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Diffstat (limited to 'MediaBrowser.Model/Dlna/ResolutionNormalizer.cs')
-rw-r--r--MediaBrowser.Model/Dlna/ResolutionNormalizer.cs97
1 files changed, 0 insertions, 97 deletions
diff --git a/MediaBrowser.Model/Dlna/ResolutionNormalizer.cs b/MediaBrowser.Model/Dlna/ResolutionNormalizer.cs
deleted file mode 100644
index de832314c..000000000
--- a/MediaBrowser.Model/Dlna/ResolutionNormalizer.cs
+++ /dev/null
@@ -1,97 +0,0 @@
-using System;
-using System.Collections.Generic;
-using MediaBrowser.Model.Extensions;
-
-namespace MediaBrowser.Model.Dlna
-{
- public class ResolutionNormalizer
- {
- private static readonly ResolutionConfiguration[] Configurations =
- new []
- {
- new ResolutionConfiguration(426, 320000),
- new ResolutionConfiguration(640, 400000),
- new ResolutionConfiguration(720, 950000),
- new ResolutionConfiguration(1280, 2500000),
- new ResolutionConfiguration(1920, 4000000),
- new ResolutionConfiguration(3840, 35000000)
- };
-
- public static ResolutionOptions Normalize(int? inputBitrate,
- int outputBitrate,
- string inputCodec,
- string outputCodec,
- int? maxWidth,
- int? maxHeight)
- {
- // If the bitrate isn't changing, then don't downlscale the resolution
- if (inputBitrate.HasValue && outputBitrate >= inputBitrate.Value)
- {
- if (maxWidth.HasValue || maxHeight.HasValue)
- {
- return new ResolutionOptions
- {
- MaxWidth = maxWidth,
- MaxHeight = maxHeight
- };
- }
- }
-
- var resolutionConfig = GetResolutionConfiguration(outputBitrate);
- if (resolutionConfig != null)
- {
- var originvalValue = maxWidth;
-
- maxWidth = Math.Min(resolutionConfig.MaxWidth, maxWidth ?? resolutionConfig.MaxWidth);
- if (!originvalValue.HasValue || originvalValue.Value != maxWidth.Value)
- {
- maxHeight = null;
- }
- }
-
- return new ResolutionOptions
- {
- MaxWidth = maxWidth,
- MaxHeight = maxHeight
- };
- }
-
- private static ResolutionConfiguration GetResolutionConfiguration(int outputBitrate)
- {
- ResolutionConfiguration previousOption = null;
-
- foreach (var config in Configurations)
- {
- if (outputBitrate <= config.MaxBitrate)
- {
- return previousOption ?? config;
- }
-
- previousOption = config;
- }
-
- return null;
- }
-
- private static double GetVideoBitrateScaleFactor(string codec)
- {
- if (StringHelper.EqualsIgnoreCase(codec, "h265") ||
- StringHelper.EqualsIgnoreCase(codec, "hevc") ||
- StringHelper.EqualsIgnoreCase(codec, "vp9"))
- {
- return .5;
- }
- return 1;
- }
-
- public static int ScaleBitrate(int bitrate, string inputVideoCodec, string outputVideoCodec)
- {
- var inputScaleFactor = GetVideoBitrateScaleFactor(inputVideoCodec);
- var outputScaleFactor = GetVideoBitrateScaleFactor(outputVideoCodec);
- var scaleFactor = outputScaleFactor/inputScaleFactor;
- var newBitrate = scaleFactor*bitrate;
-
- return Convert.ToInt32(newBitrate);
- }
- }
-}