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• Saving highest quality video from video-capture card

  23 décembre 2013, par DusteD

  I have a machine with 2x3 3ghz dual-core xeon and 4x10krpm scsi 320 disks in raid0.
  The capture card is an osprey 560 64 bit pci card.
  Operating system is currently Windows Server 2003.

  The video-stream that I can open with VLC using direct show is rather nice quality.
  However, trying to save this video-stream without loss of quality has proven quite difficult,
  using the h264 codec I am able to achieve a satisfying quality, however, all 4 cores jump to 100% load after a few second and then it start dropping frames, the machine is not powerful enough for realtime encoding. I've not been able to achieve satisfying mpeg1 or 4 quality, no matter which bitrate I set..

  Thing is, the disks in this machine are pretty fast even by todays standard, and they are bored.. I don't care about disk-usage, I want quality.
  I have searched in vain for a way to pump that beautiful videostream that I see in VLC onto the disk for later encoding, I reckon the disks would be fast enough, or maybe something which would apply a light compression, enough that the disks can keep up, but not so much as to loose visible quality.

  I have tried FFMPEG as it seems capable of streaming a yuv4 stream down to the disk, but ofcause FFMPEG is unable to open the dshow device ( same error as this guy Ffmpeg streaming from capturing device Osprey 450e fails )

  Please recommend a capable and (preferably) software which can do this.

• 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


  


• Invalid data found when processing input from rtsp stream

  5 septembre 2019, par Jeremi Sharkboy

  im trying to playe rtsp stream with ffplay by this command :

  ffplay -i rtsp://HOST:1235/qc/Ks3Al3nVHPOt5F -fflags nobuffer -flags low_delay -an -framedrop

  or

  ffplay -i rtsp://HOST:1235/qc/Ks3Al3nVHPOt5F

  But i got an error

  C:\Users\Administrator\Desktop\QuadroCam\ffmpeg>ffplay rtsp://HOST:1235/qc/
  
  Ks3Al3nVHPOt5F
  
  ffplay version 4.1 Copyright (c) 2003-2018 the FFmpeg developers
  
    built with gcc 8.2.1 (GCC) 20181017
  
    configuration: --disable-static --enable-shared --enable-gpl --enable-version3
  
   --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libas
  
  s --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopenco
  
  re-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enab
  
  le-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libt
  
  wolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --e
  
  nable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --en
  
  able-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable
  
  -libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --
  
  enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --e
  
  nable-nvdec --enable-dxva2 --enable-avisynth
  
    libavutil      56. 22.100 / 56. 22.100
  
    libavcodec     58. 35.100 / 58. 35.100
  
    libavformat    58. 20.100 / 58. 20.100
  
    libavdevice    58.  5.100 / 58.  5.100
  
    libavfilter     7. 40.101 /  7. 40.101
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
    libpostproc    55.  3.100 / 55.  3.100
  
  rtsp://HOST:1235/qc/Ks3Al3nVHPOt5F: Invalid data found when processing inpu
  
  t
  
      nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0

  Maybe need some extra arg for this command or something. Any help please ?