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hls updates

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This commit is contained in:
Luke Pulverenti 2015-05-20 12:28:55 -04:00
parent 448dd949c7
commit 71b8f87cb7
3 changed files with 73 additions and 8 deletions
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4
MediaBrowser.Api/Playback/BaseStreamingService.cs
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@ -148,7 +148,7 @@ namespace MediaBrowser.Api.Playback
} }
protected readonly CultureInfo UsCulture = new CultureInfo("en-US"); protected readonly CultureInfo UsCulture = new CultureInfo("en-US");
private readonly long _slowSeekTicks = TimeSpan.FromSeconds(2).Ticks; private readonly long _slowSeekTicks = TimeSpan.FromSeconds(0).Ticks;
/// <summary> /// <summary>
/// Gets the fast seek command line parameter. /// Gets the fast seek command line parameter.
@ -177,7 +177,7 @@ namespace MediaBrowser.Api.Playback
{ {
var time = request.StartTimeTicks ?? 0; var time = request.StartTimeTicks ?? 0;
if (time > _slowSeekTicks) if (time > _slowSeekTicks && _slowSeekTicks > 0)
{ {
return string.Format("-ss {0}", MediaEncoder.GetTimeParameter(_slowSeekTicks)); return string.Format("-ss {0}", MediaEncoder.GetTimeParameter(_slowSeekTicks));
} }

76
MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs
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@ -13,6 +13,7 @@ using MediaBrowser.Model.IO;
using MediaBrowser.Model.Serialization; using MediaBrowser.Model.Serialization;
using ServiceStack; using ServiceStack;
using System; using System;
using System.Collections.Concurrent;
using System.Collections.Generic; using System.Collections.Generic;
using System.Globalization; using System.Globalization;
using System.IO; using System.IO;
@ -156,12 +157,14 @@ namespace MediaBrowser.Api.Playback.Hls
{ {
ApiEntryPoint.Instance.KillTranscodingJobs(request.DeviceId, request.PlaySessionId, p => false); ApiEntryPoint.Instance.KillTranscodingJobs(request.DeviceId, request.PlaySessionId, p => false);
await ReadSegmentLengths(playlistPath).ConfigureAwait(false);
if (currentTranscodingIndex.HasValue) if (currentTranscodingIndex.HasValue)
{ {
DeleteLastFile(playlistPath, segmentExtension, 0); DeleteLastFile(playlistPath, segmentExtension, 0);
} }
request.StartTimeTicks = GetSeekPositionTicks(state, requestedIndex); request.StartTimeTicks = GetSeekPositionTicks(state, playlistPath, requestedIndex);
job = await StartFfMpeg(state, playlistPath, cancellationTokenSource).ConfigureAwait(false); job = await StartFfMpeg(state, playlistPath, cancellationTokenSource).ConfigureAwait(false);
} }
@ -199,11 +202,73 @@ namespace MediaBrowser.Api.Playback.Hls
return await GetSegmentResult(playlistPath, segmentPath, requestedIndex, segmentLength, job, cancellationToken).ConfigureAwait(false); return await GetSegmentResult(playlistPath, segmentPath, requestedIndex, segmentLength, job, cancellationToken).ConfigureAwait(false);
} }
private long GetSeekPositionTicks(StreamState state, int requestedIndex) private static readonly ConcurrentDictionary<string, double> SegmentLengths = new ConcurrentDictionary<string, double>(StringComparer.OrdinalIgnoreCase);
private async Task ReadSegmentLengths(string playlist)
{ {
var startSeconds = requestedIndex * state.SegmentLength; try
var position = TimeSpan.FromSeconds(startSeconds).Ticks; {
using (var fileStream = GetPlaylistFileStream(playlist))
{
using (var reader = new StreamReader(fileStream))
{
double duration = -1;
while (!reader.EndOfStream)
{
var text = await reader.ReadLineAsync().ConfigureAwait(false);
if (text.StartsWith("#EXTINF", StringComparison.OrdinalIgnoreCase))
{
var parts = text.Split(new[] { ':' }, 2);
if (parts.Length == 2)
{
var time = parts[1].Trim(new[] { ',' }).Trim();
double timeValue;
if (double.TryParse(time, NumberStyles.Any, CultureInfo.InvariantCulture, out timeValue))
{
duration = timeValue;
continue;
}
}
}
else if (duration != -1)
{
SegmentLengths.AddOrUpdate(text, duration, (k, v) => duration);
Logger.Debug("Added segment length of {0} for {1}", duration, text);
}
duration = -1;
}
}
}
}
catch (FileNotFoundException)
{
}
}
private long GetSeekPositionTicks(StreamState state, string playlist, int requestedIndex)
{
double startSeconds = 0;
for (var i = 0; i < requestedIndex; i++)
{
var segmentPath = GetSegmentPath(playlist, i);
double length;
if (SegmentLengths.TryGetValue(Path.GetFileName(segmentPath), out length))
{
Logger.Debug("Found segment length of {0} for index {1}", length, i);
startSeconds += length;
}
else
{
startSeconds += state.SegmentLength;
}
}
var position = TimeSpan.FromSeconds(startSeconds).Ticks;
return position; return position;
} }
@ -693,7 +758,7 @@ namespace MediaBrowser.Api.Playback.Hls
} }
var keyFrameArg = string.Format(" -force_key_frames expr:gte(t,n_forced*{0})", var keyFrameArg = string.Format(" -force_key_frames expr:gte(t,n_forced*{0})",
state.SegmentLength.ToString(UsCulture)); 1.ToString(UsCulture));
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream; var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream;
@ -728,6 +793,7 @@ namespace MediaBrowser.Api.Playback.Hls
{ {
var startTime = state.Request.StartTimeTicks ?? 0; var startTime = state.Request.StartTimeTicks ?? 0;
var durationSeconds = ApiEntryPoint.Instance.GetEncodingOptions().ThrottleThresholdInSeconds; var durationSeconds = ApiEntryPoint.Instance.GetEncodingOptions().ThrottleThresholdInSeconds;
var endTime = startTime + TimeSpan.FromSeconds(durationSeconds).Ticks; var endTime = startTime + TimeSpan.FromSeconds(durationSeconds).Ticks;
endTime = Math.Min(endTime, state.RunTimeTicks.Value); endTime = Math.Min(endTime, state.RunTimeTicks.Value);

1
MediaBrowser.WebDashboard/Api/PackageCreator.cs
View File

@ -619,7 +619,6 @@ namespace MediaBrowser.WebDashboard.Api
"scheduledtaskpage.js", "scheduledtaskpage.js",
"scheduledtaskspage.js", "scheduledtaskspage.js",
"search.js", "search.js",
"supporterkeypage.js",
"syncactivity.js", "syncactivity.js",
"syncsettings.js", "syncsettings.js",
"thememediaplayer.js", "thememediaplayer.js",