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• d3d11va : Check WINAPI_FAMILY instead of HAVE_LOADLIBRARY

  4 juillet 2017, par Martin Storsjö

  d3d11va : Check WINAPI_FAMILY instead of HAVE_LOADLIBRARY
  If using the winstore compat library, a fallback LoadLibrary
  
  function does exist, that only calls LoadPackagedLibrary though
  
  (which doesn't work for dynamically loading d3d11 DLLs).
  Therefore explicitly check the targeted API family instead.
  Make this check a reusable HAVE_* component which other parts
  
  of the libraries can check when necessary as well.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  Merged from Libav commit 4d330da006fe48178.
  

  • [DH] configure
  • [DH] libavutil/hwcontext_d3d11va.c

• Map streams in ffmpeg based on title (to remove language variant)

  16 octobre 2024, par MappaM

  I have a few video files with English audio track and French audio track, because the family wants French and I prefer VO. With ffmpeg I can easily filter all tracks to keep eng and fre, the problem is there are multiple french dialects, one of them being Candian (VFQ).

  


  Therefore, with the following input streams :

  


    Stream #0:1(fre): Audio: eac3, 48000 Hz, 5.1(side), fltp, 768 kb/s (default)
    Metadata:
      title           : E-AC3 VFF
  Stream #0:2(fre): Subtitle: subrip (default) (forced)
    Metadata:
      title           : FORCED VFF
  Stream #0:3(fre): Audio: ac3, 48000 Hz, 5.1(side), fltp, 384 kb/s
    Metadata:
      title           : AC3 VFQ
  Stream #0:4(fre): Subtitle: subrip
    Metadata:
      title           : FORCED VFQ
  Stream #0:5(eng): Audio: eac3, 48000 Hz, 5.1(side), fltp, 768 kb/s
    Metadata:
      title           : E-AC3 VO


  


  The command -map 0:v: -map 0:m:language:eng -map 0:m:language:fre does not filter out anything, and I keep both audio which is wasteful. The only metadata that could be used to filter seems to be the title.

  


• Can not found valid font in ffmpeg android

  8 décembre 2022, par HaryD5

  I want to add text over video using ffmpeg. But it gives me error of Cannot find a valid font.

  


  I used this command

  


  ffmpeg -y -ss 0 -i /data/user/0/com.example.videoeditor/cache/LMS_1670500883503.mp4 -filter_complex drawtext="fontfile=/usr/share/fonts/truetype/freefont/FreeSans.ttf:text='Stack Overflow':fontcolor=white:fontsize=24:box=1:boxcolor=black@0.5:boxborderw=5:x=(w-text_w)/2:y=(h-text_h)/2" -t 7 -movflags faststart -strict experimental -vcodec mpeg4 -b:v 2097152 -b:a 48000 -ac 2 -ar 22050 /storage/emulated/0/Download/LMS_1670500883824.mp4


  


  but it gives me error

  


   Cannot find a valid font for the family Sans
Error initializing filter 'drawtext'
with args 'fontfile=/usr/share/fonts/truetype/freefont/FreeSans.ttf:text=Stack Overflow:fontcolor=white:fontsize=24:box=1:boxcolor=black@0.5:boxborderw=5:x=(w-text_w)/2:y=(h-text_h)/2'


  


  I'm using ubuntu OS.
And also is there any way to get font file from android studio assets folder ?

  


  Thanks in Advance !!