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unify encodng param creation

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This commit is contained in:
Luke Pulverenti
2017-03-19 14:59:05 -04:00
parent 59ac045c6b
commit 38e05b11e2
13 changed files with 180 additions and 295 deletions
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108
MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
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@@ -1773,6 +1773,114 @@ namespace MediaBrowser.Controller.MediaEncoding
return args;
}
public string GetProgressiveVideoFullCommandLine(EncodingJobInfo state, EncodingOptions encodingOptions, string outputPath, string defaultH264Preset)
{
// Get the output codec name
var videoCodec = GetVideoEncoder(state, encodingOptions);
var format = string.Empty;
var keyFrame = string.Empty;
if (string.Equals(Path.GetExtension(outputPath), ".mp4", StringComparison.OrdinalIgnoreCase) &&
state.BaseRequest.Context == EncodingContext.Streaming)
{
// Comparison: https://github.com/jansmolders86/mediacenterjs/blob/master/lib/transcoding/desktop.js
format = " -f mp4 -movflags frag_keyframe+empty_moov";
}
var threads = GetNumberOfThreads(state, encodingOptions, string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase));
var inputModifier = GetInputModifier(state, encodingOptions);
return string.Format("{0} {1}{2} {3} {4} -map_metadata -1 -map_chapters -1 -threads {5} {6}{7}{8} -y \"{9}\"",
inputModifier,
GetInputArgument(state, encodingOptions),
keyFrame,
GetMapArgs(state),
GetProgressiveVideoArguments(state, encodingOptions, videoCodec, defaultH264Preset),
threads,
GetProgressiveVideoAudioArguments(state, encodingOptions),
GetSubtitleEmbedArguments(state),
format,
outputPath
).Trim();
}
public string GetProgressiveVideoArguments(EncodingJobInfo state, EncodingOptions encodingOptions, string videoCodec, string defaultH264Preset)
{
var args = "-codec:v:0 " + videoCodec;
if (state.EnableMpegtsM2TsMode)
{
args += " -mpegts_m2ts_mode 1";
}
if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase))
{
if (state.VideoStream != null && IsH264(state.VideoStream) && string.Equals(state.OutputContainer, "ts", StringComparison.OrdinalIgnoreCase) && !string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
{
args += " -bsf:v h264_mp4toannexb";
}
if (state.RunTimeTicks.HasValue && state.BaseRequest.CopyTimestamps)
{
args += " -copyts -avoid_negative_ts disabled -start_at_zero";
}
if (!state.RunTimeTicks.HasValue)
{
args += " -flags -global_header -fflags +genpts";
}
return args;
}
var keyFrameArg = string.Format(" -force_key_frames \"expr:gte(t,n_forced*{0})\"",
5.ToString(_usCulture));
args += keyFrameArg;
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.BaseRequest.SubtitleMethod == SubtitleDeliveryMethod.Encode;
var hasCopyTs = false;
// Add resolution params, if specified
if (!hasGraphicalSubs)
{
var outputSizeParam = GetOutputSizeParam(state, videoCodec);
args += outputSizeParam;
hasCopyTs = outputSizeParam.IndexOf("copyts", StringComparison.OrdinalIgnoreCase) != -1;
}
if (state.RunTimeTicks.HasValue && state.BaseRequest.CopyTimestamps)
{
if (!hasCopyTs)
{
args += " -copyts";
}
args += " -avoid_negative_ts disabled -start_at_zero";
}
var qualityParam = GetVideoQualityParam(state, videoCodec, encodingOptions, defaultH264Preset);
if (!string.IsNullOrEmpty(qualityParam))
{
args += " " + qualityParam.Trim();
}
// This is for internal graphical subs
if (hasGraphicalSubs)
{
args += GetGraphicalSubtitleParam(state, videoCodec);
}
if (!state.RunTimeTicks.HasValue)
{
args += " -flags -global_header";
}
return args;
}
public string GetProgressiveVideoAudioArguments(EncodingJobInfo state, EncodingOptions encodingOptions)
{
// If the video doesn't have an audio stream, return a default.