yarpdataplayer: cannot load data dump with 1 entry

[gsaponaro]

Hi @vtikha, I would like to use a data dump with exactly 1 entry of image type. I recorded it with yarpdatadumper (download link at the bottom), but when I try to load it in yarpdataplayer I get this error

There was a problem reading
data.log
please check its validity

I looked at the function Utilities::checkLogValidity(const char *filename) in utils.cpp which raises that error. While the file info.log passes the check (because it has 2 lines), data.log fails it (1 line).

One quick way to fix would be to change L229 from

            if (itr >= 1){

to

            if (itr >= 0){

(Or remove altogether the if: L229 and L235.)

BTW, this is not urgent for me, I'm running the modification locally. Just wanted to make you aware of this corner case. :) Let me know if I should submit a PR.

PS: the data was acquired with yarpdatadumper --name /left --connect /icub/camcalib/left/out --type image --downsample 30 and hitting ctrl+c after 1 second. Here is the download link.

[vtikha]

yarpdataplayer can now replay a one image dataset.

[drdanz]

Fixed in 0307c0e

[gsaponaro]

Thanks!

[drdanz]

And in a7f51e4