1 | %'get_file_info': determine info about a file (image, multimage, civdata,...) . |
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2 | %------------------------------------------------------------------------ |
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3 | % [FileInfo,VideoObject]=get_file_info(fileinput) |
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4 | % |
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5 | % OUTPUT: |
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6 | % FileInfo: structure containing info on the file (case of images or video), in particular |
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7 | % .FileType: type of file, needed as input of read_field.m |
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8 | % .Height: image height in pixels |
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9 | % .Width: image width in pixels |
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10 | % .BitDepth: nbre of bits per pixel (8 of 16) |
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11 | % .ColorType: 'greyscale' or 'color' |
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12 | % .NumberOfFrames |
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13 | % .FrameRate: nbre of frames per second, =[] for images |
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14 | % VideoObject: in case of video |
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15 | % |
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16 | % INPUT: |
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17 | % fileinput: name, including path, of the file to analyse |
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18 | |
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19 | %======================================================================= |
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20 | % Copyright 2008-2014, LEGI UMR 5519 / CNRS UJF G-INP, Grenoble, France |
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21 | % http://www.legi.grenoble-inp.fr |
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22 | % Joel.Sommeria - Joel.Sommeria (A) legi.cnrs.fr |
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23 | % |
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24 | % This file is part of the toolbox UVMAT. |
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25 | % |
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26 | % UVMAT is free software; you can redistribute it and/or modify |
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27 | % it under the terms of the GNU General Public License as published |
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28 | % by the Free Software Foundation; either version 2 of the license, |
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29 | % or (at your option) any later version. |
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30 | % |
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31 | % UVMAT is distributed in the hope that it will be useful, |
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32 | % but WITHOUT ANY WARRANTY; without even the implied warranty of |
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33 | % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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34 | % GNU General Public License (see LICENSE.txt) for more details. |
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35 | %======================================================================= |
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36 | |
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37 | function [FileInfo,VideoObject]=get_file_info(fileinput) |
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38 | VideoObject=[]; |
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39 | if exist(fileinput,'file') |
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40 | FileInfo.FileName=fileinput; |
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41 | FileInfo.FileType='txt'; %default |
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42 | else |
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43 | FileInfo.FileType=''; |
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44 | return |
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45 | end |
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46 | [tild,tild,FileExt]=fileparts(fileinput);%get the file extension FileExt |
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47 | |
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48 | switch FileExt |
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49 | case '.fig' |
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50 | FileInfo.FileType='figure'; |
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51 | case {'.xml','.xls','.dat','.bin'} |
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52 | FileInfo.FileType=regexprep(FileExt,'^.','');% eliminate the dot of the extension; |
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53 | case {'.seq','.sqb'} |
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54 | [A,FileInfo,timestamps,errormsg]=read_rdvision(fileinput,[]); |
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55 | |
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56 | otherwise |
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57 | if ~isempty(FileExt)% exclude empty extension |
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58 | FileExt=regexprep(FileExt,'^.','');% eliminate the dot of the extension |
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59 | if ~isempty(FileExt) |
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60 | if ~isempty(imformats(FileExt))%case of images |
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61 | try |
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62 | imainfo=imfinfo(fileinput); |
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63 | if length(imainfo) >1 %case of image with multiple frames |
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64 | FileInfo=imainfo(1);%take info from the first frame |
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65 | FileInfo.NumberOfFrames=length(imainfo); |
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66 | FileInfo.FileType='multimage'; |
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67 | else |
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68 | FileInfo=imainfo; |
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69 | FileInfo.NumberOfFrames=1; |
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70 | FileInfo.FileType='image'; |
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71 | end |
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72 | FileInfo.FileName=FileInfo.Filename; %correct the info given by imfinfo |
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73 | nbfield=numel(fieldnames(FileInfo)); |
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74 | FileInfo=orderfields(FileInfo,[nbfield nbfield-1 nbfield-2 (1:nbfield-3)]); %reorder the fields of fileInfo for clarity |
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75 | end |
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76 | else |
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77 | error_nc=0; |
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78 | try |
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79 | [Data,tild,tild,errormsg]=nc2struct(fileinput,[]); |
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80 | if ~isempty(errormsg) |
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81 | error_nc=1; |
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82 | else |
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83 | if isfield(Data,'absolut_time_T0') && isfield(Data,'hart') && ~isempty(Data.absolut_time_T0) && ~isempty(Data.hart) |
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84 | FileInfo.FileType='civx'; |
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85 | if isfield(Data,'patch2') && isequal(Data.patch2,1) |
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86 | FileInfo.CivStage=6; |
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87 | elseif isfield(Data,'fix2') && isequal(Data.fix2,1) |
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88 | FileInfo.CivStage=5; |
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89 | elseif isfield(Data,'civ2')&& isequal(Data.civ2,1) |
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90 | FileInfo.CivStage=4; |
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91 | elseif isfield(Data,'patch')&&isequal(Data.patch,1) |
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92 | FileInfo.CivStage=3; |
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93 | elseif isfield(Data,'fix')&&isequal(Data.fix,1) |
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94 | FileInfo.CivStage=2; |
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95 | else |
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96 | FileInfo.CivStage=1; |
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97 | end |
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98 | elseif isfield(Data,'Conventions') && strcmp(Data.Conventions,'uvmat/civdata') |
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99 | FileInfo.FileType='civdata'; % test for civx velocity fields |
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100 | FileInfo.CivStage=Data.CivStage; |
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101 | else |
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102 | FileInfo.FileType='netcdf'; |
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103 | FileInfo.ListVarName=Data.ListVarName; |
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104 | end |
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105 | end |
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106 | catch ME |
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107 | error_nc=1; |
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108 | end |
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109 | if error_nc |
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110 | try |
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111 | if exist('VideoReader.m','file')%recent version of Matlab |
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112 | VideoObject=VideoReader(fileinput); |
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113 | FileInfo=get(VideoObject); |
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114 | FileInfo.FileType='video'; |
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115 | elseif exist('mmreader.m','file')% Matlab 2009a |
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116 | VideoObject=mmreader(fileinput); |
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117 | FileInfo=get(VideoObject); |
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118 | FileInfo.FileType='mmreader'; |
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119 | end |
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120 | FileInfo.BitDepth=FileInfo.BitsPerPixel/3; |
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121 | FileInfo.ColorType='truecolor'; |
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122 | FileInfo.FileName=fileinput; |
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123 | nbfield=numel(fieldnames(FileInfo)); |
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124 | FileInfo=orderfields(FileInfo,[nbfield nbfield-3 nbfield-1 nbfield-2 (1:nbfield-4)]); %reorder the fields of fileInfo for clarity |
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125 | end |
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126 | end |
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127 | end |
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128 | end |
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129 | end |
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130 | end |
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131 | switch FileInfo.FileType |
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132 | case {'image','multimage','mmreader','video','netcdf','civdata'} |
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133 | FileInfo.FileIndexing='on'; % allow to detect file index for scanning series |
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134 | end |
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