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limit transcoding to level 41

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pull/702/head
Luke Pulverenti 8 years ago
parent 13004d2541
commit 3a4b0ea018
2 changed files with 85 additions and 43 deletions
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67
MediaBrowser.Api/Playback/BaseStreamingService.cs
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@ -337,9 +337,9 @@ namespace MediaBrowser.Api.Playback
/// Gets the video bitrate to specify on the command line
/// </summary>
/// <param name="state">The state.</param>
/// <param name="videoCodec">The video codec.</param>
/// <param name="videoEncoder">The video codec.</param>
/// <returns>System.String.</returns>
protected string GetVideoQualityParam(StreamState state, string videoCodec)
protected string GetVideoQualityParam(StreamState state, string videoEncoder)
{
var param = string.Empty;
@ -348,7 +348,7 @@ namespace MediaBrowser.Api.Playback
var encodingOptions = ApiEntryPoint.Instance.GetEncodingOptions();
if (string.Equals(videoCodec, "libx264", StringComparison.OrdinalIgnoreCase))
if (string.Equals(videoEncoder, "libx264", StringComparison.OrdinalIgnoreCase))
{
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";
@ -377,20 +377,20 @@ namespace MediaBrowser.Api.Playback
}
// 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";
}
// h264 (h264_nvenc)
else if (string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
else if (string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
{
param += "-preset default";
}
// 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
var profileScore = 0;
@ -417,23 +417,23 @@ namespace MediaBrowser.Api.Playback
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";
}
// asf/wmv
else if (string.Equals(videoCodec, "wmv2", StringComparison.OrdinalIgnoreCase))
else if (string.Equals(videoEncoder, "wmv2", StringComparison.OrdinalIgnoreCase))
{
param += "-qmin 2";
}
else if (string.Equals(videoCodec, "msmpeg4", StringComparison.OrdinalIgnoreCase))
else if (string.Equals(videoEncoder, "msmpeg4", StringComparison.OrdinalIgnoreCase))
{
param += "-mbd 2";
}
param += GetVideoBitrateParam(state, videoCodec);
param += GetVideoBitrateParam(state, videoEncoder);
var framerate = GetFramerateParam(state);
if (framerate.HasValue)
@ -448,8 +448,8 @@ namespace MediaBrowser.Api.Playback
if (!string.IsNullOrEmpty(state.VideoRequest.Profile))
{
if (!string.Equals(videoCodec, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
{
// not supported by h264_omx
param += " -profile:v " + state.VideoRequest.Profile;
@ -458,11 +458,13 @@ namespace MediaBrowser.Api.Playback
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
if (string.Equals(videoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase) ||
string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
if (string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) ||
string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
{
switch (state.VideoRequest.Level)
switch (level)
{
case "30":
param += " -level 3";
@ -492,20 +494,20 @@ namespace MediaBrowser.Api.Playback
param += " -level 5.2";
break;
default:
param += " -level " + state.VideoRequest.Level;
param += " -level " + level;
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) &&
!string.Equals(videoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
{
param = "-pix_fmt yuv420p " + param;
}
@ -513,6 +515,25 @@ namespace MediaBrowser.Api.Playback
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)
{
var volParam = string.Empty;

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

@ -595,23 +595,23 @@ namespace MediaBrowser.MediaEncoding.Encoder
/// Gets the video bitrate to specify on the command line
/// </summary>
/// <param name="state">The state.</param>
/// <param name="videoCodec">The video codec.</param>
/// <param name="videoEncoder">The video codec.</param>
/// <returns>System.String.</returns>
protected string GetVideoQualityParam(EncodingJob state, string videoCodec)
protected string GetVideoQualityParam(EncodingJob state, string videoEncoder)
{
var param = string.Empty;
var isVc1 = state.VideoStream != null &&
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 += " -crf 23";
}
else if (string.Equals(videoCodec, "libx265", StringComparison.OrdinalIgnoreCase))
else if (string.Equals(videoEncoder, "libx265", StringComparison.OrdinalIgnoreCase))
{
param = "-preset fast";
@ -619,20 +619,20 @@ namespace MediaBrowser.MediaEncoding.Encoder
}
// 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";
}
// h264 (h264_nvenc)
else if (string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
else if (string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
{
param = "-preset llhq";
}
// 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
var profileScore = 0;
@ -659,23 +659,23 @@ namespace MediaBrowser.MediaEncoding.Encoder
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";
}
// asf/wmv
else if (string.Equals(videoCodec, "wmv2", StringComparison.OrdinalIgnoreCase))
else if (string.Equals(videoEncoder, "wmv2", StringComparison.OrdinalIgnoreCase))
{
param = "-qmin 2";
}
else if (string.Equals(videoCodec, "msmpeg4", StringComparison.OrdinalIgnoreCase))
else if (string.Equals(videoEncoder, "msmpeg4", StringComparison.OrdinalIgnoreCase))
{
param = "-mbd 2";
}
param += GetVideoBitrateParam(state, videoCodec);
param += GetVideoBitrateParam(state, videoEncoder);
var framerate = GetFramerateParam(state);
if (framerate.HasValue)
@ -690,8 +690,8 @@ namespace MediaBrowser.MediaEncoding.Encoder
if (!string.IsNullOrEmpty(state.Options.Profile))
{
if (!string.Equals(videoCodec, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
{
// not supported by h264_omx
param += " -profile:v " + state.Options.Profile;
@ -702,9 +702,11 @@ namespace MediaBrowser.MediaEncoding.Encoder
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
if (string.Equals(videoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase) ||
string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
if (string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) ||
string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
{
switch (levelString)
{
@ -740,16 +742,16 @@ namespace MediaBrowser.MediaEncoding.Encoder
break;
}
}
else if (!string.Equals(videoCodec, "h264_omx", StringComparison.OrdinalIgnoreCase))
else if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase))
{
param += " -level " + levelString;
}
}
if (!string.Equals(videoCodec, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_nvenc", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
{
param = "-pix_fmt yuv420p " + param;
}
@ -757,6 +759,25 @@ namespace MediaBrowser.MediaEncoding.Encoder
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)
{
var bitrate = state.OutputVideoBitrate;

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