starred/jellyfin-jellyfin-1
1
0
Fork 0
mirror of https://github.com/jellyfin/jellyfin.git synced 2025-12-16 22:13:06 +03:00
Code Issues Packages Projects Releases Wiki Activity

switch ffmpeg to hls muxer for live streaming

Browse Source 
segment muxer cannot make fMP4 init file.
'-strict -2' option doesn't work with segment muxer for flac remuxing.
This commit is contained in:
nyanmisaka
2020-11-14 03:47:54 +08:00
parent d91a099c9e
commit 8c0778e827
3 changed files with 274 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

85
Jellyfin.Api/Controllers/DynamicHlsController.cs
View File

@@ -41,6 +41,9 @@ namespace Jellyfin.Api.Controllers
[Authorize(Policy = Policies.DefaultAuthorization)]
public class DynamicHlsController : BaseJellyfinApiController
{
private const string DefaultEncoderPreset = "veryfast";
private readonly TranscodingJobType _transcodingJobType = TranscodingJobType.Hls;
private readonly ILibraryManager _libraryManager;
private readonly IUserManager _userManager;
private readonly IDlnaManager _dlnaManager;
@@ -56,8 +59,7 @@ namespace Jellyfin.Api.Controllers
private readonly ILogger<DynamicHlsController> _logger;
private readonly EncodingHelper _encodingHelper;
private readonly DynamicHlsHelper _dynamicHlsHelper;
private readonly TranscodingJobType _transcodingJobType = TranscodingJobType.Hls;
private readonly EncodingOptions _encodingOptions;
/// <summary>
/// Initializes a new instance of the <see cref="DynamicHlsController"/> class.
@@ -92,6 +94,8 @@ namespace Jellyfin.Api.Controllers
ILogger<DynamicHlsController> logger,
DynamicHlsHelper dynamicHlsHelper)
{
_encodingHelper = new EncodingHelper(mediaEncoder, fileSystem, subtitleEncoder, configuration);
_libraryManager = libraryManager;
_userManager = userManager;
_dlnaManager = dlnaManager;
@@ -106,8 +110,7 @@ namespace Jellyfin.Api.Controllers
_transcodingJobHelper = transcodingJobHelper;
_logger = logger;
_dynamicHlsHelper = dynamicHlsHelper;
_encodingHelper = new EncodingHelper(_mediaEncoder, _fileSystem, _subtitleEncoder, _configuration);
_encodingOptions = serverConfigurationManager.GetEncodingOptions();
}
/// <summary>
@@ -1255,7 +1258,7 @@ namespace Jellyfin.Api.Controllers
if (segmentId == -1)
{
_logger.LogDebug("Starting transcoding because fmp4 header file is being requested");
_logger.LogDebug("Starting transcoding because fmp4 init file is being requested");
startTranscoding = true;
segmentId = 0;
}
@@ -1291,11 +1294,10 @@ namespace Jellyfin.Api.Controllers
streamingRequest.StartTimeTicks = GetStartPositionTicks(state, segmentId);
state.WaitForPath = segmentPath;
var encodingOptions = _serverConfigurationManager.GetEncodingOptions();
job = await _transcodingJobHelper.StartFfMpeg(
state,
playlistPath,
GetCommandLineArguments(playlistPath, encodingOptions, state, true, segmentId),
GetCommandLineArguments(playlistPath, state, true, segmentId),
Request,
_transcodingJobType,
cancellationTokenSource).ConfigureAwait(false);
@@ -1351,11 +1353,10 @@ namespace Jellyfin.Api.Controllers
return result.ToArray();
}
private string GetCommandLineArguments(string outputPath, EncodingOptions encodingOptions, StreamState state, bool isEncoding, int startNumber)
private string GetCommandLineArguments(string outputPath, StreamState state, bool isEncoding, int startNumber)
{
var videoCodec = _encodingHelper.GetVideoEncoder(state, encodingOptions);
var threads = _encodingHelper.GetNumberOfThreads(state, encodingOptions, videoCodec);
var videoCodec = _encodingHelper.GetVideoEncoder(state, _encodingOptions);
var threads = _encodingHelper.GetNumberOfThreads(state, _encodingOptions, videoCodec);
