Commit 10a685a9 authored by Andy Wingo Wingo's avatar Andy Wingo Wingo
Browse files

gst/interleave/interleave.c (gst_interleave_init): Init the activation mode properly.

Original commit message from CVS:
2007-01-13  Andy Wingo  <wingo@pobox.com>

* gst/interleave/interleave.c (gst_interleave_init): Init the
activation mode properly.
(gst_interleave_src_setcaps, gst_interleave_src_getcaps)
(gst_interleave_init): Set a setcaps and getcaps function on the
src pad, so that we can implement pull-mode negotiation.
(gst_interleave_sink_setcaps): Renamed from
gst_interleave_setcaps, as it only does the sink logic now.
Implement both for pull-mode and push-mode.
(gst_interleave_process): Set caps on our outgoing buffer.
(gst_interleave_src_activate_pull): Fix some more bogus casts.
What is up with this.
parent 22ebbb69
......@@ -135,7 +135,9 @@ static GstPad *gst_interleave_request_new_pad (GstElement * element,
static GstFlowReturn gst_interleave_getrange (GstPad * pad,
guint64 offset, guint length, GstBuffer ** buffer);
static GstFlowReturn gst_interleave_chain (GstPad * pad, GstBuffer * buffer);
static gboolean gst_interleave_setcaps (GstPad * pad, GstCaps * caps);
static gboolean gst_interleave_src_setcaps (GstPad * pad, GstCaps * caps);
static gboolean gst_interleave_sink_setcaps (GstPad * pad, GstCaps * caps);
static GstCaps *gst_interleave_src_getcaps (GstPad * pad);
static const GstElementDetails details =
......@@ -173,6 +175,7 @@ static void
gst_interleave_init (GstInterleave * self, GstInterleaveClass * klass)
{
self->pending_in = 0;
self->mode = GST_ACTIVATE_NONE;
self->src = gst_pad_new_from_static_template (&src_template, "src");
......@@ -180,6 +183,10 @@ gst_interleave_init (GstInterleave * self, GstInterleaveClass * klass)
GST_DEBUG_FUNCPTR (gst_interleave_getrange));
gst_pad_set_activatepull_function (self->src,
GST_DEBUG_FUNCPTR (gst_interleave_src_activate_pull));
gst_pad_set_setcaps_function (self->src,
GST_DEBUG_FUNCPTR (gst_interleave_src_setcaps));
gst_pad_set_getcaps_function (self->src,
GST_DEBUG_FUNCPTR (gst_interleave_src_getcaps));
gst_element_add_pad (GST_ELEMENT (self), self->src);
}
......@@ -197,7 +204,7 @@ gst_interleave_request_new_pad (GstElement * element, GstPadTemplate * templ,
GST_INTERLEAVE_PAD (new)->channel = self->channels++;
gst_pad_set_setcaps_function (new,
GST_DEBUG_FUNCPTR (gst_interleave_setcaps));
GST_DEBUG_FUNCPTR (gst_interleave_sink_setcaps));
gst_pad_set_chain_function (new, GST_DEBUG_FUNCPTR (gst_interleave_chain));
gst_pad_set_activatepush_function (new,
......@@ -226,41 +233,148 @@ gst_interleave_unset_caps (GstInterleave * self)
}
static gboolean
gst_interleave_setcaps (GstPad * pad, GstCaps * caps)
gst_interleave_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstInterleave *self;
self = GST_INTERLEAVE (gst_pad_get_parent (pad));
if (self->sinkcaps && !gst_caps_is_equal (caps, self->sinkcaps)) {
goto cannot_change_caps_dog;
} else {
GST_DEBUG_OBJECT (self, "got caps: %" GST_PTR_FORMAT, caps);
gst_caps_replace (&self->sinkcaps, caps);
}
if (self->sinkcaps && !gst_caps_is_equal (caps, self->sinkcaps))
goto cannot_change_caps;
{
if (self->mode == GST_ACTIVATE_PULL) {
GstPad *peer;
if ((peer = gst_pad_get_peer (pad))) {
gboolean res = gst_pad_set_caps (peer, caps);
gst_object_unref (peer);
if (!res)
goto peer_did_not_accept;
}
} else {
GstCaps *srccaps;
GstStructure *s;
gboolean res;
srccaps = gst_caps_copy (caps);
s = gst_caps_get_structure (srccaps, 0);
gst_structure_set (s, "channels", G_TYPE_INT, self->channels, NULL);
gst_pad_set_caps (self->src, srccaps);
