EXPORT_C
#endif
GstPad *
gst_ghost_pad_new (const gchar * name, GstPad * target)
{
GstPad *ret;
g_return_val_if_fail (GST_IS_PAD (target), NULL);
g_return_val_if_fail (!gst_pad_is_linked (target), NULL);
GST_LOG ("name:%s, target:%s:%s", GST_STR_NULL (name),
GST_DEBUG_PAD_NAME (target));
if ((ret = gst_ghost_pad_new_no_target (name, GST_PAD_DIRECTION (target))))
if (!gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (ret), target))
goto set_target_failed;
return ret;
/* ERRORS */
set_target_failed:
{
GST_WARNING_OBJECT (ret, "failed to set target %s:%s",
GST_DEBUG_PAD_NAME (target));
gst_object_unref (ret);
return NULL;
}
}
GstPad *
gst_ghost_pad_new_from_template (const gchar * name, GstPad * target,
GstPadTemplate * templ)
{
GstPad *ret;
g_return_val_if_fail (GST_IS_PAD (target), NULL);
g_return_val_if_fail (!gst_pad_is_linked (target), NULL);
g_return_val_if_fail (templ != NULL, NULL);
g_return_val_if_fail (GST_PAD_TEMPLATE_DIRECTION (templ) ==
GST_PAD_DIRECTION (target), NULL);
GST_LOG ("name:%s, target:%s:%s, templ:%p", GST_STR_NULL (name),
GST_DEBUG_PAD_NAME (target), templ);
if ((ret = gst_ghost_pad_new_full (name, GST_PAD_DIRECTION (target), templ)))
if (!gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (ret), target))
goto set_target_failed;
return ret;
/* ERRORS */
set_target_failed:
{
GST_WARNING_OBJECT (ret, "failed to set target %s:%s",
GST_DEBUG_PAD_NAME (target));
gst_object_unref (ret);
return NULL;
}
}
static void
new_decoded_pad_cb(GstElement *demuxer,
GstPad *new_pad,
gpointer user_data)
{
GstElement *decoder;
GstPad *pad;
GstCaps *caps;
gchar *str;
caps = gst_pad_get_caps(new_pad);
str = gst_caps_to_string(caps);
if (g_str_has_prefix(str, "video/"))
{
decoder = GST_ELEMENT(user_data);
pad = gst_element_get_pad(decoder, "sink");
if (GST_PAD_LINK_FAILED(gst_pad_link(new_pad, pad)))
{
g_warning("Failed to link %s:%s to %s:%s", GST_DEBUG_PAD_NAME(new_pad),
GST_DEBUG_PAD_NAME(pad));
}
}
g_free(str);
gst_caps_unref(caps);
}
/**
* gst_video_get_size:
* @pad: pointer to a #GstPad
* @width: pointer to integer to hold pixel width of the video frames (output)
* @height: pointer to integer to hold pixel height of the video frames (output)
*
* Inspect the caps of the provided pad and retrieve the width and height of
* the video frames it is configured for.
*
* The pad needs to have negotiated caps containing width and height properties.
*
* Returns: TRUE if the width and height could be retrieved.
*
*/
gboolean
gst_video_get_size (GstPad * pad, gint * width, gint * height)
{
const GstCaps *caps = NULL;
GstStructure *structure;
gboolean ret;
g_return_val_if_fail (pad != NULL, FALSE);
g_return_val_if_fail (width != NULL, FALSE);
g_return_val_if_fail (height != NULL, FALSE);
caps = GST_PAD_CAPS (pad);
if (caps == NULL) {
g_warning ("gstvideo: failed to get caps of pad %s:%s",
GST_DEBUG_PAD_NAME (pad));
return FALSE;
}
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "width", width);
ret &= gst_structure_get_int (structure, "height", height);
if (!ret) {
g_warning ("gstvideo: failed to get size properties on pad %s:%s",
GST_DEBUG_PAD_NAME (pad));
return FALSE;
}
GST_DEBUG ("size request on pad %s:%s: %dx%d",
GST_DEBUG_PAD_NAME (pad), width ? *width : -1, height ? *height : -1);
