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limit transcoding to level 41

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This commit is contained in:
Luke Pulverenti 2016-09-07 22:55:54 -04:00
parent 13004d2541
commit 3a4b0ea018
2 changed files with 85 additions and 43 deletions
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67
MediaBrowser.Api/Playback/BaseStreamingService.cs
View File

@ -337,9 +337,9 @@ namespace MediaBrowser.Api.Playback
/// Gets the video bitrate to specify on the command line /// Gets the video bitrate to specify on the command line
/// </summary> /// </summary>
/// <param name="state">The state.</param> /// <param name="state">The state.</param>
/// <param name="videoCodec">The video codec.</param> /// <param name="videoEncoder">The video codec.</param>
/// <returns>System.String.</returns> /// <returns>System.String.</returns>
protected string GetVideoQualityParam(StreamState state, string videoCodec) protected string GetVideoQualityParam(StreamState state, string videoEncoder)
{ {
var param = string.Empty; var param = string.Empty;
@ -348,7 +348,7 @@ namespace MediaBrowser.Api.Playback
var encodingOptions = ApiEntryPoint.Instance.GetEncodingOptions(); var encodingOptions = ApiEntryPoint.Instance.GetEncodingOptions();
if (string.Equals(videoCodec, "libx264", StringComparison.OrdinalIgnoreCase)) if (string.Equals(videoEncoder, "libx264", StringComparison.OrdinalIgnoreCase))
{ {
if (!string.IsNullOrWhiteSpace(encodingOptions.H264Preset)) if (!string.IsNullOrWhiteSpace(encodingOptions.H264Preset))
{ {
@ -369,7 +369,7 @@ namespace MediaBrowser.Api.Playback
} }
} }
else if (string.Equals(videoCodec, "libx265", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "libx265", StringComparison.OrdinalIgnoreCase))
{ {
param += "-preset fast"; param += "-preset fast";
@ -377,20 +377,20 @@ namespace MediaBrowser.Api.Playback
} }
// h264 (h264_qsv) // h264 (h264_qsv)
else if (string.Equals(videoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase))
{ {
param += "-preset 7 -look_ahead 0"; param += "-preset 7 -look_ahead 0";
} }
// h264 (h264_nvenc) // h264 (h264_nvenc)
else if (string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
{ {
param += "-preset default"; param += "-preset default";
} }
// webm // webm
else if (string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "libvpx", StringComparison.OrdinalIgnoreCase))
{ {
// Values 0-3, 0 being highest quality but slower // Values 0-3, 0 being highest quality but slower
var profileScore = 0; var profileScore = 0;
@ -417,23 +417,23 @@ namespace MediaBrowser.Api.Playback
qmax); qmax);
} }
else if (string.Equals(videoCodec, "mpeg4", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "mpeg4", StringComparison.OrdinalIgnoreCase))
{ {
param += "-mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -bf 2"; param += "-mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -bf 2";
} }
// asf/wmv // asf/wmv
else if (string.Equals(videoCodec, "wmv2", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "wmv2", StringComparison.OrdinalIgnoreCase))
{ {
param += "-qmin 2"; param += "-qmin 2";
} }
else if (string.Equals(videoCodec, "msmpeg4", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "msmpeg4", StringComparison.OrdinalIgnoreCase))
{ {
param += "-mbd 2"; param += "-mbd 2";
} }
param += GetVideoBitrateParam(state, videoCodec); param += GetVideoBitrateParam(state, videoEncoder);
var framerate = GetFramerateParam(state); var framerate = GetFramerateParam(state);
if (framerate.HasValue) if (framerate.HasValue)
@ -448,8 +448,8 @@ namespace MediaBrowser.Api.Playback
if (!string.IsNullOrEmpty(state.VideoRequest.Profile)) if (!string.IsNullOrEmpty(state.VideoRequest.Profile))
{ {
if (!string.Equals(videoCodec, "h264_omx", StringComparison.OrdinalIgnoreCase) && if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase)) !string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
{ {
// not supported by h264_omx // not supported by h264_omx
param += " -profile:v " + state.VideoRequest.Profile; param += " -profile:v " + state.VideoRequest.Profile;
@ -458,11 +458,13 @@ namespace MediaBrowser.Api.Playback
