From 57e5b59b93272bbbafeb1b57bdacc862c48f0996 Mon Sep 17 00:00:00 2001 From: nyanmisaka Date: Wed, 11 Nov 2020 17:08:50 +0800 Subject: adjust bitrate limit for HLS audio codecs --- .../MediaEncoding/EncodingHelper.cs | 50 ++++++++++++++-------- 1 file changed, 31 insertions(+), 19 deletions(-) (limited to 'MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs') diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs index 6255e1b61..e8b4869ee 100644 --- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs +++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs @@ -1390,7 +1390,7 @@ namespace MediaBrowser.Controller.MediaEncoding || string.Equals(codec, "hevc", StringComparison.OrdinalIgnoreCase) || string.Equals(codec, "vp9", StringComparison.OrdinalIgnoreCase)) { - return .5; + return .6; } return 1; @@ -1424,36 +1424,48 @@ namespace MediaBrowser.Controller.MediaEncoding public int? GetAudioBitrateParam(BaseEncodingJobOptions request, MediaStream audioStream) { - if (audioStream == null) - { - return null; - } - - if (request.AudioBitRate.HasValue) - { - // Don't encode any higher than this - return Math.Min(384000, request.AudioBitRate.Value); - } - - // Empty bitrate area is not allow on iOS - // Default audio bitrate to 128K if it is not being requested - // https://ffmpeg.org/ffmpeg-codecs.html#toc-Codec-Options - return 128000; + return GetAudioBitrateParam(request.AudioBitRate, request.AudioCodec, audioStream); } - public int? GetAudioBitrateParam(int? audioBitRate, MediaStream audioStream) + public int? GetAudioBitrateParam(int? audioBitRate, string audioCodec, MediaStream audioStream) { if (audioStream == null) { return null; } - if (audioBitRate.HasValue) + if (audioBitRate.HasValue && string.IsNullOrEmpty(audioCodec)) { - // Don't encode any higher than this return Math.Min(384000, audioBitRate.Value); } + if (audioBitRate.HasValue && !string.IsNullOrEmpty(audioCodec)) + { + 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 ((audioStream.Channels ?? 0) >= 6) + { + return Math.Min(640000, audioBitRate.Value); + } + + return Math.Min(384000, audioBitRate.Value); + } + + if (string.Equals(audioCodec, "flac", StringComparison.OrdinalIgnoreCase) + || string.Equals(audioCodec, "alac", StringComparison.OrdinalIgnoreCase)) + { + if ((audioStream.Channels ?? 0) >= 6) + { + return Math.Min(3584000, audioBitRate.Value); + } + + return Math.Min(1536000, audioBitRate.Value); + } + } + // Empty bitrate area is not allow on iOS // Default audio bitrate to 128K if it is not being requested // https://ffmpeg.org/ffmpeg-codecs.html#toc-Codec-Options -- cgit v1.2.3