c@167: 
c@167: @0xc4b1c6c44c999206;
c@167: 
c@167: using Cxx = import "/capnp/c++.capnp";
c@167: $Cxx.namespace("piper");
c@167: 
c@167: struct Basic {
c@167:     identifier         @0  :Text;
c@167:     name               @1  :Text;
c@167:     description        @2  :Text;
c@167: }
c@167: 
c@167: struct ParameterDescriptor {
c@167:     basic              @0  :Basic;
c@167:     unit               @1  :Text;
c@167:     minValue           @2  :Float32     = 0.0;
c@167:     maxValue           @3  :Float32     = 0.0;
c@167:     defaultValue       @4  :Float32     = 0.0;
c@167:     isQuantized        @5  :Bool        = false;
c@167:     quantizeStep       @6  :Float32     = 0.0;
c@167:     valueNames         @7  :List(Text)  = [];
c@167: }
c@167: 
c@168: enum SampleType {
c@168:     oneSamplePerStep   @0;
c@168:     fixedSampleRate    @1;
c@168:     variableSampleRate @2;
c@168: }
c@168: 
c@167: struct ConfiguredOutputDescriptor {
c@167:     unit               @0  :Text;
c@167:     hasFixedBinCount   @1  :Bool        = false;
c@167:     binCount           @2  :Int32       = 0;
c@167:     binNames           @3  :List(Text)  = [];
c@167:     hasKnownExtents    @4  :Bool        = false;
c@167:     minValue           @5  :Float32     = 0.0;
c@167:     maxValue           @6  :Float32     = 0.0;
c@167:     isQuantized        @7  :Bool        = false;
c@167:     quantizeStep       @8  :Float32     = 0.0;
c@167:     sampleType         @9  :SampleType;
c@167:     sampleRate         @10 :Float32     = 0.0;
c@167:     hasDuration        @11 :Bool        = false;
c@167: }
c@167: 
c@167: struct OutputDescriptor {
c@167:     basic              @0  :Basic;
c@167:     configured         @1  :ConfiguredOutputDescriptor;
c@167: }
c@167: 
c@168: enum InputDomain {
c@168:     timeDomain         @0;
c@168:     frequencyDomain    @1;
c@168: }
c@168: 
c@167: struct ExtractorStaticData {
c@167:     key                @0  :Text;
c@167:     basic              @1  :Basic;
c@167:     maker              @2  :Text;
c@167:     copyright          @3  :Text;
c@167:     version            @4  :Int32;
c@167:     category           @5  :List(Text);
c@167:     minChannelCount    @6  :Int32;
c@167:     maxChannelCount    @7  :Int32;
c@167:     parameters         @8  :List(ParameterDescriptor);
c@167:     programs           @9  :List(Text);
c@167:     inputDomain        @10 :InputDomain;
c@167:     basicOutputInfo    @11 :List(Basic);
c@167: }
c@167: 
c@168: struct RealTime {
c@168:     sec                @0  :Int32       = 0;
c@168:     nsec               @1  :Int32       = 0;
c@168: }
c@168: 
c@167: struct ProcessInput {
c@167:     inputBuffers       @0  :List(List(Float32));
c@167:     timestamp          @1  :RealTime;
c@167: }
c@167: 
c@167: struct Feature {
c@167:     hasTimestamp       @0  :Bool        = false;
c@167:     timestamp          @1  :RealTime;
c@167:     hasDuration        @2  :Bool        = false;
c@167:     duration           @3  :RealTime;
c@167:     label              @4  :Text;
c@167:     featureValues      @5  :List(Float32) = [];
c@167: }
c@167: 
c@167: struct FeatureSet {
c@167:     struct FSPair {
c@167:         output         @0  :Text;
c@167:         features       @1  :List(Feature) = [];
c@167:     }
c@167:     featurePairs       @0  :List(FSPair);
c@167: }
c@167: 
c@167: struct Configuration {
c@167:     struct PVPair {
c@167:         parameter      @0  :Text;
c@167:         value          @1  :Float32;
c@167:     }
c@167:     parameterValues    @0  :List(PVPair);
c@167:     currentProgram     @1  :Text;
c@167:     channelCount       @2  :Int32;
c@167:     stepSize           @3  :Int32;
c@167:     blockSize          @4  :Int32;
c@167: }
c@167: 
c@168: enum AdapterFlag {
c@168:     adaptInputDomain   @0;
c@168:     adaptChannelCount  @1;
c@168:     adaptBufferSize    @2;
c@168: }
c@168: 
c@168: const adaptAllSafe :List(AdapterFlag) =
c@168:       [ adaptInputDomain, adaptChannelCount ];
c@168: 
c@168: const adaptAll :List(AdapterFlag) =
c@168:       [ adaptInputDomain, adaptChannelCount, adaptBufferSize ];
c@168: 
c@167: struct ListRequest {
c@167: }
c@167: 
c@167: struct ListResponse {
c@167:     available          @0  :List(ExtractorStaticData);    
c@167: }
c@167: 
c@167: struct LoadRequest {
c@167:     key                @0  :Text;
c@167:     inputSampleRate    @1  :Float32;
c@167:     adapterFlags       @2  :List(AdapterFlag);
c@167: }
c@167: 
c@167: struct LoadResponse {
c@167:     handle             @0  :Int32;
c@167:     staticData         @1  :ExtractorStaticData;
c@167:     defaultConfiguration @2  :Configuration;
c@167: }
c@167: 
c@167: struct ConfigurationRequest {
c@167:     handle             @0  :Int32;
c@167:     configuration      @1  :Configuration;
c@167: }
c@167: 
c@167: struct ConfigurationResponse {
c@167:     handle             @0  :Int32;
c@167:     outputs            @1  :List(OutputDescriptor);
c@167: }
c@167: 
c@167: struct ProcessRequest {
c@167:     handle             @0  :Int32;
c@167:     processInput       @1  :ProcessInput;
c@167: }
c@167: 
c@167: struct ProcessResponse {
c@167:     handle             @0  :Int32;
c@167:     features           @1  :FeatureSet;
c@167: }
c@167: 
c@167: struct FinishRequest {
c@167:     handle             @0  :Int32;
c@167: }
c@167: 
c@167: struct FinishResponse {
c@167:     handle             @0  :Int32;
c@167:     features           @1  :FeatureSet;
c@167: }
c@167: 
c@167: struct Error {
c@167:     code               @0  :Int32;
c@167:     message            @1  :Text;
c@167: }
c@167: 
c@167: struct RpcRequest {
c@167:     # Request bundle for use when using Cap'n Proto serialisation without
c@168:     # Cap'n Proto RPC layer. For Cap'n Proto RPC, see piper.rpc.capnp.
c@167:     request :union {
c@167: 	list           @0  :ListRequest;
c@167: 	load           @1  :LoadRequest;
c@167: 	configure      @2  :ConfigurationRequest;
c@167: 	process        @3  :ProcessRequest;
c@167: 	finish         @4  :FinishRequest;     # getRemainingFeatures and unload
c@167:     }
c@167: }
c@167: 
c@167: struct RpcResponse {
c@167:     # Response bundle for use when using Cap'n Proto serialisation without
c@168:     # Cap'n Proto RPC layer. For Cap'n Proto RPC, see piper.rpc.capnp.
c@167:     response :union {
c@167:         error          @0  :Error;
c@167: 	list           @1  :ListResponse;
c@167: 	load           @2  :LoadResponse;
c@167: 	configure      @3  :ConfigurationResponse;
c@167: 	process        @4  :ProcessResponse;
c@167: 	finish         @5  :FinishResponse;
c@167:     }
c@167: }
c@167: