public MediaInfoModel GetMediaInfo(string filename)
{
if (!_diskProvider.FileExists(filename))
{
throw new FileNotFoundException("Media file does not exist: " + filename);
}
// TODO: Cache media info by path, mtime and length so we don't need to read files multiple times
try
{
_logger.Debug("Getting media info from {0}", filename);
var ffprobeOutput = FFProbe.GetStreamJson(filename, ffOptions: new FFOptions {
ExtraArguments = "-probesize 50000000"
});
var analysis = FFProbe.AnalyseStreamJson(ffprobeOutput);
if (analysis.PrimaryAudioStream?.ChannelLayout.IsNullOrWhiteSpace() ?? true)
{
ffprobeOutput = FFProbe.GetStreamJson(filename, ffOptions: new FFOptions {
ExtraArguments = "-probesize 150000000 -analyzeduration 150000000"
});
analysis = FFProbe.AnalyseStreamJson(ffprobeOutput);
}
var mediaInfoModel = new MediaInfoModel();
mediaInfoModel.ContainerFormat = analysis.Format.FormatName;
mediaInfoModel.VideoFormat = analysis.PrimaryVideoStream?.CodecName;
mediaInfoModel.VideoCodecID = analysis.PrimaryVideoStream?.CodecTagString;
mediaInfoModel.VideoProfile = analysis.PrimaryVideoStream?.Profile;
mediaInfoModel.VideoBitrate = analysis.PrimaryVideoStream?.BitRate ?? 0;
mediaInfoModel.VideoMultiViewCount = 1;
mediaInfoModel.VideoBitDepth = GetPixelFormat(analysis.PrimaryVideoStream?.PixelFormat)?.Components.Min(x => x.BitDepth) ?? 8;
mediaInfoModel.VideoColourPrimaries = analysis.PrimaryVideoStream?.ColorPrimaries;
mediaInfoModel.VideoTransferCharacteristics = analysis.PrimaryVideoStream?.ColorTransfer;
mediaInfoModel.DoviConfigurationRecord = analysis.PrimaryVideoStream?.SideDataList?.Find(x => x.GetType().Name == nameof(DoviConfigurationRecordSideData)) as DoviConfigurationRecordSideData;
mediaInfoModel.Height = analysis.PrimaryVideoStream?.Height ?? 0;
mediaInfoModel.Width = analysis.PrimaryVideoStream?.Width ?? 0;
mediaInfoModel.AudioFormat = analysis.PrimaryAudioStream?.CodecName;
mediaInfoModel.AudioCodecID = analysis.PrimaryAudioStream?.CodecTagString;
mediaInfoModel.AudioProfile = analysis.PrimaryAudioStream?.Profile;
mediaInfoModel.AudioBitrate = analysis.PrimaryAudioStream?.BitRate ?? 0;
mediaInfoModel.RunTime = GetBestRuntime(analysis.PrimaryAudioStream?.Duration, analysis.PrimaryVideoStream?.Duration, analysis.Format.Duration);
mediaInfoModel.AudioStreamCount = analysis.AudioStreams.Count;
mediaInfoModel.AudioChannels = analysis.PrimaryAudioStream?.Channels ?? 0;
mediaInfoModel.AudioChannelPositions = analysis.PrimaryAudioStream?.ChannelLayout;
mediaInfoModel.VideoFps = analysis.PrimaryVideoStream?.FrameRate ?? 0;
mediaInfoModel.AudioLanguages = analysis.AudioStreams?.Select(x => x.Language)
.Where(l => l.IsNotNullOrWhiteSpace())
.ToList();
mediaInfoModel.Subtitles = analysis.SubtitleStreams?.Select(x => x.Language)
.Where(l => l.IsNotNullOrWhiteSpace())
.ToList();
mediaInfoModel.ScanType = "Progressive";
mediaInfoModel.RawStreamData = ffprobeOutput;
mediaInfoModel.SchemaRevision = CURRENT_MEDIA_INFO_SCHEMA_REVISION;
FFProbeFrames frames = null;
// if it looks like PQ10 or similar HDR, do a frame analysis to figure out which type it is
if (PqTransferFunctions.Contains(mediaInfoModel.VideoTransferCharacteristics))
{
var frameOutput = FFProbe.GetFrameJson(filename, ffOptions: new () { ExtraArguments = "-read_intervals \"%+#1\" -select_streams v" });
mediaInfoModel.RawFrameData = frameOutput;
frames = FFProbe.AnalyseFrameJson(frameOutput);
}
var streamSideData = analysis.PrimaryVideoStream?.SideDataList ?? new ();
var framesSideData = frames?.Frames?.Count > 0 ? frames?.Frames[0]?.SideDataList ?? new () : new ();
var sideData = streamSideData.Concat(framesSideData).ToList();
mediaInfoModel.VideoHdrFormat = GetHdrFormat(mediaInfoModel.VideoBitDepth, mediaInfoModel.VideoColourPrimaries, mediaInfoModel.VideoTransferCharacteristics, sideData);
return(mediaInfoModel);
}
catch (Exception ex)
{
_logger.Error(ex, "Unable to parse media info from file: {0}", filename);
}
return(null);
}