return TRUE;
}
static GstCaps *
rsn_stream_selector_getcaps (GstPad * pad)
{
GstPad *otherpad;
GstObject *parent;
GstCaps *caps;
otherpad = rsn_stream_selector_get_linked_pad (pad, FALSE);
parent = gst_object_get_parent (GST_OBJECT (pad));
if (!otherpad) {
GST_DEBUG_OBJECT (parent,
"Pad %s:%s not linked, returning ANY", GST_DEBUG_PAD_NAME (pad));
caps = gst_caps_new_any ();
} else {
GST_DEBUG_OBJECT (parent,
"Pad %s:%s is linked (to %s:%s), returning peer caps",
GST_DEBUG_PAD_NAME (pad), GST_DEBUG_PAD_NAME (otherpad));
/* if the peer has caps, use those. If the pad is not linked, this function
* returns NULL and we return ANY */
if (!(caps = gst_pad_peer_get_caps (otherpad)))
caps = gst_caps_new_any ();
gst_object_unref (otherpad);
}
gst_object_unref (parent);
return caps;
}
static GstFlowReturn
gst_selector_pad_chain (GstPad * pad, GstBuffer * buf)
{
RsnStreamSelector *sel;
GstFlowReturn res;
GstPad *active_sinkpad;
RsnSelectorPad *selpad;
GstClockTime timestamp;
GstSegment *seg;
sel = RSN_STREAM_SELECTOR (gst_pad_get_parent (pad));
selpad = GST_SELECTOR_PAD_CAST (pad);
seg = &selpad->segment;
active_sinkpad = rsn_stream_selector_get_active (sel, pad);
timestamp = GST_BUFFER_TIMESTAMP (buf);
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
GST_DEBUG_OBJECT (sel, "received timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));
gst_segment_set_last_stop (seg, seg->format, timestamp);
}
/* Ignore buffers from pads except the selected one */
if (pad != active_sinkpad)
goto ignore;
/* if we have a pending segment, push it out now */
if (selpad->segment_pending) {
gst_pad_push_event (sel->srcpad, gst_event_new_new_segment_full (FALSE,
seg->rate, seg->applied_rate, seg->format, seg->start, seg->stop,
seg->time));
selpad->segment_pending = FALSE;
}
/* forward */
GST_DEBUG_OBJECT (sel, "Forwarding buffer %p from pad %s:%s", buf,
GST_DEBUG_PAD_NAME (pad));
res = gst_pad_push (sel->srcpad, buf);
done:
gst_object_unref (sel);
return res;
/* dropped buffers */
ignore:
{
GST_DEBUG_OBJECT (sel, "Ignoring buffer %p from pad %s:%s",
buf, GST_DEBUG_PAD_NAME (pad));
gst_buffer_unref (buf);
res = GST_FLOW_NOT_LINKED;
goto done;
}
}
static gint
_demux_get_writer_id (GstIndex * index, GstPad * pad)
{
gint id;
if (!gst_index_get_writer_id (index, GST_OBJECT (pad), &id)) {
GST_WARNING_OBJECT (index,
"can't get index id for %s:%s", GST_DEBUG_PAD_NAME (pad));
return -1;
} else {
GST_LOG_OBJECT (index,
"got index id %d for %s:%s", id, GST_DEBUG_PAD_NAME (pad));
return id;
}
}
/* FIXME, we can do this in the _chain functions */
guint
gst_collect_pads_available (GstCollectPads * pads)
{
GSList *collected;
guint result = G_MAXUINT;
g_return_val_if_fail (pads != NULL, 0);
g_return_val_if_fail (GST_IS_COLLECT_PADS (pads), 0);
for (collected = pads->data; collected; collected = g_slist_next (collected)) {
GstCollectData *pdata;
GstBuffer *buffer;
gint size;
pdata = (GstCollectData *) collected->data;
/* ignore pad with EOS */
if (G_UNLIKELY (pdata->abidata.ABI.eos)) {
GST_DEBUG ("pad %s:%s is EOS", GST_DEBUG_PAD_NAME (pdata->pad));
continue;
}
/* an empty buffer without EOS is weird when we get here.. */
if (G_UNLIKELY ((buffer = pdata->buffer) == NULL)) {
GST_WARNING ("pad %s:%s has no buffer", GST_DEBUG_PAD_NAME (pdata->pad));
goto not_filled;
}
/* this is the size left of the buffer */
size = GST_BUFFER_SIZE (buffer) - pdata->pos;
GST_DEBUG ("pad %s:%s has %d bytes left",
GST_DEBUG_PAD_NAME (pdata->pad), size);
/* need to return the min of all available data */
if (size < result)
result = size;
}
/* nothing changed, all must be EOS then, return 0 */
if (G_UNLIKELY (result == G_MAXUINT))
result = 0;
return result;
not_filled:
{
return 0;
}
}
static void
pad_added_cb (GstElement * uridecodebin, GstPad * pad, GstElement * encodebin)
{
GstPad *sinkpad;
sinkpad = gst_element_get_compatible_pad (encodebin, pad, NULL);
if (sinkpad == NULL) {
GstCaps *caps;
/* Ask encodebin for a compatible pad */
caps = gst_pad_query_caps (pad, NULL);
g_signal_emit_by_name (encodebin, "request-pad", caps, &sinkpad);
if (caps)
gst_caps_unref (caps);
}
if (sinkpad == NULL) {
g_print ("Couldn't get an encoding channel for pad %s:%s\n",
GST_DEBUG_PAD_NAME (pad));
return;
}
if (G_UNLIKELY (gst_pad_link (pad, sinkpad) != GST_PAD_LINK_OK)) {
g_print ("Couldn't link pads\n");
}
return;
}
static void
_rtpbin_pad_added (GstElement *rtpbin, GstPad *new_pad,
gpointer user_data)
{
FsRtpConference *self = FS_RTP_CONFERENCE (user_data);
gchar *name;
GST_DEBUG_OBJECT (self, "pad %s:%s added", GST_DEBUG_PAD_NAME (new_pad));
name = gst_pad_get_name (new_pad);
if (g_str_has_prefix (name, "recv_rtp_src_"))
{
guint session_id, ssrc, pt;
if (sscanf (name, "recv_rtp_src_%u_%u_%u",
&session_id, &ssrc, &pt) == 3 && ssrc <= G_MAXUINT32)
{
FsRtpSession *session =
fs_rtp_conference_get_session_by_id (self, session_id);
if (session)
{
fs_rtp_session_new_recv_pad (session, new_pad, ssrc, pt);
g_object_unref (session);
}
}
}
g_free (name);
}
static GstPad *
gst_funnel_request_new_pad (GstElement * element, GstPadTemplate * templ,
const gchar * name, const GstCaps * caps)
{
GstPad *sinkpad;
GST_DEBUG_OBJECT (element, "requesting pad");
sinkpad = GST_PAD_CAST (g_object_new (GST_TYPE_FUNNEL_PAD,
"name", name, "direction", templ->direction, "template", templ,
NULL));
gst_pad_set_chain_function (sinkpad,
GST_DEBUG_FUNCPTR (gst_funnel_sink_chain));
gst_pad_set_chain_list_function (sinkpad,
GST_DEBUG_FUNCPTR (gst_funnel_sink_chain_list));
gst_pad_set_event_function (sinkpad,
GST_DEBUG_FUNCPTR (gst_funnel_sink_event));
GST_OBJECT_FLAG_SET (sinkpad, GST_PAD_FLAG_PROXY_CAPS);
GST_OBJECT_FLAG_SET (sinkpad, GST_PAD_FLAG_PROXY_ALLOCATION);
gst_pad_set_active (sinkpad, TRUE);
gst_element_add_pad (element, sinkpad);
GST_DEBUG_OBJECT (element, "requested pad %s:%s",
GST_DEBUG_PAD_NAME (sinkpad));
return sinkpad;
}
static gboolean
gst_interleave_sink_event (GstPad * pad, GstEvent * event)
{
GstInterleave *self = GST_INTERLEAVE (gst_pad_get_parent (pad));
gboolean ret;
GST_DEBUG ("Got %s event on pad %s:%s", GST_EVENT_TYPE_NAME (event),
GST_DEBUG_PAD_NAME (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_STOP:
/* mark a pending new segment. This event is synchronized
* with the streaming thread so we can safely update the
* variable without races. It's somewhat weird because we
* assume the collectpads forwarded the FLUSH_STOP past us
* and downstream (using our source pad, the bastard!).
