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• FFmpegRecorder for recording Android videos from Camera

  28 novembre 2013, par Chirry

  1. I have seen the FFmpegRecorder class from FFMpeg in some files related to openCV for recording videos, specifically in FFmpegFrameRecorder class from OpenCV. How can I use this class or a similar one without using openCV ?

     As far as I have read, when you make an App using openCV, the final user will have to download some libs into his device and that is why I don't want to use OpenCV.

  2. If there is a way to make an App using openCV in which the final user don't have to download anything I would like to know it.

• Convert video to audio using FFMPEG with android native c

  11 décembre 2013, par Mr.G

  I have integrated FFMPEG into my application and I want to convert videos to audio files,

  But I want to do it using native implementation , (JNI) I don't want to use ffmpeg scripts ,

  I have already tried this

• What is an easy way to call a FFmpeg executable compiled for Android from java code ?

  6 février 2013, par dentex

  I have compiled FFmpeg for Android to suite my needs in terms of codecs, muxers etc.
  Now I have an executable that, from what I understand, should be placed in my project dir under /external//data/data//app_opt. What I have inside app_opt now is :

      .
  
  ├── bin
  
  │   └── ffmpeg
  
  ├── include
  
  │   ├── libavcodec
  
  │   │   ├── avcodec.h
  
  │   │   ├── avfft.h
  
  │   │   ├── dxva2.h
  
  │   │   ├── vaapi.h
  
  │   │   ├── vda.h
  
  │   │   ├── vdpau.h
  
  │   │   ├── version.h
  
  │   │   └── xvmc.h
  
  │   ├── libavdevice
  
  │   │   └── avdevice.h
  
  │   ├── libavfilter
  
  │   │   ├── asrc_abuffer.h
  
  │   │   ├── avcodec.h
  
  │   │   ├── avfiltergraph.h
  
  │   │   ├── avfilter.h
  
  │   │   ├── buffersink.h
  
  │   │   ├── buffersrc.h
  
  │   │   ├── version.h
  
  │   │   └── vsrc_buffer.h
  
  │   ├── libavformat
  
  │   │   ├── avformat.h
  
  │   │   ├── avio.h
  
  │   │   └── version.h
  
  │   ├── libavutil
  
  │   │   ├── adler32.h
  
  │   │   ├── aes.h
  
  │   │   ├── attributes.h
  
  │   │   ├── audioconvert.h
  
  │   │   ├── audio_fifo.h
  
  │   │   ├── avassert.h
  
  │   │   ├── avconfig.h
  
  │   │   ├── avstring.h
  
  │   │   ├── avutil.h
  
  │   │   ├── base64.h
  
  │   │   ├── bprint.h
  
  │   │   ├── bswap.h
  
  │   │   ├── common.h
  
  │   │   ├── cpu.h
  
  │   │   ├── crc.h
  
  │   │   ├── dict.h
  
  │   │   ├── error.h
  
  │   │   ├── eval.h
  
  │   │   ├── fifo.h
  
  │   │   ├── file.h
  
  │   │   ├── imgutils.h
  
  │   │   ├── intfloat.h
  
  │   │   ├── intfloat_readwrite.h
  
  │   │   ├── intreadwrite.h
  
  │   │   ├── lfg.h
  
  │   │   ├── log.h
  
  │   │   ├── lzo.h
  
  │   │   ├── mathematics.h
  
  │   │   ├── md5.h
  
  │   │   ├── mem.h
  
  │   │   ├── opt.h
  
  │   │   ├── parseutils.h
  
  │   │   ├── pixdesc.h
  
  │   │   ├── pixfmt.h
  
  │   │   ├── random_seed.h
  
  │   │   ├── rational.h
  
  │   │   ├── samplefmt.h
  
  │   │   ├── sha.h
  
  │   │   ├── timecode.h
  
  │   │   └── timestamp.h
  
  │   ├── libpostproc
  
  │   │   └── postprocess.h
  
  │   ├── libswresample
  
  │   │   └── swresample.h
  
  │   └── libswscale
  
  │       └── swscale.h
  
  ├── lib
  
  │   ├── libavcodec.a
  
  │   ├── libavdevice.a
  
  │   ├── libavfilter.a
  
  │   ├── libavformat.a
  
  │   ├── libavutil.a
  
  │   ├── libpostproc.a
  
  │   ├── libswresample.a
  
  │   ├── libswscale.a
  
  │   └── pkgconfig
  
  │       ├── libavcodec.pc
  
  │       ├── libavdevice.pc
  
  │       ├── libavfilter.pc
  
  │       ├── libavformat.pc
  
  │       ├── libavutil.pc
  
  │       ├── libpostproc.pc
  
  │       ├── libswresample.pc
  
  │       └── libswscale.pc
  
  └── share
  
      └── ffmpeg
  
          ├── examples
  
          │   ├── decoding_encoding.c
  
          │   ├── filtering_audio.c
  
          │   ├── filtering_video.c
  
          │   ├── Makefile
  
          │   ├── metadata.c
  
          │   └── muxing.c
  
          ├── ffprobe.xsd
  
          ├── libvpx-1080p50_60.ffpreset
  
          ├── libvpx-1080p.ffpreset
  
          ├── libvpx-360p.ffpreset
  
          ├── libvpx-720p50_60.ffpreset
  
          ├── libvpx-720p.ffpreset
  
          ├── libx264-ipod320.ffpreset
  
          └── libx264-ipod640.ffpreset

  Do I need just the ffmpeg under bin to place in my project's /res/raw dir ?

  And what is the easiest way to call ffmpeg and feed it with a command string ?

  I compiled FFmpeg with limited decoders and demuxers, because I need audio extraction only.

  See : How can I get FFmpeg to locate installed libraries when —sysroot is pointing to another directory ?

  I would use it in background and notify the user in notification bar on completion.

  I know that, here on SO, other similar questions are present, but they are a bit vague or confusing, at least for me. I understand at this point I lack of competences (actually my App is a jigsaw made of java-code-snippets from the Net that work together).

  I'd appreciate some guidance.
  Thanks.