if (!string.IsNullOrEmpty(state.VideoRequest.Level)) if (!string.IsNullOrEmpty(state.VideoRequest.Level))
{ {
var level = NormalizeTranscodingLevel(state.OutputVideoCodec, state.VideoRequest.Level);
// h264_qsv and h264_nvenc expect levels to be expressed as a decimal. libx264 supports decimal and non-decimal format // h264_qsv and h264_nvenc expect levels to be expressed as a decimal. libx264 supports decimal and non-decimal format
if (string.Equals(videoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase) || if (string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) ||
string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase)) string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
{ {
switch (state.VideoRequest.Level) switch (level)
{ {
case "30": case "30":
param += " -level 3"; param += " -level 3";
@ -492,20 +494,20 @@ namespace MediaBrowser.Api.Playback
param += " -level 5.2"; param += " -level 5.2";
break; break;
default: default:
param += " -level " + state.VideoRequest.Level; param += " -level " + level;
break; break;
} }
} }
else if (!string.Equals(videoCodec, "h264_omx", StringComparison.OrdinalIgnoreCase)) else if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase))
{ {
param += " -level " + state.VideoRequest.Level; param += " -level " + level;
} }
} }
if (!string.Equals(videoCodec, "h264_omx", StringComparison.OrdinalIgnoreCase) && if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase) && !string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase) && !string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase)) !string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
{ {
param = "-pix_fmt yuv420p " + param; param = "-pix_fmt yuv420p " + param;
} }
@ -513,6 +515,25 @@ namespace MediaBrowser.Api.Playback
return param; return param;
} }
private string NormalizeTranscodingLevel(string videoCodec, string level)
{
double requestLevel;
// Clients may direct play higher than level 41, but there's no reason to transcode higher
if (double.TryParse(level, NumberStyles.Any, UsCulture, out requestLevel))
{
if (string.Equals(videoCodec, "h264", StringComparison.OrdinalIgnoreCase))
{
if (requestLevel > 41)
{
return "41";
}
}
}
return level;
}
protected string GetAudioFilterParam(StreamState state, bool isHls) protected string GetAudioFilterParam(StreamState state, bool isHls)
{ {
var volParam = string.Empty; var volParam = string.Empty;

61
MediaBrowser.MediaEncoding/Encoder/BaseEncoder.cs
View File

@ -595,23 +595,23 @@ namespace MediaBrowser.MediaEncoding.Encoder
/// Gets the video bitrate to specify on the command line /// Gets the video bitrate to specify on the command line
/// </summary> /// </summary>
/// <param name="state">The state.</param> /// <param name="state">The state.</param>
/// <param name="videoCodec">The video codec.</param> /// <param name="videoEncoder">The video codec.</param>
/// <returns>System.String.</returns> /// <returns>System.String.</returns>
protected string GetVideoQualityParam(EncodingJob state, string videoCodec) protected string GetVideoQualityParam(EncodingJob state, string videoEncoder)
{ {
var param = string.Empty; var param = string.Empty;
var isVc1 = state.VideoStream != null && var isVc1 = state.VideoStream != null &&
string.Equals(state.VideoStream.Codec, "vc1", StringComparison.OrdinalIgnoreCase); string.Equals(state.VideoStream.Codec, "vc1", StringComparison.OrdinalIgnoreCase);
if (string.Equals(videoCodec, "libx264", StringComparison.OrdinalIgnoreCase)) if (string.Equals(videoEncoder, "libx264", StringComparison.OrdinalIgnoreCase))
{ {
param = "-preset superfast"; param = "-preset superfast";
param += " -crf 23"; param += " -crf 23";
} }
else if (string.Equals(videoCodec, "libx265", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "libx265", StringComparison.OrdinalIgnoreCase))
{ {
param = "-preset fast"; param = "-preset fast";
@ -619,20 +619,20 @@ namespace MediaBrowser.MediaEncoding.Encoder
} }
// h264 (h264_qsv) // h264 (h264_qsv)
else if (string.Equals(videoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase))
{ {
param = "-preset 7 -look_ahead 0"; param = "-preset 7 -look_ahead 0";
} }
// h264 (h264_nvenc) // h264 (h264_nvenc)
else if (string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
