diff options
Diffstat (limited to 'MediaBrowser.Model/Dlna/StreamBuilder.cs')
| -rw-r--r-- | MediaBrowser.Model/Dlna/StreamBuilder.cs | 72 |
1 files changed, 64 insertions, 8 deletions
diff --git a/MediaBrowser.Model/Dlna/StreamBuilder.cs b/MediaBrowser.Model/Dlna/StreamBuilder.cs index 43d1f3b44..59c981000 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( |