->main->current_variant = list;
gst_m3u8_client_set_current (demux->client, list->data);
gst_hls_demux_update_playlist (demux, TRUE);
GST_INFO_OBJECT (demux, "Client is %s, switching to bitrate %d",
is_fast ? "fast" : "slow", demux->client->current->bandwidth);
s = gst_structure_new ("playlist",
"uri", G_TYPE_STRING, demux->client->current->uri,
"bitrate", G_TYPE_INT, demux->client->current->bandwidth, NULL);
gst_element_post_message (GST_ELEMENT_CAST (demux),
gst_message_new_element (GST_OBJECT_CAST (demux), s));
/* Force typefinding since we might have changed media type */
demux->do_typefind = TRUE;
return TRUE;
}
static GstFlowReturn
gst_gdk_pixbuf_sink_handle_buffer (GstBaseSink * basesink, GstBuffer * buf,
const gchar * msg_name)
{
GstGdkPixbufSink *sink;
GdkPixbuf *pixbuf;
gboolean do_post;
sink = GST_GDK_PIXBUF_SINK (basesink);
pixbuf = gst_gdk_pixbuf_sink_get_pixbuf_from_buffer (sink, buf);
GST_OBJECT_LOCK (sink);
do_post = sink->post_messages;
if (sink->last_pixbuf)
g_object_unref (sink->last_pixbuf);
sink->last_pixbuf = pixbuf; /* take ownership */
GST_OBJECT_UNLOCK (sink);
if (G_UNLIKELY (pixbuf == NULL))
goto error;
if (do_post) {
GstStructure *s;
GstMessage *msg;
/* it's okay to keep using pixbuf here, we can be sure no one is going to
* unref or change sink->last_pixbuf before we return from this function.
* The structure will take its own ref to the pixbuf. */
s = gst_structure_new (msg_name,
"pixbuf", GDK_TYPE_PIXBUF, pixbuf,
"pixel-aspect-ratio", GST_TYPE_FRACTION, sink->par_d, sink->par_n,
NULL);
msg = gst_message_new_element (GST_OBJECT_CAST (sink), s);
gst_element_post_message (GST_ELEMENT_CAST (sink), msg);
}
g_object_notify (G_OBJECT (sink), "last-pixbuf");
return GST_FLOW_OK;
/* ERRORS */
error:
{
/* This shouldn't really happen */
GST_ELEMENT_ERROR (sink, LIBRARY, FAILED,
("Couldn't create pixbuf from RGB image."),
("Probably not enough free memory"));
return GST_FLOW_ERROR;
}
}
static GstMessage *
gst_aubio_tempo_message_new(GstAubioTempo *a, GstClockTime beat)
{
GstStructure *s;
s = gst_structure_new("aubiotempo",
"beat", GST_TYPE_CLOCK_TIME, beat ,
"bpm" , G_TYPE_DOUBLE , a->bpm,
NULL);
return gst_message_new_element (GST_OBJECT (a), s);
}
static GstMessage *
gst_cutter_message_new (GstCutter * c, gboolean above, GstClockTime timestamp)
{
GstStructure *s;
s = gst_structure_new ("cutter",
"above", G_TYPE_BOOLEAN, above,
"timestamp", GST_TYPE_CLOCK_TIME, timestamp, NULL);
return gst_message_new_element (GST_OBJECT (c), s);
}
static void
gst_identity_check_imperfect_timestamp (GstIdentity * identity, GstBuffer * buf)
{
GstClockTime timestamp = GST_BUFFER_TIMESTAMP (buf);
/* invalid timestamp drops us out of check. FIXME: maybe warn ? */
if (timestamp != GST_CLOCK_TIME_NONE) {
/* check if we had a previous buffer to compare to */
if (identity->prev_timestamp != GST_CLOCK_TIME_NONE &&
identity->prev_duration != GST_CLOCK_TIME_NONE) {
GstClockTime t_expected;
GstClockTimeDiff dt;
t_expected = identity->prev_timestamp + identity->prev_duration;
dt = GST_CLOCK_DIFF (t_expected, timestamp);
if (dt != 0) {
/*
* "imperfect-timestamp" bus message:
* @identity: the identity instance
* @delta: the GST_CLOCK_DIFF to the prev timestamp
* @prev-timestamp: the previous buffer timestamp
* @prev-duration: the previous buffer duration
* @prev-offset: the previous buffer offset
* @prev-offset-end: the previous buffer offset end
* @cur-timestamp: the current buffer timestamp
* @cur-duration: the current buffer duration
* @cur-offset: the current buffer offset
* @cur-offset-end: the current buffer offset end
*
* This bus message gets emitted if the check-imperfect-timestamp
* property is set and there is a gap in time between the
* last buffer and the newly received buffer.
