subprojects/gstreamer-sharp/sources/generated/Gst.Audio/Global.cs

// This file was generated by the Gtk# code generator.
// Any changes made will be lost if regenerated.

namespace Gst.Audio {

	using System;
	using System.Collections;
	using System.Collections.Generic;
	using System.Runtime.InteropServices;

#region Autogenerated code
	public partial class Global {

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_buffer_clip(IntPtr buffer, IntPtr segment, int rate, int bpf);

		public static Gst.Buffer AudioBufferClip(Gst.Buffer buffer, Gst.Segment segment, int rate, int bpf) {
			buffer.Owned = false;
			IntPtr native_segment = GLib.Marshaller.StructureToPtrAlloc (segment);
			IntPtr raw_ret = gst_audio_buffer_clip(buffer == null ? IntPtr.Zero : buffer.Handle, native_segment, rate, bpf);
			Gst.Buffer ret = raw_ret == IntPtr.Zero ? null : (Gst.Buffer) GLib.Opaque.GetOpaque (raw_ret, typeof (Gst.Buffer), true);
			Marshal.FreeHGlobal (native_segment);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern bool gst_audio_buffer_map(IntPtr buffer, IntPtr info, IntPtr gstbuffer, int flags);

		public static bool AudioBufferMap(out Gst.Audio.AudioBuffer buffer, Gst.Audio.AudioInfo info, Gst.Buffer gstbuffer, Gst.MapFlags flags) {
			IntPtr native_buffer = Marshal.AllocHGlobal (Marshal.SizeOf (typeof (Gst.Audio.AudioBuffer)));
			bool raw_ret = gst_audio_buffer_map(native_buffer, info == null ? IntPtr.Zero : info.Handle, gstbuffer == null ? IntPtr.Zero : gstbuffer.Handle, (int) flags);
			bool ret = raw_ret;
			buffer = Gst.Audio.AudioBuffer.New (native_buffer);
			Marshal.FreeHGlobal (native_buffer);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern bool gst_audio_buffer_reorder_channels(IntPtr buffer, int format, int channels, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=2)]int[] from, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=2)]int[] to);

		public static bool AudioBufferReorderChannels(Gst.Buffer buffer, Gst.Audio.AudioFormat format, Gst.Audio.AudioChannelPosition[] from, Gst.Audio.AudioChannelPosition[] to) {
			int channels = (from == null ? 0 : from.Length);
			int[] native_from = new int [channels];
			for (int i = 0; i < channels; i++)
				native_from [i] = (int) from[i];
			int[] native_to = new int [channels];
			for (int i = 0; i < channels; i++)
				native_to [i] = (int) to[i];
			bool raw_ret = gst_audio_buffer_reorder_channels(buffer == null ? IntPtr.Zero : buffer.Handle, (int) format, channels, native_from, native_to);
			bool ret = raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_buffer_truncate(IntPtr buffer, int bpf, UIntPtr trim, UIntPtr samples);

		public static Gst.Buffer AudioBufferTruncate(Gst.Buffer buffer, int bpf, ulong trim, ulong samples) {
			buffer.Owned = false;
			IntPtr raw_ret = gst_audio_buffer_truncate(buffer == null ? IntPtr.Zero : buffer.Handle, bpf, new UIntPtr (trim), new UIntPtr (samples));
			Gst.Buffer ret = raw_ret == IntPtr.Zero ? null : (Gst.Buffer) GLib.Opaque.GetOpaque (raw_ret, typeof (Gst.Buffer), true);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern ulong gst_audio_channel_get_fallback_mask(int channels);

		public static ulong AudioChannelGetFallbackMask(int channels) {
			ulong raw_ret = gst_audio_channel_get_fallback_mask(channels);
			ulong ret = raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern bool gst_audio_channel_positions_from_mask(ulong channel_mask, int channels, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=0)]int[] position);

		public static bool AudioChannelPositionsFromMask(ulong channel_mask, Gst.Audio.AudioChannelPosition[] position) {
			int channels = (position == null ? 0 : position.Length);
			int[] native_position = new int [channels];
			for (int i = 0; i < channels; i++)
				native_position [i] = (int) position[i];
			bool raw_ret = gst_audio_channel_positions_from_mask(channel_mask, channels, native_position);
			bool ret = raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern bool gst_audio_channel_positions_to_mask([MarshalAs(UnmanagedType.LPArray, SizeParamIndex=1)]int[] position, int channels, bool force_order, out ulong channel_mask);

