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2023-10-17 15:38:39 CST W42D2

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aggresss
2023-10-17 15:38:39 +08:00
parent 3189856a17
commit 762aa14362
39 changed files with 1481 additions and 309 deletions
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16
avutil_frame.go
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@@ -7,7 +7,7 @@ import "C"
import "unsafe"
// AvFrameSideDataType
type AvFrameSideDataType int32
type AvFrameSideDataType = C.enum_AVFrameSideDataType
const (
AV_FRAME_DATA_PANSCAN = AvFrameSideDataType(C.AV_FRAME_DATA_PANSCAN)
@@ -37,7 +37,7 @@ const (
)
// AvActiveFormatDescription
type AvActiveFormatDescription int32
type AvActiveFormatDescription = C.enum_AVActiveFormatDescription
const (
AV_AFD_SAME = AvActiveFormatDescription(C.AV_AFD_SAME)
@@ -127,6 +127,18 @@ func (frame *AvFrame) GetExtendedDataAddr() ***uint8 {
return (***uint8)(unsafe.Pointer(&frame.extended_data))
}
// Custom: GetExtendedDataIdx gets `AVFrame.extended_data` index value.
func (frame *AvFrame) GetExtendedDataIdx(idx int) *uint8 {
if frame.extended_data == nil {
return nil
}
return *(**uint8)(unsafe.Pointer(uintptr(unsafe.Pointer(frame.extended_data)) +
uintptr(unsafe.Sizeof(*frame.extended_data))*(uintptr(idx))))
// Another way.
// return unsafe.Slice((**uint8)(unsafe.Pointer(frame.extended_data)), idx+1)[idx]
}
// Custom: GetWidth gets `AVFrame.width` value.
func (frame *AvFrame) GetWidth() int32 {
return (int32)(frame.width)