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• Forward youtube-dl output to ffmpeg with hardware-accelerated encoding [closed]

  16 mars 2021, par Yehor

  I'm trying to download some videos from youtube and simultaneously forward those to ffmpeg for hardware decoding to h265 (just for purpose of seeing how it works).

  


  My command, that works, but uses (as I understand) software encoding :

  


  youtube-dl -o "./%(playlist)s/%(title)s.%(ext)s" --merge-output-format mkv --postprocessor-args "-c:v libx265 -c:a opus -strict experimental" "target_url"


  


  When I specify the hardware acceleration, I receive the error "Invalid argument". The command is :

  


  youtube-dl -o "./%(playlist)s/%(title)s.%(ext)s" --merge-output-format mkv --postprocessor-args "-hwaccel cuda -c:v hevc_nvenc -c:a opus -strict experimental" "target_url"


  


  What I've done wrong ?

  


  System info :

  


  

  • OS : Windows 10 x64

  


  • GPU : Nvidia GeForce 960M (installed the latest driver and CUDA) and should be supported by CUDA

  


  • latest youtube-dl and ffmpeg build

  


  


  The ffmpeg -encoders output contains 265 codecs, so they also should be supported :

  


  V..... libx265              libx265 H.265 / HEVC (codec hevc)
V..... nvenc_hevc           NVIDIA NVENC hevc encoder (codec hevc)
V..... hevc_amf             AMD AMF HEVC encoder (codec hevc)
V..... hevc_nvenc           NVIDIA NVENC hevc encoder (codec hevc)
V..... hevc_qsv             HEVC (Intel Quick Sync Video acceleration) (codec hevc)


  


• ERROR : libfaac not found while compiling FFMPEG library

  16 mars 2016, par SaidTagnit

  I was trying to compile FFMPEG library under ubuntu for android with including all possible codecs.
  i followed this tutorial http://www.roman10.net/2013/08/18/how-to-build-ffmpeg-with-ndk-r9/.
  but when i execute ./build_android.sh it gives me this Error :

  root@AK-74 :/home/rango/Desktop/android-ndk-r10e/sources/ffmpeg-3.0# ./build_android.sh
  ERROR : libfaac not found

  If you think configure made a mistake, make sure you are using the latest
  version from Git. If the latest version fails, report the problem to the
  ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
  Include the log file "config.log" produced by configure as this will help
  solve the problem.

  Here is my build_android.sh content :

  #!/bin/bash
  
  NDK=/home/rango/Desktop/android-ndk-r10e
  
  SYSROOT=$NDK/platforms/android-19/arch-arm/
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86
  
  
  
  function build_one
  
  {
  
  ./configure \
  
      --prefix=$PREFIX \
  
      --enable-shared \
  
      --disable-static \
  
      --disable-doc \
  
      --disable-ffmpeg \
  
      --disable-ffplay \
  
      --disable-ffprobe \
  
      --disable-ffserver \
  
      --disable-avdevice \
  
      --disable-doc \
  
      --disable-symver \
  
      --enable-gpl \
  
      --enable-version3 \
  
      --enable-nonfree \
  
      --enable-shared \
  
      --enable-libopencore-amrnb \
  
      --enable-libopencore-amrwb \
  
      --enable-libfaac \
  
      --enable-libgsm \
  
      --enable-libmp3lame \
  
      --enable-libtheora \
  
      --enable-libvorbis \
  
      --enable-libx264 \
  
      --enable-libxvid \
  
      --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
  
      --target-os=linux \
  
      --arch=arm \
  
      --enable-cross-compile \
  
      --sysroot=$SYSROOT \
  
      --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
  
      --extra-ldflags="$ADDI_LDFLAGS" \
  
      $ADDITIONAL_CONFIGURE_FLAG
  
  make clean
  
  make -j4
  
  make install
  
  }
  
  
  
  CPU=arm
  
  PREFIX=$(pwd)/android/$CPU
  
  ADDI_CFLAGS="-marm"
  
  
  
  build_one

• ERROR : libfaac not found while compiling FFMPEG library

  10 août 2020, par SaidTagnit

  I was trying to compile FFMPEG library under ubuntu for android with including all possible codecs.
i followed this tutorial http://www.roman10.net/2013/08/18/how-to-build-ffmpeg-with-ndk-r9/.
but when i execute ./build_android.sh it gives me this Error :

  



  


  root@AK-74 :/home/rango/Desktop/android-ndk-r10e/sources/ffmpeg-3.0# ./build_android.sh 
 ERROR : libfaac not found

  
 


  If you think configure made a mistake, make sure you are using the latest
 version from Git. If the latest version fails, report the problem to the
 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 Include the log file "config.log" produced by configure as this will help
 solve the problem.

  


  



  Here is my build_android.sh content :

  



  #!/bin/bash
NDK=/home/rango/Desktop/android-ndk-r10e
SYSROOT=$NDK/platforms/android-19/arch-arm/
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86

function build_one
{
./configure \
    --prefix=$PREFIX \
    --enable-shared \
    --disable-static \
    --disable-doc \
    --disable-ffmpeg \
    --disable-ffplay \
    --disable-ffprobe \
    --disable-ffserver \
    --disable-avdevice \
    --disable-doc \
    --disable-symver \
    --enable-gpl \
    --enable-version3 \
    --enable-nonfree \
    --enable-shared \
    --enable-libopencore-amrnb \
    --enable-libopencore-amrwb \
    --enable-libfaac \
    --enable-libgsm \
    --enable-libmp3lame \
    --enable-libtheora \
    --enable-libvorbis \
    --enable-libx264 \
    --enable-libxvid \
    --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
    --target-os=linux \
    --arch=arm \
    --enable-cross-compile \
    --sysroot=$SYSROOT \
    --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
    --extra-ldflags="$ADDI_LDFLAGS" \
    $ADDITIONAL_CONFIGURE_FLAG
make clean
make -j4
make install
}

CPU=arm
PREFIX=$(pwd)/android/$CPU
ADDI_CFLAGS="-marm"

build_one