Allow customizing analysis settings

ConfusedPolarBear.Plugin.IntroSkipper/Configuration/PluginConfiguration.cs

@@ -14,6 +14,8 @@ public class PluginConfiguration : BasePluginConfiguration
     {
     }
 
+    // ===== Analysis settings =====
+
     /// <summary>
     /// Gets or sets a value indicating whether the episode's fingerprint should be cached to the filesystem.
     /// </summary>
@@ -24,6 +26,18 @@ public class PluginConfiguration : BasePluginConfiguration
     /// </summary>
     public int MaxParallelism { get; set; } = 2;
 
+    /// <summary>
+    /// Gets or sets the percentage of each episode's audio track to analyze.
+    /// </summary>
+    public int AnalysisPercent { get; set; } = 25;
+
+    /// <summary>
+    /// Gets or sets the upper limit (in minutes) on the length of each episode's audio track that will be analyzed.
+    /// </summary>
+    public int AnalysisLengthLimit { get; set; } = 10;
+
+    // ===== Playback settings =====
+
     /// <summary>
     /// Gets or sets a value indicating whether introductions should be automatically skipped.
     /// </summary>

ConfusedPolarBear.Plugin.IntroSkipper/Configuration/configPage.html

@@ -37,6 +37,45 @@
                                 Maximum degree of parallelism to use when analyzing episodes.
                             </div>
                         </div>
+
+                        <details>
+                            <summary>Modify introduction requirements</summary>
+
+                            <div class="inputContainer">
+                                <label class="inputLabel inputLabelUnfocused" for="MaxParallelism">
+                                    Percent of audio to analyze
+                                </label>
+                                <input id="AnalysisPercent" type="number" is="emby-input" min="1" max="90" />
+                                <div class="fieldDescription">
+                                    Analysis will be limited to this percentage of each episode's audio. For example, a
+                                    value of 25 (the default) will limit analysis to the first quarter of each episode.
+                                </div>
+                            </div>
+
+                            <div class="inputContainer">
+                                <label class="inputLabel inputLabelUnfocused" for="MaxParallelism">
+                                    Maximum runtime of audio to analyze (in minutes)
+                                </label>
+                                <input id="AnalysisLengthLimit" type="number" is="emby-input" min="1" />
+                                <div class="fieldDescription">
+                                    Analysis will be limited to this amount of each episode's audio. For example, a
+                                    value of 10 (the default) will limit analysis to the first 10 minutes of each
+                                    episode.
+                                </div>
+                            </div>
+
+                            <p>
+                                The amount of each episode's audio that will be analyzed is determined by these two
+                                settings. The minimum of (episode duration * percent, maximum runtime) is the amount of
+                                audio that will be analyzed. <br />
+
+                                If these settings are changed after analyzing your media, the cached fingerprints and
+                                introduction timestamps for each season you want to analyze with the modified settings
+                                will have to be deleted.
+                            </p>
+
+                            <strong>Increasing these settings will cause episode analysis to take much longer.</strong>
+                        </details>
                     </fieldset>
 
                     <fieldset class="verticalSection-extrabottompadding">
@@ -439,6 +478,9 @@
                         document.querySelector('#AutoSkip').checked = config.AutoSkip;
                         document.querySelector('#MaxParallelism').value = config.MaxParallelism;
 
+                        document.querySelector('#AnalysisPercent').value = config.AnalysisPercent;
+                        document.querySelector('#AnalysisLengthLimit').value = config.AnalysisLengthLimit;
+
                         document.querySelector('#CacheFingerprints').checked = config.CacheFingerprints;
                         document.querySelector('#ShowPromptAdjustment').value = config.ShowPromptAdjustment;
                         document.querySelector('#HidePromptAdjustment').value = config.HidePromptAdjustment;
@@ -454,6 +496,9 @@
                         config.AutoSkip = document.querySelector('#AutoSkip').checked;
                         config.MaxParallelism = document.querySelector('#MaxParallelism').value;
 
+                        config.AnalysisPercent = document.querySelector('#AnalysisPercent').value;
+                        config.AnalysisLengthLimit = document.querySelector('#AnalysisLengthLimit').value;
+
                         config.CacheFingerprints = document.querySelector('#CacheFingerprints').checked;
                         config.ShowPromptAdjustment = document.querySelector("#ShowPromptAdjustment").value;
                         config.HidePromptAdjustment = document.querySelector("#HidePromptAdjustment").value;

ConfusedPolarBear.Plugin.IntroSkipper/QueueManager.cs

@@ -17,6 +17,8 @@ public class QueueManager
     private ILibraryManager _libraryManager;
     private ILogger<QueueManager> _logger;
 
+    private double analysisPercent;
+
     /// <summary>
     /// Initializes a new instance of the <see cref="QueueManager"/> class.
     /// </summary>
@@ -42,6 +44,18 @@ public class QueueManager
 
         Plugin.Instance!.AnalysisQueue.Clear();
 
+        // If analysis settings have been changed from the default, log the modified settings.
+        var config = Plugin.Instance!.Configuration;
+        analysisPercent = Convert.ToDouble(config.AnalysisPercent) / 100;
+
+        if (config.AnalysisLengthLimit != 10 || config.AnalysisPercent != 25)
+        {
+            _logger.LogDebug(
+                "Introduction scan is limited to the first {Percent}% or the first {Minutes} minutes of each episode (whichever is smaller)",
+                config.AnalysisPercent,
+                config.AnalysisLengthLimit);
+        }
+
         // For all TV show libraries, enqueue all contained items.
         foreach (var folder in _libraryManager.GetVirtualFolders())
         {
@@ -132,14 +146,17 @@ public class QueueManager
             Plugin.Instance.AnalysisQueue[episode.SeasonId] = new List<QueuedEpisode>();
         }
 
-        // Only fingerprint up to 25% of the episode and at most 10 minutes.
+        var config = Plugin.Instance!.Configuration;
+
+        // Limit analysis to the first X% of the episode and at most Y minutes.
+        // X and Y default to 25% and 10 minutes.
         var duration = TimeSpan.FromTicks(episode.RunTimeTicks ?? 0).TotalSeconds;
         if (duration >= 5 * 60)
         {
-            duration /= 4;
+            duration *= analysisPercent;
         }
 
-        duration = Math.Min(duration, 10 * 60);
+        duration = Math.Min(duration, 60 * config.AnalysisLengthLimit);
 
         Plugin.Instance.AnalysisQueue[episode.SeasonId].Add(new QueuedEpisode()
         {

README.md

@@ -23,6 +23,7 @@ Plugin versions v0.1.0 and older require `fpcalc` to be installed.
 Show introductions will only be detected if they are:
 
 * Located within the first 25% of an episode, or the first 10 minutes, whichever is smaller
+  * Both of these settings are customizable
 * At least 20 seconds long
 
 ## Step 1: Optional: use the modified web interface