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• fatal Error Issues - jhotovy's version of android-ffmpeg-x264 - github.com/jhotovy/android-ffmpeg.git

  3 août 2012, par user1545779

  The following is the output for issuing init-submodules.sh. I keep receiving this

  error:fatal error:
  
      Unable to checkout '15e02184e136e47ecff01bf56aca
  
      The49d8e2646fb4&#39; in submodule path &#39;Project/jni/ffmpeg&#39;<br />

  Has anyone run jhotovy's version of halfninja's code successfully so far ? Any help in resolving this issue will be greatly appreciated
  

  My screen output :

      gipsyblues@android-general:~/android-ffmpeg$ ./init-submodules.sh <br />
  
      ls: cannot access ./jni/ffmpeg/*: No such file or directory<br />
  
      Submodule &#39;ffmpeg&#39; (git://git.videolan.org/ffmpeg.git) registered for path   Project/jni     /ffmpeg&#39;<br />
  
      Submodule &#39;x264&#39; (git://git.videolan.org/x264.git) registered for path &#39;Project/jni    /x264&#39;<br />
  
      user.name=xxxxxxx <br />
  
      user.email=yyyyyyy <br />
  
      core.repositoryformatversion=0<br />
  
      core.filemode=true<br />
  
      core.bare=false<br />
  
      core.logallrefupdates=true<br />
  
      remote.origin.fetch=+refs/heads/*:refs/remotes/origin/*<br />
  
      remote.origin.url=git://github.com/jhotovy/android-ffmpeg.git
  
      branch.master.remote=origin<br />
  
      branch.master.merge=refs/heads/master<br />
  
      submodule.ffmpeg.url=git://git.videolan.org/ffmpeg.git<br />
  
      submodule.x264.url=git://git.videolan.org/x264.git<br />
  
      Initialized empty Git repository in /home/gipsyblues/android-ffmpeg/Project/jni/ffmpeg  /.git/<br />
  
      remote: Counting objects: 237417, done.<br />
  
      remote: Compressing objects: 100% (57251/57251), done.<br />
  
      remote: Total 237417 (delta 186957), reused 228690 (delta 179782)<br />
  
      Receiving objects: 100% (237417/237417), 59.89 MiB | 5.22 MiB/s, done.<br />
  
      Resolving deltas: 100% (186957/186957), done.<br />
  
      fatal: reference is not a tree: 15e02184e136e47ecff01bf56aca49d8e2646fb4<br />
  
      Unable to checkout &#39;15e02184e136e47ecff01bf56aca49d8e2646fb4&#39; in submodule path    &#39;Project/jni/ffmpeg&#39;<br />
  
     gipsyblues@android-general:~/android-ffmpeg$ <br />

  I have successfully run the original halfninja version which is also at githuib.com/halfninja/android-ffmpeg-x264.<br> I have searched all over the Internet and i am not finding any reference to this issue. Anyone had any success with that implementation

• Anomalie #2036 (Fermé) : nom des feuilles de style calculée

  1er juin 2011, par cedric -

  Les css calculées et insérées par #PRODUIRE reprennent maintenant leur nom d’origine dans le nom de la feuille statique générée. Pour les medias, ce n’est pas une propriété de la feuille, mais de son utilisation. Qui plus est, le compresseur regroupe toutes le feuilles en une et traite le cas du media (...)

• Converting transparent PNGs to WEBM with alpha : ffmpeg doesn't clear pixels from previous frames which are transparent in in next frames

  6 août 2021, par Majiick

  When I try to convert a bunch of PNGs with alpha in them, the conversion works but there's this strange behavior where the pixels from previous frames do not get cleared and show up in the next frame where the background should just be fully transparent. It looks exactly the same as if you're drawing frames on top of each other without clearing the whole canvas in-between.

  


  I'm speculating on what happens but I think given a frame N with a pixel RGBA (1, 0, 0, 1) and a frame N+1 with a pixel (0, 0, 0, 0), ffmped produces the second frame as (1, 0, 0, 1) when I want (0, 0, 0, 0).

  


  Any way to force ffmpeg to try and clear all the pixels from the last frame before encoding the new frame ?

  


  Command I use :

  


  ffmpeg -vb 20MB -i %04d.png output.webm

ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 5.2.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Input #0, image2, from 'mika_%04d.png':
  Duration: 00:00:20.00, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: png, rgba(pc), 1080x1920 [SAR 1:1 DAR 9:16], 25 fps, 25 tbr, 25 tbn, 25 tbc
[libvpx-vp9 @ 04ef83e0] v1.5.0
Output #0, webm, to 'output.webm':
  Metadata:
    encoder         : Lavf56.40.101
    Stream #0:0: Video: vp9 (libvpx-vp9), yuv444p, 1080x1920 [SAR 1:1 DAR 9:16], q=-1--1, 200 kb/s, 25 fps, 1k tbn, 25 tbc
    Metadata:
      encoder         : Lavc56.60.100 libvpx-vp9