/// <summary>
/// Get audio stream.
/// </summary>
/// <param name="transcodingJobType">Transcoding job type.</param>
/// <param name="streamingRequest">Streaming controller.Request dto.</param>
/// <returns>A <see cref="Task"/> containing the resulting <see cref="ActionResult"/>.</returns>
public async Task <ActionResult> GetAudioStream(
TranscodingJobType transcodingJobType,
StreamingRequestDto streamingRequest)
{
if (_httpContextAccessor.HttpContext == null)
{
throw new ResourceNotFoundException(nameof(_httpContextAccessor.HttpContext));
}
bool isHeadRequest = _httpContextAccessor.HttpContext.Request.Method == System.Net.WebRequestMethods.Http.Head;
var cancellationTokenSource = new CancellationTokenSource();
using var state = await StreamingHelpers.GetStreamingState(
streamingRequest,
_httpContextAccessor.HttpContext.Request,
_authContext,
_mediaSourceManager,
_userManager,
_libraryManager,
_serverConfigurationManager,
_mediaEncoder,
_fileSystem,
_subtitleEncoder,
_configuration,
_dlnaManager,
_deviceManager,
_transcodingJobHelper,
transcodingJobType,
cancellationTokenSource.Token)
.ConfigureAwait(false);
if (streamingRequest.Static && state.DirectStreamProvider != null)
{
StreamingHelpers.AddDlnaHeaders(state, _httpContextAccessor.HttpContext.Response.Headers, true, streamingRequest.StartTimeTicks, _httpContextAccessor.HttpContext.Request, _dlnaManager);
await new ProgressiveFileCopier(state.DirectStreamProvider, null, _transcodingJobHelper, CancellationToken.None)
{
AllowEndOfFile = false
}.WriteToAsync(_httpContextAccessor.HttpContext.Response.Body, CancellationToken.None)
.ConfigureAwait(false);
// TODO (moved from MediaBrowser.Api): Don't hardcode contentType
return(new FileStreamResult(_httpContextAccessor.HttpContext.Response.Body, MimeTypes.GetMimeType("file.ts") !));
}
// Static remote stream
if (streamingRequest.Static && state.InputProtocol == MediaProtocol.Http)
{
StreamingHelpers.AddDlnaHeaders(state, _httpContextAccessor.HttpContext.Response.Headers, true, streamingRequest.StartTimeTicks, _httpContextAccessor.HttpContext.Request, _dlnaManager);
var httpClient = _httpClientFactory.CreateClient(NamedClient.Default);
return(await FileStreamResponseHelpers.GetStaticRemoteStreamResult(state, isHeadRequest, httpClient, _httpContextAccessor.HttpContext).ConfigureAwait(false));
}
if (streamingRequest.Static && state.InputProtocol != MediaProtocol.File)
{
return(new BadRequestObjectResult($"Input protocol {state.InputProtocol} cannot be streamed statically"));
}
var outputPath = state.OutputFilePath;
var outputPathExists = System.IO.File.Exists(outputPath);
var transcodingJob = _transcodingJobHelper.GetTranscodingJob(outputPath, TranscodingJobType.Progressive);
var isTranscodeCached = outputPathExists && transcodingJob != null;
StreamingHelpers.AddDlnaHeaders(state, _httpContextAccessor.HttpContext.Response.Headers, streamingRequest.Static || isTranscodeCached, streamingRequest.StartTimeTicks, _httpContextAccessor.HttpContext.Request, _dlnaManager);
// Static stream
if (streamingRequest.Static)
{
var contentType = state.GetMimeType("." + state.OutputContainer, false) ?? state.GetMimeType(state.MediaPath);
if (state.MediaSource.IsInfiniteStream)
{
await new ProgressiveFileCopier(state.MediaPath, null, _transcodingJobHelper, CancellationToken.None)
{
AllowEndOfFile = false
}.WriteToAsync(_httpContextAccessor.HttpContext.Response.Body, CancellationToken.None)
.ConfigureAwait(false);
return(new FileStreamResult(_httpContextAccessor.HttpContext.Response.Body, contentType));
}
return(FileStreamResponseHelpers.GetStaticFileResult(
state.MediaPath,
contentType,
isHeadRequest,
_httpContextAccessor.HttpContext));
}
// Need to start ffmpeg (because media can't be returned directly)
var encodingOptions = _serverConfigurationManager.GetEncodingOptions();
var encodingHelper = new EncodingHelper(_mediaEncoder, _fileSystem, _subtitleEncoder, _configuration);
var ffmpegCommandLineArguments = encodingHelper.GetProgressiveAudioFullCommandLine(state, encodingOptions, outputPath);
return(await FileStreamResponseHelpers.GetTranscodedFile(
state,
isHeadRequest,
_httpContextAccessor.HttpContext,
_transcodingJobHelper,
ffmpegCommandLineArguments,
transcodingJobType,
cancellationTokenSource).ConfigureAwait(false));
}
private async Task <ActionResult> GetMasterPlaylistInternal(
StreamingRequestDto streamingRequest,
bool isHeadRequest,
bool enableAdaptiveBitrateStreaming,
TranscodingJobType transcodingJobType,
CancellationTokenSource cancellationTokenSource)
{
if (_httpContextAccessor.HttpContext == null)
{
throw new ResourceNotFoundException(nameof(_httpContextAccessor.HttpContext));
}
using var state = await StreamingHelpers.GetStreamingState(
streamingRequest,
_httpContextAccessor.HttpContext.Request,
_authContext,
_mediaSourceManager,
_userManager,
_libraryManager,
_serverConfigurationManager,
_mediaEncoder,
_encodingHelper,
_dlnaManager,
_deviceManager,
_transcodingJobHelper,
transcodingJobType,
cancellationTokenSource.Token)
.ConfigureAwait(false);
_httpContextAccessor.HttpContext.Response.Headers.Add(HeaderNames.Expires, "0");
if (isHeadRequest)
{
return(new FileContentResult(Array.Empty <byte>(), MimeTypes.GetMimeType("playlist.m3u8")));
}
var totalBitrate = (state.OutputAudioBitrate ?? 0) + (state.OutputVideoBitrate ?? 0);
var builder = new StringBuilder();
builder.AppendLine("#EXTM3U");
var isLiveStream = state.IsSegmentedLiveStream;
var queryString = _httpContextAccessor.HttpContext.Request.QueryString.ToString();
// from universal audio service
if (!string.IsNullOrWhiteSpace(state.Request.SegmentContainer) &&
!queryString.Contains("SegmentContainer", StringComparison.OrdinalIgnoreCase))
{
queryString += "&SegmentContainer=" + state.Request.SegmentContainer;
}
// from universal audio service
if (!string.IsNullOrWhiteSpace(state.Request.TranscodeReasons) &&
!queryString.Contains("TranscodeReasons=", StringComparison.OrdinalIgnoreCase))
{
queryString += "&TranscodeReasons=" + state.Request.TranscodeReasons;
}
// Main stream
var playlistUrl = isLiveStream ? "live.m3u8" : "main.m3u8";
playlistUrl += queryString;
var subtitleStreams = state.MediaSource
.MediaStreams
.Where(i => i.IsTextSubtitleStream)
.ToList();
var subtitleGroup = subtitleStreams.Count > 0 && (state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Hls || state.VideoRequest !.EnableSubtitlesInManifest)
? "subs"
: null;
// If we're burning in subtitles then don't add additional subs to the manifest
if (state.SubtitleStream != null && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode)
{
subtitleGroup = null;
}
if (!string.IsNullOrWhiteSpace(subtitleGroup))
{
AddSubtitles(state, subtitleStreams, builder, _httpContextAccessor.HttpContext.User);
}
var basicPlaylist = AppendPlaylist(builder, state, playlistUrl, totalBitrate, subtitleGroup);
if (state.VideoStream != null && state.VideoRequest != null)
{
// Provide SDR HEVC entrance for backward compatibility.
