[FFmpeg-trac] #9473(ffmpeg:new): gdigrab screen captures are interrupted by secure desktop pop-ups

FFmpeg trac at avcodec.org
Sun Oct 24 18:50:44 EEST 2021


#9473: gdigrab screen captures are interrupted by secure desktop pop-ups
-----------------------------------+--------------------------------------
             Reporter:  leopold84  |                     Type:  defect
               Status:  new        |                 Priority:  important
            Component:  ffmpeg     |                  Version:  git-master
             Keywords:  gdigrab    |               Blocked By:
             Blocking:             |  Reproduced by developer:  0
Analyzed by developer:  0          |
-----------------------------------+--------------------------------------
 '''Summary of the bug:'''

 If you start screen capture with gdigrab and any secure desktop pop-up
 will appear (UAC or anything else), capture immediately stops.

 '''How to reproduce:'''

 1. Start screen capture using '''gdigrab''' device as input
 {{{
 ffmpeg -f gdigrab -framerate 30 -i desktop output.mkv
 }}}

 2. Launch any program as administrator or make a secure desktop to appear
 any other way

 3. Once returned to the normal desktop, you will see that capture has
 stopped with the error similar to this one
 {{{
 Failed to capture image (error 5)trate=   2.2kbits/s speed=0.54x
 desktop: I/O error
 }}}

 '''Expect result:'''

 If it's not possible to capture secure desktop with gdigrab, at least make
 it so recording doesn't stop and capture a black screen instead of secure
 desktop
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9473>
FFmpeg <https://ffmpeg.org>
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