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gst/elements/gstcapsfilter.c: Reimplement using basetransform, fixes buffer_alloc proxying among other things.
Original commit message from CVS: 2005-08-04 Andy Wingo <wingo@pobox.com> * gst/elements/gstcapsfilter.c: Reimplement using basetransform, fixes buffer_alloc proxying among other things. * gst/base/gstbasetransform.c: * gst/base/gstbasetransform.h: Revert patch to gstbasetransform from 7-28 removing delay_configure. * gst/base/gstbasetransform.h (GstBaseTransformClass.get_size): * gst/base/gstbasetransform.c (gst_base_transform_get_size): Semantics changed, should return not the size of the output buffer but the byte size of a buffer with a given caps. * gst/base/gstbasetransform.c (gst_base_transform_getcaps): Better debug object. (gst_base_transform_configure_caps): Don't set out_size here: (in, out) are not the pad caps until setcaps finishes. (gst_base_transform_buffer_alloc): Proxy the buffer_alloc for the not-in-place case as well. Deal with changing from in-place to not-in-place within calling pad_alloc_buffer. Still a bit concerned about the overhead here...
This commit is contained in:
Andy Wingo
parent
8ff106a019
commit
e20ed97cb2
7 changed files with 353 additions and 258 deletions
29
ChangeLog
29
ChangeLog
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@ -1,3 +1,32 @@
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2005-08-04 Andy Wingo <wingo@pobox.com>
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* gst/elements/gstcapsfilter.c: Reimplement using basetransform,
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fixes buffer_alloc proxying among other things.
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* gst/base/gstbasetransform.c:
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* gst/base/gstbasetransform.h:
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Revert patch to gstbasetransform from 7-28 removing
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delay_configure.
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* gst/base/gstbasetransform.h (GstBaseTransformClass.get_size):
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* gst/base/gstbasetransform.c (gst_base_transform_get_size):
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Semantics changed, should return not the size of the output buffer
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but the byte size of a buffer with a given caps.
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* gst/base/gstbasetransform.c (gst_base_transform_getcaps): Better
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debug object.
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(gst_base_transform_configure_caps): Don't set out_size here: (in,
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out) are not the pad caps until setcaps finishes.
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(gst_base_transform_buffer_alloc): Proxy the buffer_alloc for the
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not-in-place case as well. Deal with changing from in-place to
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not-in-place within calling pad_alloc_buffer. Still a bit
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concerned about the overhead here...
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2005-08-03 Andy Wingo <wingo@pobox.com>
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* gst/base/gstbasetransform.c (gst_base_transform_setcaps): Not
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fixating is an error.
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2005-08-04 Edward Hervey <edward@fluendo.com>
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* gst/base/gstadapter.h:
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@ -110,7 +110,8 @@ static gboolean gst_base_transform_src_activate_pull (GstPad * pad,
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gboolean active);
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static gboolean gst_base_transform_sink_activate_push (GstPad * pad,
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gboolean active);
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static guint gst_base_transform_get_size (GstBaseTransform * trans);
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static guint gst_base_transform_get_size (GstBaseTransform * trans,
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GstCaps * caps);
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static GstElementStateReturn gst_base_transform_change_state (GstElement *
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element);
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@ -264,26 +265,26 @@ gst_base_transform_getcaps (GstPad * pad)
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GstCaps *temp;
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const GstCaps *templ;
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GST_DEBUG_OBJECT (trans, "peer caps %" GST_PTR_FORMAT, caps);
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GST_DEBUG_OBJECT (pad, "peer caps %" GST_PTR_FORMAT, caps);
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/* filtered against our padtemplate */
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templ = gst_pad_get_pad_template_caps (otherpad);
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GST_DEBUG_OBJECT (trans, "our template %" GST_PTR_FORMAT, templ);
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GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, templ);
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temp = gst_caps_intersect (caps, templ);
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GST_DEBUG_OBJECT (trans, "intersected %" GST_PTR_FORMAT, temp);
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GST_DEBUG_OBJECT (pad, "intersected %" GST_PTR_FORMAT, temp);
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gst_caps_unref (caps);
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/* then see what we can tranform this to */
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caps = gst_base_transform_transform_caps (trans, otherpad, temp);
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GST_DEBUG_OBJECT (trans, "transformed %" GST_PTR_FORMAT, caps);
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GST_DEBUG_OBJECT (pad, "transformed %" GST_PTR_FORMAT, caps);
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gst_caps_unref (temp);
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if (caps == NULL)
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goto done;
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/* and filter against the template again */
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templ = gst_pad_get_pad_template_caps (pad);
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GST_DEBUG_OBJECT (trans, "our template %" GST_PTR_FORMAT, templ);
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GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, templ);
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temp = gst_caps_intersect (caps, templ);
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GST_DEBUG_OBJECT (trans, "intersected %" GST_PTR_FORMAT, temp);
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GST_DEBUG_OBJECT (pad, "intersected %" GST_PTR_FORMAT, temp);
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gst_caps_unref (caps);
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/* this is what we can do */
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caps = temp;
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@ -314,11 +315,6 @@ gst_base_transform_configure_caps (GstBaseTransform * trans, GstCaps * in,
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ret = klass->set_caps (trans, in, out);
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}
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/* if all goes well, get the size of the output buffer */
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if (ret) {
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trans->out_size = gst_base_transform_get_size (trans);
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GST_DEBUG_OBJECT (trans, "output buffer size %d", trans->out_size);
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}
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return ret;
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}
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@ -427,10 +423,12 @@ gst_base_transform_setcaps (GstPad * pad, GstCaps * caps)
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GST_DEBUG_OBJECT (trans, "in_place: %d", trans->in_place);
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/* see if we have to configure the element now */
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if (pad == trans->sinkpad)
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ret = gst_base_transform_configure_caps (trans, caps, othercaps);
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else
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ret = gst_base_transform_configure_caps (trans, othercaps, caps);
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if (!trans->delay_configure) {
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if (pad == trans->sinkpad)
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ret = gst_base_transform_configure_caps (trans, caps, othercaps);
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else
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ret = gst_base_transform_configure_caps (trans, othercaps, caps);
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}
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done:
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if (otherpeer)
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@ -460,7 +458,7 @@ no_transform_possible:
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}
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could_not_fixate:
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{
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GST_DEBUG_OBJECT (trans, "FAILED to fixate %" GST_PTR_FORMAT, othercaps);
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GST_ERROR_OBJECT (trans, "FAILED to fixate %" GST_PTR_FORMAT, othercaps);
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ret = FALSE;
