major move of all glib specific bindings and extendable objects from go runtime to go-glib package

Makefile

@@ -1,15 +1,15 @@
 GO_VERSION ?= 1.15
 DOCKER_IMAGE ?= ghcr.io/tinyzimmer/go-gst:$(GO_VERSION)
-GOLANGCI_VERSION ?= 1.31.0
+
-GOLANGCI_LINT ?= _bin/golangci-lint
+GOPATH ?= $(shell go env GOPATH)
-GOLANGCI_DOWNLOAD_URL ?= https://github.com/golangci/golangci-lint/releases/download/v${GOLANGCI_VERSION}/golangci-lint-${GOLANGCI_VERSION}-$(shell uname | tr A-Z a-z)-amd64.tar.gz
+GOBIN  ?= $(GOPATH)/bin
+GOLANGCI_VERSION ?= v1.33.0
+GOLANGCI_LINT    ?= $(GOBIN)/golangci-lint
+
 PLUGIN_GEN ?= "$(shell go env GOPATH)/bin/gst-plugin-gen"
 
 $(GOLANGCI_LINT):
-	mkdir -p $(dir $(GOLANGCI_LINT))
+        curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOBIN) $(GOLANGCI_VERSION)
-	cd $(dir $(GOLANGCI_LINT)) && curl -JL $(GOLANGCI_DOWNLOAD_URL) | tar xzf -
-	chmod +x $(dir $(GOLANGCI_LINT))golangci-lint-$(GOLANGCI_VERSION)-$(shell uname | tr A-Z a-z)-amd64/golangci-lint
-	ln -s golangci-lint-$(GOLANGCI_VERSION)-$(shell uname | tr A-Z a-z)-amd64/golangci-lint $(GOLANGCI_LINT)
 
 lint: $(GOLANGCI_LINT)
 	$(GOLANGCI_LINT) run -v

examples/common.go

@@ -3,12 +3,12 @@ package examples
 import (
 	"fmt"
 
-	"github.com/tinyzimmer/go-gst/gst"
+	"github.com/tinyzimmer/go-glib/glib"
 )
 
 // Run is used to wrap the given function in a main loop and print any error
 func Run(f func() error) {
-	mainLoop := gst.NewMainLoop(gst.DefaultMainContext(), false)
+	mainLoop := glib.NewMainLoop(glib.MainContextDefault(), false)
 
 	defer mainLoop.Unref()
 
@@ -24,8 +24,8 @@ func Run(f func() error) {
 
 // RunLoop is used to wrap the given function in a main loop and print any error.
 // The main loop itself is passed to the function for more control over exiting.
-func RunLoop(f func(*gst.MainLoop) error) {
+func RunLoop(f func(*glib.MainLoop) error) {
-	mainLoop := gst.NewMainLoop(gst.DefaultMainContext(), false)
+	mainLoop := glib.NewMainLoop(glib.MainContextDefault(), false)
 	defer mainLoop.Unref()
 
 	if err := f(mainLoop); err != nil {

examples/custom_events/main.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/examples"
 	"github.com/tinyzimmer/go-gst/gst"
 )
@@ -77,7 +78,7 @@ func createPipeline() (*gst.Pipeline, error) {
 	return pipeline, nil
 }
 
-func mainLoop(loop *gst.MainLoop, pipeline *gst.Pipeline) error {
+func mainLoop(loop *glib.MainLoop, pipeline *gst.Pipeline) error {
 	// Create a watch on the pipeline to kill the main loop when EOS is received
 	pipeline.GetPipelineBus().AddWatch(func(msg *gst.Message) bool {
 		switch msg.Type() {
@@ -118,7 +119,7 @@ func mainLoop(loop *gst.MainLoop, pipeline *gst.Pipeline) error {
 }
 
 func main() {
-	examples.RunLoop(func(loop *gst.MainLoop) error {
+	examples.RunLoop(func(loop *glib.MainLoop) error {
 		var pipeline *gst.Pipeline
 		var err error
 		if pipeline, err = createPipeline(); err != nil {

examples/decodebin/main.go

@@ -38,6 +38,7 @@ import (
 	"os"
 	"strings"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/examples"
 	"github.com/tinyzimmer/go-gst/gst"
 )
@@ -152,7 +153,7 @@ func buildPipeline() (*gst.Pipeline, error) {
 	return pipeline, nil
 }
 
-func runPipeline(loop *gst.MainLoop, pipeline *gst.Pipeline) error {
+func runPipeline(loop *glib.MainLoop, pipeline *gst.Pipeline) error {
 	// Start the pipeline
 	pipeline.SetState(gst.StatePlaying)
 	// Stop and cleanup the pipeline when we exit
@@ -196,7 +197,7 @@ func main() {
 		flag.Usage()
 		os.Exit(1)
 	}
-	examples.RunLoop(func(loop *gst.MainLoop) error {
+	examples.RunLoop(func(loop *glib.MainLoop) error {
 		pipeline, err := buildPipeline()
 		if err != nil {
 			return err

examples/events/main.go

@@ -24,11 +24,12 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/examples"
 	"github.com/tinyzimmer/go-gst/gst"
 )
 
-func runPipeline(loop *gst.MainLoop) error {
+func runPipeline(loop *glib.MainLoop) error {
 	gst.Init(nil)
 
 	// Build a pipeline with fake audio data going to a fakesink
@@ -109,7 +110,7 @@ func runPipeline(loop *gst.MainLoop) error {
 }
 
 func main() {
-	examples.RunLoop(func(loop *gst.MainLoop) error {
+	examples.RunLoop(func(loop *glib.MainLoop) error {
 		return runPipeline(loop)
 	})
 }

examples/gif-encoder/main.go

@@ -13,6 +13,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/examples"
 	"github.com/tinyzimmer/go-gst/gst"
 	"github.com/tinyzimmer/go-gst/gst/app"
@@ -25,7 +26,7 @@ var outFile string
 const width = 320
 const height = 240
 
-func encodeGif(mainLoop *gst.MainLoop) error {
+func encodeGif(mainLoop *glib.MainLoop) error {
 	gst.Init(nil)
 
 	// Initialize an empty buffer for the encoded gif images.

examples/launch/main.go

@@ -9,11 +9,12 @@ import (
 	"os"
 	"strings"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/examples"
 	"github.com/tinyzimmer/go-gst/gst"
 )
 
-func runPipeline(mainLoop *gst.MainLoop) error {
+func runPipeline(mainLoop *glib.MainLoop) error {
 	gst.Init(nil)
 
 	if len(os.Args) == 1 {
@@ -60,7 +61,7 @@ func runPipeline(mainLoop *gst.MainLoop) error {
 }
 
 func main() {
-	examples.RunLoop(func(loop *gst.MainLoop) error {
+	examples.RunLoop(func(loop *glib.MainLoop) error {
 		return runPipeline(loop)
 	})
 }

examples/pad-probes/main.go

@@ -15,11 +15,12 @@ import (
 	"math"
 	"time"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/examples"
 	"github.com/tinyzimmer/go-gst/gst"
 )
 
-func padProbes(mainLoop *gst.MainLoop) error {
+func padProbes(mainLoop *glib.MainLoop) error {
 	gst.Init(nil)
 
 	// Parse the pipeline we want to probe from a static in-line string.

examples/playbin/main.go

@@ -16,13 +16,14 @@ import (
 	"fmt"
 	"os"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/examples"
 	"github.com/tinyzimmer/go-gst/gst"
 )
 
 var srcURI string
 
-func playbin(mainLoop *gst.MainLoop) error {
+func playbin(mainLoop *glib.MainLoop) error {
 	if len(os.Args) < 2 {
 		return errors.New("Usage: playbin <uri>")
 	}

examples/plugins/gofilesink/filesink.go

@@ -59,13 +59,13 @@ var CAT = gst.NewDebugCategory(
 // This element only has a single property, the location of the file to write to.
 // When getting and setting properties later on, you will reference them by their index in
 // this list.
-var properties = []*gst.ParamSpec{
+var properties = []*glib.ParamSpec{
-	gst.NewStringParam(
+	glib.NewStringParam(
 		"location",                      // The name of the parameter
 		"File Location",                 // The long name for the parameter
 		"Location to write the file to", // A blurb about the parameter
 		nil,                             // A default value for the parameter
-		gst.ParameterReadWrite,          // Flags for the parameter
+		glib.ParameterReadWrite,         // Flags for the parameter
 	),
 }
 
@@ -85,7 +85,7 @@ type settings struct {
 	location string
 }
 
-// Finally a structure is defined that implements (at a minimum) the gst.GoElement interface.
+// Finally a structure is defined that implements (at a minimum) the glib.GoObject interface.
 // It is possible to signal to the bindings to inherit from other classes or implement other
 // interfaces via the registration and TypeInit processes.
 type fileSink struct {
@@ -109,10 +109,9 @@ func (f *fileSink) setLocation(path string) error {
 // element and its capabilities with the type system. These are the minimum methods that
 // should be implemented by an element.
 
-// Every element needs to provide its own constructor that returns an initialized
+// Every element needs to provide its own constructor that returns an initialized glib.GoObjectSubclass
-// gst.GoElement implementation. Here we simply create a new fileSink with zeroed settings
+// implementation. Here we simply create a new fileSink with zeroed settings and state objects.
-// and state objects.
+func (f *fileSink) New() glib.GoObjectSubclass {
-func (f *fileSink) New() gst.GoElement {
 	CAT.Log(gst.LevelLog, "Initializing new fileSink object")
 	return &fileSink{
 		settings: &settings{},
@@ -122,29 +121,30 @@ func (f *fileSink) New() gst.GoElement {
 
 // The TypeInit method should register any additional interfaces provided by the element.
 // In this example we signal to the type system that we also implement the GstURIHandler interface.
-func (f *fileSink) TypeInit(instance *gst.TypeInstance) {
+func (f *fileSink) TypeInit(instance *glib.TypeInstance) {
 	CAT.Log(gst.LevelLog, "Adding URIHandler interface to type")
 	instance.AddInterface(gst.InterfaceURIHandler)
 }
 
 // The ClassInit method should specify the metadata for this element and add any pad templates
 // and properties.
-func (f *fileSink) ClassInit(klass *gst.ElementClass) {
+func (f *fileSink) ClassInit(klass *glib.ObjectClass) {
 	CAT.Log(gst.LevelLog, "Initializing gofilesink class")
-	klass.SetMetadata(
+	class := gst.ToElementClass(klass)
+	class.SetMetadata(
 		"File Sink",
 		"Sink/File",
 		"Write stream to a file",
 		"Avi Zimmerman <avi.zimmerman@gmail.com>",
 	)
 	CAT.Log(gst.LevelLog, "Adding sink pad template and properties to class")
-	klass.AddPadTemplate(gst.NewPadTemplate(
+	class.AddPadTemplate(gst.NewPadTemplate(
 		"sink",
 		gst.PadDirectionSink,
 		gst.PadPresenceAlways,
 		gst.NewAnyCaps(),
 	))
-	klass.InstallProperties(properties)
+	class.InstallProperties(properties)
 }
 
 // Object implementations are used during the initialization of an element. The

examples/plugins/gofilesrc/filesrc.go

@@ -59,13 +59,13 @@ var CAT = gst.NewDebugCategory(
 // This element only has a single property, the location of the file to read from.
 // When getting and setting properties later on, you will reference them by their index in
 // this list.
-var properties = []*gst.ParamSpec{
+var properties = []*glib.ParamSpec{
-	gst.NewStringParam(
+	glib.NewStringParam(
 		"location",                          // The name of the parameter
 		"File Location",                     // The long name for the parameter
 		"Location of the file to read from", // A blurb about the parameter
 		nil,                                 // A default value for the parameter
-		gst.ParameterReadWrite,              // Flags for the parameter
+		glib.ParameterReadWrite,             // Flags for the parameter
 	),
 }
 
@@ -114,9 +114,8 @@ func (f *fileSrc) setLocation(path string) error {
 // should be implemented by an element.
 
 // Every element needs to provide its own constructor that returns an initialized
-// gst.GoElement implementation. Here we simply create a new fileSrc with zeroed settings
+// glib.GoObjectSubclass and state objects.
-// and state objects.
+func (f *fileSrc) New() glib.GoObjectSubclass {
-func (f *fileSrc) New() gst.GoElement {
 	CAT.Log(gst.LevelLog, "Initializing new fileSrc object")
 	return &fileSrc{
 		settings: &settings{},
@@ -126,29 +125,30 @@ func (f *fileSrc) New() gst.GoElement {
 
 // The TypeInit method should register any additional interfaces provided by the element.
 // In this example we signal to the type system that we also implement the GstURIHandler interface.
-func (f *fileSrc) TypeInit(instance *gst.TypeInstance) {
+func (f *fileSrc) TypeInit(instance *glib.TypeInstance) {
 	CAT.Log(gst.LevelLog, "Adding URIHandler interface to type")
 	instance.AddInterface(gst.InterfaceURIHandler)
 }
 
 // The ClassInit method should specify the metadata for this element and add any pad templates
 // and properties.
-func (f *fileSrc) ClassInit(klass *gst.ElementClass) {
+func (f *fileSrc) ClassInit(klass *glib.ObjectClass) {
 	CAT.Log(gst.LevelLog, "Initializing gofilesrc class")
-	klass.SetMetadata(
+	class := gst.ToElementClass(klass)
+	class.SetMetadata(
 		"File Source",
 		"Source/File",
 		"Read stream from a file",
 		"Avi Zimmerman <avi.zimmerman@gmail.com>",
 	)
 	CAT.Log(gst.LevelLog, "Adding src pad template and properties to class")
-	klass.AddPadTemplate(gst.NewPadTemplate(
+	class.AddPadTemplate(gst.NewPadTemplate(
 		"src",
 		gst.PadDirectionSource,
 		gst.PadPresenceAlways,
 		gst.NewAnyCaps(),
 	))
-	klass.InstallProperties(properties)
+	class.InstallProperties(properties)
 }
 
 // Object implementations are used during the initialization of an element. The

examples/plugins/minio/common.go

@@ -1,36 +0,0 @@
-package main
-
-import (
-	"os"
-)
-
-const (
-	accessKeyIDEnvVar     = "MINIO_ACCESS_KEY_ID"
-	secretAccessKeyEnvVar = "MINIO_SECRET_ACCESS_KEY"
-)
-
-var (
-	defaultEndpoint = "play.min.io"
-	defaultUseTLS   = true
-	defaultRegion   = "us-east-1"
-)
-
-type settings struct {
-	endpoint        string
-	useTLS          bool
-	region          string
-	bucket          string
-	key             string
-	accessKeyID     string
-	secretAccessKey string
-}
-
-func defaultSettings() *settings {
-	return &settings{
-		endpoint:        defaultEndpoint,
-		useTLS:          defaultUseTLS,
-		region:          defaultRegion,
-		accessKeyID:     os.Getenv(accessKeyIDEnvVar),
-		secretAccessKey: os.Getenv(secretAccessKeyEnvVar),
-	}
-}

examples/plugins/minio/miniosink.go

@@ -1,267 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-	"io"
-	"sync"
-
-	minio "github.com/minio/minio-go/v7"
-	"github.com/minio/minio-go/v7/pkg/credentials"
-
-	"github.com/tinyzimmer/go-glib/glib"
-	"github.com/tinyzimmer/go-gst/gst"
-	"github.com/tinyzimmer/go-gst/gst/base"
-)
-
-var sinkCAT = gst.NewDebugCategory(
-	"miniosink",
-	gst.DebugColorNone,
-	"MinIOSink Element",
-)
-
-var sinkProperties = []*gst.ParamSpec{
-	gst.NewStringParam(
-		"endpoint",
-		"S3 API Endpoint",
-		"The endpoint for the S3 API server",
-		&defaultEndpoint,
-		gst.ParameterReadWrite,
-	),
-	gst.NewBoolParam(
-		"use-tls",
-		"Use TLS",
-		"Use HTTPS for API requests",
-		defaultUseTLS,
-		gst.ParameterReadWrite,
-	),
-	gst.NewStringParam(
-		"region",
-		"Bucket region",
-		"The region where the bucket is",
-		&defaultRegion,
-		gst.ParameterReadWrite,
-	),
-	gst.NewStringParam(
-		"bucket",
-		"Bucket name",
-		"The name of the MinIO bucket",
-		nil,
-		gst.ParameterReadWrite,
-	),
-	gst.NewStringParam(
-		"key",
-		"Object key",
-		"The key of the object inside the bucket",
-		nil,
-		gst.ParameterReadWrite,
-	),
-	gst.NewStringParam(
-		"access-key-id",
-		"Access Key ID",
-		"The access key ID to use for authentication",
-		nil,
-		gst.ParameterReadWrite,
-	),
-	gst.NewStringParam(
-		"secret-access-key",
-		"Secret Access Key",
-		"The secret access key to use for authentication",
-		nil,
-		gst.ParameterReadWrite,
-	),
-}
-
-type minioSink struct {
-	settings *settings
-	state    *sinkstate
-}
-
-type sinkstate struct {
-	started  bool
-	rPipe    io.ReadCloser
-	wPipe    io.WriteCloser
-	doneChan chan struct{}
-
-	mux sync.Mutex
-}
-
-func (m *minioSink) New() gst.GoElement {
-	srcCAT.Log(gst.LevelLog, "Creating new minioSink object")
-	return &minioSink{
-		settings: defaultSettings(),
-		state:    &sinkstate{},
-	}
-}
-
-func (m *minioSink) TypeInit(*gst.TypeInstance) {}
-
-func (m *minioSink) ClassInit(klass *gst.ElementClass) {
-	sinkCAT.Log(gst.LevelLog, "Initializing miniosink class")
-	klass.SetMetadata(
-		"MinIO Sink",
-		"Sink/File",
-		"Write stream to a MinIO object",
-		"Avi Zimmerman <avi.zimmerman@gmail.com>",
-	)
-	sinkCAT.Log(gst.LevelLog, "Adding sink pad template and properties to class")
-	klass.AddPadTemplate(gst.NewPadTemplate(
-		"sink",
-		gst.PadDirectionSink,
-		gst.PadPresenceAlways,
-		gst.NewAnyCaps(),
-	))
-	klass.InstallProperties(sinkProperties)
-}
-
-func (m *minioSink) SetProperty(self *gst.Object, id uint, value *glib.Value) {
-	prop := sinkProperties[id]
-
-	val, err := value.GoValue()
-	if err != nil {
-		gst.ToElement(self).ErrorMessage(gst.DomainLibrary, gst.LibraryErrorSettings,
-			fmt.Sprintf("Could not coerce %v to go value", value), err.Error())
-	}
-
-	switch prop.Name() {
-	case "endpoint":
-		m.settings.endpoint = val.(string)
-	case "use-tls":
-		m.settings.useTLS = val.(bool)
-	case "region":
-		m.settings.region = val.(string)
-	case "bucket":
-		m.settings.bucket = val.(string)
-	case "key":
-		m.settings.key = val.(string)
-	case "access-key-id":
-		m.settings.accessKeyID = val.(string)
-	case "secret-access-key":
-		m.settings.secretAccessKey = val.(string)
-	}
-
-}
-
-func (m *minioSink) GetProperty(self *gst.Object, id uint) *glib.Value {
-	prop := sinkProperties[id]
-
-	var localVal interface{}
-
-	switch prop.Name() {
-	case "endpoint":
-		localVal = m.settings.endpoint
-	case "use-tls":
-		localVal = m.settings.useTLS
-	case "region":
-		localVal = m.settings.region
-	case "bucket":
-		localVal = m.settings.bucket
-	case "key":
-		localVal = m.settings.key
-	case "access-key-id":
-		localVal = m.settings.accessKeyID
-	case "secret-access-key":
-		localVal = m.settings.secretAccessKey
-
-	default:
-		gst.ToElement(self).ErrorMessage(gst.DomainLibrary, gst.LibraryErrorSettings,
-			fmt.Sprintf("Cannot get invalid property %s", prop.Name()), "")
-		return nil
-	}
-
-	val, err := glib.GValue(localVal)
-	if err != nil {
-		gst.ToElement(self).ErrorMessage(gst.DomainLibrary, gst.LibraryErrorFailed,
-			fmt.Sprintf("Could not convert %v to GValue", localVal),
-			err.Error(),
-		)
-	}
-
-	return val
-}
-
-func (m *minioSink) Start(self *base.GstBaseSink) bool {
-	if m.state.started {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorSettings,
-			"MinIOSink is already started", "")
-		return false
-	}
-
-	if m.settings.bucket == "" {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorSettings,
-			"No bucket configured on the miniosink", "")
-		return false
-	}
-
-	if m.settings.key == "" {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorSettings,
-			"No bucket configured on the miniosink", "")
-		return false
-	}
-
-	m.state.doneChan = make(chan struct{})
-
-	client, err := minio.New(m.settings.endpoint, &minio.Options{
-		Creds:  credentials.NewStaticV4(m.settings.accessKeyID, m.settings.secretAccessKey, ""),
-		Secure: m.settings.useTLS,
-		Region: m.settings.region,
-	})
-
-	if err != nil {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorFailed,
-			fmt.Sprintf("Failed to connect to MinIO endpoint %s", m.settings.endpoint), err.Error())
-		return false
-	}
-
-	m.state.rPipe, m.state.wPipe = io.Pipe()
-
-	go func() {
-		self.Log(sinkCAT, gst.LevelInfo,
-			fmt.Sprintf("Starting PutObject operation to %s/%s/%s", m.settings.endpoint, m.settings.bucket, m.settings.key),
-		)
-		if _, err := client.PutObject(context.Background(),
-			m.settings.bucket, m.settings.key,
-			m.state.rPipe, -1,
-			minio.PutObjectOptions{
-				ContentType: "application/octet-stream",
-			}); err != nil {
-			self.ErrorMessage(gst.DomainResource, gst.ResourceErrorFailed,
-				fmt.Sprintf("Error during PutObject call to %s/%s", m.settings.bucket, m.settings.key), err.Error())
-		}
-		m.state.doneChan <- struct{}{}
-	}()
-
-	m.state.started = true
-	self.Log(sinkCAT, gst.LevelInfo, "MinIOSink has started")
-	return true
-}
-
-func (m *minioSink) Stop(self *base.GstBaseSink) bool {
-	if !m.state.started {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorSettings, "MinIOSink is not started", "")
-		return false
-	}
-	if err := m.state.wPipe.Close(); err != nil {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorWrite, "Failed to close the write pipe", err.Error())
-		return false
-	}
-	self.Log(sinkCAT, gst.LevelInfo, "Waiting for PutObject operation to complete")
-	<-m.state.doneChan
-	self.Log(sinkCAT, gst.LevelInfo, "MinIOSink has stopped")
-	return true
-}
-
-func (m *minioSink) Render(self *base.GstBaseSink, buffer *gst.Buffer) gst.FlowReturn {
-	if !m.state.started {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorSettings, "MinIOSink is not started", "")
-		return gst.FlowError
-	}
-
-	self.Log(sinkCAT, gst.LevelLog, fmt.Sprintf("Rendering buffer %v", buffer))
-	if _, err := io.Copy(m.state.wPipe, buffer.Reader()); err != nil {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorWrite, "Error copying buffer to write pipe", err.Error())
-		return gst.FlowError
-	}
-
-	return gst.FlowOK
-}

examples/plugins/minio/miniosrc.go

@@ -1,324 +0,0 @@
-// This example demonstrates a src element that reads from objects in a minio bucket.
-// Since minio implements the S3 API this plugin could also be used for S3 buckets by
-// setting the correct endpoints and credentials.
-//
-// By default this plugin will use the credentials set in the environment at MINIO_ACCESS_KEY_ID
-// and MINIO_SECRET_ACCESS_KEY however these can also be set on the element directly.
-//
-//
-// In order to build the plugin for use by GStreamer, you can do the following:
-//
-//     $ go build -o libgstminiosrc.so -buildmode c-shared .
-//
-package main
-
-import (
-	"context"
-	"fmt"
-	"io"
-	"sync"
-
-	minio "github.com/minio/minio-go/v7"
-	"github.com/minio/minio-go/v7/pkg/credentials"
-
-	"github.com/tinyzimmer/go-glib/glib"
-	"github.com/tinyzimmer/go-gst/gst"
-	"github.com/tinyzimmer/go-gst/gst/base"
-)
-
-var srcCAT = gst.NewDebugCategory(
-	"miniosrc",
-	gst.DebugColorNone,
-	"MinIOSrc Element",
-)
-
-var srcProperties = []*gst.ParamSpec{
-	gst.NewStringParam(
-		"endpoint",
-		"S3 API Endpoint",
-		"The endpoint for the S3 API server",
-		&defaultEndpoint,
-		gst.ParameterReadWrite,
-	),
-	gst.NewBoolParam(
-		"use-tls",
-		"Use TLS",
-		"Use HTTPS for API requests",
-		defaultUseTLS,
-		gst.ParameterReadWrite,
-	),
-	gst.NewStringParam(
-		"region",
-		"Bucket region",
-		"The region where the bucket is",
-		&defaultRegion,
-		gst.ParameterReadWrite,
-	),
-	gst.NewStringParam(
-		"bucket",
-		"Bucket name",
-		"The name of the MinIO bucket",
-		nil,
-		gst.ParameterReadWrite,
-	),
-	gst.NewStringParam(
-		"key",
-		"Object key",
-		"The key of the object inside the bucket",
-		nil,
-		gst.ParameterReadWrite,
-	),
-	gst.NewStringParam(
-		"access-key-id",
-		"Access Key ID",
-		"The access key ID to use for authentication",
-		nil,
-		gst.ParameterReadWrite,
-	),
-	gst.NewStringParam(
-		"secret-access-key",
-		"Secret Access Key",
-		"The secret access key to use for authentication",
-		nil,
-		gst.ParameterReadWrite,
-	),
-}
-
-type minioSrc struct {
-	settings *settings
-	state    *srcstate
-}
-
-type srcstate struct {
-	started bool
-	object  *minio.Object
-	objInfo minio.ObjectInfo
-
-	mux sync.Mutex
-}
-
-func (m *minioSrc) New() gst.GoElement {
-	srcCAT.Log(gst.LevelLog, "Creating new minioSrc object")
-	return &minioSrc{
-		settings: defaultSettings(),
-		state:    &srcstate{},
-	}
-}
-
-func (m *minioSrc) TypeInit(*gst.TypeInstance) {}
-
-func (m *minioSrc) ClassInit(klass *gst.ElementClass) {
-	srcCAT.Log(gst.LevelLog, "Initializing miniosrc class")
-	klass.SetMetadata(
-		"MinIO Source",
-		"Source/File",
-		"Read stream from a MinIO object",
-		"Avi Zimmerman <avi.zimmerman@gmail.com>",
-	)
-	srcCAT.Log(gst.LevelLog, "Adding src pad template and properties to class")
-	klass.AddPadTemplate(gst.NewPadTemplate(
-		"src",
-		gst.PadDirectionSource,
-		gst.PadPresenceAlways,
-		gst.NewAnyCaps(),
-	))
-	klass.InstallProperties(srcProperties)
-}
-
-func (m *minioSrc) SetProperty(self *gst.Object, id uint, value *glib.Value) {
-	prop := srcProperties[id]
-
-	val, err := value.GoValue()
-	if err != nil {
-		gst.ToElement(self).ErrorMessage(gst.DomainLibrary, gst.LibraryErrorSettings,
-			fmt.Sprintf("Could not coerce %v to go value", value), err.Error())
-	}
-
-	switch prop.Name() {
-	case "endpoint":
-		m.settings.endpoint = val.(string)
-	case "use-tls":
-		m.settings.useTLS = val.(bool)
-	case "region":
-		m.settings.region = val.(string)
-	case "bucket":
-		m.settings.bucket = val.(string)
-	case "key":
-		m.settings.key = val.(string)
-	case "access-key-id":
-		m.settings.accessKeyID = val.(string)
-	case "secret-access-key":
-		m.settings.secretAccessKey = val.(string)
-	}
-
-}
-
-func (m *minioSrc) GetProperty(self *gst.Object, id uint) *glib.Value {
-	prop := srcProperties[id]
-
-	var localVal interface{}
-
-	switch prop.Name() {
-	case "endpoint":
-		localVal = m.settings.endpoint
-	case "use-tls":
-		localVal = m.settings.useTLS
-	case "region":
-		localVal = m.settings.region
-	case "bucket":
-		localVal = m.settings.bucket
-	case "key":
-		localVal = m.settings.key
-	case "access-key-id":
-		localVal = m.settings.accessKeyID
-	case "secret-access-key":
-		localVal = m.settings.secretAccessKey
-
-	default:
-		gst.ToElement(self).ErrorMessage(gst.DomainLibrary, gst.LibraryErrorSettings,
-			fmt.Sprintf("Cannot get invalid property %s", prop.Name()), "")
-		return nil
-	}
-
-	val, err := glib.GValue(localVal)
-	if err != nil {
-		gst.ToElement(self).ErrorMessage(gst.DomainLibrary, gst.LibraryErrorFailed,
-			fmt.Sprintf("Could not convert %v to GValue", localVal),
-			err.Error(),
-		)
-	}
-
-	return val
-}
-
-func (m *minioSrc) Constructed(self *gst.Object) {
-	self.Log(srcCAT, gst.LevelLog, "Setting format of GstBaseSrc to bytes")
-	base.ToGstBaseSrc(self).SetFormat(gst.FormatBytes)
-}
-
-func (m *minioSrc) IsSeekable(*base.GstBaseSrc) bool { return true }
-
-func (m *minioSrc) GetSize(self *base.GstBaseSrc) (bool, int64) {
-	if !m.state.started {
-		return false, 0
-	}
-	return true, m.state.objInfo.Size
-}
-
-func (m *minioSrc) Start(self *base.GstBaseSrc) bool {
-	m.state.mux.Lock()
-
-	if m.state.started {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorFailed, "MinIOSrc is already started", "")
-		return false
-	}
-
-	if m.settings.bucket == "" {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorFailed, "No source bucket defined", "")
-		return false
-	}
-
-	if m.settings.key == "" {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorFailed, "No object key defined", "")
-		return false
-	}
-
-	client, err := minio.New(m.settings.endpoint, &minio.Options{
-		Creds:  credentials.NewStaticV4(m.settings.accessKeyID, m.settings.secretAccessKey, ""),
-		Secure: m.settings.useTLS,
-		Region: m.settings.region,
-	})
-
-	if err != nil {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorFailed,
-			fmt.Sprintf("Failed to connect to MinIO endpoint %s", m.settings.endpoint), err.Error())
-		return false
-	}
-
-	self.Log(srcCAT, gst.LevelInfo, fmt.Sprintf("Requesting %s/%s from %s", m.settings.bucket, m.settings.key, m.settings.endpoint))
-	m.state.object, err = client.GetObject(context.Background(), m.settings.bucket, m.settings.key, minio.GetObjectOptions{})
-	if err != nil {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorOpenRead,
-			fmt.Sprintf("Failed to retrieve object %q from bucket %q", m.settings.key, m.settings.bucket), err.Error())
-		return false
-	}
-
-	self.Log(srcCAT, gst.LevelInfo, "Getting HEAD for object")
-	m.state.objInfo, err = m.state.object.Stat()
-	if err != nil {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorOpenRead,
-			fmt.Sprintf("Failed to stat object %q in bucket %q: %s", m.settings.key, m.settings.bucket, err.Error()), "")
-		return false
-	}
-	self.Log(srcCAT, gst.LevelInfo, fmt.Sprintf("%+v", m.state.objInfo))
-
-	m.state.started = true
-
-	m.state.mux.Unlock()
-
-	self.StartComplete(gst.FlowOK)
-
-	self.Log(srcCAT, gst.LevelInfo, "MinIOSrc has started")
-	return true
-}
-
-func (m *minioSrc) Stop(self *base.GstBaseSrc) bool {
-	m.state.mux.Lock()
-	defer m.state.mux.Unlock()
-
-	if !m.state.started {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorSettings, "MinIOSrc is not started", "")
-		return false
-	}
-
-	if err := m.state.object.Close(); err != nil {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorClose, "Failed to close the bucket object", err.Error())
-		return false
-	}
-
-	m.state.object = nil
-	m.state.started = false
-
-	self.Log(srcCAT, gst.LevelInfo, "MinIOSrc has stopped")
-	return true
-}
-
-func (m *minioSrc) Fill(self *base.GstBaseSrc, offset uint64, size uint, buffer *gst.Buffer) gst.FlowReturn {
-
-	if !m.state.started || m.state.object == nil {
-		self.ErrorMessage(gst.DomainCore, gst.CoreErrorFailed, "MinIOSrc is not started yet", "")
-		return gst.FlowError
-	}
-
-	self.Log(srcCAT, gst.LevelLog, fmt.Sprintf("Request to fill buffer from offset %v with size %v", offset, size))
-
-	m.state.mux.Lock()
-	defer m.state.mux.Unlock()
-
-	data := make([]byte, size)
-	read, err := m.state.object.ReadAt(data, int64(offset))
-	if err != nil && err != io.EOF {
-		self.ErrorMessage(gst.DomainResource, gst.ResourceErrorRead,
-			fmt.Sprintf("Failed to read %d bytes from object at offset %d", size, offset), err.Error())
-		return gst.FlowError
-	}
-
-	if read < int(size) {
-		self.Log(srcCAT, gst.LevelDebug, fmt.Sprintf("Only read %d bytes from object, trimming", read))
-		trim := make([]byte, read)
-		copy(trim, data)
-		data = trim
-	}
-
-	bufmap := buffer.Map(gst.MapWrite)
-	if bufmap == nil {
-		self.ErrorMessage(gst.DomainLibrary, gst.LibraryErrorFailed, "Failed to map buffer", "")
-		return gst.FlowError
-	}
-	defer buffer.Unmap()
-
-	bufmap.WriteData(data)
-	buffer.SetSize(int64(read))
-
-	return gst.FlowOK
-}

examples/plugins/minio/plugin.go

@@ -1,61 +0,0 @@
-package main
-
-import "C"
-
-import (
-	"unsafe"
-
-	"github.com/tinyzimmer/go-gst/gst"
-	"github.com/tinyzimmer/go-gst/gst/base"
-)
-
-// The metadata for this plugin
-var pluginMeta = &gst.PluginMetadata{
-	MajorVersion: gst.VersionMajor,
-	MinorVersion: gst.VersionMinor,
-	Name:         "miniosrc",
-	Description:  "GStreamer plugins for reading and writing from Minio",
-	Version:      "v0.0.1",
-	License:      gst.LicenseLGPL,
-	Source:       "go-gst",
-	Package:      "examples",
-	Origin:       "https://github.com/tinyzimmer/go-gst",
-	ReleaseDate:  "2021-01-11",
-	// The init function is called to register elements provided by the plugin.
-	Init: func(plugin *gst.Plugin) bool {
-		if ok := gst.RegisterElement(
-			plugin,
-			// The name of the element
-			"miniosrc",
-			// The rank of the element
-			gst.RankNone,
-			// The GoElement implementation for the element
-			&minioSrc{},
-			// The base subclass this element extends
-			base.ExtendsBaseSrc,
-		); !ok {
-			return ok
-		}
-
-		if ok := gst.RegisterElement(
-			plugin,
-			// The name of the element
-			"miniosink",
-			// The rank of the element
-			gst.RankNone,
-			// The GoElement implementation for the element
-			&minioSink{},
-			// The base subclass this element extends
-			base.ExtendsBaseSink,
-		); !ok {
-			return ok
-		}
-
-		return true
-	},
-}
-
-func main() {}
-
-//export gst_plugin_minio_get_desc
-func gst_plugin_minio_get_desc() unsafe.Pointer { return pluginMeta.Export() }

examples/plugins/websocketsrc/websocketsrc.go

@@ -55,29 +55,29 @@ var CAT = gst.NewDebugCategory(
 	"WebsocketSrc Element",
 )
 
-var properties = []*gst.ParamSpec{
+var properties = []*glib.ParamSpec{
-	gst.NewStringParam(
+	glib.NewStringParam(
 		"address",
 		"Server Address",
 		"The address to bind the server to",
 		&DefaultAddress,
-		gst.ParameterReadWrite,
+		glib.ParameterReadWrite,
 	),
-	gst.NewIntParam(
+	glib.NewIntParam(
 		"port",
 		"Server Port",
 		"The port to bind the server to",
 		1024, 65535,
 		DefaultPort,
-		gst.ParameterReadWrite,
+		glib.ParameterReadWrite,
 	),
 	// not implemented yet
-	gst.NewBoolParam(
+	glib.NewBoolParam(
 		"retrieve-remote-addr",
 		"Retrieve Remote Address",
 		"Include the remote client's address in the buffer metadata",
 		DefaultRetrieveRemoteAddr,
-		gst.ParameterReadWrite,
+		glib.ParameterReadWrite,
 	),
 }
 
@@ -398,29 +398,30 @@ func (w *websocketSrc) setupSrcPad(elem *gst.Element) {
 
 // * ObjectSubclass * //
 
-func (w *websocketSrc) New() gst.GoElement {
+func (w *websocketSrc) New() glib.GoObjectSubclass {
 	return &websocketSrc{
 		settings: defaultSettings(),
 		state:    &state{},
 	}
 }
 
-func (w *websocketSrc) TypeInit(instance *gst.TypeInstance) {}
+func (w *websocketSrc) TypeInit(instance *glib.TypeInstance) {}
 
-func (w *websocketSrc) ClassInit(klass *gst.ElementClass) {
+func (w *websocketSrc) ClassInit(klass *glib.ObjectClass) {
-	klass.SetMetadata(
+	class := gst.ToElementClass(klass)
+	class.SetMetadata(
 		"Websocket Src",
 		"Src/Websocket",
 		"Write stream from a connection over a websocket server",
 		"Avi Zimmerman <avi.zimmerman@gmail.com>",
 	)
-	klass.AddPadTemplate(gst.NewPadTemplate(
+	class.AddPadTemplate(gst.NewPadTemplate(
 		"src",
 		gst.PadDirectionSource,
 		gst.PadPresenceAlways,
 		gst.NewAnyCaps(),
 	))
-	klass.InstallProperties(properties)
+	class.InstallProperties(properties)
 }
 
 // * Object * //

examples/queries/main.go

@@ -20,11 +20,12 @@ import (
 	"strings"
 	"time"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/examples"
 	"github.com/tinyzimmer/go-gst/gst"
 )
 
-func queries(mainLoop *gst.MainLoop) error {
+func queries(mainLoop *glib.MainLoop) error {
 
 	if len(os.Args) < 2 {
 		fmt.Println("USAGE: queries <pipeline>")

examples/toc/main.go

@@ -18,11 +18,12 @@ import (
 	"os"
 	"time"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/examples"
 	"github.com/tinyzimmer/go-gst/gst"
 )
 
-func tagsetter(mainLoop *gst.MainLoop) error {
+func tagsetter(mainLoop *glib.MainLoop) error {
 	gst.Init(nil)
 
 	if len(os.Args) < 2 {

go.mod

@@ -4,5 +4,6 @@ go 1.15
 
 require (
 	github.com/mattn/go-pointer v0.0.1
-	github.com/tinyzimmer/go-glib v0.0.4
+	github.com/tinyzimmer/go-glib v0.0.7
+	golang.org/x/net v0.0.0-20201224014010-6772e930b67b
 )

go.sum

@@ -1,4 +1,12 @@
 github.com/mattn/go-pointer v0.0.1 h1:n+XhsuGeVO6MEAp7xyEukFINEa+Quek5psIR/ylA6o0=
 github.com/mattn/go-pointer v0.0.1/go.mod h1:2zXcozF6qYGgmsG+SeTZz3oAbFLdD3OWqnUbNvJZAlc=
-github.com/tinyzimmer/go-glib v0.0.4 h1:IaysVU2Y4QNqgyKhnMVB1Q/55+zpgkVXnIEbV9bWWS8=
+github.com/tinyzimmer/go-glib v0.0.7 h1:09SIbhaL+E+5U/4qbZXiM7f6HEDvcxOBuEiSCkT9FNw=
-github.com/tinyzimmer/go-glib v0.0.4/go.mod h1:D5rd0CvYn1p7TBhwlwnBXHSr4d8lwEY9JImPQ66S+Bs=
+github.com/tinyzimmer/go-glib v0.0.7/go.mod h1:zy2cs6eXSTtqqYrv9/UgYMDfr4pWKuYPSzwX87cBGX4=
+golang.org/x/net v0.0.0-20201224014010-6772e930b67b h1:iFwSg7t5GZmB/Q5TjiEAsdoLDrdJRC1RiF2WhuV29Qw=
+golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 h1:nxC68pudNYkKU6jWhgrqdreuFiOQWj1Fs7T3VrH4Pjw=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

gst/app/gst_app_sink.go

@@ -23,7 +23,9 @@ import (
 	"unsafe"
 
 	gopointer "github.com/mattn/go-pointer"
+
 	"github.com/tinyzimmer/go-gst/gst"
+	"github.com/tinyzimmer/go-gst/gst/base"
 )
 
 // SinkCallbacks represents callbacks that can be installed on an app sink when data is available.
@@ -37,7 +39,7 @@ type SinkCallbacks struct {
 var ErrEOS = errors.New("Pipeline has reached end-of-stream")
 
 // Sink wraps an Element made with the appsink plugin with additional methods for pulling samples.
-type Sink struct{ *gst.Element }
+type Sink struct{ *base.GstBaseSink }
 
 // NewAppSink returns a new appsink element. Unref after usage.
 func NewAppSink() (*Sink, error) {

gst/app/gst_app_src.go

@@ -23,6 +23,7 @@ import (
 
 	gopointer "github.com/mattn/go-pointer"
 	"github.com/tinyzimmer/go-gst/gst"
+	"github.com/tinyzimmer/go-gst/gst/base"
 )
 
 // SourceCallbacks represents callbacks to configure on an AppSource.
@@ -43,7 +44,7 @@ const (
 )
 
 // Source wraps an Element made with the appsrc plugin with additional methods for pushing samples.
-type Source struct{ *gst.Element }
+type Source struct{ *base.GstBaseSrc }
 
 // NewAppSrc returns a new AppSrc element.
 func NewAppSrc() (*Source, error) {

gst/app/wrappers.go

@@ -5,10 +5,15 @@ import "C"
 
 import (
 	"github.com/tinyzimmer/go-gst/gst"
+	"github.com/tinyzimmer/go-gst/gst/base"
 )
 
-func wrapAppSink(elem *gst.Element) *Sink  { return &Sink{elem} }
+func wrapAppSink(elem *gst.Element) *Sink {
-func wrapAppSrc(elem *gst.Element) *Source { return &Source{elem} }
+	return &Sink{GstBaseSink: &base.GstBaseSink{Element: elem}}
+}
+func wrapAppSrc(elem *gst.Element) *Source {
+	return &Source{GstBaseSrc: &base.GstBaseSrc{Element: elem}}
+}
 
 // gobool provides an easy type conversion between C.gboolean and a go bool.
 func gobool(b C.gboolean) bool { return int(b) > 0 }

gst/base/gst_base_sink_exports.go

@@ -9,12 +9,13 @@ import (
 	"time"
 	"unsafe"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/gst"
 )
 
 //export goGstBaseSinkActivatePull
 func goGstBaseSinkActivatePull(sink *C.GstBaseSink, active C.gboolean) C.gboolean {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		ActivatePull(self *GstBaseSink, active bool) bool
 	})
 	return gboolean(iface.ActivatePull(wrapGstBaseSink(sink), gobool(active)))
@@ -22,7 +23,7 @@ func goGstBaseSinkActivatePull(sink *C.GstBaseSink, active C.gboolean) C.gboolea
 
 //export goGstBaseSinkEvent
 func goGstBaseSinkEvent(sink *C.GstBaseSink, event *C.GstEvent) C.gboolean {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		Event(self *GstBaseSink, event *gst.Event) bool
 	})
 	return gboolean(iface.Event(wrapGstBaseSink(sink), gst.FromGstEventUnsafe(unsafe.Pointer(event))))
@@ -30,7 +31,7 @@ func goGstBaseSinkEvent(sink *C.GstBaseSink, event *C.GstEvent) C.gboolean {
 
 //export goGstBaseSinkFixate
 func goGstBaseSinkFixate(sink *C.GstBaseSink, caps *C.GstCaps) *C.GstCaps {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		Fixate(self *GstBaseSink, caps *gst.Caps) *gst.Caps
 	})
 	fixated := iface.Fixate(wrapGstBaseSink(sink), gst.FromGstCapsUnsafe(unsafe.Pointer(caps)))
@@ -42,7 +43,7 @@ func goGstBaseSinkFixate(sink *C.GstBaseSink, caps *C.GstCaps) *C.GstCaps {
 
 //export goGstBaseSinkGetCaps
 func goGstBaseSinkGetCaps(sink *C.GstBaseSink, filter *C.GstCaps) *C.GstCaps {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		GetCaps(self *GstBaseSink, filter *gst.Caps) *gst.Caps
 	})
 	filtered := iface.GetCaps(wrapGstBaseSink(sink), gst.FromGstCapsUnsafe(unsafe.Pointer(filter)))
@@ -54,7 +55,7 @@ func goGstBaseSinkGetCaps(sink *C.GstBaseSink, filter *C.GstCaps) *C.GstCaps {
 
 //export goGstBaseSinkGetTimes
 func goGstBaseSinkGetTimes(sink *C.GstBaseSink, buf *C.GstBuffer, start, end *C.GstClockTime) {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		GetTimes(self *GstBaseSink, buffer *gst.Buffer) (start, end time.Duration)
 	})
 	retStart, retEnd := iface.GetTimes(wrapGstBaseSink(sink), gst.FromGstBufferUnsafe(unsafe.Pointer(buf)))
@@ -64,7 +65,7 @@ func goGstBaseSinkGetTimes(sink *C.GstBaseSink, buf *C.GstBuffer, start, end *C.
 
 //export goGstBaseSinkPrepare
 func goGstBaseSinkPrepare(sink *C.GstBaseSink, buf *C.GstBuffer) C.GstFlowReturn {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		Prepare(self *GstBaseSink, buffer *gst.Buffer) gst.FlowReturn
 	})
 	return C.GstFlowReturn(iface.Prepare(wrapGstBaseSink(sink), gst.FromGstBufferUnsafe(unsafe.Pointer(buf))))
@@ -72,7 +73,7 @@ func goGstBaseSinkPrepare(sink *C.GstBaseSink, buf *C.GstBuffer) C.GstFlowReturn
 
 //export goGstBaseSinkPrepareList
 func goGstBaseSinkPrepareList(sink *C.GstBaseSink, list *C.GstBufferList) C.GstFlowReturn {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		PrepareList(self *GstBaseSink, bufferList *gst.BufferList) gst.FlowReturn
 	})
 	return C.GstFlowReturn(iface.PrepareList(wrapGstBaseSink(sink), gst.FromGstBufferListUnsafe(unsafe.Pointer(list))))
@@ -80,7 +81,7 @@ func goGstBaseSinkPrepareList(sink *C.GstBaseSink, list *C.GstBufferList) C.GstF
 
 //export goGstBaseSinkPreroll
 func goGstBaseSinkPreroll(sink *C.GstBaseSink, buf *C.GstBuffer) C.GstFlowReturn {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		Preroll(self *GstBaseSink, buffer *gst.Buffer) gst.FlowReturn
 	})
 	return C.GstFlowReturn(iface.Preroll(wrapGstBaseSink(sink), gst.FromGstBufferUnsafe(unsafe.Pointer(buf))))
@@ -88,7 +89,7 @@ func goGstBaseSinkPreroll(sink *C.GstBaseSink, buf *C.GstBuffer) C.GstFlowReturn
 
 //export goGstBaseSinkProposeAllocation
 func goGstBaseSinkProposeAllocation(sink *C.GstBaseSink, query *C.GstQuery) C.gboolean {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		ProposeAllocation(self *GstBaseSink, query *gst.Query) bool
 	})
 	return gboolean(iface.ProposeAllocation(wrapGstBaseSink(sink), gst.FromGstQueryUnsafe(unsafe.Pointer(query))))
@@ -96,7 +97,7 @@ func goGstBaseSinkProposeAllocation(sink *C.GstBaseSink, query *C.GstQuery) C.gb
 
 //export goGstBaseSinkQuery
 func goGstBaseSinkQuery(sink *C.GstBaseSink, query *C.GstQuery) C.gboolean {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		Query(self *GstBaseSink, query *gst.Query) bool
 	})
 	return gboolean(iface.Query(wrapGstBaseSink(sink), gst.FromGstQueryUnsafe(unsafe.Pointer(query))))
@@ -104,7 +105,7 @@ func goGstBaseSinkQuery(sink *C.GstBaseSink, query *C.GstQuery) C.gboolean {
 
 //export goGstBaseSinkRender
 func goGstBaseSinkRender(sink *C.GstBaseSink, buf *C.GstBuffer) C.GstFlowReturn {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		Render(self *GstBaseSink, buffer *gst.Buffer) gst.FlowReturn
 	})
 	return C.GstFlowReturn(iface.Render(wrapGstBaseSink(sink), gst.FromGstBufferUnsafe(unsafe.Pointer(buf))))
@@ -112,7 +113,7 @@ func goGstBaseSinkRender(sink *C.GstBaseSink, buf *C.GstBuffer) C.GstFlowReturn
 
 //export goGstBaseSinkRenderList
 func goGstBaseSinkRenderList(sink *C.GstBaseSink, buf *C.GstBufferList) C.GstFlowReturn {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		RenderList(self *GstBaseSink, bufferList *gst.BufferList) gst.FlowReturn
 	})
 	return C.GstFlowReturn(iface.RenderList(wrapGstBaseSink(sink), gst.FromGstBufferListUnsafe(unsafe.Pointer(buf))))
@@ -120,7 +121,7 @@ func goGstBaseSinkRenderList(sink *C.GstBaseSink, buf *C.GstBufferList) C.GstFlo
 
 //export goGstBaseSinkSetCaps
 func goGstBaseSinkSetCaps(sink *C.GstBaseSink, caps *C.GstCaps) C.gboolean {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		SetCaps(self *GstBaseSink, caps *gst.Caps) bool
 	})
 	return gboolean(iface.SetCaps(wrapGstBaseSink(sink), gst.FromGstCapsUnsafe(unsafe.Pointer(caps))))
@@ -128,7 +129,7 @@ func goGstBaseSinkSetCaps(sink *C.GstBaseSink, caps *C.GstCaps) C.gboolean {
 
 //export goGstBaseSinkStart
 func goGstBaseSinkStart(sink *C.GstBaseSink) C.gboolean {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		Start(self *GstBaseSink) bool
 	})
 	return gboolean(iface.Start(wrapGstBaseSink(sink)))
@@ -136,7 +137,7 @@ func goGstBaseSinkStart(sink *C.GstBaseSink) C.gboolean {
 
 //export goGstBaseSinkStop
 func goGstBaseSinkStop(sink *C.GstBaseSink) C.gboolean {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		Stop(self *GstBaseSink) bool
 	})
 	return gboolean(iface.Stop(wrapGstBaseSink(sink)))
@@ -144,7 +145,7 @@ func goGstBaseSinkStop(sink *C.GstBaseSink) C.gboolean {
 
 //export goGstBaseSinkUnlock
 func goGstBaseSinkUnlock(sink *C.GstBaseSink) C.gboolean {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		Unlock(self *GstBaseSink) bool
 	})
 	return gboolean(iface.Unlock(wrapGstBaseSink(sink)))
@@ -152,7 +153,7 @@ func goGstBaseSinkUnlock(sink *C.GstBaseSink) C.gboolean {
 
 //export goGstBaseSinkUnlockStop
 func goGstBaseSinkUnlockStop(sink *C.GstBaseSink) C.gboolean {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		UnlockStop(self *GstBaseSink) bool
 	})
 	return gboolean(iface.UnlockStop(wrapGstBaseSink(sink)))
@@ -160,7 +161,7 @@ func goGstBaseSinkUnlockStop(sink *C.GstBaseSink) C.gboolean {
 
 //export goGstBaseSinkWaitEvent
 func goGstBaseSinkWaitEvent(sink *C.GstBaseSink, event *C.GstEvent) C.GstFlowReturn {
-	iface := gst.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(sink)).(interface {
 		WaitEvent(self *GstBaseSink, event *gst.Event) gst.FlowReturn
 	})
 	return C.GstFlowReturn(iface.WaitEvent(wrapGstBaseSink(sink), gst.FromGstEventUnsafe(unsafe.Pointer(event))))

gst/base/gst_base_sink_impl.go

@@ -64,7 +64,7 @@ import (
 
 var (
 	// ExtendsBaseSink is an Extendable for extending a GstBaseSink
-	ExtendsBaseSink gst.Extendable = &extendsBaseSink{parent: gst.ExtendsElement}
+	ExtendsBaseSink glib.Extendable = &extendsBaseSink{parent: gst.ExtendsElement}
 )
 
 // GstBaseSinkImpl is the documented interface for extending a GstBaseSink. It does not have to
@@ -120,13 +120,13 @@ type GstBaseSinkImpl interface {
 	WaitEvent(self *GstBaseSink, event *gst.Event) gst.FlowReturn
 }
 
-type extendsBaseSink struct{ parent gst.Extendable }
+type extendsBaseSink struct{ parent glib.Extendable }
 
 func (e *extendsBaseSink) Type() glib.Type     { return glib.Type(C.gst_base_sink_get_type()) }
 func (e *extendsBaseSink) ClassSize() int64    { return int64(C.sizeof_GstBaseSinkClass) }
 func (e *extendsBaseSink) InstanceSize() int64 { return int64(C.sizeof_GstBaseSink) }
 
-func (e *extendsBaseSink) InitClass(klass unsafe.Pointer, elem gst.GoElement) {
+func (e *extendsBaseSink) InitClass(klass unsafe.Pointer, elem glib.GoObjectSubclass) {
 	e.parent.InitClass(klass, elem)
 
 	sinkClass := C.toGstBaseSinkClass(klass)

gst/base/gst_base_src_exports.go

@@ -7,12 +7,13 @@ import (
 	"time"
 	"unsafe"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/gst"
 )
 
 //export goGstBaseSrcGetCaps
 func goGstBaseSrcGetCaps(src *C.GstBaseSrc, filter *C.GstCaps) *C.GstCaps {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		GetCaps(*GstBaseSrc, *gst.Caps) *gst.Caps
 	})
@@ -22,7 +23,7 @@ func goGstBaseSrcGetCaps(src *C.GstBaseSrc, filter *C.GstCaps) *C.GstCaps {
 
 //export goGstBaseSrcNegotiate
 func goGstBaseSrcNegotiate(src *C.GstBaseSrc) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		Negotiate(*GstBaseSrc) bool
 	})
@@ -31,7 +32,7 @@ func goGstBaseSrcNegotiate(src *C.GstBaseSrc) C.gboolean {
 
 //export goGstBaseSrcFixate
 func goGstBaseSrcFixate(src *C.GstBaseSrc, caps *C.GstCaps) *C.GstCaps {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		Fixate(*GstBaseSrc, *gst.Caps) *gst.Caps
 	})
@@ -41,7 +42,7 @@ func goGstBaseSrcFixate(src *C.GstBaseSrc, caps *C.GstCaps) *C.GstCaps {
 
 //export goGstBaseSrcSetCaps
 func goGstBaseSrcSetCaps(src *C.GstBaseSrc, filter *C.GstCaps) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		SetCaps(*GstBaseSrc, *gst.Caps) bool
 	})
@@ -50,7 +51,7 @@ func goGstBaseSrcSetCaps(src *C.GstBaseSrc, filter *C.GstCaps) C.gboolean {
 
 //export goGstBaseSrcDecideAllocation
 func goGstBaseSrcDecideAllocation(src *C.GstBaseSrc, query *C.GstQuery) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		DecideAllocation(*GstBaseSrc, *gst.Query) bool
 	})
@@ -59,7 +60,7 @@ func goGstBaseSrcDecideAllocation(src *C.GstBaseSrc, query *C.GstQuery) C.gboole
 
 //export goGstBaseSrcStart
 func goGstBaseSrcStart(src *C.GstBaseSrc) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		Start(*GstBaseSrc) bool
 	})
@@ -68,7 +69,7 @@ func goGstBaseSrcStart(src *C.GstBaseSrc) C.gboolean {
 
 //export goGstBaseSrcStop
 func goGstBaseSrcStop(src *C.GstBaseSrc) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		Stop(*GstBaseSrc) bool
 	})
@@ -77,7 +78,7 @@ func goGstBaseSrcStop(src *C.GstBaseSrc) C.gboolean {
 
 //export goGstBaseSrcGetTimes
 func goGstBaseSrcGetTimes(src *C.GstBaseSrc, buf *C.GstBuffer, start *C.GstClockTime, end *C.GstClockTime) {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		GetTimes(*GstBaseSrc, *gst.Buffer) (start, end time.Duration)
 	})
@@ -88,7 +89,7 @@ func goGstBaseSrcGetTimes(src *C.GstBaseSrc, buf *C.GstBuffer, start *C.GstClock
 
 //export goGstBaseSrcGetSize
 func goGstBaseSrcGetSize(src *C.GstBaseSrc, size *C.guint64) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		GetSize(*GstBaseSrc) (bool, int64)
 	})
@@ -102,7 +103,7 @@ func goGstBaseSrcGetSize(src *C.GstBaseSrc, size *C.guint64) C.gboolean {
 
 //export goGstBaseSrcIsSeekable
 func goGstBaseSrcIsSeekable(src *C.GstBaseSrc) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		IsSeekable(*GstBaseSrc) bool
 	})
@@ -111,7 +112,7 @@ func goGstBaseSrcIsSeekable(src *C.GstBaseSrc) C.gboolean {
 
 //export goGstBaseSrcPrepareSeekSegment
 func goGstBaseSrcPrepareSeekSegment(src *C.GstBaseSrc, seek *C.GstEvent, segment *C.GstSegment) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		PrepareSeekSegment(*GstBaseSrc, *gst.Event, *gst.Segment) bool
 	})
@@ -120,7 +121,7 @@ func goGstBaseSrcPrepareSeekSegment(src *C.GstBaseSrc, seek *C.GstEvent, segment
 
 //export goGstBaseSrcDoSeek
 func goGstBaseSrcDoSeek(src *C.GstBaseSrc, segment *C.GstSegment) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		DoSeek(*GstBaseSrc, *gst.Segment) bool
 	})
@@ -129,7 +130,7 @@ func goGstBaseSrcDoSeek(src *C.GstBaseSrc, segment *C.GstSegment) C.gboolean {
 
 //export goGstBaseSrcUnlock
 func goGstBaseSrcUnlock(src *C.GstBaseSrc) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		Unlock(*GstBaseSrc) bool
 	})
@@ -138,7 +139,7 @@ func goGstBaseSrcUnlock(src *C.GstBaseSrc) C.gboolean {
 
 //export goGstBaseSrcUnlockStop
 func goGstBaseSrcUnlockStop(src *C.GstBaseSrc) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		UnlockStop(*GstBaseSrc) bool
 	})
@@ -147,7 +148,7 @@ func goGstBaseSrcUnlockStop(src *C.GstBaseSrc) C.gboolean {
 
 //export goGstBaseSrcQuery
 func goGstBaseSrcQuery(src *C.GstBaseSrc, query *C.GstQuery) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		Query(*GstBaseSrc, *gst.Query) bool
 	})
@@ -156,7 +157,7 @@ func goGstBaseSrcQuery(src *C.GstBaseSrc, query *C.GstQuery) C.gboolean {
 
 //export goGstBaseSrcEvent
 func goGstBaseSrcEvent(src *C.GstBaseSrc, event *C.GstEvent) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		Event(*GstBaseSrc, *gst.Event) bool
 	})
@@ -165,7 +166,7 @@ func goGstBaseSrcEvent(src *C.GstBaseSrc, event *C.GstEvent) C.gboolean {
 
 //export goGstBaseSrcCreate
 func goGstBaseSrcCreate(src *C.GstBaseSrc, offset C.guint64, size C.guint, buf **C.GstBuffer) C.GstFlowReturn {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		Create(*GstBaseSrc, uint64, uint) (gst.FlowReturn, *gst.Buffer)
 	})
@@ -178,7 +179,7 @@ func goGstBaseSrcCreate(src *C.GstBaseSrc, offset C.guint64, size C.guint, buf *
 
 //export goGstBaseSrcAlloc
 func goGstBaseSrcAlloc(src *C.GstBaseSrc, offset C.guint64, size C.guint, buf **C.GstBuffer) C.GstFlowReturn {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		Alloc(*GstBaseSrc, uint64, uint) (gst.FlowReturn, *gst.Buffer)
 	})
@@ -191,7 +192,7 @@ func goGstBaseSrcAlloc(src *C.GstBaseSrc, offset C.guint64, size C.guint, buf **
 
 //export goGstBaseSrcFill
 func goGstBaseSrcFill(src *C.GstBaseSrc, offset C.guint64, size C.guint, buf *C.GstBuffer) C.GstFlowReturn {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(src))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(src))
 	caller := elem.(interface {
 		Fill(*GstBaseSrc, uint64, uint, *gst.Buffer) gst.FlowReturn
 	})

gst/base/gst_base_src_impl.go

@@ -57,7 +57,7 @@ import (
 
 var (
 	// ExtendsBaseSrc is an Extendable for extending a GstBaseSrc
-	ExtendsBaseSrc gst.Extendable = &extendsBaseSrc{parent: gst.ExtendsElement}
+	ExtendsBaseSrc glib.Extendable = &extendsBaseSrc{parent: gst.ExtendsElement}
 )
 
 // GstBaseSrcImpl is the documented interface for an element extending a GstBaseSrc. It does not have to
@@ -110,7 +110,7 @@ type GstBaseSrcImpl interface {
 	Fill(self *GstBaseSrc, offset uint64, size uint, buffer *gst.Buffer) gst.FlowReturn
 }
 
-type extendsBaseSrc struct{ parent gst.Extendable }
+type extendsBaseSrc struct{ parent glib.Extendable }
 
 func (e *extendsBaseSrc) Type() glib.Type     { return glib.Type(C.gst_base_src_get_type()) }
 func (e *extendsBaseSrc) ClassSize() int64    { return int64(C.sizeof_GstBaseSrcClass) }
@@ -118,7 +118,7 @@ func (e *extendsBaseSrc) InstanceSize() int64 { return int64(C.sizeof_GstBaseSrc
 
 // InitClass iterates the methods provided by the element and overrides any provided
 // in the virtual methods.
-func (e *extendsBaseSrc) InitClass(klass unsafe.Pointer, elem gst.GoElement) {
+func (e *extendsBaseSrc) InitClass(klass unsafe.Pointer, elem glib.GoObjectSubclass) {
 	e.parent.InitClass(klass, elem)
 
 	class := C.toGstBaseSrcClass(klass)

gst/base/gst_base_transform_exports.go

@@ -14,7 +14,7 @@ import (
 
 //export goGstBaseTransformAcceptCaps
 func goGstBaseTransformAcceptCaps(self *C.GstBaseTransform, direction C.GstPadDirection, caps *C.GstCaps) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		AcceptCaps(self *GstBaseTransform, direction gst.PadDirection, caps *gst.Caps) bool
 	})
@@ -23,7 +23,7 @@ func goGstBaseTransformAcceptCaps(self *C.GstBaseTransform, direction C.GstPadDi
 
 //export goGstBaseTransformBeforeTransform
 func goGstBaseTransformBeforeTransform(self *C.GstBaseTransform, buffer *C.GstBuffer) {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		BeforeTransform(self *GstBaseTransform, buffer *gst.Buffer)
 	})
@@ -32,7 +32,7 @@ func goGstBaseTransformBeforeTransform(self *C.GstBaseTransform, buffer *C.GstBu
 
 //export goGstBaseTransformCopyMetadata
 func goGstBaseTransformCopyMetadata(self *C.GstBaseTransform, input, outbuf *C.GstBuffer) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		CopyMetadata(self *GstBaseTransform, input, output *gst.Buffer) bool
 	})
@@ -41,7 +41,7 @@ func goGstBaseTransformCopyMetadata(self *C.GstBaseTransform, input, outbuf *C.G
 
 //export goGstBaseTransformDecideAllocation
 func goGstBaseTransformDecideAllocation(self *C.GstBaseTransform, query *C.GstQuery) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		DecideAllocation(self *GstBaseTransform, query *gst.Query) bool
 	})
@@ -50,7 +50,7 @@ func goGstBaseTransformDecideAllocation(self *C.GstBaseTransform, query *C.GstQu
 
 //export goGstBaseTransformFilterMeta
 func goGstBaseTransformFilterMeta(self *C.GstBaseTransform, query *C.GstQuery, api C.GType, params *C.GstStructure) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		FilterMeta(self *GstBaseTransform, query *gst.Query, api glib.Type, params *gst.Structure) bool
 	})
@@ -64,7 +64,7 @@ func goGstBaseTransformFilterMeta(self *C.GstBaseTransform, query *C.GstQuery, a
 
 //export goGstBaseTransformFixateCaps
 func goGstBaseTransformFixateCaps(self *C.GstBaseTransform, direction C.GstPadDirection, caps, othercaps *C.GstCaps) *C.GstCaps {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		FixateCaps(self *GstBaseTransform, directon gst.PadDirection, caps *gst.Caps, othercaps *gst.Caps) *gst.Caps
 	})
@@ -82,7 +82,7 @@ func goGstBaseTransformFixateCaps(self *C.GstBaseTransform, direction C.GstPadDi
 
 //export goGstBaseTransformGenerateOutput
 func goGstBaseTransformGenerateOutput(self *C.GstBaseTransform, buf **C.GstBuffer) C.GstFlowReturn {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		GenerateOutput(self *GstBaseTransform) (gst.FlowReturn, *gst.Buffer)
 	})
@@ -95,7 +95,7 @@ func goGstBaseTransformGenerateOutput(self *C.GstBaseTransform, buf **C.GstBuffe
 
 //export goGstBaseTransformGetUnitSize
 func goGstBaseTransformGetUnitSize(self *C.GstBaseTransform, caps *C.GstCaps, size *C.gsize) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		GetUnitSize(self *GstBaseTransform, caps *gst.Caps) (ok bool, size int64)
 	})
@@ -108,7 +108,7 @@ func goGstBaseTransformGetUnitSize(self *C.GstBaseTransform, caps *C.GstCaps, si
 
 //export goGstBaseTransformPrepareOutputBuffer
 func goGstBaseTransformPrepareOutputBuffer(self *C.GstBaseTransform, input *C.GstBuffer, outbuf **C.GstBuffer) C.GstFlowReturn {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		PrepareOutputBuffer(self *GstBaseTransform, input *gst.Buffer) (gst.FlowReturn, *gst.Buffer)
 	})
@@ -121,7 +121,7 @@ func goGstBaseTransformPrepareOutputBuffer(self *C.GstBaseTransform, input *C.Gs
 
 //export goGstBaseTransformProposeAllocation
 func goGstBaseTransformProposeAllocation(self *C.GstBaseTransform, decide, query *C.GstQuery) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		ProposeAllocation(self *GstBaseTransform, decideQuery, query *gst.Query) bool
 	})
@@ -130,7 +130,7 @@ func goGstBaseTransformProposeAllocation(self *C.GstBaseTransform, decide, query
 
 //export goGstBaseTransformQuery
 func goGstBaseTransformQuery(self *C.GstBaseTransform, direction C.GstPadDirection, query *C.GstQuery) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		Query(self *GstBaseTransform, direction gst.PadDirection, query *gst.Query) bool
 	})
@@ -139,7 +139,7 @@ func goGstBaseTransformQuery(self *C.GstBaseTransform, direction C.GstPadDirecti
 
 //export goGstBaseTransformSetCaps
 func goGstBaseTransformSetCaps(self *C.GstBaseTransform, incaps, outcaps *C.GstCaps) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		SetCaps(self *GstBaseTransform, incaps, outcaps *gst.Caps) bool
 	})
@@ -152,7 +152,7 @@ func goGstBaseTransformSetCaps(self *C.GstBaseTransform, incaps, outcaps *C.GstC
 
 //export goGstBaseTransformSinkEvent
 func goGstBaseTransformSinkEvent(self *C.GstBaseTransform, event *C.GstEvent) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		SinkEvent(self *GstBaseTransform, event *gst.Event) bool
 	})
@@ -161,7 +161,7 @@ func goGstBaseTransformSinkEvent(self *C.GstBaseTransform, event *C.GstEvent) C.
 
 //export goGstBaseTransformSrcEvent
 func goGstBaseTransformSrcEvent(self *C.GstBaseTransform, event *C.GstEvent) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		SrcEvent(self *GstBaseTransform, event *gst.Event) bool
 	})
@@ -170,7 +170,7 @@ func goGstBaseTransformSrcEvent(self *C.GstBaseTransform, event *C.GstEvent) C.g
 
 //export goGstBaseTransformStart
 func goGstBaseTransformStart(self *C.GstBaseTransform) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		Start(self *GstBaseTransform) bool
 	})
@@ -179,7 +179,7 @@ func goGstBaseTransformStart(self *C.GstBaseTransform) C.gboolean {
 
 //export goGstBaseTransformStop
 func goGstBaseTransformStop(self *C.GstBaseTransform) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		Stop(self *GstBaseTransform) bool
 	})
@@ -188,7 +188,7 @@ func goGstBaseTransformStop(self *C.GstBaseTransform) C.gboolean {
 
 //export goGstBaseTransformSubmitInputBuffer
 func goGstBaseTransformSubmitInputBuffer(self *C.GstBaseTransform, isDiscont C.gboolean, input *C.GstBuffer) C.GstFlowReturn {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		SubmitInputBuffer(self *GstBaseTransform, isDiscont bool, input *gst.Buffer) gst.FlowReturn
 	})
@@ -201,7 +201,7 @@ func goGstBaseTransformSubmitInputBuffer(self *C.GstBaseTransform, isDiscont C.g
 
 //export goGstBaseTransformTransform
 func goGstBaseTransformTransform(self *C.GstBaseTransform, inbuf, outbuf *C.GstBuffer) C.GstFlowReturn {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		Transform(self *GstBaseTransform, inbuf, outbuf *gst.Buffer) gst.FlowReturn
 	})
@@ -214,7 +214,7 @@ func goGstBaseTransformTransform(self *C.GstBaseTransform, inbuf, outbuf *C.GstB
 
 //export goGstBaseTransformTransformCaps
 func goGstBaseTransformTransformCaps(self *C.GstBaseTransform, direction C.GstPadDirection, caps, filter *C.GstCaps) *C.GstCaps {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		TransformCaps(self *GstBaseTransform, direction gst.PadDirection, caps, filter *gst.Caps) *gst.Caps
 	})
@@ -232,7 +232,7 @@ func goGstBaseTransformTransformCaps(self *C.GstBaseTransform, direction C.GstPa
 
 //export goGstBaseTransformTransformIP
 func goGstBaseTransformTransformIP(self *C.GstBaseTransform, buf *C.GstBuffer) C.GstFlowReturn {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		TransformIP(self *GstBaseTransform, buf *gst.Buffer) gst.FlowReturn
 	})
@@ -244,7 +244,7 @@ func goGstBaseTransformTransformIP(self *C.GstBaseTransform, buf *C.GstBuffer) C
 
 //export goGstBaseTransformTransformMeta
 func goGstBaseTransformTransformMeta(self *C.GstBaseTransform, outbuf *C.GstBuffer, meta *C.GstMeta, inbuf *C.GstBuffer) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		TransformMeta(self *GstBaseTransform, outbuf *gst.Buffer, meta *gst.Meta, inbuf *gst.Buffer) bool
 	})
@@ -258,7 +258,7 @@ func goGstBaseTransformTransformMeta(self *C.GstBaseTransform, outbuf *C.GstBuff
 
 //export goGstBaseTransformTransformSize
 func goGstBaseTransformTransformSize(self *C.GstBaseTransform, direction C.GstPadDirection, caps *C.GstCaps, size C.gsize, othercaps *C.GstCaps, outsize *C.gsize) C.gboolean {
-	elem := gst.FromObjectUnsafePrivate(unsafe.Pointer(self))
+	elem := glib.FromObjectUnsafePrivate(unsafe.Pointer(self))
 	caller := elem.(interface {
 		TransformSize(self *GstBaseTransform, direction gst.PadDirection, caps *gst.Caps, size int64, othercaps *gst.Caps) (ok bool, othersize int64)
 	})

gst/base/gst_base_transform_impl.go

@@ -61,7 +61,7 @@ import (
 
 var (
 	// ExtendsBaseTransform is an Extendable for extending a GstBaseTransform
-	ExtendsBaseTransform gst.Extendable = &extendsBaseTransform{parent: gst.ExtendsElement}
+	ExtendsBaseTransform glib.Extendable = &extendsBaseTransform{parent: gst.ExtendsElement}
 )
 
 // GstBaseTransformImpl is the interface for an element extending a GstBaseTransform.
@@ -151,13 +151,13 @@ type GstBaseTransformImpl interface {
 	TransformSize(self *GstBaseTransform, direction gst.PadDirection, caps *gst.Caps, size int64, othercaps *gst.Caps) (ok bool, othersize int64)
 }
 
-type extendsBaseTransform struct{ parent gst.Extendable }
+type extendsBaseTransform struct{ parent glib.Extendable }
 
 func (e *extendsBaseTransform) Type() glib.Type     { return glib.Type(C.gst_base_transform_get_type()) }
 func (e *extendsBaseTransform) ClassSize() int64    { return int64(C.sizeof_GstBaseTransformClass) }
 func (e *extendsBaseTransform) InstanceSize() int64 { return int64(C.sizeof_GstBaseTransform) }
 
-func (e *extendsBaseTransform) InitClass(klass unsafe.Pointer, elem gst.GoElement) {
+func (e *extendsBaseTransform) InitClass(klass unsafe.Pointer, elem glib.GoObjectSubclass) {
 	e.parent.InitClass(klass, elem)
 
 	class := C.toGstBaseTransformClass(klass)

gst/base/gst_push_src_exports.go

@@ -8,12 +8,13 @@ import "C"
 import (
 	"unsafe"
 
+	"github.com/tinyzimmer/go-glib/glib"
 	"github.com/tinyzimmer/go-gst/gst"
 )
 
 //export goGstPushSrcAlloc
 func goGstPushSrcAlloc(src *C.GstPushSrc, buf **C.GstBuffer) C.GstFlowReturn {
-	caller := gst.FromObjectUnsafePrivate(unsafe.Pointer(src)).(interface {
+	caller := glib.FromObjectUnsafePrivate(unsafe.Pointer(src)).(interface {
 		Alloc(*GstPushSrc) (gst.FlowReturn, *gst.Buffer)
 	})
 	ret, buffer := caller.Alloc(wrapGstPushSrc(src))
@@ -26,7 +27,7 @@ func goGstPushSrcAlloc(src *C.GstPushSrc, buf **C.GstBuffer) C.GstFlowReturn {
 
 //export goGstPushSrcCreate
 func goGstPushSrcCreate(src *C.GstPushSrc, buf **C.GstBuffer) C.GstFlowReturn {
-	caller := gst.FromObjectUnsafePrivate(unsafe.Pointer(src)).(interface {
+	caller := glib.FromObjectUnsafePrivate(unsafe.Pointer(src)).(interface {
 		Create(*GstPushSrc) (gst.FlowReturn, *gst.Buffer)
 	})
 	ret, buffer := caller.Create(wrapGstPushSrc(src))
@@ -39,7 +40,7 @@ func goGstPushSrcCreate(src *C.GstPushSrc, buf **C.GstBuffer) C.GstFlowReturn {
 
 //export goGstPushSrcFill
 func goGstPushSrcFill(src *C.GstPushSrc, buf *C.GstBuffer) C.GstFlowReturn {
-	caller := gst.FromObjectUnsafePrivate(unsafe.Pointer(src)).(interface {
+	caller := glib.FromObjectUnsafePrivate(unsafe.Pointer(src)).(interface {
 		Fill(*GstPushSrc, *gst.Buffer) gst.FlowReturn
 	})
 	return C.GstFlowReturn(caller.Fill(wrapGstPushSrc(src), gst.FromGstBufferUnsafe(unsafe.Pointer(buf))))

gst/base/gst_push_src_impl.go

@@ -23,7 +23,7 @@ import (
 
 var (
 	// ExtendsPushSrc is an Extendable for extending a GstPushSrc
-	ExtendsPushSrc gst.Extendable = &extendsPushSrc{parent: ExtendsBaseSrc}
+	ExtendsPushSrc glib.Extendable = &extendsPushSrc{parent: ExtendsBaseSrc}
 )
 
 // GstPushSrcImpl is the documented interface for an element extending a GstPushSrc. It does not have to
@@ -42,13 +42,13 @@ type GstPushSrcImpl interface {
 	Fill(*GstPushSrc, *gst.Buffer) gst.FlowReturn
 }
 
-type extendsPushSrc struct{ parent gst.Extendable }
+type extendsPushSrc struct{ parent glib.Extendable }
 
 func (e *extendsPushSrc) Type() glib.Type     { return glib.Type(C.gst_push_src_get_type()) }
 func (e *extendsPushSrc) ClassSize() int64    { return int64(C.sizeof_GstPushSrcClass) }
 func (e *extendsPushSrc) InstanceSize() int64 { return int64(C.sizeof_GstPushSrc) }
 
-func (e *extendsPushSrc) InitClass(klass unsafe.Pointer, elem gst.GoElement) {
+func (e *extendsPushSrc) InitClass(klass unsafe.Pointer, elem glib.GoObjectSubclass) {
 	e.parent.InitClass(klass, elem)
 
 	srcClass := C.toGstPushSrcClass(klass)

gst/cgo_exports.go

@@ -10,7 +10,6 @@ package gst
 import "C"
 
 import (
-	"reflect"
 	"time"
 	"unsafe"
 
@@ -245,38 +244,6 @@ func goGlobalPluginInit(plugin *C.GstPlugin) C.gboolean {
 	return gboolean(globalPluginInit(wrapPlugin(&glib.Object{GObject: glib.ToGObject(unsafe.Pointer(plugin))})))
 }
 
-//export goClassInit
-func goClassInit(klass C.gpointer, klassData C.gpointer) {
-	registerMutex.Lock()
-	defer registerMutex.Unlock()
-
-	ptr := unsafe.Pointer(klassData)
-	iface := gopointer.Restore(ptr)
-	defer gopointer.Unref(ptr)
-
-	data := iface.(*classData)
-	registeredClasses[klass] = data.elem
-
-	data.ext.InitClass(unsafe.Pointer(klass), data.elem)
-
-	C.g_type_class_add_private(klass, C.gsize(unsafe.Sizeof(uintptr(0))))
-
-	data.elem.ClassInit(wrapElementClass(klass))
-}
-
-//export goInstanceInit
-func goInstanceInit(obj *C.GTypeInstance, klass C.gpointer) {
-	registerMutex.Lock()
-	defer registerMutex.Unlock()
-
-	elem := registeredClasses[klass].New()
-	registeredClasses[klass] = elem
-
-	ptr := gopointer.Save(elem)
-	private := C.g_type_instance_get_private(obj, registeredTypes[reflect.TypeOf(registeredClasses[klass]).String()])
-	C.memcpy(unsafe.Pointer(private), unsafe.Pointer(&ptr), C.gsize(unsafe.Sizeof(uintptr(0))))
-}
-
 //export goURIHdlrGetURIType
 func goURIHdlrGetURIType(gtype C.GType) C.GstURIType {
 	return C.GstURIType(globalURIHdlr.GetURIType())
@@ -297,52 +264,16 @@ func goURIHdlrGetProtocols(gtype C.GType) **C.gchar {
 
 //export goURIHdlrGetURI
 func goURIHdlrGetURI(hdlr *C.GstURIHandler) *C.gchar {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(hdlr))
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(hdlr))
 	return (*C.gchar)(unsafe.Pointer(C.CString(iface.(URIHandler).GetURI())))
 }
 
 //export goURIHdlrSetURI
 func goURIHdlrSetURI(hdlr *C.GstURIHandler, uri *C.gchar, gerr **C.GError) C.gboolean {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(hdlr))
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(hdlr))
 	ok, err := iface.(URIHandler).SetURI(C.GoString(uri))
 	if err != nil {
 		C.g_set_error_literal(gerr, DomainLibrary.toQuark(), C.gint(LibraryErrorSettings), C.CString(err.Error()))
 	}
 	return gboolean(ok)
 }
-
-//export goObjectSetProperty
-func goObjectSetProperty(obj *C.GObject, propID C.guint, val *C.GValue, param *C.GParamSpec) {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(obj)).(interface {
-		SetProperty(obj *Object, id uint, value *glib.Value)
-	})
-	iface.SetProperty(wrapObject(toGObject(unsafe.Pointer(obj))), uint(propID-1), glib.ValueFromNative(unsafe.Pointer(val)))
-}
-
-//export goObjectGetProperty
-func goObjectGetProperty(obj *C.GObject, propID C.guint, value *C.GValue, param *C.GParamSpec) {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(obj)).(interface {
-		GetProperty(obj *Object, id uint) *glib.Value
-	})
-	val := iface.GetProperty(wrapObject(toGObject(unsafe.Pointer(obj))), uint(propID-1))
-	if val == nil {
-		return
-	}
-	C.g_value_copy((*C.GValue)(unsafe.Pointer(val.GValue)), value)
-}
-
-//export goObjectConstructed
-func goObjectConstructed(obj *C.GObject) {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(obj)).(interface {
-		Constructed(*Object)
-	})
-	iface.Constructed(wrapObject(toGObject(unsafe.Pointer(obj))))
-}
-
-//export goObjectFinalize
-func goObjectFinalize(obj *C.GObject, klass C.gpointer) {
-	registerMutex.Lock()
-	defer registerMutex.Unlock()
-	delete(registeredClasses, klass)
-	gopointer.Unref(privateFromObj(unsafe.Pointer(obj)))
-}

gst/g_error.go

@@ -1,35 +0,0 @@
-package gst
-
-// GError is a Go wrapper for a C GError in the context of GStreamer. It implements the error interface
-// and provides additional functions for retrieving debug strings and details.
-type GError struct {
-	errMsg, debugStr string
-	structure        *Structure
-
-	// used for message constructors
-	code ErrorCode
-}
-
-// Message is an alias to `Error()`. It's for clarity when this object
-// is parsed from a `GST_MESSAGE_INFO` or `GST_MESSAGE_WARNING`.
-func (e *GError) Message() string { return e.Error() }
-
-// Error implements the error interface and returns the error message.
-func (e *GError) Error() string { return e.errMsg }
-
-// DebugString returns any debug info alongside the error.
-func (e *GError) DebugString() string { return e.debugStr }
-
-// Structure returns the structure of the error message which may contain additional metadata.
-func (e *GError) Structure() *Structure { return e.structure }
-
-// Code returns the error code of the error message.
-func (e *GError) Code() ErrorCode { return e.code }
-
-// NewGError wraps the given error inside a GError (to be used with message constructors).
-func NewGError(code ErrorCode, err error) *GError {
-	return &GError{
-		errMsg: err.Error(),
-		code:   code,
-	}
-}

gst/g_main_loop.go

@@ -1,117 +0,0 @@
-package gst
-
-/*
-#include <glib.h>
-*/
-import "C"
-
-// MainLoop is a go representation of a GMainLoop. It can be used to block execution
-// while a pipeline is running, and also allows for event sources and signals to be used
-// across gstreamer objects.
-type MainLoop struct {
-	ptr *C.GMainLoop
-}
-
-// NewMainLoop creates a new GMainLoop. If ctx is nil then the default context is used.
-// If isRunning is true the loop will automatically start, however, this function will not
-// block. To block on the loop itself you will still need to call MainLoop.Run().
-//
-// A MainLoop is required when wishing to handle signals to/from elements asynchronously.
-// Otherwise you will need to iterate on the DefaultMainContext (or an external created one)
-// manually.
-func NewMainLoop(ctx *MainContext, isRunning bool) *MainLoop {
-	var gCtx *C.GMainContext
-	if ctx != nil {
-		gCtx = ctx.Instance()
-	}
-	loop := C.g_main_loop_new(gCtx, gboolean(isRunning))
-	return wrapMainLoop(loop)
-}
-
-// Instance returns the underlying GMainLoop instance.
-func (m *MainLoop) Instance() *C.GMainLoop { return m.ptr }
-
-// Ref increases the ref count on the main loop by one. It returns the original main loop
-// for convenience in return functions.
-func (m *MainLoop) Ref() *MainLoop {
-	return wrapMainLoop(C.g_main_loop_ref(m.Instance()))
-}
-
-// Unref decreases the reference count on a GMainLoop object by one. If the result is zero,
-// it frees the loop and all associated memory.
-func (m *MainLoop) Unref() { C.g_main_loop_unref(m.Instance()) }
-
-// Run a main loop until Quit() is called on the loop. If this is called from the thread of
-// the loop's GMainContext, it will process events from the loop, otherwise it will simply wait.
-func (m *MainLoop) Run() { C.g_main_loop_run(m.Instance()) }
-
-// RunError is an alias to Run() except it returns nil as soon as the main loop quits. This is for
-// convenience when wanting to use `return mainLoop.RunError()` at the end of a function that
-// expects an error.
-func (m *MainLoop) RunError() error {
-	m.Run()
-	return nil
-}
-
-// Quit stops a MainLoop from running. Any calls to Run() for the loop will return. Note that
-// sources that have already been dispatched when Quit() is called will still be executed.
-func (m *MainLoop) Quit() { C.g_main_loop_quit(m.Instance()) }
-
-// IsRunning returns true if this main loop is currently running.
-func (m *MainLoop) IsRunning() bool { return gobool(C.g_main_loop_is_running(m.Instance())) }
-
-// GetContext returns the GMainContext for this loop.
-func (m *MainLoop) GetContext() *MainContext {
-	ctx := C.g_main_loop_get_context(m.Instance())
-	return wrapMainContext(ctx)
-}
-
-// MainContext is a go representation of a GMainContext. Most of the time you will just
-// want to use the default GMainContext which can be specified either via DefaultMainContext()
-// or by passing nil to any function that requires it.
-type MainContext struct {
-	ptr *C.GMainContext
-}
-
-// NewMainContext returns a new main context. This object is still not fully implemented
-// and most of the time you will want to use the DefaultMainContext, or nil, when required.
-func NewMainContext() *MainContext {
-	return wrapMainContext(C.g_main_context_new())
-}
-
-// DefaultMainContext returns the default main context.
-func DefaultMainContext() *MainContext {
-	return wrapMainContext(C.g_main_context_default())
-}
-
-// Instance returns the underlying GMainContext instance.
-func (m *MainContext) Instance() *C.GMainContext { return m.ptr }
-
-// Ref increases the reference count on a GMainContext object by one.
-func (m *MainContext) Ref() *MainContext {
-	return wrapMainContext(C.g_main_context_ref(m.Instance()))
-}
-
-// Unref decreases the reference count on a GMainContext object by one.
-// If the result is zero, it frees the context and all associated memory.
-func (m *MainContext) Unref() { C.g_main_context_unref(m.Instance()) }
-
-// Iteration runs a single iteration for the given main loop. This involves checking
-// to see if any event sources are ready to be processed.
-//
-// If no events sources are ready AND mayBlock is TRUE, it waits for a source to become ready,
-// then dispatches the highest priority events sources that are ready.
-//
-// Otherwise, if mayBlock is FALSE it does not wait for sources to become ready, only those
-// highest priority events sources will be dispatched (if any), and then the function will return.
-//
-// The return value reflects whether or not any event sources were dispatched.
-func (m *MainContext) Iteration(mayBlock bool) bool {
-	return gobool(C.g_main_context_iteration(m.Instance(), gboolean(mayBlock)))
-}
-
-// Pending checks if any sources have pending events for this context.
-func (m *MainContext) Pending() bool { return gobool(C.g_main_context_pending(m.Instance())) }
-
-// Wakeup either stops a currently running Iteration() or the next Iteration() from blocking.
-func (m *MainContext) Wakeup() { C.g_main_context_wakeup(m.Instance()) }

gst/g_object.go

@@ -1,79 +0,0 @@
-package gst
-
-/*
-#include "gst.go.h"
-
-extern void   goObjectSetProperty  (GObject * object, guint property_id, const GValue * value, GParamSpec *pspec);
-extern void   goObjectGetProperty  (GObject * object, guint property_id, GValue * value, GParamSpec * pspec);
-extern void   goObjectConstructed  (GObject * object);
-extern void   goObjectFinalize     (GObject * object, gpointer klass);
-
-void objectFinalize (GObject * object)
-{
-	GObjectClass *parent = g_type_class_peek_parent((G_OBJECT_GET_CLASS(object)));
-	goObjectFinalize(object, G_OBJECT_GET_CLASS(object));
-	parent->finalize(object);
-}
-
-void objectConstructed (GObject * object)
-{
-	GObjectClass *parent = g_type_class_peek_parent((G_OBJECT_GET_CLASS(object)));
-	goObjectConstructed(object);
-	parent->constructed(object);
-}
-
-void  setGObjectClassSetProperty  (void * klass)  { ((GObjectClass *)klass)->set_property = goObjectSetProperty; }
-void  setGObjectClassGetProperty  (void * klass)  { ((GObjectClass *)klass)->get_property = goObjectGetProperty; }
-void  setGObjectClassConstructed  (void * klass)  { ((GObjectClass *)klass)->constructed = objectConstructed; }
-void  setGObjectClassFinalize     (void * klass)  { ((GObjectClass *)klass)->finalize = objectFinalize; }
-
-*/
-import "C"
-import (
-	"unsafe"
-
-	"github.com/tinyzimmer/go-glib/glib"
-)
-
-// GoObject is an interface that abstracts on the GObject. In almost all cases at least SetProperty and GetProperty
-// should be implemented by elements built from the go bindings.
-type GoObject interface {
-	// SetProperty should set the value of the property with the given id. ID is the index+1 of the parameter
-	// in the order it was registered.
-	SetProperty(obj *Object, id uint, value *glib.Value)
-	// GetProperty should retrieve the value of the property with the given id. ID is the index+1 of the parameter
-	// in the order it was registered.
-	GetProperty(obj *Object, id uint) *glib.Value
-	// Constructed is called when the Object has finished setting up.
-	Constructed(*Object)
-}
-
-// ExtendsObject signifies a GoElement that extends a GObject. It is the base Extendable
-// that all other implementations derive from.
-var ExtendsObject Extendable = &extendObject{}
-
-type extendObject struct{}
-
-func (e *extendObject) Type() glib.Type     { return glib.Type(C.g_object_get_type()) }
-func (e *extendObject) ClassSize() int64    { return int64(C.sizeof_GObjectClass) }
-func (e *extendObject) InstanceSize() int64 { return int64(C.sizeof_GObject) }
-
-func (e *extendObject) InitClass(klass unsafe.Pointer, elem GoElement) {
-	C.setGObjectClassFinalize(klass)
-
-	if _, ok := elem.(interface {
-		SetProperty(obj *Object, id uint, value *glib.Value)
-	}); ok {
-		C.setGObjectClassSetProperty(klass)
-	}
-	if _, ok := elem.(interface {
-		GetProperty(obj *Object, id uint) *glib.Value
-	}); ok {
-		C.setGObjectClassGetProperty(klass)
-	}
-	if _, ok := elem.(interface {
-		Constructed(*Object)
-	}); ok {
-		C.setGObjectClassConstructed(klass)
-	}
-}

gst/g_object_class.go

@@ -1,75 +0,0 @@
-package gst
-
-/*
-#include "gst.go.h"
-
-extern GstURIType              goURIHdlrGetURIType        (GType type);
-extern const gchar * const *   goURIHdlrGetProtocols      (GType type);
-extern gchar *                 goURIHdlrGetURI            (GstURIHandler * handler);
-extern gboolean                goURIHdlrSetURI            (GstURIHandler * handler,
-                                                           const gchar   * uri,
-														   GError       ** error);
-
-void uriHandlerInit (gpointer iface, gpointer iface_data)
-{
-	((GstURIHandlerInterface*)iface)->get_type = goURIHdlrGetURIType;
-	((GstURIHandlerInterface*)iface)->get_protocols = goURIHdlrGetProtocols;
-	((GstURIHandlerInterface*)iface)->get_uri = goURIHdlrGetURI;
-	((GstURIHandlerInterface*)iface)->set_uri = goURIHdlrSetURI;
-}
-*/
-import "C"
-import (
-	"unsafe"
-
-	"github.com/tinyzimmer/go-glib/glib"
-)
-
-// ObjectClass is a loose binding around the glib GObjectClass.
-// It forms the base of a GstElementClass.
-type ObjectClass struct {
-	ptr *C.GObjectClass
-}
-
-// Unsafe is a convenience wrapper to return the unsafe.Pointer of the underlying C instance.
-func (o *ObjectClass) Unsafe() unsafe.Pointer { return unsafe.Pointer(o.ptr) }
-
-// Instance returns the underlying C GObjectClass pointer
-func (o *ObjectClass) Instance() *C.GObjectClass { return o.ptr }
-
-// InstallProperties will install the given ParameterSpecs to the object class.
-// They will be IDed in the order they are provided.
-func (o *ObjectClass) InstallProperties(params []*ParamSpec) {
-	for idx, prop := range params {
-		C.g_object_class_install_property(
-			o.Instance(),
-			C.guint(idx+1),
-			prop.paramSpec,
-		)
-	}
-}
-
-// TypeInstance is a loose binding around the glib GTypeInstance. It exposes methods required
-// to register the various capabilities of an element.
-type TypeInstance struct {
-	gtype  C.GType
-	gotype GoElement
-}
-
-// AddInterface will add an interface implementation for the type referenced by this object.
-func (t *TypeInstance) AddInterface(iface glib.Type) {
-	ifaceInfo := C.GInterfaceInfo{
-		interface_data:     nil,
-		interface_finalize: nil,
-	}
-	switch iface {
-	case InterfaceURIHandler:
-		globalURIHdlr = t.gotype.(URIHandler)
-		ifaceInfo.interface_init = C.GInterfaceInitFunc(C.uriHandlerInit)
-	}
-	C.g_type_add_interface_static(
-		(C.GType)(t.gtype),
-		(C.GType)(iface),
-		&ifaceInfo,
-	)
-}

gst/g_param_spec.go

@@ -1,244 +0,0 @@
-package gst
-
-// #include "gst.go.h"
-import "C"
-
-import (
-	"strings"
-	"unsafe"
-
-	"github.com/tinyzimmer/go-glib/glib"
-)
-
-// ParamSpec is a go representation of a C GParamSpec
-type ParamSpec struct{ paramSpec *C.GParamSpec }
-
-// Name returns the name of this parameter.
-func (p *ParamSpec) Name() string {
-	return C.GoString(C.g_param_spec_get_name(p.paramSpec))
-}
-
-// Blurb returns the blurb for this parameter.
-func (p *ParamSpec) Blurb() string {
-	return C.GoString(C.g_param_spec_get_blurb(p.paramSpec))
-}
-
-// Flags returns the flags for this parameter.
-func (p *ParamSpec) Flags() ParameterFlags {
-	return ParameterFlags(p.paramSpec.flags)
-}
-
-// ValueType returns the GType for the value inside this parameter.
-func (p *ParamSpec) ValueType() glib.Type {
-	return glib.Type(p.paramSpec.value_type)
-}
-
-// OwnerType returns the Gtype for the owner of this parameter.
-func (p *ParamSpec) OwnerType() glib.Type {
-	return glib.Type(p.paramSpec.owner_type)
-}
-
-// Unref the underlying paramater spec.
-func (p *ParamSpec) Unref() { C.g_param_spec_unref(p.paramSpec) }
-
-// UIntRange returns the range of the Uint stored in this parameter spec.
-func (p *ParamSpec) UIntRange() (uint, uint) {
-	paramUint := C.getParamUInt(p.paramSpec)
-	return uint(paramUint.minimum), uint(paramUint.maximum)
-}
-
-// IntRange returns the range of the Int stored in this parameter spec.
-func (p *ParamSpec) IntRange() (int, int) {
-	paramUint := C.getParamInt(p.paramSpec)
-	return int(paramUint.minimum), int(paramUint.maximum)
-}
-
-// UInt64Range returns the range of the Uint64 stored in this parameter spec.
-func (p *ParamSpec) UInt64Range() (uint64, uint64) {
-	paramUint := C.getParamUInt64(p.paramSpec)
-	return uint64(paramUint.minimum), uint64(paramUint.maximum)
-}
-
-// Int64Range returns the range of the Int64 stored in this parameter spec.
-func (p *ParamSpec) Int64Range() (int64, int64) {
-	paramUint := C.getParamInt64(p.paramSpec)
-	return int64(paramUint.minimum), int64(paramUint.maximum)
-}
-
-// FloatRange returns the range of the Float stored in this parameter spec.
-func (p *ParamSpec) FloatRange() (float64, float64) {
-	paramUint := C.getParamFloat(p.paramSpec)
-	return float64(paramUint.minimum), float64(paramUint.maximum)
-}
-
-// DoubleRange returns the range of the Double stored in this parameter spec.
-func (p *ParamSpec) DoubleRange() (float64, float64) {
-	paramUint := C.getParamDouble(p.paramSpec)
-	return float64(paramUint.minimum), float64(paramUint.maximum)
-}
-
-// IsCaps returns true if this parameter contains a caps object.
-func (p *ParamSpec) IsCaps() bool { return gobool(C.isParamSpecTypeCaps(p.paramSpec)) }
-
-// IsEnum returns true if this parameter contains an enum.
-func (p *ParamSpec) IsEnum() bool { return gobool(C.isParamSpecEnum(p.paramSpec)) }
-
-// IsFlags returns true if this paramater contains flags.
-func (p *ParamSpec) IsFlags() bool { return gobool(C.isParamSpecFlags(p.paramSpec)) }
-
-// IsObject returns true if this parameter contains an object.
-func (p *ParamSpec) IsObject() bool { return gobool(C.isParamSpecObject(p.paramSpec)) }
-
-// IsBoxed returns true if this parameter contains a boxed object.
-func (p *ParamSpec) IsBoxed() bool { return gobool(C.isParamSpecBoxed(p.paramSpec)) }
-
-// IsPointer returns true if this paramater contains a pointer.
-func (p *ParamSpec) IsPointer() bool { return gobool(C.isParamSpecPointer(p.paramSpec)) }
-
-// IsFraction returns true if this parameter contains a fraction.
-func (p *ParamSpec) IsFraction() bool { return gobool(C.isParamSpecFraction(p.paramSpec)) }
-
-// IsGstArray returns true if this parameter contains a Gst array.
-func (p *ParamSpec) IsGstArray() bool { return gobool(C.isParamSpecGstArray(p.paramSpec)) }
-
-// EnumValue is a go representation of a GEnumValue
-type EnumValue struct {
-	Value                int
-	ValueNick, ValueName string
-}
-
-// GetEnumValues returns the possible enum values for this parameter.
-func (p *ParamSpec) GetEnumValues() []*EnumValue {
-	var gsize C.guint
-	gEnumValues := C.getEnumValues(p.paramSpec, &gsize)
-	size := int(gsize)
-	out := make([]*EnumValue, size)
-	for idx, enumVal := range (*[1 << 30]C.GEnumValue)(unsafe.Pointer(gEnumValues))[:size:size] {
-		out[idx] = &EnumValue{
-			Value:     int(enumVal.value),
-			ValueNick: C.GoString(enumVal.value_nick),
-			ValueName: C.GoString(enumVal.value_name),
-		}
-	}
-	return out
-}
-
-// FlagsValue is a go representation of GFlagsValue
-type FlagsValue struct {
-	Value                int
-	ValueName, ValueNick string
-}
-
-// GetFlagValues returns the possible flags for this parameter.
-func (p *ParamSpec) GetFlagValues() []*FlagsValue {
-	var gSize C.guint
-	gFlags := C.getParamSpecFlags(p.paramSpec, &gSize)
-	size := int(gSize)
-	out := make([]*FlagsValue, size)
-	for idx, flag := range (*[1 << 30]C.GFlagsValue)(unsafe.Pointer(gFlags))[:size:size] {
-		out[idx] = &FlagsValue{
-			Value:     int(flag.value),
-			ValueNick: C.GoString(flag.value_nick),
-			ValueName: C.GoString(flag.value_name),
-		}
-	}
-	return out
-}
-
-// ParameterFlags is a go cast of GParamFlags.
-type ParameterFlags int
-
-// Has returns true if these flags contain the provided ones.
-func (p ParameterFlags) Has(b ParameterFlags) bool { return p&b != 0 }
-
-// Type casting of GParamFlags
-const (
-	ParameterReadable       ParameterFlags = C.G_PARAM_READABLE // the parameter is readable
-	ParameterWritable                      = C.G_PARAM_WRITABLE // the parameter is writable
-	ParameterReadWrite                     = ParameterReadable | ParameterWritable
-	ParameterConstruct                     = C.G_PARAM_CONSTRUCT       // the parameter will be set upon object construction
-	ParameterConstructOnly                 = C.G_PARAM_CONSTRUCT_ONLY  // the parameter can only be set upon object construction
-	ParameterLaxValidation                 = C.G_PARAM_LAX_VALIDATION  // upon parameter conversion (see g_param_value_convert()) strict validation is not required
-	ParameterStaticName                    = C.G_PARAM_STATIC_NAME     // the string used as name when constructing the parameter is guaranteed to remain valid and unmodified for the lifetime of the parameter. Since 2.8
-	ParameterStaticNick                    = C.G_PARAM_STATIC_NICK     // the string used as nick when constructing the parameter is guaranteed to remain valid and unmmodified for the lifetime of the parameter. Since 2.8
-	ParameterStaticBlurb                   = C.G_PARAM_STATIC_BLURB    // the string used as blurb when constructing the parameter is guaranteed to remain valid and unmodified for the lifetime of the parameter. Since 2.8
-	ParameterExplicitNotify                = C.G_PARAM_EXPLICIT_NOTIFY // calls to g_object_set_property() for this property will not automatically result in a "notify" signal being emitted: the implementation must call g_object_notify() themselves in case the property actually changes. Since: 2.42.
-	ParameterDeprecated                    = C.G_PARAM_DEPRECATED      // the parameter is deprecated and will be removed in a future version. A warning will be generated if it is used while running with G_ENABLE_DIAGNOSTIC=1. Since 2.26
-	ParameterControllable                  = C.GST_PARAM_CONTROLLABLE
-	ParameterMutablePlaying                = C.GST_PARAM_MUTABLE_PLAYING
-	ParameterMutablePaused                 = C.GST_PARAM_MUTABLE_PAUSED
-	ParameterMutableReady                  = C.GST_PARAM_MUTABLE_READY
-)
-
-var allFlags = []ParameterFlags{
-	ParameterReadable,
-	ParameterWritable,
-	ParameterConstruct,
-	ParameterConstructOnly,
-	ParameterLaxValidation,
-	ParameterStaticName,
-	ParameterStaticNick,
-	ParameterStaticBlurb,
-	ParameterExplicitNotify,
-	ParameterDeprecated,
-	ParameterControllable,
-	ParameterMutablePlaying,
-	ParameterMutablePaused,
-	ParameterMutableReady,
-}
-
-var allFlagStrings = []string{
-	"readable",
-	"writable",
-	"construct",
-	"construct only",
-	"lax validation",
-	"deprecated",
-	"static name",
-	"static nick",
-	"static blurb",
-	"explicitly notify",
-	"deprecated",
-	"controllable",
-	"changeable in NULL, READY, PAUSED or PLAYING state",
-	"changeable only in NULL, READY or PAUSED state",
-	"changeable only in NULL or READY state",
-}
-
-func (p ParameterFlags) String() string {
-	out := make([]string, 0)
-	for idx, param := range allFlags {
-		if p.Has(param) {
-			out = append(out, allFlagStrings[idx])
-		}
-	}
-	return strings.Join(out, ", ")
-}
-
-// GstFlagsString returns a string of the flags that are relevant specifically
-// to gstreamer.
-func (p ParameterFlags) GstFlagsString() string {
-	out := make([]string, 0)
-	if p.Has(ParameterReadable) {
-		out = append(out, "readable")
-	}
-	if p.Has(ParameterWritable) {
-		out = append(out, "writable")
-	}
-	if p.Has(ParameterControllable) {
-		out = append(out, "controllable")
-	}
-	if p.Has(ParameterMutablePlaying) {
-		out = append(out, "changeable in NULL, READY, PAUSED or PLAYING state")
-	}
-	if p.Has(ParameterMutablePaused) {
-		out = append(out, "changeable only in NULL, READY or PAUSED state")
-	}
-	if p.Has(ParameterMutableReady) {
-		out = append(out, "changeable only in NULL or READY state")
-	}
-	if p.Has(ParameterDeprecated) {
-		out = append(out, "deprecated")
-	}
-	return strings.Join(out, ", ")
-}

gst/g_param_spec_constructors.go

@@ -1,131 +0,0 @@
-package gst
-
-// #include "gst.go.h"
-import "C"
-
-import "github.com/tinyzimmer/go-glib/glib"
-
-// NewStringParam returns a new ParamSpec that will hold a string value.
-func NewStringParam(name, nick, blurb string, defaultValue *string, flags ParameterFlags) *ParamSpec {
-	var cdefault *C.gchar
-	if defaultValue != nil {
-		cdefault = C.CString(*defaultValue)
-	}
-	paramSpec := C.g_param_spec_string(
-		(*C.gchar)(C.CString(name)),
-		(*C.gchar)(C.CString(nick)),
-		(*C.gchar)(C.CString(blurb)),
-		(*C.gchar)(cdefault),
-		C.GParamFlags(flags),
-	)
-	return &ParamSpec{paramSpec: paramSpec}
-}
-
-// NewBoolParam creates a new ParamSpec that will hold a boolean value.
-func NewBoolParam(name, nick, blurb string, defaultValue bool, flags ParameterFlags) *ParamSpec {
-	paramSpec := C.g_param_spec_boolean(
-		(*C.gchar)(C.CString(name)),
-		(*C.gchar)(C.CString(nick)),
-		(*C.gchar)(C.CString(blurb)),
-		gboolean(defaultValue),
-		C.GParamFlags(flags),
-	)
-	return &ParamSpec{paramSpec: paramSpec}
-}
-
-// NewIntParam creates a new ParamSpec that will hold a signed integer value.
-func NewIntParam(name, nick, blurb string, min, max, defaultValue int, flags ParameterFlags) *ParamSpec {
-	paramSpec := C.g_param_spec_int(
-		(*C.gchar)(C.CString(name)),
-		(*C.gchar)(C.CString(nick)),
-		(*C.gchar)(C.CString(blurb)),
-		C.gint(min),
-		C.gint(max),
-		C.gint(defaultValue),
-		C.GParamFlags(flags),
-	)
-	return &ParamSpec{paramSpec: paramSpec}
-}
-
-// NewUintParam creates a new ParamSpec that will hold an unsigned integer value.
-func NewUintParam(name, nick, blurb string, min, max, defaultValue uint, flags ParameterFlags) *ParamSpec {
-	paramSpec := C.g_param_spec_uint(
-		(*C.gchar)(C.CString(name)),
-		(*C.gchar)(C.CString(nick)),
-		(*C.gchar)(C.CString(blurb)),
-		C.guint(min),
-		C.guint(max),
-		C.guint(defaultValue),
-		C.GParamFlags(flags),
-	)
-	return &ParamSpec{paramSpec: paramSpec}
-}
-
-// NewInt64Param creates a new ParamSpec that will hold a signed 64-bit integer value.
-func NewInt64Param(name, nick, blurb string, min, max, defaultValue int64, flags ParameterFlags) *ParamSpec {
-	paramSpec := C.g_param_spec_int64(
-		(*C.gchar)(C.CString(name)),
-		(*C.gchar)(C.CString(nick)),
-		(*C.gchar)(C.CString(blurb)),
-		C.gint64(min),
-		C.gint64(max),
-		C.gint64(defaultValue),
-		C.GParamFlags(flags),
-	)
-	return &ParamSpec{paramSpec: paramSpec}
-}
-
-// NewUint64Param creates a new ParamSpec that will hold an unsigned 64-bit integer value.
-func NewUint64Param(name, nick, blurb string, min, max, defaultValue uint64, flags ParameterFlags) *ParamSpec {
-	paramSpec := C.g_param_spec_uint64(
-		(*C.gchar)(C.CString(name)),
-		(*C.gchar)(C.CString(nick)),
-		(*C.gchar)(C.CString(blurb)),
-		C.guint64(min),
-		C.guint64(max),
-		C.guint64(defaultValue),
-		C.GParamFlags(flags),
-	)
-	return &ParamSpec{paramSpec: paramSpec}
-}
-
-// NewFloat32Param creates a new ParamSpec that will hold a 32-bit float value.
-func NewFloat32Param(name, nick, blurb string, min, max, defaultValue float32, flags ParameterFlags) *ParamSpec {
-	paramSpec := C.g_param_spec_float(
-		(*C.gchar)(C.CString(name)),
-		(*C.gchar)(C.CString(nick)),
-		(*C.gchar)(C.CString(blurb)),
-		C.gfloat(min),
-		C.gfloat(max),
-		C.gfloat(defaultValue),
-		C.GParamFlags(flags),
-	)
-	return &ParamSpec{paramSpec: paramSpec}
-}
-
-// NewFloat64Param creates a new ParamSpec that will hold a 64-bit float value.
-func NewFloat64Param(name, nick, blurb string, min, max, defaultValue float64, flags ParameterFlags) *ParamSpec {
-	paramSpec := C.g_param_spec_double(
-		(*C.gchar)(C.CString(name)),
-		(*C.gchar)(C.CString(nick)),
-		(*C.gchar)(C.CString(blurb)),
-		C.gdouble(min),
-		C.gdouble(max),
-		C.gdouble(defaultValue),
-		C.GParamFlags(flags),
-	)
-	return &ParamSpec{paramSpec: paramSpec}
-}
-
-// NewBoxedParam creates a new ParamSpec containing a boxed type. Some helper type castings are included
-// in these bindings.
-func NewBoxedParam(name, nick, blurb string, boxedType glib.Type, flags ParameterFlags) *ParamSpec {
-	paramSpec := C.g_param_spec_boxed(
-		(*C.gchar)(C.CString(name)),
-		(*C.gchar)(C.CString(nick)),
-		(*C.gchar)(C.CString(blurb)),
-		C.GType(boxedType),
-		C.GParamFlags(flags),
-	)
-	return &ParamSpec{paramSpec: paramSpec}
-}

gst/gst.go.h

@@ -10,7 +10,6 @@ typedef struct _PadDestroyNotifyInfo {
 	gpointer func_map_ptr;
 } PadDestroyNotifyInfo;
 
-
 /*
 	Type Castings
 */
@@ -173,49 +172,6 @@ inline gboolean        gstObjectFlagIsSet      (GstObject * obj, GstElementFlags
 inline GstTocSetter *  toTocSetter (GstElement * elem) { return GST_TOC_SETTER(elem); }
 inline GstTagSetter *  toTagSetter (GstElement *elem)  { return GST_TAG_SETTER(elem); }
 
-/*
-	ParamSpec Utilities
-*/
-
-inline gboolean        isParamSpecTypeCaps   (GParamSpec * p) { return p->value_type == GST_TYPE_CAPS; }
-inline gboolean        isParamSpecEnum       (GParamSpec * p) { return (G_IS_PARAM_SPEC_ENUM(p)); }
-inline gboolean        isParamSpecFlags      (GParamSpec * p) { return (G_IS_PARAM_SPEC_FLAGS(p)); }
-inline gboolean        isParamSpecObject     (GParamSpec * p) { return (G_IS_PARAM_SPEC_OBJECT(p)); }
-inline gboolean        isParamSpecBoxed      (GParamSpec * p) { return (G_IS_PARAM_SPEC_BOXED(p)); }
-inline gboolean        isParamSpecPointer    (GParamSpec * p) { return (G_IS_PARAM_SPEC_POINTER(p)); }
-inline gboolean        isParamSpecFraction   (GParamSpec * p) { return (GST_IS_PARAM_SPEC_FRACTION(p)); }
-inline gboolean        isParamSpecGstArray   (GParamSpec * p) { return p->value_type == GST_TYPE_ARRAY; }
-
-inline GParamSpecUInt *    getParamUInt    (GParamSpec * param) { return (G_PARAM_SPEC_UINT(param)); }
-inline GParamSpecInt *     getParamInt     (GParamSpec * param) { return (G_PARAM_SPEC_INT(param)); }
-inline GParamSpecUInt64 *  getParamUInt64  (GParamSpec * param) { return (G_PARAM_SPEC_UINT64(param)); }
-inline GParamSpecInt64 *   getParamInt64   (GParamSpec * param) { return (G_PARAM_SPEC_INT64(param)); }
-inline GParamSpecFloat *   getParamFloat   (GParamSpec * param) { return (G_PARAM_SPEC_FLOAT(param)); }
-inline GParamSpecDouble *  getParamDouble  (GParamSpec * param) { return (G_PARAM_SPEC_DOUBLE(param)); }
-
-inline GEnumValue *    getEnumValues         (GParamSpec * p, guint * size)
-{
-	GEnumValue * values;
-    values = G_ENUM_CLASS (g_type_class_ref (p->value_type))->values;
-	guint i = 0;
-	while (values[i].value_name) {
-    	++i;
-    }
-	*size = i;
-	return values;
-}
-
-inline GFlagsValue *   getParamSpecFlags     (GParamSpec * p, guint * size)
-{
-	GParamSpecFlags * pflags = G_PARAM_SPEC_FLAGS (p);
-	GFlagsValue * vals = pflags->flags_class->values;
-	guint i = 0;
-	while (vals[i].value_name) {
-    	++i;
-    }
-	*size = i;
-	return vals;
-}
 
 /* Misc */
 

gst/gst_element.go

@@ -108,12 +108,12 @@ const (
 
 // RegisterElement creates a new elementfactory capable of instantiating objects of the given GoElement
 // and adds the factory to the plugin. A higher rank means more importance when autoplugging.
-func RegisterElement(plugin *Plugin, name string, rank Rank, elem GoElement, extends Extendable) bool {
+func RegisterElement(plugin *Plugin, name string, rank Rank, elem glib.GoObjectSubclass, extends glib.Extendable) bool {
 	return gobool(C.gst_element_register(
 		plugin.Instance(),
 		C.CString(name),
 		C.guint(rank),
-		gtypeForGoElement(name, elem, extends),
+		C.GType(glib.RegisterGoType(name, elem, extends)),
 	))
 }
 
@@ -452,7 +452,7 @@ func (e *Element) URIHandler() URIHandler {
 }
 
 // ExtendsElement signifies a GoElement that extends a GstElement.
-var ExtendsElement Extendable = &extendElement{parent: ExtendsObject}
+var ExtendsElement glib.Extendable = &extendElement{parent: glib.ExtendsObject}
 
 // ElementImpl is an interface containing go quivalents of the virtual methods that can be
 // overridden by a plugin extending an Element.
@@ -492,13 +492,13 @@ type ElementImpl interface {
 	StateChanged(self *Element, old, new, pending State)
 }
 
-type extendElement struct{ parent Extendable }
+type extendElement struct{ parent glib.Extendable }
 
 func (e *extendElement) Type() glib.Type     { return glib.Type(C.gst_element_get_type()) }
 func (e *extendElement) ClassSize() int64    { return int64(C.sizeof_GstElementClass) }
 func (e *extendElement) InstanceSize() int64 { return int64(C.sizeof_GstElement) }
 
-func (e *extendElement) InitClass(klass unsafe.Pointer, elem GoElement) {
+func (e *extendElement) InitClass(klass unsafe.Pointer, elem glib.GoObjectSubclass) {
 	e.parent.InitClass(klass, elem)
 
 	elemClass := C.toGstElementClass(klass)

gst/gst_element_class.go

@@ -4,10 +4,19 @@ package gst
 #include "gst.go.h"
 */
 import "C"
-import "unsafe"
+import (
+	"unsafe"
+
+	"github.com/tinyzimmer/go-glib/glib"
+)
 
 // ElementClass represents the subclass of an element provided by a plugin.
-type ElementClass struct{ *ObjectClass }
+type ElementClass struct{ *glib.ObjectClass }
+
+// ToElementClass wraps the given ObjectClass in an ElementClass instance.
+func ToElementClass(klass *glib.ObjectClass) *ElementClass {
+	return &ElementClass{klass}
+}
 
 // Instance returns the underlying GstElementClass instance.
 func (e *ElementClass) Instance() *C.GstElementClass {

gst/gst_element_exports.go

@@ -8,11 +8,13 @@ import "C"
 import (
 	"time"
 	"unsafe"
+
+	"github.com/tinyzimmer/go-glib/glib"
 )
 
 //export goGstElementClassChangeState
 func goGstElementClassChangeState(elem *C.GstElement, change C.GstStateChange) C.GstStateChangeReturn {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		ChangeState(*Element, StateChange) StateChangeReturn
 	})
 	return C.GstStateChangeReturn(iface.ChangeState(wrapCbElem(elem), StateChange(change)))
@@ -20,7 +22,7 @@ func goGstElementClassChangeState(elem *C.GstElement, change C.GstStateChange) C
 
 //export goGstElementClassGetState
 func goGstElementClassGetState(elem *C.GstElement, state, pending *C.GstState, timeout C.GstClockTime) C.GstStateChangeReturn {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		GetState(*Element, time.Duration) (ret StateChangeReturn, current, pending State)
 	})
 	ret, cur, pend := iface.GetState(wrapCbElem(elem), time.Duration(timeout)*time.Nanosecond)
@@ -34,7 +36,7 @@ func goGstElementClassGetState(elem *C.GstElement, state, pending *C.GstState, t
 
 //export goGstElementClassNoMorePads
 func goGstElementClassNoMorePads(elem *C.GstElement) {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		NoMorePads(*Element)
 	})
 	iface.NoMorePads(wrapCbElem(elem))
@@ -42,7 +44,7 @@ func goGstElementClassNoMorePads(elem *C.GstElement) {
 
 //export goGstElementClassPadAdded
 func goGstElementClassPadAdded(elem *C.GstElement, pad *C.GstPad) {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		PadAdded(*Element, *Pad)
 	})
 	iface.PadAdded(wrapCbElem(elem), wrapPad(toGObject(unsafe.Pointer(pad))))
@@ -50,7 +52,7 @@ func goGstElementClassPadAdded(elem *C.GstElement, pad *C.GstPad) {
 
 //export goGstElementClassPadRemoved
 func goGstElementClassPadRemoved(elem *C.GstElement, pad *C.GstPad) {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		PadRemoved(*Element, *Pad)
 	})
 	iface.PadRemoved(wrapCbElem(elem), wrapPad(toGObject(unsafe.Pointer(pad))))
@@ -58,7 +60,7 @@ func goGstElementClassPadRemoved(elem *C.GstElement, pad *C.GstPad) {
 
 //export goGstElementClassPostMessage
 func goGstElementClassPostMessage(elem *C.GstElement, msg *C.GstMessage) C.gboolean {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		PostMessage(*Element, *Message) bool
 	})
 	return gboolean(iface.PostMessage(wrapCbElem(elem), wrapMessage(msg)))
@@ -66,7 +68,7 @@ func goGstElementClassPostMessage(elem *C.GstElement, msg *C.GstMessage) C.gbool
 
 //export goGstElementClassProvideClock
 func goGstElementClassProvideClock(elem *C.GstElement) *C.GstClock {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		ProvideClock(*Element) *Clock
 	})
 	clock := iface.ProvideClock(wrapCbElem(elem))
@@ -78,7 +80,7 @@ func goGstElementClassProvideClock(elem *C.GstElement) *C.GstClock {
 
 //export goGstElementClassQuery
 func goGstElementClassQuery(elem *C.GstElement, query *C.GstQuery) C.gboolean {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		Query(*Element, *Query) bool
 	})
 	return gboolean(iface.Query(wrapCbElem(elem), wrapQuery(query)))
@@ -86,7 +88,7 @@ func goGstElementClassQuery(elem *C.GstElement, query *C.GstQuery) C.gboolean {
 
 //export goGstElementClassReleasePad
 func goGstElementClassReleasePad(elem *C.GstElement, pad *C.GstPad) {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		ReleasePad(*Element, *Pad)
 	})
 	iface.ReleasePad(wrapCbElem(elem), wrapPad(toGObject(unsafe.Pointer(pad))))
@@ -94,7 +96,7 @@ func goGstElementClassReleasePad(elem *C.GstElement, pad *C.GstPad) {
 
 //export goGstElementClassRequestNewPad
 func goGstElementClassRequestNewPad(elem *C.GstElement, templ *C.GstPadTemplate, name *C.gchar, caps *C.GstCaps) *C.GstPad {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		RequestNewPad(self *Element, templ *PadTemplate, name string, caps *Caps) *Pad
 	})
 	pad := iface.RequestNewPad(
@@ -111,7 +113,7 @@ func goGstElementClassRequestNewPad(elem *C.GstElement, templ *C.GstPadTemplate,
 
 //export goGstElementClassSendEvent
 func goGstElementClassSendEvent(elem *C.GstElement, event *C.GstEvent) C.gboolean {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		SendEvent(*Element, *Event) bool
 	})
 	return gboolean(iface.SendEvent(wrapCbElem(elem), wrapEvent(event)))
@@ -119,7 +121,7 @@ func goGstElementClassSendEvent(elem *C.GstElement, event *C.GstEvent) C.gboolea
 
 //export goGstElementClassSetBus
 func goGstElementClassSetBus(elem *C.GstElement, bus *C.GstBus) {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		SetBus(*Element, *Bus)
 	})
 	iface.SetBus(wrapCbElem(elem), wrapBus(toGObject(unsafe.Pointer(bus))))
@@ -127,7 +129,7 @@ func goGstElementClassSetBus(elem *C.GstElement, bus *C.GstBus) {
 
 //export goGstElementClassSetClock
 func goGstElementClassSetClock(elem *C.GstElement, clock *C.GstClock) C.gboolean {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		SetClock(*Element, *Clock) bool
 	})
 	return gboolean(iface.SetClock(wrapCbElem(elem), wrapClock(toGObject(unsafe.Pointer(clock)))))
@@ -135,7 +137,7 @@ func goGstElementClassSetClock(elem *C.GstElement, clock *C.GstClock) C.gboolean
 
 //export goGstElementClassSetContext
 func goGstElementClassSetContext(elem *C.GstElement, ctx *C.GstContext) {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		SetContext(*Element, *Context)
 	})
 	iface.SetContext(wrapCbElem(elem), wrapContext(ctx))
@@ -143,7 +145,7 @@ func goGstElementClassSetContext(elem *C.GstElement, ctx *C.GstContext) {
 
 //export goGstElementClassSetState
 func goGstElementClassSetState(elem *C.GstElement, state C.GstState) C.GstStateChangeReturn {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		SetState(*Element, State) StateChangeReturn
 	})
 	return C.GstStateChangeReturn(iface.SetState(wrapCbElem(elem), State(state)))
@@ -151,7 +153,7 @@ func goGstElementClassSetState(elem *C.GstElement, state C.GstState) C.GstStateC
 
 //export goGstElementClassStateChanged
 func goGstElementClassStateChanged(elem *C.GstElement, old, new, pending C.GstState) {
-	iface := FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
+	iface := glib.FromObjectUnsafePrivate(unsafe.Pointer(elem)).(interface {
 		StateChanged(self *Element, old, new, pending State)
 	})
 	iface.StateChanged(wrapCbElem(elem), State(old), State(new), State(pending))

gst/gst_errors.go

@@ -97,3 +97,37 @@ const (
 	StreamErrorDecrypt        ErrorCode = C.GST_STREAM_ERROR_DECRYPT         // (12) – used when the stream is encrypted and can't be decrypted because this is not supported by the element.
 	StreamErrorDecryptNoKey   ErrorCode = C.GST_STREAM_ERROR_DECRYPT_NOKEY   // (13) – used when the stream is encrypted and can't be decrypted because no suitable key is available.
 )
+
+// GError is a Go wrapper for a C GError in the context of GStreamer. It implements the error interface
+// and provides additional functions for retrieving debug strings and details.
+type GError struct {
+	errMsg, debugStr string
+	structure        *Structure
+
+	// used for message constructors
+	code ErrorCode
+}
+
+// Message is an alias to `Error()`. It's for clarity when this object
+// is parsed from a `GST_MESSAGE_INFO` or `GST_MESSAGE_WARNING`.
+func (e *GError) Message() string { return e.Error() }
+
+// Error implements the error interface and returns the error message.
+func (e *GError) Error() string { return e.errMsg }
+
+// DebugString returns any debug info alongside the error.
+func (e *GError) DebugString() string { return e.debugStr }
+
+// Structure returns the structure of the error message which may contain additional metadata.
+func (e *GError) Structure() *Structure { return e.structure }
+
+// Code returns the error code of the error message.
+func (e *GError) Code() ErrorCode { return e.code }
+
+// NewGError wraps the given error inside a GError (to be used with message constructors).
+func NewGError(code ErrorCode, err error) *GError {
+	return &GError{
+		errMsg: err.Error(),
+		code:   code,
+	}
+}

gst/gst_object.go

@@ -66,19 +66,16 @@ func (o *Object) Interfaces() []string {
 // set in this object, or their defaults.
 //
 // Unref after usage.
-func (o *Object) ListProperties() []*ParamSpec {
+func (o *Object) ListProperties() []*glib.ParamSpec {
 	var size C.guint
 	props := C.g_object_class_list_properties((*C.GObjectClass)(o.Class()), &size)
 	if props == nil {
 		return nil
 	}
 	defer C.g_free((C.gpointer)(props))
-	out := make([]*ParamSpec, 0)
+	out := make([]*glib.ParamSpec, 0)
 	for _, prop := range (*[1 << 30]*C.GParamSpec)(unsafe.Pointer(props))[:size:size] {
-		C.g_param_spec_sink(prop) // steal the ref on the property
+		out = append(out, glib.ToParamSpec(unsafe.Pointer(prop)))
-		out = append(out, &ParamSpec{
-			paramSpec: prop,
-		})
 	}
 	return out
 }

gst/gst_param_flags.go

@@ -0,0 +1,12 @@
+package gst
+
+// #include "gst.go.h"
+import "C"
+
+// Additional GStreamer ParamSpec flags
+const (
+	ParameterControllable   = C.GST_PARAM_CONTROLLABLE
+	ParameterMutablePlaying = C.GST_PARAM_MUTABLE_PLAYING
+	ParameterMutablePaused  = C.GST_PARAM_MUTABLE_PAUSED
+	ParameterMutableReady   = C.GST_PARAM_MUTABLE_READY
+)

gst/gst_uri_handler.go

@@ -2,6 +2,21 @@ package gst
 
 /*
 #include "gst.go.h"
+
+extern GstURIType              goURIHdlrGetURIType        (GType type);
+extern const gchar * const *   goURIHdlrGetProtocols      (GType type);
+extern gchar *                 goURIHdlrGetURI            (GstURIHandler * handler);
+extern gboolean                goURIHdlrSetURI            (GstURIHandler * handler,
+                                                           const gchar   * uri,
+														   GError       ** error);
+
+void uriHandlerInit (gpointer iface, gpointer iface_data)
+{
+	((GstURIHandlerInterface*)iface)->get_type = goURIHdlrGetURIType;
+	((GstURIHandlerInterface*)iface)->get_protocols = goURIHdlrGetProtocols;
+	((GstURIHandlerInterface*)iface)->get_uri = goURIHdlrGetURI;
+	((GstURIHandlerInterface*)iface)->set_uri = goURIHdlrSetURI;
+}
 */
 import "C"
 import (
@@ -14,7 +29,20 @@ import (
 // InterfaceURIHandler represents the GstURIHandler interface GType. Use this when querying bins
 // for elements that implement a URIHandler, or when signaling that a GoElement provides this
 // interface.
-var InterfaceURIHandler = glib.Type(C.GST_TYPE_URI_HANDLER)
+var InterfaceURIHandler glib.Interface = &interfaceURIHandler{}
+
+type interfaceURIHandler struct {
+	glib.Interface
+}
+
+func (i *interfaceURIHandler) Type() glib.Type { 
+	return glib.Type(C.GST_TYPE_URI_HANDLER)
+}
+
+func (i *interfaceURIHandler) InitFunc(t *glib.TypeInstance) unsafe.Pointer {
+	globalURIHdlr = t.GoType.(URIHandler)
+	return unsafe.Pointer(C.uriHandlerInit)
+}
 
 // URIHandler represents an interface that elements can implement to provide URI handling
 // capabilities.

gst/gst_wrappers.go

@@ -30,8 +30,6 @@ func wrapDevice(obj *glib.Object) *Device                 { return &Device{wrapO
 func wrapElement(obj *glib.Object) *Element               { return &Element{wrapObject(obj)} }
 func wrapEvent(ev *C.GstEvent) *Event                     { return &Event{ptr: ev} }
 func wrapGhostPad(obj *glib.Object) *GhostPad             { return &GhostPad{wrapProxyPad(obj)} }
-func wrapMainContext(ctx *C.GMainContext) *MainContext    { return &MainContext{ptr: ctx} }
-func wrapMainLoop(loop *C.GMainLoop) *MainLoop            { return &MainLoop{ptr: loop} }
 func wrapMapInfo(mapInfo *C.GstMapInfo) *MapInfo          { return &MapInfo{ptr: mapInfo} }
 func wrapMemory(mem *C.GstMemory) *Memory                 { return &Memory{ptr: mem} }
 func wrapMessage(msg *C.GstMessage) *Message              { return &Message{msg: msg} }
@@ -72,10 +70,6 @@ func wrapAllocationParams(obj *C.GstAllocationParams) *AllocationParams {
 	return &AllocationParams{ptr: obj}
 }
 
-func wrapElementClass(klass C.gpointer) *ElementClass {
-	return &ElementClass{&ObjectClass{ptr: C.toGObjectClass(unsafe.Pointer(klass))}}
-}
-
 // Marshallers
 
 func uintptrToGVal(p uintptr) *C.GValue { return (*C.GValue)(C.toGValue(C.guintptr(p))) }

gst/gstauto/bufio.go

@@ -1,101 +0,0 @@
-package gstauto
-
-import (
-	"bufio"
-	"io"
-	"os"
-)
-
-// Blank assertions to ensure interfaces are implemented.
-var _ io.ReadCloser = &readCloser{}
-var _ io.WriteCloser = &writeCloser{}
-var _ io.ReadWriteCloser = &readWriteCloser{}
-
-// readCloser is a struct that provides a read buffer that can also be written to
-// internally.
-type readCloser struct {
-	rReader, rWriter *os.File
-	rBuf             *bufio.Reader
-}
-
-// newReadCloser returns a new readCloser.
-func newReadCloser() (*readCloser, error) {
-	r, w, err := os.Pipe()
-	if err != nil {
-		return nil, err
-	}
-	return &readCloser{
-		rReader: r,
-		rWriter: w,
-		rBuf:    bufio.NewReader(r),
-	}, nil
-}
-
-// Read implements a Reader for objects embdedding this struct.
-func (r *readCloser) Read(p []byte) (int, error) { return r.rBuf.Read(p) }
-
-// Close implements a Closer for objects embedding this struct.
-func (r *readCloser) Close() error {
-	if err := r.rWriter.Close(); err != nil {
-		return err
-	}
-	return r.rReader.Close()
-}
-
-// writeCloser is a struct that provides a read buffer that can also be
-// read from internally.
-type writeCloser struct {
-	wReader, wWriter *os.File
-	wBuf             *bufio.Writer
-}
-
-// newWriteCloser returns a new writeCloser.
-func newWriteCloser() (*writeCloser, error) {
-	r, w, err := os.Pipe()
-	if err != nil {
-		return nil, err
-	}
-	return &writeCloser{
-		wReader: r,
-		wWriter: w,
-		wBuf:    bufio.NewWriter(w),
-	}, nil
-}
-
-// Write implements a Writer for objects embedding this struct.
-func (w *writeCloser) Write(p []byte) (int, error) { return w.wBuf.Write(p) }
-
-// Close implements a Closer for objects embedding this struct.
-func (w *writeCloser) Close() error {
-	if err := w.wWriter.Close(); err != nil {
-		return err
-	}
-	return w.wReader.Close()
-}
-
-// readWriteCloser is a struct that provides both read and write buffers.
-type readWriteCloser struct {
-	*readCloser
-	*writeCloser
-}
-
-// newReadWriteCloser returns a new readWriteCloser.
-func newReadWriteCloser() (*readWriteCloser, error) {
-	rCloser, err := newReadCloser()
-	if err != nil {
-		return nil, err
-	}
-	wCloser, err := newWriteCloser()
-	if err != nil {
-		return nil, err
-	}
-	return &readWriteCloser{readCloser: rCloser, writeCloser: wCloser}, nil
-}
-
-// Close implements a Closer for objects embedding this struct.
-func (rw *readWriteCloser) Close() error {
-	if err := rw.writeCloser.Close(); err != nil {
-		return err
-	}
-	return rw.readCloser.Close()
-}

gst/gstauto/doc.go

@@ -1,4 +0,0 @@
-// Package gstauto contains helper methods and objects for building pipelines that
-// satisfy most use cases. It provides an abstraction over the lower-level building
-// blocks provided in the gst package.
-package gstauto

gst/gstauto/pipeline_config.go

@@ -1,132 +0,0 @@
-package gstauto
-
-import (
-	"errors"
-
-	"github.com/tinyzimmer/go-gst/gst"
-)
-
-// PipelineElement represents an `GstElement` in a `GstPipeline` when building a Pipeline with `NewPipelineFromConfig`.
-// The Name should coorespond to a valid gstreamer plugin name. The data are additional
-// fields to set on the element. If SinkCaps is non-nil, they are applied to the sink of this
-// element.
-type PipelineElement struct {
-	Name     string
-	SinkCaps *gst.Caps
-	Data     map[string]interface{}
-}
-
-// GetName returns the name to use when creating Elements from this configuration.
-func (p *PipelineElement) GetName() string { return p.Name }
-
-// PipelineConfig represents a list of elements and their configurations
-// to be used with NewPipelineFromConfig.
-type PipelineConfig struct {
-	Elements []*PipelineElement
-}
-
-// GetElementByName returns the Element configuration for the given name.
-func (p *PipelineConfig) GetElementByName(name string) *PipelineElement {
-	for _, elem := range p.Elements {
-		if name == elem.GetName() {
-			return elem
-		}
-	}
-	return nil
-}
-
-// ElementNames returns a string slice of the names of all the plugins.
-func (p *PipelineConfig) ElementNames() []string {
-	names := make([]string, 0)
-	for _, elem := range p.Elements {
-		names = append(names, elem.GetName())
-	}
-	return names
-}
-
-// PushPluginToTop pushes a plugin to the top of the list of elements.
-func (p *PipelineConfig) PushPluginToTop(elem *PipelineElement) {
-	newSlc := []*PipelineElement{elem}
-	newSlc = append(newSlc, p.Elements...)
-	p.Elements = newSlc
-}
-
-// Apply applies this configuration to the given Pipeline.
-func (p *PipelineConfig) Apply(pipeline *gst.Pipeline) error {
-	// build all the elements
-	elementNames := p.ElementNames()
-	elements, err := gst.NewElementMany(elementNames...)
-	if err != nil {
-		return err
-	}
-	// iterate the element names and add them to the pipeline
-	for idx, name := range elementNames {
-		// get the current config and element
-		currentCfg := p.GetElementByName(name)
-		currentElem := elements[idx]
-
-		// Iterate any data with the plugin and set it on the element
-		for key, value := range currentCfg.Data {
-			if err := currentElem.Set(key, value); err != nil {
-				return err
-			}
-		}
-
-		// Add the element to the pipeline
-		if err := pipeline.Add(currentElem); err != nil {
-			return err
-		}
-
-		// If this is the first element continue
-		if idx == 0 {
-			continue
-		}
-
-		// get the last element in the chain
-		lastElemName := elementNames[idx-1]
-		lastElem := elements[idx-1]
-		lastCfg := p.GetElementByName(lastElemName)
-
-		if lastCfg == nil {
-			// this would never happen unless someone is messing with memory,
-			// but safety from panic
-			continue
-		}
-
-		// If there are sink caps on the last element, do a filtered link to this one and continue
-		if lastCfg.SinkCaps != nil {
-			if err := lastElem.LinkFiltered(currentElem, lastCfg.SinkCaps); err != nil {
-				return err
-			}
-			continue
-		}
-
-		// link the last element to this element
-		if err := lastElem.Link(currentElem); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-// NewPipelineFromConfig builds a new pipeline from the given PipelineConfig. The plugins provided
-// in the configuration will be linked in the order they are given.
-func NewPipelineFromConfig(cfg *PipelineConfig) (*gst.Pipeline, error) {
-	if cfg.Elements == nil {
-		return nil, errors.New("Element cannot be empty in the configuration")
-	}
-
-	// create a new empty pipeline instance
-	pipeline, err := gst.NewPipeline("")
-	if err != nil {
-		return nil, err
-	}
-
-	if err = cfg.Apply(pipeline); err != nil {
-		runOrPrintErr(pipeline.Destroy)
-		return nil, err
-	}
-
-	return pipeline, nil
-}

gst/gstauto/pipeline_interfaces.go

@@ -1,36 +0,0 @@
-package gstauto
-
-import (
-	"io"
-
-	"github.com/tinyzimmer/go-gst/gst"
-)
-
-// Pipeliner is a the base interface for structs extending the functionality of
-// the Pipeline object. It provides a single method which returns the underlying
-// Pipeline object.
-type Pipeliner interface {
-	io.Closer
-	// Pipeline should return the underlying pipeline
-	Pipeline() *gst.Pipeline
-	// Start should start the underlying pipeline.
-	Start() error
-}
-
-// ReadPipeliner is a Pipeliner that also implements a ReadCloser.
-type ReadPipeliner interface {
-	Pipeliner
-	io.Reader
-}
-
-// WritePipeliner is a Pipeliner that also implements a WriteCloser.
-type WritePipeliner interface {
-	Pipeliner
-	io.Writer
-}
-
-// ReadWritePipeliner is a Pipeliner that also implements a ReadWriteCloser.
-type ReadWritePipeliner interface {
-	Pipeliner
-	io.ReadWriter
-}

gst/gstauto/pipeline_reader.go

@@ -1,76 +0,0 @@
-package gstauto
-
-import (
-	"github.com/tinyzimmer/go-gst/gst"
-)
-
-// Empty assignment to ensure PipelineReader satisfies the ReadPipeliner interface.
-var _ ReadPipeliner = &PipelineReader{}
-
-// PipelineReader is the base struct to be used to implement ReadPipeliners.
-type PipelineReader struct {
-	*readCloser
-	pipeline *gst.Pipeline
-}
-
-// NewPipelineReader returns a new PipelineReader with an empty pipeline. Use an empty name
-// to have gstreamer auto-generate one. This method is intended for use in the construction
-// of other interfaces.
-func NewPipelineReader(name string) (*PipelineReader, error) {
-	pipeline, err := gst.NewPipeline(name)
-	if err != nil {
-		return nil, err
-	}
-	rCloser, err := newReadCloser()
-	if err != nil {
-		runOrPrintErr(pipeline.Destroy)
-		return nil, err
-	}
-	return &PipelineReader{
-		readCloser: rCloser,
-		pipeline:   pipeline,
-	}, nil
-}
-
-// NewPipelineReaderFromString returns a new PipelineReader with a pipeline populated
-// by the provided gstreamer launch string. If you are looking to build a simple
-// ReadPipeliner you probably want to use NewPipelineReaderSimpleFromString.
-func NewPipelineReaderFromString(launchStr string) (*PipelineReader, error) {
-	pipeline, err := gst.NewPipelineFromString(launchStr)
-	if err != nil {
-		return nil, err
-	}
-	rCloser, err := newReadCloser()
-	if err != nil {
-		runOrPrintErr(pipeline.Destroy)
-		return nil, err
-	}
-	return &PipelineReader{
-		readCloser: rCloser,
-		pipeline:   pipeline,
-	}, nil
-}
-
-// Pipeline returns the underlying Pipeline instance for this pipeliner. It implements the
-// Pipeliner interface.
-func (r *PipelineReader) Pipeline() *gst.Pipeline { return r.pipeline }
-
-// Start sets the underlying Pipeline state to PLAYING.
-func (r *PipelineReader) Start() error { return r.Pipeline().Start() }
-
-// ReaderFd returns the file descriptor that can be written to for the read-buffer. This value
-// is used when wanting to allow an underlying pipeline to write to the internal buffer (e.g. when using a fdsink).
-func (r *PipelineReader) ReaderFd() int { return int(r.readCloser.rWriter.Fd()) }
-
-// Close will stop and unref the underlying pipeline.
-func (r *PipelineReader) Close() error {
-	if err := r.Pipeline().Destroy(); err != nil {
-		return err
-	}
-	return r.readCloser.Close()
-}
-
-// CloseAsync will close the underlying pipeline asynchronously. It is the caller's
-// responsibility to call Unref on the pipeline and close buffers once it is no longer being used.
-// This can be accomplished via calling a regular Close (which is idempotent).
-func (r *PipelineReader) CloseAsync() error { return r.pipeline.SetState(gst.StateNull) }

gst/gstauto/pipeline_readwriter.go

@@ -1,82 +0,0 @@
-package gstauto
-
-import (
-	"github.com/tinyzimmer/go-gst/gst"
-)
-
-// Empty assignment to ensure PipelineReadWriter satisfies the ReadWritePipeliner interface.
-var _ ReadWritePipeliner = &PipelineReadWriter{}
-
-// PipelineReadWriter is the base struct to be used to implement ReadWritePipeliners.
-type PipelineReadWriter struct {
-	*readWriteCloser
-	pipeline *gst.Pipeline
-}
-
-// NewPipelineReadWriter returns a new PipelineReadWriter with an empty pipeline. Use an empty name
-// to have gstreamer auto-generate one. This method is intended for use in the construction
-// of other interfaces.
-func NewPipelineReadWriter(name string) (*PipelineReadWriter, error) {
-	pipeline, err := gst.NewPipeline(name)
-	if err != nil {
-		return nil, err
-	}
-	rwCloser, err := newReadWriteCloser()
-	if err != nil {
-		runOrPrintErr(pipeline.Destroy)
-		return nil, err
-	}
-	return &PipelineReadWriter{
-		readWriteCloser: rwCloser,
-		pipeline:        pipeline,
-	}, nil
-}
-
-// NewPipelineReadWriterFromString returns a new PipelineReadWriter with a pipeline populated
-// by the provided gstreamer launch string. If you are looking to build a simple
-// ReadWritePipeliner you probably want to use NewPipelineReadWriterSimpleFromString.
-func NewPipelineReadWriterFromString(launchStr string) (*PipelineReadWriter, error) {
-	pipeline, err := gst.NewPipelineFromString(launchStr)
-	if err != nil {
-		return nil, err
-	}
-	rwCloser, err := newReadWriteCloser()
-	if err != nil {
-		runOrPrintErr(pipeline.Destroy)
-		return nil, err
-	}
-	return &PipelineReadWriter{
-		readWriteCloser: rwCloser,
-		pipeline:        pipeline,
-	}, nil
-}
-
-// Pipeline returns the underlying Pipeline instance for this pipeliner. It implements the
-// Pipeliner interface.
-func (rw *PipelineReadWriter) Pipeline() *gst.Pipeline { return rw.pipeline }
-
-// Start sets the underlying Pipeline state to PLAYING.
-func (rw *PipelineReadWriter) Start() error { return rw.Pipeline().Start() }
-
-// ReaderFd returns the file descriptor that can be written to for the read-buffer. This value
-// is used when wanting to allow an underlying pipeline to write to the internal buffer
-// (e.g. when using a fdsink).
-func (rw *PipelineReadWriter) ReaderFd() int { return int(rw.readWriteCloser.readCloser.rWriter.Fd()) }
-
-// WriterFd returns the file descriptor that can be used to read from the write-buffer. This value
-// is used when wanting to allow an underlying pipeline the ability to read data written to the buffer
-// (e.g. when using a fdsrc).
-func (rw *PipelineReadWriter) WriterFd() int { return int(rw.readWriteCloser.writeCloser.wReader.Fd()) }
-
-// Close will stop and unref the underlying pipeline and read/write buffers.
-func (rw *PipelineReadWriter) Close() error {
-	if err := rw.Pipeline().Destroy(); err != nil {
-		return err
-	}
-	return rw.readWriteCloser.Close()
-}
-
-// CloseAsync will close the underlying pipeline asynchronously. It is the caller's
-// responsibility to call Unref on the pipeline and close buffers once it is no longer being used.
-// This can be accomplished via calling a regular Close (which is idempotent).
-func (rw *PipelineReadWriter) CloseAsync() error { return rw.pipeline.SetState(gst.StateNull) }

