/
pad.go
135 lines (112 loc) · 2.96 KB
/
pad.go
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package gst
/*
#include <stdlib.h>
#include <gst/gst.h>
*/
import "C"
import (
"unsafe"
"github.com/ziutek/glib"
)
type PadLinkReturn C.GstPadLinkReturn
const (
PAD_LINK_OK = PadLinkReturn(C.GST_PAD_LINK_OK)
PAD_LINK_WRONG_HIERARCHY = PadLinkReturn(C.GST_PAD_LINK_WRONG_HIERARCHY)
PAD_LINK_WAS_LINKED = PadLinkReturn(C.GST_PAD_LINK_WAS_LINKED)
PAD_LINK_WRONG_DIRECTION = PadLinkReturn(C.GST_PAD_LINK_WRONG_DIRECTION)
PAD_LINK_NOFORMAT = PadLinkReturn(C.GST_PAD_LINK_NOFORMAT)
PAD_LINK_NOSCHED = PadLinkReturn(C.GST_PAD_LINK_NOSCHED)
PAD_LINK_REFUSED = PadLinkReturn(C.GST_PAD_LINK_REFUSED)
)
func (p PadLinkReturn) String() string {
switch p {
case PAD_LINK_OK:
return "PAD_LINK_OK"
case PAD_LINK_WRONG_HIERARCHY:
return "PAD_LINK_WRONG_HIERARCHY"
case PAD_LINK_WAS_LINKED:
return "PAD_LINK_WAS_LINKED"
case PAD_LINK_WRONG_DIRECTION:
return "PAD_LINK_WRONG_DIRECTION"
case PAD_LINK_NOFORMAT:
return "PAD_LINK_NOFORMAT"
case PAD_LINK_NOSCHED:
return "PAD_LINK_NOSCHED"
case PAD_LINK_REFUSED:
return "PAD_LINK_REFUSED"
}
panic("Wrong value of PadLinkReturn variable")
}
type PadDirection C.GstPadDirection
const (
PAD_UNKNOWN = PadDirection(C.GST_PAD_UNKNOWN)
PAD_SRC = PadDirection(C.GST_PAD_SRC)
PAD_SINK = PadDirection(C.GST_PAD_SINK)
)
func (p PadDirection) g() C.GstPadDirection {
return C.GstPadDirection(p)
}
func (p PadDirection) String() string {
switch p {
case PAD_UNKNOWN:
return "PAD_UNKNOWN"
case PAD_SRC:
return "PAD_SRC"
case PAD_SINK:
return "PAD_SINK"
}
panic("Wrong value of PadDirection variable")
}
type Pad struct {
GstObj
}
func (p *Pad) g() *C.GstPad {
return (*C.GstPad)(p.GetPtr())
}
func (p *Pad) AsPad() *Pad {
return p
}
func (p *Pad) CanLink(sink_pad *Pad) bool {
return C.gst_pad_can_link(p.g(), sink_pad.g()) != 0
}
func (p *Pad) Link(sink_pad *Pad) PadLinkReturn {
return PadLinkReturn(C.gst_pad_link(p.g(), sink_pad.g()))
}
func (p *Pad) GetCurrentCaps() *Caps {
// unref the caps when you're done
return (*Caps)( C.gst_pad_get_current_caps((*C.GstPad)(p.GetPtr())) )
}
type GhostPad struct {
Pad
}
func (p *GhostPad) g() *C.GstGhostPad {
return (*C.GstGhostPad)(p.GetPtr())
}
func (p *GhostPad) AsGhostPad() *GhostPad {
return p
}
func (p *GhostPad) SetTarget(new_target *Pad) bool {
return C.gst_ghost_pad_set_target(p.g(), new_target.g()) != 0
}
func (p *GhostPad) GetTarget() *Pad {
r := new(Pad)
r.SetPtr(glib.Pointer(C.gst_ghost_pad_get_target(p.g())))
return r
}
func (p *GhostPad) Construct() bool {
return C.gst_ghost_pad_construct(p.g()) != 0
}
func NewGhostPad(name string, target *Pad) *GhostPad {
s := (*C.gchar)(C.CString(name))
defer C.free(unsafe.Pointer(s))
p := new(GhostPad)
p.SetPtr(glib.Pointer(C.gst_ghost_pad_new(s, target.g())))
return p
}
func NewGhostPadNoTarget(name string, dir PadDirection) *GhostPad {
s := (*C.gchar)(C.CString(name))
defer C.free(unsafe.Pointer(s))
p := new(GhostPad)
p.SetPtr(glib.Pointer(C.gst_ghost_pad_new_no_target(s, dir.g())))
return p
}