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• ffmpeg youtube live stream vb.net

  17 mai 2020, par Sharath Nandakumar

  i want to stream desktop to youtube live using ffmpeg. I am programming in visual basic 2019. i have downloaded copied ffmpeg to C folder from ffmpeg.org. the code i used was

  



  Public Class Form1
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles Me.Load
    Dim psi As ProcessStartInfo = New ProcessStartInfo("C:/ffmpeg.exe")
    Dim proc As Process = Process.Start(psi)
    psi.UseShellExecute = False
    psi.CreateNoWindow = True
    psi.Arguments = "ffmpeg -loglevel debug -threads:v 2 -threads:a 8 -filter_threads 2 -thread_queue_size 512  -f dshow -i video="desktop" -f dshow -i audio="speakers (2- Realtek High Definition Audio)" -pix_fmt yuv420p -c:v libx264 -qp:v 19 -profile:v high -rc:v cbr_ld_hq -level:v 4.2 -r:v 60 -g:v 120 -bf:v 3 -refs:v 16 -f flv rtmp://youtube_stream_url/stream_key"
    proc = Process.Start(psi)
End Sub


  



  End Class

  



  I am not getting any results. Please help me. Thanks in advance

  


• rdt : Use a separate variable to clarify the different value namespaces

  4 mars 2015, par Martin Storsjö

  rdt : Use a separate variable to clarify the different value namespaces
  The original flags variable contains rtpdec flags, while the
  
  rmflags variable contains RM flag bits which have a completely
  
  different definition.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] libavformat/rdt.c

• Probabilistic-Volumetric-3D-Reconstruction ubuntu ffmpeg [on hold]

  26 avril 2017, par 董学强

  I download the code from enter link description here.Then I mkdir build .cd build. cmake .. ererything goes well.
  But when i make i meet with this error as following :

  [ 34%] Built target vgui_test_drawpix_speed2
  
  [ 34%] Built target vgui_test_template_include
  
  [ 35%] Built target vidl
  
  [ 35%] Built target vidl_gui
  
  [ 35%] Built target vidl_gui_test_include
  
  [ 35%] Built target vidl_test_template_include
  
  [ 35%] Built target vidl_test_include
  
  [ 35%] Built target vidl_test_all
  
  [ 35%] Linking CXX executable ../../../bin/vidl_transcode_video
  
  ../../../lib/libvidl.a(vidl_ffmpeg_istream.cxx.o): In function `vidl_ffmpeg_istream::open(std::string const&)':
  
  vidl_ffmpeg_istream.cxx:(.text+0x3d5): undefined reference to `av_frame_alloc'
  
  ../../../lib/libvidl.a(vidl_ffmpeg_ostream.cxx.o): In function `vidl_ffmpeg_ostream::close()':
  
  vidl_ffmpeg_ostream.cxx:(.text+0x124f): undefined reference to `av_packet_unref'
  
  ../../../lib/libvidl.a(vidl_ffmpeg_ostream.cxx.o): In function `vidl_ffmpeg_ostream::write_frame(vil_smart_ptr const&)':
  
  vidl_ffmpeg_ostream.cxx:(.text+0x16f5): undefined reference to `av_frame_alloc'
  
  vidl_ffmpeg_ostream.cxx:(.text+0x1b3b): undefined reference to `av_packet_unref'
  
  collect2: error: ld returned 1 exit status
  
  make[2]: *** [bin/vidl_transcode_video] Error 1
  
  make[1]: *** [core/vidl/examples/CMakeFiles/vidl_transcode_video.dir/all] Error 2
  
  make: *** [all] Error 2

  Here are the code of vidl_ffmpeg_ostream.cxx and vidl_ffmpeg_istream.cxx：

    // This is core/vidl/vidl_ffmpeg_ostream.cxx
  
      #include "vidl_ffmpeg_ostream.h"
  
  
  
      #include <vidl></vidl>vidl_config.h>
  
  
  
      #if VIDL_HAS_FFMPEG
  
  
  
      // The ffmpeg API keeps changing, so we use different implementations
  
      // depending on which version of ffmpeg we have.
  
