Problem creating avi in Windows 7
in [Matlab]
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From: Cassandra on 15 Jan 2010 11:03 Hello John and Onomitra, I have found that this code: > aviobj = avifile('example1.avi','compression','None'); also leads to a static movie and 'window bleed'. When I try Cinepak instead: > aviobj = avifile('example1.avi','compression','Cinepak'); MATLAB is unable to find the codec (even if I drop a copy into the same folder). Any suggestions? What worked for you, John? I am running Windows 7 with MATLAB R2009b. Thank you in advance for your assistance. Cheers, Cassandra "Onomitra Ghosh" <oghosh(a)mathworks.com> wrote in message <hccesh$kho$2(a)fred.mathworks.com>... > Hi John, > > Try using: > > aviobj = avifile('example1.avi','compression','None'); > > Thanks, > > Onomitra > > "John Ramshur" <jramshur(a)gmail.com> wrote in message > news:hcbfl6$8og$1(a)fred.mathworks.com... > > System Info: Windows 7, MATLAB Version 7.7.0.471 (R2008b) > > > > I'm trying to create an avi in windows 7, but I'm running into two issues. > > > > 1. The resulting avi video is static and whatever was behind the figure > > during creation bleeds into the video. See this link for an example: > > http://www.ramshurweb.com/software/example1.avi > > > > 2. I'm getting this warning when trying to use the default compression: > > "Warning: Cannot locate Indeo5 compressor, using 'None' as the compression > > type. > > See Mathworks Technical Solution 1-4G50RI for more information. " I can't > > seem to find the codec/compressor for anything other than XP. I have > > ffdshow...is there anything in there i could use? > > > > Please help! > > > > > > %% Sample AVI creation code from the avifile help documentation. > > > > t = linspace(0,2.5*pi,40); > > fact = 10*sin(t); > > fig=figure; > > aviobj = avifile('example1.avi','compression','Cinepak'); > > [x,y,z] = peaks; > > for k=1:length(fact) > > h = surf(x,y,fact(k)*z); > > set(gca,'nextplot','replacechildren'); > > axis([-3 3 -3 3 -80 80]) > > axis off > > caxis([-90 90]) > > F = getframe(fig); > > aviobj = addframe(aviobj,F); > > end > > close(fig) > > aviobj = close(aviobj); > > >
From: Cassandra on 15 Jan 2010 11:29 An update: Changing the rendering from OpenGL to zbuffer removed the bleed problem. (solution from: http://groups.google.com/group/comp.soft-sys.matlab/browse_thread/thread/b8dfca5cdc360f77/e91248fab199064a?lnk=raot&fwc=1&pli=1 ) I still cannot access known compression formats. I am running Windows 7 x64. Thanks again, Cassandra "Cassandra " <r.cassandra--remove(a)rocketmail.com> wrote in message <hiq3k9$mv8$1(a)fred.mathworks.com>... > Hello John and Onomitra, > > I have found that this code: > > aviobj = avifile('example1.avi','compression','None'); > also leads to a static movie and 'window bleed'. > > When I try Cinepak instead: > > aviobj = avifile('example1.avi','compression','Cinepak'); > MATLAB is unable to find the codec (even if I drop a copy into the same folder). > > Any suggestions? What worked for you, John? I am running Windows 7 with MATLAB R2009b. Thank you in advance for your assistance. > > Cheers, > Cassandra > > > "Onomitra Ghosh" <oghosh(a)mathworks.com> wrote in message <hccesh$kho$2(a)fred.mathworks.com>... > > Hi John, > > > > Try using: > > > > aviobj = avifile('example1.avi','compression','None'); > > > > Thanks, > > > > Onomitra > > > > "John Ramshur" <jramshur(a)gmail.com> wrote in message > > news:hcbfl6$8og$1(a)fred.mathworks.com... > > > System Info: Windows 7, MATLAB Version 7.7.0.471 (R2008b) > > > > > > I'm trying to create an avi in windows 7, but I'm running into two issues. > > > > > > 1. The resulting avi video is static and whatever was behind the figure > > > during creation bleeds into the video. See this link for an example: > > > http://www.ramshurweb.com/software/example1.avi > > > > > > 2. I'm getting this warning when trying to use the default compression: > > > "Warning: Cannot locate Indeo5 compressor, using 'None' as the compression > > > type. > > > See Mathworks Technical Solution 1-4G50RI for more information. " I can't > > > seem to find the codec/compressor for anything other than XP. I have > > > ffdshow...is there anything in there i could use? > > > > > > Please help! > > > > > > > > > %% Sample AVI creation code from the avifile help documentation. > > > > > > t = linspace(0,2.5*pi,40); > > > fact = 10*sin(t); > > > fig=figure; > > > aviobj = avifile('example1.avi','compression','Cinepak'); > > > [x,y,z] = peaks; > > > for k=1:length(fact) > > > h = surf(x,y,fact(k)*z); > > > set(gca,'nextplot','replacechildren'); > > > axis([-3 3 -3 3 -80 80]) > > > axis off > > > caxis([-90 90]) > > > F = getframe(fig); > > > aviobj = addframe(aviobj,F); > > > end > > > close(fig) > > > aviobj = close(aviobj); > > > > >
