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• How do I set a relative path for an .SO file ?

  1er juillet 2015, par Eran Boudjnah

  This is my error :

  06-29 16:52:37.729 24144-24144/com.my.app E/AndroidRuntime﹕ FATAL
  EXCEPTION : main
  Process : com.my.app, PID : 24144
  java.lang.UnsatisfiedLinkError : dlopen failed : could not load library "build/obj/local/armeabi/libavformat.so" needed by
  "libFFmpegWrapper.so" ; caused by library
  "build/obj/local/armeabi/libavformat.so" not found

  build/obj/local/armeabi/libavformat.so looks wrong to me. The code worked with an earlier build of ffmpeg - so I suspect it’s something to do with the way I build ffmpeg.

  The libavformat.so file is in the APK where I’d expect it to be.

  This is my build script for ffmpeg :

  #!/bin/bash
  
  
  
  NDK=/Users/eran/Downloads/android-ndk-r10e
  
  PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64
  
  PLATFORM=$NDK/platforms/android-12/arch-arm
  
  PREFIX=/usr/local
  
  
  
  function build_one
  
  {
  
    ./configure --target-os=android --prefix=$PREFIX \
  
    --pkg-config=./fake-pkg-config \
  
    --enable-cross-compile \
  
    --cpu=armv7-a \
  
    --enable-shared \
  
    --disable-static \
  
    --disable-asm \
  
    --arch=arm \
  
    --cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
  
    --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
  
    --disable-stripping \
  
    --nm=$PREBUILT/bin/arm-linux-androideabi-nm \
  
    --sysroot=$PLATFORM \
  
    --disable-nonfree \
  
    --disable-version3 \
  
    --disable-everything \
  
    --enable-gpl \
  
    --disable-doc \
  
    --enable-avresample \
  
    --disable-demuxer=rtsp \
  
    --disable-muxer=rtsp \
  
    --disable-ffplay \
  
    --disable-ffserver \
  
    --enable-ffmpeg \
  
    --disable-ffprobe \
  
    --enable-libx264 \
  
    --enable-encoder=libx264 \
  
    --enable-decoder=h264 \
  
    --disable-protocol=rtp \
  
    --enable-hwaccels \
  
    --enable-zlib \
  
    --disable-devices \
  
    --disable-avdevice \
  
    --extra-cflags="-I/usr/local/include -fPIC -DANDROID -Wno-deprecated -mfloat-abi=softfp -mfpu=neon -march=armv7-a" \
  
    --extra-ldflags="-L/usr/local/lib -Wl,--fix-cortex-a8" \
  
    --extra-cxxflags='-Wno-multichar -fno-exceptions -fno-rtti'
  
    make -j4 install
  
  }
  
  
  
  build_one

• The HLS segment filename file path not incrementing

  30 mai 2023, par Rakesh L

  const ffmpegProcess = spawn(ffmpeg [
'-y','-i','/home/Documents/videotrans/video-transcoder/api/videoFiles/input/sample2.mp4',
'-s:v','1280x720',
'-b:v','2000000',
'-aspect','16:9',
'-b:a','64000',
'-r', '24',
'-s:v','854x480',
'-b:v','1000000',
'-aspect','16:9',
'-b:a', '112000',
'-r', '24',
'-s:v','640x360',
'-b:v','7000000',
'-aspect','16:9',
'-b:a','80000',
'-r', '24',
'-s:v','420x420',
'-b:v','600000',
'-aspect','16:9',
'-b:a','64000',
'-r', '24',
'-sc_threshold', '0',
'-map','0:0',
'-map','0:1',
'-map','0:0',
'-map','0:1',
'-map','0:0',
'-map','0:1',
'-map','0:0',
'-map','0:1',
'-ac','2',
'-ar','44100',
'-preset','slow',
'-var_stream_map','v:0,a:0 v:1,a:1 v:2,a:2 v:3,a:3',
'-f','hls',
'-hls_list_size','0',
'-master_pl_name','master.m3u8',
'-hls_segment_filename','/home/Documents/videotrans/video-transcoder/api/videoFiles/output/v%v/fileSequence~%03d.ts',
'/home/Documents/videotrans/video-transcoder/api/videoFiles/output/v%v/prog_index.m3u8'
]);


  


  Here I'm using the spawn of a child process of FFMPEG I need to transcode the video input into four different resolutions in m3u8 format. There will be master.m3u8 and folders v0, v1, v2, and v3 ; inside those folders, there should be pro_index.m3u8 file and multiple file-sequence files according to input file size

  


  The HLS segment filename is not incrementing properly So the process is failing

  


  how to increment fileSequence file names ?
fileSequence%d.ts or fileSequence%03d.ts in not work here

  


• Batch-converting multimedia-files on Command-Line using find and ffmpeg (Linux)

  11 mai 2018, par free_speech

  For converting more Audio-Files (Let’s say, FLAC to MP3) in the same folder on Command-Line, I formerly used

  find ./ -name "*.flac" -exec ffmpeg -i "{}" -b:a 320k "{}".mp3 \;

  but the problem is that the resulting MP3-Files are named like Artist - Title.flac.mp3.
  This doesn’t even surprise me, but what do I have to type if I want to avoid the ".flac.mp3"-Filenames ?
  The converted Files should be named like Artist - Title.mp3, not this .flac.mp3
  I didn’t yet find a way to solve this problem ...
  Thanks.