android-ffmpeg

To crop video in Android app I use ffmpeg library In SO example I found for cropping the video the following command: ffmpeg -i in.mp4 -filter:v "crop=out_w:out_h:x:y" out.mp4 I created a String array: String[] cmd = {"ffmpeg", "-i", originalVideoPath, "-vf", "\"crop=" + imageWidth + ":" + imageHeight + ":" + xCoordinate + ":" + yCoordinate + "\"", "-c:a", "copy", croppedVideoPath}; And I pass this array to execute() method: try { ffmpeg = FFmpeg.getInstance(getContext()); ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() { @Override public void onStart() { Log.i(TAG, "onStart: Crop Video

I am using this binding library for FFMpeg: https://github.com/gperozzo/XamarinAndroidFFmpeg My goal is to mix two audio files. String s = "-i " + "test.wav" + " -i " + test2.mp3 + " -filter_complex amix=inputs=2:duration=first " + "result.mp3"; Device.BeginInvokeOnMainThread(async () => { await FFMpeg.Xamarin.FFmpegLibrary.Run(Forms.Context, s); }); So I have 2 input files: one is .mp3 and another one is .wav. I've tried also next commands: String s= "-i "+ "test.wav" +" -i "+ "test2.mp3" + " -filter_complex [0:0][1:0]concat=n=2:v=0:a=1[out] -map [out] " + "result.mp3"; String s = "-i " +

Trying to compile the FFMPEG-3.4 with Android-NDK-16.1. Compiling the source on Mac. Getting below Warnings/Errors: WARNING: /Users/strehan/Library/Android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-pkg-config not found, library detection may fail. Error: In file included from libavdevice/avdevice.c:19:0:./libavutil/avassert.h:30:20: fatal error: stdlib.h: No such file or directory Error: /Users/strehan/Library/Android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/include

I am adding image watermark to video with help of FFmpeg but FFmpeg takes an inordinate amount of time with the below command- String[] cmd = {"-i",videoPath, "-i", waterMark.toString(),"-filter_complex","overlay=5:5","-codec:a", "copy", outputPath}; so i tried another command which was little bit faster but increase output file size(which i do not want) String[] cmd = {"-y","-i", videoPath, "-i", waterMark.toString(), "-filter_complex", "overlay=5:5", "-c:v","libx264","-preset", "ultrafast", outputPath}; Some one please explain to me how to increase the speed of FFmpeg watermarking speed

Excuse me, quick question: I have this routine of video stream, where I receive packets, convert them to byte[] ,then to bitmaps, then display them on the screen: dsocket.receive(packetReceived); // receive packet byte[] buff = packetReceived.getData(); // convert packet to byte[] final Bitmap ReceivedImage = BitmapFactory.decodeByteArray(buff, 0, buff.length); // convert byte[] to bitmap image runOnUiThread(new Runnable() { @Override public void run() { // this is executed on the main (UI) thread imageView.setImageBitmap(ReceivedImage); } }); Now, I want to implementing a Recording feature.

I want to cut and merge the videos.I used FFMPEG. I have implemented this library https://github.com/WritingMinds/ffmpeg-android-java . When i tested in android 8.0(Oreao) version. I got this issue " CANNOT LINK EXECUTABLE ... ffmpeg: has text relocations". I found they opened issue for that... https://github.com/WritingMinds/ffmpeg-android-java/issues/141...is that any library that support all devices. Please anyone help me. This is a "known problem" and concerns x86 (not Arm). This problem is present in other libraries too which are based on FFMpeg. Here are some links where you can read