Suitable parameters for hours of screen capture

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP












1















I need suitable parameters for very, very long screen captures using ffmpeg.



  • Quality: Only occasionally needed. If text is readable, that's enough usually. I can use -qscale:v *[0-32]*, of which higher actually means lower quality.

  • Efficiency: I expect the output video file size to increase nearly by nothing when nothing on the screen is moving.

  • In webm, I noticed a weakness that skipping to places not near the beginning of the video can be slow. Am I doing anything wrong? This only happens to webm.

My current setup:



ffmpeg -f x11grab -r 15 -i -qscale:v 32 -vcodec vp9 Screencast.webm


(15fps is enough for now)



Do you know an alternative?










share|improve this question




























    1















    I need suitable parameters for very, very long screen captures using ffmpeg.



    • Quality: Only occasionally needed. If text is readable, that's enough usually. I can use -qscale:v *[0-32]*, of which higher actually means lower quality.

    • Efficiency: I expect the output video file size to increase nearly by nothing when nothing on the screen is moving.

    • In webm, I noticed a weakness that skipping to places not near the beginning of the video can be slow. Am I doing anything wrong? This only happens to webm.

    My current setup:



    ffmpeg -f x11grab -r 15 -i -qscale:v 32 -vcodec vp9 Screencast.webm


    (15fps is enough for now)



    Do you know an alternative?










    share|improve this question


























      1












      1








      1








      I need suitable parameters for very, very long screen captures using ffmpeg.



      • Quality: Only occasionally needed. If text is readable, that's enough usually. I can use -qscale:v *[0-32]*, of which higher actually means lower quality.

      • Efficiency: I expect the output video file size to increase nearly by nothing when nothing on the screen is moving.

      • In webm, I noticed a weakness that skipping to places not near the beginning of the video can be slow. Am I doing anything wrong? This only happens to webm.

      My current setup:



      ffmpeg -f x11grab -r 15 -i -qscale:v 32 -vcodec vp9 Screencast.webm


      (15fps is enough for now)



      Do you know an alternative?










      share|improve this question
















      I need suitable parameters for very, very long screen captures using ffmpeg.



      • Quality: Only occasionally needed. If text is readable, that's enough usually. I can use -qscale:v *[0-32]*, of which higher actually means lower quality.

      • Efficiency: I expect the output video file size to increase nearly by nothing when nothing on the screen is moving.

      • In webm, I noticed a weakness that skipping to places not near the beginning of the video can be slow. Am I doing anything wrong? This only happens to webm.

      My current setup:



      ffmpeg -f x11grab -r 15 -i -qscale:v 32 -vcodec vp9 Screencast.webm


      (15fps is enough for now)



      Do you know an alternative?







      video ffmpeg screencasting screencast






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 19 at 8:52









      Rui F Ribeiro

      39.9k1479134




      39.9k1479134










      asked Jan 18 at 23:37









      neverMind9neverMind9

      631317




      631317




















          0






          active

          oldest

          votes











          Your Answer








          StackExchange.ready(function()
          var channelOptions =
          tags: "".split(" "),
          id: "106"
          ;
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function()
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled)
          StackExchange.using("snippets", function()
          createEditor();
          );

          else
          createEditor();

          );

          function createEditor()
          StackExchange.prepareEditor(
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: false,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          imageUploader:
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          ,
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          );



          );













          draft saved

          draft discarded


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f495372%2fsuitable-parameters-for-hours-of-screen-capture%23new-answer', 'question_page');

          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes















          draft saved

          draft discarded
















































          Thanks for contributing an answer to Unix & Linux Stack Exchange!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid


          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.

          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f495372%2fsuitable-parameters-for-hours-of-screen-capture%23new-answer', 'question_page');

          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown






          Popular posts from this blog

          How to check contact read email or not when send email to Individual?

          Displaying single band from multi-band raster using QGIS

          How many registers does an x86_64 CPU actually have?