jellyfin/MediaBrowser.Model/Dlna/StreamInfo.cs
Erwin de Haan ec1f5dc317 Mayor code cleanup
Add Argument*Exceptions now use proper nameof operators.

Added exception messages to quite a few Argument*Exceptions.

Fixed rethorwing to be proper syntax.

Added a ton of null checkes. (This is only a start, there are about 500 places that need proper null handling)

Added some TODOs to log certain exceptions.

Fix sln again.

Fixed all AssemblyInfo's and added proper copyright (where I could find them)

We live in *current year*.

Fixed the use of braces.

Fixed a ton of properties, and made a fair amount of functions static that should be and can be static.

Made more Methods that should be static static.

You can now use static to find bad functions!

Removed unused variable. And added one more proper XML comment.
2019-01-10 20:38:53 +01:00

1093 lines
37 KiB
C#

using MediaBrowser.Model.Drawing;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Extensions;
using MediaBrowser.Model.MediaInfo;
using MediaBrowser.Model.Session;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
namespace MediaBrowser.Model.Dlna
{
/// <summary>
/// Class StreamInfo.
/// </summary>
public class StreamInfo
{
public StreamInfo()
{
AudioCodecs = Array.Empty<string>();
VideoCodecs = Array.Empty<string>();
SubtitleCodecs = Array.Empty<string>();
TranscodeReasons = Array.Empty<TranscodeReason>();
StreamOptions = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
}
public void SetOption(string qualifier, string name, string value)
{
if (string.IsNullOrEmpty(qualifier))
{
SetOption(name, value);
}
else
{
SetOption(qualifier + "-" + name, value);
}
}
public void SetOption(string name, string value)
{
StreamOptions[name] = value;
}
public string GetOption(string qualifier, string name)
{
var value = GetOption(qualifier + "-" + name);
if (string.IsNullOrEmpty(value))
{
value = GetOption(name);
}
return value;
}
public string GetOption(string name)
{
string value;
if (StreamOptions.TryGetValue(name, out value))
{
return value;
}
return null;
}
public Guid ItemId { get; set; }
public PlayMethod PlayMethod { get; set; }
public EncodingContext Context { get; set; }
public DlnaProfileType MediaType { get; set; }
public string Container { get; set; }
public string SubProtocol { get; set; }
public long StartPositionTicks { get; set; }
public int? SegmentLength { get; set; }
public int? MinSegments { get; set; }
public bool BreakOnNonKeyFrames { get; set; }
public bool RequireAvc { get; set; }
public bool RequireNonAnamorphic { get; set; }
public bool CopyTimestamps { get; set; }
public bool EnableMpegtsM2TsMode { get; set; }
public bool EnableSubtitlesInManifest { get; set; }
public string[] AudioCodecs { get; set; }
public string[] VideoCodecs { get; set; }
public int? AudioStreamIndex { get; set; }
public int? SubtitleStreamIndex { get; set; }
public int? TranscodingMaxAudioChannels { get; set; }
public int? GlobalMaxAudioChannels { get; set; }
public int? AudioBitrate { get; set; }
public int? VideoBitrate { get; set; }
public int? MaxWidth { get; set; }
public int? MaxHeight { get; set; }
public float? MaxFramerate { get; set; }
public DeviceProfile DeviceProfile { get; set; }
public string DeviceProfileId { get; set; }
public string DeviceId { get; set; }
public long? RunTimeTicks { get; set; }
public TranscodeSeekInfo TranscodeSeekInfo { get; set; }
public bool EstimateContentLength { get; set; }
public MediaSourceInfo MediaSource { get; set; }
public string[] SubtitleCodecs { get; set; }
public SubtitleDeliveryMethod SubtitleDeliveryMethod { get; set; }
public string SubtitleFormat { get; set; }
public string PlaySessionId { get; set; }
public TranscodeReason[] TranscodeReasons { get; set; }
public Dictionary<string, string> StreamOptions { get; private set; }
public string MediaSourceId
{
get
{
return MediaSource == null ? null : MediaSource.Id;
}
}
public bool IsDirectStream
{
get
{
return PlayMethod == PlayMethod.DirectStream ||
PlayMethod == PlayMethod.DirectPlay;
}
}
public string ToUrl(string baseUrl, string accessToken)
{
if (PlayMethod == PlayMethod.DirectPlay)
{
return MediaSource.Path;
}
if (string.IsNullOrEmpty(baseUrl))
{
throw new ArgumentNullException(nameof(baseUrl));
}
List<string> list = new List<string>();
foreach (NameValuePair pair in BuildParams(this, accessToken))
{
if (string.IsNullOrEmpty(pair.Value))
{
continue;
}
// Try to keep the url clean by omitting defaults
if (StringHelper.EqualsIgnoreCase(pair.Name, "StartTimeTicks") &&
StringHelper.EqualsIgnoreCase(pair.Value, "0"))
{
continue;
}
if (StringHelper.EqualsIgnoreCase(pair.Name, "SubtitleStreamIndex") &&
StringHelper.EqualsIgnoreCase(pair.Value, "-1"))
{
continue;
}
if (StringHelper.EqualsIgnoreCase(pair.Name, "Static") &&
StringHelper.EqualsIgnoreCase(pair.Value, "false"))
{
continue;
}
var encodedValue = pair.Value.Replace(" ", "%20");
list.Add(string.Format("{0}={1}", pair.Name, encodedValue));
}
string queryString = string.Join("&", list.ToArray());
return GetUrl(baseUrl, queryString);
}
private string GetUrl(string baseUrl, string queryString)
{
if (string.IsNullOrEmpty(baseUrl))
{
throw new ArgumentNullException(nameof(baseUrl));
}
string extension = string.IsNullOrEmpty(Container) ? string.Empty : "." + Container;
baseUrl = baseUrl.TrimEnd('/');
if (MediaType == DlnaProfileType.Audio)
{
if (StringHelper.EqualsIgnoreCase(SubProtocol, "hls"))
{
return string.Format("{0}/audio/{1}/master.m3u8?{2}", baseUrl, ItemId, queryString);
}
return string.Format("{0}/audio/{1}/stream{2}?{3}", baseUrl, ItemId, extension, queryString);
}
if (StringHelper.EqualsIgnoreCase(SubProtocol, "hls"))
{
return string.Format("{0}/videos/{1}/master.m3u8?{2}", baseUrl, ItemId, queryString);
}
return string.Format("{0}/videos/{1}/stream{2}?{3}", baseUrl, ItemId, extension, queryString);
}
private static List<NameValuePair> BuildParams(StreamInfo item, string accessToken)
{
List<NameValuePair> list = new List<NameValuePair>();
string audioCodecs = item.AudioCodecs.Length == 0 ?
string.Empty :
string.Join(",", item.AudioCodecs);
string videoCodecs = item.VideoCodecs.Length == 0 ?
string.Empty :
string.Join(",", item.VideoCodecs);
list.Add(new NameValuePair("DeviceProfileId", item.DeviceProfileId ?? string.Empty));
list.Add(new NameValuePair("DeviceId", item.DeviceId ?? string.Empty));
list.Add(new NameValuePair("MediaSourceId", item.MediaSourceId ?? string.Empty));
list.Add(new NameValuePair("Static", item.IsDirectStream.ToString().ToLower()));
list.Add(new NameValuePair("VideoCodec", videoCodecs));
list.Add(new NameValuePair("AudioCodec", audioCodecs));
list.Add(new NameValuePair("AudioStreamIndex", item.AudioStreamIndex.HasValue ? item.AudioStreamIndex.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
list.Add(new NameValuePair("SubtitleStreamIndex", item.SubtitleStreamIndex.HasValue && item.SubtitleDeliveryMethod != SubtitleDeliveryMethod.External ? item.SubtitleStreamIndex.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
list.Add(new NameValuePair("VideoBitrate", item.VideoBitrate.HasValue ? item.VideoBitrate.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
list.Add(new NameValuePair("AudioBitrate", item.AudioBitrate.HasValue ? item.AudioBitrate.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
list.Add(new NameValuePair("MaxFramerate", item.MaxFramerate.HasValue ? item.MaxFramerate.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
list.Add(new NameValuePair("MaxWidth", item.MaxWidth.HasValue ? item.MaxWidth.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