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goto done;
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}
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@ -474,15 +472,15 @@ peer_no_accept:
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}
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static guint
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gst_base_transform_get_size (GstBaseTransform * trans)
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gst_base_transform_get_size (GstBaseTransform * trans, GstCaps * caps)
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{
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guint res = -1;
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GstBaseTransformClass *bclass;
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bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
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if (bclass->get_size) {
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res = bclass->get_size (trans);
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GST_DEBUG_OBJECT (trans, "get size function returned %d", res);
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res = bclass->get_size (trans, caps);
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GST_DEBUG_OBJECT (trans, "get size(%p) returned %d", caps, res);
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}
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return res;
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@ -494,21 +492,74 @@ gst_base_transform_buffer_alloc (GstPad * pad, guint64 offset, guint size,
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{
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GstBaseTransform *trans;
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GstFlowReturn res;
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guint got_size;
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trans = GST_BASE_TRANSFORM (gst_pad_get_parent (pad));
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*buf = NULL;
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if (trans->in_place) {
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/* we can only proxy the bufferpool if we do in_place transforms */
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/* request a buffer with the same caps */
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res = gst_pad_alloc_buffer (trans->srcpad, offset, size, caps, buf);
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} else {
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/* else let the default alloc function allocate a buffer */
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*buf = NULL;
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/* if we are configured, request a buffer with the src caps */
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GstCaps *srccaps = gst_pad_get_negotiated_caps (trans->srcpad);
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if (!srccaps)
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goto not_configured;
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got_size = gst_base_transform_get_size (trans, srccaps);
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if (got_size == -1) {
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gst_caps_unref (srccaps);
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goto unknown_size;
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}
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res = gst_pad_alloc_buffer (trans->srcpad, offset, got_size, srccaps, buf);
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gst_caps_unref (srccaps);
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}
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if (res == GST_FLOW_OK && !trans->in_place) {
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/* note that we might have been in place before, but calling the
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alloc_buffer caused setcaps to switch us out of in_place -- in any case
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the alloc_buffer served to transmit caps information but we can't use the
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buffer. fall through and allocate a buffer corresponding to our sink
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caps, if any */
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GstCaps *sinkcaps = gst_pad_get_negotiated_caps (trans->sinkpad);
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if (!sinkcaps)
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goto not_configured;
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got_size = gst_base_transform_get_size (trans, sinkcaps);
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if (got_size == -1) {
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gst_caps_unref (sinkcaps);
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goto unknown_size;
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}
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*buf = gst_buffer_new_and_alloc (got_size);
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gst_buffer_set_caps (*buf, sinkcaps);
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GST_BUFFER_OFFSET (*buf) = offset;
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res = GST_FLOW_OK;
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gst_caps_unref (sinkcaps);
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}
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gst_object_unref (trans);
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return res;
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not_configured:
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{
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/* let the default allocator handle it */
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*buf = NULL;
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gst_object_unref (trans);
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return GST_FLOW_OK;
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}
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unknown_size:
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{
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/* let the default allocator handle it */
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*buf = NULL;
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gst_object_unref (trans);
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return GST_FLOW_OK;
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}
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}
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@ -584,16 +635,25 @@ gst_base_transform_handle_buffer (GstBaseTransform * trans, GstBuffer * inbuf,
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/* figure out the output size */
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if (trans->out_size == -1) {
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/* ask subclass */
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if ((trans->out_size = gst_base_transform_get_size (trans)) == -1)
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/* else we have an error */
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trans->out_size = gst_base_transform_get_size (trans,
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GST_PAD_CAPS (trans->srcpad));
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if (trans->out_size == -1)
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/* we have an error */
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goto no_size;
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}
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/* we cannot reconfigure the element yet as we are still processing
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* the old buffer. We will therefore delay the reconfiguration of the
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* element until we have processed this last buffer. */
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trans->delay_configure = TRUE;
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/* no in place transform, get buffer, this might renegotiate. */
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ret = gst_pad_alloc_buffer (trans->srcpad,
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GST_BUFFER_OFFSET (inbuf), trans->out_size,
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GST_PAD_CAPS (trans->srcpad), outbuf);
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trans->delay_configure = FALSE;
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if (ret != GST_FLOW_OK)
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goto no_buffer;
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@ -54,6 +54,7 @@ struct _GstBaseTransform {
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gboolean in_place;
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guint out_size;
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gboolean delay_configure;
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};
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struct _GstBaseTransformClass {
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@ -70,8 +71,8 @@ struct _GstBaseTransformClass {
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gboolean (*set_caps) (GstBaseTransform *trans, GstCaps *incaps,
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GstCaps *outcaps);
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/* get the size of the output buffer, -1 on error */
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guint (*get_size) (GstBaseTransform *trans);
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/* get the byte size of a given caps, -1 on error */
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guint (*get_size) (GstBaseTransform *trans, GstCaps *caps);
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/* start and stop processing, ideal for opening/closing the resource */
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gboolean (*start) (GstBaseTransform *trans);
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@ -20,16 +20,19 @@
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* Boston, MA 02111-1307, USA.