gst_structure_set (gst_caps_get_structure (srccaps, 0), "channels",
G_TYPE_INT, self->channels, NULL);
res = gst_pad_set_caps (self->src, srccaps);
gst_caps_unref (srccaps);
if (!res)
goto src_did_not_accept;
}
if (!self->sinkcaps)
gst_caps_replace (&self->sinkcaps, caps);
return TRUE;
cannot_change_caps:
{
GST_DEBUG_OBJECT (self, "caps of %" GST_PTR_FORMAT " already set, can't "
"change", self->sinkcaps);
return FALSE;
}
peer_did_not_accept:
{
GST_DEBUG_OBJECT (self, "peer did not accept setcaps()");
return FALSE;
}
src_did_not_accept:
{
GST_DEBUG_OBJECT (self, "src did not accept setcaps()");
return FALSE;
}
}
static gboolean
gst_interleave_src_setcaps (GstPad * pad, GstCaps * caps)
{
GstInterleave *self;
gint channels;
self = GST_INTERLEAVE (gst_pad_get_parent (pad));
if (!gst_structure_get_int (gst_caps_get_structure (caps, 0), "channels",
&channels))
goto impossible;
if (channels != self->channels)
goto wrong_num_channels;
if (self->mode == GST_ACTIVATE_PULL) {
GstCaps *sinkcaps;
GList *l;
sinkcaps = gst_caps_copy (caps);
gst_structure_set (gst_caps_get_structure (sinkcaps, 0), "channels",
G_TYPE_INT, 1, NULL);
for (l = GST_ELEMENT (self)->sinkpads; l; l = l->next)
if (!gst_pad_set_caps (GST_PAD (l->data), sinkcaps))
goto sinks_did_not_accept;
gst_caps_unref (sinkcaps);
}
gst_object_unref (self);
return TRUE;
cannot_change_caps_dog:
impossible:
{
g_warning ("caps didn't have channels property, how is this possible");
gst_object_unref (self);
return FALSE;
}
wrong_num_channels:
{
GST_INFO_OBJECT (self, "bad number of channels (%d != %d)",
self->channels, channels);
gst_object_unref (self);
return FALSE;
}
sinks_did_not_accept:
{
/* assume they already logged */
gst_object_unref (self);
return FALSE;
}
}
static GstCaps *
gst_interleave_src_getcaps (GstPad * pad)
{
GstInterleave *self;
GList *l;
GstCaps *ret;
self = GST_INTERLEAVE (gst_pad_get_parent (pad));
ret = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
for (l = GST_ELEMENT (self)->sinkpads; l; l = l->next) {
GstCaps *sinkcaps, *oldcaps;
oldcaps = ret;
sinkcaps = gst_pad_get_caps (GST_PAD (l->data));
ret = gst_caps_intersect (sinkcaps, oldcaps);
gst_caps_unref (oldcaps);
gst_caps_unref (sinkcaps);
}
if (self->channels)
gst_structure_set (gst_caps_get_structure (ret, 0), "channels", G_TYPE_INT,
self->channels, NULL);
gst_object_unref (self);
return ret;
}
static void
gst_interleave_update_inputs (GstInterleave * self, guint nprocessed)
{
......@@ -326,6 +440,8 @@ gst_interleave_process (GstInterleave * self, guint nframes, GstBuffer ** buf)
if (GST_BUFFER_SIZE (*buf) != bufsize)
goto alloc_buffer_bad_size;
gst_buffer_set_caps (*buf, GST_PAD_CAPS (self->src));
/* do the thing */
for (sinks = elem->sinkpads, i = 0; sinks; sinks = sinks->next, i++) {
GstInterleavePad *sinkpad = (GstInterleavePad *) sinks->data;
......@@ -567,7 +683,7 @@ gst_interleave_src_activate_pull (GstPad * pad, gboolean active)
if (GST_ELEMENT (self)->sinkpads) {
for (l = GST_ELEMENT (self)->sinkpads; l; l = l->next)
result &= gst_pad_activate_pull (pad, active);
result &= gst_pad_activate_pull (GST_PAD (l->data), active);
} else {
/* nobody has requested pads, seems i am operating in delayed-request
push mode */
......@@ -588,7 +704,7 @@ gst_interleave_src_activate_pull (GstPad * pad, gboolean active)
GList *l;
for (l = GST_ELEMENT (self)->sinkpads; l; l = l->next)
result &= gst_pad_activate_pull (pad, active);
result &= gst_pad_activate_pull (GST_PAD (l->data), active);
if (result)
self->mode = GST_ACTIVATE_NONE;
result = TRUE;
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment