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major rework of reference handling

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This commit is contained in:
Avi Zimmerman
2021-01-19 00:18:30 +02:00
parent 63a53be42a
commit 1f7d60b390
79 changed files with 1239 additions and 800 deletions
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73
gst/gst_toc.go
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@@ -2,16 +2,32 @@ package gst
// #include "gst.go.h"
import "C"
import "unsafe"
import (
"runtime"
"unsafe"
)
// TOC is a go representation of a GstToc.
type TOC struct {
ptr *C.GstToc
}
// FromGstTOCUnsafe wraps the pointer to the given C GstToc with the go type.
// FromGstTOCUnsafeNone wraps the pointer to the given C GstToc with the go type.
// This is meant for internal usage and is exported for visibility to other packages.
func FromGstTOCUnsafe(toc unsafe.Pointer) *TOC { return wrapTOC((*C.GstToc)(toc)) }
func FromGstTOCUnsafeNone(toc unsafe.Pointer) *TOC {
gotoc := wrapTOC((*C.GstToc)(toc))
gotoc.Ref()
runtime.SetFinalizer(gotoc, (*TOC).Unref)
return gotoc
}
// FromGstTOCUnsafeFull wraps the pointer to the given C GstToc with the go type.
// This is meant for internal usage and is exported for visibility to other packages.
func FromGstTOCUnsafeFull(toc unsafe.Pointer) *TOC {
gotoc := wrapTOC((*C.GstToc)(toc))
runtime.SetFinalizer(gotoc, (*TOC).Unref)
return gotoc
}
// NewTOC returns a new TOC with the given scope.
func NewTOC(scope TOCScope) *TOC {
@@ -19,7 +35,7 @@ func NewTOC(scope TOCScope) *TOC {
if toc == nil {
return nil
}
return wrapTOC(toc)
return FromGstTOCUnsafeFull(unsafe.Pointer(toc))
}
// Instance returns the underlying GstToc instance.
@@ -38,12 +54,12 @@ func (t *TOC) Unref() {
// MakeWritable returns a writable copy of the TOC if it isn't already,
func (t *TOC) MakeWritable() *TOC {
return wrapTOC(C.makeTocWritable(t.Instance()))
return FromGstTOCUnsafeFull(unsafe.Pointer(C.makeTocWritable(t.Instance())))
}
// Copy creates a copy of the TOC.
func (t *TOC) Copy() *TOC {
return wrapTOC(C.copyToc(t.Instance()))
return FromGstTOCUnsafeFull(unsafe.Pointer(C.copyToc(t.Instance())))
}
// AppendEntry appends the given TOCEntry to this TOC.
@@ -64,7 +80,7 @@ func (t *TOC) FindEntry(uid string) *TOCEntry {
if entry == nil {
return nil
}
return wrapTOCEntry(entry)
return FromGstTocEntryUnsafeNone(unsafe.Pointer(entry))
}
// GetEntries returns a list of all TOCEntries.
@@ -79,7 +95,7 @@ func (t *TOC) GetEntries() []*TOCEntry {
if entry == nil {
break
}
out = append(out, wrapTOCEntry((*C.GstTocEntry)(unsafe.Pointer(entry))))
out = append(out, FromGstTocEntryUnsafeNone(unsafe.Pointer(entry)))
}
return out
}
@@ -95,7 +111,7 @@ func (t *TOC) GetTags() *TagList {
if tagList == nil {
return nil
}
return wrapTagList(tagList)
return FromGstTagListUnsafeNone(unsafe.Pointer(tagList))
}
// MergeTags merges the given tags into this TOC's TagList.
@@ -105,7 +121,7 @@ func (t *TOC) MergeTags(tagList *TagList, mergeMode TagMergeMode) {
// SetTags sets tags for the entire TOC.
func (t *TOC) SetTags(tagList *TagList) {
C.gst_toc_set_tags(t.Instance(), tagList.Instance())
C.gst_toc_set_tags(t.Instance(), tagList.Ref().Instance())
}
// TOCEntry is a go representation of a GstTocEntry,
@@ -113,6 +129,21 @@ type TOCEntry struct {
ptr *C.GstTocEntry
}
// FromGstTocEntryUnsafeNone wraps the given TOCEntry.
