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• Centos7 Server, Masrer Playlist can't create CODECS when use ffmpeg with libx265 (h.265)

  8 juillet 2020, par Duy Đức Nguyễn Phạm

  I use ffmpeg to stream from a link, when I use libx264 it run very good but when I use libx265, file master playlist can't create CODECS

  


  #ffmpeg

ffmpeg version N-98423-g584f396 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-39)
  configuration: --prefix=/./usr/local/ffmpeg --bindir=/./usr/local/bin/ --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --extra-libs=-lpthread --extra-libs=-lm --bindir=/root/bin --enable-gpl --enable-libfdk_aac --enable-libfreetype --enable-libopus --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
  libavutil      56. 55.100 / 56. 55.100
  libavcodec     58. 94.100 / 58. 94.100
  libavformat    58. 48.100 / 58. 48.100
  libavdevice    58. 11.101 / 58. 11.101
  libavfilter     7. 86.100 /  7. 86.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100


  


  I check output video by command

  


  #ffprobe -v error -select_streams v:0 -show_entries stream=codec_name   -of default=noprint_wrappers=1:nokey=1 v0_s.m3u8


  


  Then the screen show

  


  hevc
hevc


  


  And this is master playlist comparison example when I use x265 (v0) and x264 (v1)

  


  #EXTM3U
#EXT-X-VERSION:7
#EXT-X-STREAM-INF:BANDWIDTH=401500,RESOLUTION=640x480
v0/prog_index.m3u8

#EXT-X-STREAM-INF:BANDWIDTH=2200000,RESOLUTION=1280x720,CODECS="avc1.42c01f"
v1/prog_index.m3u8


  


  Sorry about my English.
Can you help me ? Thank you !

  


• Matplotlib can not save animation

  1er avril 2020, par Justin Furuness

  I have a matplotlib animation and it will not save. If I do not save it, it runs totally fine and without error. When I try to save it errors with a message that is not helpful. I have googled this error and checked everything, but I cannot seem to find an answer to this problem. I have installed ffmpeg. Am I doing something wrong that is obvious ? I am running on ubuntu 19.10 with matplotlib 3.2.1 if that matters.

  



  The code to save the animation is below :

  



      def run_animation(self, total_rounds):
        anim = animation.FuncAnimation(self.fig, self.animate,
                                       init_func=self.init,
                                       frames=total_rounds * 100,
                                       interval=40,
                                       blit=True)
#        Writer = animation.writers['ffmpeg']
#        writer = Writer(fps=15, metadata=dict(artist='Me'), bitrate=1800)
        anim.save('animation.mp4')


  



  The error traceback :

  



  2020-04-01 02:20:58,279-INFO: MovieWriter._run: running command: ffmpeg -f rawvideo -vcodec rawvideo -s 1200x500 -pix_fmt rgba -r 25.0 -loglevel error -i pipe: -vcodec h264 -pix_fmt yuv420p -y animation.mp4
Traceback (most recent call last):
  File "/home/anon/.local/lib/python3.7/site-packages/matplotlib/backend_bases.py", line 2785, in _wait_cursor_for_draw_cm
    self.set_cursor(cursors.WAIT)
  File "/home/anon/.local/lib/python3.7/site-packages/matplotlib/backends/backend_gtk3.py", line 468, in set_cursor
    self.canvas.get_property("window").set_cursor(cursord[cursor])
AttributeError: 'NoneType' object has no attribute 'set_cursor'


  



  Thanks a million for your help

  


• ffplay -noborder option missing argument

  10 janvier 2021, par Tomás Arturo Herrera Castro

  If I do :

  


  ffplay -i vid.mp4


  


  ffplay works fine, however if I try the borderless option :

  


  ffplay -noborder -i vid.mp4

Failed to set value '-i' for option 'noborder': Option not found


  


  Trying the -noborder option at the end of the command :

  


  ffplay -i vid.mp4 -noborder

Missing argument for option 'noborder'


  


  Any clue on the argument -noborder is waiting for or why isn't this working ?

  


  This is the ffplay version I am using :

  


  ffplay version 2.8.17-0ubuntu0.1 Copyright (c) 2003-2020 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609
  configuration: --prefix=/usr --extra-version=0ubuntu0.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv