Port MediaEncoding and Api.Playback from 10e57ce8d21b4516733894075001819f3cd6db6b

MediaBrowser.MediaEncoding/Probing/FFProbeHelpers.cs

@@ -0,0 +1,117 @@
+using System;
+using System.Collections.Generic;
+
+namespace MediaBrowser.MediaEncoding.Probing
+{
+    public static class FFProbeHelpers
+    {
+        /// <summary>
+        /// Normalizes the FF probe result.
+        /// </summary>
+        /// <param name="result">The result.</param>
+        public static void NormalizeFFProbeResult(InternalMediaInfoResult result)
+        {
+            if (result == null)
+            {
+                throw new ArgumentNullException("result");
+            }
+
+            if (result.format != null && result.format.tags != null)
+            {
+                result.format.tags = ConvertDictionaryToCaseInSensitive(result.format.tags);
+            }
+
+            if (result.streams != null)
+            {
+                // Convert all dictionaries to case insensitive
+                foreach (var stream in result.streams)
+                {
+                    if (stream.tags != null)
+                    {
+                        stream.tags = ConvertDictionaryToCaseInSensitive(stream.tags);
+                    }
+
+                    if (stream.disposition != null)
+                    {
+                        stream.disposition = ConvertDictionaryToCaseInSensitive(stream.disposition);
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets a string from an FFProbeResult tags dictionary
+        /// </summary>
+        /// <param name="tags">The tags.</param>
+        /// <param name="key">The key.</param>
+        /// <returns>System.String.</returns>
+        public static string GetDictionaryValue(Dictionary<string, string> tags, string key)
+        {
+            if (tags == null)
+            {
+                return null;
+            }
+
+            string val;
+
+            tags.TryGetValue(key, out val);
+            return val;
+        }
+
+        /// <summary>
+        /// Gets an int from an FFProbeResult tags dictionary
+        /// </summary>
+        /// <param name="tags">The tags.</param>
+        /// <param name="key">The key.</param>
+        /// <returns>System.Nullable{System.Int32}.</returns>
+        public static int? GetDictionaryNumericValue(Dictionary<string, string> tags, string key)
+        {
+            var val = GetDictionaryValue(tags, key);
+
+            if (!string.IsNullOrEmpty(val))
+            {
+                int i;
+
+                if (int.TryParse(val, out i))
+                {
+                    return i;
+                }
+            }
+
+            return null;
+        }
+
+        /// <summary>
+        /// Gets a DateTime from an FFProbeResult tags dictionary
+        /// </summary>
+        /// <param name="tags">The tags.</param>
+        /// <param name="key">The key.</param>
+        /// <returns>System.Nullable{DateTime}.</returns>
+        public static DateTime? GetDictionaryDateTime(Dictionary<string, string> tags, string key)
+        {
+            var val = GetDictionaryValue(tags, key);
+
+            if (!string.IsNullOrEmpty(val))
+            {
+                DateTime i;
+
+                if (DateTime.TryParse(val, out i))
+                {
+                    return i.ToUniversalTime();
+                }
+            }
+
+            return null;
+        }
+
+        /// <summary>
+        /// Converts a dictionary to case insensitive
+        /// </summary>
+        /// <param name="dict">The dict.</param>
+        /// <returns>Dictionary{System.StringSystem.String}.</returns>
+        private static Dictionary<string, string> ConvertDictionaryToCaseInSensitive(Dictionary<string, string> dict)
+        {
+            return new Dictionary<string, string>(dict, StringComparer.OrdinalIgnoreCase);
+        }
+    }
+}