static gboolean
gst_deinterleave_src_query (GstPad * pad, GstQuery * query)
{
GstDeinterleave *self = GST_DEINTERLEAVE (gst_pad_get_parent (pad));
gboolean res;
res = gst_pad_query_default (pad, query);
if (res && GST_QUERY_TYPE (query) == GST_QUERY_DURATION) {
GstFormat format;
gint64 dur;
gst_query_parse_duration (query, &format, &dur);
/* Need to divide by the number of channels in byte format
* to get the correct value. All other formats should be fine
*/
if (format == GST_FORMAT_BYTES && dur != -1)
gst_query_set_duration (query, format, dur / self->channels);
} else if (res && GST_QUERY_TYPE (query) == GST_QUERY_POSITION) {
GstFormat format;
gint64 pos;
gst_query_parse_position (query, &format, &pos);
/* Need to divide by the number of channels in byte format
* to get the correct value. All other formats should be fine
*/
if (format == GST_FORMAT_BYTES && pos != -1)
gst_query_set_position (query, format, pos / self->channels);
}
gst_object_unref (self);
return res;
}
static gboolean
gst_deinterleave_sink_activate_push (GstPad * pad, gboolean active)
{
GstDeinterleave *self = GST_DEINTERLEAVE (gst_pad_get_parent (pad));
/* Reset everything when the pad is deactivated */
if (!active) {
gst_deinterleave_remove_pads (self);
if (self->pos) {
g_free (self->pos);
self->pos = NULL;
}
self->channels = 0;
self->width = 0;
self->func = NULL;
if (self->pending_events) {
g_list_foreach (self->pending_events, (GFunc) gst_mini_object_unref,
NULL);
g_list_free (self->pending_events);
self->pending_events = NULL;
}
}
gst_object_unref (self);
return TRUE;
}
static void
gst_deinterleave_finalize (GObject * obj)
{
GstDeinterleave *self = GST_DEINTERLEAVE (obj);
if (self->pending_events) {
g_list_foreach (self->pending_events, (GFunc) gst_mini_object_unref, NULL);
g_list_free (self->pending_events);
self->pending_events = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (obj);
}
static GstStateChangeReturn
gst_deinterleave_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstDeinterleave *self = GST_DEINTERLEAVE (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_deinterleave_remove_pads (self);
self->func = NULL;
if (self->pending_events) {
g_list_foreach (self->pending_events, (GFunc) gst_mini_object_unref,
NULL);
g_list_free (self->pending_events);
self->pending_events = NULL;
}
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_deinterleave_remove_pads (self);
self->func = NULL;
if (self->pending_events) {
g_list_foreach (self->pending_events, (GFunc) gst_mini_object_unref,
NULL);
g_list_free (self->pending_events);
self->pending_events = NULL;
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static void
gst_deinterleave_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstDeinterleave *self = GST_DEINTERLEAVE (object);
switch (prop_id) {
case PROP_KEEP_POSITIONS:
g_value_set_boolean (value, self->keep_positions);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_deinterleave_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstDeinterleave *self = GST_DEINTERLEAVE (parent);
gboolean res;
res = gst_pad_query_default (pad, parent, query);
if (res && GST_QUERY_TYPE (query) == GST_QUERY_DURATION) {
GstFormat format;
gint64 dur;
gst_query_parse_duration (query, &format, &dur);
/* Need to divide by the number of channels in byte format
* to get the correct value. All other formats should be fine
*/
if (format == GST_FORMAT_BYTES && dur != -1)
gst_query_set_duration (query, format,
dur / GST_AUDIO_INFO_CHANNELS (&self->audio_info));
} else if (res && GST_QUERY_TYPE (query) == GST_QUERY_POSITION) {
GstFormat format;
gint64 pos;
gst_query_parse_position (query, &format, &pos);
/* Need to divide by the number of channels in byte format
