public static CMBlockBuffer CreateContiguous(CMBlockBuffer sourceBuffer, CMCustomBlockAllocator customBlockSource, nuint offsetToData, nuint dataLength, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
if (sourceBuffer == null)
{
throw new ArgumentNullException("sourceBuffer");
}
IntPtr buffer;
if (customBlockSource == null)
{
error = CMBlockBufferCreateContiguous(IntPtr.Zero, sourceBuffer.handle, IntPtr.Zero, IntPtr.Zero, offsetToData, dataLength, flags, out buffer);
}
else
{
error = CMBlockBufferCreateContiguous(IntPtr.Zero, sourceBuffer.handle, IntPtr.Zero, ref customBlockSource.Cblock, offsetToData, dataLength, flags, out buffer);
}
if (error != CMBlockBufferError.None)
{
return(null);
}
var block = new CMBlockBuffer(buffer, true);
block.customAllocator = customBlockSource;
return(block);
}
public static CMSampleBuffer CreateReadyWithPacketDescriptions(CMBlockBuffer dataBuffer, CMFormatDescription formatDescription, int samplesCount,
CMTime sampleTimestamp, AudioStreamPacketDescription[] packetDescriptions, out CMSampleBufferError error)
{
if (dataBuffer == null)
{
throw new ArgumentNullException("dataBuffer");
}
if (formatDescription == null)
{
throw new ArgumentNullException("formatDescription");
}
if (samplesCount <= 0)
{
throw new ArgumentOutOfRangeException("samplesCount");
}
IntPtr buffer;
error = CMAudioSampleBufferCreateReadyWithPacketDescriptions(IntPtr.Zero, dataBuffer.handle,
formatDescription.handle, samplesCount, sampleTimestamp, packetDescriptions, out buffer);
if (error != CMSampleBufferError.None)
{
return(null);
}
return(new CMSampleBuffer(buffer, true));
}
public static CMBlockBuffer FromMemoryBlock(IntPtr memoryBlock, nuint blockLength, CMCustomBlockAllocator customBlockSource, nuint offsetToData, nuint dataLength, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
var blockAllocator = memoryBlock == IntPtr.Zero ? IntPtr.Zero : CFAllocator.Null.Handle;
IntPtr buffer;
if (customBlockSource == null)
{
error = CMBlockBufferCreateWithMemoryBlock(IntPtr.Zero, memoryBlock, blockLength, blockAllocator, IntPtr.Zero, offsetToData, dataLength, flags, out buffer);
}
else
{
error = CMBlockBufferCreateWithMemoryBlock(IntPtr.Zero, memoryBlock, blockLength, blockAllocator, ref customBlockSource.Cblock, offsetToData, dataLength, flags, out buffer);
}
if (error != CMBlockBufferError.None)
{
return(null);
}
var block = new CMBlockBuffer(buffer, true);
block.customAllocator = customBlockSource;
return(block);
}
public static CMSampleBuffer CreateReady(CMBlockBuffer dataBuffer, CMFormatDescription formatDescription,
int samplesCount, CMSampleTimingInfo[] sampleTimingArray, nuint[] sampleSizeArray,
out CMSampleBufferError error)
{
if (dataBuffer == null)
{
throw new ArgumentNullException("dataBuffer");
}
if (samplesCount < 0)
{
throw new ArgumentOutOfRangeException("samplesCount");
}
IntPtr buffer;
var fdh = formatDescription == null ? IntPtr.Zero : formatDescription.Handle;
var timingCount = sampleTimingArray == null ? 0 : sampleTimingArray.Length;
var sizeCount = sampleSizeArray == null ? 0 : sampleSizeArray.Length;
error = CMSampleBufferCreateReady(IntPtr.Zero, dataBuffer.handle, fdh, samplesCount, timingCount,
sampleTimingArray, sizeCount, sampleSizeArray, out buffer);
if (error != CMSampleBufferError.None)
{
return(null);
}
return(new CMSampleBuffer(buffer, true));
}
public static CMSampleBuffer?CreateReady(CMBlockBuffer dataBuffer, CMFormatDescription?formatDescription,
int samplesCount, CMSampleTimingInfo[]?sampleTimingArray, nuint[]?sampleSizeArray,
out CMSampleBufferError error)
{
if (dataBuffer is null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentNullException(nameof(dataBuffer));
}
if (samplesCount < 0)
{
ObjCRuntime.ThrowHelper.ThrowArgumentOutOfRangeException(nameof(samplesCount), "Negative");
}
IntPtr buffer;
var fdh = formatDescription.GetHandle();
var timingCount = sampleTimingArray is null ? 0 : sampleTimingArray.Length;
var sizeCount = sampleSizeArray is null ? 0 : sampleSizeArray.Length;
error = CMSampleBufferCreateReady(IntPtr.Zero, dataBuffer.Handle, fdh, samplesCount, timingCount,
sampleTimingArray, sizeCount, sampleSizeArray, out buffer);
if (error != CMSampleBufferError.None)
{
return(null);
}
return(new CMSampleBuffer(buffer, true));
}
public static CMSampleBuffer?CreateReadyWithPacketDescriptions(CMBlockBuffer dataBuffer, CMFormatDescription formatDescription, int samplesCount,
CMTime sampleTimestamp, AudioStreamPacketDescription[]?packetDescriptions, out CMSampleBufferError error)
{
if (dataBuffer is null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentNullException(nameof(dataBuffer));
}
if (formatDescription is null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentNullException(nameof(formatDescription));
}
if (samplesCount <= 0)
{
ObjCRuntime.ThrowHelper.ThrowArgumentOutOfRangeException(nameof(samplesCount), "smaller than 0");
}
error = CMAudioSampleBufferCreateReadyWithPacketDescriptions(IntPtr.Zero, dataBuffer.Handle,
formatDescription.Handle, samplesCount, sampleTimestamp, packetDescriptions, out var buffer);
if (error != CMSampleBufferError.None)
{
return(null);
}
return(new CMSampleBuffer(buffer, true));
}
public int /*CMSampleBufferError*/ SetDataBuffer(CMBlockBuffer dataBuffer)
{
var dataBufferHandle = IntPtr.Zero;
if (dataBuffer != null)
{
dataBufferHandle = dataBuffer.handle;
}
return((int)CMSampleBufferSetDataBuffer(handle, dataBufferHandle));
}
public CMBlockBufferError AppendBuffer(CMBlockBuffer targetBuffer, nuint offsetToData, nuint dataLength, CMBlockBufferFlags flags)
{
if (Handle == IntPtr.Zero)
{
throw new ObjectDisposedException("BlockBuffer");
}
// From docs targetBuffer must not be null unless the PermitEmptyReference flag is set
if (!flags.HasFlag(CMBlockBufferFlags.PermitEmptyReference))
{
if (targetBuffer == null)
{
throw new ArgumentNullException("targetBuffer");
}
}
return(CMBlockBufferAppendBufferReference(Handle, targetBuffer == null ? IntPtr.Zero : targetBuffer.handle, offsetToData, dataLength, flags));
}
public static CMBlockBuffer FromBuffer(CMBlockBuffer targetBuffer, nuint offsetToData, nuint dataLength, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
// From docs targetBuffer must not be null unless the PermitEmptyReference flag is set
if (!flags.HasFlag(CMBlockBufferFlags.PermitEmptyReference))
{
if (targetBuffer == null)
{
throw new ArgumentNullException("targetBuffer");
}
}
IntPtr buffer;
error = CMBlockBufferCreateWithBufferReference(IntPtr.Zero, targetBuffer == null ? IntPtr.Zero : targetBuffer.handle, offsetToData, dataLength, flags, out buffer);
if (error != CMBlockBufferError.None)
{
return(null);
}
return(new CMBlockBuffer(buffer, true));
}
public CMSampleBufferError SetDataBuffer(CMBlockBuffer dataBuffer)
{
var dataBufferHandle = dataBuffer == null ? IntPtr.Zero : dataBuffer.handle;
return(CMSampleBufferSetDataBuffer(handle, dataBufferHandle));
}
public CMSampleBufferError SetDataBuffer(CMBlockBuffer dataBuffer)
{
return(CMSampleBufferSetDataBuffer(Handle, dataBuffer.GetHandle()));
}
