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• avcodec/v210dec : Don't cast const away

  6 septembre 2023, par Andreas Rheinhardt

  avcodec/v210dec : Don't cast const away
  Reviewed-by : Paul B Mahol <onemda@gmail.com>
  
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/v210dec.c

• avformat/movenc : Explicitly address potential division by zero.

  27 avril 2017, par Lucas Cooper

  avformat/movenc : Explicitly address potential division by zero.
  find_fps attempts to infer framerate from AVCodec's timebase. When this
  
  results in a frame rate that isn't explicitly marked as supported in
  
  av_timecode_check_frame_rate, find_fps returns the AVStream's
  
  avg_frame_rate, which, per avformat.h, _may_ be set (or not).
  mov_get_mpeg2_xdcam_codec_tag, mov_get_h264_codec_tag and
  
  find_compressor attempt to call av_q2d on the return value of find_fps,
  
  which in the above case, may result in division by zero and therefore,
  
  an undefined frame rate when NaN is converted to int.
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/movenc.c

• Install gstreamer on EC2 Amazon Linux AMI ?

  6 décembre 2015, par vy32

  I’m trying to install QT5.5 on Amazon EC2 Linux, which apparently requires that I install some kind of multimedia support. It looks like that comes from gstreamer.

  yum search gstreamer turns up :

  [ec2-user@ip-172-30-1-58 ~]$ yum search gstreamer
  
  Loaded plugins: priorities, update-motd, upgrade-helper
  
  23 packages excluded due to repository priority protections
  
  ============================================== N/S matched: gstreamer ==============================================
  
  gstreamer-ffmpeg.x86_64 : GStreamer FFmpeg-based plug-ins
  
  gstreamer-ffmpeg-debuginfo.x86_64 : Debug information for package gstreamer-ffmpeg
  
  gstreamer-plugins-bad.x86_64 : GStreamer streaming media framework "bad" plug-ins
  
  gstreamer-plugins-bad-debuginfo.x86_64 : Debug information for package gstreamer-plugins-bad
  
  gstreamer-plugins-bad-nonfree.x86_64 : Non Free GStreamer streaming media framework "bad" plug-ins
  
  gstreamer-plugins-bad-nonfree-debuginfo.x86_64 : Debug information for package gstreamer-plugins-bad-nonfree
  
  gstreamer-plugins-ugly.x86_64 : GStreamer streaming media framework "ugly" plug-ins
  
  gstreamer-plugins-ugly-debuginfo.x86_64 : Debug information for package gstreamer-plugins-ugly
  
  gstreamer-plugins-ugly-devel-docs.noarch : Development documentation for the GStreamer "ugly" plug-ins
  
  gstreamer1-libav.x86_64 : GStreamer 1.0 libav-based plug-ins
  
  gstreamer1-libav-debuginfo.x86_64 : Debug information for package gstreamer1-libav
  
  gstreamer1-plugins-bad-freeworld.x86_64 : GStreamer 1.0 streaming media framework "bad" plug-ins
  
  gstreamer1-plugins-bad-freeworld-debuginfo.x86_64 : Debug information for package gstreamer1-plugins-bad-freeworld
  
  gstreamer1-plugins-ugly.x86_64 : GStreamer 1.0 streaming media framework "ugly" plug-ins
  
  gstreamer1-plugins-ugly-debuginfo.x86_64 : Debug information for package gstreamer1-plugins-ugly
  
  gstreamer1-plugins-ugly-devel-docs.noarch : Development documentation for the GStreamer "ugly" plug-ins
  
  gstreamer1-vaapi.x86_64 : GStreamer plugins to use VA API video acceleration
  
  gstreamer1-vaapi-debuginfo.x86_64 : Debug information for package gstreamer1-vaapi
  
  gstreamer1-vaapi-devel.x86_64 : Development files for gstreamer1-vaapi
  
  qt-gstreamer.x86_64 : C++ bindings for GStreamer with a Qt-style API
  
  qt-gstreamer-debuginfo.x86_64 : Debug information for package qt-gstreamer
  
  qt-gstreamer-devel.x86_64 : Header files and development documentation for qt-gstreamer
  
  
  
    Name and summary matches only, use "search all" for everything.
  
  [ec2-user@ip-172-30-1-58 ~]$ %

  However, when I try to install one of these, I get this error :

  $ sudo yum install -y gstreamer-ffmpeg
  
  Loaded plugins: priorities, update-motd, upgrade-helper
  
  23 packages excluded due to repository priority protections
  
  Resolving Dependencies
  
  --> Running transaction check
  
  ---> Package gstreamer-ffmpeg.x86_64 0:0.10.13-15.el7.nux will be installed
  
  --> Processing Dependency: liborc-0.4.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstvideo-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstreamer-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstpbutils-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstbase-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstaudio-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Finished Dependency Resolution
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: liborc-0.4.so.0()(64bit)
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: libgstreamer-0.10.so.0()(64bit)
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: libgstbase-0.10.so.0()(64bit)
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: libgstaudio-0.10.so.0()(64bit)
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: libgstpbutils-0.10.so.0()(64bit)
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: libgstvideo-0.10.so.0()(64bit)
  
   You could try using --skip-broken to work around the problem
  
   You could try running: rpm -Va --nofiles --nodigest
  
  [ec2-user@ip-172-30-1-58 ~]$ 

  Supplying the suggested --skip-broken doesn’t help :

  [ec2-user@ip-172-30-1-58 ~]$ sudo yum install -y gstreamer-ffmpeg --skip-broken
  
  Loaded plugins: priorities, update-motd, upgrade-helper
  
  23 packages excluded due to repository priority protections
  
  Resolving Dependencies
  
  --> Running transaction check
  
  ---> Package gstreamer-ffmpeg.x86_64 0:0.10.13-15.el7.nux will be installed
  
  --> Processing Dependency: liborc-0.4.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstvideo-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstreamer-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstpbutils-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstbase-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstaudio-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  
  
  Packages skipped because of dependency problems:
  
      gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 from nux-dextop
  
  [ec2-user@ip-172-30-1-58 ~]$ 

  So how do I install gstreamer-ffmpeg ? Why aren’t the dependencies automatically being followed ?