private static IEnumerable<string> ExecuteFFMPEGAndGetImageFiles(ImageJobGroup imageJobGroup, string mediaFilePath)
{
using (var ffmpeg = new FFMPEGProcess(new FFMPEGProcessSettings(mediaFilePath, imageJobGroup.Timestamp - TimeSpan.FromSeconds(1))))
{
ffmpeg.Execute();
}
return GetImageFilePaths(imageJobGroup, mediaFilePath);
}
private static void IndexEntriesAtIndex(
string videoFile,
TimeSpan startTime,
Ratio framerate,
TimeSpan totalDuration,
IndexDatabase database
)
{
string outputDirectory = Path.GetRandomFileName();
Ratio quarterFramerate = new Ratio(framerate.Numerator, framerate.Denominator * 4);
var ffmpegProcessSettings = new FFMPEGProcessSettings(
videoFile,
outputDirectory,
startTime,
CalculateFramesToOutputFromFramerate(startTime, quarterFramerate, totalDuration),
framerate,
FFMPEGOutputFormat.Y4M
);
if (Directory.Exists(outputDirectory) == false)
{
Directory.CreateDirectory(outputDirectory);
}
using (var ffmpegProcess = new FFMPEGProcess(ffmpegProcessSettings))
{
ffmpegProcess.Execute();
IndexFilesInDirectory(videoFile, outputDirectory, startTime, database, quarterFramerate);
try
{
Directory.Delete(outputDirectory, true);
}
catch (Exception e)
{
Console.Error.WriteLine(string.Format("Could not clean up images: {0}", e.Message));
}
}
}