diff options
Diffstat (limited to 'MediaBrowser.Model/Dlna')
| -rw-r--r-- | MediaBrowser.Model/Dlna/ResolutionNormalizer.cs | 12 | ||||
| -rw-r--r-- | MediaBrowser.Model/Dlna/StreamBuilder.cs | 72 | ||||
| -rw-r--r-- | MediaBrowser.Model/Dlna/StreamInfo.cs | 2 |
3 files changed, 71 insertions, 15 deletions
diff --git a/MediaBrowser.Model/Dlna/ResolutionNormalizer.cs b/MediaBrowser.Model/Dlna/ResolutionNormalizer.cs index a4305c8104..65fccbdd41 100644 --- a/MediaBrowser.Model/Dlna/ResolutionNormalizer.cs +++ b/MediaBrowser.Model/Dlna/ResolutionNormalizer.cs @@ -15,7 +15,7 @@ namespace MediaBrowser.Model.Dlna new ResolutionConfiguration(720, 950000), new ResolutionConfiguration(1280, 2500000), new ResolutionConfiguration(1920, 4000000), - new ResolutionConfiguration(2560, 8000000), + new ResolutionConfiguration(2560, 20000000), new ResolutionConfiguration(3840, 35000000) }; @@ -29,7 +29,7 @@ namespace MediaBrowser.Model.Dlna int? maxWidth, int? maxHeight) { - // If the bitrate isn't changing, then don't downlscale the resolution + // If the bitrate isn't changing, then don't downscale the resolution if (inputBitrate.HasValue && outputBitrate >= inputBitrate.Value) { if (maxWidth.HasValue || maxHeight.HasValue) @@ -80,11 +80,11 @@ namespace MediaBrowser.Model.Dlna private static double GetVideoBitrateScaleFactor(string codec) { - if (string.Equals(codec, "h265", StringComparison.OrdinalIgnoreCase) || - string.Equals(codec, "hevc", StringComparison.OrdinalIgnoreCase) || - string.Equals(codec, "vp9", StringComparison.OrdinalIgnoreCase)) + if (string.Equals(codec, "h265", StringComparison.OrdinalIgnoreCase) + || string.Equals(codec, "hevc", StringComparison.OrdinalIgnoreCase) + || string.Equals(codec, "vp9", StringComparison.OrdinalIgnoreCase)) { - return .5; + return .6; } return 1; diff --git a/MediaBrowser.Model/Dlna/StreamBuilder.cs b/MediaBrowser.Model/Dlna/StreamBuilder.cs index 43d1f3b443..59c9810009 100644 --- a/MediaBrowser.Model/Dlna/StreamBuilder.cs +++ b/MediaBrowser.Model/Dlna/StreamBuilder.cs @@ -872,11 +872,34 @@ namespace MediaBrowser.Model.Dlna return playlistItem; } - private static int GetDefaultAudioBitrateIfUnknown(MediaStream audioStream) + private static int GetDefaultAudioBitrate(string audioCodec, int? audioChannels) { - if ((audioStream.Channels ?? 0) >= 6) + if (!string.IsNullOrEmpty(audioCodec)) { - return 384000; + // Default to a higher bitrate for stream copy + if (string.Equals(audioCodec, "aac", StringComparison.OrdinalIgnoreCase) + || string.Equals(audioCodec, "mp3", StringComparison.OrdinalIgnoreCase) + || string.Equals(audioCodec, "ac3", StringComparison.OrdinalIgnoreCase) + || string.Equals(audioCodec, "eac3", StringComparison.OrdinalIgnoreCase)) + { + if ((audioChannels ?? 0) < 2) + { + return 128000; + } + + return (audioChannels ?? 0) >= 6 ? 640000 : 384000; + } + + if (string.Equals(audioCodec, "flac", StringComparison.OrdinalIgnoreCase) + || string.Equals(audioCodec, "alac", StringComparison.OrdinalIgnoreCase)) + { + if ((audioChannels ?? 0) < 2) + { + return 768000; + } + + return (audioChannels ?? 0) >= 6 ? 3584000 : 1536000; + } } return 192000; @@ -897,14 +920,27 @@ namespace MediaBrowser.Model.Dlna } else { - if (targetAudioChannels.HasValue && audioStream.Channels.HasValue && targetAudioChannels.Value < audioStream.Channels.Value) + if (targetAudioChannels.HasValue + && audioStream.Channels.HasValue + && audioStream.Channels.Value > targetAudioChannels.Value) { - // Reduce the bitrate if we're downmixing - defaultBitrate = targetAudioChannels.Value < 2 ? 128000 : 192000; + // Reduce the bitrate if we're downmixing. + defaultBitrate = GetDefaultAudioBitrate(targetAudioCodec, targetAudioChannels); + } + else if (targetAudioChannels.HasValue + && audioStream.Channels.HasValue + && audioStream.Channels.Value <= targetAudioChannels.Value + && !string.IsNullOrEmpty(audioStream.Codec) + && targetAudioCodecs != null + && targetAudioCodecs.Length > 0 + && !Array.Exists(targetAudioCodecs, elem => string.Equals(audioStream.Codec, elem, StringComparison.OrdinalIgnoreCase))) + { + // Shift the bitrate if we're transcoding to a different audio codec. + defaultBitrate = GetDefaultAudioBitrate(targetAudioCodec, audioStream.Channels.Value); } else { - defaultBitrate = audioStream.BitRate ?? GetDefaultAudioBitrateIfUnknown(audioStream); + defaultBitrate = audioStream.BitRate ?? GetDefaultAudioBitrate(targetAudioCodec, targetAudioChannels); } // Seeing webm encoding failures when source has 1 audio channel and 22k bitrate. @@ -938,8 +974,28 @@ namespace MediaBrowser.Model.Dlna { return 448000; } + else if (totalBitrate <= 4000000) + { + return 640000; + } + else if (totalBitrate <= 5000000) + { + return 768000; + } + else if (totalBitrate <= 10000000) + { + return 1536000; + } + else if (totalBitrate <= 15000000) + { + return 2304000; + } + else if (totalBitrate <= 20000000) + { + return 3584000; + } - return 640000; + return 7168000; } private (PlayMethod?, List<TranscodeReason>) GetVideoDirectPlayProfile( diff --git a/MediaBrowser.Model/Dlna/StreamInfo.cs b/MediaBrowser.Model/Dlna/StreamInfo.cs index 93ea82c1c5..55b12ae810 100644 --- a/MediaBrowser.Model/Dlna/StreamInfo.cs +++ b/MediaBrowser.Model/Dlna/StreamInfo.cs @@ -794,7 +794,7 @@ namespace MediaBrowser.Model.Dlna public int? GetTargetAudioChannels(string codec) { - var defaultValue = GlobalMaxAudioChannels; + var defaultValue = GlobalMaxAudioChannels ?? TranscodingMaxAudioChannels; var value = GetOption(codec, "audiochannels"); if (string.IsNullOrEmpty(value)) |