*/
gst_element_post_message (GST_ELEMENT (identity),
gst_message_new_element (GST_OBJECT (identity),
gst_structure_new ("imperfect-timestamp",
"delta", G_TYPE_INT64, dt,
"prev-timestamp", G_TYPE_UINT64,
identity->prev_timestamp, "prev-duration", G_TYPE_UINT64,
identity->prev_duration, "prev-offset", G_TYPE_UINT64,
identity->prev_offset, "prev-offset-end", G_TYPE_UINT64,
identity->prev_offset_end, "cur-timestamp", G_TYPE_UINT64,
timestamp, "cur-duration", G_TYPE_UINT64,
GST_BUFFER_DURATION (buf), "cur-offset", G_TYPE_UINT64,
GST_BUFFER_OFFSET (buf), "cur-offset-end", G_TYPE_UINT64,
GST_BUFFER_OFFSET_END (buf), NULL)));
}
} else {
GST_DEBUG_OBJECT (identity, "can't check data-contiguity, no "
"offset_end was set on previous buffer");
}
}
}
static void
gst_compare_buffers (GstCompare * comp, GstBuffer * buf1, GstCaps * caps1,
GstBuffer * buf2, GstCaps * caps2)
{
gdouble delta = 0;
gsize size1, size2;
/* first check metadata */
gst_compare_meta (comp, buf1, caps1, buf2, caps2);
size1 = gst_buffer_get_size (buf1);
size2 = gst_buffer_get_size (buf1);
/* check content according to method */
/* but at least size should match */
if (size1 != size2) {
delta = comp->threshold + 1;
} else {
GstMapInfo map1, map2;
gst_buffer_map (buf1, &map1, GST_MAP_READ);
gst_buffer_map (buf2, &map2, GST_MAP_READ);
GST_MEMDUMP_OBJECT (comp, "buffer 1", map1.data, map2.size);
GST_MEMDUMP_OBJECT (comp, "buffer 2", map2.data, map2.size);
gst_buffer_unmap (buf1, &map1);
gst_buffer_unmap (buf2, &map2);
switch (comp->method) {
case GST_COMPARE_METHOD_MEM:
delta = gst_compare_mem (comp, buf1, caps1, buf2, caps2);
break;
case GST_COMPARE_METHOD_MAX:
delta = gst_compare_max (comp, buf1, caps1, buf2, caps2);
break;
case GST_COMPARE_METHOD_SSIM:
delta = gst_compare_ssim (comp, buf1, caps1, buf2, caps2);
break;
default:
g_assert_not_reached ();
break;
}
}
if ((comp->upper && delta > comp->threshold) ||
(!comp->upper && delta < comp->threshold)) {
GST_WARNING_OBJECT (comp, "buffers %p and %p failed content match %f",
buf1, buf2, delta);
gst_element_post_message (GST_ELEMENT (comp),
gst_message_new_element (GST_OBJECT (comp),
gst_structure_new ("delta", "content", G_TYPE_DOUBLE, delta,
NULL)));
}
}
static void
kms_crowd_detector_send_message_direction (KmsCrowdDetector * crowddetector,
double angle, int curve)
{
GstStructure *s;
GstMessage *m;
s = gst_structure_new ("direction-event",
"roi", G_TYPE_STRING, crowddetector->priv->rois_data[curve].name,
"direction_angle", G_TYPE_DOUBLE, angle, NULL);
m = gst_message_new_element (GST_OBJECT (crowddetector), s);
gst_element_post_message (GST_ELEMENT (crowddetector), m);
}
static GInputStream *
gst_gio_src_get_stream (GstGioBaseSrc * bsrc)
{
GstGioSrc *src = GST_GIO_SRC (bsrc);
GError *err = NULL;
GInputStream *stream;
GCancellable *cancel = bsrc->cancel;
gchar *uri = NULL;
if (src->file == NULL) {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("No location or GFile given"));
return NULL;
}
uri = g_file_get_uri (src->file);
if (!uri)
uri = g_strdup ("(null)");
stream = G_INPUT_STREAM (g_file_read (src->file, cancel, &err));
if (stream == NULL && !gst_gio_error (src, "g_file_read", &err, NULL)) {
if (GST_GIO_ERROR_MATCHES (err, NOT_FOUND)) {
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL),
("Could not open location %s for reading: %s", uri, err->message));
} else if (GST_GIO_ERROR_MATCHES (err, NOT_MOUNTED)) {
gst_element_post_message (GST_ELEMENT_CAST (src),
gst_message_new_element (GST_OBJECT_CAST (src),
gst_structure_new ("not-mounted", "file", G_TYPE_FILE, src->file,
"uri", G_TYPE_STRING, uri, NULL)));
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Location %s not mounted: %s", uri, err->message));
} else {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Could not open location %s for reading: %s", uri, err->message));
}
g_free (uri);
g_clear_error (&err);
return NULL;
} else if (stream == NULL) {
g_free (uri);
return NULL;
}
GST_DEBUG_OBJECT (src, "opened location %s", uri);
g_free (uri);
return stream;
}
/**
* gst_video_overlay_prepare_window_handle:
* @overlay: a #GstVideoOverlay which does not yet have an Window handle set
*
* This will post a "prepare-window-handle" element message on the bus
* to give applications an opportunity to call
* gst_video_overlay_set_window_handle() before a plugin creates its own
* window.
