jellyfin-server/MediaBrowser.Api/Playback/MediaInfoService.cs
2015-04-04 15:35:29 -04:00

374 lines
14 KiB
C#

using MediaBrowser.Controller.Devices;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Net;
using MediaBrowser.Model.Dlna;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.MediaInfo;
using MediaBrowser.Model.Session;
using ServiceStack;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Api.Playback
{
[Route("/Items/{Id}/MediaInfo", "GET", Summary = "Gets live playback media info for an item")]
public class GetLiveMediaInfo : IReturn<PlaybackInfoResponse>
{
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
[ApiMember(Name = "UserId", Description = "User Id", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "GET")]
public string UserId { get; set; }
}
[Route("/Items/{Id}/PlaybackInfo", "GET", Summary = "Gets live playback media info for an item")]
public class GetPlaybackInfo : IReturn<PlaybackInfoResponse>
{
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
[ApiMember(Name = "UserId", Description = "User Id", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "GET")]
public string UserId { get; set; }
}
[Route("/Items/{Id}/PlaybackInfo", "POST", Summary = "Gets live playback media info for an item")]
public class GetPostedPlaybackInfo : PlaybackInfoRequest, IReturn<PlaybackInfoResponse>
{
}
[Route("/LiveStreams/Open", "POST", Summary = "Opens a media source")]
public class OpenMediaSource : LiveStreamRequest, IReturn<LiveStreamResponse>
{
}
[Route("/LiveStreams/Close", "POST", Summary = "Closes a media source")]
public class CloseMediaSource : IReturnVoid
{
[ApiMember(Name = "LiveStreamId", Description = "LiveStreamId", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "POST")]
public string LiveStreamId { get; set; }
}
[Authenticated]
public class MediaInfoService : BaseApiService
{
private readonly IMediaSourceManager _mediaSourceManager;
private readonly IDeviceManager _deviceManager;
private readonly ILibraryManager _libraryManager;
public MediaInfoService(IMediaSourceManager mediaSourceManager, IDeviceManager deviceManager, ILibraryManager libraryManager)
{
_mediaSourceManager = mediaSourceManager;
_deviceManager = deviceManager;
_libraryManager = libraryManager;
}
public async Task<object> Get(GetPlaybackInfo request)
{
var result = await GetPlaybackInfo(request.Id, request.UserId).ConfigureAwait(false);
return ToOptimizedResult(result);
}
public async Task<object> Get(GetLiveMediaInfo request)
{
var result = await GetPlaybackInfo(request.Id, request.UserId).ConfigureAwait(false);
return ToOptimizedResult(result);
}
public async Task<object> Post(OpenMediaSource request)
{
var authInfo = AuthorizationContext.GetAuthorizationInfo(Request);
var result = await _mediaSourceManager.OpenLiveStream(request, false, CancellationToken.None).ConfigureAwait(false);
var profile = request.DeviceProfile;
if (profile == null)
{
var caps = _deviceManager.GetCapabilities(authInfo.DeviceId);
if (caps != null)
{
profile = caps.DeviceProfile;
}
}
if (profile != null)
{
var item = _libraryManager.GetItemById(request.ItemId);
SetDeviceSpecificData(item, result.MediaSource, profile, authInfo, request.MaxStreamingBitrate,
request.StartTimeTicks ?? 0, result.MediaSource.Id, request.AudioStreamIndex,
request.SubtitleStreamIndex, request.PlaySessionId);
}
else
{
if (!string.IsNullOrWhiteSpace(result.MediaSource.TranscodingUrl))
{
result.MediaSource.TranscodingUrl += "&LiveStreamId=" + result.MediaSource.LiveStreamId;
}
}
return ToOptimizedResult(result);
}
public void Post(CloseMediaSource request)
{