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*/
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#include <stdlib.h>
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#include "config.h"
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#endif
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#include "../gst-i18n-lib.h"
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#include <gst/gstmarshal.h>
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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GstElementDetails gst_capsfilter_details = GST_ELEMENT_DETAILS ("CapsFilter",
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"Generic",
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"Pass data without modification, limiting formats",
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"David Schleef <ds@schleef.org>");
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#define GST_TYPE_CAPSFILTER \
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@ -48,23 +51,25 @@ typedef struct _GstCapsFilterClass GstCapsFilterClass;
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struct _GstCapsFilter
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{
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GstElement element;
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GstPad *srcpad;
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GstPad *sinkpad;
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GstBaseTransform trans;
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GstCaps *filter_caps;
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};
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struct _GstCapsFilterClass
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{
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GstElementClass element_class;
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GstBaseTransformClass trans_class;
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};
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GType gst_capsfilter_get_type (void);
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enum
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{
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PROP_0,
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PROP_FILTER_CAPS
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};
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static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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@ -76,133 +81,74 @@ static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS_ANY);
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GST_DEBUG_CATEGORY_STATIC (gst_capsfilter_debug);
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#define GST_CAT_DEFAULT gst_capsfilter_debug
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GstElementDetails gst_capsfilter_details = GST_ELEMENT_DETAILS ("CapsFilter",
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"Generic",
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"Pass data without modification, limiting formats",
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"David Schleef <ds@schleef.org>");
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enum
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{
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PROP_0,
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PROP_FILTER_CAPS
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};
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#define _do_init(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_capsfilter_debug, "capsfilter", 0, "capsfilter element");
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GST_DEBUG_CATEGORY_INIT (gst_capsfilter_debug, "capsfilter", 0, \
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"capsfilter element");
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GST_BOILERPLATE_FULL (GstCapsFilter, gst_capsfilter, GstBaseTransform,
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GST_TYPE_BASE_TRANSFORM, _do_init);
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GST_BOILERPLATE_FULL (GstCapsFilter, gst_capsfilter, GstElement,
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GST_TYPE_ELEMENT, _do_init);
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static void gst_capsfilter_finalize (GObject * object);
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static void gst_capsfilter_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_capsfilter_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_capsfilter_dispose (GObject * object);
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static GstCaps *gst_capsfilter_transform_caps (GstBaseTransform * base,