*/
self->segment_pending = TRUE;
break;
default:
break;
}
/* now GstCollectPads can take care of the rest, e.g. EOS */
ret = self->collect_event (pad, event);
gst_object_unref (self);
return ret;
}
static void
gst_funnel_release_pad (GstElement * element, GstPad * pad)
{
GstFunnel *funnel = GST_FUNNEL (element);
GstFunnelPad *fpad = GST_FUNNEL_PAD_CAST (pad);
gboolean got_eos;
gboolean send_eos = FALSE;
GST_DEBUG_OBJECT (funnel, "releasing pad %s:%s", GST_DEBUG_PAD_NAME (pad));
gst_pad_set_active (pad, FALSE);
got_eos = fpad->got_eos;
gst_element_remove_pad (GST_ELEMENT_CAST (funnel), pad);
GST_OBJECT_LOCK (funnel);
if (!got_eos && gst_funnel_all_sinkpads_eos_unlocked (funnel, NULL)) {
GST_DEBUG_OBJECT (funnel, "Pad removed. All others are EOS. Sending EOS");
send_eos = TRUE;
}
GST_OBJECT_UNLOCK (funnel);
if (send_eos)
if (!gst_pad_push_event (funnel->srcpad, gst_event_new_eos ()))
GST_WARNING_OBJECT (funnel, "Failure pushing EOS");
}
static GstStructure *
collect_stream_information (GstDiscoverer * dc, PrivateStream * ps, guint idx)
{
GstCaps *caps;
GstStructure *st;
gchar *stname;
stname = g_strdup_printf ("stream-%02d", idx);
st = gst_structure_empty_new (stname);
g_free (stname);
/* Get caps */
caps = gst_pad_get_negotiated_caps (ps->pad);
if (!caps) {
GST_WARNING ("Couldn't get negotiated caps from %s:%s",
GST_DEBUG_PAD_NAME (ps->pad));
caps = gst_pad_get_caps (ps->pad);
}
if (caps) {
GST_DEBUG ("Got caps %" GST_PTR_FORMAT, caps);
gst_structure_id_set (st, _CAPS_QUARK, GST_TYPE_CAPS, caps, NULL);
gst_caps_unref (caps);
}
if (ps->tags)
gst_structure_id_set (st, _TAGS_QUARK, GST_TYPE_STRUCTURE, ps->tags, NULL);
return st;
}
/**
* gst_camerabin_try_add_element:
* @bin: tries adding an element to this bin
* @srcpad: src pad name, or NULL for any
* @new_elem: new element to be added
* @dstpad: dst pad name, or NULL for any
*
* Adds given element to given @bin. Looks for an unconnected src pad
* (with name @srcpad, if specified) from the @bin and links the element to
* it.
*
* Returns: %TRUE if adding and linking succeeded, %FALSE otherwise.
*/
gboolean
gst_camerabin_try_add_element (GstBin * bin, const gchar * srcpad,
GstElement * new_elem, const gchar * dstpad)
{
GstPad *bin_pad;
GstElement *bin_elem;
gboolean ret = TRUE;
g_return_val_if_fail (bin, FALSE);
g_return_val_if_fail (new_elem, FALSE);
/* Get pads for linking */
bin_pad = gst_bin_find_unlinked_pad (bin, GST_PAD_SRC);
/* Add to bin */
gst_bin_add (GST_BIN (bin), new_elem);
/* Link, if unconnected pad was found, otherwise just add it to bin */
if (bin_pad) {
GST_DEBUG_OBJECT (bin, "linking %s to %s:%s", GST_OBJECT_NAME (new_elem),
GST_DEBUG_PAD_NAME (bin_pad));
bin_elem = gst_pad_get_parent_element (bin_pad);
gst_object_unref (bin_pad);
if (!gst_element_link_pads_full (bin_elem, srcpad, new_elem, dstpad,
GST_PAD_LINK_CHECK_CAPS)) {
gst_object_ref (new_elem);
gst_bin_remove (bin, new_elem);
ret = FALSE;
}
gst_object_unref (bin_elem);
} else {
GST_INFO_OBJECT (bin, "no unlinked source pad in bin");
}
return ret;
}
static gboolean
gst_proxy_pad_set_target_unlocked (GstPad * pad, GstPad * target)
{
GstPad *oldtarget;
if (target) {
GST_LOG_OBJECT (pad, "setting target %s:%s", GST_DEBUG_PAD_NAME (target));
if (G_UNLIKELY (GST_PAD_DIRECTION (pad) != GST_PAD_DIRECTION (target)))
goto wrong_direction;
} else
GST_LOG_OBJECT (pad, "clearing target");
/* clear old target */
if ((oldtarget = GST_PROXY_PAD_TARGET (pad))) {
gst_object_unref (oldtarget);
}
/* set and ref new target if any */
if (target)
GST_PROXY_PAD_TARGET (pad) = gst_object_ref (target);
else
GST_PROXY_PAD_TARGET (pad) = NULL;
return TRUE;
/* ERRORS */
wrong_direction:
{
GST_ERROR_OBJECT (pad,
"target pad doesn't have the same direction as ourself");
return FALSE;
}
}
/**
* gst_ghost_pad_set_target:
* @gpad: the #GstGhostPad
* @newtarget: (transfer none) (allow-none): the new pad target
*
* Set the new target of the ghostpad @gpad. Any existing target
* is unlinked and links to the new target are established. if @newtarget is
* %NULL the target will be cleared.
*
* Returns: (transfer full): %TRUE if the new target could be set. This function
* can return %FALSE when the internal pads could not be linked.
