[380] | 1 | %'get_file_type': determine info about a file (image, multimage, civdata,...) . |
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[376] | 2 | %------------------------------------------------------------------------ |
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[380] | 3 | % [FileType,FileInfo,Object]=get_file_type(fileinput) |
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[376] | 4 | % |
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| 5 | % OUTPUT: |
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| 6 | % FileType: type of file |
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[469] | 7 | % FileInfo: structure containing info on the file (case of images or video), in particular |
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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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[376] | 14 | % Object: 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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[783] | 18 | function [FileInfo,VideoObject]=get_file_type(fileinput) |
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[397] | 19 | VideoObject=[]; |
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[675] | 20 | if exist(fileinput,'file') |
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[771] | 21 | FileInfo.FileName=fileinput; |
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| 22 | FileInfo.FileType='txt'; %default |
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[675] | 23 | else |
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[783] | 24 | FileInfo.FileType=''; |
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[675] | 25 | return |
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| 26 | end |
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[783] | 27 | [tild,tild,FileExt]=fileparts(fileinput);%get the fiel extension FileExt |
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[376] | 28 | |
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| 29 | switch FileExt |
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| 30 | case '.fig' |
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[771] | 31 | FileInfo.FileType='figure'; |
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[376] | 32 | case '.xml' |
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[771] | 33 | FileInfo.FileType='xml'; |
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[376] | 34 | case '.xls' |
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[771] | 35 | FileInfo.FileType='xls'; |
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[781] | 36 | case '.dat' |
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[783] | 37 | FileInfo.FileType='dat';; |
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[376] | 38 | otherwise |
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[664] | 39 | if ~isempty(FileExt)% exclude empty extension |
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| 40 | FileExt=regexprep(FileExt,'^.','');% eliminate the dot of the extension |
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| 41 | if ~isempty(FileExt) |
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| 42 | if ~isempty(imformats(FileExt))%case of images |
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| 43 | try |
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| 44 | imainfo=imfinfo(fileinput); |
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[783] | 45 | if length(imainfo) >1 %case of image with multiple frames |
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[664] | 46 | FileInfo=imainfo(1);%take info from the first frame |
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[783] | 47 | FileInfo.FileType='multimage'; |
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[664] | 48 | FileInfo.NumberOfFrames=length(imainfo); |
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| 49 | else |
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| 50 | FileInfo=imainfo; |
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[783] | 51 | FileInfo.FileType='image'; |
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[664] | 52 | FileInfo.NumberOfFrames=1; |
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| 53 | end |
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[771] | 54 | FileInfo.FileName=FileInfo.Filename; %correct the info given by imfinfo |
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[664] | 55 | end |
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[446] | 56 | else |
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[664] | 57 | error_nc=0; |
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| 58 | try |
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[771] | 59 | [Data,tild,tild,errormsg]=nc2struct(fileinput,[]); |
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[752] | 60 | if ~isempty(errormsg) |
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[664] | 61 | error_nc=1; |
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| 62 | else |
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[771] | 63 | if isfield(Data,'absolut_time_T0') && isfield(Data,'hart') && ~isempty(Data.absolut_time_T0) && ~isempty(Data.hart) |
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| 64 | FileInfo.FileType='civx'; |
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[664] | 65 | FileType='civx'; % test for civx velocity fields |
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[771] | 66 | if isfield(Data,'patch2') && isequal(Data.patch2,1) |
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[664] | 67 | FileInfo.CivStage=6; |
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[771] | 68 | elseif isfield(Data,'fix2') && isequal(Data.fix2,1) |
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[664] | 69 | FileInfo.CivStage=5; |
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[771] | 70 | elseif isfield(Data,'civ2')&& isequal(Data.civ2,1) |
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[664] | 71 | FileInfo.CivStage=4; |
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[771] | 72 | elseif isfield(Data,'patch')&&isequal(Data.patch,1) |
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[664] | 73 | FileInfo.CivStage=3; |
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[771] | 74 | elseif isfield(Data,'fix')&&isequal(Data.fix,1) |
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[664] | 75 | FileInfo.CivStage=2; |
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[752] | 76 | else |
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[664] | 77 | FileInfo.CivStage=1; |
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| 78 | end |
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[771] | 79 | elseif isfield(Data,'Conventions') && strcmp(Data.Conventions,'uvmat/civdata') |
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| 80 | FileInfo.FileType='civdata'; % test for civx velocity fields |
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[783] | 81 | % FileType='civdata'; % test for civx velocity fields |
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[664] | 82 | FileInfo.CivStage=Data.CivStage; |
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| 83 | else |
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[771] | 84 | FileInfo.FileType='netcdf'; |
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[783] | 85 | %FileType='netcdf'; |
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[771] | 86 | FileInfo.ListVarName=Data.ListVarName; |
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[664] | 87 | end |
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[386] | 88 | end |
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[664] | 89 | catch ME |
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| 90 | error_nc=1; |
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[376] | 91 | end |
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[664] | 92 | if error_nc |
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| 93 | try |
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| 94 | if exist('VideoReader.m','file')%recent version of Matlab |
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| 95 | VideoObject=VideoReader(fileinput); |
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| 96 | FileInfo=get(VideoObject); |
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[783] | 97 | FileInfo.FileType='video'; |
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[664] | 98 | elseif exist('mmreader.m','file')% Matlab 2009a |
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| 99 | VideoObject=mmreader(fileinput); |
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| 100 | FileInfo=get(VideoObject); |
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[783] | 101 | FileInfo.FileType='mmreader'; |
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[664] | 102 | end |
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[771] | 103 | FileInfo.FileName=fileinput; |
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[664] | 104 | FileInfo.BitDepth=FileInfo.BitsPerPixel/3; |
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| 105 | end |
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| 106 | end |
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[376] | 107 | end |
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| 108 | end |
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| 109 | end |
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| 110 | end |
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