[FFmpeg-trac] #8801(undetermined:closed): x11grab of screen/area produces mp4 file without streams

FFmpeg trac at avcodec.org
Mon Jul 20 07:40:47 EEST 2020


#8801: x11grab of screen/area produces mp4 file without streams
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:
  johnaaronrose                      |
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
                                     |  needs_more_info
             Keywords:  x11grab      |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by johnaaronrose):

 Apologies. I didn't notice the reference to
 https://johnvansickle.com/ffmpeg
 I've now downloaded the amd64 source from there.  I then tried following
 the instructions from As I said before, please tell me how to download
 current FFmpeg git head ot instructions on how to do it.
 I've found instructions on how to compile FFmpeg for Ubuntu at
 https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu
 However, it failed on the installation of the various packages required
 for compilation of FFmpeg due to an unmet dependency:
 john at JohnPC:~$ sudo apt-get update -qq && sudo apt-get -y install \
 >   autoconf \
 >   automake \
 >   build-essential \
 >   cmake \
 >   git-core \
 >   libass-dev \
 >   libfreetype6-dev \
 >   libgnutls28-dev \
 >   libsdl2-dev \
 >   libtool \
 >   libva-dev \
 >   libvdpau-dev \
 >   libvorbis-dev \
 >   libxcb1-dev \
 >   libxcb-shm0-dev \
 >   libxcb-xfixes0-dev \
 >   pkg-config \
 >   texinfo \
 >   wget \
 >   yasm \
 >   zlib1g-dev
 [sudo] password for john:

 Reading package lists... Done
 Building dependency tree
 Reading state information... Done
 Note, selecting 'git' instead of 'git-core'
 autoconf is already the newest version (2.69-11).
 autoconf set to manually installed.
 automake is already the newest version (1:1.15.1-3ubuntu2).
 automake set to manually installed.
 build-essential is already the newest version (12.4ubuntu1).
 build-essential set to manually installed.
 libfreetype6-dev is already the newest version (2.8.1-2ubuntu2).
 libfreetype6-dev set to manually installed.
 libtool is already the newest version (2.4.6-2).
 pkg-config is already the newest version (0.29.1-0ubuntu2).
 pkg-config set to manually installed.
 zlib1g-dev is already the newest version (1:1.2.11.dfsg-0ubuntu2).
 zlib1g-dev set to manually installed.
 texinfo is already the newest version (6.5.0.dfsg.1-2).
 texinfo set to manually installed.
 cmake is already the newest version (3.10.2-1ubuntu2.18.04.1).
 git is already the newest version (1:2.17.1-1ubuntu0.7).
 libxcb-shm0-dev is already the newest version (1.13-2~ubuntu18.04).
 libxcb-shm0-dev set to manually installed.
 libxcb1-dev is already the newest version (1.13-2~ubuntu18.04).
 libxcb1-dev set to manually installed.
 wget is already the newest version (1.19.4-1ubuntu2.2).
 Some packages could not be installed. This may mean that you have
 requested an impossible situation or if you are using the unstable
 distribution that some required packages have not yet been created
 or been moved out of Incoming.
 The following information may help to resolve the situation:

 The following packages have unmet dependencies.
  libsdl2-dev : Depends: libsdl2-2.0-0 (= 2.0.8+dfsg1-1ubuntu1.18.04.4) but
 2.0.9+dfsg1-1ubuntu1 is to be installed
 E: Unable to correct problems, you have held broken packages.
 What is the solution to that?

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8801#comment:5>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


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