func FromGstTocEntryUnsafeNone(entry unsafe.Pointer) *TOCEntry {
t := wrapTOCEntry((*C.GstTocEntry)(entry))
t.Ref()
runtime.SetFinalizer(t, (*TOCEntry).Unref)
return t
}
// FromGstTocEntryUnsafeFull wraps the given TOCEntry.
func FromGstTocEntryUnsafeFull(entry unsafe.Pointer) *TOCEntry {
t := wrapTOCEntry((*C.GstTocEntry)(entry))
runtime.SetFinalizer(t, (*TOCEntry).Unref)
return t
}
// NewTOCEntry creates a new TOCEntry with the given UID and type.
func NewTOCEntry(entryType TOCEntryType, uid string) *TOCEntry {
cuid := C.CString(uid)
@@ -124,7 +155,7 @@ func NewTOCEntry(entryType TOCEntryType, uid string) *TOCEntry {
if entry == nil {
return nil
}
return wrapTOCEntry(entry)
return FromGstTocEntryUnsafeFull(unsafe.Pointer(entry))
}
// Instance returns the underlying GstTocEntry instance.
@@ -143,17 +174,17 @@ func (t *TOCEntry) Unref() {
// MakeWritable returns a writable copy of the TOCEntry if it is not already so.
func (t *TOCEntry) MakeWritable() *TOCEntry {
return wrapTOCEntry(C.makeTocEntryWritable(t.Instance()))
return FromGstTocEntryUnsafeFull(unsafe.Pointer(C.makeTocEntryWritable(t.Instance())))
}
// Copy creates a copy of the TOCEntry
func (t *TOCEntry) Copy() *TOCEntry {
return wrapTOCEntry(C.copyTocEntry(t.Instance()))
return FromGstTocEntryUnsafeFull(unsafe.Pointer(C.copyTocEntry(t.Instance())))
}
// AppendSubEntry appends the given entry as a subentry to this one.
func (t *TOCEntry) AppendSubEntry(subEntry *TOCEntry) {
C.gst_toc_entry_append_sub_entry(t.Instance(), subEntry.Instance())
C.gst_toc_entry_append_sub_entry(t.Instance(), subEntry.Ref().Instance())
}
// GetEntryType returns the type of this TOCEntry
@@ -180,7 +211,7 @@ func (t *TOCEntry) GetParent() *TOCEntry {
if parent == nil {
return nil
}
return wrapTOCEntry(parent)
return FromGstTocEntryUnsafeNone(unsafe.Pointer(parent))
}
// GetStartStopTimes gets the start and stop times for the TOCEntry if available.
@@ -202,7 +233,7 @@ func (t *TOCEntry) GetSubEntries() []*TOCEntry {
if entry == nil {
break
}
out = append(out, wrapTOCEntry((*C.GstTocEntry)(unsafe.Pointer(entry))))
out = append(out, FromGstTocEntryUnsafeNone(unsafe.Pointer(entry)))
}
return out
}
@@ -213,7 +244,7 @@ func (t *TOCEntry) GetTags() *TagList {
if tagList == nil {
return nil
}
return wrapTagList(tagList)
return FromGstTagListUnsafeNone(unsafe.Pointer(tagList))
}
// GetTOC returns the parent TOC of this entry.
@@ -222,7 +253,7 @@ func (t *TOCEntry) GetTOC() *TOC {
if toc == nil {
return nil
}
return wrapTOC(toc)
return FromGstTOCUnsafeNone(unsafe.Pointer(toc))
}
// GetUID returns the uid of this entry.
@@ -242,6 +273,10 @@ func (t *TOCEntry) IsSequence() bool {
// MergeTags merges the given tags with the given mode.
func (t *TOCEntry) MergeTags(tagList *TagList, mergeMode TagMergeMode) {
if tagList == nil {
C.gst_toc_entry_merge_tags(t.Instance(), nil, C.GstTagMergeMode(mergeMode))
return
}
C.gst_toc_entry_merge_tags(t.Instance(), tagList.Instance(), C.GstTagMergeMode(mergeMode))
}
@@ -257,5 +292,5 @@ func (t *TOCEntry) SetStartStopTimes(startTime, stopTime int64) {
// SetTags sets the tags on the TOC entry.
func (t *TOCEntry) SetTags(tagList *TagList) {
C.gst_toc_entry_set_tags(t.Instance(), tagList.Instance())
C.gst_toc_entry_set_tags(t.Instance(), tagList.Ref().Instance())
}