can't record docker selenium with ffmpeg and ubuntu 18












0















I have a script that starts a selenium/standalone-chrome container, starts recording with ffmpeg, and runs the selenium tests. However, it is not working with ubuntu 18, possibly because of the ffmpeg version (3.4.4 instead of 2.8.15).



I have broken down the problem into a couple commands which work fine in ubuntu 16 but not ubuntu 18:



start selenium container in terminal #1



docker run --network=host --shm-size=2g -e SCREEN_WIDTH=1920 -e SCREEN_HEIGHT=1080 selenium/standalone-chrome:3.141.59-antimony


start recording in terminal #2



rm -f test.mp4
# :99 seems to be the default for the selenium container
ffmpeg -f x11grab -video_size 1920x1080 -i :99 -codec:v libx264 -r 4 test.mp4


and I get something that looks like this



frame=    2 fps=0.1 q=-1.0 Lsize=       2kB time=00:00:00.25 bitrate=  75.9kbits/s dup=0 drop=413 speed=0.0165


the time stays at 0, and then goes up to 25msec when I stop it.



On the other hand, if I just start regular screen buffer in terminal #1



Xvfb :99 -screen 0 1920x1080x24


and run the same thing as above in terminal #2, everything works



Also, I am pretty sure that the above ffmpeg command worked in ubuntu 16, with ffmpeg-3.



So to summarise when the above ffmpeg command seems to work:



                   | ubuntu 16 (ffmpeg 3) | ubuntu 18 (ffmpeg 4)
just start Xvfb | works | works
selenium container | works | DOES NOT WORK


Any ideas?










share|improve this question



























    0















    I have a script that starts a selenium/standalone-chrome container, starts recording with ffmpeg, and runs the selenium tests. However, it is not working with ubuntu 18, possibly because of the ffmpeg version (3.4.4 instead of 2.8.15).



    I have broken down the problem into a couple commands which work fine in ubuntu 16 but not ubuntu 18:



    start selenium container in terminal #1



    docker run --network=host --shm-size=2g -e SCREEN_WIDTH=1920 -e SCREEN_HEIGHT=1080 selenium/standalone-chrome:3.141.59-antimony


    start recording in terminal #2



    rm -f test.mp4
    # :99 seems to be the default for the selenium container
    ffmpeg -f x11grab -video_size 1920x1080 -i :99 -codec:v libx264 -r 4 test.mp4


    and I get something that looks like this



    frame=    2 fps=0.1 q=-1.0 Lsize=       2kB time=00:00:00.25 bitrate=  75.9kbits/s dup=0 drop=413 speed=0.0165


    the time stays at 0, and then goes up to 25msec when I stop it.



    On the other hand, if I just start regular screen buffer in terminal #1



    Xvfb :99 -screen 0 1920x1080x24


    and run the same thing as above in terminal #2, everything works



    Also, I am pretty sure that the above ffmpeg command worked in ubuntu 16, with ffmpeg-3.



    So to summarise when the above ffmpeg command seems to work:



                       | ubuntu 16 (ffmpeg 3) | ubuntu 18 (ffmpeg 4)
    just start Xvfb | works | works
    selenium container | works | DOES NOT WORK


    Any ideas?










    share|improve this question

























      0












      0








      0








      I have a script that starts a selenium/standalone-chrome container, starts recording with ffmpeg, and runs the selenium tests. However, it is not working with ubuntu 18, possibly because of the ffmpeg version (3.4.4 instead of 2.8.15).



      I have broken down the problem into a couple commands which work fine in ubuntu 16 but not ubuntu 18:



      start selenium container in terminal #1



      docker run --network=host --shm-size=2g -e SCREEN_WIDTH=1920 -e SCREEN_HEIGHT=1080 selenium/standalone-chrome:3.141.59-antimony


      start recording in terminal #2



      rm -f test.mp4
      # :99 seems to be the default for the selenium container
      ffmpeg -f x11grab -video_size 1920x1080 -i :99 -codec:v libx264 -r 4 test.mp4


      and I get something that looks like this



      frame=    2 fps=0.1 q=-1.0 Lsize=       2kB time=00:00:00.25 bitrate=  75.9kbits/s dup=0 drop=413 speed=0.0165


      the time stays at 0, and then goes up to 25msec when I stop it.



      On the other hand, if I just start regular screen buffer in terminal #1



      Xvfb :99 -screen 0 1920x1080x24


      and run the same thing as above in terminal #2, everything works



      Also, I am pretty sure that the above ffmpeg command worked in ubuntu 16, with ffmpeg-3.



      So to summarise when the above ffmpeg command seems to work:



                         | ubuntu 16 (ffmpeg 3) | ubuntu 18 (ffmpeg 4)
      just start Xvfb | works | works
      selenium container | works | DOES NOT WORK


      Any ideas?










      share|improve this question














      I have a script that starts a selenium/standalone-chrome container, starts recording with ffmpeg, and runs the selenium tests. However, it is not working with ubuntu 18, possibly because of the ffmpeg version (3.4.4 instead of 2.8.15).



      I have broken down the problem into a couple commands which work fine in ubuntu 16 but not ubuntu 18:



      start selenium container in terminal #1



      docker run --network=host --shm-size=2g -e SCREEN_WIDTH=1920 -e SCREEN_HEIGHT=1080 selenium/standalone-chrome:3.141.59-antimony


      start recording in terminal #2



      rm -f test.mp4
      # :99 seems to be the default for the selenium container
      ffmpeg -f x11grab -video_size 1920x1080 -i :99 -codec:v libx264 -r 4 test.mp4


      and I get something that looks like this



      frame=    2 fps=0.1 q=-1.0 Lsize=       2kB time=00:00:00.25 bitrate=  75.9kbits/s dup=0 drop=413 speed=0.0165


      the time stays at 0, and then goes up to 25msec when I stop it.



      On the other hand, if I just start regular screen buffer in terminal #1



      Xvfb :99 -screen 0 1920x1080x24


      and run the same thing as above in terminal #2, everything works



      Also, I am pretty sure that the above ffmpeg command worked in ubuntu 16, with ffmpeg-3.



      So to summarise when the above ffmpeg command seems to work:



                         | ubuntu 16 (ffmpeg 3) | ubuntu 18 (ffmpeg 4)
      just start Xvfb | works | works
      selenium container | works | DOES NOT WORK


      Any ideas?







      selenium docker ffmpeg xvfb






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 1 at 13:54









      Alex028502Alex028502

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