jellyfin/MediaBrowser.Model/Dlna/ConditionProcessor.cs
2014-04-24 22:45:06 -04:00

201 lines
8.3 KiB
C#

using System;
using System.Globalization;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.MediaInfo;
namespace MediaBrowser.Model.Dlna
{
public class ConditionProcessor
{
public bool IsVideoConditionSatisfied(ProfileCondition condition,
int? audioBitrate,
int? audioChannels,
int? width,
int? height,
int? bitDepth,
int? videoBitrate,
string videoProfile,
double? videoLevel,
double? videoFramerate,
int? packetLength,
TransportStreamTimestamp? timestamp)
{
switch (condition.Property)
{
case ProfileConditionValue.AudioProfile:
// TODO: Implement
return true;
case ProfileConditionValue.Has64BitOffsets:
// TODO: Implement
return true;
case ProfileConditionValue.VideoFramerate:
return IsConditionSatisfied(condition, videoFramerate);
case ProfileConditionValue.VideoLevel:
return IsConditionSatisfied(condition, videoLevel);
case ProfileConditionValue.VideoProfile:
return IsConditionSatisfied(condition, videoProfile);
case ProfileConditionValue.PacketLength:
return IsConditionSatisfied(condition, packetLength);
case ProfileConditionValue.AudioBitrate:
return IsConditionSatisfied(condition, audioBitrate);
case ProfileConditionValue.AudioChannels:
return IsConditionSatisfied(condition, audioChannels);
case ProfileConditionValue.VideoBitDepth:
return IsConditionSatisfied(condition, bitDepth);
case ProfileConditionValue.VideoBitrate:
return IsConditionSatisfied(condition, videoBitrate);
case ProfileConditionValue.Height:
return IsConditionSatisfied(condition, height);
case ProfileConditionValue.Width:
return IsConditionSatisfied(condition, width);
case ProfileConditionValue.VideoTimestamp:
return IsConditionSatisfied(condition, timestamp);
default:
throw new ArgumentException("Unexpected condition on video file: " + condition.Property);
}
}
public bool IsImageConditionSatisfied(ProfileCondition condition, int? width, int? height)
{
switch (condition.Property)
{
case ProfileConditionValue.Height:
return IsConditionSatisfied(condition, height);
case ProfileConditionValue.Width:
return IsConditionSatisfied(condition, width);
default:
throw new ArgumentException("Unexpected condition on image file: " + condition.Property);
}
}
public bool IsAudioConditionSatisfied(ProfileCondition condition, int? audioChannels, int? audioBitrate)
{
switch (condition.Property)
{
case ProfileConditionValue.AudioBitrate:
return IsConditionSatisfied(condition, audioBitrate);
case ProfileConditionValue.AudioChannels:
return IsConditionSatisfied(condition, audioChannels);
default:
throw new ArgumentException("Unexpected condition on audio file: " + condition.Property);
}
}
public bool IsVideoAudioConditionSatisfied(ProfileCondition condition,
int? audioChannels,
int? audioBitrate)
{
switch (condition.Property)
{
case ProfileConditionValue.AudioBitrate:
return IsConditionSatisfied(condition, audioBitrate);
case ProfileConditionValue.AudioChannels:
return IsConditionSatisfied(condition, audioChannels);
default:
throw new ArgumentException("Unexpected condition on audio file: " + condition.Property);
}
}
private static readonly CultureInfo UsCulture = new CultureInfo("en-US");
private bool IsConditionSatisfied(ProfileCondition condition, int? currentValue)
{
if (!currentValue.HasValue)
{
// If the value is unknown, it satisfies if not marked as required
return !condition.IsRequired;
}
int expected;
if (int.TryParse(condition.Value, NumberStyles.Any, UsCulture, out expected))
{
switch (condition.Condition)
{
case ProfileConditionType.Equals:
return currentValue.Value.Equals(expected);
case ProfileConditionType.GreaterThanEqual:
return currentValue.Value >= expected;
case ProfileConditionType.LessThanEqual:
return currentValue.Value <= expected;
case ProfileConditionType.NotEquals:
return !currentValue.Value.Equals(expected);
default:
throw new InvalidOperationException("Unexpected ProfileConditionType");
}
}
return false;
}
private bool IsConditionSatisfied(ProfileCondition condition, string currentValue)
{
if (string.IsNullOrEmpty(currentValue))
{
// If the value is unknown, it satisfies if not marked as required
return !condition.IsRequired;
}
var expected = condition.Value;
switch (condition.Condition)
{
case ProfileConditionType.Equals:
return string.Equals(currentValue, expected, StringComparison.OrdinalIgnoreCase);
case ProfileConditionType.NotEquals:
return !string.Equals(currentValue, expected, StringComparison.OrdinalIgnoreCase);
default:
throw new InvalidOperationException("Unexpected ProfileConditionType");
}
}
private bool IsConditionSatisfied(ProfileCondition condition, double? currentValue)
{
if (!currentValue.HasValue)
{
// If the value is unknown, it satisfies if not marked as required
return !condition.IsRequired;
}
double expected;
if (double.TryParse(condition.Value, NumberStyles.Any, UsCulture, out expected))
{
switch (condition.Condition)
{
case ProfileConditionType.Equals:
return currentValue.Value.Equals(expected);
case ProfileConditionType.GreaterThanEqual:
return currentValue.Value >= expected;
case ProfileConditionType.LessThanEqual:
return currentValue.Value <= expected;
case ProfileConditionType.NotEquals:
return !currentValue.Value.Equals(expected);
default:
throw new InvalidOperationException("Unexpected ProfileConditionType");
}
}
return false;
}
private bool IsConditionSatisfied(ProfileCondition condition, TransportStreamTimestamp? timestamp)
{
if (!timestamp.HasValue)
{
// If the value is unknown, it satisfies if not marked as required
return !condition.IsRequired;
}
var expected = (TransportStreamTimestamp)Enum.Parse(typeof(TransportStreamTimestamp), condition.Value, true);
switch (condition.Condition)
{
case ProfileConditionType.Equals:
return timestamp == expected;
case ProfileConditionType.NotEquals:
return timestamp != expected;
default:
throw new InvalidOperationException("Unexpected ProfileConditionType");
}
}
}
}