if (EncodingHelper.IsCopyCodec(state.OutputVideoCodec) &&
!string.IsNullOrEmpty(state.VideoStream.VideoRange) &&
string.Equals(state.VideoStream.VideoRange, "HDR", StringComparison.OrdinalIgnoreCase) &&
string.Equals(state.ActualOutputVideoCodec, "hevc", StringComparison.OrdinalIgnoreCase))
{
var requestedVideoProfiles = state.GetRequestedProfiles("hevc");
if (requestedVideoProfiles != null && requestedVideoProfiles.Length > 0)
{
// Force HEVC Main Profile and disable video stream copy.
state.OutputVideoCodec = "hevc";
var sdrVideoUrl = ReplaceProfile(playlistUrl, "hevc", string.Join(',', requestedVideoProfiles), "main");
sdrVideoUrl += "&AllowVideoStreamCopy=false";
var sdrOutputVideoBitrate = _encodingHelper.GetVideoBitrateParamValue(state.VideoRequest, state.VideoStream, state.OutputVideoCodec) ?? 0;
var sdrOutputAudioBitrate = _encodingHelper.GetAudioBitrateParam(state.VideoRequest, state.AudioStream) ?? 0;
var sdrTotalBitrate = sdrOutputAudioBitrate + sdrOutputVideoBitrate;
AppendPlaylist(builder, state, sdrVideoUrl, sdrTotalBitrate, subtitleGroup);
// Restore the video codec
state.OutputVideoCodec = "copy";
}
}
// Provide Level 5.0 entrance for backward compatibility.
// e.g. Apple A10 chips refuse the master playlist containing SDR HEVC Main Level 5.1 video,
// but in fact it is capable of playing videos up to Level 6.1.
if (EncodingHelper.IsCopyCodec(state.OutputVideoCodec) &&
state.VideoStream.Level.HasValue &&
state.VideoStream.Level > 150 &&
!string.IsNullOrEmpty(state.VideoStream.VideoRange) &&
string.Equals(state.VideoStream.VideoRange, "SDR", StringComparison.OrdinalIgnoreCase) &&
string.Equals(state.ActualOutputVideoCodec, "hevc", StringComparison.OrdinalIgnoreCase))
{
var playlistCodecsField = new StringBuilder();
AppendPlaylistCodecsField(playlistCodecsField, state);
// Force the video level to 5.0.
var originalLevel = state.VideoStream.Level;
state.VideoStream.Level = 150;
var newPlaylistCodecsField = new StringBuilder();
AppendPlaylistCodecsField(newPlaylistCodecsField, state);
// Restore the video level.
state.VideoStream.Level = originalLevel;
var newPlaylist = ReplacePlaylistCodecsField(basicPlaylist, playlistCodecsField, newPlaylistCodecsField);
builder.Append(newPlaylist);
}
}
if (EnableAdaptiveBitrateStreaming(state, isLiveStream, enableAdaptiveBitrateStreaming, _httpContextAccessor.HttpContext.GetNormalizedRemoteIp()))
{
var requestedVideoBitrate = state.VideoRequest == null ? 0 : state.VideoRequest.VideoBitRate ?? 0;
// By default, vary by just 200k
var variation = GetBitrateVariation(totalBitrate);
var newBitrate = totalBitrate - variation;
var variantUrl = ReplaceVideoBitrate(playlistUrl, requestedVideoBitrate, requestedVideoBitrate - variation);
AppendPlaylist(builder, state, variantUrl, newBitrate, subtitleGroup);
variation *= 2;
newBitrate = totalBitrate - variation;
variantUrl = ReplaceVideoBitrate(playlistUrl, requestedVideoBitrate, requestedVideoBitrate - variation);
AppendPlaylist(builder, state, variantUrl, newBitrate, subtitleGroup);
}
return(new FileContentResult(Encoding.UTF8.GetBytes(builder.ToString()), MimeTypes.GetMimeType("playlist.m3u8")));
}
private async Task <ActionResult> GetMasterPlaylistInternal(
StreamingRequestDto streamingRequest,
bool isHeadRequest,
bool enableAdaptiveBitrateStreaming,
TranscodingJobType transcodingJobType,
CancellationTokenSource cancellationTokenSource)
{
using var state = await StreamingHelpers.GetStreamingState(
streamingRequest,
_httpContextAccessor.HttpContext.Request,
_authContext,
_mediaSourceManager,
_userManager,
_libraryManager,
_serverConfigurationManager,
_mediaEncoder,
_fileSystem,
_subtitleEncoder,
_configuration,
_dlnaManager,
_deviceManager,
_transcodingJobHelper,
transcodingJobType,
cancellationTokenSource.Token)
.ConfigureAwait(false);
_httpContextAccessor.HttpContext.Response.Headers.Add(HeaderNames.Expires, "0");
if (isHeadRequest)
{
return(new FileContentResult(Array.Empty <byte>(), MimeTypes.GetMimeType("playlist.m3u8")));
}
var totalBitrate = (state.OutputAudioBitrate ?? 0) + (state.OutputVideoBitrate ?? 0);
var builder = new StringBuilder();
builder.AppendLine("#EXTM3U");
var isLiveStream = state.IsSegmentedLiveStream;
var queryString = _httpContextAccessor.HttpContext.Request.QueryString.ToString();
// from universal audio service
if (queryString.IndexOf("SegmentContainer", StringComparison.OrdinalIgnoreCase) == -1 && !string.IsNullOrWhiteSpace(state.Request.SegmentContainer))
{
queryString += "&SegmentContainer=" + state.Request.SegmentContainer;
}
// from universal audio service
if (!string.IsNullOrWhiteSpace(state.Request.TranscodeReasons) && queryString.IndexOf("TranscodeReasons=", StringComparison.OrdinalIgnoreCase) == -1)
{
queryString += "&TranscodeReasons=" + state.Request.TranscodeReasons;
}
// Main stream
var playlistUrl = isLiveStream ? "live.m3u8" : "main.m3u8";
playlistUrl += queryString;
var subtitleStreams = state.MediaSource
.MediaStreams
.Where(i => i.IsTextSubtitleStream)
.ToList();
var subtitleGroup = subtitleStreams.Count > 0 && (state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Hls || state.VideoRequest !.EnableSubtitlesInManifest)
? "subs"
: null;
// If we're burning in subtitles then don't add additional subs to the manifest
if (state.SubtitleStream != null && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode)
{
subtitleGroup = null;
}
if (!string.IsNullOrWhiteSpace(subtitleGroup))
{
AddSubtitles(state, subtitleStreams, builder, _httpContextAccessor.HttpContext.User);
}
AppendPlaylist(builder, state, playlistUrl, totalBitrate, subtitleGroup);
if (EnableAdaptiveBitrateStreaming(state, isLiveStream, enableAdaptiveBitrateStreaming, _httpContextAccessor.HttpContext.GetNormalizedRemoteIp()))
{
var requestedVideoBitrate = state.VideoRequest == null ? 0 : state.VideoRequest.VideoBitRate ?? 0;
// By default, vary by just 200k
var variation = GetBitrateVariation(totalBitrate);
var newBitrate = totalBitrate - variation;
var variantUrl = ReplaceBitrate(playlistUrl, requestedVideoBitrate, requestedVideoBitrate - variation);
AppendPlaylist(builder, state, variantUrl, newBitrate, subtitleGroup);
variation *= 2;
newBitrate = totalBitrate - variation;
variantUrl = ReplaceBitrate(playlistUrl, requestedVideoBitrate, requestedVideoBitrate - variation);
AppendPlaylist(builder, state, variantUrl, newBitrate, subtitleGroup);
}
return(new FileContentResult(Encoding.UTF8.GetBytes(builder.ToString()), MimeTypes.GetMimeType("playlist.m3u8")));
}