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GstPad * pad, GstCaps * caps);
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static GstFlowReturn gst_capsfilter_transform_ip (GstBaseTransform * base,
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GstBuffer * buf);
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static GstCaps *gst_capsfilter_getcaps (GstPad * pad);
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static GstFlowReturn gst_capsfilter_chain (GstPad * pad, GstBuffer * buf);
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static void
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gst_capsfilter_base_init (gpointer g_class)
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{
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (gstelement_class,
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&srctemplate));
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gst_element_class_add_pad_template (gstelement_class,
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sinktemplate));
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gst_element_class_set_details (gstelement_class, &gst_capsfilter_details);
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}
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static void
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gst_capsfilter_finalize (GObject * object)
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{
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GstCapsFilter *capsfilter;
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capsfilter = GST_CAPSFILTER (object);
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gst_caps_unref (capsfilter->filter_caps);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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gst_element_class_set_details (element_class, &gst_capsfilter_details);
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}
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static void
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gst_capsfilter_class_init (GstCapsFilterClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseTransformClass *trans_class;
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gobject_class = G_OBJECT_CLASS (klass);
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gstelement_class = GST_ELEMENT_CLASS (klass);
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gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_capsfilter_set_property);
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gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_capsfilter_get_property);
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gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_capsfilter_finalize);
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gobject_class = (GObjectClass *) klass;
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gobject_class->set_property = gst_capsfilter_set_property;
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gobject_class->get_property = gst_capsfilter_get_property;
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gobject_class->dispose = gst_capsfilter_dispose;
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_FILTER_CAPS,
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g_param_spec_boxed ("filter_caps", _("Filter caps"),
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_("Restrict the possible allowed formats"),
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GST_TYPE_CAPS, G_PARAM_READWRITE));
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||||
|
||||
trans_class = (GstBaseTransformClass *) klass;
|
||||
trans_class->transform_caps = gst_capsfilter_transform_caps;
|
||||
trans_class->transform_ip = gst_capsfilter_transform_ip;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_capsfilter_init (GstCapsFilter * capsfilter)
|
||||
gst_capsfilter_init (GstCapsFilter * filter)
|
||||
{
|
||||
gst_element_create_all_pads (GST_ELEMENT (capsfilter));
|
||||
|
||||
capsfilter->srcpad = gst_element_get_pad (GST_ELEMENT (capsfilter), "src");
|
||||
capsfilter->sinkpad = gst_element_get_pad (GST_ELEMENT (capsfilter), "sink");
|
||||
|
||||
gst_pad_set_getcaps_function (capsfilter->srcpad, gst_capsfilter_getcaps);
|
||||
|
||||
gst_pad_set_getcaps_function (capsfilter->sinkpad, gst_capsfilter_getcaps);
|
||||
gst_pad_set_chain_function (capsfilter->sinkpad, gst_capsfilter_chain);
|
||||
|
||||
capsfilter->filter_caps = gst_caps_new_any ();
|
||||
}
|
||||
|
||||
static GstCaps *
|
||||
gst_capsfilter_getcaps (GstPad * pad)
|
||||
{
|
||||
GstPad *otherpad;
|
||||
GstCapsFilter *capsfilter = GST_CAPSFILTER (GST_OBJECT_PARENT (pad));
|
||||
GstCaps *caps;
|
||||
GstCaps *icaps;
|
||||
|
||||
otherpad = (pad == capsfilter->srcpad) ? capsfilter->sinkpad :
|
||||
capsfilter->srcpad;
|
||||
|
||||
caps = gst_pad_peer_get_caps (otherpad);
|
||||
if (caps == NULL)
|
||||
caps = gst_caps_new_any ();
|
||||
|
||||
icaps = gst_caps_intersect (caps, capsfilter->filter_caps);
|
||||
gst_caps_unref (caps);
|
||||
|
||||
return icaps;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_capsfilter_chain (GstPad * pad, GstBuffer * buf)
|
||||
{
|
||||
GstCapsFilter *capsfilter = GST_CAPSFILTER (GST_PAD_PARENT (pad));
|
||||
|
||||
gst_pad_push (capsfilter->srcpad, buf);
|
||||
|
||||
return GST_FLOW_OK;
|
||||
gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (filter), TRUE);
|
||||
filter->filter_caps = gst_caps_new_any ();
|
||||
}
|
||||
|
||||
static void
|
||||
gst_capsfilter_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstCapsFilter *capsfilter;
|
||||
|
||||
capsfilter = GST_CAPSFILTER (object);
|
||||
GstCapsFilter *capsfilter = GST_CAPSFILTER (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_FILTER_CAPS:{
|
||||
|
|
@ -230,9 +176,7 @@ static void
|
|||
gst_capsfilter_get_property (GObject * object, guint prop_id, GValue * value,
|
||||
GParamSpec * pspec)
|
||||
{
|
||||
GstCapsFilter *capsfilter;
|
||||
|
||||
capsfilter = GST_CAPSFILTER (object);
|
||||
GstCapsFilter *capsfilter = GST_CAPSFILTER (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_FILTER_CAPS:
|
||||
|
|
@ -243,3 +187,31 @@ gst_capsfilter_get_property (GObject * object, guint prop_id, GValue * value,
|
|||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_capsfilter_dispose (GObject * object)
|
||||
{
|
||||
GstCapsFilter *filter = GST_CAPSFILTER (object);
|
||||
|
||||
gst_caps_replace (&filter->filter_caps, NULL);
|
||||
|
||||
G_OBJECT_CLASS (parent_class)->dispose (object);
|
||||
}
|
||||
|
||||
static GstCaps *
|
||||
gst_capsfilter_transform_caps (GstBaseTransform * base, GstPad * pad,
|
||||
GstCaps * caps)
|
||||
{
|
||||
GstCapsFilter *capsfilter = GST_CAPSFILTER (base);
|
||||
GstCaps *ret;
|
||||
|
||||
ret = gst_caps_intersect (caps, capsfilter->filter_caps);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_capsfilter_transform_ip (GstBaseTransform * base, GstBuffer * buf)
|
||||
{
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -110,7 +110,8 @@ static gboolean gst_base_transform_src_activate_pull (GstPad * pad,
|
|||
gboolean active);
|
||||
static gboolean gst_base_transform_sink_activate_push (GstPad * pad,
|
||||
gboolean active);
|
||||
static guint gst_base_transform_get_size (GstBaseTransform * trans);
|
||||
static guint gst_base_transform_get_size (GstBaseTransform * trans,
|
||||
GstCaps * caps);
|
||||
|
||||
static GstElementStateReturn gst_base_transform_change_state (GstElement *
|
||||
element);
|
||||
|
|
@ -264,26 +265,26 @@ gst_base_transform_getcaps (GstPad * pad)
|
|||
GstCaps *temp;
|
||||
const GstCaps *templ;
|
||||
|
||||
GST_DEBUG_OBJECT (trans, "peer caps %" GST_PTR_FORMAT, caps);
|
||||
GST_DEBUG_OBJECT (pad, "peer caps %" GST_PTR_FORMAT, caps);
|
||||
|
||||
/* filtered against our padtemplate */
|
||||
templ = gst_pad_get_pad_template_caps (otherpad);
|
||||
GST_DEBUG_OBJECT (trans, "our template %" GST_PTR_FORMAT, templ);
|
||||
GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, templ);
|
||||
temp = gst_caps_intersect (caps, templ);
|
||||
GST_DEBUG_OBJECT (trans, "intersected %" GST_PTR_FORMAT, temp);
|
||||
GST_DEBUG_OBJECT (pad, "intersected %" GST_PTR_FORMAT, temp);
|
||||
gst_caps_unref (caps);
|
||||
/* then see what we can tranform this to */
|
||||
caps = gst_base_transform_transform_caps (trans, otherpad, temp);
|
||||
GST_DEBUG_OBJECT (trans, "transformed %" GST_PTR_FORMAT, caps);
|
||||
GST_DEBUG_OBJECT (pad, "transformed %" GST_PTR_FORMAT, caps);
|
||||
gst_caps_unref (temp);
|
||||
if (caps == NULL)
|
||||
goto done;
|
||||
|
||||
/* and filter against the template again */
|
||||
templ = gst_pad_get_pad_template_caps (pad);
|
||||
GST_DEBUG_OBJECT (trans, "our template %" GST_PTR_FORMAT, templ);
|
||||
GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, templ);
|
||||
temp = gst_caps_intersect (caps, templ);
|
||||
GST_DEBUG_OBJECT (trans, "intersected %" GST_PTR_FORMAT, temp);
|
||||
GST_DEBUG_OBJECT (pad, "intersected %" GST_PTR_FORMAT, temp);
|
||||
gst_caps_unref (caps);
|
||||
/* this is what we can do */
|
||||
caps = temp;
|
||||
|
|
@ -314,11 +315,6 @@ gst_base_transform_configure_caps (GstBaseTransform * trans, GstCaps * in,
|
|||
ret = klass->set_caps (trans, in, out);
|
||||
}
|
||||
|
||||
/* if all goes well, get the size of the output buffer */
|
||||
if (ret) {
|
||||
trans->out_size = gst_base_transform_get_size (trans);
|
||||
GST_DEBUG_OBJECT (trans, "output buffer size %d", trans->out_size);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
@ -427,10 +423,12 @@ gst_base_transform_setcaps (GstPad * pad, GstCaps * caps)
|
|||
GST_DEBUG_OBJECT (trans, "in_place: %d", trans->in_place);
|
||||
|
||||
/* see if we have to configure the element now */
|
||||
if (pad == trans->sinkpad)
|
||||
ret = gst_base_transform_configure_caps (trans, caps, othercaps);
|
||||
else
|
||||
ret = gst_base_transform_configure_caps (trans, othercaps, caps);
|
||||
if (!trans->delay_configure) {
|
||||
if (pad == trans->sinkpad)
|
||||
ret = gst_base_transform_configure_caps (trans, caps, othercaps);
|
||||
else
|
||||
ret = gst_base_transform_configure_caps (trans, othercaps, caps);
|
||||
}
|
||||
|
||||
done:
|
||||
if (otherpeer)
|
||||
|
|
@ -460,7 +458,7 @@ no_transform_possible:
|
|||
}
|
||||
could_not_fixate:
|
||||
{
|
||||
GST_DEBUG_OBJECT (trans, "FAILED to fixate %" GST_PTR_FORMAT, othercaps);
|
||||
GST_ERROR_OBJECT (trans, "FAILED to fixate %" GST_PTR_FORMAT, othercaps);
|
||||
ret = FALSE;
|
||||
goto done;
|
||||
}
|
||||
|
|
@ -474,15 +472,15 @@ peer_no_accept:
|
|||
}
|
||||
|
||||
static guint
|
||||
gst_base_transform_get_size (GstBaseTransform * trans)
|
||||
gst_base_transform_get_size (GstBaseTransform * trans, GstCaps * caps)
|
||||
{
|
||||
guint res = -1;
|
||||
GstBaseTransformClass *bclass;
|
||||
|
||||
bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
|
||||
if (bclass->get_size) {
|
||||
res = bclass->get_size (trans);
|
||||
GST_DEBUG_OBJECT (trans, "get size function returned %d", res);
|
||||
res = bclass->get_size (trans, caps);
|
||||
GST_DEBUG_OBJECT (trans, "get size(%p) returned %d", caps, res);
|
||||
}
|
||||
|
||||
return res;
|
||||
|
|
@ -494,21 +492,74 @@ gst_base_transform_buffer_alloc (GstPad * pad, guint64 offset, guint size,
|
|||
{
|
||||
GstBaseTransform *trans;
|
||||
GstFlowReturn res;
|
||||
guint got_size;
|
||||
|
||||
trans = GST_BASE_TRANSFORM (gst_pad_get_parent (pad));
|
||||
|
||||
*buf = NULL;
|
||||
|
||||
if (trans->in_place) {
|
||||
/* we can only proxy the bufferpool if we do in_place transforms */
|
||||
/* request a buffer with the same caps */
|
||||
res = gst_pad_alloc_buffer (trans->srcpad, offset, size, caps, buf);
|
||||
} else {
|
||||
/* else let the default alloc function allocate a buffer */
|
||||
*buf = NULL;
|
||||
/* if we are configured, request a buffer with the src caps */
|
||||
GstCaps *srccaps = gst_pad_get_negotiated_caps (trans->srcpad);
|
||||
|
||||
if (!srccaps)
|
||||
goto not_configured;
|
||||
|
||||
got_size = gst_base_transform_get_size (trans, srccaps);
|
||||
if (got_size == -1) {
|
||||
gst_caps_unref (srccaps);
|
||||
goto unknown_size;
|
||||
}
|
||||
|
||||
res = gst_pad_alloc_buffer (trans->srcpad, offset, got_size, srccaps, buf);
|
||||
gst_caps_unref (srccaps);
|
||||
}
|
||||
|
||||
if (res == GST_FLOW_OK && !trans->in_place) {
|
||||
/* note that we might have been in place before, but calling the
|
||||
alloc_buffer caused setcaps to switch us out of in_place -- in any case
|
||||
the alloc_buffer served to transmit caps information but we can't use the
|
||||
buffer. fall through and allocate a buffer corresponding to our sink
|
||||
caps, if any */
|
||||
GstCaps *sinkcaps = gst_pad_get_negotiated_caps (trans->sinkpad);
|
||||
|
||||
if (!sinkcaps)
|
||||
goto not_configured;
|
||||
|
||||
got_size = gst_base_transform_get_size (trans, sinkcaps);
|
||||
if (got_size == -1) {
|
||||
gst_caps_unref (sinkcaps);
|
||||
goto unknown_size;
|
||||
}
|
||||
|
||||
*buf = gst_buffer_new_and_alloc (got_size);
|
||||
gst_buffer_set_caps (*buf, sinkcaps);
|
||||
GST_BUFFER_OFFSET (*buf) = offset;
|
||||
res = GST_FLOW_OK;
|
||||
|
||||
gst_caps_unref (sinkcaps);
|
||||
}
|
||||
|
||||
gst_object_unref (trans);
|
||||
|
||||
return res;
|
||||
|
||||
not_configured:
|
||||
{
|
||||
/* let the default allocator handle it */
|
||||
*buf = NULL;
|
||||
gst_object_unref (trans);
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
unknown_size:
|
||||
{
|
||||
/* let the default allocator handle it */
|
||||
*buf = NULL;
|
||||
gst_object_unref (trans);
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -584,16 +635,25 @@ gst_base_transform_handle_buffer (GstBaseTransform * trans, GstBuffer * inbuf,
|
|||
/* figure out the output size */
|
||||
if (trans->out_size == -1) {
|
||||
/* ask subclass */
|
||||
if ((trans->out_size = gst_base_transform_get_size (trans)) == -1)
|
||||
/* else we have an error */
|
||||
trans->out_size = gst_base_transform_get_size (trans,
|
||||
GST_PAD_CAPS (trans->srcpad));
|
||||
if (trans->out_size == -1)
|
||||
/* we have an error */
|
||||
goto no_size;
|
||||
}
|
||||
|
||||
/* we cannot reconfigure the element yet as we are still processing
|
||||
* the old buffer. We will therefore delay the reconfiguration of the
|
||||
* element until we have processed this last buffer. */