* to get the correct value. All other formats should be fine
*/
if (format == GST_FORMAT_BYTES && pos != -1)
gst_query_set_position (query, format,
pos / GST_AUDIO_INFO_CHANNELS (&self->audio_info));
} else if (res && GST_QUERY_TYPE (query) == GST_QUERY_CAPS) {
GstCaps *filter, *caps;
gst_query_parse_caps (query, &filter);
caps = gst_deinterleave_sink_getcaps (pad, parent, filter);
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
}
return res;
}
static GstFlowReturn
gst_deinterleave_chain (GstPad * pad, GstBuffer * buffer)
{
GstDeinterleave *self = GST_DEINTERLEAVE (GST_PAD_PARENT (pad));
GstFlowReturn ret;
g_return_val_if_fail (self->func != NULL, GST_FLOW_NOT_NEGOTIATED);
g_return_val_if_fail (self->width > 0, GST_FLOW_NOT_NEGOTIATED);
g_return_val_if_fail (self->channels > 0, GST_FLOW_NOT_NEGOTIATED);
ret = gst_deinterleave_process (self, buffer);
if (ret != GST_FLOW_OK)
GST_DEBUG_OBJECT (self, "flow return: %s", gst_flow_get_name (ret));
return ret;
}
static gboolean
gst_deinterleave_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstDeinterleave *self = GST_DEINTERLEAVE (parent);
gboolean ret;
GST_DEBUG ("Got %s event on pad %s:%s", GST_EVENT_TYPE_NAME (event),
GST_DEBUG_PAD_NAME (pad));
/* Send FLUSH_STOP, FLUSH_START and EOS immediately, no matter if
* we have src pads already or not. Queue all other events and
* push them after we have src pads
*/
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_STOP:
case GST_EVENT_FLUSH_START:
case GST_EVENT_EOS:
ret = gst_pad_event_default (pad, parent, event);
break;
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
ret = gst_deinterleave_sink_setcaps (self, caps);
gst_event_unref (event);
break;
}
default:
if (!self->srcpads && !GST_EVENT_IS_STICKY (event)) {
/* Sticky events are copied when creating a new pad */
GST_OBJECT_LOCK (self);
self->pending_events = g_list_append (self->pending_events, event);
GST_OBJECT_UNLOCK (self);
ret = TRUE;
} else {
ret = gst_pad_event_default (pad, parent, event);
}
break;
}
return ret;
}
static GstFlowReturn
gst_deinterleave_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
GstDeinterleave *self = GST_DEINTERLEAVE (parent);
GstFlowReturn ret;
g_return_val_if_fail (self->func != NULL, GST_FLOW_NOT_NEGOTIATED);
g_return_val_if_fail (GST_AUDIO_INFO_WIDTH (&self->audio_info) > 0,
GST_FLOW_NOT_NEGOTIATED);
g_return_val_if_fail (GST_AUDIO_INFO_CHANNELS (&self->audio_info) > 0,
GST_FLOW_NOT_NEGOTIATED);
ret = gst_deinterleave_process (self, buffer);
if (ret != GST_FLOW_OK)
GST_DEBUG_OBJECT (self, "flow return: %s", gst_flow_get_name (ret));
return ret;
}
static gboolean
gst_deinterleave_sink_event (GstPad * pad, GstEvent * event)
{
GstDeinterleave *self = GST_DEINTERLEAVE (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));
/* Send FLUSH_STOP, FLUSH_START and EOS immediately, no matter if
* we have src pads already or not. Queue all other events and
* push them after we have src pads
*/
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_STOP:
case GST_EVENT_FLUSH_START:
case GST_EVENT_EOS:
ret = gst_pad_event_default (pad, event);
break;
default:
if (self->srcpads) {
ret = gst_pad_event_default (pad, event);
} else {
GST_OBJECT_LOCK (self);
self->pending_events = g_list_append (self->pending_events, event);
GST_OBJECT_UNLOCK (self);
ret = TRUE;
}
break;
}
gst_object_unref (self);
return ret;
}
static GstCaps *
gst_deinterleave_sink_getcaps (GstPad * pad)
{
GstDeinterleave *self = GST_DEINTERLEAVE (gst_pad_get_parent (pad));
GstCaps *ret;
GList *l;
GST_OBJECT_LOCK (self);
/* Intersect all of our pad template caps with the peer caps of the pad
* to get all formats that are possible up- and downstream.
