large avi files

[derya k=?UTF-8?Q?=C3=83=C2=B6se?=]

How can i open the large avi files?

[Rainer M. Engel]

Dear Derya.

> How can i open the large avi files?

There has been lots of information on this thread. Michael Schmid gave
some hints on this and I would like to second one of Johannes' thoughts.

ImageJ should have core functions working and large AVI sounds a bit
like a good idea in the wrong place. AVI = AudioVideoInterleave. There
is no sense in making ImageJ a full audio editor suite too ;-)

We do work with al sorts of stream based formats here but there is
continuously no need to move away from single frame formats like tif i.e.

AVI is also not the best choice for codecs of higher quantizations than
8bit, since these are not supported so good. If your data is 8bit, I
would suggest to use a frame server or simply ffmpeg and to convert
"lossless" to an image sequence. This works both ways.

> ffmpeg.exe -i L:\YOUR-CLIP.avi L:\temp\image-seq_%04d.png

If playback is the only aspect for using the AVI-Container, try a free
RAM-Player like..
http://djv.sourceforge.net/

Hope this helps..

Regards,
Rainer


--
Rainer M. Engel, Dipl. Digital Artist
scientific|Media GbR
Pichelsdorferstr. 143
D-13595 Berlin

[dscho]

On Mon, 27 Feb 2012, Derya Kose wrote:

> How can i open the large avi files?

Yes. Try http://loci.wisc.edu/software/bio-formats

[Michael Schmid]

Hi Derya,

if you upgrade to the newest version (actually, 1.46c or later), ImageJ has no limitation to the size of AVI files; you can open them as virtual stack; so only the current slice (current frame in movie language) is in memory.

There is a limitation concerning the codecs, however:
Only a very limited number of codecs is supported. ImageJ can read many of the uncompressed or barely compressed (color subsampled) AVI formats, as well as PNG and JPG encoded frames (the latter format is also known as MJPG).
If ImageJ reports a that the compression type of your AVI is not supported, see whether the bioformats plugin supports it:
  http://loci.wisc.edu/bio-formats-format/avi-audio-video-interleave
Otherwise convert to a supported type or single images with a video conversion tool like ffmpeg.
E.g.,
  ffmpeg -i infile.avi -pix_fmt nv12 -f avi -vcodec rawvideo outfile.avi

Michael
________________________________________________________________
On Feb 27, 2012, at 09:25, Derya Kose wrote:

> How can i open the large avi files?