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• ffmpeg binary for android not working

  29 juillet 2014, par Abdul Qadir

  I’ve copied the ffmpeg binary provided here in the res/raw folder into my project’s assets folder. Whenever I need to run ffmpeg commands, I copy the binary into data/data/my-package-name/ and run the following command to check if everything works.

  Process process = Runtime.getRuntime().exec(ffmpegBinaryFilePath + " -version");

  I get the output by logging the stream by process.getInputStream(). Everything works as expected. But the binary provided in the project is old (version 0.11.1) and I also need to enable lame library to work with mp3 extension. So I decided to build my own binary. I’ve build using this script and also another script showed here. When I place the build binary into my project’s assets folder. I get no output when I run the code above i.e. the log is empty. I’ve also tried building with this script but it doesn’t create any binary i.e. there is no bin folder when compilation is finished.

  I’ve made ndk related changes to these scripts i.e. changed NDK, PLATFORM and PREBUILT variables (I have ndk10 64bit) and changed --enable-shared --disable-static to --disable-shared --enable-static. Also cleared any references to other libraries in the --extra-cflags and --extra-ldflags. Do I need to make any more changes ? Any help would be appreciated !!

  EDIT :

  here’s the log file of my latest build
  http://justpaste.it/gfeb

• Revision b683eecf6d : Test upscaling as well as downscaling Fixes a bug in vp9_set_internal_size() th

  21 février 2013, par John Koleszar

  Changed Paths : Modify /test/resize_test.cc Modify /vp9/encoder/vp9_onyx_if.c Test upscaling as well as downscaling Fixes a bug in vp9_set_internal_size() that prevented returning to the unscaled state. Updated the ResizeInternalTest to scale both down and up. Added a check that all frames are (...)

• FFMPEG crop a portrait image square with pan and zoom scale in mind

  30 septembre 2022, par hugger

  I am making a photo crop component for my mobile app.

  


  If an image is selected from the image picker and it is above 4:5 ratio, using FFMPEG I need to crop this image 1:1 using the dynamic X/Y values along with the scale value from pinching (1.00 - 10).

  


  I trying to use these values with the FFMPEG crop/scale filter, but no matter what I try I cant seem to get the crop to work as expected... It is not matching up from the UI pan / zoom.

  


  My FFMPEG command looks like this, along with some other relevant variable code :

  


  let zoom = this._scale.__getValue(); //set dynamically by the user; ranges from 0.1 to 10
let translateY = this._translateX.__getValue(); //amount from left side
let translateX = this._translateY.__getValue(); // amount from top

//trying to first crop the width and height / the zoom for the zoom scaling..?
//then I am using translate X/Y to get my coordinates (not matching up)
//I tried to use translateXY * zoom to get the scaling factor but it still did not work...
//the image needs to be square, chain scale filter to make this happen after the original crop?)
FFmpegKit.execute(
  `-y -i ${this.state.mediaSource} -vf "crop=iw/${zoom}:ih/${zoom}:${translateX}:${translateY}, scale=iw:iw:0:0" -qscale 0 -frames:v 1 ${filterPathPostCrop}`
).then(async (session) => {
  const returnCode = await session.getReturnCode();
  if (ReturnCode.isSuccess(returnCode)) {
    this.setState({
      mediaSource: filterPathPostCrop,
      videoSourcePreview: `${filterPathPostCrop}?${new Date().getTime()}`,
      ffMPEGinProgress: null,
      aspectRatio: 1080 / 1080,
      videoTime: 0,
      isPlayingVideo: false,
      isCropping: false,
      filterOutputIsAlt: !this.state.filterOutputIsAlt,
      wasCropped: true,
    });
  } else if (ReturnCode.isCancel(returnCode)) {
    // CANCEL
  } else {
    // ERROR
    alert('error');
  }
});


  


  I appreciate any guidance I can get with this, I feel like I am close I just cant seem to get this calculation working...