Merge "ACodec: bypass crypto / descrambler if input is empty" into rvc-dev

    }

    ssize_t result = -1;

    ssize_t codecDataOffset = 0;

    if (mCrypto != NULL) {

    if (numSubSamples == 1

            && subSamples[0].mNumBytesOfClearData == 0

            && subSamples[0].mNumBytesOfEncryptedData == 0) {

        // We don't need to go through crypto or descrambler if the input is empty.

        result = 0;

    } else if (mCrypto != NULL) {

        hardware::drm::V1_0::DestinationBuffer destination;

        if (secure) {

            destination.type = DrmBufferType::NATIVE_HANDLE;