list.Add(new NameValuePair("MaxHeight", item.MaxHeight.HasValue ? item.MaxHeight.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
long startPositionTicks = item.StartPositionTicks;
var isHls = StringHelper.EqualsIgnoreCase(item.SubProtocol, "hls");
if (isHls)
{
list.Add(new NameValuePair("StartTimeTicks", string.Empty));
}
else
{
list.Add(new NameValuePair("StartTimeTicks", startPositionTicks.ToString(CultureInfo.InvariantCulture)));
}
list.Add(new NameValuePair("PlaySessionId", item.PlaySessionId ?? string.Empty));
list.Add(new NameValuePair("api_key", accessToken ?? string.Empty));
string liveStreamId = item.MediaSource == null ? null : item.MediaSource.LiveStreamId;
list.Add(new NameValuePair("LiveStreamId", liveStreamId ?? string.Empty));
list.Add(new NameValuePair("SubtitleMethod", item.SubtitleStreamIndex.HasValue && item.SubtitleDeliveryMethod != SubtitleDeliveryMethod.External ? item.SubtitleDeliveryMethod.ToString() : string.Empty));
if (!item.IsDirectStream)
{
if (item.RequireNonAnamorphic)
{
list.Add(new NameValuePair("RequireNonAnamorphic", item.RequireNonAnamorphic.ToString().ToLower()));
}
list.Add(new NameValuePair("TranscodingMaxAudioChannels", item.TranscodingMaxAudioChannels.HasValue ? item.TranscodingMaxAudioChannels.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
if (item.EnableSubtitlesInManifest)
{
list.Add(new NameValuePair("EnableSubtitlesInManifest", item.EnableSubtitlesInManifest.ToString().ToLower()));
}
if (item.EnableMpegtsM2TsMode)
{
list.Add(new NameValuePair("EnableMpegtsM2TsMode", item.EnableMpegtsM2TsMode.ToString().ToLower()));
}
if (item.EstimateContentLength)
{
list.Add(new NameValuePair("EstimateContentLength", item.EstimateContentLength.ToString().ToLower()));
}
if (item.TranscodeSeekInfo != TranscodeSeekInfo.Auto)
{
list.Add(new NameValuePair("TranscodeSeekInfo", item.TranscodeSeekInfo.ToString().ToLower()));
}
if (item.CopyTimestamps)
{
list.Add(new NameValuePair("CopyTimestamps", item.CopyTimestamps.ToString().ToLower()));
}
list.Add(new NameValuePair("RequireAvc", item.RequireAvc.ToString().ToLower()));
}
list.Add(new NameValuePair("Tag", item.MediaSource.ETag ?? string.Empty));
string subtitleCodecs = item.SubtitleCodecs.Length == 0 ?
string.Empty :
string.Join(",", item.SubtitleCodecs);
list.Add(new NameValuePair("SubtitleCodec", item.SubtitleStreamIndex.HasValue && item.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Embed ? subtitleCodecs : string.Empty));
if (isHls)
{
list.Add(new NameValuePair("SegmentContainer", item.Container ?? string.Empty));
if (item.SegmentLength.HasValue)
{
list.Add(new NameValuePair("SegmentLength", item.SegmentLength.Value.ToString(CultureInfo.InvariantCulture)));
}
if (item.MinSegments.HasValue)
{
list.Add(new NameValuePair("MinSegments", item.MinSegments.Value.ToString(CultureInfo.InvariantCulture)));
}
list.Add(new NameValuePair("BreakOnNonKeyFrames", item.BreakOnNonKeyFrames.ToString()));
}
foreach (var pair in item.StreamOptions)
{
if (string.IsNullOrEmpty(pair.Value))
{
continue;
}
// strip spaces to avoid having to encode h264 profile names
list.Add(new NameValuePair(pair.Key, pair.Value.Replace(" ", "")));
}
if (!item.IsDirectStream)
{
list.Add(new NameValuePair("TranscodeReasons", string.Join(",", item.TranscodeReasons.Distinct().Select(i => i.ToString()).ToArray())));
}
return list;
}
public List<SubtitleStreamInfo> GetExternalSubtitles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, string baseUrl, string accessToken)
{
return GetExternalSubtitles(transcoderSupport, includeSelectedTrackOnly, false, baseUrl, accessToken);
}
public List<SubtitleStreamInfo> GetExternalSubtitles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, bool enableAllProfiles, string baseUrl, string accessToken)
{
List<SubtitleStreamInfo> list = GetSubtitleProfiles(transcoderSupport, includeSelectedTrackOnly, enableAllProfiles, baseUrl, accessToken);
List<SubtitleStreamInfo> newList = new List<SubtitleStreamInfo>();
// First add the selected track
foreach (SubtitleStreamInfo stream in list)
{
if (stream.DeliveryMethod == SubtitleDeliveryMethod.External)
{
newList.Add(stream);
}
}
return newList;
}
public List<SubtitleStreamInfo> GetSubtitleProfiles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, string baseUrl, string accessToken)
{
return GetSubtitleProfiles(transcoderSupport, includeSelectedTrackOnly, false, baseUrl, accessToken);
}
public List<SubtitleStreamInfo> GetSubtitleProfiles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, bool enableAllProfiles, string baseUrl, string accessToken)
{
List<SubtitleStreamInfo> list = new List<SubtitleStreamInfo>();
// HLS will preserve timestamps so we can just grab the full subtitle stream
long startPositionTicks = StringHelper.EqualsIgnoreCase(SubProtocol, "hls")
? 0
: (PlayMethod == PlayMethod.Transcode && !CopyTimestamps ? StartPositionTicks : 0);
// First add the selected track
if (SubtitleStreamIndex.HasValue)
{
foreach (MediaStream stream in MediaSource.MediaStreams)
{
if (stream.Type == MediaStreamType.Subtitle && stream.Index == SubtitleStreamIndex.Value)
{
AddSubtitleProfiles(list, stream, transcoderSupport, enableAllProfiles, baseUrl, accessToken, startPositionTicks);
}
}
}
if (!includeSelectedTrackOnly)
{
foreach (MediaStream stream in MediaSource.MediaStreams)
{
if (stream.Type == MediaStreamType.Subtitle && (!SubtitleStreamIndex.HasValue || stream.Index != SubtitleStreamIndex.Value))
{
AddSubtitleProfiles(list, stream, transcoderSupport, enableAllProfiles, baseUrl, accessToken, startPositionTicks);
}
}
}
return list;
}
private void AddSubtitleProfiles(List<SubtitleStreamInfo> list, MediaStream stream, ITranscoderSupport transcoderSupport, bool enableAllProfiles, string baseUrl, string accessToken, long startPositionTicks)
{
if (enableAllProfiles)
{
foreach (SubtitleProfile profile in DeviceProfile.SubtitleProfiles)
{
SubtitleStreamInfo info = GetSubtitleStreamInfo(stream, baseUrl, accessToken, startPositionTicks, new[] { profile }, transcoderSupport);
list.Add(info);
}
}
else
{
SubtitleStreamInfo info = GetSubtitleStreamInfo(stream, baseUrl, accessToken, startPositionTicks, DeviceProfile.SubtitleProfiles, transcoderSupport);
list.Add(info);
}
}
private SubtitleStreamInfo GetSubtitleStreamInfo(MediaStream stream, string baseUrl, string accessToken, long startPositionTicks, SubtitleProfile[] subtitleProfiles, ITranscoderSupport transcoderSupport)
{
SubtitleProfile subtitleProfile = StreamBuilder.GetSubtitleProfile(MediaSource, stream, subtitleProfiles, PlayMethod, transcoderSupport, Container, SubProtocol);
SubtitleStreamInfo info = new SubtitleStreamInfo
{
IsForced = stream.IsForced,
Language = stream.Language,
Name = stream.Language ?? "Unknown",
Format = subtitleProfile.Format,
Index = stream.Index,
DeliveryMethod = subtitleProfile.Method,
DisplayTitle = stream.DisplayTitle
};
if (info.DeliveryMethod == SubtitleDeliveryMethod.External)
{
if (MediaSource.Protocol == MediaProtocol.File || !StringHelper.EqualsIgnoreCase(stream.Codec, subtitleProfile.Format) || !stream.IsExternal)
{
info.Url = string.Format("{0}/Videos/{1}/{2}/Subtitles/{3}/{4}/Stream.{5}",
baseUrl,
ItemId,
MediaSourceId,
stream.Index.ToString(CultureInfo.InvariantCulture),
startPositionTicks.ToString(CultureInfo.InvariantCulture),
subtitleProfile.Format);
if (!string.IsNullOrEmpty(accessToken))
{
info.Url += "?api_key=" + accessToken;
}
info.IsExternalUrl = false;
}
else
{
info.Url = stream.Path;
info.IsExternalUrl = true;
}
}
return info;
}
/// <summary>
/// Returns the audio stream that will be used
/// </summary>
public MediaStream TargetAudioStream
{
get
{
if (MediaSource != null)
{
return MediaSource.GetDefaultAudioStream(AudioStreamIndex);
}
return null;
}
}
/// <summary>
/// Returns the video stream that will be used
/// </summary>
public MediaStream TargetVideoStream
{
get
{
if (MediaSource != null)
{
return MediaSource.VideoStream;
}
return null;
}
}
/// <summary>
/// Predicts the audio sample rate that will be in the output stream
/// </summary>
public int? TargetAudioSampleRate
{
get
{
MediaStream stream = TargetAudioStream;
return stream == null ? null : stream.SampleRate;
}
}
/// <summary>
/// Predicts the audio sample rate that will be in the output stream
/// </summary>
public int? TargetAudioBitDepth
{
get
{
if (IsDirectStream)
{
return TargetAudioStream == null ? (int?)null : TargetAudioStream.BitDepth;
}
var targetAudioCodecs = TargetAudioCodec;
var audioCodec = targetAudioCodecs.Length == 0 ? null : targetAudioCodecs[0];
if (!string.IsNullOrEmpty(audioCodec))
{
return GetTargetAudioBitDepth(audioCodec);
}
return TargetAudioStream == null ? (int?)null : TargetAudioStream.BitDepth;
}
}
/// <summary>
/// Predicts the audio sample rate that will be in the output stream
/// </summary>
public int? TargetVideoBitDepth
{
get
{
if (IsDirectStream)
{
return TargetVideoStream == null ? (int?)null : TargetVideoStream.BitDepth;
}
var targetVideoCodecs = TargetVideoCodec;
var videoCodec = targetVideoCodecs.Length == 0 ? null : targetVideoCodecs[0];
if (!string.IsNullOrEmpty(videoCodec))
{
return GetTargetVideoBitDepth(videoCodec);
}
return TargetVideoStream == null ? (int?)null : TargetVideoStream.BitDepth;
}
}
/// <summary>
/// Gets the target reference frames.
/// </summary>
/// <value>The target reference frames.</value>
public int? TargetRefFrames
{
get
{
if (IsDirectStream)
{
return TargetVideoStream == null ? (int?)null : TargetVideoStream.RefFrames;
}
var targetVideoCodecs = TargetVideoCodec;
var videoCodec = targetVideoCodecs.Length == 0 ? null : targetVideoCodecs[0];
if (!string.IsNullOrEmpty(videoCodec))
{
return GetTargetRefFrames(videoCodec);
}
return TargetVideoStream == null ? (int?)null : TargetVideoStream.RefFrames;
}
}
/// <summary>
/// Predicts the audio sample rate that will be in the output stream
/// </summary>
public float? TargetFramerate
{
get
{
MediaStream stream = TargetVideoStream;
return MaxFramerate.HasValue && !IsDirectStream
? MaxFramerate
: stream == null ? null : stream.AverageFrameRate ?? stream.RealFrameRate;
}
}
/// <summary>
/// Predicts the audio sample rate that will be in the output stream
/// </summary>
public double? TargetVideoLevel
{
get
{
if (IsDirectStream)
{
return TargetVideoStream == null ? (double?)null : TargetVideoStream.Level;
}
var targetVideoCodecs = TargetVideoCodec;
var videoCodec = targetVideoCodecs.Length == 0 ? null : targetVideoCodecs[0];
if (!string.IsNullOrEmpty(videoCodec))
{
return GetTargetVideoLevel(videoCodec);
}
return TargetVideoStream == null ? (double?)null : TargetVideoStream.Level;
}
}
public int? GetTargetVideoBitDepth(string codec)
{
var value = GetOption(codec, "videobitdepth");
if (string.IsNullOrEmpty(value))
{
return null;
}
int result;
if (int.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out result))
{
return result;
}
return null;
}
public int? GetTargetAudioBitDepth(string codec)
{
var value = GetOption(codec, "audiobitdepth");
if (string.IsNullOrEmpty(value))
{
return null;
}
int result;
if (int.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out result))
{
return result;
}
return null;
}
public double? GetTargetVideoLevel(string codec)
{
var value = GetOption(codec, "level");
if (string.IsNullOrEmpty(value))
{
return null;
}
double result;
if (double.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out result))
{
return result;
