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@ -682,11 +682,9 @@ namespace MediaBrowser.MediaEncoding.Encoder
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if (exitCode == -1 || !file.Exists || file.Length == 0)
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{
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var msg = string.Format(CultureInfo.InvariantCulture, "ffmpeg image extraction failed for {0}", inputPath);
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_logger.LogError("ffmpeg image extraction failed for {Path}", inputPath);
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_logger.LogError(msg);
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throw new FfmpegException(msg);
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throw new FfmpegException(string.Format(CultureInfo.InvariantCulture, "ffmpeg image extraction failed for {0}", inputPath));
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}
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return tempExtractPath;
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@ -705,117 +703,6 @@ namespace MediaBrowser.MediaEncoding.Encoder
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return time.ToString(@"hh\:mm\:ss\.fff", CultureInfo.InvariantCulture);
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}
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public async Task ExtractVideoImagesOnInterval(
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string inputFile,
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string container,
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MediaStream videoStream,
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MediaSourceInfo mediaSource,
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Video3DFormat? threedFormat,
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TimeSpan interval,
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string targetDirectory,
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string filenamePrefix,
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int? maxWidth,
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CancellationToken cancellationToken)
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{
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var inputArgument = GetInputArgument(inputFile, mediaSource);
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var vf = "fps=fps=1/" + interval.TotalSeconds.ToString(CultureInfo.InvariantCulture);
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if (maxWidth.HasValue)
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{
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var maxWidthParam = maxWidth.Value.ToString(CultureInfo.InvariantCulture);
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vf += string.Format(CultureInfo.InvariantCulture, ",scale=min(iw\\,{0}):trunc(ow/dar/2)*2", maxWidthParam);
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}
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Directory.CreateDirectory(targetDirectory);
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var outputPath = Path.Combine(targetDirectory, filenamePrefix + "%05d.jpg");
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var args = string.Format(CultureInfo.InvariantCulture, "-i {0} -threads {3} -v quiet {2} -f image2 \"{1}\"", inputArgument, outputPath, vf, _threads);
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if (!string.IsNullOrWhiteSpace(container))
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{
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var inputFormat = EncodingHelper.GetInputFormat(container);
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if (!string.IsNullOrWhiteSpace(inputFormat))
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{
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args = "-f " + inputFormat + " " + args;
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}
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}
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var processStartInfo = new ProcessStartInfo
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{
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CreateNoWindow = true,
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UseShellExecute = false,
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FileName = _ffmpegPath,
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Arguments = args,
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WindowStyle = ProcessWindowStyle.Hidden,
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ErrorDialog = false
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};
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_logger.LogInformation(processStartInfo.FileName + " " + processStartInfo.Arguments);
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await _thumbnailResourcePool.WaitAsync(cancellationToken).ConfigureAwait(false);
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bool ranToCompletion = false;
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var process = new Process
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{
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StartInfo = processStartInfo,
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EnableRaisingEvents = true
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};
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using (var processWrapper = new ProcessWrapper(process, this))
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{
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try
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{
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StartProcess(processWrapper);
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// Need to give ffmpeg enough time to make all the thumbnails, which could be a while,
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// but we still need to detect if the process hangs.
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// Making the assumption that as long as new jpegs are showing up, everything is good.
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bool isResponsive = true;
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int lastCount = 0;
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while (isResponsive)
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{
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if (await process.WaitForExitAsync(TimeSpan.FromSeconds(30)).ConfigureAwait(false))
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{
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ranToCompletion = true;
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break;
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}
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cancellationToken.ThrowIfCancellationRequested();
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var jpegCount = _fileSystem.GetFilePaths(targetDirectory)
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.Count(i => string.Equals(Path.GetExtension(i), ".jpg", StringComparison.OrdinalIgnoreCase));
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isResponsive = jpegCount > lastCount;
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lastCount = jpegCount;
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}
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if (!ranToCompletion)
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{
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StopProcess(processWrapper, 1000);
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}
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}
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finally
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{
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_thumbnailResourcePool.Release();
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}
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var exitCode = ranToCompletion ? processWrapper.ExitCode ?? 0 : -1;
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if (exitCode == -1)
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{
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var msg = string.Format(CultureInfo.InvariantCulture, "ffmpeg image extraction failed for {0}", inputArgument);
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_logger.LogError(msg);
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throw new FfmpegException(msg);
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}
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}
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}
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private void StartProcess(ProcessWrapper process)
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{
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process.Process.Start();
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Cody Robibero
3 years ago
committed by
GitHub