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			461 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
			
		
		
	
	
			461 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
//============================================================================
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// BDInfo - Blu-ray Video and Audio Analysis Tool
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// Copyright © 2010 Cinema Squid
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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//=============================================================================
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Text;
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namespace BDInfo
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{
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    public class BDROM
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    {
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        public FileSystemMetadata DirectoryRoot = null;
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        public FileSystemMetadata DirectoryBDMV = null;
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        public FileSystemMetadata DirectoryBDJO = null;
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        public FileSystemMetadata DirectoryCLIPINF = null;
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        public FileSystemMetadata DirectoryPLAYLIST = null;
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        public FileSystemMetadata DirectorySNP = null;
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        public FileSystemMetadata DirectorySSIF = null;
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        public FileSystemMetadata DirectorySTREAM = null;
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        public string VolumeLabel = null;
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        public ulong Size = 0;
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        public bool IsBDPlus = false;
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        public bool IsBDJava = false;
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        public bool IsDBOX = false;
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        public bool IsPSP = false;
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        public bool Is3D = false;
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        public bool Is50Hz = false;
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        private readonly IFileSystem _fileSystem;
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        public Dictionary<string, TSPlaylistFile> PlaylistFiles =
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            new Dictionary<string, TSPlaylistFile>();
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        public Dictionary<string, TSStreamClipFile> StreamClipFiles =
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            new Dictionary<string, TSStreamClipFile>();
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        public Dictionary<string, TSStreamFile> StreamFiles =
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            new Dictionary<string, TSStreamFile>();
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        public Dictionary<string, TSInterleavedFile> InterleavedFiles =
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            new Dictionary<string, TSInterleavedFile>();
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        private static List<string> ExcludeDirs = new List<string> { "ANY!", "AACS", "BDSVM", "ANYVM", "SLYVM" };
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        public delegate bool OnStreamClipFileScanError(
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            TSStreamClipFile streamClipFile, Exception ex);
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        public event OnStreamClipFileScanError StreamClipFileScanError;
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        public delegate bool OnStreamFileScanError(
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            TSStreamFile streamClipFile, Exception ex);
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        public event OnStreamFileScanError StreamFileScanError;
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        public delegate bool OnPlaylistFileScanError(
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            TSPlaylistFile playlistFile, Exception ex);
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        public event OnPlaylistFileScanError PlaylistFileScanError;
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        public BDROM(
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            string path, IFileSystem fileSystem, ITextEncoding textEncoding)
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        {
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            if (string.IsNullOrWhiteSpace(path))
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            {
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                throw new ArgumentNullException("path");
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            }
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            _fileSystem = fileSystem;
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            //
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            // Locate BDMV directories.
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            //
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            DirectoryBDMV =
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                GetDirectoryBDMV(path);
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            if (DirectoryBDMV == null)
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            {
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                throw new Exception("Unable to locate BD structure.");
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            }
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            DirectoryRoot =
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                _fileSystem.GetDirectoryInfo(_fileSystem.GetDirectoryName(DirectoryBDMV.FullName));
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            DirectoryBDJO =
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                GetDirectory("BDJO", DirectoryBDMV, 0);
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            DirectoryCLIPINF =
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                GetDirectory("CLIPINF", DirectoryBDMV, 0);
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            DirectoryPLAYLIST =
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                GetDirectory("PLAYLIST", DirectoryBDMV, 0);
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            DirectorySNP =
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                GetDirectory("SNP", DirectoryRoot, 0);
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            DirectorySTREAM =
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                GetDirectory("STREAM", DirectoryBDMV, 0);
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            DirectorySSIF =
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                GetDirectory("SSIF", DirectorySTREAM, 0);
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            if (DirectoryCLIPINF == null
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                || DirectoryPLAYLIST == null)
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            {
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                throw new Exception("Unable to locate BD structure.");
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            }
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            //
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            // Initialize basic disc properties.
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            //
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            VolumeLabel = GetVolumeLabel(DirectoryRoot);
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            Size = (ulong)GetDirectorySize(DirectoryRoot);
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            if (null != GetDirectory("BDSVM", DirectoryRoot, 0))
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            {
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                IsBDPlus = true;
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            }
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            if (null != GetDirectory("SLYVM", DirectoryRoot, 0))
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            {
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                IsBDPlus = true;
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            }
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            if (null != GetDirectory("ANYVM", DirectoryRoot, 0))
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            {
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                IsBDPlus = true;
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            }
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            if (DirectoryBDJO != null &&
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                _fileSystem.GetFilePaths(DirectoryBDJO.FullName).Any())
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            {
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                IsBDJava = true;
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            }
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            if (DirectorySNP != null &&
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                GetFilePaths(DirectorySNP.FullName, ".mnv").Any())
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            {
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                IsPSP = true;
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            }
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            if (DirectorySSIF != null &&
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                _fileSystem.GetFilePaths(DirectorySSIF.FullName).Any())
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            {
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                Is3D = true;
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            }
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            if (_fileSystem.FileExists(Path.Combine(DirectoryRoot.FullName, "FilmIndex.xml")))
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            {
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                IsDBOX = true;
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            }
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            //
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            // Initialize file lists.
