fix merge conflict
This commit is contained in:
Luke Pulverenti
parent
8211e3daeb
commit
949d23f06a
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@ -135,7 +135,9 @@ namespace MediaBrowser.MediaEncoding.Encoder
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var inputFiles = MediaEncoderHelpers.GetInputArgument(FileSystem, request.InputPath, request.Protocol, request.MountedIso, request.PlayableStreamFileNames);
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return GetMediaInfoInternal(GetInputArgument(inputFiles, request.Protocol), request.InputPath, request.Protocol, extractChapters,
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var extractKeyFrameInterval = request.ExtractKeyFrameInterval && request.Protocol == MediaProtocol.File && request.VideoType == VideoType.VideoFile;
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return GetMediaInfoInternal(GetInputArgument(inputFiles, request.Protocol), request.InputPath, request.Protocol, extractChapters, extractKeyFrameInterval,
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GetProbeSizeArgument(inputFiles, request.Protocol), request.MediaType == DlnaProfileType.Audio, request.VideoType, cancellationToken);
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}
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@ -169,16 +171,18 @@ namespace MediaBrowser.MediaEncoding.Encoder
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/// <param name="primaryPath">The primary path.</param>
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/// <param name="protocol">The protocol.</param>
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/// <param name="extractChapters">if set to <c>true</c> [extract chapters].</param>
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/// <param name="extractKeyFrameInterval">if set to <c>true</c> [extract key frame interval].</param>
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/// <param name="probeSizeArgument">The probe size argument.</param>
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/// <param name="isAudio">if set to <c>true</c> [is audio].</param>
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/// <param name="videoType">Type of the video.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task{MediaInfoResult}.</returns>
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/// <exception cref="System.ApplicationException">ffprobe failed - streams and format are both null.</exception>
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/// <exception cref="System.ApplicationException"></exception>
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private async Task<Model.MediaInfo.MediaInfo> GetMediaInfoInternal(string inputPath,
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string primaryPath,
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MediaProtocol protocol,
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bool extractChapters,
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bool extractKeyFrameInterval,
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string probeSizeArgument,
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bool isAudio,
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VideoType videoType,
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@ -258,6 +262,43 @@ namespace MediaBrowser.MediaEncoding.Encoder
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var mediaInfo = new ProbeResultNormalizer(_logger, FileSystem).GetMediaInfo(result, videoType, isAudio, primaryPath, protocol);
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var videoStream = mediaInfo.MediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Video);
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if (videoStream != null)
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{
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var isInterlaced = await DetectInterlaced(mediaInfo, videoStream, inputPath, probeSizeArgument).ConfigureAwait(false);
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if (isInterlaced)
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{
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videoStream.IsInterlaced = true;
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}
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}
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if (extractKeyFrameInterval && mediaInfo.RunTimeTicks.HasValue)
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{
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if (ConfigurationManager.Configuration.EnableVideoFrameByFrameAnalysis && mediaInfo.Size.HasValue)
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{
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foreach (var stream in mediaInfo.MediaStreams)
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{
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if (EnableKeyframeExtraction(mediaInfo, stream))
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{
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try
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{
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stream.KeyFrames = await GetKeyFrames(inputPath, stream.Index, cancellationToken).ConfigureAwait(false);
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}
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catch (OperationCanceledException)
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{
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}
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catch (Exception ex)
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{
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_logger.ErrorException("Error getting key frame interval", ex);
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}
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}
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}
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}
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}
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return mediaInfo;
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}
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catch
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@ -271,8 +312,309 @@ namespace MediaBrowser.MediaEncoding.Encoder
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_ffProbeResourcePool.Release();
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}
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}
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throw new ApplicationException(string.Format("FFProbe failed for {0}", inputPath));
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}
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private async Task<bool> DetectInterlaced(MediaSourceInfo video, MediaStream videoStream, string inputPath, string probeSizeArgument)
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{
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if (video.Protocol != MediaProtocol.File)
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{
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return false;
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}
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var formats = (video.Container ?? string.Empty).Split(',').ToList();
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// Take a shortcut and limit this to containers that are likely to have interlaced content
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if (!formats.Contains("ts", StringComparer.OrdinalIgnoreCase) &&
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!formats.Contains("mpegts", StringComparer.OrdinalIgnoreCase) &&
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!formats.Contains("wtv", StringComparer.OrdinalIgnoreCase))
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{
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return false;
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}
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var args = "{0} -i {1} -map 0:v:{2} -filter:v idet -frames:v 500 -an -f null /dev/null";
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var process = new Process
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{
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StartInfo = new ProcessStartInfo
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{
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CreateNoWindow = true,
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UseShellExecute = false,
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// Must consume both or ffmpeg may hang due to deadlocks. See comments below.
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RedirectStandardOutput = true,
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RedirectStandardError = true,
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RedirectStandardInput = true,
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FileName = FFMpegPath,
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Arguments = string.Format(args, probeSizeArgument, inputPath, videoStream.Index.ToString(CultureInfo.InvariantCulture)).Trim(),
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WindowStyle = ProcessWindowStyle.Hidden,
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ErrorDialog = false
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},
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EnableRaisingEvents = true
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};
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_logger.Info("{0} {1}", process.StartInfo.FileName, process.StartInfo.Arguments);
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var idetFoundInterlaced = false;
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using (var processWrapper = new ProcessWrapper(process, this, _logger))
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{
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try
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{
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StartProcess(processWrapper);
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}
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catch (Exception ex)
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{
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_logger.ErrorException("Error starting ffprobe", ex);
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throw;
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}
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try
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{
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process.BeginOutputReadLine();
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using (var reader = new StreamReader(process.StandardError.BaseStream))
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{
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while (!reader.EndOfStream)
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{
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var line = await reader.ReadLineAsync().ConfigureAwait(false);
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if (line.StartsWith("[Parsed_idet", StringComparison.OrdinalIgnoreCase))
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{
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var idetResult = AnalyzeIdetResult(line);
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if (idetResult.HasValue)
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{
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if (!idetResult.Value)
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{
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return false;
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}
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idetFoundInterlaced = true;
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}
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}
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}
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}
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}
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catch
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{
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StopProcess(processWrapper, 100, true);
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throw;
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}
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}
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return idetFoundInterlaced;
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}
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private bool? AnalyzeIdetResult(string line)
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{
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// As you can see, the filter only guessed one frame as progressive.
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// Results like this are pretty typical. So if less than 30% of the detections are in the "Undetermined" category, then I only consider the video to be interlaced if at least 65% of the identified frames are in either the TFF or BFF category.
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// In this case (310 + 311)/(622) = 99.8% which is well over the 65% metric. I may refine that number with more testing but I honestly do not believe I will need to.
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// http://awel.domblogger.net/videoTranscode/interlace.html
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var index = line.IndexOf("detection:", StringComparison.OrdinalIgnoreCase);
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if (index == -1)
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{
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return null;
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}
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line = line.Substring(index).Trim();
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var parts = line.Split(' ').Where(i => !string.IsNullOrWhiteSpace(i)).Select(i => i.Trim()).ToList();
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if (parts.Count < 2)
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{
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return null;
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}
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double tff = 0;
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double bff = 0;
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double progressive = 0;
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double undetermined = 0;
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double total = 0;
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for (var i = 0; i < parts.Count - 1; i++)
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{
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var part = parts[i];
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if (string.Equals(part, "tff:", StringComparison.OrdinalIgnoreCase))
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{
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tff = GetNextPart(parts, i);
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total += tff;
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}
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else if (string.Equals(part, "bff:", StringComparison.OrdinalIgnoreCase))
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{
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bff = GetNextPart(parts, i);
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total += tff;
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}
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else if (string.Equals(part, "progressive:", StringComparison.OrdinalIgnoreCase))
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{
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progressive = GetNextPart(parts, i);
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total += progressive;
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}
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else if (string.Equals(part, "undetermined:", StringComparison.OrdinalIgnoreCase))
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{
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undetermined = GetNextPart(parts, i);
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total += undetermined;
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}
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}
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if (total == 0)
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{
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return null;
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}
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if ((undetermined / total) >= .3)
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{
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return false;
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}
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if (((tff + bff) / total) >= .65)
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{
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return true;
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}
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return false;
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}
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private int GetNextPart(List<string> parts, int index)
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{
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var next = parts[index + 1];
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int value;
