Recherche avancée

Sur d’autres sites (10046)

• compile ffmpeg for android [PAID]

  2 juin 2018, par Rafael Lima

  I’m 100% sure this is not the place for that and many people will downvote it but i’ve already posted this request in specific foruns and still no answer

  I’m willing to pay for someone able to compile ffmpeg for android

  I’ve been developing an app using ffmpeg binaries provided by an user on github, on the final phase of development i discover those binaries are not able to do some things i need because they were compiled without some specific flags

  I spent unsucessfully the last 20 days following tutorials about compile ffmpeg for android

  the flags i need are

  --enable-libfreetype \
  
  --enable-libfontconfig \
  
  --enable-zlib \
  
  --enable-libmp3lame \
  
  --enable-libopus \
  
  --enable-libx264 \ or --enable-openh264 \
  
  --enable-static \
  
  --enable-ffmpeg \
  
  --enable-librtmp \
  
  --enable-pic \
  
  --disable-doc \
  
  --disable-shared 

  if you think you able to do it please contact me at my e-mail ragpl07@gmail.com

• v4l2 learning resources step by step [closed]

  5 août 2023, par Mark Watts

  I intend to learn how v4l2 works and how is a hw codec integrated to do decoding
What resources do i need and where to start ? i'm new to kernel space too

  


  

  1. Hardware board ? ( Raspberry pi or similar ?)

  


  2. Environment ( VMware ?)

  


  3. Example code with userspace Multimedia framework using v4l2 driver ( where can i see examples of this stuff that is already done ?)

  


  4. Documentation / turorials / videos

  


  


  Ive come across some videos from bootlin and the kernel documentation . I want to know how to approach it methodically.

  


• batch i need to encode hole folder files

  4 mai 2019, par jonedave

  I need one batch code for ffmpeg which can encode & zoom resolution of all videos inside folder to 110% & 125% of original using batch code.

  Here are some codes which I test not working :

  for %%a in ("*.*") do ffmpeg -i "%%a"  -vf scale=2*iw:-1, crop=iw/2:ih/2" "newfiles\%%~na.mp4"
  
  pause

  for %%a in ("*.*") do ffmpeg -i "%%a" -vf "zoompan=z='1+(1.4*in/300)':x='70*in/300':y='190*in/300':d=1"  "newfiles\%%~na.mp4"
  
  for %%a in ("*.*") do ffmpeg -i "%%a" -vf "zoompan=z='1+(1.4*in/300"  "newfiles\%%~na.mp4"
  
  pause

  error i getting

  C:\down\Compressed\DRIVER PACK FOR MOBILE PHONE\DRIVER PACK FOR MOBILE PHONE>ffm
  
  peg -i "avutil-ics-56.dll" -vf "zoompan=z='1+(1.4*in/300"  "newfiles\avutil-ics-
  
  56.mp4"
  
  ffmpeg version N-93461-g6e42021128 Copyright (c) 2000-2019 the FFmpeg developers
  
  
  
    built with gcc 8.2.1 (GCC) 20190212
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfi
  
  g --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libb
  
  luray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enab
  
  le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --e
  
  nable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable
  
  -libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 -
  
  -enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enab
  
  le-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --en
  
  able-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --en
  
  able-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --e
  
  nable-dxva2 --enable-avisynth --enable-libopenmpt
  
    libavutil      56. 26.100 / 56. 26.100
  
    libavcodec     58. 47.105 / 58. 47.105
  
    libavformat    58. 26.101 / 58. 26.101
  
    libavdevice    58.  7.100 / 58.  7.100
  
    libavfilter     7. 48.100 /  7. 48.100
  
    libswscale      5.  4.100 /  5.  4.100
  
    libswresample   3.  4.100 /  3.  4.100
  
    libpostproc    55.  4.100 / 55.  4.100
  
  avutil-ics-56.dll: Invalid data found when processing input
  
  
  
  C:\down\Compressed\DRIVER PACK FOR MOBILE PHONE\DRIVER PACK FOR MOBILE PHONE>ffm
  
  peg -i "ffmpeg.exe" -vf "zoompan=z='1+(1.4*in/300"  "newfiles\ffmpeg.mp4"
  
  ffmpeg version N-93461-g6e42021128 Copyright (c) 2000-2019 the FFmpeg developers
  
  
  
    built with gcc 8.2.1 (GCC) 20190212
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfi
  
  g --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libb
  
  luray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enab
  
  le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --e
  
  nable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable
  
  -libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 -
  
  -enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enab
  
  le-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --en
  
  able-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --en
  
  able-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --e
  
  nable-dxva2 --enable-avisynth --enable-libopenmpt
  
    libavutil      56. 26.100 / 56. 26.100
  
    libavcodec     58. 47.105 / 58. 47.105
  
    libavformat    58. 26.101 / 58. 26.101
  
    libavdevice    58.  7.100 / 58.  7.100
  
    libavfilter     7. 48.100 /  7. 48.100
  
    libswscale      5.  4.100 /  5.  4.100
  
    libswresample   3.  4.100 /  3.  4.100
  
    libpostproc    55.  4.100 / 55.  4.100
  
  ffmpeg.exe: Invalid data found when processing input