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Fix the fMP4 HLS audio sync issue on Safari

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This commit is contained in:
nyanmisaka
2022-03-09 21:28:58 +08:00
parent dacbfc83ff
commit b2c58338f2
2 changed files with 25 additions and 17 deletions
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27
MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
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@@ -842,8 +842,9 @@ namespace MediaBrowser.Controller.MediaEncoding
/// </summary>
/// <param name="state">Encoding state.</param>
/// <param name="options">Encoding options.</param>
/// <param name="segmentContainer">Segment Container.</param>
/// <returns>Input arguments.</returns>
public string GetInputArgument(EncodingJobInfo state, EncodingOptions options)
public string GetInputArgument(EncodingJobInfo state, EncodingOptions options, string segmentContainer)
{
var arg = new StringBuilder();
var inputVidHwaccelArgs = GetInputVideoHwaccelArgs(state, options);
@@ -880,7 +881,7 @@ namespace MediaBrowser.Controller.MediaEncoding
}
// Also seek the external subtitles stream.
var seekSubParam = GetFastSeekCommandLineParameter(state, options);
var seekSubParam = GetFastSeekCommandLineParameter(state, options, segmentContainer);
if (!string.IsNullOrEmpty(seekSubParam))
{
arg.Append(' ').Append(seekSubParam);
@@ -897,7 +898,7 @@ namespace MediaBrowser.Controller.MediaEncoding
if (state.AudioStream != null && state.AudioStream.IsExternal)
{
// Also seek the external audio stream.
var seekAudioParam = GetFastSeekCommandLineParameter(state, options);
var seekAudioParam = GetFastSeekCommandLineParameter(state, options, segmentContainer);
if (!string.IsNullOrEmpty(seekAudioParam))
{
arg.Append(' ').Append(seekAudioParam);
@@ -2167,9 +2168,10 @@ namespace MediaBrowser.Controller.MediaEncoding
/// </summary>
/// <param name="state">The state.</param>
/// <param name="options">The options.</param>
/// <param name="segmentContainer">Segment Container.</param>
/// <returns>System.String.</returns>
/// <value>The fast seek command line parameter.</value>
public string GetFastSeekCommandLineParameter(EncodingJobInfo state, EncodingOptions options)
public string GetFastSeekCommandLineParameter(EncodingJobInfo state, EncodingOptions options, string segmentContainer)
{
var time = state.BaseRequest.StartTimeTicks ?? 0;
var seekParam = string.Empty;
@@ -2181,11 +2183,14 @@ namespace MediaBrowser.Controller.MediaEncoding
if (state.IsVideoRequest)
{
var outputVideoCodec = GetVideoEncoder(state, options);
var segmentFormat = GetSegmentFileExtension(segmentContainer).TrimStart('.');
// Important: If this is ever re-enabled, make sure not to use it with wtv because it breaks seeking
// Disable -noaccurate_seek on mpegts container due to the timestamps issue on some clients,
// but it's still required for fMP4 container otherwise the audio can't be synced to the video.
if (!string.Equals(state.InputContainer, "wtv", StringComparison.OrdinalIgnoreCase)
&& !string.Equals(segmentFormat, "ts", StringComparison.OrdinalIgnoreCase)
&& state.TranscodingType != TranscodingJobType.Progressive
&& state.TranscodingType != TranscodingJobType.Hls
&& !state.EnableBreakOnNonKeyFrames(outputVideoCodec)
&& (state.BaseRequest.StartTimeTicks ?? 0) > 0)
{
@@ -4836,7 +4841,7 @@ namespace MediaBrowser.Controller.MediaEncoding
}
}
public string GetInputModifier(EncodingJobInfo state, EncodingOptions encodingOptions)
public string GetInputModifier(EncodingJobInfo state, EncodingOptions encodingOptions, string segmentContainer)
{
var inputModifier = string.Empty;
var probeSizeArgument = string.Empty;
@@ -4872,7 +4877,7 @@ namespace MediaBrowser.Controller.MediaEncoding
inputModifier = inputModifier.Trim();
inputModifier += " " + GetFastSeekCommandLineParameter(state, encodingOptions);
inputModifier += " " + GetFastSeekCommandLineParameter(state, encodingOptions, segmentContainer);
inputModifier = inputModifier.Trim();
if (state.InputProtocol == MediaProtocol.Rtsp)
@@ -5179,13 +5184,13 @@ namespace MediaBrowser.Controller.MediaEncoding
var threads = GetNumberOfThreads(state, encodingOptions, videoCodec);
var inputModifier = GetInputModifier(state, encodingOptions);
var inputModifier = GetInputModifier(state, encodingOptions, null);
return string.Format(
CultureInfo.InvariantCulture,
"{0} {1}{2} {3} {4} -map_metadata -1 -map_chapters -1 -threads {5} {6}{7}{8} -y \"{9}\"",
inputModifier,
GetInputArgument(state, encodingOptions),
GetInputArgument(state, encodingOptions, null),
keyFrame,
GetMapArgs(state),
GetProgressiveVideoArguments(state, encodingOptions, videoCodec, defaultPreset),
@@ -5367,13 +5372,13 @@ namespace MediaBrowser.Controller.MediaEncoding
var threads = GetNumberOfThreads(state, encodingOptions, null);
var inputModifier = GetInputModifier(state, encodingOptions);
var inputModifier = GetInputModifier(state, encodingOptions, null);
return string.Format(
CultureInfo.InvariantCulture,
"{0} {1}{7}{8} -threads {2}{3} {4} -id3v2_version 3 -write_id3v1 1{6} -y \"{5}\"",
inputModifier,
GetInputArgument(state, encodingOptions),
GetInputArgument(state, encodingOptions, null),
threads,
" -vn",
string.Join(' ', audioTranscodeParams),