if (state.BaseRequest.BreakOnNonKeyFrames)
{
@@ -1367,11 +1368,9 @@ namespace Jellyfin.Api.Controllers
state.BaseRequest.BreakOnNonKeyFrames = false;
}
var inputModifier = _encodingHelper.GetInputModifier(state, encodingOptions);
// If isEncoding is true we're actually starting ffmpeg
var startNumberParam = isEncoding ? startNumber.ToString(CultureInfo.InvariantCulture) : "0";
var inputModifier = _encodingHelper.GetInputModifier(state, _encodingOptions);
var mapArgs = state.IsOutputVideo ? _encodingHelper.GetMapArgs(state) : string.Empty;
var outputFileNameWithoutExtension = Path.GetFileNameWithoutExtension(outputPath);
@@ -1379,7 +1378,7 @@ namespace Jellyfin.Api.Controllers
var outputExtension = GetSegmentFileExtension(state.Request.SegmentContainer);
var outputTsArg = outputPrefix + "%d" + outputExtension;
var segmentFormat = GetSegmentFileExtension(state.Request.SegmentContainer).TrimStart('.');
var segmentFormat = outputExtension.TrimStart('.');
if (string.Equals(segmentFormat, "ts", StringComparison.OrdinalIgnoreCase))
{
segmentFormat = "mpegts";
@@ -1406,19 +1405,19 @@ namespace Jellyfin.Api.Controllers
_logger.LogError("Invalid HLS segment container: " + segmentFormat);
}
var maxMuxingQueueSize = encodingOptions.MaxMuxingQueueSize > 128
? encodingOptions.MaxMuxingQueueSize.ToString(CultureInfo.InvariantCulture)
var maxMuxingQueueSize = _encodingOptions.MaxMuxingQueueSize > 128
? _encodingOptions.MaxMuxingQueueSize.ToString(CultureInfo.InvariantCulture)
: "128";
return string.Format(
CultureInfo.InvariantCulture,
"{0} {1} -map_metadata -1 -map_chapters -1 -threads {2} {3} {4} {5} -copyts -avoid_negative_ts 0 -max_muxing_queue_size {6} -f hls -max_delay 5000000 -hls_time {7} -individual_header_trailer 0 -hls_segment_type {8} -start_number {9} -hls_segment_filename \"{10}\" -hls_playlist_type vod -hls_list_size 0 -y \"{11}\"",
inputModifier,
_encodingHelper.GetInputArgument(state, encodingOptions),
_encodingHelper.GetInputArgument(state, _encodingOptions),
threads,
mapArgs,
GetVideoArguments(state, encodingOptions, startNumber),
GetAudioArguments(state, encodingOptions),
GetVideoArguments(state, startNumber),
GetAudioArguments(state),
maxMuxingQueueSize,
state.SegmentLength.ToString(CultureInfo.InvariantCulture),
segmentFormat,
@@ -1427,7 +1426,12 @@ namespace Jellyfin.Api.Controllers
outputPath).Trim();
}
private string GetAudioArguments(StreamState state, EncodingOptions encodingOptions)
/// <summary>
/// Gets the audio arguments for transcoding.
/// </summary>
/// <param name="state">The <see cref="StreamState"/>.</param>
/// <returns>The command line arguments for audio transcoding.</returns>
private string GetAudioArguments(StreamState state)
{
if (state.AudioStream == null)
{
@@ -1468,7 +1472,7 @@ namespace Jellyfin.Api.Controllers
if (EncodingHelper.IsCopyCodec(audioCodec))
{
var videoCodec = _encodingHelper.GetVideoEncoder(state, encodingOptions);
var videoCodec = _encodingHelper.GetVideoEncoder(state, _encodingOptions);
if (EncodingHelper.IsCopyCodec(videoCodec) && state.EnableBreakOnNonKeyFrames(videoCodec))
{
@@ -1499,23 +1503,34 @@ namespace Jellyfin.Api.Controllers
args += " -ar " + state.OutputAudioSampleRate.Value.ToString(CultureInfo.InvariantCulture);
}
args += " " + _encodingHelper.GetAudioFilterParam(state, encodingOptions, true);
args += " " + _encodingHelper.GetAudioFilterParam(state, _encodingOptions, true);
return args;
}
private string GetVideoArguments(StreamState state, EncodingOptions encodingOptions, int startNumber)
/// <summary>
/// Gets the video arguments for transcoding.