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if (int.TryParse(next, NumberStyles.Any, CultureInfo.InvariantCulture, out value))
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{
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return value;
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}
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return 0;
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}
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private bool EnableKeyframeExtraction(MediaSourceInfo mediaSource, MediaStream videoStream)
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{
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if (videoStream.Type == MediaStreamType.Video && string.Equals(videoStream.Codec, "h264", StringComparison.OrdinalIgnoreCase) &&
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!videoStream.IsInterlaced &&
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!(videoStream.IsAnamorphic ?? false))
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{
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var audioStreams = mediaSource.MediaStreams.Where(i => i.Type == MediaStreamType.Audio).ToList();
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// If it has aac audio then it will probably direct stream anyway, so don't bother with this
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if (audioStreams.Count == 1 && string.Equals(audioStreams[0].Codec, "aac", StringComparison.OrdinalIgnoreCase))
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{
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return false;
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}
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return true;
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}
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return false;
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}
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private async Task<List<int>> GetKeyFrames(string inputPath, int videoStreamIndex, CancellationToken cancellationToken)
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{
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inputPath = inputPath.Split(new[] { ':' }, 2).Last().Trim('"');
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const string args = "-show_packets -print_format compact -select_streams v:{1} -show_entries packet=flags -show_entries packet=pts_time \"{0}\"";
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var process = new Process
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{
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StartInfo = new ProcessStartInfo
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{
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CreateNoWindow = true,
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UseShellExecute = false,
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// Must consume both or ffmpeg may hang due to deadlocks. See comments below.
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RedirectStandardOutput = true,
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RedirectStandardError = true,
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FileName = FFProbePath,
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Arguments = string.Format(args, inputPath, videoStreamIndex.ToString(CultureInfo.InvariantCulture)).Trim(),
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WindowStyle = ProcessWindowStyle.Hidden,
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ErrorDialog = false
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},
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EnableRaisingEvents = true
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};
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_logger.Info("{0} {1}", process.StartInfo.FileName, process.StartInfo.Arguments);
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using (process)
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{
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var start = DateTime.UtcNow;
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process.Start();
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var lines = new List<int>();
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try
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{
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process.BeginErrorReadLine();
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await StartReadingOutput(process.StandardOutput.BaseStream, lines, cancellationToken).ConfigureAwait(false);
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}
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catch (OperationCanceledException)
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{
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if (cancellationToken.IsCancellationRequested)
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{
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throw;
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}
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}
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process.WaitForExit();
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_logger.Info("Keyframe extraction took {0} seconds", (DateTime.UtcNow - start).TotalSeconds);
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//_logger.Debug("Found keyframes {0}", string.Join(",", lines.ToArray()));
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return lines;
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}
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}
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private async Task StartReadingOutput(Stream source, List<int> keyframes, CancellationToken cancellationToken)
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{
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try
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{
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using (var reader = new StreamReader(source))
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{
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var text = await reader.ReadToEndAsync().ConfigureAwait(false);
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var lines = StringHelper.RegexSplit(text, "[\r\n]+");
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foreach (var line in lines)
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{
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if (string.IsNullOrWhiteSpace(line))
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{
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continue;
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}
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var values = line.Split('|')
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.Where(i => !string.IsNullOrWhiteSpace(i))
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.Select(i => i.Split('='))
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.Where(i => i.Length == 2)
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.ToDictionary(i => i[0], i => i[1]);
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string flags;
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if (values.TryGetValue("flags", out flags) && string.Equals(flags, "k", StringComparison.OrdinalIgnoreCase))
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{
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string pts_time;
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double frameSeconds;
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if (values.TryGetValue("pts_time", out pts_time) && double.TryParse(pts_time, NumberStyles.Any, CultureInfo.InvariantCulture, out frameSeconds))
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{
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var ms = frameSeconds * 1000;
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keyframes.Add(Convert.ToInt32(ms));
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}
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}
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}
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}
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}
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catch (OperationCanceledException)
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{
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throw;
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}
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catch (Exception ex)
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{
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_logger.ErrorException("Error reading ffprobe output", ex);
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}
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}
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/// <summary>
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/// The us culture
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/// </summary>
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