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68 lines
1.5 KiB
Go
68 lines
1.5 KiB
Go
package gstwebrtc
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// #include "gst.go.h"
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import "C"
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import (
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"errors"
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"unsafe"
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"github.com/go-gst/go-glib/glib"
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)
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func init() {
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tm := []glib.TypeMarshaler{
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{T: glib.Type(C.GST_TYPE_WEBRTC_DATA_CHANNEL), F: marshalDataChannel},
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}
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glib.RegisterGValueMarshalers(tm)
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}
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// DataChannel is a representation of GstWebRTCDataChannel. See https://gstreamer.freedesktop.org/documentation/webrtclib/gstwebrtc-datachannel.html?gi-language=c
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//
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// there is no constructor for DataChannel, you can get it from webrtcbin signals
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type DataChannel struct {
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*glib.Object
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}
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func (dc *DataChannel) Close() {
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C.gst_webrtc_data_channel_close((*C.GstWebRTCDataChannel)(dc.Native()))
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}
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func (dc *DataChannel) SendData(data []byte) error {
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var gerr *C.GError
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addr := unsafe.SliceData(data)
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cbytes := C.g_bytes_new(C.gconstpointer(addr), C.gsize(len(data)))
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defer C.g_bytes_unref(cbytes)
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C.gst_webrtc_data_channel_send_data_full((*C.GstWebRTCDataChannel)(dc.Native()), cbytes, &gerr)
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if gerr != nil {
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defer C.g_error_free((*C.GError)(gerr))
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errMsg := C.GoString(gerr.message)
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return errors.New(errMsg)
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}
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return nil
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}
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// ToGValue implements glib.ValueTransformer
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func (dc *DataChannel) ToGValue() (*glib.Value, error) {
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val, err := glib.ValueInit(glib.Type(C.GST_TYPE_WEBRTC_DATA_CHANNEL))
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if err != nil {
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return nil, err
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}
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val.SetInstance(unsafe.Pointer(dc.GObject))
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return val, nil
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}
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func marshalDataChannel(p unsafe.Pointer) (interface{}, error) {
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c := C.g_value_get_object((*C.GValue)(p))
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return &DataChannel{
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Object: glib.Take(unsafe.Pointer(c)),
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}, nil
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}
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