/// </summary>
/// <param name="state">The <see cref="StreamState"/>.</param>
/// <param name="startNumber">The first number in the hls sequence.</param>
/// <returns>The command line arguments for video transcoding.</returns>
private string GetVideoArguments(StreamState state, int startNumber)
{
if (state.VideoStream == null)
{
return string.Empty;
}
if (!state.IsOutputVideo)
{
return string.Empty;
}
var codec = _encodingHelper.GetVideoEncoder(state, encodingOptions);
var codec = _encodingHelper.GetVideoEncoder(state, _encodingOptions);
var args = "-codec:v:0 " + codec;
// Prefer hvc1 to hev1
// Prefer hvc1 to hev1.
if (string.Equals(state.ActualOutputVideoCodec, "h265", StringComparison.OrdinalIgnoreCase)
|| string.Equals(state.ActualOutputVideoCodec, "hevc", StringComparison.OrdinalIgnoreCase)
|| string.Equals(codec, "h265", StringComparison.OrdinalIgnoreCase)
@@ -1529,7 +1544,7 @@ namespace Jellyfin.Api.Controllers
// args += " -mpegts_m2ts_mode 1";
// }
// See if we can save come cpu cycles by avoiding encoding
// See if we can save come cpu cycles by avoiding encoding.
if (EncodingHelper.IsCopyCodec(codec))
{
if (state.VideoStream != null && !string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
@@ -1553,22 +1568,21 @@ namespace Jellyfin.Api.Controllers
state.SegmentLength);
var framerate = state.VideoStream?.RealFrameRate;
if (framerate.HasValue)
{
// This is to make sure keyframe interval is limited to our segment,
// as forcing keyframes is not enough.
// Example: we encoded half of desired length, then codec detected
// scene cut and inserted a keyframe; next forced keyframe would
// be created outside of segment, which breaks seeking
// -sc_threshold 0 is used to prevent the hardware encoder from post processing to break the set keyframe
// be created outside of segment, which breaks seeking.
// -sc_threshold 0 is used to prevent the hardware encoder from post processing to break the set keyframe.
gopArg = string.Format(
CultureInfo.InvariantCulture,
" -g {0} -keyint_min {0} -sc_threshold 0",
Math.Ceiling(state.SegmentLength * framerate.Value));
}
args += " " + _encodingHelper.GetVideoQualityParam(state, codec, encodingOptions, "veryfast");
args += " " + _encodingHelper.GetVideoQualityParam(state, codec, _encodingOptions, DefaultEncoderPreset);
// Unable to force key frames using these encoders, set key frames by GOP.
if (string.Equals(codec, "h264_qsv", StringComparison.OrdinalIgnoreCase)
@@ -1602,16 +1616,15 @@ namespace Jellyfin.Api.Controllers
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
// This is for graphical subs
if (hasGraphicalSubs)
{
args += _encodingHelper.GetGraphicalSubtitleParam(state, encodingOptions, codec);
// Graphical subs overlay and resolution params.
args += _encodingHelper.GetGraphicalSubtitleParam(state, _encodingOptions, codec);
}
// Add resolution params, if specified
else
{
args += _encodingHelper.GetOutputSizeParam(state, encodingOptions, codec);
// Resolution params.
args += _encodingHelper.GetOutputSizeParam(state, _encodingOptions, codec);
}
// -start_at_zero is necessary to use with -ss when seeking,