private static int GetFirstEndOfJpeg(byte[] fileBytes, out BoyerMoore bm)
{
var endOfJpegBytes = MovingPhotoExtraction.ToBytes("FF D9".Split(' '));
bm = new BoyerMoore(endOfJpegBytes);
int endOfJpeg = bm.Search(fileBytes);
return(endOfJpeg);
}
private static int GetEndOfJpeg(byte[] fileBytes, int indexOfMp4, out BoyerMoore bm)
{
var endOfJpegBytes = MovingPhotoExtraction.ToBytes("FF D9".Split(' '));
bm = new BoyerMoore(endOfJpegBytes);
var subBytes = fileBytes.Take(indexOfMp4).ToArray();
var endOfJpegList = bm.SearchAll(subBytes);
return(endOfJpegList.LastOrDefault());
}
static void Run(string[] args)
{
filesToConvert = new ConcurrentQueue <FileInfo>();
var searchPatterns = System.Configuration.ConfigurationManager.AppSettings.AllKeys.Where(a => a.StartsWith("FilePattern")).ToArray();
searchPatterns = searchPatterns.Select(a => System.Configuration.ConfigurationManager.AppSettings[a]).ToArray();
var hexSearches = System.Configuration.ConfigurationManager.AppSettings.AllKeys.Where(a => a.StartsWith("Mp4Header")).ToArray();
var byteSearches = hexSearches.Select(a => MovingPhotoExtraction.ToBytes(System.Configuration.ConfigurationManager.AppSettings[a].Split(' '))).ToList();
var options = new Arguments(args, DirectoryPicker);
if (!options.IsValid)
{
Console.WriteLine("Cannot continue with current options. Exiting");
return;
}
searchPatterns = string.IsNullOrWhiteSpace(options.SearchPattern) ? searchPatterns : new[] { options.SearchPattern };
var folder = options.Directory;
var imageFiles = searchPatterns.SelectMany(a => Directory.GetFiles(folder, a)).ToArray();
Console.WriteLine("Found the following number of google motion photos: " + imageFiles.Length);
int count = 0;
int successCount = 0;
foreach (var item in imageFiles)
{
try
{
if (Read(item, byteSearches, options.OutputDirectory, options.ExtractJpg))
{
successCount++;
}
count++;
}
catch (Exception e)
{
Console.WriteLine("Failed " + e.Message);
Console.WriteLine(e.StackTrace);
Console.WriteLine(System.Environment.NewLine);
}
}
Console.WriteLine($"Finished. Processed {count} files, found {successCount} videos for {imageFiles.Length} images files.");
if (options.GifExport)
{
FFmpegGif.CreateGifs(filesToConvert);
}
if (!options.Headless)
{
Console.WriteLine("Press any key to exit");
Console.ReadKey();
}
}
public static bool Read(string file, List <byte[]> byteSearch, string outputDirectory, bool extractJpg)
{
//var r1 = new ExifLib.ExifReader(file);
//var m1 = MetadataExtractor.ImageMetadataReader.ReadMetadata(file);
Console.Write("Searching " + file);
var fileBytes = File.ReadAllBytes(file);
int indexOfMp4 = -1;
foreach (var search in byteSearch)
{
indexOfMp4 = new BoyerMoore(search).Search(fileBytes);
if (indexOfMp4 >= 0)
{
break;
}
}
if (indexOfMp4 >= 0)
{
Console.WriteLine(" Found the video");
WriteVideo(file, fileBytes, indexOfMp4, extractJpg, null, outputDirectory);
return(true);
}
else
{
Console.Write(" Did not find known video, trying generic approach");
// http://dev.exiv2.org/projects/exiv2/wiki/The_Metadata_in_JPEG_files says that a JPEG start of image with 0xFFD8 and ends with 0xFFD9.
