starred/jellyfin-jellyfin-1
1
0
Fork 0
mirror of https://github.com/jellyfin/jellyfin.git synced 2025-12-17 06:23:03 +03:00
Code Issues Packages Projects Releases Wiki Activity

Migrate AudioService to Jellyfin.Api

Browse Source
This commit is contained in:
David
2020-07-11 11:14:23 +02:00
parent 2eef7d4913
commit 2328ec59c9
4 changed files with 577 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

194
Jellyfin.Api/Helpers/StreamingHelpers.cs Normal file
View File

@@ -0,0 +1,194 @@
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using Jellyfin.Api.Models;
using MediaBrowser.Controller.Dlna;
using MediaBrowser.Model.Dlna;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Primitives;
namespace Jellyfin.Api.Helpers
{
/// <summary>
/// The streaming helpers
/// </summary>
public class StreamingHelpers
{
/// <summary>
/// Adds the dlna headers.
/// </summary>
/// <param name="state">The state.</param>
/// <param name="responseHeaders">The response headers.</param>
/// <param name="isStaticallyStreamed">if set to <c>true</c> [is statically streamed].</param>
/// <param name="request">The <see cref="HttpRequest"/>.</param>
/// <param name="dlnaManager">Instance of the <see cref="IDlnaManager"/> interface.</param>
public static void AddDlnaHeaders(
StreamState state,
IHeaderDictionary responseHeaders,
bool isStaticallyStreamed,
HttpRequest request,
IDlnaManager dlnaManager)
{
if (!state.EnableDlnaHeaders)
{
return;
}
var profile = state.DeviceProfile;
StringValues transferMode = request.Headers["transferMode.dlna.org"];
responseHeaders.Add("transferMode.dlna.org", string.IsNullOrEmpty(transferMode) ? "Streaming" : transferMode.ToString());
responseHeaders.Add("realTimeInfo.dlna.org", "DLNA.ORG_TLAG=*");
if (state.RunTimeTicks.HasValue)
{
if (string.Equals(request.Headers["getMediaInfo.sec"], "1", StringComparison.OrdinalIgnoreCase))
{
var ms = TimeSpan.FromTicks(state.RunTimeTicks.Value).TotalMilliseconds;
responseHeaders.Add("MediaInfo.sec", string.Format(
CultureInfo.InvariantCulture,
"SEC_Duration={0};",
Convert.ToInt32(ms)));
}
if (!isStaticallyStreamed && profile != null)
{
AddTimeSeekResponseHeaders(state, responseHeaders);
}
}
if (profile == null)
{
profile = dlnaManager.GetDefaultProfile();
}
var audioCodec = state.ActualOutputAudioCodec;
if (state.VideoRequest == null)
{
responseHeaders.Add("contentFeatures.dlna.org", new ContentFeatureBuilder(profile).BuildAudioHeader(
state.OutputContainer,
audioCodec,
state.OutputAudioBitrate,
state.OutputAudioSampleRate,
state.OutputAudioChannels,
state.OutputAudioBitDepth,
isStaticallyStreamed,
state.RunTimeTicks,
state.TranscodeSeekInfo));
}
else
{
var videoCodec = state.ActualOutputVideoCodec;
responseHeaders.Add("contentFeatures.dlna.org", new ContentFeatureBuilder(profile).BuildVideoHeader(
state.OutputContainer,
videoCodec,
audioCodec,
state.OutputWidth,
state.OutputHeight,
state.TargetVideoBitDepth,
state.OutputVideoBitrate,
state.TargetTimestamp,
isStaticallyStreamed,
state.RunTimeTicks,
state.TargetVideoProfile,
state.TargetVideoLevel,
state.TargetFramerate,
state.TargetPacketLength,
state.TranscodeSeekInfo,
state.IsTargetAnamorphic,
state.IsTargetInterlaced,
state.TargetRefFrames,
state.TargetVideoStreamCount,
state.TargetAudioStreamCount,
state.TargetVideoCodecTag,
state.IsTargetAVC).FirstOrDefault() ?? string.Empty);
}
}
/// <summary>
/// Parses the dlna headers.
/// </summary>
/// <param name="startTimeTicks">The start time ticks.</param>
/// <param name="request">The <see cref="HttpRequest"/>.</param>
public void ParseDlnaHeaders(long? startTimeTicks, HttpRequest request)
{
if (!startTimeTicks.HasValue)
{
var timeSeek = request.Headers["TimeSeekRange.dlna.org"];
startTimeTicks = ParseTimeSeekHeader(timeSeek);
}
}
/// <summary>
/// Parses the time seek header.
/// </summary>
public long? ParseTimeSeekHeader(string value)
{
if (string.IsNullOrWhiteSpace(value))
{
return null;
}
const string Npt = "npt=";
if (!value.StartsWith(Npt, StringComparison.OrdinalIgnoreCase))
{
throw new ArgumentException("Invalid timeseek header");
}
int index = value.IndexOf('-');
value = index == -1
? value.Substring(Npt.Length)
: value.Substring(Npt.Length, index - Npt.Length);
if (value.IndexOf(':') == -1)
{
// Parses npt times in the format of '417.33'
if (double.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var seconds))
{
return TimeSpan.FromSeconds(seconds).Ticks;
}
throw new ArgumentException("Invalid timeseek header");
}
// Parses npt times in the format of '10:19:25.7'
var tokens = value.Split(new[] { ':' }, 3);
double secondsSum = 0;
var timeFactor = 3600;
foreach (var time in tokens)
{
if (double.TryParse(time, NumberStyles.Any, CultureInfo.InvariantCulture, out var digit))
{
secondsSum += digit * timeFactor;
}
else
{
throw new ArgumentException("Invalid timeseek header");
}
timeFactor /= 60;
}
return TimeSpan.FromSeconds(secondsSum).Ticks;
}
public void AddTimeSeekResponseHeaders(StreamState state, IHeaderDictionary responseHeaders)
{
var runtimeSeconds = TimeSpan.FromTicks(state.RunTimeTicks.Value).TotalSeconds.ToString(CultureInfo.InvariantCulture);
var startSeconds = TimeSpan.FromTicks(state.Request.StartTimeTicks ?? 0).TotalSeconds.ToString(CultureInfo.InvariantCulture);
responseHeaders.Add("TimeSeekRange.dlna.org", string.Format(
CultureInfo.InvariantCulture,
"npt={0}-{1}/{1}",
startSeconds,
runtimeSeconds));
responseHeaders.Add("X-AvailableSeekRange", string.Format(
CultureInfo.InvariantCulture,
"1 npt={0}-{1}",
startSeconds,
runtimeSeconds));
}
}
}