}
return null;
}
public int? GetTargetRefFrames(string codec)
{
var value = GetOption(codec, "maxrefframes");
if (string.IsNullOrEmpty(value))
{
return null;
}
int result;
if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out result))
{
return result;
}
return null;
}
/// <summary>
/// Predicts the audio sample rate that will be in the output stream
/// </summary>
public int? TargetPacketLength
{
get
{
MediaStream stream = TargetVideoStream;
return !IsDirectStream
? null
: stream == null ? null : stream.PacketLength;
}
}
/// <summary>
/// Predicts the audio sample rate that will be in the output stream
/// </summary>
public string TargetVideoProfile
{
get
{
if (IsDirectStream)
{
return TargetVideoStream == null ? null : TargetVideoStream.Profile;
}
var targetVideoCodecs = TargetVideoCodec;
var videoCodec = targetVideoCodecs.Length == 0 ? null : targetVideoCodecs[0];
if (!string.IsNullOrEmpty(videoCodec))
{
return GetOption(videoCodec, "profile");
}
return TargetVideoStream == null ? null : TargetVideoStream.Profile;
}
}
/// <summary>
/// Gets the target video codec tag.
/// </summary>
/// <value>The target video codec tag.</value>
public string TargetVideoCodecTag
{
get
{
MediaStream stream = TargetVideoStream;
return !IsDirectStream
? null
: stream == null ? null : stream.CodecTag;
}
}
/// <summary>
/// Predicts the audio bitrate that will be in the output stream
/// </summary>
public int? TargetAudioBitrate
{
get
{
MediaStream stream = TargetAudioStream;
return AudioBitrate.HasValue && !IsDirectStream
? AudioBitrate
: stream == null ? null : stream.BitRate;
}
}
/// <summary>
/// Predicts the audio channels that will be in the output stream
/// </summary>
public int? TargetAudioChannels
{
get
{
if (IsDirectStream)
{
return TargetAudioStream == null ? (int?)null : TargetAudioStream.Channels;
}
var targetAudioCodecs = TargetAudioCodec;
var codec = targetAudioCodecs.Length == 0 ? null : targetAudioCodecs[0];
if (!string.IsNullOrEmpty(codec))
{
return GetTargetRefFrames(codec);
}
return TargetAudioStream == null ? (int?)null : TargetAudioStream.Channels;
}
}
public int? GetTargetAudioChannels(string codec)
{
var defaultValue = GlobalMaxAudioChannels;
var value = GetOption(codec, "audiochannels");
if (string.IsNullOrEmpty(value))
{
return defaultValue;
}
int result;
if (int.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out result))
{
return Math.Min(result, defaultValue ?? result);
}
return defaultValue;
}
/// <summary>
/// Predicts the audio codec that will be in the output stream
/// </summary>
public string[] TargetAudioCodec
{
get
{
MediaStream stream = TargetAudioStream;
string inputCodec = stream == null ? null : stream.Codec;
if (IsDirectStream)
{
return string.IsNullOrEmpty(inputCodec) ? new string[] { } : new[] { inputCodec };
}
foreach (string codec in AudioCodecs)
{
if (StringHelper.EqualsIgnoreCase(codec, inputCodec))
{
return string.IsNullOrEmpty(codec) ? new string[] { } : new[] { codec };
}
}
return AudioCodecs;
}
}
public string[] TargetVideoCodec
{
get
{
MediaStream stream = TargetVideoStream;
string inputCodec = stream == null ? null : stream.Codec;
if (IsDirectStream)
{
return string.IsNullOrEmpty(inputCodec) ? new string[] { } : new[] { inputCodec };
}
foreach (string codec in VideoCodecs)
{
if (StringHelper.EqualsIgnoreCase(codec, inputCodec))
{
return string.IsNullOrEmpty(codec) ? new string[] { } : new[] { codec };
}
}
return VideoCodecs;
}
}
/// <summary>
/// Predicts the audio channels that will be in the output stream
/// </summary>
public long? TargetSize
{
get
{
if (IsDirectStream)
{
return MediaSource.Size;
}
if (RunTimeTicks.HasValue)
{
int? totalBitrate = TargetTotalBitrate;
double totalSeconds = RunTimeTicks.Value;
// Convert to ms
totalSeconds /= 10000;
// Convert to seconds
