private boolean ffmpegIsCorrectlyInstalled() {
File ffmpegTargetLocation = AndroidFFMPEGLocator.ffmpegTargetLocation();
// assumed to be correct if existing and executable and larger than 1MB:
return ffmpegTargetLocation.exists()
&& ffmpegTargetLocation.canExecute()
&& ffmpegTargetLocation.length() > 1000000;
}
private void unpackFFmpeg(AssetManager assetManager, String ffmpegAssetFileName) {
InputStream inputStream = null;
OutputStream outputStream = null;
try {
File ffmpegTargetLocation = AndroidFFMPEGLocator.ffmpegTargetLocation();
inputStream = assetManager.open(ffmpegAssetFileName);
outputStream = new FileOutputStream(ffmpegTargetLocation);
byte buffer[] = new byte[1024];
int length = 0;
while ((length = inputStream.read(buffer)) > 0) {
outputStream.write(buffer, 0, length);
}
// makes ffmpeg executable
ffmpegTargetLocation.setExecutable(true);
Log.i(
TAG,
"Unpacked ffmpeg binary "
+ ffmpegAssetFileName
+ " , extracted "
+ ffmpegTargetLocation.length()
+ " bytes. Extracted to: "
+ ffmpegTargetLocation.getAbsolutePath());
} catch (IOException e) {
e.printStackTrace();
} finally {
// cleanup
try {
if (inputStream != null) {
inputStream.close();
}
} catch (IOException e) {
e.printStackTrace();
}
try {
if (outputStream != null) {
outputStream.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
public AndroidFFMPEGLocator(Context context) {
CPUArchitecture architecture = getCPUArchitecture();
Log.i(TAG, "Detected Native CPU Architecture: " + architecture.name());
if (!ffmpegIsCorrectlyInstalled()) {
String ffmpegFileName = getFFMPEGFileName(architecture);
AssetManager assetManager = context.getAssets();
unpackFFmpeg(assetManager, ffmpegFileName);
}
File ffmpegTargetLocation = AndroidFFMPEGLocator.ffmpegTargetLocation();
Log.i(
TAG,
"Ffmpeg binary location: "
+ ffmpegTargetLocation.getAbsolutePath()
+ " is executable? "
+ ffmpegTargetLocation.canExecute()
+ " size: "
+ ffmpegTargetLocation.length()
+ " bytes");
}