var task = _mediaSourceManager.CloseLiveStream(request.LiveStreamId, CancellationToken.None);
Task.WaitAll(task);
}
public async Task<object> Post(GetPostedPlaybackInfo request)
{
var info = await GetPlaybackInfo(request.Id, request.UserId, request.MediaSourceId, request.LiveStreamId).ConfigureAwait(false);
var authInfo = AuthorizationContext.GetAuthorizationInfo(Request);
var profile = request.DeviceProfile;
if (profile == null)
{
var caps = _deviceManager.GetCapabilities(authInfo.DeviceId);
if (caps != null)
{
profile = caps.DeviceProfile;
}
}
if (profile != null)
{
var mediaSourceId = request.MediaSourceId;
SetDeviceSpecificData(request.Id, info, profile, authInfo, request.MaxStreamingBitrate, request.StartTimeTicks ?? 0, mediaSourceId, request.AudioStreamIndex, request.SubtitleStreamIndex);
}
return ToOptimizedResult(info);
}
private async Task<PlaybackInfoResponse> GetPlaybackInfo(string id, string userId, string mediaSourceId = null, string liveStreamId = null)
{
var result = new PlaybackInfoResponse();
if (string.IsNullOrWhiteSpace(liveStreamId))
{
IEnumerable<MediaSourceInfo> mediaSources;
try
{
mediaSources = await _mediaSourceManager.GetPlayackMediaSources(id, userId, true, CancellationToken.None).ConfigureAwait(false);
}
catch (PlaybackException ex)
{
mediaSources = new List<MediaSourceInfo>();
result.ErrorCode = ex.ErrorCode;
}
result.MediaSources = mediaSources.ToList();
if (!string.IsNullOrWhiteSpace(mediaSourceId))
{
result.MediaSources = result.MediaSources
.Where(i => string.Equals(i.Id, mediaSourceId, StringComparison.OrdinalIgnoreCase))
.ToList();
}
}
else
{
var mediaSource = await _mediaSourceManager.GetLiveStream(liveStreamId, CancellationToken.None).ConfigureAwait(false);
result.MediaSources = new List<MediaSourceInfo> { mediaSource };
}
if (result.MediaSources.Count == 0)
{
if (!result.ErrorCode.HasValue)
{
result.ErrorCode = PlaybackErrorCode.NoCompatibleStream;
}
}
else
{
result.PlaySessionId = Guid.NewGuid().ToString("N");
}
return result;
}
private void SetDeviceSpecificData(string itemId,
PlaybackInfoResponse result,
DeviceProfile profile,
AuthorizationInfo auth,
int? maxBitrate,
long startTimeTicks,
string mediaSourceId,
int? audioStreamIndex,
int? subtitleStreamIndex)
{
var item = _libraryManager.GetItemById(itemId);
foreach (var mediaSource in result.MediaSources)
{
SetDeviceSpecificData(item, mediaSource, profile, auth, maxBitrate, startTimeTicks, mediaSourceId, audioStreamIndex, subtitleStreamIndex, result.PlaySessionId);
}
SortMediaSources(result);
}
private void SetDeviceSpecificData(BaseItem item,
MediaSourceInfo mediaSource,
DeviceProfile profile,
AuthorizationInfo auth,
int? maxBitrate,
long startTimeTicks,
string mediaSourceId,
int? audioStreamIndex,
int? subtitleStreamIndex,
string playSessionId)
{
var streamBuilder = new StreamBuilder(Logger);
var options = new VideoOptions
{
MediaSources = new List<MediaSourceInfo> { mediaSource },
Context = EncodingContext.Streaming,
DeviceId = auth.DeviceId,
ItemId = item.Id.ToString("N"),
Profile = profile,
MaxBitrate = maxBitrate
};
if (string.Equals(mediaSourceId, mediaSource.Id, StringComparison.OrdinalIgnoreCase))
{
options.MediaSourceId = mediaSourceId;
options.AudioStreamIndex = audioStreamIndex;
options.SubtitleStreamIndex = subtitleStreamIndex;
}
if (mediaSource.SupportsDirectPlay)
{
var supportsDirectStream = mediaSource.SupportsDirectStream;
// Dummy this up to fool StreamBuilder
mediaSource.SupportsDirectStream = true;
// The MediaSource supports direct stream, now test to see if the client supports it
var streamInfo = string.Equals(item.MediaType, MediaType.Audio, StringComparison.OrdinalIgnoreCase) ?
