feat: add public PipeWire and SPA wrappers

commit: 7d5e644e81678fb4a44bc02a6edd59ca0f24c703
author: brice · 6mo ago · 2026-04-09 06:20 UTC
parent: 67ff6c8
signature: GPG VerifiedCD88F9E564E0102646FB6077A1A07C7C7C3E349D · arch-gpg Verified for the committer email

11 files · +319 -2

M internal/capi/register.go +50 -2

@@ -1,11 +1,59 @@
1	1		package capi
2	2
3		-	import "github.com/bnema/purego-pipewire/internal/loader"
	3	+	import (
	4	+	"unsafe"
4	5
	6	+	"github.com/bnema/purego-pipewire/internal/loader"
	7	+	portout "github.com/bnema/purego-pipewire/internal/ports/out"
	8	+	)
	9	+
	10	+	// defaultImpl implements portout.CAPI by wrapping the registered functions.
	11	+	type defaultImpl struct{}
	12	+
	13	+	func (d defaultImpl) PWInit(argc int32, argv **byte) {
	14	+	pw_init(argc, argv)
	15	+	}
	16	+
	17	+	func (d defaultImpl) PWDeinit() {
	18	+	pw_deinit()
	19	+	}
	20	+
	21	+	func (d defaultImpl) PWMainLoopNew(props unsafe.Pointer) unsafe.Pointer {
	22	+	return pw_main_loop_new(props)
	23	+	}
	24	+
	25	+	func (d defaultImpl) PWMainLoopDestroy(loop unsafe.Pointer) {
	26	+	pw_main_loop_destroy(loop)
	27	+	}
	28	+
	29	+	func (d defaultImpl) PWMainLoopRun(loop unsafe.Pointer) int32 {
	30	+	return pw_main_loop_run(loop)
	31	+	}
	32	+
	33	+	var (
	34	+	defaultAPI portout.CAPI
	35	+	registered bool
	36	+	)
	37	+
	38	+	// Register loads the PipeWire libraries and registers all function bindings.
5	39		func Register() error {
	40	+	if registered {
	41	+	return nil
	42	+	}
6	43		h, err := loader.Open()
7	44		if err != nil {
8	45		return err
9	46		}
10		-	return registerAll(h)
	47	+	if err := registerAll(h); err != nil {
	48	+	return err
	49	+	}
	50	+	defaultAPI = defaultImpl{}
	51	+	registered = true
	52	+	return nil
	53	+	}
	54	+
	55	+	// Default returns the default CAPI instance after Register() has been called.
	56	+	// Returns nil if Register() has not been called successfully.
	57	+	func Default() portout.CAPI {
	58	+	return defaultAPI
11	59		}

@@ -1,11 +1,59 @@
1		package capi	1		package capi
2			2
3	-	import "github.com/bnema/purego-pipewire/internal/loader"	3	+	import (
			4	+	"unsafe"
4			5
			6	+	"github.com/bnema/purego-pipewire/internal/loader"
			7	+	portout "github.com/bnema/purego-pipewire/internal/ports/out"
			8	+	)
			9	+
			10	+	// defaultImpl implements portout.CAPI by wrapping the registered functions.
			11	+	type defaultImpl struct{}
			12	+
			13	+	func (d defaultImpl) PWInit(argc int32, argv **byte) {
			14	+	pw_init(argc, argv)
			15	+	}
			16	+
			17	+	func (d defaultImpl) PWDeinit() {
			18	+	pw_deinit()
			19	+	}
			20	+
			21	+	func (d defaultImpl) PWMainLoopNew(props unsafe.Pointer) unsafe.Pointer {
			22	+	return pw_main_loop_new(props)
			23	+	}
			24	+
			25	+	func (d defaultImpl) PWMainLoopDestroy(loop unsafe.Pointer) {
			26	+	pw_main_loop_destroy(loop)
			27	+	}
			28	+
			29	+	func (d defaultImpl) PWMainLoopRun(loop unsafe.Pointer) int32 {
			30	+	return pw_main_loop_run(loop)
			31	+	}
			32	+
			33	+	var (
			34	+	defaultAPI portout.CAPI
			35	+	registered bool
			36	+	)
			37	+
			38	+	// Register loads the PipeWire libraries and registers all function bindings.
5		func Register() error {	39		func Register() error {
			40	+	if registered {
			41	+	return nil
			42	+	}
6		h, err := loader.Open()	43		h, err := loader.Open()
7		if err != nil {	44		if err != nil {
8		return err	45		return err
9		}	46		}
10	-	return registerAll(h)	47	+	if err := registerAll(h); err != nil {
			48	+	return err
			49	+	}
			50	+	defaultAPI = defaultImpl{}
			51	+	registered = true
			52	+	return nil
			53	+	}
			54	+
			55	+	// Default returns the default CAPI instance after Register() has been called.
			56	+	// Returns nil if Register() has not been called successfully.
			57	+	func Default() portout.CAPI {
			58	+	return defaultAPI
11		}	59		}

A pipewire/context.go +29 -0

@@ -0,0 +1,29 @@
	1	+	package pipewire
	2	+
	3	+	import (
	4	+	"github.com/bnema/purego-pipewire/internal/core"
	5	+	)
	6	+
	7	+	// Context is the public interface for PipeWire context operations.
	8	+	// Contexts manage resources and connections to the PipeWire server.
	9	+	type Context interface {
	10	+	Destroy()
	11	+	Connect() (Core, error)
	12	+	}
	13	+
	14	+	// contextWrapper wraps the internal core.Context to implement the public Context interface.
	15	+	type contextWrapper struct {
	16	+	inner *core.Context
	17	+	}
	18	+
	19	+	func (cw contextWrapper) Destroy() {
	20	+	cw.inner.Destroy()
	21	+	}
	22	+
	23	+	func (cw contextWrapper) Connect() (Core, error) {
	24	+	c, err := cw.inner.Connect()
	25	+	if err != nil {
	26	+	return nil, err
	27	+	}
	28	+	return coreWrapper{inner: c}, nil
	29	+	}

@@ -0,0 +1,29 @@
	1	+	package pipewire
	2	+
	3	+	import (
	4	+	"github.com/bnema/purego-pipewire/internal/core"
	5	+	)
	6	+
	7	+	// Context is the public interface for PipeWire context operations.
	8	+	// Contexts manage resources and connections to the PipeWire server.
	9	+	type Context interface {
	10	+	Destroy()
	11	+	Connect() (Core, error)
	12	+	}
	13	+
	14	+	// contextWrapper wraps the internal core.Context to implement the public Context interface.
	15	+	type contextWrapper struct {
	16	+	inner *core.Context
	17	+	}
	18	+
	19	+	func (cw contextWrapper) Destroy() {
	20	+	cw.inner.Destroy()
	21	+	}
	22	+
	23	+	func (cw contextWrapper) Connect() (Core, error) {
	24	+	c, err := cw.inner.Connect()
	25	+	if err != nil {
	26	+	return nil, err
	27	+	}
	28	+	return coreWrapper{inner: c}, nil
	29	+	}

A pipewire/core.go +40 -0

@@ -0,0 +1,40 @@
	1	+	package pipewire
	2	+
	3	+	import (
	4	+	"unsafe"
	5	+
	6	+	"github.com/bnema/purego-pipewire/internal/core"
	7	+	)
	8	+
	9	+	// Core is the public interface for PipeWire core connection operations.
	10	+	// A Core represents a connection to the PipeWire server.
	11	+	type Core interface {
	12	+	Disconnect()
	13	+	Registry() (Registry, error)
	14	+	NewStream(name string, props unsafe.Pointer) (Stream, error)
	15	+	}
	16	+
	17	+	// coreWrapper wraps the internal core.Core to implement the public Core interface.
	18	+	type coreWrapper struct {
	19	+	inner *core.Core
	20	+	}
	21	+
	22	+	func (cw coreWrapper) Disconnect() {
	23	+	cw.inner.Disconnect()
	24	+	}
	25	+
	26	+	func (cw coreWrapper) Registry() (Registry, error) {
	27	+	r, err := cw.inner.Registry()
	28	+	if err != nil {
	29	+	return nil, err
	30	+	}
	31	+	return registryWrapper{inner: r}, nil
	32	+	}
	33	+
	34	+	func (cw coreWrapper) NewStream(name string, props unsafe.Pointer) (Stream, error) {
	35	+	s, err := cw.inner.NewStream(name, props)
	36	+	if err != nil {
	37	+	return nil, err
	38	+	}
	39	+	return streamWrapper{inner: s}, nil
	40	+	}

@@ -0,0 +1,40 @@
	1	+	package pipewire
	2	+
	3	+	import (
	4	+	"unsafe"
	5	+
	6	+	"github.com/bnema/purego-pipewire/internal/core"
	7	+	)
	8	+
	9	+	// Core is the public interface for PipeWire core connection operations.
	10	+	// A Core represents a connection to the PipeWire server.
	11	+	type Core interface {
	12	+	Disconnect()
	13	+	Registry() (Registry, error)
	14	+	NewStream(name string, props unsafe.Pointer) (Stream, error)
	15	+	}
	16	+
	17	+	// coreWrapper wraps the internal core.Core to implement the public Core interface.
	18	+	type coreWrapper struct {
	19	+	inner *core.Core
	20	+	}
	21	+
	22	+	func (cw coreWrapper) Disconnect() {
	23	+	cw.inner.Disconnect()
	24	+	}
	25	+
	26	+	func (cw coreWrapper) Registry() (Registry, error) {
	27	+	r, err := cw.inner.Registry()
	28	+	if err != nil {
	29	+	return nil, err
	30	+	}
	31	+	return registryWrapper{inner: r}, nil
	32	+	}
	33	+
	34	+	func (cw coreWrapper) NewStream(name string, props unsafe.Pointer) (Stream, error) {
	35	+	s, err := cw.inner.NewStream(name, props)
	36	+	if err != nil {
	37	+	return nil, err
	38	+	}
	39	+	return streamWrapper{inner: s}, nil
	40	+	}

A pipewire/interfaces.go +14 -0

@@ -0,0 +1,14 @@
	1	+	package pipewire
	2	+
	3	+	// Runtime is the public interface for PipeWire runtime lifecycle management.
	4	+	type Runtime interface {
	5	+	Init() error
	6	+	Deinit()
	7	+	NewMainLoop() (MainLoop, error)
	8	+	}
	9	+
	10	+	// MainLoop is the public interface for PipeWire main loop operations.
	11	+	type MainLoop interface {
	12	+	Run()
	13	+	Destroy()
	14	+	}

@@ -0,0 +1,14 @@
	1	+	package pipewire
	2	+
	3	+	// Runtime is the public interface for PipeWire runtime lifecycle management.
	4	+	type Runtime interface {
	5	+	Init() error
	6	+	Deinit()
	7	+	NewMainLoop() (MainLoop, error)
	8	+	}
	9	+
	10	+	// MainLoop is the public interface for PipeWire main loop operations.
	11	+	type MainLoop interface {
	12	+	Run()
	13	+	Destroy()
	14	+	}

A pipewire/loop.go +4 -0

@@ -0,0 +1,4 @@
	1	+	package pipewire
	2	+
	3	+	// Loop provides additional main loop related types and constants.
	4	+	// This file exists for future loop-related public API expansion.

@@ -0,0 +1,4 @@
	1	+	package pipewire
	2	+
	3	+	// Loop provides additional main loop related types and constants.
	4	+	// This file exists for future loop-related public API expansion.

A pipewire/registry.go +27 -0

@@ -0,0 +1,27 @@
	1	+	package pipewire
	2	+
	3	+	import (
	4	+	"unsafe"
	5	+
	6	+	"github.com/bnema/purego-pipewire/internal/core"
	7	+	)
	8	+
	9	+	// Registry is the public interface for PipeWire registry operations.
	10	+	// The registry is used to discover and bind to global objects.
	11	+	type Registry interface {
	12	+	Destroy()
	13	+	Bind(name uint32, t string, version uint32) (unsafe.Pointer, error)
	14	+	}
	15	+
	16	+	// registryWrapper wraps the internal core.Registry to implement the public Registry interface.
	17	+	type registryWrapper struct {
	18	+	inner *core.Registry
	19	+	}
	20	+
	21	+	func (rw registryWrapper) Destroy() {
	22	+	rw.inner.Destroy()
	23	+	}
	24	+
	25	+	func (rw registryWrapper) Bind(name uint32, t string, version uint32) (unsafe.Pointer, error) {
	26	+	return rw.inner.Bind(name, t, version)
	27	+	}

@@ -0,0 +1,27 @@
	1	+	package pipewire
	2	+
	3	+	import (
	4	+	"unsafe"
	5	+
	6	+	"github.com/bnema/purego-pipewire/internal/core"
	7	+	)
	8	+
	9	+	// Registry is the public interface for PipeWire registry operations.
	10	+	// The registry is used to discover and bind to global objects.
	11	+	type Registry interface {
	12	+	Destroy()
	13	+	Bind(name uint32, t string, version uint32) (unsafe.Pointer, error)
	14	+	}
	15	+
	16	+	// registryWrapper wraps the internal core.Registry to implement the public Registry interface.
	17	+	type registryWrapper struct {
	18	+	inner *core.Registry
	19	+	}
	20	+
	21	+	func (rw registryWrapper) Destroy() {
	22	+	rw.inner.Destroy()
	23	+	}
	24	+
	25	+	func (rw registryWrapper) Bind(name uint32, t string, version uint32) (unsafe.Pointer, error) {
	26	+	return rw.inner.Bind(name, t, version)
	27	+	}

A pipewire/runtime.go +60 -0

@@ -0,0 +1,60 @@
	1	+	package pipewire
	2	+
	3	+	import (
	4	+	"errors"
	5	+
	6	+	"github.com/bnema/purego-pipewire/internal/capi"
	7	+	"github.com/bnema/purego-pipewire/internal/core"
	8	+	)
	9	+
	10	+	// runtimeWrapper wraps the internal core.Runtime to implement the public Runtime interface.
	11	+	type runtimeWrapper struct {
	12	+	inner *core.Runtime
	13	+	}
	14	+
	15	+	func (rw runtimeWrapper) Init() error {
	16	+	return rw.inner.Init()
	17	+	}
	18	+
	19	+	func (rw runtimeWrapper) Deinit() {
	20	+	rw.inner.Deinit()
	21	+	}
	22	+
	23	+	func (rw runtimeWrapper) NewMainLoop() (MainLoop, error) {
	24	+	ml, err := rw.inner.NewMainLoop()
	25	+	if err != nil {
	26	+	return nil, err
	27	+	}
	28	+	return mainLoopWrapper{inner: ml}, nil
	29	+	}
	30	+
	31	+	// mainLoopWrapper wraps the internal core.MainLoop to implement the public MainLoop interface.
	32	+	type mainLoopWrapper struct {
	33	+	inner *core.MainLoop
	34	+	}
	35	+
	36	+	func (mlw mainLoopWrapper) Run() {
	37	+	mlw.inner.Run()
	38	+	}
	39	+
	40	+	func (mlw mainLoopWrapper) Destroy() {
	41	+	mlw.inner.Destroy()
	42	+	}
	43	+
	44	+	// Init initializes the PipeWire runtime and returns a Runtime instance.
	45	+	// This function must be called before using any other PipeWire functionality.
	46	+	// Returns an error if the PipeWire libraries cannot be loaded.
	47	+	func Init() (Runtime, error) {
	48	+	if err := capi.Register(); err != nil {
	49	+	return nil, err
	50	+	}
	51	+	capiInstance := capi.Default()
	52	+	if capiInstance == nil {
	53	+	return nil, errors.New("failed to get default CAPI instance")
	54	+	}
	55	+	r := core.NewRuntime(capiInstance)
	56	+	if err := r.Init(); err != nil {
	57	+	return nil, err
	58	+	}
	59	+	return runtimeWrapper{inner: r}, nil
	60	+	}

@@ -0,0 +1,60 @@
	1	+	package pipewire
	2	+
	3	+	import (
	4	+	"errors"
	5	+
	6	+	"github.com/bnema/purego-pipewire/internal/capi"
	7	+	"github.com/bnema/purego-pipewire/internal/core"
	8	+	)
	9	+
	10	+	// runtimeWrapper wraps the internal core.Runtime to implement the public Runtime interface.
	11	+	type runtimeWrapper struct {
	12	+	inner *core.Runtime
	13	+	}
	14	+
	15	+	func (rw runtimeWrapper) Init() error {
	16	+	return rw.inner.Init()
	17	+	}
	18	+
	19	+	func (rw runtimeWrapper) Deinit() {
	20	+	rw.inner.Deinit()
	21	+	}
	22	+
	23	+	func (rw runtimeWrapper) NewMainLoop() (MainLoop, error) {
	24	+	ml, err := rw.inner.NewMainLoop()
	25	+	if err != nil {
	26	+	return nil, err
	27	+	}
	28	+	return mainLoopWrapper{inner: ml}, nil
	29	+	}
	30	+
	31	+	// mainLoopWrapper wraps the internal core.MainLoop to implement the public MainLoop interface.
	32	+	type mainLoopWrapper struct {
	33	+	inner *core.MainLoop
	34	+	}
	35	+
	36	+	func (mlw mainLoopWrapper) Run() {
	37	+	mlw.inner.Run()
	38	+	}
	39	+
	40	+	func (mlw mainLoopWrapper) Destroy() {
	41	+	mlw.inner.Destroy()
	42	+	}
	43	+
	44	+	// Init initializes the PipeWire runtime and returns a Runtime instance.
	45	+	// This function must be called before using any other PipeWire functionality.
	46	+	// Returns an error if the PipeWire libraries cannot be loaded.
	47	+	func Init() (Runtime, error) {
	48	+	if err := capi.Register(); err != nil {
	49	+	return nil, err
	50	+	}
	51	+	capiInstance := capi.Default()
	52	+	if capiInstance == nil {
	53	+	return nil, errors.New("failed to get default CAPI instance")
	54	+	}
	55	+	r := core.NewRuntime(capiInstance)
	56	+	if err := r.Init(); err != nil {
	57	+	return nil, err
	58	+	}
	59	+	return runtimeWrapper{inner: r}, nil
	60	+	}

A pipewire/runtime_test.go +13 -0

@@ -0,0 +1,13 @@
	1	+	package pipewire
	2	+
	3	+	import "testing"
	4	+
	5	+	func TestInitReturnsRuntime(t *testing.T) {
	6	+	r, err := Init()
	7	+	if err != nil {
	8	+	t.Fatalf("Init returned error: %v", err)
	9	+	}
	10	+	if r == nil {
	11	+	t.Fatal("Init returned nil runtime")
	12	+	}
	13	+	}

@@ -0,0 +1,13 @@
	1	+	package pipewire
	2	+
	3	+	import "testing"
	4	+
	5	+	func TestInitReturnsRuntime(t *testing.T) {
	6	+	r, err := Init()
	7	+	if err != nil {
	8	+	t.Fatalf("Init returned error: %v", err)
	9	+	}
	10	+	if r == nil {
	11	+	t.Fatal("Init returned nil runtime")
	12	+	}
	13	+	}

A pipewire/stream.go +32 -0

@@ -0,0 +1,32 @@
	1	+	package pipewire
	2	+
	3	+	import (
	4	+	"unsafe"
	5	+
	6	+	"github.com/bnema/purego-pipewire/internal/core"
	7	+	)
	8	+
	9	+	// Stream is the public interface for PipeWire stream operations.
	10	+	// Streams are used to transfer audio/video data to and from PipeWire.
	11	+	type Stream interface {
	12	+	Destroy()
	13	+	Connect(direction int, id uint32, flags uint32, params unsafe.Pointer) error
	14	+	Disconnect()
	15	+	}
	16	+
	17	+	// streamWrapper wraps the internal core.Stream to implement the public Stream interface.
	18	+	type streamWrapper struct {
	19	+	inner *core.Stream
	20	+	}
	21	+
	22	+	func (sw streamWrapper) Destroy() {
	23	+	sw.inner.Destroy()
	24	+	}
	25	+
	26	+	func (sw streamWrapper) Connect(direction int, id uint32, flags uint32, params unsafe.Pointer) error {
	27	+	return sw.inner.Connect(direction, id, flags, params)
	28	+	}
	29	+
	30	+	func (sw streamWrapper) Disconnect() {
	31	+	sw.inner.Disconnect()
	32	+	}

@@ -0,0 +1,32 @@
	1	+	package pipewire
	2	+
	3	+	import (
	4	+	"unsafe"
	5	+
	6	+	"github.com/bnema/purego-pipewire/internal/core"
	7	+	)
	8	+
	9	+	// Stream is the public interface for PipeWire stream operations.
	10	+	// Streams are used to transfer audio/video data to and from PipeWire.
	11	+	type Stream interface {
	12	+	Destroy()
	13	+	Connect(direction int, id uint32, flags uint32, params unsafe.Pointer) error
	14	+	Disconnect()
	15	+	}
	16	+
	17	+	// streamWrapper wraps the internal core.Stream to implement the public Stream interface.
	18	+	type streamWrapper struct {
	19	+	inner *core.Stream
	20	+	}
	21	+
	22	+	func (sw streamWrapper) Destroy() {
	23	+	sw.inner.Destroy()
	24	+	}
	25	+
	26	+	func (sw streamWrapper) Connect(direction int, id uint32, flags uint32, params unsafe.Pointer) error {
	27	+	return sw.inner.Connect(direction, id, flags, params)
	28	+	}
	29	+
	30	+	func (sw streamWrapper) Disconnect() {
	31	+	sw.inner.Disconnect()
	32	+	}

A spa/constants.go +18 -0

@@ -0,0 +1,18 @@
	1	+	package spa
	2	+
	3	+	// Media type constants for SPA media types.
	4	+	const (
	5	+	MediaTypeUnknown = 0
	6	+	MediaTypeAudio = 1
	7	+	MediaTypeVideo = 2
	8	+	MediaTypeImage = 3
	9	+	MediaTypeBinary = 4
	10	+	MediaTypeStream = 5
	11	+	MediaTypeApplication = 6
	12	+	)
	13	+
	14	+	// Direction constants for port directions.
	15	+	const (
	16	+	DirectionInput = 0
	17	+	DirectionOutput = 1
	18	+	)

@@ -0,0 +1,18 @@
	1	+	package spa
	2	+
	3	+	// Media type constants for SPA media types.
	4	+	const (
	5	+	MediaTypeUnknown = 0
	6	+	MediaTypeAudio = 1
	7	+	MediaTypeVideo = 2
	8	+	MediaTypeImage = 3
	9	+	MediaTypeBinary = 4
	10	+	MediaTypeStream = 5
	11	+	MediaTypeApplication = 6
	12	+	)
	13	+
	14	+	// Direction constants for port directions.
	15	+	const (
	16	+	DirectionInput = 0
	17	+	DirectionOutput = 1
	18	+	)

A spa/formats.go +32 -0

@@ -0,0 +1,32 @@
	1	+	package spa
	2	+
	3	+	// Format represents a SPA media format identifier.
	4	+	type Format uint32
	5	+
	6	+	// Standard SPA audio/video formats.
	7	+	const (
	8	+	FormatUnknown Format = 0
	9	+	FormatEncoded Format = 1
	10	+	FormatS8 Format = 2
	11	+	FormatU8 Format = 3
	12	+	FormatS16LE Format = 4
	13	+	FormatS16BE Format = 5
	14	+	FormatU16LE Format = 6
	15	+	FormatU16BE Format = 7
	16	+	FormatS24LE Format = 8
	17	+	FormatS24BE Format = 9
	18	+	FormatU24LE Format = 10
	19	+	FormatU24BE Format = 11
	20	+	FormatS32LE Format = 12
	21	+	FormatS32BE Format = 13
	22	+	FormatU32LE Format = 14
	23	+	FormatU32BE Format = 15
	24	+	FormatF32LE Format = 16
	25	+	FormatF32BE Format = 17
	26	+	FormatF64LE Format = 18
	27	+	FormatF64BE Format = 19
	28	+	FormatS24_32LE Format = 20
	29	+	FormatS24_32BE Format = 21
	30	+	FormatU24_32LE Format = 22
	31	+	FormatU24_32BE Format = 23
	32	+	)

@@ -0,0 +1,32 @@
	1	+	package spa
	2	+
	3	+	// Format represents a SPA media format identifier.
	4	+	type Format uint32
	5	+
	6	+	// Standard SPA audio/video formats.
	7	+	const (
	8	+	FormatUnknown Format = 0
	9	+	FormatEncoded Format = 1
	10	+	FormatS8 Format = 2
	11	+	FormatU8 Format = 3
	12	+	FormatS16LE Format = 4
	13	+	FormatS16BE Format = 5
	14	+	FormatU16LE Format = 6
	15	+	FormatU16BE Format = 7
	16	+	FormatS24LE Format = 8
	17	+	FormatS24BE Format = 9
	18	+	FormatU24LE Format = 10
	19	+	FormatU24BE Format = 11
	20	+	FormatS32LE Format = 12
	21	+	FormatS32BE Format = 13
	22	+	FormatU32LE Format = 14
	23	+	FormatU32BE Format = 15
	24	+	FormatF32LE Format = 16
	25	+	FormatF32BE Format = 17
	26	+	FormatF64LE Format = 18
	27	+	FormatF64BE Format = 19
	28	+	FormatS24_32LE Format = 20
	29	+	FormatS24_32BE Format = 21
	30	+	FormatU24_32LE Format = 22
	31	+	FormatU24_32BE Format = 23
	32	+	)