[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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[397] | 18 | function [FileType,FileInfo,VideoObject]=get_file_type(fileinput) |
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[595] | 19 | FileType='txt';%default, text file |
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[376] | 20 | FileInfo=[]; |
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[397] | 21 | VideoObject=[]; |
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[376] | 22 | [tild,tild,FileExt]=fileparts(fileinput); |
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| 23 | |
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| 24 | switch FileExt |
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| 25 | case '.fig' |
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| 26 | FileType='figure'; |
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| 27 | case '.xml' |
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| 28 | FileType='xml'; |
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| 29 | case '.xls' |
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| 30 | FileType='xls'; |
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| 31 | otherwise |
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[472] | 32 | if ~isempty(FileExt) && ~isempty(imformats(regexprep(FileExt,'^.',''))) |
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[376] | 33 | try |
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| 34 | imainfo=imfinfo(fileinput); |
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| 35 | if length(imainfo) >1 %case of image with multiple frames |
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| 36 | FileType='multimage'; |
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[469] | 37 | FileInfo=imainfo(1);%take info from the first frame |
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| 38 | FileInfo.NumberOfFrames=length(imainfo); |
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[446] | 39 | else |
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[469] | 40 | FileType='image'; |
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[446] | 41 | FileInfo=imainfo; |
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[469] | 42 | FileInfo.NumberOfFrames=1; |
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[376] | 43 | end |
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| 44 | end |
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| 45 | else |
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[386] | 46 | error_nc=0; |
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[376] | 47 | try |
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| 48 | Data=nc2struct(fileinput,'ListGlobalAttribute','absolut_time_T0','Conventions',... |
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| 49 | 'CivStage','patch2','fix2','civ2','patch','fix'); |
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[387] | 50 | if isfield(Data,'Txt') && ~isempty(Data.Txt) |
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[386] | 51 | error_nc=1; |
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| 52 | else |
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| 53 | if ~isempty(Data.absolut_time_T0') |
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| 54 | FileType='civx'; % test for civx velocity fields |
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| 55 | if ~isempty(Data.patch2) && isequal(Data.patch2,1) |
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| 56 | FileInfo.CivStage=6; |
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| 57 | elseif ~isempty(Data.fix2) && isequal(Data.fix2,1) |
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| 58 | FileInfo.CivStage=5; |
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| 59 | elseif ~isempty(Data.civ2) && isequal(Data.civ2,1); |
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| 60 | FileInfo.CivStage=4; |
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| 61 | elseif ~isempty(Data.patch) && isequal(Data.patch,1); |
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| 62 | FileInfo.CivStage=3; |
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| 63 | elseif ~isempty(Data.fix) && isequal(Data.fix,1); |
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| 64 | FileInfo.CivStage=2; |
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| 65 | elseif ~isempty(Data.absolut_time_T0) && ~isempty(Data.hart) |
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| 66 | FileInfo.CivStage=1; |
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| 67 | end |
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| 68 | elseif strcmp(Data.Conventions,'uvmat/civdata') |
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| 69 | FileType='civdata'; % test for civx velocity fields |
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| 70 | FileInfo.CivStage=Data.CivStage; |
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| 71 | else |
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| 72 | FileType='netcdf'; |
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[376] | 73 | end |
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| 74 | end |
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[386] | 75 | catch ME |
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| 76 | error_nc=1; |
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[376] | 77 | end |
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[386] | 78 | if error_nc |
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[387] | 79 | try |
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[397] | 80 | if exist('VideoReader.m','file')%recent version of Matlab |
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| 81 | VideoObject=VideoReader(fileinput); |
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[469] | 82 | FileInfo=get(VideoObject); |
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[397] | 83 | FileType='video'; |
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[435] | 84 | elseif exist('mmreader.m','file')% Matlab 2009a |
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| 85 | VideoObject=mmreader(fileinput); |
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[469] | 86 | FileInfo=get(VideoObject); |
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[435] | 87 | FileType='mmreader'; |
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[469] | 88 | end |
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| 89 | FileInfo.BitDepth=FileInfo.BitsPerPixel/3; |
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[387] | 90 | end |
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[376] | 91 | end |
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| 92 | end |
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| 93 | end |
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