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• Dartium build on windows with ffmpeg

  23 mars 2017, par AndrewL

  I am trying to build Dartium with proprietary codecs. I am running into a problem with "_ff_w64_guid_data". I did a google search, and the most it comes up with is that it is a bug with old versions of chromium, and it was fixed in later releases, unfortunately it doesn’t go into how to actually fix it, as I am stuck with this version of chromium for Dartium.

  I ran "set GYP_DEGINES=""proprietary_codecs=1 ffmpeg_branding=Chrome" before the standard instructions on https://github.com/dart-lang/sdk/wiki/Building-Dartium

  Here is a copy of the build info.

  C:\dart\dartium\src>.\dart\tools\dartium\build.py --mode=Release
  
  Running:  ninja -j4 -C out\Release content_shell chrome blink_tests
  
  ninja: Entering directory `out\Release'
  
  [16/1415] LINK_EMBED delegate_execute.exe
  
  uuid.lib(objidl_i.obj) : MSIL .netmodule or module compiled with /GL found; restarting link with /LTCG; add /LTCG to the link command line to improve linker performance
  
  Generating code
  
  Finished generating code
  
  [32/1415] LINK_EMBED(DLL) chrome_child.dll
  
  FAILED: chrome_child.dll chrome_child.dll.lib chrome_child.dll.pdb
  
  C:\src\depot_tools\python276_bin\python.exe gyp-win-tool link-with-manifests environment.x86 True chrome_child.dll "C:\src\depot_tools\python276_bin\python.exe gyp-win-tool link-wrapper environment.x86 False link.exe /nologo /IMPLIB:chrome_child.dll.lib /DLL /OUT:chrome_child.dll @chrome_child.dll.rsp" 2 mt.exe rc.exe "obj\chrome\chrome_child_dll.chrome_child.dll.intermediate.manifest" obj\chrome\chrome_child_dll.chrome_child.dll.generated.manifest
  
  uuid.lib(cguid_i.obj) : MSIL .netmodule or module compiled with /GL found; restarting link with /LTCG; add /LTCG to the link command line to improve linker performance
  
  ffmpeg.lib(ffmpeg.wavdec.obj) : error LNK2001: unresolved external symbol _ff_w64_guid_data
  
  chrome_child.dll : fatal error LNK1120: 1 unresolved externals
  
  Traceback (most recent call last):
  
    File "gyp-win-tool", line 313, in <module>
  
      sys.exit(main(sys.argv[1:]))
  
    File "gyp-win-tool", line 29, in main
  
      exit_code = executor.Dispatch(args)
  
    File "gyp-win-tool", line 71, in Dispatch
  
      return getattr(self, method)(*args[1:])
  
    File "gyp-win-tool", line 169, in ExecLinkWithManifests
  
      subprocess.check_call(ldcmd + add_to_ld)
  
    File "C:\src\depot_tools\python276_bin\lib\subprocess.py", line 540, in check_call
  
      raise CalledProcessError(retcode, cmd)
  
  subprocess.CalledProcessError: Command 'C:\src\depot_tools\python276_bin\python.exe gyp-win-tool link-wrapper environment.x86 False link.exe /nologo /IMPLIB:chrome_child.dll.lib /DLL /OUT:chrome_child.dll @chrome_child.dll.rsp chrome_child.dll.manifest.res' returned non-zero exit status 1120
  
  [34/1415] LINK_EMBED blink_heap_unittests.exe
  
  uuid.lib(cguid_i.obj) : MSIL .netmodule or module compiled with /GL found; restarting link with /LTCG; add /LTCG to the link command line to improve linker performance
  
  Generating code
  
  Finished generating code
  
  [35/1415] LINK_EMBED webkit_unit_tests.exe
  
  uuid.lib(cguid_i.obj) : MSIL .netmodule or module compiled with /GL found; restarting link with /LTCG; add /LTCG to the link command line to improve linker performance
  
  Generating code
  
  Finished generating code
  
  ninja: build stopped: subcommand failed.
  
  Traceback (most recent call last):
  
    File "C:\dart\dartium\src\dart\tools\dartium\build.py", line 56, in <module>
  
      main()
  
    File "C:\dart\dartium\src\dart\tools\dartium\build.py", line 53, in main
  
      + targets)
  
    File "C:\dart\dartium\src\dart\tools\dartium\utils.py", line 112, in runCommand
  
      raise Exception('Failed to run command. return code=%s' % p.returncode)
  
  Exception: Failed to run command. return code=1
  
  </module></module>

• How to test audio mp3 files [closed]

  8 juillet, par صلي علي محمد - Atef Farouk

  I am wondering if there is any offline tool that can test audio files and detect positions that have problems like ( long silent, missing codecs, high echo, ...).

  


  I expect lame or ffmpeg can do so. or may be python script.

  


• ffmpeg : how to add pixellate effect ?

  29 avril 2012, par user300675

  I need to blur some uploaded videos and encoded them.
  Infact by blur, it means pixellate them so "big squares" appear and blur it.

  Any idea on how I can do that ? (ffmpeg would be great, by any command line windows tool should be ok)

  Thanks.