*/
gboolean
gst_ghost_pad_set_target (GstGhostPad * gpad, GstPad * newtarget)
{
GstPad *internal;
GstPad *oldtarget;
GstPadLinkReturn lret;
g_return_val_if_fail (GST_IS_GHOST_PAD (gpad), FALSE);
g_return_val_if_fail (GST_PAD_CAST (gpad) != newtarget, FALSE);
g_return_val_if_fail (newtarget != GST_PROXY_PAD_INTERNAL (gpad), FALSE);
GST_OBJECT_LOCK (gpad);
internal = GST_PROXY_PAD_INTERNAL (gpad);
if (newtarget)
GST_DEBUG_OBJECT (gpad, "set target %s:%s", GST_DEBUG_PAD_NAME (newtarget));
else
GST_DEBUG_OBJECT (gpad, "clearing target");
/* clear old target */
if ((oldtarget = gst_pad_get_peer (internal))) {
GST_OBJECT_UNLOCK (gpad);
/* unlink internal pad */
if (GST_PAD_IS_SRC (internal))
gst_pad_unlink (internal, oldtarget);
else
gst_pad_unlink (oldtarget, internal);
gst_object_unref (oldtarget);
} else {
GST_OBJECT_UNLOCK (gpad);
}
if (newtarget) {
/* and link to internal pad without any checks */
GST_DEBUG_OBJECT (gpad, "connecting internal pad to target %"
GST_PTR_FORMAT, newtarget);
if (GST_PAD_IS_SRC (internal))
lret =
gst_pad_link_full (internal, newtarget, GST_PAD_LINK_CHECK_NOTHING);
else
lret =
gst_pad_link_full (newtarget, internal, GST_PAD_LINK_CHECK_NOTHING);
if (lret != GST_PAD_LINK_OK)
goto link_failed;
}
return TRUE;
/* ERRORS */
link_failed:
{
GST_WARNING_OBJECT (gpad, "could not link internal and target, reason:%s",
gst_pad_link_get_name (lret));
return FALSE;
}
}
static gboolean
gst_frei0r_mixer_sink0_event (GstPad * pad, GstEvent * event)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
gboolean ret = FALSE;
GstEvent **p_ev;
GST_DEBUG ("Got %s event on pad %s:%s", GST_EVENT_TYPE_NAME (event),
GST_DEBUG_PAD_NAME (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
p_ev = &self->newseg_event;
gst_event_replace (p_ev, event);
break;
default:
break;
}
/* now GstCollectPads can take care of the rest, e.g. EOS */
ret = self->collect_event (pad, event);
gst_object_unref (self);
return ret;
}
static gboolean
gst_fake_src_event_handler (GstBaseSrc * basesrc, GstEvent * event)
{
GstFakeSrc *src;
src = GST_FAKE_SRC (basesrc);
if (!src->silent) {
const GstStructure *s;
const gchar *tstr;
gchar *sstr;
GST_OBJECT_LOCK (src);
g_free (src->last_message);
tstr = gst_event_type_get_name (GST_EVENT_TYPE (event));
if ((s = gst_event_get_structure (event)))
sstr = gst_structure_to_string (s);
else
sstr = g_strdup ("");
src->last_message =
g_strdup_printf ("event ******* (%s:%s) E (type: %s (%d), %s) %p",
GST_DEBUG_PAD_NAME (GST_BASE_SRC_CAST (src)->srcpad),
tstr, GST_EVENT_TYPE (event), sstr, event);
g_free (sstr);
GST_OBJECT_UNLOCK (src);
g_object_notify_by_pspec ((GObject *) src, pspec_last_message);
}
return GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
}
EXPORT_C
#endif
int
gst_audio_frame_byte_size (GstPad * pad)
{
/* FIXME: this should be moved closer to the gstreamer core
* and be implemented for every mime type IMO
*/
int width = 0;
int channels = 0;
const GstCaps *caps = NULL;
GstStructure *structure;
/* get caps of pad */
caps = GST_PAD_CAPS (pad);
if (caps == NULL) {
/* ERROR: could not get caps of pad */