gst/gstauto/pipeline_simple.go

@@ -1,59 +0,0 @@
-package gstauto
-
-import (
-	"github.com/tinyzimmer/go-gst/gst"
-)
-
-// Blank assignment to make sure PipelinerSimple satisfies the Pipeliner interface.
-var _ Pipeliner = &PipelinerSimple{}
-
-// PipelinerSimple is a simple struct that implements the Pipeliner interface.
-// It doesn't provide any additional read/write capabilities. Its primary intention
-// is for pipelines where the caller does not wish to personally read or write from
-// either end of the buffer.
-type PipelinerSimple struct {
-	pipeline *gst.Pipeline
-}
-
-// Pipeline implements the Pipeliner interface.
-func (s *PipelinerSimple) Pipeline() *gst.Pipeline { return s.pipeline }
-
-// Start sets the underlying Pipeline state to PLAYING.
-func (s *PipelinerSimple) Start() error { return s.Pipeline().Start() }
-
-// Close stops and unrefs the underlying pipeline.
-func (s *PipelinerSimple) Close() error { return s.Pipeline().Destroy() }
-
-// NewPipelinerSimple returns a new empty PipelinerSimple. Pass an empty string
-// for name to use an auto-generated one.
-func NewPipelinerSimple(name string) (*PipelinerSimple, error) {
-	pipeline, err := gst.NewPipeline(name)
-	if err != nil {
-		return nil, err
-	}
-	return &PipelinerSimple{pipeline: pipeline}, nil
-}
-
-// NewPipelinerSimpleFromString returns a new PipelinerSimpler from the given
-// launch string.
-func NewPipelinerSimpleFromString(launchStr string) (*PipelinerSimple, error) {
-	pipeline, err := gst.NewPipelineFromString(launchStr)
-	if err != nil {
-		return nil, err
-	}
-	return &PipelinerSimple{pipeline: pipeline}, nil
-}
-
-// NewPipelinerSimpleFromConfig returns a new PipelinerSimple from the given
-// PipelineConfig.
-func NewPipelinerSimpleFromConfig(cfg *PipelineConfig) (*PipelinerSimple, error) {
-	pipeline, err := gst.NewPipeline("")
-	if err != nil {
-		return nil, err
-	}
-	if err := cfg.Apply(pipeline); err != nil {
-		runOrPrintErr(pipeline.Destroy)
-		return nil, err
-	}
-	return &PipelinerSimple{pipeline: pipeline}, nil
-}

gst/gstauto/pipeline_simple_reader.go

@@ -1,81 +0,0 @@
-package gstauto
-
-import (
-	"errors"
-	"fmt"
-	"strings"
-
-	"github.com/tinyzimmer/go-gst/gst"
-)
-
-// PipelineReaderSimple implements a ReadPipeliner that configures gstreamer
-// to write directly to the internal read-buffer via an fdsink.
-type PipelineReaderSimple struct {
-	*PipelineReader
-}
-
-// NewPipelineReaderSimpleFromString returns a new PipelineReaderSimple populated from
-// the given launch string. An fdsink is added to the end of the launch string and tied
-// to the read buffer.
-func NewPipelineReaderSimpleFromString(launchStr string) (*PipelineReaderSimple, error) {
-	pipelineReader, err := NewPipelineReaderFromString(addFdSinkToStr(launchStr))
-	if err != nil {
-		return nil, err
-	}
-
-	defer func() {
-		if err != nil {
-			runOrPrintErr(pipelineReader.Pipeline().Destroy)
-		}
-	}()
-
-	// Retrieve the sinks in the pipeline, most of the time there is just one
-	var sinks []*gst.Element
-	sinks, err = pipelineReader.Pipeline().GetSinkElements()
-	if err != nil {
-		return nil, err
-	}
-
-	// Fetch the fdsink and reconfigure it to point to the read buffer.
-	for _, sink := range sinks {
-		if strings.Contains(sink.Name(), "fdsink") {
-			if err = sink.Set("fd", pipelineReader.ReaderFd()); err != nil {
-				return nil, err
-			}
-		}
-	}
-
-	// Return the pipeline
-	return &PipelineReaderSimple{pipelineReader}, nil
-}
-
-// NewPipelineReaderSimpleFromConfig returns a new PipelineReaderSimple populated from
-// the given launch config. An fdsink is added to the end of the launch config and tied
-// to the read buffer.
-func NewPipelineReaderSimpleFromConfig(cfg *PipelineConfig) (*PipelineReaderSimple, error) {
-	if cfg.Elements == nil {
-		return nil, errors.New("Elements cannot be nil in the config")
-	}
-	pipelineReader, err := NewPipelineReader("")
-	if err != nil {
-		return nil, err
-	}
-	cfg.Elements = append(cfg.Elements, &PipelineElement{
-		Name: "fdsink",
-		Data: map[string]interface{}{
-			"fd": pipelineReader.ReaderFd(),
-		},
-	})
-	if err := cfg.Apply(pipelineReader.Pipeline()); err != nil {
-		runOrPrintErr(pipelineReader.Pipeline().Destroy)
-		return nil, err
-	}
-	return &PipelineReaderSimple{pipelineReader}, nil
-}
-
-func addFdSinkToStr(pstr string) string {
-	if pstr == "" {
-		return "fdsink"
-	}
-	return fmt.Sprintf("%s ! fdsink", pstr)
-}

gst/gstauto/pipeline_simple_readwriter.go

@@ -1,96 +0,0 @@
-package gstauto
-
-import (
-	"errors"
-	"strings"
-
-	"github.com/tinyzimmer/go-gst/gst"
-)
-
-// PipelineReadWriterSimple implements a ReadWritePipeliner that configures gstreamer
-// to read from the internal write-buffer via an fdsrc and write to the internal read-buffer
-// via an fdsink.
-type PipelineReadWriterSimple struct {
-	*PipelineReadWriter
-}
-
-// NewPipelineReadWriterSimpleFromString returns a new PipelineReadWriterSimple from
-// the given launch string. An fdsrc listening on the write buffer and an fdsink to the read buffer
-// are formatted into the provided string.
-func NewPipelineReadWriterSimpleFromString(launchStr string) (*PipelineReadWriterSimple, error) {
-	pipelineReadWriter, err := NewPipelineReadWriterFromString(addFdSrcToStr(addFdSinkToStr(launchStr)))
-	if err != nil {
-		return nil, err
-	}
-
-	defer func() {
-		if err != nil {
-			runOrPrintErr(pipelineReadWriter.Pipeline().Destroy)
-		}
-	}()
-
-	// Retrieve the sinks in the pipeline, most of the time there is just one
-	var sinks []*gst.Element
-	sinks, err = pipelineReadWriter.Pipeline().GetSinkElements()
-	if err != nil {
-		return nil, err
-	}
-
-	// Fetch the fdsink and reconfigure it to point to the read buffer.
-	for _, sink := range sinks {
-		if strings.Contains(sink.Name(), "fdsink") {
-			if err = sink.Set("fd", pipelineReadWriter.ReaderFd()); err != nil {
-				return nil, err
-			}
-		}
-	}
-
-	// Retrieve the sources in the pipeline, most of the time there is just one
-	var sources []*gst.Element
-	sources, err = pipelineReadWriter.Pipeline().GetSourceElements()
-	if err != nil {
-		return nil, err
-	}
-
-	// Fetch the fdsrc and reconfigure it to point to the write buffer.
-	for _, source := range sources {
-		if strings.Contains(source.Name(), "fdsrc") {
-			if err = source.Set("fd", pipelineReadWriter.WriterFd()); err != nil {
-				return nil, err
-			}
-		}
-	}
-
-	// Return the pipeline
-	return &PipelineReadWriterSimple{pipelineReadWriter}, nil
-}
-
-// NewPipelineReadWriterSimpleFromConfig returns a new PipelineReadWriterSimple populated from
-// the given launch config. An fdsrc is added to the start of the launch config and tied
-// to the write buffer, and an fdsink is added to the end tied to the read-buffer.
-func NewPipelineReadWriterSimpleFromConfig(cfg *PipelineConfig) (*PipelineReadWriterSimple, error) {
-	if cfg.Elements == nil {
-		return nil, errors.New("Elements cannot be nil in the config")
-	}
-	pipelineReadWriter, err := NewPipelineReadWriter("")
-	if err != nil {
-		return nil, err
-	}
-	cfg.PushPluginToTop(&PipelineElement{
-		Name: "fdsrc",
-		Data: map[string]interface{}{
-			"fd": pipelineReadWriter.WriterFd(),
-		},
-	})
-	cfg.Elements = append(cfg.Elements, &PipelineElement{
-		Name: "fdsink",
-		Data: map[string]interface{}{
-			"fd": pipelineReadWriter.ReaderFd(),
-		},
-	})
-	if err := cfg.Apply(pipelineReadWriter.Pipeline()); err != nil {
-		runOrPrintErr(pipelineReadWriter.Pipeline().Destroy)
-		return nil, err
-	}
-	return &PipelineReadWriterSimple{pipelineReadWriter}, nil
-}

gst/gstauto/pipeline_simple_writer.go

@@ -1,81 +0,0 @@
-package gstauto
-
-import (
-	"errors"
-	"fmt"
-	"strings"
-
-	"github.com/tinyzimmer/go-gst/gst"
-)
-
-// PipelineWriterSimple implements a WritePipeliner that configures gstreamer
-// to read directly from the internal write-buffer via a fdsrc.
-type PipelineWriterSimple struct {
-	*PipelineWriter
-}
-
-// NewPipelineWriterSimpleFromString returns a new PipelineWriterSimple populated from
-// the given launch string. An fdsrc is added to the beginning of the string and tied to
-// the write buffer.
-func NewPipelineWriterSimpleFromString(launchStr string) (*PipelineWriterSimple, error) {
-	pipelineWriter, err := NewPipelineWriterFromString(addFdSrcToStr(launchStr))
-	if err != nil {
-		return nil, err
-	}
-
-	defer func() {
-		if err != nil {
-			runOrPrintErr(pipelineWriter.Pipeline().Destroy)
-		}
-	}()
-
-	// Retrieve the sources in the pipeline, most of the time there is just one
-	var sources []*gst.Element
-	sources, err = pipelineWriter.Pipeline().GetSourceElements()
-	if err != nil {
-		return nil, err
-	}
-
-	// Fetch the fdsrc and reconfigure it to point to the write buffer.
-	for _, source := range sources {
-		if strings.Contains(source.Name(), "fdsrc") {
-			if err = source.Set("fd", pipelineWriter.WriterFd()); err != nil {
-				return nil, err
-			}
-		}
-	}
-
-	// Return the pipeline
-	return &PipelineWriterSimple{pipelineWriter}, nil
-}
-
-// NewPipelineWriterSimpleFromConfig returns a new PipelineWriterSimple populated from
-// the given launch config. An fdsrc is added to the start of the launch config and tied
-// to the write buffer.
-func NewPipelineWriterSimpleFromConfig(cfg *PipelineConfig) (*PipelineWriterSimple, error) {
-	if cfg.Elements == nil {
-		return nil, errors.New("Elements cannot be nil in the config")
-	}
-	pipelineWriter, err := NewPipelineWriter("")
-	if err != nil {
-		return nil, err
-	}
-	cfg.PushPluginToTop(&PipelineElement{
-		Name: "fdsrc",
-		Data: map[string]interface{}{
-			"fd": pipelineWriter.WriterFd(),
-		},
-	})
-	if err := cfg.Apply(pipelineWriter.Pipeline()); err != nil {
-		runOrPrintErr(pipelineWriter.Pipeline().Destroy)
-		return nil, err
-	}
-	return &PipelineWriterSimple{pipelineWriter}, nil
-}
-
-func addFdSrcToStr(pstr string) string {
-	if pstr == "" {
-		return "fdsrc"
-	}
-	return fmt.Sprintf("fdsrc ! %s", pstr)
-}

gst/gstauto/pipeline_writer.go

@@ -1,77 +0,0 @@
-package gstauto
-
-import (
-	"github.com/tinyzimmer/go-gst/gst"
-)
-
-// Empty assignment to ensure PipelineWriter satisfies the WritePipeliner interface.
-var _ WritePipeliner = &PipelineWriter{}
-
-// PipelineWriter is the base struct to be used to implement WritePipeliners.
-type PipelineWriter struct {
-	*writeCloser
-	pipeline *gst.Pipeline
-}
-
-// NewPipelineWriter returns a new PipelineWriter with an empty pipeline. Use an empty name
-// to have gstreamer auto-generate one. This method is intended for use in the construction
-// of other interfaces.
-func NewPipelineWriter(name string) (*PipelineWriter, error) {
-	pipeline, err := gst.NewPipeline(name)
-	if err != nil {
-		return nil, err
-	}
-	wCloser, err := newWriteCloser()
-	if err != nil {
-		runOrPrintErr(pipeline.Destroy)
-		return nil, err
-	}
-	return &PipelineWriter{
-		writeCloser: wCloser,
-		pipeline:    pipeline,
-	}, nil
-}
-
-// NewPipelineWriterFromString returns a new PipelineWriter with a pipeline populated
-// by the provided gstreamer launch string. If you are looking to build a simple
-// WritePipeliner you probably want to use NewPipelineWriterSimpleFromString.
-func NewPipelineWriterFromString(launchStr string) (*PipelineWriter, error) {
-	pipeline, err := gst.NewPipelineFromString(launchStr)
-	if err != nil {
-		return nil, err
-	}
-	wCloser, err := newWriteCloser()
-	if err != nil {
-		runOrPrintErr(pipeline.Destroy)
-		return nil, err
-	}
-	return &PipelineWriter{
-		writeCloser: wCloser,
-		pipeline:    pipeline,
-	}, nil
-}
-
-// Pipeline returns the underlying Pipeline instance for this pipeliner. It implements the
-// Pipeliner interface.
-func (w *PipelineWriter) Pipeline() *gst.Pipeline { return w.pipeline }
-
-// Start sets the underlying Pipeline state to PLAYING.
-func (w *PipelineWriter) Start() error { return w.Pipeline().Start() }
-
-// WriterFd returns the file descriptor that can be used to read from the write-buffer. This value
-// is used when wanting to allow an underlying pipeline the ability to read data written to
-// the buffer (e.g. when using a fdsrc).
-func (w *PipelineWriter) WriterFd() int { return int(w.writeCloser.wReader.Fd()) }
-
-// Close will stop and unref the underlying pipeline.
-func (w *PipelineWriter) Close() error {
-	if err := w.Pipeline().Destroy(); err != nil {
-		return err
-	}
-	return w.writeCloser.Close()
-}
-
-// CloseAsync will close the underlying pipeline asynchronously. It is the caller's
-// responsibility to call Unref on the pipeline and close buffers once it is no longer being used.
-// This can be accomplished via calling a regular Close (which is idempotent).
-func (w *PipelineWriter) CloseAsync() error { return w.pipeline.SetState(gst.StateNull) }

gst/gstauto/util.go

@@ -1,9 +0,0 @@
-package gstauto
-
-import "github.com/tinyzimmer/go-gst/gst"
-
-func runOrPrintErr(f func() error) {
-	if err := f(); err != nil {
-		gst.CAT.Log(gst.LevelError, err.Error())
-	}
-}

gst/interfaces.go

@@ -1,110 +0,0 @@
-package gst
-
-/*
-#include "gst.go.h"
-
-extern void   goClassInit     (gpointer g_class, gpointer class_data);
-extern void   goInstanceInit  (GTypeInstance * instance, gpointer g_class);
-
-void  cgoClassInit     (gpointer g_class, gpointer class_data)       { goClassInit(g_class, class_data); }
-void  cgoInstanceInit  (GTypeInstance * instance, gpointer g_class)  { goInstanceInit(instance, g_class); }
-*/
-import "C"
-
-import (
-	"reflect"
-	"unsafe"
-
-	gopointer "github.com/mattn/go-pointer"
-	"github.com/tinyzimmer/go-glib/glib"
-)
-
-// GoElement is an interface to be implemented by GStreamer elements built using the
-// go bindings. Select methods from other interfaces can be overridden and declared via
-// the Extendable property provided at plugin registration.
-//
-// Typically, at the very least, an element will want to implement methods from the Element
-// Extendable (and by extension the GoObject).
-type GoElement interface{ GoObjectSubclass }
-
-// Extendable is an interface implemented by extendable classes. It provides
-// the methods necessary to setup the vmethods on the object it represents.
-type Extendable interface {
-	// Type should return the type of the extended object
-	Type() glib.Type
-	// ClasSize should return the size of the extended class
-	ClassSize() int64
-	// InstanceSize should return the size of the object itself
-	InstanceSize() int64
-	// InitClass should take a pointer to a new subclass and a GoElement and override any
-	// methods implemented by the GoElement in the subclass.
-	InitClass(unsafe.Pointer, GoElement)
-}
-
-// GoObjectSubclass is an interface that abstracts on the GObjectClass. It should be implemented
-// by plugins using the go bindings.
-type GoObjectSubclass interface {
-	// New should return a new instantiated GoElement ready to be used.
-	New() GoElement
-	// TypeInit is called after the GType is registered and right before ClassInit. It is when the
-	// element should add any interfaces it plans to implement.
-	TypeInit(*TypeInstance)
-	// ClassInit is called on the element after registering it with GStreamer. This is when the element
-	// should install its properties and pad templates.
-	ClassInit(*ElementClass)
-}
-
-// FromObjectUnsafePrivate will return the GoElement addressed in the private data of the given GObject.
-func FromObjectUnsafePrivate(obj unsafe.Pointer) GoElement {
-	ptr := gopointer.Restore(privateFromObj(obj))
-	return ptr.(GoElement)
-}
-
-type classData struct {
-	elem GoElement
-	ext  Extendable
-}
-
-func gtypeForGoElement(name string, elem GoElement, extendable Extendable) C.GType {
-	registerMutex.Lock()
-	defer registerMutex.Unlock()
-	if registered, ok := registeredTypes[reflect.TypeOf(elem).String()]; ok {
-		return registered
-	}
-	classData := &classData{
-		elem: elem,
-		ext:  extendable,
-	}
-	ptr := gopointer.Save(classData)
-
-	typeInfo := (*C.GTypeInfo)(C.malloc(C.sizeof_GTypeInfo))
-	defer C.free(unsafe.Pointer(typeInfo))
-
-	typeInfo.base_init = nil
-	typeInfo.base_finalize = nil
-	typeInfo.class_size = C.gushort(extendable.ClassSize())
-	typeInfo.class_finalize = nil
-	typeInfo.class_init = C.GClassInitFunc(C.cgoClassInit)
-	typeInfo.class_data = (C.gconstpointer)(ptr)
-	typeInfo.instance_size = C.gushort(extendable.InstanceSize())
-	typeInfo.n_preallocs = 0
-	typeInfo.instance_init = C.GInstanceInitFunc(C.cgoInstanceInit)
-	typeInfo.value_table = nil
-
-	gtype := C.g_type_register_static(
-		C.GType(extendable.Type()),
-		(*C.gchar)(C.CString(name)),
-		typeInfo,
-		C.GTypeFlags(0),
-	)
-	elem.TypeInit(&TypeInstance{gtype: gtype, gotype: elem})
-	registeredTypes[reflect.TypeOf(elem).String()] = gtype
-	return gtype
-}
-
-// privateFromObj returns the actual value of the address we stored in the object's private data.
-func privateFromObj(obj unsafe.Pointer) unsafe.Pointer {
-	private := C.g_type_instance_get_private((*C.GTypeInstance)(obj), C.objectGType((*C.GObject)(obj)))
-	privAddr := (*unsafe.Pointer)(unsafe.Pointer(private))
-	return *privAddr
-}

gst/register.go

@@ -1,11 +1,3 @@
 package gst
 
-// #include "gst.go.h"
-import "C"
-import "sync"
-
-var registerMutex sync.RWMutex
-
-var registeredTypes = make(map[string]C.GType)
-var registeredClasses = make(map[C.gpointer]GoElement)
 var globalURIHdlr URIHandler