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The --keep-open option causes mpv not to close the current file. Instead, it will pause, and allow the user to seek around. When seeking beyond the end of the file, mpv does a precise seek back to the previous last known position that produced video output. In some corner cases, mpv might not be able to produce video output at all, despite having created a VO. (Possibly when only 1 frame could be decoded, but the video filter chain queues frames. Then a VO would be created, without sending an actual video frame to the VO.) In these cases, the VO window will not redraw, not even OSD. Based on a patch by coax [1]. [1] http://devel.mplayer2.org/ticket/210#comment:4
Compiling with full features requires development files for several external libraries. Below is a list of some important requirements. For more information see the output of './configure --help' for a list of options, or look at the list of enabled and disabled features printed after running './configure'. If you think you have support for some feature installed but configure fails to detect it, the file config.log may contain information about the reasons for the failure. Libraries specific to particular video output methods (you'll want at least one of VDPAU, GL or Xv): - libvdpau (for VDPAU output, best choice for NVIDIA cards) - libGL (OpenGL output) - libXv (XVideo output) general: - libasound (ALSA audio output) - various general X development libraries - libfreetype (for libass) - libfontconfig (for libass) - libass - FFmpeg libraries (libavutil libavcodec libavformat libswscale libpostproc) Most of the above libraries are available in suitable versions on normal Linux distributions. However FFmpeg is an exception (distro versions may be too old to work at all or work well). For that reason you may want to use the separately available build wrapper that first compiles FFmpeg libraries and libass, and then compiles the player statically linked against those.