|
||||
trans->delay_configure = TRUE;
|
||||
|
||||
/* no in place transform, get buffer, this might renegotiate. */
|
||||
ret = gst_pad_alloc_buffer (trans->srcpad,
|
||||
GST_BUFFER_OFFSET (inbuf), trans->out_size,
|
||||
GST_PAD_CAPS (trans->srcpad), outbuf);
|
||||
|
||||
trans->delay_configure = FALSE;
|
||||
|
||||
if (ret != GST_FLOW_OK)
|
||||
goto no_buffer;
|
||||
|
||||
|
|
|
|||
|
|
@ -54,6 +54,7 @@ struct _GstBaseTransform {
|
|||
|
||||
gboolean in_place;
|
||||
guint out_size;
|
||||
gboolean delay_configure;
|
||||
};
|
||||
|
||||
struct _GstBaseTransformClass {
|
||||
|
|
@ -70,8 +71,8 @@ struct _GstBaseTransformClass {
|
|||
gboolean (*set_caps) (GstBaseTransform *trans, GstCaps *incaps,
|
||||
GstCaps *outcaps);
|
||||
|
||||
/* get the size of the output buffer, -1 on error */
|
||||
guint (*get_size) (GstBaseTransform *trans);
|
||||
/* get the byte size of a given caps, -1 on error */
|
||||
guint (*get_size) (GstBaseTransform *trans, GstCaps *caps);
|
||||
|
||||
/* start and stop processing, ideal for opening/closing the resource */
|
||||
gboolean (*start) (GstBaseTransform *trans);
|
||||
|
|
|
|||
|
|
@ -20,16 +20,19 @@
|
|||
* Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
# include "config.h"
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
#include "../gst-i18n-lib.h"
|
||||
#include <gst/gstmarshal.h>
|
||||
#include <gst/gst.h>
|
||||
#include <gst/base/gstbasetransform.h>
|
||||
|
||||
|
||||
GstElementDetails gst_capsfilter_details = GST_ELEMENT_DETAILS ("CapsFilter",
|
||||
"Generic",
|
||||
"Pass data without modification, limiting formats",
|
||||
"David Schleef <ds@schleef.org>");
|
||||
|
||||
|
||||
#define GST_TYPE_CAPSFILTER \
|
||||
|
|
@ -48,23 +51,25 @@ typedef struct _GstCapsFilterClass GstCapsFilterClass;
|
|||
|
||||
struct _GstCapsFilter
|
||||
{
|
||||
GstElement element;
|
||||
|
||||
GstPad *srcpad;
|
||||
GstPad *sinkpad;
|
||||
GstBaseTransform trans;
|
||||
|
||||
GstCaps *filter_caps;
|
||||
};
|
||||
|
||||
struct _GstCapsFilterClass
|
||||
{
|
||||
GstElementClass element_class;
|
||||
|
||||
GstBaseTransformClass trans_class;
|
||||
};
|
||||
|
||||
GType gst_capsfilter_get_type (void);
|
||||
|
||||
|
||||
enum
|
||||
{
|
||||
PROP_0,
|
||||
PROP_FILTER_CAPS
|
||||
};
|
||||
|
||||
|
||||
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
|
||||
GST_PAD_SINK,
|
||||
|
|
@ -76,133 +81,74 @@ static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
|
|||
GST_PAD_ALWAYS,
|
||||
GST_STATIC_CAPS_ANY);
|
||||
|
||||
|
||||
GST_DEBUG_CATEGORY_STATIC (gst_capsfilter_debug);
|
||||
#define GST_CAT_DEFAULT gst_capsfilter_debug
|
||||
|
||||
GstElementDetails gst_capsfilter_details = GST_ELEMENT_DETAILS ("CapsFilter",
|
||||
"Generic",
|
||||
"Pass data without modification, limiting formats",
|
||||
"David Schleef <ds@schleef.org>");
|
||||
|
||||
enum
|
||||
{
|
||||
PROP_0,
|
||||
PROP_FILTER_CAPS
|
||||
};
|
||||
|
||||
|
||||
#define _do_init(bla) \
|
||||
GST_DEBUG_CATEGORY_INIT (gst_capsfilter_debug, "capsfilter", 0, "capsfilter element");
|
||||
GST_DEBUG_CATEGORY_INIT (gst_capsfilter_debug, "capsfilter", 0, \
|
||||
"capsfilter element");
|
||||
|
||||
GST_BOILERPLATE_FULL (GstCapsFilter, gst_capsfilter, GstBaseTransform,
|
||||
GST_TYPE_BASE_TRANSFORM, _do_init);
|
||||
|
||||
GST_BOILERPLATE_FULL (GstCapsFilter, gst_capsfilter, GstElement,
|
||||
GST_TYPE_ELEMENT, _do_init);
|
||||
|
||||
static void gst_capsfilter_finalize (GObject * object);
|
||||
static void gst_capsfilter_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec);
|
||||
static void gst_capsfilter_get_property (GObject * object, guint prop_id,
|
||||
GValue * value, GParamSpec * pspec);
|
||||
static void gst_capsfilter_dispose (GObject * object);
|
||||
static GstCaps *gst_capsfilter_transform_caps (GstBaseTransform * base,
|
||||
GstPad * pad, GstCaps * caps);
|
||||
static GstFlowReturn gst_capsfilter_transform_ip (GstBaseTransform * base,
|
||||
GstBuffer * buf);
|
||||
|
||||
static GstCaps *gst_capsfilter_getcaps (GstPad * pad);
|
||||
static GstFlowReturn gst_capsfilter_chain (GstPad * pad, GstBuffer * buf);
|
||||
|
||||
static void
|
||||
gst_capsfilter_base_init (gpointer g_class)
|
||||
{
|
||||
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
|
||||
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
||||
|
||||
gst_element_class_add_pad_template (gstelement_class,
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&srctemplate));
|
||||
gst_element_class_add_pad_template (gstelement_class,
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&sinktemplate));
|
||||
gst_element_class_set_details (gstelement_class, &gst_capsfilter_details);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_capsfilter_finalize (GObject * object)
|
||||
{
|
||||