*
* This function should only be used by video overlay plugin developers.
*/
void
gst_video_overlay_prepare_window_handle (GstVideoOverlay * overlay)
{
GstStructure *s;
GstMessage *msg;
g_return_if_fail (overlay != NULL);
g_return_if_fail (GST_IS_VIDEO_OVERLAY (overlay));
GST_LOG_OBJECT (GST_OBJECT (overlay), "prepare window handle");
s = gst_structure_new_empty ("prepare-window-handle");
msg = gst_message_new_element (GST_OBJECT (overlay), s);
gst_element_post_message (GST_ELEMENT (overlay), msg);
}
/**
* gst_x_overlay_prepare_xwindow_id:
* @overlay: a #GstXOverlay which does not yet have an XWindow.
*
* This will post a "prepare-xwindow-id" element message on the bus
* to give applications an opportunity to call
* gst_x_overlay_set_xwindow_id() before a plugin creates its own
* window.
*
* This function should only be used by video overlay plugin developers.
*/
void
gst_x_overlay_prepare_xwindow_id (GstXOverlay * overlay)
{
GstStructure *s;
GstMessage *msg;
g_return_if_fail (overlay != NULL);
g_return_if_fail (GST_IS_X_OVERLAY (overlay));
GST_LOG_OBJECT (GST_OBJECT (overlay), "prepare xwindow_id");
s = gst_structure_new ("prepare-xwindow-id", NULL);
msg = gst_message_new_element (GST_OBJECT (overlay), s);
gst_element_post_message (GST_ELEMENT (overlay), msg);
}
static void
gst_sphinx_sink_send_message (GstSphinxSink *sphinxsink, gchar *message, gchar *text)
{
GstStructure *s;
GstMessage *msg;
if (text)
s = gst_structure_new (message, "text", G_TYPE_STRING, text, NULL);
else
s = gst_structure_new (message, NULL);
msg = gst_message_new_element (GST_OBJECT (sphinxsink), s);
gst_element_post_message (GST_ELEMENT (sphinxsink), msg);
}
/*
* When an ieee1394 bus reset happens, usually a device has been removed
* or added. We send a message on the message bus with the node count
* and whether the capture device used in this element connected, disconnected
* or was unchanged
* Message structure:
* nodecount - integer with number of nodes on bus
* current-device-change - integer (1 if device connected, 0 if no change to
* current device status, -1 if device disconnected)
*/
static int
gst_hdv1394src_bus_reset (raw1394handle_t handle, unsigned int generation)
{
GstHDV1394Src *src;
gint nodecount;
GstMessage *message;
GstStructure *structure;
gint current_device_change;
gint i;
src = gst_hdv1394src_from_raw1394handle (handle);
GST_INFO_OBJECT (src, "have bus reset");
/* update generation - told to do so by docs */
raw1394_update_generation (handle, generation);
nodecount = raw1394_get_nodecount (handle);
/* allocate memory for portinfo */
/* current_device_change is -1 if camera disconnected, 0 if other device
* connected or 1 if camera has now connected */
current_device_change = -1;
for (i = 0; i < nodecount; i++) {
if (src->guid == rom1394_get_guid (handle, i)) {
/* Camera is with us */
GST_DEBUG ("Camera is with us");
if (!src->connected) {
current_device_change = 1;
src->connected = TRUE;
} else
current_device_change = 0;
}
}
if (src->connected && current_device_change == -1) {
GST_DEBUG ("Camera has disconnected");
src->connected = FALSE;
} else if (!src->connected && current_device_change == -1) {
GST_DEBUG ("Camera is still not with us");
current_device_change = 0;
}
structure = gst_structure_new ("ieee1394-bus-reset", "nodecount", G_TYPE_INT,
nodecount, "current-device-change", G_TYPE_INT, current_device_change,
NULL);
message = gst_message_new_element (GST_OBJECT (src), structure);
gst_element_post_message (GST_ELEMENT (src), message);
return 0;
}
static void
kms_crowd_detector_send_message_fluidity (KmsCrowdDetector * crowddetector,
double fluidity_percentage, int curve)
{
GstStructure *s;
GstMessage *m;
s = gst_structure_new ("fluidity-event",
"roi", G_TYPE_STRING, crowddetector->priv->rois_data[curve].name,
"fluidity_percentage", G_TYPE_DOUBLE, fluidity_percentage,
"fluidity_level", G_TYPE_INT,
crowddetector->priv->rois_data[curve].actual_fluidity_level, NULL);
m = gst_message_new_element (GST_OBJECT (crowddetector), s);
gst_element_post_message (GST_ELEMENT (crowddetector), m);
}
/**
* gst_x_overlay_got_xwindow_id:
* @overlay: a #GstXOverlay which got a XWindow.
* @xwindow_id: a #XID referencing the XWindow.
*
* This will post a "have-xwindow-id" element message on the bus.
*
* This function should only be used by video overlay plugin developers.
*/
void
gst_x_overlay_got_xwindow_id (GstXOverlay * overlay, gulong xwindow_id)
{
GstStructure *s;
GstMessage *msg;
g_return_if_fail (overlay != NULL);
g_return_if_fail (GST_IS_X_OVERLAY (overlay));
GST_LOG_OBJECT (GST_OBJECT (overlay), "xwindow_id = %lu", xwindow_id);
s = gst_structure_new ("have-xwindow-id", "xwindow-id", G_TYPE_ULONG,
xwindow_id, NULL);
msg = gst_message_new_element (GST_OBJECT (overlay), s);
gst_element_post_message (GST_ELEMENT (overlay), msg);
}
static GstMessage *
gst_spectrum_message_new (GstSpectrum * spectrum, GstClockTime endtime)
{
GstStructure *s;
GValue v = { 0, };
GValue *l;
guint i;
gfloat *spect_magnitude = spectrum->spect_magnitude;
gfloat *spect_phase = spectrum->spect_phase;
GST_DEBUG_OBJECT (spectrum, "preparing message, spect = %p, bands =%d ",
spect_magnitude, spectrum->bands);
s = gst_structure_new ("spectrum", "endtime", GST_TYPE_CLOCK_TIME,
endtime, NULL);
if (spectrum->message_magnitude) {
g_value_init (&v, GST_TYPE_LIST);
/* will copy-by-value */
gst_structure_set_value (s, "magnitude", &v);
g_value_unset (&v);
g_value_init (&v, G_TYPE_FLOAT);
l = (GValue *) gst_structure_get_value (s, "magnitude");
for (i = 0; i < spectrum->bands; i++) {
g_value_set_float (&v, spect_magnitude[i]);
gst_value_list_append_value (l, &v); /* copies by value */
}
g_value_unset (&v);
}
if (spectrum->message_phase) {
g_value_init (&v, GST_TYPE_LIST);
/* will copy-by-value */
gst_structure_set_value (s, "phase", &v);
g_value_unset (&v);
g_value_init (&v, G_TYPE_FLOAT);
l = (GValue *) gst_structure_get_value (s, "phase");
for (i = 0; i < spectrum->bands; i++) {
g_value_set_float (&v, spect_phase[i]);
gst_value_list_append_value (l, &v); /* copies by value */
}
g_value_unset (&v);
}
return gst_message_new_element (GST_OBJECT (spectrum), s);
}
static GstFlowReturn
gst_dvbsrc_create (GstPushSrc * element, GstBuffer ** buf)
{
gint buffer_size;
GstFlowReturn retval = GST_FLOW_ERROR;
GstDvbSrc *object;
object = GST_DVBSRC (element);
GST_LOG ("fd_dvr: %d", object->fd_dvr);
//g_object_get(G_OBJECT(object), "blocksize", &buffer_size, NULL);
buffer_size = DEFAULT_BUFFER_SIZE;
/* device can not be tuned during read */
g_mutex_lock (object->tune_mutex);
if (object->fd_dvr > -1) {
/* --- Read TS from DVR device --- */
GST_DEBUG_OBJECT (object, "Reading from DVR device");
*buf = read_device (object->fd_dvr, object->adapter_number,
object->frontend_number, buffer_size, object);
if (*buf != NULL) {
GstCaps *caps;
retval = GST_FLOW_OK;
caps = gst_pad_get_caps (GST_BASE_SRC_PAD (object));
gst_buffer_set_caps (*buf, caps);
gst_caps_unref (caps);
} else {
GST_DEBUG_OBJECT (object, "Failed to read from device");
gst_element_post_message (GST_ELEMENT_CAST (object),
gst_message_new_element (GST_OBJECT (object),
gst_structure_empty_new ("dvb-read-failure")));
}
if (object->stats_interval != 0 &&
++object->stats_counter == object->stats_interval) {
gst_dvbsrc_output_frontend_stats (object);
object->stats_counter = 0;
}
}
g_mutex_unlock (object->tune_mutex);
return retval;
}