totalSeconds /= 1000;
return totalBitrate.HasValue ?
Convert.ToInt64(totalBitrate.Value * totalSeconds) :
(long?)null;
}
return null;
}
}
public int? TargetVideoBitrate
{
get
{
MediaStream stream = TargetVideoStream;
return VideoBitrate.HasValue && !IsDirectStream
? VideoBitrate
: stream == null ? null : stream.BitRate;
}
}
public TransportStreamTimestamp TargetTimestamp
{
get
{
TransportStreamTimestamp defaultValue = StringHelper.EqualsIgnoreCase(Container, "m2ts")
? TransportStreamTimestamp.Valid
: TransportStreamTimestamp.None;
return !IsDirectStream
? defaultValue
: MediaSource == null ? defaultValue : MediaSource.Timestamp ?? TransportStreamTimestamp.None;
}
}
public int? TargetTotalBitrate
{
get
{
return (TargetAudioBitrate ?? 0) + (TargetVideoBitrate ?? 0);
}
}
public bool? IsTargetAnamorphic
{
get
{
if (IsDirectStream)
{
return TargetVideoStream == null ? null : TargetVideoStream.IsAnamorphic;
}
return false;
}
}
public bool? IsTargetInterlaced
{
get
{
if (IsDirectStream)
{
return TargetVideoStream == null ? (bool?)null : TargetVideoStream.IsInterlaced;
}
var targetVideoCodecs = TargetVideoCodec;
var videoCodec = targetVideoCodecs.Length == 0 ? null : targetVideoCodecs[0];
if (!string.IsNullOrEmpty(videoCodec))
{
if (string.Equals(GetOption(videoCodec, "deinterlace"), "true", StringComparison.OrdinalIgnoreCase))
{
return false;
}
}
return TargetVideoStream == null ? (bool?)null : TargetVideoStream.IsInterlaced;
}
}
public bool? IsTargetAVC
{
get
{
if (IsDirectStream)
{
return TargetVideoStream == null ? null : TargetVideoStream.IsAVC;
}
return true;
}
}
public int? TargetWidth
{
get
{
MediaStream videoStream = TargetVideoStream;
if (videoStream != null && videoStream.Width.HasValue && videoStream.Height.HasValue)
{
ImageSize size = new ImageSize
{
Width = videoStream.Width.Value,
Height = videoStream.Height.Value
};
double? maxWidth = MaxWidth.HasValue ? (double)MaxWidth.Value : (double?)null;
double? maxHeight = MaxHeight.HasValue ? (double)MaxHeight.Value : (double?)null;
ImageSize newSize = DrawingUtils.Resize(size,
0,
0,
maxWidth ?? 0,
maxHeight ?? 0);
return Convert.ToInt32(newSize.Width);
}
return MaxWidth;
}
}
public int? TargetHeight
{
get
{
MediaStream videoStream = TargetVideoStream;
if (videoStream != null && videoStream.Width.HasValue && videoStream.Height.HasValue)
{
ImageSize size = new ImageSize
{
Width = videoStream.Width.Value,
Height = videoStream.Height.Value
};
double? maxWidth = MaxWidth.HasValue ? (double)MaxWidth.Value : (double?)null;
double? maxHeight = MaxHeight.HasValue ? (double)MaxHeight.Value : (double?)null;
ImageSize newSize = DrawingUtils.Resize(size,
0,
0,
maxWidth ?? 0,
maxHeight ?? 0);
return Convert.ToInt32(newSize.Height);
}
return MaxHeight;
}
}
public int? TargetVideoStreamCount
{
get
{
if (IsDirectStream)
{
return GetMediaStreamCount(MediaStreamType.Video, int.MaxValue);
}
return GetMediaStreamCount(MediaStreamType.Video, 1);
}
}
public int? TargetAudioStreamCount
{
get
{
if (IsDirectStream)
{
return GetMediaStreamCount(MediaStreamType.Audio, int.MaxValue);
}
return GetMediaStreamCount(MediaStreamType.Audio, 1);
}
}
private int? GetMediaStreamCount(MediaStreamType type, int limit)
{
var count = MediaSource.GetStreamCount(type);
if (count.HasValue)
{
count = Math.Min(count.Value, limit);
}
return count;
}
public List<MediaStream> GetSelectableAudioStreams()
{
return GetSelectableStreams(MediaStreamType.Audio);
}
public List<MediaStream> GetSelectableSubtitleStreams()
{
return GetSelectableStreams(MediaStreamType.Subtitle);
}
public List<MediaStream> GetSelectableStreams(MediaStreamType type)
{
List<MediaStream> list = new List<MediaStream>();
foreach (MediaStream stream in MediaSource.MediaStreams)
{
if (type == stream.Type)
{
list.Add(stream);
}
}
return list;
}
}
}