static gboolean
gst_play_sink_convert_bin_sink_setcaps (GstPlaySinkConvertBin * self,
GstCaps * caps)
{
GstStructure *s;
const gchar *name;
gboolean reconfigure = FALSE;
gboolean raw;
GST_DEBUG_OBJECT (self, "setcaps");
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
s = gst_caps_get_structure (caps, 0);
name = gst_structure_get_name (s);
if (self->audio) {
raw = g_str_equal (name, "audio/x-raw");
} else {
raw = g_str_equal (name, "video/x-raw");
}
GST_DEBUG_OBJECT (self, "raw %d, self->raw %d, blocked %d",
raw, self->raw, gst_pad_is_blocked (self->sink_proxypad));
if (raw) {
if (!gst_pad_is_blocked (self->sink_proxypad)) {
GstPad *target = gst_ghost_pad_get_target (GST_GHOST_PAD (self->sinkpad));
if (!self->raw || (target && !gst_pad_query_accept_caps (target, caps))) {
if (!self->raw)
GST_DEBUG_OBJECT (self, "Changing caps from non-raw to raw");
else
GST_DEBUG_OBJECT (self, "Changing caps in an incompatible way");
reconfigure = TRUE;
block_proxypad (self);
}
if (target)
gst_object_unref (target);
}
} else {
if (self->raw && !gst_pad_is_blocked (self->sink_proxypad)) {
GST_DEBUG_OBJECT (self, "Changing caps from raw to non-raw");
reconfigure = TRUE;
block_proxypad (self);
}
}
/* Otherwise the setcaps below fails */
if (reconfigure) {
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
}
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
GST_DEBUG_OBJECT (self, "Setting sink caps %" GST_PTR_FORMAT, caps);
return TRUE;
}
static GstStateChangeReturn
gst_play_sink_convert_bin_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret;
GstPlaySinkConvertBin *self = GST_PLAY_SINK_CONVERT_BIN_CAST (element);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
unblock_proxypad (self);
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
gst_play_sink_convert_bin_set_targets (self, TRUE);
self->raw = FALSE;
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
gst_play_sink_convert_bin_set_targets (self, TRUE);
self->raw = FALSE;
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
unblock_proxypad (self);
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
break;
default:
break;
}
return ret;
}
static gboolean
gst_play_sink_convert_bin_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event)
{
GstPlaySinkConvertBin *self = GST_PLAY_SINK_CONVERT_BIN (parent);
gboolean ret;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
ret = gst_play_sink_convert_bin_sink_setcaps (self, caps);
break;
}
default:
break;
}
ret = gst_pad_event_default (pad, parent, gst_event_ref (event));
if (GST_EVENT_TYPE (event) == GST_EVENT_SEGMENT) {
GstSegment seg;
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
gst_event_copy_segment (event, &seg);
GST_DEBUG_OBJECT (self, "Segment before %" GST_SEGMENT_FORMAT,
&self->segment);
self->segment = seg;
GST_DEBUG_OBJECT (self, "Segment after %" GST_SEGMENT_FORMAT,
&self->segment);
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
} else if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP) {
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
GST_DEBUG_OBJECT (self, "Resetting segment");
gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
}
gst_event_unref (event);
return ret;
}
static GstPadProbeReturn
pad_blocked_cb (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
{
GstPlaySinkConvertBin *self = user_data;
GstPad *peer;
GstCaps *caps;
gboolean raw;
if (GST_IS_EVENT (info->data) && !GST_EVENT_IS_SERIALIZED (info->data)) {
GST_DEBUG_OBJECT (self, "Letting non-serialized event %s pass",
GST_EVENT_TYPE_NAME (info->data));
return GST_PAD_PROBE_PASS;
}
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
GST_DEBUG_OBJECT (self, "Pad blocked");
/* There must be a peer at this point */
peer = gst_pad_get_peer (self->sinkpad);
caps = gst_pad_get_current_caps (peer);
if (!caps)
caps = gst_pad_query_caps (peer, NULL);
gst_object_unref (peer);
