56 lines
1.9 KiB
C#
56 lines
1.9 KiB
C#
using Pcie8586Probe.Models;
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namespace Pcie8586Probe.Acquisition;
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public static class SampleBlockAssembler
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{
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public static SampleBlock Concat(IEnumerable<SampleBlock> blocks)
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{
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var list = blocks.ToList();
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if (list.Count == 0)
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{
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throw new ArgumentException("At least one block is required.", nameof(blocks));
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}
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var first = list[0];
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var channelCount = first.ChannelCount;
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var totalSamples = list.Sum(static block => block.SamplesPerChannel);
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var channels = new double[channelCount][];
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for (var channel = 0; channel < channelCount; channel++)
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{
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channels[channel] = new double[totalSamples];
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var offset = 0;
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foreach (var block in list)
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{
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if (block.ChannelCount != channelCount)
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{
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throw new InvalidOperationException("All sample blocks must have the same channel count.");
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}
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Array.Copy(block.Channels[channel], 0, channels[channel], offset, block.SamplesPerChannel);
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offset += block.SamplesPerChannel;
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}
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}
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return new SampleBlock(channels, first.SampleRateHz, first.StartSampleIndex, first.Timestamp);
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}
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public static SampleBlock Slice(SampleBlock block, int start, int count)
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{
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if (start < 0 || count < 0 || start + count > block.SamplesPerChannel)
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{
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throw new ArgumentOutOfRangeException(nameof(start));
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}
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var channels = new double[block.ChannelCount][];
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for (var channel = 0; channel < block.ChannelCount; channel++)
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{
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channels[channel] = new double[count];
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Array.Copy(block.Channels[channel], start, channels[channel], 0, count);
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}
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return new SampleBlock(channels, block.SampleRateHz, block.StartSampleIndex + start, block.Timestamp);
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}
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}
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