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package org.brotli.dec;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class Decoder {
private static long decodeBytes(InputStream input, OutputStream output, byte[] buffer)
throws IOException {
long totalOut = 0;
int readBytes;
BrotliInputStream in = new BrotliInputStream(input);
in.enableLargeWindow();
try {
while ((readBytes = in.read(buffer)) >= 0) {
output.write(buffer, 0, readBytes);
totalOut += readBytes;
}
} finally {
in.close();
}
return totalOut;
}
public static void main(String... args) throws IOException {
if (args.length != 2) {
System.out.println("Usage: decoder <compressed_in> <decompressed_out>");
return;
}
byte[] buffer = new byte[1024 * 1024];
long start;
long bytesDecoded;
long end;
InputStream in = null;
OutputStream out = null;
try {
in = new FileInputStream(args[0]);
out = new FileOutputStream(args[1]);
start = System.nanoTime();
bytesDecoded = decodeBytes(in, out, buffer);
end = System.nanoTime();
} finally {
if (in != null) {
in.close(); // Hopefully, does not throw exception.
}
if (out != null) {
out.close();
}
}
double timeDelta = (end - start) / 1000000000.0;
if (timeDelta <= 0) {
return;
}
double mbDecoded = bytesDecoded / (1024.0 * 1024.0);
System.out.println(mbDecoded / timeDelta + " MiB/s");
}
}
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