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Merge pull request #1 from LAGonauta/volume-meter-and-map-channels
Lots of desirable changes
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| using NAudio.Wave; | ||
| using System; | ||
| using System.Collections.Generic; | ||
|
|
||
| namespace ASIORecAndPlay | ||
| { | ||
| internal enum ChannelType | ||
| { | ||
| Input, | ||
| Output | ||
| } | ||
|
|
||
| internal static class Asio | ||
| { | ||
| public static string[] GetDevices() | ||
| { | ||
| return AsioOut.GetDriverNames(); | ||
| } | ||
|
|
||
| public static void ShowControlPanel(string device) | ||
| { | ||
| using (var asio = new AsioOut(device)) | ||
| { | ||
| asio.ShowControlPanel(); | ||
| } | ||
| } | ||
|
|
||
| public static string[] GetChannelNames(string device, ChannelType channelType) | ||
| { | ||
| using (var asio = new AsioOut(device)) | ||
| { | ||
| int count = asio.DriverOutputChannelCount; | ||
| Func<int, string> getName = (i) => asio.AsioOutputChannelName(i); | ||
| if (channelType == ChannelType.Input) | ||
| { | ||
| count = asio.DriverInputChannelCount; | ||
| getName = (i) => asio.AsioInputChannelName(i); | ||
| } | ||
|
|
||
| var nameList = new List<string>(); | ||
| for (int i = 0; i < count; ++i) | ||
| { | ||
| nameList.Add(getName(i)); | ||
| } | ||
| return nameList.ToArray(); | ||
| } | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
|
|
||
| namespace ASIORecAndPlay | ||
| { | ||
| internal struct Mapping | ||
| { | ||
| public int inputChannel; | ||
| public int outputChannel; | ||
| } | ||
|
|
||
| internal class ChannelMapping | ||
| { | ||
| private IDictionary<int, int> channelMapping; | ||
| private object _lock = new object(); | ||
|
|
||
| public IEnumerable<int> InputChannels => channelMapping.Values; | ||
|
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| public IEnumerable<int> OutputChannels => channelMapping.Keys; | ||
|
|
||
| public ChannelMapping() | ||
| { | ||
| channelMapping = new Dictionary<int, int>(); | ||
| } | ||
|
|
||
| public ChannelMapping(IDictionary<int, int> outputInputPairs) | ||
| { | ||
| channelMapping = outputInputPairs; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// While one input can send to various outputs, one output can receive only from one input. | ||
| /// Thus, the output must be unique. | ||
| /// </summary> | ||
| /// <param name="inputChannel">Input channel number</param> | ||
| /// <param name="outputChannel">Output channel number</param> | ||
| /// <returns></returns> | ||
| public bool Add(int inputChannel, int outputChannel) | ||
| { | ||
| try | ||
| { | ||
| lock (_lock) | ||
| { | ||
| channelMapping.Add(outputChannel, inputChannel); | ||
| } | ||
|
|
||
| return true; | ||
| } | ||
| catch | ||
| { | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Remove the mapping to the set output channel. | ||
| /// </summary> | ||
| /// <param name="outputChannel"></param> | ||
| /// <returns></returns> | ||
| public bool Remove(int outputChannel) | ||
| { | ||
| lock (_lock) | ||
| { | ||
| return channelMapping.Remove(outputChannel); | ||
| } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Gets an ordered enumerable of a copy the mapping, ordered by input channel. | ||
| /// </summary> | ||
| /// <returns></returns> | ||
| public IEnumerable<Mapping> GetMappingList() | ||
| { | ||
| lock (_lock) | ||
| { | ||
| return channelMapping | ||
| .Select(e => new Mapping { inputChannel = e.Value, outputChannel = e.Key }) | ||
| .OrderBy(e => e.inputChannel).ToList(); | ||
| } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Gets a copy of the internal dictionary. | ||
| /// </summary> | ||
| /// <returns></returns> | ||
| public IDictionary<int, int> GetMappingDictionary() | ||
| { | ||
| lock (_lock) | ||
| { | ||
| return channelMapping.ToDictionary(e => e.Key, e => e.Value); | ||
| } | ||
| } | ||
| } | ||
| } |
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