{ {
param = "-preset llhq"; param = "-preset llhq";
} }
// webm // webm
else if (string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "libvpx", StringComparison.OrdinalIgnoreCase))
{ {
// Values 0-3, 0 being highest quality but slower // Values 0-3, 0 being highest quality but slower
var profileScore = 0; var profileScore = 0;
@ -659,23 +659,23 @@ namespace MediaBrowser.MediaEncoding.Encoder
qmax); qmax);
} }
else if (string.Equals(videoCodec, "mpeg4", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "mpeg4", StringComparison.OrdinalIgnoreCase))
{ {
param = "-mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -bf 2"; param = "-mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -bf 2";
} }
// asf/wmv // asf/wmv
else if (string.Equals(videoCodec, "wmv2", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "wmv2", StringComparison.OrdinalIgnoreCase))
{ {
param = "-qmin 2"; param = "-qmin 2";
} }
else if (string.Equals(videoCodec, "msmpeg4", StringComparison.OrdinalIgnoreCase)) else if (string.Equals(videoEncoder, "msmpeg4", StringComparison.OrdinalIgnoreCase))
{ {
param = "-mbd 2"; param = "-mbd 2";
} }
param += GetVideoBitrateParam(state, videoCodec); param += GetVideoBitrateParam(state, videoEncoder);
var framerate = GetFramerateParam(state); var framerate = GetFramerateParam(state);
if (framerate.HasValue) if (framerate.HasValue)
@ -690,8 +690,8 @@ namespace MediaBrowser.MediaEncoding.Encoder
if (!string.IsNullOrEmpty(state.Options.Profile)) if (!string.IsNullOrEmpty(state.Options.Profile))
{ {
if (!string.Equals(videoCodec, "h264_omx", StringComparison.OrdinalIgnoreCase) && if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase)) !string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
{ {
// not supported by h264_omx // not supported by h264_omx
param += " -profile:v " + state.Options.Profile; param += " -profile:v " + state.Options.Profile;
@ -702,9 +702,11 @@ namespace MediaBrowser.MediaEncoding.Encoder
if (!string.IsNullOrEmpty(levelString)) if (!string.IsNullOrEmpty(levelString))
{ {
levelString = NormalizeTranscodingLevel(state.OutputVideoCodec, levelString);
// h264_qsv and h264_nvenc expect levels to be expressed as a decimal. libx264 supports decimal and non-decimal format // h264_qsv and h264_nvenc expect levels to be expressed as a decimal. libx264 supports decimal and non-decimal format
if (string.Equals(videoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase) || if (string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) ||
string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase)) string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
{ {
switch (levelString) switch (levelString)
{ {
@ -740,16 +742,16 @@ namespace MediaBrowser.MediaEncoding.Encoder
break; break;
} }
} }
else if (!string.Equals(videoCodec, "h264_omx", StringComparison.OrdinalIgnoreCase)) else if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase))
{ {
param += " -level " + levelString; param += " -level " + levelString;
} }
} }
if (!string.Equals(videoCodec, "h264_omx", StringComparison.OrdinalIgnoreCase) && if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase) && !string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase) && !string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase)) !string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
{ {
param = "-pix_fmt yuv420p " + param; param = "-pix_fmt yuv420p " + param;
} }
@ -757,6 +759,25 @@ namespace MediaBrowser.MediaEncoding.Encoder
return param; return param;
} }
private string NormalizeTranscodingLevel(string videoCodec, string level)
{
double requestLevel;
// Clients may direct play higher than level 41, but there's no reason to transcode higher
if (double.TryParse(level, NumberStyles.Any, UsCulture, out requestLevel))
{
if (string.Equals(videoCodec, "h264", StringComparison.OrdinalIgnoreCase))
{
if (requestLevel > 41)
{
return "41";
}
}
}
return level;
}
protected string GetVideoBitrateParam(EncodingJob state, string videoCodec) protected string GetVideoBitrateParam(EncodingJob state, string videoCodec)
{ {
var bitrate = state.OutputVideoBitrate; var bitrate = state.OutputVideoBitrate;