Bug Report: The function `load.video` doesn't work

[JiaxiangBU]

When I run this code to extract the infomation for this sample video.

imager::load.video(system.file('extdata/tennis_sif.mpeg',package='imager'))

I get this error

Error in tryCatchList(expr, classes, parentenv, handlers) : No output was generated

I follow wiki to install the FFmpeg and check this issue https://github.com/dahtah/imager/issues/75 to make sure the FFmpeg is successfully installed and set.

[dahtah]

Can you please report which version of imager you're using, and on which platform? Run packageVersion("imager")

[JiaxiangBU]

Hi @dahtah

Here is the package version.

> packageVersion("imager")
[1] ‘0.41.2’

And the session information is posted here.

"SI"
#> [1] "SI"

^{Created on 2019-04-17 by the reprex package (v0.2.1)}

Session info

``` r devtools::session_info() #> - Session info ---------------------------------------------------------- #> setting value #> version R version 3.5.2 (2018-12-20) #> os Windows 7 x64 SP 1 #> system x86_64, mingw32 #> ui RTerm #> language (EN) #> collate Chinese (Simplified)_People's Republic of China.936 #> ctype Chinese (Simplified)_People's Republic of China.936 #> tz Asia/Taipei #> date 2019-04-17 #> #> - Packages -------------------------------------------------------------- #> package * version date lib source #> assertthat 0.2.0 2017-04-11 [1] CRAN (R 3.5.2) #> backports 1.1.3 2018-12-14 [1] CRAN (R 3.5.2) #> callr 3.1.1 2018-12-21 [1] CRAN (R 3.5.2) #> cli 1.0.1 2018-09-25 [1] CRAN (R 3.5.2) #> crayon 1.3.4 2017-09-16 [1] CRAN (R 3.5.2) #> desc 1.2.0 2018-05-01 [1] CRAN (R 3.5.2) #> devtools 2.0.1 2018-10-26 [1] CRAN (R 3.5.2) #> digest 0.6.18 2018-10-10 [1] CRAN (R 3.5.2) #> evaluate 0.12 2018-10-09 [1] CRAN (R 3.5.2) #> fs 1.2.6 2018-08-23 [1] CRAN (R 3.5.2) #> glue 1.3.0 2018-07-17 [1] CRAN (R 3.5.2) #> highr 0.7 2018-06-09 [1] CRAN (R 3.5.2) #> htmltools 0.3.6 2017-04-28 [1] CRAN (R 3.5.2) #> knitr 1.21 2018-12-10 [1] CRAN (R 3.5.2) #> magrittr 1.5 2014-11-22 [1] CRAN (R 3.5.2) #> memoise 1.1.0 2017-04-21 [1] CRAN (R 3.5.2) #> pkgbuild 1.0.2 2018-10-16 [1] CRAN (R 3.5.2) #> pkgload 1.0.2 2018-10-29 [1] CRAN (R 3.5.2) #> prettyunits 1.0.2 2015-07-13 [1] CRAN (R 3.5.2) #> processx 3.2.1 2018-12-05 [1] CRAN (R 3.5.2) #> ps 1.3.0 2018-12-21 [1] CRAN (R 3.5.2) #> R6 2.3.0 2018-10-04 [1] CRAN (R 3.5.2) #> Rcpp 1.0.0 2018-11-07 [1] CRAN (R 3.5.2) #> remotes 2.0.2 2018-10-30 [1] CRAN (R 3.5.2) #> rlang 0.3.3 2019-03-29 [1] CRAN (R 3.5.3) #> rmarkdown 1.11 2018-12-08 [1] CRAN (R 3.5.2) #> rprojroot 1.3-2 2018-01-03 [1] CRAN (R 3.5.2) #> sessioninfo 1.1.1 2018-11-05 [1] CRAN (R 3.5.2) #> stringi 1.2.4 2018-07-20 [1] CRAN (R 3.5.2) #> stringr 1.3.1 2018-05-10 [1] CRAN (R 3.5.2) #> usethis 1.5.0 2019-04-07 [1] CRAN (R 3.5.3) #> withr 2.1.2 2018-03-15 [1] CRAN (R 3.5.2) #> xfun 0.4 2018-10-23 [1] CRAN (R 3.5.2) #> yaml 2.2.0 2018-07-25 [1] CRAN (R 3.5.2) #> #> [1] C:/Program Files/R/R-3.5.2/library ```