var indexOfMp4_Part1 = MovingPhotoExtraction.ToBytes("00 00 00".Split(' '));
var indexOfMp4_Part2 = MovingPhotoExtraction.ToBytes("66 74 79 70".Split(' '));
var indexOfMp4_Part3 = MovingPhotoExtraction.ToBytes("6D 70 34 32".Split(' '));
BoyerMoore bm;
int endOfJpeg = GetFirstEndOfJpeg(fileBytes, out bm);
bm.SetPattern(indexOfMp4_Part2);
var part2s = bm.SearchAll(fileBytes);
bm.SetPattern(indexOfMp4_Part3);
foreach (var part2 in part2s)
{
if (part2 < endOfJpeg)
{
Console.Write("Not yet at end of jpeg");
}
var part3 = bm.SearchAll(fileBytes).FirstOrDefault(a => a > part2);
// part 3 is just a bit further than part2
if (part3 > part2 && part2 + 20 > part3)
{
var minus4 = fileBytes[part2 - 4];
var minus3 = fileBytes[part2 - 3];
var minus2 = fileBytes[part2 - 2];
var minus1 = fileBytes[part2 - 1];
if (minus4 == 0 && minus3 == 0 && minus2 == 0)
{
Console.WriteLine("... Found video via pattern search");
endOfJpeg = GetEndOfJpeg(fileBytes, indexOfMp4, out _);
WriteVideo(file, fileBytes, part2 - 4, extractJpg, endOfJpeg, outputDirectory);
return(true);
}
Console.WriteLine($"... Found part2 and 3, not 1: {minus4} {minus3} {minus2} {minus1}");
}
}
Console.WriteLine($"Failed to find the video out of {part2s.Count} possibilites");
Console.WriteLine("Please report this output to https://github.com/cliveontoast/GoMoPho/issues and attach your moving image jpeg file");
}
return(false);
}
static void Main(string[] args)
{
string searchPattern = System.Configuration.ConfigurationManager.AppSettings["FilePattern"];
string video = ".mp4";
var hexSearches = System.Configuration.ConfigurationManager.AppSettings.AllKeys.Where(a => a.StartsWith("Mp4Header")).ToList();
var byteSearches = hexSearches.Select(a => MovingPhotoExtraction.ToBytes(System.Configuration.ConfigurationManager.AppSettings[a].Split(' '))).ToList();
string possibleFolder = null;
if (args.Length == 0)
{
Console.WriteLine("No directory given to process" + Environment.NewLine);
Console.WriteLine("First argument is the folder i.e. \"c:\\somewhere with spaces\\\"");
Console.WriteLine("Second optional agument is the search pattern, i.e. default of " + searchPattern);
Console.WriteLine("Third optional agument is the search pattern for video file, where file ends with i.e. default of " + video);
Console.WriteLine(System.Environment.NewLine);
Console.WriteLine("You can 1) type (or paste) in a folder now - without quotes and press <ENTER>");
Console.WriteLine(" 2) press <ENTER> to exit");
Console.WriteLine(System.Environment.NewLine);
Console.WriteLine(" Example typed text, afterwards pressing <ENTER>");
Console.WriteLine(" >c:\\somewhere with spaces");
Console.WriteLine();
Console.Write("> ");
possibleFolder = Console.ReadLine();
}
else
{
possibleFolder = args[0];
if (args.Length > 1)
{
searchPattern = args[1];
}
if (args.Length > 2)
{
video = args[2];
}
}
if (!System.IO.Directory.Exists(possibleFolder))
{
Console.WriteLine($"Directory {possibleFolder} does not exist. Press any key to exit.");
Console.ReadKey();
return;
}
var folder = possibleFolder;
var imageFiles = System.IO.Directory.GetFiles(folder, searchPattern);
Console.WriteLine("Found the following number of google motion photos: " + imageFiles.Length);
int count = 0;
int successCount = 0;
foreach (var item in imageFiles)
{
try
{
if (Read(item, byteSearches))
{
successCount++;
}
count++;
}
catch (Exception e)
{
Console.WriteLine("Failed " + e.Message);
Console.WriteLine(e.StackTrace);
Console.WriteLine(System.Environment.NewLine);
}
}
Console.WriteLine($"Finished. Processed {count} files, found {successCount} videos for {imageFiles.Length} images files.");
Console.WriteLine("Press any key to exit");
Console.ReadKey();
}