		public static bool AudioChannelPositionsToMask(Gst.Audio.AudioChannelPosition[] position, bool force_order, out ulong channel_mask) {
			int channels = (position == null ? 0 : position.Length);
			int[] native_position = new int [channels];
			for (int i = 0; i < channels; i++)
				native_position [i] = (int) position[i];
			bool raw_ret = gst_audio_channel_positions_to_mask(native_position, channels, force_order, out channel_mask);
			bool ret = raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_channel_positions_to_string([MarshalAs(UnmanagedType.LPArray, SizeParamIndex=1)]int[] position, int channels);

		public static string AudioChannelPositionsToString(Gst.Audio.AudioChannelPosition[] position) {
			int channels = (position == null ? 0 : position.Length);
			int[] native_position = new int [channels];
			for (int i = 0; i < channels; i++)
				native_position [i] = (int) position[i];
			IntPtr raw_ret = gst_audio_channel_positions_to_string(native_position, channels);
			string ret = GLib.Marshaller.PtrToStringGFree(raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern bool gst_audio_channel_positions_to_valid_order([MarshalAs(UnmanagedType.LPArray, SizeParamIndex=1)]int[] position, int channels);

		public static bool AudioChannelPositionsToValidOrder(Gst.Audio.AudioChannelPosition[] position) {
			int channels = (position == null ? 0 : position.Length);
			int[] native_position = new int [channels];
			for (int i = 0; i < channels; i++)
				native_position [i] = (int) position[i];
			bool raw_ret = gst_audio_channel_positions_to_valid_order(native_position, channels);
			bool ret = raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern bool gst_audio_check_valid_channel_positions([MarshalAs(UnmanagedType.LPArray, SizeParamIndex=1)]int[] position, int channels, bool force_order);

		public static bool AudioCheckValidChannelPositions(Gst.Audio.AudioChannelPosition[] position, bool force_order) {
			int channels = (position == null ? 0 : position.Length);
			int[] native_position = new int [channels];
			for (int i = 0; i < channels; i++)
				native_position [i] = (int) position[i];
			bool raw_ret = gst_audio_check_valid_channel_positions(native_position, channels, force_order);
			bool ret = raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_clipping_meta_api_get_type();

		public static GLib.GType AudioClippingMetaApiGetType() {
			IntPtr raw_ret = gst_audio_clipping_meta_api_get_type();
			GLib.GType ret = new GLib.GType(raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_clipping_meta_get_info();

		public static Gst.MetaInfo AudioClippingMetaGetInfo() {
			IntPtr raw_ret = gst_audio_clipping_meta_get_info();
			Gst.MetaInfo ret = Gst.MetaInfo.New (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_downmix_meta_api_get_type();

		public static GLib.GType AudioDownmixMetaApiGetType() {
			IntPtr raw_ret = gst_audio_downmix_meta_api_get_type();
			GLib.GType ret = new GLib.GType(raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_downmix_meta_get_info();

		public static Gst.MetaInfo AudioDownmixMetaGetInfo() {
			IntPtr raw_ret = gst_audio_downmix_meta_get_info();
			Gst.MetaInfo ret = Gst.MetaInfo.New (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern int gst_audio_format_build_integer(bool sign, int endianness, int width, int depth);

		public static Gst.Audio.AudioFormat AudioFormatBuildInteger(bool sign, int endianness, int width, int depth) {
			int raw_ret = gst_audio_format_build_integer(sign, endianness, width, depth);
			Gst.Audio.AudioFormat ret = (Gst.Audio.AudioFormat) raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern void gst_audio_format_fill_silence(IntPtr info, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=2)]byte[] dest, UIntPtr n_length);

		[Obsolete]
		public static void AudioFormatFillSilence(Gst.Audio.AudioFormatInfo info, byte[] dest) {
			IntPtr native_info = GLib.Marshaller.StructureToPtrAlloc (info);
			ulong n_length = (ulong)(dest == null ? 0 : dest.Length);
			gst_audio_format_fill_silence(native_info, dest, new UIntPtr ((uint)n_length));
			Marshal.FreeHGlobal (native_info);
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern int gst_audio_format_from_string(IntPtr format);

		public static Gst.Audio.AudioFormat AudioFormatFromString(string format) {
			IntPtr native_format = GLib.Marshaller.StringToPtrGStrdup (format);
			int raw_ret = gst_audio_format_from_string(native_format);
			Gst.Audio.AudioFormat ret = (Gst.Audio.AudioFormat) raw_ret;
			GLib.Marshaller.Free (native_format);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_format_get_info(int format);

		public static Gst.Audio.AudioFormatInfo AudioFormatGetInfo(Gst.Audio.AudioFormat format) {
			IntPtr raw_ret = gst_audio_format_get_info((int) format);
			Gst.Audio.AudioFormatInfo ret = Gst.Audio.AudioFormatInfo.New (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_format_info_get_type();

		public static GLib.GType AudioFormatInfoGetType() {
			IntPtr raw_ret = gst_audio_format_info_get_type();
			GLib.GType ret = new GLib.GType(raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_format_to_string(int format);

		public static string AudioFormatToString(Gst.Audio.AudioFormat format) {
			IntPtr raw_ret = gst_audio_format_to_string((int) format);
			string ret = GLib.Marshaller.Utf8PtrToString (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern bool gst_audio_get_channel_reorder_map(int channels, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=0)]int[] from, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=0)]int[] to, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=0)]int[] reorder_map);

		public static bool AudioGetChannelReorderMap(Gst.Audio.AudioChannelPosition[] from, Gst.Audio.AudioChannelPosition[] to, int[] reorder_map) {
			int channels = (from == null ? 0 : from.Length);
			int[] native_from = new int [channels];
			for (int i = 0; i < channels; i++)
				native_from [i] = (int) from[i];
			int[] native_to = new int [channels];
			for (int i = 0; i < channels; i++)
				native_to [i] = (int) to[i];
			bool raw_ret = gst_audio_get_channel_reorder_map(channels, native_from, native_to, reorder_map);
			bool ret = raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern uint gst_audio_iec61937_frame_size(IntPtr spec);

		public static uint AudioIec61937FrameSize(Gst.Audio.AudioRingBufferSpec spec) {
			uint raw_ret = gst_audio_iec61937_frame_size(spec == null ? IntPtr.Zero : spec.Handle);
			uint ret = raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern bool gst_audio_iec61937_payload([MarshalAs(UnmanagedType.LPArray, SizeParamIndex=1)]byte[] src, uint src_n, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=3)]byte[] dst, uint dst_n, IntPtr spec, int endianness);

		public static bool AudioIec61937Payload(byte[] src, byte[] dst, Gst.Audio.AudioRingBufferSpec spec, int endianness) {
			uint src_n = (uint)(src == null ? 0 : src.Length);
			uint dst_n = (uint)(dst == null ? 0 : dst.Length);
			bool raw_ret = gst_audio_iec61937_payload(src, src_n, dst, dst_n, spec == null ? IntPtr.Zero : spec.Handle, endianness);
			bool ret = raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern bool gst_audio_info_from_caps(out IntPtr info, IntPtr caps);

		public static bool AudioInfoFromCaps(out Gst.Audio.AudioInfo info, Gst.Caps caps) {
			IntPtr native_info;
			bool raw_ret = gst_audio_info_from_caps(out native_info, caps == null ? IntPtr.Zero : caps.Handle);
			bool ret = raw_ret;
			info = native_info == IntPtr.Zero ? null : (Gst.Audio.AudioInfo) GLib.Opaque.GetOpaque (native_info, typeof (Gst.Audio.AudioInfo), false);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern void gst_audio_info_init(out IntPtr info);

		public static Gst.Audio.AudioInfo AudioInfoInit() {
			Gst.Audio.AudioInfo info;
			IntPtr native_info;
			gst_audio_info_init(out native_info);
			info = native_info == IntPtr.Zero ? null : (Gst.Audio.AudioInfo) GLib.Opaque.GetOpaque (native_info, typeof (Gst.Audio.AudioInfo), false);
			return info;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_level_meta_api_get_type();

		public static GLib.GType AudioLevelMetaApiGetType() {
			IntPtr raw_ret = gst_audio_level_meta_api_get_type();
			GLib.GType ret = new GLib.GType(raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_level_meta_get_info();

		public static Gst.MetaInfo AudioLevelMetaGetInfo() {
			IntPtr raw_ret = gst_audio_level_meta_get_info();
			Gst.MetaInfo ret = Gst.MetaInfo.New (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_make_raw_caps([MarshalAs(UnmanagedType.LPArray, SizeParamIndex=1)]int[] formats, uint len, int layout);

		public static Gst.Caps AudioMakeRawCaps(Gst.Audio.AudioFormat[] formats, Gst.Audio.AudioLayout layout) {
			uint len = (uint)(formats == null ? 0 : formats.Length);
			int[] native_formats = new int [len];
			for (int i = 0; i < len; i++)
				native_formats [i] = (int) formats[i];
			IntPtr raw_ret = gst_audio_make_raw_caps(native_formats, len, (int) layout);
			Gst.Caps ret = raw_ret == IntPtr.Zero ? null : (Gst.Caps) GLib.Opaque.GetOpaque (raw_ret, typeof (Gst.Caps), true);
			return ret;
		}

		public static Gst.Caps AudioMakeRawCaps(Gst.Audio.AudioLayout layout) {
			return AudioMakeRawCaps (null, layout);
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_meta_api_get_type();

		public static GLib.GType AudioMetaApiGetType() {
			IntPtr raw_ret = gst_audio_meta_api_get_type();
			GLib.GType ret = new GLib.GType(raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_meta_get_info();

		public static Gst.MetaInfo AudioMetaGetInfo() {
			IntPtr raw_ret = gst_audio_meta_get_info();
			Gst.MetaInfo ret = Gst.MetaInfo.New (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern bool gst_audio_reorder_channels([MarshalAs(UnmanagedType.LPArray, SizeParamIndex=1)]byte[] data, UIntPtr n_length, int format, int channels, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=3)]int[] from, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=3)]int[] to);

		public static bool AudioReorderChannels(byte[] data, Gst.Audio.AudioFormat format, Gst.Audio.AudioChannelPosition[] from, Gst.Audio.AudioChannelPosition[] to) {
			ulong n_length = (ulong)(data == null ? 0 : data.Length);
			int channels = (from == null ? 0 : from.Length);
			int[] native_from = new int [channels];
			for (int i = 0; i < channels; i++)
				native_from [i] = (int) from[i];
			int[] native_to = new int [channels];
			for (int i = 0; i < channels; i++)
				native_to [i] = (int) to[i];
			bool raw_ret = gst_audio_reorder_channels(data, new UIntPtr ((uint)n_length), (int) format, channels, native_from, native_to);
			bool ret = raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_audio_resampler_new(int method, int flags, int format, int channels, int in_rate, int out_rate, IntPtr options);

		public static Gst.Audio.AudioResampler AudioResamplerNew(Gst.Audio.AudioResamplerMethod method, Gst.Audio.AudioResamplerFlags flags, Gst.Audio.AudioFormat format, int channels, int in_rate, int out_rate, Gst.Structure options) {
			IntPtr raw_ret = gst_audio_resampler_new((int) method, (int) flags, (int) format, channels, in_rate, out_rate, options == null ? IntPtr.Zero : options.Handle);
			Gst.Audio.AudioResampler ret = raw_ret == IntPtr.Zero ? null : (Gst.Audio.AudioResampler) GLib.Opaque.GetOpaque (raw_ret, typeof (Gst.Audio.AudioResampler), true);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern void gst_audio_resampler_options_set_quality(int method, uint quality, int in_rate, int out_rate, IntPtr options);

		public static void AudioResamplerOptionsSetQuality(Gst.Audio.AudioResamplerMethod method, uint quality, int in_rate, int out_rate, Gst.Structure options) {
			gst_audio_resampler_options_set_quality((int) method, quality, in_rate, out_rate, options == null ? IntPtr.Zero : options.Handle);
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_buffer_add_audio_clipping_meta(IntPtr buffer, int format, ulong start, ulong end);

		public static Gst.Audio.AudioClippingMeta BufferAddAudioClippingMeta(Gst.Buffer buffer, Gst.Format format, ulong start, ulong end) {
			IntPtr raw_ret = gst_buffer_add_audio_clipping_meta(buffer == null ? IntPtr.Zero : buffer.Handle, (int) format, start, end);
			Gst.Audio.AudioClippingMeta ret = Gst.Audio.AudioClippingMeta.New (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_buffer_add_audio_downmix_meta(IntPtr buffer, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=2)]int[] from_position, int from_channels, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=4)]int[] to_position, int to_channels, float matrix);

		public static Gst.Audio.AudioDownmixMeta BufferAddAudioDownmixMeta(Gst.Buffer buffer, Gst.Audio.AudioChannelPosition[] from_position, Gst.Audio.AudioChannelPosition[] to_position, float matrix) {
			int from_channels = (from_position == null ? 0 : from_position.Length);
			int[] native_from_position = new int [from_channels];
			for (int i = 0; i < from_channels; i++)
				native_from_position [i] = (int) from_position[i];
			int to_channels = (to_position == null ? 0 : to_position.Length);
			int[] native_to_position = new int [to_channels];
			for (int i = 0; i < to_channels; i++)
				native_to_position [i] = (int) to_position[i];
			IntPtr raw_ret = gst_buffer_add_audio_downmix_meta(buffer == null ? IntPtr.Zero : buffer.Handle, native_from_position, from_channels, native_to_position, to_channels, matrix);
			Gst.Audio.AudioDownmixMeta ret = Gst.Audio.AudioDownmixMeta.New (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_buffer_add_audio_level_meta(IntPtr buffer, byte level, bool voice_activity);

		public static Gst.Audio.AudioLevelMeta BufferAddAudioLevelMeta(Gst.Buffer buffer, byte level, bool voice_activity) {
			IntPtr raw_ret = gst_buffer_add_audio_level_meta(buffer == null ? IntPtr.Zero : buffer.Handle, level, voice_activity);
			Gst.Audio.AudioLevelMeta ret = Gst.Audio.AudioLevelMeta.New (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_buffer_add_audio_meta(IntPtr buffer, IntPtr info, UIntPtr samples, UIntPtr offsets);

		public static Gst.Audio.AudioMeta BufferAddAudioMeta(Gst.Buffer buffer, Gst.Audio.AudioInfo info, ulong samples, ulong offsets) {
			IntPtr raw_ret = gst_buffer_add_audio_meta(buffer == null ? IntPtr.Zero : buffer.Handle, info == null ? IntPtr.Zero : info.Handle, new UIntPtr (samples), new UIntPtr (offsets));
			Gst.Audio.AudioMeta ret = Gst.Audio.AudioMeta.New (raw_ret);
			return ret;
		}

		public static Gst.Audio.AudioMeta BufferAddAudioMeta(Gst.Buffer buffer, Gst.Audio.AudioInfo info, ulong samples) {
			return BufferAddAudioMeta (buffer, info, samples, 0);
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_buffer_add_dsd_plane_offset_meta(IntPtr buffer, int num_channels, UIntPtr num_bytes_per_channel, UIntPtr offsets);

		public static Gst.Audio.DsdPlaneOffsetMeta BufferAddDsdPlaneOffsetMeta(Gst.Buffer buffer, int num_channels, ulong num_bytes_per_channel, ulong offsets) {
			IntPtr raw_ret = gst_buffer_add_dsd_plane_offset_meta(buffer == null ? IntPtr.Zero : buffer.Handle, num_channels, new UIntPtr (num_bytes_per_channel), new UIntPtr (offsets));
			Gst.Audio.DsdPlaneOffsetMeta ret = Gst.Audio.DsdPlaneOffsetMeta.New (raw_ret);
			return ret;
		}

		public static Gst.Audio.DsdPlaneOffsetMeta BufferAddDsdPlaneOffsetMeta(Gst.Buffer buffer, int num_channels, ulong num_bytes_per_channel) {
			return BufferAddDsdPlaneOffsetMeta (buffer, num_channels, num_bytes_per_channel, 0);
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_buffer_get_audio_downmix_meta_for_channels(IntPtr buffer, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex=2)]int[] to_position, int to_channels);

		public static Gst.Audio.AudioDownmixMeta BufferGetAudioDownmixMetaForChannels(Gst.Buffer buffer, Gst.Audio.AudioChannelPosition[] to_position) {
			int to_channels = (to_position == null ? 0 : to_position.Length);
			int[] native_to_position = new int [to_channels];
			for (int i = 0; i < to_channels; i++)
				native_to_position [i] = (int) to_position[i];
			IntPtr raw_ret = gst_buffer_get_audio_downmix_meta_for_channels(buffer == null ? IntPtr.Zero : buffer.Handle, native_to_position, to_channels);
			Gst.Audio.AudioDownmixMeta ret = Gst.Audio.AudioDownmixMeta.New (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_buffer_get_audio_level_meta(IntPtr buffer);

		public static Gst.Audio.AudioLevelMeta BufferGetAudioLevelMeta(Gst.Buffer buffer) {
			IntPtr raw_ret = gst_buffer_get_audio_level_meta(buffer == null ? IntPtr.Zero : buffer.Handle);
			Gst.Audio.AudioLevelMeta ret = Gst.Audio.AudioLevelMeta.New (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern void gst_dsd_convert(byte input_data, byte output_data, int input_format, int output_format, int input_layout, int output_layout, UIntPtr input_plane_offsets, UIntPtr output_plane_offsets, UIntPtr num_dsd_bytes, int num_channels, bool reverse_byte_bits);

		public static void DsdConvert(byte input_data, byte output_data, Gst.Audio.DsdFormat input_format, Gst.Audio.DsdFormat output_format, Gst.Audio.AudioLayout input_layout, Gst.Audio.AudioLayout output_layout, ulong input_plane_offsets, ulong output_plane_offsets, ulong num_dsd_bytes, int num_channels, bool reverse_byte_bits) {
			gst_dsd_convert(input_data, output_data, (int) input_format, (int) output_format, (int) input_layout, (int) output_layout, new UIntPtr (input_plane_offsets), new UIntPtr (output_plane_offsets), new UIntPtr (num_dsd_bytes), num_channels, reverse_byte_bits);
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern int gst_dsd_format_from_string(IntPtr str);

		public static Gst.Audio.DsdFormat DsdFormatFromString(string str) {
			IntPtr native_str = GLib.Marshaller.StringToPtrGStrdup (str);
			int raw_ret = gst_dsd_format_from_string(native_str);
			Gst.Audio.DsdFormat ret = (Gst.Audio.DsdFormat) raw_ret;
			GLib.Marshaller.Free (native_str);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern uint gst_dsd_format_get_width(int format);

		public static uint DsdFormatGetWidth(Gst.Audio.DsdFormat format) {
			uint raw_ret = gst_dsd_format_get_width((int) format);
			uint ret = raw_ret;
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_dsd_format_to_string(int format);

		public static string DsdFormatToString(Gst.Audio.DsdFormat format) {
			IntPtr raw_ret = gst_dsd_format_to_string((int) format);
			string ret = GLib.Marshaller.Utf8PtrToString (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern bool gst_dsd_info_from_caps(IntPtr info, IntPtr caps);

		public static bool DsdInfoFromCaps(out Gst.Audio.DsdInfo info, Gst.Caps caps) {
			IntPtr native_info = Marshal.AllocHGlobal (Marshal.SizeOf (typeof (Gst.Audio.DsdInfo)));
			bool raw_ret = gst_dsd_info_from_caps(native_info, caps == null ? IntPtr.Zero : caps.Handle);
			bool ret = raw_ret;
			info = Gst.Audio.DsdInfo.New (native_info);
			Marshal.FreeHGlobal (native_info);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern void gst_dsd_info_init(IntPtr info);

		public static Gst.Audio.DsdInfo DsdInfoInit() {
			Gst.Audio.DsdInfo info;
			IntPtr native_info = Marshal.AllocHGlobal (Marshal.SizeOf (typeof (Gst.Audio.DsdInfo)));
			gst_dsd_info_init(native_info);
			info = Gst.Audio.DsdInfo.New (native_info);
			Marshal.FreeHGlobal (native_info);
			return info;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_dsd_plane_offset_meta_api_get_type();

		public static GLib.GType DsdPlaneOffsetMetaApiGetType() {
			IntPtr raw_ret = gst_dsd_plane_offset_meta_api_get_type();
			GLib.GType ret = new GLib.GType(raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern IntPtr gst_dsd_plane_offset_meta_get_info();

		public static Gst.MetaInfo DsdPlaneOffsetMetaGetInfo() {
			IntPtr raw_ret = gst_dsd_plane_offset_meta_get_info();
			Gst.MetaInfo ret = Gst.MetaInfo.New (raw_ret);
			return ret;
		}

		[DllImport("gstaudio-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
		static extern double gst_stream_volume_convert_volume(int from, int to, double val);

		public static double StreamVolumeConvertVolume(Gst.Audio.StreamVolumeFormat from, Gst.Audio.StreamVolumeFormat to, double val) {
			double raw_ret = gst_stream_volume_convert_volume((int) from, (int) to, val);
			double ret = raw_ret;
			return ret;
		}

#endregion
	}
}