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            //
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            if (DirectoryPLAYLIST != null)
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            {
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                FileSystemMetadata[] files = GetFiles(DirectoryPLAYLIST.FullName, ".mpls").ToArray();
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                foreach (FileSystemMetadata file in files)
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                {
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                    PlaylistFiles.Add(
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                        file.Name.ToUpper(), new TSPlaylistFile(this, file, _fileSystem, textEncoding));
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                }
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            }
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            if (DirectorySTREAM != null)
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            {
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                FileSystemMetadata[] files = GetFiles(DirectorySTREAM.FullName, ".m2ts").ToArray();
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                foreach (FileSystemMetadata file in files)
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                {
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                    StreamFiles.Add(
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                        file.Name.ToUpper(), new TSStreamFile(file, _fileSystem));
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                }
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            }
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            if (DirectoryCLIPINF != null)
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            {
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                FileSystemMetadata[] files = GetFiles(DirectoryCLIPINF.FullName, ".clpi").ToArray();
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                foreach (FileSystemMetadata file in files)
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                {
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                    StreamClipFiles.Add(
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                        file.Name.ToUpper(), new TSStreamClipFile(file, _fileSystem, textEncoding));
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                }
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            }
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            if (DirectorySSIF != null)
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            {
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                FileSystemMetadata[] files = GetFiles(DirectorySSIF.FullName, ".ssif").ToArray();
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                foreach (FileSystemMetadata file in files)
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                {
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                    InterleavedFiles.Add(
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                        file.Name.ToUpper(), new TSInterleavedFile(file));
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                }
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            }
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        }
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        private IEnumerable<FileSystemMetadata> GetFiles(string path, string extension)
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        {
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            return _fileSystem.GetFiles(path, new[] { extension }, false, false);
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        }
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        private IEnumerable<string> GetFilePaths(string path, string extension)
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        {
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            return _fileSystem.GetFilePaths(path, new[] { extension }, false, false);
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        }
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        public void Scan()
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        {
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            List<TSStreamClipFile> errorStreamClipFiles = new List<TSStreamClipFile>();
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            foreach (TSStreamClipFile streamClipFile in StreamClipFiles.Values)
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            {
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                try
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                {
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                    streamClipFile.Scan();
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                }
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                catch (Exception ex)
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                {
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                    errorStreamClipFiles.Add(streamClipFile);
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                    if (StreamClipFileScanError != null)
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                    {
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                        if (StreamClipFileScanError(streamClipFile, ex))
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                        {
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                            continue;
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                        }
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                        else
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                        {
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                            break;
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                        }
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                    }
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                    else throw ex;
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                }
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            }
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            foreach (TSStreamFile streamFile in StreamFiles.Values)
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            {
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                string ssifName = Path.GetFileNameWithoutExtension(streamFile.Name) + ".SSIF";
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                if (InterleavedFiles.ContainsKey(ssifName))
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                {
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                    streamFile.InterleavedFile = InterleavedFiles[ssifName];
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                }
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            }
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            TSStreamFile[] streamFiles = new TSStreamFile[StreamFiles.Count];
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            StreamFiles.Values.CopyTo(streamFiles, 0);
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            Array.Sort(streamFiles, CompareStreamFiles);
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            List<TSPlaylistFile> errorPlaylistFiles = new List<TSPlaylistFile>();
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            foreach (TSPlaylistFile playlistFile in PlaylistFiles.Values)
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            {
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                try
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                {
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                    playlistFile.Scan(StreamFiles, StreamClipFiles);
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                }
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                catch (Exception ex)
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                {
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                    errorPlaylistFiles.Add(playlistFile);
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                    if (PlaylistFileScanError != null)
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                    {
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                        if (PlaylistFileScanError(playlistFile, ex))
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                        {
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                            continue;
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                        }
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                        else
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                        {
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                            break;
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                        }
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                    }
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                    else throw ex;
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                }
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            }
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            List<TSStreamFile> errorStreamFiles = new List<TSStreamFile>();
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            foreach (TSStreamFile streamFile in streamFiles)
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            {
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                try
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                {
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                    List<TSPlaylistFile> playlists = new List<TSPlaylistFile>();
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                    foreach (TSPlaylistFile playlist in PlaylistFiles.Values)
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                    {
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                        foreach (TSStreamClip streamClip in playlist.StreamClips)
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                        {
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                            if (streamClip.Name == streamFile.Name)
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                            {
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                                playlists.Add(playlist);
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                                break;
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                            }
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                        }
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                    }
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                    streamFile.Scan(playlists, false);
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                }
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                catch (Exception ex)
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                {
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                    errorStreamFiles.Add(streamFile);
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                    if (StreamFileScanError != null)