*
* For the pad for which the caps are requested we don't remove the channel
* informations as they must be in the returned caps and incompatibilities
* will be detected here already
*/
ret = gst_caps_new_any ();
for (l = GST_ELEMENT (self)->pads; l != NULL; l = l->next) {
GstPad *ourpad = GST_PAD (l->data);
GstCaps *peercaps = NULL, *ourcaps;
ourcaps = gst_caps_copy (gst_pad_get_pad_template_caps (ourpad));
if (pad == ourpad) {
if (GST_PAD_DIRECTION (pad) == GST_PAD_SINK)
__set_channels (ourcaps, self->channels);
else
__set_channels (ourcaps, 1);
} else {
__remove_channels (ourcaps);
/* Only ask for peer caps for other pads than pad
* as otherwise gst_pad_peer_get_caps() might call
* back into this function and deadlock
*/
peercaps = gst_pad_peer_get_caps (ourpad);
}
/* If the peer exists and has caps add them to the intersection,
* otherwise assume that the peer accepts everything */
if (peercaps) {
GstCaps *intersection;
GstCaps *oldret = ret;
__remove_channels (peercaps);
intersection = gst_caps_intersect (peercaps, ourcaps);
ret = gst_caps_intersect (ret, intersection);
gst_caps_unref (intersection);
gst_caps_unref (peercaps);
gst_caps_unref (oldret);
} else {
GstCaps *oldret = ret;
ret = gst_caps_intersect (ret, ourcaps);
gst_caps_unref (oldret);
}
gst_caps_unref (ourcaps);
}
GST_OBJECT_UNLOCK (self);
gst_object_unref (self);
GST_DEBUG_OBJECT (pad, "Intersected caps to %" GST_PTR_FORMAT, ret);
return ret;
}
static gboolean
gst_deinterleave_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstDeinterleave *self;
GstCaps *srccaps;
GstStructure *s;
self = GST_DEINTERLEAVE (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (self, "got caps: %" GST_PTR_FORMAT, caps);
if (self->sinkcaps && !gst_caps_is_equal (caps, self->sinkcaps)) {
gint new_channels, i;
GstAudioChannelPosition *pos;
gboolean same_layout = TRUE;
s = gst_caps_get_structure (caps, 0);
/* We allow caps changes as long as the number of channels doesn't change
* and the channel positions stay the same. _getcaps() should've cared
* for this already but better be safe.
*/
if (!gst_structure_get_int (s, "channels", &new_channels) ||
new_channels != self->channels ||
!gst_deinterleave_set_process_function (self, caps))
goto cannot_change_caps;
/* Now check the channel positions. If we had no channel positions
* and get them or the other way around things have changed.
* If we had channel positions and get different ones things have
* changed too of course
*/
pos = gst_audio_get_channel_positions (s);
if ((pos && !self->pos) || (!pos && self->pos))
goto cannot_change_caps;
if (pos) {
for (i = 0; i < self->channels; i++) {
if (self->pos[i] != pos[i]) {
same_layout = FALSE;
break;
}
}
g_free (pos);
if (!same_layout)
goto cannot_change_caps;
}
} else {
s = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (s, "channels", &self->channels))
goto no_channels;
if (!gst_deinterleave_set_process_function (self, caps))
goto unsupported_caps;
self->pos = gst_audio_get_channel_positions (s);
}
gst_caps_replace (&self->sinkcaps, caps);
/* Get srcpad caps */
srccaps = gst_caps_copy (caps);
s = gst_caps_get_structure (srccaps, 0);
gst_structure_set (s, "channels", G_TYPE_INT, 1, NULL);
gst_structure_remove_field (s, "channel-positions");
/* If we already have pads, update the caps otherwise
* add new pads */
if (self->srcpads) {
gst_deinterleave_set_pads_caps (self, srccaps);
} else {
gst_deinterleave_add_new_pads (self, srccaps);
}
gst_caps_unref (srccaps);
gst_object_unref (self);
return TRUE;
cannot_change_caps:
{
GST_ERROR_OBJECT (self, "can't set new caps: %" GST_PTR_FORMAT, caps);
gst_object_unref (self);
return FALSE;
}
unsupported_caps:
{
GST_ERROR_OBJECT (self, "caps not supported: %" GST_PTR_FORMAT, caps);
gst_object_unref (self);
return FALSE;
}
no_channels:
{
GST_ERROR_OBJECT (self, "invalid caps");
gst_object_unref (self);
return FALSE;
}
}