g_warning ("gstaudio: could not get caps of pad %s:%s\n",
GST_DEBUG_PAD_NAME (pad));
return 0;
}
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "width", &width);
gst_structure_get_int (structure, "channels", &channels);
return (width / 8) * channels;
}
static void gst_log_android_handler(GstDebugCategory *category,
GstDebugLevel level,
const gchar *file,
const gchar *function,
gint line,
GObject *object,
GstDebugMessage *message,
gpointer data)
{
gchar *obj = NULL;
OWR_UNUSED(data);
if (level > gst_debug_category_get_threshold(category))
return;
if (GST_IS_PAD(object) && GST_OBJECT_NAME(object)) {
obj = g_strdup_printf("<%s:%s>", GST_DEBUG_PAD_NAME(object));
} else if (GST_IS_OBJECT(object)) {
obj = g_strdup_printf("<%s>", GST_OBJECT_NAME(object));
}
__android_log_print(ANDROID_LOG_INFO, "gst_log", "%p %s %s %s:%d:%s:%s %s\n",
(void *)g_thread_self(),
gst_debug_level_get_name(level), gst_debug_category_get_name(category),
file, line, function, obj ? obj : "", gst_debug_message_get(message));
g_free(obj);
}
static void
gst_identity_update_last_message_for_buffer (GstIdentity * identity,
const gchar * action, GstBuffer * buf, gsize size)
{
gchar dts_str[64], pts_str[64], dur_str[64];
gchar *flag_str;
GST_OBJECT_LOCK (identity);
flag_str = gst_buffer_get_flags_string (buf);
g_free (identity->last_message);
identity->last_message = g_strdup_printf ("%s ******* (%s:%s) "
"(%" G_GSIZE_FORMAT " bytes, dts: %s, pts:%s, duration: %s, offset: %"
G_GINT64_FORMAT ", " "offset_end: % " G_GINT64_FORMAT
", flags: %08x %s) %p", action,
GST_DEBUG_PAD_NAME (GST_BASE_TRANSFORM_CAST (identity)->sinkpad), size,
print_pretty_time (dts_str, sizeof (dts_str), GST_BUFFER_DTS (buf)),
print_pretty_time (pts_str, sizeof (pts_str), GST_BUFFER_PTS (buf)),
print_pretty_time (dur_str, sizeof (dur_str), GST_BUFFER_DURATION (buf)),
GST_BUFFER_OFFSET (buf), GST_BUFFER_OFFSET_END (buf),
GST_BUFFER_FLAGS (buf), flag_str, buf);
g_free (flag_str);
GST_OBJECT_UNLOCK (identity);
gst_identity_notify_last_message (identity);
}
static GstPad *
gst_dtls_dec_request_new_pad (GstElement * element,
GstPadTemplate * tmpl, const gchar * name, const GstCaps * caps)
{
GstDtlsDec *self = GST_DTLS_DEC (element);
GstPad *pad;
GST_DEBUG_OBJECT (element, "requesting pad");
g_return_val_if_fail (!self->src, NULL);
g_return_val_if_fail (tmpl->direction == GST_PAD_SRC, NULL);
g_mutex_lock (&self->src_mutex);
if (self->src) {
GST_ERROR_OBJECT (self, "Pad %s:%s exists already",
GST_DEBUG_PAD_NAME (self->src));
g_mutex_unlock (&self->src_mutex);
return NULL;
}
self->src = pad = gst_pad_new_from_template (tmpl, name);
gst_object_ref (pad);
g_mutex_unlock (&self->src_mutex);
gst_pad_set_active (pad, TRUE);
if (caps)
gst_pad_set_caps (pad, (GstCaps *) caps);
gst_element_add_pad (element, pad);
gst_object_unref (pad);
return pad;
}
/**
* gst_camerabin_try_add_element:
* @bin: tries adding an element to this bin
* @new_elem: new element to be added
*
* Adds given element to given @bin. Looks for an unconnected src pad
* from the @bin and links the element to it.
*
* Returns: %TRUE if adding and linking succeeded, %FALSE otherwise.
*/
gboolean
gst_camerabin_try_add_element (GstBin * bin, GstElement * new_elem)
{
GstPad *bin_pad;
GstElement *bin_elem;
gboolean ret = TRUE;
if (!bin || !new_elem) {
return FALSE;
}
/* Get pads for linking */
bin_pad = gst_bin_find_unlinked_pad (bin, GST_PAD_SRC);
/* Add to bin */
gst_bin_add (GST_BIN (bin), new_elem);
/* Link, if unconnected pad was found, otherwise just add it to bin */
if (bin_pad) {
GST_DEBUG_OBJECT (bin, "linking %s to %s:%s", GST_OBJECT_NAME (new_elem),
GST_DEBUG_PAD_NAME (bin_pad));
bin_elem = gst_pad_get_parent_element (bin_pad);
gst_object_unref (bin_pad);
if (!gst_element_link (bin_elem, new_elem)) {
gst_bin_remove (bin, new_elem);
ret = FALSE;
}
gst_object_unref (bin_elem);
} else {
GST_INFO_OBJECT (bin, "no unlinked source pad in bin");
}
return ret;
}
static gboolean
gst_ghost_pad_activate_pull_default (GstPad * pad, GstObject * parent,
gboolean active)
{
gboolean ret;
GstPad *other;
GST_LOG_OBJECT (pad, "%sactivate pull on %s:%s", (active ? "" : "de"),
GST_DEBUG_PAD_NAME (pad));
if (GST_PAD_DIRECTION (pad) == GST_PAD_SRC) {
/* the ghostpad is SRC and activated in pull mode by its peer, call the
* activation function of the internal pad to propagate the activation
* upstream */
GST_LOG_OBJECT (pad, "pad is src, activate internal");
GST_PROXY_PAD_ACQUIRE_INTERNAL (pad, other, FALSE);
ret = gst_pad_activate_mode (other, GST_PAD_MODE_PULL, active);
GST_PROXY_PAD_RELEASE_INTERNAL (other);
} else if (G_LIKELY ((other = gst_pad_get_peer (pad)))) {
/* We are SINK and activated by the internal pad, propagate activation
* upstream because we hold a ref to the upstream peer */
GST_LOG_OBJECT (pad, "activating peer");
ret = gst_pad_activate_mode (other, GST_PAD_MODE_PULL, active);
gst_object_unref (other);
} else {
/* no peer, we fail */
GST_LOG_OBJECT (pad, "pad not src and no peer, failing");
ret = FALSE;
}
return ret;
}
static gboolean
gst_ghost_pad_internal_activate_pull_default (GstPad * pad, GstObject * parent,
gboolean active)
{
gboolean ret;
GstPad *other;
GST_LOG_OBJECT (pad, "%sactivate pull on %s:%s", (active ? "" : "de"),
GST_DEBUG_PAD_NAME (pad));
if (GST_PAD_DIRECTION (pad) == GST_PAD_SRC) {
/* we are activated in pull mode by our peer element, which is a sinkpad
* that wants to operate in pull mode. This activation has to propagate
* upstream through the pipeline. We call the internal activation function,
* which will trigger gst_ghost_pad_activate_pull_default, which propagates even
* further upstream */
GST_LOG_OBJECT (pad, "pad is src, activate internal");
GST_PROXY_PAD_ACQUIRE_INTERNAL (pad, other, FALSE);
ret = gst_pad_activate_mode (other, GST_PAD_MODE_PULL, active);
GST_PROXY_PAD_RELEASE_INTERNAL (other);
} else if (G_LIKELY ((other = gst_pad_get_peer (pad)))) {
/* We are SINK, the ghostpad is SRC, we propagate the activation upstream
* since we hold a pointer to the upstream peer. */
GST_LOG_OBJECT (pad, "activating peer");
ret = gst_pad_activate_mode (other, GST_PAD_MODE_PULL, active);
gst_object_unref (other);
} else {
/* this is failure, we can't activate pull if there is no peer */
GST_LOG_OBJECT (pad, "not src and no peer, failing");
ret = FALSE;
}
return ret;
}
static gboolean
gst_interleave_sink_query (GstCollectPads * pads,
GstCollectData * data, GstQuery * query, gpointer user_data)
{
GstInterleave *self = GST_INTERLEAVE (user_data);
gboolean ret = TRUE;
GST_DEBUG ("Got %s query on pad %s:%s", GST_QUERY_TYPE_NAME (query),
GST_DEBUG_PAD_NAME (data->pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:
{
GstCaps *filter, *caps;
gst_query_parse_caps (query, &filter);
caps = gst_interleave_sink_getcaps (data->pad, self, filter);
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
ret = TRUE;
break;
}
default:
ret = gst_collect_pads_query_default (pads, data, query, FALSE);
break;
}
return ret;
}
static gboolean
gst_fake_sink_event (GstBaseSink * bsink, GstEvent * event)
{
GstFakeSink *sink = GST_FAKE_SINK (bsink);
if (!sink->silent) {
const GstStructure *s;
const gchar *tstr;
gchar *sstr;
GST_OBJECT_LOCK (sink);
g_free (sink->last_message);
if (GST_EVENT_TYPE (event) == GST_EVENT_SINK_MESSAGE) {
GstMessage *msg;
const GstStructure *structure;
gst_event_parse_sink_message (event, &msg);
structure = gst_message_get_structure (msg);
sstr = gst_structure_to_string (structure);
sink->last_message =
g_strdup_printf ("message ******* (%s:%s) M (type: %d, %s) %p",
GST_DEBUG_PAD_NAME (GST_BASE_SINK_CAST (sink)->sinkpad),
GST_MESSAGE_TYPE (msg), sstr, msg);
gst_message_unref (msg);
} else {
tstr = gst_event_type_get_name (GST_EVENT_TYPE (event));
if ((s = gst_event_get_structure (event))) {
sstr = gst_structure_to_string (s);
} else {
sstr = g_strdup ("");
}
sink->last_message =
g_strdup_printf ("event ******* (%s:%s) E (type: %s (%d), %s) %p",
GST_DEBUG_PAD_NAME (GST_BASE_SINK_CAST (sink)->sinkpad),
tstr, GST_EVENT_TYPE (event), sstr, event);
}
g_free (sstr);
GST_OBJECT_UNLOCK (sink);
gst_fake_sink_notify_last_message (sink);
}
return GST_BASE_SINK_CLASS (parent_class)->event (bsink, event);
}
static void
pad_added_cb (GstElement * decodebin, GstPad * pad, PlayState * state)
{
GstPadLinkReturn ret;
GstElement *fakesink;
GstPad *fakesink_pad;
StreamInfo *si;
fakesink = gst_element_factory_make ("fakesink", NULL);
#if 0
if (state->n_sinks == 1)
g_object_set (fakesink, "silent", FALSE, NULL);
#endif
si = g_new0 (StreamInfo, 1);
si->pad = g_object_ref (pad);
si->state = state;
si->fwd_times = g_array_new (FALSE, TRUE, sizeof (StreamTSRange));
si->bkwd_times = g_array_new (FALSE, TRUE, sizeof (StreamTSRange));
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_DATA_DOWNSTREAM,
(GstPadProbeCallback) handle_output, si, (GDestroyNotify)
_destroy_stream_info);
state->n_sinks++;
gst_bin_add (GST_BIN (state->pipe), fakesink);
gst_element_sync_state_with_parent (fakesink);
fakesink_pad = gst_element_get_static_pad (fakesink, "sink");
ret = gst_pad_link (pad, fakesink_pad);
if (!GST_PAD_LINK_SUCCESSFUL (ret)) {
g_printerr ("Failed to link %s:%s to %s:%s (ret = %d)\n",
GST_DEBUG_PAD_NAME (pad), GST_DEBUG_PAD_NAME (fakesink_pad), ret);
} else {
GstCaps *caps = gst_pad_get_current_caps (pad);
gchar *s = gst_caps_to_string (caps);
g_print ("Linked %s:%s to %s:%s caps %s\n", GST_DEBUG_PAD_NAME (pad),
GST_DEBUG_PAD_NAME (fakesink_pad), s);
gst_caps_unref (caps);
g_free (s);
}
gst_object_unref (fakesink_pad);
}
EXPORT_C
#endif
gboolean
gst_ghost_pad_set_target (GstGhostPad * gpad, GstPad * newtarget)
{
GstPad *internal;
GstPad *oldtarget;
gboolean result;
GstPadLinkReturn lret;
g_return_val_if_fail (GST_IS_GHOST_PAD (gpad), FALSE);
GST_PROXY_LOCK (gpad);
internal = GST_PROXY_PAD_INTERNAL (gpad);
GST_DEBUG_OBJECT (gpad, "set target %s:%s", GST_DEBUG_PAD_NAME (newtarget));
/* clear old target */
if ((oldtarget = GST_PROXY_PAD_TARGET (gpad))) {
/* if we have an internal pad, unlink */
if (internal) {
if (GST_PAD_IS_SRC (internal))
gst_pad_unlink (internal, oldtarget);
else
gst_pad_unlink (oldtarget, internal);
}
}
result = gst_proxy_pad_set_target_unlocked (GST_PAD_CAST (gpad), newtarget);
if (result && newtarget) {
/* and link to internal pad */
GST_DEBUG_OBJECT (gpad, "connecting internal pad to target");
if (GST_PAD_IS_SRC (internal))
lret = gst_pad_link (internal, newtarget);
else
lret = gst_pad_link (newtarget, internal);
if (lret != GST_PAD_LINK_OK)
goto link_failed;
}
GST_PROXY_UNLOCK (gpad);
return result;
/* ERRORS */
link_failed:
{
GST_WARNING_OBJECT (gpad, "could not link internal and target, reason:%d",
lret);
/* and unset target again */
gst_proxy_pad_set_target_unlocked (GST_PAD_CAST (gpad), NULL);
GST_PROXY_UNLOCK (gpad);
return FALSE;
}
}