streamBuilder.BuildAudioItem(options) :
streamBuilder.BuildVideoItem(options);
if (streamInfo == null || !streamInfo.IsDirectStream)
{
mediaSource.SupportsDirectPlay = false;
}
// Set this back to what it was
mediaSource.SupportsDirectStream = supportsDirectStream;
if (streamInfo != null)
{
SetDeviceSpecificSubtitleInfo(streamInfo, mediaSource, auth.Token);
}
}
if (mediaSource.SupportsDirectStream)
{
// The MediaSource supports direct stream, now test to see if the client supports it
var streamInfo = string.Equals(item.MediaType, MediaType.Audio, StringComparison.OrdinalIgnoreCase) ?
streamBuilder.BuildAudioItem(options) :
streamBuilder.BuildVideoItem(options);
if (streamInfo == null || !streamInfo.IsDirectStream)
{
mediaSource.SupportsDirectStream = false;
}
if (streamInfo != null)
{
SetDeviceSpecificSubtitleInfo(streamInfo, mediaSource, auth.Token);
}
}
if (mediaSource.SupportsTranscoding)
{
// The MediaSource supports direct stream, now test to see if the client supports it
var streamInfo = string.Equals(item.MediaType, MediaType.Audio, StringComparison.OrdinalIgnoreCase) ?
streamBuilder.BuildAudioItem(options) :
streamBuilder.BuildVideoItem(options);
if (streamInfo != null)
{
streamInfo.PlaySessionId = playSessionId;
SetDeviceSpecificSubtitleInfo(streamInfo, mediaSource, auth.Token);
}
if (streamInfo != null && streamInfo.PlayMethod == PlayMethod.Transcode)
{
streamInfo.StartPositionTicks = startTimeTicks;
mediaSource.TranscodingUrl = streamInfo.ToUrl("-", auth.Token).TrimStart('-');
mediaSource.TranscodingContainer = streamInfo.Container;
mediaSource.TranscodingSubProtocol = streamInfo.SubProtocol;
}
}
}
private void SetDeviceSpecificSubtitleInfo(StreamInfo info, MediaSourceInfo mediaSource, string accessToken)
{
var profiles = info.GetSubtitleProfiles(false, "-", accessToken);
mediaSource.DefaultSubtitleStreamIndex = info.SubtitleStreamIndex;
foreach (var profile in profiles)
{
foreach (var stream in mediaSource.MediaStreams)
{
if (stream.Type == MediaStreamType.Subtitle && stream.Index == profile.Index)
{
stream.DeliveryMethod = profile.DeliveryMethod;
if (profile.DeliveryMethod == SubtitleDeliveryMethod.External)
{
stream.DeliveryUrl = profile.Url.TrimStart('-');
stream.IsExternalUrl = profile.IsExternalUrl;
}
}
}
}
}
private void SortMediaSources(PlaybackInfoResponse result)
{
var originalList = result.MediaSources.ToList();
result.MediaSources = result.MediaSources.OrderBy(i =>
{
// Nothing beats direct playing a file
if (i.SupportsDirectPlay && i.Protocol == MediaProtocol.File)
{
return 0;
}
return 1;
}).ThenBy(i =>
{
// Let's assume direct streaming a file is just as desirable as direct playing a remote url
if (i.SupportsDirectPlay || i.SupportsDirectStream)
{
return 0;
}
return 1;
}).ThenBy(i =>
{
switch (i.Protocol)
{
case MediaProtocol.File:
return 0;
default:
return 1;
}
}).ThenBy(originalList.IndexOf)
.ToList();
}
}
}