[784] | 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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[1033] | 8 | % ='figure': Matlab figure |
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| 9 | % ='xml': xml file |
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| 10 | % ='xls': Excel file |
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| 11 | % ='dat': text file for data, |
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| 12 | % ='image': image format recognised by Matlab |
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| 13 | % ='multimage': image format recognised by Matlab with multiple frames |
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| 14 | % ='video': video movie file |
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| 15 | % ='mmreader': video from old versions of Matlab (<2009) |
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| 16 | % ='rdvision': images in binary format from company rdvision |
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| 17 | % ='image_DaVis': images from softwar DaVis (company LaVision) |
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| 18 | % ='cine_phantom': images from fast camera Phantom |
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| 19 | % ='bin': binary file without specific organisation |
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| 20 | % ='netcdf': netcdf file |
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| 21 | % ='civdata': netcdf files provided by civ_series |
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| 22 | % ='civx': netcdf files provided by the obsolete program civx (in fortran) |
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| 23 | % ='pivdata_fluidimage': PIV data from software 'fluidimage' |
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[1040] | 24 | % .FieldType='image' for all kinds of images and movies, =FileType else |
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| 25 | % .FileIndexing='on'/'off', for data files (when series of indexed files are expected) |
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[784] | 26 | % .Height: image height in pixels |
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| 27 | % .Width: image width in pixels |
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| 28 | % .BitDepth: nbre of bits per pixel (8 of 16) |
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| 29 | % .ColorType: 'greyscale' or 'color' |
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[1040] | 30 | % .NumberOfFrames: defined for images or movies |
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[784] | 31 | % .FrameRate: nbre of frames per second, =[] for images |
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| 32 | % VideoObject: in case of video |
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| 33 | % |
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| 34 | % INPUT: |
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| 35 | % fileinput: name, including path, of the file to analyse |
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[809] | 36 | |
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| 37 | %======================================================================= |
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[1027] | 38 | % Copyright 2008-2018, LEGI UMR 5519 / CNRS UGA G-INP, Grenoble, France |
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[809] | 39 | % http://www.legi.grenoble-inp.fr |
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| 40 | % Joel.Sommeria - Joel.Sommeria (A) legi.cnrs.fr |
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| 41 | % |
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| 42 | % This file is part of the toolbox UVMAT. |
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| 43 | % |
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| 44 | % UVMAT is free software; you can redistribute it and/or modify |
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| 45 | % it under the terms of the GNU General Public License as published |
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| 46 | % by the Free Software Foundation; either version 2 of the license, |
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| 47 | % or (at your option) any later version. |
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| 48 | % |
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| 49 | % UVMAT is distributed in the hope that it will be useful, |
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| 50 | % but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 51 | % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 52 | % GNU General Public License (see LICENSE.txt) for more details. |
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| 53 | %======================================================================= |
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| 54 | |
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[784] | 55 | function [FileInfo,VideoObject]=get_file_info(fileinput) |
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| 56 | VideoObject=[]; |
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[1041] | 57 | FileInfo.FileType='';% input file does not exist |
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| 58 | FileInfo.FieldType=''; %default output |
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| 59 | % check the existence (not possible for OpenDAP data) |
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[1022] | 60 | if ~isempty(regexp(fileinput,'^http://'))|| exist(fileinput,'file') |
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[784] | 61 | FileInfo.FileName=fileinput; |
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| 62 | FileInfo.FileType='txt'; %default |
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| 63 | else |
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[1041] | 64 | return %input file does not exist. |
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[784] | 65 | end |
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| 66 | [tild,tild,FileExt]=fileparts(fileinput);%get the file extension FileExt |
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| 67 | |
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| 68 | switch FileExt |
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| 69 | case '.fig' |
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| 70 | FileInfo.FileType='figure'; |
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| 71 | case {'.xml','.xls','.dat','.bin'} |
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| 72 | FileInfo.FileType=regexprep(FileExt,'^.','');% eliminate the dot of the extension; |
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[790] | 73 | case {'.seq','.sqb'} |
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| 74 | [A,FileInfo,timestamps,errormsg]=read_rdvision(fileinput,[]); |
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[1007] | 75 | case '.im7' |
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| 76 | try |
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| 77 | Input=readimx(fileinput); |
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| 78 | Image=Input.Frames{1}.Components{1}.Planes{1}; |
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| 79 | FileInfo.FileType='image_DaVis'; |
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| 80 | FileInfo.NumberOfFrames=numel(Input.Frames); |
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| 81 | FileInfo.Height=size(Image,2); |
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| 82 | FileInfo.Width=size(Image,1); |
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[1032] | 83 | FileInfo.TimeName='timestamp'; |
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[1033] | 84 | for ilist=1:numel(Input.Attributes) |
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| 85 | if strcmp(Input.Attributes{ilist}.Name,'_Date') |
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| 86 | DateString=Input.Attributes{ilist}.Value; |
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| 87 | end |
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| 88 | if strcmp(Input.Attributes{ilist}.Name,'_Time') |
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| 89 | TimeString=Input.Attributes{ilist}.Value; |
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| 90 | end |
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| 91 | end |
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[1007] | 92 | catch ME |
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[1033] | 93 | msgbox_uvmat('ERROR',{ME.message;'reading image from DaVis is possible only with Matlab version 2013 or earlier'}) |
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[1007] | 94 | return |
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| 95 | end |
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[946] | 96 | case '.h5' |
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| 97 | hinfo=hdf5info(fileinput); |
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| 98 | if strcmp(hinfo.GroupHierarchy.Attributes(1).Value.Data,'MultipassPIVResults') |
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| 99 | FileInfo.FileType='pivdata_fluidimage'; |
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| 100 | FileInfo.CivStage=6; % A MODIFIER |
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| 101 | end |
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[979] | 102 | case '.cine' |
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| 103 | [FileInfo,BitmapInfoHeader, CameraSetup]=readCineHeader(fileinput); |
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| 104 | FileInfo.FileType='cine_phantom'; |
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| 105 | FileInfo.NumberOfFrames=FileInfo.ImageCount; |
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| 106 | FileInfo.FrameRate=CameraSetup.FrameRate; |
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| 107 | FileInfo.Height=BitmapInfoHeader.biHeight; |
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| 108 | FileInfo.Width=BitmapInfoHeader.biWidth; |
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[991] | 109 | FileInfo.BitDepth=BitmapInfoHeader.biBitCount; |
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[1032] | 110 | FileInfo.TimeName='video'; |
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[784] | 111 | otherwise |
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| 112 | if ~isempty(FileExt)% exclude empty extension |
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| 113 | FileExt=regexprep(FileExt,'^.','');% eliminate the dot of the extension |
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| 114 | if ~isempty(FileExt) |
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| 115 | if ~isempty(imformats(FileExt))%case of images |
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| 116 | try |
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| 117 | imainfo=imfinfo(fileinput); |
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| 118 | if length(imainfo) >1 %case of image with multiple frames |
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| 119 | FileInfo=imainfo(1);%take info from the first frame |
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| 120 | FileInfo.NumberOfFrames=length(imainfo); |
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| 121 | FileInfo.FileType='multimage'; |
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| 122 | else |
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| 123 | FileInfo=imainfo; |
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| 124 | FileInfo.NumberOfFrames=1; |
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| 125 | FileInfo.FileType='image'; |
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| 126 | end |
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| 127 | FileInfo.FileName=FileInfo.Filename; %correct the info given by imfinfo |
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| 128 | nbfield=numel(fieldnames(FileInfo)); |
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| 129 | FileInfo=orderfields(FileInfo,[nbfield nbfield-1 nbfield-2 (1:nbfield-3)]); %reorder the fields of fileInfo for clarity |
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| 130 | end |
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| 131 | else |
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| 132 | error_nc=0; |
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| 133 | try |
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| 134 | [Data,tild,tild,errormsg]=nc2struct(fileinput,[]); |
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| 135 | if ~isempty(errormsg) |
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| 136 | error_nc=1; |
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| 137 | else |
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| 138 | if isfield(Data,'absolut_time_T0') && isfield(Data,'hart') && ~isempty(Data.absolut_time_T0) && ~isempty(Data.hart) |
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| 139 | FileInfo.FileType='civx'; |
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| 140 | if isfield(Data,'patch2') && isequal(Data.patch2,1) |
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| 141 | FileInfo.CivStage=6; |
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| 142 | elseif isfield(Data,'fix2') && isequal(Data.fix2,1) |
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| 143 | FileInfo.CivStage=5; |
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| 144 | elseif isfield(Data,'civ2')&& isequal(Data.civ2,1) |
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| 145 | FileInfo.CivStage=4; |
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| 146 | elseif isfield(Data,'patch')&&isequal(Data.patch,1) |
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| 147 | FileInfo.CivStage=3; |
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| 148 | elseif isfield(Data,'fix')&&isequal(Data.fix,1) |
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| 149 | FileInfo.CivStage=2; |
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| 150 | else |
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| 151 | FileInfo.CivStage=1; |
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| 152 | end |
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| 153 | elseif isfield(Data,'Conventions') && strcmp(Data.Conventions,'uvmat/civdata') |
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| 154 | FileInfo.FileType='civdata'; % test for civx velocity fields |
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| 155 | FileInfo.CivStage=Data.CivStage; |
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| 156 | else |
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| 157 | FileInfo.FileType='netcdf'; |
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| 158 | FileInfo.ListVarName=Data.ListVarName; |
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| 159 | end |
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| 160 | end |
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| 161 | catch ME |
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| 162 | error_nc=1; |
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| 163 | end |
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| 164 | if error_nc |
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| 165 | try |
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| 166 | if exist('VideoReader.m','file')%recent version of Matlab |
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| 167 | VideoObject=VideoReader(fileinput); |
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| 168 | FileInfo=get(VideoObject); |
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| 169 | FileInfo.FileType='video'; |
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| 170 | elseif exist('mmreader.m','file')% Matlab 2009a |
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| 171 | VideoObject=mmreader(fileinput); |
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| 172 | FileInfo=get(VideoObject); |
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| 173 | FileInfo.FileType='mmreader'; |
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| 174 | end |
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| 175 | FileInfo.BitDepth=FileInfo.BitsPerPixel/3; |
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| 176 | FileInfo.ColorType='truecolor'; |
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[1032] | 177 | FileInfo.TimeName='video'; |
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[784] | 178 | FileInfo.FileName=fileinput; |
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| 179 | nbfield=numel(fieldnames(FileInfo)); |
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[1032] | 180 | FileInfo=orderfields(FileInfo,[nbfield nbfield-4 nbfield-3 nbfield-1 nbfield-2 (1:nbfield-5)]); %reorder the fields of fileInfo for clarity |
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[1025] | 181 | if ~isfield(FileInfo,'NumberOfFrames') |
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| 182 | FileInfo.NumberOfFrames=floor(FileInfo.Duration*FileInfo.FrameRate); |
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| 183 | end |
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[784] | 184 | end |
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| 185 | end |
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| 186 | end |
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| 187 | end |
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| 188 | end |
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[790] | 189 | end |
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[1041] | 190 | |
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[1033] | 191 | if ismember (FileInfo.FileType,{'image','image_DaVis','multimage','mmreader','cine_phantom','video','netcdf','civdata'}) |
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[790] | 192 | FileInfo.FileIndexing='on'; % allow to detect file index for scanning series |
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[1041] | 193 | else |
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| 194 | FileInfo.FileIndexing='off'; |
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[809] | 195 | end |
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[1033] | 196 | FileInfo.FieldType=FileInfo.FileType;%default |
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| 197 | switch FileInfo.FileType |
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| 198 | case {'image','multimage','video','mmreader','rdvision','image_DaVis','cine_phantom'} |
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| 199 | FileInfo.FieldType='image'; |
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[1041] | 200 | case {'civx','civdata','pivdata_fluidimage'} |
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| 201 | FileInfo.FieldType='civdata'; |
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[1033] | 202 | end |
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| 203 | |
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