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                    {
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                        if (StreamFileScanError(streamFile, ex))
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                        {
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                            continue;
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                        }
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                        else
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                        {
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                            break;
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                        }
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                    }
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                    else throw ex;
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                }
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            }
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            foreach (TSPlaylistFile playlistFile in PlaylistFiles.Values)
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            {
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                playlistFile.Initialize();
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                if (!Is50Hz)
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                {
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                    foreach (TSVideoStream videoStream in playlistFile.VideoStreams)
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                    {
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                        if (videoStream.FrameRate == TSFrameRate.FRAMERATE_25 ||
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                            videoStream.FrameRate == TSFrameRate.FRAMERATE_50)
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                        {
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                            Is50Hz = 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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        private FileSystemMetadata GetDirectoryBDMV(
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            string path)
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        {
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            if (string.IsNullOrWhiteSpace(path))
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            {
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                throw new ArgumentNullException("path");
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            }
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            FileSystemMetadata dir = _fileSystem.GetDirectoryInfo(path);
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            while (dir != null)
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            {
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                if (string.Equals(dir.Name, "BDMV", StringComparison.OrdinalIgnoreCase))
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                {
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                    return dir;
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                }
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                var parentFolder = _fileSystem.GetDirectoryName(dir.FullName);
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                if (string.IsNullOrEmpty(parentFolder))
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                {
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                    dir = null;
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                }
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                else
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                {
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                    dir = _fileSystem.GetDirectoryInfo(parentFolder);
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                }
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            }
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            return GetDirectory("BDMV", _fileSystem.GetDirectoryInfo(path), 0);
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        }
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        private FileSystemMetadata GetDirectory(
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            string name,
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            FileSystemMetadata dir,
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            int searchDepth)
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        {
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            if (dir != null)
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            {
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                FileSystemMetadata[] children = _fileSystem.GetDirectories(dir.FullName).ToArray();
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                foreach (FileSystemMetadata child in children)
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                {
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                    if (string.Equals(child.Name, name, StringComparison.OrdinalIgnoreCase))
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                    {
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                        return child;
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                    }
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                }
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                if (searchDepth > 0)
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                {
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                    foreach (FileSystemMetadata child in children)
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                    {
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                        GetDirectory(
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                            name, child, searchDepth - 1);
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                    }
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                }
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            }
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            return null;
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        }
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        private long GetDirectorySize(FileSystemMetadata directoryInfo)
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        {
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            long size = 0;
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            //if (!ExcludeDirs.Contains(directoryInfo.Name.ToUpper()))  // TODO: Keep?
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            {
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                FileSystemMetadata[] pathFiles = _fileSystem.GetFiles(directoryInfo.FullName).ToArray();
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                foreach (FileSystemMetadata pathFile in pathFiles)
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                {
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                    if (pathFile.Extension.ToUpper() == ".SSIF")
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                    {
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                        continue;
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                    }
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                    size += pathFile.Length;
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                }
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                FileSystemMetadata[] pathChildren = _fileSystem.GetDirectories(directoryInfo.FullName).ToArray();
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                foreach (FileSystemMetadata pathChild in pathChildren)
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                {
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                    size += GetDirectorySize(pathChild);
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                }
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            }
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            return size;
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        }
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        private string GetVolumeLabel(FileSystemMetadata dir)
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        {
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            return dir.Name;
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        }
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        public static int CompareStreamFiles(
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            TSStreamFile x,
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            TSStreamFile y)
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        {
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            // TODO: Use interleaved file sizes
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            if ((x == null || x.FileInfo == null) && (y == null || y.FileInfo == null))
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            {
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                return 0;
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            }
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            else if ((x == null || x.FileInfo == null) && (y != null && y.FileInfo != null))
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            {
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                return 1;
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            }
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            else if ((x != null || x.FileInfo != null) && (y == null || y.FileInfo == null))
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            {
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                return -1;
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            }
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            else
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            {
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                if (x.FileInfo.Length > y.FileInfo.Length)
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                {
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                    return 1;
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                }
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                else if (y.FileInfo.Length > x.FileInfo.Length)
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                {
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                    return -1;
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                }
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                else
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                {
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                    return 0;
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                }
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            }
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        }
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    }
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}
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