GstCapsFilter *capsfilter;
|
||||
|
||||
capsfilter = GST_CAPSFILTER (object);
|
||||
|
||||
gst_caps_unref (capsfilter->filter_caps);
|
||||
|
||||
G_OBJECT_CLASS (parent_class)->finalize (object);
|
||||
gst_element_class_set_details (element_class, &gst_capsfilter_details);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_capsfilter_class_init (GstCapsFilterClass * klass)
|
||||
{
|
||||
GObjectClass *gobject_class;
|
||||
GstElementClass *gstelement_class;
|
||||
GstBaseTransformClass *trans_class;
|
||||
|
||||
gobject_class = G_OBJECT_CLASS (klass);
|
||||
gstelement_class = GST_ELEMENT_CLASS (klass);
|
||||
|
||||
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_capsfilter_set_property);
|
||||
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_capsfilter_get_property);
|
||||
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_capsfilter_finalize);
|
||||
gobject_class = (GObjectClass *) klass;
|
||||
gobject_class->set_property = gst_capsfilter_set_property;
|
||||
gobject_class->get_property = gst_capsfilter_get_property;
|
||||
gobject_class->dispose = gst_capsfilter_dispose;
|
||||
|
||||
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_FILTER_CAPS,
|
||||
g_param_spec_boxed ("filter_caps", _("Filter caps"),
|
||||
_("Restrict the possible allowed formats"),
|
||||
GST_TYPE_CAPS, G_PARAM_READWRITE));
|
||||
|
||||
trans_class = (GstBaseTransformClass *) klass;
|
||||
trans_class->transform_caps = gst_capsfilter_transform_caps;
|
||||
trans_class->transform_ip = gst_capsfilter_transform_ip;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_capsfilter_init (GstCapsFilter * capsfilter)
|
||||
gst_capsfilter_init (GstCapsFilter * filter)
|
||||
{
|
||||
gst_element_create_all_pads (GST_ELEMENT (capsfilter));
|
||||
|
||||
capsfilter->srcpad = gst_element_get_pad (GST_ELEMENT (capsfilter), "src");
|
||||
capsfilter->sinkpad = gst_element_get_pad (GST_ELEMENT (capsfilter), "sink");
|
||||
|
||||
gst_pad_set_getcaps_function (capsfilter->srcpad, gst_capsfilter_getcaps);
|
||||
|
||||
gst_pad_set_getcaps_function (capsfilter->sinkpad, gst_capsfilter_getcaps);
|
||||
gst_pad_set_chain_function (capsfilter->sinkpad, gst_capsfilter_chain);
|
||||
|
||||
capsfilter->filter_caps = gst_caps_new_any ();
|
||||
}
|
||||
|
||||
static GstCaps *
|
||||
gst_capsfilter_getcaps (GstPad * pad)
|
||||
{
|
||||
GstPad *otherpad;
|
||||
GstCapsFilter *capsfilter = GST_CAPSFILTER (GST_OBJECT_PARENT (pad));
|
||||
GstCaps *caps;
|
||||
GstCaps *icaps;
|
||||
|
||||
otherpad = (pad == capsfilter->srcpad) ? capsfilter->sinkpad :
|
||||
capsfilter->srcpad;
|
||||
|
||||
caps = gst_pad_peer_get_caps (otherpad);
|
||||
if (caps == NULL)
|
||||
caps = gst_caps_new_any ();
|
||||
|
||||
icaps = gst_caps_intersect (caps, capsfilter->filter_caps);
|
||||
gst_caps_unref (caps);
|
||||
|
||||
return icaps;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_capsfilter_chain (GstPad * pad, GstBuffer * buf)
|
||||
{
|
||||
GstCapsFilter *capsfilter = GST_CAPSFILTER (GST_PAD_PARENT (pad));
|
||||
|
||||
gst_pad_push (capsfilter->srcpad, buf);
|
||||
|
||||
return GST_FLOW_OK;
|
||||
gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (filter), TRUE);
|
||||
filter->filter_caps = gst_caps_new_any ();
|
||||
}
|
||||
|
||||
static void
|
||||
gst_capsfilter_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstCapsFilter *capsfilter;
|
||||
|
||||
capsfilter = GST_CAPSFILTER (object);
|
||||
GstCapsFilter *capsfilter = GST_CAPSFILTER (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_FILTER_CAPS:{
|
||||
|
|
@ -230,9 +176,7 @@ static void
|
|||
gst_capsfilter_get_property (GObject * object, guint prop_id, GValue * value,
|
||||
GParamSpec * pspec)
|
||||
{
|
||||
GstCapsFilter *capsfilter;
|
||||
|
||||
capsfilter = GST_CAPSFILTER (object);
|
||||
GstCapsFilter *capsfilter = GST_CAPSFILTER (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_FILTER_CAPS:
|
||||
|
|
@ -243,3 +187,31 @@ gst_capsfilter_get_property (GObject * object, guint prop_id, GValue * value,
|
|||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_capsfilter_dispose (GObject * object)
|
||||
{
|
||||
GstCapsFilter *filter = GST_CAPSFILTER (object);
|
||||
|
||||
gst_caps_replace (&filter->filter_caps, NULL);
|
||||
|
||||
G_OBJECT_CLASS (parent_class)->dispose (object);
|
||||
}
|
||||
|
||||
static GstCaps *
|
||||
gst_capsfilter_transform_caps (GstBaseTransform * base, GstPad * pad,
|
||||
GstCaps * caps)
|
||||
{
|
||||
GstCapsFilter *capsfilter = GST_CAPSFILTER (base);
|
||||
GstCaps *ret;
|
||||
|
||||
ret = gst_caps_intersect (caps, capsfilter->filter_caps);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_capsfilter_transform_ip (GstBaseTransform * base, GstBuffer * buf)
|
||||
{
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue