示例#1
0
        /// <summary>
        /// A WRAPPER AROUND THE analyser.Analyze(analysisSettings) METHOD
        /// To be called as an executable with command line arguments.
        /// </summary>
        public static void Execute(Arguments arguments)
        {
            Contract.Requires(arguments != null);

            var(analysisSettings, segmentSettings) = arguments.ToAnalysisSettings();
            TimeSpan offsetStart  = TimeSpan.FromSeconds(arguments.Start ?? 0);
            TimeSpan duration     = TimeSpan.FromSeconds(arguments.Duration ?? 0);
            int      resampleRate = ConfigDictionary.GetInt(AnalysisKeys.ResampleRate, analysisSettings.ConfigDict);

            // EXTRACT THE REQUIRED RECORDING SEGMENT
            FileInfo tempF = segmentSettings.SegmentAudioFile;

            if (tempF.Exists)
            {
                tempF.Delete();
            }

            if (duration == TimeSpan.Zero)
            {
                // Process entire file
                AudioFilePreparer.PrepareFile(arguments.Source, tempF, new AudioUtilityRequest {
                    TargetSampleRate = resampleRate
                }, analysisSettings.AnalysisTempDirectoryFallback);
                ////var fiSegment = AudioFilePreparer.PrepareFile(diOutputDir, fiSourceFile, , Human2.RESAMPLE_RATE);
            }
            else
            {
                AudioFilePreparer.PrepareFile(arguments.Source, tempF, new AudioUtilityRequest {
                    TargetSampleRate = resampleRate, OffsetStart = offsetStart, OffsetEnd = offsetStart.Add(duration)
                }, analysisSettings.AnalysisTempDirectoryFallback);
                ////var fiSegmentOfSourceFile = AudioFilePreparer.PrepareFile(diOutputDir, new FileInfo(recordingPath), MediaTypes.MediaTypeWav, TimeSpan.FromMinutes(2), TimeSpan.FromMinutes(3), RESAMPLE_RATE);
            }

            //DO THE ANALYSIS
            // #############################################################################################################################################
            // BROKEN!
            throw new NotImplementedException("Broken in code updates");
            IAnalyser2      analyser = null; //new Rain_OBSOLETE();
            AnalysisResult2 result   = analyser.Analyze <FileInfo>(analysisSettings, null /*broken */);

            /*DataTable dt = result.Data;
             * //#############################################################################################################################################
             *
             * // ADD IN ADDITIONAL INFO TO RESULTS TABLE
             * if (dt != null)
             * {
             *  int iter = 0; // dummy - iteration number would ordinarily be available at this point.
             *  int startMinute = (int)offsetStart.TotalMinutes;
             *  foreach (DataRow row in dt.Rows)
             *  {
             *      row[InitialiseIndexProperties.KEYRankOrder] = iter;
             *      row[InitialiseIndexProperties.KEYStartMinute] = startMinute;
             *      row[InitialiseIndexProperties.KEYSegmentDuration] = result.AudioDuration.TotalSeconds;
             *  }
             *
             *  CsvTools.DataTable2CSV(dt, segmentSettings.SegmentSummaryIndicesFile.FullName);
             *  //DataTableTools.WriteTable2Console(dt);
             * }*/
        }
        /// <summary>
        /// This entrypoint should be used for testing short files (less than 2 minutes)
        /// </summary>
        public static void Execute(Arguments arguments)
        {
            MainEntry.WarnIfDevleoperEntryUsed("EventRecognizer entry does not do any audio maniuplation.");
            Log.Info("Running event recognizer");

            var sourceAudio     = arguments.Source;
            var configFile      = arguments.Config.ToFileInfo();
            var outputDirectory = arguments.Output;

            if (configFile == null)
            {
                throw new FileNotFoundException("No config file argument provided");
            }
            else if (!configFile.Exists)
            {
                Log.Warn($"Config file {configFile.FullName} not found... attempting to resolve config file");
                configFile = ConfigFile.Resolve(configFile.Name, Directory.GetCurrentDirectory().ToDirectoryInfo());
            }

            LoggedConsole.WriteLine("# Recording file:      " + sourceAudio.FullName);
            LoggedConsole.WriteLine("# Configuration file:  " + configFile);
            LoggedConsole.WriteLine("# Output folder:       " + outputDirectory);

            // find an appropriate event IAnalyzer
            IAnalyser2 recognizer = AnalyseLongRecording.FindAndCheckAnalyser <IEventRecognizer>(
                arguments.AnalysisIdentifier,
                configFile.Name);

            Log.Info("Attempting to run recognizer: " + recognizer.Identifier);

            Log.Info("Reading configuration file");
            Config configuration = ConfigFile.Deserialize <RecognizerBase.RecognizerConfig>(configFile);

            // get default settings
            AnalysisSettings analysisSettings = recognizer.DefaultSettings;

            // convert arguments to analysis settings
            analysisSettings = arguments.ToAnalysisSettings(
                analysisSettings,
                outputIntermediate: true,
                resultSubDirectory: recognizer.Identifier,
                configuration: configuration);

            // Enable this if you want the Config file ResampleRate parameter to work.
            // Generally however the ResampleRate should remain at 22050Hz for all recognizers.
            //analysisSettings.AnalysisTargetSampleRate = (int) configuration[AnalysisKeys.ResampleRate];

            // get transform input audio file - if needed
            Log.Info("Querying source audio file");
            var audioUtilityRequest = new AudioUtilityRequest()
            {
                TargetSampleRate = analysisSettings.AnalysisTargetSampleRate,
            };
            var preparedFile = AudioFilePreparer.PrepareFile(
                outputDirectory,
                sourceAudio,
                MediaTypes.MediaTypeWav,
                audioUtilityRequest,
                outputDirectory);

            var source          = preparedFile.SourceInfo.ToSegment();
            var prepared        = preparedFile.TargetInfo.ToSegment(FileSegment.FileDateBehavior.None);
            var segmentSettings = new SegmentSettings <FileInfo>(
                analysisSettings,
                source,
                (analysisSettings.AnalysisOutputDirectory, analysisSettings.AnalysisTempDirectory),
                prepared);

            if (preparedFile.TargetInfo.SampleRate.Value != analysisSettings.AnalysisTargetSampleRate)
            {
                Log.Warn("Input audio sample rate does not match target sample rate");
            }

            // Execute a pre analyzer hook
            recognizer.BeforeAnalyze(analysisSettings);

            // execute actual analysis - output data will be written
            Log.Info("Running recognizer: " + recognizer.Identifier);
            AnalysisResult2 results = recognizer.Analyze(analysisSettings, segmentSettings);

            // run summarize code - output data can be written
            Log.Info("Running recognizer summary: " + recognizer.Identifier);
            recognizer.SummariseResults(
                analysisSettings,
                source,
                results.Events,
                results.SummaryIndices,
                results.SpectralIndices,
                new[] { results });

            //Log.Info("Recognizer run, saving extra results");
            // TODO: Michael, output anything else as you wish.

            Log.Debug("Clean up temporary files");
            if (source.Source.FullName != prepared.Source.FullName)
            {
                prepared.Source.Delete();
            }

            int eventCount = results?.Events?.Length ?? 0;

            Log.Info($"Number of detected events: {eventCount}");
            Log.Success(recognizer.Identifier + " recognizer has completed");
        }