From: John Ramshur on 15 Jan 2010 21:50 I did solve the problem, however I don't remember exactly what worked. I'm using 32bit OS. If it's of any help here's some the code I was using. %% create figure h.f=figure('position',[100 300 800 600]); set(h.f,'DoubleBuffer','on'); %% create movie mov = avifile('example1.avi','fps',30,'compression','Cinepak','quality',100); try for i=1:size(x,1)-1 %plot something here... drawnow; F = getframe(h.f); mov = addframe(mov,F); end mov = close(mov); catch ME mov = close(mov); error(ME.message) end "Cassandra " <r.cassandra--remove(a)rocketmail.com> wrote in message <hiq54i$21k$1(a)fred.mathworks.com>... > An update: > > Changing the rendering from OpenGL to zbuffer removed the bleed problem. > (solution from: http://groups.google.com/group/comp.soft-sys.matlab/browse_thread/thread/b8dfca5cdc360f77/e91248fab199064a?lnk=raot&fwc=1&pli=1 ) > > I still cannot access known compression formats. > > I am running Windows 7 x64. > > Thanks again, > Cassandra > > > "Cassandra " <r.cassandra--remove(a)rocketmail.com> wrote in message <hiq3k9$mv8$1(a)fred.mathworks.com>... > > Hello John and Onomitra, > > > > I have found that this code: > > > aviobj = avifile('example1.avi','compression','None'); > > also leads to a static movie and 'window bleed'. > > > > When I try Cinepak instead: > > > aviobj = avifile('example1.avi','compression','Cinepak'); > > MATLAB is unable to find the codec (even if I drop a copy into the same folder). > > > > Any suggestions? What worked for you, John? I am running Windows 7 with MATLAB R2009b. Thank you in advance for your assistance. > > > > Cheers, > > Cassandra > > > > > > "Onomitra Ghosh" <oghosh(a)mathworks.com> wrote in message <hccesh$kho$2(a)fred.mathworks.com>... > > > Hi John, > > > > > > Try using: > > > > > > aviobj = avifile('example1.avi','compression','None'); > > > > > > Thanks, > > > > > > Onomitra > > > > > > "John Ramshur" <jramshur(a)gmail.com> wrote in message > > > news:hcbfl6$8og$1(a)fred.mathworks.com... > > > > System Info: Windows 7, MATLAB Version 7.7.0.471 (R2008b) > > > > > > > > I'm trying to create an avi in windows 7, but I'm running into two issues. > > > > > > > > 1. The resulting avi video is static and whatever was behind the figure > > > > during creation bleeds into the video. See this link for an example: > > > > http://www.ramshurweb.com/software/example1.avi > > > > > > > > 2. I'm getting this warning when trying to use the default compression: > > > > "Warning: Cannot locate Indeo5 compressor, using 'None' as the compression > > > > type. > > > > See Mathworks Technical Solution 1-4G50RI for more information. " I can't > > > > seem to find the codec/compressor for anything other than XP. I have > > > > ffdshow...is there anything in there i could use? > > > > > > > > Please help! > > > > > > > > > > > > %% Sample AVI creation code from the avifile help documentation. > > > > > > > > t = linspace(0,2.5*pi,40); > > > > fact = 10*sin(t); > > > > fig=figure; > > > > aviobj = avifile('example1.avi','compression','Cinepak'); > > > > [x,y,z] = peaks; > > > > for k=1:length(fact) > > > > h = surf(x,y,fact(k)*z); > > > > set(gca,'nextplot','replacechildren'); > > > > axis([-3 3 -3 3 -80 80]) > > > > axis off > > > > caxis([-90 90]) > > > > F = getframe(fig); > > > > aviobj = addframe(aviobj,F); > > > > end > > > > close(fig) > > > > aviobj = close(aviobj); > > > > > > >
From: Cassandra on 22 Jan 2010 16:38 Hi John, Thank you for the suggestion. Unfortunately, changing the code did not work for me. My rather ugly work around: (I) Install and configure Microsoft Visual C++ 64 bit compiler using the instructions in: [1] http://jenshuebel.wordpress.com/2009/02/12/visual-c-2008-express-edition-and-64-bit-targets/ [2] http://msdn.microsoft.com/en-us/library/9yb4317s%28VS.80%29.aspx [3] http://msdn.microsoft.com/en-us/library/9yb4317s%28VS.80%29.aspx (II) Download and recompile mgpwrite from MATLAB Central for my machine: [4] http://www.mathworks.com/matlabcentral/fileexchange/309-mpgwrite (note, for whatever reason, compiling only worked when used -v) (III) Drop the .dll file into my working directory Voila! A movie that plays correctly. I hope this helps someone else... Cheers, Cassandra "John Ramshur" <jramshur(a)gmail.com> wrote in message <hir9gv$ou9$1(a)fred.mathworks.com>... > I did solve the problem, however I don't remember exactly what worked. I'm using 32bit OS. If it's of any help here's some the code I was using. > > %% create figure > h.f=figure('position',[100 300 800 600]); > set(h.f,'DoubleBuffer','on'); > > %% create movie > mov = avifile('example1.avi','fps',30,'compression','Cinepak','quality',100); > try > for i=1:size(x,1)-1 > %plot something here... > drawnow; > F = getframe(h.f); > mov = addframe(mov,F); > end > mov = close(mov); > catch ME > mov = close(mov); > error(ME.message) > end > >
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