raw = is_raw_caps (caps, self->audio);
GST_DEBUG_OBJECT (self, "Caps %" GST_PTR_FORMAT " are raw: %d", caps, raw);
gst_caps_unref (caps);
if (raw == self->raw)
goto unblock;
self->raw = raw;
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
if (raw) {
GST_DEBUG_OBJECT (self, "Switching to raw conversion pipeline");
if (self->conversion_elements)
g_list_foreach (self->conversion_elements,
(GFunc) gst_play_sink_convert_bin_on_element_added, self);
} else {
GST_DEBUG_OBJECT (self, "Switch to passthrough pipeline");
gst_play_sink_convert_bin_on_element_added (self->identity, self);
}
gst_play_sink_convert_bin_set_targets (self, !raw);
unblock:
self->sink_proxypad_block_id = 0;
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
return GST_PAD_PROBE_REMOVE;
}
static void
gst_play_sink_audio_convert_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstPlaySinkAudioConvert *self = GST_PLAY_SINK_AUDIO_CONVERT_CAST (object);
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
switch (prop_id) {
case PROP_USE_CONVERTERS:
g_value_set_boolean (value, self->use_converters);
break;
case PROP_USE_VOLUME:
g_value_set_boolean (value, self->use_volume);
break;
default:
break;
}
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
}
static GstCaps *
gst_play_sink_convert_bin_getcaps (GstPad * pad, GstCaps * filter)
{
GstPlaySinkConvertBin *self =
GST_PLAY_SINK_CONVERT_BIN (gst_pad_get_parent (pad));
GstCaps *ret;
GstPad *otherpad, *peer;
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
if (pad == self->srcpad) {
otherpad = self->sinkpad;
} else if (pad == self->sinkpad) {
otherpad = self->srcpad;
} else {
GST_ERROR_OBJECT (pad, "Not one of our pads");
otherpad = NULL;
}
if (otherpad) {
peer = gst_pad_get_peer (otherpad);
if (peer) {
GstCaps *peer_caps = gst_pad_query_caps (peer, filter);
gst_object_unref (peer);
if (self->converter_caps && is_raw_caps (peer_caps, self->audio)) {
ret = gst_caps_merge (peer_caps, gst_caps_ref (self->converter_caps));
} else {
ret = peer_caps;
}
} else {
ret = gst_caps_ref (self->converter_caps);
}
} else {
ret = gst_caps_new_any ();
}
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
gst_object_unref (self);
GST_DEBUG_OBJECT (pad, "Returning caps %" GST_PTR_FORMAT, ret);
return ret;
}
static void
gst_play_sink_audio_convert_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstPlaySinkAudioConvert *self = GST_PLAY_SINK_AUDIO_CONVERT_CAST (object);
gboolean v, changed = FALSE;
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
switch (prop_id) {
case PROP_USE_CONVERTERS:
v = g_value_get_boolean (value);
if (v != self->use_converters) {
self->use_converters = v;
changed = TRUE;
}
break;
case PROP_USE_VOLUME:
v = g_value_get_boolean (value);
if (v != self->use_volume) {
self->use_volume = v;
changed = TRUE;
}
break;
default:
break;
}
if (changed) {
GstPlaySinkConvertBin *cbin = GST_PLAY_SINK_CONVERT_BIN (self);
GST_DEBUG_OBJECT (self, "Rebuilding converter bin");
gst_play_sink_convert_bin_remove_elements (cbin);
gst_play_sink_audio_convert_add_conversion_elements (self);
gst_play_sink_convert_bin_add_identity (cbin);
gst_play_sink_convert_bin_cache_converter_caps (cbin);
}
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
}
static GstCaps *
gst_play_sink_convert_bin_getcaps (GstPad * pad, GstCaps * filter)
{
GstPlaySinkConvertBin *self =
GST_PLAY_SINK_CONVERT_BIN (gst_pad_get_parent (pad));
GstCaps *ret;
GstPad *otherpad, *peer;
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
if (pad == self->srcpad) {
otherpad = self->sinkpad;
} else if (pad == self->sinkpad) {
otherpad = self->srcpad;
} else {
GST_ERROR_OBJECT (pad, "Not one of our pads");
otherpad = NULL;
}
if (otherpad) {
peer = gst_pad_get_peer (otherpad);
if (peer) {
GstCaps *peer_caps;
GstCaps *downstream_filter = NULL;
/* Add all the caps that we can convert to to the filter caps,
* otherwise downstream might just return EMPTY caps because
* it doesn't handle the filter caps but we could still convert
* to these caps */
if (filter) {
guint i, n;
downstream_filter = gst_caps_new_empty ();
/* Intersect raw video caps in the filter caps with the converter
* caps. This makes sure that we don't accept raw video that we
* can't handle, e.g. because of caps features */
n = gst_caps_get_size (filter);
for (i = 0; i < n; i++) {
GstStructure *s;
GstCaps *tmp, *tmp2;
s = gst_structure_copy (gst_caps_get_structure (filter, i));
if (gst_structure_has_name (s,
self->audio ? "audio/x-raw" : "video/x-raw")) {
tmp = gst_caps_new_full (s, NULL);
tmp2 = gst_caps_intersect (tmp, self->converter_caps);
gst_caps_append (downstream_filter, tmp2);
gst_caps_unref (tmp);
} else {
gst_caps_append_structure (downstream_filter, s);
}
}
downstream_filter =
gst_caps_merge (downstream_filter,
gst_caps_ref (self->converter_caps));
}
peer_caps = gst_pad_query_caps (peer, downstream_filter);
if (downstream_filter)
gst_caps_unref (downstream_filter);
gst_object_unref (peer);
if (self->converter_caps && is_raw_caps (peer_caps, self->audio)) {
GstCaps *converter_caps = gst_caps_ref (self->converter_caps);
GstCapsFeatures *cf;
GstStructure *s;
guint i, n;
ret = gst_caps_make_writable (peer_caps);
/* Filter out ANY capsfeatures from the converter caps. We can't
* convert to ANY capsfeatures, they are only there so that we
* can passthrough whatever downstream can support... but we
* definitely don't want to return them here
*/
n = gst_caps_get_size (converter_caps);
for (i = 0; i < n; i++) {
s = gst_caps_get_structure (converter_caps, i);
cf = gst_caps_get_features (converter_caps, i);
if (cf && gst_caps_features_is_any (cf))
continue;
ret =
gst_caps_merge_structure_full (ret, gst_structure_copy (s),
(cf ? gst_caps_features_copy (cf) : NULL));
}
gst_caps_unref (converter_caps);
} else {
ret = peer_caps;
}
} else {
ret = gst_caps_ref (self->converter_caps);
}
GST_PLAY_SINK_CONVERT_BIN_FILTER_CAPS (filter, ret);
} else {
ret = filter ? gst_caps_ref (filter) : gst_caps_new_any ();
}
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
gst_object_unref (self);
GST_DEBUG_OBJECT (pad, "Returning caps %" GST_PTR_FORMAT, ret);
return ret;
}
static GstCaps *
gst_play_sink_convert_bin_getcaps (GstPad * pad, GstCaps * filter)
{
GstPlaySinkConvertBin *self =
GST_PLAY_SINK_CONVERT_BIN (gst_pad_get_parent (pad));
GstCaps *ret;
GstPad *otherpad, *peer;
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
if (pad == self->srcpad) {
otherpad = self->sinkpad;
} else if (pad == self->sinkpad) {
otherpad = self->srcpad;
} else {
GST_ERROR_OBJECT (pad, "Not one of our pads");
otherpad = NULL;
}
if (otherpad) {
peer = gst_pad_get_peer (otherpad);
if (peer) {
GstCaps *peer_caps;
GstCaps *downstream_filter = NULL;
/* Add all the caps that we can convert to to the filter caps,
* otherwise downstream might just return EMPTY caps because
* it doesn't handle the filter caps but we could still convert
* to these caps */
if (filter) {
downstream_filter = gst_caps_copy (filter);
downstream_filter =
gst_caps_merge (downstream_filter,
gst_caps_ref (self->converter_caps));
}
peer_caps = gst_pad_query_caps (peer, downstream_filter);
if (downstream_filter)
gst_caps_unref (downstream_filter);
gst_object_unref (peer);
if (self->converter_caps && is_raw_caps (peer_caps, self->audio)) {
ret = gst_caps_merge (peer_caps, gst_caps_ref (self->converter_caps));
} else {
ret = peer_caps;
}
} else {
ret = gst_caps_ref (self->converter_caps);
}
} else {
ret = gst_caps_new_any ();
}
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
gst_object_unref (self);
if (filter) {
GstCaps *intersection =
gst_caps_intersect_full (filter, ret, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (ret);
ret = intersection;
}
GST_DEBUG_OBJECT (pad, "Returning caps %" GST_PTR_FORMAT, ret);
return ret;
}
