I have a bitmap that I want to send to the server by encoding it to base64 but I do not want to compress the image in either png or jpeg.
Now what I was previously doing was.
ByteArrayOutputStream byteArrayBitmapStream = new ByteArrayOutputStream();
bitmapPicture.compress(Bitmap.CompressFormat.PNG, COMPRESSION_QUALITY, byteArrayBitmapStream);
byte b = byteArrayBitmapStream.toByteArray();
//then simple encoding to base64 and off to server
encodedImage = Base64.encodeToString(b, Base64.NO_WRAP);
copyPixelsToBuffer() is probably what you'll want to use, so here is an example on how you can use it:
//b is the Bitmap //calculate how many bytes our image consists of. int bytes = b.getByteCount(); //or we can calculate bytes this way. Use a different value than 4 if you don't use 32bit images. //int bytes = b.getWidth()*b.getHeight()*4; ByteBuffer buffer = ByteBuffer.allocate(bytes); //Create a new buffer b.copyPixelsToBuffer(buffer); //Move the byte data to the buffer byte array = buffer.array(); //Get the underlying array containing the data.