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• Unable to build solution in Visual Studio 2019 : The BaseOutputPath/OutputPath property is not set for project

  23 juillet 2022, par mhadi

  In an effort to integrate FFmpeg with Unity, I have been trying to build a solution file in Visual Studio 2019. However, I am currently unable to resolve the following error when I try to build in Visual Studio :

  


  


  The BaseOutputPath/OutputPath property is not set for project
'FFmpegUnityInterop.vcxproj'. Please check to make sure that you have
specified a valid combination of Configuration and Platform for this
project. Configuration='Release' Platform='x64'. This error may
also appear if some other project is trying to follow a
project-to-project reference to this project, this project has been
unloaded or is not included in the solution, and the referencing
project does not build using the same or an equivalent Configuration
or Platform.

  


  


  I have tried a number of solutions, including :

  


  

  1. Manually adding the OutputPath in 'FFmpegUnityInterop.vcxproj'
<outputpath>bin/Build/</outputpath>.

  


  2. In the FFmpegUnityInterop.vcxproj file, moving the ProjectProperty with my preferred configuration and platform combination to the very top of the list of ProjectProperties (there are 8 of them).

  


  3. Building with different configuration and platforms.

  


  4. Trying to build from VS Dev Command prompt using the following command :
MSbuild.exe "FFmpegUnityInterop.sln" /p:Configuration=Release /p:Platform="x64", as well as from the Visual Studio IDE.

  


  5. Tried setting the OutputPath in the command line command
(>MSbuild.exe FFmpegUnityInterop.sln /p:Configuration=Release /p:Platform="AnyCPU" /p:OutputPath = bin\Debug), only to have
MSbuild throw error MSB1008 (MSBUILD : error MSB1008 : Only one
project can be specified.)

  


  6. Setting the configuration and platform manually in the Configuration Manager GUI in
Visual Studio.

  


  


  I may have missed an attempted solution or two above, but I've tried most of the suggestions I found online, only to get the error pasted above. Part of me suspects that my compilation of FFmpeg libraries didn't execute fully, but I unfortunately do not have enough experience to verify that. Any suggestions to resolve this would be much appreciated.

  


  PS. The project was developed privately by a private entity that is currently unreachable

  


• Strange error with ffmpeg and unoconv in python script

  27 mai 2015, par Avery Ripoll Crocker

  I am creating a python script that can be used by other people to convert files. However when I use this script I keep getting a weird error when I run the subprocess for unoconv, this error is :

  Traceback (most recent call last):
  
    File "conversion.py", line 15, in <module>
  
      check_call(["unoconv", "-f", Fileextension, filename])
  
    File "/usr/lib/python2.7/subprocess.py", line 540, in check_call
  
      raise CalledProcessError(retcode, cmd)
  
  subprocess.CalledProcessError: Command '['unoconv', '-f', '.pdf', 'journal.doc']' returned non-zero exit status 1
  
  </module>

  I have looked through various resources for this, but the one answer I have been receiving is that I must have set up the unoconv line incorrectly. I have checked several times that the code is correct, and it is. The other peculiar thing is that my code for ffmpeg works. Does anybody have an idea as to why this happens.

  Here is my program :

  print "If at any point you wish to quit the program hit Ctrl + C"
  
  
  
  filetype = raw_input("What kind of file would you like to convert? Audio, Image, Video or Document: ")
  
  
  
  if filetype == "Document":
  
     path = raw_input("Please drag and drop the directory in which the file is stored into the terminal:")
  
     os.chdir(path[1:-2])
  
     filename = raw_input("Please enter the name of the file you would like to convert, including the file-type. e.g. test.txt, however please do make sure that the file-name does not have any spaces:")
  
     Fileextension = raw_input("What filetype would you like the program to convert your file to. E.g. .txt: ")
  
     from subprocess import check_call
  
     check_call(["unoconv", "-f", Fileextension, filename])
  
  
  
  elif filetype == "Audio":
  
     path = raw_input("Please drag and drop the directory in which the file is stored into the terminal:")
  
     os.chdir(path[1:-2])
  
     filename = raw_input("Please enter the name of the file you would like to convert, including the file-type. e.g. test.txt, however please do make sure that the file-name does not have any spaces:")
  
     Fileextension = raw_input("What filetype would you like the program to convert your file to. E.g. .mp3: ")
  
     body, ext = os.path.splitext("filename")
  
     from subprocess import check_call
  
     check_call(["ffmpeg" ,"-i", filename, body + Fileextension])
  
  
  
  elif filetype == "Video":
  
     path = raw_input("Please drag and drop the directory in which the file is stored into the terminal:")
  
     os.chdir(path[1:-2])
  
     filename = raw_input("Please enter the name of the file you would like to convert, including the file-type. e.g. test.txt, however please do make sure that the file-name does not have any spaces:")
  
     Fileextension = raw_input("What filetype would you like the program to convert your file to. E.g. .mp4: ")
  
     body, ext = os.path.splitext("filename")
  
     from subprocess import check_call
  
     check_call(["ffmpeg" ,"-i", filename, body + Fileextension])
  
  
  
  elif filetype == "Image":
  
     path = raw_input("Please drag and drop the directory in which the file is stored into the terminal:")
  
     os.chdir(path[1:-2])
  
     filename = raw_input("Please enter the name of the file you would like to convert, including the file-type. e.g. test.txt, however please do make sure that the file-name does not have any spaces:")
  
     Fileextension = raw_input("What filetype would you like the program to convert your file to. E.g. .Jpeg: ")
  
     body, ext = os.path.splitext("filename")
  
     from subprocess import check_call    
  
     check_call(["ffmpeg" ,"-i", filename, body + Fileextension])

• ffmpeg fifo recover_any_error not recovering

  11 août 2020, par martyn Gilbert

  In ffmpeg documentation here (https://ffmpeg.org/ffmpeg-formats.html) it is stated that the recover_any_error fifo parameter can be set to 1 (true), recovery will be attempted regardless of type of the error causing the failure. In case of certain (usually permanent) errors the recovery is not attempted even when attempt_recovery is set to 1.

  


  I am using fifo (combined with tee for local copy) to send SRT stream but I am seeing occasions where the recovery attempts stop (one one occasion after just 1 attempt) I am curious what are the "usually permanent" cases are that would prevent the recovery attempt ?