  
  
      extern "C" {
  
      // some versions of FFMPEG require this definition before including
  
      // the headers for C++ compatibility
  
      #define __STDC_CONSTANT_MACROS
  
      #if FFMPEG_IN_SEVERAL_DIRECTORIES
  
      #include <libavcodec></libavcodec>avcodec.h>
  
      #else
  
      #include <ffmpeg></ffmpeg>avcodec.h>
  
      #endif
  
      }
  
      #include "vidl_ffmpeg_convert.h"
  
  
  
      #if LIBAVCODEC_BUILD &lt; ((51&lt;&lt;16)+(49&lt;&lt;8)+0)  // ver 51.49.0
  
      # include "vidl_ffmpeg_ostream_v1.hxx"
  
      #elif LIBAVCODEC_BUILD &lt; ((52&lt;&lt;16)+(10&lt;&lt;8)+0)  // before ver 52.10.0
  
      # include "vidl_ffmpeg_ostream_v2.hxx"
  
      #elif LIBAVCODEC_BUILD &lt; ((53&lt;&lt;16)+(0&lt;&lt;8)+0)  // before ver 53.0.0
  
      # include "vidl_ffmpeg_ostream_v3.hxx"
  
      #elif LIBAVCODEC_BUILD &lt; ((53&lt;&lt;16)+(24&lt;&lt;8)+0)  // before ver 53.24.0
  
      # include "vidl_ffmpeg_ostream_v4.hxx"
  
      #elif LIBAVCODEC_BUILD &lt; ((54&lt;&lt;16)+(23&lt;&lt;8)+100)  // before ver 54.23.100
  
      # include "vidl_ffmpeg_ostream_v0.9.hxx"
  
      #elif LIBAVCODEC_BUILD &lt; ((56&lt;&lt;16)+(0&lt;&lt;8)+100)  // before ver 56.0.100
  
      # include "vidl_ffmpeg_ostream_v0.11.hxx"
  
      #else
  
      # include "vidl_ffmpeg_ostream_v56.hxx"
  
      #endif
  
  
  
      #else // VIDL_HAS_FFMPEG
  
  
  
      # include "vidl_ffmpeg_ostream_stub.hxx"
  
  
  
      #endif // VIDL_HAS_FFMPEG

  emphasized text

  // This is core/vidl/vidl_ffmpeg_istream.cxx
  
  #include "vidl_ffmpeg_istream.h"
  
  
  
  #include <vidl></vidl>vidl_config.h>
  
  
  
  #if VIDL_HAS_FFMPEG
  
  
  
  #include "vidl_ffmpeg_ostream.h"
  
  
  
  // The ffmpeg API keeps changing, so we use different implementations
  
  // depending on which version of ffmpeg we have.
  
  
  
  extern "C" {
  
  // some versions of FFMPEG require this definition before including
  
  // the headers for C++ compatibility
  
  #define __STDC_CONSTANT_MACROS
  
  #if FFMPEG_IN_SEVERAL_DIRECTORIES
  
  #include <libavformat></libavformat>avformat.h>
  
  #else
  
  #include <ffmpeg></ffmpeg>avformat.h>
  
  #endif
  
  }
  
  
  
  #if LIBAVFORMAT_BUILD &lt; ((52&lt;&lt;16)+(2&lt;&lt;8)+0)  // before ver 52.2.0
  
  # include "vidl_ffmpeg_istream_v1.hxx"
  
  #elif LIBAVFORMAT_BUILD &lt; ((53&lt;&lt;16)+(0&lt;&lt;8)+0)  // before ver 53.0.0
  
  # include "vidl_ffmpeg_istream_v2.hxx"
  
  #elif LIBAVFORMAT_BUILD &lt; ((53&lt;&lt;16)+(24&lt;&lt;8)+0)  // before ver 53.24.0
  
  # include "vidl_ffmpeg_istream_v3.hxx"
  
  #elif LIBAVFORMAT_VERSION_MAJOR &lt; 56            // before avformat ver 57.0
  
  # include "vidl_ffmpeg_istream_v3.hxx"
  
  #else
  
  # include "vidl_ffmpeg_istream_v56.hxx"
  
  #endif
  
  
  
  #else // VIDL_HAS_FFMPEG
  
  
  
  # include "vidl_ffmpeg_istream_stub.hxx"
  
  
  
  #endif // VIDL_HAS_FFMPEG

  I don’t know what’s wrong I have got .What i need to do ？Anyone can help me ?